* This file is licensed under the Affero General Public License version 3 or * later. * See the COPYING-README file. * */ namespace OC; use OCP\IDBConnection; use OCP\PreConditionNotMetException; /** * Class to combine all the configuration options ownCloud offers */ class AllConfig implements \OCP\IConfig { /** @var SystemConfig */ private $systemConfig; /** @var IDBConnection */ private $connection; /** * 3 dimensional array with the following structure: * [ $userId => * [ $appId => * [ $key => $value ] * ] * ] * * database table: preferences * * methods that use this: * - setUserValue * - getUserValue * - getUserKeys * - deleteUserValue * - deleteAllUserValues * - deleteAppFromAllUsers * * @var array $userCache */ private $userCache = array(); /** * @param SystemConfig $systemConfig */ function __construct(SystemConfig $systemConfig) { $this->systemConfig = $systemConfig; } /** * TODO - FIXME This fixes an issue with base.php that cause cyclic * dependencies, especially with autoconfig setup * * Replace this by properly injected database connection. Currently the * base.php triggers the getDatabaseConnection too early which causes in * autoconfig setup case a too early distributed database connection and * the autoconfig then needs to reinit all already initialized dependencies * that use the database connection. * * otherwise a SQLite database is created in the wrong directory * because the database connection was created with an uninitialized config */ private function fixDIInit() { if($this->connection === null) { $this->connection = \OC::$server->getDatabaseConnection(); } } /** * Sets and deletes system wide values * * @param array $configs Associative array with `key => value` pairs * If value is null, the config key will be deleted */ public function setSystemValues(array $configs) { $this->systemConfig->setValues($configs); } /** * Sets a new system wide value * * @param string $key the key of the value, under which will be saved * @param mixed $value the value that should be stored */ public function setSystemValue($key, $value) { $this->systemConfig->setValue($key, $value); } /** * Looks up a system wide defined value * * @param string $key the key of the value, under which it was saved * @param mixed $default the default value to be returned if the value isn't set * @return mixed the value or $default */ public function getSystemValue($key, $default = '') { return $this->systemConfig->getValue($key, $default); } /** * Delete a system wide defined value * * @param string $key the key of the value, under which it was saved */ public function deleteSystemValue($key) { $this->systemConfig->deleteValue($key); } /** * Get all keys stored for an app * * @param string $appName the appName that we stored the value under * @return string[] the keys stored for the app */ public function getAppKeys($appName) { return \OC::$server->getAppConfig()->getKeys($appName); } /** * Writes a new app wide value * * @param string $appName the appName that we want to store the value under * @param string $key the key of the value, under which will be saved * @param string $value the value that should be stored */ public function setAppValue($appName, $key, $value) { \OC::$server->getAppConfig()->setValue($appName, $key, $value); } /** * Looks up an app wide defined value * * @param string $appName the appName that we stored the value under * @param string $key the key of the value, under which it was saved * @param string $default the default value to be returned if the value isn't set * @return string the saved value */ public function getAppValue($appName, $key, $default = '') { return \OC::$server->getAppConfig()->getValue($appName, $key, $default); } /** * Delete an app wide defined value * * @param string $appName the appName that we stored the value under * @param string $key the key of the value, under which it was saved */ public function deleteAppValue($appName, $key) { \OC::$server->getAppConfig()->deleteKey($appName, $key); } /** * Removes all keys in appconfig belonging to the app * * @param string $appName