nextcloud / server

apps/files_sharing/lib/External/Manager.php

Indentation +555 added lines, -555 removed lines

@@ -48,600 +48,600 @@
 use OCP\Share\IShare;
 
 class Manager {
-	public const STORAGE = '\OCA\Files_Sharing\External\Storage';
-
-	/**
-	 * @var string
-	 */
-	private $uid;
-
-	/**
-	 * @var IDBConnection
-	 */
-	private $connection;
-
-	/**
-	 * @var \OC\Files\Mount\Manager
-	 */
-	private $mountManager;
-
-	/**
-	 * @var IStorageFactory
-	 */
-	private $storageLoader;
-
-	/**
-	 * @var IClientService
-	 */
-	private $clientService;
-
-	/**
-	 * @var IManager
-	 */
-	private $notificationManager;
-
-	/**
-	 * @var IDiscoveryService
-	 */
-	private $discoveryService;
-
-	/** @var ICloudFederationProviderManager */
-	private $cloudFederationProviderManager;
-
-	/** @var ICloudFederationFactory */
-	private $cloudFederationFactory;
-
-	/** @var IGroupManager  */
-	private $groupManager;
-
-	/** @var IUserManager */
-	private $userManager;
-
-	/**
-	 * @param IDBConnection $connection
-	 * @param \OC\Files\Mount\Manager $mountManager
-	 * @param IStorageFactory $storageLoader
-	 * @param IClientService $clientService
-	 * @param IManager $notificationManager
-	 * @param IDiscoveryService $discoveryService
-	 * @param ICloudFederationProviderManager $cloudFederationProviderManager
-	 * @param ICloudFederationFactory $cloudFederationFactory
-	 * @param IGroupManager $groupManager
-	 * @param IUserManager $userManager
-	 * @param string $uid
-	 */
-	public function __construct(IDBConnection $connection,
-								\OC\Files\Mount\Manager $mountManager,
-								IStorageFactory $storageLoader,
-								IClientService $clientService,
-								IManager $notificationManager,
-								IDiscoveryService $discoveryService,
-								ICloudFederationProviderManager $cloudFederationProviderManager,
-								ICloudFederationFactory $cloudFederationFactory,
-								IGroupManager $groupManager,
-								IUserManager $userManager,
-								$uid) {
-		$this->connection = $connection;
-		$this->mountManager = $mountManager;
-		$this->storageLoader = $storageLoader;
-		$this->clientService = $clientService;
-		$this->uid = $uid;
-		$this->notificationManager = $notificationManager;
-		$this->discoveryService = $discoveryService;
-		$this->cloudFederationProviderManager = $cloudFederationProviderManager;
-		$this->cloudFederationFactory = $cloudFederationFactory;
-		$this->groupManager = $groupManager;
-		$this->userManager = $userManager;
-	}
-
-	/**
-	 * add new server-to-server share
-	 *
-	 * @param string $remote
-	 * @param string $token
-	 * @param string $password
-	 * @param string $name
-	 * @param string $owner
-	 * @param int $shareType
-	 * @param boolean $accepted
-	 * @param string $user
-	 * @param int $remoteId
-	 * @param int $parent
-	 * @return Mount|null
-	 * @throws \Doctrine\DBAL\DBALException
-	 */
-	public function addShare($remote, $token, $password, $name, $owner, $shareType, $accepted=false, $user = null, $remoteId = -1, $parent = -1) {
-		$user = $user ? $user : $this->uid;
-		$accepted = $accepted ? IShare::STATUS_ACCEPTED : IShare::STATUS_PENDING;
-		$name = Filesystem::normalizePath('/' . $name);
-
-		if ($accepted !== IShare::STATUS_ACCEPTED) {
-			// To avoid conflicts with the mount point generation later,
-			// we only use a temporary mount point name here. The real
-			// mount point name will be generated when accepting the share,
-			// using the original share item name.
-			$tmpMountPointName = '{{TemporaryMountPointName#' . $name . '}}';
-			$mountPoint = $tmpMountPointName;
-			$hash = md5($tmpMountPointName);
-			$data = [
-				'remote'		=> $remote,
-				'share_token'	=> $token,
-				'password'		=> $password,
-				'name'			=> $name,
-				'owner'			=> $owner,
-				'user'			=> $user,
-				'mountpoint'	=> $mountPoint,
-				'mountpoint_hash'	=> $hash,
-				'accepted'		=> $accepted,
-				'remote_id'		=> $remoteId,
-				'share_type'    => $shareType,
-			];
-
-			$i = 1;
-			while (!$this->connection->insertIfNotExist('*PREFIX*share_external', $data, ['user', 'mountpoint_hash'])) {
-				// The external share already exists for the user
-				$data['mountpoint'] = $tmpMountPointName . '-' . $i;
-				$data['mountpoint_hash'] = md5($data['mountpoint']);
-				$i++;
-			}
-			return null;
-		}
-
-		$mountPoint = Files::buildNotExistingFileName('/', $name);
-		$mountPoint = Filesystem::normalizePath('/' . $mountPoint);
-		$hash = md5($mountPoint);
-
-		$this->writeShareToDb($remote, $token, $password, $name, $owner, $user, $mountPoint, $hash, $accepted, $remoteId, $parent, $shareType);
-
-		$options = [
-			'remote'	=> $remote,
-			'token'		=> $token,
-			'password'	=> $password,
-			'mountpoint'	=> $mountPoint,
-			'owner'		=> $owner
-		];
-		return $this->mountShare($options);
-	}
-
-	/**
-	 * write remote share to the database
-	 *
-	 * @param $remote
-	 * @param $token
-	 * @param $password
-	 * @param $name
-	 * @param $owner
-	 * @param $user
-	 * @param $mountPoint
-	 * @param $hash
-	 * @param $accepted
-	 * @param $remoteId
-	 * @param $parent
-	 * @param $shareType
-	 * @return bool
-	 */
-	private function writeShareToDb($remote, $token, $password, $name, $owner, $user, $mountPoint, $hash, $accepted, $remoteId, $parent, $shareType) {
-		$query = $this->connection->prepare('
+    public const STORAGE = '\OCA\Files_Sharing\External\Storage';
+
+    /**
+     * @var string
+     */
+    private $uid;
+
+    /**
+     * @var IDBConnection
+     */
+    private $connection;
+
+    /**
+     * @var \OC\Files\Mount\Manager
+     */
+    private $mountManager;
+
+    /**
+     * @var IStorageFactory
+     */
+    private $storageLoader;
+
+    /**
+     * @var IClientService
+     */
