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;
  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'] != $this->getContext()->getLanguage()->getCode() ) {
  67                         $oldLang = $this->getContext()->getLanguage(); // Backup language
  68                         $this->getContext()->setLanguage( 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 ); #FIXME: use Content object¡
 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                 if ( isset( $prop['properties'] ) ) {
 289                         $result_array['properties'] = $this->formatProperties( $p_result->getProperties() );
 290                 }
 291
 292                 $result_mapping = array(
 293                         'redirects' => 'r',
 294                         'langlinks' => 'll',
 295                         'categories' => 'cl',
 296                         'links' => 'pl',
 297                         'templates' => 'tl',
 298                         'images' => 'img',
 299                         'externallinks' => 'el',
 300                         'iwlinks' => 'iw',
 301                         'sections' => 's',
 302                         'headitems' => 'hi',
 303                         'properties' => 'pp',
 304                 );
 305                 $this->setIndexedTagNames( $result_array, $result_mapping );
 306                 $result->addValue( null, $this->getModuleName(), $result_array );
 307
 308                 if ( !is_null( $oldLang ) ) {
 309                         $this->getContext()->setLanguage( $oldLang ); // Reset language to $oldLang
 310                 }
 311         }
 312
 313         /**
 314          * @param $titleObj Title
 315          * @param $popts ParserOptions
 316          * @param $pageId Int
 317          * @param $getWikitext Bool
 318          * @return ParserOutput
 319          */
 320         private function getParsedSectionOrText( $titleObj, $popts, $pageId = null, $getWikitext = false ) {
 321                 global $wgParser;
 322
 323                 $page = WikiPage::factory( $titleObj );
 324
 325                 if ( $this->section !== false ) { #FIXME: get section Content, get parser output, ...
 326                         $this->text = $this->getSectionText( $page->getRawText(), !is_null( $pageId )
 327                                         ? 'page id ' . $pageId : $titleObj->getText() ); #FIXME: get section...
 328
 329                         // Not cached (save or load)
 330                         return $wgParser->parse( $this->text, $titleObj, $popts );
 331                 } else {
 332                         // Try the parser cache first
 333                         // getParserOutput will save to Parser cache if able
 334                         $pout = $page->getParserOutput( $popts );
 335                         if ( !$pout ) {
 336                                 $this->dieUsage( "There is no revision ID {$page->getLatest()}", 'missingrev' );
 337                         }
 338                         if ( $getWikitext ) {
 339                 $this->content = $page->getContent( Revision::RAW ); #FIXME: use $this->content everywhere
 340                                 $this->text = ContentHandler::getContentText( $this->content ); #FIXME: serialize, get format from params; or use object structure in result?
 341                         }
 342                         return $pout;
 343                 }
 344         }
 345
 346         private function getSectionText( $text, $what ) { #FIXME: replace with Content::getSection
 347                 global $wgParser;
 348                 // Not cached (save or load)
 349                 $text = $wgParser->getSection( $text, $this->section, false );
 350                 if ( $text === false ) {
 351                         $this->dieUsage( "There is no section {$this->section} in " . $what, 'nosuchsection' );
 352                 }
 353                 return $text;
 354         }
 355
 356         private function formatLangLinks( $links ) {
 357                 $result = array();
 358                 foreach ( $links as $link ) {
 359                         $entry = array();
 360                         $bits = explode( ':', $link, 2 );
 361                         $title = Title::newFromText( $link );
 362
 363                         $entry['lang'] = $bits[0];
 364                         if ( $title ) {
 365                                 $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
 366                         }
 367                         $this->getResult()->setContent( $entry, $bits[1] );
 368                         $result[] = $entry;
 369                 }
 370                 return $result;
 371         }
 372
 373         private function formatCategoryLinks( $links ) {
 374                 $result = array();
 375                 foreach ( $links as $link => $sortkey ) {
 376                         $entry = array();
 377                         $entry['sortkey'] = $sortkey;
 378                         $this->getResult()->setContent( $entry, $link );
 379                         $result[] = $entry;
 380                 }
 381                 return $result;
 382         }
 383
 384         private function categoriesHtml( $categories ) {
 385                 $context = $this->getContext();
 386                 $context->getOutput()->addCategoryLinks( $categories );
 387                 return $context->getSkin()->getCategories();
 388         }
 389
 390         /**
 391          * @deprecated since 1.18 No modern skin generates language links this way, please use language links
 392          *                        data to generate your own HTML.
