includes/EditPage.php

   1 <?php
   2 /**
   3  * Contain the EditPage class
   4  * @package MediaWiki
   5  */
   6
   7 /**
   8  * Splitting edit page/HTML interface from Article...
   9  * The actual database and text munging is still in Article,
  10  * but it should get easier to call those from alternate
  11  * interfaces.
  12  *
  13  * @package MediaWiki
  14  */
  15
  16 class EditPage {
  17         var $mArticle;
  18         var $mTitle;
  19         var $mMetaData = '';
  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 extracts metadata from the article body on the first view.
  40          * To turn the feature on, set $wgUseMetadataEdit = true ; in LocalSettings
  41          *  and set $wgMetadataWhitelist to the *full* title of the template whitelist
  42          */
  43         function extractMetaDataFromArticle ()
  44         {
  45                 global $wgUseMetadataEdit , $wgMetadataWhitelist , $wgLang ;
  46                 $this->mMetaData = "" ;
  47                 if ( !$wgUseMetadataEdit ) return ;
  48                 if ( $wgMetadataWhitelist == "" ) return ;
  49                 $s = "" ;
  50                 $t = $this->mArticle->getContent ( true ) ;
  51
  52                 # MISSING : <nowiki> filtering
  53
  54                 # Categories and language links
  55                 $t = explode ( "\n" , $t ) ;
  56                 $catlow = strtolower ( $wgLang->getNsText ( NS_CATEGORY ) ) ;
  57                 $cat = $ll = array() ;
  58                 foreach ( $t AS $key => $x )
  59                 {
  60                         $y = trim ( strtolower ( $x ) ) ;
  61                         while ( substr ( $y , 0 , 2 ) == "[[" )
  62                         {
  63                                 $y = explode ( "]]" , trim ( $x ) ) ;
  64                                 $first = array_shift ( $y ) ;
  65                                 $first = explode ( ":" , $first ) ;
  66                                 $ns = array_shift ( $first ) ;
  67                                 $ns = trim ( str_replace ( "[" , "" , $ns ) ) ;
  68                                 if ( strlen ( $ns ) == 2 OR strtolower ( $ns ) == $catlow )
  69                                 {
  70                                         $add = "[[" . $ns . ":" . implode ( ":" , $first ) . "]]" ;
  71                                         if ( strtolower ( $ns ) == $catlow ) $cat[] = $add ;
  72                                         else $ll[] = $add ;
  73                                         $x = implode ( "]]" , $y ) ;
  74                                         $t[$key] = $x ;
  75                                         $y = trim ( strtolower ( $x ) ) ;
  76                                 }
  77                         }
  78                 }
  79                 if ( count ( $cat ) ) $s .= implode ( " " , $cat ) . "\n" ;
  80                 if ( count ( $ll ) ) $s .= implode ( " " , $ll ) . "\n" ;
  81                 $t = implode ( "\n" , $t ) ;
  82
  83                 # Load whitelist
  84                 $sat = array () ; # stand-alone-templates; must be lowercase
  85                 $wl_title = Title::newFromText ( $wgMetadataWhitelist ) ;
  86                 $wl_article = new Article ( $wl_title ) ;
  87                 $wl = explode ( "\n" , $wl_article->getContent(true) ) ;
  88                 foreach ( $wl AS $x )
  89                 {
  90                         $isentry = false ;
  91                         $x = trim ( $x ) ;
  92                         while ( substr ( $x , 0 , 1 ) == "*" )
  93                         {
  94                                 $isentry = true ;
  95                                 $x = trim ( substr ( $x , 1 ) ) ;
  96                         }
  97                         if ( $isentry )
  98                         {
  99                                 $sat[] = strtolower ( $x ) ;
 100                         }
 101
 102                 }
 103
 104                 # Templates, but only some
 105                 $t = explode ( "{{" , $t ) ;
 106                 $tl = array () ;
 107                 foreach ( $t AS $key => $x )
 108                 {
 109                         $y = explode ( "}}" , $x , 2 ) ;
 110                         if ( count ( $y ) == 2 )
 111                         {
 112                                 $z = $y[0] ;
 113                                 $z = explode ( "|" , $z ) ;
 114                                 $tn = array_shift ( $z ) ;
 115                                 if ( in_array ( strtolower ( $tn ) , $sat ) )
 116                                 {
 117                                         $tl[] = "{{" . $y[0] . "}}" ;
 118                                         $t[$key] = $y[1] ;
 119                                         $y = explode ( "}}" , $y[1] , 2 ) ;
 120                                 }
 121                                 else $t[$key] = "{{" . $x ;
 122                         }
 123                         else if ( $key != 0 ) $t[$key] = "{{" . $x ;
 124                         else $t[$key] = $x ;
 125                 }
 126                 if ( count ( $tl ) ) $s .= implode ( " " , $tl ) ;
 127                 $t = implode ( "" , $t ) ;
 128
 129                 $t = str_replace ( "\n\n\n" , "\n" , $t ) ;
 130                 $this->mArticle->mContent = $t ;
 131                 $this->mMetaData = $s ;
 132         }
 133
 134         /**
 135          * This is the function that gets called for "action=edit".
