nextcloud /
server
| Total Complexity | 86 |
| Total Lines | 582 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like User_LDAP often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use User_LDAP, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 54 | class User_LDAP extends BackendUtility implements \OCP\IUserBackend, \OCP\UserInterface, IUserLDAP { |
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| 55 | /** @var \OCP\IConfig */ |
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| 56 | protected $ocConfig; |
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| 57 | |||
| 58 | /** @var INotificationManager */ |
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| 59 | protected $notificationManager; |
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| 60 | |||
| 61 | /** @var UserPluginManager */ |
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| 62 | protected $userPluginManager; |
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| 63 | |||
| 64 | /** |
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| 65 | * @param Access $access |
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| 66 | * @param \OCP\IConfig $ocConfig |
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| 67 | * @param \OCP\Notification\IManager $notificationManager |
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| 68 | * @param IUserSession $userSession |
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| 69 | */ |
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| 70 | public function __construct(Access $access, IConfig $ocConfig, INotificationManager $notificationManager, IUserSession $userSession, UserPluginManager $userPluginManager) { |
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| 71 | parent::__construct($access); |
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| 72 | $this->ocConfig = $ocConfig; |
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| 73 | $this->notificationManager = $notificationManager; |
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| 74 | $this->userPluginManager = $userPluginManager; |
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| 75 | } |
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| 76 | |||
| 77 | /** |
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| 78 | * checks whether the user is allowed to change his avatar in Nextcloud |
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| 79 | * |
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| 80 | * @param string $uid the Nextcloud user name |
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| 81 | * @return boolean either the user can or cannot |
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| 82 | * @throws \Exception |
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| 83 | */ |
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| 84 | public function canChangeAvatar($uid) { |
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| 85 | if ($this->userPluginManager->implementsActions(Backend::PROVIDE_AVATAR)) { |
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| 86 | return $this->userPluginManager->canChangeAvatar($uid); |
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| 87 | } |
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| 88 | |||
| 89 | if(!$this->implementsActions(Backend::PROVIDE_AVATAR)) { |
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| 90 | return true; |
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| 91 | } |
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| 92 | |||
| 93 | $user = $this->access->userManager->get($uid); |
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| 94 | if(!$user instanceof User) { |
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| 95 | return false; |
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| 96 | } |
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| 97 | $imageData = $user->getAvatarImage(); |
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| 98 | if($imageData === false) { |
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introduced
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| 99 | return true; |
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| 100 | } |
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| 101 | return !$user->updateAvatar(true); |
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| 102 | } |
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| 103 | |||
| 104 | /** |
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| 105 | * Return the username for the given login name, if available |
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| 106 | * |
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| 107 | * @param string $loginName |
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| 108 | * @return string|false |
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| 109 | * @throws \Exception |
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| 110 | */ |
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| 111 | public function loginName2UserName($loginName) { |
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| 112 | $cacheKey = 'loginName2UserName-' . $loginName; |
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| 113 | $username = $this->access->connection->getFromCache($cacheKey); |
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| 114 | |||
| 115 | if ($username !== null) { |
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| 116 | return $username; |
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| 117 | } |
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| 118 | |||
| 119 | try { |
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| 120 | $ldapRecord = $this->getLDAPUserByLoginName($loginName); |
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| 121 | $user = $this->access->userManager->get($ldapRecord['dn'][0]); |
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| 122 | if ($user === null || $user instanceof OfflineUser) { |
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| 123 | // this path is not really possible, however get() is documented |
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| 124 | // to return User, OfflineUser or null so we are very defensive here. |
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| 125 | $this->access->connection->writeToCache($cacheKey, false); |
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| 126 | return false; |
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| 127 | } |
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| 128 | $username = $user->getUsername(); |
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| 129 | $this->access->connection->writeToCache($cacheKey, $username); |
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| 130 | return $username; |
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| 131 | } catch (NotOnLDAP $e) { |
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| 132 | $this->access->connection->writeToCache($cacheKey, false); |
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| 133 | return false; |
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| 134 | } |
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| 135 | } |
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| 136 | |||
| 137 | /** |
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| 138 | * returns the username for the given LDAP DN, if available |
