includes/api/ApiEditPage.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on August 16, 2007
   6  *
   7  * Copyright © 2007 Iker Labarga "<Firstname><Lastname>@gmail.com"
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26
  27 /**
  28  * A module that allows for editing and creating pages.
  29  *
  30  * Currently, this wraps around the EditPage class in an ugly way,
  31  * EditPage.php should be rewritten to provide a cleaner interface,
  32  * see T20654 if you're inspired to fix this.
  33  *
  34  * @ingroup API
  35  */
  36 class ApiEditPage extends ApiBase {
  37         public function execute() {
  38                 $this->useTransactionalTimeLimit();
  39
  40                 $user = $this->getUser();
  41                 $params = $this->extractRequestParams();
  42
  43                 $this->requireAtLeastOneParameter( $params, 'text', 'appendtext', 'prependtext', 'undo' );
  44
  45                 $pageObj = $this->getTitleOrPageId( $params );
  46                 $titleObj = $pageObj->getTitle();
  47                 $apiResult = $this->getResult();
  48
  49                 if ( $params['redirect'] ) {
  50                         if ( $params['prependtext'] === null && $params['appendtext'] === null
  51                                 && $params['section'] !== 'new'
  52                         ) {
  53                                 $this->dieWithError( 'apierror-redirect-appendonly' );
  54                         }
  55                         if ( $titleObj->isRedirect() ) {
  56                                 $oldTitle = $titleObj;
  57
  58                                 $titles = Revision::newFromTitle( $oldTitle, false, Revision::READ_LATEST )
  59                                         ->getContent( Revision::FOR_THIS_USER, $user )
  60                                         ->getRedirectChain();
  61                                 // array_shift( $titles );
  62
  63                                 $redirValues = [];
  64
  65                                 /** @var $newTitle Title */
  66                                 foreach ( $titles as $id => $newTitle ) {
  67
  68                                         if ( !isset( $titles[$id - 1] ) ) {
  69                                                 $titles[$id - 1] = $oldTitle;
  70                                         }
  71
  72                                         $redirValues[] = [
  73                                                 'from' => $titles[$id - 1]->getPrefixedText(),
  74                                                 'to' => $newTitle->getPrefixedText()
  75                                         ];
  76
  77                                         $titleObj = $newTitle;
  78                                 }
  79
  80                                 ApiResult::setIndexedTagName( $redirValues, 'r' );
  81                                 $apiResult->addValue( null, 'redirects', $redirValues );
  82
  83                                 // Since the page changed, update $pageObj
  84                                 $pageObj = WikiPage::factory( $titleObj );
  85                         }
  86                 }
  87
  88                 if ( !isset( $params['contentmodel'] ) || $params['contentmodel'] == '' ) {
  89                         $contentHandler = $pageObj->getContentHandler();
  90                 } else {
  91                         $contentHandler = ContentHandler::getForModelID( $params['contentmodel'] );
  92                 }
  93                 $contentModel = $contentHandler->getModelID();
  94
  95                 $name = $titleObj->getPrefixedDBkey();
  96                 $model = $contentHandler->getModelID();
  97
  98                 if ( $params['undo'] > 0 ) {
  99                         // allow undo via api
 100                 } elseif ( $contentHandler->supportsDirectApiEditing() === false ) {
 101                         $this->dieWithError( [ 'apierror-no-direct-editing', $model, $name ] );
 102                 }
 103
 104                 if ( !isset( $params['contentformat'] ) || $params['contentformat'] == '' ) {
 105                         $contentFormat = $contentHandler->getDefaultFormat();
 106                 } else {
 107                         $contentFormat = $params['contentformat'];
 108                 }
 109
 110                 if ( !$contentHandler->isSupportedFormat( $contentFormat ) ) {
 111                         $this->dieWithError( [ 'apierror-badformat', $contentFormat, $model, $name ] );
 112                 }
 113
 114                 if ( $params['createonly'] && $titleObj->exists() ) {
 115                         $this->dieWithError( 'apierror-articleexists' );
 116                 }
 117                 if ( $params['nocreate'] && !$titleObj->exists() ) {
 118                         $this->dieWithError( 'apierror-missingtitle' );
 119                 }
 120
 121                 // Now let's check whether we're even allowed to do this
 122                 $this->checkTitleUserPermissions(
 123                         $titleObj,
 124                         $titleObj->exists() ? 'edit' : [ 'edit', 'create' ]
 125                 );
 126
 127                 $toMD5 = $params['text'];
 128                 if ( !is_null( $params['appendtext'] ) || !is_null( $params['prependtext'] ) ) {
 129                         $content = $pageObj->getContent();
 130
 131                         if ( !$content ) {
 132                                 if ( $titleObj->getNamespace() == NS_MEDIAWIKI ) {
 133                                         # If this is a MediaWiki:x message, then load the messages
 134                                         # and return the message value for x.