 136          */
 137         function edit() {
 138                 global $wgOut, $wgUser, $wgWhitelistEdit, $wgRequest;
 139                 // this is not an article
 140                 $wgOut->setArticleFlag(false);
 141
 142                 $this->importFormData( $wgRequest );
 143
 144                 if( $this->live ) {
 145                         $this->livePreview();
 146                         return;
 147                 }
 148
 149                 if ( ! $this->mTitle->userCanEdit() ) {
 150                         $wgOut->readOnlyPage( $this->mArticle->getContent( true ), true );
 151                         return;
 152                 }
 153                 if ( $wgUser->isBlocked() ) {
 154                         $this->blockedIPpage();
 155                         return;
 156                 }
 157                 if ( !$wgUser->getID() && $wgWhitelistEdit ) {
 158                         $this->userNotLoggedInPage();
 159                         return;
 160                 }
 161                 if ( wfReadOnly() ) {
 162                         if( $this->save || $this->preview ) {
 163                                 $this->editForm( 'preview' );
 164                         } else {
 165                                 $wgOut->readOnlyPage( $this->mArticle->getContent( true ) );
 166                         }
 167                         return;
 168                 }
 169                 if ( $this->save ) {
 170                         $this->editForm( 'save' );
 171                 } else if ( $this->preview ) {
 172                         $this->editForm( 'preview' );
 173                 } else { # First time through
 174                         if( $wgUser->getOption('previewonfirst') ) {
 175                                 $this->editForm( 'preview', true );
 176                         } else {
 177                                 $this->extractMetaDataFromArticle () ;
 178                                 $this->editForm( 'initial', true );
 179                         }
 180                 }
 181         }
 182
 183         /**
 184          * @todo document
 185          */
 186         function importFormData( &$request ) {
 187                 # These fields need to be checked for encoding.
 188                 # Also remove trailing whitespace, but don't remove _initial_
 189                 # whitespace from the text boxes. This may be significant formatting.
 190                 $this->textbox1 = rtrim( $request->getText( 'wpTextbox1' ) );
 191                 $this->textbox2 = rtrim( $request->getText( 'wpTextbox2' ) );
 192                 $this->mMetaData = rtrim( $request->getText( 'metadata' ) );
 193                 $this->summary = trim( $request->getText( 'wpSummary' ) );
 194
 195                 $this->edittime = $request->getVal( 'wpEdittime' );
 196                 if( !preg_match( '/^\d{14}$/', $this->edittime )) $this->edittime = '';
 197
 198                 $this->preview = $request->getCheck( 'wpPreview' );
 199                 $this->save = $request->wasPosted() && !$this->preview;
 200                 $this->minoredit = $request->getCheck( 'wpMinoredit' );
 201                 $this->watchthis = $request->getCheck( 'wpWatchthis' );
 202
 203                 $this->oldid = $request->getInt( 'oldid' );
 204
 205                 # Section edit can come from either the form or a link
 206                 $this->section = $request->getVal( 'wpSection', $request->getVal( 'section' ) );
 207
 208                 $this->live = $request->getCheck( 'live' );
 209         }
 210
 211         /**
 212          * Since there is only one text field on the edit form,
 213          * pressing <enter> will cause the form to be submitted, but
 214          * the submit button value won't appear in the query, so we
 215          * Fake it here before going back to edit().  This is kind of
 216          * ugly, but it helps some old URLs to still work.
 217          */
 218         function submit() {
 219                 if( !$this->preview ) $this->save = true;
 220
 221                 $this->edit();
 222         }
 223
 224         /**
 225          * The edit form is self-submitting, so that when things like
 226          * preview and edit conflicts occur, we get the same form back
 227          * with the extra stuff added.  Only when the final submission
 228          * is made and all is well do we actually save and redirect to
 229          * the newly-edited page.
 230          *
 231          * @param string $formtype Type of form either : save, initial or preview
 232          * @param bool $firsttime True to load form data from db
 233          */
 234         function editForm( $formtype, $firsttime = false ) {
 235                 global $wgOut, $wgUser;
 236                 global $wgLang, $wgContLang, $wgParser, $wgTitle;
 237                 global $wgAllowAnonymousMinor;
 238                 global $wgWhitelistEdit;
 239                 global $wgSpamRegex, $wgFilterCallback;
 240                 global $wgUseLatin1;
 241
 242                 $sk = $wgUser->getSkin();
 243                 $isConflict = false;
 244                 // css / js subpages of user pages get a special treatment
 245                 $isCssJsSubpage = (Namespace::getUser() == $wgTitle->getNamespace() and preg_match("/\\.(css|js)$/", $wgTitle->getText() ));
 246
 247                 if(!$this->mTitle->getArticleID()) { # new article
 248                         $wgOut->addWikiText(wfmsg('newarticletext'));
 249                 }
 250
 251                 if( Namespace::isTalk( $this->mTitle->getNamespace() ) ) {
 252                         $wgOut->addWikiText(wfmsg('talkpagetext'));
 253                 }
 254
 255                 # Attempt submission here.  This will check for edit conflicts,
 256                 # and redundantly check for locked database, blocked IPs, etc.
 257                 # that edit() already checked just in case someone tries to sneak
 258                 # in the back door with a hand-edited submission URL.
