includes/EditPage.php

   1 <?php
   2 /**
   3  * Contains the EditPage class
   4  * @file
   5  */
   6
   7 /**
   8  * The edit page/HTML interface (split from Article)
   9  * The actual database and text munging is still in Article,
  10  * but it should get easier to call those from alternate
  11  * interfaces.
  12  *
  13  * EditPage cares about two distinct titles:
  14  * $wgTitle is the page that forms submit to, links point to,
  15  * redirects go to, etc. $this->mTitle (as well as $mArticle) is the
  16  * page in the database that is actually being edited. These are
  17  * usually the same, but they are now allowed to be different.
  18  */
  19 class EditPage {
  20         const AS_SUCCESS_UPDATE            = 200;
  21         const AS_SUCCESS_NEW_ARTICLE       = 201;
  22         const AS_HOOK_ERROR                = 210;
  23         const AS_FILTERING                 = 211;
  24         const AS_HOOK_ERROR_EXPECTED       = 212;
  25         const AS_BLOCKED_PAGE_FOR_USER     = 215;
  26         const AS_CONTENT_TOO_BIG           = 216;
  27         const AS_USER_CANNOT_EDIT          = 217;
  28         const AS_READ_ONLY_PAGE_ANON       = 218;
  29         const AS_READ_ONLY_PAGE_LOGGED     = 219;
  30         const AS_READ_ONLY_PAGE            = 220;
  31         const AS_RATE_LIMITED              = 221;
  32         const AS_ARTICLE_WAS_DELETED       = 222;
  33         const AS_NO_CREATE_PERMISSION      = 223;
  34         const AS_BLANK_ARTICLE             = 224;
  35         const AS_CONFLICT_DETECTED         = 225;
  36         const AS_SUMMARY_NEEDED            = 226;
  37         const AS_TEXTBOX_EMPTY             = 228;
  38         const AS_MAX_ARTICLE_SIZE_EXCEEDED = 229;
  39         const AS_OK                        = 230;
  40         const AS_END                       = 231;
  41         const AS_SPAM_ERROR                = 232;
  42         const AS_IMAGE_REDIRECT_ANON       = 233;
  43         const AS_IMAGE_REDIRECT_LOGGED     = 234;
  44
  45         var $mArticle;
  46         var $mTitle;
  47         var $action;
  48         var $mMetaData = '';
  49         var $isConflict = false;
  50         var $isCssJsSubpage = false;
  51         var $isCssSubpage = false;
  52         var $isJsSubpage = false;
  53         var $deletedSinceEdit = false;
  54         var $formtype;
  55         var $firsttime;
  56         var $lastDelete;
  57         var $mTokenOk = false;
  58         var $mTokenOkExceptSuffix = false;
  59         var $mTriedSave = false;
  60         var $tooBig = false;
  61         var $kblength = false;
  62         var $missingComment = false;
  63         var $missingSummary = false;
  64         var $allowBlankSummary = false;
  65         var $autoSumm = '';
  66         var $hookError = '';
  67         #var $mPreviewTemplates;
  68         var $mParserOutput;
  69         var $mBaseRevision = false;
  70         var $mShowSummaryField = true;
  71
  72         # Form values
  73         var $save = false, $preview = false, $diff = false;
  74         var $minoredit = false, $watchthis = false, $recreate = false;
  75         var $textbox1 = '', $textbox2 = '', $summary = '', $nosummary = false;
  76         var $edittime = '', $section = '', $starttime = '';
  77         var $oldid = 0, $editintro = '', $scrolltop = null, $bot = true;
  78
  79         # Placeholders for text injection by hooks (must be HTML)
  80         # extensions should take care to _append_ to the present value
  81         public $editFormPageTop; // Before even the preview
  82         public $editFormTextTop;
  83         public $editFormTextBeforeContent;
  84         public $editFormTextAfterWarn;
  85         public $editFormTextAfterTools;
  86         public $editFormTextBottom;
  87         public $editFormTextAfterContent;
  88         public $previewTextAfterContent;
  89
  90         /* $didSave should be set to true whenever an article was succesfully altered. */
  91         public $didSave = false;
  92         public $undidRev = 0;
  93
  94         public $suppressIntro = false;
  95
  96         /**
  97          * @todo document
  98          * @param $article
  99          */
 100         function EditPage( $article ) {
 101                 $this->mArticle =& $article;
 102                 $this->mTitle = $article->getTitle();
 103                 $this->action = 'submit';
 104
 105                 # Placeholders for text injection by hooks (empty per default)
 106                 $this->editFormPageTop =
 107                 $this->editFormTextTop =
 108                 $this->editFormTextBeforeContent =
 109                 $this->editFormTextAfterWarn =
 110                 $this->editFormTextAfterTools =
 111                 $this->editFormTextBottom =
 112                 $this->editFormTextAfterContent =
 113                 $this->previewTextAfterContent =
 114                 $this->mPreloadText = "";
 115         }
 116
 117         function getArticle() {
 118                 return $this->mArticle;
 119         }
 120
 121
 122         /**
 123          * Fetch initial editing page content.
 124          * @returns mixed string on success, $def_text for invalid sections
 125          * @private
 126          */
 127         function getContent( $def_text = '' ) {
 128                 global $wgOut, $wgRequest, $wgParser, $wgContLang, $wgMessageCache;
 129
 130                 wfProfileIn( __METHOD__ );
 131                 # Get variables from query string :P
 132                 $section = $wgRequest->getVal( 'section' );
 133
 134                 $preload = $wgRequest->getVal( 'preload',
 135                         // Custom preload text for new sections
 136                         $section === 'new' ? 'MediaWiki:addsection-preload' : '' );
 137                 $undoafter = $wgRequest->getVal( 'undoafter' );
 138                 $undo = $wgRequest->getVal( 'undo' );
 139
 140                 $text = '';
 141                 // For message page not locally set, use the i18n message.
 142                 // For other non-existent articles, use preload text if any.
 143                 if ( !$this->mTitle->exists() ) {
 144                         if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
 145                                 # If this is a system message, get the default text.
 146                                 list( $message, $lang ) = $wgMessageCache->figureMessage( $wgContLang->lcfirst( $this->mTitle->getText() ) );
 147                                 $wgMessageCache->loadAllMessages( $lang );
 148                                 $text = wfMsgGetKey( $message, false, $lang, false );
 149                                 if( wfEmptyMsg( $message, $text ) )
 150                                         $text = $this->getPreloadedText( $preload );
 151                         } else {
 152                                 # If requested, preload some text.
 153                                 $text = $this->getPreloadedText( $preload );
 154                         }
 155                 // For existing pages, get text based on "undo" or section parameters.
 156                 } else {
 157                         $text = $this->mArticle->getContent();
 158                         if ( $undo > 0 && $undoafter > 0 && $undo < $undoafter ) {
 159                                 # If they got undoafter and undo round the wrong way, switch them
 160                                 list( $undo, $undoafter ) = array( $undoafter, $undo );
 161                         }
 162                         if ( $undo > 0 && $undo > $undoafter ) {
 163                                 # Undoing a specific edit overrides section editing; section-editing
 164                                 # doesn't work with undoing.
 165                                 if ( $undoafter ) {
 166                                         $undorev = Revision::newFromId( $undo );
 167                                         $oldrev = Revision::newFromId( $undoafter );
 168                                 } else {
 169                                         $undorev = Revision::newFromId( $undo );
 170                                         $oldrev = $undorev ? $undorev->getPrevious() : null;
 171                                 }
 172
 173                                 # Sanity check, make sure it's the right page,
 174                                 # the revisions exist and they were not deleted.
 175                                 # Otherwise, $text will be left as-is.
 176                                 if ( !is_null( $undorev ) && !is_null( $oldrev ) &&
 177                                         $undorev->getPage() == $oldrev->getPage() &&
 178                                         $undorev->getPage() == $this->mArticle->getID() &&
 179                                         !$undorev->isDeleted( Revision::DELETED_TEXT ) &&
 180                                         !$oldrev->isDeleted( Revision::DELETED_TEXT ) ) {
 181
 182                                         $undotext = $this->mArticle->getUndoText( $undorev, $oldrev );
 183                                         if ( $undotext === false ) {
 184                                                 # Warn the user that something went wrong
 185                                                 $this->editFormPageTop .= $wgOut->parse( '<div class="error mw-undo-failure">' . wfMsgNoTrans( 'undo-failure' ) . '</div>' );
 186                                         } else {
 187                                                 $text = $undotext;
 188                                                 # Inform the user of our success and set an automatic edit summary
 189                                                 $this->editFormPageTop .= $wgOut->parse( '<div class="mw-undo-success">' . wfMsgNoTrans( 'undo-success' ) . '</div>' );
 190                                                 $firstrev = $oldrev->getNext();
 191                                                 # If we just undid one rev, use an autosummary
 192                                                 if ( $firstrev->mId == $undo ) {
 193                                                         $this->summary = wfMsgForContent( 'undo-summary', $undo, $undorev->getUserText() );
 194                                                         $this->undidRev = $undo;
 195                                                 }
 196                                                 $this->formtype = 'diff';
 197                                         }
 198                                 } else {
 199                                         // Failed basic sanity checks.
 200                                         // Older revisions may have been removed since the link
 201                                         // was created, or we may simply have got bogus input.
 202                                         $this->editFormPageTop .= $wgOut->parse( '<div class="error mw-undo-norev">' . wfMsgNoTrans( 'undo-norev' ) . '</div>' );
 203                                 }
 204                         } else if ( $section != '' ) {
 205                                 if ( $section == 'new' ) {
 206                                         $text = $this->getPreloadedText( $preload );
 207                                 } else {
 208                                         // Get section edit text (returns $def_text for invalid sections)
 209                                         $text = $wgParser->getSection( $text, $section, $def_text );
 210                                 }
 211                         }
 212                 }
 213
 214                 wfProfileOut( __METHOD__ );
 215                 return $text;
 216         }
 217
 218         /** Use this method before edit() to preload some text into the edit box */
 219         public function setPreloadedText( $text ) {
 220                 $this->mPreloadText = $text;
 221         }
 222
 223         /**
 224          * Get the contents of a page from its title and remove includeonly tags
 225          *
 226          * @param $preload String: the title of the page.
 227          * @return string The contents of the page.
 228          */
 229         protected function getPreloadedText( $preload ) {
 230                 global $wgParser, $wgUser;
 231                 if ( !empty( $this->mPreloadText ) ) {
 232                         return $this->mPreloadText;
 233                 } else {
 234                         $preloadTitle = Title::newFromText( $preload );
 235                         if ( isset( $preloadTitle ) && $preloadTitle->userCanRead() ) {
 236                                 return $wgParser->getTransclusionText( $preloadTitle, ParserOptions::newFromUser( $wgUser ) );
 237                         }
 238                 }
 239         }
 240
 241         /**
 242          * This is the function that extracts metadata from the article body on the first view.
 243          * To turn the feature on, set $wgUseMetadataEdit = true ; in LocalSettings
 244          *  and set $wgMetadataWhitelist to the *full* title of the template whitelist
 245          */
 246         function extractMetaDataFromArticle () {
 247                 global $wgUseMetadataEdit, $wgMetadataWhitelist, $wgContLang;
 248                 $this->mMetaData = '';
 249                 if ( !$wgUseMetadataEdit ) return;
 250                 if ( $wgMetadataWhitelist == '' ) return;
 251                 $s = '';
 252                 $t = $this->getContent();
 253
 254                 # MISSING : <nowiki> filtering
 255
 256                 # Categories and language links
 257                 $t = explode( "\n" , $t );
 258                 $catlow = strtolower( $wgContLang->getNsText( NS_CATEGORY ) );
 259                 $cat = $ll = array();
 260                 foreach ( $t as $key => $x ) {
 261                         $y = trim( strtolower ( $x ) );
 262                         while ( substr( $y , 0 , 2 ) == '[[' ) {
 263                                 $y = explode( ']]' , trim ( $x ) );
 264                                 $first = array_shift( $y );
 265                                 $first = explode( ':' , $first );
 266                                 $ns = array_shift( $first );
 267                                 $ns = trim( str_replace( '[' , '' , $ns ) );
 268                                 if ( $wgContLang->getLanguageName( $ns ) || strtolower( $ns ) == $catlow ) {
 269                                         $add = '[[' . $ns . ':' . implode( ':' , $first ) . ']]';
 270                                         if ( strtolower( $ns ) == $catlow ) $cat[] = $add;
 271                                         else $ll[] = $add;
 272                                         $x = implode( ']]', $y );
 273                                         $t[$key] = $x;
 274                                         $y = trim( strtolower( $x ) );
 275                                 } else {
 276                                         $x = implode( ']]' , $y );
 277                                         $y = trim( strtolower( $x ) );
 278                                 }
 279                         }
 280                 }
 281                 if ( count( $cat ) ) $s .= implode( ' ' , $cat ) . "\n";
 282                 if ( count( $ll ) ) $s .= implode( ' ' , $ll ) . "\n";
 283                 $t = implode( "\n" , $t );
 284
 285                 # Load whitelist
 286                 $sat = array () ; # stand-alone-templates; must be lowercase
 287                 $wl_title = Title::newFromText( $wgMetadataWhitelist );
 288                 $wl_article = new Article ( $wl_title );
 289                 $wl = explode ( "\n" , $wl_article->getContent() );
 290                 foreach ( $wl AS $x ) {
 291                         $isentry = false;
 292                         $x = trim ( $x );
 293                         while ( substr ( $x , 0 , 1 ) == '*' ) {
 294                                 $isentry = true;
 295                                 $x = trim ( substr ( $x , 1 ) );
 296                         }
 297                         if ( $isentry ) {
 298                                 $sat[] = strtolower ( $x );
 299                         }
 300
 301                 }
 302
 303                 # Templates, but only some
 304                 $t = explode( '{{' , $t );
 305                 $tl = array() ;
 306                 foreach ( $t as $key => $x ) {
 307                         $y = explode( '}}' , $x , 2 );
 308                         if ( count( $y ) == 2 ) {
 309                                 $z = $y[0];
 310                                 $z = explode( '|' , $z );
 311                                 $tn = array_shift( $z );
 312                                 if ( in_array( strtolower( $tn ) , $sat ) ) {
 313                                         $tl[] = '{{' . $y[0] . '}}';
 314                                         $t[$key] = $y[1];
 315                                         $y = explode( '}}' , $y[1] , 2 );
 316                                 }
 317                                 else $t[$key] = '{{' . $x;
 318                         }
 319                         else if ( $key != 0 ) $t[$key] = '{{' . $x;
 320                         else $t[$key] = $x;
 321                 }
 322                 if ( count( $tl ) ) $s .= implode( ' ' , $tl );
 323                 $t = implode( '' , $t );
 324
 325                 $t = str_replace( "\n\n\n", "\n", $t );
 326                 $this->mArticle->mContent = $t;
 327                 $this->mMetaData = $s;
 328         }
 329
 330         /*
 331          * Check if a page was deleted while the user was editing it, before submit.
