includes/EditPage.php

   1 <?php
   2 /**
   3  * Contain the EditPage class
   4  * @package MediaWiki
   5  * @version $Id$
   6  */
   7
   8 /**
   9  * Splitting edit page/HTML interface from Article...
  10  * The actual database and text munging is still in Article,
  11  * but it should get easier to call those from alternate
  12  * interfaces.
  13  *
  14  * @package MediaWiki
  15  */
  16
  17 class EditPage {
  18         var $mArticle;
  19         var $mTitle;
  20
  21         # Form values
  22         var $save = false, $preview = false;
  23         var $minoredit = false, $watchthis = false;
  24         var $textbox1 = '', $textbox2 = '', $summary = '';
  25         var $edittime = '', $section = '';
  26         var $oldid = 0;
  27
  28         /**
  29          * @todo document
  30          * @param $article
  31          */
  32         function EditPage( $article ) {
  33                 $this->mArticle =& $article;
  34                 global $wgTitle;
  35                 $this->mTitle =& $wgTitle;
  36         }
  37
  38         /**
  39          * This is the function that gets called for "action=edit".
  40          */
  41         function edit() {
  42                 global $wgOut, $wgUser, $wgWhitelistEdit, $wgRequest;
  43                 // this is not an article
  44                 $wgOut->setArticleFlag(false);
  45
  46                 $this->importFormData( $wgRequest );
  47
  48                 if ( ! $this->mTitle->userCanEdit() ) {
  49                         $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
  50                         return;
  51                 }
  52                 if ( $wgUser->isBlocked() ) {
  53                         $this->blockedIPpage();
  54                         return;
  55                 }
  56                 if ( !$wgUser->getID() && $wgWhitelistEdit ) {
  57                         $this->userNotLoggedInPage();
  58                         return;
  59                 }
  60                 if ( wfReadOnly() ) {
  61                         if( $this->save || $this->preview ) {
  62                                 $this->editForm( 'preview' );
  63                         } else {
  64                                 $wgOut->readOnlyPage( $this->mArticle->getContent( true ) );
  65                         }
  66                         return;
  67                 }
  68                 if ( $this->save ) {
  69                         $this->editForm( 'save' );
  70                 } else if ( $this->preview or $wgUser->getOption('previewonfirst')) {
  71                         $this->editForm( 'preview' );
  72                 } else { # First time through
  73                         $this->editForm( 'initial' );
  74                 }
  75         }
  76
  77         /**
  78          * @todo document
  79          */
  80         function importFormData( &$request ) {
  81                 # These fields need to be checked for encoding.
  82                 # Also remove trailing whitespace, but don't remove _initial_
  83                 # whitespace from the text boxes. This may be significant formatting.
  84                 $this->textbox1 = rtrim( $request->getText( 'wpTextbox1' ) );
  85                 $this->textbox2 = rtrim( $request->getText( 'wpTextbox2' ) );
  86                 $this->summary = trim( $request->getText( 'wpSummary' ) );
  87
  88                 $this->edittime = $request->getVal( 'wpEdittime' );
  89                 if( !preg_match( '/^\d{14}$/', $this->edittime )) $this->edittime = '';
  90
  91                 $this->preview = $request->getCheck( 'wpPreview' );
  92                 $this->save = $request->wasPosted() && !$this->preview;
  93                 $this->minoredit = $request->getCheck( 'wpMinoredit' );
  94                 $this->watchthis = $request->getCheck( 'wpWatchthis' );
  95
  96                 $this->oldid = $request->getInt( 'oldid' );
  97
  98                 # Section edit can come from either the form or a link
  99                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 100         }
 101
 102         /**
 103          * Since there is only one text field on the edit form,
 104          * pressing <enter> will cause the form to be submitted, but
 105          * the submit button value won't appear in the query, so we
 106          * Fake it here before going back to edit().  This is kind of
 107          * ugly, but it helps some old URLs to still work.
 108          */
 109         function submit() {
 110                 if( !$this->preview ) $this->save = true;
 111
 112                 $this->edit();
 113         }
 114
 115         /**
 116          * The edit form is self-submitting, so that when things like
 117          * preview and edit conflicts occur, we get the same form back
 118          * with the extra stuff added.  Only when the final submission
 119          * is made and all is well do we actually save and redirect to
 120          * the newly-edited page.
