includes/api/ApiParse.php

   1 <?php
   2 /**
   3  * Created on Dec 01, 2007
   4  *
   5  * Copyright © 2007 Yuri Astrakhan <Firstname><Lastname>@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  */
  24
  25 /**
  26  * @ingroup API
  27  */
  28 class ApiParse extends ApiBase {
  29         private $section, $text, $pstText = null;
  30
  31         public function __construct( $main, $action ) {
  32                 parent::__construct( $main, $action );
  33         }
  34
  35         public function execute() {
  36                 // The data is hot but user-dependent, like page views, so we set vary cookies
  37                 $this->getMain()->setCacheMode( 'anon-public-user-private' );
  38
  39                 // Get parameters
  40                 $params = $this->extractRequestParams();
  41                 $text = $params['text'];
  42                 $title = $params['title'];
  43                 $page = $params['page'];
  44                 $pageid = $params['pageid'];
  45                 $oldid = $params['oldid'];
  46
  47                 if ( !is_null( $page ) && ( !is_null( $text ) || $title != 'API' ) ) {
  48                         $this->dieUsage( 'The page parameter cannot be used together with the text and title parameters', 'params' );
  49                 }
  50
  51                 $prop = array_flip( $params['prop'] );
  52
  53                 if ( isset( $params['section'] ) ) {
  54                         $this->section = $params['section'];
  55                 } else {
  56                         $this->section = false;
  57                 }
  58
  59                 // The parser needs $wgTitle to be set, apparently the
  60                 // $title parameter in Parser::parse isn't enough *sigh*
  61                 // TODO: Does this still need $wgTitle?
  62                 global $wgParser, $wgTitle, $wgLang;
  63
  64                 // Currently unnecessary, code to act as a safeguard against any change in current behaviour of uselang breaks
  65                 $oldLang = null;
  66                 if ( isset( $params['uselang'] ) && $params['uselang'] != $wgLang->getCode() ) {
  67                         $oldLang = $wgLang; // Backup wgLang
  68                         $wgLang = Language::factory( $params['uselang'] );
  69                 }
  70
  71                 $popts = ParserOptions::newFromContext( $this->getContext() );
  72                 $popts->setTidy( true );
  73                 $popts->enableLimitReport( !$params['disablepp'] );
  74
  75                 $redirValues = null;
  76
  77                 // Return result
  78                 $result = $this->getResult();
  79
  80                 if ( !is_null( $oldid ) || !is_null( $pageid ) || !is_null( $page ) ) {
  81                         if ( !is_null( $oldid ) ) {
  82                                 // Don't use the parser cache
  83                                 $rev = Revision::newFromID( $oldid );
  84                                 if ( !$rev ) {
  85                                         $this->dieUsage( "There is no revision ID $oldid", 'missingrev' );
  86                                 }
  87                                 if ( !$rev->userCan( Revision::DELETED_TEXT, $this->getUser() ) ) {
  88                                         $this->dieUsage( "You don't have permission to view deleted revisions", 'permissiondenied' );
  89                                 }
  90
  91                                 $titleObj = $rev->getTitle();
  92
  93                                 $wgTitle = $titleObj;
  94
  95                                 // If for some reason the "oldid" is actually the current revision, it may be cached
  96                                 if ( $titleObj->getLatestRevID() === intval( $oldid ) )  {
  97                                         // May get from/save to parser cache
  98                                         $p_result = $this->getParsedSectionOrText( $titleObj, $popts, $pageid,
  99                                                  isset( $prop['wikitext'] ) ) ;
 100                                 } else { // This is an old revision, so get the text differently
 101                                         $this->text = $rev->getText( Revision::FOR_THIS_USER, $this->getUser() );
 102
 103                                         if ( $this->section !== false ) {
 104                                                 $this->text = $this->getSectionText( $this->text, 'r' . $rev->getId() );
 105                                         }
 106
 107                                         // Should we save old revision parses to the parser cache?