 259
 260                 if ( 'save' == $formtype ) {
 261                         # Reintegrate metadata
 262                         if ( $this->mMetaData != "" ) $this->textbox1 .= "\n" . $this->mMetaData ;
 263                         $this->mMetaData = "" ;
 264
 265                         # Check for spam
 266                         if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1, $matches ) ) {
 267                                 $this->spamPage ( $matches[0] );
 268                                 return;
 269                         }
 270                         if ( $wgFilterCallback && $wgFilterCallback( $this->mTitle, $this->textbox1, $this->section ) ) {
 271                                 # Error messages or other handling should be performed by the filter function
 272                                 return;
 273                         }
 274                         if ( $wgUser->isBlocked() ) {
 275                                 $this->blockedIPpage();
 276                                 return;
 277                         }
 278                         if ( !$wgUser->getID() && $wgWhitelistEdit ) {
 279                                 $this->userNotLoggedInPage();
 280                                 return;
 281                         }
 282                         if ( wfReadOnly() ) {
 283                                 $wgOut->readOnlyPage();
 284                                 return;
 285                         }
 286
 287                         # If article is new, insert it.
 288                         $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
 289                         if ( 0 == $aid ) {
 290                                 # Don't save a new article if it's blank.
 291                                 if ( ( '' == $this->textbox1 ) ||
 292                                   ( wfMsg( 'newarticletext' ) == $this->textbox1 ) ) {
 293                                         $wgOut->redirect( $this->mTitle->getFullURL() );
 294                                         return;
 295                                 }
 296                                 if (wfRunHooks('ArticleSave', $this->mArticle, $wgUser, $this->textbox1,
 297                                                            $this->summary, $this->minoredit, $this->watchthis, NULL))
 298                                 {
 299                                         $this->mArticle->insertNewArticle( $this->textbox1, $this->summary,
 300                                                                                                            $this->minoredit, $this->watchthis );
 301                                         wfRunHooks('ArticleSaveComplete', $this->mArticle, $wgUser, $this->textbox1,
 302                                                            $this->summary, $this->minoredit, $this->watchthis, NULL);
 303                                 }
 304                                 return;
 305                         }
 306
 307                         # Article exists. Check for edit conflict.
 308
 309                         $this->mArticle->clear(); # Force reload of dates, etc.
 310                         $this->mArticle->forUpdate( true ); # Lock the article
 311
 312                         if( ( $this->section != 'new' ) &&
 313                                 ($this->mArticle->getTimestamp() != $this->edittime ) ) {
 314                                 $isConflict = true;
 315                         }
 316                         $userid = $wgUser->getID();
 317
 318                         if ( $isConflict) {
 319                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 320                                         $this->section, $this->textbox1, $this->summary, $this->edittime);
 321                         }
 322                         else {
 323                                 $text = $this->mArticle->getTextOfLastEditWithSectionReplacedOrAdded(
 324                                         $this->section, $this->textbox1, $this->summary);
 325                         }
 326                         # Suppress edit conflict with self
 327
 328                         if ( ( 0 != $userid ) && ( $this->mArticle->getUser() == $userid ) ) {
 329                                 $isConflict = false;
 330                         } else {
 331                                 # switch from section editing to normal editing in edit conflict
 332                                 if($isConflict) {
 333                                         # Attempt merge
 334                                         if( $this->mergeChangesInto( $text ) ){
 335                                                 // Successful merge! Maybe we should tell the user the good news?
 336                                                 $isConflict = false;
 337                                         } else {
 338                                                 $this->section = '';
 339                                                 $this->textbox1 = $text;
 340                                         }
 341                                 }
 342                         }
 343                         if ( ! $isConflict ) {
 344                                 # All's well
 345                                 $sectionanchor = '';
 346                                 if( $this->section == 'new' ) {
 347                                         if( $this->summary != '' ) {
 348                                                 $sectionanchor = $this->sectionAnchor( $this->summary );
 349                                         }
 350                                 } elseif( $this->section != '' ) {
 351                                         # Try to get a section anchor from the section source, redirect to edited section if header found
 352                                         # XXX: might be better to integrate this into Article::getTextOfLastEditWithSectionReplacedOrAdded
 353                                         # for duplicate heading checking and maybe parsing
 354                                         $hasmatch = preg_match( "/^ *([=]{1,6})(.*?)(\\1) *\\n/i", $this->textbox1, $matches );
 355                                         # we can't deal with anchors, includes, html etc in the header for now,
 356                                         # headline would need to be parsed to improve this
 357                                         #if($hasmatch and strlen($matches[2]) > 0 and !preg_match( "/[\\['{<>]/", $matches[2])) {
 358                                         if($hasmatch and strlen($matches[2]) > 0) {
 359                                                 $sectionanchor = $this->sectionAnchor( $matches[2] );
 360                                         }
 361                                 }
 362
 363                                 if (wfRunHooks('ArticleSave', $this->mArticle, $wgUser, $text, $this->summary,
 364                                                            $this->minoredit, $this->watchthis, $sectionanchor))
 365                                 {
 366                                         # update the article here
 367                                         if($this->mArticle->updateArticle( $text, $this->summary, $this->minoredit,
 368                                                                                                            $this->watchthis, '', $sectionanchor ))
 369                                         {
 370                                                 wfRunHooks('ArticleSaveComplete', $this->mArticle, $wgUser, $text, $this->summary,
 371                                                                    $this->minoredit, $this->watchthis, $sectionanchor);
 372                                                 return;
 373                                         }
 374                                         else
 375                                           $isConflict = true;
 376                                 }
 377                         }
 378                 }
 379                 # First time through: get contents, set time for conflict
 380                 # checking, etc.