 121          *
 122          * @param string $formtype Type of form either : save, initial or preview
 123          */
 124         function editForm( $formtype ) {
 125                 global $wgOut, $wgUser;
 126                 global $wgLang, $wgContLang, $wgParser, $wgTitle;
 127                 global $wgAllowAnonymousMinor;
 128                 global $wgWhitelistEdit;
 129                 global $wgSpamRegex, $wgFilterCallback;
 130                 global $wgUseLatin1;
 131
 132                 $sk = $wgUser->getSkin();
 133                 $isConflict = false;
 134                 // css / js subpages of user pages get a special treatment
 135                 $isCssJsSubpage = (Namespace::getUser() == $wgTitle->getNamespace() and preg_match("/\\.(css|js)$/", $wgTitle->getText() ));
 136
 137                 if(!$this->mTitle->getArticleID()) { # new article
 138                         $wgOut->addWikiText(wfmsg('newarticletext'));
 139                 }
 140
 141                 if( Namespace::isTalk( $this->mTitle->getNamespace() ) ) {
 142                         $wgOut->addWikiText(wfmsg('talkpagetext'));
 143                 }
 144
 145                 # Attempt submission here.  This will check for edit conflicts,
 146                 # and redundantly check for locked database, blocked IPs, etc.
 147                 # that edit() already checked just in case someone tries to sneak
 148                 # in the back door with a hand-edited submission URL.
 149
 150                 if ( 'save' == $formtype ) {
 151                         # Check for spam
 152                         if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 153                                 $this->spamPage ( $matches );
 154                                 return;
 155                         }
 156                         if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 157                                 # Error messages or other handling should be performed by the filter function
 158                                 return;
 159                         }
 160                         if ( $wgUser->isBlocked() ) {
 161                                 $this->blockedIPpage();
 162                                 return;
 163                         }
 164                         if ( !$wgUser->getID() && $wgWhitelistEdit ) {
 165                                 $this->userNotLoggedInPage();
 166                                 return;
 167                         }
 168                         if ( wfReadOnly() ) {
 169                                 $wgOut->readOnlyPage();
 170                                 return;
 171                         }
 172
 173                         # If article is new, insert it.
 174                         $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 175                         if ( 0 == $aid ) {
 176                                 # Don't save a new article if it's blank.
 177                                 if ( ( '' == $this->textbox1 ) ||
 178                                   ( wfMsg( 'newarticletext' ) == $this->textbox1 ) ) {
 179                                         $wgOut->redirect( $this->mTitle->getFullURL() );
 180                                         return;
 181                                 }
 182                                 $this->mArticle->insertNewArticle( $this->textbox1, $this->summary, $this->minoredit, $this->watchthis );
 183                                 return;
 184                         }
 185
 186                         # Article exists. Check for edit conflict.
 187
 188                         $this->mArticle->clear(); # Force reload of dates, etc.
 189                         $this->mArticle->forUpdate( true ); # Lock the article
 190
 191                         if( ( $this->section != 'new' ) &&
 192                                 ($this->mArticle->getTimestamp() != $this->edittime ) ) {
 193                                 $isConflict = true;
 194                         }
 195                         $userid = $wgUser->getID();
 196
 197                         if ( $isConflict) {
 198                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 199                                         $this->section, $this->textbox1, $this->summary, $this->edittime);
 200                         }
 201                         else {
 202                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 203                                         $this->section, $this->textbox1, $this->summary);
 204                         }
 205                         # Suppress edit conflict with self
 206
 207                         if ( ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 208                                 $isConflict = false;
 209                         } else {
 210                                 # switch from section editing to normal editing in edit conflict
 211                                 if($isConflict) {
 212                                         # Attempt merge
 213                                         if( $this->mergeChangesInto( $text ) ){
 214                                                 // Successful merge! Maybe we should tell the user the good news?