 393          * @param $languages array
 394          * @return string
 395          */
 396         private function languagesHtml( $languages ) {
 397                 wfDeprecated( __METHOD__, '1.18' );
 398
 399                 global $wgContLang, $wgHideInterlanguageLinks;
 400
 401                 if ( $wgHideInterlanguageLinks || count( $languages ) == 0 ) {
 402                         return '';
 403                 }
 404
 405                 $s = htmlspecialchars( wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' ) );
 406
 407                 $langs = array();
 408                 foreach ( $languages as $l ) {
 409                         $nt = Title::newFromText( $l );
 410                         $text = Language::fetchLanguageName( $nt->getInterwiki() );
 411
 412                         $langs[] = Html::element( 'a',
 413                                 array( 'href' => $nt->getFullURL(), 'title' => $nt->getText(), 'class' => "external" ),
 414                                 $text == '' ? $l : $text );
 415                 }
 416
 417                 $s .= implode( htmlspecialchars( wfMsgExt( 'pipe-separator', 'escapenoentities' ) ), $langs );
 418
 419                 if ( $wgContLang->isRTL() ) {
 420                         $s = Html::rawElement( 'span', array( 'dir' => "LTR" ), $s );
 421                 }
 422
 423                 return $s;
 424         }
 425
 426         private function formatLinks( $links ) {
 427                 $result = array();
 428                 foreach ( $links as $ns => $nslinks ) {
 429                         foreach ( $nslinks as $title => $id ) {
 430                                 $entry = array();
 431                                 $entry['ns'] = $ns;
 432                                 $this->getResult()->setContent( $entry, Title::makeTitle( $ns, $title )->getFullText() );
 433                                 if ( $id != 0 ) {
 434                                         $entry['exists'] = '';
 435                                 }
 436                                 $result[] = $entry;
 437                         }
 438                 }
 439                 return $result;
 440         }
 441
 442         private function formatIWLinks( $iw ) {
 443                 $result = array();
 444                 foreach ( $iw as $prefix => $titles ) {
 445                         foreach ( array_keys( $titles ) as $title ) {
 446                                 $entry = array();
 447                                 $entry['prefix'] = $prefix;
 448
 449                                 $title = Title::newFromText( "{$prefix}:{$title}" );
 450                                 if ( $title ) {
 451                                         $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
 452                                 }
 453
 454                                 $this->getResult()->setContent( $entry, $title->getFullText() );
 455                                 $result[] = $entry;
 456                         }
 457                 }
 458                 return $result;
 459         }
 460
 461         private function formatHeadItems( $headItems ) {
 462                 $result = array();
 463                 foreach ( $headItems as $tag => $content ) {
 464                         $entry = array();
 465                         $entry['tag'] = $tag;
 466                         $this->getResult()->setContent( $entry, $content );
 467                         $result[] = $entry;
 468                 }
 469                 return $result;
 470         }
 471
 472         private function formatProperties( $properties ) {
 473                 $result = array();
 474                 foreach ( $properties as $name => $value ) {
 475                         $entry = array();
 476                         $entry['name'] = $name;
 477                         $this->getResult()->setContent( $entry, $value );
 478                         $result[] = $entry;
 479                 }
 480                 return $result;
 481         }
 482
 483         private function formatCss( $css ) {
 484                 $result = array();
 485                 foreach ( $css as $file => $link ) {
 486                         $entry = array();
 487                         $entry['file'] = $file;
 488                         $this->getResult()->setContent( $entry, $link );
 489                         $result[] = $entry;
 490                 }
 491                 return $result;
 492         }
 493
 494         private function setIndexedTagNames( &$array, $mapping ) {
 495                 foreach ( $mapping as $key => $name ) {
 496                         if ( isset( $array[$key] ) ) {
 497                                 $this->getResult()->setIndexedTagName( $array[$key], $name );
 498                         }
 499                 }
 500         }
 501
 502         public function getAllowedParams() {
 503                 return array(
 504                         'title' => array(
 505                                 ApiBase::PARAM_DFLT => 'API',
 506                         ),
 507                         'text' => null,
 508                         'summary' => null,
 509                         'page' => null,
 510                         'pageid' => array(
 511                                 ApiBase::PARAM_TYPE => 'integer',
 512                         ),
 513                         'redirects' => false,
 514                         'oldid' => array(
 515                                 ApiBase::PARAM_TYPE => 'integer',
 516                         ),
 517                         'prop' => array(
 518                                 ApiBase::PARAM_DFLT => 'text|langlinks|categories|links|templates|images|externallinks|sections|revid|displaytitle|iwlinks|properties',
 519                                 ApiBase::PARAM_ISMULTI => true,
 520                                 ApiBase::PARAM_TYPE => array(
 521                                         'text',
 522                                         'langlinks',
 523                                         'languageshtml',
 524                                         'categories',
 525                                         'categorieshtml',
 526                                         'links',
 527                                         'templates',