+    private $clientService;
+
+    /**
+     * @var IManager
+     */
+    private $notificationManager;
+
+    /**
+     * @var IDiscoveryService
+     */
+    private $discoveryService;
+
+    /** @var ICloudFederationProviderManager */
+    private $cloudFederationProviderManager;
+
+    /** @var ICloudFederationFactory */
+    private $cloudFederationFactory;
+
+    /** @var IGroupManager  */
+    private $groupManager;
+
+    /** @var IUserManager */
+    private $userManager;
+
+    /**
+     * @param IDBConnection $connection
+     * @param \OC\Files\Mount\Manager $mountManager
+     * @param IStorageFactory $storageLoader
+     * @param IClientService $clientService
+     * @param IManager $notificationManager
+     * @param IDiscoveryService $discoveryService
+     * @param ICloudFederationProviderManager $cloudFederationProviderManager
+     * @param ICloudFederationFactory $cloudFederationFactory
+     * @param IGroupManager $groupManager
+     * @param IUserManager $userManager
+     * @param string $uid
+     */
+    public function __construct(IDBConnection $connection,
+                                \OC\Files\Mount\Manager $mountManager,
+                                IStorageFactory $storageLoader,
+                                IClientService $clientService,
+                                IManager $notificationManager,
+                                IDiscoveryService $discoveryService,
+                                ICloudFederationProviderManager $cloudFederationProviderManager,
+                                ICloudFederationFactory $cloudFederationFactory,
+                                IGroupManager $groupManager,
+                                IUserManager $userManager,
+                                $uid) {
+        $this->connection = $connection;
+        $this->mountManager = $mountManager;
+        $this->storageLoader = $storageLoader;
+        $this->clientService = $clientService;
+        $this->uid = $uid;
+        $this->notificationManager = $notificationManager;
+        $this->discoveryService = $discoveryService;
+        $this->cloudFederationProviderManager = $cloudFederationProviderManager;
+        $this->cloudFederationFactory = $cloudFederationFactory;
+        $this->groupManager = $groupManager;
+        $this->userManager = $userManager;
+    }
+
+    /**
+     * add new server-to-server share
+     *
+     * @param string $remote
+     * @param string $token
+     * @param string $password
+     * @param string $name
+     * @param string $owner
+     * @param int $shareType
+     * @param boolean $accepted
+     * @param string $user
+     * @param int $remoteId
+     * @param int $parent
+     * @return Mount|null
+     * @throws \Doctrine\DBAL\DBALException
+     */
+    public function addShare($remote, $token, $password, $name, $owner, $shareType, $accepted=false, $user = null, $remoteId = -1, $parent = -1) {
+        $user = $user ? $user : $this->uid;
+        $accepted = $accepted ? IShare::STATUS_ACCEPTED : IShare::STATUS_PENDING;
+        $name = Filesystem::normalizePath('/' . $name);
+
+        if ($accepted !== IShare::STATUS_ACCEPTED) {
+            // To avoid conflicts with the mount point generation later,
+            // we only use a temporary mount point name here. The real
+            // mount point name will be generated when accepting the share,
+            // using the original share item name.
+            $tmpMountPointName = '{{TemporaryMountPointName#' . $name . '}}';
+            $mountPoint = $tmpMountPointName;
+            $hash = md5($tmpMountPointName);
+            $data = [
+                'remote'		=> $remote,
+                'share_token'	=> $token,
+                'password'		=> $password,
+                'name'			=> $name,
+                'owner'			=> $owner,
+                'user'			=> $user,
+                'mountpoint'	=> $mountPoint,
+                'mountpoint_hash'	=> $hash,
+                'accepted'		=> $accepted,
+                'remote_id'		=> $remoteId,
+                'share_type'    => $shareType,
+            ];
+
+            $i = 1;
+            while (!$this->connection->insertIfNotExist('*PREFIX*share_external', $data, ['user', 'mountpoint_hash'])) {
+                // The external share already exists for the user
+                $data['mountpoint'] = $tmpMountPointName . '-' . $i;
+                $data['mountpoint_hash'] = md5($data['mountpoint']);
+                $i++;
+            }
+            return null;
+        }
+
+        $mountPoint = Files::buildNotExistingFileName('/', $name);
+        $mountPoint = Filesystem::normalizePath('/' . $mountPoint);
+        $hash = md5($mountPoint);
+
+        $this->writeShareToDb($remote, $token, $password, $name, $owner, $user, $mountPoint, $hash, $accepted, $remoteId, $parent, $shareType);
+
+        $options = [
+            'remote'	=> $remote,
+            'token'		=> $token,
+            'password'	=> $password,
+            'mountpoint'	=> $mountPoint,
+            'owner'		=> $owner
+        ];
+        return $this->mountShare($options);
+    }
+
+    /**
+     * write remote share to the database
+     *
+     * @param $remote
+     * @param $token
+     * @param $password
+     * @param $name
+     * @param $owner
+     * @param $user
+     * @param $mountPoint
+     * @param $hash
+     * @param $accepted
+     * @param $remoteId
+     * @param $parent
+     * @param $shareType
+     * @return bool
+     */
+    private function writeShareToDb($remote, $token, $password, $name, $owner, $user, $mountPoint, $hash, $accepted, $remoteId, $parent, $shareType) {
+        $query = $this->connection->prepare('
 				INSERT INTO `*PREFIX*share_external`
