includes/EditPage.php

   1 <?php
   2 /**
   3  * Contain the EditPage class
   4  * @package MediaWiki
   5  * @version $Id$
   6  */
   7
   8 /**
   9  * Splitting edit page/HTML interface from Article...
  10  * The actual database and text munging is still in Article,
  11  * but it should get easier to call those from alternate
  12  * interfaces.
  13  *
  14  * @package MediaWiki
  15  */
  16
  17 class EditPage {
  18         var $mArticle;
  19         var $mTitle;
  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 gets called for "action=edit".
  40          */
  41         function edit() {
  42                 global $wgOut, $wgUser, $wgWhitelistEdit, $wgRequest;
  43                 // this is not an article
  44                 $wgOut->setArticleFlag(false);
  45
  46                 $this->importFormData( $wgRequest );
  47
  48                 if ( ! $this->mTitle->userCanEdit() ) {
  49                         $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
  50                         return;
  51                 }
  52                 if ( $wgUser->isBlocked() ) {
  53                         $this->blockedIPpage();
  54                         return;
  55                 }
  56                 if ( !$wgUser->getID() && $wgWhitelistEdit ) {
  57                         $this->userNotLoggedInPage();
  58                         return;
  59                 }
  60                 if ( wfReadOnly() ) {
  61                         if( $this->save || $this->preview ) {
  62                                 $this->editForm( 'preview' );
  63                         } else {
  64                                 $wgOut->readOnlyPage( $this->mArticle->getContent( true ) );
  65                         }
  66                         return;
  67                 }
  68                 if ( $this->save ) {
  69                         $this->editForm( 'save' );
  70                 } else if ( $this->preview or $wgUser->getOption('previewonfirst')) {
  71                         $this->editForm( 'preview' );
  72                 } else { # First time through
  73                         $this->editForm( 'initial' );
  74                 }
  75         }
  76
  77         /**
  78          * @todo document
  79          */
  80         function importFormData( &$request ) {
  81                 # These fields need to be checked for encoding.
  82                 # Also remove trailing whitespace, but don't remove _initial_
  83                 # whitespace from the text boxes. This may be significant formatting.
  84                 $this->textbox1 = rtrim( $request->getText( 'wpTextbox1' ) );
  85                 $this->textbox2 = rtrim( $request->getText( 'wpTextbox2' ) );
  86                 $this->summary = trim( $request->getText( 'wpSummary' ) );
  87
  88                 $this->edittime = $request->getVal( 'wpEdittime' );
  89                 if( !preg_match( '/^\d{14}$/', $this->edittime )) $this->edittime = '';
  90
  91                 $this->preview = $request->getCheck( 'wpPreview' );
  92                 $this->save = $request->wasPosted() && !$this->preview;
  93                 $this->minoredit = $request->getCheck( 'wpMinoredit' );
  94                 $this->watchthis = $request->getCheck( 'wpWatchthis' );
  95
  96                 $this->oldid = $request->getInt( 'oldid' );
  97
  98                 # Section edit can come from either the form or a link
  99                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 100         }
 101
 102         /**
 103          * Since there is only one text field on the edit form,
 104          * pressing <enter> will cause the form to be submitted, but
 105          * the submit button value won't appear in the query, so we
 106          * Fake it here before going back to edit().  This is kind of
 107          * ugly, but it helps some old URLs to still work.
 108          */
 109         function submit() {
 110                 if( !$this->preview ) $this->save = true;
 111
 112                 $this->edit();
 113         }
 114
 115         /**
 116          * The edit form is self-submitting, so that when things like
 117          * preview and edit conflicts occur, we get the same form back
 118          * with the extra stuff added.  Only when the final submission
 119          * is made and all is well do we actually save and redirect to
 120          * the newly-edited page.