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| 139 | * |
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| 140 | * @param string $dn |
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| 141 | * @return string|false with the username |
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| 142 | */ |
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| 143 | public function dn2UserName($dn) { |
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| 144 | return $this->access->dn2username($dn); |
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| 145 | } |
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| 146 | |||
| 147 | /** |
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| 148 | * returns an LDAP record based on a given login name |
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| 149 | * |
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| 150 | * @param string $loginName |
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| 151 | * @return array |
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| 152 | * @throws NotOnLDAP |
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| 153 | */ |
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| 154 | public function getLDAPUserByLoginName($loginName) { |
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| 155 | //find out dn of the user name |
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| 156 | $attrs = $this->access->userManager->getAttributes(); |
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| 157 | $users = $this->access->fetchUsersByLoginName($loginName, $attrs); |
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| 158 | if(count($users) < 1) { |
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| 159 | throw new NotOnLDAP('No user available for the given login name on ' . |
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| 160 | $this->access->connection->ldapHost . ':' . $this->access->connection->ldapPort); |
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| 161 | } |
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| 162 | return $users[0]; |
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| 163 | } |
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| 164 | |||
| 165 | /** |
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| 166 | * Check if the password is correct without logging in the user |
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| 167 | * |
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| 168 | * @param string $uid The username |
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| 169 | * @param string $password The password |
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| 170 | * @return false|string |
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| 171 | */ |
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| 172 | public function checkPassword($uid, $password) { |
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| 173 | try { |
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| 174 | $ldapRecord = $this->getLDAPUserByLoginName($uid); |
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| 175 | } catch(NotOnLDAP $e) { |
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| 176 | \OC::$server->getLogger()->logException($e, ['app' => 'user_ldap', 'level' => ILogger::DEBUG]); |
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| 177 | return false; |
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| 178 | } |
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| 179 | $dn = $ldapRecord['dn'][0]; |
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| 180 | $user = $this->access->userManager->get($dn); |
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| 181 | |||
| 182 | if(!$user instanceof User) { |
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| 183 | Util::writeLog('user_ldap', |
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| 184 | 'LDAP Login: Could not get user object for DN ' . $dn . |
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| 185 | '. Maybe the LDAP entry has no set display name attribute?', |
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| 186 | ILogger::WARN); |
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| 187 | return false; |
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| 188 | } |
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| 189 | if($user->getUsername() !== false) { |
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| 190 | //are the credentials OK? |
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| 191 | if(!$this->access->areCredentialsValid($dn, $password)) { |
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| 192 | return false; |
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| 193 | } |
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| 194 | |||
| 195 | $this->access->cacheUserExists($user->getUsername()); |
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| 196 | $user->processAttributes($ldapRecord); |
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| 197 | $user->markLogin(); |
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| 198 | |||
| 199 | return $user->getUsername(); |
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| 200 | } |
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| 201 | |||
| 202 | return false; |
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| 203 | } |
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| 204 | |||
| 205 | /** |
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| 206 | * Set password |
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| 207 | * @param string $uid The username |
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| 208 | * @param string $password The new password |
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| 209 | * @return bool |
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| 210 | */ |
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| 211 | public function setPassword($uid, $password) { |
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| 212 | if ($this->userPluginManager->implementsActions(Backend::SET_PASSWORD)) { |
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| 213 | return $this->userPluginManager->setPassword($uid, $password); |
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| 214 | } |
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| 215 | |||
| 216 | $user = $this->access->userManager->get($uid); |
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| 217 | |||
| 218 | if(!$user instanceof User) { |
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| 219 | throw new \Exception('LDAP setPassword: Could not get user object for uid ' . $uid . |
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| 220 | '. Maybe the LDAP entry has no set display name attribute?'); |
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| 221 | } |
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| 222 | if($user->getUsername() !== false && $this->access->setPassword($user->getDN(), $password)) { |
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| 223 | $ldapDefaultPPolicyDN = $this->access->connection->ldapDefaultPPolicyDN; |
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| 224 | $turnOnPasswordChange = $this->access->connection->turnOnPasswordChange; |
