includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( !defined( 'MEDIAWIKI' ) ) {
   7         die( 1 );
   8 }
   9
  10 /**
  11  * The main skin class that provide methods and properties for all other skins.
  12  * This base class is also the "Standard" skin.
  13  *
  14  * See docs/skin.txt for more information.
  15  *
  16  * @ingroup Skins
  17  */
  18 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  23         // How many search boxes have we made?  Avoid duplicate id's.
  24         protected $searchboxes = '';
  25         /**#@-*/
  26         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  27         protected $skinname = 'standard';
  28         // @todo Fixme: should be protected :-\
  29         var $mTitle = null;
  30
  31         /** Constructor, call parent constructor */
  32         function __construct() {
  33                 parent::__construct();
  34         }
  35
  36         /**
  37          * Fetch the set of available skins.
  38          * @return array of strings
  39          */
  40         static function getSkinNames() {
  41                 global $wgValidSkinNames;
  42                 static $skinsInitialised = false;
  43                 if ( !$skinsInitialised ) {
  44                         # Get a list of available skins
  45                         # Build using the regular expression '^(.*).php$'
  46                         # Array keys are all lower case, array value keep the case used by filename
  47                         #
  48                         wfProfileIn( __METHOD__ . '-init' );
  49                         global $wgStyleDirectory;
  50                         $skinDir = dir( $wgStyleDirectory );
  51
  52                         # while code from www.php.net
  53                         while( false !== ( $file = $skinDir->read() ) ) {
  54                                 // Skip non-PHP files, hidden files, and '.dep' includes
  55                                 $matches = array();
  56                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  57                                         $aSkin = $matches[1];
  58                                         $wgValidSkinNames[strtolower( $aSkin )] = $aSkin;
  59                                 }
  60                         }
  61                         $skinDir->close();
  62                         $skinsInitialised = true;
  63                         wfProfileOut( __METHOD__ . '-init' );
  64                 }
  65                 return $wgValidSkinNames;
  66         }
  67
  68         /**
  69          * Fetch the list of usable skins in regards to $wgSkipSkins.
  70          * Useful for Special:Preferences and other places where you
  71          * only want to show skins users _can_ use.
  72          * @return array of strings
  73          */
  74         public static function getUsableSkins() {
  75                 global $wgSkipSkins;
  76                 $usableSkins = self::getSkinNames();
  77                 foreach ( $wgSkipSkins as $skip ) {
  78                         unset( $usableSkins[$skip] );
  79                 }
  80                 return $usableSkins;
  81         }
  82
  83         /**
  84          * Normalize a skin preference value to a form that can be loaded.
  85          * If a skin can't be found, it will fall back to the configured
  86          * default (or the old 'Classic' skin if that's broken).
  87          * @param $key String: 'monobook', 'standard', etc.
  88          * @return string
  89          */
  90         static function normalizeKey( $key ) {
  91                 global $wgDefaultSkin;
  92                 $skinNames = Skin::getSkinNames();
  93
  94                 if( $key == '' ) {
  95                         // Don't return the default immediately;
  96                         // in a misconfiguration we need to fall back.
  97                         $key = $wgDefaultSkin;
  98                 }
  99
 100                 if( isset( $skinNames[$key] ) ) {
 101                         return $key;
 102                 }
 103
 104                 // Older versions of the software used a numeric setting
 105                 // in the user preferences.
 106                 $fallback = array(
 107                         0 => $wgDefaultSkin,
 108                         1 => 'nostalgia',
 109                         2 => 'cologneblue'
 110                 );
 111
 112                 if( isset( $fallback[$key] ) ) {
 113                         $key = $fallback[$key];
 114                 }
 115
 116                 if( isset( $skinNames[$key] ) ) {
 117                         return $key;
 118                 } else {
 119                         return 'monobook';
 120                 }
 121         }
 122
 123         /**
 124          * Factory method for loading a skin of a given type
 125          * @param $key String: 'monobook', 'standard', etc.
 126          * @return Skin
 127          */
 128         static function &newFromKey( $key ) {
 129                 global $wgStyleDirectory;
 130
 131                 $key = Skin::normalizeKey( $key );
 132
 133                 $skinNames = Skin::getSkinNames();
 134                 $skinName = $skinNames[$key];
 135                 $className = 'Skin' . ucfirst( $key );
 136
 137                 # Grab the skin class and initialise it.
 138                 if ( !class_exists( $className ) ) {
 139                         // Preload base classes to work around APC/PHP5 bug
 140                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 141                         if( file_exists( $deps ) ) {
 142                                 include_once( $deps );
 143                         }
 144                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 145
 146                         # Check if we got if not failback to default skin
 147                         if( !class_exists( $className ) ) {
 148                                 # DO NOT die if the class isn't found. This breaks maintenance
 149                                 # scripts and can cause a user account to be unrecoverable
 150                                 # except by SQL manipulation if a previously valid skin name
 151                                 # is no longer valid.
 152                                 wfDebug( "Skin class does not exist: $className\n" );
 153                                 $className = 'SkinMonobook';
 154                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 155                         }
 156                 }
 157                 $skin = new $className;
 158                 return $skin;
 159         }
 160
 161         /** @return string path to the skin stylesheet */
 162         function getStylesheet() {
 163                 return 'common/wikistandard.css';
 164         }
 165
 166         /** @return string skin name */
 167         public function getSkinName() {
 168                 return $this->skinname;
 169         }
 170
 171         function qbSetting() {
 172                 global $wgOut, $wgUser;
 173
 174                 if ( $wgOut->isQuickbarSuppressed() ) {
 175                         return 0;
 176                 }
 177                 $q = $wgUser->getOption( 'quickbar', 0 );
 178                 return $q;
 179         }
 180
 181         function initPage( OutputPage $out ) {
 182                 global $wgFavicon, $wgAppleTouchIcon;
 183
 184                 wfProfileIn( __METHOD__ );
 185
 186                 # Generally the order of the favicon and apple-touch-icon links
 187                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 188                 # uses whichever one appears later in the HTML source. Make sure
 189                 # apple-touch-icon is specified first to avoid this.
 190                 if( false !== $wgAppleTouchIcon ) {
 191                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 192                 }
 193
 194                 if( false !== $wgFavicon ) {
 195                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 196                 }
 197
 198                 # OpenSearch description link
 199                 $out->addLink( array(
 200                         'rel' => 'search',
 201                         'type' => 'application/opensearchdescription+xml',
 202                         'href' => wfScript( 'opensearch_desc' ),
 203                         'title' => wfMsgForContent( 'opensearch-desc' ),
 204                 ));
 205
 206                 $this->addMetadataLinks( $out );
 207
 208                 $this->mRevisionId = $out->mRevisionId;
 209
 210                 $this->preloadExistence();
 211
 212                 wfProfileOut( __METHOD__ );
 213         }
 214
 215         /**
 216          * Preload the existence of three commonly-requested pages in a single query
 217          */
 218         function preloadExistence() {
 219                 global $wgUser;
 220
 221                 // User/talk link
 222                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 223
 224                 // Other tab link
 225                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 226                         // nothing
 227                 } elseif ( $this->mTitle->isTalkPage() ) {
 228                         $titles[] = $this->mTitle->getSubjectPage();
 229                 } else {
 230                         $titles[] = $this->mTitle->getTalkPage();
 231                 }
 232
 233                 $lb = new LinkBatch( $titles );
 234                 $lb->execute();
 235         }
 236
 237         /**
 238          * Adds metadata links (Creative Commons/Dublin Core/copyright) to the HTML
 239          * output.
 240          * @param $out Object: instance of OutputPage
 241          */
 242         function addMetadataLinks( OutputPage $out ) {
 243                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 244                 global $wgRightsPage, $wgRightsUrl;
 245
 246                 if( $out->isArticleRelated() ) {
 247                         # note: buggy CC software only reads first "meta" link
 248                         if( $wgEnableCreativeCommonsRdf ) {
 249                                 $out->addMetadataLink( array(
 250                                         'title' => 'Creative Commons',
 251                                         'type' => 'application/rdf+xml',
 252                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 253                                 );
 254                         }
 255                         if( $wgEnableDublinCoreRdf ) {
 256                                 $out->addMetadataLink( array(
 257                                         'title' => 'Dublin Core',
 258                                         'type' => 'application/rdf+xml',
 259                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 260                                 );
 261                         }
 262                 }
 263                 $copyright = '';
 264                 if( $wgRightsPage ) {
 265                         $copy = Title::newFromText( $wgRightsPage );
 266                         if( $copy ) {
 267                                 $copyright = $copy->getLocalURL();
 268                         }
 269                 }
 270                 if( !$copyright && $wgRightsUrl ) {
 271                         $copyright = $wgRightsUrl;
 272                 }
 273                 if( $copyright ) {
 274                         $out->addLink( array(
 275                                 'rel' => 'copyright',
 276                                 'href' => $copyright )
 277                         );
 278                 }
 279         }
 280
 281         /**
 282          * Set some local variables
 283          */
 284         protected function setMembers() {
 285                 global $wgUser;
 286                 $this->mUser = $wgUser;
 287                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 288                 $this->usercss = false;
 289         }
 290
 291         /**
 292          * Set the title
 293          * @param Title $t The title to use
 294          */
 295         public function setTitle( $t ) {
 296                 $this->mTitle = $t;
 297         }
 298
 299         /** Get the title */
 300         public function getTitle() {
 301                 return $this->mTitle;
 302         }
 303
 304         /**
 305          * Outputs the HTML generated by other functions.
