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 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, $wgParser, $wgTitle;
 126                 global $wgAllowAnonymousMinor;
 127                 global $wgWhitelistEdit;
 128                 global $wgSpamRegex, $wgFilterCallback;
 129
 130                 $sk = $wgUser->getSkin();
 131                 $isConflict = false;
 132                 // css / js subpages of user pages get a special treatment
 133                 $isCssJsSubpage = (Namespace::getUser() == $wgTitle->getNamespace() and preg_match("/\\.(css|js)$/", $wgTitle->getText() ));
 134
 135                 if(!$this->mTitle->getArticleID()) { # new article
 136                         $wgOut->addWikiText(wfmsg('newarticletext'));
 137                 }
 138
 139                 if( Namespace::isTalk( $this->mTitle->getNamespace() ) ) {
 140                         $wgOut->addWikiText(wfmsg('talkpagetext'));
 141                 }
 142
 143                 # Attempt submission here.  This will check for edit conflicts,
 144                 # and redundantly check for locked database, blocked IPs, etc.
 145                 # that edit() already checked just in case someone tries to sneak
 146                 # in the back door with a hand-edited submission URL.
 147
 148                 if ( 'save' == $formtype ) {
 149                         # Check for spam
 150                         if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 151                                 $this->spamPage ( $matches );
 152                                 return;
 153                         }
 154                         if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 155                                 # Error messages or other handling should be performed by the filter function
 156                                 return;
 157                         }
 158                         if ( $wgUser->isBlocked() ) {
 159                                 $this->blockedIPpage();
 160                                 return;
 161                         }
 162                         if ( !$wgUser->getID() && $wgWhitelistEdit ) {
 163                                 $this->userNotLoggedInPage();
 164                                 return;
 165                         }
 166                         if ( wfReadOnly() ) {
 167                                 $wgOut->readOnlyPage();
 168                                 return;
 169                         }
 170
 171                         # If article is new, insert it.
 172                         $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 173                         if ( 0 == $aid ) {
 174                                 # Don't save a new article if it's blank.
 175                                 if ( ( '' == $this->textbox1 ) ||
 176                                   ( wfMsg( 'newarticletext' ) == $this->textbox1 ) ) {
 177                                         $wgOut->redirect( $this->mTitle->getFullURL() );
 178                                         return;
 179                                 }
 180                                 $this->mArticle->insertNewArticle( $this->textbox1, $this->summary, $this->minoredit, $this->watchthis );
 181                                 return;
 182                         }
 183
 184                         # Article exists. Check for edit conflict.
 185
 186                         $this->mArticle->clear(); # Force reload of dates, etc.
 187                         $this->mArticle->forUpdate( true ); # Lock the article
 188
 189                         if( ( $this->section != 'new' ) &&
 190                                 ($this->mArticle->getTimestamp() != $this->edittime ) ) {
 191                                 $isConflict = true;
 192                         }
 193                         $userid = $wgUser->getID();
 194
 195                         $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 196                                 $this->section, $this->textbox1, $this->summary);
 197                         # Suppress edit conflict with self
 198
 199                         if ( ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 200                                 $isConflict = false;
 201                         } else {
 202                                 # switch from section editing to normal editing in edit conflict
 203                                 if($isConflict) {
 204                                         # Attempt merge
 205                                         if( $this->mergeChangesInto( $text ) ){
 206                                                 // Successful merge! Maybe we should tell the user the good news?
