nextcloud / server

lib/private/Share20/Manager.php

Indentation +1531 added lines, -1531 removed lines

@@ -72,1559 +72,1559 @@
  */
 class Manager implements IManager {
 
-	/** @var IProviderFactory */
-	private $factory;
-	/** @var ILogger */
-	private $logger;
-	/** @var IConfig */
-	private $config;
-	/** @var ISecureRandom */
-	private $secureRandom;
-	/** @var IHasher */
-	private $hasher;
-	/** @var IMountManager */
-	private $mountManager;
-	/** @var IGroupManager */
-	private $groupManager;
-	/** @var IL10N */
-	private $l;
-	/** @var IFactory */
-	private $l10nFactory;
-	/** @var IUserManager */
-	private $userManager;
-	/** @var IRootFolder */
-	private $rootFolder;
-	/** @var CappedMemoryCache */
-	private $sharingDisabledForUsersCache;
-	/** @var EventDispatcher */
-	private $eventDispatcher;
-	/** @var LegacyHooks */
-	private $legacyHooks;
-	/** @var IMailer */
-	private $mailer;
-	/** @var IURLGenerator */
-	private $urlGenerator;
-	/** @var \OC_Defaults */
-	private $defaults;
-
-
-	/**
-	 * Manager constructor.
-	 *
-	 * @param ILogger $logger
-	 * @param IConfig $config
-	 * @param ISecureRandom $secureRandom
-	 * @param IHasher $hasher
-	 * @param IMountManager $mountManager
-	 * @param IGroupManager $groupManager
-	 * @param IL10N $l
-	 * @param IFactory $l10nFactory
-	 * @param IProviderFactory $factory
-	 * @param IUserManager $userManager
-	 * @param IRootFolder $rootFolder
-	 * @param EventDispatcher $eventDispatcher
-	 * @param IMailer $mailer
-	 * @param IURLGenerator $urlGenerator
-	 * @param \OC_Defaults $defaults
-	 */
-	public function __construct(
-			ILogger $logger,
-			IConfig $config,
-			ISecureRandom $secureRandom,
-			IHasher $hasher,
-			IMountManager $mountManager,
-			IGroupManager $groupManager,
-			IL10N $l,
-			IFactory $l10nFactory,
-			IProviderFactory $factory,
-			IUserManager $userManager,
-			IRootFolder $rootFolder,
-			EventDispatcher $eventDispatcher,
-			IMailer $mailer,
-			IURLGenerator $urlGenerator,
-			\OC_Defaults $defaults
-	) {
-		$this->logger = $logger;
-		$this->config = $config;
-		$this->secureRandom = $secureRandom;
-		$this->hasher = $hasher;
-		$this->mountManager = $mountManager;
-		$this->groupManager = $groupManager;
-		$this->l = $l;
-		$this->l10nFactory = $l10nFactory;
-		$this->factory = $factory;
-		$this->userManager = $userManager;
-		$this->rootFolder = $rootFolder;
-		$this->eventDispatcher = $eventDispatcher;
-		$this->sharingDisabledForUsersCache = new CappedMemoryCache();
-		$this->legacyHooks = new LegacyHooks($this->eventDispatcher);
-		$this->mailer = $mailer;
-		$this->urlGenerator = $urlGenerator;
-		$this->defaults = $defaults;
-	}
-
-	/**
-	 * Convert from a full share id to a tuple (providerId, shareId)
-	 *
-	 * @param string $id
-	 * @return string[]
-	 */
-	private function splitFullId($id) {
-		return explode(':', $id, 2);
-	}
-
-	/**
-	 * Verify if a password meets all requirements
-	 *
-	 * @param string $password
-	 * @throws \Exception
-	 */
-	protected function verifyPassword($password) {
-		if ($password === null) {
-			// No password is set, check if this is allowed.
-			if ($this->shareApiLinkEnforcePassword()) {
-				throw new \InvalidArgumentException('Passwords are enforced for link shares');
-			}
-
-			return;
-		}
-
-		// Let others verify the password
-		try {
-			$event = new GenericEvent($password);
-			$this->eventDispatcher->dispatch('OCP\PasswordPolicy::validate', $event);
-		} catch (HintException $e) {
-			throw new \Exception($e->getHint());
-		}
-	}
-
-	/**
-	 * Check for generic requirements before creating a share
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @throws \InvalidArgumentException
-	 * @throws GenericShareException
-	 *
-	 * @suppress PhanUndeclaredClassMethod
-	 */
-	protected function generalCreateChecks(\OCP\Share\IShare $share) {
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
-			// We expect a valid user as sharedWith for user shares
-			if (!$this->userManager->userExists($share->getSharedWith())) {
-				throw new \InvalidArgumentException('SharedWith is not a valid user');
-			}
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
-			// We expect a valid group as sharedWith for group shares
-			if (!$this->groupManager->groupExists($share->getSharedWith())) {
-				throw new \InvalidArgumentException('SharedWith is not a valid group');
-			}
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
-			if ($share->getSharedWith() !== null) {
-				throw new \InvalidArgumentException('SharedWith should be empty');
-			}
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_REMOTE) {
-			if ($share->getSharedWith() === null) {
-				throw new \InvalidArgumentException('SharedWith should not be empty');
-			}
-		}  else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_REMOTE_GROUP) {
-			if ($share->getSharedWith() === null) {
-				throw new \InvalidArgumentException('SharedWith should not be empty');
-			}
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
-			if ($share->getSharedWith() === null) {
-				throw new \InvalidArgumentException('SharedWith should not be empty');
-			}
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_CIRCLE) {
-			$circle = \OCA\Circles\Api\v1\Circles::detailsCircle($share->getSharedWith());
-			if ($circle === null) {
-				throw new \InvalidArgumentException('SharedWith is not a valid circle');
-			}
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_ROOM) {
-		} else {
-			// We can't handle other types yet
-			throw new \InvalidArgumentException('unknown share type');
-		}
-
-		// Verify the initiator of the share is set
-		if ($share->getSharedBy() === null) {
-			throw new \InvalidArgumentException('SharedBy should be set');
-		}
-
-		// Cannot share with yourself
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
-			$share->getSharedWith() === $share->getSharedBy()) {
-			throw new \InvalidArgumentException('Can’t share with yourself');
-		}
-
-		// The path should be set
-		if ($share->getNode() === null) {
-			throw new \InvalidArgumentException('Path should be set');
-		}
-
-		// And it should be a file or a folder
-		if (!($share->getNode() instanceof \OCP\Files\File) &&
-				!($share->getNode() instanceof \OCP\Files\Folder)) {
-			throw new \InvalidArgumentException('Path should be either a file or a folder');
-		}
-
-		// And you can't share your rootfolder
-		if ($this->userManager->userExists($share->getSharedBy())) {
-			$sharedPath = $this->rootFolder->getUserFolder($share->getSharedBy())->getPath();
-		} else {
-			$sharedPath = $this->rootFolder->getUserFolder($share->getShareOwner())->getPath();
-		}
-		if ($sharedPath === $share->getNode()->getPath()) {
-			throw new \InvalidArgumentException('You can’t share your root folder');
-		}
-
-		// Check if we actually have share permissions
-		if (!$share->getNode()->isShareable()) {
-			$message_t = $this->l->t('You are not allowed to share %s', [$share->getNode()->getPath()]);
-			throw new GenericShareException($message_t, $message_t, 404);
-		}
-
-		// Permissions should be set
-		if ($share->getPermissions() === null) {
-			throw new \InvalidArgumentException('A share requires permissions');
-		}
-
-		/*
+    /** @var IProviderFactory */
+    private $factory;
+    /** @var ILogger */
+    private $logger;
+    /** @var IConfig */
+    private $config;
+    /** @var ISecureRandom */
+    private $secureRandom;
+    /** @var IHasher */
+    private $hasher;
+    /** @var IMountManager */
+    private $mountManager;
+    /** @var IGroupManager */
+    private $groupManager;
+    /** @var IL10N */
+    private $l;
+    /** @var IFactory */
+    private $l10nFactory;
+    /** @var IUserManager */
+    private $userManager;
+    /** @var IRootFolder */
+    private $rootFolder;
+    /** @var CappedMemoryCache */
+    private $sharingDisabledForUsersCache;
+    /** @var EventDispatcher */
+    private $eventDispatcher;
+    /** @var LegacyHooks */
+    private $legacyHooks;
+    /** @var IMailer */
+    private $mailer;
+    /** @var IURLGenerator */
+    private $urlGenerator;
+    /** @var \OC_Defaults */
+    private $defaults;
+
+
+    /**
+     * Manager constructor.
+     *
+     * @param ILogger $logger
+     * @param IConfig $config
+     * @param ISecureRandom $secureRandom
+     * @param IHasher $hasher
+     * @param IMountManager $mountManager
+     * @param IGroupManager $groupManager
+     * @param IL10N $l
+     * @param IFactory $l10nFactory
+     * @param IProviderFactory $factory
+     * @param IUserManager $userManager
+     * @param IRootFolder $rootFolder
+     * @param EventDispatcher $eventDispatcher
+     * @param IMailer $mailer
+     * @param IURLGenerator $urlGenerator
+     * @param \OC_Defaults $defaults
+     */
+    public function __construct(
+            ILogger $logger,
+            IConfig $config,
+            ISecureRandom $secureRandom,
+            IHasher $hasher,
+            IMountManager $mountManager,
+            IGroupManager $groupManager,
+            IL10N $l,
+            IFactory $l10nFactory,
+            IProviderFactory $factory,
+            IUserManager $userManager,
+            IRootFolder $rootFolder,
+            EventDispatcher $eventDispatcher,
+            IMailer $mailer,
+            IURLGenerator $urlGenerator,
+            \OC_Defaults $defaults
+    ) {
+        $this->logger = $logger;
+        $this->config = $config;
+        $this->secureRandom = $secureRandom;
+        $this->hasher = $hasher;
+        $this->mountManager = $mountManager;
+        $this->groupManager = $groupManager;
+        $this->l = $l;
+        $this->l10nFactory = $l10nFactory;
+        $this->factory = $factory;
+        $this->userManager = $userManager;
+        $this->rootFolder = $rootFolder;
+        $this->eventDispatcher = $eventDispatcher;
+        $this->sharingDisabledForUsersCache = new CappedMemoryCache();
+        $this->legacyHooks = new LegacyHooks($this->eventDispatcher);
+        $this->mailer = $mailer;
+        $this->urlGenerator = $urlGenerator;
+        $this->defaults = $defaults;
+    }
+
+    /**
+     * Convert from a full share id to a tuple (providerId, shareId)
+     *
+     * @param string $id
+     * @return string[]
+     */
+    private function splitFullId($id) {
+        return explode(':', $id, 2);
+    }
+
+    /**
+     * Verify if a password meets all requirements
+     *
+     * @param string $password
+     * @throws \Exception
+     */
+    protected function verifyPassword($password) {
+        if ($password === null) {
+            // No password is set, check if this is allowed.
+            if ($this->shareApiLinkEnforcePassword()) {
+                throw new \InvalidArgumentException('Passwords are enforced for link shares');
+            }
+
+            return;
+        }
+
+        // Let others verify the password
+        try {
+            $event = new GenericEvent($password);
+            $this->eventDispatcher->dispatch('OCP\PasswordPolicy::validate', $event);
+        } catch (HintException $e) {
+            throw new \Exception($e->getHint());
+        }
+    }
+
+    /**
+     * Check for generic requirements before creating a share
+     *
+     * @param \OCP\Share\IShare $share
+     * @throws \InvalidArgumentException
+     * @throws GenericShareException
+     *
+     * @suppress PhanUndeclaredClassMethod
+     */
+    protected function generalCreateChecks(\OCP\Share\IShare $share) {
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
+            // We expect a valid user as sharedWith for user shares
+            if (!$this->userManager->userExists($share->getSharedWith())) {
+                throw new \InvalidArgumentException('SharedWith is not a valid user');
+            }
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
+            // We expect a valid group as sharedWith for group shares
+            if (!$this->groupManager->groupExists($share->getSharedWith())) {
+                throw new \InvalidArgumentException('SharedWith is not a valid group');
+            }
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
+            if ($share->getSharedWith() !== null) {
+                throw new \InvalidArgumentException('SharedWith should be empty');
+            }
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_REMOTE) {
+            if ($share->getSharedWith() === null) {
+                throw new \InvalidArgumentException('SharedWith should not be empty');
+            }
+        }  else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_REMOTE_GROUP) {
+            if ($share->getSharedWith() === null) {
+                throw new \InvalidArgumentException('SharedWith should not be empty');
+            }
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
+            if ($share->getSharedWith() === null) {
+                throw new \InvalidArgumentException('SharedWith should not be empty');
+            }
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_CIRCLE) {
+            $circle = \OCA\Circles\Api\v1\Circles::detailsCircle($share->getSharedWith());
+            if ($circle === null) {
+                throw new \InvalidArgumentException('SharedWith is not a valid circle');
+            }
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_ROOM) {
+        } else {
+            // We can't handle other types yet
+            throw new \InvalidArgumentException('unknown share type');
+        }
+
+        // Verify the initiator of the share is set
+        if ($share->getSharedBy() === null) {
+            throw new \InvalidArgumentException('SharedBy should be set');
+        }
+
+        // Cannot share with yourself
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
+            $share->getSharedWith() === $share->getSharedBy()) {
+            throw new \InvalidArgumentException('Can’t share with yourself');
+        }
+
+        // The path should be set
+        if ($share->getNode() === null) {
+            throw new \InvalidArgumentException('Path should be set');
+        }
+
+        // And it should be a file or a folder
+        if (!($share->getNode() instanceof \OCP\Files\File) &&
+                !($share->getNode() instanceof \OCP\Files\Folder)) {
+            throw new \InvalidArgumentException('Path should be either a file or a folder');
+        }
+
+        // And you can't share your rootfolder
+        if ($this->userManager->userExists($share->getSharedBy())) {
+            $sharedPath = $this->rootFolder->getUserFolder($share->getSharedBy())->getPath();
+        } else {
+            $sharedPath = $this->rootFolder->getUserFolder($share->getShareOwner())->getPath();
+        }
+        if ($sharedPath === $share->getNode()->getPath()) {
+            throw new \InvalidArgumentException('You can’t share your root folder');
+        }
+
+        // Check if we actually have share permissions
+        if (!$share->getNode()->isShareable()) {
+            $message_t = $this->l->t('You are not allowed to share %s', [$share->getNode()->getPath()]);
+            throw new GenericShareException($message_t, $message_t, 404);
+        }
+
+        // Permissions should be set
+        if ($share->getPermissions() === null) {
+            throw new \InvalidArgumentException('A share requires permissions');
+        }
+
+        /*
 		 * Quick fix for #23536
 		 * Non moveable mount points do not have update and delete permissions
 		 * while we 'most likely' do have that on the storage.
 		 */
-		$permissions = $share->getNode()->getPermissions();
-		$mount = $share->getNode()->getMountPoint();
-		if (!($mount instanceof MoveableMount)) {
-			$permissions |= \OCP\Constants::PERMISSION_DELETE | \OCP\Constants::PERMISSION_UPDATE;
-		}
-
-		// Check that we do not share with more permissions than we have
-		if ($share->getPermissions() & ~$permissions) {
-			$message_t = $this->l->t('Can’t increase permissions of %s', [$share->getNode()->getPath()]);
-			throw new GenericShareException($message_t, $message_t, 404);
-		}
-
-
-		// Check that read permissions are always set
-		// Link shares are allowed to have no read permissions to allow upload to hidden folders
-		$noReadPermissionRequired = $share->getShareType() === \OCP\Share::SHARE_TYPE_LINK
-			|| $share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL;
-		if (!$noReadPermissionRequired &&
-			($share->getPermissions() & \OCP\Constants::PERMISSION_READ) === 0) {
-			throw new \InvalidArgumentException('Shares need at least read permissions');
-		}
-
-		if ($share->getNode() instanceof \OCP\Files\File) {
-			if ($share->getPermissions() & \OCP\Constants::PERMISSION_DELETE) {
-				$message_t = $this->l->t('Files can’t be shared with delete permissions');
-				throw new GenericShareException($message_t);
-			}
-			if ($share->getPermissions() & \OCP\Constants::PERMISSION_CREATE) {
-				$message_t = $this->l->t('Files can’t be shared with create permissions');
-				throw new GenericShareException($message_t);
-			}
-		}
-	}
-
-	/**
-	 * Validate if the expiration date fits the system settings
-	 *
-	 * @param \OCP\Share\IShare $share The share to validate the expiration date of
-	 * @return \OCP\Share\IShare The modified share object
-	 * @throws GenericShareException
-	 * @throws \InvalidArgumentException
-	 * @throws \Exception
-	 */
-	protected function validateExpirationDate(\OCP\Share\IShare $share) {
-
-		$expirationDate = $share->getExpirationDate();
-
-		if ($expirationDate !== null) {
-			//Make sure the expiration date is a date
-			$expirationDate->setTime(0, 0, 0);
-
-			$date = new \DateTime();
-			$date->setTime(0, 0, 0);
-			if ($date >= $expirationDate) {
-				$message = $this->l->t('Expiration date is in the past');
-				throw new GenericShareException($message, $message, 404);
-			}
-		}
-
-		// If expiredate is empty set a default one if there is a default
-		$fullId = null;
-		try {
-			$fullId = $share->getFullId();
-		} catch (\UnexpectedValueException $e) {
-			// This is a new share
-		}
-
-		if ($fullId === null && $expirationDate === null && $this->shareApiLinkDefaultExpireDate()) {
-			$expirationDate = new \DateTime();
-			$expirationDate->setTime(0,0,0);
-			$expirationDate->add(new \DateInterval('P'.$this->shareApiLinkDefaultExpireDays().'D'));
-		}
-
-		// If we enforce the expiration date check that is does not exceed
-		if ($this->shareApiLinkDefaultExpireDateEnforced()) {
-			if ($expirationDate === null) {
-				throw new \InvalidArgumentException('Expiration date is enforced');
-			}
-
-			$date = new \DateTime();
-			$date->setTime(0, 0, 0);
-			$date->add(new \DateInterval('P' . $this->shareApiLinkDefaultExpireDays() . 'D'));
-			if ($date < $expirationDate) {
-				$message = $this->l->t('Can’t set expiration date more than %s days in the future', [$this->shareApiLinkDefaultExpireDays()]);
-				throw new GenericShareException($message, $message, 404);
-			}
-		}
-
-		$accepted = true;
-		$message = '';
-		\OCP\Util::emitHook('\OC\Share', 'verifyExpirationDate', [
-			'expirationDate' => &$expirationDate,
-			'accepted' => &$accepted,
-			'message' => &$message,
-			'passwordSet' => $share->getPassword() !== null,
-		]);
-
-		if (!$accepted) {
-			throw new \Exception($message);
-		}
-
-		$share->setExpirationDate($expirationDate);
-
-		return $share;
-	}
-
-	/**
-	 * Check for pre share requirements for user shares
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @throws \Exception
-	 */
-	protected function userCreateChecks(\OCP\Share\IShare $share) {
-		// Check if we can share with group members only
-		if ($this->shareWithGroupMembersOnly()) {
-			$sharedBy = $this->userManager->get($share->getSharedBy());
-			$sharedWith = $this->userManager->get($share->getSharedWith());
-			// Verify we can share with this user
-			$groups = array_intersect(
-					$this->groupManager->getUserGroupIds($sharedBy),
-					$this->groupManager->getUserGroupIds($sharedWith)
-			);
-			if (empty($groups)) {
-				throw new \Exception('Sharing is only allowed with group members');
-			}
-		}
-
-		/*
+        $permissions = $share->getNode()->getPermissions();
+        $mount = $share->getNode()->getMountPoint();
+        if (!($mount instanceof MoveableMount)) {
+            $permissions |= \OCP\Constants::PERMISSION_DELETE | \OCP\Constants::PERMISSION_UPDATE;
+        }
+
+        // Check that we do not share with more permissions than we have
+        if ($share->getPermissions() & ~$permissions) {
+            $message_t = $this->l->t('Can’t increase permissions of %s', [$share->getNode()->getPath()]);
+            throw new GenericShareException($message_t, $message_t, 404);
+        }
+
+
+        // Check that read permissions are always set
+        // Link shares are allowed to have no read permissions to allow upload to hidden folders
+        $noReadPermissionRequired = $share->getShareType() === \OCP\Share::SHARE_TYPE_LINK
+            || $share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL;
+        if (!$noReadPermissionRequired &&
+            ($share->getPermissions() & \OCP\Constants::PERMISSION_READ) === 0) {
+            throw new \InvalidArgumentException('Shares need at least read permissions');
+        }
+
+        if ($share->getNode() instanceof \OCP\Files\File) {
+            if ($share->getPermissions() & \OCP\Constants::PERMISSION_DELETE) {
+                $message_t = $this->l->t('Files can’t be shared with delete permissions');
+                throw new GenericShareException($message_t);
+            }
+            if ($share->getPermissions() & \OCP\Constants::PERMISSION_CREATE) {
+                $message_t = $this->l->t('Files can’t be shared with create permissions');
+                throw new GenericShareException($message_t);
+            }
+        }
+    }
+
+    /**
+     * Validate if the expiration date fits the system settings
+     *
+     * @param \OCP\Share\IShare $share The share to validate the expiration date of
+     * @return \OCP\Share\IShare The modified share object
+     * @throws GenericShareException
+     * @throws \InvalidArgumentException
+     * @throws \Exception
+     */
+    protected function validateExpirationDate(\OCP\Share\IShare $share) {
+
+        $expirationDate = $share->getExpirationDate();
+
+        if ($expirationDate !== null) {
+            //Make sure the expiration date is a date
+            $expirationDate->setTime(0, 0, 0);
+
+            $date = new \DateTime();
+            $date->setTime(0, 0, 0);
+            if ($date >= $expirationDate) {
+                $message = $this->l->t('Expiration date is in the past');
+                throw new GenericShareException($message, $message, 404);
+            }
+        }
+
+        // If expiredate is empty set a default one if there is a default
+        $fullId = null;
+        try {
+            $fullId = $share->getFullId();
+        } catch (\UnexpectedValueException $e) {
+            // This is a new share
+        }
+
+        if ($fullId === null && $expirationDate === null && $this->shareApiLinkDefaultExpireDate()) {
+            $expirationDate = new \DateTime();
+            $expirationDate->setTime(0,0,0);
+            $expirationDate->add(new \DateInterval('P'.$this->shareApiLinkDefaultExpireDays().'D'));
+        }
+
+        // If we enforce the expiration date check that is does not exceed
+        if ($this->shareApiLinkDefaultExpireDateEnforced()) {
+            if ($expirationDate === null) {
+                throw new \InvalidArgumentException('Expiration date is enforced');
+            }
+
+            $date = new \DateTime();
+            $date->setTime(0, 0, 0);
+            $date->add(new \DateInterval('P' . $this->shareApiLinkDefaultExpireDays() . 'D'));
+            if ($date < $expirationDate) {
+                $message = $this->l->t('Can’t set expiration date more than %s days in the future', [$this->shareApiLinkDefaultExpireDays()]);
+                throw new GenericShareException($message, $message, 404);
+            }
+        }
+
+        $accepted = true;
+        $message = '';
+        \OCP\Util::emitHook('\OC\Share', 'verifyExpirationDate', [
+            'expirationDate' => &$expirationDate,
+            'accepted' => &$accepted,
+            'message' => &$message,
+            'passwordSet' => $share->getPassword() !== null,
+        ]);
+
+        if (!$accepted) {
+            throw new \Exception($message);
+        }
+
+        $share->setExpirationDate($expirationDate);
+
+        return $share;
+    }
+
+    /**
+     * Check for pre share requirements for user shares
+     *
+     * @param \OCP\Share\IShare $share
+     * @throws \Exception
+     */
+    protected function userCreateChecks(\OCP\Share\IShare $share) {
+        // Check if we can share with group members only
+        if ($this->shareWithGroupMembersOnly()) {
+            $sharedBy = $this->userManager->get($share->getSharedBy());
+            $sharedWith = $this->userManager->get($share->getSharedWith());
+            // Verify we can share with this user
+            $groups = array_intersect(
+                    $this->groupManager->getUserGroupIds($sharedBy),
+                    $this->groupManager->getUserGroupIds($sharedWith)
+            );
+            if (empty($groups)) {
+                throw new \Exception('Sharing is only allowed with group members');
+            }
+        }
+
+        /*
 		 * TODO: Could be costly, fix
 		 *
 		 * Also this is not what we want in the future.. then we want to squash identical shares.
 		 */
-		$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_USER);
-		$existingShares = $provider->getSharesByPath($share->getNode());
-		foreach($existingShares as $existingShare) {
-			// Ignore if it is the same share
-			try {
-				if ($existingShare->getFullId() === $share->getFullId()) {
-					continue;
-				}
-			} catch (\UnexpectedValueException $e) {
-				//Shares are not identical
-			}
-
-			// Identical share already existst
-			if ($existingShare->getSharedWith() === $share->getSharedWith()) {
-				throw new \Exception('Path is already shared with this user');
-			}
-
-			// The share is already shared with this user via a group share
-			if ($existingShare->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
-				$group = $this->groupManager->get($existingShare->getSharedWith());
-				if (!is_null($group)) {
-					$user = $this->userManager->get($share->getSharedWith());
-
-					if ($group->inGroup($user) && $existingShare->getShareOwner() !== $share->getShareOwner()) {
-						throw new \Exception('Path is already shared with this user');
-					}
-				}
-			}
-		}
-	}
-
-	/**
-	 * Check for pre share requirements for group shares
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @throws \Exception
-	 */
-	protected function groupCreateChecks(\OCP\Share\IShare $share) {
-		// Verify group shares are allowed
-		if (!$this->allowGroupSharing()) {
-			throw new \Exception('Group sharing is now allowed');
-		}
-
-		// Verify if the user can share with this group
-		if ($this->shareWithGroupMembersOnly()) {
-			$sharedBy = $this->userManager->get($share->getSharedBy());
-			$sharedWith = $this->groupManager->get($share->getSharedWith());
-			if (is_null($sharedWith) || !$sharedWith->inGroup($sharedBy)) {
-				throw new \Exception('Sharing is only allowed within your own groups');
-			}
-		}
-
-		/*
+        $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_USER);
+        $existingShares = $provider->getSharesByPath($share->getNode());
+        foreach($existingShares as $existingShare) {
+            // Ignore if it is the same share
+            try {
+                if ($existingShare->getFullId() === $share->getFullId()) {
+                    continue;
+                }
+            } catch (\UnexpectedValueException $e) {
+                //Shares are not identical
+            }
+
+            // Identical share already existst
+            if ($existingShare->getSharedWith() === $share->getSharedWith()) {
+                throw new \Exception('Path is already shared with this user');
+            }
+
+            // The share is already shared with this user via a group share
+            if ($existingShare->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
+                $group = $this->groupManager->get($existingShare->getSharedWith());
+                if (!is_null($group)) {
+                    $user = $this->userManager->get($share->getSharedWith());
+
+                    if ($group->inGroup($user) && $existingShare->getShareOwner() !== $share->getShareOwner()) {
+                        throw new \Exception('Path is already shared with this user');
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Check for pre share requirements for group shares
+     *
+     * @param \OCP\Share\IShare $share
+     * @throws \Exception
+     */
+    protected function groupCreateChecks(\OCP\Share\IShare $share) {
+        // Verify group shares are allowed
+        if (!$this->allowGroupSharing()) {
+            throw new \Exception('Group sharing is now allowed');
+        }
+
+        // Verify if the user can share with this group
+        if ($this->shareWithGroupMembersOnly()) {
+            $sharedBy = $this->userManager->get($share->getSharedBy());
+            $sharedWith = $this->groupManager->get($share->getSharedWith());
+            if (is_null($sharedWith) || !$sharedWith->inGroup($sharedBy)) {
+                throw new \Exception('Sharing is only allowed within your own groups');
+            }
+        }
+
+        /*
 		 * TODO: Could be costly, fix
 		 *
 		 * Also this is not what we want in the future.. then we want to squash identical shares.
 		 */
-		$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
-		$existingShares = $provider->getSharesByPath($share->getNode());
-		foreach($existingShares as $existingShare) {
-			try {
-				if ($existingShare->getFullId() === $share->getFullId()) {
-					continue;
-				}
-			} catch (\UnexpectedValueException $e) {
-				//It is a new share so just continue
-			}
-
-			if ($existingShare->getSharedWith() === $share->getSharedWith()) {
-				throw new \Exception('Path is already shared with this group');
-			}
-		}
-	}
-
-	/**
-	 * Check for pre share requirements for link shares
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @throws \Exception
-	 */
-	protected function linkCreateChecks(\OCP\Share\IShare $share) {
-		// Are link shares allowed?
-		if (!$this->shareApiAllowLinks()) {
-			throw new \Exception('Link sharing is not allowed');
-		}
-
-		// Link shares by definition can't have share permissions
-		if ($share->getPermissions() & \OCP\Constants::PERMISSION_SHARE) {
-			throw new \InvalidArgumentException('Link shares can’t have reshare permissions');
-		}
-
-		// Check if public upload is allowed
-		if (!$this->shareApiLinkAllowPublicUpload() &&
-			($share->getPermissions() & (\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE))) {
-			throw new \InvalidArgumentException('Public upload is not allowed');
-		}
-	}
-
-	/**
-	 * To make sure we don't get invisible link shares we set the parent
-	 * of a link if it is a reshare. This is a quick word around
-	 * until we can properly display multiple link shares in the UI
-	 *
-	 * See: https://github.com/owncloud/core/issues/22295
-	 *
-	 * FIXME: Remove once multiple link shares can be properly displayed
-	 *
-	 * @param \OCP\Share\IShare $share
-	 */
-	protected function setLinkParent(\OCP\Share\IShare $share) {
-
-		// No sense in checking if the method is not there.
-		if (method_exists($share, 'setParent')) {
-			$storage = $share->getNode()->getStorage();
-			if ($storage->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
-				/** @var \OCA\Files_Sharing\SharedStorage $storage */
-				$share->setParent($storage->getShareId());
-			}
-		}
-	}
-
-	/**
-	 * @param File|Folder $path
-	 */
-	protected function pathCreateChecks($path) {
-		// Make sure that we do not share a path that contains a shared mountpoint
-		if ($path instanceof \OCP\Files\Folder) {
-			$mounts = $this->mountManager->findIn($path->getPath());
-			foreach($mounts as $mount) {
-				if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
-					throw new \InvalidArgumentException('Path contains files shared with you');
-				}
-			}
-		}
-	}
-
-	/**
-	 * Check if the user that is sharing can actually share
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @throws \Exception
-	 */
-	protected function canShare(\OCP\Share\IShare $share) {
-		if (!$this->shareApiEnabled()) {
-			throw new \Exception('Sharing is disabled');
-		}
-
-		if ($this->sharingDisabledForUser($share->getSharedBy())) {
-			throw new \Exception('Sharing is disabled for you');
-		}
-	}
-
-	/**
-	 * Share a path
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @return Share The share object
-	 * @throws \Exception
-	 *
-	 * TODO: handle link share permissions or check them
-	 */
-	public function createShare(\OCP\Share\IShare $share) {
-		$this->canShare($share);
-
-		$this->generalCreateChecks($share);
-
-		// Verify if there are any issues with the path
-		$this->pathCreateChecks($share->getNode());
-
-		/*
+        $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
+        $existingShares = $provider->getSharesByPath($share->getNode());
+        foreach($existingShares as $existingShare) {
+            try {
+                if ($existingShare->getFullId() === $share->getFullId()) {
+                    continue;
+                }
+            } catch (\UnexpectedValueException $e) {
+                //It is a new share so just continue
+            }
+
+            if ($existingShare->getSharedWith() === $share->getSharedWith()) {
+                throw new \Exception('Path is already shared with this group');
+            }
+        }
+    }
+
+    /**
+     * Check for pre share requirements for link shares
+     *
+     * @param \OCP\Share\IShare $share
+     * @throws \Exception
+     */
+    protected function linkCreateChecks(\OCP\Share\IShare $share) {
+        // Are link shares allowed?
+        if (!$this->shareApiAllowLinks()) {
+            throw new \Exception('Link sharing is not allowed');
+        }
+
+        // Link shares by definition can't have share permissions
+        if ($share->getPermissions() & \OCP\Constants::PERMISSION_SHARE) {
+            throw new \InvalidArgumentException('Link shares can’t have reshare permissions');
+        }
+
+        // Check if public upload is allowed
+        if (!$this->shareApiLinkAllowPublicUpload() &&
+            ($share->getPermissions() & (\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE))) {
+            throw new \InvalidArgumentException('Public upload is not allowed');
+        }
+    }
+
+    /**
+     * To make sure we don't get invisible link shares we set the parent
+     * of a link if it is a reshare. This is a quick word around
+     * until we can properly display multiple link shares in the UI
+     *
+     * See: https://github.com/owncloud/core/issues/22295
+     *
+     * FIXME: Remove once multiple link shares can be properly displayed
+     *
+     * @param \OCP\Share\IShare $share
+     */
+    protected function setLinkParent(\OCP\Share\IShare $share) {
+
+        // No sense in checking if the method is not there.
+        if (method_exists($share, 'setParent')) {
+            $storage = $share->getNode()->getStorage();
+            if ($storage->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
+                /** @var \OCA\Files_Sharing\SharedStorage $storage */
+                $share->setParent($storage->getShareId());
+            }
+        }
+    }
+
+    /**
+     * @param File|Folder $path
+     */
+    protected function pathCreateChecks($path) {
+        // Make sure that we do not share a path that contains a shared mountpoint
+        if ($path instanceof \OCP\Files\Folder) {
+            $mounts = $this->mountManager->findIn($path->getPath());
+            foreach($mounts as $mount) {
+                if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
+                    throw new \InvalidArgumentException('Path contains files shared with you');
+                }
+            }
+        }
+    }
+
+    /**
+     * Check if the user that is sharing can actually share
+     *
+     * @param \OCP\Share\IShare $share
+     * @throws \Exception
+     */
+    protected function canShare(\OCP\Share\IShare $share) {
+        if (!$this->shareApiEnabled()) {
+            throw new \Exception('Sharing is disabled');
+        }
+
+        if ($this->sharingDisabledForUser($share->getSharedBy())) {
+            throw new \Exception('Sharing is disabled for you');
+        }
+    }
+
+    /**
+     * Share a path
+     *
+     * @param \OCP\Share\IShare $share
+     * @return Share The share object
+     * @throws \Exception
+     *
+     * TODO: handle link share permissions or check them
+     */
+    public function createShare(\OCP\Share\IShare $share) {
+        $this->canShare($share);
+
+        $this->generalCreateChecks($share);
+
+        // Verify if there are any issues with the path
+        $this->pathCreateChecks($share->getNode());
+
+        /*
 		 * On creation of a share the owner is always the owner of the path
 		 * Except for mounted federated shares.
 		 */
-		$storage = $share->getNode()->getStorage();
-		if ($storage->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
-			$parent = $share->getNode()->getParent();
-			while($parent->getStorage()->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
-				$parent = $parent->getParent();
-			}
-			$share->setShareOwner($parent->getOwner()->getUID());
-		} else {
-			$share->setShareOwner($share->getNode()->getOwner()->getUID());
-		}
-
-		//Verify share type
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
-			$this->userCreateChecks($share);
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
-			$this->groupCreateChecks($share);
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
-			$this->linkCreateChecks($share);
-			$this->setLinkParent($share);
-
-			/*
+        $storage = $share->getNode()->getStorage();
+        if ($storage->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
+            $parent = $share->getNode()->getParent();
+            while($parent->getStorage()->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
+                $parent = $parent->getParent();
+            }
+            $share->setShareOwner($parent->getOwner()->getUID());
+        } else {
+            $share->setShareOwner($share->getNode()->getOwner()->getUID());
+        }
+
+        //Verify share type
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
+            $this->userCreateChecks($share);
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
+            $this->groupCreateChecks($share);
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
+            $this->linkCreateChecks($share);
+            $this->setLinkParent($share);
+
+            /*
 			 * For now ignore a set token.
 			 */
-			$share->setToken(
-				$this->secureRandom->generate(
-					\OC\Share\Constants::TOKEN_LENGTH,
-					\OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
-				)
-			);
-
-			//Verify the expiration date
-			$this->validateExpirationDate($share);
-
-			//Verify the password
-			$this->verifyPassword($share->getPassword());
-
-			// If a password is set. Hash it!
-			if ($share->getPassword() !== null) {
-				$share->setPassword($this->hasher->hash($share->getPassword()));
-			}
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
-			$share->setToken(
-				$this->secureRandom->generate(
-					\OC\Share\Constants::TOKEN_LENGTH,
-					\OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
-				)
-			);
-		}
-
-		// Cannot share with the owner
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
-			$share->getSharedWith() === $share->getShareOwner()) {
-			throw new \InvalidArgumentException('Can’t share with the share owner');
-		}
-
-		// Generate the target
-		$target = $this->config->getSystemValue('share_folder', '/') .'/'. $share->getNode()->getName();
-		$target = \OC\Files\Filesystem::normalizePath($target);
-		$share->setTarget($target);
-
-		// Pre share event
-		$event = new GenericEvent($share);
-		$a = $this->eventDispatcher->dispatch('OCP\Share::preShare', $event);
-		if ($event->isPropagationStopped() && $event->hasArgument('error')) {
-			throw new \Exception($event->getArgument('error'));
-		}
-
-		$oldShare = $share;
-		$provider = $this->factory->getProviderForType($share->getShareType());
-		$share = $provider->create($share);
-		//reuse the node we already have
-		$share->setNode($oldShare->getNode());
-
-		// Post share event
-		$event = new GenericEvent($share);
-		$this->eventDispatcher->dispatch('OCP\Share::postShare', $event);
-
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
-			$mailSend = $share->getMailSend();
-			if($mailSend === true) {
-				$user = $this->userManager->get($share->getSharedWith());
-				if ($user !== null) {
-					$emailAddress = $user->getEMailAddress();
-					if ($emailAddress !== null && $emailAddress !== '') {
-						$userLang = $this->config->getUserValue($share->getSharedWith(), 'core', 'lang', null);
-						$l = $this->l10nFactory->get('lib', $userLang);
-						$this->sendMailNotification(
-							$l,
-							$share->getNode()->getName(),
-							$this->urlGenerator->linkToRouteAbsolute('files.viewcontroller.showFile', ['fileid' => $share->getNode()->getId()]),
-							$share->getSharedBy(),
-							$emailAddress,
-							$share->getExpirationDate()
-						);
-						$this->logger->debug('Send share notification to ' . $emailAddress . ' for share with ID ' . $share->getId(), ['app' => 'share']);
-					} else {
-						$this->logger->debug('Share notification not send to ' . $share->getSharedWith() . ' because email address is not set.', ['app' => 'share']);
-					}
-				} else {
-					$this->logger->debug('Share notification not send to ' . $share->getSharedWith() . ' because user could not be found.', ['app' => 'share']);
-				}
-			} else {
-				$this->logger->debug('Share notification not send because mailsend is false.', ['app' => 'share']);
-			}
-		}
-
-		return $share;
-	}
-
-	/**
-	 * @param IL10N $l Language of the recipient
-	 * @param string $filename file/folder name
-	 * @param string $link link to the file/folder
-	 * @param string $initiator user ID of share sender
-	 * @param string $shareWith email address of share receiver
-	 * @param \DateTime|null $expiration
-	 * @throws \Exception If mail couldn't be sent
-	 */
-	protected function sendMailNotification(IL10N $l,
-											$filename,
-											$link,
-											$initiator,
-											$shareWith,
-											\DateTime $expiration = null) {
-		$initiatorUser = $this->userManager->get($initiator);
-		$initiatorDisplayName = ($initiatorUser instanceof IUser) ? $initiatorUser->getDisplayName() : $initiator;
-
-		$message = $this->mailer->createMessage();
-
-		$emailTemplate = $this->mailer->createEMailTemplate('files_sharing.RecipientNotification', [
-			'filename' => $filename,
-			'link' => $link,
-			'initiator' => $initiatorDisplayName,
-			'expiration' => $expiration,
-			'shareWith' => $shareWith,
-		]);
-
-		$emailTemplate->setSubject($l->t('%1$s shared »%2$s« with you', array($initiatorDisplayName, $filename)));
-		$emailTemplate->addHeader();
-		$emailTemplate->addHeading($l->t('%1$s shared »%2$s« with you', [$initiatorDisplayName, $filename]), false);
-		$text = $l->t('%1$s shared »%2$s« with you.', [$initiatorDisplayName, $filename]);
-
-		$emailTemplate->addBodyText(
-			htmlspecialchars($text . ' ' . $l->t('Click the button below to open it.')),
-			$text
-		);
-		$emailTemplate->addBodyButton(
-			$l->t('Open »%s«', [$filename]),
-			$link
-		);
-
-		$message->setTo([$shareWith]);
-
-		// The "From" contains the sharers name
-		$instanceName = $this->defaults->getName();
-		$senderName = $l->t(
-			'%1$s via %2$s',
-			[
-				$initiatorDisplayName,
-				$instanceName
-			]
-		);
-		$message->setFrom([\OCP\Util::getDefaultEmailAddress($instanceName) => $senderName]);
-
-		// The "Reply-To" is set to the sharer if an mail address is configured
-		// also the default footer contains a "Do not reply" which needs to be adjusted.
-		$initiatorEmail = $initiatorUser->getEMailAddress();
-		if($initiatorEmail !== null) {
-			$message->setReplyTo([$initiatorEmail => $initiatorDisplayName]);
-			$emailTemplate->addFooter($instanceName . ($this->defaults->getSlogan() !== '' ? ' - ' . $this->defaults->getSlogan() : ''));
-		} else {
-			$emailTemplate->addFooter();
-		}
-
-		$message->useTemplate($emailTemplate);
-		$this->mailer->send($message);
-	}
-
-	/**
-	 * Update a share
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @return \OCP\Share\IShare The share object
-	 * @throws \InvalidArgumentException
-	 */
-	public function updateShare(\OCP\Share\IShare $share) {
-		$expirationDateUpdated = false;
-
-		$this->canShare($share);
-
-		try {
-			$originalShare = $this->getShareById($share->getFullId());
-		} catch (\UnexpectedValueException $e) {
-			throw new \InvalidArgumentException('Share does not have a full id');
-		}
-
-		// We can't change the share type!
-		if ($share->getShareType() !== $originalShare->getShareType()) {
-			throw new \InvalidArgumentException('Can’t change share type');
-		}
-
-		// We can only change the recipient on user shares
-		if ($share->getSharedWith() !== $originalShare->getSharedWith() &&
-		    $share->getShareType() !== \OCP\Share::SHARE_TYPE_USER) {
-			throw new \InvalidArgumentException('Can only update recipient on user shares');
-		}
-
-		// Cannot share with the owner
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
-			$share->getSharedWith() === $share->getShareOwner()) {
-			throw new \InvalidArgumentException('Can’t share with the share owner');
-		}
-
-		$this->generalCreateChecks($share);
-
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
-			$this->userCreateChecks($share);
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
-			$this->groupCreateChecks($share);
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
-			$this->linkCreateChecks($share);
-
-			$this->updateSharePasswordIfNeeded($share, $originalShare);
-
-			if ($share->getExpirationDate() != $originalShare->getExpirationDate()) {
-				//Verify the expiration date
-				$this->validateExpirationDate($share);
-				$expirationDateUpdated = true;
-			}
-		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
-			// The new password is not set again if it is the same as the old
-			// one, unless when switching from sending by Talk to sending by
-			// mail.
-			$plainTextPassword = $share->getPassword();
-			if (!empty($plainTextPassword) && !$this->updateSharePasswordIfNeeded($share, $originalShare) &&
-					!($originalShare->getSendPasswordByTalk() && !$share->getSendPasswordByTalk())) {
-				$plainTextPassword = null;
-			}
-			if (empty($plainTextPassword) && !$originalShare->getSendPasswordByTalk() && $share->getSendPasswordByTalk()) {
-				// If the same password was already sent by mail the recipient
-				// would already have access to the share without having to call
-				// the sharer to verify her identity
-				throw new \InvalidArgumentException('Can’t enable sending the password by Talk without setting a new password');
-			}
-		}
-
-		$this->pathCreateChecks($share->getNode());
-
-		// Now update the share!
-		$provider = $this->factory->getProviderForType($share->getShareType());
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
-			$share = $provider->update($share, $plainTextPassword);
-		} else {
-			$share = $provider->update($share);
-		}
-
-		if ($expirationDateUpdated === true) {
-			\OC_Hook::emit(Share::class, 'post_set_expiration_date', [
-				'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
-				'itemSource' => $share->getNode()->getId(),
-				'date' => $share->getExpirationDate(),
-				'uidOwner' => $share->getSharedBy(),
-			]);
-		}
-
-		if ($share->getPassword() !== $originalShare->getPassword()) {
-			\OC_Hook::emit(Share::class, 'post_update_password', [
-				'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
-				'itemSource' => $share->getNode()->getId(),
-				'uidOwner' => $share->getSharedBy(),
-				'token' => $share->getToken(),
-				'disabled' => is_null($share->getPassword()),
-			]);
-		}
-
-		if ($share->getPermissions() !== $originalShare->getPermissions()) {
-			if ($this->userManager->userExists($share->getShareOwner())) {
-				$userFolder = $this->rootFolder->getUserFolder($share->getShareOwner());
-			} else {
-				$userFolder = $this->rootFolder->getUserFolder($share->getSharedBy());
-			}
-			\OC_Hook::emit(Share::class, 'post_update_permissions', array(
-				'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
-				'itemSource' => $share->getNode()->getId(),
-				'shareType' => $share->getShareType(),
-				'shareWith' => $share->getSharedWith(),
-				'uidOwner' => $share->getSharedBy(),
-				'permissions' => $share->getPermissions(),
-				'path' => $userFolder->getRelativePath($share->getNode()->getPath()),
-			));
-		}
-
-		return $share;
-	}
-
-	/**
-	 * Updates the password of the given share if it is not the same as the
-	 * password of the original share.
-	 *
-	 * @param \OCP\Share\IShare $share the share to update its password.
-	 * @param \OCP\Share\IShare $originalShare the original share to compare its
-	 *        password with.
-	 * @return boolean whether the password was updated or not.
-	 */
-	private function updateSharePasswordIfNeeded(\OCP\Share\IShare $share, \OCP\Share\IShare $originalShare) {
-		// Password updated.
-		if ($share->getPassword() !== $originalShare->getPassword()) {
-			//Verify the password
-			$this->verifyPassword($share->getPassword());
-
-			// If a password is set. Hash it!
-			if ($share->getPassword() !== null) {
-				$share->setPassword($this->hasher->hash($share->getPassword()));
-
-				return true;
-			}
-		}
-
-		return false;
-	}
-
-	/**
-	 * Delete all the children of this share
-	 * FIXME: remove once https://github.com/owncloud/core/pull/21660 is in
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @return \OCP\Share\IShare[] List of deleted shares
-	 */
-	protected function deleteChildren(\OCP\Share\IShare $share) {
-		$deletedShares = [];
-
-		$provider = $this->factory->getProviderForType($share->getShareType());
-
-		foreach ($provider->getChildren($share) as $child) {
-			$deletedChildren = $this->deleteChildren($child);
-			$deletedShares = array_merge($deletedShares, $deletedChildren);
-
-			$provider->delete($child);
-			$deletedShares[] = $child;
-		}
-
-		return $deletedShares;
-	}
-
-	/**
-	 * Delete a share
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @throws ShareNotFound
-	 * @throws \InvalidArgumentException
-	 */
-	public function deleteShare(\OCP\Share\IShare $share) {
-
-		try {
-			$share->getFullId();
-		} catch (\UnexpectedValueException $e) {
-			throw new \InvalidArgumentException('Share does not have a full id');
-		}
-
-		$event = new GenericEvent($share);
-		$this->eventDispatcher->dispatch('OCP\Share::preUnshare', $event);
-
-		// Get all children and delete them as well
-		$deletedShares = $this->deleteChildren($share);
-
-		// Do the actual delete
-		$provider = $this->factory->getProviderForType($share->getShareType());
-		$provider->delete($share);
-
-		// All the deleted shares caused by this delete
-		$deletedShares[] = $share;
-
-		// Emit post hook
-		$event->setArgument('deletedShares', $deletedShares);
-		$this->eventDispatcher->dispatch('OCP\Share::postUnshare', $event);
-	}
-
-
-	/**
-	 * Unshare a file as the recipient.
-	 * This can be different from a regular delete for example when one of
-	 * the users in a groups deletes that share. But the provider should
-	 * handle this.
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @param string $recipientId
-	 */
-	public function deleteFromSelf(\OCP\Share\IShare $share, $recipientId) {
-		list($providerId, ) = $this->splitFullId($share->getFullId());
-		$provider = $this->factory->getProvider($providerId);
-
-		$provider->deleteFromSelf($share, $recipientId);
-		$event = new GenericEvent($share);
-		$this->eventDispatcher->dispatch('OCP\Share::postUnshareFromSelf', $event);
-	}
-
-	public function restoreShare(IShare $share, string $recipientId): IShare {
-		list($providerId, ) = $this->splitFullId($share->getFullId());
-		$provider = $this->factory->getProvider($providerId);
-
-		return $provider->restore($share, $recipientId);
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function moveShare(\OCP\Share\IShare $share, $recipientId) {
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
-			throw new \InvalidArgumentException('Can’t change target of link share');
-		}
-
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER && $share->getSharedWith() !== $recipientId) {
-			throw new \InvalidArgumentException('Invalid recipient');
-		}
-
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
-			$sharedWith = $this->groupManager->get($share->getSharedWith());
-			if (is_null($sharedWith)) {
-				throw new \InvalidArgumentException('Group "' . $share->getSharedWith() . '" does not exist');
-			}
-			$recipient = $this->userManager->get($recipientId);
-			if (!$sharedWith->inGroup($recipient)) {
-				throw new \InvalidArgumentException('Invalid recipient');
-			}
-		}
-
-		list($providerId, ) = $this->splitFullId($share->getFullId());
-		$provider = $this->factory->getProvider($providerId);
-
-		$provider->move($share, $recipientId);
-	}
-
-	public function getSharesInFolder($userId, Folder $node, $reshares = false) {
-		$providers = $this->factory->getAllProviders();
-
-		return array_reduce($providers, function($shares, IShareProvider $provider) use ($userId, $node, $reshares) {
-			$newShares = $provider->getSharesInFolder($userId, $node, $reshares);
-			foreach ($newShares as $fid => $data) {
-				if (!isset($shares[$fid])) {
-					$shares[$fid] = [];
-				}
-
-				$shares[$fid] = array_merge($shares[$fid], $data);
-			}
-			return $shares;
-		}, []);
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getSharesBy($userId, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0) {
-		if ($path !== null &&
-				!($path instanceof \OCP\Files\File) &&
-				!($path instanceof \OCP\Files\Folder)) {
-			throw new \InvalidArgumentException('invalid path');
-		}
-
-		try {
-			$provider = $this->factory->getProviderForType($shareType);
-		} catch (ProviderException $e) {
-			return [];
-		}
-
-		$shares = $provider->getSharesBy($userId, $shareType, $path, $reshares, $limit, $offset);
-
-		/*
+            $share->setToken(
+                $this->secureRandom->generate(
+                    \OC\Share\Constants::TOKEN_LENGTH,
+                    \OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
+                )
+            );
+
+            //Verify the expiration date
+            $this->validateExpirationDate($share);
+
+            //Verify the password
+            $this->verifyPassword($share->getPassword());
+
+            // If a password is set. Hash it!
+            if ($share->getPassword() !== null) {
+                $share->setPassword($this->hasher->hash($share->getPassword()));
+            }
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
+            $share->setToken(
+                $this->secureRandom->generate(
+                    \OC\Share\Constants::TOKEN_LENGTH,
+                    \OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
+                )
+            );
+        }
+
+        // Cannot share with the owner
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
+            $share->getSharedWith() === $share->getShareOwner()) {
+            throw new \InvalidArgumentException('Can’t share with the share owner');
+        }
+
+        // Generate the target
+        $target = $this->config->getSystemValue('share_folder', '/') .'/'. $share->getNode()->getName();
+        $target = \OC\Files\Filesystem::normalizePath($target);
+        $share->setTarget($target);
+
+        // Pre share event
+        $event = new GenericEvent($share);
+        $a = $this->eventDispatcher->dispatch('OCP\Share::preShare', $event);
+        if ($event->isPropagationStopped() && $event->hasArgument('error')) {
+            throw new \Exception($event->getArgument('error'));
+        }
+
+        $oldShare = $share;
+        $provider = $this->factory->getProviderForType($share->getShareType());
+        $share = $provider->create($share);
+        //reuse the node we already have
+        $share->setNode($oldShare->getNode());
+
+        // Post share event
+        $event = new GenericEvent($share);
+        $this->eventDispatcher->dispatch('OCP\Share::postShare', $event);
+
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
+            $mailSend = $share->getMailSend();
+            if($mailSend === true) {
+                $user = $this->userManager->get($share->getSharedWith());
+                if ($user !== null) {
+                    $emailAddress = $user->getEMailAddress();
+                    if ($emailAddress !== null && $emailAddress !== '') {
+                        $userLang = $this->config->getUserValue($share->getSharedWith(), 'core', 'lang', null);
+                        $l = $this->l10nFactory->get('lib', $userLang);
+                        $this->sendMailNotification(
+                            $l,
+                            $share->getNode()->getName(),
+                            $this->urlGenerator->linkToRouteAbsolute('files.viewcontroller.showFile', ['fileid' => $share->getNode()->getId()]),
+                            $share->getSharedBy(),
+                            $emailAddress,
+                            $share->getExpirationDate()
+                        );
+                        $this->logger->debug('Send share notification to ' . $emailAddress . ' for share with ID ' . $share->getId(), ['app' => 'share']);
+                    } else {
+                        $this->logger->debug('Share notification not send to ' . $share->getSharedWith() . ' because email address is not set.', ['app' => 'share']);
+                    }
+                } else {
+                    $this->logger->debug('Share notification not send to ' . $share->getSharedWith() . ' because user could not be found.', ['app' => 'share']);
+                }
+            } else {
+                $this->logger->debug('Share notification not send because mailsend is false.', ['app' => 'share']);
+            }
+        }
+
+        return $share;
+    }
+
+    /**
+     * @param IL10N $l Language of the recipient
+     * @param string $filename file/folder name
+     * @param string $link link to the file/folder
+     * @param string $initiator user ID of share sender
+     * @param string $shareWith email address of share receiver
+     * @param \DateTime|null $expiration
+     * @throws \Exception If mail couldn't be sent
+     */
+    protected function sendMailNotification(IL10N $l,
+                                            $filename,
+                                            $link,
+                                            $initiator,
+                                            $shareWith,
+                                            \DateTime $expiration = null) {
+        $initiatorUser = $this->userManager->get($initiator);
+        $initiatorDisplayName = ($initiatorUser instanceof IUser) ? $initiatorUser->getDisplayName() : $initiator;
+
+        $message = $this->mailer->createMessage();
+
+        $emailTemplate = $this->mailer->createEMailTemplate('files_sharing.RecipientNotification', [
+            'filename' => $filename,
+            'link' => $link,
+            'initiator' => $initiatorDisplayName,
+            'expiration' => $expiration,
+            'shareWith' => $shareWith,
+        ]);
+
+        $emailTemplate->setSubject($l->t('%1$s shared »%2$s« with you', array($initiatorDisplayName, $filename)));
+        $emailTemplate->addHeader();
+        $emailTemplate->addHeading($l->t('%1$s shared »%2$s« with you', [$initiatorDisplayName, $filename]), false);
+        $text = $l->t('%1$s shared »%2$s« with you.', [$initiatorDisplayName, $filename]);
+
+        $emailTemplate->addBodyText(
+            htmlspecialchars($text . ' ' . $l->t('Click the button below to open it.')),
+            $text
+        );
+        $emailTemplate->addBodyButton(
+            $l->t('Open »%s«', [$filename]),
+            $link
+        );
+
+        $message->setTo([$shareWith]);
+
+        // The "From" contains the sharers name
+        $instanceName = $this->defaults->getName();
+        $senderName = $l->t(
+            '%1$s via %2$s',
+            [
+                $initiatorDisplayName,
+                $instanceName
+            ]
+        );
+        $message->setFrom([\OCP\Util::getDefaultEmailAddress($instanceName) => $senderName]);
+
+        // The "Reply-To" is set to the sharer if an mail address is configured
+        // also the default footer contains a "Do not reply" which needs to be adjusted.
+        $initiatorEmail = $initiatorUser->getEMailAddress();
+        if($initiatorEmail !== null) {
+            $message->setReplyTo([$initiatorEmail => $initiatorDisplayName]);
+            $emailTemplate->addFooter($instanceName . ($this->defaults->getSlogan() !== '' ? ' - ' . $this->defaults->getSlogan() : ''));
+        } else {
+            $emailTemplate->addFooter();
+        }
+
+        $message->useTemplate($emailTemplate);
+        $this->mailer->send($message);
+    }
+
+    /**
+     * Update a share
+     *
+     * @param \OCP\Share\IShare $share
+     * @return \OCP\Share\IShare The share object
+     * @throws \InvalidArgumentException
+     */
+    public function updateShare(\OCP\Share\IShare $share) {
+        $expirationDateUpdated = false;
+
+        $this->canShare($share);
+
+        try {
+            $originalShare = $this->getShareById($share->getFullId());
+        } catch (\UnexpectedValueException $e) {
+            throw new \InvalidArgumentException('Share does not have a full id');
+        }
+
+        // We can't change the share type!
+        if ($share->getShareType() !== $originalShare->getShareType()) {
+            throw new \InvalidArgumentException('Can’t change share type');
+        }
+
+        // We can only change the recipient on user shares
+        if ($share->getSharedWith() !== $originalShare->getSharedWith() &&
+            $share->getShareType() !== \OCP\Share::SHARE_TYPE_USER) {
+            throw new \InvalidArgumentException('Can only update recipient on user shares');
+        }
+
+        // Cannot share with the owner
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
+            $share->getSharedWith() === $share->getShareOwner()) {
+            throw new \InvalidArgumentException('Can’t share with the share owner');
+        }
+
+        $this->generalCreateChecks($share);
+
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
+            $this->userCreateChecks($share);
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
+            $this->groupCreateChecks($share);
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
+            $this->linkCreateChecks($share);
+
+            $this->updateSharePasswordIfNeeded($share, $originalShare);
+
+            if ($share->getExpirationDate() != $originalShare->getExpirationDate()) {
+                //Verify the expiration date
+                $this->validateExpirationDate($share);
+                $expirationDateUpdated = true;
+            }
+        } else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
+            // The new password is not set again if it is the same as the old
+            // one, unless when switching from sending by Talk to sending by
+            // mail.
+            $plainTextPassword = $share->getPassword();
+            if (!empty($plainTextPassword) && !$this->updateSharePasswordIfNeeded($share, $originalShare) &&
+                    !($originalShare->getSendPasswordByTalk() && !$share->getSendPasswordByTalk())) {
+                $plainTextPassword = null;
+            }
+            if (empty($plainTextPassword) && !$originalShare->getSendPasswordByTalk() && $share->getSendPasswordByTalk()) {
+                // If the same password was already sent by mail the recipient
+                // would already have access to the share without having to call
+                // the sharer to verify her identity
+                throw new \InvalidArgumentException('Can’t enable sending the password by Talk without setting a new password');
+            }
+        }
+
+        $this->pathCreateChecks($share->getNode());
+
+        // Now update the share!
+        $provider = $this->factory->getProviderForType($share->getShareType());
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
+            $share = $provider->update($share, $plainTextPassword);
+        } else {
+            $share = $provider->update($share);
+        }
+
+        if ($expirationDateUpdated === true) {
+            \OC_Hook::emit(Share::class, 'post_set_expiration_date', [
+                'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
+                'itemSource' => $share->getNode()->getId(),
+                'date' => $share->getExpirationDate(),
+                'uidOwner' => $share->getSharedBy(),
+            ]);
+        }
+
+        if ($share->getPassword() !== $originalShare->getPassword()) {
+            \OC_Hook::emit(Share::class, 'post_update_password', [
+                'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
+                'itemSource' => $share->getNode()->getId(),
+                'uidOwner' => $share->getSharedBy(),
+                'token' => $share->getToken(),
+                'disabled' => is_null($share->getPassword()),
+            ]);
+        }
+
+        if ($share->getPermissions() !== $originalShare->getPermissions()) {
+            if ($this->userManager->userExists($share->getShareOwner())) {
+                $userFolder = $this->rootFolder->getUserFolder($share->getShareOwner());
+            } else {
+                $userFolder = $this->rootFolder->getUserFolder($share->getSharedBy());
+            }
+            \OC_Hook::emit(Share::class, 'post_update_permissions', array(
+                'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
+                'itemSource' => $share->getNode()->getId(),
+                'shareType' => $share->getShareType(),
+                'shareWith' => $share->getSharedWith(),
+                'uidOwner' => $share->getSharedBy(),
+                'permissions' => $share->getPermissions(),
+                'path' => $userFolder->getRelativePath($share->getNode()->getPath()),
+            ));
+        }
+
+        return $share;
+    }
+
+    /**
+     * Updates the password of the given share if it is not the same as the
+     * password of the original share.
+     *
+     * @param \OCP\Share\IShare $share the share to update its password.
+     * @param \OCP\Share\IShare $originalShare the original share to compare its
+     *        password with.
+     * @return boolean whether the password was updated or not.
+     */
+    private function updateSharePasswordIfNeeded(\OCP\Share\IShare $share, \OCP\Share\IShare $originalShare) {
+        // Password updated.
+        if ($share->getPassword() !== $originalShare->getPassword()) {
+            //Verify the password
+            $this->verifyPassword($share->getPassword());
+
+            // If a password is set. Hash it!
+            if ($share->getPassword() !== null) {
+                $share->setPassword($this->hasher->hash($share->getPassword()));
+
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Delete all the children of this share
+     * FIXME: remove once https://github.com/owncloud/core/pull/21660 is in
+     *
+     * @param \OCP\Share\IShare $share
+     * @return \OCP\Share\IShare[] List of deleted shares
+     */
+    protected function deleteChildren(\OCP\Share\IShare $share) {
+        $deletedShares = [];
+
+        $provider = $this->factory->getProviderForType($share->getShareType());
+
+        foreach ($provider->getChildren($share) as $child) {
+            $deletedChildren = $this->deleteChildren($child);
+            $deletedShares = array_merge($deletedShares, $deletedChildren);
+
+            $provider->delete($child);
+            $deletedShares[] = $child;
+        }
+
+        return $deletedShares;
+    }
+
+    /**
+     * Delete a share
+     *
+     * @param \OCP\Share\IShare $share
+     * @throws ShareNotFound
+     * @throws \InvalidArgumentException
+     */
+    public function deleteShare(\OCP\Share\IShare $share) {
+
+        try {
+            $share->getFullId();
+        } catch (\UnexpectedValueException $e) {
+            throw new \InvalidArgumentException('Share does not have a full id');
+        }
+
+        $event = new GenericEvent($share);
+        $this->eventDispatcher->dispatch('OCP\Share::preUnshare', $event);
+
+        // Get all children and delete them as well
+        $deletedShares = $this->deleteChildren($share);
+
+        // Do the actual delete
+        $provider = $this->factory->getProviderForType($share->getShareType());
+        $provider->delete($share);
+
+        // All the deleted shares caused by this delete
+        $deletedShares[] = $share;
+
+        // Emit post hook
+        $event->setArgument('deletedShares', $deletedShares);
+        $this->eventDispatcher->dispatch('OCP\Share::postUnshare', $event);
+    }
+
+
+    /**
+     * Unshare a file as the recipient.
+     * This can be different from a regular delete for example when one of
+     * the users in a groups deletes that share. But the provider should
+     * handle this.
+     *
+     * @param \OCP\Share\IShare $share
+     * @param string $recipientId
+     */
+    public function deleteFromSelf(\OCP\Share\IShare $share, $recipientId) {
+        list($providerId, ) = $this->splitFullId($share->getFullId());
+        $provider = $this->factory->getProvider($providerId);
+
+        $provider->deleteFromSelf($share, $recipientId);
+        $event = new GenericEvent($share);
+        $this->eventDispatcher->dispatch('OCP\Share::postUnshareFromSelf', $event);
+    }
+
+    public function restoreShare(IShare $share, string $recipientId): IShare {
+        list($providerId, ) = $this->splitFullId($share->getFullId());
+        $provider = $this->factory->getProvider($providerId);
+
+        return $provider->restore($share, $recipientId);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function moveShare(\OCP\Share\IShare $share, $recipientId) {
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
+            throw new \InvalidArgumentException('Can’t change target of link share');
+        }
+
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER && $share->getSharedWith() !== $recipientId) {
+            throw new \InvalidArgumentException('Invalid recipient');
+        }
+
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
+            $sharedWith = $this->groupManager->get($share->getSharedWith());
+            if (is_null($sharedWith)) {
+                throw new \InvalidArgumentException('Group "' . $share->getSharedWith() . '" does not exist');
+            }
+            $recipient = $this->userManager->get($recipientId);
+            if (!$sharedWith->inGroup($recipient)) {
+                throw new \InvalidArgumentException('Invalid recipient');
+            }
+        }
+
+        list($providerId, ) = $this->splitFullId($share->getFullId());
+        $provider = $this->factory->getProvider($providerId);
+
+        $provider->move($share, $recipientId);
+    }
+
+    public function getSharesInFolder($userId, Folder $node, $reshares = false) {
+        $providers = $this->factory->getAllProviders();
+
+        return array_reduce($providers, function($shares, IShareProvider $provider) use ($userId, $node, $reshares) {
+            $newShares = $provider->getSharesInFolder($userId, $node, $reshares);
+            foreach ($newShares as $fid => $data) {
+                if (!isset($shares[$fid])) {
+                    $shares[$fid] = [];
+                }
+
+                $shares[$fid] = array_merge($shares[$fid], $data);
+            }
+            return $shares;
+        }, []);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getSharesBy($userId, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0) {
+        if ($path !== null &&
+                !($path instanceof \OCP\Files\File) &&
+                !($path instanceof \OCP\Files\Folder)) {
+            throw new \InvalidArgumentException('invalid path');
+        }
+
+        try {
+            $provider = $this->factory->getProviderForType($shareType);
+        } catch (ProviderException $e) {
+            return [];
+        }
+
+        $shares = $provider->getSharesBy($userId, $shareType, $path, $reshares, $limit, $offset);
+
+        /*
 		 * Work around so we don't return expired shares but still follow
 		 * proper pagination.
 		 */
 
