includes/Article.php

   1 <?
   2 # Class representing a Wikipedia article and history.
   3 # See design.doc for an overview.
   4
   5 class Article {
   6         /* private */ var $mContent, $mContentLoaded;
   7         /* private */ var $mUser, $mTimestamp, $mUserText;
   8         /* private */ var $mCounter, $mComment, $mCountAdjustment;
   9         /* private */ var $mMinorEdit, $mRedirectedFrom;
  10         /* private */ var $mTouched, $mFileCache;
  11
  12         function Article() { $this->clear(); }
  13
  14         /* private */ function clear()
  15         {
  16                 $this->mContentLoaded = false;
  17                 $this->mUser = $this->mCounter = -1; # Not loaded
  18                 $this->mRedirectedFrom = $this->mUserText =
  19                 $this->mTimestamp = $this->mComment = $this->mFileCache = "";
  20                 $this->mCountAdjustment = 0;
  21                 $this->mTouched = "19700101000000";
  22         }
  23
  24         /* static */ function newFromID( $newid )
  25         {
  26                 global $wgOut, $wgTitle, $wgArticle;
  27                 $a = new Article();
  28                 $n = Article::nameOf( $newid );
  29
  30                 $wgTitle = Title::newFromDBkey( $n );
  31                 $wgTitle->resetArticleID( $newid );
  32
  33                 return $a;
  34         }
  35
  36         /* static */ function nameOf( $id )
  37         {
  38                 $sql = "SELECT cur_namespace,cur_title FROM cur WHERE " .
  39                   "cur_id={$id}";
  40                 $res = wfQuery( $sql, "Article::nameOf" );
  41                 if ( 0 == wfNumRows( $res ) ) { return NULL; }
  42
  43                 $s = wfFetchObject( $res );
  44                 $n = Title::makeName( $s->cur_namespace, $s->cur_title );
  45                 return $n;
  46         }
  47
  48         # Note that getContent/loadContent may follow redirects if
  49         # not told otherwise, and so may cause a change to wgTitle.
  50
  51         function getContent( $noredir = false )
  52         {
  53                 global $action,$section,$count,$wgTitle; # From query string
  54                 wfProfileIn( "Article::getContent" );
  55
  56                 if ( 0 == $this->getID() ) {
  57                         if ( "edit" == $action ) {
  58
  59                                 global $wgTitle;
  60                                 return ""; # was "newarticletext", now moved above the box)
  61
  62
  63                         }
  64                         wfProfileOut();
  65                         return wfMsg( "noarticletext" );
  66                 } else {
  67                         $this->loadContent( $noredir );
  68                         wfProfileOut();
  69
  70                         if(
  71                                 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
  72                                 ( $wgTitle->getNamespace() == Namespace::getTalk( Namespace::getUser()) ) &&
  73                                   preg_match("/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/",$wgTitle->getText()) &&
  74                                   $action=="view"
  75                                 )
  76                                 {
  77                                 return $this->mContent . "\n" .wfMsg("anontalkpagetext"); }
  78                         else {
  79                                 if($action=="edit") {
  80                                         if($section!="") {
  81
  82                                                 $secs=preg_split("/(^=+.*?=+)/m",
  83                                                  $this->mContent, -1,
  84                                                  PREG_SPLIT_DELIM_CAPTURE);
  85                                                 if($section==0) {
  86                                                         return trim($secs[0]);
  87                                                 } else {
  88                                                         return trim($secs[$section*2-1] . $secs[$section*2]);
  89                                                 }
  90                                         }
  91                                 }
  92                                 return $this->mContent;
  93                         }
  94                 }
  95         }
  96
  97         function loadContent( $noredir = false )
  98         {
  99                 global $wgOut, $wgTitle;
 100                 global $oldid, $redirect; # From query
 101
 102                 if ( $this->mContentLoaded ) return;
 103                 $fname = "Article::loadContent";
 104
 105                 # Pre-fill content with error message so that if something
 106                 # fails we'll have something telling us what we intended.
 107
 108                 $t = $wgTitle->getPrefixedText();
 109                 if ( $oldid ) { $t .= ",oldid={$oldid}"; }
 110                 if ( $redirect ) { $t .= ",redirect={$redirect}"; }
 111                 $this->mContent = str_replace( "$1", $t, wfMsg( "missingarticle" ) );
 112
 113                 if ( ! $oldid ) {       # Retrieve current version
 114                         $id = $this->getID();
 115                         if ( 0 == $id ) return;
 116
 117                         $sql = "SELECT " .
 118                           "cur_text,cur_timestamp,cur_user,cur_counter,cur_restrictions,cur_touched " .
 119                           "FROM cur WHERE cur_id={$id}";
 120                         $res = wfQuery( $sql, $fname );
 121                         if ( 0 == wfNumRows( $res ) ) { return; }
 122
 123                         $s = wfFetchObject( $res );
 124
 125                         # If we got a redirect, follow it (unless we've been told
 126                         # not to by either the function parameter or the query
 127
 128                         if ( ( "no" != $redirect ) && ( false == $noredir ) &&
 129                           ( preg_match( "/^#redirect/i", $s->cur_text ) ) ) {
 130                                 if ( preg_match( "/\\[\\[([^\\]\\|]+)[\\]\\|]/",
 131                                   $s->cur_text, $m ) ) {
 132                                         $rt = Title::newFromText( $m[1] );
 133
 134                                         # Gotta hand redirects to special pages differently:
 135                                         # Fill the HTTP response "Location" header and ignore
 136                                         # the rest of the page we're on.
 137
 138                                         if ( $rt->getInterwiki() != "" ) {
 139                                                 $wgOut->redirect( $rt->getFullURL() ) ;
 140                                                 return;
 141                                         }
 142                                         if ( $rt->getNamespace() == Namespace::getSpecial() ) {
 143                                                 $wgOut->redirect( wfLocalUrl(
 144                                                   $rt->getPrefixedURL() ) );
 145                                                 return;
 146                                         }
 147                                         $rid = $rt->getArticleID();
 148                                         if ( 0 != $rid ) {
 149                                                 $sql = "SELECT cur_text,cur_timestamp,cur_user," .
 150                                                   "cur_counter,cur_touched FROM cur WHERE cur_id={$rid}";
 151                                                 $res = wfQuery( $sql, $fname );
 152
 153                                                 if ( 0 != wfNumRows( $res ) ) {
 154                                                         $this->mRedirectedFrom = $wgTitle->getPrefixedText();
 155                                                         $wgTitle = $rt;
 156                                                         $s = wfFetchObject( $res );
 157                                                 }
 158                                         }
 159                                 }
 160                         }
 161                         $this->mContent = $s->cur_text;
 162                         $this->mUser = $s->cur_user;
 163                         $this->mCounter = $s->cur_counter;
 164                         $this->mTimestamp = $s->cur_timestamp;
 165                         $this->mTouched = $s->cur_touched;
 166                         $wgTitle->mRestrictions = explode( ",", trim( $s->cur_restrictions ) );
 167                         $wgTitle->mRestrictionsLoaded = true;
 168                         wfFreeResult( $res );
 169                 } else { # oldid set, retrieve historical version
 170                         $sql = "SELECT old_text,old_timestamp,old_user FROM old " .
 171                           "WHERE old_id={$oldid}";
 172                         $res = wfQuery( $sql, $fname );
 173                         if ( 0 == wfNumRows( $res ) ) { return; }
 174
 175                         $s = wfFetchObject( $res );
 176                         $this->mContent = $s->old_text;
 177                         $this->mUser = $s->old_user;
 178                         $this->mCounter = 0;
 179                         $this->mTimestamp = $s->old_timestamp;
 180                         wfFreeResult( $res );
 181                 }
 182                 $this->mContentLoaded = true;
 183         }
 184
 185         function getID() { global $wgTitle; return $wgTitle->getArticleID(); }
 186
 187         function getCount()
 188         {
 189                 if ( -1 == $this->mCounter ) {
 190                         $id = $this->getID();
 191                         $this->mCounter = wfGetSQL( "cur", "cur_counter", "cur_id={$id}" );
 192                 }
 193                 return $this->mCounter;
 194         }
 195
 196         # Would the given text make this article a "good" article (i.e.,
 197         # suitable for including in the article count)?
 198
 199         function isCountable( $text )
 200         {
 201                 global $wgTitle, $wgUseCommaCount;
 202
 203                 if ( 0 != $wgTitle->getNamespace() ) { return 0; }
 204                 if ( preg_match( "/^#redirect/i", $text ) ) { return 0; }
 205                 $token = ($wgUseCommaCount ? "," : "[[" );
 206                 if ( false === strstr( $text, $token ) ) { return 0; }
 207                 return 1;
 208         }
 209
 210         # Load the field related to the last edit time of the article.
 211         # This isn't necessary for all uses, so it's only done if needed.
 212
 213         /* private */ function loadLastEdit()
 214         {
 215                 global $wgOut;
 216                 if ( -1 != $this->mUser ) return;
 217
 218                 $sql = "SELECT cur_user,cur_user_text,cur_timestamp," .
 219                   "cur_comment,cur_minor_edit FROM cur WHERE " .
