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
 273                         if( $this->section != '' ) {
 274                                 if( $this->section == 'new' ) {
 275                                         $s.=wfMsg('editingcomment', $this->mTitle->getPrefixedText() );
 276                                 } else {
 277                                         $s.=wfMsg('editingsection', $this->mTitle->getPrefixedText() );
 278                                 }
 279                                 if(!$this->preview) {
 280                                         $sectitle=preg_match("/^=+(.*?)=+/mi",
 281                                         $this->textbox1,
 282                                         $matches);
 283                                         if( !empty( $matches[1] ) ) {
 284                                                 $this->summary = "/* ". trim($matches[1])." */ ";
 285                                         }
 286                                 }
 287                         } else {
 288                                 $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 289                         }
 290                         $wgOut->setPageTitle( $s );
 291                         if ( !$wgUseLatin1 && !$this->checkUnicodeCompliantBrowser() ) {
 292                                 $this->mArticle->setOldSubtitle();
 293                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 294                         }
 295                         if ( $this->oldid ) {
 296                                 $this->mArticle->setOldSubtitle();
 297                                 $wgOut->addHTML( wfMsg( 'editingold' ) );
 298                         }
 299                 }
 300
 301                 if( wfReadOnly() ) {
 302                         $wgOut->addHTML( '<strong>' .
 303                         wfMsg( 'readonlywarning' ) .
 304                         "</strong>" );
 305                 } else if ( $isCssJsSubpage and 'preview' != $formtype) {
 306                         $wgOut->addHTML( wfMsg( 'usercssjsyoucanpreview' ));
 307                 }
 308                 if( $this->mTitle->isProtected() ) {
 309                         $wgOut->addHTML( '<strong>' . wfMsg( 'protectedpagewarning' ) .
 310                           "</strong><br />\n" );
 311                 }
 312
 313                 $kblength = (int)(strlen( $this->textbox1 ) / 1024);
 314                 if( $kblength > 29 ) {
 315                         $wgOut->addHTML( '<strong>' .
 316                                 wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) )
 317                                 . '</strong>' );
 318                 }
 319
 320                 $rows = $wgUser->getOption( 'rows' );
 321                 $cols = $wgUser->getOption( 'cols' );
 322
 323                 $ew = $wgUser->getOption( 'editwidth' );
 324                 if ( $ew ) $ew = " style=\"width:100%\"";
 325                 else $ew = '';
 326
 327                 $q = 'action=submit';
 328                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 329                 $action = $this->mTitle->escapeLocalURL( $q );
 330
 331                 $summary = wfMsg('summary');
 332                 $subject = wfMsg('subject');
 333                 $minor   = wfMsg('minoredit');
 334                 $watchthis = wfMsg ('watchthis');
 335                 $save = wfMsg('savearticle');
 336                 $prev = wfMsg('showpreview');
 337
 338                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
 339                                 wfMsg('cancel') );
 340                 $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
 341                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
 342                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
 343                         htmlspecialchars( wfMsg( 'newwindow' ) );
 344
 345                 global $wgRightsText;
 346                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
 347                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
 348                                 '[[' . wfMsg( 'copyrightpage' ) . ']]',
 349                                 $wgRightsText ) . "\n</div>";
 350
 351                 if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
 352                         # prepare toolbar for edit buttons
 353                         $toolbar = $sk->getEditToolbar();
 354                 } else {
 355                         $toolbar = '';
 356                 }
 357
 358                 // activate checkboxes if user wants them to be always active
 359                 if( !$this->preview ) {
 360                         if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
 361                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
 362
 363                         // activate checkbox also if user is already watching the page,
 364                         // require wpWatchthis to be unset so that second condition is not
 365                         // checked unnecessarily
 366                         if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
 367                 }
 368
 369                 $minoredithtml = '';
 370
 371                 if ( 0 != $wgUser->getID() || $wgAllowAnonymousMinor ) {
 372                         $minoredithtml =
 373                                 "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
 374                                 " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
 375                                 "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
 376                 }
 377
 378                 $watchhtml = '';
 379
 380                 if ( 0 != $wgUser->getID() ) {
 381                         $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
 382                                 " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
 383                                 "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
 384                 }
 385
 386                 $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 387
 388                 if ( 'preview' == $formtype) {
 389                         $previewhead='<h2>' . wfMsg( 'preview' ) . "</h2>\n<p><center><font color=\"#cc0000\">" .
 390                                 wfMsg( 'note' ) . wfMsg( 'previewnote' ) . "</font></center></p>\n";
 391                         if ( $isConflict ) {
 392                                 $previewhead.='<h2>' . wfMsg( 'previewconflict' ) .