the appName the configs are stored under */ public function deleteAppValues($appName) { \OC::$server->getAppConfig()->deleteApp($appName); } /** * Set a user defined value * * @param string $userId the userId of the user that we want to store the value under * @param string $appName the appName that we want to store the value under * @param string $key the key under which the value is being stored * @param string $value the value that you want to store * @param string $preCondition only update if the config value was previously the value passed as $preCondition * @throws \OCP\PreConditionNotMetException if a precondition is specified and is not met */ public function setUserValue($userId, $appName, $key, $value, $preCondition = null) { // TODO - FIXME $this->fixDIInit(); // Check if the key does exist $sql = 'SELECT `configvalue` FROM `*PREFIX*preferences` '. 'WHERE `userid` = ? AND `appid` = ? AND `configkey` = ?'; $result = $this->connection->executeQuery($sql, array($userId, $appName, $key)); $oldValue = $result->fetchColumn(); $result->closeCursor(); $exists = $oldValue !== false; if($oldValue === strval($value)) { // no changes return; } $data = array($value, $userId, $appName, $key); if (!$exists && $preCondition === null) { $sql = 'INSERT INTO `*PREFIX*preferences` (`configvalue`, `userid`, `appid`, `configkey`)'. 'VALUES (?, ?, ?, ?)'; } elseif ($exists) { $sql = 'UPDATE `*PREFIX*preferences` SET `configvalue` = ? '. 'WHERE `userid` = ? AND `appid` = ? AND `configkey` = ? '; if($preCondition !== null) { if($this->getSystemValue('dbtype', 'sqlite') === 'oci') { //oracle hack: need to explicitly cast CLOB to CHAR for comparison $sql .= 'AND to_char(`configvalue`) = ?'; } else { $sql .= 'AND `configvalue` = ?'; } $data[] = $preCondition; } } $affectedRows = $this->connection->executeUpdate($sql, $data); // only add to the cache if we already loaded data for the user if ($affectedRows > 0 && isset($this->userCache[$userId])) { if (!isset($this->userCache[$userId][$appName])) { $this->userCache[$userId][$appName] = array(); } $this->userCache[$userId][$appName][$key] = $value; } if ($preCondition !== null && $affectedRows === 0) { throw new PreConditionNotMetException; } } /** * Getting a user defined value * * @param string $userId the userId of the user that we want to store the value under * @param string $appName the appName that we stored the value under * @param string $key the key under which the value is being stored * @param string $default the default value to be returned if the value isn't set * @return string */ public function getUserValue($userId, $appName, $key, $default = '') { $data = $this->getUserValues($userId); if (isset($data[$appName]) and isset($data[$appName][$key])) { return $data[$appName][$key]; } else { return $default; } } /** * Get the keys of all stored by an app for the user * * @param string $userId the userId of the user that we want to store the value under * @param string $appName the appName that we stored the value under * @return string[] */ public function getUserKeys($userId, $appName) { $data = $this->getUserValues($userId); if (isset($data[$appName])) { return array_keys($data[$appName]); } else { return array(); } } /** * Delete a user value * * @param string $userId the userId of the user that we want to store the value under * @param string $appName the appName that we stored the value under * @param string $key the key under which the value is being stored */ public function deleteUserValue($userId, $appName, $key) { // TODO - FIXME $this->fixDIInit(); $sql = 'DELETE FROM `*PREFIX*preferences` '. 'WHERE `userid` = ? AND `appid` = ? AND `configkey` = ?'; $this->connection->executeUpdate($sql, array($userId, $appName, $key)); if (isset($this->userCache[$userId]) and isset($this->userCache[$userId][$appName])) { unset($this->userCache[$userId][$appName][$key]); } } /** * Delete all user values * * @param string $userId the userId of the user that we want to remove all values from */ public function deleteAllUserValues($userId) { // TODO - FIXME $this->fixDIInit(); $sql = 'DELETE FROM `*PREFIX*preferences` '. 