 381
 382                 if ( 'initial' == $formtype || $firsttime ) {
 383                         $this->edittime = $this->mArticle->getTimestamp();
 384                         $this->textbox1 = $this->mArticle->getContent( true );
 385                         $this->summary = '';
 386                         $this->proxyCheck();
 387                 }
 388                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 389
 390                 # Enabled article-related sidebar, toplinks, etc.
 391                 $wgOut->setArticleRelated( true );
 392
 393                 if ( $isConflict ) {
 394                         $s = wfMsg( 'editconflict', $this->mTitle->getPrefixedText() );
 395                         $wgOut->setPageTitle( $s );
 396                         $wgOut->addHTML( wfMsg( 'explainconflict' ) );
 397
 398                         $this->textbox2 = $this->textbox1;
 399                         $this->textbox1 = $this->mArticle->getContent( true );
 400                         $this->edittime = $this->mArticle->getTimestamp();
 401                 } else {
 402
 403                         if( $this->section != '' ) {
 404                                 if( $this->section == 'new' ) {
 405                                         $s = wfMsg('editingcomment', $this->mTitle->getPrefixedText() );
 406                                 } else {
 407                                         $s = wfMsg('editingsection', $this->mTitle->getPrefixedText() );
 408                                 }
 409                                 if(!$this->preview) {
 410                                         preg_match( "/^(=+)(.+)\\1/mi",
 411                                                 $this->textbox1,
 412                                                 $matches );
 413                                         if( !empty( $matches[2] ) ) {
 414                                                 $this->summary = "/* ". trim($matches[2])." */ ";
 415                                         }
 416                                 }
 417                         } else {
 418                                 $s = wfMsg( 'editing', $this->mTitle->getPrefixedText() );
 419                         }
 420                         $wgOut->setPageTitle( $s );
 421                         if ( !$wgUseLatin1 && !$this->checkUnicodeCompliantBrowser() ) {
 422                                 $this->mArticle->setOldSubtitle();
 423                                 $wgOut->addWikiText( wfMsg( 'nonunicodebrowser') );
 424                         }
 425                         if ( $this->oldid ) {
 426                                 $this->mArticle->setOldSubtitle();
 427                                 $wgOut->addHTML( wfMsg( 'editingold' ) );
 428                         }
 429                 }
 430
 431                 if( wfReadOnly() ) {
 432                         $wgOut->addHTML( '<strong>' .
 433                         wfMsg( 'readonlywarning' ) .
 434                         "</strong>" );
 435                 } else if ( $isCssJsSubpage and 'preview' != $formtype) {
 436                         $wgOut->addHTML( wfMsg( 'usercssjsyoucanpreview' ));
 437                 }
 438                 if( $this->mTitle->isProtected('edit') ) {
 439                         $wgOut->addHTML( '<strong>' . wfMsg( 'protectedpagewarning' ) .
 440                           "</strong><br />\n" );
 441                 }
 442
 443                 $kblength = (int)(strlen( $this->textbox1 ) / 1024);
 444                 if( $kblength > 29 ) {
 445                         $wgOut->addHTML( '<strong>' .
 446                                 wfMsg( 'longpagewarning', $wgLang->formatNum( $kblength ) )
 447                                 . '</strong>' );
 448                 }
 449
 450                 $rows = $wgUser->getOption( 'rows' );
 451                 $cols = $wgUser->getOption( 'cols' );
 452
 453                 $ew = $wgUser->getOption( 'editwidth' );
 454                 if ( $ew ) $ew = " style=\"width:100%\"";
 455                 else $ew = '';
 456
 457                 $q = 'action=submit';
 458                 #if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 459                 $action = $this->mTitle->escapeLocalURL( $q );
 460
 461                 $summary = wfMsg('summary');
 462                 $subject = wfMsg('subject');
 463                 $minor   = wfMsg('minoredit');
 464                 $watchthis = wfMsg ('watchthis');
 465                 $save = wfMsg('savearticle');
 466                 $prev = wfMsg('showpreview');
 467
 468                 $cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
 469                                 wfMsg('cancel') );
 470                 $edithelpurl = $sk->makeUrl( wfMsg( 'edithelppage' ));
 471                 $edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
 472                         htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
 473                         htmlspecialchars( wfMsg( 'newwindow' ) );
 474
 475                 global $wgRightsText;
 476                 $copywarn = "<div id=\"editpage-copywarn\">\n" .
 477                         wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
 478                                 '[[' . wfMsg( 'copyrightpage' ) . ']]',
 479                                 $wgRightsText ) . "\n</div>";
 480
 481                 if( $wgUser->getOption('showtoolbar') and !$isCssJsSubpage ) {
 482                         # prepare toolbar for edit buttons
 483                         $toolbar = $this->getEditToolbar();
 484                 } else {
 485                         $toolbar = '';
 486                 }
 487
 488                 // activate checkboxes if user wants them to be always active
 489                 if( !$this->preview ) {
 490                         if( $wgUser->getOption( 'watchdefault' ) ) $this->watchthis = true;
 491                         if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
 492
 493                         // activate checkbox also if user is already watching the page,
 494                         // require wpWatchthis to be unset so that second condition is not
 495                         // checked unnecessarily
 496                         if( !$this->watchthis && $this->mTitle->userIsWatching() ) $this->watchthis = true;
 497                 }
 498
 499                 $minoredithtml = '';
 500
 501                 if ( 0 != $wgUser->getID() || $wgAllowAnonymousMinor ) {
 502                         $minoredithtml =
 503                                 "<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
 504                                 " accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />".