 393                                         "</h2>\n";
 394                         }
 395
 396                         $parserOptions = ParserOptions::newFromUser( $wgUser );
 397                         $parserOptions->setEditSection( false );
 398                         $parserOptions->setEditSectionOnRightClick( false );
 399
 400                         # don't parse user css/js, show message about preview
 401                         # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 402
 403                         if ( $isCssJsSubpage ) {
 404                                 if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 405                                         $previewtext = wfMsg('usercsspreview');
 406                                 } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 407                                         $previewtext = wfMsg('userjspreview');
 408                                 }
 409                                 $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 410                                 $wgOut->addHTML( $parserOutput->mText );
 411                         } else {
 412                                 # if user want to see preview when he edit an article
 413                                 if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 414                                         $this->textbox1 = $this->mArticle->getContent(true);
 415                                 }
 416
 417                                 $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $this->textbox1 ) ."\n\n",
 418                                                 $wgTitle, $parserOptions );
 419
 420                                 $previewHTML = $parserOutput->mText;
 421
 422                                 if($wgUser->getOption('previewontop')) {
 423                                         $wgOut->addHTML($previewhead);
 424                                         $wgOut->addHTML($previewHTML);
 425                                 }
 426                                 $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 427                                 $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 428                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 429                         }
 430                 }
 431
 432                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 433                 # Otherwise, show a summary field at the bottom
 434                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
 435                         if( $this->section == 'new' ) {
 436                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 437                                 $editsummary = '';
 438                         } else {
 439                                 $commentsubject = '';
 440                                 $editsummary="{$summary}: <input tabindex='3' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 441                         }
 442
 443                 if( !$this->preview ) {
 444                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 445                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 446                 }
 447                 # Prepare a list of templates used by this page
 448                 $db =& wfGetDB( DB_SLAVE );
 449                 $cur = $db->tableName( 'cur' );
 450                 $links = $db->tableName( 'links' );
 451                 $id = $this->mTitle->getArticleID();
 452                 $sql = "SELECT cur_namespace,cur_title,cur_id ".
 453                         "FROM $cur,$links WHERE l_to=cur_id AND l_from={$id} and cur_namespace=".NS_TEMPLATE;
 454                 $res = $db->query( $sql, "EditPage::editform" );
 455
 456                 if ( $db->numRows( $res ) ) {
 457                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 458                         while ( $row = $db->fetchObject( $res ) ) {
 459                                 if ( $titleObj = Title::makeTitle( $row->cur_namespace, $row->cur_title ) ) {
 460                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 461                                 }
 462                         }
 463                         $templates .= '</ul>';
 464                 } else {
 465                         $templates = '';
 466                 }
 467                 $wgOut->addHTML( "
 468 {$toolbar}
 469 <form id=\"editform\" name=\"editform\" method=\"post\" action=\"$action\"
 470 enctype=\"multipart/form-data\">
 471 {$commentsubject}
 472 <textarea tabindex='1' accesskey=\",\" name=\"wpTextbox1\" rows='{$rows}'
 473 cols='{$cols}'{$ew}>" .
 474 htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox1 ) ) .
 475 "
 476 </textarea>
 477 <br />{$editsummary}
 478 {$checkboxhtml}
 479 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 480 " title=\"".wfMsg('tooltip-save')."\"/>
 481 <input tabindex='6' id='wpPreview' type='submit' value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 482 " title=\"".wfMsg('tooltip-preview')."\"/>
 483 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 484                 $wgOut->addWikiText( $copywarn );
 485                 $wgOut->addHTML( "
 486 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 487 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 488
 489                 if ( $isConflict ) {
 490                         require_once( "DifferenceEngine.php" );
 491                         $wgOut->addHTML( "<h2>" . wfMsg( "yourdiff" ) . "</h2>\n" );
 492                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 493                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 494
 495                         $wgOut->addHTML( "<h2>" . wfMsg( "yourtext" ) . "</h2>
 496 <textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 497 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox2 ) ) .
 498 "
 499 </textarea>" );
 500                 }
 501                 $wgOut->addHTML( "</form>\n" );
 502                 if($formtype =="preview" && !$wgUser->getOption("previewontop")) {
 503                         $wgOut->addHTML($previewhead);
 504                         $wgOut->addHTML($previewHTML);
 505                 }
 506         }
 507
 508         /**
 509          * @todo document
 510          */
 511         function blockedIPpage() {
 512                 global $wgOut, $wgUser, $wgContLang, $wgIP;
 513
 514                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 515                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 516                 $wgOut->setArticleRelated( false );
 517
 518                 $id = $wgUser->blockedBy();
 519                 $reason = $wgUser->blockedFor();
 520                 $ip = $wgIP;
 521
 522                 if ( is_numeric( $id ) ) {
 523                         $name = User::whoIs( $id );
 524                 } else {
 525                         $name = $id;
 526                 }
 527                 $link = '[[' . $wgContLang->getNsText( Namespace::getUser() ) .
