includes/specials/SpecialListusers.php

   1 <?php
   2 /**
   3  * Implements Special:Listusers
   4  *
   5  * Copyright © 2004 Brion Vibber, lcrocker, Tim Starling,
   6  * Domas Mituzas, Antoine Musso, Jens Frank, Zhengzhu,
   7  * 2006 Rob Church <robchur@gmail.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  * @ingroup SpecialPage
  26  */
  27
  28 /**
  29  * This class is used to get a list of user. The ones with specials
  30  * rights (sysop, bureaucrat, developer) will have them displayed
  31  * next to their names.
  32  *
  33  * @ingroup SpecialPage
  34  */
  35 class UsersPager extends AlphabeticPager {
  36
  37         function __construct( IContextSource $context = null, $par = null ) {
  38                 if ( $context ) {
  39                         $this->setContext( $context );
  40                 }
  41
  42                 $request = $this->getRequest();
  43                 $par = ( $par !== null ) ? $par : '';
  44                 $parms = explode( '/', $par );
  45                 $symsForAll = array( '*', 'user' );
  46                 if ( $parms[0] != '' && ( in_array( $par, User::getAllGroups() ) || in_array( $par, $symsForAll ) ) ) {
  47                         $this->requestedGroup = $par;
  48                         $un = $request->getText( 'username' );
  49                 } elseif ( count( $parms ) == 2 ) {
  50                         $this->requestedGroup = $parms[0];
  51                         $un = $parms[1];
  52                 } else {
  53                         $this->requestedGroup = $request->getVal( 'group' );
  54                         $un = ( $par != '' ) ? $par : $request->getText( 'username' );
  55                 }
  56                 if ( in_array( $this->requestedGroup, $symsForAll ) ) {
  57                         $this->requestedGroup = '';
  58                 }
  59                 $this->editsOnly = $request->getBool( 'editsOnly' );
  60                 $this->creationSort = $request->getBool( 'creationSort' );
  61
  62                 $this->requestedUser = '';
  63                 if ( $un != '' ) {
  64                         $username = Title::makeTitleSafe( NS_USER, $un );
  65                         if( ! is_null( $username ) ) {
  66                                 $this->requestedUser = $username->getText();
  67                         }
  68                 }
  69                 parent::__construct();
  70         }
  71
  72         function getIndexField() {
  73                 return $this->creationSort ? 'user_id' : 'user_name';
  74         }
  75
  76         function getQueryInfo() {
  77                 $dbr = wfGetDB( DB_SLAVE );
  78                 $conds = array();
  79                 // Don't show hidden names
  80                 if( !$this->getUser()->isAllowed('hideuser') ) {
  81                         $conds[] = 'ipb_deleted IS NULL';
  82                 }
  83
  84                 $options = array();
  85
  86                 if( $this->requestedGroup != '' ) {
  87                         $conds['ug_group'] = $this->requestedGroup;
  88                 } else {
  89                         //$options['USE INDEX'] = $this->creationSort ? 'PRIMARY' : 'user_name';
  90                 }
  91                 if( $this->requestedUser != '' ) {
  92                         # Sorted either by account creation or name
  93                         if( $this->creationSort ) {
  94                                 $conds[] = 'user_id >= ' . intval( User::idFromName( $this->requestedUser ) );
  95                         } else {
  96                                 $conds[] = 'user_name >= ' . $dbr->addQuotes( $this->requestedUser );
  97                         }
  98                 }
  99                 if( $this->editsOnly ) {
 100                         $conds[] = 'user_editcount > 0';
 101                 }
 102
 103                 $options['GROUP BY'] = $this->creationSort ? 'user_id' : 'user_name';
 104
 105                 $query = array(
 106                         'tables' => array( 'user', 'user_groups', 'ipblocks'),
 107                         'fields' => array(
 108                                 $this->creationSort ? 'MAX(user_name) AS user_name' : 'user_name',
 109                                 $this->creationSort ? 'user_id' : 'MAX(user_id) AS user_id',
 110                                 'MAX(user_editcount) AS edits',
 111                                 'COUNT(ug_group) AS numgroups',