 121          *
 122          * @param string $formtype Type of form either : save, initial or preview
 123          */
 124         function editForm( $formtype ) {
 125                 global $wgOut, $wgUser;
 126                 global $wgLang, $wgContLang, $wgParser, $wgTitle;
 127                 global $wgAllowAnonymousMinor;
 128                 global $wgWhitelistEdit;
 129                 global $wgSpamRegex, $wgFilterCallback;
 130                 global $wgUseLatin1;
 131
 132                 $sk = $wgUser->getSkin();
 133                 $isConflict = false;
 134                 // css / js subpages of user pages get a special treatment
 135                 $isCssJsSubpage = (Namespace::getUser() == $wgTitle->getNamespace() and preg_match("/\\.(css|js)$/", $wgTitle->getText() ));
 136
 137                 if(!$this->mTitle->getArticleID()) { # new article
 138                         $wgOut->addWikiText(wfmsg('newarticletext'));
 139                 }
 140
 141                 if( Namespace::isTalk( $this->mTitle->getNamespace() ) ) {
 142                         $wgOut->addWikiText(wfmsg('talkpagetext'));
 143                 }
 144
 145                 # Attempt submission here.  This will check for edit conflicts,
 146                 # and redundantly check for locked database, blocked IPs, etc.
 147                 # that edit() already checked just in case someone tries to sneak
 148                 # in the back door with a hand-edited submission URL.
 149
 150                 if ( 'save' == $formtype ) {
 151                         # Check for spam
 152                         if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 153                                 $this->spamPage ( $matches );
 154                                 return;
 155                         }
 156                         if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 157                                 # Error messages or other handling should be performed by the filter function
 158                                 return;
 159                         }
 160                         if ( $wgUser->isBlocked() ) {
 161                                 $this->blockedIPpage();
 162                                 return;
 163                         }
 164                         if ( !$wgUser->getID() && $wgWhitelistEdit ) {
 165                                 $this->userNotLoggedInPage();
 166                                 return;
 167                         }
 168                         if ( wfReadOnly() ) {
 169                                 $wgOut->readOnlyPage();
 170                                 return;
 171                         }
 172
 173                         # If article is new, insert it.
 174                         $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 175                         if ( 0 == $aid ) {
 176                                 # Don't save a new article if it's blank.
 177                                 if ( ( '' == $this->textbox1 ) ||
 178                                   ( wfMsg( 'newarticletext' ) == $this->textbox1 ) ) {
 179                                         $wgOut->redirect( $this->mTitle->getFullURL() );
 180                                         return;
 181                                 }
 182                                 if (wfRunHooks('ArticleSave', $this->mArticle, $wgUser, $this->textbox1,
 183                                                            $this->summary, $this->minoredit, $this->watchthis, NULL))
 184                                 {
 185                                         $this->mArticle->insertNewArticle( $this->textbox1, $this->summary,
 186                                                                                                            $this->minoredit, $this->watchthis );
 187                                         wfRunHooks('ArticleSaveComplete', $this->mArticle, $wgUser, $this->textbox1,
 188                                                            $this->summary, $this->minoredit, $this->watchthis, NULL);
 189                                 }
 190                                 return;
 191                         }
 192
 193                         # Article exists. Check for edit conflict.
 194
 195                         $this->mArticle->clear(); # Force reload of dates, etc.
 196                         $this->mArticle->forUpdate( true ); # Lock the article
 197
 198                         if( ( $this->section != 'new' ) &&
 199                                 ($this->mArticle->getTimestamp() != $this->edittime ) ) {
 200                                 $isConflict = true;
 201                         }
 202                         $userid = $wgUser->getID();
 203
 204                         if ( $isConflict) {
 205                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 206                                         $this->section, $this->textbox1, $this->summary, $this->edittime);
 207                         }
 208                         else {
 209                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 210                                         $this->section, $this->textbox1, $this->summary);
 211                         }
 212                         # Suppress edit conflict with self
 213
 214                         if ( ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 215                                 $isConflict = false;
 216                         } else {
 217                                 # switch from section editing to normal editing in edit conflict
 218                                 if($isConflict) {
 219                                         # Attempt merge
 220                                         if( $this->mergeChangesInto( $text ) ){
 221                                                 // Successful merge! Maybe we should tell the user the good news?