 135                                         $text = $titleObj->getDefaultMessageText();
 136                                         if ( $text === false ) {
 137                                                 $text = '';
 138                                         }
 139
 140                                         try {
 141                                                 $content = ContentHandler::makeContent( $text, $this->getTitle() );
 142                                         } catch ( MWContentSerializationException $ex ) {
 143                                                 $this->dieWithException( $ex, [
 144                                                         'wrap' => ApiMessage::create( 'apierror-contentserializationexception', 'parseerror' )
 145                                                 ] );
 146                                                 return;
 147                                         }
 148                                 } else {
 149                                         # Otherwise, make a new empty content.
 150                                         $content = $contentHandler->makeEmptyContent();
 151                                 }
 152                         }
 153
 154                         // @todo Add support for appending/prepending to the Content interface
 155
 156                         if ( !( $content instanceof TextContent ) ) {
 157                                 $modelName = $contentHandler->getModelID();
 158                                 $this->dieWithError( [ 'apierror-appendnotsupported', $modelName ] );
 159                         }
 160
 161                         if ( !is_null( $params['section'] ) ) {
 162                                 if ( !$contentHandler->supportsSections() ) {
 163                                         $modelName = $contentHandler->getModelID();
 164                                         $this->dieWithError( [ 'apierror-sectionsnotsupported', $modelName ] );
 165                                 }
 166
 167                                 if ( $params['section'] == 'new' ) {
 168                                         // DWIM if they're trying to prepend/append to a new section.
 169                                         $content = null;
 170                                 } else {
 171                                         // Process the content for section edits
 172                                         $section = $params['section'];
 173                                         $content = $content->getSection( $section );
 174
 175                                         if ( !$content ) {
 176                                                 $this->dieWithError( [ 'apierror-nosuchsection', wfEscapeWikiText( $section ) ] );
 177                                         }
 178                                 }
 179                         }
 180
 181                         if ( !$content ) {
 182                                 $text = '';
 183                         } else {
 184                                 $text = $content->serialize( $contentFormat );
 185                         }
 186
 187                         $params['text'] = $params['prependtext'] . $text . $params['appendtext'];
 188                         $toMD5 = $params['prependtext'] . $params['appendtext'];
 189                 }
 190
 191                 if ( $params['undo'] > 0 ) {
 192                         if ( $params['undoafter'] > 0 ) {
 193                                 if ( $params['undo'] < $params['undoafter'] ) {
 194                                         list( $params['undo'], $params['undoafter'] ) =
 195                                                 [ $params['undoafter'], $params['undo'] ];
 196                                 }
 197                                 $undoafterRev = Revision::newFromId( $params['undoafter'] );
 198                         }
 199                         $undoRev = Revision::newFromId( $params['undo'] );
 200                         if ( is_null( $undoRev ) || $undoRev->isDeleted( Revision::DELETED_TEXT ) ) {
 201                                 $this->dieWithError( [ 'apierror-nosuchrevid', $params['undo'] ] );
 202                         }
 203
 204                         if ( $params['undoafter'] == 0 ) {
 205                                 $undoafterRev = $undoRev->getPrevious();
 206                         }
 207                         if ( is_null( $undoafterRev ) || $undoafterRev->isDeleted( Revision::DELETED_TEXT ) ) {
 208                                 $this->dieWithError( [ 'apierror-nosuchrevid', $params['undoafter'] ] );
 209                         }
 210
 211                         if ( $undoRev->getPage() != $pageObj->getId() ) {
 212                                 $this->dieWithError( [ 'apierror-revwrongpage', $undoRev->getId(),
 213                                         $titleObj->getPrefixedText() ] );
 214                         }
 215                         if ( $undoafterRev->getPage() != $pageObj->getId() ) {
 216                                 $this->dieWithError( [ 'apierror-revwrongpage', $undoafterRev->getId(),
 217                                         $titleObj->getPrefixedText() ] );
 218                         }
 219
 220                         $newContent = $contentHandler->getUndoContent(
 221                                 $pageObj->getRevision(),
 222                                 $undoRev,
 223                                 $undoafterRev
 224                         );
 225
 226                         if ( !$newContent ) {
 227                                 $this->dieWithError( 'undo-failure', 'undofailure' );
 228                         }
 229                         if ( empty( $params['contentmodel'] )
 230                                 && empty( $params['contentformat'] )
 231                         ) {
 232                                 // If we are reverting content model, the new content model
 233                                 // might not support the current serialization format, in
 234                                 // which case go back to the old serialization format,
 235                                 // but only if the user hasn't specified a format/model
 236                                 // parameter.