 306          * @param $out Object: instance of OutputPage
 307          */
 308         function outputPage( OutputPage $out ) {
 309                 global $wgDebugComments;
 310                 wfProfileIn( __METHOD__ );
 311
 312                 $this->setMembers();
 313                 $this->initPage( $out );
 314
 315                 // See self::afterContentHook() for documentation
 316                 $afterContent = $this->afterContentHook();
 317
 318                 $out->out( $out->headElement( $this ) );
 319
 320                 if ( $wgDebugComments ) {
 321                         $out->out( "<!-- Wiki debugging output:\n" .
 322                           $out->mDebugtext . "-->\n" );
 323                 }
 324
 325                 $out->out( $this->beforeContent() );
 326
 327                 $out->out( $out->mBodytext . "\n" );
 328
 329                 $out->out( $this->afterContent() );
 330
 331                 $out->out( $afterContent );
 332
 333                 $out->out( $this->bottomScripts() );
 334
 335                 $out->out( wfReportTime() );
 336
 337                 $out->out( "\n</body></html>" );
 338                 wfProfileOut( __METHOD__ );
 339         }
 340
 341         static function makeVariablesScript( $data ) {
 342                 if( $data ) {
 343                         $r = array();
 344                         foreach ( $data as $name => $value ) {
 345                                 $encValue = Xml::encodeJsVar( $value );
 346                                 $r[] = "$name=$encValue";
 347                         }
 348                         $js = 'var ' . implode( ",\n", $r ) . ';';
 349                         return Html::inlineScript( "\n$js\n" );
 350                 } else {
 351                         return '';
 352                 }
 353         }
 354
 355         /**
 356          * Make a <script> tag containing global variables
 357          * @param $skinName string Name of the skin
 358          * The odd calling convention is for backwards compatibility
 359          * @TODO @FIXME Make this not depend on $wgTitle!
 360          */
 361         static function makeGlobalVariablesScript( $skinName ) {
 362                 if ( is_array( $skinName ) ) {
 363                         # Weird back-compat stuff.
 364                         $skinName = $skinName['skinname'];
 365                 }
 366                 global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
 367                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 368                 global $wgOut, $wgArticle;
 369                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 370                 global $wgUseAjax, $wgAjaxWatch;
 371                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 372                 global $wgRestrictionTypes;
 373                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 374                 global $wgSitename;
 375
 376                 $ns = $wgTitle->getNamespace();
 377                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 378                 $separatorTransTable = $wgContLang->separatorTransformTable();
 379                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 380                 $compactSeparatorTransTable = array(
 381                         implode( "\t", array_keys( $separatorTransTable ) ),
 382                         implode( "\t", $separatorTransTable ),
 383                 );
 384                 $digitTransTable = $wgContLang->digitTransformTable();
 385                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 386                 $compactDigitTransTable = array(
 387                         implode( "\t", array_keys( $digitTransTable ) ),
 388                         implode( "\t", $digitTransTable ),
 389                 );
 390
 391                 $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
 392                 $vars = array(
 393                         'skin' => $skinName,
 394                         'stylepath' => $wgStylePath,
 395                         'wgUrlProtocols' => wfUrlProtocols(),
 396                         'wgArticlePath' => $wgArticlePath,
 397                         'wgScriptPath' => $wgScriptPath,
 398                         'wgScriptExtension' => $wgScriptExtension,
 399                         'wgScript' => $wgScript,
 400                         'wgVariantArticlePath' => $wgVariantArticlePath,
 401                         'wgActionPaths' => (object)$wgActionPaths,
 402                         'wgServer' => $wgServer,
 403                         'wgCanonicalNamespace' => $nsname,
 404                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 405                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 406                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 407                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 408                         'wgTitle' => $wgTitle->getText(),
 409                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 410                         'wgArticleId' => $wgTitle->getArticleId(),
 411                         'wgIsArticle' => $wgOut->isArticle(),
 412                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 413                         'wgUserGroups' => $wgUser->isAnon() ? null : $wgUser->getEffectiveGroups(),
 414                         'wgUserLanguage' => $wgLang->getCode(),
 415                         'wgContentLanguage' => $wgContLang->getCode(),
 416                         'wgBreakFrames' => $wgBreakFrames,
 417                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 418                         'wgVersion' => $wgVersion,
 419                         'wgEnableAPI' => $wgEnableAPI,
 420                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 421                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 422                         'wgDigitTransformTable' => $compactDigitTransTable,
 423                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 424                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 425                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 426                         'wgSiteName' => $wgSitename,
 427                         'wgCategories' => $wgOut->getCategories(),
 428                 );
 429                 if ( $wgContLang->hasVariants() ) {
 430                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 431                 }
 432
 433                 // if on upload page output the extension list & js_upload
 434                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) == 'Upload' ) {
 435                         global $wgFileExtensions, $wgAjaxUploadInterface;
 436                         $vars['wgFileExtensions'] = $wgFileExtensions;
 437                 }
 438
 439                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ) {
 440                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 441                         $vars['wgDBname'] = $wgDBname;
 442                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 443                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 444                 }
 445
 446                 foreach( $wgRestrictionTypes as $type ) {
 447                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 448                 }
 449
 450                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 451                         $msgs = (object)array();
 452                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching',
 453                                 'tooltip-ca-watch', 'tooltip-ca-unwatch' ) as $msgName ) {
 454                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 455                         }
 456                         $vars['wgAjaxWatch'] = $msgs;
 457                 }
 458
 459                 // Allow extensions to add their custom variables to the global JS variables
 460                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 461
 462                 return self::makeVariablesScript( $vars );
 463         }
 464
 465         /**
 466          * To make it harder for someone to slip a user a fake
 467          * user-JavaScript or user-CSS preview, a random token
 468          * is associated with the login session. If it's not
 469          * passed back with the preview request, we won't render
 470          * the code.
 471          *
 472          * @param $action String: 'edit', 'submit' etc.
 473          * @return bool
 474          */
 475         public function userCanPreview( $action ) {
 476                 global $wgRequest, $wgUser;
 477
 478                 if( $action != 'submit' ) {
 479                         return false;
 480                 }
 481                 if( !$wgRequest->wasPosted() ) {
 482                         return false;
 483                 }
 484                 if( !$this->mTitle->userCanEditCssSubpage() ) {
 485                         return false;
 486                 }
 487                 if( !$this->mTitle->userCanEditJsSubpage() ) {
 488                         return false;
 489                 }
 490                 return $wgUser->matchEditToken(
 491                         $wgRequest->getVal( 'wpEditToken' ) );
 492         }
 493
 494         /**
 495          * Generated JavaScript action=raw&gen=js
 496          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 497          * nated together.  For some bizarre reason, it does *not* return any
 498          * custom user JS from subpages.  Huh?
 499          *
 500          * There's absolutely no reason to have separate Monobook/Common JSes.
 501          * Any JS that cares can just check the skin variable generated at the
 502          * top.  For now Monobook.js will be maintained, but it should be consi-
 503          * dered deprecated.
 504          *
 505          * @param $skinName String: If set, overrides the skin name
 506          * @return string
 507          */
 508         public function generateUserJs( $skinName = null ) {
 509                 global $wgStylePath;
 510
 511                 wfProfileIn( __METHOD__ );
 512                 if( !$skinName ) {
 513                         $skinName = $this->getSkinName();
 514                 }
 515
 516                 $s = "/* generated javascript */\n";
 517                 $s .= "var skin = '" . Xml::escapeJsString( $skinName ) . "';\n";
 518                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 519                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 520                 $commonJs = wfMsgExt( 'common.js', 'content' );
 521                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 522                         $s .= $commonJs;
 523                 }
 524
 525                 $s .= "\n\n/* MediaWiki:" . ucfirst( $skinName ) . ".js */\n";
 526                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 527                 // by checking for default message content
 528                 $msgKey = ucfirst( $skinName ) . '.js';
 529                 $userJS = wfMsgExt( $msgKey, 'content' );
 530                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 531                         $s .= $userJS;
 532                 }
 533
 534                 wfProfileOut( __METHOD__ );
 535                 return $s;
 536         }
 537
 538         /**
 539          * Generate user stylesheet for action=raw&gen=css
 540          */
 541         public function generateUserStylesheet() {
 542                 wfProfileIn( __METHOD__ );
 543                 $s = "/* generated user stylesheet */\n" .