 207                                                 $isConflict = false;
 208                                         } else {
 209                                                 $this->section = '';
 210                                                 $this->textbox1 = $text;
 211                                         }
 212                                 }
 213                         }
 214                         if ( ! $isConflict ) {
 215                                 # All's well
 216                                 $sectionanchor = '';
 217                                 if( $this->section != '' ) {
 218                                         # Try to get a section anchor from the section source, redirect to edited section if header found
 219                                         # XXX: might be better to integrate this into Article::getTextOfLastEditWithSectionReplacedOrAdded
 220                                         # for duplicate heading checking and maybe parsing
 221                                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 222                                         # we can't deal with anchors, includes, html etc in the header for now,
 223                                         # headline would need to be parsed to improve this
 224                                         #if($hasmatch and strlen($matches[2]) > 0 and !preg_match( "/[\\['{<>]/", $matches[2])) {
 225                                         if($hasmatch and strlen($matches[2]) > 0) {
 226                                                 global $wgInputEncoding;
 227                                                 $headline = do_html_entity_decode( $matches[2], ENT_COMPAT, $wgInputEncoding );
 228                                                 # strip out HTML
 229                                                 $headline = preg_replace( "/<.*?" . ">/","",$headline );
 230                                                 $headline = trim( $headline );
 231                                                 $sectionanchor = '#'.urlencode( str_replace(' ', '_', $headline ) );
 232                                                 $replacearray = array(
 233                                                         '%3A' => ':',
 234                                                         '%' => '.'
 235                                                 );
 236                                                 $sectionanchor = str_replace(array_keys($replacearray),array_values($replacearray),$sectionanchor);
 237                                         }
 238                                 }
 239
 240                                 # update the article here
 241                                 if($this->mArticle->updateArticle( $text, $this->summary, $this->minoredit, $this->watchthis, '', $sectionanchor ))
 242                                         return;
 243                                 else
 244                                         $isConflict = true;
 245                         }
 246                 }
 247                 # First time through: get contents, set time for conflict
 248                 # checking, etc.
 249
 250                 if ( 'initial' == $formtype ) {
 251                         $this->edittime = $this->mArticle->getTimestamp();
 252                         $this->textbox1 = $this->mArticle->getContent( true );
 253                         $this->summary = '';
 254                         $this->proxyCheck();
 255                 }
 256                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 257
 258                 # Enabled article-related sidebar, toplinks, etc.
 259                 $wgOut->setArticleRelated( true );
 260
 261                 if ( $isConflict ) {
 262                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 263                         $wgOut->setPageTitle( $s );
 264                         $wgOut->addHTML( wfMsg( 'explainconflict' ) );
 265
 266                         $this->textbox2 = $this->textbox1;
 267                         $this->textbox1 = $this->mArticle->getContent( true );
 268                         $this->edittime = $this->mArticle->getTimestamp();
 269                 } else {
 270                         $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 271
 272                         if( $this->section != '' ) {
 273                                 if( $this->section == 'new' ) {
 274                                         $s.=wfMsg('commentedit');
 275                                 } else {
 276                                         $s.=wfMsg('sectionedit');
 277                                 }
 278                                 if(!$this->preview) {
 279                                         $sectitle=preg_match("/^=+(.*?)=+/mi",
 280                                         $this->textbox1,
 281                                         $matches);
 282                                         if( !empty( $matches[1] ) ) {
 283                                                 $this->summary = "/* ". trim($matches[1])." */ ";
 284                                         }
 285                                 }
 286                         }
 287                         $wgOut->setPageTitle( $s );
 288                         if ( $this->oldid ) {
 289                                 $this->mArticle->setOldSubtitle();
 290                                 $wgOut->addHTML( wfMsg( 'editingold' ) );
 291                         }
 292                 }
 293
 294                 if( wfReadOnly() ) {
 295                         $wgOut->addHTML( '<strong>' .
 296                         wfMsg( 'readonlywarning' ) .
 297                         "</strong>" );
 298                 } else if ( $isCssJsSubpage and 'preview' != $formtype) {
 299                         $wgOut->addHTML( wfMsg( 'usercssjsyoucanpreview' ));
 300                 }
 301                 if( $this->mTitle->isProtected() ) {
 302                         $wgOut->addHTML( '<strong>' . wfMsg( 'protectedpagewarning' ) .