 108                                         $p_result = $wgParser->parse( $this->text, $titleObj, $popts );
 109                                 }
 110                         } else { // Not $oldid, but $pageid or $page
 111                                 if ( $params['redirects'] ) {
 112                                         $reqParams = array(
 113                                                 'action' => 'query',
 114                                                 'redirects' => '',
 115                                         );
 116                                         if ( !is_null ( $pageid ) ) {
 117                                                 $reqParams['pageids'] = $pageid;
 118                                         } else { // $page
 119                                                 $reqParams['titles'] = $page;
 120                                         }
 121                                         $req = new FauxRequest( $reqParams );
 122                                         $main = new ApiMain( $req );
 123                                         $main->execute();
 124                                         $data = $main->getResultData();
 125                                         $redirValues = isset( $data['query']['redirects'] )
 126                                                 ? $data['query']['redirects']
 127                                                 : array();
 128                                         $to = $page;
 129                                         foreach ( (array)$redirValues as $r ) {
 130                                                 $to = $r['to'];
 131                                         }
 132                                         $titleObj = Title::newFromText( $to );
 133                                 } else {
 134                                         if ( !is_null ( $pageid ) ) {
 135                                                 $reqParams['pageids'] = $pageid;
 136                                                 $titleObj = Title::newFromID( $pageid );
 137                                         } else { // $page
 138                                                 $to = $page;
 139                                                 $titleObj = Title::newFromText( $to );
 140                                         }
 141                                 }
 142                                 if ( !is_null ( $pageid ) ) {
 143                                         if ( !$titleObj ) {
 144                                                 // Still throw nosuchpageid error if pageid was provided
 145                                                 $this->dieUsageMsg( array( 'nosuchpageid', $pageid ) );
 146                                         }
 147                                 } elseif ( !$titleObj || !$titleObj->exists() ) {
 148                                         $this->dieUsage( "The page you specified doesn't exist", 'missingtitle' );
 149                                 }
 150                                 $wgTitle = $titleObj;
 151
 152                                 if ( isset( $prop['revid'] ) ) {
 153                                         $oldid = $titleObj->getLatestRevID();
 154                                 }
 155
 156                                 // Potentially cached
 157                                 $p_result = $this->getParsedSectionOrText( $titleObj, $popts, $pageid,
 158                                          isset( $prop['wikitext'] ) ) ;
 159                         }
 160                 } else { // Not $oldid, $pageid, $page. Hence based on $text
 161
 162                         if ( is_null( $text ) ) {
 163                                 $this->dieUsage( 'The text parameter should be passed with the title parameter. Should you be using the "page" parameter instead?', 'params' );
 164                         }
 165                         $this->text = $text;
 166                         $titleObj = Title::newFromText( $title );
 167                         if ( !$titleObj ) {
 168                                 $this->dieUsageMsg( array( 'invalidtitle', $title ) );
 169                         }
 170                         $wgTitle = $titleObj;
 171
 172                         if ( $this->section !== false ) {
 173                                 $this->text = $this->getSectionText( $this->text, $titleObj->getText() );
 174                         }
 175
 176                         if ( $params['pst'] || $params['onlypst'] ) {
 177                                 $this->pstText = $wgParser->preSaveTransform( $this->text, $titleObj, $this->getUser(), $popts );
 178                         }
 179                         if ( $params['onlypst'] ) {
 180                                 // Build a result and bail out
 181                                 $result_array = array();
 182                                 $result_array['text'] = array();
 183                                 $result->setContent( $result_array['text'], $this->pstText );
 184                                 if ( isset( $prop['wikitext'] ) ) {
 185                                         $result_array['wikitext'] = array();
