includes/specials/SpecialListusers.php

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