includes/EditPage.php

   1 <?php
   2 /**
   3  * Contain the EditPage class
   4  * @package MediaWiki
   5  */
   6
   7 /**
   8  * Splitting edit page/HTML interface 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  * @package MediaWiki
  14  */
  15
  16 class EditPage {
  17         var $mArticle;
  18         var $mTitle;
  19         var $mMetaData = '';
  20
  21         # Form values
  22         var $save = false, $preview = false;
  23         var $minoredit = false, $watchthis = false;
  24         var $textbox1 = '', $textbox2 = '', $summary = '';
  25         var $edittime = '', $section = '';
  26         var $oldid = 0;
  27
  28         /**
  29          * @todo document
  30          * @param $article
  31          */
  32         function EditPage( $article ) {
  33                 $this->mArticle =& $article;
  34                 global $wgTitle;
  35                 $this->mTitle =& $wgTitle;
  36         }
  37
  38         /**
  39          * This is the function that extracts metadata from the article body on the first view.
  40          * To turn the feature on, set $wgUseMetadataEdit = true ; in LocalSettings
  41          *  and set $wgMetadataWhitelist to the *full* title of the template whitelist
  42          */
  43         function extractMetaDataFromArticle ()
  44         {
  45                 global $wgUseMetadataEdit , $wgMetadataWhitelist , $wgLang ;
  46                 $this->mMetaData = "" ;
  47                 if ( !$wgUseMetadataEdit ) return ;
  48                 if ( $wgMetadataWhitelist == "" ) return ;
  49                 $s = "" ;
  50                 $t = $this->mArticle->getContent ( true ) ;
  51
  52                 # MISSING : <nowiki> filtering
  53
  54                 # Categories and language links
  55                 $t = explode ( "\n" , $t ) ;
  56                 $catlow = strtolower ( $wgLang->getNsText ( NS_CATEGORY ) ) ;
  57                 $cat = $ll = array() ;
  58                 foreach ( $t AS $key => $x )
  59                 {
  60                         $y = trim ( strtolower ( $x ) ) ;
  61                         while ( substr ( $y , 0 , 2 ) == "[[" )
  62                         {
  63                                 $y = explode ( "]]" , trim ( $x ) ) ;
  64                                 $first = array_shift ( $y ) ;
  65                                 $first = explode ( ":" , $first ) ;
  66                                 $ns = array_shift ( $first ) ;
  67                                 $ns = trim ( str_replace ( "[" , "" , $ns ) ) ;
  68                                 if ( strlen ( $ns ) == 2 OR strtolower ( $ns ) == $catlow )
  69                                 {
  70                                         $add = "[[" . $ns . ":" . implode ( ":" , $first ) . "]]" ;
  71                                         if ( strtolower ( $ns ) == $catlow ) $cat[] = $add ;
  72                                         else $ll[] = $add ;
  73                                         $x = implode ( "]]" , $y ) ;
  74                                         $t[$key] = $x ;
  75                                         $y = trim ( strtolower ( $x ) ) ;
  76                                 }
  77                         }
  78                 }
  79                 if ( count ( $cat ) ) $s .= implode ( " " , $cat ) . "\n" ;
  80                 if ( count ( $ll ) ) $s .= implode ( " " , $ll ) . "\n" ;
  81                 $t = implode ( "\n" , $t ) ;
  82
  83                 # Load whitelist
  84                 $sat = array () ; # stand-alone-templates; must be lowercase
  85                 $wl_title = Title::newFromText ( $wgMetadataWhitelist ) ;
  86                 $wl_article = new Article ( $wl_title ) ;
  87                 $wl = explode ( "\n" , $wl_article->getContent(true) ) ;
  88                 foreach ( $wl AS $x )
  89                 {
  90                         $isentry = false ;
  91                         $x = trim ( $x ) ;
  92                         while ( substr ( $x , 0 , 1 ) == "*" )
  93                         {
  94                                 $isentry = true ;
  95                                 $x = trim ( substr ( $x , 1 ) ) ;
  96                         }
  97                         if ( $isentry )
  98                         {
  99                                 $sat[] = strtolower ( $x ) ;
 100                         }
 101
 102                 }
 103
 104                 # Templates, but only some
 105                 $t = explode ( "{{" , $t ) ;
 106                 $tl = array () ;
 107                 foreach ( $t AS $key => $x )
 108                 {
 109                         $y = explode ( "}}" , $x , 2 ) ;
 110                         if ( count ( $y ) == 2 )
 111                         {
 112                                 $z = $y[0] ;
 113                                 $z = explode ( "|" , $z ) ;
 114                                 $tn = array_shift ( $z ) ;
 115                                 if ( in_array ( strtolower ( $tn ) , $sat ) )
 116                                 {
 117                                         $tl[] = "{{" . $y[0] . "}}" ;
 118                                         $t[$key] = $y[1] ;
 119                                         $y = explode ( "}}" , $y[1] , 2 ) ;
 120                                 }
 121                                 else $t[$key] = "{{" . $x ;
 122                         }
 123                         else if ( $key != 0 ) $t[$key] = "{{" . $x ;
 124                         else $t[$key] = $x ;
 125                 }
 126                 if ( count ( $tl ) ) $s .= implode ( " " , $tl ) ;
 127                 $t = implode ( "" , $t ) ;
 128
 129                 $t = str_replace ( "\n\n\n" , "\n" , $t ) ;
 130                 $this->mArticle->mContent = $t ;
 131                 $this->mMetaData = $s ;
 132         }
 133
 134         /**
 135          * This is the function that gets called for "action=edit".
