wiki.techinc.nl/includes/UserRightsProxy.php
2008-06-02 17:50:59 +00:00

146 lines
3.4 KiB
PHP

<?php
/**
* Cut-down copy of User interface for local-interwiki-database
* user rights manipulation.
*/
class UserRightsProxy {
private function __construct( $db, $database, $name, $id ) {
$this->db = $db;
$this->database = $database;
$this->name = $name;
$this->id = intval( $id );
}
/**
* Confirm the selected database name is a valid local interwiki database name.
* @return bool
*/
public static function validDatabase( $database ) {
global $wgLocalDatabases;
return in_array( $database, $wgLocalDatabases );
}
public static function whoIs( $database, $id ) {
$user = self::newFromId( $database, $id );
if( $user ) {
return $user->name;
} else {
return false;
}
}
/**
* Factory function; get a remote user entry by ID number.
* @return UserRightsProxy or null if doesn't exist
*/
public static function newFromId( $database, $id ) {
return self::newFromLookup( $database, 'user_id', intval( $id ) );
}
public static function newFromName( $database, $name ) {
return self::newFromLookup( $database, 'user_name', $name );
}
private static function newFromLookup( $database, $field, $value ) {
$db = self::getDB( $database );
if( $db ) {
$row = $db->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 $database string
* @return Database or null if invalid selection
*/
public static function getDB( $database ) {
global $wgLocalDatabases, $wgDBname;
if( 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;
}
public function getId() {
return $this->id;
}
public function isAnon() {
return $this->getId() == 0;
}
public function getName() {
return $this->name . '@' . $this->database;
}
public function getUserPage() {
return Title::makeTitle( NS_USER, $this->getName() );
}
// Replaces getUserGroups()
function getGroups() {
$res = $this->db->select( 'user_groups',
array( 'ug_group' ),
array( 'ug_user' => $this->id ),
__METHOD__ );
$groups = array();
while( $row = $this->db->fetchObject( $res ) ) {
$groups[] = $row->ug_group;
}
return $groups;
}
// replaces addUserGroup
function addGroup( $group ) {
$this->db->insert( 'user_groups',
array(
'ug_user' => $this->id,
'ug_group' => $group,
),
__METHOD__,
array( 'IGNORE' ) );
}
// replaces removeUserGroup
function removeGroup( $group ) {
$this->db->delete( 'user_groups',
array(
'ug_user' => $this->id,
'ug_group' => $group,
),
__METHOD__ );
}
// replaces touchUser
function invalidateCache() {
$this->db->update( 'user',
array( 'user_touched' => $this->db->timestamp() ),
array( 'user_id' => $this->id ),
__METHOD__ );
global $wgMemc;
if ( function_exists( 'wfForeignMemcKey' ) ) {
$key = wfForeignMemcKey( $this->database, false, 'user', 'id', $this->id );
} else {
$key = "$this->database:user:id:" . $this->id;
}
$wgMemc->delete( $key );
}
}