 112                                 'MAX(ug_group) AS singlegroup', // the usergroup if there is only one
 113                                 'MIN(user_registration) AS creation',
 114                                 'MAX(ipb_deleted) AS ipb_deleted' // block/hide status
 115                         ),
 116                         'options' => $options,
 117                         'join_conds' => array(
 118                                 'user_groups' => array( 'LEFT JOIN', 'user_id=ug_user' ),
 119                                 'ipblocks' => array( 'LEFT JOIN', 'user_id=ipb_user AND ipb_deleted=1 AND ipb_auto=0' ),
 120                         ),
 121                         'conds' => $conds
 122                 );
 123
 124                 wfRunHooks( 'SpecialListusersQueryInfo', array( $this, &$query ) );
 125                 return $query;
 126         }
 127
 128         function formatRow( $row ) {
 129                 if ($row->user_id == 0) #Bug 16487
 130                         return '';
 131
 132                 $userPage = Title::makeTitle( NS_USER, $row->user_name );
 133                 $name = Linker::link( $userPage, htmlspecialchars( $userPage->getText() ) );
 134
 135                 $lang = $this->getLanguage();
 136
 137                 $groups_list = self::getGroups( $row->user_id );
 138                 if( count( $groups_list ) > 0 ) {
 139                         $list = array();
 140                         foreach( $groups_list as $group )
 141                                 $list[] = self::buildGroupLink( $group, $userPage->getText() );
 142                         $groups = $lang->commaList( $list );
 143                 } else {
 144                         $groups = '';
 145                 }
 146
 147                 $item = $lang->specialList( $name, $groups );
 148                 if( $row->ipb_deleted ) {
 149                         $item = "<span class=\"deleted\">$item</span>";
 150                 }
 151
 152                 global $wgEdititis;
 153                 if ( $wgEdititis ) {
 154                         $editCount = $lang->formatNum( $row->edits );
 155                         $edits = ' [' . wfMsgExt( 'usereditcount', array( 'parsemag', 'escape' ), $editCount ) . ']';
 156                 } else {
 157                         $edits = '';
 158                 }
 159
 160                 $created = '';
 161                 # Some rows may be NULL
 162                 if( $row->creation ) {
 163                         $d = $lang->date( wfTimestamp( TS_MW, $row->creation ), true );
 164                         $t = $lang->time( wfTimestamp( TS_MW, $row->creation ), true );
 165                         $created = ' (' . wfMsgExt( 'usercreated', array( 'parsemag', 'escape' ), $d, $t, $row->user_name ) . ')';
 166                 }
 167
 168                 wfRunHooks( 'SpecialListusersFormatRow', array( &$item, $row ) );
 169                 return "<li>{$item}{$edits}{$created}</li>";
 170         }
 171
 172         function getBody() {
 173                 if( !$this->mQueryDone ) {
 174                         $this->doQuery();
 175                 }
 176                 $this->mResult->rewind();
 177                 $batch = new LinkBatch;
 178                 foreach ( $this->mResult as $row ) {
 179                         $batch->addObj( Title::makeTitleSafe( NS_USER, $row->user_name ) );
 180                 }
 181                 $batch->execute();
 182                 $this->mResult->rewind();
 183                 return parent::getBody();
 184         }
 185
 186         function getPageHeader( ) {
 187                 global $wgScript;
 188                 // @todo Add a PrefixedBaseDBKey
 189                 list( $self ) = explode( '/', $this->getTitle()->getPrefixedDBkey() );
 190
 191                 # Form tag
 192                 $out  = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'id' => 'mw-listusers-form' ) ) .
 193                         Xml::fieldset( wfMsg( 'listusers' ) ) .
 194                         Html::hidden( 'title', $self );
 195
 196                 # Username field
 197                 $out .= Xml::label( wfMsg( 'listusersfrom' ), 'offset' ) . ' ' .
 198                         Xml::input( 'username', 20, $this->requestedUser, array( 'id' => 'offset' ) ) . ' ';
 199
 200                 # Group drop-down list
 201                 $out .= Xml::label( wfMsg( 'group' ), 'group' ) . ' ' .