 237                                 if ( !$newContent->isSupportedFormat( $contentFormat ) ) {
 238                                         $contentFormat = $undoafterRev->getContentFormat();
 239                                 }
 240                                 // Override content model with model of undid revision.
 241                                 $contentModel = $newContent->getModel();
 242                         }
 243                         $params['text'] = $newContent->serialize( $contentFormat );
 244                         // If no summary was given and we only undid one rev,
 245                         // use an autosummary
 246                         if ( is_null( $params['summary'] ) &&
 247                                 $titleObj->getNextRevisionID( $undoafterRev->getId() ) == $params['undo']
 248                         ) {
 249                                 $params['summary'] = wfMessage( 'undo-summary' )
 250                                         ->params( $params['undo'], $undoRev->getUserText() )->inContentLanguage()->text();
 251                         }
 252                 }
 253
 254                 // See if the MD5 hash checks out
 255                 if ( !is_null( $params['md5'] ) && md5( $toMD5 ) !== $params['md5'] ) {
 256                         $this->dieWithError( 'apierror-badmd5' );
 257                 }
 258
 259                 // EditPage wants to parse its stuff from a WebRequest
 260                 // That interface kind of sucks, but it's workable
 261                 $requestArray = [
 262                         'wpTextbox1' => $params['text'],
 263                         'format' => $contentFormat,
 264                         'model' => $contentModel,
 265                         'wpEditToken' => $params['token'],
 266                         'wpIgnoreBlankSummary' => true,
 267                         'wpIgnoreBlankArticle' => true,
 268                         'wpIgnoreSelfRedirect' => true,
 269                         'bot' => $params['bot'],
 270                 ];
 271
 272                 if ( !is_null( $params['summary'] ) ) {
 273                         $requestArray['wpSummary'] = $params['summary'];
 274                 }
 275
 276                 if ( !is_null( $params['sectiontitle'] ) ) {
 277                         $requestArray['wpSectionTitle'] = $params['sectiontitle'];
 278                 }
 279
 280                 // TODO: Pass along information from 'undoafter' as well
 281                 if ( $params['undo'] > 0 ) {
 282                         $requestArray['wpUndidRevision'] = $params['undo'];
 283                 }
 284
 285                 // Watch out for basetimestamp == '' or '0'
 286                 // It gets treated as NOW, almost certainly causing an edit conflict
 287                 if ( $params['basetimestamp'] !== null && (bool)$this->getMain()->getVal( 'basetimestamp' ) ) {
 288                         $requestArray['wpEdittime'] = $params['basetimestamp'];
 289                 } else {
 290                         $requestArray['wpEdittime'] = $pageObj->getTimestamp();
 291                 }
 292
 293                 if ( $params['starttimestamp'] !== null ) {
 294                         $requestArray['wpStarttime'] = $params['starttimestamp'];
 295                 } else {
 296                         $requestArray['wpStarttime'] = wfTimestampNow(); // Fake wpStartime
 297                 }
 298
 299                 if ( $params['minor'] || ( !$params['notminor'] && $user->getOption( 'minordefault' ) ) ) {
 300                         $requestArray['wpMinoredit'] = '';
 301                 }
 302
 303                 if ( $params['recreate'] ) {
 304                         $requestArray['wpRecreate'] = '';
 305                 }
 306
 307                 if ( !is_null( $params['section'] ) ) {
 308                         $section = $params['section'];
 309                         if ( !preg_match( '/^((T-)?\d+|new)$/', $section ) ) {
 310                                 $this->dieWithError( 'apierror-invalidsection' );
 311                         }
 312                         $content = $pageObj->getContent();
 313                         if ( $section !== '0' && $section != 'new'
 314                                 && ( !$content || !$content->getSection( $section ) )
 315                         ) {
 316                                 $this->dieWithError( [ 'apierror-nosuchsection', $section ] );
 317                         }
 318                         $requestArray['wpSection'] = $params['section'];
 319                 } else {
 320                         $requestArray['wpSection'] = '';
 321                 }
 322
 323                 $watch = $this->getWatchlistValue( $params['watchlist'], $titleObj );
 324
 325                 // Deprecated parameters