 332          * Note that we rely on the logging table, which hasn't been always there,
 333          * but that doesn't matter, because this only applies to brand new
 334          * deletes.
 335          */
 336         protected function wasDeletedSinceLastEdit() {
 337                 if ( $this->deletedSinceEdit )
 338                         return true;
 339                 if ( $this->mTitle->isDeletedQuick() ) {
 340                         $this->lastDelete = $this->getLastDelete();
 341                         if ( $this->lastDelete ) {
 342                                 $deleteTime = wfTimestamp( TS_MW, $this->lastDelete->log_timestamp );
 343                                 if ( $deleteTime > $this->starttime ) {
 344                                         $this->deletedSinceEdit = true;
 345                                 }
 346                         }
 347                 }
 348                 return $this->deletedSinceEdit;
 349         }
 350
 351         function submit() {
 352                 $this->edit();
 353         }
 354
 355         /**
 356          * This is the function that gets called for "action=edit". It
 357          * sets up various member variables, then passes execution to
 358          * another function, usually showEditForm()
 359          *
 360          * The edit form is self-submitting, so that when things like
 361          * preview and edit conflicts occur, we get the same form back
 362          * with the extra stuff added.  Only when the final submission
 363          * is made and all is well do we actually save and redirect to
 364          * the newly-edited page.
 365          */
 366         function edit() {
 367                 global $wgOut, $wgRequest;
 368                 // Allow extensions to modify/prevent this form or submission
 369                 if ( !wfRunHooks( 'AlternateEdit', array( $this ) ) ) {
 370                         return;
 371                 }
 372
 373                 wfProfileIn( __METHOD__ );
 374                 wfDebug( __METHOD__.": enter\n" );
 375
 376                 // This is not an article
 377                 $wgOut->setArticleFlag( false );
 378
 379                 $this->importFormData( $wgRequest );
 380                 $this->firsttime = false;
 381
 382                 if ( $this->live ) {
 383                         $this->livePreview();
 384                         wfProfileOut( __METHOD__ );
 385                         return;
 386                 }
 387
 388                 if ( wfReadOnly() && $this->save ) {
 389                         // Force preview
 390                         $this->save = false;
 391                         $this->preview = true;
 392                 }
 393
 394                 $wgOut->addScriptFile( 'edit.js' );
 395
 396                 $permErrors = $this->getEditPermissionErrors();
 397                 if ( $permErrors ) {
 398                         wfDebug( __METHOD__ . ": User can't edit\n" );
 399                         $this->readOnlyPage( $this->getContent( false ), true, $permErrors, 'edit' );
 400                         wfProfileOut( __METHOD__ );
 401                         return;
 402                 } else {
 403                         if ( $this->save ) {
 404                                 $this->formtype = 'save';
 405                         } else if ( $this->preview ) {
 406                                 $this->formtype = 'preview';
 407                         } else if ( $this->diff ) {
 408                                 $this->formtype = 'diff';
 409                         } else { # First time through
 410                                 $this->firsttime = true;
 411                                 if ( $this->previewOnOpen() ) {
 412                                         $this->formtype = 'preview';
 413                                 } else {
 414                                         $this->extractMetaDataFromArticle () ;
 415                                         $this->formtype = 'initial';
 416                                 }
 417                         }
 418                 }
 419
 420                 // If they used redlink=1 and the page exists, redirect to the main article
 421                 if ( $wgRequest->getBool( 'redlink' ) && $this->mTitle->exists() ) {
 422                         $wgOut->redirect( $this->mTitle->getFullURL() );
 423                 }
 424
 425                 wfProfileIn( __METHOD__."-business-end" );
 426
 427                 $this->isConflict = false;
 428                 // css / js subpages of user pages get a special treatment
 429                 $this->isCssJsSubpage      = $this->mTitle->isCssJsSubpage();
 430                 $this->isCssSubpage        = $this->mTitle->isCssSubpage();
 431                 $this->isJsSubpage         = $this->mTitle->isJsSubpage();
 432                 $this->isValidCssJsSubpage = $this->mTitle->isValidCssJsSubpage();
 433
 434                 # Show applicable editing introductions
 435                 if ( $this->formtype == 'initial' || $this->firsttime )
 436                         $this->showIntro();
 437
 438                 if ( $this->mTitle->isTalkPage() ) {
 439                         $wgOut->addWikiMsg( 'talkpagetext' );
 440                 }
 441
 442                 # Optional notices on a per-namespace and per-page basis
 443                 $editnotice_ns   = 'editnotice-'.$this->mTitle->getNamespace();
 444                 if ( !wfEmptyMsg( $editnotice_ns, wfMsgForContent( $editnotice_ns ) ) ) {
 445                         $wgOut->addWikiText( wfMsgForContent( $editnotice_ns )  );
 446                 }
 447                 if ( MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
 448                         $parts = explode( '/', $this->mTitle->getDBkey() );
 449                         $editnotice_base = $editnotice_ns;
 450                         while ( count( $parts ) > 0 ) {
 451                                 $editnotice_base .= '-'.array_shift( $parts );
 452                                 if ( !wfEmptyMsg( $editnotice_base, wfMsgForContent( $editnotice_base ) ) ) {
 453                                         $wgOut->addWikiText( wfMsgForContent( $editnotice_base )  );
 454                                 }
 455                         }
 456                 }
 457
 458                 # Attempt submission here.  This will check for edit conflicts,
 459                 # and redundantly check for locked database, blocked IPs, etc.
 460                 # that edit() already checked just in case someone tries to sneak
 461                 # in the back door with a hand-edited submission URL.
 462
 463                 if ( 'save' == $this->formtype ) {
 464                         if ( !$this->attemptSave() ) {
 465                                 wfProfileOut( __METHOD__."-business-end" );
 466                                 wfProfileOut( __METHOD__ );
 467                                 return;
 468                         }
 469                 }
 470
 471                 # First time through: get contents, set time for conflict
 472                 # checking, etc.
 473                 if ( 'initial' == $this->formtype || $this->firsttime ) {
 474                         if ( $this->initialiseForm() === false ) {
 475                                 $this->noSuchSectionPage();
 476                                 wfProfileOut( __METHOD__."-business-end" );
 477                                 wfProfileOut( __METHOD__ );
 478                                 return;
 479                         }
 480                         if ( !$this->mTitle->getArticleId() )
 481                                 wfRunHooks( 'EditFormPreloadText', array( &$this->textbox1, &$this->mTitle ) );
 482                 }
 483
 484                 $this->showEditForm();
 485                 wfProfileOut( __METHOD__."-business-end" );
 486                 wfProfileOut( __METHOD__ );
 487         }
 488
 489         protected function getEditPermissionErrors() {
 490                 global $wgUser;
 491                 $permErrors = $this->mTitle->getUserPermissionsErrors( 'edit', $wgUser );
 492                 # Can this title be created?
 493                 if ( !$this->mTitle->exists() ) {
 494                         $permErrors = array_merge( $permErrors,
 495                                 wfArrayDiff2( $this->mTitle->getUserPermissionsErrors( 'create', $wgUser ), $permErrors ) );
 496                 }
 497                 # Ignore some permissions errors when a user is just previewing/viewing diffs
 498                 $remove = array();
 499                 foreach( $permErrors as $error ) {
 500                         if ( ( $this->preview || $this->diff ) &&
 501                                 ( $error[0] == 'blockedtext' || $error[0] == 'autoblockedtext' ) )
 502                         {
 503                                 $remove[] = $error;
 504                         }
 505                 }
 506                 $permErrors = wfArrayDiff2( $permErrors, $remove );
 507                 return $permErrors;
 508         }
 509
 510         /**
 511          * Show a read-only error
 512          * Parameters are the same as OutputPage:readOnlyPage()
 513          * Redirect to the article page if redlink=1
 514          */
 515         function readOnlyPage( $source = null, $protected = false, $reasons = array(), $action = null ) {
 516                 global $wgRequest, $wgOut;
 517                 if ( $wgRequest->getBool( 'redlink' ) ) {
 518                         // The edit page was reached via a red link.
 519                         // Redirect to the article page and let them click the edit tab if
 520                         // they really want a permission error.
 521                         $wgOut->redirect( $this->mTitle->getFullUrl() );
 522                 } else {
 523                         $wgOut->readOnlyPage( $source, $protected, $reasons, $action );
 524                 }
 525         }
 526
 527         /**
 528          * Should we show a preview when the edit form is first shown?
 529          *
 530          * @return bool
 531          */
 532         protected function previewOnOpen() {
 533                 global $wgRequest, $wgUser, $wgPreviewOnOpenNamespaces;
 534                 if ( $wgRequest->getVal( 'preview' ) == 'yes' ) {
 535                         // Explicit override from request
 536                         return true;
 537                 } elseif ( $wgRequest->getVal( 'preview' ) == 'no' ) {
 538                         // Explicit override from request
 539                         return false;
 540                 } elseif ( $this->section == 'new' ) {
 541                         // Nothing *to* preview for new sections
 542                         return false;
 543                 } elseif ( ( $wgRequest->getVal( 'preload' ) !== null || $this->mTitle->exists() ) && $wgUser->getOption( 'previewonfirst' ) ) {
 544                         // Standard preference behaviour
 545                         return true;
 546                 } elseif ( !$this->mTitle->exists() &&
 547                   isset($wgPreviewOnOpenNamespaces[$this->mTitle->getNamespace()]) &&
 548                   $wgPreviewOnOpenNamespaces[$this->mTitle->getNamespace()] )
 549                 {
 550                         // Categories are special
 551                         return true;
 552                 } else {
 553                         return false;
 554                 }
 555         }
 556
 557         /**
 558          * Does this EditPage class support section editing?
 559          * This is used by EditPage subclasses to indicate their ui cannot handle section edits
 560          *
 561          * @return bool
 562          */
 563         protected function isSectionEditSupported() {
 564                 return true;
 565         }
 566
 567         /**
 568          * Returns the URL to use in the form's action attribute.
 569          * This is used by EditPage subclasses when simply customizing the action
 570          * variable in the constructor is not enough. This can be used when the
 571          * EditPage lives inside of a Special page rather than a custom page action.
 572          *
 573          * @param Title $title The title for which is being edited (where we go to for &action= links)
 574          * @return string
 575          */
 576         protected function getActionURL( Title $title ) {
 577                 return $title->getLocalURL( array( 'action' => $this->action ) );
 578         }
 579
 580         /**
 581          * @todo document
 582          * @param $request
 583          */
 584         function importFormData( &$request ) {
 585                 global $wgLang, $wgUser;
 586
 587                 wfProfileIn( __METHOD__ );
 588
 589                 # Section edit can come from either the form or a link
 590                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 591
 592                 if ( $request->wasPosted() ) {
 593                         # These fields need to be checked for encoding.
 594                         # Also remove trailing whitespace, but don't remove _initial_
 595                         # whitespace from the text boxes. This may be significant formatting.
 596                         $this->textbox1 = $this->safeUnicodeInput( $request, 'wpTextbox1' );
 597                         if ( !$request->getCheck('wpTextbox2') ) {
 598                                 // Skip this if wpTextbox2 has input, it indicates that we came
 599                                 // from a conflict page with raw page text, not a custom form
 600                                 // modified by subclasses
 601                                 wfProfileIn( get_class($this)."::importContentFormData" );
 602                                 $textbox1 = $this->importContentFormData( $request );
 603                                 if ( isset($textbox1) )
 604                                         $this->textbox1 = $textbox1;
 605                                 wfProfileOut( get_class($this)."::importContentFormData" );
 606                         }
 607                         $this->mMetaData = rtrim( $request->getText( 'metadata' ) );
 608                         # Truncate for whole multibyte characters. +5 bytes for ellipsis
 609                         $this->summary = $wgLang->truncate( $request->getText( 'wpSummary' ), 250, '' );
 610
 611                         # Remove extra headings from summaries and new sections.
 612                         $this->summary = preg_replace('/^\s*=+\s*(.*?)\s*=+\s*$/', '$1', $this->summary);
 613
 614                         $this->edittime = $request->getVal( 'wpEdittime' );
 615                         $this->starttime = $request->getVal( 'wpStarttime' );
 616
 617                         $this->scrolltop = $request->getIntOrNull( 'wpScrolltop' );
 618
 619                         if ( is_null( $this->edittime ) ) {
 620                                 # If the form is incomplete, force to preview.
 621                                 wfDebug( __METHOD__ . ": Form data appears to be incomplete\n" );
 622                                 wfDebug( "POST DATA: " . var_export( $_POST, true ) . "\n" );
 623                                 $this->preview = true;
 624                         } else {
 625                                 /* Fallback for live preview */
 626                                 $this->preview = $request->getCheck( 'wpPreview' ) || $request->getCheck( 'wpLivePreview' );
 627                                 $this->diff = $request->getCheck( 'wpDiff' );
 628
 629                                 // Remember whether a save was requested, so we can indicate
 630                                 // if we forced preview due to session failure.
 631                                 $this->mTriedSave = !$this->preview;
 632
 633                                 if ( $this->tokenOk( $request ) ) {
 634                                         # Some browsers will not report any submit button
 635                                         # if the user hits enter in the comment box.
 636                                         # The unmarked state will be assumed to be a save,
 637                                         # if the form seems otherwise complete.
 638                                         wfDebug( __METHOD__ . ": Passed token check.\n" );
 639                                 } else if ( $this->diff ) {
 640                                         # Failed token check, but only requested "Show Changes".
 641                                         wfDebug( __METHOD__ . ": Failed token check; Show Changes requested.\n" );
 642                                 } else {
 643                                         # Page might be a hack attempt posted from
 644                                         # an external site. Preview instead of saving.
 645                                         wfDebug( __METHOD__ . ": Failed token check; forcing preview\n" );
 646                                         $this->preview = true;
 647                                 }
 648                         }
 649                         $this->save = !$this->preview && !$this->diff;
 650                         if ( !preg_match( '/^\d{14}$/', $this->edittime ) ) {
 651                                 $this->edittime = null;
 652                         }
 653
 654                         if ( !preg_match( '/^\d{14}$/', $this->starttime ) ) {
 655                                 $this->starttime = null;
 656                         }
 657
 658                         $this->recreate  = $request->getCheck( 'wpRecreate' );
 659
 660                         $this->minoredit = $request->getCheck( 'wpMinoredit' );
 661                         $this->watchthis = $request->getCheck( 'wpWatchthis' );
 662
 663                         # Don't force edit summaries when a user is editing their own user or talk page
 664                         if ( ( $this->mTitle->mNamespace == NS_USER || $this->mTitle->mNamespace == NS_USER_TALK ) &&
 665                                 $this->mTitle->getText() == $wgUser->getName() )
 666                         {
 667                                 $this->allowBlankSummary = true;
 668                         } else {
 669                                 $this->allowBlankSummary = $request->getBool( 'wpIgnoreBlankSummary' ) || !$wgUser->getOption( 'forceeditsummary');
 670                         }
 671
 672                         $this->autoSumm = $request->getText( 'wpAutoSummary' );
 673                 } else {
 674                         # Not a posted form? Start with nothing.