 136          */
 137         function edit() {
 138                 global $wgOut, $wgUser, $wgWhitelistEdit, $wgRequest;
 139                 // this is not an article
 140                 $wgOut->setArticleFlag(false);
 141
 142                 $this->importFormData( $wgRequest );
 143
 144                 if( $this->live ) {
 145                         $this->livePreview();
 146                         return;
 147                 }
 148
 149                 if ( ! $this->mTitle->userCanEdit() ) {
 150                         $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
 151                         return;
 152                 }
 153                 if ( $wgUser->isBlocked() ) {
 154                         $this->blockedIPpage();
 155                         return;
 156                 }
 157                 if ( !$wgUser->getID() && $wgWhitelistEdit ) {
 158                         $this->userNotLoggedInPage();
 159                         return;
 160                 }
 161                 if ( wfReadOnly() ) {
 162                         if( $this->save || $this->preview ) {
 163                                 $this->editForm( 'preview' );
 164                         } else {
 165                                 $wgOut->readOnlyPage( $this->mArticle->getContent( true ) );
 166                         }
 167                         return;
 168                 }
 169                 if ( $this->save ) {
 170                         $this->editForm( 'save' );
 171                 } else if ( $this->preview ) {
 172                         $this->editForm( 'preview' );
 173                 } else { # First time through
 174                         if( $wgUser->getOption('previewonfirst') ) {
 175                                 $this->editForm( 'preview', true );
 176                         } else {
 177                                 $this->extractMetaDataFromArticle () ;
 178                                 $this->editForm( 'initial', true );
 179                         }
 180                 }
 181         }
 182
 183         /**
 184          * @todo document
 185          */
 186         function importFormData( &$request ) {
 187                 if( $request->wasPosted() ) {
 188                         # These fields need to be checked for encoding.
 189                         # Also remove trailing whitespace, but don't remove _initial_
 190                         # whitespace from the text boxes. This may be significant formatting.
 191                         $this->textbox1  = rtrim( $request->getText( 'wpTextbox1' ) );
 192                         $this->textbox2  = rtrim( $request->getText( 'wpTextbox2' ) );
 193                         $this->mMetaData = rtrim( $request->getText( 'metadata'   ) );
 194                         $this->summary   =  trim( $request->getText( 'wpSummary'  ) );
 195
 196                         $this->edittime = $request->getVal( 'wpEdittime' );
 197                         if( is_null( $this->edittime ) ) {
 198                                 # If the form is incomplete, force to preview.
 199                                 $this->preview  = true;
 200                         } else {
 201                                 # Some browsers will not report any submit button
 202                                 # if the user hits enter in the comment box.
 203                                 # The unmarked state will be assumed to be a save,
 204                                 # if the form seems otherwise complete.
 205                                 $this->preview = $request->getCheck( 'wpPreview' );
 206                         }
 207                         $this->save    = !$this->preview;
 208                         if( !preg_match( '/^\d{14}$/', $this->edittime )) {
 209                                 $this->edittime = null;
 210                         }
 211
 212                         $this->minoredit = $request->getCheck( 'wpMinoredit' );
 213                         $this->watchthis = $request->getCheck( 'wpWatchthis' );
 214                 } else {
 215                         # Not a posted form? Start with nothing.
 216                         $this->textbox1  = '';
 217                         $this->textbox2  = '';
 218                         $this->mMetaData = '';
 219                         $this->summary   = '';
 220                         $this->edittime  = '';
 221                         $this->preview   = false;
 222                         $this->save      = false;
 223                         $this->minoredit = false;
 224                         $this->watchthis = false;
 225                 }
 226
 227                 $this->oldid = $request->getInt( 'oldid' );
 228
 229                 # Section edit can come from either the form or a link
 230                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 231
 232                 $this->live = $request->getCheck( 'live' );
 233         }
 234
 235         function submit() {
 236                 $this->edit();
 237         }
 238
 239         /**
 240          * The edit form is self-submitting, so that when things like
 241          * preview and edit conflicts occur, we get the same form back
 242          * with the extra stuff added.  Only when the final submission
 243          * is made and all is well do we actually save and redirect to
 244          * the newly-edited page.