 186                                         $result->setContent( $result_array['wikitext'], $this->text );
 187                                 }
 188                                 $result->addValue( null, $this->getModuleName(), $result_array );
 189                                 return;
 190                         }
 191                         // Not cached (save or load)
 192                         $p_result = $wgParser->parse( $params['pst'] ? $this->pstText : $this->text, $titleObj, $popts );
 193                 }
 194
 195                 $result_array = array();
 196
 197                 $result_array['title'] = $titleObj->getPrefixedText();
 198
 199                 if ( !is_null( $oldid ) ) {
 200                         $result_array['revid'] = intval( $oldid );
 201                 }
 202
 203                 if ( $params['redirects'] && !is_null( $redirValues ) ) {
 204                         $result_array['redirects'] = $redirValues;
 205                 }
 206
 207                 if ( isset( $prop['text'] ) ) {
 208                         $result_array['text'] = array();
 209                         $result->setContent( $result_array['text'], $p_result->getText() );
 210                 }
 211
 212                 if ( !is_null( $params['summary'] ) ) {
 213                         $result_array['parsedsummary'] = array();
 214                         $result->setContent( $result_array['parsedsummary'], Linker::formatComment( $params['summary'], $titleObj ) );
 215                 }
 216
 217                 if ( isset( $prop['langlinks'] ) ) {
 218                         $result_array['langlinks'] = $this->formatLangLinks( $p_result->getLanguageLinks() );
 219                 }
 220                 if ( isset( $prop['languageshtml'] ) ) {
 221                         $languagesHtml = $this->languagesHtml( $p_result->getLanguageLinks() );
 222                         $result_array['languageshtml'] = array();
 223                         $result->setContent( $result_array['languageshtml'], $languagesHtml );
 224                 }
 225                 if ( isset( $prop['categories'] ) ) {
 226                         $result_array['categories'] = $this->formatCategoryLinks( $p_result->getCategories() );
 227                 }
 228                 if ( isset( $prop['categorieshtml'] ) ) {
 229                         $categoriesHtml = $this->categoriesHtml( $p_result->getCategories() );
 230                         $result_array['categorieshtml'] = array();
 231                         $result->setContent( $result_array['categorieshtml'], $categoriesHtml );
 232                 }
 233                 if ( isset( $prop['links'] ) ) {
 234                         $result_array['links'] = $this->formatLinks( $p_result->getLinks() );
 235                 }
 236                 if ( isset( $prop['templates'] ) ) {
 237                         $result_array['templates'] = $this->formatLinks( $p_result->getTemplates() );
 238                 }
 239                 if ( isset( $prop['images'] ) ) {
 240                         $result_array['images'] = array_keys( $p_result->getImages() );
 241                 }
 242                 if ( isset( $prop['externallinks'] ) ) {
 243                         $result_array['externallinks'] = array_keys( $p_result->getExternalLinks() );
 244                 }
 245                 if ( isset( $prop['sections'] ) ) {
 246                         $result_array['sections'] = $p_result->getSections();
 247                 }
 248
 249                 if ( isset( $prop['displaytitle'] ) ) {
 250                         $result_array['displaytitle'] = $p_result->getDisplayTitle() ?
 251                                                         $p_result->getDisplayTitle() :
 252                                                         $titleObj->getPrefixedText();
 253                 }
 254
 255                 if ( isset( $prop['headitems'] ) || isset( $prop['headhtml'] ) ) {
 256                         $context = $this->getContext();
 257                         $context->setTitle( $titleObj );
 258                         $context->getOutput()->addParserOutputNoText( $p_result );
 259
 260                         if ( isset( $prop['headitems'] ) ) {
 261                                 $headItems = $this->formatHeadItems( $p_result->getHeadItems() );
 262
 263                                 $css = $this->formatCss( $context->getOutput()->buildCssLinksArray() );
 264
 265                                 $scripts = array( $context->getOutput()->getHeadScripts() );
 266
 267                                 $result_array['headitems'] = array_merge( $headItems, $css, $scripts );
 268                         }
 269
 270                         if ( isset( $prop['headhtml'] ) ) {
 271                                 $result_array['headhtml'] = array();
 272                                 $result->setContent( $result_array['headhtml'], $context->getOutput()->headElement( $context->getSkin() ) );
 273                         }
 274                 }
 275
 276                 if ( isset( $prop['iwlinks'] ) ) {
 277                         $result_array['iwlinks'] = $this->formatIWLinks( $p_result->getInterwikiLinks() );