 					(`remote`, `share_token`, `password`, `name`, `owner`, `user`, `mountpoint`, `mountpoint_hash`, `accepted`, `remote_id`, `parent`, `share_type`)
 				VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
 			');
-		return $query->execute([$remote, $token, $password, $name, $owner, $user, $mountPoint, $hash, $accepted, $remoteId, $parent, $shareType]);
-	}
-
-	/**
-	 * get share
-	 *
-	 * @param int $id share id
-	 * @return mixed share of false
-	 */
-	public function getShare($id) {
-		$getShare = $this->connection->prepare('
+        return $query->execute([$remote, $token, $password, $name, $owner, $user, $mountPoint, $hash, $accepted, $remoteId, $parent, $shareType]);
+    }
+
+    /**
+     * get share
+     *
+     * @param int $id share id
+     * @return mixed share of false
+     */
+    public function getShare($id) {
+        $getShare = $this->connection->prepare('
 			SELECT `id`, `remote`, `remote_id`, `share_token`, `name`, `owner`, `user`, `mountpoint`, `accepted`, `parent`, `share_type`, `password`, `mountpoint_hash`
 			FROM  `*PREFIX*share_external`
 			WHERE `id` = ?');
-		$result = $getShare->execute([$id]);
-
-		$share = $result ? $getShare->fetch() : [];
-
-		$validShare = is_array($share) && isset($share['share_type']) && isset($share['user']);
-
-		// check if the user is allowed to access it
-		if ($validShare && (int)$share['share_type'] === Share::SHARE_TYPE_USER && $share['user'] === $this->uid) {
-			return $share;
-		} elseif ($validShare && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
-			$user = $this->userManager->get($this->uid);
-			if ($this->groupManager->get($share['user'])->inGroup($user)) {
-				return $share;
-			}
-		}
-
-		return false;
-	}
-
-	/**
-	 * accept server-to-server share
-	 *
-	 * @param int $id
-	 * @return bool True if the share could be accepted, false otherwise
-	 */
-	public function acceptShare($id) {
-		$share = $this->getShare($id);
-		$result = false;
-
-		if ($share) {
-			\OC_Util::setupFS($this->uid);
-			$shareFolder = Helper::getShareFolder();
-			$mountPoint = Files::buildNotExistingFileName($shareFolder, $share['name']);
-			$mountPoint = Filesystem::normalizePath($mountPoint);
-			$hash = md5($mountPoint);
-			$userShareAccepted = false;
-
-			if ((int)$share['share_type'] === Share::SHARE_TYPE_USER) {
-				$acceptShare = $this->connection->prepare('
+        $result = $getShare->execute([$id]);
+
+        $share = $result ? $getShare->fetch() : [];
+
+        $validShare = is_array($share) && isset($share['share_type']) && isset($share['user']);
+
+        // check if the user is allowed to access it
+        if ($validShare && (int)$share['share_type'] === Share::SHARE_TYPE_USER && $share['user'] === $this->uid) {
+            return $share;
+        } elseif ($validShare && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
+            $user = $this->userManager->get($this->uid);
+            if ($this->groupManager->get($share['user'])->inGroup($user)) {
+                return $share;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * accept server-to-server share
+     *
+     * @param int $id
+     * @return bool True if the share could be accepted, false otherwise
+     */
+    public function acceptShare($id) {
+        $share = $this->getShare($id);
+        $result = false;
+
+        if ($share) {
+            \OC_Util::setupFS($this->uid);
+            $shareFolder = Helper::getShareFolder();
+            $mountPoint = Files::buildNotExistingFileName($shareFolder, $share['name']);
+            $mountPoint = Filesystem::normalizePath($mountPoint);
+            $hash = md5($mountPoint);
+            $userShareAccepted = false;
+
+            if ((int)$share['share_type'] === Share::SHARE_TYPE_USER) {
+                $acceptShare = $this->connection->prepare('
 				UPDATE `*PREFIX*share_external`
 				SET `accepted` = ?,
 					`mountpoint` = ?,
 					`mountpoint_hash` = ?
 				WHERE `id` = ? AND `user` = ?');
-				$userShareAccepted = $acceptShare->execute([1, $mountPoint, $hash, $id, $this->uid]);
-			} else {
-				$result = $this->writeShareToDb(
-					$share['remote'],
-					$share['share_token'],
-					$share['password'],
-					$share['name'],
-					$share['owner'],
-					$this->uid,
-					$mountPoint, $hash, 1,
-					$share['remote_id'],
-					$id,
-					$share['share_type']);
-			}
-			if ($userShareAccepted === true) {
-				$this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'accept');
-				\OC_Hook::emit(Share::class, 'federated_share_added', ['server' => $share['remote']]);
-				$result = true;
-			}
-		}
-
-		// Make sure the user has no notification for something that does not exist anymore.
-		$this->processNotification($id);
-
-		return $result;
-	}
-
-	/**
-	 * decline server-to-server share
-	 *
-	 * @param int $id
-	 * @return bool True if the share could be declined, false otherwise
-	 */
-	public function declineShare($id) {
-		$share = $this->getShare($id);
-		$result = false;
-
-		if ($share && (int)$share['share_type'] === Share::SHARE_TYPE_USER) {
-			$removeShare = $this->connection->prepare('
+                $userShareAccepted = $acceptShare->execute([1, $mountPoint, $hash, $id, $this->uid]);
+            } else {
+                $result = $this->writeShareToDb(
+                    $share['remote'],
+                    $share['share_token'],
+                    $share['password'],
+                    $share['name'],
+                    $share['owner'],
+                    $this->uid,
+                    $mountPoint, $hash, 1,
+                    $share['remote_id'],
+                    $id,
+                    $share['share_type']);
+            }
