includes/specials/pagers/UsersPager.php

   1 <?php
   2 /**
   3  * Copyright © 2004 Brion Vibber, lcrocker, Tim Starling,
   4  * Domas Mituzas, Antoine Musso, Jens Frank, Zhengzhu,
   5  * 2006 Rob Church <robchur@gmail.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @file
  23  * @ingroup Pager
  24  */
  25
  26 /**
  27  * This class is used to get a list of user. The ones with specials
  28  * rights (sysop, bureaucrat, developer) will have them displayed
  29  * next to their names.
  30  *
  31  * @ingroup Pager
  32  */
  33 class UsersPager extends AlphabeticPager {
  34
  35         /**
  36          * @var array A array with user ids as key and a array of groups as value
  37          */
  38         protected $userGroupCache;
  39
  40         /**
  41          * @param IContextSource $context
  42          * @param array $par (Default null)
  43          * @param bool $including Whether this page is being transcluded in
  44          * another page
  45          */
  46         function __construct( IContextSource $context = null, $par = null, $including = null ) {
  47                 if ( $context ) {
  48                         $this->setContext( $context );
  49                 }
  50
  51                 $request = $this->getRequest();
  52                 $par = ( $par !== null ) ? $par : '';
  53                 $parms = explode( '/', $par );
  54                 $symsForAll = [ '*', 'user' ];
  55
  56                 if ( $parms[0] != '' &&
  57                         ( in_array( $par, User::getAllGroups() ) || in_array( $par, $symsForAll ) )
  58                 ) {
  59                         $this->requestedGroup = $par;
  60                         $un = $request->getText( 'username' );
  61                 } elseif ( count( $parms ) == 2 ) {
  62                         $this->requestedGroup = $parms[0];
  63                         $un = $parms[1];
  64                 } else {
  65                         $this->requestedGroup = $request->getVal( 'group' );
  66                         $un = ( $par != '' ) ? $par : $request->getText( 'username' );
  67                 }
  68
  69                 if ( in_array( $this->requestedGroup, $symsForAll ) ) {
  70                         $this->requestedGroup = '';
  71                 }
  72                 $this->editsOnly = $request->getBool( 'editsOnly' );
  73                 $this->creationSort = $request->getBool( 'creationSort' );
  74                 $this->including = $including;
  75                 $this->mDefaultDirection = $request->getBool( 'desc' )
  76                         ? IndexPager::DIR_DESCENDING
  77                         : IndexPager::DIR_ASCENDING;
  78
  79                 $this->requestedUser = '';
  80
  81                 if ( $un != '' ) {
  82                         $username = Title::makeTitleSafe( NS_USER, $un );
  83
  84                         if ( !is_null( $username ) ) {
  85                                 $this->requestedUser = $username->getText();
  86                         }
  87                 }
  88
  89                 parent::__construct();
  90         }
  91
  92         /**
  93          * @return string
  94          */
  95         function getIndexField() {
  96                 return $this->creationSort ? 'user_id' : 'user_name';
  97         }
  98
  99         /**
 100          * @return array
 101          */
 102         function getQueryInfo() {
 103                 $dbr = wfGetDB( DB_REPLICA );
 104                 $conds = [];
 105
 106                 // Don't show hidden names
 107                 if ( !$this->getUser()->isAllowed( 'hideuser' ) ) {
 108                         $conds[] = 'ipb_deleted IS NULL OR ipb_deleted = 0';
 109                 }
 110
 111                 $options = [];
 112
 113                 if ( $this->requestedGroup != '' ) {
 114                         $conds['ug_group'] = $this->requestedGroup;
 115                         $conds[] = 'ug_expiry IS NULL OR ug_expiry >= ' . $dbr->addQuotes( $dbr->timestamp() );
 116                 }
 117
 118                 if ( $this->requestedUser != '' ) {
 119                         # Sorted either by account creation or name
 120                         if ( $this->creationSort ) {
 121                                 $conds[] = 'user_id >= ' . intval( User::idFromName( $this->requestedUser ) );
 122                         } else {
 123                                 $conds[] = 'user_name >= ' . $dbr->addQuotes( $this->requestedUser );
 124                         }
 125                 }
 126
 127                 if ( $this->editsOnly ) {
 128                         $conds[] = 'user_editcount > 0';
 129                 }
 130
 131                 $options['GROUP BY'] = $this->creationSort ? 'user_id' : 'user_name';
 132
 133                 $query = [
 134                         'tables' => [ 'user', 'user_groups', 'ipblocks' ],
 135                         'fields' => [
 136                                 'user_name' => $this->creationSort ? 'MAX(user_name)' : 'user_name',
 137                                 'user_id' => $this->creationSort ? 'user_id' : 'MAX(user_id)',
 138                                 'edits' => 'MAX(user_editcount)',
 139                                 'creation' => 'MIN(user_registration)',
 140                                 'ipb_deleted' => 'MAX(ipb_deleted)' // block/hide status
 141                         ],
 142                         'options' => $options,
 143                         'join_conds' => [
 144                                 'user_groups' => [ 'LEFT JOIN', 'user_id=ug_user' ],
 145                                 'ipblocks' => [
 146                                         'LEFT JOIN', [
 147                                                 'user_id=ipb_user',
 148                                                 'ipb_auto' => 0