 505                                 "<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>";
 506                 }
 507
 508                 $watchhtml = '';
 509
 510                 if ( 0 != $wgUser->getID() ) {
 511                         $watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".($this->watchthis?" checked='checked'":"").
 512                                 " accesskey='".wfMsg('accesskey-watch')."' id='wpWatchthis'  />".
 513                                 "<label for='wpWatchthis' title='".wfMsg('tooltip-watch')."'>{$watchthis}</label>";
 514                 }
 515
 516                 $checkboxhtml = $minoredithtml . $watchhtml . '<br />';
 517
 518                 $wgOut->addHTML( '<div id="wikiPreview">' );
 519                 if ( 'preview' == $formtype) {
 520                         $previewOutput = $this->getPreviewText( $isConflict, $isCssJsSubpage );
 521                         if( $wgUser->getOption('previewontop' ) ) {
 522                                 $wgOut->addHTML( $previewOutput );
 523                                 $wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
 524                         }
 525                 }
 526                 $wgOut->addHTML( '</div>' );
 527
 528                 # if this is a comment, show a subject line at the top, which is also the edit summary.
 529                 # Otherwise, show a summary field at the bottom
 530                 $summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
 531                         if( $this->section == 'new' ) {
 532                                 $commentsubject="{$subject}: <input tabindex='1' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 533                                 $editsummary = '';
 534                         } else {
 535                                 $commentsubject = '';
 536                                 $editsummary="{$summary}: <input tabindex='3' type='text' value=\"$summarytext\" name=\"wpSummary\" maxlength='200' size='60' /><br />";
 537                         }
 538
 539                 if( !$this->preview ) {
 540                 # Don't select the edit box on preview; this interferes with seeing what's going on.
 541                         $wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
 542                 }
 543                 # Prepare a list of templates used by this page
 544                 $db =& wfGetDB( DB_SLAVE );
 545                 $page = $db->tableName( 'page' );
 546                 $links = $db->tableName( 'links' );
 547                 $id = $this->mTitle->getArticleID();
 548                 $sql = "SELECT page_namespace,page_title,page_id ".
 549                         "FROM $page,$links WHERE l_to=page_id AND l_from={$id} and page_namespace=".NS_TEMPLATE;
 550                 $res = $db->query( $sql, "EditPage::editform" );
 551
 552                 if ( $db->numRows( $res ) ) {
 553                         $templates = '<br />'. wfMsg( 'templatesused' ) . '<ul>';
 554                         while ( $row = $db->fetchObject( $res ) ) {
 555                                 if ( $titleObj = Title::makeTitle( $row->page_namespace, $row->page_title ) ) {
 556                                         $templates .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
 557                                 }
 558                         }
 559                         $templates .= '</ul>';
 560                 } else {
 561                         $templates = '';
 562                 }
 563
 564                 global $wgLivePreview, $wgStylePath;
 565                 /**
 566                  * Live Preview lets us fetch rendered preview page content and
 567                  * add it to the page without refreshing the whole page.
 568                  * Set up the button for it; if not supported by the browser
 569                  * it will fall through to the normal form submission method.
 570                  */
 571                 if( $wgLivePreview ) {
 572                         $wgOut->addHTML( '<script type="text/javascript" src="' .
 573                                 htmlspecialchars( $wgStylePath . '/common/preview.js' ) .
 574                                 '"></script>' . "\n" );
 575                         $liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
 576                         $liveOnclick = 'onclick="return !livePreview('.
 577                                 'getElementById(\'wikiPreview\'),' .
 578                                 'editform.wpTextbox1.value,' .
 579                                 htmlspecialchars( '"' . $liveAction . '"' ) . ')"';
 580                 } else {
 581                         $liveOnclick = '';
 582                 }
 583
 584                 global $wgUseMetadataEdit ;
 585                 if ( $wgUseMetadataEdit )
 586                 {
 587                         $metadata = $this->mMetaData ;
 588                         $metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
 589                         $helppage = Title::newFromText ( wfmsg("metadata_page") ) ;
 590                         $top = str_replace ( "$1" , $helppage->getInternalURL() , wfmsg("metadata") ) ;
 591                         $metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
 592                 }
 593                 else $metadata = "" ;
 594
 595
 596                 $wgOut->addHTML( <<<END
 597 {$toolbar}
 598 <form id="editform" name="editform" method="post" action="$action"
 599 enctype="multipart/form-data">
 600 {$commentsubject}
 601 <textarea tabindex='1' accesskey="," name="wpTextbox1" rows='{$rows}'
 602 cols='{$cols}'{$ew}>
 603 END
 604 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox1 ) ) .
 605 "
 606 </textarea>
 607 {$metadata}
 608 <br />{$editsummary}
 609 {$checkboxhtml}
 610 <input tabindex='5' id='wpSave' type='submit' value=\"{$save}\" name=\"wpSave\" accesskey=\"".wfMsg('accesskey-save')."\"".