+            if ($userShareAccepted === true) {
+                $this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'accept');
+                \OC_Hook::emit(Share::class, 'federated_share_added', ['server' => $share['remote']]);
+                $result = true;
+            }
+        }
+
+        // Make sure the user has no notification for something that does not exist anymore.
+        $this->processNotification($id);
+
+        return $result;
+    }
+
+    /**
+     * decline server-to-server share
+     *
+     * @param int $id
+     * @return bool True if the share could be declined, false otherwise
+     */
+    public function declineShare($id) {
+        $share = $this->getShare($id);
+        $result = false;
+
+        if ($share && (int)$share['share_type'] === Share::SHARE_TYPE_USER) {
+            $removeShare = $this->connection->prepare('
 				DELETE FROM `*PREFIX*share_external` WHERE `id` = ? AND `user` = ?');
-			$removeShare->execute([$id, $this->uid]);
-			$this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'decline');
-
-			$this->processNotification($id);
-			$result = true;
-		} elseif ($share && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
-			$result = $this->writeShareToDb(
-				$share['remote'],
-				$share['share_token'],
-				$share['password'],
-				$share['name'],
-				$share['owner'],
-				$this->uid,
-				$share['mountpoint'],
-				$share['mountpoint_hash'],
-				0,
-				$share['remote_id'],
-				$id,
-				$share['share_type']);
-			$this->processNotification($id);
-		}
-
-		return $result;
-	}
-
-	/**
-	 * @param int $remoteShare
-	 */
-	public function processNotification($remoteShare) {
-		$filter = $this->notificationManager->createNotification();
-		$filter->setApp('files_sharing')
-			->setUser($this->uid)
-			->setObject('remote_share', (int) $remoteShare);
-		$this->notificationManager->markProcessed($filter);
-	}
-
-	/**
-	 * inform remote server whether server-to-server share was accepted/declined
-	 *
-	 * @param string $remote
-	 * @param string $token
-	 * @param int $remoteId Share id on the remote host
-	 * @param string $feedback
-	 * @return boolean
-	 */
-	private function sendFeedbackToRemote($remote, $token, $remoteId, $feedback) {
-		$result = $this->tryOCMEndPoint($remote, $token, $remoteId, $feedback);
-
-		if ($result === true) {
-			return true;
-		}
-
-		$federationEndpoints = $this->discoveryService->discover($remote, 'FEDERATED_SHARING');
-		$endpoint = isset($federationEndpoints['share']) ? $federationEndpoints['share'] : '/ocs/v2.php/cloud/shares';
-
-		$url = rtrim($remote, '/') . $endpoint . '/' . $remoteId . '/' . $feedback . '?format=' . Share::RESPONSE_FORMAT;
-		$fields = ['token' => $token];
-
-		$client = $this->clientService->newClient();
-
-		try {
-			$response = $client->post(
-				$url,
-				[
-					'body' => $fields,
-					'connect_timeout' => 10,
-				]
-			);
-		} catch (\Exception $e) {
-			return false;
-		}
-
-		$status = json_decode($response->getBody(), true);
-
-		return ($status['ocs']['meta']['statuscode'] === 100 || $status['ocs']['meta']['statuscode'] === 200);
-	}
-
-	/**
-	 * try send accept message to ocm end-point
-	 *
-	 * @param string $remoteDomain
-	 * @param string $token
-	 * @param $remoteId id of the share
-	 * @param string $feedback
-	 * @return bool
-	 */
-	protected function tryOCMEndPoint($remoteDomain, $token, $remoteId, $feedback) {
-		switch ($feedback) {
-			case 'accept':
-				$notification = $this->cloudFederationFactory->getCloudFederationNotification();
-				$notification->setMessage(
-					'SHARE_ACCEPTED',
-					'file',
-					$remoteId,
-					[
-						'sharedSecret' => $token,
-						'message' => 'Recipient accept the share'
-					]
-
-				);
-				return $this->cloudFederationProviderManager->sendNotification($remoteDomain, $notification);
-			case 'decline':
-				$notification = $this->cloudFederationFactory->getCloudFederationNotification();
-				$notification->setMessage(
-					'SHARE_DECLINED',
-					'file',
-					$remoteId,
-					[
-						'sharedSecret' => $token,
-						'message' => 'Recipient declined the share'
-					]
-
-				);
-				return $this->cloudFederationProviderManager->sendNotification($remoteDomain, $notification);
-		}
-
-		return false;
-	}
-
-
-	/**
-	 * remove '/user/files' from the path and trailing slashes
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	protected function stripPath($path) {
-		$prefix = '/' . $this->uid . '/files';
-		return rtrim(substr($path, strlen($prefix)), '/');
-	}
-
-	public function getMount($data) {
-		$data['manager'] = $this;
-		$mountPoint = '/' . $this->uid . '/files' . $data['mountpoint'];
-		$data['mountpoint'] = $mountPoint;
-		$data['certificateManager'] = \OC::$server->getCertificateManager($this->uid);
-		return new Mount(self::STORAGE, $mountPoint, $data, $this, $this->storageLoader);
-	}
-
-	/**
-	 * @param array $data
-	 * @return Mount
-	 */
-	protected function mountShare($data) {
-		$mount = $this->getMount($data);
-		$this->mountManager->addMount($mount);
-		return $mount;
-	}
-
-	/**
-	 * @return \OC\Files\Mount\Manager
-	 */
-	public function getMountManager() {
-		return $this->mountManager;
-	}
-
-	/**
-	 * @param string $source
-	 * @param string $target
-	 * @return bool
-	 */
-	public function setMountPoint($source, $target) {
-		$source = $this->stripPath($source);
-		$target = $this->stripPath($target);
-		$sourceHash = md5($source);
-		$targetHash = md5($target);
-
-		$query = $this->connection->prepare('
+            $removeShare->execute([$id, $this->uid]);
+            $this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'decline');
+
+            $this->processNotification($id);
+            $result = true;