 215                                                 $isConflict = false;
 216                                         } else {
 217                                                 $this->section = '';
 218                                                 $this->textbox1 = $text;
 219                                         }
 220                                 }
 221                         }
 222                         if ( ! $isConflict ) {
 223                                 # All's well
 224                                 $sectionanchor = '';
 225                                 if( $this->section == 'new' ) {
 226                                         if( $this->summary != '' ) {
 227                                                 $sectionanchor = $this->sectionAnchor( $this->summary );
 228                                         }
 229                                 } elseif( $this->section != '' ) {
 230                                         # Try to get a section anchor from the section source, redirect to edited section if header found
 231                                         # XXX: might be better to integrate this into Article::getTextOfLastEditWithSectionReplacedOrAdded
 232                                         # for duplicate heading checking and maybe parsing
 233                                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 234                                         # we can't deal with anchors, includes, html etc in the header for now,
 235                                         # headline would need to be parsed to improve this
 236                                         #if($hasmatch and strlen($matches[2]) > 0 and !preg_match( "/[\\['{<>]/", $matches[2])) {
 237                                         if($hasmatch and strlen($matches[2]) > 0) {
 238                                                 $sectionanchor = $this->sectionAnchor( $matches[2] );
 239                                         }
 240                                 }
 241
 242                                 # update the article here
 243                                 if($this->mArticle->updateArticle( $text, $this->summary, $this->minoredit, $this->watchthis, '', $sectionanchor ))
 244                                         return;
 245                                 else
 246                                         $isConflict = true;
 247                         }
 248                 }
 249                 # First time through: get contents, set time for conflict
 250                 # checking, etc.
 251
 252                 if ( 'initial' == $formtype ) {
 253                         $this->edittime = $this->mArticle->getTimestamp();
 254                         $this->textbox1 = $this->mArticle->getContent( true );
 255                         $this->summary = '';
 256                         $this->proxyCheck();
 257                 }
 258                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 259
 260                 # Enabled article-related sidebar, toplinks, etc.
 261                 $wgOut->setArticleRelated( true );
 262
 263                 if ( $isConflict ) {
 264                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 265                         $wgOut->setPageTitle( $s );
 266                         $wgOut->addHTML( wfMsg( 'explainconflict' ) );
 267
 268                         $this->textbox2 = $this->textbox1;
 269                         $this->textbox1 = $this->mArticle->getContent( true );
 270                         $this->edittime = $this->mArticle->getTimestamp();
 271                 } else {
 272                         $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 273
 274                         if( $this->section != '' ) {
 275                                 if( $this->section == 'new' ) {
 276                                         $s.=wfMsg('commentedit');
 277                                 } else {
 278                                         $s.=wfMsg('sectionedit');
 279                                 }
 280                                 if(!$this->preview) {
 281                                         $sectitle=preg_match("/^=+(.*?)=+/mi",
 282                                         $this->textbox1,
 283                                         $matches);
 284                                         if( !empty( $matches[1] ) ) {
 285                                                 $this->summary = "/* ". trim($matches[1])." */ ";
 286                                         }
 287                                 }
 288                         }
 289                         $wgOut->setPageTitle( $s );
 290                         if ( !$wgUseLatin1 && !$this->checkUnicodeCompliantBrowser() ) {
 291                                 $this->mArticle->setOldSubtitle();
 292                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 293                         }
 294                         if ( $this->oldid ) {
 295                                 $this->mArticle->setOldSubtitle();
 296                                 $wgOut->addHTML( wfMsg( 'editingold' ) );
 297                         }
 298                 }
 299
 300                 if( wfReadOnly() ) {
 301                         $wgOut->addHTML( '<strong>' .
 302                         wfMsg( 'readonlywarning' ) .
 303                         "</strong>" );
 304                 } else if ( $isCssJsSubpage and 'preview' != $formtype) {
 305                         $wgOut->addHTML( wfMsg( 'usercssjsyoucanpreview' ));
 306                 }
 307                 if( $this->mTitle->isProtected() ) {
 308                         $wgOut->addHTML( '<strong>' . wfMsg( 'protectedpagewarning' ) .