 245          *
 246          * @param string $formtype Type of form either : save, initial or preview
 247          * @param bool $firsttime True to load form data from db
 248          */
 249         function editForm( $formtype, $firsttime = false ) {
 250                 global $wgOut, $wgUser;
 251                 global $wgLang, $wgContLang, $wgParser, $wgTitle;
 252                 global $wgAllowAnonymousMinor;
 253                 global $wgWhitelistEdit;
 254                 global $wgSpamRegex, $wgFilterCallback;
 255                 global $wgUseLatin1;
 256
 257                 $sk = $wgUser->getSkin();
 258                 $isConflict = false;
 259                 // css / js subpages of user pages get a special treatment
 260                 $isCssJsSubpage = (Namespace::getUser() == $wgTitle->getNamespace() and preg_match("/\\.(css|js)$/", $wgTitle->getText() ));
 261
 262                 if(!$this->mTitle->getArticleID()) { # new article
 263                         $wgOut->addWikiText(wfmsg('newarticletext'));
 264                 }
 265
 266                 if( Namespace::isTalk( $this->mTitle->getNamespace() ) ) {
 267                         $wgOut->addWikiText(wfmsg('talkpagetext'));
 268                 }
 269
 270                 # Attempt submission here.  This will check for edit conflicts,
 271                 # and redundantly check for locked database, blocked IPs, etc.
 272                 # that edit() already checked just in case someone tries to sneak
 273                 # in the back door with a hand-edited submission URL.
 274
 275                 if ( 'save' == $formtype ) {
 276                         # Reintegrate metadata
 277                         if ( $this->mMetaData != "" ) $this->textbox1 .= "\n" . $this->mMetaData ;
 278                         $this->mMetaData = "" ;
 279
 280                         # Check for spam
 281                         if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 282                                 $this->spamPage ( $matches[0] );
 283                                 return;
 284                         }
 285                         if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 286                                 # Error messages or other handling should be performed by the filter function
 287                                 return;
 288                         }
 289                         if ( $wgUser->isBlocked() ) {
 290                                 $this->blockedIPpage();
 291                                 return;
 292                         }
 293                         if ( !$wgUser->getID() && $wgWhitelistEdit ) {
 294                                 $this->userNotLoggedInPage();
 295                                 return;
 296                         }
 297                         if ( wfReadOnly() ) {
 298                                 $wgOut->readOnlyPage();
 299                                 return;
 300                         }
 301
 302                         # If article is new, insert it.
 303                         $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 304                         if ( 0 == $aid ) {
 305                                 # Don't save a new article if it's blank.
 306                                 if ( ( '' == $this->textbox1 ) ||
 307                                   ( wfMsg( 'newarticletext' ) == $this->textbox1 ) ) {
 308                                         $wgOut->redirect( $this->mTitle->getFullURL() );
 309                                         return;
 310                                 }
 311                                 if (wfRunHooks('ArticleSave', $this->mArticle, $wgUser, $this->textbox1,
 312                                                            $this->summary, $this->minoredit, $this->watchthis, NULL))
 313                                 {
 314                                         $this->mArticle->insertNewArticle( $this->textbox1, $this->summary,
 315                                                                                                            $this->minoredit, $this->watchthis );
 316                                         wfRunHooks('ArticleSaveComplete', $this->mArticle, $wgUser, $this->textbox1,
 317                                                            $this->summary, $this->minoredit, $this->watchthis, NULL);
 318                                 }
 319                                 return;
 320                         }
 321
 322                         # Article exists. Check for edit conflict.
 323
 324                         $this->mArticle->clear(); # Force reload of dates, etc.
 325                         $this->mArticle->forUpdate( true ); # Lock the article
 326
 327                         if( ( $this->section != 'new' ) &&
 328                                 ($this->mArticle->getTimestamp() != $this->edittime ) ) {
 329                                 $isConflict = true;
 330                         }
 331                         $userid = $wgUser->getID();
 332
 333                         if ( $isConflict) {
 334                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 335                                         $this->section, $this->textbox1, $this->summary, $this->edittime);
 336                         }
 337                         else {
 338                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 339                                         $this->section, $this->textbox1, $this->summary);
 340                         }
 341                         # Suppress edit conflict with self
 342
 343                         if ( ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 344                                 $isConflict = false;
 345                         } else {
 346                                 # switch from section editing to normal editing in edit conflict
 347                                 if($isConflict) {
 348                                         # Attempt merge
 349                                         if( $this->mergeChangesInto( $text ) ){
 350                                                 // Successful merge! Maybe we should tell the user the good news?