-		$shares2 = [];
-
-		while(true) {
-			$added = 0;
-			foreach ($shares as $share) {
-
-				try {
-					$this->checkExpireDate($share);
-				} catch (ShareNotFound $e) {
-					//Ignore since this basically means the share is deleted
-					continue;
-				}
-
-				$added++;
-				$shares2[] = $share;
-
-				if (count($shares2) === $limit) {
-					break;
-				}
-			}
-
-			// If we did not fetch more shares than the limit then there are no more shares
-			if (count($shares) < $limit) {
-				break;
-			}
-
-			if (count($shares2) === $limit) {
-				break;
-			}
-
-			// If there was no limit on the select we are done
-			if ($limit === -1) {
-				break;
-			}
-
-			$offset += $added;
-
-			// Fetch again $limit shares
-			$shares = $provider->getSharesBy($userId, $shareType, $path, $reshares, $limit, $offset);
-
-			// No more shares means we are done
-			if (empty($shares)) {
-				break;
-			}
-		}
-
-		$shares = $shares2;
-
-		return $shares;
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getSharedWith($userId, $shareType, $node = null, $limit = 50, $offset = 0) {
-		try {
-			$provider = $this->factory->getProviderForType($shareType);
-		} catch (ProviderException $e) {
-			return [];
-		}
-
-		$shares = $provider->getSharedWith($userId, $shareType, $node, $limit, $offset);
-
-		// remove all shares which are already expired
-		foreach ($shares as $key => $share) {
-			try {
-				$this->checkExpireDate($share);
-			} catch (ShareNotFound $e) {
-				unset($shares[$key]);
-			}
-		}
-
-		return $shares;
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getDeletedSharedWith($userId, $shareType, $node = null, $limit = 50, $offset = 0) {
-		$shares = $this->getSharedWith($userId, $shareType, $node, $limit, $offset);
-
-		// Only get deleted shares
-		$shares = array_filter($shares, function(IShare $share) {
-			return $share->getPermissions() === 0;
-		});
-
-		// Only get shares where the owner still exists
-		$shares = array_filter($shares, function (IShare $share) {
-			return $this->userManager->userExists($share->getShareOwner());
-		});
-
-		return $shares;
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getShareById($id, $recipient = null) {
-		if ($id === null) {
-			throw new ShareNotFound();
-		}
-
-		list($providerId, $id) = $this->splitFullId($id);
-
-		try {
-			$provider = $this->factory->getProvider($providerId);
-		} catch (ProviderException $e) {
-			throw new ShareNotFound();
-		}
-
-		$share = $provider->getShareById($id, $recipient);
-
-		$this->checkExpireDate($share);
-
-		return $share;
-	}
-
-	/**
-	 * Get all the shares for a given path
-	 *
-	 * @param \OCP\Files\Node $path
-	 * @param int $page
-	 * @param int $perPage
-	 *
-	 * @return Share[]
-	 */
-	public function getSharesByPath(\OCP\Files\Node $path, $page=0, $perPage=50) {
-		return [];
-	}
-
-	/**
-	 * Get the share by token possible with password
-	 *
-	 * @param string $token
-	 * @return Share
-	 *
-	 * @throws ShareNotFound
-	 */
-	public function getShareByToken($token) {
-		// tokens can't be valid local user names
-		if ($this->userManager->userExists($token)) {
-			throw new ShareNotFound();
-		}
-		$share = null;
-		try {
-			if($this->shareApiAllowLinks()) {
-				$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_LINK);
-				$share = $provider->getShareByToken($token);
-			}
-		} catch (ProviderException $e) {
-		} catch (ShareNotFound $e) {
-		}
-
-
-		// If it is not a link share try to fetch a federated share by token
-		if ($share === null) {
-			try {
-				$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_REMOTE);
-				$share = $provider->getShareByToken($token);
-			} catch (ProviderException $e) {
-			} catch (ShareNotFound $e) {
-			}
-		}
-
-		// If it is not a link share try to fetch a mail share by token
-		if ($share === null && $this->shareProviderExists(\OCP\Share::SHARE_TYPE_EMAIL)) {
-			try {
-				$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_EMAIL);
-				$share = $provider->getShareByToken($token);
-			} catch (ProviderException $e) {
-			} catch (ShareNotFound $e) {
-			}
-		}
-
-		if ($share === null && $this->shareProviderExists(\OCP\Share::SHARE_TYPE_CIRCLE)) {
-			try {
-				$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_CIRCLE);
-				$share = $provider->getShareByToken($token);
-			} catch (ProviderException $e) {
-			} catch (ShareNotFound $e) {
-			}
-		}
-
-		if ($share === null && $this->shareProviderExists(\OCP\Share::SHARE_TYPE_ROOM)) {
-			try {
-				$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_ROOM);
-				$share = $provider->getShareByToken($token);
-			} catch (ProviderException $e) {
-			} catch (ShareNotFound $e) {
-			}
-		}
-
-		if ($share === null) {
-			throw new ShareNotFound($this->l->t('The requested share does not exist anymore'));
-		}
-
-		$this->checkExpireDate($share);
-
-		/*
+        $shares2 = [];
+
+        while(true) {
+            $added = 0;
+            foreach ($shares as $share) {
+
+                try {
+                    $this->checkExpireDate($share);
+                } catch (ShareNotFound $e) {
+                    //Ignore since this basically means the share is deleted
+                    continue;
+                }
+
+                $added++;
+                $shares2[] = $share;
+
+                if (count($shares2) === $limit) {
+                    break;
+                }
+            }
+
+            // If we did not fetch more shares than the limit then there are no more shares
+            if (count($shares) < $limit) {
+                break;
+            }
+
+            if (count($shares2) === $limit) {
+                break;
+            }
+
+            // If there was no limit on the select we are done
+            if ($limit === -1) {
+                break;
+            }
+
+            $offset += $added;
+
+            // Fetch again $limit shares
+            $shares = $provider->getSharesBy($userId, $shareType, $path, $reshares, $limit, $offset);
+
+            // No more shares means we are done
+            if (empty($shares)) {
+                break;
+            }
+        }
+
+        $shares = $shares2;
+
+        return $shares;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getSharedWith($userId, $shareType, $node = null, $limit = 50, $offset = 0) {
+        try {
+            $provider = $this->factory->getProviderForType($shareType);
+        } catch (ProviderException $e) {
+            return [];
+        }
+
+        $shares = $provider->getSharedWith($userId, $shareType, $node, $limit, $offset);
+
+        // remove all shares which are already expired
+        foreach ($shares as $key => $share) {
+            try {
+                $this->checkExpireDate($share);
+            } catch (ShareNotFound $e) {
+                unset($shares[$key]);
+            }
+        }
+
+        return $shares;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getDeletedSharedWith($userId, $shareType, $node = null, $limit = 50, $offset = 0) {
+        $shares = $this->getSharedWith($userId, $shareType, $node, $limit, $offset);
+
+        // Only get deleted shares
+        $shares = array_filter($shares, function(IShare $share) {
+            return $share->getPermissions() === 0;
+        });
+
+        // Only get shares where the owner still exists
+        $shares = array_filter($shares, function (IShare $share) {
+            return $this->userManager->userExists($share->getShareOwner());
+        });
+
+        return $shares;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getShareById($id, $recipient = null) {
+        if ($id === null) {
+            throw new ShareNotFound();
+        }
+
+        list($providerId, $id) = $this->splitFullId($id);
+
+        try {
+            $provider = $this->factory->getProvider($providerId);
+        } catch (ProviderException $e) {
+            throw new ShareNotFound();
+        }
+
+        $share = $provider->getShareById($id, $recipient);
+
+        $this->checkExpireDate($share);
+
+        return $share;
+    }
+
+    /**
+     * Get all the shares for a given path
+     *
+     * @param \OCP\Files\Node $path
+     * @param int $page
+     * @param int $perPage
+     *
+     * @return Share[]
+     */
+    public function getSharesByPath(\OCP\Files\Node $path, $page=0, $perPage=50) {
+        return [];
+    }
+
+    /**
+     * Get the share by token possible with password
+     *
+     * @param string $token
+     * @return Share
+     *
+     * @throws ShareNotFound
+     */
+    public function getShareByToken($token) {
+        // tokens can't be valid local user names
+        if ($this->userManager->userExists($token)) {
+            throw new ShareNotFound();
+        }
+        $share = null;
+        try {
+            if($this->shareApiAllowLinks()) {
+                $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_LINK);
+                $share = $provider->getShareByToken($token);
+            }
+        } catch (ProviderException $e) {
+        } catch (ShareNotFound $e) {
+        }
+
+
+        // If it is not a link share try to fetch a federated share by token
+        if ($share === null) {
+            try {
+                $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_REMOTE);
+                $share = $provider->getShareByToken($token);
+            } catch (ProviderException $e) {
+            } catch (ShareNotFound $e) {
+            }
+        }
+
+        // If it is not a link share try to fetch a mail share by token
+        if ($share === null && $this->shareProviderExists(\OCP\Share::SHARE_TYPE_EMAIL)) {
+            try {
+                $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_EMAIL);
+                $share = $provider->getShareByToken($token);
+            } catch (ProviderException $e) {
+            } catch (ShareNotFound $e) {
+            }
+        }
+
+        if ($share === null && $this->shareProviderExists(\OCP\Share::SHARE_TYPE_CIRCLE)) {
+            try {
+                $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_CIRCLE);
+                $share = $provider->getShareByToken($token);
+            } catch (ProviderException $e) {
+            } catch (ShareNotFound $e) {
+            }
+        }
+
+        if ($share === null && $this->shareProviderExists(\OCP\Share::SHARE_TYPE_ROOM)) {
+            try {
+                $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_ROOM);
+                $share = $provider->getShareByToken($token);
+            } catch (ProviderException $e) {
+            } catch (ShareNotFound $e) {
+            }
+        }
+
+        if ($share === null) {
+            throw new ShareNotFound($this->l->t('The requested share does not exist anymore'));
+        }
+
+        $this->checkExpireDate($share);
+
+        /*
 		 * Reduce the permissions for link shares if public upload is not enabled
 		 */
-		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK &&
-			!$this->shareApiLinkAllowPublicUpload()) {
-			$share->setPermissions($share->getPermissions() & ~(\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE));
-		}
-
-		return $share;
-	}
-
-	protected function checkExpireDate($share) {
-		if ($share->getExpirationDate() !== null &&
-			$share->getExpirationDate() <= new \DateTime()) {
-			$this->deleteShare($share);
-			throw new ShareNotFound($this->l->t('The requested share does not exist anymore'));
-		}
-
-	}
-
-	/**
-	 * Verify the password of a public share
-	 *
-	 * @param \OCP\Share\IShare $share
-	 * @param string $password
-	 * @return bool
-	 */
-	public function checkPassword(\OCP\Share\IShare $share, $password) {
-		$passwordProtected = $share->getShareType() !== \OCP\Share::SHARE_TYPE_LINK
-			|| $share->getShareType() !== \OCP\Share::SHARE_TYPE_EMAIL;
-		if (!$passwordProtected) {
-			//TODO maybe exception?
-			return false;
-		}
-
-		if ($password === null || $share->getPassword() === null) {
-			return false;
-		}
-
-		$newHash = '';
-		if (!$this->hasher->verify($password, $share->getPassword(), $newHash)) {
-			return false;
-		}
-
-		if (!empty($newHash)) {
-			$share->setPassword($newHash);
-			$provider = $this->factory->getProviderForType($share->getShareType());
-			$provider->update($share);
-		}
-
-		return true;
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function userDeleted($uid) {
-		$types = [\OCP\Share::SHARE_TYPE_USER, \OCP\Share::SHARE_TYPE_GROUP, \OCP\Share::SHARE_TYPE_LINK, \OCP\Share::SHARE_TYPE_REMOTE, \OCP\Share::SHARE_TYPE_EMAIL];
-
-		foreach ($types as $type) {
-			try {
-				$provider = $this->factory->getProviderForType($type);
-			} catch (ProviderException $e) {
-				continue;
-			}
-			$provider->userDeleted($uid, $type);
-		}
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function groupDeleted($gid) {
-		$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
-		$provider->groupDeleted($gid);
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function userDeletedFromGroup($uid, $gid) {
-		$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
-		$provider->userDeletedFromGroup($uid, $gid);
-	}
-
-	/**
-	 * Get access list to a path. This means
-	 * all the users that can access a given path.
-	 *
-	 * Consider:
-	 * -root
-	 * |-folder1 (23)
-	 *  |-folder2 (32)
-	 *   |-fileA (42)
-	 *
-	 * fileA is shared with user1 and user1@server1
-	 * folder2 is shared with group2 (user4 is a member of group2)
-	 * folder1 is shared with user2 (renamed to "folder (1)") and user2@server2
-	 *
-	 * Then the access list to '/folder1/folder2/fileA' with $currentAccess is:
-	 * [
-	 *  users  => [
-	 *      'user1' => ['node_id' => 42, 'node_path' => '/fileA'],
-	 *      'user4' => ['node_id' => 32, 'node_path' => '/folder2'],
-	 *      'user2' => ['node_id' => 23, 'node_path' => '/folder (1)'],
-	 *  ],
-	 *  remote => [
-	 *      'user1@server1' => ['node_id' => 42, 'token' => 'SeCr3t'],
-	 *      'user2@server2' => ['node_id' => 23, 'token' => 'FooBaR'],
-	 *  ],
-	 *  public => bool
-	 *  mail => bool
-	 * ]
-	 *
-	 * The access list to '/folder1/folder2/fileA' **without** $currentAccess is:
-	 * [
-	 *  users  => ['user1', 'user2', 'user4'],
-	 *  remote => bool,
-	 *  public => bool
-	 *  mail => bool
-	 * ]
-	 *
-	 * This is required for encryption/activity
-	 *
-	 * @param \OCP\Files\Node $path
-	 * @param bool $recursive Should we check all parent folders as well
-	 * @param bool $currentAccess Ensure the recipient has access to the file (e.g. did not unshare it)
-	 * @return array
-	 */
-	public function getAccessList(\OCP\Files\Node $path, $recursive = true, $currentAccess = false) {
-		$owner = $path->getOwner()->getUID();
-
-		if ($currentAccess) {
-			$al = ['users' => [], 'remote' => [], 'public' => false];
-		} else {
-			$al = ['users' => [], 'remote' => false, 'public' => false];
-		}
-		if (!$this->userManager->userExists($owner)) {
-			return $al;
-		}
-
-		//Get node for the owner
-		$userFolder = $this->rootFolder->getUserFolder($owner);
-		if ($path->getId() !== $userFolder->getId() && !$userFolder->isSubNode($path)) {
-			$path = $userFolder->getById($path->getId())[0];
-		}
-
-		$providers = $this->factory->getAllProviders();
-
-		/** @var Node[] $nodes */
-		$nodes = [];
-
-
-		if ($currentAccess) {
-			$ownerPath = $path->getPath();
-			$ownerPath = explode('/', $ownerPath, 4);
-			if (count($ownerPath) < 4) {
-				$ownerPath = '';
-			} else {
-				$ownerPath = $ownerPath[3];
-			}
-			$al['users'][$owner] = [
-				'node_id' => $path->getId(),
-				'node_path' => '/' . $ownerPath,
-			];
-		} else {
-			$al['users'][] = $owner;
-		}
-
-		// Collect all the shares
-		while ($path->getPath() !== $userFolder->getPath()) {
-			$nodes[] = $path;
-			if (!$recursive) {
-				break;
-			}
-			$path = $path->getParent();
-		}
-
-		foreach ($providers as $provider) {
-			$tmp = $provider->getAccessList($nodes, $currentAccess);
-
-			foreach ($tmp as $k => $v) {
-				if (isset($al[$k])) {
-					if (is_array($al[$k])) {
-						if ($currentAccess) {
-							$al[$k] += $v;
-						} else {
-							$al[$k] = array_merge($al[$k], $v);
-							$al[$k] = array_unique($al[$k]);
-							$al[$k] = array_values($al[$k]);
-						}
-					} else {
-						$al[$k] = $al[$k] || $v;
-					}
-				} else {
-					$al[$k] = $v;
-				}
-			}
-		}
-
-		return $al;
-	}
-
-	/**
-	 * Create a new share
-	 * @return \OCP\Share\IShare
-	 */
-	public function newShare() {
-		return new \OC\Share20\Share($this->rootFolder, $this->userManager);
-	}
-
-	/**
-	 * Is the share API enabled
-	 *
-	 * @return bool
-	 */
-	public function shareApiEnabled() {
-		return $this->config->getAppValue('core', 'shareapi_enabled', 'yes') === 'yes';
-	}
-
-	/**
-	 * Is public link sharing enabled
-	 *
-	 * @return bool
-	 */
-	public function shareApiAllowLinks() {
-		return $this->config->getAppValue('core', 'shareapi_allow_links', 'yes') === 'yes';
-	}
-
-	/**
-	 * Is password on public link requires
-	 *
-	 * @return bool
-	 */
-	public function shareApiLinkEnforcePassword() {
-		return $this->config->getAppValue('core', 'shareapi_enforce_links_password', 'no') === 'yes';
-	}
-
-	/**
-	 * Is default expire date enabled
-	 *
-	 * @return bool
-	 */
-	public function shareApiLinkDefaultExpireDate() {
-		return $this->config->getAppValue('core', 'shareapi_default_expire_date', 'no') === 'yes';
-	}
-
-	/**
-	 * Is default expire date enforced
-	 *`
-	 * @return bool
-	 */
-	public function shareApiLinkDefaultExpireDateEnforced() {
-		return $this->shareApiLinkDefaultExpireDate() &&
-			$this->config->getAppValue('core', 'shareapi_enforce_expire_date', 'no') === 'yes';
-	}
-
-	/**
-	 * Number of default expire days
-	 *shareApiLinkAllowPublicUpload
-	 * @return int
-	 */
-	public function shareApiLinkDefaultExpireDays() {
-		return (int)$this->config->getAppValue('core', 'shareapi_expire_after_n_days', '7');
-	}
-
-	/**
-	 * Allow public upload on link shares
-	 *
-	 * @return bool
-	 */
-	public function shareApiLinkAllowPublicUpload() {
-		return $this->config->getAppValue('core', 'shareapi_allow_public_upload', 'yes') === 'yes';
-	}
-
-	/**
-	 * check if user can only share with group members
-	 * @return bool
-	 */
-	public function shareWithGroupMembersOnly() {
-		return $this->config->getAppValue('core', 'shareapi_only_share_with_group_members', 'no') === 'yes';
-	}
-
-	/**
-	 * Check if users can share with groups
-	 * @return bool
-	 */
-	public function allowGroupSharing() {
-		return $this->config->getAppValue('core', 'shareapi_allow_group_sharing', 'yes') === 'yes';
-	}
-
-	/**
-	 * Copied from \OC_Util::isSharingDisabledForUser
-	 *
-	 * TODO: Deprecate fuction from OC_Util
-	 *
-	 * @param string $userId
-	 * @return bool
-	 */
-	public function sharingDisabledForUser($userId) {
-		if ($userId === null) {
-			return false;
-		}
-
-		if (isset($this->sharingDisabledForUsersCache[$userId])) {
-			return $this->sharingDisabledForUsersCache[$userId];
-		}
-
-		if ($this->config->getAppValue('core', 'shareapi_exclude_groups', 'no') === 'yes') {
-			$groupsList = $this->config->getAppValue('core', 'shareapi_exclude_groups_list', '');
-			$excludedGroups = json_decode($groupsList);
-			if (is_null($excludedGroups)) {
-				$excludedGroups = explode(',', $groupsList);
-				$newValue = json_encode($excludedGroups);
-				$this->config->setAppValue('core', 'shareapi_exclude_groups_list', $newValue);
-			}
-			$user = $this->userManager->get($userId);
-			$usersGroups = $this->groupManager->getUserGroupIds($user);
-			if (!empty($usersGroups)) {
-				$remainingGroups = array_diff($usersGroups, $excludedGroups);
-				// if the user is only in groups which are disabled for sharing then
-				// sharing is also disabled for the user
-				if (empty($remainingGroups)) {
-					$this->sharingDisabledForUsersCache[$userId] = true;
-					return true;
-				}
-			}
-		}
-
-		$this->sharingDisabledForUsersCache[$userId] = false;
-		return false;
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function outgoingServer2ServerSharesAllowed() {
-		return $this->config->getAppValue('files_sharing', 'outgoing_server2server_share_enabled', 'yes') === 'yes';
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function outgoingServer2ServerGroupSharesAllowed() {
-		return $this->config->getAppValue('files_sharing', 'outgoing_server2server_group_share_enabled', 'no') === 'yes';
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function shareProviderExists($shareType) {
-		try {
-			$this->factory->getProviderForType($shareType);
-		} catch (ProviderException $e) {
-			return false;
-		}
-
-		return true;
-	}
+        if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK &&
+            !$this->shareApiLinkAllowPublicUpload()) {
+            $share->setPermissions($share->getPermissions() & ~(\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE));
+        }
+
+        return $share;
+    }
+
+    protected function checkExpireDate($share) {
+        if ($share->getExpirationDate() !== null &&
+            $share->getExpirationDate() <= new \DateTime()) {
+            $this->deleteShare($share);
+            throw new ShareNotFound($this->l->t('The requested share does not exist anymore'));
+        }
+
+    }
+
+    /**
+     * Verify the password of a public share
+     *
+     * @param \OCP\Share\IShare $share
+     * @param string $password
+     * @return bool
+     */
+    public function checkPassword(\OCP\Share\IShare $share, $password) {
+        $passwordProtected = $share->getShareType() !== \OCP\Share::SHARE_TYPE_LINK
+            || $share->getShareType() !== \OCP\Share::SHARE_TYPE_EMAIL;
+        if (!$passwordProtected) {
+            //TODO maybe exception?
+            return false;
+        }
+
+        if ($password === null || $share->getPassword() === null) {
+            return false;
+        }
+
+        $newHash = '';
+        if (!$this->hasher->verify($password, $share->getPassword(), $newHash)) {
+            return false;
+        }
+
+        if (!empty($newHash)) {
+            $share->setPassword($newHash);
+            $provider = $this->factory->getProviderForType($share->getShareType());
+            $provider->update($share);
+        }
+
+        return true;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function userDeleted($uid) {
+        $types = [\OCP\Share::SHARE_TYPE_USER, \OCP\Share::SHARE_TYPE_GROUP, \OCP\Share::SHARE_TYPE_LINK, \OCP\Share::SHARE_TYPE_REMOTE, \OCP\Share::SHARE_TYPE_EMAIL];
+
+        foreach ($types as $type) {
+            try {
+                $provider = $this->factory->getProviderForType($type);
+            } catch (ProviderException $e) {
+                continue;
+            }
+            $provider->userDeleted($uid, $type);
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function groupDeleted($gid) {
+        $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
+        $provider->groupDeleted($gid);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function userDeletedFromGroup($uid, $gid) {
+        $provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
+        $provider->userDeletedFromGroup($uid, $gid);
+    }
+
+    /**
+     * Get access list to a path. This means
+     * all the users that can access a given path.
+     *
+     * Consider:
+     * -root
+     * |-folder1 (23)
+     *  |-folder2 (32)
+     *   |-fileA (42)
+     *
+     * fileA is shared with user1 and user1@server1
+     * folder2 is shared with group2 (user4 is a member of group2)
+     * folder1 is shared with user2 (renamed to "folder (1)") and user2@server2
+     *
+     * Then the access list to '/folder1/folder2/fileA' with $currentAccess is:
+     * [
+     *  users  => [
+     *      'user1' => ['node_id' => 42, 'node_path' => '/fileA'],
+     *      'user4' => ['node_id' => 32, 'node_path' => '/folder2'],
+     *      'user2' => ['node_id' => 23, 'node_path' => '/folder (1)'],
+     *  ],
+     *  remote => [
+     *      'user1@server1' => ['node_id' => 42, 'token' => 'SeCr3t'],
+     *      'user2@server2' => ['node_id' => 23, 'token' => 'FooBaR'],
+     *  ],
+     *  public => bool
+     *  mail => bool
+     * ]
+     *
+     * The access list to '/folder1/folder2/fileA' **without** $currentAccess is:
+     * [
+     *  users  => ['user1', 'user2', 'user4'],
+     *  remote => bool,
+     *  public => bool
+     *  mail => bool
+     * ]
+     *
+     * This is required for encryption/activity
+     *
+     * @param \OCP\Files\Node $path
+     * @param bool $recursive Should we check all parent folders as well
+     * @param bool $currentAccess Ensure the recipient has access to the file (e.g. did not unshare it)
+     * @return array
+     */
+    public function getAccessList(\OCP\Files\Node $path, $recursive = true, $currentAccess = false) {
+        $owner = $path->getOwner()->getUID();
+
+        if ($currentAccess) {
+            $al = ['users' => [], 'remote' => [], 'public' => false];
+        } else {
+            $al = ['users' => [], 'remote' => false, 'public' => false];
+        }
+        if (!$this->userManager->userExists($owner)) {
+            return $al;
+        }
+
+        //Get node for the owner
+        $userFolder = $this->rootFolder->getUserFolder($owner);
+        if ($path->getId() !== $userFolder->getId() && !$userFolder->isSubNode($path)) {
+            $path = $userFolder->getById($path->getId())[0];
+        }
+
+        $providers = $this->factory->getAllProviders();
+
+        /** @var Node[] $nodes */
+        $nodes = [];
+
+
+        if ($currentAccess) {
+            $ownerPath = $path->getPath();
+            $ownerPath = explode('/', $ownerPath, 4);
+            if (count($ownerPath) < 4) {
+                $ownerPath = '';
+            } else {
+                $ownerPath = $ownerPath[3];
+            }
+            $al['users'][$owner] = [
+                'node_id' => $path->getId(),
+                'node_path' => '/' . $ownerPath,
+            ];
+        } else {
+            $al['users'][] = $owner;
+        }
+
+        // Collect all the shares
+        while ($path->getPath() !== $userFolder->getPath()) {
+            $nodes[] = $path;
+            if (!$recursive) {
+                break;
+            }
+            $path = $path->getParent();
+        }
+
+        foreach ($providers as $provider) {
+            $tmp = $provider->getAccessList($nodes, $currentAccess);
+
+            foreach ($tmp as $k => $v) {
+                if (isset($al[$k])) {
+                    if (is_array($al[$k])) {
+                        if ($currentAccess) {
+                            $al[$k] += $v;
+                        } else {
+                            $al[$k] = array_merge($al[$k], $v);
+                            $al[$k] = array_unique($al[$k]);
+                            $al[$k] = array_values($al[$k]);
+                        }
+                    } else {
+                        $al[$k] = $al[$k] || $v;
+                    }
+                } else {
+                    $al[$k] = $v;
+                }
+            }
+        }
+
+        return $al;
+    }
+
+    /**
+     * Create a new share
+     * @return \OCP\Share\IShare
+     */
+    public function newShare() {
+        return new \OC\Share20\Share($this->rootFolder, $this->userManager);
+    }
+
+    /**
+     * Is the share API enabled
+     *
+     * @return bool
+     */
+    public function shareApiEnabled() {
+        return $this->config->getAppValue('core', 'shareapi_enabled', 'yes') === 'yes';
+    }
+
+    /**
+     * Is public link sharing enabled
+     *
+     * @return bool
+     */
+    public function shareApiAllowLinks() {
+        return $this->config->getAppValue('core', 'shareapi_allow_links', 'yes') === 'yes';
+    }
+
+    /**
+     * Is password on public link requires
+     *
+     * @return bool
+     */
+    public function shareApiLinkEnforcePassword() {
+        return $this->config->getAppValue('core', 'shareapi_enforce_links_password', 'no') === 'yes';
+    }
+
+    /**
+     * Is default expire date enabled
+     *
+     * @return bool
+     */
+    public function shareApiLinkDefaultExpireDate() {
+        return $this->config->getAppValue('core', 'shareapi_default_expire_date', 'no') === 'yes';
+    }
+
+    /**
+     * Is default expire date enforced
+     *`
+     * @return bool
+     */
+    public function shareApiLinkDefaultExpireDateEnforced() {
+        return $this->shareApiLinkDefaultExpireDate() &&
+            $this->config->getAppValue('core', 'shareapi_enforce_expire_date', 'no') === 'yes';
+    }
+
+    /**
+     * Number of default expire days
+     *shareApiLinkAllowPublicUpload
+     * @return int
+     */
+    public function shareApiLinkDefaultExpireDays() {
+        return (int)$this->config->getAppValue('core', 'shareapi_expire_after_n_days', '7');
+    }
+
+    /**
+     * Allow public upload on link shares
+     *
+     * @return bool
+     */
+    public function shareApiLinkAllowPublicUpload() {
+        return $this->config->getAppValue('core', 'shareapi_allow_public_upload', 'yes') === 'yes';
+    }
+
+    /**
+     * check if user can only share with group members
+     * @return bool
+     */
+    public function shareWithGroupMembersOnly() {
+        return $this->config->getAppValue('core', 'shareapi_only_share_with_group_members', 'no') === 'yes';
+    }
+
+    /**
+     * Check if users can share with groups
+     * @return bool
+     */
+    public function allowGroupSharing() {
+        return $this->config->getAppValue('core', 'shareapi_allow_group_sharing', 'yes') === 'yes';
+    }
+
+    /**
+     * Copied from \OC_Util::isSharingDisabledForUser
+     *
+     * TODO: Deprecate fuction from OC_Util
+     *
+     * @param string $userId
+     * @return bool
+     */
+    public function sharingDisabledForUser($userId) {
+        if ($userId === null) {
+            return false;
+        }
+
+        if (isset($this->sharingDisabledForUsersCache[$userId])) {
+            return $this->sharingDisabledForUsersCache[$userId];
+        }
+
+        if ($this->config->getAppValue('core', 'shareapi_exclude_groups', 'no') === 'yes') {
+            $groupsList = $this->config->getAppValue('core', 'shareapi_exclude_groups_list', '');
+            $excludedGroups = json_decode($groupsList);
+            if (is_null($excludedGroups)) {
+                $excludedGroups = explode(',', $groupsList);
+                $newValue = json_encode($excludedGroups);
+                $this->config->setAppValue('core', 'shareapi_exclude_groups_list', $newValue);
+            }
+            $user = $this->userManager->get($userId);
+            $usersGroups = $this->groupManager->getUserGroupIds($user);
+            if (!empty($usersGroups)) {
+                $remainingGroups = array_diff($usersGroups, $excludedGroups);
+                // if the user is only in groups which are disabled for sharing then
+                // sharing is also disabled for the user
+                if (empty($remainingGroups)) {
+                    $this->sharingDisabledForUsersCache[$userId] = true;
+                    return true;
+                }
+            }
+        }
+
+        $this->sharingDisabledForUsersCache[$userId] = false;
+        return false;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function outgoingServer2ServerSharesAllowed() {
+        return $this->config->getAppValue('files_sharing', 'outgoing_server2server_share_enabled', 'yes') === 'yes';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function outgoingServer2ServerGroupSharesAllowed() {
+        return $this->config->getAppValue('files_sharing', 'outgoing_server2server_group_share_enabled', 'no') === 'yes';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function shareProviderExists($shareType) {
+        try {
+            $this->factory->getProviderForType($shareType);
+        } catch (ProviderException $e) {
+            return false;
+        }
+
+        return true;
+    }
 