 309                           "</strong><br />\n" );
 310                 }
 311
 312                 $kblength = (int)(strlen( $this->textbox1 ) / 1024);
 313                 if( $kblength > 29 ) {
 314                         $wgOut->addHTML( '<strong>' .
 315                                 wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) )
 316                                 . '</strong>' );
 317                 }
 318
 319                 $rows = $wgUser->getOption( 'rows' );
 320                 $cols = $wgUser->getOption( 'cols' );
 321
 322                 $ew = $wgUser->getOption( 'editwidth' );
 323                 if ( $ew ) $ew = " style=\"width:100%\"";
 324                 else $ew = '';
 325
 326                 $q = 'action=submit';
 327                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 328                 $action = $this->mTitle->escapeLocalURL( $q );
 329
 330                 $summary = wfMsg('summary');
 331                 $subject = wfMsg('subject');
 332                 $minor   = wfMsg('minoredit');
 333                 $watchthis = wfMsg ('watchthis');
 334                 $save = wfMsg('savearticle');
 335                 $prev = wfMsg('showpreview');
 336
 337                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
 338                                 wfMsg('cancel') );
 339                 $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
 340                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
 341                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
 342                         htmlspecialchars( wfMsg( 'newwindow' ) );
 343
 344                 global $wgRightsText;
 345                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
 346                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
 347                                 '[[' . wfMsg( 'copyrightpage' ) . ']]',
 348                                 $wgRightsText ) . "\n</div>";
 349
 350                 if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
 351                         # prepare toolbar for edit buttons
 352                         $toolbar = $sk->getEditToolbar();
 353                 } else {
 354                         $toolbar = '';
 355                 }
 356
 357                 // activate checkboxes if user wants them to be always active
 358                 if( !$this->preview ) {
 359                         if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
 360                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
 361
 362                         // activate checkbox also if user is already watching the page,
 363                         // require wpWatchthis to be unset so that second condition is not
 364                         // checked unnecessarily
 365                         if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
 366                 }
 367
 368                 $minoredithtml = '';
 369
 370                 if ( 0 != $wgUser->getID() || $wgAllowAnonymousMinor ) {
 371                         $minoredithtml =
 372                                 "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
 373                                 " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
 374                                 "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
 375                 }
 376
 377                 $watchhtml = '';
 378
 379                 if ( 0 != $wgUser->getID() ) {
 380                         $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
 381                                 " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
 382                                 "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
 383                 }
 384
 385                 $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 386
 387                 if ( 'preview' == $formtype) {
 388                         $previewhead='<h2>' . wfMsg( 'preview' ) . "</h2>\n<p><center><font color=\"#cc0000\">" .
 389                                 wfMsg( 'note' ) . wfMsg( 'previewnote' ) . "</font></center></p>\n";
 390                         if ( $isConflict ) {
 391                                 $previewhead.='<h2>' . wfMsg( 'previewconflict' ) .
 392                                         "</h2>\n";
 393                         }
 394
 395                         $parserOptions = ParserOptions::newFromUser( $wgUser );
 396                         $parserOptions->setEditSection( false );
 397                         $parserOptions->setEditSectionOnRightClick( false );
 398
 399                         # don't parse user css/js, show message about preview
 400                         # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 401
 402                         if ( $isCssJsSubpage ) {
 403                                 if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 404                                         $previewtext = wfMsg('usercsspreview');
 405                                 } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 406                                         $previewtext = wfMsg('userjspreview');
 407                                 }
 408                                 $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 409                                 $wgOut->addHTML( $parserOutput->mText );
 410                         } else {
 411                                 # if user want to see preview when he edit an article
 412                                 if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 413                                         $this->textbox1 = $this->mArticle->getContent(true);
 414                                 }
 415
 416                                 $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $this->textbox1 ) ."\n\n",
 417                                                 $wgTitle, $parserOptions );
 418
 419                                 $previewHTML = $parserOutput->mText;
 420
 421                                 if($wgUser->getOption('previewontop')) {
 422                                         $wgOut->addHTML($previewhead);
 423                                         $wgOut->addHTML($previewHTML);
 424                                 }
 425                                 $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 426                                 $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 427                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 428                         }
 429                 }
 430
 431                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 432                 # Otherwise, show a summary field at the bottom
 433                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
 434                         if( $this->section == 'new' ) {
 435                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 436                                 $editsummary = '';
 437                         } else {
 438                                 $commentsubject = '';
 439                                 $editsummary="{$summary}: <input tabindex='3' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 440                         }
 441
 442                 if( !$this->preview ) {
 443                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 444                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 445                 }
 446                 # Prepare a list of templates used by this page
 447                 $db =& wfGetDB( DB_SLAVE );
 448                 $cur = $db->tableName( 'cur' );
 449                 $links = $db->tableName( 'links' );
 450                 $id = $this->mTitle->getArticleID();
 451                 $sql = "SELECT cur_namespace,cur_title,cur_id ".