 611 " title=\"".wfMsg('tooltip-save')."\"/>
 612 <input tabindex='6' id='wpPreview' type='submit' $liveOnclick value=\"{$prev}\" name=\"wpPreview\" accesskey=\"".wfMsg('accesskey-preview')."\"".
 613 " title=\"".wfMsg('tooltip-preview')."\"/>
 614 <em>{$cancel}</em> | <em>{$edithelp}</em>{$templates}" );
 615                 $wgOut->addWikiText( $copywarn );
 616                 $wgOut->addHTML( "
 617 <input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
 618 <input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n" );
 619
 620                 if ( $isConflict ) {
 621                         require_once( "DifferenceEngine.php" );
 622                         $wgOut->addHTML( "<h2>" . wfMsg( "yourdiff" ) . "</h2>\n" );
 623                         DifferenceEngine::showDiff( $this->textbox2, $this->textbox1,
 624                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 625
 626                         $wgOut->addHTML( "<h2>" . wfMsg( "yourtext" ) . "</h2>
 627 <textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
 628 . htmlspecialchars( $wgContLang->recodeForEdit( $this->textbox2 ) ) .
 629 "
 630 </textarea>" );
 631                 }
 632                 $wgOut->addHTML( "</form>\n" );
 633                 if($formtype =="preview" && !$wgUser->getOption("previewontop")) {
 634                         $wgOut->addHTML('<div id="wikiPreview">' . $previewOutput . '</div>');
 635                 }
 636         }
 637
 638         function getPreviewText( $isConflict, $isCssJsSubpage ) {
 639                 global $wgOut, $wgUser, $wgTitle, $wgParser;
 640                 $previewhead='<h2>' . wfMsg( 'preview' ) . "</h2>\n<p><center><font color=\"#cc0000\">" .
 641                         wfMsg( 'note' ) . wfMsg( 'previewnote' ) . "</font></center></p>\n";
 642                 if ( $isConflict ) {
 643                         $previewhead.='<h2>' . wfMsg( 'previewconflict' ) .
 644                                 "</h2>\n";
 645                 }
 646
 647                 $parserOptions = ParserOptions::newFromUser( $wgUser );
 648                 $parserOptions->setEditSection( false );
 649                 $parserOptions->setEditSectionOnRightClick( false );
 650
 651                 # don't parse user css/js, show message about preview
 652                 # XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
 653
 654                 if ( $isCssJsSubpage ) {
 655                         if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
 656                                 $previewtext = wfMsg('usercsspreview');
 657                         } else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
 658                                 $previewtext = wfMsg('userjspreview');
 659                         }
 660                         $parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
 661                         $wgOut->addHTML( $parserOutput->mText );
 662                 } else {
 663                         # if user want to see preview when he edit an article
 664                         if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
 665                                 $this->textbox1 = $this->mArticle->getContent(true);
 666                         }
 667
 668                         $toparse = $this->textbox1 ;
 669                         if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
 670
 671                         $parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
 672                                         $wgTitle, $parserOptions );
 673
 674                         $previewHTML = $parserOutput->mText;
 675                         $wgOut->addCategoryLinks($parserOutput->getCategoryLinks());
 676                         $wgOut->addLanguageLinks($parserOutput->getLanguageLinks());
 677                 }
 678                 return $previewhead . $previewHTML;
 679         }
 680
 681         /**
 682          * @todo document
 683          */
 684         function blockedIPpage() {
 685                 global $wgOut, $wgUser, $wgContLang, $wgIP;
 686
 687                 $wgOut->setPageTitle( wfMsg( 'blockedtitle' ) );
 688                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 689                 $wgOut->setArticleRelated( false );
 690
 691                 $id = $wgUser->blockedBy();
 692                 $reason = $wgUser->blockedFor();
 693                 $ip = $wgIP;
 694
 695                 if ( is_numeric( $id ) ) {
 696                         $name = User::whoIs( $id );
 697                 } else {
 698                         $name = $id;
 699                 }
 700                 $link = '[[' . $wgContLang->getNsText( Namespace::getUser() ) .
