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 $skinsInitialised = false;
  43
  44                 if ( !$skinsInitialised ) {
  45                         # Get a list of available skins
  46                         # Build using the regular expression '^(.*).php$'
  47                         # Array keys are all lower case, array value keep the case used by filename
  48                         #
  49                         wfProfileIn( __METHOD__ . '-init' );
  50
  51                         global $wgStyleDirectory;
  52
  53                         $skinDir = dir( $wgStyleDirectory );
  54
  55                         # while code from www.php.net
  56                         while ( false !== ( $file = $skinDir->read() ) ) {
  57                                 // Skip non-PHP files, hidden files, and '.dep' includes
  58                                 $matches = array();
  59
  60                                 if ( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  61                                         $aSkin = $matches[1];
  62                                         $wgValidSkinNames[strtolower( $aSkin )] = $aSkin;
  63                                 }
  64                         }
  65                         $skinDir->close();
  66                         $skinsInitialised = true;
  67                         wfProfileOut( __METHOD__ . '-init' );
  68                 }
  69                 return $wgValidSkinNames;
  70         }
  71
  72         /**
  73          * Fetch the list of usable skins in regards to $wgSkipSkins.
  74          * Useful for Special:Preferences and other places where you
  75          * only want to show skins users _can_ use.
  76          * @return array of strings
  77          */
  78         public static function getUsableSkins() {
  79                 global $wgSkipSkins;
  80
  81                 $usableSkins = self::getSkinNames();
  82
  83                 foreach ( $wgSkipSkins as $skip ) {
  84                         unset( $usableSkins[$skip] );
  85                 }
  86
  87                 return $usableSkins;
  88         }
  89
  90         /**
  91          * Normalize a skin preference value to a form that can be loaded.
  92          * If a skin can't be found, it will fall back to the configured
  93          * default (or the old 'Classic' skin if that's broken).
  94          * @param $key String: 'monobook', 'standard', etc.
  95          * @return string
  96          */
  97         static function normalizeKey( $key ) {
  98                 global $wgDefaultSkin;
  99
 100                 $skinNames = Skin::getSkinNames();
 101
 102                 if ( $key == '' ) {
 103                         // Don't return the default immediately;
 104                         // in a misconfiguration we need to fall back.
 105                         $key = $wgDefaultSkin;
 106                 }
 107
 108                 if ( isset( $skinNames[$key] ) ) {
 109                         return $key;
 110                 }
 111
 112                 // Older versions of the software used a numeric setting
 113                 // in the user preferences.
 114                 $fallback = array(
 115                         0 => $wgDefaultSkin,
 116                         1 => 'nostalgia',
 117                         2 => 'cologneblue'
 118                 );
 119
 120                 if ( isset( $fallback[$key] ) ) {
 121                         $key = $fallback[$key];
 122                 }
 123
 124                 if ( isset( $skinNames[$key] ) ) {
 125                         return $key;
 126                 } else if ( isset( $skinNames[$wgDefaultSkin] ) ) {
 127                         return $wgDefaultSkin;
 128                 } else {
 129                         return 'vector';
 130                 }
 131         }
 132
 133         /**
 134          * Factory method for loading a skin of a given type
 135          * @param $key String: 'monobook', 'standard', etc.
 136          * @return Skin
 137          */
 138         static function &newFromKey( $key ) {
 139                 global $wgStyleDirectory;
 140
 141                 $key = Skin::normalizeKey( $key );
 142
 143                 $skinNames = Skin::getSkinNames();
 144                 $skinName = $skinNames[$key];
 145                 $className = 'Skin' . ucfirst( $key );
 146
 147                 # Grab the skin class and initialise it.
 148                 if ( !class_exists( $className ) ) {
 149                         // Preload base classes to work around APC/PHP5 bug
 150                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 151
 152                         if ( file_exists( $deps ) ) {
 153                                 include_once( $deps );
 154                         }
 155                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 156
 157                         # Check if we got if not failback to default skin
 158                         if ( !class_exists( $className ) ) {
 159                                 # DO NOT die if the class isn't found. This breaks maintenance
 160                                 # scripts and can cause a user account to be unrecoverable
 161                                 # except by SQL manipulation if a previously valid skin name
 162                                 # is no longer valid.