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| 225 | if (!empty($ldapDefaultPPolicyDN) && ((int)$turnOnPasswordChange === 1)) { |
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| 226 | //remove last password expiry warning if any |
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| 227 | $notification = $this->notificationManager->createNotification(); |
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| 228 | $notification->setApp('user_ldap') |
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| 229 | ->setUser($uid) |
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| 230 | ->setObject('pwd_exp_warn', $uid) |
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| 231 | ; |
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| 232 | $this->notificationManager->markProcessed($notification); |
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| 233 | } |
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| 234 | return true; |
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| 235 | } |
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| 236 | |||
| 237 | return false; |
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| 238 | } |
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| 239 | |||
| 240 | /** |
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| 241 | * Get a list of all users |
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| 242 | * |
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| 243 | * @param string $search |
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| 244 | * @param integer $limit |
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| 245 | * @param integer $offset |
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| 246 | * @return string[] an array of all uids |
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| 247 | */ |
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| 248 | public function getUsers($search = '', $limit = 10, $offset = 0) { |
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| 249 | $search = $this->access->escapeFilterPart($search, true); |
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| 250 | $cachekey = 'getUsers-'.$search.'-'.$limit.'-'.$offset; |
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| 251 | |||
| 252 | //check if users are cached, if so return |
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| 253 | $ldap_users = $this->access->connection->getFromCache($cachekey); |
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| 254 | if(!is_null($ldap_users)) { |
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| 255 | return $ldap_users; |
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| 256 | } |
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| 257 | |||
| 258 | // if we'd pass -1 to LDAP search, we'd end up in a Protocol |
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| 259 | // error. With a limit of 0, we get 0 results. So we pass null. |
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| 260 | if($limit <= 0) { |
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| 261 | $limit = null; |
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| 262 | } |
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| 263 | $filter = $this->access->combineFilterWithAnd(array( |
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| 264 | $this->access->connection->ldapUserFilter, |
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| 265 | $this->access->connection->ldapUserDisplayName . '=*', |
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| 266 | $this->access->getFilterPartForUserSearch($search) |
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| 267 | )); |
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| 268 | |||
| 269 | Util::writeLog('user_ldap', |
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| 270 | 'getUsers: Options: search '.$search.' limit '.$limit.' offset '.$offset.' Filter: '.$filter, |
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| 271 | ILogger::DEBUG); |
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| 272 | //do the search and translate results to Nextcloud names |
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| 273 | $ldap_users = $this->access->fetchListOfUsers( |
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| 274 | $filter, |
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| 275 | $this->access->userManager->getAttributes(true), |
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| 276 | $limit, $offset); |
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| 277 | $ldap_users = $this->access->nextcloudUserNames($ldap_users); |
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| 278 | Util::writeLog('user_ldap', 'getUsers: '.count($ldap_users). ' Users found', ILogger::DEBUG); |
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| 279 | |||
| 280 | $this->access->connection->writeToCache($cachekey, $ldap_users); |
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| 281 | return $ldap_users; |
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| 282 | } |
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| 283 | |||
| 284 | /** |
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| 285 | * checks whether a user is still available on LDAP |
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| 286 | * |
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| 287 | * @param string|\OCA\User_LDAP\User\User $user either the Nextcloud user |
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| 288 | * name or an instance of that user |
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| 289 | * @return bool |
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| 290 | * @throws \Exception |
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| 291 | * @throws \OC\ServerNotAvailableException |
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| 292 | */ |
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| 293 | public function userExistsOnLDAP($user) { |
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| 294 | if(is_string($user)) { |
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| 295 | $user = $this->access->userManager->get($user); |
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| 296 | } |
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| 297 | if(is_null($user)) { |
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| 298 | return false; |
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| 299 | } |
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| 300 | $uid = $user instanceof User ? $user->getUsername() : $user->getOCName(); |
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| 301 | $cacheKey = 'userExistsOnLDAP' . $uid; |
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| 302 | $userExists = $this->access->connection->getFromCache($cacheKey); |
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| 303 | if(!is_null($userExists)) { |
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| 304 | return (bool)$userExists; |
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| 305 | } |
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| 306 | |||
| 307 | $dn = $user->getDN(); |
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| 308 | //check if user really still exists by reading its entry |
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| 309 | if(!is_array($this->access->readAttribute($dn, '', $this->access->connection->ldapUserFilter))) { |