 303                           "</strong><br />\n" );
 304                 }
 305
 306                 $kblength = (int)(strlen( $this->textbox1 ) / 1024);
 307                 if( $kblength > 29 ) {
 308                         $wgOut->addHTML( '<strong>' .
 309                                 wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) )
 310                                 . '</strong>' );
 311                 }
 312
 313                 $rows = $wgUser->getOption( 'rows' );
 314                 $cols = $wgUser->getOption( 'cols' );
 315
 316                 $ew = $wgUser->getOption( 'editwidth' );
 317                 if ( $ew ) $ew = " style=\"width:100%\"";
 318                 else $ew = '';
 319
 320                 $q = 'action=submit';
 321                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 322                 $action = $this->mTitle->escapeLocalURL( $q );
 323
 324                 $summary = wfMsg('summary');
 325                 $subject = wfMsg('subject');
 326                 $minor   = wfMsg('minoredit');
 327                 $watchthis = wfMsg ('watchthis');
 328                 $save = wfMsg('savearticle');
 329                 $prev = wfMsg('showpreview');
 330
 331                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
 332                                 wfMsg('cancel') );
 333                 $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
 334                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
 335                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
 336                         htmlspecialchars( wfMsg( 'newwindow' ) );
 337
 338                 global $wgRightsText;
 339                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
 340                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
 341                                 '[[' . wfMsg( 'copyrightpage' ) . ']]',
 342                                 $wgRightsText ) . "\n</div>";
 343
 344                 if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
 345                         # prepare toolbar for edit buttons
 346                         $toolbar = $sk->getEditToolbar();
 347                 } else {
 348                         $toolbar = '';
 349                 }
 350
 351                 // activate checkboxes if user wants them to be always active
 352                 if( !$this->preview ) {
 353                         if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
 354                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
 355
 356                         // activate checkbox also if user is already watching the page,
 357                         // require wpWatchthis to be unset so that second condition is not
 358                         // checked unnecessarily
 359                         if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
 360                 }
 361
 362                 $minoredithtml = '';
 363
 364                 if ( 0 != $wgUser->getID() || $wgAllowAnonymousMinor ) {
 365                         $minoredithtml =
 366                                 "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
 367                                 " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
 368                                 "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
 369                 }
 370
 371                 $watchhtml = '';
 372
 373                 if ( 0 != $wgUser->getID() ) {
 374                         $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
 375                                 " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
 376                                 "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
 377                 }
 378
 379                 $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 380
 381                 if ( 'preview' == $formtype) {
 382                         $previewhead='<h2>' . wfMsg( 'preview' ) . "</h2>\n<p><center><font color=\"#cc0000\">" .
 383                                 wfMsg( 'note' ) . wfMsg( 'previewnote' ) . "</font></center></p>\n";
 384                         if ( $isConflict ) {
 385                                 $previewhead.='<h2>' . wfMsg( 'previewconflict' ) .
