includes/specials/SpecialListusers.php

   1 <?php
   2 /**
   3  * Implements Special:Listusers
   4  *
   5  * Copyright © 2004 Brion Vibber, lcrocker, Tim Starling,
   6  * Domas Mituzas, Ashar Voultoiz, 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( $par=null ) {
  38                 global $wgRequest;
  39                 $parms = explode( '/', ($par = ( $par !== null ) ? $par : '' ) );
  40                 $symsForAll = array( '*', 'user' );
  41                 if ( $parms[0] != '' && ( in_array( $par, User::getAllGroups() ) || in_array( $par, $symsForAll ) ) ) {
  42                         $this->requestedGroup = $par;
  43                         $un = $wgRequest->getText( 'username' );
  44                 } else if ( count( $parms ) == 2 ) {
  45                         $this->requestedGroup = $parms[0];
  46                         $un = $parms[1];
  47                 } else {
  48                         $this->requestedGroup = $wgRequest->getVal( 'group' );
  49                         $un = ( $par != '' ) ? $par : $wgRequest->getText( 'username' );
  50                 }
  51                 if ( in_array( $this->requestedGroup, $symsForAll ) ) {
  52                         $this->requestedGroup = '';
  53                 }
  54                 $this->editsOnly = $wgRequest->getBool( 'editsOnly' );
  55                 $this->creationSort = $wgRequest->getBool( 'creationSort' );
  56
  57                 $this->requestedUser = '';
  58                 if ( $un != '' ) {
  59                         $username = Title::makeTitleSafe( NS_USER, $un );
  60                         if( ! is_null( $username ) ) {
  61                                 $this->requestedUser = $username->getText();
  62                         }
  63                 }
  64                 parent::__construct();
  65         }
  66
  67
  68         function getIndexField() {
  69                 return $this->creationSort ? 'user_id' : 'user_name';
  70         }
  71
  72         function getQueryInfo() {
  73                 global $wgUser;
  74                 $dbr = wfGetDB( DB_SLAVE );
  75                 $conds = array();
  76                 // Don't show hidden names
  77                 if( !$wgUser->isAllowed('hideuser') ) {
  78                         $conds[] = 'ipb_deleted IS NULL';
  79                 }
  80
  81                 $options = array();
  82
  83                 if( $this->requestedGroup != '' ) {
  84                         $conds['ug_group'] = $this->requestedGroup;
  85                 } else {
  86                         //$options['USE INDEX'] = $this->creationSort ? 'PRIMARY' : 'user_name';
  87                 }
  88                 if( $this->requestedUser != '' ) {
  89                         # Sorted either by account creation or name
  90                         if( $this->creationSort ) {
  91                                 $conds[] = 'user_id >= ' . intval( User::idFromName( $this->requestedUser ) );
  92                         } else {
  93                                 $conds[] = 'user_name >= ' . $dbr->addQuotes( $this->requestedUser );
  94                         }
  95                 }
  96                 if( $this->editsOnly ) {
  97                         $conds[] = 'user_editcount > 0';
  98                 }
  99
 100                 $options['GROUP BY'] = $this->creationSort ? 'user_id' : 'user_name';
 101
 102                 $query = array(
 103                         'tables' => array( 'user', 'user_groups', 'ipblocks'),
 104                         'fields' => array(
 105                                 $this->creationSort ? 'MAX(user_name) AS user_name' : 'user_name',
 106                                 $this->creationSort ? 'user_id' : 'MAX(user_id) AS user_id',
 107                                 'MAX(user_editcount) AS edits',
 108                                 'COUNT(ug_group) AS numgroups',
 109                                 'MAX(ug_group) AS singlegroup', // the usergroup if there is only one
 110                                 'MIN(user_registration) AS creation',