 544                         $this->reallyGenerateUserStylesheet();
 545                 wfProfileOut( __METHOD__ );
 546                 return $s;
 547         }
 548
 549         /**
 550          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 551          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 552          */
 553         protected function reallyGenerateUserStylesheet() {
 554                 global $wgUser;
 555                 $s = '';
 556                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 557                         $underline = $undopt ? 'underline' : 'none';
 558                         $s .= "a { text-decoration: $underline; }\n";
 559                 }
 560                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 561                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 562                 } else {
 563                         $s .= <<<CSS
 564 a.new, #quickbar a.new,
 565 a.stub, #quickbar a.stub {
 566         color: inherit;
 567 }
 568 a.new:after, #quickbar a.new:after {
 569         content: "?";
 570         color: #CC2200;
 571 }
 572 a.stub:after, #quickbar a.stub:after {
 573         content: "!";
 574         color: #772233;
 575 }
 576 CSS;
 577                 }
 578                 if( $wgUser->getOption( 'justify' ) ) {
 579                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 580                 }
 581                 if( !$wgUser->getOption( 'showtoc' ) ) {
 582                         $s .= "#toc { display: none; }\n";
 583                 }
 584                 if( !$wgUser->getOption( 'editsection' ) ) {
 585                         $s .= ".editsection { display: none; }\n";
 586                 }
 587                 $fontstyle = $wgUser->getOption( 'editfont' );
 588                 if ( $fontstyle !== 'default' ) {
 589                         $s .= "textarea { font-family: $fontstyle; }\n";
 590                 }
 591                 return $s;
 592         }
 593
 594         /**
 595          * @private
 596          */
 597         function setupUserCss( OutputPage $out ) {
 598                 global $wgRequest, $wgContLang, $wgUser;
 599                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 600
 601                 wfProfileIn( __METHOD__ );
 602
 603                 $this->setupSkinUserCss( $out );
 604
 605                 $siteargs = array(
 606                         'action' => 'raw',
 607                         'maxage' => $wgSquidMaxage,
 608                 );
 609
 610                 // Add any extension CSS
 611                 foreach ( $out->getExtStyle() as $url ) {
 612                         $out->addStyle( $url );
 613                 }
 614
 615                 // If we use the site's dynamic CSS, throw that in, too
 616                 // Per-site custom styles
 617                 if( $wgUseSiteCss ) {
 618                         global $wgHandheldStyle;
 619                         $query = wfArrayToCGI( array(
 620                                 'usemsgcache' => 'yes',
 621                                 'ctype' => 'text/css',
 622                                 'smaxage' => $wgSquidMaxage
 623                         ) + $siteargs );
 624                         # Site settings must override extension css! (bug 15025)
 625                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 626                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 627                         if( $wgHandheldStyle ) {
 628                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 629                         }
 630                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 631                 }
 632
 633                 global $wgAllowUserCssPrefs;
 634                 if( $wgAllowUserCssPrefs ){
 635                         if( $wgUser->isLoggedIn() ) {
 636                                 // Ensure that logged-in users' generated CSS isn't clobbered
 637                                 // by anons' publicly cacheable generated CSS.
 638                                 $siteargs['smaxage'] = '0';
 639                                 $siteargs['ts'] = $wgUser->mTouched;
 640                         }
 641                         // Per-user styles based on preferences
 642                         $siteargs['gen'] = 'css';
 643                         if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 644                                 $siteargs['useskin'] = $us;
 645                         }
 646                         $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 647                 }
 648
 649                 // Per-user custom style pages
 650                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 651                         $action = $wgRequest->getVal( 'action' );
 652                         # If we're previewing the CSS page, use it
 653                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 654                                 // @FIXME: properly escape the cdata!
 655                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 656                         } else {
 657                                 $names = array( 'common', $this->getSkinName() );
 658                                 foreach( $names as $name ) {
 659                                         $out->addStyle( self::makeUrl(
 660                                                 $this->userpage . '/' . $name . '.css',
 661                                                 'action=raw&ctype=text/css' )
 662                                         );
 663                                 }
 664                         }
 665                 }
 666
 667                 wfProfileOut( __METHOD__ );
 668         }
 669
 670         /**
 671          * Add skin specific stylesheets
 672          * @param $out OutputPage
 673          */
 674         function setupSkinUserCss( OutputPage $out ) {
 675                 $out->addStyle( 'common/shared.css' );
 676                 $out->addStyle( 'common/oldshared.css' );
 677                 $out->addStyle( $this->getStylesheet() );
 678                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 679         }
 680
 681         function getPageClasses( $title ) {
 682                 $numeric = 'ns-' . $title->getNamespace();
 683                 if( $title->getNamespace() == NS_SPECIAL ) {
 684                         $type = 'ns-special';
 685                 } elseif( $title->isTalkPage() ) {
 686                         $type = 'ns-talk';
 687                 } else {
 688                         $type = 'ns-subject';
 689                 }
 690                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 691                 return "$numeric $type $name";
 692         }
 693
 694         /**
 695          * URL to the logo
 696          */
 697         function getLogo() {
 698                 global $wgLogo;
 699                 return $wgLogo;
 700         }
 701
 702         /**
 703          * This will be called immediately after the <body> tag.  Split into
 704          * two functions to make it easier to subclass.
 705          */
 706         function beforeContent() {
 707                 return $this->doBeforeContent();
 708         }
 709
 710         function doBeforeContent() {
 711                 global $wgContLang;
 712                 wfProfileIn( __METHOD__ );
 713
 714                 $s = '';
 715                 $qb = $this->qbSetting();
 716
 717                 $langlinks = $this->otherLanguages();
 718                 if( $langlinks ) {
 719                         $rows = 2;
 720                         $borderhack = '';
 721                 } else {
 722                         $rows = 1;
 723                         $langlinks = false;
 724                         $borderhack = 'class="top"';
 725                 }
 726
 727                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 728                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 729
 730                 $shove = ( $qb != 0 );
 731                 $left = ( $qb == 1 || $qb == 3 );
 732                 if( $wgContLang->isRTL() ) {
 733                         $left = !$left;
 734                 }
 735
 736                 if( !$shove ) {
 737                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 738                                 $this->logoText() . '</td>';
 739                 } elseif( $left ) {
 740                         $s .= $this->getQuickbarCompensator( $rows );
 741                 }
 742                 $l = $wgContLang->alignStart();
 743                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 744
 745                 $s .= $this->topLinks();
 746                 $s .= '<p class="subtitle">' . $this->pageTitleLinks() . "</p>\n";
 747
 748                 $r = $wgContLang->alignEnd();
 749                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 750                 $s .= $this->nameAndLogin();
 751                 $s .= "\n<br />" . $this->searchForm() . '</td>';
 752
 753                 if ( $langlinks ) {
 754                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 755                 }
 756
 757                 if ( $shove && !$left ) { # Right
 758                         $s .= $this->getQuickbarCompensator( $rows );
 759                 }
 760                 $s .= "</tr>\n</table>\n</div>\n";
 761                 $s .= "\n<div id='article'>\n";
 762
 763                 $notice = wfGetSiteNotice();
 764                 if( $notice ) {
 765                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 766                 }
 767                 $s .= $this->pageTitle();
 768                 $s .= $this->pageSubtitle();
 769                 $s .= $this->getCategories();
 770                 wfProfileOut( __METHOD__ );
 771                 return $s;
 772         }
 773
 774         function getCategoryLinks() {
 775                 global $wgOut, $wgUseCategoryBrowser;
 776                 global $wgContLang, $wgUser;
 777
 778                 if( count( $wgOut->mCategoryLinks ) == 0 ) {
 779                         return '';
 780                 }
 781
 782                 # Separator
 783                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 784
 785                 // Use Unicode bidi embedding override characters,
 786                 // to make sure links don't smash each other up in ugly ways.
 787                 $dir = $wgContLang->getDir();
 788                 $embed = "<span dir='$dir'>";
 789                 $pop = '</span>';
 790
 791                 $allCats = $wgOut->getCategoryLinks();
 792                 $s = '';
 793                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 794                 if ( !empty( $allCats['normal'] ) ) {
 795                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 796
 797                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 798                         $s .= '<div id="mw-normal-catlinks">' .
