includes/EditPage.php

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