 220                   "cur_id=" . $this->getID();
 221                 $res = wfQuery( $sql, "Article::loadLastEdit" );
 222
 223                 if ( wfNumRows( $res ) > 0 ) {
 224                         $s = wfFetchObject( $res );
 225                         $this->mUser = $s->cur_user;
 226                         $this->mUserText = $s->cur_user_text;
 227                         $this->mTimestamp = $s->cur_timestamp;
 228                         $this->mComment = $s->cur_comment;
 229                         $this->mMinorEdit = $s->cur_minor_edit;
 230                 }
 231         }
 232
 233         function getTimestamp()
 234         {
 235                 $this->loadLastEdit();
 236                 return $this->mTimestamp;
 237         }
 238
 239         function getUser()
 240         {
 241                 $this->loadLastEdit();
 242                 return $this->mUser;
 243         }
 244
 245         function getUserText()
 246         {
 247                 $this->loadLastEdit();
 248                 return $this->mUserText;
 249         }
 250
 251         function getComment()
 252         {
 253                 $this->loadLastEdit();
 254                 return $this->mComment;
 255         }
 256
 257         function getMinorEdit()
 258         {
 259                 $this->loadLastEdit();
 260                 return $this->mMinorEdit;
 261         }
 262
 263         # This is the default action of the script: just view the page of
 264         # the given title.
 265
 266         function view()
 267         {
 268                 global $wgUser, $wgOut, $wgTitle, $wgLang;
 269                 global $oldid, $diff; # From query
 270                 global $wgLinkCache;
 271                 wfProfileIn( "Article::view" );
 272
 273                 $wgOut->setArticleFlag( true );
 274                 $wgOut->setRobotpolicy( "index,follow" );
 275
 276                 # If we got diff and oldid in the query, we want to see a
 277                 # diff page instead of the article.
 278
 279                 if ( isset( $diff ) ) {
 280                         $wgOut->setPageTitle( $wgTitle->getPrefixedText() );
 281                         $de = new DifferenceEngine( $oldid, $diff );
 282                         $de->showDiffPage();
 283                         wfProfileOut();
 284                         return;
 285                 }
 286                 $text = $this->getContent(); # May change wgTitle!
 287                 $wgOut->setPageTitle( $wgTitle->getPrefixedText() );
 288                 $wgOut->setHTMLTitle( $wgTitle->getPrefixedText() .
 289                   " - " . wfMsg( "wikititlesuffix" ) );
 290
 291                 # We're looking at an old revision
 292
 293                 if ( $oldid ) {
 294                         $this->setOldSubtitle();
 295                         $wgOut->setRobotpolicy( "noindex,follow" );
 296                 }
 297                 if ( "" != $this->mRedirectedFrom ) {
 298                         $sk = $wgUser->getSkin();
 299                         $redir = $sk->makeKnownLink( $this->mRedirectedFrom, "",
 300                           "redirect=no" );
 301                         $s = str_replace( "$1", $redir, wfMsg( "redirectedfrom" ) );
 302                         $wgOut->setSubtitle( $s );
 303                 }
 304                 $wgOut->checkLastModified( $this->mTouched );
 305                 $this->tryFileCache();
 306                 $wgLinkCache->preFill( $wgTitle );
 307                 $wgOut->addWikiText( $text );
 308
 309                 # If the article we've just shown is in the "Image" namespace,
 310                 # follow it with the history list and link list for the image
 311                 # it describes.
 312
 313                 if ( Namespace::getImage() == $wgTitle->getNamespace() ) {
 314                         $this->imageHistory();
 315                         $this->imageLinks();
 316                 }
 317                 $this->viewUpdates();
 318                 wfProfileOut();
 319         }
 320
 321         # This is the function that gets called for "action=edit".
 322
 323         function edit()
 324         {
 325                 global $wgOut, $wgUser, $wgTitle;
 326                 global $wpTextbox1, $wpSummary, $wpSave, $wpPreview;
 327                 global $wpMinoredit, $wpEdittime, $wpTextbox2;
 328
 329                 $fields = array( "wpTextbox1", "wpSummary", "wpTextbox2" );
 330                 wfCleanFormFields( $fields );
 331
 332                 if ( ! $wgTitle->userCanEdit() ) {
 333                         $this->view();
 334                         return;
 335                 }
 336                 if ( $wgUser->isBlocked() ) {
 337                         $this->blockedIPpage();
 338                         return;
 339                 }
 340                 if ( wfReadOnly() ) {
 341                         if( isset( $wpSave ) or isset( $wpPreview ) ) {
 342                                 $this->editForm( "preview" );
 343                         } else {
 344                                 $wgOut->readOnlyPage();
 345                         }
 346                         return;
 347                 }
 348                 if ( $_SERVER['REQUEST_METHOD'] != "POST" ) unset( $wpSave );
 349                 if ( isset( $wpSave ) ) {
 350                         $this->editForm( "save" );
 351                 } else if ( isset( $wpPreview ) ) {
 352                         $this->editForm( "preview" );
 353                 } else { # First time through
 354                         $this->editForm( "initial" );
 355                 }
 356         }
 357
 358         # Since there is only one text field on the edit form,
 359         # pressing <enter> will cause the form to be submitted, but
 360         # the submit button value won't appear in the query, so we
 361         # Fake it here before going back to edit().  This is kind of
 362         # ugly, but it helps some old URLs to still work.
 363
 364         function submit()
 365         {
 366                 global $wpSave, $wpPreview;
 367                 if ( ! isset( $wpPreview ) ) { $wpSave = 1; }
 368
 369                 $this->edit();
 370         }
 371
 372         # The edit form is self-submitting, so that when things like
 373         # preview and edit conflicts occur, we get the same form back
 374         # with the extra stuff added.  Only when the final submission
 375         # is made and all is well do we actually save and redirect to
 376         # the newly-edited page.
 377
 378         function editForm( $formtype )
 379         {
 380                 global $wgOut, $wgUser, $wgTitle;
 381                 global $wpTextbox1, $wpSummary, $wpWatchthis;
 382                 global $wpSave, $wpPreview;
 383                 global $wpMinoredit, $wpEdittime, $wpTextbox2, $wpSection;
 384                 global $oldid, $redirect, $section;
 385                 global $wgLang;
 386
 387                 if($wpSection) { $section=$wpSection; }
 388
 389                 $sk = $wgUser->getSkin();
 390                 $isConflict = false;
 391                 $wpTextbox1 = rtrim ( $wpTextbox1 ) ; # To avoid text getting longer on each preview
 392
 393                 if(!$wgTitle->getArticleID()) { # new article
 394
 395                         $wgOut->addWikiText(wfmsg("newarticletext"));
 396
 397                 }
 398
 399                 # Attempt submission here.  This will check for edit conflicts,
 400                 # and redundantly check for locked database, blocked IPs, etc.
 401                 # that edit() already checked just in case someone tries to sneak
 402                 # in the back door with a hand-edited submission URL.
 403
 404                 if ( "save" == $formtype ) {
 405                         if ( $wgUser->isBlocked() ) {
 406                                 $this->blockedIPpage();
 407                                 return;
 408                         }
 409                         if ( wfReadOnly() ) {
 410                                 $wgOut->readOnlyPage();
 411                                 return;
 412                         }
 413                         # If article is new, insert it.
 414
 415                         $aid = $wgTitle->getArticleID();
 416                         if ( 0 == $aid ) {
 417                                 # we need to strip Windoze linebreaks because some browsers
 418                                 # append them and the string comparison fails
 419                                 if ( ( "" == $wpTextbox1 ) ||
 420                                   ( wfMsg( "newarticletext" ) == rtrim( preg_replace("/\r/","",$wpTextbox1) ) ) ) {
 421                                         $wgOut->redirect(  wfLocalUrl(
 422                                           $wgTitle->getPrefixedURL() ) );
 423                                         return;
 424                                 }
 425                                 $this->mCountAdjustment = $this->isCountable( $wpTextbox1 );
 426                                 $this->insertNewArticle( $wpTextbox1, $wpSummary, $wpMinoredit, $wpWatchthis );
 427                                 return;
 428                         }
 429                         # Article exists. Check for edit conflict.
 430
 431                         $this->clear(); # Force reload of dates, etc.
 432                         if ( $this->getTimestamp() != $wpEdittime ) { $isConflict = true; }
 433                         $u = $wgUser->getID();
 434
 435                         # Supress edit conflict with self
 436
 437                         if ( ( 0 != $u ) && ( $this->getUser() == $u ) ) {
 438                                 $isConflict = false;
 439                         }
 440                         if ( ! $isConflict ) {
 441                                 # All's well: update the article here
 442                                 $this->updateArticle( $wpTextbox1, $wpSummary, $wpMinoredit, $wpWatchthis, $wpSection );
 443                                 return;
 444                         }
 445                 }
 446                 # First time through: get contents, set time for conflict
 447                 # checking, etc.
 448
 449                 if ( "initial" == $formtype ) {
 450                         $wpEdittime = $this->getTimestamp();
 451                         $wpTextbox1 = $this->getContent(true);
 452                         $wpSummary = "";
 453                 }
 454                 $wgOut->setRobotpolicy( "noindex,nofollow" );
 455                 $wgOut->setArticleFlag( false );
 456
 457                 if ( $isConflict ) {
 458                         $s = str_replace( "$1", $wgTitle->getPrefixedText(),
 459                           wfMsg( "editconflict" ) );
 460                         $wgOut->setPageTitle( $s );
 461                         $wgOut->addHTML( wfMsg( "explainconflict" ) );
 462
 463                         $wpTextbox2 = $wpTextbox1;
 464                         $wpTextbox1 = $this->getContent(true);
 465                         $wpEdittime = $this->getTimestamp();
 466                 } else {
 467                         $s = str_replace( "$1", $wgTitle->getPrefixedText(),
 468                           wfMsg( "editing" ) );
 469                         $wgOut->setPageTitle( $s );
 470                         if ( $oldid ) {
 471                                 $this->setOldSubtitle();
 472                                 $wgOut->addHTML( wfMsg( "editingold" ) );
 473                         }
 474                 }
 475
 476                 if( wfReadOnly() ) {
 477                         $wgOut->addHTML( "<strong>" .
 478                                 wfMsg( "readonlywarning" ) .