 351                                                 $isConflict = false;
 352                                         } else {
 353                                                 $this->section = '';
 354                                                 $this->textbox1 = $text;
 355                                         }
 356                                 }
 357                         }
 358                         if ( ! $isConflict ) {
 359                                 # All's well
 360                                 $sectionanchor = '';
 361                                 if( $this->section == 'new' ) {
 362                                         if( $this->summary != '' ) {
 363                                                 $sectionanchor = $this->sectionAnchor( $this->summary );
 364                                         }
 365                                 } elseif( $this->section != '' ) {
 366                                         # Try to get a section anchor from the section source, redirect to edited section if header found
 367                                         # XXX: might be better to integrate this into Article::getTextOfLastEditWithSectionReplacedOrAdded
 368                                         # for duplicate heading checking and maybe parsing
 369                                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 370                                         # we can't deal with anchors, includes, html etc in the header for now,
 371                                         # headline would need to be parsed to improve this
 372                                         #if($hasmatch and strlen($matches[2]) > 0 and !preg_match( "/[\\['{<>]/", $matches[2])) {
 373                                         if($hasmatch and strlen($matches[2]) > 0) {
 374                                                 $sectionanchor = $this->sectionAnchor( $matches[2] );
 375                                         }
 376                                 }
 377
 378                                 if (wfRunHooks('ArticleSave', $this->mArticle, $wgUser, $text, $this->summary,
 379                                                            $this->minoredit, $this->watchthis, $sectionanchor))
 380                                 {
 381                                         # update the article here
 382                                         if($this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 383                                                                                                            $this->watchthis, '', $sectionanchor ))
 384                                         {
 385                                                 wfRunHooks('ArticleSaveComplete', $this->mArticle, $wgUser, $text, $this->summary,
 386                                                                    $this->minoredit, $this->watchthis, $sectionanchor);
 387                                                 return;
 388                                         }
 389                                         else
 390                                           $isConflict = true;
 391                                 }
 392                         }
 393                 }
 394                 # First time through: get contents, set time for conflict
 395                 # checking, etc.
 396
 397                 if ( 'initial' == $formtype || $firsttime ) {
 398                         $this->edittime = $this->mArticle->getTimestamp();
 399                         $this->textbox1 = $this->mArticle->getContent( true );
 400                         $this->summary = '';
 401                         $this->proxyCheck();
 402                 }
 403                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 404
 405                 # Enabled article-related sidebar, toplinks, etc.
 406                 $wgOut->setArticleRelated( true );
 407
 408                 if ( $isConflict ) {
 409                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 410                         $wgOut->setPageTitle( $s );
 411                         $wgOut->addHTML( wfMsg( 'explainconflict' ) );
 412
 413                         $this->textbox2 = $this->textbox1;
 414                         $this->textbox1 = $this->mArticle->getContent( true );
 415                         $this->edittime = $this->mArticle->getTimestamp();
 416                 } else {
 417
 418                         if( $this->section != '' ) {
 419                                 if( $this->section == 'new' ) {
 420                                         $s = wfMsg('editingcomment', $this->mTitle->getPrefixedText() );
 421                                 } else {
 422                                         $s = wfMsg('editingsection', $this->mTitle->getPrefixedText() );
 423                                 }
 424                                 if(!$this->preview) {
 425                                         preg_match( "/^(=+)(.+)\\1/mi",
 426                                                 $this->textbox1,
 427                                                 $matches );
 428                                         if( !empty( $matches[2] ) ) {
 429                                                 $this->summary = "/* ". trim($matches[2])." */ ";
 430                                         }
 431                                 }
 432                         } else {
 433                                 $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 434                         }
 435                         $wgOut->setPageTitle( $s );
 436                         if ( !$wgUseLatin1 && !$this->checkUnicodeCompliantBrowser() ) {
 437                                 $this->mArticle->setOldSubtitle();
 438                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 439                         }
 440                         if ( $this->oldid ) {
 441                                 $this->mArticle->setOldSubtitle();
 442                                 $wgOut->addHTML( wfMsg( 'editingold' ) );
 443                         }
 444                 }
 445
 446                 if( wfReadOnly() ) {
 447                         $wgOut->addHTML( '<strong>' .
 448                         wfMsg( 'readonlywarning' ) .
 449                         "</strong>" );
 450                 } else if ( $isCssJsSubpage and 'preview' != $formtype) {
 451                         $wgOut->addHTML( wfMsg( 'usercssjsyoucanpreview' ));
 452                 }
 453                 if( $this->mTitle->isProtected('edit') ) {
 454                         $wgOut->addHTML( '<strong>' . wfMsg( 'protectedpagewarning' ) .
 455                           "</strong><br />\n" );
 456                 }
 457
 458                 $kblength = (int)(strlen( $this->textbox1 ) / 1024);
 459                 if( $kblength > 29 ) {
 460                         $wgOut->addHTML( '<strong>' .
