nextcloud/apps/user_ldap/lib/User/User.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Morris Jobke <hey@morrisjobke.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
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* @license AGPL-3.0
*
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* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
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* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
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* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
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namespace OCA\User_LDAP\User;
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use OCA\User_LDAP\Connection;
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use OCA\User_LDAP\FilesystemHelper;
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use OCA\User_LDAP\LogWrapper;
use OCP\IAvatarManager;
use OCP\IConfig;
use OCP\Image;
use OCP\IUserManager;
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/**
* User
*
* represents an LDAP user, gets and holds user-specific information from LDAP
*/
class User {
/**
* @var IUserTools
*/
protected $access;
/**
* @var Connection
*/
protected $connection;
/**
* @var IConfig
*/
protected $config;
/**
* @var FilesystemHelper
*/
protected $fs;
/**
* @var Image
*/
protected $image;
/**
* @var LogWrapper
*/
protected $log;
/**
* @var IAvatarManager
*/
protected $avatarManager;
/**
* @var IUserManager
*/
protected $userManager;
/**
* @var string
*/
protected $dn;
/**
* @var string
*/
protected $uid;
/**
* @var string[]
*/
protected $refreshedFeatures = array();
/**
* @var string
*/
protected $avatarImage;
/**
* DB config keys for user preferences
*/
const USER_PREFKEY_FIRSTLOGIN = 'firstLoginAccomplished';
const USER_PREFKEY_LASTREFRESH = 'lastFeatureRefresh';
/**
* @brief constructor, make sure the subclasses call this one!
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* @param string $username the internal username
* @param string $dn the LDAP DN
* @param IUserTools $access an instance that implements IUserTools for
* LDAP interaction
* @param IConfig $config
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* @param FilesystemHelper $fs
* @param Image $image any empty instance
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* @param LogWrapper $log
* @param IAvatarManager $avatarManager
* @param IUserManager $userManager
*/
public function __construct($username, $dn, IUserTools $access,
IConfig $config, FilesystemHelper $fs, Image $image,
LogWrapper $log, IAvatarManager $avatarManager, IUserManager $userManager) {
$this->access = $access;
$this->connection = $access->getConnection();
$this->config = $config;
$this->fs = $fs;
$this->dn = $dn;
$this->uid = $username;
$this->image = $image;
$this->log = $log;
$this->avatarManager = $avatarManager;
$this->userManager = $userManager;
}
/**
* @brief updates properties like email, quota or avatar provided by LDAP
* @return null
*/
public function update() {
if(is_null($this->dn)) {
return null;
}
$hasLoggedIn = $this->config->getUserValue($this->uid, 'user_ldap',
self::USER_PREFKEY_FIRSTLOGIN, 0);
if($this->needsRefresh()) {
$this->updateEmail();
$this->updateQuota();
if($hasLoggedIn !== 0) {
//we do not need to try it, when the user has not been logged in
//before, because the file system will not be ready.
$this->updateAvatar();
//in order to get an avatar as soon as possible, mark the user
//as refreshed only when updating the avatar did happen
$this->markRefreshTime();
}
}
}
/**
* processes results from LDAP for attributes as returned by getAttributesToRead()
* @param array $ldapEntry the user entry as retrieved from LDAP
*/
public function processAttributes($ldapEntry) {
$this->markRefreshTime();
//Quota
$attr = strtolower($this->connection->ldapQuotaAttribute);
if(isset($ldapEntry[$attr])) {
$this->updateQuota($ldapEntry[$attr][0]);
}
unset($attr);
//Email
$attr = strtolower($this->connection->ldapEmailAttribute);
if(isset($ldapEntry[$attr])) {
$this->updateEmail($ldapEntry[$attr][0]);
}
unset($attr);
//displayName
$displayName = $displayName2 = '';
$attr = strtolower($this->connection->ldapUserDisplayName);
if(isset($ldapEntry[$attr])) {
$displayName = $ldapEntry[$attr][0];
}
$attr = strtolower($this->connection->ldapUserDisplayName2);
if(isset($ldapEntry[$attr])) {
$displayName2 = $ldapEntry[$attr][0];
}
if(!empty($displayName)) {
$this->composeAndStoreDisplayName($displayName);
$this->access->cacheUserDisplayName(
$this->getUsername(),
$displayName,
$displayName2
);
}
unset($attr);
// LDAP Username, needed for s2s sharing
if(isset($ldapEntry['uid'])) {
$this->storeLDAPUserName($ldapEntry['uid'][0]);
} else if(isset($ldapEntry['samaccountname'])) {
$this->storeLDAPUserName($ldapEntry['samaccountname'][0]);
}
//homePath
if(strpos($this->connection->homeFolderNamingRule, 'attr:') === 0) {
$attr = strtolower(substr($this->connection->homeFolderNamingRule, strlen('attr:')));
if(isset($ldapEntry[$attr])) {
$this->access->cacheUserHome(
$this->getUsername(), $this->getHomePath($ldapEntry[$attr][0]));
}
}
//memberOf groups
$cacheKey = 'getMemberOf'.$this->getUsername();
$groups = false;
if(isset($ldapEntry['memberof'])) {
$groups = $ldapEntry['memberof'];
}
$this->connection->writeToCache($cacheKey, $groups);
//Avatar
$attrs = array('jpegphoto', 'thumbnailphoto');
foreach ($attrs as $attr) {
if(isset($ldapEntry[$attr])) {
$this->avatarImage = $ldapEntry[$attr][0];
// the call to the method that saves the avatar in the file
// system must be postponed after the login. It is to ensure
// external mounts are mounted properly (e.g. with login
// credentials from the session).