 675                         wfDebug( __METHOD__ . ": Not a posted form.\n" );
 676                         $this->textbox1  = '';
 677                         $this->mMetaData = '';
 678                         $this->summary   = '';
 679                         $this->edittime  = '';
 680                         $this->starttime = wfTimestampNow();
 681                         $this->edit      = false;
 682                         $this->preview   = false;
 683                         $this->save      = false;
 684                         $this->diff      = false;
 685                         $this->minoredit = false;
 686                         $this->watchthis = $request->getBool( 'watchthis', false ); // Watch may be overriden by request parameters
 687                         $this->recreate  = false;
 688
 689                         if ( $this->section == 'new' && $request->getVal( 'preloadtitle' ) ) {
 690                                 $this->summary = $request->getVal( 'preloadtitle' );
 691                         }
 692                         elseif ( $this->section != 'new' && $request->getVal( 'summary' ) ) {
 693                                 $this->summary = $request->getText( 'summary' );
 694                         }
 695
 696                         if ( $request->getVal( 'minor' ) ) {
 697                                 $this->minoredit = true;
 698                         }
 699                 }
 700
 701                 $this->bot = $request->getBool( 'bot', true );
 702                 $this->nosummary = $request->getBool( 'nosummary' );
 703
 704                 // FIXME: unused variable?
 705                 $this->oldid = $request->getInt( 'oldid' );
 706
 707                 $this->live = $request->getCheck( 'live' );
 708                 $this->editintro = $request->getText( 'editintro',
 709                         // Custom edit intro for new sections
 710                         $this->section === 'new' ? 'MediaWiki:addsection-editintro' : '' );
 711
 712                 wfProfileOut( __METHOD__ );
 713
 714                 // Allow extensions to modify form data
 715                 wfRunHooks( 'EditPage::importFormData', array( $this, $request ) );
 716         }
 717
 718         /**
 719          * Subpage overridable method for extracting the page content data from the
 720          * posted form to be placed in $this->textbox1, if using customized input
 721          * this method should be overrided and return the page text that will be used
 722          * for saving, preview parsing and so on...
 723          *
 724          * @praram WebRequest $request
 725          */
 726         protected function importContentFormData( &$request ) {
 727                 return; // Don't do anything, EditPage already extracted wpTextbox1
 728         }
 729
 730         /**
 731          * Make sure the form isn't faking a user's credentials.
 732          *
 733          * @param $request WebRequest
 734          * @return bool
 735          * @private
 736          */
 737         function tokenOk( &$request ) {
 738                 global $wgUser;
 739                 $token = $request->getVal( 'wpEditToken' );
 740                 $this->mTokenOk = $wgUser->matchEditToken( $token );
 741                 $this->mTokenOkExceptSuffix = $wgUser->matchEditTokenNoSuffix( $token );
 742                 return $this->mTokenOk;
 743         }
 744
 745         /**
 746          * Show all applicable editing introductions
 747          */
 748         protected function showIntro() {
 749                 global $wgOut, $wgUser;
 750                 if ( $this->suppressIntro ) {
 751                         return;
 752                 }
 753
 754                 $namespace = $this->mTitle->getNamespace();
 755
 756                 if ( $namespace == NS_MEDIAWIKI ) {
 757                         # Show a warning if editing an interface message
 758                         $wgOut->wrapWikiMsg( "<div class='mw-editinginterface'>\n$1</div>", 'editinginterface' );
 759                 }
 760
 761                 # Show a warning message when someone creates/edits a user (talk) page but the user does not exists
 762                 if ( $namespace == NS_USER || $namespace == NS_USER_TALK ) {
 763                         $parts = explode( '/', $this->mTitle->getText(), 2 );
 764                         $username = $parts[0];
 765                         $id = User::idFromName( $username );
 766                         $ip = User::isIP( $username );
 767                         if ( $id == 0 && !$ip ) {
 768                                 $wgOut->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n$1</div>",
 769                                         array( 'userpage-userdoesnotexist', $username ) );
 770                         }
 771                 }
 772                 # Try to add a custom edit intro, or use the standard one if this is not possible.
 773                 if ( !$this->showCustomIntro() && !$this->mTitle->exists() ) {
 774                         if ( $wgUser->isLoggedIn() ) {
 775                                 $wgOut->wrapWikiMsg( "<div class=\"mw-newarticletext\">\n$1</div>", 'newarticletext' );
 776                         } else {
 777                                 $wgOut->wrapWikiMsg( "<div class=\"mw-newarticletextanon\">\n$1</div>", 'newarticletextanon' );
 778                         }
 779                 }
 780                 # Give a notice if the user is editing a deleted/moved page...
 781                 if ( !$this->mTitle->exists() ) {
 782                         LogEventsList::showLogExtract( $wgOut, array( 'delete', 'move' ), $this->mTitle->getPrefixedText(),
 783                                 '', array( 'lim' => 10,
 784                                            'conds' => array( "log_action != 'revision'" ),
 785                                            'showIfEmpty' => false,
 786                                            'msgKey' => array( 'recreate-moveddeleted-warn') )
 787                         );
 788                 }
 789         }
 790
 791         /**
 792          * Attempt to show a custom editing introduction, if supplied
 793          *
 794          * @return bool
 795          */
 796         protected function showCustomIntro() {
 797                 if ( $this->editintro ) {
 798                         $title = Title::newFromText( $this->editintro );
 799                         if ( $title instanceof Title && $title->exists() && $title->userCanRead() ) {
 800                                 global $wgOut;
 801                                 $revision = Revision::newFromTitle( $title );
 802                                 $wgOut->addWikiTextTitleTidy( $revision->getText(), $this->mTitle );
 803                                 return true;
 804                         } else {
 805                                 return false;
 806                         }
 807                 } else {
 808                         return false;
 809                 }
 810         }
 811
 812         /**
 813          * Attempt submission (no UI)
 814          * @return one of the constants describing the result
 815          */
 816         function internalAttemptSave( &$result, $bot = false ) {
 817                 global $wgFilterCallback, $wgUser, $wgOut, $wgParser;
 818                 global $wgMaxArticleSize;
 819
 820                 wfProfileIn( __METHOD__  );
 821                 wfProfileIn( __METHOD__ . '-checks' );
 822
 823                 if ( !wfRunHooks( 'EditPage::attemptSave', array( $this ) ) )
 824                 {
 825                         wfDebug( "Hook 'EditPage::attemptSave' aborted article saving\n" );
 826                         return self::AS_HOOK_ERROR;
 827                 }
 828
 829                 # Check image redirect
 830                 if ( $this->mTitle->getNamespace() == NS_FILE &&
 831                         Title::newFromRedirect( $this->textbox1 ) instanceof Title &&
 832                         !$wgUser->isAllowed( 'upload' ) ) {
 833                                 if ( $wgUser->isAnon() ) {
 834                                         return self::AS_IMAGE_REDIRECT_ANON;
 835                                 } else {
 836                                         return self::AS_IMAGE_REDIRECT_LOGGED;
 837                                 }
 838                 }
 839
 840                 # Reintegrate metadata
 841                 if ( $this->mMetaData != '' ) $this->textbox1 .= "\n" . $this->mMetaData ;
 842                 $this->mMetaData = '' ;
 843
 844                 # Check for spam
 845                 $match = self::matchSummarySpamRegex( $this->summary );
 846                 if ( $match === false ) {
 847                         $match = self::matchSpamRegex( $this->textbox1 );
 848                 }
 849                 if ( $match !== false ) {
 850                         $result['spam'] = $match;
 851                         $ip = wfGetIP();
 852                         $pdbk = $this->mTitle->getPrefixedDBkey();
 853                         $match = str_replace( "\n", '', $match );
 854                         wfDebugLog( 'SpamRegex', "$ip spam regex hit [[$pdbk]]: \"$match\"" );
 855                         wfProfileOut( __METHOD__ . '-checks' );
 856                         wfProfileOut( __METHOD__ );
 857                         return self::AS_SPAM_ERROR;
 858                 }
 859                 if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section, $this->hookError, $this->summary ) ) {
 860                         # Error messages or other handling should be performed by the filter function
 861                         wfProfileOut( __METHOD__ . '-checks' );
 862                         wfProfileOut( __METHOD__ );
 863                         return self::AS_FILTERING;
 864                 }
 865                 if ( !wfRunHooks( 'EditFilter', array( $this, $this->textbox1, $this->section, &$this->hookError, $this->summary ) ) ) {
 866                         # Error messages etc. could be handled within the hook...
 867                         wfProfileOut( __METHOD__ . '-checks' );
 868                         wfProfileOut( __METHOD__ );
 869                         return self::AS_HOOK_ERROR;
 870                 } elseif ( $this->hookError != '' ) {
 871                         # ...or the hook could be expecting us to produce an error
 872                         wfProfileOut( __METHOD__ . '-checks' );
 873                         wfProfileOut( __METHOD__ );
 874                         return self::AS_HOOK_ERROR_EXPECTED;
 875                 }
 876                 if ( $wgUser->isBlockedFrom( $this->mTitle, false ) ) {
 877                         # Check block state against master, thus 'false'.
 878                         wfProfileOut( __METHOD__ . '-checks' );
 879                         wfProfileOut( __METHOD__ );
 880                         return self::AS_BLOCKED_PAGE_FOR_USER;
 881                 }
 882                 $this->kblength = (int)( strlen( $this->textbox1 ) / 1024 );
 883                 if ( $this->kblength > $wgMaxArticleSize ) {
 884                         // Error will be displayed by showEditForm()
 885                         $this->tooBig = true;
 886                         wfProfileOut( __METHOD__ . '-checks' );
 887                         wfProfileOut( __METHOD__ );
 888                         return self::AS_CONTENT_TOO_BIG;
 889                 }
 890
 891                 if ( !$wgUser->isAllowed( 'edit' ) ) {
 892                         if ( $wgUser->isAnon() ) {
 893                                 wfProfileOut( __METHOD__ . '-checks' );
 894                                 wfProfileOut( __METHOD__ );
 895                                 return self::AS_READ_ONLY_PAGE_ANON;
 896                         } else {
 897                                 wfProfileOut( __METHOD__ . '-checks' );
 898                                 wfProfileOut( __METHOD__ );
 899                                 return self::AS_READ_ONLY_PAGE_LOGGED;
 900                         }
 901                 }
 902
 903                 if ( wfReadOnly() ) {
 904                         wfProfileOut( __METHOD__ . '-checks' );
 905                         wfProfileOut( __METHOD__ );
 906                         return self::AS_READ_ONLY_PAGE;
 907                 }
 908                 if ( $wgUser->pingLimiter() ) {
 909                         wfProfileOut( __METHOD__ . '-checks' );
 910                         wfProfileOut( __METHOD__ );
 911                         return self::AS_RATE_LIMITED;
 912                 }
 913
 914                 # If the article has been deleted while editing, don't save it without
 915                 # confirmation
 916                 if ( $this->wasDeletedSinceLastEdit() && !$this->recreate ) {
 917                         wfProfileOut( __METHOD__ . '-checks' );
 918                         wfProfileOut( __METHOD__ );
 919                         return self::AS_ARTICLE_WAS_DELETED;
 920                 }
 921
 922                 wfProfileOut( __METHOD__ . '-checks' );
 923
 924                 # If article is new, insert it.
 925                 $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 926                 if ( 0 == $aid ) {
 927                         // Late check for create permission, just in case *PARANOIA*
 928                         if ( !$this->mTitle->userCan( 'create' ) ) {
 929                                 wfDebug( __METHOD__ . ": no create permission\n" );
 930                                 wfProfileOut( __METHOD__ );
 931                                 return self::AS_NO_CREATE_PERMISSION;
 932                         }
 933
 934                         # Don't save a new article if it's blank.
 935                         if ( $this->textbox1 == '' ) {
 936                                 wfProfileOut( __METHOD__ );
 937                                 return self::AS_BLANK_ARTICLE;
 938                         }
 939
 940                         // Run post-section-merge edit filter
 941                         if ( !wfRunHooks( 'EditFilterMerged', array( $this, $this->textbox1, &$this->hookError, $this->summary ) ) ) {
 942                                 # Error messages etc. could be handled within the hook...
 943                                 wfProfileOut( __METHOD__ );
 944                                 return self::AS_HOOK_ERROR;
 945                         } elseif ( $this->hookError != '' ) {
 946                                 # ...or the hook could be expecting us to produce an error
 947                                 wfProfileOut( __METHOD__ );
 948                                 return self::AS_HOOK_ERROR_EXPECTED;
 949                         }
 950
 951                         # Handle the user preference to force summaries here. Check if it's not a redirect.
 952                         if ( !$this->allowBlankSummary && !Title::newFromRedirect( $this->textbox1 ) ) {
 953                                 if ( md5( $this->summary ) == $this->autoSumm ) {
 954                                         $this->missingSummary = true;
 955                                         wfProfileOut( __METHOD__ );
 956                                         return self::AS_SUMMARY_NEEDED;
 957                                 }
 958                         }
 959
 960                         $isComment = ( $this->section == 'new' );
 961
 962                         $this->mArticle->insertNewArticle( $this->textbox1, $this->summary,
 963                                 $this->minoredit, $this->watchthis, false, $isComment, $bot );
 964
 965                         wfProfileOut( __METHOD__ );
 966                         return self::AS_SUCCESS_NEW_ARTICLE;
 967                 }
 968
 969                 # Article exists. Check for edit conflict.
 970
 971                 $this->mArticle->clear(); # Force reload of dates, etc.
 972                 $this->mArticle->forUpdate( true ); # Lock the article
 973
 974                 wfDebug( "timestamp: {$this->mArticle->getTimestamp()}, edittime: {$this->edittime}\n" );
 975
 976                 if ( $this->mArticle->getTimestamp() != $this->edittime ) {
 977                         $this->isConflict = true;
 978                         if ( $this->section == 'new' ) {
 979                                 if ( $this->mArticle->getUserText() == $wgUser->getName() &&
 980                                         $this->mArticle->getComment() == $this->summary ) {
 981                                         // Probably a duplicate submission of a new comment.
 982                                         // This can happen when squid resends a request after
 983                                         // a timeout but the first one actually went through.
 984                                         wfDebug( __METHOD__ . ": duplicate new section submission; trigger edit conflict!\n" );
 985                                 } else {
 986                                         // New comment; suppress conflict.
 987                                         $this->isConflict = false;
 988                                         wfDebug( __METHOD__ .": conflict suppressed; new section\n" );
 989                                 }
 990                         }
 991                 }
 992                 $userid = $wgUser->getId();
 993
 994                 # Suppress edit conflict with self, except for section edits where merging is required.
