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