 111                                 'MAX(ipb_deleted) AS ipb_deleted' // block/hide status
 112                         ),
 113                         'options' => $options,
 114                         'join_conds' => array(
 115                                 'user_groups' => array( 'LEFT JOIN', 'user_id=ug_user' ),
 116                                 'ipblocks' => array( 'LEFT JOIN', 'user_id=ipb_user AND ipb_deleted=1 AND ipb_auto=0' ),
 117                         ),
 118                         'conds' => $conds
 119                 );
 120
 121                 wfRunHooks( 'SpecialListusersQueryInfo', array( $this, &$query ) );
 122                 return $query;
 123         }
 124
 125         function formatRow( $row ) {
 126                 global $wgLang;
 127
 128                 if ($row->user_id == 0) #Bug 16487
 129                         return '';
 130
 131                 $userPage = Title::makeTitle( NS_USER, $row->user_name );
 132                 $name = $this->getSkin()->link( $userPage, htmlspecialchars( $userPage->getText() ) );
 133
 134                 $groups_list = self::getGroups( $row->user_id );
 135                 if( count( $groups_list ) > 0 ) {
 136                         $list = array();
 137                         foreach( $groups_list as $group )
 138                                 $list[] = self::buildGroupLink( $group );
 139                         $groups = $wgLang->commaList( $list );
 140                 } else {
 141                         $groups = '';
 142                 }
 143
 144                 $item = wfSpecialList( $name, $groups );
 145                 if( $row->ipb_deleted ) {
 146                         $item = "<span class=\"deleted\">$item</span>";
 147                 }
 148
 149                 global $wgEdititis;
 150                 if ( $wgEdititis ) {
 151                         $editCount = $wgLang->formatNum( $row->edits );
 152                         $edits = ' [' . wfMsgExt( 'usereditcount', array( 'parsemag', 'escape' ), $editCount ) . ']';
 153                 } else {
 154                         $edits = '';
 155                 }
 156
 157                 $created = '';
 158                 # Some rows may be NULL
 159                 if( $row->creation ) {
 160                         $d = $wgLang->date( wfTimestamp( TS_MW, $row->creation ), true );
 161                         $t = $wgLang->time( wfTimestamp( TS_MW, $row->creation ), true );
 162                         $created = ' (' . wfMsg( 'usercreated', $d, $t ) . ')';
 163                         $created = htmlspecialchars( $created );
 164                 }
 165
 166                 wfRunHooks( 'SpecialListusersFormatRow', array( &$item, $row ) );
 167                 return "<li>{$item}{$edits}{$created}</li>";
 168         }
 169
 170         function getBody() {
 171                 if( !$this->mQueryDone ) {
 172                         $this->doQuery();
 173                 }
 174                 $this->mResult->rewind();
 175                 $batch = new LinkBatch;
 176                 foreach ( $this->mResult as $row ) {
 177                         $batch->addObj( Title::makeTitleSafe( NS_USER, $row->user_name ) );
 178                 }
 179                 $batch->execute();
 180                 $this->mResult->rewind();
 181                 return parent::getBody();
 182         }
 183
 184         function getPageHeader( ) {
 185                 global $wgScript;
 186                 $self = $this->getTitle();
 187
 188                 # Form tag
 189                 $out  = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'id' => 'mw-listusers-form' ) ) .
 190                         Xml::fieldset( wfMsg( 'listusers' ) ) .
 191                         Html::hidden( 'title', $self->getPrefixedDbKey() );
 192
 193                 # Username field
 194                 $out .= Xml::label( wfMsg( 'listusersfrom' ), 'offset' ) . ' ' .
 195                         Xml::input( 'username', 20, $this->requestedUser, array( 'id' => 'offset' ) ) . ' ';
 196
 197                 # Group drop-down list
 198                 $out .= Xml::label( wfMsg( 'group' ), 'group' ) . ' ' .