 461                                 wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) )
 462                                 . '</strong>' );
 463                 }
 464
 465                 $rows = $wgUser->getOption( 'rows' );
 466                 $cols = $wgUser->getOption( 'cols' );
 467
 468                 $ew = $wgUser->getOption( 'editwidth' );
 469                 if ( $ew ) $ew = " style=\"width:100%\"";
 470                 else $ew = '';
 471
 472                 $q = 'action=submit';
 473                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 474                 $action = $this->mTitle->escapeLocalURL( $q );
 475
 476                 $summary = wfMsg('summary');
 477                 $subject = wfMsg('subject');
 478                 $minor   = wfMsg('minoredit');
 479                 $watchthis = wfMsg ('watchthis');
 480                 $save = wfMsg('savearticle');
 481                 $prev = wfMsg('showpreview');
 482
 483                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
 484                                 wfMsg('cancel') );
 485                 $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
 486                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
 487                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
 488                         htmlspecialchars( wfMsg( 'newwindow' ) );
 489
 490                 global $wgRightsText;
 491                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
 492                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
 493                                 '[[' . wfMsg( 'copyrightpage' ) . ']]',
 494                                 $wgRightsText ) . "\n</div>";
 495
 496                 if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
 497                         # prepare toolbar for edit buttons
 498                         $toolbar = $this->getEditToolbar();
 499                 } else {
 500                         $toolbar = '';
 501                 }
 502
 503                 // activate checkboxes if user wants them to be always active
 504                 if( !$this->preview ) {
 505                         if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
 506                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
 507
 508                         // activate checkbox also if user is already watching the page,
 509                         // require wpWatchthis to be unset so that second condition is not
 510                         // checked unnecessarily
 511                         if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
 512                 }
 513
 514                 $minoredithtml = '';
 515
 516                 if ( 0 != $wgUser->getID() || $wgAllowAnonymousMinor ) {
 517                         $minoredithtml =
 518                                 "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
 519                                 " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
 520                                 "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
 521                 }
 522
 523                 $watchhtml = '';
 524
 525                 if ( 0 != $wgUser->getID() ) {
 526                         $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
 527                                 " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
 528                                 "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
 529                 }
 530
 531                 $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 532
 533                 $wgOut->addHTML( '<div id="wikiPreview">' );
 534                 if ( 'preview' == $formtype) {
 535                         $previewOutput = $this->getPreviewText( $isConflict, $isCssJsSubpage );
 536                         if( $wgUser->getOption('previewontop' ) ) {
 537                                 $wgOut->addHTML( $previewOutput );
 538                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 539                         }
 540                 }
 541                 $wgOut->addHTML( '</div>' );
 542
 543                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 544                 # Otherwise, show a summary field at the bottom
 545                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
 546                         if( $this->section == 'new' ) {
 547                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 548                                 $editsummary = '';
 549                         } else {
 550                                 $commentsubject = '';
 551                                 $editsummary="{$summary}: <input tabindex='3' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 552                         }
 553
 554                 if( !$this->preview ) {
 555                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 556                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 557                 }
 558                 # Prepare a list of templates used by this page
 559                 $db =& wfGetDB( DB_SLAVE );
 560                 $page = $db->tableName( 'page' );
 561                 $links = $db->tableName( 'links' );
 562                 $id = $this->mTitle->getArticleID();
 563                 $sql = "SELECT page_namespace,page_title,page_id ".
 564                         "FROM $page,$links WHERE l_to=page_id AND l_from={$id} and page_namespace=".NS_TEMPLATE;
 565                 $res = $db->query( $sql, "EditPage::editform" );
 566
 567                 if ( $db->numRows( $res ) ) {
 568                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 569                         while ( $row = $db->fetchObject( $res ) ) {
 570                                 if ( $titleObj = Title::makeTitle( $row->page_namespace, $row->page_title ) ) {
 571                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 572                                 }
 573                         }
 574                         $templates .= '</ul>';
 575                 } else {
 576                         $templates = '';
 577                 }
 578
 579                 global $wgLivePreview, $wgStylePath;
 580                 /**
 581                  * Live Preview lets us fetch rendered preview page content and
 582                  * add it to the page without refreshing the whole page.
 583                  * Set up the button for it; if not supported by the browser
 584                  * it will fall through to the normal form submission method.
 585                  */
 586                 if( $wgLivePreview ) {
 587                         $wgOut->addHTML( '<script type="text/javascript" src="' .
 588                                 htmlspecialchars( $wgStylePath . '/common/preview.js' ) .
 589                                 '"></script>' . "\n" );
 590                         $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
 591                         $liveOnclick = 'onclick="return !livePreview('.
 592                                 'getElementById(\'wikiPreview\'),' .
 593                                 'editform.wpTextbox1.value,' .
 594                                 htmlspecialchars( '"' . $liveAction . '"' ) . ')"';
 595                 } else {
 596                         $liveOnclick = '';
 597                 }
 598
 599                 global $wgUseMetadataEdit ;
 600                 if ( $wgUseMetadataEdit )
 601                 {
 602                         $metadata = $this->mMetaData ;
 603                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
 604                         $helppage = Title::newFromText ( wfmsg("metadata_page") ) ;
 605                         $top = str_replace ( "$1" , $helppage->getInternalURL() , wfmsg("metadata") ) ;
 606                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
 607                 }
 608                 else $metadata = "" ;
 609
 610
 611                 $wgOut->addHTML( <<<END
 612 {$toolbar}
 613 <form id="editform" name="editform" method="post" action="$action"
 614 enctype="multipart/form-data">
 615 {$commentsubject}
 616 <textarea tabindex='1' accesskey="," name="wpTextbox1" rows='{$rows}'
 617 cols='{$cols}'{$ew}>
 618 END
 619 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox1 ) ) .