 995                 if ( $this->isConflict && $this->section == '' && $this->userWasLastToEdit( $userid, $this->edittime ) ) {
 996                         wfDebug( __METHOD__ . ": Suppressing edit conflict, same user.\n" );
 997                         $this->isConflict = false;
 998                 }
 999
1000                 if ( $this->isConflict ) {
1001                         wfDebug( __METHOD__ . ": conflict! getting section '$this->section' for time '$this->edittime' (article time '" .
1002                                 $this->mArticle->getTimestamp() . "')\n" );
1003                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary, $this->edittime );
1004                 } else {
1005                         wfDebug( __METHOD__ . ": getting section '$this->section'\n" );
1006                         $text = $this->mArticle->replaceSection( $this->section, $this->textbox1, $this->summary );
1007                 }
1008                 if ( is_null( $text ) ) {
1009                         wfDebug( __METHOD__ . ": activating conflict; section replace failed.\n" );
1010                         $this->isConflict = true;
1011                         $text = $this->textbox1; // do not try to merge here!
1012                 } else if ( $this->isConflict ) {
1013                         # Attempt merge
1014                         if ( $this->mergeChangesInto( $text ) ) {
1015                                 // Successful merge! Maybe we should tell the user the good news?
1016                                 $this->isConflict = false;
1017                                 wfDebug( __METHOD__ . ": Suppressing edit conflict, successful merge.\n" );
1018                         } else {
1019                                 $this->section = '';
1020                                 $this->textbox1 = $text;
1021                                 wfDebug( __METHOD__ . ": Keeping edit conflict, failed merge.\n" );
1022                         }
1023                 }
1024
1025                 if ( $this->isConflict ) {
1026                         wfProfileOut( __METHOD__ );
1027                         return self::AS_CONFLICT_DETECTED;
1028                 }
1029
1030                 $oldtext = $this->mArticle->getContent();
1031
1032                 // Run post-section-merge edit filter
1033                 if ( !wfRunHooks( 'EditFilterMerged', array( $this, $text, &$this->hookError, $this->summary ) ) ) {
1034                         # Error messages etc. could be handled within the hook...
1035                         wfProfileOut( __METHOD__ );
1036                         return self::AS_HOOK_ERROR;
1037                 } elseif ( $this->hookError != '' ) {
1038                         # ...or the hook could be expecting us to produce an error
1039                         wfProfileOut( __METHOD__ );
1040                         return self::AS_HOOK_ERROR_EXPECTED;
1041                 }
1042
1043                 # Handle the user preference to force summaries here, but not for null edits
1044                 if ( $this->section != 'new' && !$this->allowBlankSummary && 0 != strcmp( $oldtext, $text )
1045                         && !Title::newFromRedirect( $text ) ) # check if it's not a redirect
1046                 {
1047                         if ( md5( $this->summary ) == $this->autoSumm ) {
1048                                 $this->missingSummary = true;
1049                                 wfProfileOut( __METHOD__ );
1050                                 return self::AS_SUMMARY_NEEDED;
1051                         }
1052                 }
1053
1054                 # And a similar thing for new sections
1055                 if ( $this->section == 'new' && !$this->allowBlankSummary ) {
1056                         if ( trim( $this->summary ) == '' ) {
1057                                 $this->missingSummary = true;
1058                                 wfProfileOut( __METHOD__ );
1059                                 return self::AS_SUMMARY_NEEDED;
1060                         }
1061                 }
1062
1063                 # All's well
1064                 wfProfileIn( __METHOD__ . '-sectionanchor' );
1065                 $sectionanchor = '';
1066                 if ( $this->section == 'new' ) {
1067                         if ( $this->textbox1 == '' ) {
1068                                 $this->missingComment = true;
1069                                 wfProfileOut( __METHOD__ . '-sectionanchor' );
1070                                 wfProfileOut( __METHOD__ );
1071                                 return self::AS_TEXTBOX_EMPTY;
1072                         }
1073                         if ( $this->summary != '' ) {
1074                                 $sectionanchor = $wgParser->guessSectionNameFromWikiText( $this->summary );
1075                                 # This is a new section, so create a link to the new section
1076                                 # in the revision summary.
1077                                 $cleanSummary = $wgParser->stripSectionName( $this->summary );
1078                                 $this->summary = wfMsgForContent( 'newsectionsummary', $cleanSummary );
1079                         }
1080                 } elseif ( $this->section != '' ) {
1081                         # Try to get a section anchor from the section source, redirect to edited section if header found
1082                         # XXX: might be better to integrate this into Article::replaceSection
1083                         # for duplicate heading checking and maybe parsing
1084                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
1085                         # we can't deal with anchors, includes, html etc in the header for now,
1086                         # headline would need to be parsed to improve this
1087                         if ( $hasmatch and strlen( $matches[2] ) > 0 ) {
1088                                 $sectionanchor = $wgParser->guessSectionNameFromWikiText( $matches[2] );
1089                         }
1090                 }
1091                 wfProfileOut( __METHOD__ . '-sectionanchor' );
1092
1093                 // Save errors may fall down to the edit form, but we've now
1094                 // merged the section into full text. Clear the section field
1095                 // so that later submission of conflict forms won't try to
1096                 // replace that into a duplicated mess.
1097                 $this->textbox1 = $text;
1098                 $this->section = '';
1099
1100                 // Check for length errors again now that the section is merged in
1101                 $this->kblength = (int)( strlen( $text ) / 1024 );
1102                 if ( $this->kblength > $wgMaxArticleSize ) {
1103                         $this->tooBig = true;
1104                         wfProfileOut( __METHOD__ );
1105                         return self::AS_MAX_ARTICLE_SIZE_EXCEEDED;
1106                 }
1107
1108                 # update the article here
1109                 if ( $this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
1110                         $this->watchthis, $bot, $sectionanchor ) )
1111                 {
1112                         wfProfileOut( __METHOD__ );
1113                         return self::AS_SUCCESS_UPDATE;
1114                 } else {
1115                         $this->isConflict = true;
1116                 }
1117                 wfProfileOut( __METHOD__ );
1118                 return self::AS_END;
1119         }
1120
1121         /**
1122          * Check if no edits were made by other users since
1123          * the time a user started editing the page. Limit to
1124          * 50 revisions for the sake of performance.
1125          */
1126         protected function userWasLastToEdit( $id, $edittime ) {
1127                 if( !$id ) return false;
1128                 $dbw = wfGetDB( DB_MASTER );
1129                 $res = $dbw->select( 'revision',
1130                         'rev_user',
1131                         array(
1132                                 'rev_page' => $this->mArticle->getId(),
1133                                 'rev_timestamp > '.$dbw->addQuotes( $dbw->timestamp($edittime) )
1134                         ),
1135                         __METHOD__,
1136                         array( 'ORDER BY' => 'rev_timestamp ASC', 'LIMIT' => 50 ) );
1137                 while( $row = $res->fetchObject() ) {
1138                         if( $row->rev_user != $id ) {
1139                                 return false;
1140                         }
1141                 }
1142                 return true;
1143         }
1144
1145         /**
1146          * Check given input text against $wgSpamRegex, and return the text of the first match.
1147          * @return mixed -- matching string or false
1148          */
1149         public static function matchSpamRegex( $text ) {
1150                 global $wgSpamRegex;
1151                 // For back compatibility, $wgSpamRegex may be a single string or an array of regexes.
1152                 $regexes = (array)$wgSpamRegex;
1153                 return self::matchSpamRegexInternal( $text, $regexes );
1154         }
1155
1156         /**
1157          * Check given input text against $wgSpamRegex, and return the text of the first match.
1158          * @return mixed -- matching string or false
1159          */
1160         public static function matchSummarySpamRegex( $text ) {
1161                 global $wgSummarySpamRegex;
1162                 $regexes = (array)$wgSummarySpamRegex;
1163                 return self::matchSpamRegexInternal( $text, $regexes );
1164         }
1165
1166         protected static function matchSpamRegexInternal( $text, $regexes ) {
1167                 foreach( $regexes as $regex ) {
1168                         $matches = array();
1169                         if( preg_match( $regex, $text, $matches ) ) {
1170                                 return $matches[0];
1171                         }
1172                 }
1173                 return false;
1174         }
1175
1176         /**
1177          * Initialise form fields in the object
1178          * Called on the first invocation, e.g. when a user clicks an edit link
1179          * @returns bool -- if the requested section is valid
1180          */
1181         function initialiseForm() {
1182                 global $wgUser;
1183                 $this->edittime = $this->mArticle->getTimestamp();
1184                 $this->textbox1 = $this->getContent( false );
1185                 // activate checkboxes if user wants them to be always active
1186                 # Sort out the "watch" checkbox
1187                 if ( $wgUser->getOption( 'watchdefault' ) ) {
1188                         # Watch all edits
1189                         $this->watchthis = true;
1190                 } elseif ( $wgUser->getOption( 'watchcreations' ) && !$this->mTitle->exists() ) {
1191                         # Watch creations
1192                         $this->watchthis = true;
1193                 } elseif ( $this->mTitle->userIsWatching() ) {
1194                         # Already watched
1195                         $this->watchthis = true;
1196                 }
1197                 if ( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
1198                 if ( $this->textbox1 === false ) return false;
1199                 wfProxyCheck();
1200                 return true;
1201         }
1202
1203         function setHeaders() {
1204                 global $wgOut, $wgTitle;
1205                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1206                 if ( $this->formtype == 'preview' ) {
1207                         $wgOut->setPageTitleActionText( wfMsg( 'preview' ) );
1208                 }
1209                 if ( $this->isConflict ) {
1210                         $wgOut->setPageTitle( wfMsg( 'editconflict', $wgTitle->getPrefixedText() ) );
1211                 } elseif ( $this->section != '' ) {
1212                         $msg = $this->section == 'new' ? 'editingcomment' : 'editingsection';
1213                         $wgOut->setPageTitle( wfMsg( $msg, $wgTitle->getPrefixedText() ) );
1214                 } else {
1215                         # Use the title defined by DISPLAYTITLE magic word when present
1216                         if ( isset( $this->mParserOutput )
1217                          && ( $dt = $this->mParserOutput->getDisplayTitle() ) !== false ) {
1218                                 $title = $dt;
1219                         } else {
1220                                 $title = $wgTitle->getPrefixedText();
1221                         }
1222                         $wgOut->setPageTitle( wfMsg( 'editing', $title ) );
1223                 }
1224         }
1225
1226         /**
1227          * Send the edit form and related headers to $wgOut
1228          * @param $formCallback Optional callable that takes an OutputPage
1229          *                      parameter; will be called during form output
1230          *                      near the top, for captchas and the like.
1231          */
1232         function showEditForm( $formCallback=null ) {
1233                 global $wgOut, $wgUser, $wgTitle;
1234
1235                 # If $wgTitle is null, that means we're in API mode.
1236                 # Some hook probably called this function  without checking
1237                 # for is_null($wgTitle) first. Bail out right here so we don't
1238                 # do lots of work just to discard it right after.
1239                 if ( is_null( $wgTitle ) )
1240                         return;
1241
1242                 wfProfileIn( __METHOD__ );
1243
1244                 $sk = $wgUser->getSkin();
1245
1246                 #need to parse the preview early so that we know which templates are used,
1247                 #otherwise users with "show preview after edit box" will get a blank list
1248                 #we parse this near the beginning so that setHeaders can do the title
1249                 #setting work instead of leaving it in getPreviewText
1250                 $previewOutput = '';
1251                 if ( $this->formtype == 'preview' ) {
1252                         $previewOutput = $this->getPreviewText();
1253                 }
1254
1255                 wfRunHooks( 'EditPage::showEditForm:initial', array( &$this ) );
1256
1257                 $this->setHeaders();
1258
1259                 # Enabled article-related sidebar, toplinks, etc.
1260                 $wgOut->setArticleRelated( true );
1261
1262                 if ( $this->showHeader() === false )
1263                         return;
1264
1265                 $action = htmlspecialchars($this->getActionURL($wgTitle));
1266
1267                 if ( $wgUser->getOption( 'showtoolbar' ) and !$this->isCssJsSubpage ) {
1268                         # prepare toolbar for edit buttons
1269                         $toolbar = EditPage::getEditToolbar();
1270                 } else {
1271                         $toolbar = '';
1272                 }
1273
1274
1275                 $wgOut->addHTML( $this->editFormPageTop );
1276
1277                 if ( $wgUser->getOption( 'previewontop' ) ) {
1278                         $this->displayPreviewArea( $previewOutput, true );
1279                 }
1280
1281                 $wgOut->addHTML( $this->editFormTextTop );
1282
1283                 $templates = $this->getTemplates();
1284                 $formattedtemplates = $sk->formatTemplates( $templates, $this->preview, $this->section != '');
1285
1286                 $hiddencats = $this->mArticle->getHiddenCategories();
1287                 $formattedhiddencats = $sk->formatHiddenCategories( $hiddencats );
1288
1289                 if ( $this->wasDeletedSinceLastEdit() && 'save' != $this->formtype ) {
1290                         $wgOut->wrapWikiMsg(
1291                                 "<div class='error mw-deleted-while-editing'>\n$1</div>",
1292                                 'deletedwhileediting' );
1293                 } elseif ( $this->wasDeletedSinceLastEdit() ) {
1294                         // Hide the toolbar and edit area, user can click preview to get it back
1295                         // Add an confirmation checkbox and explanation.
1296                         $toolbar = '';
1297                         // @todo move this to a cleaner conditional instead of blanking a variable
1298                 }
1299                 $wgOut->addHTML( <<<HTML
1300 {$toolbar}
1301 <form id="editform" name="editform" method="post" action="$action" enctype="multipart/form-data">
1302 HTML
1303 );
1304
1305                 if ( is_callable( $formCallback ) ) {
1306                         call_user_func_array( $formCallback, array( &$wgOut ) );
1307                 }
1308
1309                 wfRunHooks( 'EditPage::showEditForm:fields', array( &$this, &$wgOut ) );
1310
1311                 // Put these up at the top to ensure they aren't lost on early form submission
1312                 $this->showFormBeforeText();
1313
1314                 if ( $this->wasDeletedSinceLastEdit() && 'save' == $this->formtype ) {
1315                         $wgOut->addHTML(
1316                                 '<div class="mw-confirm-recreate">' .
1317                                 $wgOut->parse( wfMsg( 'confirmrecreate',  $this->lastDelete->user_name , $this->lastDelete->log_comment ) ) .
1318                                 Xml::checkLabel( wfMsg( 'recreate' ), 'wpRecreate', 'wpRecreate', false,
1319                                         array( 'title' => $sk->titleAttrib( 'recreate' ), 'tabindex' => 1, 'id' => 'wpRecreate' )
1320                                 ) .
1321                                 '</div>'
1322                         );
1323                 }
1324
1325                 # If a blank edit summary was previously provided, and the appropriate
1326                 # user preference is active, pass a hidden tag as wpIgnoreBlankSummary. This will stop the
1327                 # user being bounced back more than once in the event that a summary
1328                 # is not required.