 799                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 800                                 . $colon . $t . '</div>';
 801                 }
 802
 803                 # Hidden categories
 804                 if ( isset( $allCats['hidden'] ) ) {
 805                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 806                                 $class ='mw-hidden-cats-user-shown';
 807                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 808                                 $class = 'mw-hidden-cats-ns-shown';
 809                         } else {
 810                                 $class = 'mw-hidden-cats-hidden';
 811                         }
 812                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 813                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 814                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 815                                 '</div>';
 816                 }
 817
 818                 # optional 'dmoz-like' category browser. Will be shown under the list
 819                 # of categories an article belong to
 820                 if( $wgUseCategoryBrowser ) {
 821                         $s .= '<br /><hr />';
 822
 823                         # get a big array of the parents tree
 824                         $parenttree = $this->mTitle->getParentCategoryTree();
 825                         # Skin object passed by reference cause it can not be
 826                         # accessed under the method subfunction drawCategoryBrowser
 827                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 828                         # Clean out bogus first entry and sort them
 829                         unset( $tempout[0] );
 830                         asort( $tempout );
 831                         # Output one per line
 832                         $s .= implode( "<br />\n", $tempout );
 833                 }
 834
 835                 return $s;
 836         }
 837
 838         /**
 839          * Render the array as a serie of links.
 840          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 841          * @param &skin Object: skin passed by reference
 842          * @return String separated by &gt;, terminate with "\n"
 843          */
 844         function drawCategoryBrowser( $tree, &$skin ) {
 845                 $return = '';
 846                 foreach( $tree as $element => $parent ) {
 847                         if( empty( $parent ) ) {
 848                                 # element start a new list
 849                                 $return .= "\n";
 850                         } else {
 851                                 # grab the others elements
 852                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 853                         }
 854                         # add our current element to the list
 855                         $eltitle = Title::newFromText( $element );
 856                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 857                 }
 858                 return $return;
 859         }
 860
 861         function getCategories() {
 862                 $catlinks = $this->getCategoryLinks();
 863
 864                 $classes = 'catlinks';
 865
 866                 // Check what we're showing
 867                 global $wgOut, $wgUser;
 868                 $allCats = $wgOut->getCategoryLinks();
 869                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 870                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 871
 872                 if( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 873                         $classes .= ' catlinks-allhidden';
 874                 }
 875
 876                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 877         }
 878
 879         function getQuickbarCompensator( $rows = 1 ) {
 880                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 881         }
 882
 883         /**
 884          * This runs a hook to allow extensions placing their stuff after content
 885          * and article metadata (e.g. categories).
 886          * Note: This function has nothing to do with afterContent().
 887          *
 888          * This hook is placed here in order to allow using the same hook for all
 889          * skins, both the SkinTemplate based ones and the older ones, which directly
 890          * use this class to get their data.
 891          *
 892          * The output of this function gets processed in SkinTemplate::outputPage() for
 893          * the SkinTemplate based skins, all other skins should directly echo it.
 894          *
 895          * Returns an empty string by default, if not changed by any hook function.
 896          */
 897         protected function afterContentHook() {
 898                 $data = '';
 899
 900                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ) {
 901                         // adding just some spaces shouldn't toggle the output
 902                         // of the whole <div/>, so we use trim() here
 903                         if( trim( $data ) != '' ) {
 904                                 // Doing this here instead of in the skins to
 905                                 // ensure that the div has the same ID in all
 906                                 // skins
 907                                 $data = "<div id='mw-data-after-content'>\n" .
 908                                         "\t$data\n" .
 909                                         "</div>\n";
 910                         }
 911                 } else {
 912                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 913                 }
 914
 915                 return $data;
 916         }
 917
 918         /**
 919          * Generate debug data HTML for displaying at the bottom of the main content
 920          * area.
 921          * @return String HTML containing debug data, if enabled (otherwise empty).
 922          */
 923         protected function generateDebugHTML() {
 924                 global $wgShowDebug, $wgOut;
 925                 if ( $wgShowDebug ) {
 926                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 927                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 928                                 $listInternals . "</ul>\n";
 929                 }
 930                 return '';
 931         }
 932
 933         private function formatDebugHTML( $debugText ) {
 934                 $lines = explode( "\n", $debugText );
 935                 $curIdent = 0;
 936                 $ret = '<li>';
 937                 foreach( $lines as $line ) {
 938                         $m = array();
 939                         $display = ltrim( $line );
 940                         $ident = strlen( $line ) - strlen( $display );
 941                         $diff = $ident - $curIdent;
 942
 943                         if ( $display == '' ) {
 944                                 $display = "\xc2\xa0";
 945                         }
 946
 947                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 948                                 $ident = $curIdent;
 949                                 $diff = 0;
 950                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 951                         } else {
 952                                 $display = htmlspecialchars( $display );
 953                         }
 954
 955                         if ( $diff < 0 ) {
 956                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 957                         } elseif ( $diff == 0 ) {
 958                                 $ret .= "</li><li>\n";
 959                         } else {
 960                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 961                         }
 962                         $ret .= $display . "\n";
 963
 964                         $curIdent = $ident;
 965                 }
 966                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 967                 return $ret;
 968         }
 969
 970         /**
 971          * This gets called shortly before the </body> tag.
 972          * @return String HTML to be put before </body>
 973          */
 974         function afterContent() {
 975                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 976                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 977         }
 978
 979         /**
 980          * This gets called shortly before the </body> tag.
 981          * @return String HTML-wrapped JS code to be put before </body>
 982          */
 983         function bottomScripts() {
 984                 $bottomScriptText = "\n" . Html::inlineScript( 'if (window.runOnloadHook) runOnloadHook();' ) . "\n";
 985                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 986                 return $bottomScriptText;
 987         }
 988
 989         /** @return string Retrievied from HTML text */
 990         function printSource() {
 991                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 992                 return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
 993         }
 994
 995         function printFooter() {
 996                 return "<p>" .  $this->printSource() .
 997                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 998         }
 999
1000         /** overloaded by derived classes */
1001         function doAfterContent() {
1002                 return '</div></div>';
1003         }
1004
1005         function pageTitleLinks() {
1006                 global $wgOut, $wgUser, $wgRequest, $wgLang;
1007
1008                 $oldid = $wgRequest->getVal( 'oldid' );
1009                 $diff = $wgRequest->getVal( 'diff' );
1010                 $action = $wgRequest->getText( 'action' );
1011
1012                 $s[] = $this->printableLink();
1013                 $disclaimer = $this->disclaimerLink(); # may be empty
1014                 if( $disclaimer ) {
1015                         $s[] = $disclaimer;
1016                 }
1017                 $privacy = $this->privacyLink(); # may be empty too
1018                 if( $privacy ) {
1019                         $s[] = $privacy;
1020                 }
1021
1022                 if ( $wgOut->isArticleRelated() ) {
1023                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1024                                 $name = $this->mTitle->getDBkey();
1025                                 $image = wfFindFile( $this->mTitle );
1026                                 if( $image ) {
1027                                         $link = htmlspecialchars( $image->getURL() );
1028                                         $style = $this->getInternalLinkAttributes( $link, $name );
1029                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1030                                 }
1031                         }
1032                 }
1033                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1034                         $s[] .= $this->link(
1035                                         $this->mTitle,
1036                                         wfMsg( 'currentrev' ),
1037                                         array(),
1038                                         array(),
1039                                         array( 'known', 'noclasses' )
1040                         );
1041                 }
1042
1043                 if ( $wgUser->getNewtalk() ) {
1044                         # do not show "You have new messages" text when we are viewing our
1045                         # own talk page
1046                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1047                                 $tl = $this->link(
1048                                         $wgUser->getTalkPage(),
1049                                         wfMsgHtml( 'newmessageslink' ),
1050                                         array(),
1051                                         array( 'redirect' => 'no' ),
1052                                         array( 'known', 'noclasses' )
1053                                 );
1054
1055                                 $dl = $this->link(
1056                                         $wgUser->getTalkPage(),
1057                                         wfMsgHtml( 'newmessagesdifflink' ),
1058                                         array(),
1059                                         array( 'diff' => 'cur' ),
1060                                         array( 'known', 'noclasses' )
1061                                 );
1062                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1063                                 # disable caching
1064                                 $wgOut->setSquidMaxage( 0 );
1065                                 $wgOut->enableClientCache( false );
1066                         }
1067                 }
1068
1069                 $undelete = $this->getUndeleteLink();
1070                 if( !empty( $undelete ) ) {
1071                         $s[] = $undelete;
1072                 }
1073                 return $wgLang->pipeList( $s );
1074         }
1075
1076         function getUndeleteLink() {
1077                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1078
1079                 $action = $wgRequest->getVal( 'action', 'view' );
1080
1081                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1082                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1083                         $n = $this->mTitle->isDeleted();
1084                         if ( $n ) {
1085                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1086                                         $msg = 'thisisdeleted';
1087                                 } else {
1088                                         $msg = 'viewdeleted';
1089                                 }
1090                                 return wfMsg(
1091                                         $msg,
1092                                         $this->link(
1093                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1094                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1095                                                 array(),
1096                                                 array(),
1097                                                 array( 'known', 'noclasses' )
1098                                         )
1099                                 );
1100                         }
1101                 }
1102                 return '';
1103         }
1104
1105         function printableLink() {
1106                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1107
1108                 $s = array();
1109
1110                 if ( !$wgOut->isPrintable() ) {
1111                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1112                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1113                 }
1114
1115                 if( $wgOut->isSyndicated() ) {
1116                         foreach( $wgFeedClasses as $format => $class ) {
1117                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1118                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1119                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1120                         }
1121                 }
1122                 return $wgLang->pipeList( $s );
1123         }
1124
1125         /**
1126          * Gets the h1 element with the page title.