 452                         "FROM $cur,$links WHERE l_to=cur_id AND l_from={$id} and cur_namespace=".NS_TEMPLATE;
 453                 $res = $db->query( $sql, "EditPage::editform" );
 454
 455                 if ( $db->numRows( $res ) ) {
 456                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 457                         while ( $row = $db->fetchObject( $res ) ) {
 458                                 if ( $titleObj = Title::makeTitle( $row->cur_namespace, $row->cur_title ) ) {
 459                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 460                                 }
 461                         }
 462                         $templates .= '</ul>';
 463                 } else {
 464                         $templates = '';
 465                 }
 466                 $wgOut->addHTML( "
 467 {$toolbar}
 468 <form id=\"editform\" name=\"editform\" method=\"post\" action=\"$action\"
 469 enctype=\"multipart/form-data\">
 470 {$commentsubject}
 471 <textarea tabindex='1' accesskey=\",\" name=\"wpTextbox1\" rows='{$rows}'
 472 cols='{$cols}'{$ew}>" .
 473 htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox1 ) ) .
 474 "
 475 </textarea>
 476 <br />{$editsummary}
 477 {$checkboxhtml}
 478 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 479 " title=\"".wfMsg('tooltip-save')."\"/>
 480 <input tabindex='6' id='wpPreview' type='submit' value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 481 " title=\"".wfMsg('tooltip-preview')."\"/>
 482 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 483                 $wgOut->addWikiText( $copywarn );
 484                 $wgOut->addHTML( "
 485 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 486 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 487
 488                 if ( $isConflict ) {
 489                         require_once( "DifferenceEngine.php" );
 490                         $wgOut->addHTML( "<h2>" . wfMsg( "yourdiff" ) . "</h2>\n" );
 491                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 492                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 493
 494                         $wgOut->addHTML( "<h2>" . wfMsg( "yourtext" ) . "</h2>
 495 <textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 496 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox2 ) ) .
 497 "
 498 </textarea>" );
 499                 }
 500                 $wgOut->addHTML( "</form>\n" );
 501                 if($formtype =="preview" && !$wgUser->getOption("previewontop")) {
 502                         $wgOut->addHTML($previewhead);
 503                         $wgOut->addHTML($previewHTML);
 504                 }
 505         }
 506
 507         /**
 508          * @todo document
 509          */
 510         function blockedIPpage() {
 511                 global $wgOut, $wgUser, $wgContLang, $wgIP;
 512
 513                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 514                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 515                 $wgOut->setArticleRelated( false );
 516
 517                 $id = $wgUser->blockedBy();
 518                 $reason = $wgUser->blockedFor();
 519                 $ip = $wgIP;
 520
 521                 if ( is_numeric( $id ) ) {
 522                         $name = User::whoIs( $id );
 523                 } else {
 524                         $name = $id;
 525                 }
 526                 $link = '[[' . $wgContLang->getNsText( Namespace::getUser() ) .