'WHERE `userid` = ?'; $this->connection->executeUpdate($sql, array($userId)); unset($this->userCache[$userId]); } /** * Delete all user related values of one app * * @param string $appName the appName of the app that we want to remove all values from */ public function deleteAppFromAllUsers($appName) { // TODO - FIXME $this->fixDIInit(); $sql = 'DELETE FROM `*PREFIX*preferences` '. 'WHERE `appid` = ?'; $this->connection->executeUpdate($sql, array($appName)); foreach ($this->userCache as &$userCache) { unset($userCache[$appName]); } } /** * Returns all user configs sorted by app of one user * * @param string $userId the user ID to get the app configs from * @return array[] - 2 dimensional array with the following structure: * [ $appId => * [ $key => $value ] * ] */ private function getUserValues($userId) { // TODO - FIXME $this->fixDIInit(); if (isset($this->userCache[$userId])) { return $this->userCache[$userId]; } $data = array(); $query = 'SELECT `appid`, `configkey`, `configvalue` FROM `*PREFIX*preferences` WHERE `userid` = ?'; $result = $this->connection->executeQuery($query, array($userId)); while ($row = $result->fetch()) { $appId = $row['appid']; if (!isset($data[$appId])) { $data[$appId] = array(); } $data[$appId][$row['configkey']] = $row['configvalue']; } $this->userCache[$userId] = $data; return $data; } /** * Fetches a mapped list of userId -> value, for a specified app and key and a list of user IDs. * * @param string $appName app to get the value for * @param string $key the key to get the value for * @param array $userIds the user IDs to fetch the values for * @return array Mapped values: userId => value */ public function getUserValueForUsers($appName, $key, $userIds) { // TODO - FIXME $this->fixDIInit(); if (empty($userIds) || !is_array($userIds)) { return array(); } $chunkedUsers = array_chunk($userIds, 50, true); $placeholders50 = implode(',', array_fill(0, 50, '?')); $userValues = array(); foreach ($chunkedUsers as $chunk) { $queryParams = $chunk; // create [$app, $key, $chunkedUsers] array_unshift($queryParams, $key); array_unshift($queryParams, $appName); $placeholders = (sizeof($chunk) == 50) ? $placeholders50 : implode(',', array_fill(0, sizeof($chunk), '?')); $query = 'SELECT `userid`, `configvalue` ' . 'FROM `*PREFIX*preferences` ' . 'WHERE `appid` = ? AND `configkey` = ? ' . 'AND `userid` IN (' . $placeholders . ')'; $result = $this->connection->executeQuery($query, $queryParams); while ($row = $result->fetch()) { $userValues[$row['userid']] = $row['configvalue']; } } return $userValues; } /** * Determines the users that have the given value set for a specific app-key-pair * * @param string $appName the app to get the user for * @param string $key the key to get the user for * @param string $value the value to get the user for * @return array of user IDs */ public function getUsersForUserValue($appName, $key, $value) { // TODO - FIXME $this->fixDIInit(); $sql = 'SELECT `userid` FROM `*PREFIX*preferences` ' . 'WHERE `appid` = ? AND `configkey` = ? '; if($this->getSystemValue('dbtype', 'sqlite') === 'oci') { //oracle hack: need to explicitly cast CLOB to CHAR for comparison $sql .= 'AND to_char(`configvalue`) = ?'; } else { $sql .= 'AND `configvalue` = ?'; } $result = $this->connection->executeQuery($sql, array($appName, $key, $value)); $userIDs = array(); while ($row = $result->fetch()) { $userIDs[] = $row['userid']; } return $userIDs; } } able29 Nextcloud server, a safe home for all your data: https://github.com/nextcloud/serverwww-data
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ownCloud is written by:
	Frank Karlitschek
	Robin Appelman
	Jakob Sack
	Jan-Christoph Borchardt
	Michael Gapczynski
	Arthur Schiwon
	Bart Visscher
	Georg Ehrke
	Brice Maron
	Tom Needham
	Marvin Thomas Rabe
	Florian Pritz
	Bartek Przybylski
	Thomas Müller
	Klaas Freitag
	Sam Tuke
	Simon Birnbach
	Lukas Reschke
	Christian Reiner
	Daniel Molkentin
	…

With help from many libraries and frameworks including:
	Open Collaboration Services
	SabreDAV
	jQuery
	…