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| 310 | try { |
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| 311 | $uuid = $this->access->getUserMapper()->getUUIDByDN($dn); |
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| 312 | if (!$uuid) { |
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| 313 | $this->access->connection->writeToCache($cacheKey, false); |
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| 314 | return false; |
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| 315 | } |
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| 316 | $newDn = $this->access->getUserDnByUuid($uuid); |
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| 317 | //check if renamed user is still valid by reapplying the ldap filter |
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| 318 | if ($newDn === $dn || !is_array($this->access->readAttribute($newDn, '', $this->access->connection->ldapUserFilter))) { |
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| 319 | $this->access->connection->writeToCache($cacheKey, false); |
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| 320 | return false; |
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| 321 | } |
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| 322 | $this->access->getUserMapper()->setDNbyUUID($newDn, $uuid); |
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| 323 | $this->access->connection->writeToCache($cacheKey, true); |
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| 324 | return true; |
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| 325 | } catch (ServerNotAvailableException $e) { |
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| 326 | throw $e; |
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| 327 | } catch (\Exception $e) { |
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| 328 | $this->access->connection->writeToCache($cacheKey, false); |
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| 329 | return false; |
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| 330 | } |
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| 331 | } |
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| 332 | |||
| 333 | if($user instanceof OfflineUser) { |
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| 334 | $user->unmark(); |
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| 335 | } |
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| 336 | |||
| 337 | $this->access->connection->writeToCache($cacheKey, true); |
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| 338 | return true; |
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| 339 | } |
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| 340 | |||
| 341 | /** |
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| 342 | * check if a user exists |
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| 343 | * @param string $uid the username |
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| 344 | * @return boolean |
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| 345 | * @throws \Exception when connection could not be established |
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| 346 | */ |
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| 347 | public function userExists($uid) { |
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| 348 | $userExists = $this->access->connection->getFromCache('userExists'.$uid); |
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| 349 | if(!is_null($userExists)) { |
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| 350 | return (bool)$userExists; |
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| 351 | } |
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| 352 | //getting dn, if false the user does not exist. If dn, he may be mapped only, requires more checking. |
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| 353 | $user = $this->access->userManager->get($uid); |
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| 354 | |||
| 355 | if(is_null($user)) { |
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| 356 | Util::writeLog('user_ldap', 'No DN found for '.$uid.' on '. |
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| 357 | $this->access->connection->ldapHost, ILogger::DEBUG); |
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| 358 | $this->access->connection->writeToCache('userExists'.$uid, false); |
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| 359 | return false; |
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| 360 | } |
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| 361 | |||
| 362 | $this->access->connection->writeToCache('userExists'.$uid, true); |
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| 363 | return true; |
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| 364 | } |
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| 365 | |||
| 366 | /** |
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| 367 | * returns whether a user was deleted in LDAP |
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| 368 | * |
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| 369 | * @param string $uid The username of the user to delete |
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| 370 | * @return bool |
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| 371 | */ |
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| 372 | public function deleteUser($uid) { |
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| 373 | if ($this->userPluginManager->canDeleteUser()) { |
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| 374 | $status = $this->userPluginManager->deleteUser($uid); |
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| 375 | if($status === false) { |
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| 376 | return false; |
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| 377 | } |
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| 378 | } |
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| 379 | |||
| 380 | $marked = $this->ocConfig->getUserValue($uid, 'user_ldap', 'isDeleted', 0); |
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| 381 | if((int)$marked === 0) { |
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| 382 | \OC::$server->getLogger()->notice( |
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| 383 | 'User '.$uid . ' is not marked as deleted, not cleaning up.', |
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| 384 | ['app' => 'user_ldap']); |
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| 385 | return false; |
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| 386 | } |
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| 387 | \OC::$server->getLogger()->info('Cleaning up after user ' . $uid, |
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| 388 | ['app' => 'user_ldap']); |
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| 389 | |||
| 390 | $this->access->getUserMapper()->unmap($uid); // we don't emit unassign signals here, since it is implicit to delete signals fired from core |
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| 391 | $this->access->userManager->invalidate($uid); |
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| 392 | return true; |
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| 393 | } |
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| 394 | |||