1329                 #####
1330                 # For a bit more sophisticated detection of blank summaries, hash the
1331                 # automatic one and pass that in the hidden field wpAutoSummary.
1332                 if ( $this->missingSummary ||
1333                         ( $this->section == 'new' && $this->nosummary ) )
1334                                 $wgOut->addHTML( Xml::hidden( 'wpIgnoreBlankSummary', true ) );
1335                 $autosumm = $this->autoSumm ? $this->autoSumm : md5( $this->summary );
1336                 $wgOut->addHTML( Xml::hidden( 'wpAutoSummary', $autosumm ) );
1337
1338                 $wgOut->addHTML( Xml::hidden( 'oldid', $this->mArticle->getOldID() ) );
1339
1340                 if ( $this->section == 'new' ) {
1341                         $this->showSummaryInput( true, $this->summary );
1342                         $wgOut->addHTML( $this->getSummaryPreview( true, $this->summary ) );
1343                 }
1344
1345                 $wgOut->addHTML( $this->editFormTextBeforeContent );
1346
1347                 if ( $this->isConflict ) {
1348                         // In an edit conflict bypass the overrideable content form method
1349                         // and fallback to the raw wpTextbox1 since editconflicts can't be
1350                         // resolved between page source edits and custom ui edits using the
1351                         // custom edit ui.
1352                         $this->showTextbox1();
1353                 } else {
1354                         $this->showContentForm();
1355                 }
1356
1357                 $wgOut->addHTML( $this->editFormTextAfterContent );
1358
1359                 $wgOut->addWikiText( $this->getCopywarn() );
1360                 if ( isset($this->editFormTextAfterWarn) && $this->editFormTextAfterWarn !== '' )
1361                         $wgOut->addHTML( $this->editFormTextAfterWarn );
1362
1363                 global $wgUseMetadataEdit;
1364                 if ( $wgUseMetadataEdit )
1365                         $this->showMetaData();
1366
1367                 $this->showStandardInputs();
1368
1369                 $this->showFormAfterText();
1370
1371                 $this->showTosSummary();
1372                 $this->showEditTools();
1373
1374                 $wgOut->addHTML( <<<HTML
1375 {$this->editFormTextAfterTools}
1376 <div class='templatesUsed'>
1377 {$formattedtemplates}
1378 </div>
1379 <div class='hiddencats'>
1380 {$formattedhiddencats}
1381 </div>
1382 HTML
1383 );
1384
1385                 if ( $this->isConflict )
1386                         $this->showConflict();
1387
1388                 $wgOut->addHTML( $this->editFormTextBottom );
1389                 $wgOut->addHTML( "</form>\n" );
1390                 if ( !$wgUser->getOption( 'previewontop' ) ) {
1391                         $this->displayPreviewArea( $previewOutput, false );
1392                 }
1393
1394                 wfProfileOut( __METHOD__ );
1395         }
1396
1397         protected function showHeader() {
1398                 global $wgOut, $wgUser, $wgTitle, $wgMaxArticleSize, $wgLang;
1399                 if ( $this->isConflict ) {
1400                         $wgOut->wrapWikiMsg( "<div class='mw-explainconflict'>\n$1</div>", 'explainconflict' );
1401                         $this->edittime = $this->mArticle->getTimestamp();
1402                 } else {
1403                         if ( $this->section != '' && !$this->isSectionEditSupported() ) {
1404                                 // We use $this->section to much before this and getVal('wgSection') directly in other places
1405                                 // at this point we can't reset $this->section to '' to fallback to non-section editing.
1406                                 // Someone is welcome to try refactoring though
1407                                 $wgOut->showErrorPage( 'sectioneditnotsupported-title', 'sectioneditnotsupported-text' );
1408                                 return false;
1409                         }
1410
1411                         if ( $this->section != '' && $this->section != 'new' ) {
1412                                 $matches = array();
1413                                 if ( !$this->summary && !$this->preview && !$this->diff ) {
1414                                         preg_match( "/^(=+)(.+)\\1/mi", $this->textbox1, $matches );
1415                                         if ( !empty( $matches[2] ) ) {
1416                                                 global $wgParser;
1417                                                 $this->summary = "/* " .
1418                                                         $wgParser->stripSectionName(trim($matches[2])) .
1419                                                         " */ ";
1420                                         }
1421                                 }
1422                         }
1423
1424                         if ( $this->missingComment ) {
1425                                 $wgOut->wrapWikiMsg( "<div id='mw-missingcommenttext'>\n$1</div>", 'missingcommenttext' );
1426                         }
1427
1428                         if ( $this->missingSummary && $this->section != 'new' ) {
1429                                 $wgOut->wrapWikiMsg( "<div id='mw-missingsummary'>\n$1</div>", 'missingsummary' );
1430                         }
1431
1432                         if ( $this->missingSummary && $this->section == 'new' ) {
1433                                 $wgOut->wrapWikiMsg( "<div id='mw-missingcommentheader'>\n$1</div>", 'missingcommentheader' );
1434                         }
1435
1436                         if ( $this->hookError !== '' ) {
1437                                 $wgOut->addWikiText( $this->hookError );
1438                         }
1439
1440                         if ( !$this->checkUnicodeCompliantBrowser() ) {
1441                                 $wgOut->addWikiMsg( 'nonunicodebrowser' );
1442                         }
1443
1444                         if ( isset( $this->mArticle ) && isset( $this->mArticle->mRevision ) ) {
1445                         // Let sysop know that this will make private content public if saved
1446
1447                                 if ( !$this->mArticle->mRevision->userCan( Revision::DELETED_TEXT ) ) {
1448                                         $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n", 'rev-deleted-text-permission' );
1449                                 } else if ( $this->mArticle->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
1450                                         $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n", 'rev-deleted-text-view' );
1451                                 }
1452
1453                                 if ( !$this->mArticle->mRevision->isCurrent() ) {
1454                                         $this->mArticle->setOldSubtitle( $this->mArticle->mRevision->getId() );
1455                                         $wgOut->addWikiMsg( 'editingold' );
1456                                 }
1457                         }
1458                 }
1459
1460                 if ( wfReadOnly() ) {
1461                         $wgOut->wrapWikiMsg( "<div id=\"mw-read-only-warning\">\n$1\n</div>", array( 'readonlywarning', wfReadOnlyReason() ) );
1462                 } elseif ( $wgUser->isAnon() && $this->formtype != 'preview' ) {
1463                         $wgOut->wrapWikiMsg( "<div id=\"mw-anon-edit-warning\">\n$1</div>", 'anoneditwarning' );
1464                 } else {
1465                         if ( $this->isCssJsSubpage ) {
1466                                 # Check the skin exists
1467                                 if ( !$this->isValidCssJsSubpage ) {
1468                                         $wgOut->addWikiMsg( 'userinvalidcssjstitle', $wgTitle->getSkinFromCssJsSubpage() );
1469                                 }
1470                                 if ( $this->formtype !== 'preview' ) {
1471                                         if ( $this->isCssSubpage )
1472                                                 $wgOut->addWikiMsg( 'usercssyoucanpreview' );
1473                                         if ( $this->isJsSubpage )
1474                                                 $wgOut->addWikiMsg( 'userjsyoucanpreview' );
1475                                 }
1476                         }
1477                 }
1478
1479                 if ( $this->mTitle->getNamespace() != NS_MEDIAWIKI && $this->mTitle->isProtected( 'edit' ) ) {
1480                         # Is the title semi-protected?
1481                         if ( $this->mTitle->isSemiProtected() ) {
1482                                 $noticeMsg = 'semiprotectedpagewarning';
1483                         } else {
1484                                 # Then it must be protected based on static groups (regular)
1485                                 $noticeMsg = 'protectedpagewarning';
1486                         }
1487                         LogEventsList::showLogExtract( $wgOut, 'protect', $this->mTitle->getPrefixedText(), '',
1488                                 array( 'lim' => 1, 'msgKey' => array( $noticeMsg ) ) );
1489                 }
1490                 if ( $this->mTitle->isCascadeProtected() ) {
1491                         # Is this page under cascading protection from some source pages?
1492                         list($cascadeSources, /* $restrictions */) = $this->mTitle->getCascadeProtectionSources();
1493                         $notice = "<div class='mw-cascadeprotectedwarning'>\n$1\n";
1494                         $cascadeSourcesCount = count( $cascadeSources );
1495                         if ( $cascadeSourcesCount > 0 ) {
1496                                 # Explain, and list the titles responsible
1497                                 foreach( $cascadeSources as $page ) {
1498                                         $notice .= '* [[:' . $page->getPrefixedText() . "]]\n";
1499                                 }
1500                         }
1501                         $notice .= '</div>';
1502                         $wgOut->wrapWikiMsg( $notice, array( 'cascadeprotectedwarning', $cascadeSourcesCount ) );
1503                 }
1504                 if ( !$this->mTitle->exists() && $this->mTitle->getRestrictions( 'create' ) ) {
1505                         LogEventsList::showLogExtract( $wgOut, 'protect', $this->mTitle->getPrefixedText(), '',
1506                                 array(  'lim' => 1,
1507                                         'showIfEmpty' => false,
1508                                         'msgKey' => array( 'titleprotectedwarning' ),
1509                                         'wrap' => "<div class=\"mw-titleprotectedwarning\">\n$1</div>" ) );
1510                 }
1511
1512                 if ( $this->kblength === false ) {
1513                         $this->kblength = (int)( strlen( $this->textbox1 ) / 1024 );
1514                 }
1515
1516                 if ( $this->tooBig || $this->kblength > $wgMaxArticleSize ) {
1517                         $wgOut->addHTML( "<div class='error' id='mw-edit-longpageerror'>\n" );
1518                         $wgOut->addWikiMsg( 'longpageerror', $wgLang->formatNum( $this->kblength ), $wgLang->formatNum( $wgMaxArticleSize ) );
1519                         $wgOut->addHTML( "</div>\n" );
1520                 } elseif ( $this->kblength > 29 ) {
1521                         $wgOut->addHTML( "<div id='mw-edit-longpagewarning'>\n" );
1522                         $wgOut->addWikiMsg( 'longpagewarning', $wgLang->formatNum( $this->kblength ) );
1523                         $wgOut->addHTML( "</div>\n" );
1524                 }
1525         }
1526
1527         /**
1528          * Standard summary input and label (wgSummary), abstracted so EditPage
1529          * subclasses may reorganize the form.
1530          * Note that you do not need to worry about the label's for=, it will be
1531          * inferred by the id given to the input. You can remove them both by
1532          * passing array( 'id' => false ) to $userInputAttrs.
1533          *
1534          * @param $summary The value of the summary input
1535          * @param $labelText The html to place inside the label
1536          * @param $userInputAttrs An array of attrs to use on the input
1537          * @param $userSpanAttrs An array of attrs to use on the span inside the label
1538          *
1539          * @return array An array in the format array( $label, $input )
1540          */
1541         function getSummaryInput($summary = "", $labelText = null, $inputAttrs = null, $spanLabelAttrs = null) {
1542                 $inputAttrs = ( is_array($inputAttrs) ? $inputAttrs : array() ) + array(
1543                         'id' => 'wpSummary',
1544                         'maxlength' => '200',
1545                         'tabindex' => '2',
1546                         'size' => 60,
1547                         'spellcheck' => 'true',
1548                 );
1549
1550                 $spanLabelAttrs = ( is_array($spanLabelAttrs) ? $spanLabelAttrs : array() ) + array(
1551                         'class' => $this->missingSummary ? 'mw-summarymissed' : 'mw-summary',
1552                         'id' => "wpSummaryLabel"
1553                 );
1554
1555                 $label = null;
1556                 if ( $labelText ) {
1557                         $label = Xml::tags( 'label', $inputAttrs['id'] ? array( 'for' => $inputAttrs['id'] ) : null, $labelText );
1558                         $label = Xml::tags( 'span', $spanLabelAttrs, $label );
1559                 }
1560
1561                 $input = Html::input( 'wpSummary', $summary, 'text', $inputAttrs );
1562
1563                 return array( $label, $input );
1564         }
1565
1566         /**
1567          * @param bool $isSubjectPreview true if this is the section subject/title
1568          *                               up top, or false if this is the comment
1569          *                               summary down below the textarea
1570          * @param string $summary The text of the summary to display
1571          * @return string
1572          */
1573         protected function showSummaryInput( $isSubjectPreview, $summary = "" ) {
1574                 global $wgOut, $wgContLang;
1575                 # Add a class if 'missingsummary' is triggered to allow styling of the summary line
1576                 $summaryClass = $this->missingSummary ? 'mw-summarymissed' : 'mw-summary';
1577                 if ( $isSubjectPreview ) {
1578                         if ( $this->nosummary )
1579                                 return;
1580                 } else {
1581                         if ( !$this->mShowSummaryField )
1582                                 return;
1583                 }
1584                 $summary = $wgContLang->recodeForEdit( $summary );
1585                 $labelText = wfMsgExt( $isSubjectPreview ? 'subject' : 'summary', 'parseinline' );
1586                 list($label, $input) = $this->getSummaryInput($summary, $labelText, array( 'class' => $summaryClass ), array());
1587                 $wgOut->addHTML("{$label} {$input}");
1588         }
1589
1590         /**
1591          * @param bool $isSubjectPreview true if this is the section subject/title
1592          *                               up top, or false if this is the comment
1593          *                               summary down below the textarea
1594          * @param string $summary The text of the summary to display
1595          * @return string
1596          */
1597         protected function getSummaryPreview( $isSubjectPreview, $summary = "" ) {
1598                 if ( !$summary || ( !$this->preview && !$this->diff ) )
1599                         return "";
1600
1601                 global $wgParser, $wgUser;
1602                 $sk = $wgUser->getSkin();
1603
1604                 if ( $isSubjectPreview )
1605                         $summary = wfMsgForContent( 'newsectionsummary', $wgParser->stripSectionName( $summary ) );
1606
1607                 $summary = wfMsgExt( 'subject-preview', 'parseinline' ) . $sk->commentBlock( $summary, $this->mTitle, !!$isSubjectPreview );
1608                 return Xml::tags( 'div', array( 'class' => 'mw-summary-preview' ), $summary );
1609         }
1610
1611         protected function showFormBeforeText() {
1612                 global $wgOut;
1613                 $section = htmlspecialchars( $this->section );
1614                 $wgOut->addHTML( <<<INPUTS
1615 <input type='hidden' value="{$section}" name="wpSection" />
1616 <input type='hidden' value="{$this->starttime}" name="wpStarttime" />
1617 <input type='hidden' value="{$this->edittime}" name="wpEdittime" />
1618 <input type='hidden' value="{$this->scrolltop}" name="wpScrolltop" id="wpScrolltop" />
1619
1620 INPUTS
1621                 );
1622                 if ( !$this->checkUnicodeCompliantBrowser() )
1623                         $wgOut->addHTML(Xml::hidden( 'safemode', '1' ));
1624         }
1625
1626         protected function showFormAfterText() {
1627                 global $wgOut, $wgUser;
1628                 /**
1629                  * To make it harder for someone to slip a user a page
1630                  * which submits an edit form to the wiki without their
1631                  * knowledge, a random token is associated with the login
1632                  * session. If it's not passed back with the submission,
1633                  * we won't save the page, or render user JavaScript and
1634                  * CSS previews.
