nextcloud/apps/user_ldap/lib/User/User.php
Marc Hefter 64914593a0
optimized handling of user profile data change
Check profile data checksum before updating user profile, to ensure
data has changed. Write checksum to user settings and cache.

Signed-off-by: Marc Hefter <marchefter@gmail.com>
2023-04-14 11:08:46 +02:00

894 lines
30 KiB
PHP

<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Joas Schilling <coding@schilljs.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Juan Pablo Villafáñez <jvillafanez@solidgear.es>
* @author Marc Hefter <marchefter@march42.net>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Philipp Staiger <philipp@staiger.it>
* @author Roger Szabo <roger.szabo@web.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Victor Dubiniuk <dubiniuk@owncloud.com>
* @author Vincent Petry <vincent@nextcloud.com>
*
* @license AGPL-3.0
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* 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/>
*
*/
namespace OCA\User_LDAP\User;
use Exception;
use OC\Accounts\AccountManager;
use OCA\User_LDAP\Access;
use OCA\User_LDAP\Connection;
use OCA\User_LDAP\Exceptions\AttributeNotSet;
use OCA\User_LDAP\FilesystemHelper;
use OCP\IAvatarManager;
use OCP\IConfig;
use OCP\ILogger;
use OCP\Image;
use OCP\IUser;
use OCP\IUserManager;
use OCP\Accounts\IAccountManager;
use OCP\Accounts\PropertyDoesNotExistException;
use OCP\Notification\IManager as INotificationManager;
use OCP\Server;
use Psr\Log\LoggerInterface;
/**
* User
*
* represents an LDAP user, gets and holds user-specific information from LDAP
*/
class User {
/**
* @var Access
*/
protected $access;
/**
* @var Connection
*/
protected $connection;
/**
* @var IConfig
*/
protected $config;
/**
* @var FilesystemHelper
*/
protected $fs;
/**
* @var Image
*/
protected $image;
/**
* @var LoggerInterface
*/
protected $logger;
/**
* @var IAvatarManager
*/
protected $avatarManager;
/**
* @var IUserManager
*/
protected $userManager;
/**
* @var INotificationManager
*/
protected $notificationManager;
/**
* @var string
*/
protected $dn;
/**
* @var string
*/
protected $uid;
/**
* @var string[]
*/
protected $refreshedFeatures = [];
/**
* @var string
*/
protected $avatarImage;
/**
* DB config keys for user preferences
*/
public const USER_PREFKEY_FIRSTLOGIN = 'firstLoginAccomplished';
/**
* @brief constructor, make sure the subclasses call this one!
* @param string $username the internal username
* @param string $dn the LDAP DN
*/
public function __construct($username, $dn, Access $access,
IConfig $config, FilesystemHelper $fs, Image $image,
LoggerInterface $logger, IAvatarManager $avatarManager, IUserManager $userManager,
INotificationManager $notificationManager) {
if ($username === null) {
$logger->error("uid for '$dn' must not be null!", ['app' => 'user_ldap']);
throw new \InvalidArgumentException('uid must not be null!');
} elseif ($username === '') {
$logger->error("uid for '$dn' must not be an empty string", ['app' => 'user_ldap']);
throw new \InvalidArgumentException('uid must not be an empty string!');
}
$this->access = $access;
$this->connection = $access->getConnection();
$this->config = $config;
$this->fs = $fs;
$this->dn = $dn;
$this->uid = $username;
$this->image = $image;
$this->logger = $logger;
$this->avatarManager = $avatarManager;
$this->userManager = $userManager;
$this->notificationManager = $notificationManager;
\OCP\Util::connectHook('OC_User', 'post_login', $this, 'handlePasswordExpiry');
}
/**
* marks a user as deleted
*
* @throws \OCP\PreConditionNotMetException
*/
public function markUser() {
$curValue = $this->config->getUserValue($this->getUsername(), 'user_ldap', 'isDeleted', '0');
if ($curValue === '1') {
// the user is already marked, do not write to DB again
return;
}
$this->config->setUserValue($this->getUsername(), 'user_ldap', 'isDeleted', '1');
$this->config->setUserValue($this->getUsername(), 'user_ldap', 'foundDeleted', (string)time());
}
/**
* processes results from LDAP for attributes as returned by getAttributesToRead()
* @param array $ldapEntry the user entry as retrieved from LDAP
*/
public function processAttributes($ldapEntry) {
//Quota
$attr = strtolower($this->connection->ldapQuotaAttribute);
if (isset($ldapEntry[$attr])) {
