Current File : /www/varak.net/wiki.varak.net/includes/UserRightsProxy.php
<?php
/**
* Representation of an user on a other locally-hosted wiki.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Cut-down copy of User interface for local-interwiki-database
* user rights manipulation.
*/
class UserRightsProxy {
/**
* Constructor.
*
* @see newFromId()
* @see newFromName()
* @param DatabaseBase $db Db connection
* @param string $database Database name
* @param string $name User name
* @param int $id User ID
*/
private function __construct( $db, $database, $name, $id ) {
$this->db = $db;
$this->database = $database;
$this->name = $name;
$this->id = intval( $id );
$this->newOptions = array();
}
/**
* Accessor for $this->database
*
* @return string Database name
*/
public function getDBName() {
return $this->database;
}
/**
* Confirm the selected database name is a valid local interwiki database name.
*
* @param string $database Database name
* @return bool
*/
public static function validDatabase( $database ) {
global $wgLocalDatabases;
return in_array( $database, $wgLocalDatabases );
}
/**
* Same as User::whoIs()
*
* @param string $database Database name
* @param int $id User ID
* @param bool $ignoreInvalidDB If true, don't check if $database is in $wgLocalDatabases
* @return string User name or false if the user doesn't exist
*/
public static function whoIs( $database, $id, $ignoreInvalidDB = false ) {
$user = self::newFromId( $database, $id, $ignoreInvalidDB );
if ( $user ) {
return $user->name;
} else {
return false;
}
}
/**
* Factory function; get a remote user entry by ID number.
*
* @param string $database Database name
* @param int $id User ID
* @param bool $ignoreInvalidDB If true, don't check if $database is in $wgLocalDatabases
* @return UserRightsProxy|null If doesn't exist
*/
public static function newFromId( $database, $id, $ignoreInvalidDB = false ) {
return self::newFromLookup( $database, 'user_id', intval( $id ), $ignoreInvalidDB );
}
/**
* Factory function; get a remote user entry by name.
*
* @param string $database Database name
* @param string $name User name
* @param bool $ignoreInvalidDB If true, don't check if $database is in $wgLocalDatabases
* @return UserRightsProxy|null If doesn't exist
*/
public static function newFromName( $database, $name, $ignoreInvalidDB = false ) {
return self::newFromLookup( $database, 'user_name', $name, $ignoreInvalidDB );
}
/**
* @param string $database
* @param string $field
* @param string $value
* @param bool $ignoreInvalidDB
* @return null|UserRightsProxy
*/
private static function newFromLookup( $database, $field, $value, $ignoreInvalidDB = false ) {
global $wgSharedDB, $wgSharedTables;
// If the user table is shared, perform the user query on it,
// but don't pass it to the UserRightsProxy,
// as user rights are normally not shared.
if ( $wgSharedDB && in_array( 'user', $wgSharedTables ) ) {
$userdb = self::getDB( $wgSharedDB, $ignoreInvalidDB );
} else {
$userdb = self::getDB( $database, $ignoreInvalidDB );
}
$db = self::getDB( $database, $ignoreInvalidDB );
if ( $db && $userdb ) {
$row = $userdb->selectRow( 'user',
array( 'user_id', 'user_name' ),
array( $field => $value ),
__METHOD__ );
if ( $row !== false ) {
return new UserRightsProxy( $db, $database,
$row->user_name,
intval( $row->user_id ) );
}
}
return null;
}
/**
* Open a database connection to work on for the requested user.
* This may be a new connection to another database for remote users.
*
* @param string $database
* @param bool $ignoreInvalidDB If true, don't check if $database is in $wgLocalDatabases
* @return DatabaseBase|null If invalid selection
*/
public static function getDB( $database, $ignoreInvalidDB = false ) {
global $wgDBname;
if ( $ignoreInvalidDB || self::validDatabase( $database ) ) {
if ( $database == $wgDBname ) {
// Hmm... this shouldn't happen though. :)
return wfGetDB( DB_MASTER );
} else {
return wfGetDB( DB_MASTER, array(), $database );
}
}
return null;
}
/**
* @return int
*/
public function getId() {
return $this->id;
}
/**
* @return bool
*/
public function isAnon() {
return $this->getId() == 0;
}
/**
* Same as User::getName()
*
* @return string
*/
public function getName() {
return $this->name . '@' . $this->database;
}
/**
* Same as User::getUserPage()
*
* @return Title
*/
public function getUserPage() {
return Title::makeTitle( NS_USER, $this->getName() );
}
/**
* Replaces User::getUserGroups()
* @return array
*/
function getGroups() {
$res = $this->db->select( 'user_groups',
array( 'ug_group' ),
array( 'ug_user' => $this->id ),
__METHOD__ );
$groups = array();
foreach ( $res as $row ) {
$groups[] = $row->ug_group;
}
return $groups;
}
/**
* Replaces User::addUserGroup()
* @param string $group
*
* @return bool
*/
function addGroup( $group ) {
$this->db->insert( 'user_groups',
array(
'ug_user' => $this->id,
'ug_group' => $group,
),
__METHOD__,
array( 'IGNORE' ) );
return true;
}
/**
* Replaces User::removeUserGroup()
* @param string $group
*
* @return bool
*/
function removeGroup( $group ) {
$this->db->delete( 'user_groups',
array(
'ug_user' => $this->id,
'ug_group' => $group,
),
__METHOD__ );
return true;
}
/**
* Replaces User::setOption()
* @param string $option
* @param mixed $value
*/
public function setOption( $option, $value ) {
$this->newOptions[$option] = $value;
}
public function saveSettings() {
$rows = array();
foreach ( $this->newOptions as $option => $value ) {
$rows[] = array(
'up_user' => $this->id,
'up_property' => $option,
'up_value' => $value,
);
}
$this->db->replace( 'user_properties',
array( array( 'up_user', 'up_property' ) ),
$rows, __METHOD__
);
$this->invalidateCache();
}
/**
* Replaces User::touchUser()
*/
function invalidateCache() {
$this->db->update( 'user',
array( 'user_touched' => $this->db->timestamp() ),
array( 'user_id' => $this->id ),
__METHOD__ );
$cache = ObjectCache::getMainWANInstance();
$key = wfForeignMemcKey( $this->database, false, 'user', 'id', $this->id );
$cache->delete( $key );
}
}
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