 163                                 wfDebug( "Skin class does not exist: $className\n" );
 164                                 $className = 'SkinVector';
 165                                 require_once( "{$wgStyleDirectory}/Vector.php" );
 166                         }
 167                 }
 168                 $skin = new $className;
 169                 return $skin;
 170         }
 171
 172         /** @return string path to the skin stylesheet */
 173         function getStylesheet() {
 174                 return 'common/wikistandard.css';
 175         }
 176
 177         /** @return string skin name */
 178         public function getSkinName() {
 179                 return $this->skinname;
 180         }
 181
 182         function qbSetting() {
 183                 global $wgOut, $wgUser;
 184
 185                 if ( $wgOut->isQuickbarSuppressed() ) {
 186                         return 0;
 187                 }
 188
 189                 $q = $wgUser->getOption( 'quickbar', 0 );
 190
 191                 return $q;
 192         }
 193
 194         function initPage( OutputPage $out ) {
 195                 global $wgFavicon, $wgAppleTouchIcon;
 196
 197                 wfProfileIn( __METHOD__ );
 198
 199                 # Generally the order of the favicon and apple-touch-icon links
 200                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 201                 # uses whichever one appears later in the HTML source. Make sure
 202                 # apple-touch-icon is specified first to avoid this.
 203                 if ( false !== $wgAppleTouchIcon ) {
 204                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 205                 }
 206
 207                 if ( false !== $wgFavicon ) {
 208                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 209                 }
 210
 211                 # OpenSearch description link
 212                 $out->addLink( array(
 213                         'rel' => 'search',
 214                         'type' => 'application/opensearchdescription+xml',
 215                         'href' => wfScript( 'opensearch_desc' ),
 216                         'title' => wfMsgForContent( 'opensearch-desc' ),
 217                 ) );
 218
 219                 $this->addMetadataLinks( $out );
 220
 221                 $this->mRevisionId = $out->mRevisionId;
 222
 223                 $this->preloadExistence();
 224
 225                 wfProfileOut( __METHOD__ );
 226         }
 227
 228         /**
 229          * Preload the existence of three commonly-requested pages in a single query
 230          */
 231         function preloadExistence() {
 232                 global $wgUser;
 233
 234                 // User/talk link
 235                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 236
 237                 // Other tab link
 238                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 239                         // nothing
 240                 } elseif ( $this->mTitle->isTalkPage() ) {
 241                         $titles[] = $this->mTitle->getSubjectPage();
 242                 } else {
 243                         $titles[] = $this->mTitle->getTalkPage();
 244                 }
 245
 246                 $lb = new LinkBatch( $titles );
 247                 $lb->execute();
 248         }
 249
 250         /**
 251          * Adds metadata links (Creative Commons/Dublin Core/copyright) to the HTML
 252          * output.
 253          * @param $out Object: instance of OutputPage
 254          */
 255         function addMetadataLinks( OutputPage $out ) {
 256                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 257                 global $wgRightsPage, $wgRightsUrl;
 258
 259                 if ( $out->isArticleRelated() ) {
 260                         # note: buggy CC software only reads first "meta" link
 261                         if ( $wgEnableCreativeCommonsRdf ) {
 262                                 $out->addMetadataLink( array(
 263                                         'title' => 'Creative Commons',
 264                                         'type' => 'application/rdf+xml',
 265                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 266                                 );
 267                         }
 268
 269                         if ( $wgEnableDublinCoreRdf ) {
 270                                 $out->addMetadataLink( array(
 271                                         'title' => 'Dublin Core',
 272                                         'type' => 'application/rdf+xml',
 273                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 274                                 );
 275                         }
 276                 }
 277                 $copyright = '';
 278                 if ( $wgRightsPage ) {
 279                         $copy = Title::newFromText( $wgRightsPage );
 280
 281                         if ( $copy ) {
 282                                 $copyright = $copy->getLocalURL();
 283                         }
 284                 }
 285
 286                 if ( !$copyright && $wgRightsUrl ) {
 287                         $copyright = $wgRightsUrl;
 288                 }
 289
 290                 if ( $copyright ) {
 291                         $out->addLink( array(
 292                                 'rel' => 'copyright',
 293                                 'href' => $copyright )
 294                         );
 295                 }
 296         }
 297
 298         /**
 299          * Set some local variables
 300          */
 301         protected function setMembers() {
 302                 global $wgUser;
 303                 $this->mUser = $wgUser;
 304                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 305                 $this->usercss = false;
 306         }
 307
 308         /**
 309          * Set the title
 310          * @param $t Title object to use
 311          */
 312         public function setTitle( $t ) {
 313                 $this->mTitle = $t;
 314         }
 315
 316         /** Get the title */
 317         public function getTitle() {
 318                 return $this->mTitle;
 319         }
 320
 321         /**
 322          * Outputs the HTML generated by other functions.