 479                                 "</strong>" );
 480                 }
 481                 if( $wgTitle->isProtected() ) {
 482                         $wgOut->addHTML( "<strong>" . wfMsg( "protectedpagewarning" ) .
 483                           "</strong><br />\n" );
 484                 }
 485
 486                 $kblength = (int)(strlen( $wpTextbox1 ) / 1024);
 487                 if( $kblength > 29 ) {
 488                         $wgOut->addHTML( "<strong>" .
 489                                 str_replace( '$1', $kblength , wfMsg( "longpagewarning" ) )
 490                                 . "</strong>" );
 491                 }
 492
 493                 $rows = $wgUser->getOption( "rows" );
 494                 $cols = $wgUser->getOption( "cols" );
 495
 496                 $ew = $wgUser->getOption( "editwidth" );
 497                 if ( $ew ) $ew = " style=\"width:100%\"";
 498                 else $ew = "" ;
 499
 500                 $q = "action=submit";
 501                 if ( "no" == $redirect ) { $q .= "&redirect=no"; }
 502                 $action = wfEscapeHTML( wfLocalUrl( $wgTitle->getPrefixedURL(), $q ) );
 503
 504                 $summary = wfMsg( "summary" );
 505                 $minor = wfMsg( "minoredit" );
 506                 $watchthis = wfMsg ("watchthis");
 507                 $save = wfMsg( "savearticle" );
 508                 $prev = wfMsg( "showpreview" );
 509
 510                 $cancel = $sk->makeKnownLink( $wgTitle->getPrefixedURL(),
 511                   wfMsg( "cancel" ) );
 512                 $edithelp = $sk->makeKnownLink( wfMsg( "edithelppage" ),
 513                   wfMsg( "edithelp" ) );
 514                 $copywarn = str_replace( "$1", $sk->makeKnownLink(
 515                   wfMsg( "copyrightpage" ) ), wfMsg( "copyrightwarning" ) );
 516
 517                 $wpTextbox1 = wfEscapeHTML( $wpTextbox1 );
 518                 $wpTextbox2 = wfEscapeHTML( $wpTextbox2 );
 519                 $wpSummary = wfEscapeHTML( $wpSummary );
 520
 521                 // activate checkboxes if user wants them to be always active
 522                 if (!$wpPreview && $wgUser->getOption("watchdefault")) $wpWatchthis=1;
 523                 if (!$wpPreview && $wgUser->getOption("minordefault")) $wpMinoredit=1;
 524
 525                 // activate checkbox also if user is already watching the page,
 526                 // require wpWatchthis to be unset so that second condition is not
 527                 // checked unnecessarily
 528                 if (!$wpWatchthis && !$wpPreview && $wgTitle->userIsWatching()) $wpWatchthis=1;
 529
 530                 if ( 0 != $wgUser->getID() ) {
 531                         $checkboxhtml=
 532                         "<input tabindex=3 type=checkbox value=1 name='wpMinoredit'".($wpMinoredit?" checked":"").">{$minor}".
 533                         "<input tabindex=4 type=checkbox name='wpWatchthis'".($wpWatchthis?" checked":"").">{$watchthis}<br>";
 534
 535                 } else {
 536                         $checkboxhtml="";
 537                 }
 538
 539
 540                 if ( "preview" == $formtype) {
 541
 542                         $previewhead="<h2>" . wfMsg( "preview" ) . "</h2>\n<p><large><center><font color=\"#cc0000\">" .
 543                         wfMsg( "note" ) . wfMsg( "previewnote" ) . "</font></center></large><P>\n";
 544                         if ( $isConflict ) {
 545                                 $previewhead.="<h2>" . wfMsg( "previewconflict" ) .
 546                                   "</h2>\n";
 547                         }
 548                         $previewtext = wfUnescapeHTML( $wpTextbox1 );
 549
 550                         if($wgUser->getOption("previewontop")) {
 551                                 $wgOut->addHTML($previewhead);
 552                                 $wgOut->addWikiText( $this->preSaveTransform( $previewtext ) ."\n\n");
 553                         }
 554                         $wgOut->addHTML( "<br clear=\"all\" />\n" );
 555                 }
 556                 $wgOut->addHTML( "
 557 <form id=\"editform\" name=\"editform\" method=\"post\" action=\"$action\"
 558 enctype=\"application/x-www-form-urlencoded\">
 559 <textarea tabindex=1 name=\"wpTextbox1\" rows={$rows}
 560 cols={$cols}{$ew} wrap=\"virtual\">" .
 561 $wgLang->recodeForEdit( $wpTextbox1 ) .
 562 "
 563 </textarea><br>
 564 {$summary}: <input tabindex=2 type=text value=\"{$wpSummary}\"
 565 name=\"wpSummary\" maxlength=200 size=60><br>
 566 {$checkboxhtml}
 567 <input tabindex=5 type=submit value=\"{$save}\" name=\"wpSave\">
 568 <input tabindex=6 type=submit value=\"{$prev}\" name=\"wpPreview\">
 569 <em>{$cancel}</em> | <em>{$edithelp}</em>
 570 <br><br>{$copywarn}
 571 <input type=hidden value=\"{$section}\" name=\"wpSection\">
 572 <input type=hidden value=\"{$wpEdittime}\" name=\"wpEdittime\">\n" );
 573
 574                 if ( $isConflict ) {
 575                         $wgOut->addHTML( "<h2>" . wfMsg( "yourdiff" ) . "</h2>\n" );
 576                         DifferenceEngine::showDiff( $wpTextbox2, $wpTextbox1,
 577                           wfMsg( "yourtext" ), wfMsg( "storedversion" ) );
 578
 579                         $wgOut->addHTML( "<h2>" . wfMsg( "yourtext" ) . "</h2>
 580 <textarea tabindex=6 name=\"wpTextbox2\" rows={$rows} cols={$cols} wrap=virtual>"
 581 . $wgLang->recodeForEdit( $wpTextbox2 ) .
 582 "
 583 </textarea>" );
 584                 }
 585                 $wgOut->addHTML( "</form>\n" );
 586                 if($formtype =="preview" && !$wgUser->getOption("previewontop")) {
 587                         $wgOut->addHTML($previewhead);
 588                         $wgOut->addWikiText( $this->preSaveTransform( $previewtext ) );
 589                 }
 590
 591         }
 592
 593         # Theoretically we could defer these whole insert and update
 594         # functions for after display, but that's taking a big leap
 595         # of faith, and we want to be able to report database
 596         # errors at some point.
 597
 598         /* private */ function insertNewArticle( $text, $summary, $isminor, $watchthis )
 599         {
 600                 global $wgOut, $wgUser, $wgTitle, $wgLinkCache;
 601                 $fname = "Article::insertNewArticle";
 602
 603                 $ns = $wgTitle->getNamespace();
 604                 $ttl = $wgTitle->getDBkey();
 605                 $text = $this->preSaveTransform( $text );
 606                 if ( preg_match( "/^#redirect/i", $text ) ) { $redir = 1; }
 607                 else { $redir = 0; }
 608
 609                 $now = wfTimestampNow();
 610                 $won = wfInvertTimestamp( $now );
 611                 wfSeedRandom();
 612                 $rand = mt_rand() / mt_getrandmax();
 613                 $sql = "INSERT INTO cur (cur_namespace,cur_title,cur_text," .
 614                   "cur_comment,cur_user,cur_timestamp,cur_minor_edit,cur_counter," .
 615                   "cur_restrictions,cur_user_text,cur_is_redirect," .
 616                   "cur_is_new,cur_random,cur_touched,inverse_timestamp) VALUES ({$ns},'" . wfStrencode( $ttl ) . "', '" .
 617                   wfStrencode( $text ) . "', '" .
 618                   wfStrencode( $summary ) . "', '" .
 619                   $wgUser->getID() . "', '{$now}', " .
 620                   ( $isminor ? 1 : 0 ) . ", 0, '', '" .
 621                   wfStrencode( $wgUser->getName() ) . "', $redir, 1, $rand, '{$now}', '{$won}')";
 622                 $res = wfQuery( $sql, $fname );
 623
 624                 $newid = wfInsertId();
 625                 $wgTitle->resetArticleID( $newid );
 626
 627                 $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time," .
 628                   "rc_namespace,rc_title,rc_new,rc_minor,rc_cur_id,rc_user," .
 629                   "rc_user_text,rc_comment,rc_this_oldid,rc_last_oldid,rc_bot) VALUES (" .
 630                   "'{$now}','{$now}',{$ns},'" . wfStrencode( $ttl ) . "',1," .
 631                   ( $isminor ? 1 : 0 ) . ",{$newid}," . $wgUser->getID() . ",'" .
 632                   wfStrencode( $wgUser->getName() ) . "','" .
 633                   wfStrencode( $summary ) . "',0,0," .
 634                   ( $wgUser->isBot() ? 1 : 0 ) . ")";
 635                 wfQuery( $sql, $fname );
 636                 if ($watchthis) {
 637                         if(!$wgTitle->userIsWatching()) $this->watch();
 638                 } else {
 639                         if ( $wgTitle->userIsWatching() ) {
 640                                 $this->unwatch();
 641                         }
 642                 }
 643
 644                 $this->showArticle( $text, wfMsg( "newarticle" ) );
 645         }
 646
 647         function updateArticle( $text, $summary, $minor, $watchthis, $section )
 648         {
 649                 global $wgOut, $wgUser, $wgTitle, $wgLinkCache;
 650                 global $wgDBtransactions;
 651                 $fname = "Article::updateArticle";
 652
 653                 // insert updated section into old text if we have only edited part
 654                 // of the article
 655                 if ($section != "") {
 656                         $oldtext=$this->getContent();
 657                         $secs=preg_split("/(^=+.*?=+)/m",$oldtext,-1,PREG_SPLIT_DELIM_CAPTURE);
 658                         $secs[$section*2]=$text."\n\n"; // replace with edited
 659                         if($section) { $secs[$section*2-1]=""; } // erase old headline
 660                         $text=join("",$secs);
 661                 }
 662                 if ( $this->mMinorEdit ) { $me1 = 1; } else { $me1 = 0; }
 663                 if ( $minor ) { $me2 = 1; } else { $me2 = 0; }
 664                 if ( preg_match( "/^(#redirect[^\\n]+)/i", $text, $m ) ) {
 665                         $redir = 1;
 666                         $text = $m[1] . "\n"; # Remove all content but redirect
 667                 }
 668                 else { $redir = 0; }
 669                 $this->loadLastEdit();
 670
 671                 $text = $this->preSaveTransform( $text );
 672
 673                 # Update article, but only if changed.