 326                 if ( $params['watch'] ) {
 327                         $watch = true;
 328                 } elseif ( $params['unwatch'] ) {
 329                         $watch = false;
 330                 }
 331
 332                 if ( $watch ) {
 333                         $requestArray['wpWatchthis'] = '';
 334                 }
 335
 336                 // Apply change tags
 337                 if ( count( $params['tags'] ) ) {
 338                         $tagStatus = ChangeTags::canAddTagsAccompanyingChange( $params['tags'], $user );
 339                         if ( $tagStatus->isOK() ) {
 340                                 $requestArray['wpChangeTags'] = implode( ',', $params['tags'] );
 341                         } else {
 342                                 $this->dieStatus( $tagStatus );
 343                         }
 344                 }
 345
 346                 // Pass through anything else we might have been given, to support extensions
 347                 // This is kind of a hack but it's the best we can do to make extensions work
 348                 $requestArray += $this->getRequest()->getValues();
 349
 350                 global $wgTitle, $wgRequest;
 351
 352                 $req = new DerivativeRequest( $this->getRequest(), $requestArray, true );
 353
 354                 // Some functions depend on $wgTitle == $ep->mTitle
 355                 // TODO: Make them not or check if they still do
 356                 $wgTitle = $titleObj;
 357
 358                 $articleContext = new RequestContext;
 359                 $articleContext->setRequest( $req );
 360                 $articleContext->setWikiPage( $pageObj );
 361                 $articleContext->setUser( $this->getUser() );
 362
 363                 /** @var $articleObject Article */
 364                 $articleObject = Article::newFromWikiPage( $pageObj, $articleContext );
 365
 366                 $ep = new EditPage( $articleObject );
 367
 368                 $ep->setApiEditOverride( true );
 369                 $ep->setContextTitle( $titleObj );
 370                 $ep->importFormData( $req );
 371                 $content = $ep->textbox1;
 372
 373                 // Run hooks
 374                 // Handle APIEditBeforeSave parameters
 375                 $r = [];
 376                 // Deprecated in favour of EditFilterMergedContent
 377                 if ( !Hooks::run( 'APIEditBeforeSave', [ $ep, $content, &$r ], '1.28' ) ) {
 378                         if ( count( $r ) ) {
 379                                 $r['result'] = 'Failure';
 380                                 $apiResult->addValue( null, $this->getModuleName(), $r );
 381
 382                                 return;
 383                         }
 384
 385                         $this->dieWithError( 'hookaborted' );
 386                 }
 387
 388                 // Do the actual save
 389                 $oldRevId = $articleObject->getRevIdFetched();
 390                 $result = null;
 391                 // Fake $wgRequest for some hooks inside EditPage
 392                 // @todo FIXME: This interface SUCKS
 393                 $oldRequest = $wgRequest;
 394                 $wgRequest = $req;
 395
 396                 $status = $ep->attemptSave( $result );
 397                 $wgRequest = $oldRequest;
 398
 399                 switch ( $status->value ) {
 400                         case EditPage::AS_HOOK_ERROR:
 401                         case EditPage::AS_HOOK_ERROR_EXPECTED:
 402                                 if ( isset( $status->apiHookResult ) ) {
 403                                         $r = $status->apiHookResult;
 404                                         $r['result'] = 'Failure';
 405                                         $apiResult->addValue( null, $this->getModuleName(), $r );
 406                                         return;
 407                                 }
 408                                 if ( !$status->getErrors() ) {
 409                                         $status->fatal( 'hookaborted' );
 410                                 }
 411                                 $this->dieStatus( $status );
 412
 413                         case EditPage::AS_BLOCKED_PAGE_FOR_USER:
 414                                 $this->dieWithError(
 415                                         'apierror-blocked',
 416                                         'blocked',
 417                                         [ 'blockinfo' => ApiQueryUserInfo::getBlockInfo( $user->getBlock() ) ]
 418                                 );
 419
 420                         case EditPage::AS_READ_ONLY_PAGE:
 421                                 $this->dieReadOnly();
 422
 423                         case EditPage::AS_SUCCESS_NEW_ARTICLE:
 424                                 $r['new'] = true;
 425                                 // fall-through
 426
 427                         case EditPage::AS_SUCCESS_UPDATE:
 428                                 $r['result'] = 'Success';
 429                                 $r['pageid'] = intval( $titleObj->getArticleID() );
 430                                 $r['title'] = $titleObj->getPrefixedText();
 431                                 $r['contentmodel'] = $articleObject->getContentModel();
 432                                 $newRevId = $articleObject->getLatest();
 433                                 if ( $newRevId == $oldRevId ) {
 434                                         $r['nochange'] = true;
 435                                 } else {
 436                                         $r['oldrevid'] = intval( $oldRevId );
 437                                         $r['newrevid'] = intval( $newRevId );
 438                                         $r['newtimestamp'] = wfTimestamp( TS_ISO_8601,
 439                                                 $pageObj->getTimestamp() );
 440                                 }
 441                                 break;
 442
 443                         default:
 444                                 // EditPage sometimes only sets the status code without setting
 445                                 // any actual error messages. Supply defaults for those cases.
 446                                 $maxArticleSize = $this->getConfig()->get( 'MaxArticleSize' );
 447                                 $defaultMessages = [
 448                                         // Currently needed
 449                                         EditPage::AS_IMAGE_REDIRECT_ANON => [ 'apierror-noimageredirect-anon' ],
 450                                         EditPage::AS_IMAGE_REDIRECT_LOGGED => [ 'apierror-noimageredirect-logged' ],
 451                                         EditPage::AS_CONTENT_TOO_BIG => [ 'apierror-contenttoobig', $maxArticleSize ],
 452                                         EditPage::AS_MAX_ARTICLE_SIZE_EXCEEDED => [ 'apierror-contenttoobig', $maxArticleSize ],
 453                                         EditPage::AS_READ_ONLY_PAGE_ANON => [ 'apierror-noedit-anon' ],
 454                                         EditPage::AS_NO_CHANGE_CONTENT_MODEL => [ 'apierror-cantchangecontentmodel' ],
 455                                         EditPage::AS_ARTICLE_WAS_DELETED => [ 'apierror-pagedeleted' ],
 456                                         EditPage::AS_CONFLICT_DETECTED => [ 'editconflict' ],
 457
 458                                         // Currently shouldn't be needed
 459                                         EditPage::AS_SPAM_ERROR => [ 'apierror-spamdetected', wfEscapeWikiText( $result['spam'] ) ],
 460                                         EditPage::AS_READ_ONLY_PAGE_LOGGED => [ 'apierror-noedit' ],
 461                                         EditPage::AS_RATE_LIMITED => [ 'apierror-ratelimited' ],
 462                                         EditPage::AS_NO_CREATE_PERMISSION => [ 'nocreate-loggedin' ],
 463                                         EditPage::AS_BLANK_ARTICLE => [ 'apierror-emptypage' ],
 464                                         EditPage::AS_TEXTBOX_EMPTY => [ 'apierror-emptynewsection' ],
 465                                         EditPage::AS_SUMMARY_NEEDED => [ 'apierror-summaryrequired' ],
 466                                 ];
 467                                 if ( !$status->getErrors() ) {
 468                                         if ( isset( $defaultMessages[$status->value] ) ) {
 469                                                 call_user_func_array( [ $status, 'fatal' ], $defaultMessages[$status->value] );
 470                                         } else {
 471                                                 wfWarn( __METHOD__ . ": Unknown EditPage code {$status->value} with no message" );
 472                                                 $status->fatal( 'apierror-unknownerror-editpage', $status->value );
 473                                         }
 474                                 }
 475                                 $this->dieStatus( $status );
 476                                 break;
 477                 }
 478                 $apiResult->addValue( null, $this->getModuleName(), $r );
 479         }
 480
 481         public function mustBePosted() {
 482                 return true;
 483         }
 484
 485         public function isWriteMode() {
 486                 return true;
 487         }
 488
 489         public function getAllowedParams() {
 490                 return [
 491                         'title' => [
 492                                 ApiBase::PARAM_TYPE => 'string',
 493                         ],
 494                         'pageid' => [