$this->updateQuota($ldapEntry[$attr][0]);
} else {
if ($this->connection->ldapQuotaDefault !== '') {
$this->updateQuota();
}
}
unset($attr);
//displayName
$displayName = $displayName2 = '';
$attr = strtolower($this->connection->ldapUserDisplayName);
if (isset($ldapEntry[$attr])) {
$displayName = (string)$ldapEntry[$attr][0];
}
$attr = strtolower($this->connection->ldapUserDisplayName2);
if (isset($ldapEntry[$attr])) {
$displayName2 = (string)$ldapEntry[$attr][0];
}
if ($displayName !== '') {
$this->composeAndStoreDisplayName($displayName, $displayName2);
$this->access->cacheUserDisplayName(
$this->getUsername(),
$displayName,
$displayName2
);
}
unset($attr);
//Email
//email must be stored after displayname, because it would cause a user
//change event that will trigger fetching the display name again
$attr = strtolower($this->connection->ldapEmailAttribute);
if (isset($ldapEntry[$attr])) {
$this->updateEmail($ldapEntry[$attr][0]);
}
unset($attr);
// LDAP Username, needed for s2s sharing
if (isset($ldapEntry['uid'])) {
$this->storeLDAPUserName($ldapEntry['uid'][0]);
} elseif (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);
//external storage var
$attr = strtolower($this->connection->ldapExtStorageHomeAttribute);
if (isset($ldapEntry[$attr])) {
$this->updateExtStorageHome($ldapEntry[$attr][0]);
}
unset($attr);
// check for cached profile data
$username = $this->getUsername(); // buffer variable, to save resource
$cacheKey = 'getUserProfile-'.$username;
$profileCached = $this->connection->getFromCache($cacheKey);
// honoring profile disabled in config.php and check if user profile was refreshed
if ($this->config->getSystemValueBool('profile.enabled', true) &&
($profileCached === null) && // no cache or TTL not expired
!$this->wasRefreshed('profile')) {
// check current data
$profileValues = array();
//User Profile Field - Phone number
$attr = strtolower($this->connection->ldapAttributePhone);
if (isset($ldapEntry[$attr])) {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_PHONE]
= $ldapEntry[$attr][0];
}
//User Profile Field - website
$attr = strtolower($this->connection->ldapAttributeWebsite);
if (isset($ldapEntry[$attr])) {
$cutPosition = strpos($ldapEntry[$attr][0]," ");
if ($cutPosition) {
// drop appended label
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_WEBSITE]
= substr($ldapEntry[$attr][0],0,$cutPosition);
} else {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_WEBSITE]
= $ldapEntry[$attr][0];
}
}
//User Profile Field - Address
$attr = strtolower($this->connection->ldapAttributeAddress);
if (isset($ldapEntry[$attr])) {
if (str_contains($ldapEntry[$attr][0],'$')) {
// basic format conversion from postalAddress syntax to commata delimited
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_ADDRESS]
= str_replace('$', ", ", $ldapEntry[$attr][0]);
} else {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_ADDRESS]
= $ldapEntry[$attr][0];
}
}
//User Profile Field - Twitter
$attr = strtolower($this->connection->ldapAttributeTwitter);
if (isset($ldapEntry[$attr])) {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_TWITTER]
= $ldapEntry[$attr][0];
}
//User Profile Field - fediverse
$attr = strtolower($this->connection->ldapAttributeFediverse);
if (isset($ldapEntry[$attr])) {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_FEDIVERSE]
= $ldapEntry[$attr][0];
}
//User Profile Field - organisation
$attr = strtolower($this->connection->ldapAttributeOrganisation);
if (isset($ldapEntry[$attr])) {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_ORGANISATION]
= $ldapEntry[$attr][0];
}
//User Profile Field - role
$attr = strtolower($this->connection->ldapAttributeRole);
if (isset($ldapEntry[$attr])) {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_ROLE]
= $ldapEntry[$attr][0];
}
//User Profile Field - headline
$attr = strtolower($this->connection->ldapAttributeHeadline);
if (isset($ldapEntry[$attr])) {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_HEADLINE]
= $ldapEntry[$attr][0];
}
//User Profile Field - biography
$attr = strtolower($this->connection->ldapAttributeBiography);
if (isset($ldapEntry[$attr])) {
if (str_contains($ldapEntry[$attr][0],'\r')) {
// convert line endings
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_BIOGRAPHY]