1635                  *
1636                  * For anon editors, who may not have a session, we just
1637                  * include the constant suffix to prevent editing from
1638                  * broken text-mangling proxies.
1639                  */
1640                 $wgOut->addHTML( "\n" . Xml::hidden( "wpEditToken", $wgUser->editToken() ) . "\n" );
1641         }
1642
1643         /**
1644          * Subpage overridable method for printing the form for page content editing
1645          * By default this simply outputs wpTextbox1
1646          * Subclasses can override this to provide a custom UI for editing;
1647          * be it a form, or simply wpTextbox1 with a modified content that will be
1648          * reverse modified when extracted from the post data.
1649          * Note that this is basically the inverse for importContentFormData
1650          *
1651          * @praram WebRequest $request
1652          */
1653         protected function showContentForm() {
1654                 $this->showTextbox1();
1655         }
1656
1657         /**
1658          * Method to output wpTextbox1
1659          * The $textoverride method can be used by subclasses overriding showContentForm
1660          * to pass back to this method.
1661          *
1662          * @param array $customAttribs An array of html attributes to use in the textarea
1663          * @param string $textoverride Optional text to override $this->textarea1 with
1664          */
1665         protected function showTextbox1($customAttribs = null, $textoverride = null) {
1666                 $classes = array(); // Textarea CSS
1667                 if ( $this->mTitle->getNamespace() != NS_MEDIAWIKI && $this->mTitle->isProtected( 'edit' ) ) {
1668                         # Is the title semi-protected?
1669                         if ( $this->mTitle->isSemiProtected() ) {
1670                                 $classes[] = 'mw-textarea-sprotected';
1671                         } else {
1672                                 # Then it must be protected based on static groups (regular)
1673                                 $classes[] = 'mw-textarea-protected';
1674                         }
1675                 }
1676                 $attribs = array( 'tabindex' => 1 );
1677                 if ( is_array($customAttribs) )
1678                         $attribs += $customAttribs;
1679
1680                 if ( $this->wasDeletedSinceLastEdit() )
1681                         $attribs['type'] = 'hidden';
1682                 if ( !empty( $classes ) ) {
1683                         if ( isset($attribs['class']) )
1684                                 $classes[] = $attribs['class'];
1685                         $attribs['class'] = implode( ' ', $classes );
1686                 }
1687
1688                 $this->showTextbox( isset($textoverride) ? $textoverride : $this->textbox1, 'wpTextbox1', $attribs );
1689         }
1690
1691         protected function showTextbox2() {
1692                 $this->showTextbox( $this->textbox2, 'wpTextbox2', array( 'tabindex' => 6 ) );
1693         }
1694
1695         protected function showTextbox( $content, $name, $customAttribs = array() ) {
1696                 global $wgOut, $wgUser;
1697
1698                 $wikitext = $this->safeUnicodeOutput( $content );
1699                 if ( $wikitext !== '' ) {
1700                         // Ensure there's a newline at the end, otherwise adding lines
1701                         // is awkward.
1702                         // But don't add a newline if the ext is empty, or Firefox in XHTML
1703                         // mode will show an extra newline. A bit annoying.
1704                         $wikitext .= "\n";
1705                 }
1706
1707                 $attribs = $customAttribs + array(
1708                         'accesskey' => ',',
1709                         'id'   => $name,
1710                         'cols' => $wgUser->getIntOption( 'cols' ),
1711                         'rows' => $wgUser->getIntOption( 'rows' ),
1712                         'style' => '' // avoid php notices when appending for editwidth preference (appending allows customAttribs['style'] to still work
1713                 );
1714
1715                 if ( $wgUser->getOption( 'editwidth' ) )
1716                         $attribs['style'] .= 'width: 100%';
1717
1718                 $wgOut->addHTML( Html::textarea( $name, $wikitext, $attribs ) );
1719         }
1720
1721         protected function showMetaData() {
1722                 global $wgOut, $wgContLang, $wgUser;
1723                 $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $this->mMetaData ) );
1724                 $ew = $wgUser->getOption( 'editwidth' ) ? ' style="width:100%"' : '';
1725                 $cols = $wgUser->getIntOption( 'cols' );
1726                 $metadata = wfMsgWikiHtml( 'metadata_help' ) . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
1727                 $wgOut->addHTML( $metadata );
1728         }
1729
1730         protected function displayPreviewArea( $previewOutput, $isOnTop = false ) {
1731                 global $wgOut;
1732                 $classes = array();
1733                 if ( $isOnTop )
1734                         $classes[] = 'ontop';
1735
1736                 $attribs = array( 'id' => 'wikiPreview', 'class' => implode( ' ', $classes ) );
1737
1738                 if ( $this->formtype != 'preview' )
1739                         $attribs['style'] = 'display: none;';
1740
1741                 $wgOut->addHTML( Xml::openElement( 'div', $attribs ) );
1742
1743                 if ( $this->formtype == 'preview' ) {
1744                         $this->showPreview( $previewOutput );
1745                 }
1746
1747                 $wgOut->addHTML( '</div>' );
1748
1749                 if ( $this->formtype == 'diff') {
1750                         $this->showDiff();
1751                 }
1752         }
1753
1754         /**
1755          * Append preview output to $wgOut.
1756          * Includes category rendering if this is a category page.
1757          *
1758          * @param string $text The HTML to be output for the preview.
1759          */
1760         protected function showPreview( $text ) {
1761                 global $wgOut;
1762                 if ( $this->mTitle->getNamespace() == NS_CATEGORY) {
1763                         $this->mArticle->openShowCategory();
1764                 }
1765                 # This hook seems slightly odd here, but makes things more
1766                 # consistent for extensions.
1767                 wfRunHooks( 'OutputPageBeforeHTML',array( &$wgOut, &$text ) );
1768                 $wgOut->addHTML( $text );
1769                 if ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
1770                         $this->mArticle->closeShowCategory();
1771                 }
1772         }
1773
1774         protected function showTosSummary() {
1775                 $msg = 'editpage-tos-summary';
1776                 // Give a chance for site and per-namespace customizations of
1777                 // terms of service summary link that might exist separately
1778                 // from the copyright notice.
1779                 //
1780                 // This will display between the save button and the edit tools,
1781                 // so should remain short!
1782                 wfRunHooks( 'EditPageTosSummary', array( $this->mTitle, &$msg ) );
1783                 $text = wfMsg( $msg );
1784                 if( !wfEmptyMsg( $msg, $text ) && $text !== '-' ) {
1785                         global $wgOut;
1786                         $wgOut->addHTML( '<div class="mw-tos-summary">' );
1787                         $wgOut->addWikiMsgArray( $msg, array() );
1788                         $wgOut->addHTML( '</div>' );
1789                 }
1790         }
1791
1792         protected function showEditTools() {
1793                 global $wgOut;
1794                 $wgOut->addHTML( '<div class="mw-editTools">' );
1795                 $wgOut->addWikiMsgArray( 'edittools', array(), array( 'content' ) );
1796                 $wgOut->addHTML( '</div>' );
1797         }
1798
1799         protected function getCopywarn() {
1800                 global $wgRightsText;
1801                 if ( $wgRightsText ) {
1802                         $copywarnMsg = array( 'copyrightwarning',
1803                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]',
1804                                 $wgRightsText );
1805                 } else {
1806                         $copywarnMsg = array( 'copyrightwarning2',
1807                                 '[[' . wfMsgForContent( 'copyrightpage' ) . ']]' );
1808                 }
1809                 // Allow for site and per-namespace customization of contribution/copyright notice.
1810                 wfRunHooks( 'EditPageCopyrightWarning', array( $this->mTitle, &$copywarnMsg ) );
1811
1812                 return "<div id=\"editpage-copywarn\">\n" . call_user_func_array("wfMsgNoTrans", $copywarnMsg) . "\n</div>";
1813         }
1814
1815         protected function showStandardInputs( &$tabindex = 2 ) {
1816                 global $wgOut, $wgUser;
1817                 $wgOut->addHTML( "<div class='editOptions'>\n" );
1818
1819                 if ( $this->section != 'new' ) {
1820                         $this->showSummaryInput( false, $this->summary );
1821                         $wgOut->addHTML( $this->getSummaryPreview( false, $this->summary ) );
1822                 }
1823
1824                 $checkboxes = $this->getCheckboxes( $tabindex, $wgUser->getSkin(),
1825                         array( 'minor' => $this->minoredit, 'watch' => $this->watchthis ) );
1826                 $wgOut->addHTML( "<div class='editCheckboxes'>" . implode( $checkboxes, "\n" ) . "</div>\n" );
1827                 $wgOut->addHTML( "<div class='editButtons'>\n" );
1828                 $wgOut->addHTML( implode( $this->getEditButtons( $tabindex ), "\n" ) . "\n" );
1829
1830                 $cancel = $this->getCancelLink();
1831                 $separator = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1832                 $edithelpurl = Skin::makeInternalOrExternalUrl( wfMsgForContent( 'edithelppage' ) );
1833                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
1834                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
1835                         htmlspecialchars( wfMsg( 'newwindow' ) );
1836                 $wgOut->addHTML( "      <span class='editHelp'>{$cancel}{$separator}{$edithelp}</span>\n" );
1837                 $wgOut->addHTML( "</div><!-- editButtons -->\n</div><!-- editOptions -->\n" );
1838         }
1839
1840         protected function showConflict() {
1841                 global $wgOut;
1842                 $this->textbox2 = $this->textbox1;
1843                 $this->textbox1 = $this->getContent();
1844                 if ( wfRunHooks( 'EditPageBeforeConflictDiff', array( &$this, &$wgOut ) ) ) {
1845                         $wgOut->wrapWikiMsg( '<h2>$1</h2>', "yourdiff" );
1846
1847                         $de = new DifferenceEngine( $this->mTitle );
1848                         $de->setText( $this->textbox2, $this->textbox1 );
1849                         $de->showDiff( wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
1850
1851                         $wgOut->wrapWikiMsg( '<h2>$1</h2>', "yourtext" );
1852                         $this->showTextbox2();
1853                 }
1854         }
1855
1856         protected function getLastDelete() {
1857                 $dbr = wfGetDB( DB_SLAVE );
1858                 $data = $dbr->selectRow(
1859                         array( 'logging', 'user' ),
1860                         array( 'log_type',
1861                                'log_action',
1862                                'log_timestamp',
1863                                'log_user',
1864                                'log_namespace',
1865                                'log_title',
1866                                'log_comment',
1867                                'log_params',
1868                                'log_deleted',
1869                                'user_name' ),
1870                         array( 'log_namespace' => $this->mTitle->getNamespace(),
1871                                'log_title' => $this->mTitle->getDBkey(),
1872                                'log_type' => 'delete',
1873                                'log_action' => 'delete',
1874                                'user_id=log_user' ),
1875                         __METHOD__,
1876                         array( 'LIMIT' => 1, 'ORDER BY' => 'log_timestamp DESC' )
1877                 );
1878                 // Quick paranoid permission checks...
1879                 if( is_object( $data ) ) {
1880                         if( $data->log_deleted & LogPage::DELETED_USER )
1881                                 $data->user_name = wfMsgHtml( 'rev-deleted-user' );
1882                         if( $data->log_deleted & LogPage::DELETED_COMMENT )
1883                                 $data->log_comment = wfMsgHtml( 'rev-deleted-comment' );
1884                 }
1885                 return $data;
1886         }
1887
1888         /**
1889          * Get the rendered text for previewing.
1890          * @return string
1891          */
1892         function getPreviewText() {
1893                 global $wgOut, $wgUser, $wgTitle, $wgParser, $wgLang, $wgContLang, $wgMessageCache;
1894
1895                 wfProfileIn( __METHOD__ );
1896
1897                 if ( $this->mTriedSave && !$this->mTokenOk ) {
1898                         if ( $this->mTokenOkExceptSuffix ) {
1899                                 $note = wfMsg( 'token_suffix_mismatch' );
1900                         } else {
1901                                 $note = wfMsg( 'session_fail_preview' );
1902                         }
1903                 } else {
1904                         $note = wfMsg( 'previewnote' );
1905                 }
1906
1907                 $parserOptions = ParserOptions::newFromUser( $wgUser );
1908                 $parserOptions->setEditSection( false );
1909                 $parserOptions->setIsPreview( true );
1910                 $parserOptions->setIsSectionPreview( !is_null($this->section) && $this->section !== '' );
1911
1912                 global $wgRawHtml;
1913                 if ( $wgRawHtml && !$this->mTokenOk ) {
1914                         // Could be an offsite preview attempt. This is very unsafe if
1915                         // HTML is enabled, as it could be an attack.
1916                         return $wgOut->parse( "<div class='previewnote'>" .
1917                                 wfMsg( 'session_fail_preview_html' ) . "</div>" );
1918                 }
1919
1920                 # don't parse user css/js, show message about preview
1921                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
1922
1923                 if ( $this->isCssJsSubpage ) {
1924                         if (preg_match( "/\\.css$/", $this->mTitle->getText() ) ) {
1925                                 $previewtext = wfMsg( 'usercsspreview' );
1926                         } else if (preg_match( "/\\.js$/", $this->mTitle->getText() ) ) {
1927                                 $previewtext = wfMsg( 'userjspreview' );
1928                         }
1929                         $parserOptions->setTidy( true );
1930                         $parserOutput = $wgParser->parse( $previewtext, $this->mTitle, $parserOptions );
1931                         $previewHTML = $parserOutput->mText;
1932                 } elseif ( $rt = Title::newFromRedirectArray( $this->textbox1 ) ) {
1933                         $previewHTML = $this->mArticle->viewRedirect( $rt, false );
1934                 } else {
1935                         $toparse = $this->textbox1;
1936
1937                         # If we're adding a comment, we need to show the
1938                         # summary as the headline
1939                         if ( $this->section == "new" && $this->summary != "" ) {
1940                                 $toparse="== {$this->summary} ==\n\n" . $toparse;
1941                         }
1942
1943                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData;
1944
1945                         // Parse mediawiki messages with correct target language
1946                         if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
1947                                 list( /* $unused */, $lang ) = $wgMessageCache->figureMessage( $this->mTitle->getText() );
1948                                 $obj = wfGetLangObj( $lang );
1949                                 $parserOptions->setTargetLanguage( $obj );
1950                         }
1951
1952
1953                         $parserOptions->setTidy( true );
1954                         $parserOptions->enableLimitReport();
1955                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ),
1956                                         $this->mTitle, $parserOptions );
1957
1958                         $previewHTML = $parserOutput->getText();
1959                         $this->mParserOutput = $parserOutput;
1960                         $wgOut->addParserOutputNoText( $parserOutput );
1961
1962                         if ( count( $parserOutput->getWarnings() ) ) {
1963                                 $note .= "\n\n" . implode( "\n\n", $parserOutput->getWarnings() );
1964                         }
1965                 }
1966
1967                 if( $this->isConflict ) {
1968                         $conflict = '<h2 id="mw-previewconflict">' . htmlspecialchars( wfMsg( 'previewconflict' ) ) . "</h2>\n";
1969                 } else {
1970                         $conflict = '<hr />';
1971                 }
1972
1973                 $previewhead = "<div class='previewnote'>\n" .