 222                                                 $isConflict = false;
 223                                         } else {
 224                                                 $this->section = '';
 225                                                 $this->textbox1 = $text;
 226                                         }
 227                                 }
 228                         }
 229                         if ( ! $isConflict ) {
 230                                 # All's well
 231                                 $sectionanchor = '';
 232                                 if( $this->section == 'new' ) {
 233                                         if( $this->summary != '' ) {
 234                                                 $sectionanchor = $this->sectionAnchor( $this->summary );
 235                                         }
 236                                 } elseif( $this->section != '' ) {
 237                                         # Try to get a section anchor from the section source, redirect to edited section if header found
 238                                         # XXX: might be better to integrate this into Article::getTextOfLastEditWithSectionReplacedOrAdded
 239                                         # for duplicate heading checking and maybe parsing
 240                                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 241                                         # we can't deal with anchors, includes, html etc in the header for now,
 242                                         # headline would need to be parsed to improve this
 243                                         #if($hasmatch and strlen($matches[2]) > 0 and !preg_match( "/[\\['{<>]/", $matches[2])) {
 244                                         if($hasmatch and strlen($matches[2]) > 0) {
 245                                                 $sectionanchor = $this->sectionAnchor( $matches[2] );
 246                                         }
 247                                 }
 248
 249                                 if (wfRunHooks('ArticleSave', $this, $wgUser, $text, $this->summary,
 250                                                            $this->minoredit, $this->watchthis, $sectionanchor))
 251                                 {
 252                                         # update the article here
 253                                         if($this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 254                                                                                                            $this->watchthis, '', $sectionanchor ))
 255                                         {
 256                                                 wfRunHooks('ArticleSaveComplete', $this, $wgUser, $text, $this->summary,
 257                                                                    $this->minoredit, $this->watchthis, $sectionanchor);
 258                                                 return;
 259                                         }
 260                                         else
 261                                           $isConflict = true;
 262                                 }
 263                         }
 264                 }
 265                 # First time through: get contents, set time for conflict
 266                 # checking, etc.
 267
 268                 if ( 'initial' == $formtype ) {
 269                         $this->edittime = $this->mArticle->getTimestamp();
 270                         $this->textbox1 = $this->mArticle->getContent( true );
 271                         $this->summary = '';
 272                         $this->proxyCheck();
 273                 }
 274                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 275
 276                 # Enabled article-related sidebar, toplinks, etc.
 277                 $wgOut->setArticleRelated( true );
 278
 279                 if ( $isConflict ) {
 280                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 281                         $wgOut->setPageTitle( $s );
 282                         $wgOut->addHTML( wfMsg( 'explainconflict' ) );
 283
 284                         $this->textbox2 = $this->textbox1;
 285                         $this->textbox1 = $this->mArticle->getContent( true );
 286                         $this->edittime = $this->mArticle->getTimestamp();
 287                 } else {
 288
 289                         if( $this->section != '' ) {
 290                                 if( $this->section == 'new' ) {
 291                                         $s = wfMsg('editingcomment', $this->mTitle->getPrefixedText() );
 292                                 } else {
 293                                         $s = wfMsg('editingsection', $this->mTitle->getPrefixedText() );
 294                                 }
 295                                 if(!$this->preview) {
 296                                         $sectitle=preg_match("/^=+(.*?)=+/mi",
 297                                         $this->textbox1,
 298                                         $matches);
 299                                         if( !empty( $matches[1] ) ) {
 300                                                 $this->summary = "/* ". trim($matches[1])." */ ";
 301                                         }
 302                                 }
 303                         } else {
 304                                 $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 305                         }
 306                         $wgOut->setPageTitle( $s );
 307                         if ( !$wgUseLatin1 && !$this->checkUnicodeCompliantBrowser() ) {
 308                                 $this->mArticle->setOldSubtitle();
 309                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 310                         }
 311                         if ( $this->oldid ) {
 312                                 $this->mArticle->setOldSubtitle();
 313                                 $wgOut->addHTML( wfMsg( 'editingold' ) );
 314                         }
 315                 }
 316
 317                 if( wfReadOnly() ) {
 318                         $wgOut->addHTML( '<strong>' .
