includes/specials/SpecialAllMessages.php

   1 <?php
   2 /**
   3  * Implements Special:Allmessages
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * Use this special page to get a list of the MediaWiki system messages.
  26  *
  27  * @file
  28  * @ingroup SpecialPage
  29  */
  30 class SpecialAllMessages extends SpecialPage {
  31         /**
  32          * @var AllMessagesTablePager
  33          */
  34         protected $table;
  35
  36         /**
  37          * Constructor
  38          */
  39         public function __construct() {
  40                 parent::__construct( 'Allmessages' );
  41         }
  42
  43         /**
  44          * Show the special page
  45          *
  46          * @param string $par Parameter passed to the page or null
  47          */
  48         public function execute( $par ) {
  49                 $request = $this->getRequest();
  50                 $out = $this->getOutput();
  51
  52                 $this->setHeaders();
  53
  54                 if ( !$this->getConfig()->get( 'UseDatabaseMessages' ) ) {
  55                         $out->addWikiMsg( 'allmessagesnotsupportedDB' );
  56
  57                         return;
  58                 }
  59
  60                 $this->outputHeader( 'allmessagestext' );
  61                 $out->addModuleStyles( 'mediawiki.special' );
  62                 $this->addHelpLink( 'Help:System message' );
  63
  64                 $this->table = new AllMessagesTablePager(
  65                         $this,
  66                         array(),
  67                         wfGetLangObj( $request->getVal( 'lang', $par ) )
  68                 );
  69
  70                 $this->langcode = $this->table->lang->getCode();
  71
  72                 $out->addHTML( $this->table->buildForm() );
  73                 $out->addParserOutputContent( $this->table->getFullOutput() );
  74         }
  75
  76         protected function getGroupName() {
  77                 return 'wiki';
  78         }
  79 }
  80
  81 /**
  82  * Use TablePager for prettified output. We have to pretend that we're
  83  * getting data from a table when in fact not all of it comes from the database.
  84  */
  85 class AllMessagesTablePager extends TablePager {
  86         protected $filter, $prefix, $langcode, $displayPrefix;
  87
  88         public $mLimitsShown;
  89
  90         /**
  91          * @var Language
  92          */
  93         public $lang;
  94
  95         /**
  96          * @var null|bool
  97          */
  98         public $custom;
  99
 100         function __construct( $page, $conds, $langObj = null ) {
 101                 parent::__construct( $page->getContext() );
 102                 $this->mIndexField = 'am_title';
 103                 $this->mPage = $page;
 104                 $this->mConds = $conds;
 105                 // FIXME: Why does this need to be set to DIR_DESCENDING to produce ascending ordering?
 106                 $this->mDefaultDirection = IndexPager::DIR_DESCENDING;
 107                 $this->mLimitsShown = array( 20, 50, 100, 250, 500, 5000 );
 108
 109                 global $wgContLang;
 110
 111                 $this->talk = $this->msg( 'talkpagelinktext' )->escaped();
 112
 113                 $this->lang = ( $langObj ? $langObj : $wgContLang );
 114                 $this->langcode = $this->lang->getCode();
 115                 $this->foreign = $this->langcode !== $wgContLang->getCode();
 116
 117                 $request = $this->getRequest();
 118
 119                 $this->filter = $request->getVal( 'filter', 'all' );
 120                 if ( $this->filter === 'all' ) {
 121                         $this->custom = null; // So won't match in either case
 122                 } else {
 123                         $this->custom = ( $this->filter === 'unmodified' );
 124                 }
 125
 126                 $prefix = $this->getLanguage()->ucfirst( $request->getVal( 'prefix', '' ) );
 127                 $prefix = $prefix !== '' ?
 128                         Title::makeTitleSafe( NS_MEDIAWIKI, $request->getVal( 'prefix', null ) ) :
 129                         null;
 130
 131                 if ( $prefix !== null ) {
 132                         $this->displayPrefix = $prefix->getDBkey();
 133                         $this->prefix = '/^' . preg_quote( $this->displayPrefix, '/' ) . '/i';
 134                 } else {
 135                         $this->displayPrefix = false;
 136                         $this->prefix = false;
 137                 }
 138
 139                 // The suffix that may be needed for message names if we're in a
 140                 // different language (eg [[MediaWiki:Foo/fr]]: $suffix = '/fr'
 141                 if ( $this->foreign ) {
 142                         $this->suffix = '/' . $this->langcode;
 143                 } else {
 144                         $this->suffix = '';
 145                 }
 146         }
 147
 148         function buildForm() {
 149                 $attrs = array( 'id' => 'mw-allmessages-form-lang', 'name' => 'lang' );
 150                 $msg = wfMessage( 'allmessages-language' );
 151                 $langSelect = Xml::languageSelector( $this->langcode, false, null, $attrs, $msg );
 152
 153                 $out = Xml::openElement( 'form', array(
 154                                 'method' => 'get',
 155                                 'action' => $this->getConfig()->get( 'Script' ),
 156                                 'id' => 'mw-allmessages-form'
 157                         ) ) .