 278                 }
 279
 280                 if ( isset( $prop['wikitext'] ) ) {
 281                         $result_array['wikitext'] = array();
 282                         $result->setContent( $result_array['wikitext'], $this->text );
 283                         if ( !is_null( $this->pstText ) ) {
 284                                 $result_array['psttext'] = array();
 285                                 $result->setContent( $result_array['psttext'], $this->pstText );
 286                         }
 287                 }
 288
 289                 $result_mapping = array(
 290                         'redirects' => 'r',
 291                         'langlinks' => 'll',
 292                         'categories' => 'cl',
 293                         'links' => 'pl',
 294                         'templates' => 'tl',
 295                         'images' => 'img',
 296                         'externallinks' => 'el',
 297                         'iwlinks' => 'iw',
 298                         'sections' => 's',
 299                         'headitems' => 'hi',
 300                 );
 301                 $this->setIndexedTagNames( $result_array, $result_mapping );
 302                 $result->addValue( null, $this->getModuleName(), $result_array );
 303
 304                 if ( !is_null( $oldLang ) ) {
 305                         $wgLang = $oldLang; // Reset $wgLang to $oldLang
 306                 }
 307         }
 308
 309         /**
 310          * @param $titleObj Title
 311          * @param $popts ParserOptions
 312          * @param $pageId Int
 313          * @param $getWikitext Bool
 314          * @return ParserOutput
 315          */
 316         private function getParsedSectionOrText( $titleObj, $popts, $pageId = null, $getWikitext = false ) {
 317                 global $wgParser;
 318
 319                 $page = WikiPage::factory( $titleObj );
 320
 321                 if ( $this->section !== false ) {
 322                         $this->text = $this->getSectionText( $page->getRawText(), !is_null( $pageId )
 323                                         ? 'page id ' . $pageId : $titleObj->getText() );
 324
 325                         // Not cached (save or load)
 326                         return $wgParser->parse( $this->text, $titleObj, $popts );
 327                 } else {
 328                         // Try the parser cache first
 329                         // getParserOutput will save to Parser cache if able
 330                         $pout = $page->getParserOutput( $popts );
 331                         if ( !$pout ) {
 332                                 $this->dieUsage( "There is no revision ID {$page->getLatest()}", 'missingrev' );
 333                         }
 334                         if ( $getWikitext ) {
 335                                 $this->text = $page->getRawText();
 336                         }
 337                         return $pout;
 338                 }
 339         }
 340
 341         private function getSectionText( $text, $what ) {
 342                 global $wgParser;
 343                 // Not cached (save or load)
 344                 $text = $wgParser->getSection( $text, $this->section, false );
 345                 if ( $text === false ) {
 346                         $this->dieUsage( "There is no section {$this->section} in " . $what, 'nosuchsection' );
 347                 }
 348                 return $text;
 349         }
 350
 351         private function formatLangLinks( $links ) {
 352                 $result = array();
 353                 foreach ( $links as $link ) {
 354                         $entry = array();
 355                         $bits = explode( ':', $link, 2 );
 356                         $title = Title::newFromText( $link );
 357
 358                         $entry['lang'] = $bits[0];
 359                         if ( $title ) {
 360                                 $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
 361                         }
 362                         $this->getResult()->setContent( $entry, $bits[1] );
 363                         $result[] = $entry;
 364                 }
 365                 return $result;
 366         }
 367
 368         private function formatCategoryLinks( $links ) {
 369                 $result = array();
 370                 foreach ( $links as $link => $sortkey ) {
 371                         $entry = array();
 372                         $entry['sortkey'] = $sortkey;
 373                         $this->getResult()->setContent( $entry, $link );
 374                         $result[] = $entry;
 375                 }
 376                 return $result;
 377         }
 378
 379         private function categoriesHtml( $categories ) {
 380                 $context = $this->getContext();
 381                 $context->getOutput()->addCategoryLinks( $categories );
 382                 return $context->getSkin()->getCategories();
 383         }
 384
 385         /**
 386          * @deprecated since 1.18 No modern skin generates language links this way, please use language links
 387          *                        data to generate your own HTML.
