292 lines
7.0 KiB
PHP
292 lines
7.0 KiB
PHP
<?php
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/**
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* @author Arthur Schiwon <blizzz@owncloud.com>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Jakob Sack <mail@jakobsack.de>
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* @author Joas Schilling <nickvergessen@owncloud.com>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Lukas Reschke <lukas@owncloud.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <icewind@owncloud.com>
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* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
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* @author Scrutinizer Auto-Fixer <auto-fixer@scrutinizer-ci.com>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @copyright Copyright (c) 2015, ownCloud, Inc.
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC;
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use OCP\IAppConfig;
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use OCP\IDBConnection;
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/**
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* This class provides an easy way for apps to store config values in the
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* database.
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*/
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class AppConfig implements IAppConfig {
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/**
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* @var \OCP\IDBConnection $conn
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*/
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protected $conn;
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private $cache = array();
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/**
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* @param IDBConnection $conn
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*/
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public function __construct(IDBConnection $conn) {
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$this->conn = $conn;
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$this->configLoaded = false;
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}
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/**
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* @param string $app
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* @return array
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*/
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private function getAppValues($app) {
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$this->loadConfigValues();
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if (isset($this->cache[$app])) {
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return $this->cache[$app];
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}
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return [];
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}
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/**
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* Get all apps using the config
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*
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* @return array an array of app ids
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*
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* This function returns a list of all apps that have at least one
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* entry in the appconfig table.
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*/
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public function getApps() {
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$this->loadConfigValues();
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return $this->getSortedKeys($this->cache);
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}
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/**
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* Get the available keys for an app
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*
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* @param string $app the app we are looking for
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* @return array an array of key names
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*
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* This function gets all keys of an app. Please note that the values are
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* not returned.
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*/
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public function getKeys($app) {
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$this->loadConfigValues();
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if (isset($this->cache[$app])) {
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return $this->getSortedKeys($this->cache[$app]);
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}
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return [];
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}
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public function getSortedKeys($data) {
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$keys = array_keys($data);
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sort($keys);
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return $keys;
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}
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/**
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* Gets the config value
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*
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* @param string $app app
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* @param string $key key
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* @param string $default = null, default value if the key does not exist
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* @return string the value or $default
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*
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* This function gets a value from the appconfig table. If the key does
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* not exist the default value will be returned
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*/
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public function getValue($app, $key, $default = null) {
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$this->loadConfigValues();
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if ($this->hasKey($app, $key)) {
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return $this->cache[$app][$key];
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}
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return $default;
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}
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/**
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* check if a key is set in the appconfig
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*
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* @param string $app
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* @param string $key
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* @return bool
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*/
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public function hasKey($app, $key) {
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$this->loadConfigValues();
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return isset($this->cache[$app][$key]);
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}
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/**
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* Sets a value. If the key did not exist before it will be created.
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*
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* @param string $app app
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* @param string $key key
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* @param string $value value
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* @return bool True if the value was inserted or updated, false if the value was the same
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*/
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public function setValue($app, $key, $value) {
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if (!$this->hasKey($app, $key)) {
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$inserted = (bool) $this->conn->insertIfNotExist('*PREFIX*appconfig', [
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'appid' => $app,
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'configkey' => $key,
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'configvalue' => $value,
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], [
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'appid',
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'configkey',
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]);
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if ($inserted) {
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if (!isset($this->cache[$app])) {
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$this->cache[$app] = [];
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}
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$this->cache[$app][$key] = $value;
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return true;
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}
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}
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$sql = $this->conn->getQueryBuilder();
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$sql->update('appconfig')
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->set('configvalue', $sql->createParameter('configvalue'))
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->where($sql->expr()->eq('appid', $sql->createParameter('app')))
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->andWhere($sql->expr()->eq('configkey', $sql->createParameter('configkey')))
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->setParameter('configvalue', $value)
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->setParameter('app', $app)
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->setParameter('configkey', $key);
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/*
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* Only limit to the existing value for non-Oracle DBs:
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* http://docs.oracle.com/cd/E11882_01/server.112/e26088/conditions002.htm#i1033286
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* > Large objects (LOBs) are not supported in comparison conditions.
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*/
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if (!($this->conn instanceof \OC\DB\OracleConnection)) {
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// Only update the value when it is not the same
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$sql->andWhere($sql->expr()->neq('configvalue', $sql->createParameter('configvalue')))
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->setParameter('configvalue', $value);
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}
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$changedRow = (bool) $sql->execute();
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$this->cache[$app][$key] = $value;
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return $changedRow;
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}
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/**
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* Deletes a key
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*
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* @param string $app app
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* @param string $key key
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* @return boolean|null
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*/
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public function deleteKey($app, $key) {
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$this->loadConfigValues();
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$sql = $this->conn->getQueryBuilder();
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$sql->delete('appconfig')
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->where($sql->expr()->eq('appid', $sql->createParameter('app')))
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->andWhere($sql->expr()->eq('configkey', $sql->createParameter('configkey')))
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->setParameter('app', $app)
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->setParameter('configkey', $key);
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$sql->execute();
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unset($this->cache[$app][$key]);
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}
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/**
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* Remove app from appconfig
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*
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* @param string $app app
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* @return boolean|null
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*
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* Removes all keys in appconfig belonging to the app.
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*/
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public function deleteApp($app) {
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$this->loadConfigValues();
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$sql = $this->conn->getQueryBuilder();
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$sql->delete('appconfig')
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->where($sql->expr()->eq('appid', $sql->createParameter('app')))
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->setParameter('app', $app);
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$sql->execute();
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unset($this->cache[$app]);
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}
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/**
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* get multiple values, either the app or key can be used as wildcard by setting it to false
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*
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* @param string|false $app
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* @param string|false $key
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* @return array|false
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*/
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public function getValues($app, $key) {
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if (($app !== false) === ($key !== false)) {
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return false;
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}
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if ($key === false) {
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return $this->getAppValues($app);
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} else {
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$configs = [];
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foreach ($this->getApps() as $appId) {
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if ($this->hasKey($appId, $key)) {
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$configs[$appId] = $this->getValue($appId, $key);
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}
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}
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return $configs;
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}
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}
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/**
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* Load all the app config values
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*/
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protected function loadConfigValues() {
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if ($this->configLoaded) return;
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$this->cache = [];
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$sql = $this->conn->getQueryBuilder();
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$sql->select('*')
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->from('appconfig');
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$result = $sql->execute();
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while ($row = $result->fetch()) {
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if (!isset($this->cache[$row['appid']])) {
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$this->cache[$row['appid']] = [];
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}
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$this->cache[$row['appid']][$row['configkey']] = $row['configvalue'];
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}
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$result->closeCursor();
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$this->configLoaded = true;
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}
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}
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