 323          * @param $out Object: instance of OutputPage
 324          */
 325         function outputPage( OutputPage $out ) {
 326                 global $wgDebugComments;
 327                 wfProfileIn( __METHOD__ );
 328
 329                 $this->setMembers();
 330                 $this->initPage( $out );
 331
 332                 // See self::afterContentHook() for documentation
 333                 $afterContent = $this->afterContentHook();
 334
 335                 $out->out( $out->headElement( $this ) );
 336
 337                 if ( $wgDebugComments ) {
 338                         $out->out( "<!-- Wiki debugging output:\n" .
 339                           $out->mDebugtext . "-->\n" );
 340                 }
 341
 342                 $out->out( $this->beforeContent() );
 343
 344                 $out->out( $out->mBodytext . "\n" );
 345
 346                 $out->out( $this->afterContent() );
 347
 348                 $out->out( $afterContent );
 349
 350                 $out->out( $this->bottomScripts( $out ) );
 351
 352                 $out->out( wfReportTime() );
 353
 354                 $out->out( "\n</body></html>" );
 355                 wfProfileOut( __METHOD__ );
 356         }
 357
 358         static function makeVariablesScript( $data ) {
 359                 if ( $data ) {
 360                         return Html::inlineScript( 'mediaWiki.config.set(' . json_encode( $data ) . ');' );
 361                 } else {
 362                         return '';
 363                 }
 364         }
 365
 366         /**
 367          * Make a <script> tag containing global variables
 368          * @param $skinName string Name of the skin
 369          * The odd calling convention is for backwards compatibility
 370          * @todo FIXME: Make this not depend on $wgTitle!
 371          */
 372         static function makeGlobalVariablesScript( $skinName ) {
 373                 if ( is_array( $skinName ) ) {
 374                         # Weird back-compat stuff.