| 395 | /** |
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| 396 | * get the user's home directory |
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| 397 | * |
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| 398 | * @param string $uid the username |
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| 399 | * @return bool|string |
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| 400 | * @throws NoUserException |
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| 401 | * @throws \Exception |
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| 402 | */ |
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| 403 | public function getHome($uid) { |
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| 404 | // user Exists check required as it is not done in user proxy! |
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| 405 | if(!$this->userExists($uid)) { |
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| 406 | return false; |
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| 407 | } |
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| 408 | |||
| 409 | if ($this->userPluginManager->implementsActions(Backend::GET_HOME)) { |
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| 410 | return $this->userPluginManager->getHome($uid); |
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| 411 | } |
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| 412 | |||
| 413 | $cacheKey = 'getHome'.$uid; |
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| 414 | $path = $this->access->connection->getFromCache($cacheKey); |
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| 415 | if(!is_null($path)) { |
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| 416 | return $path; |
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| 417 | } |
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| 418 | |||
| 419 | // early return path if it is a deleted user |
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| 420 | $user = $this->access->userManager->get($uid); |
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| 421 | if($user instanceof User || $user instanceof OfflineUser) { |
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| 422 | $path = $user->getHomePath() ?: false; |
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| 423 | } else { |
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| 424 | throw new NoUserException($uid . ' is not a valid user anymore'); |
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| 425 | } |
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| 426 | |||
| 427 | $this->access->cacheUserHome($uid, $path); |
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| 428 | return $path; |
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| 429 | } |
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| 430 | |||
| 431 | /** |
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| 432 | * get display name of the user |
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| 433 | * @param string $uid user ID of the user |
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| 434 | * @return string|false display name |
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| 435 | */ |
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| 436 | public function getDisplayName($uid) { |
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| 437 | if ($this->userPluginManager->implementsActions(Backend::GET_DISPLAYNAME)) { |
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| 438 | return $this->userPluginManager->getDisplayName($uid); |
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| 439 | } |
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| 440 | |||
| 441 | if(!$this->userExists($uid)) { |
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| 442 | return false; |
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| 443 | } |
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| 444 | |||
| 445 | $cacheKey = 'getDisplayName'.$uid; |
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| 446 | if(!is_null($displayName = $this->access->connection->getFromCache($cacheKey))) { |
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| 447 | return $displayName; |
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| 448 | } |
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| 449 | |||
| 450 | //Check whether the display name is configured to have a 2nd feature |
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| 451 | $additionalAttribute = $this->access->connection->ldapUserDisplayName2; |
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| 452 | $displayName2 = ''; |
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| 453 | if ($additionalAttribute !== '') { |
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| 454 | $displayName2 = $this->access->readAttribute( |
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| 455 | $this->access->username2dn($uid), |
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| 456 | $additionalAttribute); |
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| 457 | } |
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| 458 | |||
| 459 | $displayName = $this->access->readAttribute( |
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| 460 | $this->access->username2dn($uid), |
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| 461 | $this->access->connection->ldapUserDisplayName); |
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| 462 | |||
| 463 | if($displayName && (count($displayName) > 0)) { |
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| 464 | $displayName = $displayName[0]; |
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| 465 | |||
| 466 | if (is_array($displayName2)){ |
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| 467 | $displayName2 = count($displayName2) > 0 ? $displayName2[0] : ''; |
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| 468 | } |
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| 469 | |||
| 470 | $user = $this->access->userManager->get($uid); |
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| 471 | if ($user instanceof User) { |
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| 472 | $displayName = $user->composeAndStoreDisplayName($displayName, $displayName2); |
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| 473 | $this->access->connection->writeToCache($cacheKey, $displayName); |
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| 474 | } |
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| 475 | if ($user instanceof OfflineUser) { |
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| 476 | /** @var OfflineUser $user*/ |
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| 477 | $displayName = $user->getDisplayName(); |
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| 478 | } |
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| 479 | return $displayName; |
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| 480 | } |
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| 481 | |||
| 482 | return null; |
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| 483 | } |
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| 484 | |||
| 485 | /** |
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| 486 | * set display name of the user |
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| 487 | * @param string $uid user ID of the user |
