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