+        } elseif ($share && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
+            $result = $this->writeShareToDb(
+                $share['remote'],
+                $share['share_token'],
+                $share['password'],
+                $share['name'],
+                $share['owner'],
+                $this->uid,
+                $share['mountpoint'],
+                $share['mountpoint_hash'],
+                0,
+                $share['remote_id'],
+                $id,
+                $share['share_type']);
+            $this->processNotification($id);
+        }
+
+        return $result;
+    }
+
+    /**
+     * @param int $remoteShare
+     */
+    public function processNotification($remoteShare) {
+        $filter = $this->notificationManager->createNotification();
+        $filter->setApp('files_sharing')
+            ->setUser($this->uid)
+            ->setObject('remote_share', (int) $remoteShare);
+        $this->notificationManager->markProcessed($filter);
+    }
+
+    /**
+     * inform remote server whether server-to-server share was accepted/declined
+     *
+     * @param string $remote
+     * @param string $token
+     * @param int $remoteId Share id on the remote host
+     * @param string $feedback
+     * @return boolean
+     */
+    private function sendFeedbackToRemote($remote, $token, $remoteId, $feedback) {
+        $result = $this->tryOCMEndPoint($remote, $token, $remoteId, $feedback);
+
+        if ($result === true) {
+            return true;
+        }
+
+        $federationEndpoints = $this->discoveryService->discover($remote, 'FEDERATED_SHARING');
+        $endpoint = isset($federationEndpoints['share']) ? $federationEndpoints['share'] : '/ocs/v2.php/cloud/shares';
+
+        $url = rtrim($remote, '/') . $endpoint . '/' . $remoteId . '/' . $feedback . '?format=' . Share::RESPONSE_FORMAT;
+        $fields = ['token' => $token];
+
+        $client = $this->clientService->newClient();
+
+        try {
+            $response = $client->post(
+                $url,
+                [
+                    'body' => $fields,
+                    'connect_timeout' => 10,
+                ]
+            );
+        } catch (\Exception $e) {
+            return false;
+        }
+
+        $status = json_decode($response->getBody(), true);
+
+        return ($status['ocs']['meta']['statuscode'] === 100 || $status['ocs']['meta']['statuscode'] === 200);
+    }
+
+    /**
+     * try send accept message to ocm end-point
+     *
+     * @param string $remoteDomain
+     * @param string $token
+     * @param $remoteId id of the share
+     * @param string $feedback
+     * @return bool
+     */
+    protected function tryOCMEndPoint($remoteDomain, $token, $remoteId, $feedback) {
+        switch ($feedback) {
+            case 'accept':
+                $notification = $this->cloudFederationFactory->getCloudFederationNotification();
+                $notification->setMessage(
+                    'SHARE_ACCEPTED',
+                    'file',
+                    $remoteId,
+                    [
+                        'sharedSecret' => $token,
+                        'message' => 'Recipient accept the share'
+                    ]
+
+                );
+                return $this->cloudFederationProviderManager->sendNotification($remoteDomain, $notification);
+            case 'decline':
+                $notification = $this->cloudFederationFactory->getCloudFederationNotification();
+                $notification->setMessage(
+                    'SHARE_DECLINED',
+                    'file',
+                    $remoteId,
+                    [
+                        'sharedSecret' => $token,
+                        'message' => 'Recipient declined the share'
+                    ]
+
+                );
+                return $this->cloudFederationProviderManager->sendNotification($remoteDomain, $notification);
+        }
+
+        return false;
+    }
+
+
+    /**
+     * remove '/user/files' from the path and trailing slashes
+     *
+     * @param string $path
+     * @return string
+     */
+    protected function stripPath($path) {
+        $prefix = '/' . $this->uid . '/files';
+        return rtrim(substr($path, strlen($prefix)), '/');
+    }
+
+    public function getMount($data) {
+        $data['manager'] = $this;
+        $mountPoint = '/' . $this->uid . '/files' . $data['mountpoint'];
+        $data['mountpoint'] = $mountPoint;
+        $data['certificateManager'] = \OC::$server->getCertificateManager($this->uid);
+        return new Mount(self::STORAGE, $mountPoint, $data, $this, $this->storageLoader);
+    }
+
+    /**
+     * @param array $data
+     * @return Mount
+     */
+    protected function mountShare($data) {
+        $mount = $this->getMount($data);
+        $this->mountManager->addMount($mount);
+        return $mount;
+    }
+
+    /**
+     * @return \OC\Files\Mount\Manager
+     */
+    public function getMountManager() {
+        return $this->mountManager;
+    }
+
+    /**
+     * @param string $source
+     * @param string $target
+     * @return bool
+     */
+    public function setMountPoint($source, $target) {
+        $source = $this->stripPath($source);
+        $target = $this->stripPath($target);
+        $sourceHash = md5($source);
+        $targetHash = md5($target);
+
+        $query = $this->connection->prepare('
 			UPDATE `*PREFIX*share_external`
 			SET `mountpoint` = ?, `mountpoint_hash` = ?
 			WHERE `mountpoint_hash` = ?
 			AND `user` = ?
 		');
-		$result = (bool)$query->execute([$target, $targetHash, $sourceHash, $this->uid]);
+        $result = (bool)$query->execute([$target, $targetHash, $sourceHash, $this->uid]);
 