 674
 675                 if( $wgDBtransactions ) {
 676                         $sql = "BEGIN";
 677                         wfQuery( $sql );
 678                 }
 679                 $oldtext = $this->getContent( true );
 680
 681                 if ( 0 != strcmp( $text, $oldtext ) ) {
 682                         $this->mCountAdjustment = $this->isCountable( $text )
 683                           - $this->isCountable( $oldtext );
 684
 685                         $sql = "INSERT INTO old (old_namespace,old_title,old_text," .
 686                           "old_comment,old_user,old_user_text,old_timestamp," .
 687                           "old_minor_edit,inverse_timestamp) VALUES (" .
 688                           $wgTitle->getNamespace() . ", '" .
 689                           wfStrencode( $wgTitle->getDBkey() ) . "', '" .
 690                           wfStrencode( $oldtext ) . "', '" .
 691                           wfStrencode( $this->getComment() ) . "', " .
 692                           $this->getUser() . ", '" .
 693                           wfStrencode( $this->getUserText() ) . "', '" .
 694                           $this->getTimestamp() . "', " . $me1 . ", '" .
 695                           wfInvertTimestamp( $this->getTimestamp() ) . "')";
 696                         $res = wfQuery( $sql, $fname );
 697                         $oldid = wfInsertID( $res );
 698
 699                         $now = wfTimestampNow();
 700                         $won = wfInvertTimestamp( $now );
 701                         $sql = "UPDATE cur SET cur_text='" . wfStrencode( $text ) .
 702                           "',cur_comment='" .  wfStrencode( $summary ) .
 703                           "',cur_minor_edit={$me2}, cur_user=" . $wgUser->getID() .
 704                           ",cur_timestamp='{$now}',cur_user_text='" .
 705                           wfStrencode( $wgUser->getName() ) .
 706                           "',cur_is_redirect={$redir}, cur_is_new=0, cur_touched='{$now}', inverse_timestamp='{$won}' " .
 707                           "WHERE cur_id=" . $this->getID();
 708                         wfQuery( $sql, $fname );
 709
 710                         $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time," .
 711                           "rc_namespace,rc_title,rc_new,rc_minor,rc_bot,rc_cur_id,rc_user," .
 712                           "rc_user_text,rc_comment,rc_this_oldid,rc_last_oldid) VALUES (" .
 713                           "'{$now}','{$now}'," . $wgTitle->getNamespace() . ",'" .
 714                           wfStrencode( $wgTitle->getDBkey() ) . "',0,{$me2}," .
 715                           ( $wgUser->isBot() ? 1 : 0 ) . "," .
 716                           $this->getID() . "," . $wgUser->getID() . ",'" .
 717                           wfStrencode( $wgUser->getName() ) . "','" .
 718                           wfStrencode( $summary ) . "',0,{$oldid})";
 719                         wfQuery( $sql, $fname );
 720
 721                         $sql = "UPDATE recentchanges SET rc_this_oldid={$oldid} " .
 722                           "WHERE rc_namespace=" . $wgTitle->getNamespace() . " AND " .
 723                           "rc_title='" . wfStrencode( $wgTitle->getDBkey() ) . "' AND " .
 724                           "rc_timestamp='" . $this->getTimestamp() . "'";
 725                         wfQuery( $sql, $fname );
 726
 727                         $sql = "UPDATE recentchanges SET rc_cur_time='{$now}' " .
 728                           "WHERE rc_cur_id=" . $this->getID();
 729                         wfQuery( $sql, $fname );
 730                 }
 731                 if( $wgDBtransactions ) {
 732                         $sql = "COMMIT";
 733                         wfQuery( $sql );
 734                 }
 735
 736                 if ($watchthis) {
 737                         if (!$wgTitle->userIsWatching()) $this->watch();
 738                 } else {
 739                         if ( $wgTitle->userIsWatching() ) {
 740                                 $this->unwatch();
 741                         }
 742                 }
 743
 744                 $this->showArticle( $text, wfMsg( "updated" ) );
 745         }
 746
 747         # After we've either updated or inserted the article, update
 748         # the link tables and redirect to the new page.
 749
 750         function showArticle( $text, $subtitle )
 751         {
 752                 global $wgOut, $wgTitle, $wgUser, $wgLinkCache;
 753
 754                 $wgLinkCache = new LinkCache();
 755                 $wgOut->addWikiText( $text ); # Just to update links
 756
 757                 $this->editUpdates( $text );
 758                 if( preg_match( "/^#redirect/i", $text ) )
 759                         $r = "redirect=no";
 760                 else
 761                         $r = "";
 762                 $wgOut->redirect( wfLocalUrl( $wgTitle->getPrefixedURL(), $r ) );
 763         }
 764
 765         # If the page we've just displayed is in the "Image" namespace,
 766         # we follow it with an upload history of the image and its usage.
 767
 768         function imageHistory()
 769         {
 770                 global $wgUser, $wgOut, $wgLang, $wgTitle;
 771                 $fname = "Article::imageHistory";
 772
 773                 $sql = "SELECT img_size,img_description,img_user," .
 774                   "img_user_text,img_timestamp FROM image WHERE " .
 775                   "img_name='" . wfStrencode( $wgTitle->getDBkey() ) . "'";
 776                 $res = wfQuery( $sql, $fname );
 777
 778                 if ( 0 == wfNumRows( $res ) ) { return; }
 779
 780                 $sk = $wgUser->getSkin();
 781                 $s = $sk->beginImageHistoryList();
 782
 783                 $line = wfFetchObject( $res );
 784                 $s .= $sk->imageHistoryLine( true, $line->img_timestamp,
 785                   $wgTitle->getText(),  $line->img_user,
 786                   $line->img_user_text, $line->img_size, $line->img_description );
 787
 788                 $sql = "SELECT oi_size,oi_description,oi_user," .
 789                   "oi_user_text,oi_timestamp,oi_archive_name FROM oldimage WHERE " .
 790                   "oi_name='" . wfStrencode( $wgTitle->getDBkey() ) . "' " .
 791                   "ORDER BY oi_timestamp DESC";
 792                 $res = wfQuery( $sql, $fname );
 793
 794                 while ( $line = wfFetchObject( $res ) ) {
 795                         $s .= $sk->imageHistoryLine( false, $line->oi_timestamp,
 796                           $line->oi_archive_name, $line->oi_user,
 797                           $line->oi_user_text, $line->oi_size, $line->oi_description );
 798                 }
 799                 $s .= $sk->endImageHistoryList();
 800                 $wgOut->addHTML( $s );
 801         }
 802
 803         function imageLinks()
 804         {
 805                 global $wgUser, $wgOut, $wgTitle;
 806
 807                 $wgOut->addHTML( "<h2>" . wfMsg( "imagelinks" ) . "</h2>\n" );
 808
 809                 $sql = "SELECT il_from FROM imagelinks WHERE il_to='" .