 701                   ":{$name}|{$name}]]";
 702
 703                 $wgOut->addWikiText( wfMsg( 'blockedtext', $link, $reason, $ip, $name ) );
 704                 $wgOut->returnToMain( false );
 705         }
 706
 707         /**
 708          * @todo document
 709          */
 710         function userNotLoggedInPage() {
 711                 global $wgOut, $wgUser;
 712
 713                 $wgOut->setPageTitle( wfMsg( 'whitelistedittitle' ) );
 714                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 715                 $wgOut->setArticleRelated( false );
 716
 717                 $wgOut->addWikiText( wfMsg( 'whitelistedittext' ) );
 718                 $wgOut->returnToMain( false );
 719         }
 720
 721         /**
 722          * @todo document
 723          */
 724         function spamPage ( $match = false )
 725         {
 726                 global $wgOut;
 727                 $wgOut->setPageTitle( wfMsg( 'spamprotectiontitle' ) );
 728                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 729                 $wgOut->setArticleRelated( false );
 730
 731                 $wgOut->addWikiText( wfMsg( 'spamprotectiontext' ) );
 732                 if ( $match ) {
 733                         $wgOut->addWikiText( wfMsg( 'spamprotectionmatch', "<nowiki>{$match}</nowiki>" ) );
 734                 }
 735                 $wgOut->returnToMain( false );
 736         }
 737
 738         /**
 739          * Forks processes to scan the originating IP for an open proxy server
 740          * MemCached can be used to skip IPs that have already been scanned
 741          */
 742         function proxyCheck() {
 743                 global $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath;
 744                 global $wgIP, $wgUseMemCached, $wgMemc, $wgDBname, $wgProxyMemcExpiry;
 745
 746                 if ( !$wgBlockOpenProxies ) {
 747                         return;
 748                 }
 749
 750                 # Get MemCached key
 751                 $skip = false;
 752                 if ( $wgUseMemCached ) {
 753                         $mcKey = $wgDBname.':proxy:ip:'.$wgIP;
 754                         $mcValue = $wgMemc->get( $mcKey );
 755                         if ( $mcValue ) {
 756                                 $skip = true;
 757                         }
 758                 }
 759
 760                 # Fork the processes
 761                 if ( !$skip ) {
 762                         $title = Title::makeTitle( NS_SPECIAL, 'Blockme' );
 763                         $iphash = md5( $wgIP . $wgProxyKey );
 764                         $url = $title->getFullURL( 'ip='.$iphash );
 765
 766                         foreach ( $wgProxyPorts as $port ) {
 767                                 $params = implode( ' ', array(
 768                                                         escapeshellarg( $wgProxyScriptPath ),
 769                                                         escapeshellarg( $wgIP ),
 770                                                         escapeshellarg( $port ),
 771                                                         escapeshellarg( $url )
 772                                                         ));
 773                                 exec( "php $params &>/dev/null &" );
 774                         }
 775                         # Set MemCached key
 776                         if ( $wgUseMemCached ) {
 777                                 $wgMemc->set( $mcKey, 1, $wgProxyMemcExpiry );
 778                         }
 779                 }
 780         }
 781
 782         /**
 783          * @access private
 784          * @todo document
 785          */
 786         function mergeChangesInto( &$text ){
 787                 $yourtext = $this->mArticle->fetchRevisionText();
 788
 789                 $db =& wfGetDB( DB_SLAVE );
 790                 $oldText = $this->mArticle->fetchRevisionText(
 791                         $db->timestamp( $this->edittime ),
 792                         'rev_timestamp' );
 793
 794                 if(wfMerge($oldText, $text, $yourtext, $result)){
 795                         $text = $result;
 796                         return true;
 797                 } else {
 798                         return false;
 799                 }
 800         }
 801
 802
 803         function checkUnicodeCompliantBrowser() {
 804                 global $wgBrowserBlackList;
 805                 $currentbrowser = $_SERVER["HTTP_USER_AGENT"];
 806                 foreach ( $wgBrowserBlackList as $browser ) {
 807                         if ( preg_match($browser, $currentbrowser) ) {
 808                                 return false;
 809                         }
 810                 }
 811                 return true;
 812         }
 813
 814         /**
 815          * Format an anchor fragment as it would appear for a given section name
 816          * @param string $text
 817          * @return string
 818          * @access private
 819          */
 820         function sectionAnchor( $text ) {
 821                 global $wgInputEncoding;
 822                 $headline = do_html_entity_decode( $text, ENT_COMPAT, $wgInputEncoding );
 823                 # strip out HTML
 824                 $headline = preg_replace( '/<.*?' . '>/', '', $headline );
 825                 $headline = trim( $headline );
 826                 $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) );
 827                 $replacearray = array(
 828                         '%3A' => ':',
 829                         '%' => '.'
 830                 );
 831                 return str_replace(
 832                         array_keys( $replacearray ),
 833                         array_values( $replacearray ),
 834                         $sectionanchor );
 835         }
 836
 837         /**
 838          * Shows a bulletin board style toolbar for common editing functions.
 839          * It can be disabled in the user preferences.
 840          * The necessary JavaScript code can be found in style/wikibits.js.
 841          */
 842         function getEditToolbar() {
 843                 global $wgStylePath, $wgLang, $wgMimeType;
 844
 845                 /**
 846                  * toolarray an array of arrays which each include the filename of
 847                  * the button image (without path), the opening tag, the closing tag,
 848                  * and optionally a sample text that is inserted between the two when no
 849                  * selection is highlighted.
 850                  * The tip text is shown when the user moves the mouse over the button.
 851                  *
 852                  * Already here are accesskeys (key), which are not used yet until someone
 853                  * can figure out a way to make them work in IE. However, we should make
 854                  * sure these keys are not defined on the edit page.
