server/lib/private/preferences.php
Arthur Schiwon 3338a0f236 port of #9500
don't trigger update from checkPassword, it is already  called by userExists, this is enough.

do not write to database when the value is the same

add test cases. also split test classes in a file each, looks like only the first class is being executed

also appconfig shall not write to database if the value is unchanged
2014-07-08 16:32:01 +02:00

365 lines
9.2 KiB
PHP

<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @author Jakob Sack
* @copyright 2012 Frank Karlitschek frank@owncloud.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
/*
*
* The following SQL statement is just a help for developers and will not be
* executed!
*
* CREATE TABLE `preferences` (
* `userid` VARCHAR( 255 ) NOT NULL ,
* `appid` VARCHAR( 255 ) NOT NULL ,
* `configkey` VARCHAR( 255 ) NOT NULL ,
* `configvalue` VARCHAR( 255 ) NOT NULL
* )
*
*/
namespace OC;
use \OC\DB\Connection;
/**
* This class provides an easy way for storing user preferences.
*/
class Preferences {
/**
* @var \OC\DB\Connection
*/
protected $conn;
/**
* 3 dimensional array with the following structure:
* [ $userId =>
* [ $appId =>
* [ $key => $value ]
* ]
* ]
*
* @var array $cache
*/
protected $cache = array();
/**
* @param \OC\DB\Connection $conn
*/
public function __construct(Connection $conn) {
$this->conn = $conn;
}
/**
* Get all users using the preferences
* @return array an array of user ids
*
* This function returns a list of all users that have at least one entry
* in the preferences table.
*/
public function getUsers() {
$query = 'SELECT DISTINCT `userid` FROM `*PREFIX*preferences`';
$result = $this->conn->executeQuery($query);
$users = array();
while ($userid = $result->fetchColumn()) {
$users[] = $userid;
}
return $users;
}
/**
* @param string $user
* @return array[]
*/
protected function getUserValues($user) {
if (isset($this->cache[$user])) {
return $this->cache[$user];
}
$data = array();
$query = 'SELECT `appid`, `configkey`, `configvalue` FROM `*PREFIX*preferences` WHERE `userid` = ?';
$result = $this->conn->executeQuery($query, array($user));
while ($row = $result->fetch()) {
$app = $row['appid'];
if (!isset($data[$app])) {
$data[$app] = array();
}
$data[$app][$row['configkey']] = $row['configvalue'];
}
$this->cache[$user] = $data;
return $data;
}
/**
* Get all apps of an user
* @param string $user user
* @return integer[] with app ids
*
* This function returns a list of all apps of the user that have at least
* one entry in the preferences table.
*/
public function getApps($user) {
$data = $this->getUserValues($user);
return array_keys($data);
}
/**
* Get the available keys for an app
* @param string $user user
* @param string $app the app we are looking for
* @return array an array of key names
*
* This function gets all keys of an app of an user. Please note that the
* values are not returned.
*/
public function getKeys($user, $app) {
$data = $this->getUserValues($user);
if (isset($data[$app])) {
return array_keys($data[$app]);
} else {
return array();
}
}
/**
* Gets the preference
* @param string $user user
* @param string $app app
* @param string $key key
* @param string $default = null, default value if the key does not exist
* @return string the value or $default
*
* This function gets a value from the preferences table. If the key does
* not exist the default value will be returned
*/
public function getValue($user, $app, $key, $default = null) {
$data = $this->getUserValues($user);
if (isset($data[$app]) and isset($data[$app][$key])) {
return $data[$app][$key];
} else {
return $default;
}
}
/**
* sets a value in the preferences
* @param string $user user
* @param string $app app
* @param string $key key
* @param string $value value
* @param string $preCondition only set value if the key had a specific value before
* @return bool true if value was set, otherwise false
*
* Adds a value to the preferences. If the key did not exist before, it
* will be added automagically.
*/
public function setValue($user, $app, $key, $value, $preCondition = null) {
// Check if the key does exist
$query = 'SELECT `configvalue` FROM `*PREFIX*preferences`'