 527                   ":{$name}|{$name}]]";
 528
 529                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 530                 $wgOut->returnToMain( false );
 531         }
 532
 533         /**
 534          * @todo document
 535          */
 536         function userNotLoggedInPage() {
 537                 global $wgOut, $wgUser;
 538
 539                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 540                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 541                 $wgOut->setArticleRelated( false );
 542
 543                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 544                 $wgOut->returnToMain( false );
 545         }
 546
 547         /**
 548          * @todo document
 549          */
 550         function spamPage ( $matches = array() )
 551         {
 552                 global $wgOut;
 553                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 554                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 555                 $wgOut->setArticleRelated( false );
 556
 557                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 558                 if ( isset ( $matches[0] ) ) {
 559                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$matches[0]}</nowiki>" ) );
 560                 }
 561                 $wgOut->returnToMain( false );
 562         }
 563
 564         /**
 565          * Forks processes to scan the originating IP for an open proxy server
 566          * MemCached can be used to skip IPs that have already been scanned
 567          */
 568         function proxyCheck() {
 569                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 570                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 571
 572                 if ( !$wgBlockOpenProxies ) {
 573                         return;
 574                 }
 575
 576                 # Get MemCached key
 577                 $skip = false;
 578                 if ( $wgUseMemCached ) {
 579                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 580                         $mcValue = $wgMemc->get( $mcKey );
 581                         if ( $mcValue ) {
 582                                 $skip = true;
 583                         }
 584                 }
 585
 586                 # Fork the processes
 587                 if ( !$skip ) {
 588                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 589                         $iphash = md5( $wgIP . $wgProxyKey );
 590                         $url = $title->getFullURL( 'ip='.$iphash );
 591
 592                         foreach ( $wgProxyPorts as $port ) {
 593                                 $params = implode( ' ', array(
 594                                                         escapeshellarg( $wgProxyScriptPath ),
 595                                                         escapeshellarg( $wgIP ),
 596                                                         escapeshellarg( $port ),
 597                                                         escapeshellarg( $url )
 598                                                         ));
 599                                 exec( "php $params &>/dev/null &" );
 600                         }
 601                         # Set MemCached key
 602                         if ( $wgUseMemCached ) {
 603                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 604                         }
 605                 }
 606         }
 607
 608         /**
 609          * @access private
 610          * @todo document
 611          */
 612         function mergeChangesInto( &$text ){
 613                 $fname = 'EditPage::mergeChangesInto';
 614                 $oldDate = $this->edittime;
 615                 $dbw =& wfGetDB( DB_MASTER );
 616                 $obj = $dbw->selectRow( 'cur', array( 'cur_text' ), array( 'cur_id' => $this->mTitle->getArticleID() ),
 617                         $fname, 'FOR UPDATE' );
 618
 619                 $yourtext = $obj->cur_text;
 620                 $ns = $this->mTitle->getNamespace();
 621                 $title = $this->mTitle->getDBkey();
 622                 $obj = $dbw->selectRow( 'old',
 623                         array( 'old_text','old_flags'),
 624                         array( 'old_namespace' => $ns, 'old_title' => $title,
 625                                 'old_timestamp' => $dbw->timestamp($oldDate)),
 626                         $fname );
 627                 $oldText = Article::getRevisionText( $obj );
 628
 629                 if(wfMerge($oldText, $text, $yourtext, $result)){
 630                         $text = $result;
 631                         return true;
 632                 } else {
 633                         return false;
 634                 }
 635         }
 636
 637
 638         function checkUnicodeCompliantBrowser() {
 639                 global $wgBrowserBlackList;
 640                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
 641                 foreach ( $wgBrowserBlackList as $browser ) {
 642                         if ( preg_match($browser, $currentbrowser) ) {
 643                                 return false;
 644                         }
 645                 }
 646                 return true;
 647         }
 648
 649         /**
 650          * Format an anchor fragment as it would appear for a given section name
 651          * @param string $text
 652          * @return string
 653          * @access private
 654          */
 655         function sectionAnchor( $text ) {
 656                 global $wgInputEncoding;
 657                 $headline = do_html_entity_decode( $text, ENT_COMPAT, $wgInputEncoding );
 658                 # strip out HTML
 659                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
 660                 $headline = trim( $headline );
 661                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
 662                 $replacearray = array(
 663                         '%3A' => ':',
 664                         '%' => '.'
 665                 );
 666                 return str_replace(
 667                         array_keys( $replacearray ),
 668                         array_values( $replacearray ),
 669                         $sectionanchor );
 670         }
 671 }
 672
 673 ?>