 149                                         ]
 150                                 ],
 151                         ],
 152                         'conds' => $conds
 153                 ];
 154
 155                 Hooks::run( 'SpecialListusersQueryInfo', [ $this, &$query ] );
 156
 157                 return $query;
 158         }
 159
 160         /**
 161          * @param stdClass $row
 162          * @return string
 163          */
 164         function formatRow( $row ) {
 165                 if ( $row->user_id == 0 ) { # T18487
 166                         return '';
 167                 }
 168
 169                 $userName = $row->user_name;
 170
 171                 $ulinks = Linker::userLink( $row->user_id, $userName );
 172                 $ulinks .= Linker::userToolLinksRedContribs(
 173                         $row->user_id,
 174                         $userName,
 175                         (int)$row->edits
 176                 );
 177
 178                 $lang = $this->getLanguage();
 179
 180                 $groups = '';
 181                 $ugms = self::getGroupMemberships( intval( $row->user_id ), $this->userGroupCache );
 182
 183                 if ( !$this->including && count( $ugms ) > 0 ) {
 184                         $list = [];
 185                         foreach ( $ugms as $ugm ) {
 186                                 $list[] = $this->buildGroupLink( $ugm, $userName );
 187                         }
 188                         $groups = $lang->commaList( $list );
 189                 }
 190
 191                 $item = $lang->specialList( $ulinks, $groups );
 192
 193                 if ( $row->ipb_deleted ) {
 194                         $item = "<span class=\"deleted\">$item</span>";
 195                 }
 196
 197                 $edits = '';
 198                 if ( !$this->including && $this->getConfig()->get( 'Edititis' ) ) {
 199                         $count = $this->msg( 'usereditcount' )->numParams( $row->edits )->escaped();
 200                         $edits = $this->msg( 'word-separator' )->escaped() . $this->msg( 'brackets', $count )->escaped();
 201                 }
 202
 203                 $created = '';
 204                 # Some rows may be null
 205                 if ( !$this->including && $row->creation ) {
 206                         $user = $this->getUser();
 207                         $d = $lang->userDate( $row->creation, $user );
 208                         $t = $lang->userTime( $row->creation, $user );
 209                         $created = $this->msg( 'usercreated', $d, $t, $row->user_name )->escaped();
 210                         $created = ' ' . $this->msg( 'parentheses' )->rawParams( $created )->escaped();
 211                 }
 212                 $blocked = !is_null( $row->ipb_deleted ) ?
 213                         ' ' . $this->msg( 'listusers-blocked', $userName )->escaped() :
 214                         '';
 215
 216                 Hooks::run( 'SpecialListusersFormatRow', [ &$item, $row ] );
 217
 218                 return Html::rawElement( 'li', [], "{$item}{$edits}{$created}{$blocked}" );
 219         }
 220
 221         function doBatchLookups() {
 222                 $batch = new LinkBatch();
 223                 $userIds = [];
 224                 # Give some pointers to make user links
 225                 foreach ( $this->mResult as $row ) {
 226                         $batch->add( NS_USER, $row->user_name );
 227                         $batch->add( NS_USER_TALK, $row->user_name );
 228                         $userIds[] = $row->user_id;
 229                 }
 230
 231                 // Lookup groups for all the users
 232                 $dbr = wfGetDB( DB_REPLICA );
 233                 $groupRes = $dbr->select(
 234                         'user_groups',
 235                         UserGroupMembership::selectFields(),
 236                         [ 'ug_user' => $userIds ],
 237                         __METHOD__
 238                 );
 239                 $cache = [];
 240                 $groups = [];
 241                 foreach ( $groupRes as $row ) {
 242                         $ugm = UserGroupMembership::newFromRow( $row );
 243                         if ( !$ugm->isExpired() ) {
 244                                 $cache[$row->ug_user][$row->ug_group] = $ugm;
 245                                 $groups[$row->ug_group] = true;
 246                         }
 247                 }
 248
 249                 // Give extensions a chance to add things like global user group data
 250                 // into the cache array to ensure proper output later on
 251                 Hooks::run( 'UsersPagerDoBatchLookups', [ $dbr, $userIds, &$cache, &$groups ] );
 252
 253                 $this->userGroupCache = $cache;
 254
 255                 // Add page of groups to link batch
 256                 foreach ( $groups as $group => $unused ) {
 257                         $groupPage = UserGroupMembership::getGroupPage( $group );
 258                         if ( $groupPage ) {
 259                                 $batch->addObj( $groupPage );
 260                         }
 261                 }
 262
 263                 $batch->execute();
 264                 $this->mResult->rewind();
 265         }
 266
 267         /**
 268          * @return string
 269          */
 270         function getPageHeader() {
 271                 list( $self ) = explode( '/', $this->getTitle()->getPrefixedDBkey() );
 272
 273                 $this->getOutput()->addModules( 'mediawiki.userSuggest' );
 274
 275                 # Form tag
 276                 $out = Xml::openElement(
 277                                 'form',
 278                                 [ 'method' => 'get', 'action' => wfScript(), 'id' => 'mw-listusers-form' ]
 279                         ) .