 319                         wfMsg( 'readonlywarning' ) .
 320                         "</strong>" );
 321                 } else if ( $isCssJsSubpage and 'preview' != $formtype) {
 322                         $wgOut->addHTML( wfMsg( 'usercssjsyoucanpreview' ));
 323                 }
 324                 if( $this->mTitle->isProtected('edit') ) {
 325                         $wgOut->addHTML( '<strong>' . wfMsg( 'protectedpagewarning' ) .
 326                           "</strong><br />\n" );
 327                 }
 328
 329                 $kblength = (int)(strlen( $this->textbox1 ) / 1024);
 330                 if( $kblength > 29 ) {
 331                         $wgOut->addHTML( '<strong>' .
 332                                 wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) )
 333                                 . '</strong>' );
 334                 }
 335
 336                 $rows = $wgUser->getOption( 'rows' );
 337                 $cols = $wgUser->getOption( 'cols' );
 338
 339                 $ew = $wgUser->getOption( 'editwidth' );
 340                 if ( $ew ) $ew = " style=\"width:100%\"";
 341                 else $ew = '';
 342
 343                 $q = 'action=submit';
 344                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 345                 $action = $this->mTitle->escapeLocalURL( $q );
 346
 347                 $summary = wfMsg('summary');
 348                 $subject = wfMsg('subject');
 349                 $minor   = wfMsg('minoredit');
 350                 $watchthis = wfMsg ('watchthis');
 351                 $save = wfMsg('savearticle');
 352                 $prev = wfMsg('showpreview');
 353
 354                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
 355                                 wfMsg('cancel') );
 356                 $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
 357                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
 358                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
 359                         htmlspecialchars( wfMsg( 'newwindow' ) );
 360
 361                 global $wgRightsText;
 362                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
 363                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
 364                                 '[[' . wfMsg( 'copyrightpage' ) . ']]',
 365                                 $wgRightsText ) . "\n</div>";
 366
 367                 if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
 368                         # prepare toolbar for edit buttons
 369                         $toolbar = $this->getEditToolbar();
 370                 } else {
 371                         $toolbar = '';
 372                 }
 373
 374                 // activate checkboxes if user wants them to be always active
 375                 if( !$this->preview ) {
 376                         if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
 377                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
 378
 379                         // activate checkbox also if user is already watching the page,
 380                         // require wpWatchthis to be unset so that second condition is not
 381                         // checked unnecessarily
 382                         if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
 383                 }
 384
 385                 $minoredithtml = '';
 386
 387                 if ( 0 != $wgUser->getID() || $wgAllowAnonymousMinor ) {
 388                         $minoredithtml =
 389                                 "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
 390                                 " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
 391                                 "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
 392                 }
 393
 394                 $watchhtml = '';
 395
 396                 if ( 0 != $wgUser->getID() ) {
 397                         $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
 398                                 " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
 399                                 "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
 400                 }
 401
 402                 $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 403
 404                 if ( 'preview' == $formtype) {
 405                         $previewhead='<h2>' . wfMsg( 'preview' ) . "</h2>\n<p><center><font color=\"#cc0000\">" .
 406                                 wfMsg( 'note' ) . wfMsg( 'previewnote' ) . "</font></center></p>\n";
 407                         if ( $isConflict ) {
 408                                 $previewhead.='<h2>' . wfMsg( 'previewconflict' ) .