= str_replace(array("\r\n","\r"), "\n", $ldapEntry[$attr][0]);
} else {
$profileValues[\OCP\Accounts\IAccountManager::PROPERTY_BIOGRAPHY]
= $ldapEntry[$attr][0];
}
}
// check for changed data and cache just for TTL checking
$checksum = hash('sha256', json_encode($profileValues));
$this->connection->writeToCache($cacheKey
, $checksum // write array to cache. is waste of cache space
, null); // use ldapCacheTTL from configuration
// Update user profile
if ($this->config->getUserValue($username, 'user_ldap', 'lastProfileChecksum', null) !== $checksum) {
$this->config->setUserValue($username, 'user_ldap', 'lastProfileChecksum', $checksum);
$this->updateProfile($profileValues);
$this->logger->info("updated profile uid=$username"
, ['app' => 'user_ldap']);
} else {
$this->logger->debug("profile data from LDAP unchanged"
, ['app' => 'user_ldap', 'uid' => $username]);
}
unset($attr);
} elseif ($profileCached !== null) { // message delayed, to declutter log
$this->logger->debug("skipping profile check, while cached data exist"
, ['app' => 'user_ldap', 'uid' => $username]);
}
//Avatar
/** @var Connection $connection */
$connection = $this->access->getConnection();
$attributes = $connection->resolveRule('avatar');
foreach ($attributes as $attribute) {
if (isset($ldapEntry[$attribute])) {
$this->avatarImage = $ldapEntry[$attribute][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 Nextcloud 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 $valueFromLDAP
* @return false|string
* @throws \Exception
*/
public function getHomePath($valueFromLDAP = null) {
$path = (string)$valueFromLDAP;
$attr = null;
if (is_null($valueFromLDAP)
&& 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 = $homedir[0];
}
}
if ($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;
/** @var Connection $connection */
$connection = $this->access->getConnection();
$attributes = $connection->resolveRule('avatar');
foreach ($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');
}
/**
* Stores a key-value pair in relation to this user
*
* @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.
*
* @param string $displayName
* @param string $displayName2
* @return string the effective display name
*/
public function composeAndStoreDisplayName($displayName, $displayName2 = '') {
$displayName2 = (string)$displayName2;
if ($displayName2 !== '') {
$displayName .= ' (' . $displayName2 . ')';
}
$oldName = $this->config->getUserValue($this->uid, 'user_ldap', 'displayName', null);
if ($oldName !== $displayName) {
$this->store('displayName', $displayName);
$user = $this->userManager->get($this->getUsername());
if (!empty($oldName) && $user instanceof \OC\User\User) {
// if it was empty, it would be a new record, not a change emitting the trigger could
// potentially cause a UniqueConstraintViolationException, depending on some factors.
$user->triggerChange('displayName', $displayName, $oldName);
}
}
return $displayName;
}
/**
* 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.
* @param string $feature email | quota | avatar | profile (can be extended)
* @return bool
*/
private function wasRefreshed($feature) {
if (isset($this->refreshedFeatures[$feature])) {
return true;
}
$this->refreshedFeatures[$feature] = 1;
return false;
}
/**
* fetches the email from LDAP and stores it as Nextcloud 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;
}
$email = (string)$valueFromLDAP;
if (is_null($valueFromLDAP)) {
$emailAttribute = $this->connection->ldapEmailAttribute;
if ($emailAttribute !== '') {
$aEmail = $this->access->readAttribute($this->dn, $emailAttribute);
if (is_array($aEmail) && (count($aEmail) > 0)) {
$email = (string)$aEmail[0];
}
}
}
if ($email !== '') {
$user = $this->userManager->get($this->uid);
if (!is_null($user)) {
$currentEmail = (string)$user->getSystemEMailAddress();
if ($currentEmail !== $email) {
$user->setEMailAddress($email);
}
}
}
}
/**
* Overall process goes as follow:
* 1. fetch the quota from LDAP and check if it's parseable with the "verifyQuotaValue" function
* 2. if the value can't be fetched, is empty or not parseable, use the default LDAP quota
* 3. if the default LDAP quota can't be parsed, use the Nextcloud's default quota (use 'default')
* 4. check if the target user exists and set the quota for the user.