 }

Spacing +25 added lines, -25 removed lines

@@ -226,7 +226,7 @@ 
 			if ($share->getSharedWith() === null) {
 				throw new \InvalidArgumentException('SharedWith should not be empty');
 			}
-		}  else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_REMOTE_GROUP) {
+		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_REMOTE_GROUP) {
 			if ($share->getSharedWith() === null) {
 				throw new \InvalidArgumentException('SharedWith should not be empty');
 			}
@@ -362,7 +362,7 @@ 
 
 		if ($fullId === null && $expirationDate === null && $this->shareApiLinkDefaultExpireDate()) {
 			$expirationDate = new \DateTime();
-			$expirationDate->setTime(0,0,0);
+			$expirationDate->setTime(0, 0, 0);
 			$expirationDate->add(new \DateInterval('P'.$this->shareApiLinkDefaultExpireDays().'D'));
 		}
 
@@ -374,7 +374,7 @@ 
 
 			$date = new \DateTime();
 			$date->setTime(0, 0, 0);
-			$date->add(new \DateInterval('P' . $this->shareApiLinkDefaultExpireDays() . 'D'));
+			$date->add(new \DateInterval('P'.$this->shareApiLinkDefaultExpireDays().'D'));
 			if ($date < $expirationDate) {
 				$message = $this->l->t('Can’t set expiration date more than %s days in the future', [$this->shareApiLinkDefaultExpireDays()]);
 				throw new GenericShareException($message, $message, 404);
@@ -427,7 +427,7 @@ 
 		 */
 		$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_USER);
 		$existingShares = $provider->getSharesByPath($share->getNode());
-		foreach($existingShares as $existingShare) {
+		foreach ($existingShares as $existingShare) {
 			// Ignore if it is the same share
 			try {
 				if ($existingShare->getFullId() === $share->getFullId()) {
@@ -484,7 +484,7 @@ 
 		 */
 		$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
 		$existingShares = $provider->getSharesByPath($share->getNode());
-		foreach($existingShares as $existingShare) {
+		foreach ($existingShares as $existingShare) {
 			try {
 				if ($existingShare->getFullId() === $share->getFullId()) {
 					continue;
@@ -553,7 +553,7 @@ 
 		// Make sure that we do not share a path that contains a shared mountpoint
 		if ($path instanceof \OCP\Files\Folder) {
 			$mounts = $this->mountManager->findIn($path->getPath());
-			foreach($mounts as $mount) {
+			foreach ($mounts as $mount) {
 				if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
 					throw new \InvalidArgumentException('Path contains files shared with you');
 				}
@@ -601,7 +601,7 @@ 
 		$storage = $share->getNode()->getStorage();
 		if ($storage->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
 			$parent = $share->getNode()->getParent();
-			while($parent->getStorage()->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
+			while ($parent->getStorage()->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
 				$parent = $parent->getParent();
 			}
 			$share->setShareOwner($parent->getOwner()->getUID());
@@ -654,7 +654,7 @@ 
 		}
 
 		// Generate the target
-		$target = $this->config->getSystemValue('share_folder', '/') .'/'. $share->getNode()->getName();
+		$target = $this->config->getSystemValue('share_folder', '/').'/'.$share->getNode()->getName();
 		$target = \OC\Files\Filesystem::normalizePath($target);
 		$share->setTarget($target);
 
@@ -677,7 +677,7 @@ 
 
 		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
 			$mailSend = $share->getMailSend();
-			if($mailSend === true) {
+			if ($mailSend === true) {
 				$user = $this->userManager->get($share->getSharedWith());
 				if ($user !== null) {
 					$emailAddress = $user->getEMailAddress();
@@ -692,12 +692,12 @@ 
 							$emailAddress,
 							$share->getExpirationDate()
 						);
-						$this->logger->debug('Send share notification to ' . $emailAddress . ' for share with ID ' . $share->getId(), ['app' => 'share']);
+						$this->logger->debug('Send share notification to '.$emailAddress.' for share with ID '.$share->getId(), ['app' => 'share']);
 					} else {
-						$this->logger->debug('Share notification not send to ' . $share->getSharedWith() . ' because email address is not set.', ['app' => 'share']);
+						$this->logger->debug('Share notification not send to '.$share->getSharedWith().' because email address is not set.', ['app' => 'share']);
 					}
 				} else {
-					$this->logger->debug('Share notification not send to ' . $share->getSharedWith() . ' because user could not be found.', ['app' => 'share']);
+					$this->logger->debug('Share notification not send to '.$share->getSharedWith().' because user could not be found.', ['app' => 'share']);
 				}
 			} else {
 				$this->logger->debug('Share notification not send because mailsend is false.', ['app' => 'share']);
@@ -741,7 +741,7 @@ 
 		$text = $l->t('%1$s shared »%2$s« with you.', [$initiatorDisplayName, $filename]);
 
 		$emailTemplate->addBodyText(
-			htmlspecialchars($text . ' ' . $l->t('Click the button below to open it.')),
+			htmlspecialchars($text.' '.$l->t('Click the button below to open it.')),
 			$text
 		);
 		$emailTemplate->addBodyButton(
@@ -765,9 +765,9 @@ 
 		// The "Reply-To" is set to the sharer if an mail address is configured
 		// also the default footer contains a "Do not reply" which needs to be adjusted.
 		$initiatorEmail = $initiatorUser->getEMailAddress();
-		if($initiatorEmail !== null) {
+		if ($initiatorEmail !== null) {
 			$message->setReplyTo([$initiatorEmail => $initiatorDisplayName]);
-			$emailTemplate->addFooter($instanceName . ($this->defaults->getSlogan() !== '' ? ' - ' . $this->defaults->getSlogan() : ''));
+			$emailTemplate->addFooter($instanceName.($this->defaults->getSlogan() !== '' ? ' - '.$this->defaults->getSlogan() : ''));
 		} else {
 			$emailTemplate->addFooter();
 		}
@@ -986,7 +986,7 @@ 
 	 * @param string $recipientId
 	 */
 	public function deleteFromSelf(\OCP\Share\IShare $share, $recipientId) {
-		list($providerId, ) = $this->splitFullId($share->getFullId());
+		list($providerId,) = $this->splitFullId($share->getFullId());
 		$provider = $this->factory->getProvider($providerId);
 
 		$provider->deleteFromSelf($share, $recipientId);
@@ -995,7 +995,7 @@ 
 	}
 
 	public function restoreShare(IShare $share, string $recipientId): IShare {
-		list($providerId, ) = $this->splitFullId($share->getFullId());
+		list($providerId,) = $this->splitFullId($share->getFullId());
 		$provider = $this->factory->getProvider($providerId);
 
 		return $provider->restore($share, $recipientId);
@@ -1016,7 +1016,7 @@ 
 		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
 			$sharedWith = $this->groupManager->get($share->getSharedWith());
 			if (is_null($sharedWith)) {
-				throw new \InvalidArgumentException('Group "' . $share->getSharedWith() . '" does not exist');
+				throw new \InvalidArgumentException('Group "'.$share->getSharedWith().'" does not exist');
 			}
 			$recipient = $this->userManager->get($recipientId);
 			if (!$sharedWith->inGroup($recipient)) {
@@ -1024,7 +1024,7 @@ 
 			}
 		}
 
-		list($providerId, ) = $this->splitFullId($share->getFullId());
+		list($providerId,) = $this->splitFullId($share->getFullId());
 		$provider = $this->factory->getProvider($providerId);
 
 		$provider->move($share, $recipientId);
@@ -1071,7 +1071,7 @@ 
 
 		$shares2 = [];
 
-		while(true) {
+		while (true) {
 			$added = 0;
 			foreach ($shares as $share) {
 
@@ -1156,7 +1156,7 @@ 
 		});
 
 		// Only get shares where the owner still exists
-		$shares = array_filter($shares, function (IShare $share) {
+		$shares = array_filter($shares, function(IShare $share) {
 			return $this->userManager->userExists($share->getShareOwner());
 		});
 
@@ -1195,7 +1195,7 @@ 
 	 *
 	 * @return Share[]
 	 */
-	public function getSharesByPath(\OCP\Files\Node $path, $page=0, $perPage=50) {
+	public function getSharesByPath(\OCP\Files\Node $path, $page = 0, $perPage = 50) {
 		return [];
 	}
 
@@ -1214,7 +1214,7 @@ 
 		}
 		$share = null;
 		try {
-			if($this->shareApiAllowLinks()) {
+			if ($this->shareApiAllowLinks()) {
 				$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_LINK);
 				$share = $provider->getShareByToken($token);
 			}
@@ -1430,7 +1430,7 @@ 
 			}
 			$al['users'][$owner] = [
 				'node_id' => $path->getId(),
-				'node_path' => '/' . $ownerPath,
+				'node_path' => '/'.$ownerPath,
 			];
 		} else {
 			$al['users'][] = $owner;
@@ -1530,7 +1530,7 @@ 
 	 * @return int
 	 */
 	public function shareApiLinkDefaultExpireDays() {
-		return (int)$this->config->getAppValue('core', 'shareapi_expire_after_n_days', '7');
+		return (int) $this->config->getAppValue('core', 'shareapi_expire_after_n_days', '7');
 	}
 