 202                         Xml::openElement('select',  array( 'name' => 'group', 'id' => 'group' ) ) .
 203                         Xml::option( wfMsg( 'group-all' ), '' );
 204                 foreach( $this->getAllGroups() as $group => $groupText )
 205                         $out .= Xml::option( $groupText, $group, $group == $this->requestedGroup );
 206                 $out .= Xml::closeElement( 'select' ) . '<br />';
 207                 $out .= Xml::checkLabel( wfMsg('listusers-editsonly'), 'editsOnly', 'editsOnly', $this->editsOnly );
 208                 $out .= '&#160;';
 209                 $out .= Xml::checkLabel( wfMsg('listusers-creationsort'), 'creationSort', 'creationSort', $this->creationSort );
 210                 $out .= '<br />';
 211
 212                 wfRunHooks( 'SpecialListusersHeaderForm', array( $this, &$out ) );
 213
 214                 # Submit button and form bottom
 215                 $out .= Html::hidden( 'limit', $this->mLimit );
 216                 $out .= Xml::submitButton( wfMsg( 'allpagessubmit' ) );
 217                 wfRunHooks( 'SpecialListusersHeader', array( $this, &$out ) );
 218                 $out .= Xml::closeElement( 'fieldset' ) .
 219                         Xml::closeElement( 'form' );
 220
 221                 return $out;
 222         }
 223
 224         /**
 225          * Get a list of all explicit groups
 226          * @return array
 227          */
 228         function getAllGroups() {
 229                 $result = array();
 230                 foreach( User::getAllGroups() as $group ) {
 231                         $result[$group] = User::getGroupName( $group );
 232                 }
 233                 asort( $result );
 234                 return $result;
 235         }
 236
 237         /**
 238          * Preserve group and username offset parameters when paging
 239          * @return array
 240          */
 241         function getDefaultQuery() {
 242                 $query = parent::getDefaultQuery();
 243                 if( $this->requestedGroup != '' )
 244                         $query['group'] = $this->requestedGroup;
 245                 if( $this->requestedUser != '' )
 246                         $query['username'] = $this->requestedUser;
 247                 wfRunHooks( 'SpecialListusersDefaultQuery', array( $this, &$query ) );
 248                 return $query;
 249         }
 250
 251         /**
 252          * Get a list of groups the specified user belongs to
 253          *
 254          * @param $uid Integer: user id
 255          * @return array
 256          */
 257         protected static function getGroups( $uid ) {
 258                 $user = User::newFromId( $uid );
 259                 $groups = array_diff( $user->getEffectiveGroups(), User::getImplicitGroups() );
 260                 return $groups;
 261         }
 262
 263         /**
 264          * Format a link to a group description page
 265          *
 266          * @param $group String: group name
 267          * @param $username String Username
 268          * @return string
 269          */
 270         protected static function buildGroupLink( $group, $username ) {
 271                 return User::makeGroupLinkHtml( $group, htmlspecialchars( User::getGroupMember( $group, $username ) ) );
 272         }
 273 }
 274
 275 /**
 276  * @ingroup SpecialPage
 277  */
 278 class SpecialListUsers extends SpecialPage {
 279
 280         /**
 281          * Constructor
 282          */
 283         public function __construct() {
 284                 parent::__construct( 'Listusers' );
 285         }
 286
 287         /**
 288          * Show the special page
 289          *
 290          * @param $par string (optional) A group to list users from
 291          */
 292         public function execute( $par ) {
 293                 $this->setHeaders();
 294                 $this->outputHeader();
 295
 296                 $up = new UsersPager( $this->getContext(), $par );
 297
 298                 # getBody() first to check, if empty
 299                 $usersbody = $up->getBody();
 300
 301                 $s = $up->getPageHeader();
 302                 if( $usersbody ) {
 303                         $s .= $up->getNavigationBar();
 304                         $s .= Html::rawElement( 'ul', array(), $usersbody );
 305                         $s .= $up->getNavigationBar();
 306                 } else {
 307                         $s .= wfMessage( 'listusers-noresult' )->parseAsBlock();
 308                 }
 309
 310                 $this->getOutput()->addHTML( $s );
 311         }
 312 }