-		return $result;
-	}
+        return $result;
+    }
 
-	public function removeShare($mountPoint) {
-		$mountPointObj = $this->mountManager->find($mountPoint);
-		$id = $mountPointObj->getStorage()->getCache()->getId('');
+    public function removeShare($mountPoint) {
+        $mountPointObj = $this->mountManager->find($mountPoint);
+        $id = $mountPointObj->getStorage()->getCache()->getId('');
 
-		$mountPoint = $this->stripPath($mountPoint);
-		$hash = md5($mountPoint);
+        $mountPoint = $this->stripPath($mountPoint);
+        $hash = md5($mountPoint);
 
-		$getShare = $this->connection->prepare('
+        $getShare = $this->connection->prepare('
 			SELECT `remote`, `share_token`, `remote_id`, `share_type`, `id`
 			FROM  `*PREFIX*share_external`
 			WHERE `mountpoint_hash` = ? AND `user` = ?');
-		$result = $getShare->execute([$hash, $this->uid]);
-
-		$share = $getShare->fetch();
-		$getShare->closeCursor();
-		if ($result && $share !== false && (int)$share['share_type'] === Share::SHARE_TYPE_USER) {
-			try {
-				$this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'decline');
-			} catch (\Throwable $e) {
-				// if we fail to notify the remote (probably cause the remote is down)
-				// we still want the share to be gone to prevent undeletable remotes
-			}
-
-			$query = $this->connection->prepare('
+        $result = $getShare->execute([$hash, $this->uid]);
+
+        $share = $getShare->fetch();
+        $getShare->closeCursor();
+        if ($result && $share !== false && (int)$share['share_type'] === Share::SHARE_TYPE_USER) {
+            try {
+                $this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'decline');
+            } catch (\Throwable $e) {
+                // if we fail to notify the remote (probably cause the remote is down)
+                // we still want the share to be gone to prevent undeletable remotes
+            }
+
+            $query = $this->connection->prepare('
 			DELETE FROM `*PREFIX*share_external`
 			WHERE `id` = ?
 			');
-			$result = (bool)$query->execute([(int)$share['id']]);
-		} elseif ($result && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
-			$query = $this->connection->prepare('
+            $result = (bool)$query->execute([(int)$share['id']]);
+        } elseif ($result && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
+            $query = $this->connection->prepare('
 				UPDATE `*PREFIX*share_external`
 				SET `accepted` = ?
 				WHERE `id` = ?');
-			$result = (bool)$query->execute([0, (int)$share['id']]);
-		}
-
-		if ($result) {
-			$this->removeReShares($id);
-		}
-
-		return $result;
-	}
-
-	/**
-	 * remove re-shares from share table and mapping in the federated_reshares table
-	 *
-	 * @param $mountPointId
-	 */
-	protected function removeReShares($mountPointId) {
-		$selectQuery = $this->connection->getQueryBuilder();
-		$query = $this->connection->getQueryBuilder();
-		$selectQuery->select('id')->from('share')
-			->where($selectQuery->expr()->eq('file_source', $query->createNamedParameter($mountPointId)));
-		$select = $selectQuery->getSQL();
-
-
-		$query->delete('federated_reshares')
-			->where($query->expr()->in('share_id', $query->createFunction('(' . $select . ')')));
-		$query->execute();
-
-		$deleteReShares = $this->connection->getQueryBuilder();
-		$deleteReShares->delete('share')
-			->where($deleteReShares->expr()->eq('file_source', $deleteReShares->createNamedParameter($mountPointId)));
-		$deleteReShares->execute();
-	}
-
-	/**
-	 * remove all shares for user $uid if the user was deleted
-	 *
-	 * @param string $uid
-	 * @return bool
-	 */
-	public function removeUserShares($uid) {
-		$getShare = $this->connection->prepare('
+            $result = (bool)$query->execute([0, (int)$share['id']]);
+        }
+
+        if ($result) {
+            $this->removeReShares($id);
+        }
+
+        return $result;
+    }
+
+    /**
+     * remove re-shares from share table and mapping in the federated_reshares table
+     *
+     * @param $mountPointId
+     */
+    protected function removeReShares($mountPointId) {
+        $selectQuery = $this->connection->getQueryBuilder();
+        $query = $this->connection->getQueryBuilder();
+        $selectQuery->select('id')->from('share')
+            ->where($selectQuery->expr()->eq('file_source', $query->createNamedParameter($mountPointId)));
+        $select = $selectQuery->getSQL();
+
+
+        $query->delete('federated_reshares')
+            ->where($query->expr()->in('share_id', $query->createFunction('(' . $select . ')')));
+        $query->execute();
+
+        $deleteReShares = $this->connection->getQueryBuilder();
+        $deleteReShares->delete('share')
+            ->where($deleteReShares->expr()->eq('file_source', $deleteReShares->createNamedParameter($mountPointId)));
+        $deleteReShares->execute();
+    }
+
+    /**
+     * remove all shares for user $uid if the user was deleted
+     *
+     * @param string $uid
+     * @return bool
+     */
+    public function removeUserShares($uid) {
+        $getShare = $this->connection->prepare('
 			SELECT `remote`, `share_token`, `remote_id`
 			FROM  `*PREFIX*share_external`
 			WHERE `user` = ?');
-		$result = $getShare->execute([$uid]);
+        $result = $getShare->execute([$uid]);
 
-		if ($result) {
-			$shares = $getShare->fetchAll();
-			foreach ($shares as $share) {
-				$this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'decline');
-			}
-		}
+        if ($result) {
+            $shares = $getShare->fetchAll();
+            foreach ($shares as $share) {
+                $this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'decline');
+            }
+        }
 