 199                         Xml::openElement('select',  array( 'name' => 'group', 'id' => 'group' ) ) .
 200                         Xml::option( wfMsg( 'group-all' ), '' );
 201                 foreach( $this->getAllGroups() as $group => $groupText )
 202                         $out .= Xml::option( $groupText, $group, $group == $this->requestedGroup );
 203                 $out .= Xml::closeElement( 'select' ) . '<br />';
 204                 $out .= Xml::checkLabel( wfMsg('listusers-editsonly'), 'editsOnly', 'editsOnly', $this->editsOnly );
 205                 $out .= '&#160;';
 206                 $out .= Xml::checkLabel( wfMsg('listusers-creationsort'), 'creationSort', 'creationSort', $this->creationSort );
 207                 $out .= '<br />';
 208
 209                 wfRunHooks( 'SpecialListusersHeaderForm', array( $this, &$out ) );
 210
 211                 # Submit button and form bottom
 212                 $out .= Html::hidden( 'limit', $this->mLimit );
 213                 $out .= Xml::submitButton( wfMsg( 'allpagessubmit' ) );
 214                 wfRunHooks( 'SpecialListusersHeader', array( $this, &$out ) );
 215                 $out .= Xml::closeElement( 'fieldset' ) .
 216                         Xml::closeElement( 'form' );
 217
 218                 return $out;
 219         }
 220
 221         /**
 222          * Get a list of all explicit groups
 223          * @return array
 224          */
 225         function getAllGroups() {
 226                 $result = array();
 227                 foreach( User::getAllGroups() as $group ) {
 228                         $result[$group] = User::getGroupName( $group );
 229                 }
 230                 asort( $result );
 231                 return $result;
 232         }
 233
 234         /**
 235          * Preserve group and username offset parameters when paging
 236          * @return array
 237          */
 238         function getDefaultQuery() {
 239                 $query = parent::getDefaultQuery();
 240                 if( $this->requestedGroup != '' )
 241                         $query['group'] = $this->requestedGroup;
 242                 if( $this->requestedUser != '' )
 243                         $query['username'] = $this->requestedUser;
 244                 wfRunHooks( 'SpecialListusersDefaultQuery', array( $this, &$query ) );
 245                 return $query;
 246         }
 247
 248         /**
 249          * Get a list of groups the specified user belongs to
 250          *
 251          * @param $uid Integer: user id
 252          * @return array
 253          */
 254         protected static function getGroups( $uid ) {
 255                 $user = User::newFromId( $uid );
 256                 $groups = array_diff( $user->getEffectiveGroups(), $user->getImplicitGroups() );
 257                 return $groups;
 258         }
 259
 260         /**
 261          * Format a link to a group description page
 262          *
 263          * @param $group String: group name
 264          * @return string
 265          */
 266         protected static function buildGroupLink( $group ) {
 267                 static $cache = array();
 268                 if( !isset( $cache[$group] ) )
 269                         $cache[$group] = User::makeGroupLinkHtml( $group, htmlspecialchars( User::getGroupMember( $group ) ) );
 270                 return $cache[$group];
 271         }
 272 }
 273
 274 /**
 275  * constructor
 276  * $par string (optional) A group to list users from
 277  */
 278 function wfSpecialListusers( $par = null ) {
 279         global $wgOut;
 280
 281         $up = new UsersPager($par);
 282
 283         # getBody() first to check, if empty
 284         $usersbody = $up->getBody();
 285         $s = Xml::openElement( 'div', array('class' => 'mw-spcontent') );
 286         $s .= $up->getPageHeader();
 287         if( $usersbody ) {
 288                 $s .=   $up->getNavigationBar();
 289                 $s .=   '<ul>' . $usersbody . '</ul>';
 290                 $s .=   $up->getNavigationBar() ;
 291         } else {
 292                 $s .=   '<p>' . wfMsgHTML('listusers-noresult') . '</p>';
 293         };
 294         $s .= Xml::closeElement( 'div' );
 295         $wgOut->addHTML( $s );
 296 }