 810                   wfStrencode( $wgTitle->getDBkey() ) . "'";
 811                 $res = wfQuery( $sql, "Article::imageLinks" );
 812
 813                 if ( 0 == wfNumRows( $res ) ) {
 814                         $wgOut->addHtml( "<p>" . wfMsg( "nolinkstoimage" ) . "\n" );
 815                         return;
 816                 }
 817                 $wgOut->addHTML( "<p>" . wfMsg( "linkstoimage" ) .  "\n<ul>" );
 818
 819                 $sk = $wgUser->getSkin();
 820                 while ( $s = wfFetchObject( $res ) ) {
 821                         $name = $s->il_from;
 822                         $link = $sk->makeKnownLink( $name, "" );
 823                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 824                 }
 825                 $wgOut->addHTML( "</ul>\n" );
 826         }
 827
 828         # Add this page to my watchlist
 829
 830         function watch()
 831         {
 832                 global $wgUser, $wgTitle, $wgOut, $wgLang;
 833                 global $wgDeferredUpdateList;
 834
 835                 if ( 0 == $wgUser->getID() ) {
 836                         $wgOut->errorpage( "watchnologin", "watchnologintext" );
 837                         return;
 838                 }
 839                 if ( wfReadOnly() ) {
 840                         $wgOut->readOnlyPage();
 841                         return;
 842                 }
 843                 $wgUser->addWatch( $wgTitle );
 844
 845                 $wgOut->setPagetitle( wfMsg( "addedwatch" ) );
 846                 $wgOut->setRobotpolicy( "noindex,follow" );
 847
 848                 $sk = $wgUser->getSkin() ;
 849                 $link = $sk->makeKnownLink ( $wgTitle->getPrefixedText() ) ;
 850
 851                 $text = str_replace( "$1", $link ,
 852                   wfMsg( "addedwatchtext" ) );
 853                 $wgOut->addHTML( $text );
 854
 855                 $up = new UserUpdate();
 856                 array_push( $wgDeferredUpdateList, $up );
 857
 858                 $wgOut->returnToMain( false );
 859         }
 860
 861         function unwatch()
 862         {
 863                 global $wgUser, $wgTitle, $wgOut, $wgLang;
 864                 global $wgDeferredUpdateList;
 865
 866                 if ( 0 == $wgUser->getID() ) {
 867                         $wgOut->errorpage( "watchnologin", "watchnologintext" );
 868                         return;
 869                 }
 870                 if ( wfReadOnly() ) {
 871                         $wgOut->readOnlyPage();
 872                         return;
 873                 }
 874                 $wgUser->removeWatch( $wgTitle );
 875
 876                 $wgOut->setPagetitle( wfMsg( "removedwatch" ) );
 877                 $wgOut->setRobotpolicy( "noindex,follow" );
 878
 879                 $sk = $wgUser->getSkin() ;
 880                 $link = $sk->makeKnownLink ( $wgTitle->getPrefixedText() ) ;
 881
 882                 $text = str_replace( "$1", $link ,
 883                   wfMsg( "removedwatchtext" ) );
 884                 $wgOut->addHTML( $text );
 885
 886                 $up = new UserUpdate();
 887                 array_push( $wgDeferredUpdateList, $up );
 888
 889                 $wgOut->returnToMain( false );
 890         }
 891
 892         # This shares a lot of issues (and code) with Recent Changes
 893
 894         function history()
 895         {
 896                 global $wgUser, $wgOut, $wgLang, $wgTitle, $offset, $limit;
 897
 898                 # If page hasn't changed, client can cache this
 899
 900                 $wgOut->checkLastModified( $this->getTimestamp() );
 901                 wfProfileIn( "Article::history" );
 902
 903                 $wgOut->setPageTitle( $wgTitle->getPRefixedText() );
 904                 $wgOut->setSubtitle( wfMsg( "revhistory" ) );
 905                 $wgOut->setArticleFlag( false );
 906                 $wgOut->setRobotpolicy( "noindex,nofollow" );
 907
 908                 if( $wgTitle->getArticleID() == 0 ) {
 909                         $wgOut->addHTML( wfMsg( "nohistory" ) );
 910                         wfProfileOut();
 911                         return;
 912                 }
 913
 914                 $offset = (int)$offset;
 915                 $limit = (int)$limit;
 916                 if( $limit == 0 ) $limit = 50;
 917                 $namespace = $wgTitle->getNamespace();
 918                 $title = $wgTitle->getText();
 919                 $sql = "SELECT old_id,old_user," .
 920                   "old_comment,old_user_text,old_timestamp,old_minor_edit ".
 921                   "FROM old USE INDEX (name_title_timestamp) " .
 922                   "WHERE old_namespace={$namespace} AND " .
 923                   "old_title='" . wfStrencode( $wgTitle->getDBkey() ) . "' " .
 924                   "ORDER BY inverse_timestamp LIMIT $offset, $limit";
 925                 $res = wfQuery( $sql, "Article::history" );
 926
 927                 $revs = wfNumRows( $res );
 928                 if( $wgTitle->getArticleID() == 0 ) {
 929                         $wgOut->addHTML( wfMsg( "nohistory" ) );
 930                         wfProfileOut();
 931                         return;
 932                 }
 933
 934                 $sk = $wgUser->getSkin();
 935                 $numbar = wfViewPrevNext(
 936                         $offset, $limit,
 937                         $wgTitle->getPrefixedText(),
 938                         "action=history" );
 939                 $s = $numbar;
 940                 $s .= $sk->beginHistoryList();
 941
 942                 if($offset == 0 )
 943                 $s .= $sk->historyLine( $this->getTimestamp(), $this->getUser(),
 944                   $this->getUserText(), $namespace,
 945                   $title, 0, $this->getComment(),
 946                   ( $this->getMinorEdit() > 0 ) );
 947
 948                 $revs = wfNumRows( $res );
 949                 while ( $line = wfFetchObject( $res ) ) {
 950                         $s .= $sk->historyLine( $line->old_timestamp, $line->old_user,
 951                           $line->old_user_text, $namespace,
 952                           $title, $line->old_id,
 953                           $line->old_comment, ( $line->old_minor_edit > 0 ) );
 954                 }
 955                 $s .= $sk->endHistoryList();
 956                 $s .= $numbar;
 957                 $wgOut->addHTML( $s );
 958                 wfProfileOut();
 959         }
 960
 961         function protect()
 962         {
 963                 global $wgUser, $wgOut, $wgTitle;
 964
 965                 if ( ! $wgUser->isSysop() ) {
 966                         $wgOut->sysopRequired();
 967                         return;
 968                 }
 969                 if ( wfReadOnly() ) {
 970                         $wgOut->readOnlyPage();
 971                         return;
 972                 }
 973                 $id = $wgTitle->getArticleID();
 974                 if ( 0 == $id ) {
 975                         $wgOut->fatalEror( wfMsg( "badarticleerror" ) );
 976                         return;
 977                 }
 978         $sql = "UPDATE cur SET cur_touched='" . wfTimestampNow() . "'," .
 979                   "cur_restrictions='sysop' WHERE cur_id={$id}";
 980                 wfQuery( $sql, "Article::protect" );
 981
 982                 $wgOut->redirect( wfLocalUrl( $wgTitle->getPrefixedURL() ) );
 983         }
 984
 985         function unprotect()
 986         {
 987                 global $wgUser, $wgOut, $wgTitle;
 988
 989                 if ( ! $wgUser->isSysop() ) {
 990                         $wgOut->sysopRequired();
 991                         return;
 992                 }
 993                 if ( wfReadOnly() ) {
 994                         $wgOut->readOnlyPage();
 995                         return;
 996                 }
 997                 $id = $wgTitle->getArticleID();
 998                 if ( 0 == $id ) {
 999                         $wgOut->fatalEror( wfMsg( "badarticleerror" ) );
1000                         return;
1001                 }
1002                 $sql = "UPDATE cur SET cur_touched='" . wfTimestampNow() . "'," .
1003                   "cur_restrictions='' WHERE cur_id={$id}";
1004                 wfQuery( $sql, "Article::unprotect" );
1005
1006                 $wgOut->redirect( wfLocalUrl( $wgTitle->getPrefixedURL() ) );
1007         }
1008
1009         function delete()
1010         {
1011                 global $wgUser, $wgOut, $wgTitle;
1012                 global $wpConfirm, $wpReason, $image, $oldimage;
1013
1014                 # Anybody can delete old revisions of images; only sysops
1015                 # can delete articles and current images
1016
1017                 if ( ( ! $oldimage ) && ( ! $wgUser->isSysop() ) ) {
1018                         $wgOut->sysopRequired();
1019                         return;
1020                 }
1021                 if ( wfReadOnly() ) {
1022                         $wgOut->readOnlyPage();
1023                         return;
1024                 }
1025
1026                 # Better double-check that it hasn't been deleted yet!