1127          * @return string
1128          */
1129         function pageTitle() {
1130                 global $wgOut;
1131                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1132                 return $s;
1133         }
1134
1135         function pageSubtitle() {
1136                 global $wgOut;
1137
1138                 $sub = $wgOut->getSubtitle();
1139                 if ( $sub == '' ) {
1140                         global $wgExtraSubtitle;
1141                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1142                 }
1143                 $subpages = $this->subPageSubtitle();
1144                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1145                 $s = "<p class='subtitle'>{$sub}</p>\n";
1146                 return $s;
1147         }
1148
1149         function subPageSubtitle() {
1150                 $subpages = '';
1151                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) ) {
1152                         return $subpages;
1153                 }
1154
1155                 global $wgOut;
1156                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1157                         $ptext = $this->mTitle->getPrefixedText();
1158                         if( preg_match( '/\//', $ptext ) ) {
1159                                 $links = explode( '/', $ptext );
1160                                 array_pop( $links );
1161                                 $c = 0;
1162                                 $growinglink = '';
1163                                 $display = '';
1164                                 foreach( $links as $link ) {
1165                                         $growinglink .= $link;
1166                                         $display .= $link;
1167                                         $linkObj = Title::newFromText( $growinglink );
1168                                         if( is_object( $linkObj ) && $linkObj->exists() ) {
1169                                                 $getlink = $this->link(
1170                                                         $linkObj,
1171                                                         htmlspecialchars( $display ),
1172                                                         array(),
1173                                                         array(),
1174                                                         array( 'known', 'noclasses' )
1175                                                 );
1176                                                 $c++;
1177                                                 if( $c > 1 ) {
1178                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1179                                                 } else  {
1180                                                         $subpages .= '&lt; ';
1181                                                 }
1182                                                 $subpages .= $getlink;
1183                                                 $display = '';
1184                                         } else {
1185                                                 $display .= '/';
1186                                         }
1187                                         $growinglink .= '/';
1188                                 }
1189                         }
1190                 }
1191                 return $subpages;
1192         }
1193
1194         /**
1195          * Returns true if the IP should be shown in the header
1196          */
1197         function showIPinHeader() {
1198                 global $wgShowIPinHeader;
1199                 return $wgShowIPinHeader && session_id() != '';
1200         }
1201
1202         function nameAndLogin() {
1203                 global $wgUser, $wgLang, $wgContLang;
1204
1205                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1206
1207                 $ret = '';
1208                 if ( $wgUser->isAnon() ) {
1209                         if( $this->showIPinHeader() ) {
1210                                 $name = wfGetIP();
1211
1212                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1213                                         $wgLang->getNsText( NS_TALK ) );
1214
1215                                 $ret .= "$name ($talkLink)";
1216                         } else {
1217                                 $ret .= wfMsg( 'notloggedin' );
1218                         }
1219
1220                         $returnTo = $this->mTitle->getPrefixedDBkey();
1221                         $query = array();
1222                         if ( $logoutPage != $returnTo ) {
1223                                 $query['returnto'] = $returnTo;
1224                         }
1225
1226                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1227                                 ? 'nav-login-createaccount'
1228                                 : 'login';
1229                         $ret .= "\n<br />" . $this->link(
1230                                 SpecialPage::getTitleFor( 'Userlogin' ),
1231                                 wfMsg( $loginlink ), array(), $query
1232                         );
1233                 } else {
1234                         $returnTo = $this->mTitle->getPrefixedDBkey();
1235                         $talkLink = $this->link( $wgUser->getTalkPage(),
1236                                 $wgLang->getNsText( NS_TALK ) );
1237
1238                         $ret .= $this->link( $wgUser->getUserPage(),
1239                                 htmlspecialchars( $wgUser->getName() ) );
1240                         $ret .= " ($talkLink)<br />";
1241                         $ret .= $wgLang->pipeList( array(
1242                                 $this->link(
1243                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1244                                         array(), array( 'returnto' => $returnTo )
1245                                 ),
1246                                 $this->specialLink( 'preferences' ),
1247                         ) );
1248                 }
1249                 $ret = $wgLang->pipeList( array(
1250                         $ret,
1251                         $this->link(
1252                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1253                                 wfMsg( 'help' )
1254                         ),
1255                 ) );
1256
1257                 return $ret;
1258         }
1259
1260         function getSearchLink() {
1261                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1262                 return $searchPage->getLocalURL();
1263         }
1264
1265         function escapeSearchLink() {
1266                 return htmlspecialchars( $this->getSearchLink() );
1267         }
1268
1269         function searchForm() {
1270                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1271                 $search = $wgRequest->getText( 'search' );
1272
1273                 $s = '<form id="searchform' . $this->searchboxes . '" name="search" class="inline" method="post" action="'
1274                   . $this->escapeSearchLink() . "\">\n"
1275                   . '<input type="text" id="searchInput' . $this->searchboxes . '" name="search" size="19" value="'
1276                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1277                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1278
1279                 if( $wgUseTwoButtonsSearchForm ) {
1280                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1281                 } else {
1282                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1283                 }
1284
1285                 $s .= '</form>';
1286
1287                 // Ensure unique id's for search boxes made after the first
1288                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1289
1290                 return $s;
1291         }
1292
1293         function topLinks() {
1294                 global $wgOut;
1295
1296                 $s = array(
1297                         $this->mainPageLink(),
1298                         $this->specialLink( 'recentchanges' )
1299                 );
1300
1301                 if ( $wgOut->isArticleRelated() ) {
1302                         $s[] = $this->editThisPage();
1303                         $s[] = $this->historyLink();
1304                 }
1305                 # Many people don't like this dropdown box
1306                 #$s[] = $this->specialPagesList();
1307
1308                 if( $this->variantLinks() ) {
1309                         $s[] = $this->variantLinks();
1310                 }
1311
1312                 if( $this->extensionTabLinks() ) {
1313                         $s[] = $this->extensionTabLinks();
1314                 }
1315
1316                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1317                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1318         }
1319
1320         /**
1321          * Compatibility for extensions adding functionality through tabs.
1322          * Eventually these old skins should be replaced with SkinTemplate-based
1323          * versions, sigh...