 409                                         "</h2>\n";
 410                         }
 411
 412                         $parserOptions = ParserOptions::newFromUser( $wgUser );
 413                         $parserOptions->setEditSection( false );
 414                         $parserOptions->setEditSectionOnRightClick( false );
 415
 416                         # don't parse user css/js, show message about preview
 417                         # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 418
 419                         if ( $isCssJsSubpage ) {
 420                                 if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 421                                         $previewtext = wfMsg('usercsspreview');
 422                                 } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 423                                         $previewtext = wfMsg('userjspreview');
 424                                 }
 425                                 $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 426                                 $wgOut->addHTML( $parserOutput->mText );
 427                         } else {
 428                                 # if user want to see preview when he edit an article
 429                                 if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 430                                         $this->textbox1 = $this->mArticle->getContent(true);
 431                                 }
 432
 433                                 $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $this->textbox1 ) ."\n\n",
 434                                                 $wgTitle, $parserOptions );
 435
 436                                 $previewHTML = $parserOutput->mText;
 437
 438                                 if($wgUser->getOption('previewontop')) {
 439                                         $wgOut->addHTML($previewhead);
 440                                         $wgOut->addHTML($previewHTML);
 441                                 }
 442                                 $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 443                                 $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 444                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 445                         }
 446                 }
 447
 448                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 449                 # Otherwise, show a summary field at the bottom
 450                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
 451                         if( $this->section == 'new' ) {
 452                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 453                                 $editsummary = '';
 454                         } else {
 455                                 $commentsubject = '';
 456                                 $editsummary="{$summary}: <input tabindex='3' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 457                         }
 458
 459                 if( !$this->preview ) {
 460                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 461                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 462                 }
 463                 # Prepare a list of templates used by this page
 464                 $db =& wfGetDB( DB_SLAVE );
 465                 $cur = $db->tableName( 'cur' );
 466                 $links = $db->tableName( 'links' );
 467                 $id = $this->mTitle->getArticleID();
 468                 $sql = "SELECT cur_namespace,cur_title,cur_id ".
 469                         "FROM $cur,$links WHERE l_to=cur_id AND l_from={$id} and cur_namespace=".NS_TEMPLATE;
 470                 $res = $db->query( $sql, "EditPage::editform" );
 471
 472                 if ( $db->numRows( $res ) ) {
 473                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 474                         while ( $row = $db->fetchObject( $res ) ) {
 475                                 if ( $titleObj = Title::makeTitle( $row->cur_namespace, $row->cur_title ) ) {
 476                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 477                                 }
 478                         }
 479                         $templates .= '</ul>';
 480                 } else {
 481                         $templates = '';
 482                 }
 483                 $wgOut->addHTML( "
 484 {$toolbar}
 485 <form id=\"editform\" name=\"editform\" method=\"post\" action=\"$action\"
 486 enctype=\"multipart/form-data\">
 487 {$commentsubject}
 488 <textarea tabindex='1' accesskey=\",\" name=\"wpTextbox1\" rows='{$rows}'
 489 cols='{$cols}'{$ew}>" .
 490 htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox1 ) ) .
 491 "
 492 </textarea>
 493 <br />{$editsummary}
 494 {$checkboxhtml}
 495 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 496 " title=\"".wfMsg('tooltip-save')."\"/>
 497 <input tabindex='6' id='wpPreview' type='submit' value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 498 " title=\"".wfMsg('tooltip-preview')."\"/>
 499 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 500                 $wgOut->addWikiText( $copywarn );
 501                 $wgOut->addHTML( "
 502 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 503 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 504
 505                 if ( $isConflict ) {
 506                         require_once( "DifferenceEngine.php" );
 507                         $wgOut->addHTML( "<h2>" . wfMsg( "yourdiff" ) . "</h2>\n" );
 508                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 509                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 510
 511                         $wgOut->addHTML( "<h2>" . wfMsg( "yourtext" ) . "</h2>
 512 <textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 513 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox2 ) ) .