 	/**

lib/private/Share/Share.php

Indentation +2067 added lines, -2067 removed lines

@@ -53,2081 +53,2081 @@
  */
 class Share extends Constants {
 
-	/** CRUDS permissions (Create, Read, Update, Delete, Share) using a bitmask
-	 * Construct permissions for share() and setPermissions with Or (|) e.g.
-	 * Give user read and update permissions: PERMISSION_READ | PERMISSION_UPDATE
-	 *
-	 * Check if permission is granted with And (&) e.g. Check if delete is
-	 * granted: if ($permissions & PERMISSION_DELETE)
-	 *
-	 * Remove permissions with And (&) and Not (~) e.g. Remove the update
-	 * permission: $permissions &= ~PERMISSION_UPDATE
-	 *
-	 * Apps are required to handle permissions on their own, this class only
-	 * stores and manages the permissions of shares
-	 * @see lib/public/constants.php
-	 */
-
-	/**
-	 * Register a sharing backend class that implements OCP\Share_Backend for an item type
-	 * @param string $itemType Item type
-	 * @param string $class Backend class
-	 * @param string $collectionOf (optional) Depends on item type
-	 * @param array $supportedFileExtensions (optional) List of supported file extensions if this item type depends on files
-	 * @return boolean true if backend is registered or false if error
-	 */
-	public static function registerBackend($itemType, $class, $collectionOf = null, $supportedFileExtensions = null) {
-		if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_enabled', 'yes') == 'yes') {
-			if (!isset(self::$backendTypes[$itemType])) {
-				self::$backendTypes[$itemType] = array(
-					'class' => $class,
-					'collectionOf' => $collectionOf,
-					'supportedFileExtensions' => $supportedFileExtensions
-				);
-				if(count(self::$backendTypes) === 1) {
-					Util::addScript('core', 'merged-share-backend');
-				}
-				return true;
-			}
-			\OCP\Util::writeLog('OCP\Share',
-				'Sharing backend '.$class.' not registered, '.self::$backendTypes[$itemType]['class']
-				.' is already registered for '.$itemType,
-				ILogger::WARN);
-		}
-		return false;
-	}
-
-	/**
-	 * Get the items of item type shared with the current user
-	 * @param string $itemType
-	 * @param int $format (optional) Format type must be defined by the backend
-	 * @param mixed $parameters (optional)
-	 * @param int $limit Number of items to return (optional) Returns all by default
-	 * @param boolean $includeCollections (optional)
-	 * @return mixed Return depends on format
-	 */
-	public static function getItemsSharedWith($itemType, $format = self::FORMAT_NONE,
-											  $parameters = null, $limit = -1, $includeCollections = false) {
-		return self::getItems($itemType, null, self::$shareTypeUserAndGroups, \OC_User::getUser(), null, $format,
-			$parameters, $limit, $includeCollections);
-	}
-
-	/**
-	 * Get the items of item type shared with a user
-	 * @param string $itemType
-	 * @param string $user id for which user we want the shares
-	 * @param int $format (optional) Format type must be defined by the backend
-	 * @param mixed $parameters (optional)
-	 * @param int $limit Number of items to return (optional) Returns all by default
-	 * @param boolean $includeCollections (optional)
-	 * @return mixed Return depends on format
-	 */
-	public static function getItemsSharedWithUser($itemType, $user, $format = self::FORMAT_NONE,
-												  $parameters = null, $limit = -1, $includeCollections = false) {
-		return self::getItems($itemType, null, self::$shareTypeUserAndGroups, $user, null, $format,
-			$parameters, $limit, $includeCollections);
-	}
-
-	/**
-	 * Get the item of item type shared with a given user by source
-	 * @param string $itemType
-	 * @param string $itemSource
-	 * @param string $user User to whom the item was shared
-	 * @param string $owner Owner of the share
-	 * @param int $shareType only look for a specific share type
-	 * @return array Return list of items with file_target, permissions and expiration
-	 */
-	public static function getItemSharedWithUser($itemType, $itemSource, $user, $owner = null, $shareType = null) {
-		$shares = array();
-		$fileDependent = false;
-
-		$where = 'WHERE';
-		$fileDependentWhere = '';
-		if ($itemType === 'file' || $itemType === 'folder') {
-			$fileDependent = true;
-			$column = 'file_source';
-			$fileDependentWhere = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` ';
-			$fileDependentWhere .= 'INNER JOIN `*PREFIX*storages` ON `numeric_id` = `*PREFIX*filecache`.`storage` ';
-		} else {
-			$column = 'item_source';
-		}
-
-		$select = self::createSelectStatement(self::FORMAT_NONE, $fileDependent);
-
-		$where .= ' `' . $column . '` = ? AND `item_type` = ? ';
-		$arguments = array($itemSource, $itemType);
-		// for link shares $user === null
-		if ($user !== null) {
-			$where .= ' AND `share_with` = ? ';
-			$arguments[] = $user;
-		}
-
-		if ($shareType !== null) {
-			$where .= ' AND `share_type` = ? ';
-			$arguments[] = $shareType;
-		}
-
-		if ($owner !== null) {
-			$where .= ' AND `uid_owner` = ? ';
-			$arguments[] = $owner;
-		}
-
-		$query = \OC_DB::prepare('SELECT ' . $select . ' FROM `*PREFIX*share` '. $fileDependentWhere . $where);
-
-		$result = \OC_DB::executeAudited($query, $arguments);
-
-		while ($row = $result->fetchRow()) {
-			if ($fileDependent && !self::isFileReachable($row['path'], $row['storage_id'])) {
-				continue;
-			}
-			if ($fileDependent && (int)$row['file_parent'] === -1) {
-				// if it is a mount point we need to get the path from the mount manager
-				$mountManager = \OC\Files\Filesystem::getMountManager();
-				$mountPoint = $mountManager->findByStorageId($row['storage_id']);
-				if (!empty($mountPoint)) {
-					$path = $mountPoint[0]->getMountPoint();
-					$path = trim($path, '/');
-					$path = substr($path, strlen($owner) + 1); //normalize path to 'files/foo.txt`
-					$row['path'] = $path;
-				} else {
-					\OC::$server->getLogger()->warning(
-						'Could not resolve mount point for ' . $row['storage_id'],
-						['app' => 'OCP\Share']
-					);
-				}
-			}
-			$shares[] = $row;
-		}
-
-		//if didn't found a result than let's look for a group share.
-		if(empty($shares) && $user !== null) {
-			$userObject = \OC::$server->getUserManager()->get($user);
-			$groups = [];
-			if ($userObject) {
-				$groups = \OC::$server->getGroupManager()->getUserGroupIds($userObject);
-			}
-
-			if (!empty($groups)) {
-				$where = $fileDependentWhere . ' WHERE `' . $column . '` = ? AND `item_type` = ? AND `share_with` in (?)';
-				$arguments = array($itemSource, $itemType, $groups);
-				$types = array(null, null, IQueryBuilder::PARAM_STR_ARRAY);
-
-				if ($owner !== null) {
-					$where .= ' AND `uid_owner` = ?';
-					$arguments[] = $owner;
-					$types[] = null;
-				}
-
-				// TODO: inject connection, hopefully one day in the future when this
-				// class isn't static anymore...
-				$conn = \OC::$server->getDatabaseConnection();
-				$result = $conn->executeQuery(
-					'SELECT ' . $select . ' FROM `*PREFIX*share` ' . $where,
-					$arguments,
-					$types
-				);
-
-				while ($row = $result->fetch()) {
-					$shares[] = $row;
-				}
-			}
-		}
-
-		return $shares;
-
-	}
-
-	/**
-	 * Get the item of item type shared with the current user by source
-	 * @param string $itemType
-	 * @param string $itemSource
-	 * @param int $format (optional) Format type must be defined by the backend
-	 * @param mixed $parameters
-	 * @param boolean $includeCollections
-	 * @param string $shareWith (optional) define against which user should be checked, default: current user
-	 * @return array
-	 */
-	public static function getItemSharedWithBySource($itemType, $itemSource, $format = self::FORMAT_NONE,
-													 $parameters = null, $includeCollections = false, $shareWith = null) {
-		$shareWith = ($shareWith === null) ? \OC_User::getUser() : $shareWith;
-		return self::getItems($itemType, $itemSource, self::$shareTypeUserAndGroups, $shareWith, null, $format,
-			$parameters, 1, $includeCollections, true);
-	}
-
-	/**
-	 * Based on the given token the share information will be returned - password protected shares will be verified
-	 * @param string $token
-	 * @param bool $checkPasswordProtection
-	 * @return array|boolean false will be returned in case the token is unknown or unauthorized
-	 */
-	public static function getShareByToken($token, $checkPasswordProtection = true) {
-		$query = \OC_DB::prepare('SELECT * FROM `*PREFIX*share` WHERE `token` = ?', 1);
-		$result = $query->execute(array($token));
-		if ($result === false) {
-			\OCP\Util::writeLog('OCP\Share', \OC_DB::getErrorMessage() . ', token=' . $token, ILogger::ERROR);
-		}
-		$row = $result->fetchRow();
-		if ($row === false) {
-			return false;
-		}
-		if (is_array($row) and self::expireItem($row)) {
-			return false;
-		}
-
-		// password protected shares need to be authenticated
-		if ($checkPasswordProtection && !\OC\Share\Share::checkPasswordProtectedShare($row)) {
-			return false;
-		}
-
-		return $row;
-	}
-
-	/**
-	 * Get the shared items of item type owned by the current user
-	 * @param string $itemType
-	 * @param int $format (optional) Format type must be defined by the backend
-	 * @param mixed $parameters
-	 * @param int $limit Number of items to return (optional) Returns all by default
-	 * @param boolean $includeCollections
-	 * @return mixed Return depends on format
-	 */
-	public static function getItemsShared($itemType, $format = self::FORMAT_NONE, $parameters = null,
-										  $limit = -1, $includeCollections = false) {
-		return self::getItems($itemType, null, null, null, \OC_User::getUser(), $format,
-			$parameters, $limit, $includeCollections);
-	}
-
-	/**
-	 * Get the shared item of item type owned by the current user
-	 * @param string $itemType
-	 * @param string $itemSource
-	 * @param int $format (optional) Format type must be defined by the backend
-	 * @param mixed $parameters
-	 * @param boolean $includeCollections
-	 * @return mixed Return depends on format
-	 */
-	public static function getItemShared($itemType, $itemSource, $format = self::FORMAT_NONE,
-										 $parameters = null, $includeCollections = false) {
-		return self::getItems($itemType, $itemSource, null, null, \OC_User::getUser(), $format,
-			$parameters, -1, $includeCollections);
-	}
-
-	/**
-	 * Share an item with a user, group, or via private link
-	 * @param string $itemType
-	 * @param string $itemSource
-	 * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
-	 * @param string $shareWith User or group the item is being shared with
-	 * @param int $permissions CRUDS
-	 * @param string $itemSourceName
-	 * @param \DateTime|null $expirationDate
-	 * @param bool|null $passwordChanged
-	 * @return boolean|string Returns true on success or false on failure, Returns token on success for links
-	 * @throws \OC\HintException when the share type is remote and the shareWith is invalid
-	 * @throws \Exception
-	 * @since 5.0.0 - parameter $itemSourceName was added in 6.0.0, parameter $expirationDate was added in 7.0.0, parameter $passwordChanged added in 9.0.0
-	 * @deprecated 14.0.0 TESTS ONLY - this methods is as of 2018-06 only used by tests
-	 */
-	public static function shareItem($itemType, $itemSource, $shareType, $shareWith, $permissions, $itemSourceName = null, \DateTime $expirationDate = null, $passwordChanged = null) {
-
-		$backend = self::getBackend($itemType);
-		$l = \OC::$server->getL10N('lib');
-
-		if ($backend->isShareTypeAllowed($shareType) === false) {
-			$message = 'Sharing %s failed, because the backend does not allow shares from type %i';
-			$message_t = $l->t('Sharing %s failed, because the backend does not allow shares from type %i', array($itemSourceName, $shareType));
-			\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareType), ILogger::DEBUG);
-			throw new \Exception($message_t);
-		}
-
-		$uidOwner = \OC_User::getUser();
-		$shareWithinGroupOnly = self::shareWithGroupMembersOnly();
-
-		if (is_null($itemSourceName)) {
-			$itemSourceName = $itemSource;
-		}
-		$itemName = $itemSourceName;
-
-		// check if file can be shared
-		if ($itemType === 'file' or $itemType === 'folder') {
-			$path = \OC\Files\Filesystem::getPath($itemSource);
-			$itemName = $path;
-
-			// verify that the file exists before we try to share it
-			if (!$path) {
-				$message = 'Sharing %s failed, because the file does not exist';
-				$message_t = $l->t('Sharing %s failed, because the file does not exist', array($itemSourceName));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-			// verify that the user has share permission
-			if (!\OC\Files\Filesystem::isSharable($path) || \OCP\Util::isSharingDisabledForUser()) {
-				$message = 'You are not allowed to share %s';
-				$message_t = $l->t('You are not allowed to share %s', [$path]);
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $path), ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-		}
-
-		//verify that we don't share a folder which already contains a share mount point
-		if ($itemType === 'folder') {
-			$path = '/' . $uidOwner . '/files' . \OC\Files\Filesystem::getPath($itemSource) . '/';
-			$mountManager = \OC\Files\Filesystem::getMountManager();
-			$mounts = $mountManager->findIn($path);
-			foreach ($mounts as $mount) {
-				if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
-					$message = 'Sharing "' . $itemSourceName . '" failed, because it contains files shared with you!';
-					\OCP\Util::writeLog('OCP\Share', $message, ILogger::DEBUG);
-					throw new \Exception($message);
-				}
-
-			}
-		}
-
-		// single file shares should never have delete permissions
-		if ($itemType === 'file') {
-			$permissions = (int)$permissions & ~\OCP\Constants::PERMISSION_DELETE;
-		}
-
-		//Validate expirationDate
-		if ($expirationDate !== null) {
-			try {
-				/*
+    /** CRUDS permissions (Create, Read, Update, Delete, Share) using a bitmask
+     * Construct permissions for share() and setPermissions with Or (|) e.g.
+     * Give user read and update permissions: PERMISSION_READ | PERMISSION_UPDATE
+     *
+     * Check if permission is granted with And (&) e.g. Check if delete is
+     * granted: if ($permissions & PERMISSION_DELETE)
+     *
+     * Remove permissions with And (&) and Not (~) e.g. Remove the update
+     * permission: $permissions &= ~PERMISSION_UPDATE
+     *
+     * Apps are required to handle permissions on their own, this class only
+     * stores and manages the permissions of shares
+     * @see lib/public/constants.php
+     */
+
+    /**
+     * Register a sharing backend class that implements OCP\Share_Backend for an item type
+     * @param string $itemType Item type
+     * @param string $class Backend class
+     * @param string $collectionOf (optional) Depends on item type
+     * @param array $supportedFileExtensions (optional) List of supported file extensions if this item type depends on files
+     * @return boolean true if backend is registered or false if error
+     */
+    public static function registerBackend($itemType, $class, $collectionOf = null, $supportedFileExtensions = null) {
+        if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_enabled', 'yes') == 'yes') {
+            if (!isset(self::$backendTypes[$itemType])) {
+                self::$backendTypes[$itemType] = array(
+                    'class' => $class,
+                    'collectionOf' => $collectionOf,
+                    'supportedFileExtensions' => $supportedFileExtensions
+                );
+                if(count(self::$backendTypes) === 1) {
+                    Util::addScript('core', 'merged-share-backend');
+                }
+                return true;
+            }
+            \OCP\Util::writeLog('OCP\Share',
+                'Sharing backend '.$class.' not registered, '.self::$backendTypes[$itemType]['class']
+                .' is already registered for '.$itemType,
+                ILogger::WARN);
+        }
+        return false;
+    }
+
+    /**
+     * Get the items of item type shared with the current user
+     * @param string $itemType
+     * @param int $format (optional) Format type must be defined by the backend
+     * @param mixed $parameters (optional)
+     * @param int $limit Number of items to return (optional) Returns all by default
+     * @param boolean $includeCollections (optional)
+     * @return mixed Return depends on format
+     */
+    public static function getItemsSharedWith($itemType, $format = self::FORMAT_NONE,
+                                                $parameters = null, $limit = -1, $includeCollections = false) {
+        return self::getItems($itemType, null, self::$shareTypeUserAndGroups, \OC_User::getUser(), null, $format,
+            $parameters, $limit, $includeCollections);
+    }
+
+    /**
+     * Get the items of item type shared with a user
+     * @param string $itemType
+     * @param string $user id for which user we want the shares
+     * @param int $format (optional) Format type must be defined by the backend
+     * @param mixed $parameters (optional)
+     * @param int $limit Number of items to return (optional) Returns all by default
+     * @param boolean $includeCollections (optional)
+     * @return mixed Return depends on format
+     */
+    public static function getItemsSharedWithUser($itemType, $user, $format = self::FORMAT_NONE,
+                                                    $parameters = null, $limit = -1, $includeCollections = false) {
+        return self::getItems($itemType, null, self::$shareTypeUserAndGroups, $user, null, $format,
+            $parameters, $limit, $includeCollections);
+    }
+
+    /**
+     * Get the item of item type shared with a given user by source
+     * @param string $itemType
+     * @param string $itemSource
+     * @param string $user User to whom the item was shared
+     * @param string $owner Owner of the share
+     * @param int $shareType only look for a specific share type
+     * @return array Return list of items with file_target, permissions and expiration
+     */
+    public static function getItemSharedWithUser($itemType, $itemSource, $user, $owner = null, $shareType = null) {
+        $shares = array();
+        $fileDependent = false;
+
+        $where = 'WHERE';
+        $fileDependentWhere = '';
+        if ($itemType === 'file' || $itemType === 'folder') {
+            $fileDependent = true;
+            $column = 'file_source';
+            $fileDependentWhere = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` ';
+            $fileDependentWhere .= 'INNER JOIN `*PREFIX*storages` ON `numeric_id` = `*PREFIX*filecache`.`storage` ';
+        } else {
+            $column = 'item_source';
+        }
+
+        $select = self::createSelectStatement(self::FORMAT_NONE, $fileDependent);
+
+        $where .= ' `' . $column . '` = ? AND `item_type` = ? ';
+        $arguments = array($itemSource, $itemType);
+        // for link shares $user === null
+        if ($user !== null) {
+            $where .= ' AND `share_with` = ? ';
+            $arguments[] = $user;
+        }
+
+        if ($shareType !== null) {
+            $where .= ' AND `share_type` = ? ';
+            $arguments[] = $shareType;
+        }
+
+        if ($owner !== null) {
+            $where .= ' AND `uid_owner` = ? ';
+            $arguments[] = $owner;
+        }
+
+        $query = \OC_DB::prepare('SELECT ' . $select . ' FROM `*PREFIX*share` '. $fileDependentWhere . $where);
+
+        $result = \OC_DB::executeAudited($query, $arguments);
+
+        while ($row = $result->fetchRow()) {
+            if ($fileDependent && !self::isFileReachable($row['path'], $row['storage_id'])) {
+                continue;
+            }
+            if ($fileDependent && (int)$row['file_parent'] === -1) {
+                // if it is a mount point we need to get the path from the mount manager
+                $mountManager = \OC\Files\Filesystem::getMountManager();
+                $mountPoint = $mountManager->findByStorageId($row['storage_id']);
+                if (!empty($mountPoint)) {
+                    $path = $mountPoint[0]->getMountPoint();
+                    $path = trim($path, '/');
+                    $path = substr($path, strlen($owner) + 1); //normalize path to 'files/foo.txt`
+                    $row['path'] = $path;
+                } else {
+                    \OC::$server->getLogger()->warning(
+                        'Could not resolve mount point for ' . $row['storage_id'],
+                        ['app' => 'OCP\Share']
+                    );
+                }
+            }
+            $shares[] = $row;
+        }
+
+        //if didn't found a result than let's look for a group share.
+        if(empty($shares) && $user !== null) {
+            $userObject = \OC::$server->getUserManager()->get($user);
+            $groups = [];
+            if ($userObject) {
+                $groups = \OC::$server->getGroupManager()->getUserGroupIds($userObject);
+            }
+
+            if (!empty($groups)) {
+                $where = $fileDependentWhere . ' WHERE `' . $column . '` = ? AND `item_type` = ? AND `share_with` in (?)';
+                $arguments = array($itemSource, $itemType, $groups);
+                $types = array(null, null, IQueryBuilder::PARAM_STR_ARRAY);
+
+                if ($owner !== null) {
+                    $where .= ' AND `uid_owner` = ?';
+                    $arguments[] = $owner;
+                    $types[] = null;
+                }
+
+                // TODO: inject connection, hopefully one day in the future when this
+                // class isn't static anymore...
+                $conn = \OC::$server->getDatabaseConnection();
+                $result = $conn->executeQuery(
+                    'SELECT ' . $select . ' FROM `*PREFIX*share` ' . $where,
+                    $arguments,
+                    $types
+                );
+
+                while ($row = $result->fetch()) {
+                    $shares[] = $row;
+                }
+            }
+        }
+
+        return $shares;
+
+    }
+
+    /**
+     * Get the item of item type shared with the current user by source
+     * @param string $itemType
+     * @param string $itemSource
+     * @param int $format (optional) Format type must be defined by the backend
+     * @param mixed $parameters
+     * @param boolean $includeCollections
+     * @param string $shareWith (optional) define against which user should be checked, default: current user
+     * @return array
+     */
+    public static function getItemSharedWithBySource($itemType, $itemSource, $format = self::FORMAT_NONE,
+                                                        $parameters = null, $includeCollections = false, $shareWith = null) {
+        $shareWith = ($shareWith === null) ? \OC_User::getUser() : $shareWith;
+        return self::getItems($itemType, $itemSource, self::$shareTypeUserAndGroups, $shareWith, null, $format,
+            $parameters, 1, $includeCollections, true);
+    }
+
+    /**
+     * Based on the given token the share information will be returned - password protected shares will be verified
+     * @param string $token
+     * @param bool $checkPasswordProtection
+     * @return array|boolean false will be returned in case the token is unknown or unauthorized
+     */
+    public static function getShareByToken($token, $checkPasswordProtection = true) {
+        $query = \OC_DB::prepare('SELECT * FROM `*PREFIX*share` WHERE `token` = ?', 1);
+        $result = $query->execute(array($token));
+        if ($result === false) {
+            \OCP\Util::writeLog('OCP\Share', \OC_DB::getErrorMessage() . ', token=' . $token, ILogger::ERROR);
+        }
+        $row = $result->fetchRow();
+        if ($row === false) {
+            return false;
+        }
+        if (is_array($row) and self::expireItem($row)) {
+            return false;
+        }
+
+        // password protected shares need to be authenticated
+        if ($checkPasswordProtection && !\OC\Share\Share::checkPasswordProtectedShare($row)) {
+            return false;
+        }
+
+        return $row;
+    }
+
+    /**
+     * Get the shared items of item type owned by the current user
+     * @param string $itemType
+     * @param int $format (optional) Format type must be defined by the backend
+     * @param mixed $parameters
+     * @param int $limit Number of items to return (optional) Returns all by default
+     * @param boolean $includeCollections
+     * @return mixed Return depends on format
+     */
+    public static function getItemsShared($itemType, $format = self::FORMAT_NONE, $parameters = null,
+                                            $limit = -1, $includeCollections = false) {
+        return self::getItems($itemType, null, null, null, \OC_User::getUser(), $format,
+            $parameters, $limit, $includeCollections);
+    }
+
+    /**
+     * Get the shared item of item type owned by the current user
+     * @param string $itemType
+     * @param string $itemSource
+     * @param int $format (optional) Format type must be defined by the backend
+     * @param mixed $parameters
+     * @param boolean $includeCollections
+     * @return mixed Return depends on format
+     */
+    public static function getItemShared($itemType, $itemSource, $format = self::FORMAT_NONE,
+                                            $parameters = null, $includeCollections = false) {
+        return self::getItems($itemType, $itemSource, null, null, \OC_User::getUser(), $format,
+            $parameters, -1, $includeCollections);
+    }
+
+    /**
+     * Share an item with a user, group, or via private link
+     * @param string $itemType
+     * @param string $itemSource
+     * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
+     * @param string $shareWith User or group the item is being shared with
+     * @param int $permissions CRUDS
+     * @param string $itemSourceName
+     * @param \DateTime|null $expirationDate
+     * @param bool|null $passwordChanged
+     * @return boolean|string Returns true on success or false on failure, Returns token on success for links
+     * @throws \OC\HintException when the share type is remote and the shareWith is invalid
+     * @throws \Exception
+     * @since 5.0.0 - parameter $itemSourceName was added in 6.0.0, parameter $expirationDate was added in 7.0.0, parameter $passwordChanged added in 9.0.0
+     * @deprecated 14.0.0 TESTS ONLY - this methods is as of 2018-06 only used by tests
+     */
+    public static function shareItem($itemType, $itemSource, $shareType, $shareWith, $permissions, $itemSourceName = null, \DateTime $expirationDate = null, $passwordChanged = null) {
+
+        $backend = self::getBackend($itemType);
+        $l = \OC::$server->getL10N('lib');
+
+        if ($backend->isShareTypeAllowed($shareType) === false) {
+            $message = 'Sharing %s failed, because the backend does not allow shares from type %i';
+            $message_t = $l->t('Sharing %s failed, because the backend does not allow shares from type %i', array($itemSourceName, $shareType));
+            \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareType), ILogger::DEBUG);
+            throw new \Exception($message_t);
+        }
+
+        $uidOwner = \OC_User::getUser();
+        $shareWithinGroupOnly = self::shareWithGroupMembersOnly();
+
+        if (is_null($itemSourceName)) {
+            $itemSourceName = $itemSource;
+        }
+        $itemName = $itemSourceName;
+
+        // check if file can be shared
+        if ($itemType === 'file' or $itemType === 'folder') {
+            $path = \OC\Files\Filesystem::getPath($itemSource);
+            $itemName = $path;
+
+            // verify that the file exists before we try to share it
+            if (!$path) {
+                $message = 'Sharing %s failed, because the file does not exist';
+                $message_t = $l->t('Sharing %s failed, because the file does not exist', array($itemSourceName));
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+            // verify that the user has share permission
+            if (!\OC\Files\Filesystem::isSharable($path) || \OCP\Util::isSharingDisabledForUser()) {
+                $message = 'You are not allowed to share %s';
+                $message_t = $l->t('You are not allowed to share %s', [$path]);
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $path), ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+        }
+
+        //verify that we don't share a folder which already contains a share mount point
+        if ($itemType === 'folder') {
+            $path = '/' . $uidOwner . '/files' . \OC\Files\Filesystem::getPath($itemSource) . '/';
+            $mountManager = \OC\Files\Filesystem::getMountManager();
+            $mounts = $mountManager->findIn($path);
+            foreach ($mounts as $mount) {
+                if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
+                    $message = 'Sharing "' . $itemSourceName . '" failed, because it contains files shared with you!';
+                    \OCP\Util::writeLog('OCP\Share', $message, ILogger::DEBUG);
+                    throw new \Exception($message);
+                }
+
+            }
+        }
+
+        // single file shares should never have delete permissions
+        if ($itemType === 'file') {
+            $permissions = (int)$permissions & ~\OCP\Constants::PERMISSION_DELETE;
+        }
+
+        //Validate expirationDate
+        if ($expirationDate !== null) {
+            try {
+                /*
 				 * Reuse the validateExpireDate.
 				 * We have to pass time() since the second arg is the time
 				 * the file was shared, since it is not shared yet we just use
 				 * the current time.
 				 */
-				$expirationDate = self::validateExpireDate($expirationDate->format('Y-m-d'), time(), $itemType, $itemSource);
-			} catch (\Exception $e) {
-				throw new \OC\HintException($e->getMessage(), $e->getMessage(), 404);
-			}
-		}
-
-		// Verify share type and sharing conditions are met
-		if ($shareType === self::SHARE_TYPE_USER) {
-			if ($shareWith == $uidOwner) {
-				$message = 'Sharing %s failed, because you can not share with yourself';
-				$message_t = $l->t('Sharing %s failed, because you can not share with yourself', [$itemName]);
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-			if (!\OC::$server->getUserManager()->userExists($shareWith)) {
-				$message = 'Sharing %1$s failed, because the user %2$s does not exist';
-				$message_t = $l->t('Sharing %1$s failed, because the user %2$s does not exist', array($itemSourceName, $shareWith));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-			if ($shareWithinGroupOnly) {
-				$userManager = \OC::$server->getUserManager();
-				$groupManager = \OC::$server->getGroupManager();
-				$userOwner = $userManager->get($uidOwner);
-				$userShareWith = $userManager->get($shareWith);
-				$groupsOwner = [];
-				$groupsShareWith = [];
-				if ($userOwner) {
-					$groupsOwner = $groupManager->getUserGroupIds($userOwner);
-				}
-				if ($userShareWith) {
-					$groupsShareWith = $groupManager->getUserGroupIds($userShareWith);
-				}
-				$inGroup = array_intersect($groupsOwner, $groupsShareWith);
-				if (empty($inGroup)) {
-					$message = 'Sharing %1$s failed, because the user '
-						.'%2$s is not a member of any groups that %3$s is a member of';
-					$message_t = $l->t('Sharing %1$s failed, because the user %2$s is not a member of any groups that %3$s is a member of', array($itemName, $shareWith, $uidOwner));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemName, $shareWith, $uidOwner), ILogger::DEBUG);
-					throw new \Exception($message_t);
-				}
-			}
-			// Check if the item source is already shared with the user, either from the same owner or a different user
-			if ($checkExists = self::getItems($itemType, $itemSource, self::$shareTypeUserAndGroups,
-				$shareWith, null, self::FORMAT_NONE, null, 1, true, true)) {
-				// Only allow the same share to occur again if it is the same
-				// owner and is not a user share, this use case is for increasing
-				// permissions for a specific user
-				if ($checkExists['uid_owner'] != $uidOwner || $checkExists['share_type'] == $shareType) {
-					$message = 'Sharing %1$s failed, because this item is already shared with %2$s';
-					$message_t = $l->t('Sharing %1$s failed, because this item is already shared with %2$s', array($itemSourceName, $shareWith));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
-					throw new \Exception($message_t);
-				}
-			}
-			if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_USER,
-				$shareWith, null, self::FORMAT_NONE, null, 1, true, true)) {
-				// Only allow the same share to occur again if it is the same
-				// owner and is not a user share, this use case is for increasing
-				// permissions for a specific user
-				if ($checkExists['uid_owner'] != $uidOwner || $checkExists['share_type'] == $shareType) {
-					$message = 'Sharing %1$s failed, because this item is already shared with user %2$s';
-					$message_t = $l->t('Sharing %1$s failed, because this item is already shared with user %2$s', array($itemSourceName, $shareWith));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::ERROR);
-					throw new \Exception($message_t);
-				}
-			}
-		} else if ($shareType === self::SHARE_TYPE_GROUP) {
-			if (!\OC::$server->getGroupManager()->groupExists($shareWith)) {
-				$message = 'Sharing %1$s failed, because the group %2$s does not exist';
-				$message_t = $l->t('Sharing %1$s failed, because the group %2$s does not exist', array($itemSourceName, $shareWith));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-			if ($shareWithinGroupOnly) {
-				$group = \OC::$server->getGroupManager()->get($shareWith);
-				$user = \OC::$server->getUserManager()->get($uidOwner);
-				if (!$group || !$user || !$group->inGroup($user)) {
-					$message = 'Sharing %1$s failed, because '
-						. '%2$s is not a member of the group %3$s';
-					$message_t = $l->t('Sharing %1$s failed, because %2$s is not a member of the group %3$s', array($itemSourceName, $uidOwner, $shareWith));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $uidOwner, $shareWith), ILogger::DEBUG);
-					throw new \Exception($message_t);
-				}
-			}
-			// Check if the item source is already shared with the group, either from the same owner or a different user
-			// The check for each user in the group is done inside the put() function
-			if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_GROUP, $shareWith,
-				null, self::FORMAT_NONE, null, 1, true, true)) {
-
-				if ($checkExists['share_with'] === $shareWith && $checkExists['share_type'] === \OCP\Share::SHARE_TYPE_GROUP) {
-					$message = 'Sharing %1$s failed, because this item is already shared with %2$s';
-					$message_t = $l->t('Sharing %1$s failed, because this item is already shared with %2$s', array($itemSourceName, $shareWith));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
-					throw new \Exception($message_t);
-				}
-			}
-			// Convert share with into an array with the keys group and users
-			$group = $shareWith;
-			$shareWith = array();
-			$shareWith['group'] = $group;
-
-
-			$groupObject = \OC::$server->getGroupManager()->get($group);
-			$userIds = [];
-			if ($groupObject) {
-				$users = $groupObject->searchUsers('', -1, 0);
-				foreach ($users as $user) {
-					$userIds[] = $user->getUID();
-				}
-			}
-
-			$shareWith['users'] = array_diff($userIds, array($uidOwner));
-		} else if ($shareType === self::SHARE_TYPE_LINK) {
-			$updateExistingShare = false;
-			if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_allow_links', 'yes') == 'yes') {
-
-				// IF the password is changed via the old ajax endpoint verify it before deleting the old share
-				if ($passwordChanged === true) {
-					self::verifyPassword($shareWith);
-				}
-
-				// when updating a link share
-				// FIXME Don't delete link if we update it
-				if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_LINK, null,
-					$uidOwner, self::FORMAT_NONE, null, 1)) {
-					// remember old token
-					$oldToken = $checkExists['token'];
-					$oldPermissions = $checkExists['permissions'];
-					//delete the old share
-					Helper::delete($checkExists['id']);
-					$updateExistingShare = true;
-				}
-
-				if ($passwordChanged === null) {
-					// Generate hash of password - same method as user passwords
-					if (is_string($shareWith) && $shareWith !== '') {
-						self::verifyPassword($shareWith);
-						$shareWith = \OC::$server->getHasher()->hash($shareWith);
-					} else {
-						// reuse the already set password, but only if we change permissions
-						// otherwise the user disabled the password protection
-						if ($checkExists && (int)$permissions !== (int)$oldPermissions) {
-							$shareWith = $checkExists['share_with'];
-						}
-					}
-				} else {
-					if ($passwordChanged === true) {
-						if (is_string($shareWith) && $shareWith !== '') {
-							self::verifyPassword($shareWith);
-							$shareWith = \OC::$server->getHasher()->hash($shareWith);
-						}
-					} else if ($updateExistingShare) {
-						$shareWith = $checkExists['share_with'];
-					}
-				}
-
-				if (\OCP\Util::isPublicLinkPasswordRequired() && empty($shareWith)) {
-					$message = 'You need to provide a password to create a public link, only protected links are allowed';
-					$message_t = $l->t('You need to provide a password to create a public link, only protected links are allowed');
-					\OCP\Util::writeLog('OCP\Share', $message, ILogger::DEBUG);
-					throw new \Exception($message_t);
-				}
-
-				if ($updateExistingShare === false &&
-					self::isDefaultExpireDateEnabled() &&
-					empty($expirationDate)) {
-					$expirationDate = Helper::calcExpireDate();
-				}
-
-				// Generate token
-				if (isset($oldToken)) {
-					$token = $oldToken;
-				} else {
-					$token = \OC::$server->getSecureRandom()->generate(self::TOKEN_LENGTH,
-						\OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
-					);
-				}
-				$result = self::put($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions,
-					null, $token, $itemSourceName, $expirationDate);
-				if ($result) {
-					return $token;
-				} else {
-					return false;
-				}
-			}
-			$message = 'Sharing %s failed, because sharing with links is not allowed';
-			$message_t = $l->t('Sharing %s failed, because sharing with links is not allowed', array($itemSourceName));
-			\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), ILogger::DEBUG);
-			throw new \Exception($message_t);
-		} else if ($shareType === self::SHARE_TYPE_REMOTE) {
-
-			/*
+                $expirationDate = self::validateExpireDate($expirationDate->format('Y-m-d'), time(), $itemType, $itemSource);
+            } catch (\Exception $e) {
+                throw new \OC\HintException($e->getMessage(), $e->getMessage(), 404);
+            }
+        }
+
+        // Verify share type and sharing conditions are met
+        if ($shareType === self::SHARE_TYPE_USER) {
+            if ($shareWith == $uidOwner) {
+                $message = 'Sharing %s failed, because you can not share with yourself';
+                $message_t = $l->t('Sharing %s failed, because you can not share with yourself', [$itemName]);
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+            if (!\OC::$server->getUserManager()->userExists($shareWith)) {
+                $message = 'Sharing %1$s failed, because the user %2$s does not exist';
+                $message_t = $l->t('Sharing %1$s failed, because the user %2$s does not exist', array($itemSourceName, $shareWith));
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+            if ($shareWithinGroupOnly) {
+                $userManager = \OC::$server->getUserManager();
+                $groupManager = \OC::$server->getGroupManager();
+                $userOwner = $userManager->get($uidOwner);
+                $userShareWith = $userManager->get($shareWith);
+                $groupsOwner = [];
+                $groupsShareWith = [];
+                if ($userOwner) {
+                    $groupsOwner = $groupManager->getUserGroupIds($userOwner);
+                }
+                if ($userShareWith) {
+                    $groupsShareWith = $groupManager->getUserGroupIds($userShareWith);
+                }
+                $inGroup = array_intersect($groupsOwner, $groupsShareWith);
+                if (empty($inGroup)) {
+                    $message = 'Sharing %1$s failed, because the user '
+                        .'%2$s is not a member of any groups that %3$s is a member of';
+                    $message_t = $l->t('Sharing %1$s failed, because the user %2$s is not a member of any groups that %3$s is a member of', array($itemName, $shareWith, $uidOwner));
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemName, $shareWith, $uidOwner), ILogger::DEBUG);
+                    throw new \Exception($message_t);
+                }
+            }
+            // Check if the item source is already shared with the user, either from the same owner or a different user
+            if ($checkExists = self::getItems($itemType, $itemSource, self::$shareTypeUserAndGroups,
+                $shareWith, null, self::FORMAT_NONE, null, 1, true, true)) {
+                // Only allow the same share to occur again if it is the same
+                // owner and is not a user share, this use case is for increasing
+                // permissions for a specific user
+                if ($checkExists['uid_owner'] != $uidOwner || $checkExists['share_type'] == $shareType) {
+                    $message = 'Sharing %1$s failed, because this item is already shared with %2$s';
+                    $message_t = $l->t('Sharing %1$s failed, because this item is already shared with %2$s', array($itemSourceName, $shareWith));
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
+                    throw new \Exception($message_t);
+                }
+            }
+            if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_USER,
+                $shareWith, null, self::FORMAT_NONE, null, 1, true, true)) {
+                // Only allow the same share to occur again if it is the same
+                // owner and is not a user share, this use case is for increasing
+                // permissions for a specific user
+                if ($checkExists['uid_owner'] != $uidOwner || $checkExists['share_type'] == $shareType) {
+                    $message = 'Sharing %1$s failed, because this item is already shared with user %2$s';
+                    $message_t = $l->t('Sharing %1$s failed, because this item is already shared with user %2$s', array($itemSourceName, $shareWith));
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::ERROR);
+                    throw new \Exception($message_t);
+                }
+            }
+        } else if ($shareType === self::SHARE_TYPE_GROUP) {
+            if (!\OC::$server->getGroupManager()->groupExists($shareWith)) {
+                $message = 'Sharing %1$s failed, because the group %2$s does not exist';
+                $message_t = $l->t('Sharing %1$s failed, because the group %2$s does not exist', array($itemSourceName, $shareWith));
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+            if ($shareWithinGroupOnly) {
+                $group = \OC::$server->getGroupManager()->get($shareWith);
+                $user = \OC::$server->getUserManager()->get($uidOwner);
+                if (!$group || !$user || !$group->inGroup($user)) {
+                    $message = 'Sharing %1$s failed, because '
+                        . '%2$s is not a member of the group %3$s';
+                    $message_t = $l->t('Sharing %1$s failed, because %2$s is not a member of the group %3$s', array($itemSourceName, $uidOwner, $shareWith));
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $uidOwner, $shareWith), ILogger::DEBUG);
+                    throw new \Exception($message_t);
+                }
+            }
+            // Check if the item source is already shared with the group, either from the same owner or a different user
+            // The check for each user in the group is done inside the put() function
+            if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_GROUP, $shareWith,
+                null, self::FORMAT_NONE, null, 1, true, true)) {
+
+                if ($checkExists['share_with'] === $shareWith && $checkExists['share_type'] === \OCP\Share::SHARE_TYPE_GROUP) {
+                    $message = 'Sharing %1$s failed, because this item is already shared with %2$s';
+                    $message_t = $l->t('Sharing %1$s failed, because this item is already shared with %2$s', array($itemSourceName, $shareWith));
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
+                    throw new \Exception($message_t);
+                }
+            }
+            // Convert share with into an array with the keys group and users
+            $group = $shareWith;
+            $shareWith = array();
+            $shareWith['group'] = $group;
+
+
+            $groupObject = \OC::$server->getGroupManager()->get($group);
+            $userIds = [];
+            if ($groupObject) {
+                $users = $groupObject->searchUsers('', -1, 0);
+                foreach ($users as $user) {
+                    $userIds[] = $user->getUID();
+                }
+            }
+
+            $shareWith['users'] = array_diff($userIds, array($uidOwner));
+        } else if ($shareType === self::SHARE_TYPE_LINK) {
+            $updateExistingShare = false;
+            if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_allow_links', 'yes') == 'yes') {
+
+                // IF the password is changed via the old ajax endpoint verify it before deleting the old share
+                if ($passwordChanged === true) {
+                    self::verifyPassword($shareWith);
+                }
+
+                // when updating a link share
+                // FIXME Don't delete link if we update it
+                if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_LINK, null,
+                    $uidOwner, self::FORMAT_NONE, null, 1)) {
+                    // remember old token
+                    $oldToken = $checkExists['token'];
+                    $oldPermissions = $checkExists['permissions'];
+                    //delete the old share
+                    Helper::delete($checkExists['id']);
+                    $updateExistingShare = true;
+                }
+
+                if ($passwordChanged === null) {
+                    // Generate hash of password - same method as user passwords
+                    if (is_string($shareWith) && $shareWith !== '') {
+                        self::verifyPassword($shareWith);
+                        $shareWith = \OC::$server->getHasher()->hash($shareWith);
+                    } else {
+                        // reuse the already set password, but only if we change permissions
+                        // otherwise the user disabled the password protection
+                        if ($checkExists && (int)$permissions !== (int)$oldPermissions) {
+                            $shareWith = $checkExists['share_with'];
+                        }
+                    }
+                } else {
+                    if ($passwordChanged === true) {
+                        if (is_string($shareWith) && $shareWith !== '') {
+                            self::verifyPassword($shareWith);
+                            $shareWith = \OC::$server->getHasher()->hash($shareWith);
+                        }
+                    } else if ($updateExistingShare) {
+                        $shareWith = $checkExists['share_with'];
+                    }
+                }
+
+                if (\OCP\Util::isPublicLinkPasswordRequired() && empty($shareWith)) {
+                    $message = 'You need to provide a password to create a public link, only protected links are allowed';
+                    $message_t = $l->t('You need to provide a password to create a public link, only protected links are allowed');
+                    \OCP\Util::writeLog('OCP\Share', $message, ILogger::DEBUG);
+                    throw new \Exception($message_t);
+                }
+
+                if ($updateExistingShare === false &&
+                    self::isDefaultExpireDateEnabled() &&
+                    empty($expirationDate)) {
+                    $expirationDate = Helper::calcExpireDate();
+                }
+
+                // Generate token
+                if (isset($oldToken)) {
+                    $token = $oldToken;
+                } else {
+                    $token = \OC::$server->getSecureRandom()->generate(self::TOKEN_LENGTH,
+                        \OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
+                    );
+                }
+                $result = self::put($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions,
+                    null, $token, $itemSourceName, $expirationDate);
+                if ($result) {
+                    return $token;
+                } else {
+                    return false;
+                }
+            }
+            $message = 'Sharing %s failed, because sharing with links is not allowed';
+            $message_t = $l->t('Sharing %s failed, because sharing with links is not allowed', array($itemSourceName));
+            \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), ILogger::DEBUG);
+            throw new \Exception($message_t);
+        } else if ($shareType === self::SHARE_TYPE_REMOTE) {
+
+            /*
 			 * Check if file is not already shared with the remote user
 			 */
-			if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_REMOTE,
-				$shareWith, $uidOwner, self::FORMAT_NONE, null, 1, true, true)) {
-					$message = 'Sharing %1$s failed, because this item is already shared with %2$s';
-					$message_t = $l->t('Sharing %1$s failed, because this item is already shared with %2$s', array($itemSourceName, $shareWith));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
-					throw new \Exception($message_t);
-			}
-
-			// don't allow federated shares if source and target server are the same
-			list($user, $remote) = Helper::splitUserRemote($shareWith);
-			$currentServer = self::removeProtocolFromUrl(\OC::$server->getURLGenerator()->getAbsoluteURL('/'));
-			$currentUser = \OC::$server->getUserSession()->getUser()->getUID();
-			if (Helper::isSameUserOnSameServer($user, $remote, $currentUser, $currentServer)) {
-				$message = 'Not allowed to create a federated share with the same user.';
-				$message_t = $l->t('Not allowed to create a federated share with the same user');
-				\OCP\Util::writeLog('OCP\Share', $message, ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-
-			$token = \OC::$server->getSecureRandom()->generate(self::TOKEN_LENGTH, \OCP\Security\ISecureRandom::CHAR_LOWER . \OCP\Security\ISecureRandom::CHAR_UPPER .
-				\OCP\Security\ISecureRandom::CHAR_DIGITS);
-
-			$shareWith = $user . '@' . $remote;
-			$shareId = self::put($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, null, $token, $itemSourceName);
-
-			$send = false;
-			if ($shareId) {
-				$send = self::sendRemoteShare($token, $shareWith, $itemSourceName, $shareId, $uidOwner);
-			}
-
-			if ($send === false) {
-				$currentUser = \OC::$server->getUserSession()->getUser()->getUID();
-				self::unshare($itemType, $itemSource, $shareType, $shareWith, $currentUser);
-				$message_t = $l->t('Sharing %1$s failed, could not find %2$s, maybe the server is currently unreachable.', array($itemSourceName, $shareWith));
-				throw new \Exception($message_t);
-			}
-
-			return $send;
-		} else {
-			// Future share types need to include their own conditions
-			$message = 'Share type %1$s is not valid for %2$s';
-			$message_t = $l->t('Share type %1$s is not valid for %2$s', array($shareType, $itemSource));
-			\OCP\Util::writeLog('OCP\Share', sprintf($message, $shareType, $itemSource), ILogger::DEBUG);
-			throw new \Exception($message_t);
-		}
-
-		// Put the item into the database
-		$result = self::put($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, null, null, $itemSourceName, $expirationDate);
-
-		return $result ? true : false;
-	}
-
-	/**
-	 * Unshare an item from a user, group, or delete a private link
-	 * @param string $itemType
-	 * @param string $itemSource
-	 * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
-	 * @param string $shareWith User or group the item is being shared with
-	 * @param string $owner owner of the share, if null the current user is used
-	 * @return boolean true on success or false on failure
-	 */
-	public static function unshare($itemType, $itemSource, $shareType, $shareWith, $owner = null) {
-
-		// check if it is a valid itemType
-		self::getBackend($itemType);
-
-		$items = self::getItemSharedWithUser($itemType, $itemSource, $shareWith, $owner, $shareType);
-
-		$toDelete = array();
-		$newParent = null;
-		$currentUser = $owner ? $owner : \OC_User::getUser();
-		foreach ($items as $item) {
-			// delete the item with the expected share_type and owner
-			if ((int)$item['share_type'] === (int)$shareType && $item['uid_owner'] === $currentUser) {
-				$toDelete = $item;
-				// if there is more then one result we don't have to delete the children
-				// but update their parent. For group shares the new parent should always be
-				// the original group share and not the db entry with the unique name
-			} else if ((int)$item['share_type'] === self::$shareTypeGroupUserUnique) {
-				$newParent = $item['parent'];
-			} else {
-				$newParent = $item['id'];
-			}
-		}
-
-		if (!empty($toDelete)) {
-			self::unshareItem($toDelete, $newParent);
-			return true;
-		}
-		return false;
-	}
-
-	/**
-	 * sent status if users got informed by mail about share
-	 * @param string $itemType
-	 * @param string $itemSource
-	 * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
-	 * @param string $recipient with whom was the file shared
-	 * @param boolean $status
-	 */
-	public static function setSendMailStatus($itemType, $itemSource, $shareType, $recipient, $status) {
-		$status = $status ? 1 : 0;
-
-		$query = \OC_DB::prepare(
-			'UPDATE `*PREFIX*share`
+            if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_REMOTE,
+                $shareWith, $uidOwner, self::FORMAT_NONE, null, 1, true, true)) {
+                    $message = 'Sharing %1$s failed, because this item is already shared with %2$s';
+                    $message_t = $l->t('Sharing %1$s failed, because this item is already shared with %2$s', array($itemSourceName, $shareWith));
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
+                    throw new \Exception($message_t);
+            }
+
+            // don't allow federated shares if source and target server are the same
+            list($user, $remote) = Helper::splitUserRemote($shareWith);
+            $currentServer = self::removeProtocolFromUrl(\OC::$server->getURLGenerator()->getAbsoluteURL('/'));
+            $currentUser = \OC::$server->getUserSession()->getUser()->getUID();
+            if (Helper::isSameUserOnSameServer($user, $remote, $currentUser, $currentServer)) {
+                $message = 'Not allowed to create a federated share with the same user.';
+                $message_t = $l->t('Not allowed to create a federated share with the same user');
+                \OCP\Util::writeLog('OCP\Share', $message, ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+
+            $token = \OC::$server->getSecureRandom()->generate(self::TOKEN_LENGTH, \OCP\Security\ISecureRandom::CHAR_LOWER . \OCP\Security\ISecureRandom::CHAR_UPPER .
+                \OCP\Security\ISecureRandom::CHAR_DIGITS);
+
+            $shareWith = $user . '@' . $remote;
+            $shareId = self::put($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, null, $token, $itemSourceName);
+
+            $send = false;
+            if ($shareId) {
+                $send = self::sendRemoteShare($token, $shareWith, $itemSourceName, $shareId, $uidOwner);
+            }
+
+            if ($send === false) {
+                $currentUser = \OC::$server->getUserSession()->getUser()->getUID();
+                self::unshare($itemType, $itemSource, $shareType, $shareWith, $currentUser);
+                $message_t = $l->t('Sharing %1$s failed, could not find %2$s, maybe the server is currently unreachable.', array($itemSourceName, $shareWith));
+                throw new \Exception($message_t);
+            }
+
+            return $send;
+        } else {
+            // Future share types need to include their own conditions
+            $message = 'Share type %1$s is not valid for %2$s';
+            $message_t = $l->t('Share type %1$s is not valid for %2$s', array($shareType, $itemSource));
+            \OCP\Util::writeLog('OCP\Share', sprintf($message, $shareType, $itemSource), ILogger::DEBUG);
+            throw new \Exception($message_t);
+        }
+
+        // Put the item into the database
+        $result = self::put($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, null, null, $itemSourceName, $expirationDate);
+
+        return $result ? true : false;
+    }
+
+    /**
+     * Unshare an item from a user, group, or delete a private link
+     * @param string $itemType
+     * @param string $itemSource
+     * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
+     * @param string $shareWith User or group the item is being shared with
+     * @param string $owner owner of the share, if null the current user is used
+     * @return boolean true on success or false on failure
+     */
+    public static function unshare($itemType, $itemSource, $shareType, $shareWith, $owner = null) {
+
+        // check if it is a valid itemType
+        self::getBackend($itemType);
+
+        $items = self::getItemSharedWithUser($itemType, $itemSource, $shareWith, $owner, $shareType);
+
+        $toDelete = array();
+        $newParent = null;
+        $currentUser = $owner ? $owner : \OC_User::getUser();
+        foreach ($items as $item) {
+            // delete the item with the expected share_type and owner
+            if ((int)$item['share_type'] === (int)$shareType && $item['uid_owner'] === $currentUser) {
+                $toDelete = $item;
+                // if there is more then one result we don't have to delete the children
+                // but update their parent. For group shares the new parent should always be
+                // the original group share and not the db entry with the unique name
+            } else if ((int)$item['share_type'] === self::$shareTypeGroupUserUnique) {
+                $newParent = $item['parent'];
+            } else {
+                $newParent = $item['id'];
+            }
+        }
+
+        if (!empty($toDelete)) {
+            self::unshareItem($toDelete, $newParent);
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * sent status if users got informed by mail about share
+     * @param string $itemType
+     * @param string $itemSource
+     * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
+     * @param string $recipient with whom was the file shared
+     * @param boolean $status
+     */
+    public static function setSendMailStatus($itemType, $itemSource, $shareType, $recipient, $status) {
+        $status = $status ? 1 : 0;
+
+        $query = \OC_DB::prepare(
+            'UPDATE `*PREFIX*share`
 					SET `mail_send` = ?
 					WHERE `item_type` = ? AND `item_source` = ? AND `share_type` = ? AND `share_with` = ?');
 