 528                                         'images',
 529                                         'externallinks',
 530                                         'sections',
 531                                         'revid',
 532                                         'displaytitle',
 533                                         'headitems',
 534                                         'headhtml',
 535                                         'iwlinks',
 536                                         'wikitext',
 537                                         'properties',
 538                                 )
 539                         ),
 540                         'pst' => false,
 541                         'onlypst' => false,
 542                         'uselang' => null,
 543                         'section' => null,
 544                         'disablepp' => false,
 545                 );
 546         }
 547
 548         public function getParamDescription() {
 549                 $p = $this->getModulePrefix();
 550                 return array(
 551                         'text' => 'Wikitext to parse',
 552                         'summary' => 'Summary to parse',
 553                         'redirects' => "If the {$p}page or the {$p}pageid parameter is set to a redirect, resolve it",
 554                         'title' => 'Title of page the text belongs to',
 555                         'page' => "Parse the content of this page. Cannot be used together with {$p}text and {$p}title",
 556                         'pageid' => "Parse the content of this page. Overrides {$p}page",
 557                         'oldid' => "Parse the content of this revision. Overrides {$p}page and {$p}pageid",
 558                         'prop' => array(
 559                                 'Which pieces of information to get',
 560                                 ' text           - Gives the parsed text of the wikitext',
 561                                 ' langlinks      - Gives the language links in the parsed wikitext',
 562                                 ' categories     - Gives the categories in the parsed wikitext',
 563                                 ' categorieshtml - Gives the HTML version of the categories',
 564                                 ' languageshtml  - Gives the HTML version of the language links',
 565                                 ' links          - Gives the internal links in the parsed wikitext',
 566                                 ' templates      - Gives the templates in the parsed wikitext',
 567                                 ' images         - Gives the images in the parsed wikitext',
 568                                 ' externallinks  - Gives the external links in the parsed wikitext',
 569                                 ' sections       - Gives the sections in the parsed wikitext',
 570                                 ' revid          - Adds the revision ID of the parsed page',
 571                                 ' displaytitle   - Adds the title of the parsed wikitext',
 572                                 ' headitems      - Gives items to put in the <head> of the page',
 573                                 ' headhtml       - Gives parsed <head> of the page',
 574                                 ' iwlinks        - Gives interwiki links in the parsed wikitext',
 575                                 ' wikitext       - Gives the original wikitext that was parsed',
 576                                 ' properties     - Gives various properties defined in the parsed wikitext',
 577                         ),
 578                         'pst' => array(
 579                                 'Do a pre-save transform on the input before parsing it',
 580                                 'Ignored if page, pageid or oldid is used'
 581                         ),
 582                         'onlypst' => array(
 583                                 'Do a pre-save transform (PST) on the input, but don\'t parse it',
 584                                 'Returns the same wikitext, after a PST has been applied. Ignored if page, pageid or oldid is used'
 585                         ),
 586                         'uselang' => 'Which language to parse the request in',
 587                         'section' => 'Only retrieve the content of this section number',
 588                         'disablepp' => 'Disable the PP Report from the parser output',
 589                 );
 590         }
 591
 592         public function getDescription() {
 593                 return array(
 594                         'Parses wikitext and returns parser output',
 595                         'See the various prop-Modules of action=query to get information from the current version of a page',
 596                 );
 597         }
 598
 599         public function getPossibleErrors() {
 600                 return array_merge( parent::getPossibleErrors(), array(
 601                         array( 'code' => 'params', 'info' => 'The page parameter cannot be used together with the text and title parameters' ),
 602                         array( 'code' => 'params', 'info' => 'The text parameter should be passed with the title parameter. Should you be using the "page" parameter instead?' ),
 603                         array( 'code' => 'missingrev', 'info' => 'There is no revision ID oldid' ),
 604                         array( 'code' => 'permissiondenied', 'info' => 'You don\'t have permission to view deleted revisions' ),
 605                         array( 'code' => 'missingtitle', 'info' => 'The page you specified doesn\'t exist' ),
 606                         array( 'code' => 'nosuchsection', 'info' => 'There is no section sectionnumber in page' ),
 607                         array( 'nosuchpageid' ),
 608                         array( 'invalidtitle', 'title' ),
 609                 ) );
 610         }
 611
 612         public function getExamples() {
 613                 return array(
 614                         'api.php?action=parse&text={{Project:Sandbox}}'
 615                 );
 616         }
 617
 618         public function getHelpUrls() {
 619                 return 'https://www.mediawiki.org/wiki/API:Parsing_wikitext#parse';
 620         }
 621
 622         public function getVersion() {
 623                 return __CLASS__ . ': $Id$';
 624         }
 625 }