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