-		$result = $query->execute(array($status, $itemType, $itemSource, $shareType, $recipient));
-
-		if($result === false) {
-			\OCP\Util::writeLog('OCP\Share', 'Couldn\'t set send mail status', ILogger::ERROR);
-		}
-	}
-
-	/**
-	 * validate expiration date if it meets all constraints
-	 *
-	 * @param string $expireDate well formatted date string, e.g. "DD-MM-YYYY"
-	 * @param string $shareTime timestamp when the file was shared
-	 * @param string $itemType
-	 * @param string $itemSource
-	 * @return \DateTime validated date
-	 * @throws \Exception when the expire date is in the past or further in the future then the enforced date
-	 */
-	private static function validateExpireDate($expireDate, $shareTime, $itemType, $itemSource) {
-		$l = \OC::$server->getL10N('lib');
-		$date = new \DateTime($expireDate);
-		$today = new \DateTime('now');
-
-		// if the user doesn't provide a share time we need to get it from the database
-		// fall-back mode to keep API stable, because the $shareTime parameter was added later
-		$defaultExpireDateEnforced = \OCP\Util::isDefaultExpireDateEnforced();
-		if ($defaultExpireDateEnforced && $shareTime === null) {
-			$items = self::getItemShared($itemType, $itemSource);
-			$firstItem = reset($items);
-			$shareTime = (int)$firstItem['stime'];
-		}
-
-		if ($defaultExpireDateEnforced) {
-			// initialize max date with share time
-			$maxDate = new \DateTime();
-			$maxDate->setTimestamp($shareTime);
-			$maxDays = \OC::$server->getConfig()->getAppValue('core', 'shareapi_expire_after_n_days', '7');
-			$maxDate->add(new \DateInterval('P' . $maxDays . 'D'));
-			if ($date > $maxDate) {
-				$warning = 'Cannot set expiration date. Shares cannot expire later than ' . $maxDays . ' after they have been shared';
-				$warning_t = $l->t('Cannot set expiration date. Shares cannot expire later than %s after they have been shared', array($maxDays));
-				\OCP\Util::writeLog('OCP\Share', $warning, ILogger::WARN);
-				throw new \Exception($warning_t);
-			}
-		}
-
-		if ($date < $today) {
-			$message = 'Cannot set expiration date. Expiration date is in the past';
-			$message_t = $l->t('Cannot set expiration date. Expiration date is in the past');
-			\OCP\Util::writeLog('OCP\Share', $message, ILogger::WARN);
-			throw new \Exception($message_t);
-		}
-
-		return $date;
-	}
-
-	/**
-	 * Checks whether a share has expired, calls unshareItem() if yes.
-	 * @param array $item Share data (usually database row)
-	 * @return boolean True if item was expired, false otherwise.
-	 */
-	protected static function expireItem(array $item) {
-
-		$result = false;
-
-		// only use default expiration date for link shares
-		if ((int) $item['share_type'] === self::SHARE_TYPE_LINK) {
-
-			// calculate expiration date
-			if (!empty($item['expiration'])) {
-				$userDefinedExpire = new \DateTime($item['expiration']);
-				$expires = $userDefinedExpire->getTimestamp();
-			} else {
-				$expires = null;
-			}
-
-
-			// get default expiration settings
-			$defaultSettings = Helper::getDefaultExpireSetting();
-			$expires = Helper::calculateExpireDate($defaultSettings, $item['stime'], $expires);
-
-
-			if (is_int($expires)) {
-				$now = time();
-				if ($now > $expires) {
-					self::unshareItem($item);
-					$result = true;
-				}
-			}
-		}
-		return $result;
-	}
-
-	/**
-	 * Unshares a share given a share data array
-	 * @param array $item Share data (usually database row)
-	 * @param int $newParent parent ID
-	 * @return null
-	 */
-	protected static function unshareItem(array $item, $newParent = null) {
-
-		$shareType = (int)$item['share_type'];
-		$shareWith = null;
-		if ($shareType !== \OCP\Share::SHARE_TYPE_LINK) {
-			$shareWith = $item['share_with'];
-		}
-
-		// Pass all the vars we have for now, they may be useful
-		$hookParams = array(
-			'id'            => $item['id'],
-			'itemType'      => $item['item_type'],
-			'itemSource'    => $item['item_source'],
-			'shareType'     => $shareType,
-			'shareWith'     => $shareWith,
-			'itemParent'    => $item['parent'],
-			'uidOwner'      => $item['uid_owner'],
-		);
-		if($item['item_type'] === 'file' || $item['item_type'] === 'folder') {
-			$hookParams['fileSource'] = $item['file_source'];
-			$hookParams['fileTarget'] = $item['file_target'];
-		}
-
-		\OC_Hook::emit(\OCP\Share::class, 'pre_unshare', $hookParams);
-		$deletedShares = Helper::delete($item['id'], false, null, $newParent);
-		$deletedShares[] = $hookParams;
-		$hookParams['deletedShares'] = $deletedShares;
-		\OC_Hook::emit(\OCP\Share::class, 'post_unshare', $hookParams);
-		if ((int)$item['share_type'] === \OCP\Share::SHARE_TYPE_REMOTE && \OC::$server->getUserSession()->getUser()) {
-			list(, $remote) = Helper::splitUserRemote($item['share_with']);
-			self::sendRemoteUnshare($remote, $item['id'], $item['token']);
-		}
-	}
-
-	/**
-	 * Get the backend class for the specified item type
-	 * @param string $itemType
-	 * @throws \Exception
-	 * @return \OCP\Share_Backend
-	 */
-	public static function getBackend($itemType) {
-		$l = \OC::$server->getL10N('lib');
-		if (isset(self::$backends[$itemType])) {
-			return self::$backends[$itemType];
-		} else if (isset(self::$backendTypes[$itemType]['class'])) {
-			$class = self::$backendTypes[$itemType]['class'];
-			if (class_exists($class)) {
-				self::$backends[$itemType] = new $class;
-				if (!(self::$backends[$itemType] instanceof \OCP\Share_Backend)) {
-					$message = 'Sharing backend %s must implement the interface OCP\Share_Backend';
-					$message_t = $l->t('Sharing backend %s must implement the interface OCP\Share_Backend', array($class));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $class), ILogger::ERROR);
-					throw new \Exception($message_t);
-				}
-				return self::$backends[$itemType];
-			} else {
-				$message = 'Sharing backend %s not found';
-				$message_t = $l->t('Sharing backend %s not found', array($class));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $class), ILogger::ERROR);
-				throw new \Exception($message_t);
-			}
-		}
-		$message = 'Sharing backend for %s not found';
-		$message_t = $l->t('Sharing backend for %s not found', array($itemType));
-		\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemType), ILogger::ERROR);
-		throw new \Exception($message_t);
-	}
-
-	/**
-	 * Check if resharing is allowed
-	 * @return boolean true if allowed or false
-	 *
-	 * Resharing is allowed by default if not configured
-	 */
-	public static function isResharingAllowed() {
-		if (!isset(self::$isResharingAllowed)) {
-			if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_allow_resharing', 'yes') == 'yes') {
-				self::$isResharingAllowed = true;
-			} else {
-				self::$isResharingAllowed = false;
-			}
-		}
-		return self::$isResharingAllowed;
-	}
-
-	/**
-	 * Get a list of collection item types for the specified item type
-	 * @param string $itemType
-	 * @return array
-	 */
-	private static function getCollectionItemTypes($itemType) {
-		$collectionTypes = array($itemType);
-		foreach (self::$backendTypes as $type => $backend) {
-			if (in_array($backend['collectionOf'], $collectionTypes)) {
-				$collectionTypes[] = $type;
-			}
-		}
-		// TODO Add option for collections to be collection of themselves, only 'folder' does it now...
-		if (isset(self::$backendTypes[$itemType]) && (!self::getBackend($itemType) instanceof \OCP\Share_Backend_Collection || $itemType != 'folder')) {
-			unset($collectionTypes[0]);
-		}
-		// Return array if collections were found or the item type is a
-		// collection itself - collections can be inside collections
-		if (count($collectionTypes) > 0) {
-			return $collectionTypes;
-		}
-		return false;
-	}
-
-	/**
-	 * Get the owners of items shared with a user.
-	 *
-	 * @param string $user The user the items are shared with.
-	 * @param string $type The type of the items shared with the user.
-	 * @param boolean $includeCollections Include collection item types (optional)
-	 * @param boolean $includeOwner include owner in the list of users the item is shared with (optional)
-	 * @return array
-	 */
-	public static function getSharedItemsOwners($user, $type, $includeCollections = false, $includeOwner = false) {
-		// First, we find out if $type is part of a collection (and if that collection is part of
-		// another one and so on).
-		$collectionTypes = array();
-		if (!$includeCollections || !$collectionTypes = self::getCollectionItemTypes($type)) {
-			$collectionTypes[] = $type;
-		}
-
-		// Of these collection types, along with our original $type, we make a
-		// list of the ones for which a sharing backend has been registered.
-		// FIXME: Ideally, we wouldn't need to nest getItemsSharedWith in this loop but just call it
-		// with its $includeCollections parameter set to true. Unfortunately, this fails currently.
-		$allMaybeSharedItems = array();
-		foreach ($collectionTypes as $collectionType) {
-			if (isset(self::$backends[$collectionType])) {
-				$allMaybeSharedItems[$collectionType] = self::getItemsSharedWithUser(
-					$collectionType,
-					$user,
-					self::FORMAT_NONE
-				);
-			}
-		}
-
-		$owners = array();
-		if ($includeOwner) {
-			$owners[] = $user;
-		}
-
-		// We take a look at all shared items of the given $type (or of the collections it is part of)
-		// and find out their owners. Then, we gather the tags for the original $type from all owners,
-		// and return them as elements of a list that look like "Tag (owner)".
-		foreach ($allMaybeSharedItems as $collectionType => $maybeSharedItems) {
-			foreach ($maybeSharedItems as $sharedItem) {
-				if (isset($sharedItem['id'])) { //workaround for https://github.com/owncloud/core/issues/2814
-					$owners[] = $sharedItem['uid_owner'];
-				}
-			}
-		}
-
-		return $owners;
-	}
-
-	/**
-	 * Get shared items from the database
-	 * @param string $itemType
-	 * @param string $item Item source or target (optional)
-	 * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, SHARE_TYPE_LINK, $shareTypeUserAndGroups, or $shareTypeGroupUserUnique
-	 * @param string $shareWith User or group the item is being shared with
-	 * @param string $uidOwner User that is the owner of shared items (optional)
-	 * @param int $format Format to convert items to with formatItems() (optional)
-	 * @param mixed $parameters to pass to formatItems() (optional)
-	 * @param int $limit Number of items to return, -1 to return all matches (optional)
-	 * @param boolean $includeCollections Include collection item types (optional)
-	 * @param boolean $itemShareWithBySource (optional)
-	 * @param boolean $checkExpireDate
-	 * @return array
-	 *
-	 * See public functions getItem(s)... for parameter usage
-	 *
-	 */
-	public static function getItems($itemType, $item = null, $shareType = null, $shareWith = null,
-									$uidOwner = null, $format = self::FORMAT_NONE, $parameters = null, $limit = -1,
-									$includeCollections = false, $itemShareWithBySource = false, $checkExpireDate  = true) {
-		if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_enabled', 'yes') != 'yes') {
-			return array();
-		}
-		$backend = self::getBackend($itemType);
-		$collectionTypes = false;
-		// Get filesystem root to add it to the file target and remove from the
-		// file source, match file_source with the file cache
-		if ($itemType == 'file' || $itemType == 'folder') {
-			if(!is_null($uidOwner)) {
-				$root = \OC\Files\Filesystem::getRoot();
-			} else {
-				$root = '';
-			}
-			$where = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` ';
-			if (!isset($item)) {
-				$where .= ' AND `file_target` IS NOT NULL ';
-			}
-			$where .= 'INNER JOIN `*PREFIX*storages` ON `numeric_id` = `*PREFIX*filecache`.`storage` ';
-			$fileDependent = true;
-			$queryArgs = array();
-		} else {
-			$fileDependent = false;
-			$root = '';
-			$collectionTypes = self::getCollectionItemTypes($itemType);
-			if ($includeCollections && !isset($item) && $collectionTypes) {
-				// If includeCollections is true, find collections of this item type, e.g. a music album contains songs
-				if (!in_array($itemType, $collectionTypes)) {
-					$itemTypes = array_merge(array($itemType), $collectionTypes);
-				} else {
-					$itemTypes = $collectionTypes;
-				}
-				$placeholders = implode(',', array_fill(0, count($itemTypes), '?'));
-				$where = ' WHERE `item_type` IN ('.$placeholders.'))';
-				$queryArgs = $itemTypes;
-			} else {
-				$where = ' WHERE `item_type` = ?';
-				$queryArgs = array($itemType);
-			}
-		}
-		if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_allow_links', 'yes') !== 'yes') {
-			$where .= ' AND `share_type` != ?';
-			$queryArgs[] = self::SHARE_TYPE_LINK;
-		}
-		if (isset($shareType)) {
-			// Include all user and group items
-			if ($shareType == self::$shareTypeUserAndGroups && isset($shareWith)) {
-				$where .= ' AND ((`share_type` in (?, ?) AND `share_with` = ?) ';
-				$queryArgs[] = self::SHARE_TYPE_USER;
-				$queryArgs[] = self::$shareTypeGroupUserUnique;
-				$queryArgs[] = $shareWith;
-
-				$user = \OC::$server->getUserManager()->get($shareWith);
-				$groups = [];
-				if ($user) {
-					$groups = \OC::$server->getGroupManager()->getUserGroupIds($user);
-				}
-				if (!empty($groups)) {
-					$placeholders = implode(',', array_fill(0, count($groups), '?'));
-					$where .= ' OR (`share_type` = ? AND `share_with` IN ('.$placeholders.')) ';
-					$queryArgs[] = self::SHARE_TYPE_GROUP;
-					$queryArgs = array_merge($queryArgs, $groups);
-				}
-				$where .= ')';
-				// Don't include own group shares
-				$where .= ' AND `uid_owner` != ?';
-				$queryArgs[] = $shareWith;
-			} else {
-				$where .= ' AND `share_type` = ?';
-				$queryArgs[] = $shareType;
-				if (isset($shareWith)) {
-					$where .= ' AND `share_with` = ?';
-					$queryArgs[] = $shareWith;
-				}
-			}
-		}
-		if (isset($uidOwner)) {
-			$where .= ' AND `uid_owner` = ?';
-			$queryArgs[] = $uidOwner;
-			if (!isset($shareType)) {
-				// Prevent unique user targets for group shares from being selected
-				$where .= ' AND `share_type` != ?';
-				$queryArgs[] = self::$shareTypeGroupUserUnique;
-			}
-			if ($fileDependent) {
-				$column = 'file_source';
-			} else {
-				$column = 'item_source';
-			}
-		} else {
-			if ($fileDependent) {
-				$column = 'file_target';
-			} else {
-				$column = 'item_target';
-			}
-		}
-		if (isset($item)) {
-			$collectionTypes = self::getCollectionItemTypes($itemType);
-			if ($includeCollections && $collectionTypes && !in_array('folder', $collectionTypes)) {
-				$where .= ' AND (';
-			} else {
-				$where .= ' AND';
-			}
-			// If looking for own shared items, check item_source else check item_target
-			if (isset($uidOwner) || $itemShareWithBySource) {
-				// If item type is a file, file source needs to be checked in case the item was converted
-				if ($fileDependent) {
-					$where .= ' `file_source` = ?';
-					$column = 'file_source';
-				} else {
-					$where .= ' `item_source` = ?';
-					$column = 'item_source';
-				}
-			} else {
-				if ($fileDependent) {
-					$where .= ' `file_target` = ?';
-					$item = \OC\Files\Filesystem::normalizePath($item);
-				} else {
-					$where .= ' `item_target` = ?';
-				}
-			}
-			$queryArgs[] = $item;
-			if ($includeCollections && $collectionTypes && !in_array('folder', $collectionTypes)) {
-				$placeholders = implode(',', array_fill(0, count($collectionTypes), '?'));
-				$where .= ' OR `item_type` IN ('.$placeholders.'))';
-				$queryArgs = array_merge($queryArgs, $collectionTypes);
-			}
-		}
-
-		if ($shareType == self::$shareTypeUserAndGroups && $limit === 1) {
-			// Make sure the unique user target is returned if it exists,
-			// unique targets should follow the group share in the database
-			// If the limit is not 1, the filtering can be done later
-			$where .= ' ORDER BY `*PREFIX*share`.`id` DESC';
-		} else {
-			$where .= ' ORDER BY `*PREFIX*share`.`id` ASC';
-		}
-
-		if ($limit != -1 && !$includeCollections) {
-			// The limit must be at least 3, because filtering needs to be done
-			if ($limit < 3) {
-				$queryLimit = 3;
-			} else {
-				$queryLimit = $limit;
-			}
-		} else {
-			$queryLimit = null;
-		}
-		$select = self::createSelectStatement($format, $fileDependent, $uidOwner);
-		$root = strlen($root);
-		$query = \OC_DB::prepare('SELECT '.$select.' FROM `*PREFIX*share` '.$where, $queryLimit);
-		$result = $query->execute($queryArgs);
-		if ($result === false) {
-			\OCP\Util::writeLog('OCP\Share',
-				\OC_DB::getErrorMessage() . ', select=' . $select . ' where=',
-				ILogger::ERROR);
-		}
-		$items = array();
-		$targets = array();
-		$switchedItems = array();
-		$mounts = array();
-		while ($row = $result->fetchRow()) {
-			self::transformDBResults($row);
-			// Filter out duplicate group shares for users with unique targets
-			if ($fileDependent && !self::isFileReachable($row['path'], $row['storage_id'])) {
-				continue;
-			}
-			if ($row['share_type'] == self::$shareTypeGroupUserUnique && isset($items[$row['parent']])) {
-				$row['share_type'] = self::SHARE_TYPE_GROUP;
-				$row['unique_name'] = true; // remember that we use a unique name for this user
-				$row['share_with'] = $items[$row['parent']]['share_with'];
-				// if the group share was unshared from the user we keep the permission, otherwise
-				// we take the permission from the parent because this is always the up-to-date
-				// permission for the group share
-				if ($row['permissions'] > 0) {
-					$row['permissions'] = $items[$row['parent']]['permissions'];
-				}
-				// Remove the parent group share
-				unset($items[$row['parent']]);
-				if ($row['permissions'] == 0) {
-					continue;
-				}
-			} else if (!isset($uidOwner)) {
-				// Check if the same target already exists
-				if (isset($targets[$row['id']])) {
-					// Check if the same owner shared with the user twice
-					// through a group and user share - this is allowed
-					$id = $targets[$row['id']];
-					if (isset($items[$id]) && $items[$id]['uid_owner'] == $row['uid_owner']) {
-						// Switch to group share type to ensure resharing conditions aren't bypassed
-						if ($items[$id]['share_type'] != self::SHARE_TYPE_GROUP) {
-							$items[$id]['share_type'] = self::SHARE_TYPE_GROUP;
-							$items[$id]['share_with'] = $row['share_with'];
-						}
-						// Switch ids if sharing permission is granted on only
-						// one share to ensure correct parent is used if resharing
-						if (~(int)$items[$id]['permissions'] & \OCP\Constants::PERMISSION_SHARE
-							&& (int)$row['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
-							$items[$row['id']] = $items[$id];
-							$switchedItems[$id] = $row['id'];
-							unset($items[$id]);
-							$id = $row['id'];
-						}
-						$items[$id]['permissions'] |= (int)$row['permissions'];
-
-					}
-					continue;
-				} elseif (!empty($row['parent'])) {
-					$targets[$row['parent']] = $row['id'];
-				}
-			}
-			// Remove root from file source paths if retrieving own shared items
-			if (isset($uidOwner) && isset($row['path'])) {
-				if (isset($row['parent'])) {
-					$query = \OC_DB::prepare('SELECT `file_target` FROM `*PREFIX*share` WHERE `id` = ?');
-					$parentResult = $query->execute(array($row['parent']));
-					if ($result === false) {
-						\OCP\Util::writeLog('OCP\Share', 'Can\'t select parent: ' .
-							\OC_DB::getErrorMessage() . ', select=' . $select . ' where=' . $where,
-							ILogger::ERROR);
-					} else {
-						$parentRow = $parentResult->fetchRow();
-						$tmpPath = $parentRow['file_target'];
-						// find the right position where the row path continues from the target path
-						$pos = strrpos($row['path'], $parentRow['file_target']);
-						$subPath = substr($row['path'], $pos);
-						$splitPath = explode('/', $subPath);
-						foreach (array_slice($splitPath, 2) as $pathPart) {
-							$tmpPath = $tmpPath . '/' . $pathPart;
-						}
-						$row['path'] = $tmpPath;
-					}
-				} else {
-					if (!isset($mounts[$row['storage']])) {
-						$mountPoints = \OC\Files\Filesystem::getMountByNumericId($row['storage']);
-						if (is_array($mountPoints) && !empty($mountPoints)) {
-							$mounts[$row['storage']] = current($mountPoints);
-						}
-					}
-					if (!empty($mounts[$row['storage']])) {
-						$path = $mounts[$row['storage']]->getMountPoint().$row['path'];
-						$relPath = substr($path, $root); // path relative to data/user
-						$row['path'] = rtrim($relPath, '/');
-					}
-				}
-			}
-
-			if($checkExpireDate) {
-				if (self::expireItem($row)) {
-					continue;
-				}
-			}
-			// Check if resharing is allowed, if not remove share permission
-			if (isset($row['permissions']) && (!self::isResharingAllowed() | \OCP\Util::isSharingDisabledForUser())) {
-				$row['permissions'] &= ~\OCP\Constants::PERMISSION_SHARE;
-			}
-			// Add display names to result
-			$row['share_with_displayname'] = $row['share_with'];
-			if ( isset($row['share_with']) && $row['share_with'] != '' &&
-				$row['share_type'] === self::SHARE_TYPE_USER) {
-				$shareWithUser = \OC::$server->getUserManager()->get($row['share_with']);
-				$row['share_with_displayname'] = $shareWithUser === null ? $row['share_with'] : $shareWithUser->getDisplayName();
-			} else if(isset($row['share_with']) && $row['share_with'] != '' &&
-				$row['share_type'] === self::SHARE_TYPE_REMOTE) {
-				$addressBookEntries = \OC::$server->getContactsManager()->search($row['share_with'], ['CLOUD']);
-				foreach ($addressBookEntries as $entry) {
-					foreach ($entry['CLOUD'] as $cloudID) {
-						if ($cloudID === $row['share_with']) {
-							$row['share_with_displayname'] = $entry['FN'];
-						}
-					}
-				}
-			}
-			if ( isset($row['uid_owner']) && $row['uid_owner'] != '') {
-				$ownerUser = \OC::$server->getUserManager()->get($row['uid_owner']);
-				$row['displayname_owner'] = $ownerUser === null ? $row['uid_owner'] : $ownerUser->getDisplayName();
-			}
-
-			if ($row['permissions'] > 0) {
-				$items[$row['id']] = $row;
-			}
-
-		}
-
-		// group items if we are looking for items shared with the current user
-		if (isset($shareWith) && $shareWith === \OCP\User::getUser()) {
-			$items = self::groupItems($items, $itemType);
-		}
-
-		if (!empty($items)) {
-			$collectionItems = array();
-			foreach ($items as &$row) {
-				// Return only the item instead of a 2-dimensional array
-				if ($limit == 1 && $row[$column] == $item && ($row['item_type'] == $itemType || $itemType == 'file')) {
-					if ($format == self::FORMAT_NONE) {
-						return $row;
-					} else {
-						break;
-					}
-				}
-				// Check if this is a collection of the requested item type
-				if ($includeCollections && $collectionTypes && $row['item_type'] !== 'folder' && in_array($row['item_type'], $collectionTypes)) {
-					if (($collectionBackend = self::getBackend($row['item_type']))
-						&& $collectionBackend instanceof \OCP\Share_Backend_Collection) {
-						// Collections can be inside collections, check if the item is a collection
-						if (isset($item) && $row['item_type'] == $itemType && $row[$column] == $item) {
-							$collectionItems[] = $row;
-						} else {
-							$collection = array();
-							$collection['item_type'] = $row['item_type'];
-							if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
-								$collection['path'] = basename($row['path']);
-							}
-							$row['collection'] = $collection;
-							// Fetch all of the children sources
-							$children = $collectionBackend->getChildren($row[$column]);
-							foreach ($children as $child) {
-								$childItem = $row;
-								$childItem['item_type'] = $itemType;
-								if ($row['item_type'] != 'file' && $row['item_type'] != 'folder') {
-									$childItem['item_source'] = $child['source'];
-									$childItem['item_target'] = $child['target'];
-								}
-								if ($backend instanceof \OCP\Share_Backend_File_Dependent) {
-									if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
-										$childItem['file_source'] = $child['source'];
-									} else { // TODO is this really needed if we already know that we use the file backend?
-										$meta = \OC\Files\Filesystem::getFileInfo($child['file_path']);
-										$childItem['file_source'] = $meta['fileid'];
-									}
-									$childItem['file_target'] =
-										\OC\Files\Filesystem::normalizePath($child['file_path']);
-								}
-								if (isset($item)) {
-									if ($childItem[$column] == $item) {
-										// Return only the item instead of a 2-dimensional array
-										if ($limit == 1) {
-											if ($format == self::FORMAT_NONE) {
-												return $childItem;
-											} else {
-												// Unset the items array and break out of both loops
-												$items = array();
-												$items[] = $childItem;
-												break 2;
-											}
-										} else {
-											$collectionItems[] = $childItem;
-										}
-									}
-								} else {
-									$collectionItems[] = $childItem;
-								}
-							}
-						}
-					}
-					// Remove collection item
-					$toRemove = $row['id'];
-					if (array_key_exists($toRemove, $switchedItems)) {
-						$toRemove = $switchedItems[$toRemove];
-					}
-					unset($items[$toRemove]);
-				} elseif ($includeCollections && $collectionTypes && in_array($row['item_type'], $collectionTypes)) {
-					// FIXME: Thats a dirty hack to improve file sharing performance,
-					// see github issue #10588 for more details
-					// Need to find a solution which works for all back-ends
-					$collectionBackend = self::getBackend($row['item_type']);
-					$sharedParents = $collectionBackend->getParents($row['item_source']);
-					foreach ($sharedParents as $parent) {
-						$collectionItems[] = $parent;
-					}
-				}
-			}
-			if (!empty($collectionItems)) {
-				$collectionItems = array_unique($collectionItems, SORT_REGULAR);
-				$items = array_merge($items, $collectionItems);
-			}
-
-			// filter out invalid items, these can appear when subshare entries exist
-			// for a group in which the requested user isn't a member any more
-			$items = array_filter($items, function($item) {
-				return $item['share_type'] !== self::$shareTypeGroupUserUnique;
-			});
-
-			return self::formatResult($items, $column, $backend, $format, $parameters);
-		} elseif ($includeCollections && $collectionTypes && in_array('folder', $collectionTypes)) {
-			// FIXME: Thats a dirty hack to improve file sharing performance,
-			// see github issue #10588 for more details
-			// Need to find a solution which works for all back-ends
-			$collectionItems = array();
-			$collectionBackend = self::getBackend('folder');
-			$sharedParents = $collectionBackend->getParents($item, $shareWith, $uidOwner);
-			foreach ($sharedParents as $parent) {
-				$collectionItems[] = $parent;
-			}
-			if ($limit === 1) {
-				return reset($collectionItems);
-			}
-			return self::formatResult($collectionItems, $column, $backend, $format, $parameters);
-		}
-
-		return array();
-	}
-
-	/**
-	 * group items with link to the same source
-	 *
-	 * @param array $items
-	 * @param string $itemType
-	 * @return array of grouped items
-	 */
-	protected static function groupItems($items, $itemType) {
-
-		$fileSharing = $itemType === 'file' || $itemType === 'folder';
-
-		$result = array();
-
-		foreach ($items as $item) {
-			$grouped = false;
-			foreach ($result as $key => $r) {
-				// for file/folder shares we need to compare file_source, otherwise we compare item_source
-				// only group shares if they already point to the same target, otherwise the file where shared
-				// before grouping of shares was added. In this case we don't group them toi avoid confusions
-				if (( $fileSharing && $item['file_source'] === $r['file_source'] && $item['file_target'] === $r['file_target']) ||
-					(!$fileSharing && $item['item_source'] === $r['item_source'] && $item['item_target'] === $r['item_target'])) {
-					// add the first item to the list of grouped shares
-					if (!isset($result[$key]['grouped'])) {
-						$result[$key]['grouped'][] = $result[$key];
-					}
-					$result[$key]['permissions'] = (int) $item['permissions'] | (int) $r['permissions'];
-					$result[$key]['grouped'][] = $item;
-					$grouped = true;
-					break;
-				}
-			}
-
-			if (!$grouped) {
-				$result[] = $item;
-			}
-
-		}
-
-		return $result;
-	}
-
-	/**
-	 * Put shared item into the database
-	 * @param string $itemType Item type
-	 * @param string $itemSource Item source
-	 * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
-	 * @param string $shareWith User or group the item is being shared with
-	 * @param string $uidOwner User that is the owner of shared item
-	 * @param int $permissions CRUDS permissions
-	 * @param boolean|array $parentFolder Parent folder target (optional)
-	 * @param string $token (optional)
-	 * @param string $itemSourceName name of the source item (optional)
-	 * @param \DateTime $expirationDate (optional)
-	 * @throws \Exception
-	 * @return mixed id of the new share or false
-	 */
-	private static function put($itemType, $itemSource, $shareType, $shareWith, $uidOwner,
-								$permissions, $parentFolder = null, $token = null, $itemSourceName = null, \DateTime $expirationDate = null) {
-
-		$queriesToExecute = array();
-		$suggestedItemTarget = null;
-		$groupFileTarget = $fileTarget = $suggestedFileTarget = $filePath = '';
-		$groupItemTarget = $itemTarget = $fileSource = $parent = 0;
-
-		$result = self::checkReshare($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, $itemSourceName, $expirationDate);
-		if(!empty($result)) {
-			$parent = $result['parent'];
-			$itemSource = $result['itemSource'];
-			$fileSource = $result['fileSource'];
-			$suggestedItemTarget = $result['suggestedItemTarget'];
-			$suggestedFileTarget = $result['suggestedFileTarget'];
-			$filePath = $result['filePath'];
-		}
-
-		$isGroupShare = false;
-		if ($shareType == self::SHARE_TYPE_GROUP) {
-			$isGroupShare = true;
-			if (isset($shareWith['users'])) {
-				$users = $shareWith['users'];
-			} else {
-				$group = \OC::$server->getGroupManager()->get($shareWith['group']);
-				if ($group) {
-					$users = $group->searchUsers('', -1, 0);
-					$userIds = [];
-					foreach ($users as $user) {
-						$userIds[] = $user->getUID();
-					}
-					$users = $userIds;
-				} else {
-					$users = [];
-				}
-			}
-			// remove current user from list
-			if (in_array(\OCP\User::getUser(), $users)) {
-				unset($users[array_search(\OCP\User::getUser(), $users)]);
-			}
-			$groupItemTarget = Helper::generateTarget($itemType, $itemSource,
-				$shareType, $shareWith['group'], $uidOwner, $suggestedItemTarget);
-			$groupFileTarget = Helper::generateTarget($itemType, $itemSource,
-				$shareType, $shareWith['group'], $uidOwner, $filePath);
-
-			// add group share to table and remember the id as parent
-			$queriesToExecute['groupShare'] = array(
-				'itemType'			=> $itemType,
-				'itemSource'		=> $itemSource,
-				'itemTarget'		=> $groupItemTarget,
-				'shareType'			=> $shareType,
-				'shareWith'			=> $shareWith['group'],
-				'uidOwner'			=> $uidOwner,
-				'permissions'		=> $permissions,
-				'shareTime'			=> time(),
-				'fileSource'		=> $fileSource,
-				'fileTarget'		=> $groupFileTarget,
-				'token'				=> $token,
-				'parent'			=> $parent,
-				'expiration'		=> $expirationDate,
-			);
-
-		} else {
-			$users = array($shareWith);
-			$itemTarget = Helper::generateTarget($itemType, $itemSource, $shareType, $shareWith, $uidOwner,
-				$suggestedItemTarget);
-		}
-
-		$run = true;
-		$error = '';
-		$preHookData = array(
-			'itemType' => $itemType,
-			'itemSource' => $itemSource,
-			'shareType' => $shareType,
-			'uidOwner' => $uidOwner,
-			'permissions' => $permissions,
-			'fileSource' => $fileSource,
-			'expiration' => $expirationDate,
-			'token' => $token,
-			'run' => &$run,
-			'error' => &$error
-		);
-
-		$preHookData['itemTarget'] = $isGroupShare ? $groupItemTarget : $itemTarget;
-		$preHookData['shareWith'] = $isGroupShare ? $shareWith['group'] : $shareWith;
-
-		\OC_Hook::emit(\OCP\Share::class, 'pre_shared', $preHookData);
-
-		if ($run === false) {
-			throw new \Exception($error);
-		}
-
-		foreach ($users as $user) {
-			$sourceId = ($itemType === 'file' || $itemType === 'folder') ? $fileSource : $itemSource;
-			$sourceExists = self::getItemSharedWithBySource($itemType, $sourceId, self::FORMAT_NONE, null, true, $user);
-
-			$userShareType = $isGroupShare ? self::$shareTypeGroupUserUnique : $shareType;
-
-			if ($sourceExists && $sourceExists['item_source'] === $itemSource) {
-				$fileTarget = $sourceExists['file_target'];
-				$itemTarget = $sourceExists['item_target'];
-
-				// for group shares we don't need a additional entry if the target is the same
-				if($isGroupShare && $groupItemTarget === $itemTarget) {
-					continue;
-				}
-
-			} elseif(!$sourceExists && !$isGroupShare)  {
-
-				$itemTarget = Helper::generateTarget($itemType, $itemSource, $userShareType, $user,
-					$uidOwner, $suggestedItemTarget, $parent);
-				if (isset($fileSource)) {
-					if ($parentFolder) {
-						if ($parentFolder === true) {
-							$fileTarget = Helper::generateTarget('file', $filePath, $userShareType, $user,
-								$uidOwner, $suggestedFileTarget, $parent);
-							if ($fileTarget != $groupFileTarget) {
-								$parentFolders[$user]['folder'] = $fileTarget;
-							}
-						} else if (isset($parentFolder[$user])) {
-							$fileTarget = $parentFolder[$user]['folder'].$itemSource;
-							$parent = $parentFolder[$user]['id'];
-						}
-					} else {
-						$fileTarget = Helper::generateTarget('file', $filePath, $userShareType,
-							$user, $uidOwner, $suggestedFileTarget, $parent);
-					}
-				} else {
-					$fileTarget = null;
-				}
-
-			} else {
-
-				// group share which doesn't exists until now, check if we need a unique target for this user
-
-				$itemTarget = Helper::generateTarget($itemType, $itemSource, self::SHARE_TYPE_USER, $user,
-					$uidOwner, $suggestedItemTarget, $parent);
-
-				// do we also need a file target
-				if (isset($fileSource)) {
-					$fileTarget = Helper::generateTarget('file', $filePath, self::SHARE_TYPE_USER, $user,
-						$uidOwner, $suggestedFileTarget, $parent);
-				} else {
-					$fileTarget = null;
-				}
-
-				if (($itemTarget === $groupItemTarget) &&
-					(!isset($fileSource) || $fileTarget === $groupFileTarget)) {
-					continue;
-				}
-			}
-
-			$queriesToExecute[] = array(
-				'itemType'			=> $itemType,
-				'itemSource'		=> $itemSource,
-				'itemTarget'		=> $itemTarget,
-				'shareType'			=> $userShareType,
-				'shareWith'			=> $user,
-				'uidOwner'			=> $uidOwner,
-				'permissions'		=> $permissions,
-				'shareTime'			=> time(),
-				'fileSource'		=> $fileSource,
-				'fileTarget'		=> $fileTarget,
-				'token'				=> $token,
-				'parent'			=> $parent,
-				'expiration'		=> $expirationDate,
-			);
-
-		}
-
-		$id = false;
-		if ($isGroupShare) {
-			$id = self::insertShare($queriesToExecute['groupShare']);
-			// Save this id, any extra rows for this group share will need to reference it
-			$parent = \OC::$server->getDatabaseConnection()->lastInsertId('*PREFIX*share');
-			unset($queriesToExecute['groupShare']);
-		}
-
-		foreach ($queriesToExecute as $shareQuery) {
-			$shareQuery['parent'] = $parent;
-			$id = self::insertShare($shareQuery);
-		}
-
-		$postHookData = array(
-			'itemType' => $itemType,
-			'itemSource' => $itemSource,
-			'parent' => $parent,
-			'shareType' => $shareType,
-			'uidOwner' => $uidOwner,
-			'permissions' => $permissions,
-			'fileSource' => $fileSource,
-			'id' => $parent,
-			'token' => $token,
-			'expirationDate' => $expirationDate,
-		);
-
-		$postHookData['shareWith'] = $isGroupShare ? $shareWith['group'] : $shareWith;
-		$postHookData['itemTarget'] = $isGroupShare ? $groupItemTarget : $itemTarget;
-		$postHookData['fileTarget'] = $isGroupShare ? $groupFileTarget : $fileTarget;
-
-		\OC_Hook::emit(\OCP\Share::class, 'post_shared', $postHookData);
-
-
-		return $id ? $id : false;
-	}
-
-	/**
-	 * @param string $itemType
-	 * @param string $itemSource
-	 * @param int $shareType
-	 * @param string $shareWith
-	 * @param string $uidOwner
-	 * @param int $permissions
-	 * @param string|null $itemSourceName
-	 * @param null|\DateTime $expirationDate
-	 */
-	private static function checkReshare($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, $itemSourceName, $expirationDate) {
-		$backend = self::getBackend($itemType);
-
-		$l = \OC::$server->getL10N('lib');
-		$result = array();
-
-		$column = ($itemType === 'file' || $itemType === 'folder') ? 'file_source' : 'item_source';
-
-		$checkReshare = self::getItemSharedWithBySource($itemType, $itemSource, self::FORMAT_NONE, null, true);
-		if ($checkReshare) {
-			// Check if attempting to share back to owner
-			if ($checkReshare['uid_owner'] == $shareWith && $shareType == self::SHARE_TYPE_USER) {
-				$message = 'Sharing %1$s failed, because the user %2$s is the original sharer';
-				$message_t = $l->t('Sharing failed, because the user %s is the original sharer', [$shareWith]);
-
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-		}
-
-		if ($checkReshare && $checkReshare['uid_owner'] !== \OC_User::getUser()) {
-			// Check if share permissions is granted
-			if (self::isResharingAllowed() && (int)$checkReshare['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
-				if (~(int)$checkReshare['permissions'] & $permissions) {
-					$message = 'Sharing %1$s failed, because the permissions exceed permissions granted to %2$s';
-					$message_t = $l->t('Sharing %1$s failed, because the permissions exceed permissions granted to %2$s', array($itemSourceName, $uidOwner));
-
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $uidOwner), ILogger::DEBUG);
-					throw new \Exception($message_t);
-				} else {
-					// TODO Don't check if inside folder
-					$result['parent'] = $checkReshare['id'];
-
-					$result['expirationDate'] = $expirationDate;
-					// $checkReshare['expiration'] could be null and then is always less than any value
-					if(isset($checkReshare['expiration']) && $checkReshare['expiration'] < $expirationDate) {
-						$result['expirationDate'] = $checkReshare['expiration'];
-					}
-
-					// only suggest the same name as new target if it is a reshare of the
-					// same file/folder and not the reshare of a child
-					if ($checkReshare[$column] === $itemSource) {
-						$result['filePath'] = $checkReshare['file_target'];
-						$result['itemSource'] = $checkReshare['item_source'];
-						$result['fileSource'] = $checkReshare['file_source'];
-						$result['suggestedItemTarget'] = $checkReshare['item_target'];
-						$result['suggestedFileTarget'] = $checkReshare['file_target'];
-					} else {
-						$result['filePath'] = ($backend instanceof \OCP\Share_Backend_File_Dependent) ? $backend->getFilePath($itemSource, $uidOwner) : null;
-						$result['suggestedItemTarget'] = null;
-						$result['suggestedFileTarget'] = null;
-						$result['itemSource'] = $itemSource;
-						$result['fileSource'] = ($backend instanceof \OCP\Share_Backend_File_Dependent) ? $itemSource : null;
-					}
-				}
-			} else {
-				$message = 'Sharing %s failed, because resharing is not allowed';
-				$message_t = $l->t('Sharing %s failed, because resharing is not allowed', array($itemSourceName));
-
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-		} else {
-			$result['parent'] = null;
-			$result['suggestedItemTarget'] = null;
-			$result['suggestedFileTarget'] = null;
-			$result['itemSource'] = $itemSource;
-			$result['expirationDate'] = $expirationDate;
-			if (!$backend->isValidSource($itemSource, $uidOwner)) {
-				$message = 'Sharing %1$s failed, because the sharing backend for '
-					.'%2$s could not find its source';
-				$message_t = $l->t('Sharing %1$s failed, because the sharing backend for %2$s could not find its source', array($itemSource, $itemType));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource, $itemType), ILogger::DEBUG);
-				throw new \Exception($message_t);
-			}
-			if ($backend instanceof \OCP\Share_Backend_File_Dependent) {
-				$result['filePath'] = $backend->getFilePath($itemSource, $uidOwner);
-				if ($itemType == 'file' || $itemType == 'folder') {
-					$result['fileSource'] = $itemSource;
-				} else {
-					$meta = \OC\Files\Filesystem::getFileInfo($result['filePath']);
-					$result['fileSource'] = $meta['fileid'];
-				}
-				if ($result['fileSource'] == -1) {
-					$message = 'Sharing %s failed, because the file could not be found in the file cache';
-					$message_t = $l->t('Sharing %s failed, because the file could not be found in the file cache', array($itemSource));
-
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource), ILogger::DEBUG);
-					throw new \Exception($message_t);
-				}
-			} else {
-				$result['filePath'] = null;
-				$result['fileSource'] = null;
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 *
-	 * @param array $shareData
-	 * @return mixed false in case of a failure or the id of the new share
-	 */
-	private static function insertShare(array $shareData) {
-
-		$query = \OC_DB::prepare('INSERT INTO `*PREFIX*share` ('
-			.' `item_type`, `item_source`, `item_target`, `share_type`,'
-			.' `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`,'
-			.' `file_target`, `token`, `parent`, `expiration`) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)');
-		$query->bindValue(1, $shareData['itemType']);
-		$query->bindValue(2, $shareData['itemSource']);
-		$query->bindValue(3, $shareData['itemTarget']);
-		$query->bindValue(4, $shareData['shareType']);
-		$query->bindValue(5, $shareData['shareWith']);
-		$query->bindValue(6, $shareData['uidOwner']);
-		$query->bindValue(7, $shareData['permissions']);
-		$query->bindValue(8, $shareData['shareTime']);
-		$query->bindValue(9, $shareData['fileSource']);
-		$query->bindValue(10, $shareData['fileTarget']);
-		$query->bindValue(11, $shareData['token']);
-		$query->bindValue(12, $shareData['parent']);
-		$query->bindValue(13, $shareData['expiration'], 'datetime');
-		$result = $query->execute();
-
-		$id = false;
-		if ($result) {
-			$id =  \OC::$server->getDatabaseConnection()->lastInsertId('*PREFIX*share');
-		}
-
-		return $id;
-
-	}
-
-	/**
-	 * In case a password protected link is not yet authenticated this function will return false
-	 *
-	 * @param array $linkItem
-	 * @return boolean
-	 */
-	public static function checkPasswordProtectedShare(array $linkItem) {
-		if (!isset($linkItem['share_with'])) {
-			return true;
-		}
-		if (!isset($linkItem['share_type'])) {
-			return true;
-		}
-		if (!isset($linkItem['id'])) {
-			return true;
-		}
-
-		if ($linkItem['share_type'] != \OCP\Share::SHARE_TYPE_LINK) {
-			return true;
-		}
-
-		if ( \OC::$server->getSession()->exists('public_link_authenticated')
-			&& \OC::$server->getSession()->get('public_link_authenticated') === (string)$linkItem['id'] ) {
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * construct select statement
-	 * @param int $format
-	 * @param boolean $fileDependent ist it a file/folder share or a generla share
-	 * @param string $uidOwner
-	 * @return string select statement
-	 */
-	private static function createSelectStatement($format, $fileDependent, $uidOwner = null) {
-		$select = '*';
-		if ($format == self::FORMAT_STATUSES) {
-			if ($fileDependent) {
-				$select = '`*PREFIX*share`.`id`, `*PREFIX*share`.`parent`, `share_type`, `path`, `storage`, '
-					. '`share_with`, `uid_owner` , `file_source`, `stime`, `*PREFIX*share`.`permissions`, '
-					. '`*PREFIX*storages`.`id` AS `storage_id`, `*PREFIX*filecache`.`parent` as `file_parent`, '
-					. '`uid_initiator`';
-			} else {
-				$select = '`id`, `parent`, `share_type`, `share_with`, `uid_owner`, `item_source`, `stime`, `*PREFIX*share`.`permissions`';
-			}
-		} else {
-			if (isset($uidOwner)) {
-				if ($fileDependent) {
-					$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `*PREFIX*share`.`parent`,'
-						. ' `share_type`, `share_with`, `file_source`, `file_target`, `path`, `*PREFIX*share`.`permissions`, `stime`,'
-						. ' `expiration`, `token`, `storage`, `mail_send`, `uid_owner`, '
-						. '`*PREFIX*storages`.`id` AS `storage_id`, `*PREFIX*filecache`.`parent` as `file_parent`';
-				} else {
-					$select = '`id`, `item_type`, `item_source`, `parent`, `share_type`, `share_with`, `*PREFIX*share`.`permissions`,'
-						. ' `stime`, `file_source`, `expiration`, `token`, `mail_send`, `uid_owner`';
-				}
-			} else {
-				if ($fileDependent) {
-					if ($format == \OCA\Files_Sharing\ShareBackend\File::FORMAT_GET_FOLDER_CONTENTS || $format == \OCA\Files_Sharing\ShareBackend\File::FORMAT_FILE_APP_ROOT) {
-						$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `*PREFIX*share`.`parent`, `uid_owner`, '
-							. '`share_type`, `share_with`, `file_source`, `path`, `file_target`, `stime`, '
-							. '`*PREFIX*share`.`permissions`, `expiration`, `storage`, `*PREFIX*filecache`.`parent` as `file_parent`, '
-							. '`name`, `mtime`, `mimetype`, `mimepart`, `size`, `encrypted`, `etag`, `mail_send`';
-					} else {
-						$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `item_target`,'
-							. '`*PREFIX*share`.`parent`, `share_type`, `share_with`, `uid_owner`,'
-							. '`file_source`, `path`, `file_target`, `*PREFIX*share`.`permissions`,'
-						    . '`stime`, `expiration`, `token`, `storage`, `mail_send`,'
-							. '`*PREFIX*storages`.`id` AS `storage_id`, `*PREFIX*filecache`.`parent` as `file_parent`';
-					}
-				}
-			}
-		}
-		return $select;
-	}
-
-
-	/**
-	 * transform db results
-	 * @param array $row result
-	 */
-	private static function transformDBResults(&$row) {
-		if (isset($row['id'])) {
-			$row['id'] = (int) $row['id'];
-		}
-		if (isset($row['share_type'])) {
-			$row['share_type'] = (int) $row['share_type'];
-		}
-		if (isset($row['parent'])) {
-			$row['parent'] = (int) $row['parent'];
-		}
-		if (isset($row['file_parent'])) {
-			$row['file_parent'] = (int) $row['file_parent'];
-		}
-		if (isset($row['file_source'])) {
-			$row['file_source'] = (int) $row['file_source'];
-		}
-		if (isset($row['permissions'])) {
-			$row['permissions'] = (int) $row['permissions'];
-		}
-		if (isset($row['storage'])) {
-			$row['storage'] = (int) $row['storage'];
-		}
-		if (isset($row['stime'])) {
-			$row['stime'] = (int) $row['stime'];
-		}
-		if (isset($row['expiration']) && $row['share_type'] !== self::SHARE_TYPE_LINK) {
-			// discard expiration date for non-link shares, which might have been
-			// set by ancient bugs
-			$row['expiration'] = null;
-		}
-	}
-
-	/**
-	 * format result
-	 * @param array $items result
-	 * @param string $column is it a file share or a general share ('file_target' or 'item_target')
-	 * @param \OCP\Share_Backend $backend sharing backend
-	 * @param int $format
-	 * @param array $parameters additional format parameters
-	 * @return array format result
-	 */
-	private static function formatResult($items, $column, $backend, $format = self::FORMAT_NONE , $parameters = null) {
-		if ($format === self::FORMAT_NONE) {
-			return $items;
-		} else if ($format === self::FORMAT_STATUSES) {
-			$statuses = array();
-			foreach ($items as $item) {
-				if ($item['share_type'] === self::SHARE_TYPE_LINK) {
-					if ($item['uid_initiator'] !== \OC::$server->getUserSession()->getUser()->getUID()) {
-						continue;
-					}
-					$statuses[$item[$column]]['link'] = true;
-				} else if (!isset($statuses[$item[$column]])) {
-					$statuses[$item[$column]]['link'] = false;
-				}
-				if (!empty($item['file_target'])) {
-					$statuses[$item[$column]]['path'] = $item['path'];
-				}
-			}
-			return $statuses;
-		} else {
-			return $backend->formatItems($items, $format, $parameters);
-		}
-	}
-
-	/**
-	 * remove protocol from URL
-	 *
-	 * @param string $url
-	 * @return string
-	 */
-	public static function removeProtocolFromUrl($url) {
-		if (strpos($url, 'https://') === 0) {
-			return substr($url, strlen('https://'));
-		} else if (strpos($url, 'http://') === 0) {
-			return substr($url, strlen('http://'));
-		}
-
-		return $url;
-	}
-
-	/**
-	 * try http post first with https and then with http as a fallback
-	 *
-	 * @param string $remoteDomain
-	 * @param string $urlSuffix
-	 * @param array $fields post parameters
-	 * @return array
-	 */
-	private static function tryHttpPostToShareEndpoint($remoteDomain, $urlSuffix, array $fields) {
-		$protocol = 'https://';
-		$result = [
-			'success' => false,
-			'result' => '',
-		];
-		$try = 0;
-		$discoveryService = \OC::$server->query(\OCP\OCS\IDiscoveryService::class);
-		while ($result['success'] === false && $try < 2) {
-			$federationEndpoints = $discoveryService->discover($protocol . $remoteDomain, 'FEDERATED_SHARING');
-			$endpoint = isset($federationEndpoints['share']) ? $federationEndpoints['share'] : '/ocs/v2.php/cloud/shares';
-			$client = \OC::$server->getHTTPClientService()->newClient();
-
-			try {
-				$response = $client->post(
-					$protocol . $remoteDomain . $endpoint . $urlSuffix . '?format=' . self::RESPONSE_FORMAT,
-					[
-						'body' => $fields,
-						'connect_timeout' => 10,
-					]
-				);
-
-				$result = ['success' => true, 'result' => $response->getBody()];
-			} catch (\Exception $e) {
-				$result = ['success' => false, 'result' => $e->getMessage()];
-			}
-
-			$try++;
-			$protocol = 'http://';
-		}
-
-		return $result;
-	}
-
-	/**
-	 * send server-to-server share to remote server
-	 *
-	 * @param string $token
-	 * @param string $shareWith
-	 * @param string $name
-	 * @param int $remote_id
-	 * @param string $owner
-	 * @return bool
-	 */
-	private static function sendRemoteShare($token, $shareWith, $name, $remote_id, $owner) {
-
-		list($user, $remote) = Helper::splitUserRemote($shareWith);
-
-		if ($user && $remote) {
-			$url = $remote;
-
-			$local = \OC::$server->getURLGenerator()->getAbsoluteURL('/');
-
-			$fields = array(
-				'shareWith' => $user,
-				'token' => $token,
-				'name' => $name,
-				'remoteId' => $remote_id,
-				'owner' => $owner,
-				'remote' => $local,
-			);
-
-			$url = self::removeProtocolFromUrl($url);
-			$result = self::tryHttpPostToShareEndpoint($url, '', $fields);
-			$status = json_decode($result['result'], true);
-
-			if ($result['success'] && ($status['ocs']['meta']['statuscode'] === 100 || $status['ocs']['meta']['statuscode'] === 200)) {
-				\OC_Hook::emit(\OCP\Share::class, 'federated_share_added', ['server' => $remote]);
-				return true;
-			}
-
-		}
-
-		return false;
-	}
-
-	/**
-	 * send server-to-server unshare to remote server
-	 *
-	 * @param string $remote url
-	 * @param int $id share id
-	 * @param string $token
-	 * @return bool
-	 */
-	private static function sendRemoteUnshare($remote, $id, $token) {
-		$url = rtrim($remote, '/');
-		$fields = array('token' => $token, 'format' => 'json');
-		$url = self::removeProtocolFromUrl($url);
-		$result = self::tryHttpPostToShareEndpoint($url, '/'.$id.'/unshare', $fields);
-		$status = json_decode($result['result'], true);
-
-		return ($result['success'] && ($status['ocs']['meta']['statuscode'] === 100 || $status['ocs']['meta']['statuscode'] === 200));
-	}
-
-	/**
-	 * check if user can only share with group members
-	 * @return bool
-	 */
-	public static function shareWithGroupMembersOnly() {
-		$value = \OC::$server->getConfig()->getAppValue('core', 'shareapi_only_share_with_group_members', 'no');
-		return $value === 'yes';
-	}
-
-	/**
-	 * @return bool
-	 */
-	public static function isDefaultExpireDateEnabled() {
-		$defaultExpireDateEnabled = \OC::$server->getConfig()->getAppValue('core', 'shareapi_default_expire_date', 'no');
-		return $defaultExpireDateEnabled === 'yes';
-	}
-
-	/**
-	 * @return int
-	 */
-	public static function getExpireInterval() {
-		return (int)\OC::$server->getConfig()->getAppValue('core', 'shareapi_expire_after_n_days', '7');
-	}
-
-	/**
-	 * Checks whether the given path is reachable for the given owner
-	 *
-	 * @param string $path path relative to files
-	 * @param string $ownerStorageId storage id of the owner
-	 *
-	 * @return boolean true if file is reachable, false otherwise
-	 */
-	private static function isFileReachable($path, $ownerStorageId) {
-		// if outside the home storage, file is always considered reachable
-		if (!(substr($ownerStorageId, 0, 6) === 'home::' ||
-			substr($ownerStorageId, 0, 13) === 'object::user:'
-		)) {
-			return true;
-		}
-
-		// if inside the home storage, the file has to be under "/files/"
-		$path = ltrim($path, '/');
-		if (substr($path, 0, 6) === 'files/') {
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * @param IConfig $config
-	 * @return bool
-	 */
-	public static function enforcePassword(IConfig $config) {
-		$enforcePassword = $config->getAppValue('core', 'shareapi_enforce_links_password', 'no');
-		return $enforcePassword === 'yes';
-	}
-
-	/**
-	 * @param string $password
-	 * @throws \Exception
-	 */
-	private static function verifyPassword($password) {
-
-		$accepted = true;
-		$message = '';
-		\OCP\Util::emitHook('\OC\Share', 'verifyPassword', [
-			'password' => $password,
-			'accepted' => &$accepted,
-			'message' => &$message
-		]);
-
-		if (!$accepted) {
-			throw new \Exception($message);
-		}
-	}
+        $result = $query->execute(array($status, $itemType, $itemSource, $shareType, $recipient));
+
+        if($result === false) {
+            \OCP\Util::writeLog('OCP\Share', 'Couldn\'t set send mail status', ILogger::ERROR);
+        }
+    }
+
+    /**
+     * validate expiration date if it meets all constraints
+     *
+     * @param string $expireDate well formatted date string, e.g. "DD-MM-YYYY"
+     * @param string $shareTime timestamp when the file was shared
+     * @param string $itemType
+     * @param string $itemSource
+     * @return \DateTime validated date
+     * @throws \Exception when the expire date is in the past or further in the future then the enforced date
+     */
+    private static function validateExpireDate($expireDate, $shareTime, $itemType, $itemSource) {
+        $l = \OC::$server->getL10N('lib');
+        $date = new \DateTime($expireDate);
+        $today = new \DateTime('now');
+
+        // if the user doesn't provide a share time we need to get it from the database
+        // fall-back mode to keep API stable, because the $shareTime parameter was added later
+        $defaultExpireDateEnforced = \OCP\Util::isDefaultExpireDateEnforced();
+        if ($defaultExpireDateEnforced && $shareTime === null) {
+            $items = self::getItemShared($itemType, $itemSource);
+            $firstItem = reset($items);
+            $shareTime = (int)$firstItem['stime'];
+        }
+
+        if ($defaultExpireDateEnforced) {
+            // initialize max date with share time
+            $maxDate = new \DateTime();
+            $maxDate->setTimestamp($shareTime);
+            $maxDays = \OC::$server->getConfig()->getAppValue('core', 'shareapi_expire_after_n_days', '7');
+            $maxDate->add(new \DateInterval('P' . $maxDays . 'D'));
+            if ($date > $maxDate) {
+                $warning = 'Cannot set expiration date. Shares cannot expire later than ' . $maxDays . ' after they have been shared';
+                $warning_t = $l->t('Cannot set expiration date. Shares cannot expire later than %s after they have been shared', array($maxDays));
+                \OCP\Util::writeLog('OCP\Share', $warning, ILogger::WARN);
+                throw new \Exception($warning_t);
+            }
+        }
+
+        if ($date < $today) {
+            $message = 'Cannot set expiration date. Expiration date is in the past';
+            $message_t = $l->t('Cannot set expiration date. Expiration date is in the past');
+            \OCP\Util::writeLog('OCP\Share', $message, ILogger::WARN);
+            throw new \Exception($message_t);
+        }
+
+        return $date;
+    }
+
+    /**
+     * Checks whether a share has expired, calls unshareItem() if yes.
+     * @param array $item Share data (usually database row)
+     * @return boolean True if item was expired, false otherwise.
+     */
+    protected static function expireItem(array $item) {
+
+        $result = false;
+
+        // only use default expiration date for link shares
+        if ((int) $item['share_type'] === self::SHARE_TYPE_LINK) {
+
+            // calculate expiration date
+            if (!empty($item['expiration'])) {
+                $userDefinedExpire = new \DateTime($item['expiration']);
+                $expires = $userDefinedExpire->getTimestamp();
+            } else {
+                $expires = null;
+            }
+
+
+            // get default expiration settings
+            $defaultSettings = Helper::getDefaultExpireSetting();
+            $expires = Helper::calculateExpireDate($defaultSettings, $item['stime'], $expires);
+
+
+            if (is_int($expires)) {
+                $now = time();
+                if ($now > $expires) {
+                    self::unshareItem($item);
+                    $result = true;
+                }
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Unshares a share given a share data array
+     * @param array $item Share data (usually database row)
+     * @param int $newParent parent ID
+     * @return null
+     */
+    protected static function unshareItem(array $item, $newParent = null) {
+
+        $shareType = (int)$item['share_type'];
+        $shareWith = null;
+        if ($shareType !== \OCP\Share::SHARE_TYPE_LINK) {
+            $shareWith = $item['share_with'];
+        }
+
+        // Pass all the vars we have for now, they may be useful
+        $hookParams = array(
+            'id'            => $item['id'],
+            'itemType'      => $item['item_type'],
+            'itemSource'    => $item['item_source'],
+            'shareType'     => $shareType,
+            'shareWith'     => $shareWith,
+            'itemParent'    => $item['parent'],
+            'uidOwner'      => $item['uid_owner'],
+        );
+        if($item['item_type'] === 'file' || $item['item_type'] === 'folder') {
+            $hookParams['fileSource'] = $item['file_source'];
+            $hookParams['fileTarget'] = $item['file_target'];
+        }
+
+        \OC_Hook::emit(\OCP\Share::class, 'pre_unshare', $hookParams);
+        $deletedShares = Helper::delete($item['id'], false, null, $newParent);
+        $deletedShares[] = $hookParams;
+        $hookParams['deletedShares'] = $deletedShares;
+        \OC_Hook::emit(\OCP\Share::class, 'post_unshare', $hookParams);
+        if ((int)$item['share_type'] === \OCP\Share::SHARE_TYPE_REMOTE && \OC::$server->getUserSession()->getUser()) {
+            list(, $remote) = Helper::splitUserRemote($item['share_with']);
+            self::sendRemoteUnshare($remote, $item['id'], $item['token']);
+        }
+    }
+
+    /**
+     * Get the backend class for the specified item type
+     * @param string $itemType
+     * @throws \Exception
+     * @return \OCP\Share_Backend
+     */
+    public static function getBackend($itemType) {
+        $l = \OC::$server->getL10N('lib');
+        if (isset(self::$backends[$itemType])) {
+            return self::$backends[$itemType];
+        } else if (isset(self::$backendTypes[$itemType]['class'])) {
+            $class = self::$backendTypes[$itemType]['class'];
+            if (class_exists($class)) {
+                self::$backends[$itemType] = new $class;
+                if (!(self::$backends[$itemType] instanceof \OCP\Share_Backend)) {