 386                                         "</h2>\n";
 387                         }
 388
 389                         $parserOptions = ParserOptions::newFromUser( $wgUser );
 390                         $parserOptions->setEditSection( false );
 391                         $parserOptions->setEditSectionOnRightClick( false );
 392
 393                         # don't parse user css/js, show message about preview
 394                         # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 395
 396                         if ( $isCssJsSubpage ) {
 397                                 if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 398                                         $previewtext = wfMsg('usercsspreview');
 399                                 } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 400                                         $previewtext = wfMsg('userjspreview');
 401                                 }
 402                                 $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 403                                 $wgOut->addHTML( $parserOutput->mText );
 404                         } else {
 405                                 # if user want to see preview when he edit an article
 406                                 if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 407                                         $this->textbox1 = $this->mArticle->getContent(true);
 408                                 }
 409
 410                                 $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $this->textbox1 ) ."\n\n",
 411                                                 $wgTitle, $parserOptions );
 412
 413                                 $previewHTML = $parserOutput->mText;
 414
 415                                 if($wgUser->getOption('previewontop')) {
 416                                         $wgOut->addHTML($previewhead);
 417                                         $wgOut->addHTML($previewHTML);
 418                                 }
 419                                 $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 420                                 $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 421                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 422                         }
 423                 }
 424
 425                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 426                 # Otherwise, show a summary field at the bottom
 427                 $summarytext = htmlspecialchars( $wgLang->recodeForEdit( $this->summary ) ); # FIXME
 428                         if( $this->section == 'new' ) {
 429                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 430                                 $editsummary = '';
 431                         } else {
 432                                 $commentsubject = '';
 433                                 $editsummary="{$summary}: <input tabindex='3' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 434                         }
 435
 436                 if( !$this->preview ) {
 437                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 438                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 439                 }
 440                 # Prepare a list of templates used by this page
 441                 $db =& wfGetDB( DB_SLAVE );
 442                 $cur = $db->tableName( 'cur' );
 443                 $links = $db->tableName( 'links' );
 444                 $id = $this->mTitle->getArticleID();
 445                 $sql = "SELECT cur_namespace,cur_title,cur_id ".
 446                         "FROM $cur,$links WHERE l_to=cur_id AND l_from={$id} and cur_namespace=".NS_TEMPLATE;
 447                 $res = $db->query( $sql, "EditPage::editform" );
 448
 449                 if ( $db->numRows( $res ) ) {
 450                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 451                         while ( $row = $db->fetchObject( $res ) ) {
 452                                 if ( $titleObj = Title::makeTitle( $row->cur_namespace, $row->cur_title ) ) {
 453                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 454                                 }
 455                         }
 456                         $templates .= '</ul>';
 457                 } else {
 458                         $templates = '';
 459                 }
 460                 $wgOut->addHTML( "
 461 {$toolbar}
 462 <form id=\"editform\" name=\"editform\" method=\"post\" action=\"$action\"
 463 enctype=\"application/x-www-form-urlencoded\">
 464 {$commentsubject}
 465 <textarea tabindex='1' accesskey=\",\" name=\"wpTextbox1\" rows='{$rows}'
 466 cols='{$cols}'{$ew}>" .
 467 htmlspecialchars( $wgLang->recodeForEdit( $this->textbox1 ) ) .
 468 "
 469 </textarea>
 470 <br />{$editsummary}
 471 {$checkboxhtml}
 472 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 473 " title=\"".wfMsg('tooltip-save')."\"/>
 474 <input tabindex='6' id='wpPreview' type='submit' value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 475 " title=\"".wfMsg('tooltip-preview')."\"/>
 476 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 477                 $wgOut->addWikiText( $copywarn );
 478                 $wgOut->addHTML( "
 479 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 480 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 481
 482                 if ( $isConflict ) {
 483                         require_once( "DifferenceEngine.php" );
 484                         $wgOut->addHTML( "<h2>" . wfMsg( "yourdiff" ) . "</h2>\n" );
 485                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 486                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 487
 488                         $wgOut->addHTML( "<h2>" . wfMsg( "yourtext" ) . "</h2>
 489 <textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 490 . htmlspecialchars( $wgLang->recodeForEdit( $this->textbox2 ) ) .
 491 "
 492 </textarea>" );
 493                 }
 494                 $wgOut->addHTML( "</form>\n" );
 495                 if($formtype =="preview" && !$wgUser->getOption("previewontop")) {
 496                         $wgOut->addHTML($previewhead);
 497                         $wgOut->addHTML($previewHTML);
 498                 }
 499         }
 500
 501         /**
 502          * @todo document
 503          */
 504         function blockedIPpage() {
 505                 global $wgOut, $wgUser, $wgLang, $wgIP;
 506
 507                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 508                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 509                 $wgOut->setArticleRelated( false );
 510
 511                 $id = $wgUser->blockedBy();
 512                 $reason = $wgUser->blockedFor();
 513                 $ip = $wgIP;
 514
 515                 if ( is_numeric( $id ) ) {
 516                         $name = User::whoIs( $id );
 517                 } else {
 518                         $name = $id;
 519                 }
 520                 $link = '[[' . $wgLang->getNsText( Namespace::getUser() ) .