*
* In order to improve performance and prevent an unwanted extra LDAP call, the $valueFromLDAP
* parameter can be passed with the value of the attribute. This value will be considered as the
* quota for the user coming from the LDAP server (step 1 of the process) It can be useful to
* fetch all the user's attributes in one call and use the fetched values in this function.
* The expected value for that parameter is a string describing the quota for the user. Valid
* values are 'none' (unlimited), 'default' (the Nextcloud's default quota), '1234' (quota in
* bytes), '1234 MB' (quota in MB - check the \OC_Helper::computerFileSize method for more info)
*
* fetches the quota from LDAP and stores it as Nextcloud user value
* @param ?string $valueFromLDAP the quota attribute's value can be passed,
* to save the readAttribute request
* @return void
*/
public function updateQuota($valueFromLDAP = null) {
if ($this->wasRefreshed('quota')) {
return;
}
$quotaAttribute = $this->connection->ldapQuotaAttribute;
$defaultQuota = $this->connection->ldapQuotaDefault;
if ($quotaAttribute === '' && $defaultQuota === '') {
return;
}
$quota = false;
if (is_null($valueFromLDAP) && $quotaAttribute !== '') {
$aQuota = $this->access->readAttribute($this->dn, $quotaAttribute);
if ($aQuota && (count($aQuota) > 0) && $this->verifyQuotaValue($aQuota[0])) {
$quota = $aQuota[0];
} elseif (is_array($aQuota) && isset($aQuota[0])) {
$this->logger->debug('no suitable LDAP quota found for user ' . $this->uid . ': [' . $aQuota[0] . ']', ['app' => 'user_ldap']);
}
} elseif (!is_null($valueFromLDAP) && $this->verifyQuotaValue($valueFromLDAP)) {
$quota = $valueFromLDAP;
} else {
$this->logger->debug('no suitable LDAP quota found for user ' . $this->uid . ': [' . $valueFromLDAP . ']', ['app' => 'user_ldap']);
}
if ($quota === false && $this->verifyQuotaValue($defaultQuota)) {
// quota not found using the LDAP attribute (or not parseable). Try the default quota
$quota = $defaultQuota;
} elseif ($quota === false) {
$this->logger->debug('no suitable default quota found for user ' . $this->uid . ': [' . $defaultQuota . ']', ['app' => 'user_ldap']);
return;
}
$targetUser = $this->userManager->get($this->uid);
if ($targetUser instanceof IUser) {
$targetUser->setQuota($quota);
} else {
$this->logger->info('trying to set a quota for user ' . $this->uid . ' but the user is missing', ['app' => 'user_ldap']);
}
}
private function verifyQuotaValue(string $quotaValue) {
return $quotaValue === 'none' || $quotaValue === 'default' || \OC_Helper::computerFileSize($quotaValue) !== false;
}
/**
* takes values from LDAP and stores it as Nextcloud user profile value
*
* @param array $profileValues associative array of property keys and values from LDAP
*/
private function updateProfile(array $profileValues): void {
// check if given array is empty
if (empty($profileValues)) {
return; // okay, nothing to do
}
// fetch/prepare user
$user = $this->userManager->get($this->uid);
if (is_null($user)) {
$this->logger->error('could not get user for uid='.$this->uid.'', ['app' => 'user_ldap']);
return;
}
// prepare AccountManager and Account
$accountManager = Server::get(IAccountManager::class);
$account = $accountManager->getAccount($user); // get Account
$defaultScopes = array_merge(AccountManager::DEFAULT_SCOPES,
$this->config->getSystemValue('account_manager.default_property_scope', []));
// loop through the properties and handle them
foreach($profileValues as $property => $valueFromLDAP) {
// check and update profile properties
$value = (is_array($valueFromLDAP) ? $valueFromLDAP[0] : $valueFromLDAP); // take ONLY the first value, if multiple values specified
try {
$accountProperty = $account->getProperty($property);
$currentValue = $accountProperty->getValue();
$scope = ($accountProperty->getScope() ? $accountProperty->getScope()
: $defaultScopes[$property]);
}
catch (PropertyDoesNotExistException $e) { // thrown at getProperty
$this->logger->error('property does not exist: '.$property
.' for uid='.$this->uid.''