+                    $message = 'Sharing backend %s must implement the interface OCP\Share_Backend';
+                    $message_t = $l->t('Sharing backend %s must implement the interface OCP\Share_Backend', array($class));
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $class), ILogger::ERROR);
+                    throw new \Exception($message_t);
+                }
+                return self::$backends[$itemType];
+            } else {
+                $message = 'Sharing backend %s not found';
+                $message_t = $l->t('Sharing backend %s not found', array($class));
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $class), ILogger::ERROR);
+                throw new \Exception($message_t);
+            }
+        }
+        $message = 'Sharing backend for %s not found';
+        $message_t = $l->t('Sharing backend for %s not found', array($itemType));
+        \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemType), ILogger::ERROR);
+        throw new \Exception($message_t);
+    }
+
+    /**
+     * Check if resharing is allowed
+     * @return boolean true if allowed or false
+     *
+     * Resharing is allowed by default if not configured
+     */
+    public static function isResharingAllowed() {
+        if (!isset(self::$isResharingAllowed)) {
+            if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_allow_resharing', 'yes') == 'yes') {
+                self::$isResharingAllowed = true;
+            } else {
+                self::$isResharingAllowed = false;
+            }
+        }
+        return self::$isResharingAllowed;
+    }
+
+    /**
+     * Get a list of collection item types for the specified item type
+     * @param string $itemType
+     * @return array
+     */
+    private static function getCollectionItemTypes($itemType) {
+        $collectionTypes = array($itemType);
+        foreach (self::$backendTypes as $type => $backend) {
+            if (in_array($backend['collectionOf'], $collectionTypes)) {
+                $collectionTypes[] = $type;
+            }
+        }
+        // TODO Add option for collections to be collection of themselves, only 'folder' does it now...
+        if (isset(self::$backendTypes[$itemType]) && (!self::getBackend($itemType) instanceof \OCP\Share_Backend_Collection || $itemType != 'folder')) {
+            unset($collectionTypes[0]);
+        }
+        // Return array if collections were found or the item type is a
+        // collection itself - collections can be inside collections
+        if (count($collectionTypes) > 0) {
+            return $collectionTypes;
+        }
+        return false;
+    }
+
+    /**
+     * Get the owners of items shared with a user.
+     *
+     * @param string $user The user the items are shared with.
+     * @param string $type The type of the items shared with the user.
+     * @param boolean $includeCollections Include collection item types (optional)
+     * @param boolean $includeOwner include owner in the list of users the item is shared with (optional)
+     * @return array
+     */
+    public static function getSharedItemsOwners($user, $type, $includeCollections = false, $includeOwner = false) {
+        // First, we find out if $type is part of a collection (and if that collection is part of
+        // another one and so on).
+        $collectionTypes = array();
+        if (!$includeCollections || !$collectionTypes = self::getCollectionItemTypes($type)) {
+            $collectionTypes[] = $type;
+        }
+
+        // Of these collection types, along with our original $type, we make a
+        // list of the ones for which a sharing backend has been registered.
+        // FIXME: Ideally, we wouldn't need to nest getItemsSharedWith in this loop but just call it
+        // with its $includeCollections parameter set to true. Unfortunately, this fails currently.
+        $allMaybeSharedItems = array();
+        foreach ($collectionTypes as $collectionType) {
+            if (isset(self::$backends[$collectionType])) {
+                $allMaybeSharedItems[$collectionType] = self::getItemsSharedWithUser(
+                    $collectionType,
+                    $user,
+                    self::FORMAT_NONE
+                );
+            }
+        }
+
+        $owners = array();
+        if ($includeOwner) {
+            $owners[] = $user;
+        }
+
+        // We take a look at all shared items of the given $type (or of the collections it is part of)
+        // and find out their owners. Then, we gather the tags for the original $type from all owners,
+        // and return them as elements of a list that look like "Tag (owner)".
+        foreach ($allMaybeSharedItems as $collectionType => $maybeSharedItems) {
+            foreach ($maybeSharedItems as $sharedItem) {
+                if (isset($sharedItem['id'])) { //workaround for https://github.com/owncloud/core/issues/2814
+                    $owners[] = $sharedItem['uid_owner'];
+                }
+            }
+        }
+
+        return $owners;
+    }
+
+    /**
+     * Get shared items from the database
+     * @param string $itemType
+     * @param string $item Item source or target (optional)
+     * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, SHARE_TYPE_LINK, $shareTypeUserAndGroups, or $shareTypeGroupUserUnique
+     * @param string $shareWith User or group the item is being shared with
+     * @param string $uidOwner User that is the owner of shared items (optional)
+     * @param int $format Format to convert items to with formatItems() (optional)
+     * @param mixed $parameters to pass to formatItems() (optional)
+     * @param int $limit Number of items to return, -1 to return all matches (optional)
+     * @param boolean $includeCollections Include collection item types (optional)
+     * @param boolean $itemShareWithBySource (optional)
+     * @param boolean $checkExpireDate
+     * @return array
+     *
+     * See public functions getItem(s)... for parameter usage
+     *
+     */
+    public static function getItems($itemType, $item = null, $shareType = null, $shareWith = null,
+                                    $uidOwner = null, $format = self::FORMAT_NONE, $parameters = null, $limit = -1,
+                                    $includeCollections = false, $itemShareWithBySource = false, $checkExpireDate  = true) {
+        if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_enabled', 'yes') != 'yes') {
+            return array();
+        }
+        $backend = self::getBackend($itemType);
+        $collectionTypes = false;
+        // Get filesystem root to add it to the file target and remove from the
+        // file source, match file_source with the file cache
+        if ($itemType == 'file' || $itemType == 'folder') {
+            if(!is_null($uidOwner)) {
+                $root = \OC\Files\Filesystem::getRoot();
+            } else {
+                $root = '';
+            }
+            $where = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` ';
+            if (!isset($item)) {
+                $where .= ' AND `file_target` IS NOT NULL ';
+            }
+            $where .= 'INNER JOIN `*PREFIX*storages` ON `numeric_id` = `*PREFIX*filecache`.`storage` ';
+            $fileDependent = true;
+            $queryArgs = array();
+        } else {
+            $fileDependent = false;
+            $root = '';
+            $collectionTypes = self::getCollectionItemTypes($itemType);
+            if ($includeCollections && !isset($item) && $collectionTypes) {
+                // If includeCollections is true, find collections of this item type, e.g. a music album contains songs
+                if (!in_array($itemType, $collectionTypes)) {
+                    $itemTypes = array_merge(array($itemType), $collectionTypes);
+                } else {
+                    $itemTypes = $collectionTypes;
+                }
+                $placeholders = implode(',', array_fill(0, count($itemTypes), '?'));
+                $where = ' WHERE `item_type` IN ('.$placeholders.'))';
+                $queryArgs = $itemTypes;
+            } else {
+                $where = ' WHERE `item_type` = ?';
+                $queryArgs = array($itemType);
+            }
+        }
+        if (\OC::$server->getConfig()->getAppValue('core', 'shareapi_allow_links', 'yes') !== 'yes') {
+            $where .= ' AND `share_type` != ?';
+            $queryArgs[] = self::SHARE_TYPE_LINK;
+        }
+        if (isset($shareType)) {
+            // Include all user and group items
+            if ($shareType == self::$shareTypeUserAndGroups && isset($shareWith)) {
+                $where .= ' AND ((`share_type` in (?, ?) AND `share_with` = ?) ';
+                $queryArgs[] = self::SHARE_TYPE_USER;
+                $queryArgs[] = self::$shareTypeGroupUserUnique;
+                $queryArgs[] = $shareWith;
+
+                $user = \OC::$server->getUserManager()->get($shareWith);
+                $groups = [];
+                if ($user) {
+                    $groups = \OC::$server->getGroupManager()->getUserGroupIds($user);
+                }
+                if (!empty($groups)) {
+                    $placeholders = implode(',', array_fill(0, count($groups), '?'));
+                    $where .= ' OR (`share_type` = ? AND `share_with` IN ('.$placeholders.')) ';
+                    $queryArgs[] = self::SHARE_TYPE_GROUP;
+                    $queryArgs = array_merge($queryArgs, $groups);
+                }
+                $where .= ')';
+                // Don't include own group shares
+                $where .= ' AND `uid_owner` != ?';
+                $queryArgs[] = $shareWith;
+            } else {
+                $where .= ' AND `share_type` = ?';
+                $queryArgs[] = $shareType;
+                if (isset($shareWith)) {
+                    $where .= ' AND `share_with` = ?';
+                    $queryArgs[] = $shareWith;
+                }
+            }
+        }
+        if (isset($uidOwner)) {
+            $where .= ' AND `uid_owner` = ?';
+            $queryArgs[] = $uidOwner;
+            if (!isset($shareType)) {
+                // Prevent unique user targets for group shares from being selected
+                $where .= ' AND `share_type` != ?';
+                $queryArgs[] = self::$shareTypeGroupUserUnique;
+            }
+            if ($fileDependent) {
+                $column = 'file_source';
+            } else {
+                $column = 'item_source';
+            }
+        } else {
+            if ($fileDependent) {
+                $column = 'file_target';
+            } else {
+                $column = 'item_target';
+            }
+        }
+        if (isset($item)) {
+            $collectionTypes = self::getCollectionItemTypes($itemType);
+            if ($includeCollections && $collectionTypes && !in_array('folder', $collectionTypes)) {
+                $where .= ' AND (';
+            } else {
+                $where .= ' AND';
+            }
+            // If looking for own shared items, check item_source else check item_target
+            if (isset($uidOwner) || $itemShareWithBySource) {
+                // If item type is a file, file source needs to be checked in case the item was converted
+                if ($fileDependent) {
+                    $where .= ' `file_source` = ?';
+                    $column = 'file_source';
+                } else {
+                    $where .= ' `item_source` = ?';
+                    $column = 'item_source';
+                }
+            } else {
+                if ($fileDependent) {
+                    $where .= ' `file_target` = ?';
+                    $item = \OC\Files\Filesystem::normalizePath($item);
+                } else {
+                    $where .= ' `item_target` = ?';
+                }
+            }
+            $queryArgs[] = $item;
+            if ($includeCollections && $collectionTypes && !in_array('folder', $collectionTypes)) {
+                $placeholders = implode(',', array_fill(0, count($collectionTypes), '?'));
+                $where .= ' OR `item_type` IN ('.$placeholders.'))';
+                $queryArgs = array_merge($queryArgs, $collectionTypes);
+            }
+        }
+
+        if ($shareType == self::$shareTypeUserAndGroups && $limit === 1) {
+            // Make sure the unique user target is returned if it exists,
+            // unique targets should follow the group share in the database
+            // If the limit is not 1, the filtering can be done later
+            $where .= ' ORDER BY `*PREFIX*share`.`id` DESC';
+        } else {
+            $where .= ' ORDER BY `*PREFIX*share`.`id` ASC';
+        }
+
+        if ($limit != -1 && !$includeCollections) {
+            // The limit must be at least 3, because filtering needs to be done
+            if ($limit < 3) {
+                $queryLimit = 3;
+            } else {
+                $queryLimit = $limit;
+            }
+        } else {
+            $queryLimit = null;
+        }
+        $select = self::createSelectStatement($format, $fileDependent, $uidOwner);
+        $root = strlen($root);
+        $query = \OC_DB::prepare('SELECT '.$select.' FROM `*PREFIX*share` '.$where, $queryLimit);
+        $result = $query->execute($queryArgs);
+        if ($result === false) {
+            \OCP\Util::writeLog('OCP\Share',
+                \OC_DB::getErrorMessage() . ', select=' . $select . ' where=',
+                ILogger::ERROR);
+        }
+        $items = array();
+        $targets = array();
+        $switchedItems = array();
+        $mounts = array();
+        while ($row = $result->fetchRow()) {
+            self::transformDBResults($row);
+            // Filter out duplicate group shares for users with unique targets
+            if ($fileDependent && !self::isFileReachable($row['path'], $row['storage_id'])) {
+                continue;
+            }
+            if ($row['share_type'] == self::$shareTypeGroupUserUnique && isset($items[$row['parent']])) {
+                $row['share_type'] = self::SHARE_TYPE_GROUP;
+                $row['unique_name'] = true; // remember that we use a unique name for this user
+                $row['share_with'] = $items[$row['parent']]['share_with'];
+                // if the group share was unshared from the user we keep the permission, otherwise
+                // we take the permission from the parent because this is always the up-to-date
+                // permission for the group share
+                if ($row['permissions'] > 0) {
+                    $row['permissions'] = $items[$row['parent']]['permissions'];
+                }
+                // Remove the parent group share
+                unset($items[$row['parent']]);
+                if ($row['permissions'] == 0) {
+                    continue;
+                }
+            } else if (!isset($uidOwner)) {
+                // Check if the same target already exists
+                if (isset($targets[$row['id']])) {
+                    // Check if the same owner shared with the user twice
+                    // through a group and user share - this is allowed
+                    $id = $targets[$row['id']];
+                    if (isset($items[$id]) && $items[$id]['uid_owner'] == $row['uid_owner']) {
+                        // Switch to group share type to ensure resharing conditions aren't bypassed
+                        if ($items[$id]['share_type'] != self::SHARE_TYPE_GROUP) {
+                            $items[$id]['share_type'] = self::SHARE_TYPE_GROUP;
+                            $items[$id]['share_with'] = $row['share_with'];
+                        }
+                        // Switch ids if sharing permission is granted on only
+                        // one share to ensure correct parent is used if resharing
+                        if (~(int)$items[$id]['permissions'] & \OCP\Constants::PERMISSION_SHARE
+                            && (int)$row['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
+                            $items[$row['id']] = $items[$id];
+                            $switchedItems[$id] = $row['id'];
+                            unset($items[$id]);
+                            $id = $row['id'];
+                        }
+                        $items[$id]['permissions'] |= (int)$row['permissions'];
+
+                    }
+                    continue;
+                } elseif (!empty($row['parent'])) {
+                    $targets[$row['parent']] = $row['id'];
+                }
+            }
+            // Remove root from file source paths if retrieving own shared items
+            if (isset($uidOwner) && isset($row['path'])) {
+                if (isset($row['parent'])) {
+                    $query = \OC_DB::prepare('SELECT `file_target` FROM `*PREFIX*share` WHERE `id` = ?');
+                    $parentResult = $query->execute(array($row['parent']));
+                    if ($result === false) {
+                        \OCP\Util::writeLog('OCP\Share', 'Can\'t select parent: ' .
+                            \OC_DB::getErrorMessage() . ', select=' . $select . ' where=' . $where,
+                            ILogger::ERROR);
+                    } else {
+                        $parentRow = $parentResult->fetchRow();
+                        $tmpPath = $parentRow['file_target'];
+                        // find the right position where the row path continues from the target path
+                        $pos = strrpos($row['path'], $parentRow['file_target']);
+                        $subPath = substr($row['path'], $pos);
+                        $splitPath = explode('/', $subPath);
+                        foreach (array_slice($splitPath, 2) as $pathPart) {
+                            $tmpPath = $tmpPath . '/' . $pathPart;
+                        }
+                        $row['path'] = $tmpPath;
+                    }
+                } else {
+                    if (!isset($mounts[$row['storage']])) {
+                        $mountPoints = \OC\Files\Filesystem::getMountByNumericId($row['storage']);
+                        if (is_array($mountPoints) && !empty($mountPoints)) {
+                            $mounts[$row['storage']] = current($mountPoints);
+                        }
+                    }
+                    if (!empty($mounts[$row['storage']])) {
+                        $path = $mounts[$row['storage']]->getMountPoint().$row['path'];
+                        $relPath = substr($path, $root); // path relative to data/user
+                        $row['path'] = rtrim($relPath, '/');
+                    }
+                }
+            }
+
+            if($checkExpireDate) {
+                if (self::expireItem($row)) {
+                    continue;
+                }
+            }
+            // Check if resharing is allowed, if not remove share permission
+            if (isset($row['permissions']) && (!self::isResharingAllowed() | \OCP\Util::isSharingDisabledForUser())) {
+                $row['permissions'] &= ~\OCP\Constants::PERMISSION_SHARE;
+            }
+            // Add display names to result
+            $row['share_with_displayname'] = $row['share_with'];
+            if ( isset($row['share_with']) && $row['share_with'] != '' &&
+                $row['share_type'] === self::SHARE_TYPE_USER) {
+                $shareWithUser = \OC::$server->getUserManager()->get($row['share_with']);
+                $row['share_with_displayname'] = $shareWithUser === null ? $row['share_with'] : $shareWithUser->getDisplayName();
+            } else if(isset($row['share_with']) && $row['share_with'] != '' &&
+                $row['share_type'] === self::SHARE_TYPE_REMOTE) {
+                $addressBookEntries = \OC::$server->getContactsManager()->search($row['share_with'], ['CLOUD']);
+                foreach ($addressBookEntries as $entry) {
+                    foreach ($entry['CLOUD'] as $cloudID) {
+                        if ($cloudID === $row['share_with']) {
+                            $row['share_with_displayname'] = $entry['FN'];
+                        }
+                    }
+                }
+            }
+            if ( isset($row['uid_owner']) && $row['uid_owner'] != '') {
+                $ownerUser = \OC::$server->getUserManager()->get($row['uid_owner']);
+                $row['displayname_owner'] = $ownerUser === null ? $row['uid_owner'] : $ownerUser->getDisplayName();
+            }
+
+            if ($row['permissions'] > 0) {
+                $items[$row['id']] = $row;
+            }
+
+        }
+
+        // group items if we are looking for items shared with the current user
+        if (isset($shareWith) && $shareWith === \OCP\User::getUser()) {
+            $items = self::groupItems($items, $itemType);
+        }
+
+        if (!empty($items)) {
+            $collectionItems = array();
+            foreach ($items as &$row) {
+                // Return only the item instead of a 2-dimensional array
+                if ($limit == 1 && $row[$column] == $item && ($row['item_type'] == $itemType || $itemType == 'file')) {
+                    if ($format == self::FORMAT_NONE) {
+                        return $row;
+                    } else {
+                        break;
+                    }
+                }
+                // Check if this is a collection of the requested item type
+                if ($includeCollections && $collectionTypes && $row['item_type'] !== 'folder' && in_array($row['item_type'], $collectionTypes)) {
+                    if (($collectionBackend = self::getBackend($row['item_type']))
+                        && $collectionBackend instanceof \OCP\Share_Backend_Collection) {
+                        // Collections can be inside collections, check if the item is a collection
+                        if (isset($item) && $row['item_type'] == $itemType && $row[$column] == $item) {
+                            $collectionItems[] = $row;
+                        } else {
+                            $collection = array();
+                            $collection['item_type'] = $row['item_type'];
+                            if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
+                                $collection['path'] = basename($row['path']);
+                            }
+                            $row['collection'] = $collection;
+                            // Fetch all of the children sources
+                            $children = $collectionBackend->getChildren($row[$column]);
+                            foreach ($children as $child) {
+                                $childItem = $row;
+                                $childItem['item_type'] = $itemType;
+                                if ($row['item_type'] != 'file' && $row['item_type'] != 'folder') {
+                                    $childItem['item_source'] = $child['source'];
+                                    $childItem['item_target'] = $child['target'];
+                                }
+                                if ($backend instanceof \OCP\Share_Backend_File_Dependent) {
+                                    if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
+                                        $childItem['file_source'] = $child['source'];
+                                    } else { // TODO is this really needed if we already know that we use the file backend?
+                                        $meta = \OC\Files\Filesystem::getFileInfo($child['file_path']);
+                                        $childItem['file_source'] = $meta['fileid'];
+                                    }
+                                    $childItem['file_target'] =
+                                        \OC\Files\Filesystem::normalizePath($child['file_path']);
+                                }
+                                if (isset($item)) {
+                                    if ($childItem[$column] == $item) {
+                                        // Return only the item instead of a 2-dimensional array
+                                        if ($limit == 1) {
+                                            if ($format == self::FORMAT_NONE) {
+                                                return $childItem;
+                                            } else {
+                                                // Unset the items array and break out of both loops
+                                                $items = array();
+                                                $items[] = $childItem;
+                                                break 2;
+                                            }
+                                        } else {
+                                            $collectionItems[] = $childItem;
+                                        }
+                                    }
+                                } else {
+                                    $collectionItems[] = $childItem;
+                                }
+                            }
+                        }
+                    }
+                    // Remove collection item
+                    $toRemove = $row['id'];
+                    if (array_key_exists($toRemove, $switchedItems)) {
+                        $toRemove = $switchedItems[$toRemove];
+                    }
+                    unset($items[$toRemove]);
+                } elseif ($includeCollections && $collectionTypes && in_array($row['item_type'], $collectionTypes)) {
+                    // FIXME: Thats a dirty hack to improve file sharing performance,
+                    // see github issue #10588 for more details
+                    // Need to find a solution which works for all back-ends
+                    $collectionBackend = self::getBackend($row['item_type']);
+                    $sharedParents = $collectionBackend->getParents($row['item_source']);
+                    foreach ($sharedParents as $parent) {
+                        $collectionItems[] = $parent;
+                    }
+                }
+            }
+            if (!empty($collectionItems)) {
+                $collectionItems = array_unique($collectionItems, SORT_REGULAR);
+                $items = array_merge($items, $collectionItems);
+            }
+
+            // filter out invalid items, these can appear when subshare entries exist
+            // for a group in which the requested user isn't a member any more
+            $items = array_filter($items, function($item) {
+                return $item['share_type'] !== self::$shareTypeGroupUserUnique;
+            });
+
+            return self::formatResult($items, $column, $backend, $format, $parameters);
+        } elseif ($includeCollections && $collectionTypes && in_array('folder', $collectionTypes)) {
+            // FIXME: Thats a dirty hack to improve file sharing performance,
+            // see github issue #10588 for more details
+            // Need to find a solution which works for all back-ends
+            $collectionItems = array();
+            $collectionBackend = self::getBackend('folder');
+            $sharedParents = $collectionBackend->getParents($item, $shareWith, $uidOwner);
+            foreach ($sharedParents as $parent) {
+                $collectionItems[] = $parent;
+            }
+            if ($limit === 1) {
+                return reset($collectionItems);
+            }
+            return self::formatResult($collectionItems, $column, $backend, $format, $parameters);
+        }
+
+        return array();
+    }
+
+    /**
+     * group items with link to the same source
+     *
+     * @param array $items
+     * @param string $itemType
+     * @return array of grouped items
+     */
+    protected static function groupItems($items, $itemType) {
+
+        $fileSharing = $itemType === 'file' || $itemType === 'folder';
+
+        $result = array();
+
+        foreach ($items as $item) {
+            $grouped = false;
+            foreach ($result as $key => $r) {
+                // for file/folder shares we need to compare file_source, otherwise we compare item_source
+                // only group shares if they already point to the same target, otherwise the file where shared
+                // before grouping of shares was added. In this case we don't group them toi avoid confusions
+                if (( $fileSharing && $item['file_source'] === $r['file_source'] && $item['file_target'] === $r['file_target']) ||
+                    (!$fileSharing && $item['item_source'] === $r['item_source'] && $item['item_target'] === $r['item_target'])) {
+                    // add the first item to the list of grouped shares
+                    if (!isset($result[$key]['grouped'])) {
+                        $result[$key]['grouped'][] = $result[$key];
+                    }
+                    $result[$key]['permissions'] = (int) $item['permissions'] | (int) $r['permissions'];
+                    $result[$key]['grouped'][] = $item;
+                    $grouped = true;
+                    break;
+                }
+            }
+
+            if (!$grouped) {
+                $result[] = $item;
+            }
+
+        }
+
+        return $result;
+    }
+
+    /**
+     * Put shared item into the database
+     * @param string $itemType Item type
+     * @param string $itemSource Item source
+     * @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
+     * @param string $shareWith User or group the item is being shared with
+     * @param string $uidOwner User that is the owner of shared item
+     * @param int $permissions CRUDS permissions
+     * @param boolean|array $parentFolder Parent folder target (optional)
+     * @param string $token (optional)
+     * @param string $itemSourceName name of the source item (optional)
+     * @param \DateTime $expirationDate (optional)
+     * @throws \Exception
+     * @return mixed id of the new share or false
+     */
+    private static function put($itemType, $itemSource, $shareType, $shareWith, $uidOwner,
+                                $permissions, $parentFolder = null, $token = null, $itemSourceName = null, \DateTime $expirationDate = null) {
+
+        $queriesToExecute = array();
+        $suggestedItemTarget = null;
+        $groupFileTarget = $fileTarget = $suggestedFileTarget = $filePath = '';
+        $groupItemTarget = $itemTarget = $fileSource = $parent = 0;
+
+        $result = self::checkReshare($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, $itemSourceName, $expirationDate);
+        if(!empty($result)) {
+            $parent = $result['parent'];
+            $itemSource = $result['itemSource'];
+            $fileSource = $result['fileSource'];
+            $suggestedItemTarget = $result['suggestedItemTarget'];
+            $suggestedFileTarget = $result['suggestedFileTarget'];
+            $filePath = $result['filePath'];
+        }
+
+        $isGroupShare = false;
+        if ($shareType == self::SHARE_TYPE_GROUP) {
+            $isGroupShare = true;
+            if (isset($shareWith['users'])) {
+                $users = $shareWith['users'];
+            } else {
+                $group = \OC::$server->getGroupManager()->get($shareWith['group']);
+                if ($group) {
+                    $users = $group->searchUsers('', -1, 0);
+                    $userIds = [];
+                    foreach ($users as $user) {
+                        $userIds[] = $user->getUID();
+                    }
+                    $users = $userIds;
+                } else {
+                    $users = [];
+                }
+            }
+            // remove current user from list
+            if (in_array(\OCP\User::getUser(), $users)) {
+                unset($users[array_search(\OCP\User::getUser(), $users)]);
+            }
+            $groupItemTarget = Helper::generateTarget($itemType, $itemSource,
+                $shareType, $shareWith['group'], $uidOwner, $suggestedItemTarget);
+            $groupFileTarget = Helper::generateTarget($itemType, $itemSource,
+                $shareType, $shareWith['group'], $uidOwner, $filePath);
+
+            // add group share to table and remember the id as parent
+            $queriesToExecute['groupShare'] = array(
+                'itemType'			=> $itemType,
+                'itemSource'		=> $itemSource,
+                'itemTarget'		=> $groupItemTarget,
+                'shareType'			=> $shareType,
+                'shareWith'			=> $shareWith['group'],
+                'uidOwner'			=> $uidOwner,
+                'permissions'		=> $permissions,
+                'shareTime'			=> time(),
+                'fileSource'		=> $fileSource,
+                'fileTarget'		=> $groupFileTarget,
+                'token'				=> $token,
+                'parent'			=> $parent,
+                'expiration'		=> $expirationDate,
+            );
+
+        } else {
+            $users = array($shareWith);
+            $itemTarget = Helper::generateTarget($itemType, $itemSource, $shareType, $shareWith, $uidOwner,
+                $suggestedItemTarget);
+        }
+
+        $run = true;
+        $error = '';
+        $preHookData = array(
+            'itemType' => $itemType,
+            'itemSource' => $itemSource,
+            'shareType' => $shareType,
+            'uidOwner' => $uidOwner,
+            'permissions' => $permissions,
+            'fileSource' => $fileSource,
+            'expiration' => $expirationDate,
+            'token' => $token,
+            'run' => &$run,
+            'error' => &$error
+        );
+
+        $preHookData['itemTarget'] = $isGroupShare ? $groupItemTarget : $itemTarget;
+        $preHookData['shareWith'] = $isGroupShare ? $shareWith['group'] : $shareWith;
+
+        \OC_Hook::emit(\OCP\Share::class, 'pre_shared', $preHookData);
+
+        if ($run === false) {
+            throw new \Exception($error);
+        }
+
+        foreach ($users as $user) {
+            $sourceId = ($itemType === 'file' || $itemType === 'folder') ? $fileSource : $itemSource;
+            $sourceExists = self::getItemSharedWithBySource($itemType, $sourceId, self::FORMAT_NONE, null, true, $user);
+
+            $userShareType = $isGroupShare ? self::$shareTypeGroupUserUnique : $shareType;
+
+            if ($sourceExists && $sourceExists['item_source'] === $itemSource) {
+                $fileTarget = $sourceExists['file_target'];
+                $itemTarget = $sourceExists['item_target'];
+
+                // for group shares we don't need a additional entry if the target is the same
+                if($isGroupShare && $groupItemTarget === $itemTarget) {
+                    continue;
+                }
+
+            } elseif(!$sourceExists && !$isGroupShare)  {
+
+                $itemTarget = Helper::generateTarget($itemType, $itemSource, $userShareType, $user,
+                    $uidOwner, $suggestedItemTarget, $parent);
+                if (isset($fileSource)) {
+                    if ($parentFolder) {
+                        if ($parentFolder === true) {
+                            $fileTarget = Helper::generateTarget('file', $filePath, $userShareType, $user,
+                                $uidOwner, $suggestedFileTarget, $parent);
+                            if ($fileTarget != $groupFileTarget) {
+                                $parentFolders[$user]['folder'] = $fileTarget;
+                            }
+                        } else if (isset($parentFolder[$user])) {
+                            $fileTarget = $parentFolder[$user]['folder'].$itemSource;
+                            $parent = $parentFolder[$user]['id'];
+                        }
+                    } else {
+                        $fileTarget = Helper::generateTarget('file', $filePath, $userShareType,
+                            $user, $uidOwner, $suggestedFileTarget, $parent);
+                    }
+                } else {
+                    $fileTarget = null;
+                }
+
+            } else {
+
+                // group share which doesn't exists until now, check if we need a unique target for this user
+
+                $itemTarget = Helper::generateTarget($itemType, $itemSource, self::SHARE_TYPE_USER, $user,
+                    $uidOwner, $suggestedItemTarget, $parent);
+
+                // do we also need a file target
+                if (isset($fileSource)) {
+                    $fileTarget = Helper::generateTarget('file', $filePath, self::SHARE_TYPE_USER, $user,
+                        $uidOwner, $suggestedFileTarget, $parent);
+                } else {
+                    $fileTarget = null;
+                }
+
+                if (($itemTarget === $groupItemTarget) &&
+                    (!isset($fileSource) || $fileTarget === $groupFileTarget)) {
+                    continue;
+                }
+            }
+
+            $queriesToExecute[] = array(
+                'itemType'			=> $itemType,
+                'itemSource'		=> $itemSource,
+                'itemTarget'		=> $itemTarget,
+                'shareType'			=> $userShareType,
+                'shareWith'			=> $user,
+                'uidOwner'			=> $uidOwner,
+                'permissions'		=> $permissions,
+                'shareTime'			=> time(),
+                'fileSource'		=> $fileSource,
+                'fileTarget'		=> $fileTarget,
+                'token'				=> $token,
+                'parent'			=> $parent,
+                'expiration'		=> $expirationDate,
+            );
+
+        }
+
+        $id = false;
+        if ($isGroupShare) {
+            $id = self::insertShare($queriesToExecute['groupShare']);
+            // Save this id, any extra rows for this group share will need to reference it
+            $parent = \OC::$server->getDatabaseConnection()->lastInsertId('*PREFIX*share');
+            unset($queriesToExecute['groupShare']);
+        }
+
+        foreach ($queriesToExecute as $shareQuery) {
+            $shareQuery['parent'] = $parent;
+            $id = self::insertShare($shareQuery);
+        }
+
+        $postHookData = array(
+            'itemType' => $itemType,
+            'itemSource' => $itemSource,
+            'parent' => $parent,
+            'shareType' => $shareType,
+            'uidOwner' => $uidOwner,
+            'permissions' => $permissions,
+            'fileSource' => $fileSource,
+            'id' => $parent,
+            'token' => $token,
+            'expirationDate' => $expirationDate,
+        );
+
+        $postHookData['shareWith'] = $isGroupShare ? $shareWith['group'] : $shareWith;
+        $postHookData['itemTarget'] = $isGroupShare ? $groupItemTarget : $itemTarget;
+        $postHookData['fileTarget'] = $isGroupShare ? $groupFileTarget : $fileTarget;
+
+        \OC_Hook::emit(\OCP\Share::class, 'post_shared', $postHookData);
+
+
+        return $id ? $id : false;
+    }
+
+    /**
+     * @param string $itemType
+     * @param string $itemSource
+     * @param int $shareType
+     * @param string $shareWith
+     * @param string $uidOwner
+     * @param int $permissions
+     * @param string|null $itemSourceName
+     * @param null|\DateTime $expirationDate
+     */
+    private static function checkReshare($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, $itemSourceName, $expirationDate) {
+        $backend = self::getBackend($itemType);
+
+        $l = \OC::$server->getL10N('lib');
+        $result = array();
+
+        $column = ($itemType === 'file' || $itemType === 'folder') ? 'file_source' : 'item_source';
+
+        $checkReshare = self::getItemSharedWithBySource($itemType, $itemSource, self::FORMAT_NONE, null, true);
+        if ($checkReshare) {
+            // Check if attempting to share back to owner
+            if ($checkReshare['uid_owner'] == $shareWith && $shareType == self::SHARE_TYPE_USER) {
+                $message = 'Sharing %1$s failed, because the user %2$s is the original sharer';
+                $message_t = $l->t('Sharing failed, because the user %s is the original sharer', [$shareWith]);
+
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+        }
+
+        if ($checkReshare && $checkReshare['uid_owner'] !== \OC_User::getUser()) {
+            // Check if share permissions is granted
+            if (self::isResharingAllowed() && (int)$checkReshare['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
+                if (~(int)$checkReshare['permissions'] & $permissions) {
+                    $message = 'Sharing %1$s failed, because the permissions exceed permissions granted to %2$s';
+                    $message_t = $l->t('Sharing %1$s failed, because the permissions exceed permissions granted to %2$s', array($itemSourceName, $uidOwner));
+
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $uidOwner), ILogger::DEBUG);
+                    throw new \Exception($message_t);
+                } else {
+                    // TODO Don't check if inside folder
+                    $result['parent'] = $checkReshare['id'];
+
+                    $result['expirationDate'] = $expirationDate;
+                    // $checkReshare['expiration'] could be null and then is always less than any value
+                    if(isset($checkReshare['expiration']) && $checkReshare['expiration'] < $expirationDate) {
+                        $result['expirationDate'] = $checkReshare['expiration'];
+                    }
+
+                    // only suggest the same name as new target if it is a reshare of the
+                    // same file/folder and not the reshare of a child
+                    if ($checkReshare[$column] === $itemSource) {
+                        $result['filePath'] = $checkReshare['file_target'];
+                        $result['itemSource'] = $checkReshare['item_source'];
+                        $result['fileSource'] = $checkReshare['file_source'];
+                        $result['suggestedItemTarget'] = $checkReshare['item_target'];
+                        $result['suggestedFileTarget'] = $checkReshare['file_target'];
+                    } else {
+                        $result['filePath'] = ($backend instanceof \OCP\Share_Backend_File_Dependent) ? $backend->getFilePath($itemSource, $uidOwner) : null;
+                        $result['suggestedItemTarget'] = null;
+                        $result['suggestedFileTarget'] = null;
+                        $result['itemSource'] = $itemSource;
+                        $result['fileSource'] = ($backend instanceof \OCP\Share_Backend_File_Dependent) ? $itemSource : null;
+                    }
+                }
+            } else {
+                $message = 'Sharing %s failed, because resharing is not allowed';
+                $message_t = $l->t('Sharing %s failed, because resharing is not allowed', array($itemSourceName));
+
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+        } else {
+            $result['parent'] = null;
+            $result['suggestedItemTarget'] = null;
+            $result['suggestedFileTarget'] = null;
+            $result['itemSource'] = $itemSource;
+            $result['expirationDate'] = $expirationDate;
+            if (!$backend->isValidSource($itemSource, $uidOwner)) {
+                $message = 'Sharing %1$s failed, because the sharing backend for '
+                    .'%2$s could not find its source';
+                $message_t = $l->t('Sharing %1$s failed, because the sharing backend for %2$s could not find its source', array($itemSource, $itemType));
+                \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource, $itemType), ILogger::DEBUG);
+                throw new \Exception($message_t);
+            }
+            if ($backend instanceof \OCP\Share_Backend_File_Dependent) {
+                $result['filePath'] = $backend->getFilePath($itemSource, $uidOwner);
+                if ($itemType == 'file' || $itemType == 'folder') {
+                    $result['fileSource'] = $itemSource;
+                } else {
+                    $meta = \OC\Files\Filesystem::getFileInfo($result['filePath']);
+                    $result['fileSource'] = $meta['fileid'];
+                }
+                if ($result['fileSource'] == -1) {
+                    $message = 'Sharing %s failed, because the file could not be found in the file cache';
+                    $message_t = $l->t('Sharing %s failed, because the file could not be found in the file cache', array($itemSource));
+
+                    \OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource), ILogger::DEBUG);
+                    throw new \Exception($message_t);
+                }
+            } else {
+                $result['filePath'] = null;
+                $result['fileSource'] = null;
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     *
+     * @param array $shareData
+     * @return mixed false in case of a failure or the id of the new share
+     */
+    private static function insertShare(array $shareData) {
+
+        $query = \OC_DB::prepare('INSERT INTO `*PREFIX*share` ('
+            .' `item_type`, `item_source`, `item_target`, `share_type`,'
+            .' `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`,'
+            .' `file_target`, `token`, `parent`, `expiration`) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)');
+        $query->bindValue(1, $shareData['itemType']);
+        $query->bindValue(2, $shareData['itemSource']);
+        $query->bindValue(3, $shareData['itemTarget']);
+        $query->bindValue(4, $shareData['shareType']);
+        $query->bindValue(5, $shareData['shareWith']);
+        $query->bindValue(6, $shareData['uidOwner']);
+        $query->bindValue(7, $shareData['permissions']);
+        $query->bindValue(8, $shareData['shareTime']);
+        $query->bindValue(9, $shareData['fileSource']);
+        $query->bindValue(10, $shareData['fileTarget']);
+        $query->bindValue(11, $shareData['token']);
+        $query->bindValue(12, $shareData['parent']);
+        $query->bindValue(13, $shareData['expiration'], 'datetime');
+        $result = $query->execute();
+
+        $id = false;
+        if ($result) {
+            $id =  \OC::$server->getDatabaseConnection()->lastInsertId('*PREFIX*share');
+        }
+
+        return $id;
+
+    }
+
+    /**
+     * In case a password protected link is not yet authenticated this function will return false
+     *
+     * @param array $linkItem
+     * @return boolean
+     */
+    public static function checkPasswordProtectedShare(array $linkItem) {
+        if (!isset($linkItem['share_with'])) {
+            return true;
+        }
+        if (!isset($linkItem['share_type'])) {
+            return true;
+        }
+        if (!isset($linkItem['id'])) {
+            return true;
+        }
+
+        if ($linkItem['share_type'] != \OCP\Share::SHARE_TYPE_LINK) {
+            return true;
+        }
+
+        if ( \OC::$server->getSession()->exists('public_link_authenticated')
+            && \OC::$server->getSession()->get('public_link_authenticated') === (string)$linkItem['id'] ) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * construct select statement
+     * @param int $format
+     * @param boolean $fileDependent ist it a file/folder share or a generla share
+     * @param string $uidOwner
+     * @return string select statement
+     */
+    private static function createSelectStatement($format, $fileDependent, $uidOwner = null) {
+        $select = '*';
+        if ($format == self::FORMAT_STATUSES) {
+            if ($fileDependent) {
+                $select = '`*PREFIX*share`.`id`, `*PREFIX*share`.`parent`, `share_type`, `path`, `storage`, '
+                    . '`share_with`, `uid_owner` , `file_source`, `stime`, `*PREFIX*share`.`permissions`, '
+                    . '`*PREFIX*storages`.`id` AS `storage_id`, `*PREFIX*filecache`.`parent` as `file_parent`, '
+                    . '`uid_initiator`';
+            } else {
+                $select = '`id`, `parent`, `share_type`, `share_with`, `uid_owner`, `item_source`, `stime`, `*PREFIX*share`.`permissions`';
+            }
+        } else {
+            if (isset($uidOwner)) {
+                if ($fileDependent) {
+                    $select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `*PREFIX*share`.`parent`,'
+                        . ' `share_type`, `share_with`, `file_source`, `file_target`, `path`, `*PREFIX*share`.`permissions`, `stime`,'
+                        . ' `expiration`, `token`, `storage`, `mail_send`, `uid_owner`, '
+                        . '`*PREFIX*storages`.`id` AS `storage_id`, `*PREFIX*filecache`.`parent` as `file_parent`';
+                } else {
+                    $select = '`id`, `item_type`, `item_source`, `parent`, `share_type`, `share_with`, `*PREFIX*share`.`permissions`,'
+                        . ' `stime`, `file_source`, `expiration`, `token`, `mail_send`, `uid_owner`';
+                }
+            } else {
+                if ($fileDependent) {
+                    if ($format == \OCA\Files_Sharing\ShareBackend\File::FORMAT_GET_FOLDER_CONTENTS || $format == \OCA\Files_Sharing\ShareBackend\File::FORMAT_FILE_APP_ROOT) {
+                        $select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `*PREFIX*share`.`parent`, `uid_owner`, '
+                            . '`share_type`, `share_with`, `file_source`, `path`, `file_target`, `stime`, '
+                            . '`*PREFIX*share`.`permissions`, `expiration`, `storage`, `*PREFIX*filecache`.`parent` as `file_parent`, '
+                            . '`name`, `mtime`, `mimetype`, `mimepart`, `size`, `encrypted`, `etag`, `mail_send`';
+                    } else {
+                        $select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `item_target`,'
+                            . '`*PREFIX*share`.`parent`, `share_type`, `share_with`, `uid_owner`,'
+                            . '`file_source`, `path`, `file_target`, `*PREFIX*share`.`permissions`,'
+                            . '`stime`, `expiration`, `token`, `storage`, `mail_send`,'
+                            . '`*PREFIX*storages`.`id` AS `storage_id`, `*PREFIX*filecache`.`parent` as `file_parent`';
+                    }
+                }
+            }
+        }
+        return $select;
+    }
+
+
+    /**
+     * transform db results
+     * @param array $row result
+     */
+    private static function transformDBResults(&$row) {
+        if (isset($row['id'])) {
+            $row['id'] = (int) $row['id'];
+        }
+        if (isset($row['share_type'])) {
+            $row['share_type'] = (int) $row['share_type'];
+        }
+        if (isset($row['parent'])) {
+            $row['parent'] = (int) $row['parent'];
+        }
+        if (isset($row['file_parent'])) {
+            $row['file_parent'] = (int) $row['file_parent'];
+        }
+        if (isset($row['file_source'])) {
+            $row['file_source'] = (int) $row['file_source'];
+        }
+        if (isset($row['permissions'])) {
+            $row['permissions'] = (int) $row['permissions'];
+        }
+        if (isset($row['storage'])) {
+            $row['storage'] = (int) $row['storage'];
+        }
+        if (isset($row['stime'])) {
+            $row['stime'] = (int) $row['stime'];
+        }
+        if (isset($row['expiration']) && $row['share_type'] !== self::SHARE_TYPE_LINK) {
+            // discard expiration date for non-link shares, which might have been
+            // set by ancient bugs
+            $row['expiration'] = null;
+        }
+    }
+
+    /**
+     * format result
+     * @param array $items result
+     * @param string $column is it a file share or a general share ('file_target' or 'item_target')
+     * @param \OCP\Share_Backend $backend sharing backend
+     * @param int $format
+     * @param array $parameters additional format parameters
+     * @return array format result
+     */
+    private static function formatResult($items, $column, $backend, $format = self::FORMAT_NONE , $parameters = null) {
+        if ($format === self::FORMAT_NONE) {
+            return $items;
+        } else if ($format === self::FORMAT_STATUSES) {
+            $statuses = array();
+            foreach ($items as $item) {
+                if ($item['share_type'] === self::SHARE_TYPE_LINK) {
+                    if ($item['uid_initiator'] !== \OC::$server->getUserSession()->getUser()->getUID()) {
+                        continue;
+                    }
+                    $statuses[$item[$column]]['link'] = true;
+                } else if (!isset($statuses[$item[$column]])) {
+                    $statuses[$item[$column]]['link'] = false;
+                }
+                if (!empty($item['file_target'])) {
+                    $statuses[$item[$column]]['path'] = $item['path'];
+                }
+            }
+            return $statuses;
+        } else {
+            return $backend->formatItems($items, $format, $parameters);
+        }
+    }
+
+    /**
+     * remove protocol from URL
+     *
+     * @param string $url
+     * @return string
+     */
+    public static function removeProtocolFromUrl($url) {
+        if (strpos($url, 'https://') === 0) {
+            return substr($url, strlen('https://'));
+        } else if (strpos($url, 'http://') === 0) {
+            return substr($url, strlen('http://'));
+        }
+
+        return $url;
+    }
+
+    /**
+     * try http post first with https and then with http as a fallback
+     *
+     * @param string $remoteDomain
+     * @param string $urlSuffix
+     * @param array $fields post parameters
+     * @return array
+     */
+    private static function tryHttpPostToShareEndpoint($remoteDomain, $urlSuffix, array $fields) {
+        $protocol = 'https://';
+        $result = [
+            'success' => false,
+            'result' => '',
+        ];
+        $try = 0;
+        $discoveryService = \OC::$server->query(\OCP\OCS\IDiscoveryService::class);
+        while ($result['success'] === false && $try < 2) {
+            $federationEndpoints = $discoveryService->discover($protocol . $remoteDomain, 'FEDERATED_SHARING');
+            $endpoint = isset($federationEndpoints['share']) ? $federationEndpoints['share'] : '/ocs/v2.php/cloud/shares';
+            $client = \OC::$server->getHTTPClientService()->newClient();
+
+            try {
+                $response = $client->post(
+                    $protocol . $remoteDomain . $endpoint . $urlSuffix . '?format=' . self::RESPONSE_FORMAT,
+                    [
+                        'body' => $fields,
+                        'connect_timeout' => 10,
+                    ]
+                );
+
+                $result = ['success' => true, 'result' => $response->getBody()];
+            } catch (\Exception $e) {
+                $result = ['success' => false, 'result' => $e->getMessage()];
+            }
+
+            $try++;
+            $protocol = 'http://';
+        }
+
+        return $result;
+    }
+
+    /**
+     * send server-to-server share to remote server
+     *
+     * @param string $token
+     * @param string $shareWith
+     * @param string $name
+     * @param int $remote_id
+     * @param string $owner
+     * @return bool
+     */
+    private static function sendRemoteShare($token, $shareWith, $name, $remote_id, $owner) {
+
+        list($user, $remote) = Helper::splitUserRemote($shareWith);
+
+        if ($user && $remote) {
+            $url = $remote;
+
+            $local = \OC::$server->getURLGenerator()->getAbsoluteURL('/');
+
+            $fields = array(
+                'shareWith' => $user,
+                'token' => $token,
+                'name' => $name,
+                'remoteId' => $remote_id,
+                'owner' => $owner,
+                'remote' => $local,
+            );
+
+            $url = self::removeProtocolFromUrl($url);
+            $result = self::tryHttpPostToShareEndpoint($url, '', $fields);
+            $status = json_decode($result['result'], true);
+
+            if ($result['success'] && ($status['ocs']['meta']['statuscode'] === 100 || $status['ocs']['meta']['statuscode'] === 200)) {
+                \OC_Hook::emit(\OCP\Share::class, 'federated_share_added', ['server' => $remote]);
+                return true;
+            }
+
+        }
+
+        return false;
+    }
+
+    /**
+     * send server-to-server unshare to remote server
+     *
+     * @param string $remote url
+     * @param int $id share id
+     * @param string $token
+     * @return bool
+     */
+    private static function sendRemoteUnshare($remote, $id, $token) {
+        $url = rtrim($remote, '/');
+        $fields = array('token' => $token, 'format' => 'json');
+        $url = self::removeProtocolFromUrl($url);
+        $result = self::tryHttpPostToShareEndpoint($url, '/'.$id.'/unshare', $fields);
+        $status = json_decode($result['result'], true);
+
+        return ($result['success'] && ($status['ocs']['meta']['statuscode'] === 100 || $status['ocs']['meta']['statuscode'] === 200));
+    }
+
+    /**
+     * check if user can only share with group members
+     * @return bool
+     */
+    public static function shareWithGroupMembersOnly() {
+        $value = \OC::$server->getConfig()->getAppValue('core', 'shareapi_only_share_with_group_members', 'no');
+        return $value === 'yes';
+    }
+
+    /**
+     * @return bool
+     */
+    public static function isDefaultExpireDateEnabled() {
+        $defaultExpireDateEnabled = \OC::$server->getConfig()->getAppValue('core', 'shareapi_default_expire_date', 'no');
+        return $defaultExpireDateEnabled === 'yes';
+    }
+
+    /**
+     * @return int
+     */
+    public static function getExpireInterval() {
+        return (int)\OC::$server->getConfig()->getAppValue('core', 'shareapi_expire_after_n_days', '7');
+    }
+
+    /**
+     * Checks whether the given path is reachable for the given owner
+     *
+     * @param string $path path relative to files
+     * @param string $ownerStorageId storage id of the owner
+     *
+     * @return boolean true if file is reachable, false otherwise
+     */
+    private static function isFileReachable($path, $ownerStorageId) {
+        // if outside the home storage, file is always considered reachable
+        if (!(substr($ownerStorageId, 0, 6) === 'home::' ||
+            substr($ownerStorageId, 0, 13) === 'object::user:'
+        )) {
+            return true;
+        }
+
+        // if inside the home storage, the file has to be under "/files/"
+        $path = ltrim($path, '/');
+        if (substr($path, 0, 6) === 'files/') {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param IConfig $config
+     * @return bool
+     */
+    public static function enforcePassword(IConfig $config) {
+        $enforcePassword = $config->getAppValue('core', 'shareapi_enforce_links_password', 'no');
+        return $enforcePassword === 'yes';
+    }
+
+    /**
+     * @param string $password
+     * @throws \Exception
+     */
+    private static function verifyPassword($password) {
+
+        $accepted = true;
+        $message = '';
+        \OCP\Util::emitHook('\OC\Share', 'verifyPassword', [
+            'password' => $password,
+            'accepted' => &$accepted,
+            'message' => &$message
+        ]);
+
+        if (!$accepted) {
+            throw new \Exception($message);
+        }
+    }
 }