 521                   ":{$name}|{$name}]]";
 522
 523                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 524                 $wgOut->returnToMain( false );
 525         }
 526
 527         /**
 528          * @todo document
 529          */
 530         function userNotLoggedInPage() {
 531                 global $wgOut, $wgUser, $wgLang;
 532
 533                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 534                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 535                 $wgOut->setArticleRelated( false );
 536
 537                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 538                 $wgOut->returnToMain( false );
 539         }
 540
 541         /**
 542          * @todo document
 543          */
 544         function spamPage ( $matches = array() )
 545         {
 546                 global $wgOut;
 547                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 548                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 549                 $wgOut->setArticleRelated( false );
 550
 551                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 552                 if ( isset ( $matches[0] ) ) {
 553                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$matches[0]}</nowiki>" ) );
 554                 }
 555                 $wgOut->returnToMain( false );
 556         }
 557
 558         /**
 559          * Forks processes to scan the originating IP for an open proxy server
 560          * MemCached can be used to skip IPs that have already been scanned
 561          */
 562         function proxyCheck() {
 563                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 564                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 565
 566                 if ( !$wgBlockOpenProxies ) {
 567                         return;
 568                 }
 569
 570                 # Get MemCached key
 571                 $skip = false;
 572                 if ( $wgUseMemCached ) {
 573                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 574                         $mcValue = $wgMemc->get( $mcKey );
 575                         if ( $mcValue ) {
 576                                 $skip = true;
 577                         }
 578                 }
 579
 580                 # Fork the processes
 581                 if ( !$skip ) {
 582                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 583                         $iphash = md5( $wgIP . $wgProxyKey );
 584                         $url = $title->getFullURL( 'ip='.$iphash );
 585
 586                         foreach ( $wgProxyPorts as $port ) {
 587                                 $params = implode( ' ', array(
 588                                                         escapeshellarg( $wgProxyScriptPath ),
 589                                                         escapeshellarg( $wgIP ),
 590                                                         escapeshellarg( $port ),
 591                                                         escapeshellarg( $url )
 592                                                         ));
 593                                 exec( "php $params &>/dev/null &" );
 594                         }
 595                         # Set MemCached key
 596                         if ( $wgUseMemCached ) {
 597                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 598                         }
 599                 }
 600         }
 601
 602         /**
 603          * @access private
 604          * @todo document
 605          */
 606         function mergeChangesInto( &$text ){
 607                 $fname = 'EditPage::mergeChangesInto';
 608                 $oldDate = $this->edittime;
 609                 $dbw =& wfGetDB( DB_MASTER );
 610                 $obj = $dbw->getArray( 'cur', array( 'cur_text' ), array( 'cur_id' => $this->mTitle->getArticleID() ),
 611                         $fname, 'FOR UPDATE' );
 612
 613                 $yourtext = $obj->cur_text;
 614                 $ns = $this->mTitle->getNamespace();
 615                 $title = $this->mTitle->getDBkey();
 616                 $obj = $dbw->getArray( 'old',
 617                         array( 'old_text','old_flags'),
 618                         array( 'old_namespace' => $ns, 'old_title' => $title,
 619                                 'old_timestamp' => $dbw->timestamp($oldDate)),
 620                         $fname );
 621                 $oldText = Article::getRevisionText( $obj );
 622
 623                 if(wfMerge($oldText, $text, $yourtext, $result)){
 624                         $text = $result;
 625                         return true;
 626                 } else {
 627                         return false;
 628                 }
 629         }
 630 }
 631
 632 ?>