1974                         '<h2 id="mw-previewheader">' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>" .
1975                         $wgOut->parse( $note ) . $conflict . "</div>\n";
1976
1977                 wfProfileOut( __METHOD__ );
1978                 return $previewhead . $previewHTML . $this->previewTextAfterContent;
1979         }
1980
1981         function getTemplates() {
1982                 if ( $this->preview || $this->section != '' ) {
1983                         $templates = array();
1984                         if ( !isset( $this->mParserOutput ) ) return $templates;
1985                         foreach( $this->mParserOutput->getTemplates() as $ns => $template) {
1986                                 foreach( array_keys( $template ) as $dbk ) {
1987                                         $templates[] = Title::makeTitle($ns, $dbk);
1988                                 }
1989                         }
1990                         return $templates;
1991                 } else {
1992                         return $this->mArticle->getUsedTemplates();
1993                 }
1994         }
1995
1996         /**
1997          * Call the stock "user is blocked" page
1998          */
1999         function blockedPage() {
2000                 global $wgOut;
2001                 $wgOut->blockedPage( false ); # Standard block notice on the top, don't 'return'
2002
2003                 # If the user made changes, preserve them when showing the markup
2004                 # (This happens when a user is blocked during edit, for instance)
2005                 $first = $this->firsttime || ( !$this->save && $this->textbox1 == '' );
2006                 if ( $first ) {
2007                         $source = $this->mTitle->exists() ? $this->getContent() : false;
2008                 } else {
2009                         $source = $this->textbox1;
2010                 }
2011
2012                 # Spit out the source or the user's modified version
2013                 if ( $source !== false ) {
2014                         $wgOut->addHTML( '<hr />' );
2015                         $wgOut->addWikiMsg( $first ? 'blockedoriginalsource' : 'blockededitsource', $this->mTitle->getPrefixedText() );
2016                         $this->showTextbox1( array( 'readonly' ), $source );
2017                 }
2018         }
2019
2020         /**
2021          * Produce the stock "please login to edit pages" page
2022          */
2023         function userNotLoggedInPage() {
2024                 global $wgUser, $wgOut, $wgTitle;
2025                 $skin = $wgUser->getSkin();
2026
2027                 $loginTitle = SpecialPage::getTitleFor( 'Userlogin' );
2028                 $loginLink = $skin->link(
2029                         $loginTitle,
2030                         wfMsgHtml( 'loginreqlink' ),
2031                         array(),
2032                         array( 'returnto' => $wgTitle->getPrefixedText() ),
2033                         array( 'known', 'noclasses' )
2034                 );
2035
2036                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
2037                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2038                 $wgOut->setArticleRelated( false );
2039
2040                 $wgOut->addHTML( wfMsgWikiHtml( 'whitelistedittext', $loginLink ) );
2041                 $wgOut->returnToMain( false, $wgTitle );
2042         }
2043
2044         /**
2045          * Creates a basic error page which informs the user that
2046          * they have attempted to edit a nonexistent section.
2047          */
2048         function noSuchSectionPage() {
2049                 global $wgOut;
2050
2051                 $wgOut->setPageTitle( wfMsg( 'nosuchsectiontitle' ) );
2052                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2053                 $wgOut->setArticleRelated( false );
2054
2055                 $res = wfMsgExt( 'nosuchsectiontext', 'parse', $this->section );
2056                 wfRunHooks( 'EditPageNoSuchSection', array( &$this, &$res ) );
2057                 $wgOut->addHTML( $res );
2058
2059                 $wgOut->returnToMain( false, $this->mTitle );
2060         }
2061
2062         /**
2063          * Produce the stock "your edit contains spam" page
2064          *
2065          * @param $match Text which triggered one or more filters
2066          */
2067         function spamPage( $match = false ) {
2068                 global $wgOut, $wgTitle;
2069
2070                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
2071                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2072                 $wgOut->setArticleRelated( false );
2073
2074                 $wgOut->addHTML( '<div id="spamprotected">' );
2075                 $wgOut->addWikiMsg( 'spamprotectiontext' );
2076                 if ( $match )
2077                         $wgOut->addWikiMsg( 'spamprotectionmatch', wfEscapeWikiText( $match ) );
2078                 $wgOut->addHTML( '</div>' );
2079
2080                 $wgOut->returnToMain( false, $wgTitle );
2081         }
2082
2083         /**
2084          * @private
2085          * @todo document
2086          */
2087         function mergeChangesInto( &$editText ){
2088                 wfProfileIn( __METHOD__ );
2089
2090                 $db = wfGetDB( DB_MASTER );
2091
2092                 // This is the revision the editor started from
2093                 $baseRevision = $this->getBaseRevision();
2094                 if ( is_null( $baseRevision ) ) {
2095                         wfProfileOut( __METHOD__ );
2096                         return false;
2097                 }
2098                 $baseText = $baseRevision->getText();
2099
2100                 // The current state, we want to merge updates into it
2101                 $currentRevision = Revision::loadFromTitle( $db, $this->mTitle );
2102                 if ( is_null( $currentRevision ) ) {
2103                         wfProfileOut( __METHOD__ );
2104                         return false;
2105                 }
2106                 $currentText = $currentRevision->getText();
2107
2108                 $result = '';
2109                 if ( wfMerge( $baseText, $editText, $currentText, $result ) ) {
2110                         $editText = $result;
2111                         wfProfileOut( __METHOD__ );
2112                         return true;
2113                 } else {
2114                         wfProfileOut( __METHOD__ );
2115                         return false;
2116                 }
2117         }
2118
2119         /**
2120          * Check if the browser is on a blacklist of user-agents known to
2121          * mangle UTF-8 data on form submission. Returns true if Unicode
2122          * should make it through, false if it's known to be a problem.
2123          * @return bool
2124          * @private
2125          */
2126         function checkUnicodeCompliantBrowser() {
2127                 global $wgBrowserBlackList;
2128                 if ( empty( $_SERVER["HTTP_USER_AGENT"] ) ) {
2129                         // No User-Agent header sent? Trust it by default...
2130                         return true;
2131                 }
2132                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
2133                 foreach ( $wgBrowserBlackList as $browser ) {
2134                         if ( preg_match($browser, $currentbrowser) ) {
2135                                 return false;
2136                         }
2137                 }
2138                 return true;
2139         }
2140
2141         /**
2142          * @deprecated use $wgParser->stripSectionName()
2143          */
2144         function pseudoParseSectionAnchor( $text ) {
2145                 global $wgParser;
2146                 return $wgParser->stripSectionName( $text );
2147         }
2148
2149         /**
2150          * Format an anchor fragment as it would appear for a given section name
2151          * @param string $text
2152          * @return string
2153          * @private
2154          */
2155         function sectionAnchor( $text ) {
2156                 global $wgParser;
2157                 return $wgParser->guessSectionNameFromWikiText( $text );
2158         }
2159
2160         /**
2161          * Shows a bulletin board style toolbar for common editing functions.
2162          * It can be disabled in the user preferences.
2163          * The necessary JavaScript code can be found in skins/common/edit.js.
2164          *
2165          * @return string
2166          */
2167         static function getEditToolbar() {
2168                 global $wgStylePath, $wgContLang, $wgLang;
2169
2170                 /**
2171
2172                  * toolarray an array of arrays which each include the filename of
2173                  * the button image (without path), the opening tag, the closing tag,
2174                  * and optionally a sample text that is inserted between the two when no
2175                  * selection is highlighted.
2176                  * The tip text is shown when the user moves the mouse over the button.
2177                  *
2178                  * Already here are accesskeys (key), which are not used yet until someone
2179                  * can figure out a way to make them work in IE. However, we should make
2180                  * sure these keys are not defined on the edit page.
2181                  */
2182                 $toolarray = array(
2183                         array(
2184                                 'image'  => $wgLang->getImageFile( 'button-bold' ),
2185                                 'id'     => 'mw-editbutton-bold',
2186                                 'open'   => '\'\'\'',
2187                                 'close'  => '\'\'\'',
2188                                 'sample' => wfMsg( 'bold_sample' ),
2189                                 'tip'    => wfMsg( 'bold_tip' ),
2190                                 'key'    => 'B'
2191                         ),
2192                         array(
2193                                 'image'  => $wgLang->getImageFile( 'button-italic' ),
2194                                 'id'     => 'mw-editbutton-italic',
2195                                 'open'   => '\'\'',
2196                                 'close'  => '\'\'',
2197                                 'sample' => wfMsg( 'italic_sample' ),
2198                                 'tip'    => wfMsg( 'italic_tip' ),
2199                                 'key'    => 'I'
2200                         ),
2201                         array(
2202                                 'image'  => $wgLang->getImageFile( 'button-link' ),
2203                                 'id'     => 'mw-editbutton-link',
2204                                 'open'   => '[[',
2205                                 'close'  => ']]',
2206                                 'sample' => wfMsg( 'link_sample' ),
2207                                 'tip'    => wfMsg( 'link_tip' ),
2208                                 'key'    => 'L'
2209                         ),
2210                         array(
2211                                 'image'  => $wgLang->getImageFile( 'button-extlink' ),
2212                                 'id'     => 'mw-editbutton-extlink',
2213                                 'open'   => '[',
2214                                 'close'  => ']',
2215                                 'sample' => wfMsg( 'extlink_sample' ),
2216                                 'tip'    => wfMsg( 'extlink_tip' ),
2217                                 'key'    => 'X'
2218                         ),
2219                         array(
2220                                 'image'  => $wgLang->getImageFile( 'button-headline' ),
2221                                 'id'     => 'mw-editbutton-headline',
2222                                 'open'   => "\n== ",
2223                                 'close'  => " ==\n",
2224                                 'sample' => wfMsg( 'headline_sample' ),
2225                                 'tip'    => wfMsg( 'headline_tip' ),
2226                                 'key'    => 'H'
2227                         ),
2228                         array(
2229                                 'image'  => $wgLang->getImageFile( 'button-image' ),
2230                                 'id'     => 'mw-editbutton-image',
2231                                 'open'   => '[[' . $wgContLang->getNsText( NS_FILE ) . ':',
2232                                 'close'  => ']]',
2233                                 'sample' => wfMsg( 'image_sample' ),
2234                                 'tip'    => wfMsg( 'image_tip' ),
2235                                 'key'    => 'D'
2236                         ),
2237                         array(
2238                                 'image'  => $wgLang->getImageFile( 'button-media' ),
2239                                 'id'     => 'mw-editbutton-media',
2240                                 'open'   => '[[' . $wgContLang->getNsText( NS_MEDIA ) . ':',
2241                                 'close'  => ']]',
2242                                 'sample' => wfMsg( 'media_sample' ),
2243                                 'tip'    => wfMsg( 'media_tip' ),
2244                                 'key'    => 'M'
2245                         ),
2246                         array(
2247                                 'image'  => $wgLang->getImageFile( 'button-math' ),
2248                                 'id'     => 'mw-editbutton-math',
2249                                 'open'   => "<math>",
2250                                 'close'  => "</math>",
2251                                 'sample' => wfMsg( 'math_sample' ),
2252                                 'tip'    => wfMsg( 'math_tip' ),
2253                                 'key'    => 'C'
2254                         ),
2255                         array(
2256                                 'image'  => $wgLang->getImageFile( 'button-nowiki' ),
2257                                 'id'     => 'mw-editbutton-nowiki',
2258                                 'open'   => "<nowiki>",
2259                                 'close'  => "</nowiki>",
2260                                 'sample' => wfMsg( 'nowiki_sample' ),
2261                                 'tip'    => wfMsg( 'nowiki_tip' ),
2262                                 'key'    => 'N'
2263                         ),
2264                         array(
2265                                 'image'  => $wgLang->getImageFile( 'button-sig' ),
2266                                 'id'     => 'mw-editbutton-signature',
2267                                 'open'   => '--~~~~',
2268                                 'close'  => '',
2269                                 'sample' => '',
2270                                 'tip'    => wfMsg( 'sig_tip' ),
2271                                 'key'    => 'Y'
2272                         ),
2273                         array(
2274                                 'image'  => $wgLang->getImageFile( 'button-hr' ),
2275                                 'id'     => 'mw-editbutton-hr',
2276                                 'open'   => "\n----\n",
2277                                 'close'  => '',
2278                                 'sample' => '',
2279                                 'tip'    => wfMsg( 'hr_tip' ),
2280                                 'key'    => 'R'
2281                         )
2282                 );
2283                 $toolbar = "<div id='toolbar'>\n";
2284
2285                 $script = '';
2286                 foreach ( $toolarray as $tool ) {
2287                         $params = array(
2288                                 $image = $wgStylePath . '/common/images/' . $tool['image'],
2289                                 // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
2290                                 // Older browsers show a "speedtip" type message only for ALT.
2291                                 // Ideally these should be different, realistically they
2292                                 // probably don't need to be.