1027                 $wgOut->setPagetitle( wfMsg( "confirmdelete" ) );
1028                 if ( $image ) {
1029                         if ( "" == trim( $image ) ) {
1030                                 $wgOut->fatalError( wfMsg( "cannotdelete" ) );
1031                                 return;
1032                         }
1033                         $sub = str_replace( "$1", $image, wfMsg( "deletesub" ) );
1034                 } else {
1035
1036                         if ( ( "" == trim( $wgTitle->getText() ) )
1037                           or ( $wgTitle->getArticleId() == 0 ) ) {
1038                                 $wgOut->fatalError( wfMsg( "cannotdelete" ) );
1039                                 return;
1040                         }
1041                         $sub = str_replace( "$1", $wgTitle->getPrefixedText(),
1042                           wfMsg( "deletesub" ) );
1043
1044                         # determine whether this page has earlier revisions
1045                         # and insert a warning if it does
1046                         # we select the text because it might be useful below
1047                         $sql="SELECT old_text FROM old WHERE old_namespace=0 and old_title='" . wfStrencode($wgTitle->getPrefixedDBkey())."' ORDER BY inverse_timestamp LIMIT 1";
1048                         $res=wfQuery($sql,$fname);
1049                         if( ($old=wfFetchObject($res)) && !$wpConfirm ) {
1050                                 $skin=$wgUser->getSkin();
1051                                 $wgOut->addHTML("<B>".wfMsg("historywarning"));
1052                                 $wgOut->addHTML( $skin->historyLink() ."</B><P>");
1053                         }
1054
1055                         $sql="SELECT cur_text FROM cur WHERE cur_namespace=0 and cur_title='" . wfStrencode($wgTitle->getPrefixedDBkey())."'";
1056                         $res=wfQuery($sql,$fname);
1057                         if( ($s=wfFetchObject($res))) {
1058
1059                                 # if this is a mini-text, we can paste part of it into the deletion reason
1060
1061                                 #if this is empty, an earlier revision may contain "useful" text
1062                                 if($s->cur_text!="") {
1063                                         $text=$s->cur_text;
1064                                 } else {
1065                                         if($old) {
1066                                                 $text=$old->old_text;
1067                                                 $blanked=1;
1068                                         }
1069
1070                                 }
1071
1072                                 $length=strlen($text);
1073
1074                                 # this should not happen, since it is not possible to store an empty, new
1075                                 # page. Let's insert a standard text in case it does, though
1076                                 if($length==0 && !$wpReason) { $wpReason=wfmsg("exblank");}
1077
1078
1079                                 if($length < 500 && !$wpReason) {
1080
1081                                         # comment field=255, let's grep the first 150 to have some user
1082                                         # space left
1083                                         $text=substr($text,0,150);
1084                                         # let's strip out newlines and HTML tags
1085                                         $text=preg_replace("/\"/","'",$text);
1086                                         $text=preg_replace("/\</","&lt;",$text);
1087                                         $text=preg_replace("/\>/","&gt;",$text);
1088                                         $text=preg_replace("/[\n\r]/","",$text);
1089                                         if(!$blanked) {
1090                                                 $wpReason=wfMsg("excontent"). " '".$text;
1091                                         } else {
1092                                                 $wpReason=wfMsg("exbeforeblank") . " '".$text;
1093                                         }
1094                                         if($length>150) { $wpReason .= "..."; } # we've only pasted part of the text
1095                                         $wpReason.="'";
1096                                 }
1097                         }
1098
1099                 }
1100
1101                 # Likewise, deleting old images doesn't require confirmation
1102                 if ( $oldimage || 1 == $wpConfirm ) {
1103                         $this->doDelete();
1104                         return;
1105                 }
1106
1107                 $wgOut->setSubtitle( $sub );
1108                 $wgOut->setRobotpolicy( "noindex,nofollow" );
1109                 $wgOut->addWikiText( wfMsg( "confirmdeletetext" ) );
1110
1111                 $t = $wgTitle->getPrefixedURL();
1112                 $q = "action=delete";
1113
1114                 if ( $image ) {
1115                         $q .= "&image={$image}";
1116                 } else if ( $oldimage ) {
1117                         $q .= "&oldimage={$oldimage}";
1118                 } else {
1119                         $q .= "&title={$t}";
1120                 }
1121                 $formaction = wfEscapeHTML( wfLocalUrl( "", $q ) );
1122                 $confirm = wfMsg( "confirm" );
1123                 $check = wfMsg( "confirmcheck" );
1124                 $delcom = wfMsg( "deletecomment" );
1125
1126                 $wgOut->addHTML( "
1127 <form id=\"deleteconfirm\" method=\"post\" action=\"{$formaction}\">
1128 <table border=0><tr><td align=right>
1129 {$delcom}:</td><td align=left>
1130 <input type=text size=60 name=\"wpReason\" value=\"{$wpReason}\">
1131 </td></tr><tr><td>&nbsp;</td></tr>
1132 <tr><td align=right>
1133 <input type=checkbox name=\"wpConfirm\" value='1'>
1134 </td><td>{$check}</td>
1135 </tr><tr><td>&nbsp;</td><td>
1136 <input type=submit name=\"wpConfirmB\" value=\"{$confirm}\">
1137 </td></tr></table></form>\n" );
1138
1139                 $wgOut->returnToMain( false );
1140         }
1141
1142         function doDelete()
1143         {
1144                 global $wgOut, $wgTitle, $wgUser, $wgLang;
1145                 global $image, $oldimage, $wpReason;
1146                 $fname = "Article::doDelete";
1147
1148                 if ( $image ) {
1149                         $dest = wfImageDir( $image );
1150                         $archive = wfImageDir( $image );
1151                         if ( ! unlink( "{$dest}/{$image}" ) ) {
1152                                 $wgOut->fileDeleteError( "{$dest}/{$image}" );
1153                                 return;
1154                         }
1155                         $sql = "DELETE FROM image WHERE img_name='" .
1156                           wfStrencode( $image ) . "'";
1157                         wfQuery( $sql, $fname );
1158
1159                         $sql = "SELECT oi_archive_name FROM oldimage WHERE oi_name='" .
1160                           wfStrencode( $image ) . "'";
1161                         $res = wfQuery( $sql, $fname );
1162
1163                         while ( $s = wfFetchObject( $res ) ) {
1164                                 $this->doDeleteOldImage( $s->oi_archive_name );
1165                         }
1166                         $sql = "DELETE FROM oldimage WHERE oi_name='" .
1167                           wfStrencode( $image ) . "'";
1168                         wfQuery( $sql, $fname );
1169
1170                         # Image itself is now gone, and database is cleaned.
1171                         # Now we remove the image description page.
1172
1173                         $nt = Title::newFromText( $wgLang->getNsText( Namespace::getImage() ) . ":" . $image );
1174                         $this->doDeleteArticle( $nt );
1175
1176                         $deleted = $image;
1177                 } else if ( $oldimage ) {
1178                         $this->doDeleteOldImage( $oldimage );
1179                         $sql = "DELETE FROM oldimage WHERE oi_archive_name='" .
1180                           wfStrencode( $oldimage ) . "'";
1181                         wfQuery( $sql, $fname );
1182
1183                         $deleted = $oldimage;
1184                 } else {
1185                         $this->doDeleteArticle( $wgTitle );
1186                         $deleted = $wgTitle->getPrefixedText();
1187                 }
1188                 $wgOut->setPagetitle( wfMsg( "actioncomplete" ) );
1189                 $wgOut->setRobotpolicy( "noindex,nofollow" );
1190
1191                 $sk = $wgUser->getSkin();
1192                 $loglink = $sk->makeKnownLink( $wgLang->getNsText(
1193                   Namespace::getWikipedia() ) .
1194                   ":" . wfMsg( "dellogpage" ), wfMsg( "deletionlog" ) );
1195
1196                 $text = str_replace( "$1" , $deleted, wfMsg( "deletedtext" ) );
1197                 $text = str_replace( "$2", $loglink, $text );
1198
1199                 $wgOut->addHTML( "<p>" . $text );
1200                 $wgOut->returnToMain( false );
1201         }
1202
1203         function doDeleteOldImage( $oldimage )
1204         {
1205                 global $wgOut;
1206
1207                 $name = substr( $oldimage, 15 );
1208                 $archive = wfImageArchiveDir( $name );
1209                 if ( ! unlink( "{$archive}/{$oldimage}" ) ) {
1210                         $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
1211                 }
1212         }
1213
1214         function doDeleteArticle( $title )
1215         {
1216                 global $wgUser, $wgOut, $wgLang, $wpReason, $wgTitle, $wgDeferredUpdateList;
1217
1218                 $fname = "Article::doDeleteArticle";
1219                 $ns = $title->getNamespace();
1220                 $t = wfStrencode( $title->getDBkey() );
1221                 $id = $title->getArticleID();
1222
1223                 if ( "" == $t ) {
1224                         $wgOut->fatalError( wfMsg( "cannotdelete" ) );
1225                         return;
1226                 }
1227
1228                 $u = new SiteStatsUpdate( 0, 1, -$this->isCountable( $this->getContent( true ) ) );
1229                 array_push( $wgDeferredUpdateList, $u );
1230
1231                 # Move article and history to the "archive" table
1232                 $sql = "INSERT INTO archive (ar_namespace,ar_title,ar_text," .
1233                   "ar_comment,ar_user,ar_user_text,ar_timestamp,ar_minor_edit," .
1234                   "ar_flags) SELECT cur_namespace,cur_title,cur_text,cur_comment," .
1235                   "cur_user,cur_user_text,cur_timestamp,cur_minor_edit,0 FROM cur " .
1236                   "WHERE cur_namespace={$ns} AND cur_title='{$t}'";
1237                 wfQuery( $sql, $fname );
1238
1239                 $sql = "INSERT INTO archive (ar_namespace,ar_title,ar_text," .
1240                   "ar_comment,ar_user,ar_user_text,ar_timestamp,ar_minor_edit," .
1241                   "ar_flags) SELECT old_namespace,old_title,old_text,old_comment," .
1242                   "old_user,old_user_text,old_timestamp,old_minor_edit,old_flags " .
1243                   "FROM old WHERE old_namespace={$ns} AND old_title='{$t}'";
1244                 wfQuery( $sql, $fname );
1245
1246                 # Now that it's safely backed up, delete it
1247
1248                 $sql = "DELETE FROM cur WHERE cur_namespace={$ns} AND " .
1249                   "cur_title='{$t}'";
1250                 wfQuery( $sql, $fname );
1251
1252                 $sql = "DELETE FROM old WHERE old_namespace={$ns} AND " .
1253                   "old_title='{$t}'";
1254                 wfQuery( $sql, $fname );
1255
1256                 $sql = "DELETE FROM recentchanges WHERE rc_namespace={$ns} AND " .
1257                   "rc_title='{$t}'";
1258         wfQuery( $sql, $fname );
1259
1260                 # Finally, clean up the link tables
1261
1262                 if ( 0 != $id ) {
1263                         $t = wfStrencode( $title->getPrefixedDBkey() );
1264                         $sql = "SELECT l_from FROM links WHERE l_to={$id}";
1265                         $res = wfQuery( $sql, $fname );
1266
1267                         $sql = "INSERT INTO brokenlinks (bl_from,bl_to) VALUES ";
1268             $now = wfTimestampNow();
1269                         $sql2 = "UPDATE cur SET cur_touched='{$now}' WHERE cur_id IN (";
1270                         $first = true;
1271
1272                         while ( $s = wfFetchObject( $res ) ) {
1273                                 $nt = Title::newFromDBkey( $s->l_from );
1274                                 $lid = $nt->getArticleID();
1275
1276                                 if ( ! $first ) { $sql .= ","; $sql2 .= ","; }
1277                                 $first = false;
1278                                 $sql .= "({$lid},'{$t}')";
1279                                 $sql2 .= "{$lid}";
1280                         }
1281                         $sql2 .= ")";
1282                         if ( ! $first ) {
1283                                 wfQuery( $sql, $fname );
1284                                 wfQuery( $sql2, $fname );
1285                         }
1286                         wfFreeResult( $res );
1287
1288                         $sql = "DELETE FROM links WHERE l_to={$id}";
1289                         wfQuery( $sql, $fname );
1290
1291                         $sql = "DELETE FROM links WHERE l_from='{$t}'";
1292                         wfQuery( $sql, $fname );
1293
1294                         $sql = "DELETE FROM imagelinks WHERE il_from='{$t}'";
1295                         wfQuery( $sql, $fname );
1296
1297                         $sql = "DELETE FROM brokenlinks WHERE bl_from={$id}";
1298                         wfQuery( $sql, $fname );
1299                 }
1300
1301                 $log = new LogPage( wfMsg( "dellogpage" ), wfMsg( "dellogpagetext" ) );
1302                 $art = $title->getPrefixedText();
1303                 $wpReason = wfCleanQueryVar( $wpReason );
1304                 $log->addEntry( str_replace( "$1", $art, wfMsg( "deletedarticle" ) ), $wpReason );
1305
1306                 # Clear the cached article id so the interface doesn't act like we exist
1307                 $wgTitle->resetArticleID( 0 );
1308                 $wgTitle->mArticleID = 0;
1309         }
1310
1311         function revert()
1312         {
1313                 global $wgOut;
1314                 global $oldimage;
1315
1316                 if ( strlen( $oldimage ) < 16 ) {
1317                         $wgOut->unexpectedValueError( "oldimage", $oldimage );
1318                         return;
1319                 }
1320                 if ( wfReadOnly() ) {
1321                         $wgOut->readOnlyPage();
1322                         return;
1323                 }
1324                 $name = substr( $oldimage, 15 );
1325
1326                 $dest = wfImageDir( $name );
1327                 $archive = wfImageArchiveDir( $name );
1328                 $curfile = "{$dest}/{$name}";
1329
1330                 if ( ! is_file( $curfile ) ) {
1331                         $wgOut->fileNotFoundError( $curfile );
1332                         return;
1333                 }
1334                 $oldver = wfTimestampNow() . "!{$name}";
1335                 $size = wfGetSQL( "oldimage", "oi_size", "oi_archive_name='" .
