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<?php
# Copyright (C) 2004 Brion Vibber, lcrocker, Tim Starling,
# Domas Mituzas, Ashar Voultoiz, Jens Frank, Zhengzhu.
#
# © 2006 Rob Church <robchur@gmail.com>
#
# http://www.mediawiki.org/
#
# 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
/**
*
* @package MediaWiki
* @subpackage SpecialPage
*/
/**
* This class is used to get a list of user. The ones with specials
* rights (sysop, bureaucrat, developer) will have them displayed
* next to their names.
*
* @package MediaWiki
* @subpackage SpecialPage
*/
class ListUsersPage extends QueryPage {
var $requestedGroup = '';
var $requestedUser = '';
function getName() {
return 'Listusers';
}
function isSyndicated() { return false; }
/**
* Not expensive, this class won't work properly with the caching system anyway
*/
function isExpensive() {
return false;
}
/**
* Fetch user page links and cache their existence
*/
function preprocessResults( &$db, &$res ) {
$batch = new LinkBatch;
while ( $row = $db->fetchObject( $res ) ) {
$batch->addObj( Title::makeTitleSafe( $row->namespace, $row->title ) );
}
$batch->execute();
// Back to start for display
if( $db->numRows( $res ) > 0 ) {
// If there are no rows we get an error seeking.
$db->dataSeek( $res, 0 );
}
}
/**
* Show a drop down list to select a group as well as a user name
* search box.
* @todo localize
*/
function getPageHeader( ) {
$self = $this->getTitle();
# Form tag
$out = wfOpenElement( 'form', array( 'method' => 'post', 'action' => $self->getLocalUrl() ) );
# Group drop-down list
$out .= wfElement( 'label', array( 'for' => 'group' ), wfMsg( 'group' ) ) . ' ';
$out .= wfOpenElement( 'select', array( 'name' => 'group' ) );
$out .= wfElement( 'option', array( 'value' => '' ), wfMsg( 'group-all' ) ); # Item for "all groups"
$groups = User::getAllGroups();
foreach( $groups as $group ) {
$attribs = array( 'value' => $group );
if( $group == $this->requestedGroup )
$attribs['selected'] = 'selected';
$out .= wfElement( 'option', $attribs, User::getGroupName( $group ) );
}
$out .= wfCloseElement( 'select' ) . ' ';;# . wfElement( 'br' );
# Username field
$out .= wfElement( 'label', array( 'for' => 'username' ), wfMsg( 'listusersfrom' ) ) . ' ';
$out .= wfElement( 'input', array( 'type' => 'text', 'id' => 'username', 'name' => 'username',
'value' => $this->requestedUser ) ) . ' ';
# Preserve offset and limit
if( $this->offset )
$out .= wfElement( 'input', array( 'type' => 'hidden', 'name' => 'offset', 'value' => $this->offset ) );
if( $this->limit )
$out .= wfElement( 'input', array( 'type' => 'hidden', 'name' => 'limit', 'value' => $this->limit ) );
# Submit button and form bottom
$out .= wfElement( 'input', array( 'type' => 'submit', 'value' => wfMsg( 'allpagessubmit' ) ) );
$out .= wfCloseElement( 'form' );
return $out;
}
function getSQL() {
global $wgDBtype;
$dbr =& wfGetDB( DB_SLAVE );
$user = $dbr->tableName( 'user' );
$user_groups = $dbr->tableName( 'user_groups' );
// We need to get an 'atomic' list of users, so that we
// don't break the list half-way through a user's group set
// and so that lists by group will show all group memberships.
//
// On MySQL 4.1 we could use GROUP_CONCAT to grab group
// assignments together with users pretty easily. On other
// versions, it's not so easy to do it consistently.
// For now we'll just grab the number of memberships, so
// we can then do targetted checks on those who are in
// non-default groups as we go down the list.
$userspace = NS_USER;
$sql = "SELECT 'Listusers' as type, $userspace AS namespace, user_name AS title, " .
"user_name as value, user_id, COUNT(ug_group) as numgroups " .
"FROM $user ".
"LEFT JOIN $user_groups ON user_id=ug_user " .
$this->userQueryWhere( $dbr ) .
" GROUP BY user_name";
if ( $wgDBtype != 'mysql' ) {
$sql .= ",user_id";
}
return $sql;
}
function userQueryWhere( &$dbr ) {
$conds = $this->userQueryConditions( $dbr );
return empty( $conds )
? ""
: "WHERE " . $dbr->makeList( $conds, LIST_AND );
}
function userQueryConditions( $dbr ) {
$conds = array();
if( $this->requestedGroup != '' ) {
$conds['ug_group'] = $this->requestedGroup;
}
if( $this->requestedUser != '' ) {
$conds[] = 'user_name >= ' . $dbr->addQuotes( $this->requestedUser );
}
return $conds;
}
function linkParameters() {
$conds = array();
if( $this->requestedGroup != '' ) {
$conds['group'] = $this->requestedGroup;
}
if( $this->requestedUser != '' ) {
$conds['username'] = $this->requestedUser;
}
return $conds;
}
function sortDescending() {
return false;
}
function formatResult( $skin, $result ) {
$userPage = Title::makeTitle( $result->namespace, $result->title );
$name = $skin->makeLinkObj( $userPage, htmlspecialchars( $userPage->getText() ) );
$groups = null;
if( !isset( $result->numgroups ) || $result->numgroups > 0 ) {
$dbr =& wfGetDB( DB_SLAVE );
$result = $dbr->select( 'user_groups',
array( 'ug_group' ),
array( 'ug_user' => $result->user_id ),
'ListUsersPage::formatResult' );
$groups = array();
while( $row = $dbr->fetchObject( $result ) ) {
$groups[$row->ug_group] = User::getGroupMember( $row->ug_group );
}
$dbr->freeResult( $result );
if( count( $groups ) > 0 ) {
foreach( $groups as $group => $desc ) {
$list[] = User::makeGroupLinkHTML( $group, $desc );
}
$groups = implode( ', ', $list );
} else {
$groups = '';
}
}
return wfSpecialList( $name, $groups );
}
}
/**
* constructor
* $par string (optional) A group to list users from
*/
function wfSpecialListusers( $par = null ) {
global $wgRequest;
list( $limit, $offset ) = wfCheckLimits();
$slu = new ListUsersPage();
/**
* Get some parameters
*/
$groupTarget = isset($par) ? $par : $wgRequest->getVal( 'group' );
$slu->requestedGroup = $groupTarget;
# 'Validate' the username first
$username = $wgRequest->getText( 'username', '' );
$user = User::newFromName( $username );
$slu->requestedUser = is_object( $user ) ? $user->getName() : '';
return $slu->doQuery( $offset, $limit );
}
?>
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