Spacing +50 added lines, -50 removed lines

@@ -84,7 +84,7 @@ 
 					'collectionOf' => $collectionOf,
 					'supportedFileExtensions' => $supportedFileExtensions
 				);
-				if(count(self::$backendTypes) === 1) {
+				if (count(self::$backendTypes) === 1) {
 					Util::addScript('core', 'merged-share-backend');
 				}
 				return true;
@@ -154,7 +154,7 @@ 
 
 		$select = self::createSelectStatement(self::FORMAT_NONE, $fileDependent);
 
-		$where .= ' `' . $column . '` = ? AND `item_type` = ? ';
+		$where .= ' `'.$column.'` = ? AND `item_type` = ? ';
 		$arguments = array($itemSource, $itemType);
 		// for link shares $user === null
 		if ($user !== null) {
@@ -172,7 +172,7 @@ 
 			$arguments[] = $owner;
 		}
 
-		$query = \OC_DB::prepare('SELECT ' . $select . ' FROM `*PREFIX*share` '. $fileDependentWhere . $where);
+		$query = \OC_DB::prepare('SELECT '.$select.' FROM `*PREFIX*share` '.$fileDependentWhere.$where);
 
 		$result = \OC_DB::executeAudited($query, $arguments);
 
@@ -180,7 +180,7 @@ 
 			if ($fileDependent && !self::isFileReachable($row['path'], $row['storage_id'])) {
 				continue;
 			}
-			if ($fileDependent && (int)$row['file_parent'] === -1) {
+			if ($fileDependent && (int) $row['file_parent'] === -1) {
 				// if it is a mount point we need to get the path from the mount manager
 				$mountManager = \OC\Files\Filesystem::getMountManager();
 				$mountPoint = $mountManager->findByStorageId($row['storage_id']);
@@ -191,7 +191,7 @@ 
 					$row['path'] = $path;
 				} else {
 					\OC::$server->getLogger()->warning(
-						'Could not resolve mount point for ' . $row['storage_id'],
+						'Could not resolve mount point for '.$row['storage_id'],
 						['app' => 'OCP\Share']
 					);
 				}
@@ -200,7 +200,7 @@ 
 		}
 
 		//if didn't found a result than let's look for a group share.
-		if(empty($shares) && $user !== null) {
+		if (empty($shares) && $user !== null) {
 			$userObject = \OC::$server->getUserManager()->get($user);
 			$groups = [];
 			if ($userObject) {
@@ -208,7 +208,7 @@ 
 			}
 
 			if (!empty($groups)) {
-				$where = $fileDependentWhere . ' WHERE `' . $column . '` = ? AND `item_type` = ? AND `share_with` in (?)';
+				$where = $fileDependentWhere.' WHERE `'.$column.'` = ? AND `item_type` = ? AND `share_with` in (?)';
 				$arguments = array($itemSource, $itemType, $groups);
 				$types = array(null, null, IQueryBuilder::PARAM_STR_ARRAY);
 
@@ -222,7 +222,7 @@ 
 				// class isn't static anymore...
 				$conn = \OC::$server->getDatabaseConnection();
 				$result = $conn->executeQuery(
-					'SELECT ' . $select . ' FROM `*PREFIX*share` ' . $where,
+					'SELECT '.$select.' FROM `*PREFIX*share` '.$where,
 					$arguments,
 					$types
 				);
@@ -264,7 +264,7 @@ 
 		$query = \OC_DB::prepare('SELECT * FROM `*PREFIX*share` WHERE `token` = ?', 1);
 		$result = $query->execute(array($token));
 		if ($result === false) {
-			\OCP\Util::writeLog('OCP\Share', \OC_DB::getErrorMessage() . ', token=' . $token, ILogger::ERROR);
+			\OCP\Util::writeLog('OCP\Share', \OC_DB::getErrorMessage().', token='.$token, ILogger::ERROR);
 		}
 		$row = $result->fetchRow();
 		if ($row === false) {
@@ -371,12 +371,12 @@ 
 
 		//verify that we don't share a folder which already contains a share mount point
 		if ($itemType === 'folder') {
-			$path = '/' . $uidOwner . '/files' . \OC\Files\Filesystem::getPath($itemSource) . '/';
+			$path = '/'.$uidOwner.'/files'.\OC\Files\Filesystem::getPath($itemSource).'/';
 			$mountManager = \OC\Files\Filesystem::getMountManager();
 			$mounts = $mountManager->findIn($path);
 			foreach ($mounts as $mount) {
 				if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
-					$message = 'Sharing "' . $itemSourceName . '" failed, because it contains files shared with you!';
+					$message = 'Sharing "'.$itemSourceName.'" failed, because it contains files shared with you!';
 					\OCP\Util::writeLog('OCP\Share', $message, ILogger::DEBUG);
 					throw new \Exception($message);
 				}
@@ -386,7 +386,7 @@ 
 
 		// single file shares should never have delete permissions
 		if ($itemType === 'file') {
-			$permissions = (int)$permissions & ~\OCP\Constants::PERMISSION_DELETE;
+			$permissions = (int) $permissions & ~\OCP\Constants::PERMISSION_DELETE;
 		}
 
 		//Validate expirationDate
@@ -540,7 +540,7 @@ 
 					} else {
 						// reuse the already set password, but only if we change permissions
 						// otherwise the user disabled the password protection
-						if ($checkExists && (int)$permissions !== (int)$oldPermissions) {
+						if ($checkExists && (int) $permissions !== (int) $oldPermissions) {
 							$shareWith = $checkExists['share_with'];
 						}
 					}
@@ -612,10 +612,10 @@ 
 				throw new \Exception($message_t);
 			}
 
-			$token = \OC::$server->getSecureRandom()->generate(self::TOKEN_LENGTH, \OCP\Security\ISecureRandom::CHAR_LOWER . \OCP\Security\ISecureRandom::CHAR_UPPER .
+			$token = \OC::$server->getSecureRandom()->generate(self::TOKEN_LENGTH, \OCP\Security\ISecureRandom::CHAR_LOWER.\OCP\Security\ISecureRandom::CHAR_UPPER.
 				\OCP\Security\ISecureRandom::CHAR_DIGITS);
 
-			$shareWith = $user . '@' . $remote;
+			$shareWith = $user.'@'.$remote;
 			$shareId = self::put($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, null, $token, $itemSourceName);
 
 			$send = false;
@@ -666,12 +666,12 @@ 
 		$currentUser = $owner ? $owner : \OC_User::getUser();
 		foreach ($items as $item) {
 			// delete the item with the expected share_type and owner
-			if ((int)$item['share_type'] === (int)$shareType && $item['uid_owner'] === $currentUser) {
+			if ((int) $item['share_type'] === (int) $shareType && $item['uid_owner'] === $currentUser) {
 				$toDelete = $item;
 				// if there is more then one result we don't have to delete the children
 				// but update their parent. For group shares the new parent should always be
 				// the original group share and not the db entry with the unique name
-			} else if ((int)$item['share_type'] === self::$shareTypeGroupUserUnique) {
+			} else if ((int) $item['share_type'] === self::$shareTypeGroupUserUnique) {
 				$newParent = $item['parent'];
 			} else {
 				$newParent = $item['id'];
@@ -703,7 +703,7 @@ 
 
 		$result = $query->execute(array($status, $itemType, $itemSource, $shareType, $recipient));
 
-		if($result === false) {
+		if ($result === false) {
 			\OCP\Util::writeLog('OCP\Share', 'Couldn\'t set send mail status', ILogger::ERROR);
 		}
 	}
@@ -729,7 +729,7 @@ 
 		if ($defaultExpireDateEnforced && $shareTime === null) {
 			$items = self::getItemShared($itemType, $itemSource);
 			$firstItem = reset($items);
-			$shareTime = (int)$firstItem['stime'];
+			$shareTime = (int) $firstItem['stime'];
 		}
 
 		if ($defaultExpireDateEnforced) {
@@ -737,9 +737,9 @@ 
 			$maxDate = new \DateTime();
 			$maxDate->setTimestamp($shareTime);
 			$maxDays = \OC::$server->getConfig()->getAppValue('core', 'shareapi_expire_after_n_days', '7');
-			$maxDate->add(new \DateInterval('P' . $maxDays . 'D'));
+			$maxDate->add(new \DateInterval('P'.$maxDays.'D'));
 			if ($date > $maxDate) {
-				$warning = 'Cannot set expiration date. Shares cannot expire later than ' . $maxDays . ' after they have been shared';
+				$warning = 'Cannot set expiration date. Shares cannot expire later than '.$maxDays.' after they have been shared';
 				$warning_t = $l->t('Cannot set expiration date. Shares cannot expire later than %s after they have been shared', array($maxDays));
 				\OCP\Util::writeLog('OCP\Share', $warning, ILogger::WARN);
 				throw new \Exception($warning_t);
@@ -801,7 +801,7 @@ 
 	 */
 	protected static function unshareItem(array $item, $newParent = null) {
 
-		$shareType = (int)$item['share_type'];
+		$shareType = (int) $item['share_type'];
 		$shareWith = null;
 		if ($shareType !== \OCP\Share::SHARE_TYPE_LINK) {
 			$shareWith = $item['share_with'];
@@ -817,7 +817,7 @@ 
 			'itemParent'    => $item['parent'],
 			'uidOwner'      => $item['uid_owner'],
 		);
-		if($item['item_type'] === 'file' || $item['item_type'] === 'folder') {
+		if ($item['item_type'] === 'file' || $item['item_type'] === 'folder') {
 			$hookParams['fileSource'] = $item['file_source'];
 			$hookParams['fileTarget'] = $item['file_target'];
 		}
@@ -827,7 +827,7 @@ 
 		$deletedShares[] = $hookParams;
 		$hookParams['deletedShares'] = $deletedShares;
 		\OC_Hook::emit(\OCP\Share::class, 'post_unshare', $hookParams);
-		if ((int)$item['share_type'] === \OCP\Share::SHARE_TYPE_REMOTE && \OC::$server->getUserSession()->getUser()) {
+		if ((int) $item['share_type'] === \OCP\Share::SHARE_TYPE_REMOTE && \OC::$server->getUserSession()->getUser()) {
 			list(, $remote) = Helper::splitUserRemote($item['share_with']);
 			self::sendRemoteUnshare($remote, $item['id'], $item['token']);
 		}
@@ -988,7 +988,7 @@ 
 		// Get filesystem root to add it to the file target and remove from the
 		// file source, match file_source with the file cache
 		if ($itemType == 'file' || $itemType == 'folder') {
-			if(!is_null($uidOwner)) {
+			if (!is_null($uidOwner)) {
 				$root = \OC\Files\Filesystem::getRoot();
 			} else {
 				$root = '';
@@ -1133,7 +1133,7 @@ 
 		$result = $query->execute($queryArgs);
 		if ($result === false) {
 			\OCP\Util::writeLog('OCP\Share',
-				\OC_DB::getErrorMessage() . ', select=' . $select . ' where=',
+				\OC_DB::getErrorMessage().', select='.$select.' where=',
 				ILogger::ERROR);
 		}
 		$items = array();
@@ -1175,14 +1175,14 @@ 
 						}
 						// Switch ids if sharing permission is granted on only
 						// one share to ensure correct parent is used if resharing
-						if (~(int)$items[$id]['permissions'] & \OCP\Constants::PERMISSION_SHARE
-							&& (int)$row['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
+						if (~(int) $items[$id]['permissions'] & \OCP\Constants::PERMISSION_SHARE
+							&& (int) $row['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
 							$items[$row['id']] = $items[$id];
 							$switchedItems[$id] = $row['id'];
 							unset($items[$id]);
 							$id = $row['id'];
 						}
-						$items[$id]['permissions'] |= (int)$row['permissions'];
+						$items[$id]['permissions'] |= (int) $row['permissions'];
 
 					}
 					continue;
@@ -1196,8 +1196,8 @@ 
 					$query = \OC_DB::prepare('SELECT `file_target` FROM `*PREFIX*share` WHERE `id` = ?');
 					$parentResult = $query->execute(array($row['parent']));
 					if ($result === false) {
-						\OCP\Util::writeLog('OCP\Share', 'Can\'t select parent: ' .
-							\OC_DB::getErrorMessage() . ', select=' . $select . ' where=' . $where,
+						\OCP\Util::writeLog('OCP\Share', 'Can\'t select parent: '.
+							\OC_DB::getErrorMessage().', select='.$select.' where='.$where,
 							ILogger::ERROR);
 					} else {
 						$parentRow = $parentResult->fetchRow();
@@ -1207,7 +1207,7 @@ 
 						$subPath = substr($row['path'], $pos);
 						$splitPath = explode('/', $subPath);
 						foreach (array_slice($splitPath, 2) as $pathPart) {
-							$tmpPath = $tmpPath . '/' . $pathPart;
+							$tmpPath = $tmpPath.'/'.$pathPart;
 						}
 						$row['path'] = $tmpPath;
 					}
@@ -1226,7 +1226,7 @@ 
 				}
 			}
 
-			if($checkExpireDate) {
+			if ($checkExpireDate) {
 				if (self::expireItem($row)) {
 					continue;
 				}
@@ -1237,11 +1237,11 @@ 
 			}
 			// Add display names to result
 			$row['share_with_displayname'] = $row['share_with'];
-			if ( isset($row['share_with']) && $row['share_with'] != '' &&
+			if (isset($row['share_with']) && $row['share_with'] != '' &&
 				$row['share_type'] === self::SHARE_TYPE_USER) {
 				$shareWithUser = \OC::$server->getUserManager()->get($row['share_with']);
 				$row['share_with_displayname'] = $shareWithUser === null ? $row['share_with'] : $shareWithUser->getDisplayName();
-			} else if(isset($row['share_with']) && $row['share_with'] != '' &&
+			} else if (isset($row['share_with']) && $row['share_with'] != '' &&
 				$row['share_type'] === self::SHARE_TYPE_REMOTE) {
 				$addressBookEntries = \OC::$server->getContactsManager()->search($row['share_with'], ['CLOUD']);
 				foreach ($addressBookEntries as $entry) {
@@ -1252,7 +1252,7 @@ 
 					}
 				}
 			}
-			if ( isset($row['uid_owner']) && $row['uid_owner'] != '') {
+			if (isset($row['uid_owner']) && $row['uid_owner'] != '') {
 				$ownerUser = \OC::$server->getUserManager()->get($row['uid_owner']);
 				$row['displayname_owner'] = $ownerUser === null ? $row['uid_owner'] : $ownerUser->getDisplayName();
 			}
@@ -1401,7 +1401,7 @@ 
 				// for file/folder shares we need to compare file_source, otherwise we compare item_source
 				// only group shares if they already point to the same target, otherwise the file where shared
 				// before grouping of shares was added. In this case we don't group them toi avoid confusions
-				if (( $fileSharing && $item['file_source'] === $r['file_source'] && $item['file_target'] === $r['file_target']) ||
+				if (($fileSharing && $item['file_source'] === $r['file_source'] && $item['file_target'] === $r['file_target']) ||
 					(!$fileSharing && $item['item_source'] === $r['item_source'] && $item['item_target'] === $r['item_target'])) {
 					// add the first item to the list of grouped shares
 					if (!isset($result[$key]['grouped'])) {
@@ -1447,7 +1447,7 @@ 
 		$groupItemTarget = $itemTarget = $fileSource = $parent = 0;
 
 		$result = self::checkReshare($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, $itemSourceName, $expirationDate);
-		if(!empty($result)) {
+		if (!empty($result)) {
 			$parent = $result['parent'];
 			$itemSource = $result['itemSource'];
 			$fileSource = $result['fileSource'];
@@ -1541,11 +1541,11 @@ 
 				$itemTarget = $sourceExists['item_target'];
 
 				// for group shares we don't need a additional entry if the target is the same
-				if($isGroupShare && $groupItemTarget === $itemTarget) {
+				if ($isGroupShare && $groupItemTarget === $itemTarget) {
 					continue;
 				}
 
-			} elseif(!$sourceExists && !$isGroupShare)  {
+			} elseif (!$sourceExists && !$isGroupShare) {
 
 				$itemTarget = Helper::generateTarget($itemType, $itemSource, $userShareType, $user,
 					$uidOwner, $suggestedItemTarget, $parent);
@@ -1676,8 +1676,8 @@ 
 
 		if ($checkReshare && $checkReshare['uid_owner'] !== \OC_User::getUser()) {
 			// Check if share permissions is granted
-			if (self::isResharingAllowed() && (int)$checkReshare['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
-				if (~(int)$checkReshare['permissions'] & $permissions) {
+			if (self::isResharingAllowed() && (int) $checkReshare['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
+				if (~(int) $checkReshare['permissions'] & $permissions) {
 					$message = 'Sharing %1$s failed, because the permissions exceed permissions granted to %2$s';
 					$message_t = $l->t('Sharing %1$s failed, because the permissions exceed permissions granted to %2$s', array($itemSourceName, $uidOwner));
 
@@ -1689,7 +1689,7 @@ 
 
 					$result['expirationDate'] = $expirationDate;
 					// $checkReshare['expiration'] could be null and then is always less than any value
-					if(isset($checkReshare['expiration']) && $checkReshare['expiration'] < $expirationDate) {
+					if (isset($checkReshare['expiration']) && $checkReshare['expiration'] < $expirationDate) {
 						$result['expirationDate'] = $checkReshare['expiration'];
 					}
 
@@ -1781,7 +1781,7 @@ 
 
 		$id = false;
 		if ($result) {
-			$id =  \OC::$server->getDatabaseConnection()->lastInsertId('*PREFIX*share');
+			$id = \OC::$server->getDatabaseConnection()->lastInsertId('*PREFIX*share');
 		}
 
 		return $id;
@@ -1809,8 +1809,8 @@ 
 			return true;
 		}
 
-		if ( \OC::$server->getSession()->exists('public_link_authenticated')
-			&& \OC::$server->getSession()->get('public_link_authenticated') === (string)$linkItem['id'] ) {
+		if (\OC::$server->getSession()->exists('public_link_authenticated')
+			&& \OC::$server->getSession()->get('public_link_authenticated') === (string) $linkItem['id']) {
 			return true;
 		}
 
@@ -1912,7 +1912,7 @@ 
 	 * @param array $parameters additional format parameters
 	 * @return array format result
 	 */
-	private static function formatResult($items, $column, $backend, $format = self::FORMAT_NONE , $parameters = null) {
+	private static function formatResult($items, $column, $backend, $format = self::FORMAT_NONE, $parameters = null) {
 		if ($format === self::FORMAT_NONE) {
 			return $items;
 		} else if ($format === self::FORMAT_STATUSES) {
@@ -1969,13 +1969,13 @@ 
 		$try = 0;
 		$discoveryService = \OC::$server->query(\OCP\OCS\IDiscoveryService::class);
 		while ($result['success'] === false && $try < 2) {
-			$federationEndpoints = $discoveryService->discover($protocol . $remoteDomain, 'FEDERATED_SHARING');
+			$federationEndpoints = $discoveryService->discover($protocol.$remoteDomain, 'FEDERATED_SHARING');
 			$endpoint = isset($federationEndpoints['share']) ? $federationEndpoints['share'] : '/ocs/v2.php/cloud/shares';
 			$client = \OC::$server->getHTTPClientService()->newClient();
 
 			try {
 				$response = $client->post(
-					$protocol . $remoteDomain . $endpoint . $urlSuffix . '?format=' . self::RESPONSE_FORMAT,
+					$protocol.$remoteDomain.$endpoint.$urlSuffix.'?format='.self::RESPONSE_FORMAT,
 					[
 						'body' => $fields,
 						'connect_timeout' => 10,
@@ -2075,7 +2075,7 @@ 
 	 * @return int
 	 */
 	public static function getExpireInterval() {
-		return (int)\OC::$server->getConfig()->getAppValue('core', 'shareapi_expire_after_n_days', '7');
+		return (int) \OC::$server->getConfig()->getAppValue('core', 'shareapi_expire_after_n_days', '7');
 	}
 
 	/**

core/ajax/update.php

Indentation +182 added lines, -182 removed lines

@@ -33,7 +33,7 @@ 
 use Symfony\Component\EventDispatcher\GenericEvent;
 
 if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
-	@set_time_limit(0);
+    @set_time_limit(0);
 }
 
 require_once '../../lib/base.php';
@@ -47,192 +47,192 @@ 
 $eventSource->send('success', (string)$l->t('Preparing update'));
 
 class FeedBackHandler {
-	/** @var integer */
-	private $progressStateMax = 100;
-	/** @var integer */
-	private $progressStateStep = 0;
-	/** @var string */
-	private $currentStep;
-	/** @var \OCP\IEventSource */
-	private $eventSource;
-	/** @var \OCP\IL10N */
-	private $l10n;
-
-	public function __construct(\OCP\IEventSource $eventSource, \OCP\IL10N $l10n) {
-		$this->eventSource = $eventSource;
-		$this->l10n = $l10n;
-	}
-
-	public function handleRepairFeedback($event) {
-		if (!$event instanceof GenericEvent) {
-			return;
-		}
-
-		switch ($event->getSubject()) {
-			case '\OC\Repair::startProgress':
-				$this->progressStateMax = $event->getArgument(0);
-				$this->progressStateStep = 0;
-				$this->currentStep = $event->getArgument(1);
-				break;
-			case '\OC\Repair::advance':
-				$this->progressStateStep += $event->getArgument(0);
-				$desc = $event->getArgument(1);
-				if (empty($desc)) {
-					$desc = $this->currentStep;
-				}
-				$this->eventSource->send('success', (string)$this->l10n->t('[%d / %d]: %s', [$this->progressStateStep, $this->progressStateMax, $desc]));
-				break;
-			case '\OC\Repair::finishProgress':
-				$this->progressStateMax = $this->progressStateStep;
-				$this->eventSource->send('success', (string)$this->l10n->t('[%d / %d]: %s', [$this->progressStateStep, $this->progressStateMax, $this->currentStep]));
-				break;
-			case '\OC\Repair::step':
-				break;
-			case '\OC\Repair::info':
-				break;
-			case '\OC\Repair::warning':
-				$this->eventSource->send('notice', (string)$this->l10n->t('Repair warning: ') . $event->getArgument(0));
-				break;
-			case '\OC\Repair::error':
-				$this->eventSource->send('notice', (string)$this->l10n->t('Repair error: ') . $event->getArgument(0));
-				break;
-		}
-	}
+    /** @var integer */
+    private $progressStateMax = 100;
+    /** @var integer */
+    private $progressStateStep = 0;
+    /** @var string */
+    private $currentStep;
+    /** @var \OCP\IEventSource */
+    private $eventSource;
+    /** @var \OCP\IL10N */
+    private $l10n;
+
+    public function __construct(\OCP\IEventSource $eventSource, \OCP\IL10N $l10n) {
+        $this->eventSource = $eventSource;
+        $this->l10n = $l10n;
+    }
+
+    public function handleRepairFeedback($event) {
+        if (!$event instanceof GenericEvent) {
+            return;
+        }
+
+        switch ($event->getSubject()) {
+            case '\OC\Repair::startProgress':
+                $this->progressStateMax = $event->getArgument(0);
+                $this->progressStateStep = 0;
+                $this->currentStep = $event->getArgument(1);
+                break;
+            case '\OC\Repair::advance':
+                $this->progressStateStep += $event->getArgument(0);
+                $desc = $event->getArgument(1);
+                if (empty($desc)) {
+                    $desc = $this->currentStep;
+                }
+                $this->eventSource->send('success', (string)$this->l10n->t('[%d / %d]: %s', [$this->progressStateStep, $this->progressStateMax, $desc]));
+                break;
+            case '\OC\Repair::finishProgress':
+                $this->progressStateMax = $this->progressStateStep;
+                $this->eventSource->send('success', (string)$this->l10n->t('[%d / %d]: %s', [$this->progressStateStep, $this->progressStateMax, $this->currentStep]));
+                break;
+            case '\OC\Repair::step':
+                break;
+            case '\OC\Repair::info':
+                break;
+            case '\OC\Repair::warning':
+                $this->eventSource->send('notice', (string)$this->l10n->t('Repair warning: ') . $event->getArgument(0));
+                break;
+            case '\OC\Repair::error':
+                $this->eventSource->send('notice', (string)$this->l10n->t('Repair error: ') . $event->getArgument(0));
+                break;
+        }
+    }
 }
 
 if (\OCP\Util::needUpgrade()) {
 
-	$config = \OC::$server->getSystemConfig();
-	if ($config->getValue('upgrade.disable-web', false)) {
-		$eventSource->send('failure', (string)$l->t('Please use the command line updater because automatic updating is disabled in the config.php.'));
-		$eventSource->close();
-		exit();
-	}
-
-	// if a user is currently logged in, their session must be ignored to
-	// avoid side effects
-	\OC_User::setIncognitoMode(true);
-
-	$logger = \OC::$server->getLogger();
-	$config = \OC::$server->getConfig();
-	$updater = new \OC\Updater(
-			$config,
-			\OC::$server->getIntegrityCodeChecker(),
-			$logger,
-			\OC::$server->query(\OC\Installer::class),
-			\OC::$server->getJobList()
-	);
-	$incompatibleApps = [];
-
-	$dispatcher = \OC::$server->getEventDispatcher();
-	$dispatcher->addListener('\OC\DB\Migrator::executeSql', function($event) use ($eventSource, $l) {
-		if ($event instanceof GenericEvent) {
-			$eventSource->send('success', (string)$l->t('[%d / %d]: %s', [$event[0], $event[1], $event->getSubject()]));
-		}
-	});
-	$dispatcher->addListener('\OC\DB\Migrator::checkTable', function($event) use ($eventSource, $l) {
-		if ($event instanceof GenericEvent) {
-			$eventSource->send('success', (string)$l->t('[%d / %d]: Checking table %s', [$event[0], $event[1], $event->getSubject()]));
-		}
-	});
-	$feedBack = new FeedBackHandler($eventSource, $l);
-	$dispatcher->addListener('\OC\Repair::startProgress', [$feedBack, 'handleRepairFeedback']);
-	$dispatcher->addListener('\OC\Repair::advance', [$feedBack, 'handleRepairFeedback']);
-	$dispatcher->addListener('\OC\Repair::finishProgress', [$feedBack, 'handleRepairFeedback']);
-	$dispatcher->addListener('\OC\Repair::step', [$feedBack, 'handleRepairFeedback']);
-	$dispatcher->addListener('\OC\Repair::info', [$feedBack, 'handleRepairFeedback']);
-	$dispatcher->addListener('\OC\Repair::warning', [$feedBack, 'handleRepairFeedback']);
-	$dispatcher->addListener('\OC\Repair::error', [$feedBack, 'handleRepairFeedback']);
-
-	$updater->listen('\OC\Updater', 'maintenanceEnabled', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Turned on maintenance mode'));
-	});
-	$updater->listen('\OC\Updater', 'maintenanceDisabled', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Turned off maintenance mode'));
-	});
-	$updater->listen('\OC\Updater', 'maintenanceActive', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Maintenance mode is kept active'));
-	});
-	$updater->listen('\OC\Updater', 'waitForCronToFinish', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Waiting for cron to finish (checks again in 5 seconds) …'));
-	});
-	$updater->listen('\OC\Updater', 'dbUpgradeBefore', function () use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Updating database schema'));
-	});
-	$updater->listen('\OC\Updater', 'dbUpgrade', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Updated database'));
-	});
-	$updater->listen('\OC\Updater', 'dbSimulateUpgradeBefore', function () use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checking whether the database schema can be updated (this can take a long time depending on the database size)'));
-	});
-	$updater->listen('\OC\Updater', 'dbSimulateUpgrade', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checked database schema update'));
-	});
-	$updater->listen('\OC\Updater', 'appUpgradeCheckBefore', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checking updates of apps'));
-	});
-	$updater->listen('\OC\Updater', 'checkAppStoreAppBefore', function ($app) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checking for update of app "%s" in appstore', [$app]));
-	});
-	$updater->listen('\OC\Updater', 'upgradeAppStoreApp', function ($app) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Update app "%s" from appstore', [$app]));
-	});
-	$updater->listen('\OC\Updater', 'checkAppStoreApp', function ($app) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checked for update of app "%s" in appstore', [$app]));
-	});
-	$updater->listen('\OC\Updater', 'appSimulateUpdate', function ($app) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checking whether the database schema for %s can be updated (this can take a long time depending on the database size)', [$app]));
-	});
-	$updater->listen('\OC\Updater', 'appUpgradeCheck', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checked database schema update for apps'));
-	});
-	$updater->listen('\OC\Updater', 'appUpgrade', function ($app, $version) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Updated "%1$s" to %2$s', array($app, $version)));
-	});
-	$updater->listen('\OC\Updater', 'incompatibleAppDisabled', function ($app) use (&$incompatibleApps) {
-		$incompatibleApps[]= $app;
-	});
-	$updater->listen('\OC\Updater', 'failure', function ($message) use ($eventSource, $config) {
-		$eventSource->send('failure', $message);
-		$eventSource->close();
-		$config->setSystemValue('maintenance', false);
-	});
-	$updater->listen('\OC\Updater', 'setDebugLogLevel', function ($logLevel, $logLevelName) use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Set log level to debug'));
-	});
-	$updater->listen('\OC\Updater', 'resetLogLevel', function ($logLevel, $logLevelName) use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Reset log level'));
-	});
-	$updater->listen('\OC\Updater', 'startCheckCodeIntegrity', function () use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Starting code integrity check'));
-	});
-	$updater->listen('\OC\Updater', 'finishedCheckCodeIntegrity', function () use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Finished code integrity check'));
-	});
-
-	try {
-		$updater->upgrade();
-	} catch (\Exception $e) {
-		\OC::$server->getLogger()->logException($e, [
-			'level' => ILogger::ERROR,
-			'app' => 'update',
-		]);
-		$eventSource->send('failure', get_class($e) . ': ' . $e->getMessage());
-		$eventSource->close();
-		exit();
-	}
-
-	$disabledApps = [];
-	foreach ($incompatibleApps as $app) {
-		$disabledApps[$app] = (string) $l->t('%s (incompatible)', [$app]);
-	}
-
-	if (!empty($disabledApps)) {
-		$eventSource->send('notice',
-			(string)$l->t('Following apps have been disabled: %s', [implode(', ', $disabledApps)]));
-	}
+    $config = \OC::$server->getSystemConfig();
+    if ($config->getValue('upgrade.disable-web', false)) {
+        $eventSource->send('failure', (string)$l->t('Please use the command line updater because automatic updating is disabled in the config.php.'));
+        $eventSource->close();
+        exit();
+    }
+
+    // if a user is currently logged in, their session must be ignored to
+    // avoid side effects
+    \OC_User::setIncognitoMode(true);
+
+    $logger = \OC::$server->getLogger();
+    $config = \OC::$server->getConfig();
+    $updater = new \OC\Updater(
+            $config,
+            \OC::$server->getIntegrityCodeChecker(),
+            $logger,
+            \OC::$server->query(\OC\Installer::class),
+            \OC::$server->getJobList()
+    );
+    $incompatibleApps = [];
+
+    $dispatcher = \OC::$server->getEventDispatcher();
+    $dispatcher->addListener('\OC\DB\Migrator::executeSql', function($event) use ($eventSource, $l) {
+        if ($event instanceof GenericEvent) {
+            $eventSource->send('success', (string)$l->t('[%d / %d]: %s', [$event[0], $event[1], $event->getSubject()]));
+        }
+    });
+    $dispatcher->addListener('\OC\DB\Migrator::checkTable', function($event) use ($eventSource, $l) {
+        if ($event instanceof GenericEvent) {
+            $eventSource->send('success', (string)$l->t('[%d / %d]: Checking table %s', [$event[0], $event[1], $event->getSubject()]));
+        }
+    });
+    $feedBack = new FeedBackHandler($eventSource, $l);
+    $dispatcher->addListener('\OC\Repair::startProgress', [$feedBack, 'handleRepairFeedback']);
+    $dispatcher->addListener('\OC\Repair::advance', [$feedBack, 'handleRepairFeedback']);
+    $dispatcher->addListener('\OC\Repair::finishProgress', [$feedBack, 'handleRepairFeedback']);
+    $dispatcher->addListener('\OC\Repair::step', [$feedBack, 'handleRepairFeedback']);
+    $dispatcher->addListener('\OC\Repair::info', [$feedBack, 'handleRepairFeedback']);
+    $dispatcher->addListener('\OC\Repair::warning', [$feedBack, 'handleRepairFeedback']);
+    $dispatcher->addListener('\OC\Repair::error', [$feedBack, 'handleRepairFeedback']);
+
+    $updater->listen('\OC\Updater', 'maintenanceEnabled', function () use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Turned on maintenance mode'));
+    });
+    $updater->listen('\OC\Updater', 'maintenanceDisabled', function () use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Turned off maintenance mode'));
+    });
+    $updater->listen('\OC\Updater', 'maintenanceActive', function () use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Maintenance mode is kept active'));
+    });
+    $updater->listen('\OC\Updater', 'waitForCronToFinish', function () use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Waiting for cron to finish (checks again in 5 seconds) …'));
+    });
+    $updater->listen('\OC\Updater', 'dbUpgradeBefore', function () use($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Updating database schema'));
+    });
+    $updater->listen('\OC\Updater', 'dbUpgrade', function () use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Updated database'));
+    });
+    $updater->listen('\OC\Updater', 'dbSimulateUpgradeBefore', function () use($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Checking whether the database schema can be updated (this can take a long time depending on the database size)'));
+    });
+    $updater->listen('\OC\Updater', 'dbSimulateUpgrade', function () use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Checked database schema update'));
+    });
+    $updater->listen('\OC\Updater', 'appUpgradeCheckBefore', function () use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Checking updates of apps'));
+    });
+    $updater->listen('\OC\Updater', 'checkAppStoreAppBefore', function ($app) use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Checking for update of app "%s" in appstore', [$app]));
+    });
+    $updater->listen('\OC\Updater', 'upgradeAppStoreApp', function ($app) use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Update app "%s" from appstore', [$app]));
+    });
+    $updater->listen('\OC\Updater', 'checkAppStoreApp', function ($app) use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Checked for update of app "%s" in appstore', [$app]));
+    });
+    $updater->listen('\OC\Updater', 'appSimulateUpdate', function ($app) use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Checking whether the database schema for %s can be updated (this can take a long time depending on the database size)', [$app]));
+    });
+    $updater->listen('\OC\Updater', 'appUpgradeCheck', function () use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Checked database schema update for apps'));
+    });
+    $updater->listen('\OC\Updater', 'appUpgrade', function ($app, $version) use ($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Updated "%1$s" to %2$s', array($app, $version)));
+    });
+    $updater->listen('\OC\Updater', 'incompatibleAppDisabled', function ($app) use (&$incompatibleApps) {
+        $incompatibleApps[]= $app;
+    });
+    $updater->listen('\OC\Updater', 'failure', function ($message) use ($eventSource, $config) {
+        $eventSource->send('failure', $message);
+        $eventSource->close();
+        $config->setSystemValue('maintenance', false);
+    });
+    $updater->listen('\OC\Updater', 'setDebugLogLevel', function ($logLevel, $logLevelName) use($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Set log level to debug'));
+    });
+    $updater->listen('\OC\Updater', 'resetLogLevel', function ($logLevel, $logLevelName) use($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Reset log level'));
+    });
+    $updater->listen('\OC\Updater', 'startCheckCodeIntegrity', function () use($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Starting code integrity check'));
+    });
+    $updater->listen('\OC\Updater', 'finishedCheckCodeIntegrity', function () use($eventSource, $l) {
+        $eventSource->send('success', (string)$l->t('Finished code integrity check'));
+    });
+
+    try {
+        $updater->upgrade();
+    } catch (\Exception $e) {
+        \OC::$server->getLogger()->logException($e, [
+            'level' => ILogger::ERROR,
+            'app' => 'update',
+        ]);
+        $eventSource->send('failure', get_class($e) . ': ' . $e->getMessage());
+        $eventSource->close();
+        exit();
+    }
+
+    $disabledApps = [];
+    foreach ($incompatibleApps as $app) {
+        $disabledApps[$app] = (string) $l->t('%s (incompatible)', [$app]);
+    }
+
+    if (!empty($disabledApps)) {
+        $eventSource->send('notice',
+            (string)$l->t('Following apps have been disabled: %s', [implode(', ', $disabledApps)]));
+    }
 } else {
-	$eventSource->send('notice', (string)$l->t('Already up to date'));
+    $eventSource->send('notice', (string)$l->t('Already up to date'));
 }
 
 $eventSource->send('done', '');