\OCP\Util::connectHook('OC_User', 'post_login', $this, 'updateAvatarPostLogin');
break;
}
}
}
/**
* @brief returns the LDAP DN of the user
* @return string
*/
public function getDN() {
return $this->dn;
}
/**
* @brief returns the ownCloud internal username of the user
* @return string
*/
public function getUsername() {
return $this->uid;
}
/**
* returns the home directory of the user if specified by LDAP settings
* @param string $valueFromLDAP
* @return bool|string
* @throws \Exception
*/
public function getHomePath($valueFromLDAP = null) {
$path = $valueFromLDAP;
$attr = null;
if( is_null($path)
&& strpos($this->access->connection->homeFolderNamingRule, 'attr:') === 0
&& $this->access->connection->homeFolderNamingRule !== 'attr:')
{
$attr = substr($this->access->connection->homeFolderNamingRule, strlen('attr:'));
$homedir = $this->access->readAttribute(
$this->access->username2dn($this->getUsername()), $attr);
if ($homedir && isset($homedir[0])) {
$path = $homedir[0];
}
}
if(!empty($path)) {
//if attribute's value is an absolute path take this, otherwise append it to data dir
//check for / at the beginning or pattern c:\ resp. c:/
if( '/' !== $path[0]
&& !(3 < strlen($path) && ctype_alpha($path[0])
&& $path[1] === ':' && ('\\' === $path[2] || '/' === $path[2]))
) {
$path = $this->config->getSystemValue('datadirectory',
\OC::$SERVERROOT.'/data' ) . '/' . $path;
}
//we need it to store it in the DB as well in case a user gets
//deleted so we can clean up afterwards
$this->config->setUserValue(
$this->getUsername(), 'user_ldap', 'homePath', $path
);
return $path;
}
if( !is_null($attr)
&& $this->config->getAppValue('user_ldap', 'enforce_home_folder_naming_rule', true)
) {
// a naming rule attribute is defined, but it doesn't exist for that LDAP user
throw new \Exception('Home dir attribute can\'t be read from LDAP for uid: ' . $this->getUsername());
}
//false will apply default behaviour as defined and done by OC_User
$this->config->setUserValue($this->getUsername(), 'user_ldap', 'homePath', '');
return false;
}
public function getMemberOfGroups() {
$cacheKey = 'getMemberOf'.$this->getUsername();
$memberOfGroups = $this->connection->getFromCache($cacheKey);
if(!is_null($memberOfGroups)) {
return $memberOfGroups;
}
$groupDNs = $this->access->readAttribute($this->getDN(), 'memberOf');
$this->connection->writeToCache($cacheKey, $groupDNs);
return $groupDNs;
}
/**
* @brief reads the image from LDAP that shall be used as Avatar
* @return string data (provided by LDAP) | false
*/
public function getAvatarImage() {
if(!is_null($this->avatarImage)) {
return $this->avatarImage;
}
$this->avatarImage = false;
$attributes = array('jpegPhoto', 'thumbnailPhoto');
foreach($attributes as $attribute) {
$result = $this->access->readAttribute($this->dn, $attribute);
if($result !== false && is_array($result) && isset($result[0])) {
$this->avatarImage = $result[0];
break;
}
}
return $this->avatarImage;
}
/**
* @brief marks the user as having logged in at least once
* @return null
*/
public function markLogin() {
$this->config->setUserValue(
$this->uid, 'user_ldap', self::USER_PREFKEY_FIRSTLOGIN, 1);
}
/**
* @brief marks the time when user features like email have been updated
* @return null
*/
public function markRefreshTime() {
$this->config->setUserValue(
$this->uid, 'user_ldap', self::USER_PREFKEY_LASTREFRESH, time());
}
/**
* @brief checks whether user features needs to be updated again by
* comparing the difference of time of the last refresh to now with the
* desired interval
* @return bool
*/
private function needsRefresh() {
$lastChecked = $this->config->getUserValue($this->uid, 'user_ldap',
self::USER_PREFKEY_LASTREFRESH, 0);
//TODO make interval configurable
if((time() - intval($lastChecked)) < 86400 ) {
return false;
}
return true;
}
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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/**
* Stores a key-value pair in relation to this user
*
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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* @param string $key
* @param string $value
*/
private function store($key, $value) {
$this->config->setUserValue($this->uid, 'user_ldap', $key, $value);
}
/**
* Composes the display name and stores it in the database. The final
* display name is returned.