 528                   ":{$name}|{$name}]]";
 529
 530                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 531                 $wgOut->returnToMain( false );
 532         }
 533
 534         /**
 535          * @todo document
 536          */
 537         function userNotLoggedInPage() {
 538                 global $wgOut, $wgUser;
 539
 540                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 541                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 542                 $wgOut->setArticleRelated( false );
 543
 544                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 545                 $wgOut->returnToMain( false );
 546         }
 547
 548         /**
 549          * @todo document
 550          */
 551         function spamPage ( $matches = array() )
 552         {
 553                 global $wgOut;
 554                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 555                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 556                 $wgOut->setArticleRelated( false );
 557
 558                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 559                 if ( isset ( $matches[0] ) ) {
 560                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$matches[0]}</nowiki>" ) );
 561                 }
 562                 $wgOut->returnToMain( false );
 563         }
 564
 565         /**
 566          * Forks processes to scan the originating IP for an open proxy server
 567          * MemCached can be used to skip IPs that have already been scanned
 568          */
 569         function proxyCheck() {
 570                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 571                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 572
 573                 if ( !$wgBlockOpenProxies ) {
 574                         return;
 575                 }
 576
 577                 # Get MemCached key
 578                 $skip = false;
 579                 if ( $wgUseMemCached ) {
 580                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 581                         $mcValue = $wgMemc->get( $mcKey );
 582                         if ( $mcValue ) {
 583                                 $skip = true;
 584                         }
 585                 }
 586
 587                 # Fork the processes
 588                 if ( !$skip ) {
 589                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 590                         $iphash = md5( $wgIP . $wgProxyKey );
 591                         $url = $title->getFullURL( 'ip='.$iphash );
 592
 593                         foreach ( $wgProxyPorts as $port ) {
 594                                 $params = implode( ' ', array(
 595                                                         escapeshellarg( $wgProxyScriptPath ),
 596                                                         escapeshellarg( $wgIP ),
 597                                                         escapeshellarg( $port ),
 598                                                         escapeshellarg( $url )
 599                                                         ));
 600                                 exec( "php $params &>/dev/null &" );
 601                         }
 602                         # Set MemCached key
 603                         if ( $wgUseMemCached ) {
 604                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 605                         }
 606                 }
 607         }
 608
 609         /**
 610          * @access private
 611          * @todo document
 612          */
 613         function mergeChangesInto( &$text ){
 614                 $fname = 'EditPage::mergeChangesInto';
 615                 $oldDate = $this->edittime;
 616                 $dbw =& wfGetDB( DB_MASTER );
 617                 $obj = $dbw->selectRow( 'cur', array( 'cur_text' ), array( 'cur_id' => $this->mTitle->getArticleID() ),
 618                         $fname, 'FOR UPDATE' );
 619
 620                 $yourtext = $obj->cur_text;
 621                 $ns = $this->mTitle->getNamespace();
 622                 $title = $this->mTitle->getDBkey();
 623                 $obj = $dbw->selectRow( 'old',
 624                         array( 'old_text','old_flags'),
 625                         array( 'old_namespace' => $ns, 'old_title' => $title,
 626                                 'old_timestamp' => $dbw->timestamp($oldDate)),
 627                         $fname );
 628                 $oldText = Article::getRevisionText( $obj );
 629
 630                 if(wfMerge($oldText, $text, $yourtext, $result)){
 631                         $text = $result;
 632                         return true;
 633                 } else {
 634                         return false;
 635                 }
 636         }
 637
 638
 639         function checkUnicodeCompliantBrowser() {
 640                 global $wgBrowserBlackList;
 641                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
 642                 foreach ( $wgBrowserBlackList as $browser ) {
 643                         if ( preg_match($browser, $currentbrowser) ) {
 644                                 return false;
 645                         }
 646                 }
 647                 return true;
 648         }
 649
 650         /**
 651          * Format an anchor fragment as it would appear for a given section name
 652          * @param string $text
 653          * @return string
 654          * @access private
 655          */
 656         function sectionAnchor( $text ) {
 657                 global $wgInputEncoding;
 658                 $headline = do_html_entity_decode( $text, ENT_COMPAT, $wgInputEncoding );
 659                 # strip out HTML
 660                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
 661                 $headline = trim( $headline );
 662                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
 663                 $replacearray = array(
 664                         '%3A' => ':',
 665                         '%' => '.'
 666                 );
 667                 return str_replace(
 668                         array_keys( $replacearray ),
 669                         array_values( $replacearray ),
 670                         $sectionanchor );
 671         }
 672 }
 673
 674 ?>