1324          * @return string
1325          */
1326         function extensionTabLinks() {
1327                 $tabs = array();
1328                 $out = '';
1329                 $s = array();
1330                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1331                 foreach( $tabs as $tab ) {
1332                         $s[] = Xml::element( 'a',
1333                                 array( 'href' => $tab['href'] ),
1334                                 $tab['text'] );
1335                 }
1336
1337                 if( count( $s ) ) {
1338                         global $wgLang;
1339
1340                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1341                         $out .= $wgLang->pipeList( $s );
1342                 }
1343
1344                 return $out;
1345         }
1346
1347         /**
1348          * Language/charset variant links for classic-style skins
1349          * @return string
1350          */
1351         function variantLinks() {
1352                 $s = '';
1353                 /* show links to different language variants */
1354                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1355                 $variants = $wgContLang->getVariants();
1356                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1357                         foreach( $variants as $code ) {
1358                                 $varname = $wgContLang->getVariantname( $code );
1359                                 if( $varname == 'disable' ) {
1360                                         continue;
1361                                 }
1362                                 $s = $wgLang->pipeList( array(
1363                                         $s,
1364                                         '<a href="' . $this->mTitle->escapeLocalURL( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1365                                 ) );
1366                         }
1367                 }
1368                 return $s;
1369         }
1370
1371         function bottomLinks() {
1372                 global $wgOut, $wgUser, $wgUseTrackbacks;
1373                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1374
1375                 $s = '';
1376                 if ( $wgOut->isArticleRelated() ) {
1377                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1378                         if ( $wgUser->isLoggedIn() ) {
1379                                 $element[] = $this->watchThisPage();
1380                         }
1381                         $element[] = $this->talkLink();
1382                         $element[] = $this->historyLink();
1383                         $element[] = $this->whatLinksHere();
1384                         $element[] = $this->watchPageLinksLink();
1385
1386                         if( $wgUseTrackbacks ) {
1387                                 $element[] = $this->trackbackLink();
1388                         }
1389
1390                         if (
1391                                 $this->mTitle->getNamespace() == NS_USER ||
1392                                 $this->mTitle->getNamespace() == NS_USER_TALK
1393                         )
1394                         {
1395                                 $id = User::idFromName( $this->mTitle->getText() );
1396                                 $ip = User::isIP( $this->mTitle->getText() );
1397
1398                                 # Both anons and non-anons have contributions list
1399                                 if( $id || $ip ) {
1400                                         $element[] = $this->userContribsLink();
1401                                 }
1402                                 if( $this->showEmailUser( $id ) ) {
1403                                         $element[] = $this->emailUserLink();
1404                                 }
1405                         }
1406
1407                         $s = implode( $element, $sep );
1408
1409                         if ( $this->mTitle->getArticleId() ) {
1410                                 $s .= "\n<br />";
1411                                 // Delete/protect/move links for privileged users
1412                                 if( $wgUser->isAllowed( 'delete' ) ) {
1413                                         $s .= $this->deleteThisPage();
1414                                 }
1415                                 if( $wgUser->isAllowed( 'protect' ) ) {
1416                                         $s .= $sep . $this->protectThisPage();
1417                                 }
1418                                 if( $wgUser->isAllowed( 'move' ) ) {
1419                                         $s .= $sep . $this->moveThisPage();
1420                                 }
1421                         }
1422                         $s .= "<br />\n" . $this->otherLanguages();
1423                 }
1424
1425                 return $s;
1426         }
1427
1428         function pageStats() {
1429                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1430                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1431
1432                 $oldid = $wgRequest->getVal( 'oldid' );
1433                 $diff = $wgRequest->getVal( 'diff' );
1434                 if ( !$wgOut->isArticle() ) {
1435                         return '';
1436                 }
1437                 if( !$wgArticle instanceof Article ) {
1438                         return '';
1439                 }
1440                 if ( isset( $oldid ) || isset( $diff ) ) {
1441                         return '';
1442                 }
1443                 if ( 0 == $wgArticle->getID() ) {
1444                         return '';
1445                 }
1446
1447                 $s = '';
1448                 if ( !$wgDisableCounters ) {
1449                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1450                         if ( $count ) {
1451                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1452                         }
1453                 }
1454
1455                 if( $wgMaxCredits != 0 ) {
1456                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1457                 } else {
1458                         $s .= $this->lastModified();
1459                 }
1460
1461                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1462                         $dbr = wfGetDB( DB_SLAVE );
1463                         $res = $dbr->select(
1464                                 'watchlist',
1465                                 array( 'COUNT(*) AS n' ),
1466                                 array(
1467                                         'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ),
1468                                         'wl_namespace' => $this->mTitle->getNamespace()
1469                                 ),
1470                                 __METHOD__
1471                         );
1472                         $x = $dbr->fetchObject( $res );
1473
1474                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1475                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1476                         );
1477                 }
1478
1479                 return $s . ' ' .  $this->getCopyright();
1480         }
1481
1482         function getCopyright( $type = 'detect' ) {
1483                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1484
1485                 if ( $type == 'detect' ) {
1486                         $diff = $wgRequest->getVal( 'diff' );
1487                         $isCur = $wgArticle && $wgArticle->isCurrent();
1488                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1489                                 $type = 'history';
1490                         } else {
1491                                 $type = 'normal';
1492                         }
1493                 }
1494
1495                 if ( $type == 'history' ) {
1496                         $msg = 'history_copyright';
1497                 } else {
1498                         $msg = 'copyright';
1499                 }
1500
1501                 $out = '';
1502                 if( $wgRightsPage ) {
1503                         $title = Title::newFromText( $wgRightsPage );
1504                         $link = $this->linkKnown( $title, $wgRightsText );
1505                 } elseif( $wgRightsUrl ) {
1506                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1507                 } elseif( $wgRightsText ) {
1508                         $link = $wgRightsText;
1509                 } else {
1510                         # Give up now
1511                         return $out;
1512                 }
1513                 // Allow for site and per-namespace customization of copyright notice.
1514                 if( isset( $wgArticle ) ) {
1515                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1516                 }
1517
1518                 $out .= wfMsgForContent( $msg, $link );
1519                 return $out;
1520         }
1521
1522         function getCopyrightIcon() {
1523                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1524                 $out = '';
1525                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1526                         $out = $wgCopyrightIcon;
1527                 } elseif ( $wgRightsIcon ) {
1528                         $icon = htmlspecialchars( $wgRightsIcon );
1529                         if ( $wgRightsUrl ) {
1530                                 $url = htmlspecialchars( $wgRightsUrl );
1531                                 $out .= '<a href="'.$url.'">';
1532                         }
1533                         $text = htmlspecialchars( $wgRightsText );
1534                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1535                         if ( $wgRightsUrl ) {
1536                                 $out .= '</a>';
1537                         }
1538                 }
1539                 return $out;
1540         }
1541
1542         /**
1543          * Gets the powered by MediaWiki icon.
1544          * @return string
1545          */
1546         function getPoweredBy() {
1547                 global $wgStylePath;
1548                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1549                 $img = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1550                 return $img;
1551         }
1552
1553         function lastModified() {
1554                 global $wgLang, $wgArticle;
1555                 if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest() ) {
1556                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1557                 } else {
1558                         $timestamp = $wgArticle->getTimestamp();
1559                 }
1560                 if ( $timestamp ) {
1561                         $d = $wgLang->date( $timestamp, true );
1562                         $t = $wgLang->time( $timestamp, true );
1563                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1564                 } else {
1565                         $s = '';
1566                 }
1567                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1568                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1569                 }
1570                 return $s;
1571         }
1572
1573         function logoText( $align = '' ) {
1574                 if ( $align != '' ) {
1575                         $a = " align='{$align}'";
1576                 } else {
1577                         $a = '';
1578                 }
1579
1580                 $mp = wfMsg( 'mainpage' );
1581                 $mptitle = Title::newMainPage();
1582                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1583
1584                 $logourl = $this->getLogo();
1585                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1586                 return $s;
1587         }
1588
1589         /**
1590          * Show a drop-down box of special pages
1591          */
1592         function specialPagesList() {
1593                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1594                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1595                 foreach ( $pages as $name => $page ) {
1596                         $pages[$name] = $page->getDescription();
1597                 }
1598
1599                 $go = wfMsg( 'go' );
1600                 $sp = wfMsg( 'specialpages' );
1601                 $spp = $wgContLang->specialPage( 'Specialpages' );
1602
1603                 $s = '<form id="specialpages" method="get" ' .
1604                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1605                 $s .= "<select name=\"wpDropdown\">\n";
1606                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1607
1608
1609                 foreach ( $pages as $name => $desc ) {
1610                         $p = $wgContLang->specialPage( $name );
1611                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1612                 }
1613                 $s .= "</select>\n";
1614                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1615                 $s .= "</form>\n";
1616                 return $s;
1617         }
1618
1619         /**
1620          * Gets the link to the wiki's main page.
1621          * @return string
1622          */
1623         function mainPageLink() {
1624                 $s = $this->link(
1625                         Title::newMainPage(),
1626                         wfMsg( 'mainpage' ),
1627                         array(),
1628                         array(),
1629                         array( 'known', 'noclasses' )
1630                 );
1631                 return $s;
1632         }
1633
1634         private function footerLink( $desc, $page ) {
1635                 // if the link description has been set to "-" in the default language,
1636                 if ( wfMsgForContent( $desc )  == '-') {
1637                         // then it is disabled, for all languages.
1638                         return '';
1639                 } else {
1640                         // Otherwise, we display the link for the user, described in their
1641                         // language (which may or may not be the same as the default language),
1642                         // but we make the link target be the one site-wide page.
1643                         $title = Title::newFromText( wfMsgForContent( $page ) );
1644                         return $this->linkKnown(
1645                                 $title,
1646                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1647                         );
1648                 }
1649         }
1650
1651         /**
1652          * Gets the link to the wiki's privacy policy page.
1653          */
1654         function privacyLink() {
1655                 return $this->footerLink( 'privacy', 'privacypage' );
1656         }
1657
1658         /**
1659          * Gets the link to the wiki's about page.
1660          */
1661         function aboutLink() {
1662                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1663         }
1664
1665         /**
1666          * Gets the link to the wiki's general disclaimers page.