 388          * @param $languages array
 389          * @return string
 390          */
 391         private function languagesHtml( $languages ) {
 392                 wfDeprecated( __METHOD__, '1.18' );
 393
 394                 global $wgContLang, $wgHideInterlanguageLinks;
 395
 396                 if ( $wgHideInterlanguageLinks || count( $languages ) == 0 ) {
 397                         return '';
 398                 }
 399
 400                 $s = htmlspecialchars( wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' ) );
 401
 402                 $langs = array();
 403                 foreach ( $languages as $l ) {
 404                         $nt = Title::newFromText( $l );
 405                         $text = Language::fetchLanguageName( $nt->getInterwiki() );
 406
 407                         $langs[] = Html::element( 'a',
 408                                 array( 'href' => $nt->getFullURL(), 'title' => $nt->getText(), 'class' => "external" ),
 409                                 $text == '' ? $l : $text );
 410                 }
 411
 412                 $s .= implode( htmlspecialchars( wfMsgExt( 'pipe-separator', 'escapenoentities' ) ), $langs );
 413
 414                 if ( $wgContLang->isRTL() ) {
 415                         $s = Html::rawElement( 'span', array( 'dir' => "LTR" ), $s );
 416                 }
 417
 418                 return $s;
 419         }
 420
 421         private function formatLinks( $links ) {
 422                 $result = array();
 423                 foreach ( $links as $ns => $nslinks ) {
 424                         foreach ( $nslinks as $title => $id ) {
 425                                 $entry = array();
 426                                 $entry['ns'] = $ns;
 427                                 $this->getResult()->setContent( $entry, Title::makeTitle( $ns, $title )->getFullText() );
 428                                 if ( $id != 0 ) {
 429                                         $entry['exists'] = '';
 430                                 }
 431                                 $result[] = $entry;
 432                         }
 433                 }
 434                 return $result;
 435         }
 436
 437         private function formatIWLinks( $iw ) {
 438                 $result = array();
 439                 foreach ( $iw as $prefix => $titles ) {
 440                         foreach ( array_keys( $titles ) as $title ) {
 441                                 $entry = array();
 442                                 $entry['prefix'] = $prefix;
 443
 444                                 $title = Title::newFromText( "{$prefix}:{$title}" );
 445                                 if ( $title ) {
 446                                         $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
 447                                 }
 448
 449                                 $this->getResult()->setContent( $entry, $title->getFullText() );
 450                                 $result[] = $entry;
 451                         }
 452                 }
 453                 return $result;
 454         }
 455
 456         private function formatHeadItems( $headItems ) {
 457                 $result = array();
 458                 foreach ( $headItems as $tag => $content ) {
 459                         $entry = array();
 460                         $entry['tag'] = $tag;
 461                         $this->getResult()->setContent( $entry, $content );
 462                         $result[] = $entry;
 463                 }
 464                 return $result;
 465         }
 466
 467         private function formatCss( $css ) {
 468                 $result = array();
 469                 foreach ( $css as $file => $link ) {
 470                         $entry = array();
 471                         $entry['file'] = $file;
 472                         $this->getResult()->setContent( $entry, $link );
 473                         $result[] = $entry;
 474                 }
 475                 return $result;
 476         }
 477
 478         private function setIndexedTagNames( &$array, $mapping ) {
 479                 foreach ( $mapping as $key => $name ) {
 480                         if ( isset( $array[$key] ) ) {
 481                                 $this->getResult()->setIndexedTagName( $array[$key], $name );
 482                         }
 483                 }
 484         }
 485
 486         public function getAllowedParams() {
 487                 return array(
 488                         'title' => array(
 489                                 ApiBase::PARAM_DFLT => 'API',
 490                         ),
 491                         'text' => null,
 492                         'summary' => null,
 493                         'page' => null,
 494                         'pageid' => array(
 495                                 ApiBase::PARAM_TYPE => 'integer',
 496                         ),
 497                         'redirects' => false,
 498                         'oldid' => array(
 499                                 ApiBase::PARAM_TYPE => 'integer',
 500                         ),
 501                         'prop' => array(
 502                                 ApiBase::PARAM_DFLT => 'text|langlinks|categories|links|templates|images|externallinks|sections|revid|displaytitle',
 503                                 ApiBase::PARAM_ISMULTI => true,
 504                                 ApiBase::PARAM_TYPE => array(
 505                                         'text',
 506                                         'langlinks',
 507                                         'languageshtml',
 508                                         'categories',
 509                                         'categorieshtml',
 510                                         'links',
 511                                         'templates',
 512                                         'images',