 855                  */
 856                 $toolarray=array(
 857                         array(  'image'=>'button_bold.png',
 858                                         'open'  =>      "\'\'\'",
 859                                         'close' =>      "\'\'\'",
 860                                         'sample'=>      wfMsg('bold_sample'),
 861                                         'tip'   =>      wfMsg('bold_tip'),
 862                                         'key'   =>      'B'
 863                                 ),
 864                         array(  'image'=>'button_italic.png',
 865                                         'open'  =>      "\'\'",
 866                                         'close' =>      "\'\'",
 867                                         'sample'=>      wfMsg('italic_sample'),
 868                                         'tip'   =>      wfMsg('italic_tip'),
 869                                         'key'   =>      'I'
 870                                 ),
 871                         array(  'image'=>'button_link.png',
 872                                         'open'  =>      '[[',
 873                                         'close' =>      ']]',
 874                                         'sample'=>      wfMsg('link_sample'),
 875                                         'tip'   =>      wfMsg('link_tip'),
 876                                         'key'   =>      'L'
 877                                 ),
 878                         array(  'image'=>'button_extlink.png',
 879                                         'open'  =>      '[',
 880                                         'close' =>      ']',
 881                                         'sample'=>      wfMsg('extlink_sample'),
 882                                         'tip'   =>      wfMsg('extlink_tip'),
 883                                         'key'   =>      'X'
 884                                 ),
 885                         array(  'image'=>'button_headline.png',
 886                                         'open'  =>      "\\n== ",
 887                                         'close' =>      " ==\\n",
 888                                         'sample'=>      wfMsg('headline_sample'),
 889                                         'tip'   =>      wfMsg('headline_tip'),
 890                                         'key'   =>      'H'
 891                                 ),
 892                         array(  'image'=>'button_image.png',
 893                                         'open'  =>      '[['.$wgLang->getNsText(NS_IMAGE).":",
 894                                         'close' =>      ']]',
 895                                         'sample'=>      wfMsg('image_sample'),
 896                                         'tip'   =>      wfMsg('image_tip'),
 897                                         'key'   =>      'D'
 898                                 ),
 899                         array(  'image' =>      'button_media.png',
 900                                         'open'  =>      '[['.$wgLang->getNsText(NS_MEDIA).':',
 901                                         'close' =>      ']]',
 902                                         'sample'=>      wfMsg('media_sample'),
 903                                         'tip'   =>      wfMsg('media_tip'),
 904                                         'key'   =>      'M'
 905                                 ),
 906                         array(  'image' =>      'button_math.png',
 907                                         'open'  =>      "\\<math\\>",
 908                                         'close' =>      "\\</math\\>",
 909                                         'sample'=>      wfMsg('math_sample'),
 910                                         'tip'   =>      wfMsg('math_tip'),
 911                                         'key'   =>      'C'
 912                                 ),
 913                         array(  'image' =>      'button_nowiki.png',
 914                                         'open'  =>      "\\<nowiki\\>",
 915                                         'close' =>      "\\</nowiki\\>",
 916                                         'sample'=>      wfMsg('nowiki_sample'),
 917                                         'tip'   =>      wfMsg('nowiki_tip'),
 918                                         'key'   =>      'N'
 919                                 ),
 920                         array(  'image' =>      'button_sig.png',
 921                                         'open'  =>      '--~~~~',
 922                                         'close' =>      '',
 923                                         'sample'=>      '',
 924                                         'tip'   =>      wfMsg('sig_tip'),
 925                                         'key'   =>      'Y'
 926                                 ),
 927                         array(  'image' =>      'button_hr.png',
 928                                         'open'  =>      "\\n----\\n",
 929                                         'close' =>      '',
 930                                         'sample'=>      '',
 931                                         'tip'   =>      wfMsg('hr_tip'),
 932                                         'key'   =>      'R'
 933                                 )
 934                 );
 935                 $toolbar ="<script type='text/javascript'>\n/*<![CDATA[*/\n";
 936
 937                 $toolbar.="document.writeln(\"<div id='toolbar'>\");\n";
 938                 foreach($toolarray as $tool) {
 939
 940                         $image=$wgStylePath.'/common/images/'.$tool['image'];
 941                         $open=$tool['open'];
 942                         $close=$tool['close'];
 943                         $sample = addslashes( $tool['sample'] );
 944
 945                         // Note that we use the tip both for the ALT tag and the TITLE tag of the image.
 946                         // Older browsers show a "speedtip" type message only for ALT.
 947                         // Ideally these should be different, realistically they
 948                         // probably don't need to be.
 949                         $tip = addslashes( $tool['tip'] );
 950
 951                         #$key = $tool["key"];
 952
 953                         $toolbar.="addButton('$image','$tip','$open','$close','$sample');\n";
 954                 }
 955
 956                 $toolbar.="addInfobox('" . addslashes( wfMsg( "infobox" ) ) . "','" . addslashes(wfMsg("infobox_alert")) . "');\n";
 957                 $toolbar.="document.writeln(\"</div>\");\n";
 958
 959                 $toolbar.="/*]]>*/\n</script>";
 960                 return $toolbar;
 961         }
 962
 963         /**
 964          * Output preview text only. This can be sucked into the edit page
 965          * via JavaScript, and saves the server time rendering the skin as
 966          * well as theoretically being more robust on the client (doesn't
 967          * disturb the edit box's undo history, won't eat your text on
 968          * failure, etc).
 969          *
 970          * @todo This doesn't include category or interlanguage links.
 971          *       Would need to enhance it a bit, maybe wrap them in XML
 972          *       or something... that might also require more skin
 973          *       initialization, so check whether that's a problem.
 974          */
 975         function livePreview() {
 976                 global $wgOut;
 977                 $wgOut->disable();
 978                 header( 'Content-type: text/xml' );
 979                 header( 'Cache-control: no-cache' );
 980                 # FIXME
 981                 echo $this->getPreviewText( false, false );
 982         }
 983
 984 }
 985
 986 ?>