 375                         $skinName = $skinName['skinname'];
 376                 }
 377
 378                 global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
 379                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 380                 global $wgOut, $wgArticle;
 381                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 382                 global $wgUseAjax, $wgAjaxWatch;
 383                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 384                 global $wgRestrictionTypes;
 385                 global $wgDBname, $wgEnableMWSuggest;
 386                 global $wgSitename;
 387
 388                 $ns = $wgTitle->getNamespace();
 389                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 390                 $separatorTransTable = $wgContLang->separatorTransformTable();
 391                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 392                 $compactSeparatorTransTable = array(
 393                         implode( "\t", array_keys( $separatorTransTable ) ),
 394                         implode( "\t", $separatorTransTable ),
 395                 );
 396                 $digitTransTable = $wgContLang->digitTransformTable();
 397                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 398                 $compactDigitTransTable = array(
 399                         implode( "\t", array_keys( $digitTransTable ) ),
 400                         implode( "\t", $digitTransTable ),
 401                 );
 402
 403                 $mainPage = Title::newMainPage();
 404                 $vars = array(
 405                         'skin' => $skinName,
 406                         'stylepath' => $wgStylePath,
 407                         'wgUrlProtocols' => wfUrlProtocols(),
 408                         'wgArticlePath' => $wgArticlePath,
 409                         'wgScriptPath' => $wgScriptPath,
 410                         'wgScriptExtension' => $wgScriptExtension,
 411                         'wgScript' => $wgScript,
 412                         'wgVariantArticlePath' => $wgVariantArticlePath,
 413                         'wgActionPaths' => (object)$wgActionPaths,
 414                         'wgServer' => $wgServer,
 415                         'wgCanonicalNamespace' => $nsname,
 416                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 417                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 418                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 419                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 420                         'wgTitle' => $wgTitle->getText(),
 421                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 422                         'wgArticleId' => $wgTitle->getArticleId(),
 423                         'wgIsArticle' => $wgOut->isArticle(),
 424                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 425                         'wgUserGroups' => $wgUser->getEffectiveGroups(),
 426                         'wgUserLanguage' => $wgLang->getCode(),
 427                         'wgContentLanguage' => $wgContLang->getCode(),
 428                         'wgBreakFrames' => $wgBreakFrames,
 429                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 430                         'wgVersion' => $wgVersion,
 431                         'wgEnableAPI' => $wgEnableAPI,
 432                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 433                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 434                         'wgDigitTransformTable' => $compactDigitTransTable,
 435                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 436                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 437                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 438                         'wgSiteName' => $wgSitename,
 439                         'wgCategories' => $wgOut->getCategories(),
 440                 );
 441
 442                 if ( $wgContLang->hasVariants() ) {
 443                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 444                 }
 445
 446                 // if on upload page output the extension list & js_upload
 447                 if ( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) == 'Upload' ) {
 448                         global $wgFileExtensions;
 449                         $vars['wgFileExtensions'] = $wgFileExtensions;
 450                 }
 451
 452                 if ( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ) {
 453                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 454                         $vars['wgDBname'] = $wgDBname;
 455                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 456                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 457                 }
 458
 459                 foreach ( $wgRestrictionTypes as $type ) {
 460                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 461                 }
 462
 463                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 464                         $msgs = (object)array();
 465
 466                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching',
 467                                 'tooltip-ca-watch', 'tooltip-ca-unwatch' ) as $msgName ) {
 468                                 $msgs-> { $msgName . 'Msg' } = wfMsg( $msgName );
 469                         }
 470                         $vars['wgAjaxWatch'] = $msgs;
 471                 }
 472
 473                 // Allow extensions to add their custom variables to the global JS variables
 474                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 475
 476                 return self::makeVariablesScript( $vars );
 477         }
 478
 479         /**
 480          * To make it harder for someone to slip a user a fake
 481          * user-JavaScript or user-CSS preview, a random token
 482          * is associated with the login session. If it's not
 483          * passed back with the preview request, we won't render
 484          * the code.
 485          *
 486          * @param $action String: 'edit', 'submit' etc.
 487          * @return bool
 488          */
 489         public function userCanPreview( $action ) {
 490                 global $wgRequest, $wgUser;
 491
 492                 if ( $action != 'submit' ) {
 493                         return false;
 494                 }
 495                 if ( !$wgRequest->wasPosted() ) {
 496                         return false;
 497                 }
 498                 if ( !$this->mTitle->userCanEditCssSubpage() ) {
 499                         return false;
 500                 }
 501                 if ( !$this->mTitle->userCanEditJsSubpage() ) {
 502                         return false;
 503                 }
 504
 505                 return $wgUser->matchEditToken(
 506                         $wgRequest->getVal( 'wpEditToken' ) );
 507         }
 508
 509         /**
 510          * Generated JavaScript action=raw&gen=js
 511          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 512          * nated together.  For some bizarre reason, it does *not* return any
 513          * custom user JS from subpages.  Huh?
 514          *
 515          * There's absolutely no reason to have separate Monobook/Common JSes.
 516          * Any JS that cares can just check the skin variable generated at the
 517          * top.  For now Monobook.js will be maintained, but it should be consi-
 518          * dered deprecated.