 158                         Xml::fieldset( $this->msg( 'allmessages-filter-legend' )->text() ) .
 159                         Html::hidden( 'title', $this->getTitle()->getPrefixedText() ) .
 160                         Xml::openElement( 'table', array( 'class' => 'mw-allmessages-table' ) ) . "\n" .
 161                         '<tr>
 162                                 <td class="mw-label">' .
 163                         Xml::label( $this->msg( 'allmessages-prefix' )->text(), 'mw-allmessages-form-prefix' ) .
 164                         "</td>\n
 165                         <td class=\"mw-input\">" .
 166                         Xml::input(
 167                                 'prefix',
 168                                 20,
 169                                 str_replace( '_', ' ', $this->displayPrefix ),
 170                                 array( 'id' => 'mw-allmessages-form-prefix' )
 171                         ) .
 172                         "</td>\n
 173                         </tr>
 174                         <tr>\n
 175                         <td class='mw-label'>" .
 176                         $this->msg( 'allmessages-filter' )->escaped() .
 177                         "</td>\n
 178                                 <td class='mw-input'>" .
 179                         Xml::radioLabel( $this->msg( 'allmessages-filter-unmodified' )->text(),
 180                                 'filter',
 181                                 'unmodified',
 182                                 'mw-allmessages-form-filter-unmodified',
 183                                 ( $this->filter === 'unmodified' )
 184                         ) .
 185                         Xml::radioLabel( $this->msg( 'allmessages-filter-all' )->text(),
 186                                 'filter',
 187                                 'all',
 188                                 'mw-allmessages-form-filter-all',
 189                                 ( $this->filter === 'all' )
 190                         ) .
 191                         Xml::radioLabel( $this->msg( 'allmessages-filter-modified' )->text(),
 192                                 'filter',
 193                                 'modified',
 194                                 'mw-allmessages-form-filter-modified',
 195                                 ( $this->filter === 'modified' )
 196                         ) .
 197                         "</td>\n
 198                         </tr>
 199                         <tr>\n
 200                                 <td class=\"mw-label\">" . $langSelect[0] . "</td>\n
 201                                 <td class=\"mw-input\">" . $langSelect[1] . "</td>\n
 202                         </tr>" .
 203
 204                         '<tr>
 205                                 <td class="mw-label">' .
 206                         Xml::label( $this->msg( 'table_pager_limit_label' )->text(), 'mw-table_pager_limit_label' ) .
 207                         '</td>
 208                         <td class="mw-input">' .
 209                         $this->getLimitSelect() .
 210                         '</td>
 211                         <tr>
 212                                 <td></td>
 213                                 <td>' .
 214                         Xml::submitButton( $this->msg( 'allmessages-filter-submit' )->text() ) .
 215                         "</td>\n
 216                         </tr>" .
 217
 218                         Xml::closeElement( 'table' ) .
 219                         $this->getHiddenFields( array( 'title', 'prefix', 'filter', 'lang', 'limit' ) ) .
 220                         Xml::closeElement( 'fieldset' ) .
 221                         Xml::closeElement( 'form' );
 222
 223                 return $out;
 224         }
 225
 226         function getAllMessages( $descending ) {
 227                 $messageNames = Language::getLocalisationCache()->getSubitemList( 'en', 'messages' );
 228
 229                 // Normalise message names so they look like page titles and sort correctly - T86139
 230                 $messageNames = array_map( array( $this->lang, 'ucfirst' ), $messageNames );
 231
 232                 if ( $descending ) {
 233                         rsort( $messageNames );
 234                 } else {
 235                         asort( $messageNames );
 236                 }
 237
 238                 return $messageNames;
 239         }
 240
 241         /**
 242          * Determine which of the MediaWiki and MediaWiki_talk namespace pages exist.
 243          * Returns array( 'pages' => ..., 'talks' => ... ), where the subarrays have
 244          * an entry for each existing page, with the key being the message name and
 245          * value arbitrary.
