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