. ' WHERE `userid` = ? AND `appid` = ? AND `configkey` = ?';
$oldValue = $this->conn->fetchColumn($query, array($user, $app, $key));
$exists = $oldValue !== false;
if($oldValue === strval($value)) {
// no changes
return true;
}
$affectedRows = 0;
if (!$exists && $preCondition === null) {
$data = array(
'userid' => $user,
'appid' => $app,
'configkey' => $key,
'configvalue' => $value,
);
$affectedRows = $this->conn->insert('*PREFIX*preferences', $data);
} elseif ($exists) {
$data = array($value, $user, $app, $key);
$sql = "UPDATE `*PREFIX*preferences` SET `configvalue` = ?"
. " WHERE `userid` = ? AND `appid` = ? AND `configkey` = ?";
if ($preCondition !== null) {
if (\OC_Config::getValue( '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 = $this->conn->executeUpdate($sql, $data);
}
// only add to the cache if we already loaded data for the user
if ($affectedRows > 0 && isset($this->cache[$user])) {
if (!isset($this->cache[$user][$app])) {
$this->cache[$user][$app] = array();
}
$this->cache[$user][$app][$key] = $value;
}
return ($affectedRows > 0) ? true : false;
}
/**
* Gets the preference for an array of users
* @param string $app
* @param string $key
* @param array $users
* @return array Mapped values: userid => value
*/
public function getValueForUsers($app, $key, $users) {
if (empty($users) || !is_array($users)) {
return array();
}
$chunked_users = array_chunk($users, 50, true);
$placeholders_50 = implode(',', array_fill(0, 50, '?'));
$userValues = array();
foreach ($chunked_users as $chunk) {
$queryParams = $chunk;
array_unshift($queryParams, $key);
array_unshift($queryParams, $app);
$placeholders = (sizeof($chunk) == 50) ? $placeholders_50 : implode(',', array_fill(0, sizeof($chunk), '?'));
$query = 'SELECT `userid`, `configvalue` '
. ' FROM `*PREFIX*preferences` '
. ' WHERE `appid` = ? AND `configkey` = ?'
. ' AND `userid` IN (' . $placeholders . ')';
$result = $this->conn->executeQuery($query, $queryParams);
while ($row = $result->fetch()) {
$userValues[$row['userid']] = $row['configvalue'];
}
}
return $userValues;
}
/**
* Gets the users for a preference
* @param string $app
* @param string $key
* @param string $value
* @return array
*/
public function getUsersForValue($app, $key, $value) {
$users = array();
$query = 'SELECT `userid` '
. ' FROM `*PREFIX*preferences` '
. ' WHERE `appid` = ? AND `configkey` = ? AND ';
if (\OC_Config::getValue( 'dbtype', 'sqlite' ) === 'oci') {
//FIXME oracle hack: need to explicitly cast CLOB to CHAR for comparison
$query .= ' to_char(`configvalue`)= ?';
} else {
$query .= ' `configvalue` = ?';
}
$result = $this->conn->executeQuery($query, array($app, $key, $value));
while ($row = $result->fetch()) {
$users[] = $row['userid'];
}
return $users;
}
/**
* Deletes a key
* @param string $user user
* @param string $app app
* @param string $key key
*
* Deletes a key.
*/
public function deleteKey($user, $app, $key) {
$where = array(
'userid' => $user,
'appid' => $app,
'configkey' => $key,
);
$this->conn->delete('*PREFIX*preferences', $where);
if (isset($this->cache[$user]) and isset($this->cache[$user][$app])) {
unset($this->cache[$user][$app][$key]);
}
}
/**
* Remove app of user from preferences
* @param string $user user
* @param string $app app
*
* Removes all keys in preferences belonging to the app and the user.
*/
public function deleteApp($user, $app) {
$where = array(
'userid' => $user,
'appid' => $app,
);
$this->conn->delete('*PREFIX*preferences', $where);
if (isset($this->cache[$user])) {
unset($this->cache[$user][$app]);
}
}
/**
* Remove user from preferences
* @param string $user user
*
* Removes all keys in preferences belonging to the user.
*/
public function deleteUser($user) {
$where = array(
'userid' => $user,
);
$this->conn->delete('*PREFIX*preferences', $where);
unset($this->cache[$user]);
}
/**
* Remove app from all users
* @param string $app app
*
* Removes all keys in preferences belonging to the app.
*/
public function deleteAppFromAllUsers($app) {
$where = array(
'appid' => $app,
);
$this->conn->delete('*PREFIX*preferences', $where);
foreach ($this->cache as &$userCache) {
unset($userCache[$app]);
}
}
}
require_once __DIR__ . '/legacy/' . basename(__FILE__);