 514 "
 515 </textarea>" );
 516                 }
 517                 $wgOut->addHTML( "</form>\n" );
 518                 if($formtype =="preview" && !$wgUser->getOption("previewontop")) {
 519                         $wgOut->addHTML($previewhead);
 520                         $wgOut->addHTML($previewHTML);
 521                 }
 522         }
 523
 524         /**
 525          * @todo document
 526          */
 527         function blockedIPpage() {
 528                 global $wgOut, $wgUser, $wgContLang, $wgIP;
 529
 530                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 531                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 532                 $wgOut->setArticleRelated( false );
 533
 534                 $id = $wgUser->blockedBy();
 535                 $reason = $wgUser->blockedFor();
 536                 $ip = $wgIP;
 537
 538                 if ( is_numeric( $id ) ) {
 539                         $name = User::whoIs( $id );
 540                 } else {
 541                         $name = $id;
 542                 }
 543                 $link = '[[' . $wgContLang->getNsText( Namespace::getUser() ) .
 544                   ":{$name}|{$name}]]";
 545
 546                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 547                 $wgOut->returnToMain( false );
 548         }
 549
 550         /**
 551          * @todo document
 552          */
 553         function userNotLoggedInPage() {
 554                 global $wgOut, $wgUser;
 555
 556                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 557                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 558                 $wgOut->setArticleRelated( false );
 559
 560                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 561                 $wgOut->returnToMain( false );
 562         }
 563
 564         /**
 565          * @todo document
 566          */
 567         function spamPage ( $matches = array() )
 568         {
 569                 global $wgOut;
 570                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 571                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 572                 $wgOut->setArticleRelated( false );
 573
 574                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 575                 if ( isset ( $matches[0] ) ) {
 576                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$matches[0]}</nowiki>" ) );
 577                 }
 578                 $wgOut->returnToMain( false );
 579         }
 580
 581         /**
 582          * Forks processes to scan the originating IP for an open proxy server
 583          * MemCached can be used to skip IPs that have already been scanned
 584          */
 585         function proxyCheck() {
 586                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 587                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 588
 589                 if ( !$wgBlockOpenProxies ) {
 590                         return;
 591                 }
 592
 593                 # Get MemCached key
 594                 $skip = false;
 595                 if ( $wgUseMemCached ) {
 596                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 597                         $mcValue = $wgMemc->get( $mcKey );
 598                         if ( $mcValue ) {
 599                                 $skip = true;
 600                         }
 601                 }
 602
 603                 # Fork the processes
 604                 if ( !$skip ) {
 605                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 606                         $iphash = md5( $wgIP . $wgProxyKey );
 607                         $url = $title->getFullURL( 'ip='.$iphash );
 608
 609                         foreach ( $wgProxyPorts as $port ) {
 610                                 $params = implode( ' ', array(
 611                                                         escapeshellarg( $wgProxyScriptPath ),
 612                                                         escapeshellarg( $wgIP ),
 613                                                         escapeshellarg( $port ),
 614                                                         escapeshellarg( $url )
 615                                                         ));
 616                                 exec( "php $params &>/dev/null &" );
 617                         }
 618                         # Set MemCached key
 619                         if ( $wgUseMemCached ) {
 620                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 621                         }
 622                 }
 623         }
 624
 625         /**
 626          * @access private
 627          * @todo document
 628          */
 629         function mergeChangesInto( &$text ){
 630                 $fname = 'EditPage::mergeChangesInto';
 631                 $oldDate = $this->edittime;
 632                 $dbw =& wfGetDB( DB_MASTER );
 633                 $obj = $dbw->selectRow( 'cur', array( 'cur_text' ), array( 'cur_id' => $this->mTitle->getArticleID() ),