1667          */
1668         function disclaimerLink() {
1669                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1670         }
1671
1672         function editThisPage() {
1673                 global $wgOut;
1674
1675                 if ( !$wgOut->isArticleRelated() ) {
1676                         $s = wfMsg( 'protectedpage' );
1677                 } else {
1678                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1679                                 $t = wfMsg( 'editthispage' );
1680                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1681                                 $t = wfMsg( 'create-this-page' );
1682                         } else {
1683                                 $t = wfMsg( 'viewsource' );
1684                         }
1685
1686                         $s = $this->link(
1687                                 $this->mTitle,
1688                                 $t,
1689                                 array(),
1690                                 $this->editUrlOptions(),
1691                                 array( 'known', 'noclasses' )
1692                         );
1693                 }
1694                 return $s;
1695         }
1696
1697         /**
1698          * Return URL options for the 'edit page' link.
1699          * This may include an 'oldid' specifier, if the current page view is such.
1700          *
1701          * @return array
1702          * @private
1703          */
1704         function editUrlOptions() {
1705                 global $wgArticle;
1706
1707                 $options = array( 'action' => 'edit' );
1708
1709                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1710                         $options['oldid'] = intval( $this->mRevisionId );
1711                 }
1712
1713                 return $options;
1714         }
1715
1716         function deleteThisPage() {
1717                 global $wgUser, $wgRequest;
1718
1719                 $diff = $wgRequest->getVal( 'diff' );
1720                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1721                         $t = wfMsg( 'deletethispage' );
1722
1723                         $s = $this->link(
1724                                 $this->mTitle,
1725                                 $t,
1726                                 array(),
1727                                 array( 'action' => 'delete' ),
1728                                 array( 'known', 'noclasses' )
1729                         );
1730                 } else {
1731                         $s = '';
1732                 }
1733                 return $s;
1734         }
1735
1736         function protectThisPage() {
1737                 global $wgUser, $wgRequest;
1738
1739                 $diff = $wgRequest->getVal( 'diff' );
1740                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1741                         if ( $this->mTitle->isProtected() ) {
1742                                 $text = wfMsg( 'unprotectthispage' );
1743                                 $query = array( 'action' => 'unprotect' );
1744                         } else {
1745                                 $text = wfMsg( 'protectthispage' );
1746                                 $query = array( 'action' => 'protect' );
1747                         }
1748
1749                         $s = $this->link(
1750                                 $this->mTitle,
1751                                 $text,
1752                                 array(),
1753                                 $query,
1754                                 array( 'known', 'noclasses' )
1755                         );
1756                 } else {
1757                         $s = '';
1758                 }
1759                 return $s;
1760         }
1761
1762         function watchThisPage() {
1763                 global $wgOut;
1764                 ++$this->mWatchLinkNum;
1765
1766                 if ( $wgOut->isArticleRelated() ) {
1767                         if ( $this->mTitle->userIsWatching() ) {
1768                                 $text = wfMsg( 'unwatchthispage' );
1769                                 $query = array( 'action' => 'unwatch' );
1770                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1771                         } else {
1772                                 $text = wfMsg( 'watchthispage' );
1773                                 $query = array( 'action' => 'watch' );
1774                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1775                         }
1776
1777                         $s = $this->link(
1778                                 $this->mTitle,
1779                                 $text,
1780                                 array( 'id' => $id ),
1781                                 $query,
1782                                 array( 'known', 'noclasses' )
1783                         );
1784                 } else {
1785                         $s = wfMsg( 'notanarticle' );
1786                 }
1787                 return $s;
1788         }
1789
1790         function moveThisPage() {
1791                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1792                         return $this->link(
1793                                 SpecialPage::getTitleFor( 'Movepage' ),
1794                                 wfMsg( 'movethispage' ),
1795                                 array(),
1796                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1797                                 array( 'known', 'noclasses' )
1798                         );
1799                 } else {
1800                         // no message if page is protected - would be redundant
1801                         return '';
1802                 }
1803         }
1804
1805         function historyLink() {
1806                 return $this->link(
1807                         $this->mTitle,
1808                         wfMsgHtml( 'history' ),
1809                         array( 'rel' => 'archives' ),
1810                         array( 'action' => 'history' )
1811                 );
1812         }
1813
1814         function whatLinksHere() {
1815                 return $this->link(
1816                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1817                         wfMsgHtml( 'whatlinkshere' ),
1818                         array(),
1819                         array(),
1820                         array( 'known', 'noclasses' )
1821                 );
1822         }
1823
1824         function userContribsLink() {
1825                 return $this->link(
1826                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1827                         wfMsgHtml( 'contributions' ),
1828                         array(),
1829                         array(),
1830                         array( 'known', 'noclasses' )
1831                 );
1832         }
1833
1834         function showEmailUser( $id ) {
1835                 global $wgUser;
1836                 $targetUser = User::newFromId( $id );
1837                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1838                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1839         }
1840
1841         function emailUserLink() {
1842                 return $this->link(
1843                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1844                         wfMsg( 'emailuser' ),
1845                         array(),
1846                         array(),
1847                         array( 'known', 'noclasses' )
1848                 );
1849         }
1850
1851         function watchPageLinksLink() {
1852                 global $wgOut;
1853                 if ( !$wgOut->isArticleRelated() ) {
1854                         return '(' . wfMsg( 'notanarticle' ) . ')';
1855                 } else {
1856                         return $this->link(
1857                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1858                                 wfMsg( 'recentchangeslinked-toolbox' ),
1859                                 array(),
1860                                 array(),
1861                                 array( 'known', 'noclasses' )
1862                         );
1863                 }
1864         }
1865
1866         function trackbackLink() {
1867                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1868                         . wfMsg( 'trackbacklink' ) . '</a>';
1869         }
1870
1871         function otherLanguages() {
1872                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1873
1874                 if ( $wgHideInterlanguageLinks ) {
1875                         return '';
1876                 }
1877
1878                 $a = $wgOut->getLanguageLinks();
1879                 if ( 0 == count( $a ) ) {
1880                         return '';
1881                 }
1882
1883                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1884                 $first = true;
1885                 if( $wgContLang->isRTL() ) {
1886                         $s .= '<span dir="LTR">';
1887                 }
1888                 foreach( $a as $l ) {
1889                         if ( !$first ) {
1890                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1891                         }
1892                         $first = false;
1893
1894                         $nt = Title::newFromText( $l );
1895                         $url = $nt->escapeFullURL();
1896                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1897
1898                         if ( $text == '' ) {
1899                                 $text = $l;
1900                         }
1901                         $style = $this->getExternalLinkAttributes();
1902                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1903                 }
1904                 if( $wgContLang->isRTL() ) {
1905                         $s .= '</span>';
1906                 }
1907                 return $s;
1908         }
1909
1910         function talkLink() {
1911                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1912                         # No discussion links for special pages
1913                         return '';
1914                 }
1915
1916                 $linkOptions = array();
1917
1918                 if( $this->mTitle->isTalkPage() ) {
1919                         $link = $this->mTitle->getSubjectPage();
1920                         switch( $link->getNamespace() ) {
1921                                 case NS_MAIN:
1922                                         $text = wfMsg( 'articlepage' );
1923                                         break;
1924                                 case NS_USER:
1925                                         $text = wfMsg( 'userpage' );
1926                                         break;
1927                                 case NS_PROJECT:
1928                                         $text = wfMsg( 'projectpage' );
1929                                         break;
1930                                 case NS_FILE:
1931                                         $text = wfMsg( 'imagepage' );
1932                                         # Make link known if image exists, even if the desc. page doesn't.