-		$query = $this->connection->prepare('
+        $query = $this->connection->prepare('
 			DELETE FROM `*PREFIX*share_external`
 			WHERE `user` = ?
 		');
-		return (bool)$query->execute([$uid]);
-	}
-
-	/**
-	 * return a list of shares which are not yet accepted by the user
-	 *
-	 * @return array list of open server-to-server shares
-	 */
-	public function getOpenShares() {
-		return $this->getShares(false);
-	}
-
-	/**
-	 * return a list of shares which are accepted by the user
-	 *
-	 * @return array list of accepted server-to-server shares
-	 */
-	public function getAcceptedShares() {
-		return $this->getShares(true);
-	}
-
-	/**
-	 * return a list of shares for the user
-	 *
-	 * @param bool|null $accepted True for accepted only,
-	 *                            false for not accepted,
-	 *                            null for all shares of the user
-	 * @return array list of open server-to-server shares
-	 */
-	private function getShares($accepted) {
-		$user = $this->userManager->get($this->uid);
-		$groups = $this->groupManager->getUserGroups($user);
-		$userGroups = [];
-		foreach ($groups as $group) {
-			$userGroups[] = $group->getGID();
-		}
-
-		$query = 'SELECT `id`, `remote`, `remote_id`, `share_token`, `name`, `owner`, `user`, `mountpoint`, `accepted`
+        return (bool)$query->execute([$uid]);
+    }
+
+    /**
+     * return a list of shares which are not yet accepted by the user
+     *
+     * @return array list of open server-to-server shares
+     */
+    public function getOpenShares() {
+        return $this->getShares(false);
+    }
+
+    /**
+     * return a list of shares which are accepted by the user
+     *
+     * @return array list of accepted server-to-server shares
+     */
+    public function getAcceptedShares() {
+        return $this->getShares(true);
+    }
+
+    /**
+     * return a list of shares for the user
+     *
+     * @param bool|null $accepted True for accepted only,
+     *                            false for not accepted,
+     *                            null for all shares of the user
+     * @return array list of open server-to-server shares
+     */
+    private function getShares($accepted) {
+        $user = $this->userManager->get($this->uid);
+        $groups = $this->groupManager->getUserGroups($user);
+        $userGroups = [];
+        foreach ($groups as $group) {
+            $userGroups[] = $group->getGID();
+        }
+
+        $query = 'SELECT `id`, `remote`, `remote_id`, `share_token`, `name`, `owner`, `user`, `mountpoint`, `accepted`
 		          FROM `*PREFIX*share_external`
 				  WHERE (`user` = ? OR `user` IN (?))';
-		$parameters = [$this->uid, implode(',',$userGroups)];
-		if (!is_null($accepted)) {
-			$query .= ' AND `accepted` = ?';
-			$parameters[] = (int) $accepted;
-		}
-		$query .= ' ORDER BY `id` ASC';
-
-		$shares = $this->connection->prepare($query);
-		$result = $shares->execute($parameters);
-
-		return $result ? $shares->fetchAll() : [];
-	}
+        $parameters = [$this->uid, implode(',',$userGroups)];
+        if (!is_null($accepted)) {
+            $query .= ' AND `accepted` = ?';
+            $parameters[] = (int) $accepted;
+        }
+        $query .= ' ORDER BY `id` ASC';
+
+        $shares = $this->connection->prepare($query);
+        $result = $shares->execute($parameters);
+
+        return $result ? $shares->fetchAll() : [];
+    }
 }

Spacing +21 added lines, -21 removed lines

@@ -150,17 +150,17 @@ 
 	 * @return Mount|null
 	 * @throws \Doctrine\DBAL\DBALException
 	 */
-	public function addShare($remote, $token, $password, $name, $owner, $shareType, $accepted=false, $user = null, $remoteId = -1, $parent = -1) {
+	public function addShare($remote, $token, $password, $name, $owner, $shareType, $accepted = false, $user = null, $remoteId = -1, $parent = -1) {
 		$user = $user ? $user : $this->uid;
 		$accepted = $accepted ? IShare::STATUS_ACCEPTED : IShare::STATUS_PENDING;
-		$name = Filesystem::normalizePath('/' . $name);
+		$name = Filesystem::normalizePath('/'.$name);
 
 		if ($accepted !== IShare::STATUS_ACCEPTED) {
 			// To avoid conflicts with the mount point generation later,
 			// we only use a temporary mount point name here. The real
 			// mount point name will be generated when accepting the share,
 			// using the original share item name.
-			$tmpMountPointName = '{{TemporaryMountPointName#' . $name . '}}';
+			$tmpMountPointName = '{{TemporaryMountPointName#'.$name.'}}';
 			$mountPoint = $tmpMountPointName;
 			$hash = md5($tmpMountPointName);
 			$data = [
@@ -180,7 +180,7 @@ 
 			$i = 1;
 			while (!$this->connection->insertIfNotExist('*PREFIX*share_external', $data, ['user', 'mountpoint_hash'])) {
 				// The external share already exists for the user
-				$data['mountpoint'] = $tmpMountPointName . '-' . $i;
+				$data['mountpoint'] = $tmpMountPointName.'-'.$i;
 				$data['mountpoint_hash'] = md5($data['mountpoint']);
 				$i++;
 			}
@@ -188,7 +188,7 @@ 
 		}
 
 		$mountPoint = Files::buildNotExistingFileName('/', $name);
-		$mountPoint = Filesystem::normalizePath('/' . $mountPoint);
+		$mountPoint = Filesystem::normalizePath('/'.$mountPoint);
 		$hash = md5($mountPoint);
 
 		$this->writeShareToDb($remote, $token, $password, $name, $owner, $user, $mountPoint, $hash, $accepted, $remoteId, $parent, $shareType);
@@ -247,9 +247,9 @@ 
 		$validShare = is_array($share) && isset($share['share_type']) && isset($share['user']);
 
 		// check if the user is allowed to access it
-		if ($validShare && (int)$share['share_type'] === Share::SHARE_TYPE_USER && $share['user'] === $this->uid) {
+		if ($validShare && (int) $share['share_type'] === Share::SHARE_TYPE_USER && $share['user'] === $this->uid) {
 			return $share;
-		} elseif ($validShare && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
+		} elseif ($validShare && (int) $share['share_type'] === Share::SHARE_TYPE_GROUP) {
 			$user = $this->userManager->get($this->uid);
 			if ($this->groupManager->get($share['user'])->inGroup($user)) {
 				return $share;
@@ -277,7 +277,7 @@ 
 			$hash = md5($mountPoint);
 			$userShareAccepted = false;
 