, ['app' => 'user_ldap', 'exception' => $e]);
$currentValue = '';
$scope = $defaultScopes[$property];
}
$verified = IAccountManager::VERIFIED; // trust the LDAP admin knew what he put there
if ($currentValue !== $value) {
$account->setProperty($property,$value,$scope,$verified);
$this->logger->debug('update user profile: '.$property.'='.$value
.' for uid='.$this->uid.'', ['app' => 'user_ldap']);
}
}
try {
$accountManager->updateAccount($account); // may throw InvalidArgumentException
} catch (\InvalidArgumentException $e) {
$this->logger->error('invalid data from LDAP: for uid='.$this->uid.''
, ['app' => 'user_ldap', 'func' => 'updateProfile'
, 'exception' => $e]);
}
}
/**
* 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()) {
$this->updateAvatar();
}
}
/**
* @brief attempts to get an image from LDAP and sets it as Nextcloud avatar
* @return bool
*/
public function updateAvatar($force = false) {
if (!$force && $this->wasRefreshed('avatar')) {
return false;
}
$avatarImage = $this->getAvatarImage();
if ($avatarImage === false) {
//not set, nothing left to do;
return false;
}
if (!$this->image->loadFromBase64(base64_encode($avatarImage))) {
return false;
}
// use the checksum before modifications
$checksum = md5($this->image->data());
if ($checksum === $this->config->getUserValue($this->uid, 'user_ldap', 'lastAvatarChecksum', '')) {
return true;
}
$isSet = $this->setOwnCloudAvatar();
if ($isSet) {
// save checksum only after successful setting
$this->config->setUserValue($this->uid, 'user_ldap', 'lastAvatarChecksum', $checksum);
}
return $isSet;
}
/**
* @brief sets an image as Nextcloud avatar
* @return bool
*/
private function setOwnCloudAvatar() {
if (!$this->image->valid()) {
$this->logger->error('avatar image data from LDAP invalid for '.$this->dn, ['app' => 'user_ldap']);
return false;
}
//make sure it is a square and not bigger than 128x128
$size = min([$this->image->width(), $this->image->height(), 128]);
if (!$this->image->centerCrop($size)) {
$this->logger->error('croping image for avatar failed for '.$this->dn, ['app' => 'user_ldap']);
return false;
}
if (!$this->fs->isLoaded()) {
$this->fs->setup($this->uid);
}
try {
$avatar = $this->avatarManager->getAvatar($this->uid);
$avatar->set($this->image);
return true;
} catch (\Exception $e) {
\OC::$server->getLogger()->logException($e, [
'message' => 'Could not set avatar for ' . $this->dn,
'level' => ILogger::INFO,
'app' => 'user_ldap',
]);
}
return false;
}
/**
* @throws AttributeNotSet
* @throws \OC\ServerNotAvailableException
* @throws \OCP\PreConditionNotMetException
*/
public function getExtStorageHome():string {
$value = $this->config->getUserValue($this->getUsername(), 'user_ldap', 'extStorageHome', '');
if ($value !== '') {
return $value;
}
$value = $this->updateExtStorageHome();
if ($value !== '') {
return $value;
}
throw new AttributeNotSet(sprintf(
'external home storage attribute yield no value for %s', $this->getUsername()
));
}
/**
* @throws \OCP\PreConditionNotMetException
* @throws \OC\ServerNotAvailableException
*/
public function updateExtStorageHome(string $valueFromLDAP = null):string {
if ($valueFromLDAP === null) {
$extHomeValues = $this->access->readAttribute($this->getDN(), $this->connection->ldapExtStorageHomeAttribute);
} else {
$extHomeValues = [$valueFromLDAP];
}
if ($extHomeValues && isset($extHomeValues[0])) {
$extHome = $extHomeValues[0];
$this->config->setUserValue($this->getUsername(), 'user_ldap', 'extStorageHome', $extHome);
return $extHome;
} else {
$this->config->deleteUserValue($this->getUsername(), 'user_ldap', 'extStorageHome');
return '';
}
}
/**
* called by a post_login hook to handle password expiry
*
* @param array $params
*/
public function handlePasswordExpiry($params) {