 246          *
 247          * @param array $messageNames
 248          * @param string $langcode What language code
 249          * @param bool $foreign Whether the $langcode is not the content language
 250          * @return array A 'pages' and 'talks' array with the keys of existing pages
 251          */
 252         public static function getCustomisedStatuses( $messageNames, $langcode = 'en', $foreign = false ) {
 253                 // FIXME: This function should be moved to Language:: or something.
 254
 255                 $dbr = wfGetDB( DB_SLAVE );
 256                 $res = $dbr->select( 'page',
 257                         array( 'page_namespace', 'page_title' ),
 258                         array( 'page_namespace' => array( NS_MEDIAWIKI, NS_MEDIAWIKI_TALK ) ),
 259                         __METHOD__,
 260                         array( 'USE INDEX' => 'name_title' )
 261                 );
 262                 $xNames = array_flip( $messageNames );
 263
 264                 $pageFlags = $talkFlags = array();
 265
 266                 foreach ( $res as $s ) {
 267                         $exists = false;
 268
 269                         if ( $foreign ) {
 270                                 $titleParts = explode( '/', $s->page_title );
 271                                 if ( count( $titleParts ) === 2 &&
 272                                         $langcode === $titleParts[1] &&
 273                                         isset( $xNames[$titleParts[0]] )
 274                                 ) {
 275                                         $exists = $titleParts[0];
 276                                 }
 277                         } elseif ( isset( $xNames[$s->page_title] ) ) {
 278                                 $exists = $s->page_title;
 279                         }
 280
 281                         $title = Title::newFromRow( $s );
 282                         if ( $exists && $title->inNamespace( NS_MEDIAWIKI ) ) {
 283                                 $pageFlags[$exists] = true;
 284                         } elseif ( $exists && $title->inNamespace( NS_MEDIAWIKI_TALK ) ) {
 285                                 $talkFlags[$exists] = true;
 286                         }
 287                 }
 288
 289                 return array( 'pages' => $pageFlags, 'talks' => $talkFlags );
 290         }
 291
 292         /**
 293          *  This function normally does a database query to get the results; we need
 294          * to make a pretend result using a FakeResultWrapper.
 295          * @param string $offset
 296          * @param int $limit
 297          * @param bool $descending
 298          * @return FakeResultWrapper
 299          */
 300         function reallyDoQuery( $offset, $limit, $descending ) {
 301                 $result = new FakeResultWrapper( array() );
 302
 303                 $messageNames = $this->getAllMessages( $descending );
 304                 $statuses = self::getCustomisedStatuses( $messageNames, $this->langcode, $this->foreign );
 305
 306                 $count = 0;
 307                 foreach ( $messageNames as $key ) {
 308                         $customised = isset( $statuses['pages'][$key] );
 309                         if ( $customised !== $this->custom &&
 310                                 ( $descending && ( $key < $offset || !$offset ) || !$descending && $key > $offset ) &&
 311                                 ( ( $this->prefix && preg_match( $this->prefix, $key ) ) || $this->prefix === false )
 312                         ) {
 313                                 $actual = wfMessage( $key )->inLanguage( $this->langcode )->plain();
 314                                 $default = wfMessage( $key )->inLanguage( $this->langcode )->useDatabase( false )->plain();
 315                                 $result->result[] = array(
 316                                         'am_title' => $key,
 317                                         'am_actual' => $actual,
 318                                         'am_default' => $default,
 319                                         'am_customised' => $customised,
 320                                         'am_talk_exists' => isset( $statuses['talks'][$key] )
 321                                 );
 322                                 $count++;
 323                         }
 324
 325                         if ( $count === $limit ) {
 326                                 break;
 327                         }
 328                 }
 329
 330                 return $result;
 331         }
 332
 333         function getStartBody() {
 334                 $tableClass = $this->getTableClass();
 335                 return Xml::openElement( 'table', array(
 336                                 'class' => "mw-datatable $tableClass",
 337                                 'id' => 'mw-allmessagestable'
 338                         ) ) .
 339                         "\n" .
 340                         "<thead><tr>
 341                                 <th rowspan=\"2\">" .
 342                         $this->msg( 'allmessagesname' )->escaped() . "
 343                                 </th>
 344                                 <th>" .
 345                         $this->msg( 'allmessagesdefault' )->escaped() .
 346                         "</th>
 347                         </tr>\n
 348                         <tr>
 349                                 <th>" .
 350                         $this->msg( 'allmessagescurrent' )->escaped() .