*
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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* @param string $displayName
* @param string $displayName2
* @returns string the effective display name
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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*/
public function composeAndStoreDisplayName($displayName, $displayName2 = '') {
if(!empty($displayName2)) {
$displayName .= ' (' . $displayName2 . ')';
}
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
2014-08-21 19:59:13 +04:00
$this->store('displayName', $displayName);
return $displayName;
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
2014-08-21 19:59:13 +04:00
}
/**
* Stores the LDAP Username in the Database
* @param string $userName
*/
public function storeLDAPUserName($userName) {
$this->store('uid', $userName);
}
/**
* @brief checks whether an update method specified by feature was run
* already. If not, it will marked like this, because it is expected that
* the method will be run, when false is returned.
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* @param string $feature email | quota | avatar (can be extended)
* @return bool
*/
private function wasRefreshed($feature) {
if(isset($this->refreshedFeatures[$feature])) {
return true;
}
$this->refreshedFeatures[$feature] = 1;
return false;
}
/**
* fetches the email from LDAP and stores it as ownCloud user value
* @param string $valueFromLDAP if known, to save an LDAP read request
* @return null
*/
public function updateEmail($valueFromLDAP = null) {
if($this->wasRefreshed('email')) {
return;
}
$email = $valueFromLDAP;
if(is_null($valueFromLDAP)) {
$emailAttribute = $this->connection->ldapEmailAttribute;
if(!empty($emailAttribute)) {
$aEmail = $this->access->readAttribute($this->dn, $emailAttribute);
if(is_array($aEmail) && (count($aEmail) > 0)) {
$email = $aEmail[0];
}
}
}
if(!is_null($email)) {
$user = $this->userManager->get($this->uid);
if (!is_null($user)) {
$currentEmail = $user->getEMailAddress();
if ($currentEmail !== $email) {
$user->setEMailAddress($email);
}
}
}
}
/**
* fetches the quota from LDAP and stores it as ownCloud user value
* @param string $valueFromLDAP the quota attribute's value can be passed,
* to save the readAttribute request
* @return null
*/
public function updateQuota($valueFromLDAP = null) {
if($this->wasRefreshed('quota')) {
return;
}
//can be null
$quotaDefault = $this->connection->ldapQuotaDefault;
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$quota = $quotaDefault !== '' ? $quotaDefault : null;
$quota = !is_null($valueFromLDAP) ? $valueFromLDAP : $quota;
if(is_null($valueFromLDAP)) {
$quotaAttribute = $this->connection->ldapQuotaAttribute;
if(!empty($quotaAttribute)) {
$aQuota = $this->access->readAttribute($this->dn, $quotaAttribute);
if($aQuota && (count($aQuota) > 0)) {
$quota = $aQuota[0];
}
}
}
if(!is_null($quota)) {
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$this->userManager->get($this->uid)->setQuota($quota);
}
}
/**
* called by a post_login hook to save the avatar picture
*
* @param array $params
*/
public function updateAvatarPostLogin($params) {
if(isset($params['uid']) && $params['uid'] === $this->getUsername()) {
$this->updateAvatar();
}
}
/**
* @brief attempts to get an image from LDAP and sets it as ownCloud avatar
* @return null
*/
public function updateAvatar() {
if($this->wasRefreshed('avatar')) {
return;
}
$avatarImage = $this->getAvatarImage();
if($avatarImage === false) {
//not set, nothing left to do;
return;
}
$this->image->loadFromBase64(base64_encode($avatarImage));
$this->setOwnCloudAvatar();
}
/**
* @brief sets an image as ownCloud avatar
* @return null
*/
private function setOwnCloudAvatar() {
if(!$this->image->valid()) {
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$this->log->log('jpegPhoto data invalid for '.$this->dn, \OCP\Util::ERROR);
return;
}
//make sure it is a square and not bigger than 128x128
$size = min(array($this->image->width(), $this->image->height(), 128));
if(!$this->image->centerCrop($size)) {
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$this->log->log('croping image for avatar failed for '.$this->dn, \OCP\Util::ERROR);
return;
}
if(!$this->fs->isLoaded()) {
$this->fs->setup($this->uid);
}
try {
$avatar = $this->avatarManager->getAvatar($this->uid);
$avatar->set($this->image);
} catch (\Exception $e) {
\OC::$server->getLogger()->notice(
'Could not set avatar for ' . $this->dn . ', because: ' . $e->getMessage(),
['app' => 'user_ldap']);
}
}
}