1933                                         if( wfFindFile( $link ) )
1934                                                 $linkOptions[] = 'known';
1935                                         break;
1936                                 case NS_MEDIAWIKI:
1937                                         $text = wfMsg( 'mediawikipage' );
1938                                         break;
1939                                 case NS_TEMPLATE:
1940                                         $text = wfMsg( 'templatepage' );
1941                                         break;
1942                                 case NS_HELP:
1943                                         $text = wfMsg( 'viewhelppage' );
1944                                         break;
1945                                 case NS_CATEGORY:
1946                                         $text = wfMsg( 'categorypage' );
1947                                         break;
1948                                 default:
1949                                         $text = wfMsg( 'articlepage' );
1950                         }
1951                 } else {
1952                         $link = $this->mTitle->getTalkPage();
1953                         $text = wfMsg( 'talkpage' );
1954                 }
1955
1956                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1957
1958                 return $s;
1959         }
1960
1961         function commentLink() {
1962                 global $wgOut;
1963
1964                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1965                         return '';
1966                 }
1967
1968                 # __NEWSECTIONLINK___ changes behaviour here
1969                 # If it is present, the link points to this page, otherwise
1970                 # it points to the talk page
1971                 if( $this->mTitle->isTalkPage() ) {
1972                         $title = $this->mTitle;
1973                 } elseif( $wgOut->showNewSectionLink() ) {
1974                         $title = $this->mTitle;
1975                 } else {
1976                         $title = $this->mTitle->getTalkPage();
1977                 }
1978
1979                 return $this->link(
1980                         $title,
1981                         wfMsg( 'postcomment' ),
1982                         array(),
1983                         array(
1984                                 'action' => 'edit',
1985                                 'section' => 'new'
1986                         ),
1987                         array( 'known', 'noclasses' )
1988                 );
1989         }
1990
1991         /* these are used extensively in SkinTemplate, but also some other places */
1992         static function makeMainPageUrl( $urlaction = '' ) {
1993                 $title = Title::newMainPage();
1994                 self::checkTitle( $title, '' );
1995                 return $title->getLocalURL( $urlaction );
1996         }
1997
1998         static function makeSpecialUrl( $name, $urlaction = '' ) {
1999                 $title = SpecialPage::getTitleFor( $name );
2000                 return $title->getLocalURL( $urlaction );
2001         }
2002
2003         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
2004                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
2005                 return $title->getLocalURL( $urlaction );
2006         }
2007
2008         static function makeI18nUrl( $name, $urlaction = '' ) {
2009                 $title = Title::newFromText( wfMsgForContent( $name ) );
2010                 self::checkTitle( $title, $name );
2011                 return $title->getLocalURL( $urlaction );
2012         }
2013
2014         static function makeUrl( $name, $urlaction = '' ) {
2015                 $title = Title::newFromText( $name );
2016                 self::checkTitle( $title, $name );
2017                 return $title->getLocalURL( $urlaction );
2018         }
2019
2020         /**
2021          * If url string starts with http, consider as external URL, else
2022          * internal
2023          */
2024         static function makeInternalOrExternalUrl( $name ) {
2025                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
2026                         return $name;
2027                 } else {
2028                         return self::makeUrl( $name );
2029                 }
2030         }
2031
2032         # this can be passed the NS number as defined in Language.php
2033         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
2034                 $title = Title::makeTitleSafe( $namespace, $name );
2035                 self::checkTitle( $title, $name );
2036                 return $title->getLocalURL( $urlaction );
2037         }
2038
2039         /* these return an array with the 'href' and boolean 'exists' */
2040         static function makeUrlDetails( $name, $urlaction = '' ) {
2041                 $title = Title::newFromText( $name );
2042                 self::checkTitle( $title, $name );
2043                 return array(
2044                         'href' => $title->getLocalURL( $urlaction ),
2045                         'exists' => $title->getArticleID() != 0 ? true : false
2046                 );
2047         }
2048
2049         /**
2050          * Make URL details where the article exists (or at least it's convenient to think so)
2051          */
2052         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
2053                 $title = Title::newFromText( $name );
2054                 self::checkTitle( $title, $name );
2055                 return array(
2056                         'href' => $title->getLocalURL( $urlaction ),
2057                         'exists' => true
2058                 );
2059         }
2060
2061         # make sure we have some title to operate on
2062         static function checkTitle( &$title, $name ) {
2063                 if( !is_object( $title ) ) {
2064                         $title = Title::newFromText( $name );
2065                         if( !is_object( $title ) ) {
2066                                 $title = Title::newFromText( '--error: link target missing--' );
2067                         }
2068                 }
2069         }
2070
2071         /**
2072          * Build an array that represents the sidebar(s), the navigation bar among them
2073          *
2074          * @return array
2075          */
2076         function buildSidebar() {
2077                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2078                 global $wgLang;
2079                 wfProfileIn( __METHOD__ );
2080
2081                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2082
2083                 if ( $wgEnableSidebarCache ) {
2084                         $cachedsidebar = $parserMemc->get( $key );
2085                         if ( $cachedsidebar ) {
2086                                 wfProfileOut( __METHOD__ );
2087                                 return $cachedsidebar;
2088                         }
2089                 }
2090
2091                 $bar = array();
2092                 $this->addToSidebar( $bar, 'sidebar' );
2093
2094                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2095                 if ( $wgEnableSidebarCache ) {
2096                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2097                 }
2098                 wfProfileOut( __METHOD__ );
2099                 return $bar;
2100         }
2101         /**
2102          * Add content from a sidebar system message
2103          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
2104          *
2105          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
2106          *
2107          * @param &$bar array
2108          * @param $message String
2109          */
2110         function addToSidebar( &$bar, $message ) {
2111                 $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
2112         }
2113
2114         /**
2115          * Add content from plain text
2116          * @since 1.17
2117          * @param &$bar array
2118          * @param $text string
2119          */
2120         function addToSidebarPlain( &$bar, $text ) {
2121                 $lines = explode( "\n", $text );
2122                 $heading = '';
2123                 foreach( $lines as $line ) {
2124                         if( strpos( $line, '*' ) !== 0 ) {
2125                                 continue;
2126                         }
2127                         if( strpos( $line, '**') !== 0 ) {
2128                                 $heading = trim( $line, '* ' );
2129                                 if( !array_key_exists( $heading, $bar ) ) {
2130                                         $bar[$heading] = array();
2131                                 }
2132                         } else {
2133                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2134                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2135                                         $link = wfMsgForContent( $line[0] );
2136                                         if( $link == '-' ) {
2137                                                 continue;
2138                                         }
2139
2140                                         $text = wfMsgExt( $line[1], 'parsemag' );
2141                                         if( wfEmptyMsg( $line[1], $text ) ) {
2142                                                 $text = $line[1];
2143                                         }
2144                                         if( wfEmptyMsg( $line[0], $link ) ) {
2145                                                 $link = $line[0];
2146                                         }
2147
2148                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2149                                                 $href = $link;
2150                                         } else {
2151                                                 $title = Title::newFromText( $link );
2152                                                 if ( $title ) {
2153                                                         $title = $title->fixSpecialName();
2154                                                         $href = $title->getLocalURL();
2155                                                 } else {
2156                                                         $href = 'INVALID-TITLE';
2157                                                 }
2158                                         }
2159
2160                                         $bar[$heading][] = array(
2161                                                 'text' => $text,
2162                                                 'href' => $href,
2163                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2164                                                 'active' => false
2165                                         );
2166                                 } else {
2167                                         continue;
2168                                 }
2169                         }
2170                 }
2171         }
2172
2173         /**
2174          * Should we include common/wikiprintable.css?  Skins that have their own
2175          * print stylesheet should override this and return false.  (This is an
2176          * ugly hack to get Monobook to play nicely with
2177          * OutputPage::headElement().)
2178          *
2179          * @return bool
2180          */
2181         public function commonPrintStylesheet() {
2182                 return true;
2183         }
2184
2185         /**
2186          * Gets new talk page messages for the current user.
2187          * @return MediaWiki message or if no new talk page messages, nothing
2188          */
2189         function getNewtalks() {
2190                 global $wgUser, $wgOut;
2191                 $newtalks = $wgUser->getNewMessageLinks();
2192
2193                 if( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
2194                         $userTitle = $this->mUser->getUserPage();
2195                         $userTalkTitle = $userTitle->getTalkPage();
2196
2197                         if( !$userTalkTitle->equals( $this->mTitle ) ) {
2198                                 $newMessagesLink = $this->link(
2199                                         $userTalkTitle,
2200                                         wfMsgHtml( 'newmessageslink' ),
2201                                         array(),
2202                                         array( 'redirect' => 'no' ),
2203                                         array( 'known', 'noclasses' )
2204                                 );
2205
2206                                 $newMessagesDiffLink = $this->link(
2207                                         $userTalkTitle,
2208                                         wfMsgHtml( 'newmessagesdifflink' ),
2209                                         array(),
2210                                         array( 'diff' => 'cur' ),
2211                                         array( 'known', 'noclasses' )
2212                                 );
2213
2214                                 $ntl = wfMsg(
2215                                         'youhavenewmessages',
2216                                         $newMessagesLink,
2217                                         $newMessagesDiffLink
2218                                 );
2219                                 # Disable Squid cache
2220                                 $wgOut->setSquidMaxage( 0 );
2221                         }
2222                 } elseif( count( $newtalks ) ) {
2223                         // _>" " for BC <= 1.16
2224                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
2225                         $msgs = array();
2226                         foreach( $newtalks as $newtalk ) {
2227                                 $msgs[] = Xml::element(
2228                                         'a',
2229                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
2230                                 );
2231                         }
2232                         $parts = implode( $sep, $msgs );
2233                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
2234                         $wgOut->setSquidMaxage( 0 );
2235                 } else {
2236                         $ntl = '';
2237                 }
2238                 return $ntl;
2239         }
2240
2241 }