 351                         "</th>
 352                         </tr></thead><tbody>\n";
 353         }
 354
 355         function formatValue( $field, $value ) {
 356                 switch ( $field ) {
 357                         case 'am_title' :
 358                                 $title = Title::makeTitle( NS_MEDIAWIKI, $value . $this->suffix );
 359                                 $talk = Title::makeTitle( NS_MEDIAWIKI_TALK, $value . $this->suffix );
 360                                 $translation = Linker::makeExternalLink(
 361                                         'https://translatewiki.net/w/i.php?' . wfArrayToCgi( array(
 362                                                 'title' => 'Special:SearchTranslations',
 363                                                 'group' => 'mediawiki',
 364                                                 'grouppath' => 'mediawiki',
 365                                                 'query' => 'language:' . $this->getLanguage()->getCode() . '^25 ' .
 366                                                         'messageid:"MediaWiki:' . $value . '"^10 "' .
 367                                                         $this->msg( $value )->inLanguage( 'en' )->plain() . '"'
 368                                         ) ),
 369                                         $this->msg( 'allmessages-filter-translate' )->text()
 370                                 );
 371
 372                                 if ( $this->mCurrentRow->am_customised ) {
 373                                         $title = Linker::linkKnown( $title, $this->getLanguage()->lcfirst( $value ) );
 374                                 } else {
 375                                         $title = Linker::link(
 376                                                 $title,
 377                                                 $this->getLanguage()->lcfirst( $value ),
 378                                                 array(),
 379                                                 array(),
 380                                                 array( 'broken' )
 381                                         );
 382                                 }
 383                                 if ( $this->mCurrentRow->am_talk_exists ) {
 384                                         $talk = Linker::linkKnown( $talk, $this->talk );
 385                                 } else {
 386                                         $talk = Linker::link(
 387                                                 $talk,
 388                                                 $this->talk,
 389                                                 array(),
 390                                                 array(),
 391                                                 array( 'broken' )
 392                                         );
 393                                 }
 394
 395                                 return $title . ' ' .
 396                                         $this->msg( 'parentheses' )->rawParams( $talk )->escaped() .
 397                                         ' ' .
 398                                         $this->msg( 'parentheses' )->rawParams( $translation )->escaped();
 399
 400                         case 'am_default' :
 401                         case 'am_actual' :
 402                                 return Sanitizer::escapeHtmlAllowEntities( $value, ENT_QUOTES );
 403                 }
 404
 405                 return '';
 406         }
 407
 408         function formatRow( $row ) {
 409                 // Do all the normal stuff
 410                 $s = parent::formatRow( $row );
 411
 412                 // But if there's a customised message, add that too.
 413                 if ( $row->am_customised ) {
 414                         $s .= Xml::openElement( 'tr', $this->getRowAttrs( $row, true ) );
 415                         $formatted = strval( $this->formatValue( 'am_actual', $row->am_actual ) );
 416
 417                         if ( $formatted === '' ) {
 418                                 $formatted = '&#160;';
 419                         }
 420
 421                         $s .= Xml::tags( 'td', $this->getCellAttrs( 'am_actual', $row->am_actual ), $formatted )
 422                                 . "</tr>\n";
 423                 }
 424
 425                 return $s;
 426         }
 427
 428         function getRowAttrs( $row, $isSecond = false ) {
 429                 $arr = array();
 430
 431                 if ( $row->am_customised ) {
 432                         $arr['class'] = 'allmessages-customised';
 433                 }
 434
 435                 if ( !$isSecond ) {
 436                         $arr['id'] = Sanitizer::escapeId( 'msg_' . $this->getLanguage()->lcfirst( $row->am_title ) );
 437                 }
 438
 439                 return $arr;
 440         }
 441
 442         function getCellAttrs( $field, $value ) {
 443                 if ( $this->mCurrentRow->am_customised && $field === 'am_title' ) {
 444                         return array( 'rowspan' => '2', 'class' => $field );
 445                 } elseif ( $field === 'am_title' ) {
 446                         return array( 'class' => $field );
 447                 } else {
 448                         return array( 'lang' => $this->langcode, 'dir' => $this->lang->getDir(), 'class' => $field );
 449                 }
 450         }
 451
 452         // This is not actually used, as getStartBody is overridden above
 453         function getFieldNames() {
 454                 return array(
 455                         'am_title' => $this->msg( 'allmessagesname' )->text(),
 456                         'am_default' => $this->msg( 'allmessagesdefault' )->text()
 457                 );
 458         }
 459
 460         function getTitle() {
 461                 return SpecialPage::getTitleFor( 'Allmessages', false );
 462         }
 463
 464         function isFieldSortable( $x ) {
 465                 return false;
 466         }
 467
 468         function getDefaultSort() {
 469                 return '';
 470         }
 471
 472         function getQueryInfo() {
 473                 return '';
 474         }
 475 }