 620 "
 621 </textarea>
 622 {$metadata}
 623 <br />{$editsummary}
 624 {$checkboxhtml}
 625 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 626 " title=\"".wfMsg('tooltip-save')."\"/>
 627 <input tabindex='6' id='wpPreview' type='submit' $liveOnclick value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 628 " title=\"".wfMsg('tooltip-preview')."\"/>
 629 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 630                 $wgOut->addWikiText( $copywarn );
 631                 $wgOut->addHTML( "
 632 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 633 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 634
 635                 if ( $isConflict ) {
 636                         require_once( "DifferenceEngine.php" );
 637                         $wgOut->addHTML( "<h2>" . wfMsg( "yourdiff" ) . "</h2>\n" );
 638                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 639                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 640
 641                         $wgOut->addHTML( "<h2>" . wfMsg( "yourtext" ) . "</h2>
 642 <textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 643 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox2 ) ) .
 644 "
 645 </textarea>" );
 646                 }
 647                 $wgOut->addHTML( "</form>\n" );
 648                 if($formtype =="preview" && !$wgUser->getOption("previewontop")) {
 649                         $wgOut->addHTML('<div id="wikiPreview">' . $previewOutput . '</div>');
 650                 }
 651         }
 652
 653         function getPreviewText( $isConflict, $isCssJsSubpage ) {
 654                 global $wgOut, $wgUser, $wgTitle, $wgParser;
 655                 $previewhead='<h2>' . wfMsg( 'preview' ) . "</h2>\n<p><center><font color=\"#cc0000\">" .
 656                         wfMsg( 'note' ) . wfMsg( 'previewnote' ) . "</font></center></p>\n";
 657                 if ( $isConflict ) {
 658                         $previewhead.='<h2>' . wfMsg( 'previewconflict' ) .
 659                                 "</h2>\n";
 660                 }
 661
 662                 $parserOptions = ParserOptions::newFromUser( $wgUser );
 663                 $parserOptions->setEditSection( false );
 664                 $parserOptions->setEditSectionOnRightClick( false );
 665
 666                 # don't parse user css/js, show message about preview
 667                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 668
 669                 if ( $isCssJsSubpage ) {
 670                         if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 671                                 $previewtext = wfMsg('usercsspreview');
 672                         } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 673                                 $previewtext = wfMsg('userjspreview');
 674                         }
 675                         $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 676                         $wgOut->addHTML( $parserOutput->mText );
 677                         return $previewhead;
 678                 } else {
 679                         # if user want to see preview when he edit an article
 680                         if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 681                                 $this->textbox1 = $this->mArticle->getContent(true);
 682                         }
 683
 684                         $toparse = $this->textbox1 ;
 685                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
 686
 687                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
 688                                         $wgTitle, $parserOptions );
 689
 690                         $previewHTML = $parserOutput->mText;
 691                         $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 692                         $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 693                         return $previewhead . $previewHTML;
 694                 }
 695         }
 696
 697         /**
 698          * @todo document
 699          */
 700         function blockedIPpage() {
 701                 global $wgOut, $wgUser, $wgContLang, $wgIP;
 702
 703                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 704                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 705                 $wgOut->setArticleRelated( false );
 706
 707                 $id = $wgUser->blockedBy();
 708                 $reason = $wgUser->blockedFor();
 709                 $ip = $wgIP;
 710
 711                 if ( is_numeric( $id ) ) {
 712                         $name = User::whoIs( $id );
 713                 } else {
 714                         $name = $id;
 715                 }
 716                 $link = '[[' . $wgContLang->getNsText( Namespace::getUser() ) .