1336                   wfStrencode( $oldimage ) . "'" );
1337
1338                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
1339                         $wgOut->fileRenameError( $curfile, "${archive}/{$oldver}" );
1340                         return;
1341                 }
1342                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
1343                         $wgOut->fileCopyError( "${archive}/{$oldimage}", $curfile );
1344                 }
1345                 wfRecordUpload( $name, $oldver, $size, wfMsg( "reverted" ) );
1346
1347                 $wgOut->setPagetitle( wfMsg( "actioncomplete" ) );
1348                 $wgOut->setRobotpolicy( "noindex,nofollow" );
1349                 $wgOut->addHTML( wfMsg( "imagereverted" ) );
1350                 $wgOut->returnToMain( false );
1351         }
1352
1353         function rollback()
1354         {
1355                 global $wgUser, $wgTitle, $wgLang, $wgOut, $from;
1356
1357                 if ( ! $wgUser->isSysop() ) {
1358                         $wgOut->sysopRequired();
1359                         return;
1360                 }
1361
1362                 # Replace all this user's current edits with the next one down
1363                 $tt = wfStrencode( $wgTitle->getDBKey() );
1364                 $n = $wgTitle->getNamespace();
1365
1366                 # Get the last editor
1367                 $sql = "SELECT cur_id,cur_user,cur_user_text,cur_comment FROM cur WHERE cur_title='{$tt}' AND cur_namespace={$n}";
1368                 $res = wfQuery( $sql );
1369                 if( ($x = wfNumRows( $res )) != 1 ) {
1370                         # Something wrong
1371                         $wgOut->addHTML( wfMsg( "notanarticle" ) );
1372                         return;
1373                 }
1374                 $s = wfFetchObject( $res );
1375                 $ut = wfStrencode( $s->cur_user_text );
1376                 $uid = $s->cur_user;
1377                 $pid = $s->cur_id;
1378
1379                 $from = str_replace( '_', ' ', wfCleanQueryVar( $from ) );
1380                 if( $from != $s->cur_user_text ) {
1381                         $wgOut->setPageTitle(wfmsg("rollbackfailed"));
1382                         $wgOut->addWikiText( wfMsg( "alreadyrolled",
1383                                 htmlspecialchars( $wgTitle->getPrefixedText()),
1384                                 htmlspecialchars( $from ),
1385                                 htmlspecialchars( $s->cur_user_text ) ) );
1386                         if($s->cur_comment != "") {
1387                                 $wgOut->addHTML(
1388                                         wfMsg("editcomment",
1389                                         htmlspecialchars( $s->cur_comment ) ) );
1390                                 }
1391                         return;
1392                 }
1393
1394                 # Get the last edit not by this guy
1395                 $sql = "SELECT old_text,old_user,old_user_text
1396                 FROM old USE INDEX (name_title_timestamp)
1397                 WHERE old_namespace={$n} AND old_title='{$tt}'
1398                 AND (old_user <> {$uid} OR old_user_text <> '{$ut}')
1399                 ORDER BY inverse_timestamp LIMIT 1";
1400                 $res = wfQuery( $sql );
1401                 if( wfNumRows( $res ) != 1 ) {
1402                         # Something wrong
1403                         $wgOut->setPageTitle(wfMsg("rollbackfailed"));
1404                         $wgOut->addHTML( wfMsg( "cantrollback" ) );
1405                         return;
1406                 }
1407                 $s = wfFetchObject( $res );
1408
1409                 # Save it!
1410                 $newcomment = str_replace( "$1", $s->old_user_text, wfMsg( "revertpage" ) );
1411                 $wgOut->setPagetitle( wfMsg( "actioncomplete" ) );
1412                 $wgOut->setRobotpolicy( "noindex,nofollow" );
1413                 $wgOut->addHTML( "<h2>" . $newcomment . "</h2>\n<hr>\n" );
1414                 $this->updateArticle( $s->old_text, $newcomment, 1, $wgTitle->userIsWatching() );
1415
1416                 $wgOut->returnToMain( false );
1417         }
1418
1419
1420         # Do standard deferred updates after page view
1421
1422         /* private */ function viewUpdates()
1423         {
1424                 global $wgDeferredUpdateList, $wgTitle;
1425
1426                 if ( 0 != $this->getID() ) {
1427                         $u = new ViewCountUpdate( $this->getID() );
1428                         array_push( $wgDeferredUpdateList, $u );
1429                         $u = new SiteStatsUpdate( 1, 0, 0 );
1430                         array_push( $wgDeferredUpdateList, $u );
1431
1432                         $u = new UserTalkUpdate( 0, $wgTitle->getNamespace(),
1433                           $wgTitle->getDBkey() );
1434                         array_push( $wgDeferredUpdateList, $u );
1435                 }
1436         }
1437
1438         # Do standard deferred updates after page edit.
1439         # Every 1000th edit, prune the recent changes table.
1440
1441         /* private */ function editUpdates( $text )
1442         {
1443                 global $wgDeferredUpdateList, $wgTitle;
1444
1445                 wfSeedRandom();
1446                 if ( 0 == mt_rand( 0, 999 ) ) {
1447                         $cutoff = wfUnix2Timestamp( time() - ( 7 * 86400 ) );
1448                         $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$cutoff}'";
1449                         wfQuery( $sql );
1450                 }
1451                 $id = $this->getID();
1452                 $title = $wgTitle->getPrefixedDBkey();
1453                 $adj = $this->mCountAdjustment;
1454
1455                 if ( 0 != $id ) {
1456                         $u = new LinksUpdate( $id, $title );
1457                         array_push( $wgDeferredUpdateList, $u );
1458                         $u = new SiteStatsUpdate( 0, 1, $adj );
1459                         array_push( $wgDeferredUpdateList, $u );
1460                         $u = new SearchUpdate( $id, $title, $text );
1461                         array_push( $wgDeferredUpdateList, $u );
1462
1463                         $u = new UserTalkUpdate( 1, $wgTitle->getNamespace(),
1464                           $wgTitle->getDBkey() );
1465                         array_push( $wgDeferredUpdateList, $u );
1466                 }
1467         }
1468
1469         /* private */ function setOldSubtitle()
1470         {
1471                 global $wgLang, $wgOut;
1472
1473                 $td = $wgLang->timeanddate( $this->mTimestamp, true );
1474                 $r = str_replace( "$1", "{$td}", wfMsg( "revisionasof" ) );
1475                 $wgOut->setSubtitle( "({$r})" );
1476         }
1477
1478         function blockedIPpage()
1479         {
1480                 global $wgOut, $wgUser, $wgLang;
1481
1482                 $wgOut->setPageTitle( wfMsg( "blockedtitle" ) );
1483                 $wgOut->setRobotpolicy( "noindex,nofollow" );
1484                 $wgOut->setArticleFlag( false );
1485
1486                 $id = $wgUser->blockedBy();
1487                 $reason = $wgUser->blockedFor();
1488
1489                 $name = User::whoIs( $id );
1490                 $link = "[[" . $wgLang->getNsText( Namespace::getUser() ) .
1491                   ":{$name}|{$name}]]";
1492
1493                 $text = str_replace( "$1", $link, wfMsg( "blockedtext" ) );
1494                 $text = str_replace( "$2", $reason, $text );
1495                 $wgOut->addWikiText( $text );
1496                 $wgOut->returnToMain( false );
1497         }
1498
1499         # This function is called right before saving the wikitext,
1500         # so we can do things like signatures and links-in-context.