$ppolicyDN = $this->connection->ldapDefaultPPolicyDN;
if (empty($ppolicyDN) || ((int)$this->connection->turnOnPasswordChange !== 1)) {
return;//password expiry handling disabled
}
$uid = $params['uid'];
if (isset($uid) && $uid === $this->getUsername()) {
//retrieve relevant user attributes
$result = $this->access->search('objectclass=*', $this->dn, ['pwdpolicysubentry', 'pwdgraceusetime', 'pwdreset', 'pwdchangedtime']);
if (array_key_exists('pwdpolicysubentry', $result[0])) {
$pwdPolicySubentry = $result[0]['pwdpolicysubentry'];
if ($pwdPolicySubentry && (count($pwdPolicySubentry) > 0)) {
$ppolicyDN = $pwdPolicySubentry[0];//custom ppolicy DN
}
}
$pwdGraceUseTime = array_key_exists('pwdgraceusetime', $result[0]) ? $result[0]['pwdgraceusetime'] : [];
$pwdReset = array_key_exists('pwdreset', $result[0]) ? $result[0]['pwdreset'] : [];
$pwdChangedTime = array_key_exists('pwdchangedtime', $result[0]) ? $result[0]['pwdchangedtime'] : [];
//retrieve relevant password policy attributes
$cacheKey = 'ppolicyAttributes' . $ppolicyDN;
$result = $this->connection->getFromCache($cacheKey);
if (is_null($result)) {
$result = $this->access->search('objectclass=*', $ppolicyDN, ['pwdgraceauthnlimit', 'pwdmaxage', 'pwdexpirewarning']);
$this->connection->writeToCache($cacheKey, $result);
}
$pwdGraceAuthNLimit = array_key_exists('pwdgraceauthnlimit', $result[0]) ? $result[0]['pwdgraceauthnlimit'] : [];
$pwdMaxAge = array_key_exists('pwdmaxage', $result[0]) ? $result[0]['pwdmaxage'] : [];
$pwdExpireWarning = array_key_exists('pwdexpirewarning', $result[0]) ? $result[0]['pwdexpirewarning'] : [];
//handle grace login
if (!empty($pwdGraceUseTime)) { //was this a grace login?
if (!empty($pwdGraceAuthNLimit)
&& count($pwdGraceUseTime) < (int)$pwdGraceAuthNLimit[0]) { //at least one more grace login available?
$this->config->setUserValue($uid, 'user_ldap', 'needsPasswordReset', 'true');
header('Location: '.\OC::$server->getURLGenerator()->linkToRouteAbsolute(
'user_ldap.renewPassword.showRenewPasswordForm', ['user' => $uid]));
} else { //no more grace login available
header('Location: '.\OC::$server->getURLGenerator()->linkToRouteAbsolute(
'user_ldap.renewPassword.showLoginFormInvalidPassword', ['user' => $uid]));
}
exit();
}
//handle pwdReset attribute
if (!empty($pwdReset) && $pwdReset[0] === 'TRUE') { //user must change his password
$this->config->setUserValue($uid, 'user_ldap', 'needsPasswordReset', 'true');
header('Location: '.\OC::$server->getURLGenerator()->linkToRouteAbsolute(
'user_ldap.renewPassword.showRenewPasswordForm', ['user' => $uid]));
exit();
}
//handle password expiry warning
if (!empty($pwdChangedTime)) {
if (!empty($pwdMaxAge)
&& !empty($pwdExpireWarning)) {
$pwdMaxAgeInt = (int)$pwdMaxAge[0];
$pwdExpireWarningInt = (int)$pwdExpireWarning[0];
if ($pwdMaxAgeInt > 0 && $pwdExpireWarningInt > 0) {
$pwdChangedTimeDt = \DateTime::createFromFormat('YmdHisZ', $pwdChangedTime[0]);
$pwdChangedTimeDt->add(new \DateInterval('PT'.$pwdMaxAgeInt.'S'));
$currentDateTime = new \DateTime();
$secondsToExpiry = $pwdChangedTimeDt->getTimestamp() - $currentDateTime->getTimestamp();
if ($secondsToExpiry <= $pwdExpireWarningInt) {
//remove last password expiry warning if any
$notification = $this->notificationManager->createNotification();
$notification->setApp('user_ldap')
->setUser($uid)
->setObject('pwd_exp_warn', $uid)
;
$this->notificationManager->markProcessed($notification);
//create new password expiry warning
$notification = $this->notificationManager->createNotification();
$notification->setApp('user_ldap')
->setUser($uid)
->setDateTime($currentDateTime)
->setObject('pwd_exp_warn', $uid)
->setSubject('pwd_exp_warn_days', [(int) ceil($secondsToExpiry / 60 / 60 / 24)])
;
$this->notificationManager->notify($notification);
}
}
}
}
}
}
}