 717                   ":{$name}|{$name}]]";
 718
 719                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 720                 $wgOut->returnToMain( false );
 721         }
 722
 723         /**
 724          * @todo document
 725          */
 726         function userNotLoggedInPage() {
 727                 global $wgOut, $wgUser;
 728
 729                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 730                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 731                 $wgOut->setArticleRelated( false );
 732
 733                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 734                 $wgOut->returnToMain( false );
 735         }
 736
 737         /**
 738          * @todo document
 739          */
 740         function spamPage ( $match = false )
 741         {
 742                 global $wgOut;
 743                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 744                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 745                 $wgOut->setArticleRelated( false );
 746
 747                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 748                 if ( $match ) {
 749                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$match}</nowiki>" ) );
 750                 }
 751                 $wgOut->returnToMain( false );
 752         }
 753
 754         /**
 755          * Forks processes to scan the originating IP for an open proxy server
 756          * MemCached can be used to skip IPs that have already been scanned
 757          */
 758         function proxyCheck() {
 759                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 760                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 761
 762                 if ( !$wgBlockOpenProxies ) {
 763                         return;
 764                 }
 765
 766                 # Get MemCached key
 767                 $skip = false;
 768                 if ( $wgUseMemCached ) {
 769                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 770                         $mcValue = $wgMemc->get( $mcKey );
 771                         if ( $mcValue ) {
 772                                 $skip = true;
 773                         }
 774                 }
 775
 776                 # Fork the processes
 777                 if ( !$skip ) {
 778                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 779                         $iphash = md5( $wgIP . $wgProxyKey );
 780                         $url = $title->getFullURL( 'ip='.$iphash );
 781
 782                         foreach ( $wgProxyPorts as $port ) {
 783                                 $params = implode( ' ', array(
 784                                                         escapeshellarg( $wgProxyScriptPath ),
 785                                                         escapeshellarg( $wgIP ),
 786                                                         escapeshellarg( $port ),
 787                                                         escapeshellarg( $url )
 788                                                         ));
 789                                 exec( "php $params &>/dev/null &" );
 790                         }
 791                         # Set MemCached key
 792                         if ( $wgUseMemCached ) {
 793                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 794                         }
 795                 }
 796         }
 797
 798         /**
 799          * @access private
 800          * @todo document
 801          */
 802         function mergeChangesInto( &$text ){
 803                 $yourtext = $this->mArticle->fetchRevisionText();
 804
 805                 $db =& wfGetDB( DB_SLAVE );
 806                 $oldText = $this->mArticle->fetchRevisionText(
 807                         $db->timestamp( $this->edittime ),
 808                         'rev_timestamp' );
 809
 810                 if(wfMerge($oldText, $text, $yourtext, $result)){
 811                         $text = $result;
 812                         return true;
 813                 } else {
 814                         return false;
 815                 }
 816         }
 817
 818
 819         function checkUnicodeCompliantBrowser() {
 820                 global $wgBrowserBlackList;
 821                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
 822                 foreach ( $wgBrowserBlackList as $browser ) {
 823                         if ( preg_match($browser, $currentbrowser) ) {
 824                                 return false;
 825                         }
 826                 }
 827                 return true;
 828         }
 829
 830         /**
 831          * Format an anchor fragment as it would appear for a given section name
 832          * @param string $text
 833          * @return string
 834          * @access private
 835          */
 836         function sectionAnchor( $text ) {
 837                 global $wgInputEncoding;
 838                 $headline = do_html_entity_decode( $text, ENT_COMPAT, $wgInputEncoding );
 839                 # strip out HTML
 840                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
 841                 $headline = trim( $headline );
 842                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
 843                 $replacearray = array(
 844                         '%3A' => ':',
 845                         '%' => '.'
 846                 );
 847                 return str_replace(
 848                         array_keys( $replacearray ),
 849                         array_values( $replacearray ),
 850                         $sectionanchor );
 851         }
 852
 853         /**
 854          * Shows a bulletin board style toolbar for common editing functions.
 855          * It can be disabled in the user preferences.
 856          * The necessary JavaScript code can be found in style/wikibits.js.
 857          */
 858         function getEditToolbar() {
 859                 global $wgStylePath, $wgLang, $wgMimeType;
 860
 861                 /**
 862                  * toolarray an array of arrays which each include the filename of
 863                  * the button image (without path), the opening tag, the closing tag,
 864                  * and optionally a sample text that is inserted between the two when no
 865                  * selection is highlighted.
 866                  * The tip text is shown when the user moves the mouse over the button.
 867                  *
 868                  * Already here are accesskeys (key), which are not used yet until someone
 869                  * can figure out a way to make them work in IE. However, we should make
 870                  * sure these keys are not defined on the edit page.