 513                                         'externallinks',
 514                                         'sections',
 515                                         'revid',
 516                                         'displaytitle',
 517                                         'headitems',
 518                                         'headhtml',
 519                                         'iwlinks',
 520                                         'wikitext',
 521                                 )
 522                         ),
 523                         'pst' => false,
 524                         'onlypst' => false,
 525                         'uselang' => null,
 526                         'section' => null,
 527                         'disablepp' => false,
 528                 );
 529         }
 530
 531         public function getParamDescription() {
 532                 $p = $this->getModulePrefix();
 533                 return array(
 534                         'text' => 'Wikitext to parse',
 535                         'summary' => 'Summary to parse',
 536                         'redirects' => "If the {$p}page or the {$p}pageid parameter is set to a redirect, resolve it",
 537                         'title' => 'Title of page the text belongs to',
 538                         'page' => "Parse the content of this page. Cannot be used together with {$p}text and {$p}title",
 539                         'pageid' => "Parse the content of this page. Overrides {$p}page",
 540                         'oldid' => "Parse the content of this revision. Overrides {$p}page and {$p}pageid",
 541                         'prop' => array(
 542                                 'Which pieces of information to get',
 543                                 ' text           - Gives the parsed text of the wikitext',
 544                                 ' langlinks      - Gives the language links in the parsed wikitext',
 545                                 ' categories     - Gives the categories in the parsed wikitext',
 546                                 ' categorieshtml - Gives the HTML version of the categories',
 547                                 ' languageshtml  - Gives the HTML version of the language links',
 548                                 ' links          - Gives the internal links in the parsed wikitext',
 549                                 ' templates      - Gives the templates in the parsed wikitext',
 550                                 ' images         - Gives the images in the parsed wikitext',
 551                                 ' externallinks  - Gives the external links in the parsed wikitext',
 552                                 ' sections       - Gives the sections in the parsed wikitext',
 553                                 ' revid          - Adds the revision ID of the parsed page',
 554                                 ' displaytitle   - Adds the title of the parsed wikitext',
 555                                 ' headitems      - Gives items to put in the <head> of the page',
 556                                 ' headhtml       - Gives parsed <head> of the page',
 557                                 ' iwlinks        - Gives interwiki links in the parsed wikitext',
 558                                 ' wikitext       - Gives the original wikitext that was parsed',
 559                         ),
 560                         'pst' => array(
 561                                 'Do a pre-save transform on the input before parsing it',
 562                                 'Ignored if page, pageid or oldid is used'
 563                         ),
 564                         'onlypst' => array(
 565                                 'Do a pre-save transform (PST) on the input, but don\'t parse it',
 566                                 'Returns the same wikitext, after a PST has been applied. Ignored if page, pageid or oldid is used'
 567                         ),
 568                         'uselang' => 'Which language to parse the request in',
 569                         'section' => 'Only retrieve the content of this section number',
 570                         'disablepp' => 'Disable the PP Report from the parser output',
 571                 );
 572         }
 573
 574         public function getDescription() {
 575                 return 'Parses wikitext and returns parser output';
 576         }
 577
 578         public function getPossibleErrors() {
 579                 return array_merge( parent::getPossibleErrors(), array(
 580                         array( 'code' => 'params', 'info' => 'The page parameter cannot be used together with the text and title parameters' ),
 581                         array( 'code' => 'params', 'info' => 'The text parameter should be passed with the title parameter. Should you be using the "page" parameter instead?' ),
 582                         array( 'code' => 'missingrev', 'info' => 'There is no revision ID oldid' ),
 583                         array( 'code' => 'permissiondenied', 'info' => 'You don\'t have permission to view deleted revisions' ),
 584                         array( 'code' => 'missingtitle', 'info' => 'The page you specified doesn\'t exist' ),
 585                         array( 'code' => 'nosuchsection', 'info' => 'There is no section sectionnumber in page' ),
 586                         array( 'nosuchpageid' ),
 587                         array( 'invalidtitle', 'title' ),
 588                 ) );
 589         }
 590
 591         public function getExamples() {
 592                 return array(
 593                         'api.php?action=parse&text={{Project:Sandbox}}'
 594                 );
 595         }
 596
 597         public function getHelpUrls() {
 598                 return 'https://www.mediawiki.org/wiki/API:Parsing_wikitext#parse';
 599         }
 600
 601         public function getVersion() {
 602                 return __CLASS__ . ': $Id$';
 603         }
 604 }