Spacing +52 added lines, -52 removed lines

@@ -44,7 +44,7 @@ 
 // need to send an initial message to force-init the event source,
 // which will then trigger its own CSRF check and produces its own CSRF error
 // message
-$eventSource->send('success', (string)$l->t('Preparing update'));
+$eventSource->send('success', (string) $l->t('Preparing update'));
 
 class FeedBackHandler {
 	/** @var integer */
@@ -80,21 +80,21 @@ 
 				if (empty($desc)) {
 					$desc = $this->currentStep;
 				}
-				$this->eventSource->send('success', (string)$this->l10n->t('[%d / %d]: %s', [$this->progressStateStep, $this->progressStateMax, $desc]));
+				$this->eventSource->send('success', (string) $this->l10n->t('[%d / %d]: %s', [$this->progressStateStep, $this->progressStateMax, $desc]));
 				break;
 			case '\OC\Repair::finishProgress':
 				$this->progressStateMax = $this->progressStateStep;
-				$this->eventSource->send('success', (string)$this->l10n->t('[%d / %d]: %s', [$this->progressStateStep, $this->progressStateMax, $this->currentStep]));
+				$this->eventSource->send('success', (string) $this->l10n->t('[%d / %d]: %s', [$this->progressStateStep, $this->progressStateMax, $this->currentStep]));
 				break;
 			case '\OC\Repair::step':
 				break;
 			case '\OC\Repair::info':
 				break;
 			case '\OC\Repair::warning':
-				$this->eventSource->send('notice', (string)$this->l10n->t('Repair warning: ') . $event->getArgument(0));
+				$this->eventSource->send('notice', (string) $this->l10n->t('Repair warning: ').$event->getArgument(0));
 				break;
 			case '\OC\Repair::error':
-				$this->eventSource->send('notice', (string)$this->l10n->t('Repair error: ') . $event->getArgument(0));
+				$this->eventSource->send('notice', (string) $this->l10n->t('Repair error: ').$event->getArgument(0));
 				break;
 		}
 	}
@@ -104,7 +104,7 @@ 
 
 	$config = \OC::$server->getSystemConfig();
 	if ($config->getValue('upgrade.disable-web', false)) {
-		$eventSource->send('failure', (string)$l->t('Please use the command line updater because automatic updating is disabled in the config.php.'));
+		$eventSource->send('failure', (string) $l->t('Please use the command line updater because automatic updating is disabled in the config.php.'));
 		$eventSource->close();
 		exit();
 	}
@@ -127,12 +127,12 @@ 
 	$dispatcher = \OC::$server->getEventDispatcher();
 	$dispatcher->addListener('\OC\DB\Migrator::executeSql', function($event) use ($eventSource, $l) {
 		if ($event instanceof GenericEvent) {
-			$eventSource->send('success', (string)$l->t('[%d / %d]: %s', [$event[0], $event[1], $event->getSubject()]));
+			$eventSource->send('success', (string) $l->t('[%d / %d]: %s', [$event[0], $event[1], $event->getSubject()]));
 		}
 	});
 	$dispatcher->addListener('\OC\DB\Migrator::checkTable', function($event) use ($eventSource, $l) {
 		if ($event instanceof GenericEvent) {
-			$eventSource->send('success', (string)$l->t('[%d / %d]: Checking table %s', [$event[0], $event[1], $event->getSubject()]));
+			$eventSource->send('success', (string) $l->t('[%d / %d]: Checking table %s', [$event[0], $event[1], $event->getSubject()]));
 		}
 	});
 	$feedBack = new FeedBackHandler($eventSource, $l);
@@ -144,70 +144,70 @@ 
 	$dispatcher->addListener('\OC\Repair::warning', [$feedBack, 'handleRepairFeedback']);
 	$dispatcher->addListener('\OC\Repair::error', [$feedBack, 'handleRepairFeedback']);
 
-	$updater->listen('\OC\Updater', 'maintenanceEnabled', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Turned on maintenance mode'));
+	$updater->listen('\OC\Updater', 'maintenanceEnabled', function() use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Turned on maintenance mode'));
 	});
-	$updater->listen('\OC\Updater', 'maintenanceDisabled', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Turned off maintenance mode'));
+	$updater->listen('\OC\Updater', 'maintenanceDisabled', function() use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Turned off maintenance mode'));
 	});
-	$updater->listen('\OC\Updater', 'maintenanceActive', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Maintenance mode is kept active'));
+	$updater->listen('\OC\Updater', 'maintenanceActive', function() use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Maintenance mode is kept active'));
 	});
-	$updater->listen('\OC\Updater', 'waitForCronToFinish', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Waiting for cron to finish (checks again in 5 seconds) …'));
+	$updater->listen('\OC\Updater', 'waitForCronToFinish', function() use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Waiting for cron to finish (checks again in 5 seconds) …'));
 	});
-	$updater->listen('\OC\Updater', 'dbUpgradeBefore', function () use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Updating database schema'));
+	$updater->listen('\OC\Updater', 'dbUpgradeBefore', function() use($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Updating database schema'));
 	});
-	$updater->listen('\OC\Updater', 'dbUpgrade', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Updated database'));
+	$updater->listen('\OC\Updater', 'dbUpgrade', function() use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Updated database'));
 	});
-	$updater->listen('\OC\Updater', 'dbSimulateUpgradeBefore', function () use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checking whether the database schema can be updated (this can take a long time depending on the database size)'));
+	$updater->listen('\OC\Updater', 'dbSimulateUpgradeBefore', function() use($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Checking whether the database schema can be updated (this can take a long time depending on the database size)'));
 	});
-	$updater->listen('\OC\Updater', 'dbSimulateUpgrade', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checked database schema update'));
+	$updater->listen('\OC\Updater', 'dbSimulateUpgrade', function() use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Checked database schema update'));
 	});
-	$updater->listen('\OC\Updater', 'appUpgradeCheckBefore', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checking updates of apps'));
+	$updater->listen('\OC\Updater', 'appUpgradeCheckBefore', function() use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Checking updates of apps'));
 	});
-	$updater->listen('\OC\Updater', 'checkAppStoreAppBefore', function ($app) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checking for update of app "%s" in appstore', [$app]));
+	$updater->listen('\OC\Updater', 'checkAppStoreAppBefore', function($app) use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Checking for update of app "%s" in appstore', [$app]));
 	});
-	$updater->listen('\OC\Updater', 'upgradeAppStoreApp', function ($app) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Update app "%s" from appstore', [$app]));
+	$updater->listen('\OC\Updater', 'upgradeAppStoreApp', function($app) use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Update app "%s" from appstore', [$app]));
 	});
-	$updater->listen('\OC\Updater', 'checkAppStoreApp', function ($app) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checked for update of app "%s" in appstore', [$app]));
+	$updater->listen('\OC\Updater', 'checkAppStoreApp', function($app) use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Checked for update of app "%s" in appstore', [$app]));
 	});
-	$updater->listen('\OC\Updater', 'appSimulateUpdate', function ($app) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checking whether the database schema for %s can be updated (this can take a long time depending on the database size)', [$app]));
+	$updater->listen('\OC\Updater', 'appSimulateUpdate', function($app) use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Checking whether the database schema for %s can be updated (this can take a long time depending on the database size)', [$app]));
 	});
-	$updater->listen('\OC\Updater', 'appUpgradeCheck', function () use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Checked database schema update for apps'));
+	$updater->listen('\OC\Updater', 'appUpgradeCheck', function() use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Checked database schema update for apps'));
 	});
-	$updater->listen('\OC\Updater', 'appUpgrade', function ($app, $version) use ($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Updated "%1$s" to %2$s', array($app, $version)));
+	$updater->listen('\OC\Updater', 'appUpgrade', function($app, $version) use ($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Updated "%1$s" to %2$s', array($app, $version)));
 	});
-	$updater->listen('\OC\Updater', 'incompatibleAppDisabled', function ($app) use (&$incompatibleApps) {
-		$incompatibleApps[]= $app;
+	$updater->listen('\OC\Updater', 'incompatibleAppDisabled', function($app) use (&$incompatibleApps) {
+		$incompatibleApps[] = $app;
 	});
-	$updater->listen('\OC\Updater', 'failure', function ($message) use ($eventSource, $config) {
+	$updater->listen('\OC\Updater', 'failure', function($message) use ($eventSource, $config) {
 		$eventSource->send('failure', $message);
 		$eventSource->close();
 		$config->setSystemValue('maintenance', false);
 	});
-	$updater->listen('\OC\Updater', 'setDebugLogLevel', function ($logLevel, $logLevelName) use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Set log level to debug'));
+	$updater->listen('\OC\Updater', 'setDebugLogLevel', function($logLevel, $logLevelName) use($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Set log level to debug'));
 	});
-	$updater->listen('\OC\Updater', 'resetLogLevel', function ($logLevel, $logLevelName) use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Reset log level'));
+	$updater->listen('\OC\Updater', 'resetLogLevel', function($logLevel, $logLevelName) use($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Reset log level'));
 	});
-	$updater->listen('\OC\Updater', 'startCheckCodeIntegrity', function () use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Starting code integrity check'));
+	$updater->listen('\OC\Updater', 'startCheckCodeIntegrity', function() use($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Starting code integrity check'));
 	});
-	$updater->listen('\OC\Updater', 'finishedCheckCodeIntegrity', function () use($eventSource, $l) {
-		$eventSource->send('success', (string)$l->t('Finished code integrity check'));
+	$updater->listen('\OC\Updater', 'finishedCheckCodeIntegrity', function() use($eventSource, $l) {
+		$eventSource->send('success', (string) $l->t('Finished code integrity check'));
 	});
 
 	try {
@@ -217,7 +217,7 @@ 
 			'level' => ILogger::ERROR,
 			'app' => 'update',
 		]);
-		$eventSource->send('failure', get_class($e) . ': ' . $e->getMessage());
+		$eventSource->send('failure', get_class($e).': '.$e->getMessage());
 		$eventSource->close();
 		exit();
 	}
@@ -229,10 +229,10 @@ 
 
 	if (!empty($disabledApps)) {
 		$eventSource->send('notice',
-			(string)$l->t('Following apps have been disabled: %s', [implode(', ', $disabledApps)]));
+			(string) $l->t('Following apps have been disabled: %s', [implode(', ', $disabledApps)]));
 	}
 } else {
-	$eventSource->send('notice', (string)$l->t('Already up to date'));
+	$eventSource->send('notice', (string) $l->t('Already up to date'));
 }
 
 $eventSource->send('done', '');

core/templates/loginflow/authpicker.php

Indentation +3 added lines, -3 removed lines

@@ -31,9 +31,9 @@
 	<h2><?php p($l->t('Connect to your account')) ?></h2>
 	<p class="info">
 		<?php print_unescaped($l->t('Please log in before granting %1$s access to your %2$s account.', [
-								'<strong>' . \OCP\Util::sanitizeHTML($_['client']) . '</strong>',
-								\OCP\Util::sanitizeHTML($_['instanceName'])
-							])) ?>
+                                '<strong>' . \OCP\Util::sanitizeHTML($_['client']) . '</strong>',
+                                \OCP\Util::sanitizeHTML($_['instanceName'])
+                            ])) ?>
 	</p>
 
 	<br/>

Spacing +2 added lines, -2 removed lines

@@ -31,7 +31,7 @@ 
 	<h2><?php p($l->t('Connect to your account')) ?></h2>
 	<p class="info">
 		<?php print_unescaped($l->t('Please log in before granting %1$s access to your %2$s account.', [
-								'<strong>' . \OCP\Util::sanitizeHTML($_['client']) . '</strong>',
+								'<strong>'.\OCP\Util::sanitizeHTML($_['client']).'</strong>',
 								\OCP\Util::sanitizeHTML($_['instanceName'])
 							])) ?>
 	</p>
@@ -58,6 +58,6 @@ 
 	</fieldset>
 </div>
 
-<?php if(empty($_['oauthState'])): ?>
+<?php if (empty($_['oauthState'])): ?>
 <a id="app-token-login" class="warning" href="#"><?php p($l->t('Alternative log in using app token')) ?></a>
 <?php endif; ?>

core/templates/loginflow/grant.php

Indentation +3 added lines, -3 removed lines

@@ -31,9 +31,9 @@
 	<h2><?php p($l->t('Account access')) ?></h2>
 	<p class="info">
 		<?php print_unescaped($l->t('You are about to grant %1$s access to your %2$s account.', [
-								'<strong>' . \OCP\Util::sanitizeHTML($_['client']) . '</strong>',
-								\OCP\Util::sanitizeHTML($_['instanceName'])
-							])) ?>
+                                '<strong>' . \OCP\Util::sanitizeHTML($_['client']) . '</strong>',
+                                \OCP\Util::sanitizeHTML($_['instanceName'])
+                            ])) ?>
 	</p>
 
 	<br/>

Spacing +1 added lines, -1 removed lines

@@ -31,7 +31,7 @@
 	<h2><?php p($l->t('Account access')) ?></h2>
 	<p class="info">
 		<?php print_unescaped($l->t('You are about to grant %1$s access to your %2$s account.', [
-								'<strong>' . \OCP\Util::sanitizeHTML($_['client']) . '</strong>',
+								'<strong>'.\OCP\Util::sanitizeHTML($_['client']).'</strong>',
 								\OCP\Util::sanitizeHTML($_['instanceName'])
 							])) ?>
 	</p>

core/templates/update.admin.php

Indentation +1 added lines, -1 removed lines

@@ -4,7 +4,7 @@
 		<h2 class="title"><?php p($l->t('App update required')); ?></h2>
 		<?php } else { ?>
 		<h2 class="title"><?php p($l->t('%1$s will be updated to version %2$s',
-			array($_['productName'], $_['version']))); ?></h2>
+            array($_['productName'], $_['version']))); ?></h2>
 		<?php } ?>
 		<?php if (!empty($_['appsToUpgrade'])) { ?>
 		<div class="infogroup">

core/templates/untrustedDomain.php

Spacing +1 added lines, -1 removed lines

@@ -8,6 +8,6 @@
 	</p>
 	<br />
 	<p>
-		<?php print_unescaped($l->t('Further information how to configure this can be found in the %1$sdocumentation%2$s.', ['<a href="' . $_['docUrl'] . '" target="blank">', '</a>'])); ?>
+		<?php print_unescaped($l->t('Further information how to configure this can be found in the %1$sdocumentation%2$s.', ['<a href="'.$_['docUrl'].'" target="blank">', '</a>'])); ?>
 	</p>
 </div>

settings/templates/settings/admin/overview.php

Spacing +10 added lines, -10 removed lines

@@ -28,39 +28,39 @@
 ?>
 
 <div id="security-warning" class="section">
-	<h2><?php p($l->t('Security & setup warnings'));?></h2>
-	<p class="settings-hint"><?php p($l->t('It\'s important for the security and performance of your instance that everything is configured correctly. To help you with that we are doing some automatic checks. Please see the linked documentation for more information.'));?></p>
+	<h2><?php p($l->t('Security & setup warnings')); ?></h2>
+	<p class="settings-hint"><?php p($l->t('It\'s important for the security and performance of your instance that everything is configured correctly. To help you with that we are doing some automatic checks. Please see the linked documentation for more information.')); ?></p>
 
 	<div id="security-warning-state-ok" class="hidden">
-		<span class="icon icon-checkmark-white"></span><span class="message"><?php p($l->t('All checks passed.'));?></span>
+		<span class="icon icon-checkmark-white"></span><span class="message"><?php p($l->t('All checks passed.')); ?></span>
 	</div>
 	<div id="security-warning-state-failure" class="hidden">
-		<span class="icon icon-close-white"></span><span class="message"><?php p($l->t('There are some errors regarding your setup.'));?></span>
+		<span class="icon icon-close-white"></span><span class="message"><?php p($l->t('There are some errors regarding your setup.')); ?></span>
 	</div>
 	<div id="security-warning-state-warning" class="hidden">
-		<span class="icon icon-error-white"></span><span class="message"><?php p($l->t('There are some warnings regarding your setup.'));?></span>
+		<span class="icon icon-error-white"></span><span class="message"><?php p($l->t('There are some warnings regarding your setup.')); ?></span>
 	</div>
 	<div id="security-warning-state-loading">
-		<span class="icon loading"></span><span class="message"><?php p($l->t('Checking for system and security issues.'));?></span>
+		<span class="icon loading"></span><span class="message"><?php p($l->t('Checking for system and security issues.')); ?></span>
 	</div>
 
-	<div id="postsetupchecks" data-check-wellknown="<?php if($_['checkForWorkingWellKnownSetup']) { p('true'); } else { p('false'); } ?>">
+	<div id="postsetupchecks" data-check-wellknown="<?php if ($_['checkForWorkingWellKnownSetup']) { p('true'); } else { p('false'); } ?>">
 		<ul class="errors hidden"></ul>
 		<ul class="warnings hidden"></ul>
 		<ul class="info hidden"></ul>
 	</div>
 	<p id="postsetupchecks-hint" class="hidden">
-		<?php print_unescaped($l->t('Please double check the <a target="_blank" rel="noreferrer noopener" href="%1$s">installation guides ↗</a>, and check for any errors or warnings in the <a href="%2$s">log</a>.', [link_to_docs('admin-install'), \OC::$server->getURLGenerator()->linkToRoute('settings.AdminSettings.index', ['section' => 'logging'])] )); ?>
+		<?php print_unescaped($l->t('Please double check the <a target="_blank" rel="noreferrer noopener" href="%1$s">installation guides ↗</a>, and check for any errors or warnings in the <a href="%2$s">log</a>.', [link_to_docs('admin-install'), \OC::$server->getURLGenerator()->linkToRoute('settings.AdminSettings.index', ['section' => 'logging'])])); ?>
 	</p>
 
 	<p class="extra-top-margin">
-		<?php print_unescaped($l->t('Check the security of your Nextcloud over <a target="_blank" rel="noreferrer noopener" href="%s">our security scan ↗</a>.', ['https://scan.nextcloud.com']));?>
+		<?php print_unescaped($l->t('Check the security of your Nextcloud over <a target="_blank" rel="noreferrer noopener" href="%s">our security scan ↗</a>.', ['https://scan.nextcloud.com'])); ?>
 	</p>
 
 </div>
 
 <div id="version" class="section">
 	<!-- should be the last part, so Updater can follow if enabled (it has no heading therefore). -->
-	<h2><?php p($l->t('Version'));?></h2>
+	<h2><?php p($l->t('Version')); ?></h2>
 	<p><strong><a href="<?php print_unescaped($theme->getBaseUrl()); ?>" rel="noreferrer noopener" target="_blank"><?php p($theme->getTitle()); ?></a> <?php p(OC_Util::getHumanVersion()) ?></strong></p>
 </div>

settings/templates/settings/personal/personal.info.php

Indentation +39 added lines, -39 removed lines

@@ -26,10 +26,10 @@ 
 /** @var array $_ */
 
 script('settings', [
-	'usersettings',
-	'federationsettingsview',
-	'federationscopemenu',
-	'settings/personalInfo',
+    'usersettings',
+    'federationsettingsview',
+    'federationscopemenu',
+    'settings/personalInfo',
 ]);
 vendor_script('jcrop/js/jquery.Jcrop');
 vendor_style('jcrop/css/jquery.Jcrop');
@@ -87,10 +87,10 @@ 
 					<p class="quotatext">
 						<?php if ($_['quota'] === \OCP\Files\FileInfo::SPACE_UNLIMITED): ?>
 							<?php print_unescaped($l->t('You are using <strong>%s</strong>',
-								[$_['usage']]));?>
+                                [$_['usage']]));?>
 						<?php else: ?>
 							<?php print_unescaped($l->t('You are using <strong>%1$s</strong> of <strong>%2$s</strong> (<strong>%3$s %%</strong>)',
-								[$_['usage'], $_['total_space'],  $_['usage_relative']]));?>
+                                [$_['usage'], $_['total_space'],  $_['usage_relative']]));?>
 						<?php endif ?>
 					</p>
 				</div>
@@ -137,17 +137,17 @@ 
 				<div class="verify <?php if ($_['email'] === ''  || $_['emailScope'] !== 'public') p('hidden'); ?>">
 					<img id="verify-email" title="<?php p($_['emailMessage']); ?>" data-status="<?php p($_['emailVerification']) ?>" src="
 				<?php
-					switch($_['emailVerification']) {
-						case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
-							p(image_path('core', 'actions/verifying.svg'));
-							break;
-						case \OC\Accounts\AccountManager::VERIFIED:
-							p(image_path('core', 'actions/verified.svg'));
-							break;
-						default:
-							p(image_path('core', 'actions/verify.svg'));
-					}
-					?>">
+                    switch($_['emailVerification']) {
+                        case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
+                            p(image_path('core', 'actions/verifying.svg'));
+                            break;
+                        case \OC\Accounts\AccountManager::VERIFIED:
+                            p(image_path('core', 'actions/verified.svg'));
+                            break;
+                        default:
+                            p(image_path('core', 'actions/verify.svg'));
+                    }
+                    ?>">
 				</div>
 				<input type="email" name="email" id="email" value="<?php p($_['email']); ?>"
 					<?php if(!$_['displayNameChangeSupported']) { print_unescaped('class="hidden"'); } ?>
@@ -225,17 +225,17 @@ 
 				<div class="verify <?php if ($_['website'] === ''  || $_['websiteScope'] !== 'public') p('hidden'); ?>">
 					<img id="verify-website" title="<?php p($_['websiteMessage']); ?>" data-status="<?php p($_['websiteVerification']) ?>" src="
 					<?php
-					switch($_['websiteVerification']) {
-						case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
-							p(image_path('core', 'actions/verifying.svg'));
-							break;
-						case \OC\Accounts\AccountManager::VERIFIED:
-							p(image_path('core', 'actions/verified.svg'));
-							break;
-						default:
-							p(image_path('core', 'actions/verify.svg'));
-					}
-					?>"
+                    switch($_['websiteVerification']) {
+                        case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
+                            p(image_path('core', 'actions/verifying.svg'));
+                            break;
+                        case \OC\Accounts\AccountManager::VERIFIED:
+                            p(image_path('core', 'actions/verified.svg'));
+                            break;
+                        default:
+                            p(image_path('core', 'actions/verify.svg'));
+                    }
+                    ?>"
 					<?php if($_['websiteVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['websiteVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) print_unescaped(' class="verify-action"') ?>
 					>
 					<div class="verification-dialog popovermenu bubble menu">
@@ -274,17 +274,17 @@ 
 				<div class="verify <?php if ($_['twitter'] === ''  || $_['twitterScope'] !== 'public') p('hidden'); ?>">
 					<img id="verify-twitter" title="<?php p($_['twitterMessage']); ?>" data-status="<?php p($_['twitterVerification']) ?>" src="
 					<?php
-					switch($_['twitterVerification']) {
-						case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
-							p(image_path('core', 'actions/verifying.svg'));
-							break;
-						case \OC\Accounts\AccountManager::VERIFIED:
-							p(image_path('core', 'actions/verified.svg'));
-							break;
-						default:
-							p(image_path('core', 'actions/verify.svg'));
-					}
-					?>"
+                    switch($_['twitterVerification']) {
+                        case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
+                            p(image_path('core', 'actions/verifying.svg'));
+                            break;
+                        case \OC\Accounts\AccountManager::VERIFIED:
+                            p(image_path('core', 'actions/verified.svg'));
+                            break;
+                        default:
+                            p(image_path('core', 'actions/verify.svg'));
+                    }
+                    ?>"
 					<?php if($_['twitterVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['twitterVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) print_unescaped(' class="verify-action"') ?>
 					>
 					<div class="verification-dialog popovermenu bubble menu">

Spacing +60 added lines, -60 removed lines

@@ -69,7 +69,7 @@ 
 					</div>
 				</div>
 				<span class="icon-checkmark hidden"></span>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
 				<input type="hidden" id="avatarscope" value="<?php p($_['avatarScope']) ?>">
 				<?php } ?>
 			</form>
@@ -87,14 +87,14 @@ 
 					<p class="quotatext">
 						<?php if ($_['quota'] === \OCP\Files\FileInfo::SPACE_UNLIMITED): ?>
 							<?php print_unescaped($l->t('You are using <strong>%s</strong>',
-								[$_['usage']]));?>
+								[$_['usage']])); ?>
 						<?php else: ?>
 							<?php print_unescaped($l->t('You are using <strong>%1$s</strong> of <strong>%2$s</strong> (<strong>%3$s %%</strong>)',
-								[$_['usage'], $_['total_space'],  $_['usage_relative']]));?>
+								[$_['usage'], $_['total_space'], $_['usage_relative']])); ?>
 						<?php endif ?>
 					</p>
 				</div>
-				<progress value="<?php p($_['usage_relative']); ?>" max="100"<?php if($_['usage_relative'] > 80): ?> class="warn" <?php endif; ?>></progress>
+				<progress value="<?php p($_['usage_relative']); ?>" max="100"<?php if ($_['usage_relative'] > 80): ?> class="warn" <?php endif; ?>></progress>
 			</div>
 		</div>
 	</div>
@@ -111,15 +111,15 @@ 
 					</div>
 				</h3>
 				<input type="text" id="displayname" name="displayname"
-					<?php if(!$_['displayNameChangeSupported']) { print_unescaped('class="hidden"'); } ?>
+					<?php if (!$_['displayNameChangeSupported']) { print_unescaped('class="hidden"'); } ?>
 					   value="<?php p($_['displayName']) ?>"
 					   autocomplete="on" autocapitalize="none" autocorrect="off" />
-				<?php if(!$_['displayNameChangeSupported']) { ?>
-					<span><?php if(isset($_['displayName']) && !empty($_['displayName'])) { p($_['displayName']); } else { p($l->t('No display name set')); } ?></span>
+				<?php if (!$_['displayNameChangeSupported']) { ?>
+					<span><?php if (isset($_['displayName']) && !empty($_['displayName'])) { p($_['displayName']); } else { p($l->t('No display name set')); } ?></span>
 				<?php } ?>
 				<span class="icon-checkmark hidden"></span>
 				<span class="icon-error hidden" ></span>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
 					<input type="hidden" id="displaynamescope" value="<?php p($_['displayNameScope']) ?>">
 				<?php } ?>
 			</form>
@@ -134,10 +134,10 @@ 
 						</span>
 					</div>
 				</h3>
-				<div class="verify <?php if ($_['email'] === ''  || $_['emailScope'] !== 'public') p('hidden'); ?>">
+				<div class="verify <?php if ($_['email'] === '' || $_['emailScope'] !== 'public') p('hidden'); ?>">
 					<img id="verify-email" title="<?php p($_['emailMessage']); ?>" data-status="<?php p($_['emailVerification']) ?>" src="
 				<?php
-					switch($_['emailVerification']) {
+					switch ($_['emailVerification']) {
 						case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
 							p(image_path('core', 'actions/verifying.svg'));
 							break;
@@ -150,18 +150,18 @@ 
 					?>">
 				</div>
 				<input type="email" name="email" id="email" value="<?php p($_['email']); ?>"
-					<?php if(!$_['displayNameChangeSupported']) { print_unescaped('class="hidden"'); } ?>
+					<?php if (!$_['displayNameChangeSupported']) { print_unescaped('class="hidden"'); } ?>
 					   placeholder="<?php p($l->t('Your email address')); ?>"
 					   autocomplete="on" autocapitalize="none" autocorrect="off" />
 			   	<span class="icon-checkmark hidden"></span>
 				<span class="icon-error hidden" ></span>
-				<?php if(!$_['displayNameChangeSupported']) { ?>
-					<span><?php if(isset($_['email']) && !empty($_['email'])) { p($_['email']); } else { p($l->t('No email address set')); }?></span>
+				<?php if (!$_['displayNameChangeSupported']) { ?>
+					<span><?php if (isset($_['email']) && !empty($_['email'])) { p($_['email']); } else { p($l->t('No email address set')); }?></span>
 				<?php } ?>
-				<?php if($_['displayNameChangeSupported']) { ?>
+				<?php if ($_['displayNameChangeSupported']) { ?>
 					<em><?php p($l->t('For password reset and notifications')); ?></em>
 				<?php } ?>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
 					<input type="hidden" id="emailscope" value="<?php p($_['emailScope']) ?>">
 				<?php } ?>
 			</form>
@@ -177,12 +177,12 @@ 
 						</span>
 					</div>
 				</h3>
-				<input type="tel" id="phone" name="phone" <?php if(!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"'); ?>
+				<input type="tel" id="phone" name="phone" <?php if (!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"'); ?>
 					   value="<?php p($_['phone']) ?>"
 					   placeholder="<?php p($l->t('Your phone number')); ?>"
 				       autocomplete="on" autocapitalize="none" autocorrect="off" />
 				<span class="icon-checkmark hidden"></span>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
 				<input type="hidden" id="phonescope" value="<?php p($_['phoneScope']) ?>">
 				<?php } ?>
 			</form>
@@ -199,12 +199,12 @@ 
 						</span>
 					</div>
 				</h3>
-				<input type="text" id="address" name="address" <?php if(!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"');  ?>
+				<input type="text" id="address" name="address" <?php if (!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"'); ?>
 					   placeholder="<?php p($l->t('Your postal address')); ?>"
 					   value="<?php p($_['address']) ?>"
 					   autocomplete="on" autocapitalize="none" autocorrect="off" />
 				<span class="icon-checkmark hidden"></span>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
 				<input type="hidden" id="addressscope" value="<?php p($_['addressScope']) ?>">
 				<?php } ?>
 			</form>
@@ -221,11 +221,11 @@ 
 						</span>
 					</div>
 				</h3>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
-				<div class="verify <?php if ($_['website'] === ''  || $_['websiteScope'] !== 'public') p('hidden'); ?>">
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
+				<div class="verify <?php if ($_['website'] === '' || $_['websiteScope'] !== 'public') p('hidden'); ?>">
 					<img id="verify-website" title="<?php p($_['websiteMessage']); ?>" data-status="<?php p($_['websiteVerification']) ?>" src="
 					<?php
-					switch($_['websiteVerification']) {
+					switch ($_['websiteVerification']) {
 						case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
 							p(image_path('core', 'actions/verifying.svg'));
 							break;
@@ -236,13 +236,13 @@ 
 							p(image_path('core', 'actions/verify.svg'));
 					}
 					?>"
-					<?php if($_['websiteVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['websiteVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) print_unescaped(' class="verify-action"') ?>
+					<?php if ($_['websiteVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['websiteVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) print_unescaped(' class="verify-action"') ?>
 					>
 					<div class="verification-dialog popovermenu bubble menu">
 						<div class="verification-dialog-content">
 							<p class="explainVerification"></p>
 							<p class="verificationCode"></p>
-							<p><?php p($l->t('It can take up to 24 hours before the account is displayed as verified.'));?></p>
+							<p><?php p($l->t('It can take up to 24 hours before the account is displayed as verified.')); ?></p>
 						</div>
 					</div>
 				</div>
@@ -250,10 +250,10 @@ 
 				<input type="url" name="website" id="website" value="<?php p($_['website']); ?>"
 				       placeholder="<?php p($l->t('Link https://…')); ?>"
 				       autocomplete="on" autocapitalize="none" autocorrect="off"
-					   <?php if(!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"');  ?>
+					   <?php if (!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"'); ?>
 				/>
 				<span class="icon-checkmark hidden"></span>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
 				<input type="hidden" id="websitescope" value="<?php p($_['websiteScope']) ?>">
 				<?php } ?>
 			</form>
@@ -270,11 +270,11 @@ 
 						</span>
 					</div>
 				</h3>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
-				<div class="verify <?php if ($_['twitter'] === ''  || $_['twitterScope'] !== 'public') p('hidden'); ?>">
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
+				<div class="verify <?php if ($_['twitter'] === '' || $_['twitterScope'] !== 'public') p('hidden'); ?>">
 					<img id="verify-twitter" title="<?php p($_['twitterMessage']); ?>" data-status="<?php p($_['twitterVerification']) ?>" src="
 					<?php
-					switch($_['twitterVerification']) {
+					switch ($_['twitterVerification']) {
 						case \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS:
 							p(image_path('core', 'actions/verifying.svg'));
 							break;
@@ -285,13 +285,13 @@ 
 							p(image_path('core', 'actions/verify.svg'));
 					}
 					?>"
-					<?php if($_['twitterVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['twitterVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) print_unescaped(' class="verify-action"') ?>
+					<?php if ($_['twitterVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['twitterVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) print_unescaped(' class="verify-action"') ?>
 					>
 					<div class="verification-dialog popovermenu bubble menu">
 						<div class="verification-dialog-content">
 							<p class="explainVerification"></p>
 							<p class="verificationCode"></p>
-							<p><?php p($l->t('It can take up to 24 hours before the account is displayed as verified.'));?></p>
+							<p><?php p($l->t('It can take up to 24 hours before the account is displayed as verified.')); ?></p>
 						</div>
 					</div>
 				</div>
@@ -299,10 +299,10 @@ 
 				<input type="text" name="twitter" id="twitter" value="<?php p($_['twitter']); ?>"
 					   placeholder="<?php p($l->t('Twitter handle @…')); ?>"
 					   autocomplete="on" autocapitalize="none" autocorrect="off"
-					   <?php if(!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"');  ?>
+					   <?php if (!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"'); ?>
 				/>
 				<span class="icon-checkmark hidden"></span>
-				<?php if($_['lookupServerUploadEnabled']) { ?>
+				<?php if ($_['lookupServerUploadEnabled']) { ?>
 				<input type="hidden" id="twitterscope" value="<?php p($_['twitterScope']) ?>">
 				<?php } ?>
 			</form>
@@ -315,27 +315,27 @@ 
 			<?php if (isset($_['activelanguage'])) { ?>
 				<form id="language" class="section">
 					<h3>
-						<label for="languageinput"><?php p($l->t('Language'));?></label>
+						<label for="languageinput"><?php p($l->t('Language')); ?></label>
 					</h3>
-					<select id="languageinput" name="lang" data-placeholder="<?php p($l->t('Language'));?>">
-						<option value="<?php p($_['activelanguage']['code']);?>">
-							<?php p($_['activelanguage']['name']);?>
+					<select id="languageinput" name="lang" data-placeholder="<?php p($l->t('Language')); ?>">
+						<option value="<?php p($_['activelanguage']['code']); ?>">
+							<?php p($_['activelanguage']['name']); ?>
 						</option>
-						<?php foreach($_['commonlanguages'] as $language):?>
-							<option value="<?php p($language['code']);?>">
-								<?php p($language['name']);?>
+						<?php foreach ($_['commonlanguages'] as $language):?>
+							<option value="<?php p($language['code']); ?>">
+								<?php p($language['name']); ?>
 							</option>
-						<?php endforeach;?>
+						<?php endforeach; ?>
 						<optgroup label="––––––––––"></optgroup>
-						<?php foreach($_['languages'] as $language):?>
-							<option value="<?php p($language['code']);?>">
-								<?php p($language['name']);?>
+						<?php foreach ($_['languages'] as $language):?>
+							<option value="<?php p($language['code']); ?>">
+								<?php p($language['name']); ?>
 							</option>
-						<?php endforeach;?>
+						<?php endforeach; ?>
 					</select>
 					<a href="https://www.transifex.com/nextcloud/nextcloud/"
 					   target="_blank" rel="noreferrer noopener">
-						<em><?php p($l->t('Help translate'));?></em>
+						<em><?php p($l->t('Help translate')); ?></em>
 					</a>
 				</form>
 			<?php } ?>
@@ -344,27 +344,27 @@ 
 			<?php if (isset($_['activelocale'])) { ?>
 				<form id="locale" class="section">
 					<h3>
-						<label for="localeinput"><?php p($l->t('Locale'));?></label>
+						<label for="localeinput"><?php p($l->t('Locale')); ?></label>
 					</h3>
-					<select id="localeinput" name="lang" data-placeholder="<?php p($l->t('Locale'));?>">
-						<option value="<?php p($_['activelocale']['code']);?>">
-							<?php p($_['activelocale']['name']);?>
+					<select id="localeinput" name="lang" data-placeholder="<?php p($l->t('Locale')); ?>">
+						<option value="<?php p($_['activelocale']['code']); ?>">
+							<?php p($_['activelocale']['name']); ?>
 						</option>
 						<optgroup label="––––––––––"></optgroup>
-						<?php foreach($_['localesForLanguage'] as $locale):?>
-							<option value="<?php p($locale['code']);?>">
-								<?php p($locale['name']);?>
+						<?php foreach ($_['localesForLanguage'] as $locale):?>
+							<option value="<?php p($locale['code']); ?>">
+								<?php p($locale['name']); ?>
 							</option>
-						<?php endforeach;?>
+						<?php endforeach; ?>
 						<optgroup label="––––––––––"></optgroup>
-						<option value="<?php p($_['activelocale']['code']);?>">
-							<?php p($_['activelocale']['name']);?>
+						<option value="<?php p($_['activelocale']['code']); ?>">
+							<?php p($_['activelocale']['name']); ?>
 						</option>
-						<?php foreach($_['locales'] as $locale):?>
-							<option value="<?php p($locale['code']);?>">
-								<?php p($locale['name']);?>
+						<?php foreach ($_['locales'] as $locale):?>
+							<option value="<?php p($locale['code']); ?>">
+								<?php p($locale['name']); ?>
 							</option>
-						<?php endforeach;?>
+						<?php endforeach; ?>
 					</select>
 					<div id="localeexample" class="personal-info icon-timezone">
 						<p>

Braces +48 added lines, -15 removed lines

@@ -57,8 +57,11 @@ 
 						<div class="hidden button icon-delete svg" id="removeavatar" title="<?php p($l->t('Remove image')); ?>"></div>
 						<input type="file" name="files[]" id="uploadavatar" class="hiddenuploadfield">
 						<p><em><?php p($l->t('png or jpg, max. 20 MB')); ?></em></p>
-					<?php else: ?>
-						<?php p($l->t('Picture provided by original account')); ?>
+					<?php else {
+    : ?>
+						<?php p($l->t('Picture provided by original account'));
+}
+?>
 					<?php endif; ?>
 				</div>
 
@@ -88,9 +91,12 @@ 
 						<?php if ($_['quota'] === \OCP\Files\FileInfo::SPACE_UNLIMITED): ?>
 							<?php print_unescaped($l->t('You are using <strong>%s</strong>',
 								[$_['usage']]));?>
-						<?php else: ?>
+						<?php else {
+    : ?>
 							<?php print_unescaped($l->t('You are using <strong>%1$s</strong> of <strong>%2$s</strong> (<strong>%3$s %%</strong>)',
-								[$_['usage'], $_['total_space'],  $_['usage_relative']]));?>
+								[$_['usage'], $_['total_space'],  $_['usage_relative']]));
+}
+?>
 						<?php endif ?>
 					</p>
 				</div>
@@ -134,7 +140,10 @@ 
 						</span>
 					</div>
 				</h3>
-				<div class="verify <?php if ($_['email'] === ''  || $_['emailScope'] !== 'public') p('hidden'); ?>">
+				<div class="verify <?php if ($_['email'] === ''  || $_['emailScope'] !== 'public') {
+    p('hidden');
+}
+?>">
 					<img id="verify-email" title="<?php p($_['emailMessage']); ?>" data-status="<?php p($_['emailVerification']) ?>" src="
 				<?php
 					switch($_['emailVerification']) {
@@ -177,7 +186,10 @@ 
 						</span>
 					</div>
 				</h3>
-				<input type="tel" id="phone" name="phone" <?php if(!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"'); ?>
+				<input type="tel" id="phone" name="phone" <?php if(!$_['lookupServerUploadEnabled']) {
+    print_unescaped('disabled="1"');
+}
+?>
 					   value="<?php p($_['phone']) ?>"
 					   placeholder="<?php p($l->t('Your phone number')); ?>"
 				       autocomplete="on" autocapitalize="none" autocorrect="off" />
@@ -199,7 +211,10 @@ 
 						</span>
 					</div>
 				</h3>
-				<input type="text" id="address" name="address" <?php if(!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"');  ?>
+				<input type="text" id="address" name="address" <?php if(!$_['lookupServerUploadEnabled']) {
+    print_unescaped('disabled="1"');
+}
+?>
 					   placeholder="<?php p($l->t('Your postal address')); ?>"
 					   value="<?php p($_['address']) ?>"
 					   autocomplete="on" autocapitalize="none" autocorrect="off" />
@@ -222,7 +237,10 @@ 
 					</div>
 				</h3>
 				<?php if($_['lookupServerUploadEnabled']) { ?>
-				<div class="verify <?php if ($_['website'] === ''  || $_['websiteScope'] !== 'public') p('hidden'); ?>">
+				<div class="verify <?php if ($_['website'] === ''  || $_['websiteScope'] !== 'public') {
+    p('hidden');
+}
+?>">
 					<img id="verify-website" title="<?php p($_['websiteMessage']); ?>" data-status="<?php p($_['websiteVerification']) ?>" src="
 					<?php
 					switch($_['websiteVerification']) {
@@ -236,13 +254,16 @@ 
 							p(image_path('core', 'actions/verify.svg'));
 					}
 					?>"
-					<?php if($_['websiteVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['websiteVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) print_unescaped(' class="verify-action"') ?>
+					<?php if($_['websiteVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['websiteVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) {
+    print_unescaped(' class="verify-action"') ?>
 					>
 					<div class="verification-dialog popovermenu bubble menu">
 						<div class="verification-dialog-content">
 							<p class="explainVerification"></p>
 							<p class="verificationCode"></p>
-							<p><?php p($l->t('It can take up to 24 hours before the account is displayed as verified.'));?></p>
+							<p><?php p($l->t('It can take up to 24 hours before the account is displayed as verified.'));
+}
+?></p>
 						</div>
 					</div>
 				</div>
@@ -250,7 +271,10 @@ 
 				<input type="url" name="website" id="website" value="<?php p($_['website']); ?>"
 				       placeholder="<?php p($l->t('Link https://…')); ?>"
 				       autocomplete="on" autocapitalize="none" autocorrect="off"
-					   <?php if(!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"');  ?>
+					   <?php if(!$_['lookupServerUploadEnabled']) {
+    print_unescaped('disabled="1"');
+}
+?>
 				/>
 				<span class="icon-checkmark hidden"></span>
 				<?php if($_['lookupServerUploadEnabled']) { ?>
@@ -271,7 +295,10 @@ 
 					</div>
 				</h3>
 				<?php if($_['lookupServerUploadEnabled']) { ?>
-				<div class="verify <?php if ($_['twitter'] === ''  || $_['twitterScope'] !== 'public') p('hidden'); ?>">
+				<div class="verify <?php if ($_['twitter'] === ''  || $_['twitterScope'] !== 'public') {
+    p('hidden');
+}
+?>">
 					<img id="verify-twitter" title="<?php p($_['twitterMessage']); ?>" data-status="<?php p($_['twitterVerification']) ?>" src="
 					<?php
 					switch($_['twitterVerification']) {
@@ -285,13 +312,16 @@ 
 							p(image_path('core', 'actions/verify.svg'));
 					}
 					?>"
-					<?php if($_['twitterVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['twitterVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) print_unescaped(' class="verify-action"') ?>
+					<?php if($_['twitterVerification'] === \OC\Accounts\AccountManager::VERIFICATION_IN_PROGRESS || $_['twitterVerification'] === \OC\Accounts\AccountManager::NOT_VERIFIED) {
+    print_unescaped(' class="verify-action"') ?>
 					>
 					<div class="verification-dialog popovermenu bubble menu">
 						<div class="verification-dialog-content">
 							<p class="explainVerification"></p>
 							<p class="verificationCode"></p>
-							<p><?php p($l->t('It can take up to 24 hours before the account is displayed as verified.'));?></p>
+							<p><?php p($l->t('It can take up to 24 hours before the account is displayed as verified.'));
+}
+?></p>
 						</div>
 					</div>
 				</div>
@@ -299,7 +329,10 @@ 
 				<input type="text" name="twitter" id="twitter" value="<?php p($_['twitter']); ?>"
 					   placeholder="<?php p($l->t('Twitter handle @…')); ?>"
 					   autocomplete="on" autocapitalize="none" autocorrect="off"
-					   <?php if(!$_['lookupServerUploadEnabled']) print_unescaped('disabled="1"');  ?>
+					   <?php if(!$_['lookupServerUploadEnabled']) {
+    print_unescaped('disabled="1"');
+}
+?>
 				/>
 				<span class="icon-checkmark hidden"></span>
 				<?php if($_['lookupServerUploadEnabled']) { ?>