 871                  */
 872                 $toolarray=array(
 873                         array(  'image'=>'button_bold.png',
 874                                         'open'  =>      "\'\'\'",
 875                                         'close' =>      "\'\'\'",
 876                                         'sample'=>      wfMsg('bold_sample'),
 877                                         'tip'   =>      wfMsg('bold_tip'),
 878                                         'key'   =>      'B'
 879                                 ),
 880                         array(  'image'=>'button_italic.png',
 881                                         'open'  =>      "\'\'",
 882                                         'close' =>      "\'\'",
 883                                         'sample'=>      wfMsg('italic_sample'),
 884                                         'tip'   =>      wfMsg('italic_tip'),
 885                                         'key'   =>      'I'
 886                                 ),
 887                         array(  'image'=>'button_link.png',
 888                                         'open'  =>      '[[',
 889                                         'close' =>      ']]',
 890                                         'sample'=>      wfMsg('link_sample'),
 891                                         'tip'   =>      wfMsg('link_tip'),
 892                                         'key'   =>      'L'
 893                                 ),
 894                         array(  'image'=>'button_extlink.png',
 895                                         'open'  =>      '[',
 896                                         'close' =>      ']',
 897                                         'sample'=>      wfMsg('extlink_sample'),
 898                                         'tip'   =>      wfMsg('extlink_tip'),
 899                                         'key'   =>      'X'
 900                                 ),
 901                         array(  'image'=>'button_headline.png',
 902                                         'open'  =>      "\\n== ",
 903                                         'close' =>      " ==\\n",
 904                                         'sample'=>      wfMsg('headline_sample'),
 905                                         'tip'   =>      wfMsg('headline_tip'),
 906                                         'key'   =>      'H'
 907                                 ),
 908                         array(  'image'=>'button_image.png',
 909                                         'open'  =>      '[['.$wgLang->getNsText(NS_IMAGE).":",
 910                                         'close' =>      ']]',
 911                                         'sample'=>      wfMsg('image_sample'),
 912                                         'tip'   =>      wfMsg('image_tip'),
 913                                         'key'   =>      'D'
 914                                 ),
 915                         array(  'image' =>      'button_media.png',
 916                                         'open'  =>      '[['.$wgLang->getNsText(NS_MEDIA).':',
 917                                         'close' =>      ']]',
 918                                         'sample'=>      wfMsg('media_sample'),
 919                                         'tip'   =>      wfMsg('media_tip'),
 920                                         'key'   =>      'M'
 921                                 ),
 922                         array(  'image' =>      'button_math.png',
 923                                         'open'  =>      "\\<math\\>",
 924                                         'close' =>      "\\</math\\>",
 925                                         'sample'=>      wfMsg('math_sample'),
 926                                         'tip'   =>      wfMsg('math_tip'),
 927                                         'key'   =>      'C'
 928                                 ),
 929                         array(  'image' =>      'button_nowiki.png',
 930                                         'open'  =>      "\\<nowiki\\>",
 931                                         'close' =>      "\\</nowiki\\>",
 932                                         'sample'=>      wfMsg('nowiki_sample'),
 933                                         'tip'   =>      wfMsg('nowiki_tip'),
 934                                         'key'   =>      'N'
 935                                 ),
 936                         array(  'image' =>      'button_sig.png',
 937                                         'open'  =>      '--~~~~',
 938                                         'close' =>      '',
 939                                         'sample'=>      '',
 940                                         'tip'   =>      wfMsg('sig_tip'),
 941                                         'key'   =>      'Y'
 942                                 ),
 943                         array(  'image' =>      'button_hr.png',
 944                                         'open'  =>      "\\n----\\n",
 945                                         'close' =>      '',
 946                                         'sample'=>      '',
 947                                         'tip'   =>      wfMsg('hr_tip'),
 948                                         'key'   =>      'R'
 949                                 )
 950                 );
 951                 $toolbar ="<script type='text/javascript'>\n/*<![CDATA[*/\n";
 952
 953                 $toolbar.="document.writeln(\"<div id='toolbar'>\");\n";
 954                 foreach($toolarray as $tool) {
 955
 956                         $image=$wgStylePath.'/common/images/'.$tool['image'];
 957                         $open=$tool['open'];
 958                         $close=$tool['close'];
 959                         $sample = addslashes( $tool['sample'] );
 960
 961                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
 962                         // Older browsers show a "speedtip" type message only for ALT.
 963                         // Ideally these should be different, realistically they
 964                         // probably don't need to be.
 965                         $tip = addslashes( $tool['tip'] );
 966
 967                         #$key = $tool["key"];
 968
 969                         $toolbar.="addButton('$image','$tip','$open','$close','$sample');\n";
 970                 }
 971
 972                 $toolbar.="addInfobox('" . addslashes( wfMsg( "infobox" ) ) . "','" . addslashes(wfMsg("infobox_alert")) . "');\n";
 973                 $toolbar.="document.writeln(\"</div>\");\n";
 974
 975                 $toolbar.="/*]]>*/\n</script>";
 976                 return $toolbar;
 977         }
 978
 979         /**
 980          * Output preview text only. This can be sucked into the edit page
 981          * via JavaScript, and saves the server time rendering the skin as
 982          * well as theoretically being more robust on the client (doesn't
 983          * disturb the edit box's undo history, won't eat your text on
 984          * failure, etc).
 985          *
 986          * @todo This doesn't include category or interlanguage links.
 987          *       Would need to enhance it a bit, maybe wrap them in XML
 988          *       or something... that might also require more skin
 989          *       initialization, so check whether that's a problem.
 990          */
 991         function livePreview() {
 992                 global $wgOut;
 993                 $wgOut->disable();
 994                 header( 'Content-type: text/xml' );
 995                 header( 'Cache-control: no-cache' );
 996                 # FIXME
 997                 echo $this->getPreviewText( false, false );
 998         }
 999
1000 }
1001
1002 ?>