 280                         Xml::fieldset( $this->msg( 'listusers' )->text() ) .
 281                         Html::hidden( 'title', $self );
 282
 283                 # Username field (with autocompletion support)
 284                 $out .= Xml::label( $this->msg( 'listusersfrom' )->text(), 'offset' ) . ' ' .
 285                         Html::input(
 286                                 'username',
 287                                 $this->requestedUser,
 288                                 'text',
 289                                 [
 290                                         'class' => 'mw-autocomplete-user',
 291                                         'id' => 'offset',
 292                                         'size' => 20,
 293                                         'autofocus' => $this->requestedUser === ''
 294                                 ]
 295                         ) . ' ';
 296
 297                 # Group drop-down list
 298                 $sel = new XmlSelect( 'group', 'group', $this->requestedGroup );
 299                 $sel->addOption( $this->msg( 'group-all' )->text(), '' );
 300                 foreach ( $this->getAllGroups() as $group => $groupText ) {
 301                         $sel->addOption( $groupText, $group );
 302                 }
 303
 304                 $out .= Xml::label( $this->msg( 'group' )->text(), 'group' ) . ' ';
 305                 $out .= $sel->getHTML() . '<br />';
 306                 $out .= Xml::checkLabel(
 307                         $this->msg( 'listusers-editsonly' )->text(),
 308                         'editsOnly',
 309                         'editsOnly',
 310                         $this->editsOnly
 311                 );
 312                 $out .= '&#160;';
 313                 $out .= Xml::checkLabel(
 314                         $this->msg( 'listusers-creationsort' )->text(),
 315                         'creationSort',
 316                         'creationSort',
 317                         $this->creationSort
 318                 );
 319                 $out .= '&#160;';
 320                 $out .= Xml::checkLabel(
 321                         $this->msg( 'listusers-desc' )->text(),
 322                         'desc',
 323                         'desc',
 324                         $this->mDefaultDirection
 325                 );
 326                 $out .= '<br />';
 327
 328                 Hooks::run( 'SpecialListusersHeaderForm', [ $this, &$out ] );
 329
 330                 # Submit button and form bottom
 331                 $out .= Html::hidden( 'limit', $this->mLimit );
 332                 $out .= Xml::submitButton( $this->msg( 'listusers-submit' )->text() );
 333                 Hooks::run( 'SpecialListusersHeader', [ $this, &$out ] );
 334                 $out .= Xml::closeElement( 'fieldset' ) .
 335                         Xml::closeElement( 'form' );
 336
 337                 return $out;
 338         }
 339
 340         /**
 341          * Get a list of all explicit groups
 342          * @return array
 343          */
 344         function getAllGroups() {
 345                 $result = [];
 346                 foreach ( User::getAllGroups() as $group ) {
 347                         $result[$group] = UserGroupMembership::getGroupName( $group );
 348                 }
 349                 asort( $result );
 350
 351                 return $result;
 352         }
 353
 354         /**
 355          * Preserve group and username offset parameters when paging
 356          * @return array
 357          */
 358         function getDefaultQuery() {
 359                 $query = parent::getDefaultQuery();
 360                 if ( $this->requestedGroup != '' ) {
 361                         $query['group'] = $this->requestedGroup;
 362                 }
 363                 if ( $this->requestedUser != '' ) {
 364                         $query['username'] = $this->requestedUser;
 365                 }
 366                 Hooks::run( 'SpecialListusersDefaultQuery', [ $this, &$query ] );
 367
 368                 return $query;
 369         }
 370
 371         /**
 372          * Get an associative array containing groups the specified user belongs to,
 373          * and the relevant UserGroupMembership objects
 374          *
 375          * @param int $uid User id
 376          * @param array|null $cache
 377          * @return array (group name => UserGroupMembership object)
 378          */
 379         protected static function getGroupMemberships( $uid, $cache = null ) {
 380                 if ( $cache === null ) {
 381                         $user = User::newFromId( $uid );
 382                         return $user->getGroupMemberships();
 383                 } else {
 384                         return isset( $cache[$uid] ) ? $cache[$uid] : [];
 385                 }
 386         }
 387
 388         /**
 389          * Format a link to a group description page
 390          *
 391          * @param string|UserGroupMembership $group Group name or UserGroupMembership object
 392          * @param string $username Username
 393          * @return string
 394          */
 395         protected function buildGroupLink( $group, $username ) {
 396                 return UserGroupMembership::getLink( $group, $this->getContext(), 'html', $username );
 397         }
 398 }