 634                         $fname, 'FOR UPDATE' );
 635
 636                 $yourtext = $obj->cur_text;
 637                 $ns = $this->mTitle->getNamespace();
 638                 $title = $this->mTitle->getDBkey();
 639                 $obj = $dbw->selectRow( 'old',
 640                         array( 'old_text','old_flags'),
 641                         array( 'old_namespace' => $ns, 'old_title' => $title,
 642                                 'old_timestamp' => $dbw->timestamp($oldDate)),
 643                         $fname );
 644                 $oldText = Article::getRevisionText( $obj );
 645
 646                 if(wfMerge($oldText, $text, $yourtext, $result)){
 647                         $text = $result;
 648                         return true;
 649                 } else {
 650                         return false;
 651                 }
 652         }
 653
 654
 655         function checkUnicodeCompliantBrowser() {
 656                 global $wgBrowserBlackList;
 657                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
 658                 foreach ( $wgBrowserBlackList as $browser ) {
 659                         if ( preg_match($browser, $currentbrowser) ) {
 660                                 return false;
 661                         }
 662                 }
 663                 return true;
 664         }
 665
 666         /**
 667          * Format an anchor fragment as it would appear for a given section name
 668          * @param string $text
 669          * @return string
 670          * @access private
 671          */
 672         function sectionAnchor( $text ) {
 673                 global $wgInputEncoding;
 674                 $headline = do_html_entity_decode( $text, ENT_COMPAT, $wgInputEncoding );
 675                 # strip out HTML
 676                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
 677                 $headline = trim( $headline );
 678                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
 679                 $replacearray = array(
 680                         '%3A' => ':',
 681                         '%' => '.'
 682                 );
 683                 return str_replace(
 684                         array_keys( $replacearray ),
 685                         array_values( $replacearray ),
 686                         $sectionanchor );
 687         }
 688
 689         /**
 690          * Shows a bulletin board style toolbar for common editing functions.
 691          * It can be disabled in the user preferences.
 692          * The necessary JavaScript code can be found in style/wikibits.js.
 693          */
 694         function getEditToolbar() {
 695                 global $wgStylePath, $wgLang, $wgMimeType;
 696
 697                 /**
 698                  * toolarray an array of arrays which each include the filename of
 699                  * the button image (without path), the opening tag, the closing tag,
 700                  * and optionally a sample text that is inserted between the two when no
 701                  * selection is highlighted.
 702                  * The tip text is shown when the user moves the mouse over the button.
 703                  *
 704                  * Already here are accesskeys (key), which are not used yet until someone
 705                  * can figure out a way to make them work in IE. However, we should make
 706                  * sure these keys are not defined on the edit page.
 707                  */
 708                 $toolarray=array(
 709                         array(  'image'=>'button_bold.png',
 710                                         'open'  =>      "\'\'\'",
 711                                         'close' =>      "\'\'\'",
 712                                         'sample'=>      wfMsg('bold_sample'),
 713                                         'tip'   =>      wfMsg('bold_tip'),
 714                                         'key'   =>      'B'
 715                                 ),
 716                         array(  'image'=>'button_italic.png',
 717                                         'open'  =>      "\'\'",
 718                                         'close' =>      "\'\'",
 719                                         'sample'=>      wfMsg('italic_sample'),
 720                                         'tip'   =>      wfMsg('italic_tip'),
 721                                         'key'   =>      'I'
 722                                 ),
 723                         array(  'image'=>'button_link.png',
 724                                         'open'  =>      '[[',
 725                                         'close' =>      ']]',
 726                                         'sample'=>      wfMsg('link_sample'),
 727                                         'tip'   =>      wfMsg('link_tip'),
 728                                         'key'   =>      'L'
 729                                 ),
 730                         array(  'image'=>'button_extlink.png',
 731                                         'open'  =>      '[',