2293                                 $tip = $tool['tip'],
2294                                 $open = $tool['open'],
2295                                 $close = $tool['close'],
2296                                 $sample = $tool['sample'],
2297                                 $cssId = $tool['id'],
2298                         );
2299
2300                         $paramList = implode( ',',
2301                                 array_map( array( 'Xml', 'encodeJsVar' ), $params ) );
2302                         $script .= "addButton($paramList);\n";
2303                 }
2304                 $toolbar .= Html::inlineScript( "\n$script\n" );
2305
2306                 $toolbar .= "\n</div>";
2307
2308                 wfRunHooks( 'EditPageBeforeEditToolbar', array( &$toolbar ) );
2309
2310                 return $toolbar;
2311         }
2312
2313         /**
2314          * Returns an array of html code of the following checkboxes:
2315          * minor and watch
2316          *
2317          * @param $tabindex Current tabindex
2318          * @param $skin Skin object
2319          * @param $checked Array of checkbox => bool, where bool indicates the checked
2320          *                 status of the checkbox
2321          *
2322          * @return array
2323          */
2324         public function getCheckboxes( &$tabindex, $skin, $checked ) {
2325                 global $wgUser;
2326
2327                 $checkboxes = array();
2328
2329                 $checkboxes['minor'] = '';
2330                 $minorLabel = wfMsgExt( 'minoredit', array( 'parseinline' ) );
2331                 if ( $wgUser->isAllowed( 'minoredit' ) ) {
2332                         $attribs = array(
2333                                 'tabindex'  => ++$tabindex,
2334                                 'accesskey' => wfMsg( 'accesskey-minoredit' ),
2335                                 'id'        => 'wpMinoredit',
2336                         );
2337                         $checkboxes['minor'] =
2338                                 Xml::check( 'wpMinoredit', $checked['minor'], $attribs ) .
2339                                 "&nbsp;<label for='wpMinoredit'" . $skin->tooltip( 'minoredit', 'withaccess' ) . ">{$minorLabel}</label>";
2340                 }
2341
2342                 $watchLabel = wfMsgExt( 'watchthis', array( 'parseinline' ) );
2343                 $checkboxes['watch'] = '';
2344                 if ( $wgUser->isLoggedIn() ) {
2345                         $attribs = array(
2346                                 'tabindex'  => ++$tabindex,
2347                                 'accesskey' => wfMsg( 'accesskey-watch' ),
2348                                 'id'        => 'wpWatchthis',
2349                         );
2350                         $checkboxes['watch'] =
2351                                 Xml::check( 'wpWatchthis', $checked['watch'], $attribs ) .
2352                                 "&nbsp;<label for='wpWatchthis'" . $skin->tooltip( 'watch', 'withaccess' ) . ">{$watchLabel}</label>";
2353                 }
2354                 wfRunHooks( 'EditPageBeforeEditChecks', array( &$this, &$checkboxes, &$tabindex ) );
2355                 return $checkboxes;
2356         }
2357
2358         /**
2359          * Returns an array of html code of the following buttons:
2360          * save, diff, preview and live
2361          *
2362          * @param $tabindex Current tabindex
2363          *
2364          * @return array
2365          */
2366         public function getEditButtons(&$tabindex) {
2367                 $buttons = array();
2368
2369                 $temp = array(
2370                         'id'        => 'wpSave',
2371                         'name'      => 'wpSave',
2372                         'type'      => 'submit',
2373                         'tabindex'  => ++$tabindex,
2374                         'value'     => wfMsg( 'savearticle' ),
2375                         'accesskey' => wfMsg( 'accesskey-save' ),
2376                         'title'     => wfMsg( 'tooltip-save' ).' ['.wfMsg( 'accesskey-save' ).']',
2377                 );
2378                 $buttons['save'] = Xml::element('input', $temp, '');
2379
2380                 ++$tabindex; // use the same for preview and live preview
2381                 $temp = array(
2382                         'id'        => 'wpPreview',
2383                         'name'      => 'wpPreview',
2384                         'type'      => 'submit',
2385                         'tabindex'  => $tabindex,
2386                         'value'     => wfMsg( 'showpreview' ),
2387                         'accesskey' => wfMsg( 'accesskey-preview' ),
2388                         'title'     => wfMsg( 'tooltip-preview' ) . ' [' . wfMsg( 'accesskey-preview' ) . ']',
2389                 );
2390                 $buttons['preview'] = Xml::element( 'input', $temp, '' );
2391                 $buttons['live'] = '';
2392
2393                 $temp = array(
2394                         'id'        => 'wpDiff',
2395                         'name'      => 'wpDiff',
2396                         'type'      => 'submit',
2397                         'tabindex'  => ++$tabindex,
2398                         'value'     => wfMsg( 'showdiff' ),
2399                         'accesskey' => wfMsg( 'accesskey-diff' ),
2400                         'title'     => wfMsg( 'tooltip-diff' ) . ' [' . wfMsg( 'accesskey-diff' ) . ']',
2401                 );
2402                 $buttons['diff'] = Xml::element( 'input', $temp, '' );
2403
2404                 wfRunHooks( 'EditPageBeforeEditButtons', array( &$this, &$buttons, &$tabindex ) );
2405                 return $buttons;
2406         }
2407
2408         /**
2409          * Output preview text only. This can be sucked into the edit page
2410          * via JavaScript, and saves the server time rendering the skin as
2411          * well as theoretically being more robust on the client (doesn't
2412          * disturb the edit box's undo history, won't eat your text on
2413          * failure, etc).
2414          *
2415          * @todo This doesn't include category or interlanguage links.
2416          *       Would need to enhance it a bit, <s>maybe wrap them in XML
2417          *       or something...</s> that might also require more skin
2418          *       initialization, so check whether that's a problem.
2419          */
2420         function livePreview() {
2421                 global $wgOut;
2422                 $wgOut->disable();
2423                 header( 'Content-type: text/xml; charset=utf-8' );
2424                 header( 'Cache-control: no-cache' );
2425
2426                 $previewText = $this->getPreviewText();
2427                 #$categories = $skin->getCategoryLinks();
2428
2429                 $s =
2430                 '<?xml version="1.0" encoding="UTF-8" ?>' . "\n" .
2431                 Xml::tags( 'livepreview', null,
2432                         Xml::element( 'preview', null, $previewText )
2433                         #.      Xml::element( 'category', null, $categories )
2434                 );
2435                 echo $s;
2436         }
2437
2438
2439         public function getCancelLink() {
2440                 global $wgUser, $wgTitle;
2441
2442                 $cancelParams = array();
2443                 if ( !$this->isConflict && $this->mArticle->getOldID() > 0 ) {
2444                         $cancelParams['oldid'] = $this->mArticle->getOldID();
2445                 }
2446
2447                 return $wgUser->getSkin()->link(
2448                         $wgTitle,
2449                         wfMsgExt( 'cancel', array( 'parseinline' ) ),
2450                         array( 'id' => 'mw-editform-cancel' ),
2451                         $cancelParams,
2452                         array( 'known', 'noclasses' )
2453                 );
2454         }
2455
2456         /**
2457          * Get a diff between the current contents of the edit box and the
2458          * version of the page we're editing from.
2459          *
2460          * If this is a section edit, we'll replace the section as for final
2461          * save and then make a comparison.
2462          */
2463         function showDiff() {
2464                 $oldtext = $this->mArticle->fetchContent();
2465                 $newtext = $this->mArticle->replaceSection(
2466                         $this->section, $this->textbox1, $this->summary, $this->edittime );
2467                 $newtext = $this->mArticle->preSaveTransform( $newtext );
2468                 $oldtitle = wfMsgExt( 'currentrev', array( 'parseinline' ) );
2469                 $newtitle = wfMsgExt( 'yourtext', array( 'parseinline' ) );
2470                 if ( $oldtext !== false  || $newtext != '' ) {
2471                         $de = new DifferenceEngine( $this->mTitle );
2472                         $de->setText( $oldtext, $newtext );
2473                         $difftext = $de->getDiff( $oldtitle, $newtitle );
2474                         $de->showDiffStyle();
2475                 } else {
2476                         $difftext = '';
2477                 }
2478
2479                 global $wgOut;
2480                 $wgOut->addHTML( '<div id="wikiDiff">' . $difftext . '</div>' );
2481         }
2482
2483         /**
2484          * Filter an input field through a Unicode de-armoring process if it
2485          * came from an old browser with known broken Unicode editing issues.
2486          *
2487          * @param WebRequest $request
2488          * @param string $field
2489          * @return string
2490          * @private
2491          */
2492         function safeUnicodeInput( $request, $field ) {
2493                 $text = rtrim( $request->getText( $field ) );
2494                 return $request->getBool( 'safemode' )
2495                         ? $this->unmakesafe( $text )
2496                         : $text;
2497         }
2498
2499         function safeUnicodeText( $request, $text ) {
2500                 $text = rtrim( $text );
2501                 return $request->getBool( 'safemode' )
2502                         ? $this->unmakesafe( $text )
2503                         : $text;
2504         }
2505
2506         /**
2507          * Filter an output field through a Unicode armoring process if it is
2508          * going to an old browser with known broken Unicode editing issues.
2509          *
2510          * @param string $text
2511          * @return string
2512          * @private
2513          */
2514         function safeUnicodeOutput( $text ) {
2515                 global $wgContLang;
2516                 $codedText = $wgContLang->recodeForEdit( $text );
2517                 return $this->checkUnicodeCompliantBrowser()
2518                         ? $codedText
2519                         : $this->makesafe( $codedText );
2520         }
2521
2522         /**
2523          * A number of web browsers are known to corrupt non-ASCII characters
2524          * in a UTF-8 text editing environment. To protect against this,
2525          * detected browsers will be served an armored version of the text,
2526          * with non-ASCII chars converted to numeric HTML character references.
2527          *
2528          * Preexisting such character references will have a 0 added to them
2529          * to ensure that round-trips do not alter the original data.
2530          *
2531          * @param string $invalue
2532          * @return string
2533          * @private
2534          */
2535         function makesafe( $invalue ) {
2536                 // Armor existing references for reversability.
2537                 $invalue = strtr( $invalue, array( "&#x" => "&#x0" ) );
2538
2539                 $bytesleft = 0;
2540                 $result = "";
2541                 $working = 0;
2542                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
2543                         $bytevalue = ord( $invalue{$i} );
2544                         if ( $bytevalue <= 0x7F ) { //0xxx xxxx
2545                                 $result .= chr( $bytevalue );
2546                                 $bytesleft = 0;
2547                         } elseif ( $bytevalue <= 0xBF ) { //10xx xxxx
2548                                 $working = $working << 6;
2549                                 $working += ($bytevalue & 0x3F);
2550                                 $bytesleft--;
2551                                 if ( $bytesleft <= 0 ) {
2552                                         $result .= "&#x" . strtoupper( dechex( $working ) ) . ";";
2553                                 }
2554                         } elseif ( $bytevalue <= 0xDF ) { //110x xxxx
2555                                 $working = $bytevalue & 0x1F;
2556                                 $bytesleft = 1;
2557                         } elseif ( $bytevalue <= 0xEF ) { //1110 xxxx
2558                                 $working = $bytevalue & 0x0F;
2559                                 $bytesleft = 2;
2560                         } else { //1111 0xxx
2561                                 $working = $bytevalue & 0x07;
2562                                 $bytesleft = 3;
2563                         }
2564                 }
2565                 return $result;
2566         }
2567
2568         /**
2569          * Reverse the previously applied transliteration of non-ASCII characters
2570          * back to UTF-8. Used to protect data from corruption by broken web browsers
2571          * as listed in $wgBrowserBlackList.
2572          *
2573          * @param string $invalue
2574          * @return string
2575          * @private
2576          */
2577         function unmakesafe( $invalue ) {
2578                 $result = "";
2579                 for( $i = 0; $i < strlen( $invalue ); $i++ ) {
2580                         if ( ( substr( $invalue, $i, 3 ) == "&#x" ) && ( $invalue{$i+3} != '0' ) ) {
2581                                 $i += 3;
2582                                 $hexstring = "";
2583                                 do {
2584                                         $hexstring .= $invalue{$i};
2585                                         $i++;
2586                                 } while( ctype_xdigit( $invalue{$i} ) && ( $i < strlen( $invalue ) ) );
2587
2588                                 // Do some sanity checks. These aren't needed for reversability,
2589                                 // but should help keep the breakage down if the editor
2590                                 // breaks one of the entities whilst editing.
2591                                 if ( (substr($invalue,$i,1)==";") and (strlen($hexstring) <= 6) ) {
2592                                         $codepoint = hexdec($hexstring);
2593                                         $result .= codepointToUtf8( $codepoint );
2594                                 } else {
2595                                         $result .= "&#x" . $hexstring . substr( $invalue, $i, 1 );
2596                                 }
2597                         } else {
2598                                 $result .= substr( $invalue, $i, 1 );
2599                         }
2600                 }
2601                 // reverse the transform that we made for reversability reasons.
2602                 return strtr( $result, array( "&#x0" => "&#x" ) );
2603         }
2604
2605         function noCreatePermission() {
2606                 global $wgOut;
2607                 $wgOut->setPageTitle( wfMsg( 'nocreatetitle' ) );
2608                 $wgOut->addWikiMsg( 'nocreatetext' );
2609         }
2610
2611         /**
2612          * Attempt submission
2613          * @return bool false if output is done, true if the rest of the form should be displayed
2614          */
2615         function attemptSave() {
2616                 global $wgUser, $wgOut, $wgTitle;
2617
2618                 $resultDetails = false;
2619                 # Allow bots to exempt some edits from bot flagging
2620                 $bot = $wgUser->isAllowed( 'bot' ) && $this->bot;
2621                 $value = $this->internalAttemptSave( $resultDetails, $bot );
2622
2623                 if ( $value == self::AS_SUCCESS_UPDATE || $value == self::AS_SUCCESS_NEW_ARTICLE ) {
2624                         $this->didSave = true;
2625                 }
2626
2627                 switch ( $value ) {
2628                         case self::AS_HOOK_ERROR_EXPECTED:
2629                         case self::AS_CONTENT_TOO_BIG:
2630                         case self::AS_ARTICLE_WAS_DELETED:
2631                         case self::AS_CONFLICT_DETECTED:
2632                         case self::AS_SUMMARY_NEEDED:
2633                         case self::AS_TEXTBOX_EMPTY:
2634                         case self::AS_MAX_ARTICLE_SIZE_EXCEEDED:
2635                         case self::AS_END:
2636                                 return true;
2637
2638                         case self::AS_HOOK_ERROR:
2639                         case self::AS_FILTERING:
2640                         case self::AS_SUCCESS_NEW_ARTICLE:
2641                         case self::AS_SUCCESS_UPDATE:
2642                                 return false;
2643
2644                         case self::AS_SPAM_ERROR:
2645                                 $this->spamPage( $resultDetails['spam'] );
2646                                 return false;
2647
2648                         case self::AS_BLOCKED_PAGE_FOR_USER:
2649                                 $this->blockedPage();
2650                                 return false;
2651
2652                         case self::AS_IMAGE_REDIRECT_ANON:
2653                                 $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
2654                                 return false;
2655
2656                         case self::AS_READ_ONLY_PAGE_ANON:
2657                                 $this->userNotLoggedInPage();
2658                                 return false;
2659
2660                         case self::AS_READ_ONLY_PAGE_LOGGED:
2661                         case self::AS_READ_ONLY_PAGE:
2662                                 $wgOut->readOnlyPage();
2663                                 return false;
2664
2665                         case self::AS_RATE_LIMITED:
2666                                 $wgOut->rateLimited();
2667                                 return false;
2668
2669                         case self::AS_NO_CREATE_PERMISSION:
2670                                 $this->noCreatePermission();
2671                                 return;
2672
2673                         case self::AS_BLANK_ARTICLE:
2674                                 $wgOut->redirect( $wgTitle->getFullURL() );
2675                                 return false;
2676
2677                         case self::AS_IMAGE_REDIRECT_LOGGED:
2678                                 $wgOut->permissionRequired( 'upload' );
2679                                 return false;
2680                 }
2681         }
2682
2683         function getBaseRevision() {
2684                 if ( $this->mBaseRevision == false ) {
2685                         $db = wfGetDB( DB_MASTER );
2686                         $baseRevision = Revision::loadFromTimestamp(
2687                                 $db, $this->mTitle, $this->edittime );
2688                         return $this->mBaseRevision = $baseRevision;
2689                 } else {
2690                         return $this->mBaseRevision;
2691                 }
2692         }
2693 }