-			if ((int)$share['share_type'] === Share::SHARE_TYPE_USER) {
+			if ((int) $share['share_type'] === Share::SHARE_TYPE_USER) {
 				$acceptShare = $this->connection->prepare('
 				UPDATE `*PREFIX*share_external`
 				SET `accepted` = ?,
@@ -321,7 +321,7 @@ 
 		$share = $this->getShare($id);
 		$result = false;
 
-		if ($share && (int)$share['share_type'] === Share::SHARE_TYPE_USER) {
+		if ($share && (int) $share['share_type'] === Share::SHARE_TYPE_USER) {
 			$removeShare = $this->connection->prepare('
 				DELETE FROM `*PREFIX*share_external` WHERE `id` = ? AND `user` = ?');
 			$removeShare->execute([$id, $this->uid]);
@@ -329,7 +329,7 @@ 
 
 			$this->processNotification($id);
 			$result = true;
-		} elseif ($share && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
+		} elseif ($share && (int) $share['share_type'] === Share::SHARE_TYPE_GROUP) {
 			$result = $this->writeShareToDb(
 				$share['remote'],
 				$share['share_token'],
@@ -379,7 +379,7 @@ 
 		$federationEndpoints = $this->discoveryService->discover($remote, 'FEDERATED_SHARING');
 		$endpoint = isset($federationEndpoints['share']) ? $federationEndpoints['share'] : '/ocs/v2.php/cloud/shares';
 
-		$url = rtrim($remote, '/') . $endpoint . '/' . $remoteId . '/' . $feedback . '?format=' . Share::RESPONSE_FORMAT;
+		$url = rtrim($remote, '/').$endpoint.'/'.$remoteId.'/'.$feedback.'?format='.Share::RESPONSE_FORMAT;
 		$fields = ['token' => $token];
 
 		$client = $this->clientService->newClient();
@@ -451,13 +451,13 @@ 
 	 * @return string
 	 */
 	protected function stripPath($path) {
-		$prefix = '/' . $this->uid . '/files';
+		$prefix = '/'.$this->uid.'/files';
 		return rtrim(substr($path, strlen($prefix)), '/');
 	}
 
 	public function getMount($data) {
 		$data['manager'] = $this;
-		$mountPoint = '/' . $this->uid . '/files' . $data['mountpoint'];
+		$mountPoint = '/'.$this->uid.'/files'.$data['mountpoint'];
 		$data['mountpoint'] = $mountPoint;
 		$data['certificateManager'] = \OC::$server->getCertificateManager($this->uid);
 		return new Mount(self::STORAGE, $mountPoint, $data, $this, $this->storageLoader);
@@ -497,7 +497,7 @@ 
 			WHERE `mountpoint_hash` = ?
 			AND `user` = ?
 		');
-		$result = (bool)$query->execute([$target, $targetHash, $sourceHash, $this->uid]);
+		$result = (bool) $query->execute([$target, $targetHash, $sourceHash, $this->uid]);
 
 		return $result;
 	}
@@ -517,7 +517,7 @@ 
 
 		$share = $getShare->fetch();
 		$getShare->closeCursor();
-		if ($result && $share !== false && (int)$share['share_type'] === Share::SHARE_TYPE_USER) {
+		if ($result && $share !== false && (int) $share['share_type'] === Share::SHARE_TYPE_USER) {
 			try {
 				$this->sendFeedbackToRemote($share['remote'], $share['share_token'], $share['remote_id'], 'decline');
 			} catch (\Throwable $e) {
@@ -529,13 +529,13 @@ 
 			DELETE FROM `*PREFIX*share_external`
 			WHERE `id` = ?
 			');
-			$result = (bool)$query->execute([(int)$share['id']]);
-		} elseif ($result && (int)$share['share_type'] === Share::SHARE_TYPE_GROUP) {
+			$result = (bool) $query->execute([(int) $share['id']]);
+		} elseif ($result && (int) $share['share_type'] === Share::SHARE_TYPE_GROUP) {
 			$query = $this->connection->prepare('
 				UPDATE `*PREFIX*share_external`
 				SET `accepted` = ?
 				WHERE `id` = ?');
-			$result = (bool)$query->execute([0, (int)$share['id']]);
+			$result = (bool) $query->execute([0, (int) $share['id']]);
 		}
 
 		if ($result) {
@@ -559,7 +559,7 @@ 
 
 
 		$query->delete('federated_reshares')
-			->where($query->expr()->in('share_id', $query->createFunction('(' . $select . ')')));
+			->where($query->expr()->in('share_id', $query->createFunction('('.$select.')')));
 		$query->execute();
 
 		$deleteReShares = $this->connection->getQueryBuilder();
@@ -592,7 +592,7 @@ 
 			DELETE FROM `*PREFIX*share_external`
 			WHERE `user` = ?
 		');
-		return (bool)$query->execute([$uid]);
+		return (bool) $query->execute([$uid]);
 	}
 
 	/**
@@ -632,7 +632,7 @@ 
 		$query = 'SELECT `id`, `remote`, `remote_id`, `share_token`, `name`, `owner`, `user`, `mountpoint`, `accepted`
 		          FROM `*PREFIX*share_external`
 				  WHERE (`user` = ? OR `user` IN (?))';
-		$parameters = [$this->uid, implode(',',$userGroups)];
+		$parameters = [$this->uid, implode(',', $userGroups)];
 		if (!is_null($accepted)) {
 			$query .= ' AND `accepted` = ?';
 			$parameters[] = (int) $accepted;