 732                                         'close' =>      ']',
 733                                         'sample'=>      wfMsg('extlink_sample'),
 734                                         'tip'   =>      wfMsg('extlink_tip'),
 735                                         'key'   =>      'X'
 736                                 ),
 737                         array(  'image'=>'button_headline.png',
 738                                         'open'  =>      "\\n== ",
 739                                         'close' =>      " ==\\n",
 740                                         'sample'=>      wfMsg('headline_sample'),
 741                                         'tip'   =>      wfMsg('headline_tip'),
 742                                         'key'   =>      'H'
 743                                 ),
 744                         array(  'image'=>'button_image.png',
 745                                         'open'  =>      '[['.$wgLang->getNsText(NS_IMAGE).":",
 746                                         'close' =>      ']]',
 747                                         'sample'=>      wfMsg('image_sample'),
 748                                         'tip'   =>      wfMsg('image_tip'),
 749                                         'key'   =>      'D'
 750                                 ),
 751                         array(  'image' =>      'button_media.png',
 752                                         'open'  =>      '[['.$wgLang->getNsText(NS_MEDIA).':',
 753                                         'close' =>      ']]',
 754                                         'sample'=>      wfMsg('media_sample'),
 755                                         'tip'   =>      wfMsg('media_tip'),
 756                                         'key'   =>      'M'
 757                                 ),
 758                         array(  'image' =>      'button_math.png',
 759                                         'open'  =>      "\\<math\\>",
 760                                         'close' =>      "\\</math\\>",
 761                                         'sample'=>      wfMsg('math_sample'),
 762                                         'tip'   =>      wfMsg('math_tip'),
 763                                         'key'   =>      'C'
 764                                 ),
 765                         array(  'image' =>      'button_nowiki.png',
 766                                         'open'  =>      "\\<nowiki\\>",
 767                                         'close' =>      "\\</nowiki\\>",
 768                                         'sample'=>      wfMsg('nowiki_sample'),
 769                                         'tip'   =>      wfMsg('nowiki_tip'),
 770                                         'key'   =>      'N'
 771                                 ),
 772                         array(  'image' =>      'button_sig.png',
 773                                         'open'  =>      '--~~~~',
 774                                         'close' =>      '',
 775                                         'sample'=>      '',
 776                                         'tip'   =>      wfMsg('sig_tip'),
 777                                         'key'   =>      'Y'
 778                                 ),
 779                         array(  'image' =>      'button_hr.png',
 780                                         'open'  =>      "\\n----\\n",
 781                                         'close' =>      '',
 782                                         'sample'=>      '',
 783                                         'tip'   =>      wfMsg('hr_tip'),
 784                                         'key'   =>      'R'
 785                                 )
 786                 );
 787                 $toolbar ="<script type='text/javascript'>\n/*<![CDATA[*/\n";
 788
 789                 $toolbar.="document.writeln(\"<div id='toolbar'>\");\n";
 790                 foreach($toolarray as $tool) {
 791
 792                         $image=$wgStylePath.'/common/images/'.$tool['image'];
 793                         $open=$tool['open'];
 794                         $close=$tool['close'];
 795                         $sample = addslashes( $tool['sample'] );
 796
 797                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
 798                         // Older browsers show a "speedtip" type message only for ALT.
 799                         // Ideally these should be different, realistically they
 800                         // probably don't need to be.
 801                         $tip = addslashes( $tool['tip'] );
 802
 803                         #$key = $tool["key"];
 804
 805                         $toolbar.="addButton('$image','$tip','$open','$close','$sample');\n";
 806                 }
 807
 808                 $toolbar.="addInfobox('" . addslashes( wfMsg( "infobox" ) ) . "','" . addslashes(wfMsg("infobox_alert")) . "');\n";
 809                 $toolbar.="document.writeln(\"</div>\");\n";
 810
 811                 $toolbar.="/*]]>*/\n</script>";
 812                 return $toolbar;
 813         }
 814
 815 }
 816
 817 ?>