 495                                 ApiBase::PARAM_TYPE => 'integer',
 496                         ],
 497                         'section' => null,
 498                         'sectiontitle' => [
 499                                 ApiBase::PARAM_TYPE => 'string',
 500                         ],
 501                         'text' => [
 502                                 ApiBase::PARAM_TYPE => 'text',
 503                         ],
 504                         'summary' => null,
 505                         'tags' => [
 506                                 ApiBase::PARAM_TYPE => 'tags',
 507                                 ApiBase::PARAM_ISMULTI => true,
 508                         ],
 509                         'minor' => false,
 510                         'notminor' => false,
 511                         'bot' => false,
 512                         'basetimestamp' => [
 513                                 ApiBase::PARAM_TYPE => 'timestamp',
 514                         ],
 515                         'starttimestamp' => [
 516                                 ApiBase::PARAM_TYPE => 'timestamp',
 517                         ],
 518                         'recreate' => false,
 519                         'createonly' => false,
 520                         'nocreate' => false,
 521                         'watch' => [
 522                                 ApiBase::PARAM_DFLT => false,
 523                                 ApiBase::PARAM_DEPRECATED => true,
 524                         ],
 525                         'unwatch' => [
 526                                 ApiBase::PARAM_DFLT => false,
 527                                 ApiBase::PARAM_DEPRECATED => true,
 528                         ],
 529                         'watchlist' => [
 530                                 ApiBase::PARAM_DFLT => 'preferences',
 531                                 ApiBase::PARAM_TYPE => [
 532                                         'watch',
 533                                         'unwatch',
 534                                         'preferences',
 535                                         'nochange'
 536                                 ],
 537                         ],
 538                         'md5' => null,
 539                         'prependtext' => [
 540                                 ApiBase::PARAM_TYPE => 'text',
 541                         ],
 542                         'appendtext' => [
 543                                 ApiBase::PARAM_TYPE => 'text',
 544                         ],
 545                         'undo' => [
 546                                 ApiBase::PARAM_TYPE => 'integer'
 547                         ],
 548                         'undoafter' => [
 549                                 ApiBase::PARAM_TYPE => 'integer'
 550                         ],
 551                         'redirect' => [
 552                                 ApiBase::PARAM_TYPE => 'boolean',
 553                                 ApiBase::PARAM_DFLT => false,
 554                         ],
 555                         'contentformat' => [
 556                                 ApiBase::PARAM_TYPE => ContentHandler::getAllContentFormats(),
 557                         ],
 558                         'contentmodel' => [
 559                                 ApiBase::PARAM_TYPE => ContentHandler::getContentModels(),
 560                         ],
 561                         'token' => [
 562                                 // Standard definition automatically inserted
 563                                 ApiBase::PARAM_HELP_MSG_APPEND => [ 'apihelp-edit-param-token' ],
 564                         ],
 565                 ];
 566         }
 567
 568         public function needsToken() {
 569                 return 'csrf';
 570         }
 571
 572         protected function getExamplesMessages() {
 573                 return [
 574                         'action=edit&title=Test&summary=test%20summary&' .
 575                                 'text=article%20content&basetimestamp=2007-08-24T12:34:54Z&token=123ABC'
 576                                 => 'apihelp-edit-example-edit',
 577                         'action=edit&title=Test&summary=NOTOC&minor=&' .
 578                                 'prependtext=__NOTOC__%0A&basetimestamp=2007-08-24T12:34:54Z&token=123ABC'
 579                                 => 'apihelp-edit-example-prepend',
 580                         'action=edit&title=Test&undo=13585&undoafter=13579&' .
 581                                 'basetimestamp=2007-08-24T12:34:54Z&token=123ABC'
 582                                 => 'apihelp-edit-example-undo',
 583                 ];
 584         }
 585
 586         public function getHelpUrls() {
 587                 return 'https://www.mediawiki.org/wiki/API:Edit';
 588         }
 589 }