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| 488 | * @param string $displayName new display name of the user |
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| 489 | * @return string|false display name |
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| 490 | */ |
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| 491 | public function setDisplayName($uid, $displayName) { |
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| 492 | if ($this->userPluginManager->implementsActions(Backend::SET_DISPLAYNAME)) { |
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| 493 | $this->userPluginManager->setDisplayName($uid, $displayName); |
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| 494 | $this->access->cacheUserDisplayName($uid, $displayName); |
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| 495 | return $displayName; |
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| 496 | } |
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| 497 | return false; |
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| 498 | } |
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| 499 | |||
| 500 | /** |
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| 501 | * Get a list of all display names |
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| 502 | * |
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| 503 | * @param string $search |
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| 504 | * @param string|null $limit |
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| 505 | * @param string|null $offset |
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| 506 | * @return array an array of all displayNames (value) and the corresponding uids (key) |
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| 507 | */ |
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| 508 | public function getDisplayNames($search = '', $limit = null, $offset = null) { |
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| 521 | } |
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| 522 | |||
| 523 | /** |
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| 524 | * Check if backend implements actions |
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| 525 | * @param int $actions bitwise-or'ed actions |
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| 526 | * @return boolean |
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| 527 | * |
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| 528 | * Returns the supported actions as int to be |
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| 529 | * compared with \OC\User\Backend::CREATE_USER etc. |
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| 530 | */ |
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| 531 | public function implementsActions($actions) { |
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| 532 | return (bool)((Backend::CHECK_PASSWORD |
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| 533 | | Backend::GET_HOME |
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| 534 | | Backend::GET_DISPLAYNAME |
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| 535 | | (($this->access->connection->ldapUserAvatarRule !== 'none') ? Backend::PROVIDE_AVATAR : 0) |
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| 536 | | Backend::COUNT_USERS |
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| 537 | | (((int)$this->access->connection->turnOnPasswordChange === 1)? Backend::SET_PASSWORD :0) |
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| 538 | | $this->userPluginManager->getImplementedActions()) |
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| 539 | & $actions); |
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| 540 | } |
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| 541 | |||
| 542 | /** |
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| 543 | * @return bool |
||
| 544 | */ |
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| 545 | public function hasUserListings() { |
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| 546 | return true; |
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| 547 | } |
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| 548 | |||
| 549 | /** |
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| 550 | * counts the users in LDAP |
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| 551 | * |
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| 552 | * @return int|bool |
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| 553 | */ |
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| 554 | public function countUsers() { |
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| 555 | if ($this->userPluginManager->implementsActions(Backend::COUNT_USERS)) { |
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| 556 | return $this->userPluginManager->countUsers(); |
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| 557 | } |
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| 558 | |||
| 559 | $filter = $this->access->getFilterForUserCount(); |
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| 560 | $cacheKey = 'countUsers-'.$filter; |
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| 561 | if(!is_null($entries = $this->access->connection->getFromCache($cacheKey))) { |
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| 562 | return $entries; |
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| 563 | } |
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| 564 | $entries = $this->access->countUsers($filter); |
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| 565 | $this->access->connection->writeToCache($cacheKey, $entries); |
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| 566 | return $entries; |
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| 567 | } |
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| 568 | |||
| 569 | /** |
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| 570 | * Backend name to be shown in user management |
||
| 571 | * @return string the name of the backend to be shown |
||
| 572 | */ |
||
| 573 | public function getBackendName(){ |
||
| 574 | return 'LDAP'; |
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| 575 | } |
||
| 576 | |||
| 577 | /** |
||
| 578 | * Return access for LDAP interaction. |
||
| 579 | * @param string $uid |
||
| 580 | * @return Access instance of Access for LDAP interaction |
||
| 581 | */ |
||
| 582 | public function getLDAPAccess($uid) { |
||
| 584 | } |
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| 585 | |||
| 586 | /** |
||
| 587 | * Return LDAP connection resource from a cloned connection. |
||
| 588 | * The cloned connection needs to be closed manually. |
||
| 589 | * of the current access. |
||
| 590 | * @param string $uid |
||
| 591 | * @return resource of the LDAP connection |
||
| 592 | */ |
||
| 593 | public function getNewLDAPConnection($uid) { |
||
| 596 | } |
||
| 597 | |||
| 598 | /** |
||
| 599 | * create new user |
||
| 600 | * @param string $username username of the new user |
||
| 601 | * @param string $password password of the new user |
||
| 602 | * @throws \UnexpectedValueException |
||
| 603 | * @return bool |
||
| 604 | */ |
||
| 605 | public function createUser($username, $password) { |
||
| 636 | } |
||
| 637 | |||
| 638 | } |
||
| 639 |
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