1501
1502         function preSaveTransform( $text )
1503         {
1504                 $s = "";
1505                 while ( "" != $text ) {
1506                         $p = preg_split( "/<\\s*nowiki\\s*>/i", $text, 2 );
1507                         $s .= $this->pstPass2( $p[0] );
1508
1509                         if ( ( count( $p ) < 2 ) || ( "" == $p[1] ) ) { $text = ""; }
1510                         else {
1511                                 $q = preg_split( "/<\\/\\s*nowiki\\s*>/i", $p[1], 2 );
1512                                 $s .= "<nowiki>{$q[0]}</nowiki>";
1513                                 $text = $q[1];
1514                         }
1515                 }
1516                 return rtrim( $s );
1517         }
1518
1519         /* private */ function pstPass2( $text )
1520         {
1521                 global $wgUser, $wgLang, $wgTitle, $wgLocaltimezone;
1522
1523                 # Signatures
1524                 #
1525                 $n = $wgUser->getName();
1526                 $k = $wgUser->getOption( "nickname" );
1527                 if ( "" == $k ) { $k = $n; }
1528                 if(isset($wgLocaltimezone)) {
1529                         $oldtz = getenv("TZ"); putenv("TZ=$wgLocaltimezone");
1530                 }
1531                 /* Note: this is an ugly timezone hack for the European wikis */
1532                 $d = $wgLang->timeanddate( date( "YmdHis" ), false ) .
1533                   " (" . date( "T" ) . ")";
1534                 if(isset($wgLocaltimezone)) putenv("TZ=$oldtz");
1535
1536                 $text = preg_replace( "/~~~~/", "[[" . $wgLang->getNsText(
1537                   Namespace::getUser() ) . ":$n|$k]] $d", $text );
1538                 $text = preg_replace( "/~~~/", "[[" . $wgLang->getNsText(
1539                   Namespace::getUser() ) . ":$n|$k]]", $text );
1540
1541                 # Context links: [[|name]] and [[name (context)|]]
1542                 #
1543                 $tc = "[&;%\\-,.\\(\\)' _0-9A-Za-z\\/:\\x80-\\xff]";
1544                 $np = "[&;%\\-,.' _0-9A-Za-z\\/:\\x80-\\xff]"; # No parens
1545                 $conpat = "/^({$np}+) \\(({$tc}+)\\)$/";
1546
1547                 $p1 = "/\[\[({$np}+) \\(({$np}+)\\)\\|]]/";             # [[page (context)|]]
1548                 $p2 = "/\[\[\\|({$tc}+)]]/";                                    # [[|page]]
1549                 $p3 = "/\[\[([A-Za-z _]+):({$np}+)\\|]]/";              # [[namespace:page|]]
1550                 $p4 = "/\[\[([A-Aa-z _]+):({$np}+) \\(({$np}+)\\)\\|]]/";
1551                                                                                                                 # [[ns:page (cont)|]]
1552                 $context = "";
1553                 $t = $wgTitle->getText();
1554                 if ( preg_match( $conpat, $t, $m ) ) {
1555                         $context = $m[2];
1556                 }
1557                 $text = preg_replace( $p4, "[[\\1:\\2 (\\3)|\\2]]", $text );
1558                 $text = preg_replace( $p1, "[[\\1 (\\2)|\\1]]", $text );
1559                 $text = preg_replace( $p3, "[[\\1:\\2|\\2]]", $text );
1560
1561                 if ( "" == $context ) {
1562                         $text = preg_replace( $p2, "[[\\1]]", $text );
1563                 } else {
1564                         $text = preg_replace( $p2, "[[\\1 ({$context})|\\1]]", $text );
1565                 }
1566                 # Replace local image links with new [[image:]] style
1567
1568                 $text = preg_replace(
1569                   "/(^|[^[])http:\/\/(www.|)wikipedia.com\/upload\/" .
1570                   "([a-zA-Z0-9_:.~\%\-]+)\.(png|PNG|jpg|JPG|jpeg|JPEG|gif|GIF)/",
1571                   "\\1[[image:\\3.\\4]]", $text );
1572                 $text = preg_replace(
1573                   "/(^|[^[])http:\/\/(www.|)wikipedia.com\/images\/uploads\/" .
1574                   "([a-zA-Z0-9_:.~\%\-]+)\.(png|PNG|jpg|JPG|jpeg|JPEG|gif|GIF)/",
1575                   "\\1[[image:\\3.\\4]]", $text );
1576
1577                 return $text;
1578         }
1579
1580
1581         /* Caching functions */
1582
1583     function tryFileCache() {
1584                 if($this->isFileCacheable()) {
1585                         if($this->isFileCacheGood()) {
1586                 wfDebug( " tryFileCache() - about to load\n" );
1587                                 $this->loadFromFileCache();
1588                                 exit;
1589                         } else {
1590                     wfDebug( " tryFileCache() - starting buffer\n" );
1591                         ob_start( array(&$this, 'saveToFileCache' ) );
1592                         }
1593                 } else {
1594                         wfDebug( " tryFileCache() - not cacheable\n" );
1595                 }
1596         }
1597
1598         function isFileCacheable() {
1599                 global $wgUser, $wgTitle, $wgUseFileCache, $wgShowIPinHeader;
1600                 global $action, $oldid, $diff, $redirect, $printable;
1601                 return $wgUseFileCache
1602                         and (!$wgShowIPinHeader)
1603                         and ($wgUser->getId() == 0)
1604                         and (!$wgUser->getNewtalk())
1605                         and ($wgTitle->getNamespace != Namespace::getSpecial())
1606                         and ($action == "view")
1607                         and (!isset($oldid))
1608                         and (!isset($diff))
1609                         and (!isset($redirect))
1610                         and (!isset($printable))
1611                         and (!$this->mRedirectedFrom);
1612
1613         }
1614
1615         function fileCacheName() {
1616                 global $wgTitle, $wgFileCacheDirectory, $wgLang;
1617                 if( !$this->mFileCache ) {
1618                         $hash = md5( $key = $wgTitle->getDbkey() );
1619                         if( $wgTitle->getNamespace() )
1620                                 $key = $wgLang->getNsText( $wgTitle->getNamespace() ) . ":" . $key;
1621                         $key = str_replace( ".", "%2E", urlencode( $key ) );
1622                         $hash1 = substr( $hash, 0, 1 );
1623                         $hash2 = substr( $hash, 0, 2 );
1624                         $this->mFileCache = "{$wgFileCacheDirectory}/{$hash1}/{$hash2}/{$key}.html";
1625                         wfDebug( " fileCacheName() - {$this->mFileCache}\n" );
1626                 }
1627                 return $this->mFileCache;
1628         }
1629
1630         function isFileCacheGood() {
1631                 global $wgUser, $wgCacheEpoch;
1632                 if(!file_exists( $fn = $this->fileCacheName() ) ) return false;
1633                 $cachetime = wfUnix2Timestamp( filemtime( $fn ) );
1634                 $good = ( $this->mTouched <= $cachetime ) &&
1635                         ($wgCacheEpoch <= $cachetime );
1636         wfDebug(" isFileCacheGood() - cachetime $cachetime, touched {$this->mTouched} epoch {$wgCacheEpoch}, good $good\n");
1637                 return $good;
1638         }
1639
1640         function loadFromFileCache() {
1641                 global $wgUseGzip;
1642                 wfDebug(" loadFromFileCache()\n");
1643                 $filename=$this->fileCacheName();
1644                 $filenamegz = "{$filename}.gz";
1645                 if( $wgUseGzip
1646                         && wfClientAcceptsGzip()
1647                         && file_exists( $filenamegz)
1648                         && ( filemtime( $filenamegz ) >= filemtime( $filename ) ) ) {
1649                         wfDebug("  sending gzip\n");
1650                         header( "Content-Encoding: gzip" );
1651                         header( "Vary: Accept-Encoding" );
1652                         $filename = $filenamegz;
1653                 }
1654                 readfile( $filename );
1655         }
1656
1657         function saveToFileCache( $text ) {
1658                 global $wgUseGzip, $wgCompressByDefault;
1659
1660         wfDebug(" saveToFileCache()\n");
1661                 $filename=$this->fileCacheName();
1662                 $mydir2=substr($filename,0,strrpos($filename,"/")); # subdirectory level 2
1663                 $mydir1=substr($mydir2,0,strrpos($mydir2,"/")); # subdirectory level 1
1664                 if(!file_exists($mydir1)) { mkdir($mydir1,0777); } # create if necessary
1665                 if(!file_exists($mydir2)) { mkdir($mydir2,0777); }
1666                 $f = fopen( $filename, "w" );
1667                 if($f) {
1668                         $now = wfTimestampNow();
1669                         fwrite( $f, str_replace( "</html>",
1670                                 "<!-- Cached $now -->\n</html>",
1671                                 $text ) );
1672                         fclose( $f );
1673                         if( $wgUseGzip and $wgCompressByDefault ) {
1674                                 $start = microtime();
1675                                 wfDebug("  saving gzip\n");
1676                                 $gzout = gzencode( str_replace( "</html>",
1677                                                 "<!-- Cached/compressed $now -->\n</html>",
1678                                                 $text ) );
1679                                 if( $gzout === false ) {
1680                                         wfDebug("  failed to gzip compress, sending plaintext\n");
1681                                         return $text;
1682                                 }
1683                                 if( $f = fopen( "{$filename}.gz", "w" ) ) {
1684                                         fwrite( $f, $gzout );
1685                                         fclose( $f );
1686                                         $end = microtime();
1687
1688                                         list($usec1, $sec1) = explode(" ",$start);
1689                                         list($usec2, $sec2) = explode(" ",$end);
1690                                         $interval = ((float)$usec2 + (float)$sec2) -
1691                                                                 ((float)$usec1 + (float)$sec1);
1692                                         wfDebug("  saved gzip in $interval\n");
1693                                 } else {
1694                                         wfDebug("  failed to write gzip, still sending\n" );
1695                                 }
1696                                 if(wfClientAcceptsGzip()) {
1697                                         header( "Content-Encoding: gzip" );
1698                                         header( "Vary: Accept-Encoding" );
1699                                         return $gzout;
1700                                 }
1701                         }
1702                 }
1703                 return $text;
1704         }
1705
1706 }
1707
1708 ?>