 519          *
 520          * @param $skinName String: If set, overrides the skin name
 521          * @return string
 522          */
 523         public function generateUserJs( $skinName = null ) {
 524                 global $wgStylePath;
 525
 526                 wfProfileIn( __METHOD__ );
 527
 528                 if ( !$skinName ) {
 529                         $skinName = $this->getSkinName();
 530                 }
 531
 532                 $s = "/* generated javascript */\n";
 533                 $s .= "var skin = '" . Xml::escapeJsString( $skinName ) . "';\n";
 534                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 535                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 536
 537                 $commonJs = wfMsgExt( 'common.js', 'content' );
 538
 539                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 540                         $s .= $commonJs;
 541                 }
 542
 543                 $s .= "\n\n/* MediaWiki:" . ucfirst( $skinName ) . ".js */\n";
 544
 545                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 546                 // by checking for default message content
 547                 $msgKey = ucfirst( $skinName ) . '.js';
 548                 $userJS = wfMsgExt( $msgKey, 'content' );
 549
 550                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 551                         $s .= $userJS;
 552                 }
 553
 554                 wfProfileOut( __METHOD__ );
 555                 return $s;
 556         }
 557
 558         /**
 559          * Generate user stylesheet for action=raw&gen=css
 560          */
 561         public function generateUserStylesheet() {
 562                 wfProfileIn( __METHOD__ );
 563
 564                 $s = "/* generated user stylesheet */\n" .
 565                         $this->reallyGenerateUserStylesheet();
 566
 567                 wfProfileOut( __METHOD__ );
 568                 return $s;
 569         }
 570
 571         /**
 572          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 573          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 574          */
 575         protected function reallyGenerateUserStylesheet() {
 576                 global $wgUser;
 577
 578                 $s = '';
 579
 580                 if ( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 581                         $underline = $undopt ? 'underline' : 'none';
 582                         $s .= "a { text-decoration: $underline; }\n";
 583                 }
 584
 585                 if ( $wgUser->getOption( 'highlightbroken' ) ) {
 586                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 587                 } else {
 588                         $s .= <<<CSS
 589 a.new, #quickbar a.new,
 590 a.stub, #quickbar a.stub {
 591         color: inherit;
 592 }
 593 a.new:after, #quickbar a.new:after {
 594         content: "?";
 595         color: #CC2200;
 596 }
 597 a.stub:after, #quickbar a.stub:after {
 598         content: "!";
 599         color: #772233;
 600 }
 601 CSS;
 602                 }
 603
 604                 if ( $wgUser->getOption( 'justify' ) ) {
 605                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 606                 }
 607
 608                 if ( !$wgUser->getOption( 'showtoc' ) ) {
 609                         $s .= "#toc { display: none; }\n";
 610                 }
 611
 612                 if ( !$wgUser->getOption( 'editsection' ) ) {
 613                         $s .= ".editsection { display: none; }\n";
 614                 }
 615
 616                 $fontstyle = $wgUser->getOption( 'editfont' );
 617
 618                 if ( $fontstyle !== 'default' ) {
 619                         $s .= "textarea { font-family: $fontstyle; }\n";
 620                 }
 621
 622                 return $s;
 623         }
 624
 625         /**
 626          * @private
 627          */
 628         function setupUserCss( OutputPage $out ) {
 629                 global $wgRequest, $wgUser;
 630                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage;
 631
 632                 wfProfileIn( __METHOD__ );
 633
 634                 $this->setupSkinUserCss( $out );
 635
 636                 $siteargs = array(
 637                         'action' => 'raw',
 638                         'maxage' => $wgSquidMaxage,
 639                 );
 640
 641                 // Add any extension CSS
 642                 foreach ( $out->getExtStyle() as $url ) {
 643                         $out->addStyle( $url );
 644                 }
 645
 646                 // If we use the site's dynamic CSS, throw that in, too
 647                 // Per-site custom styles
 648                 if ( $wgUseSiteCss ) {
 649                         $out->addModuleStyles( 'site' );
 650                 }
 651
 652                 global $wgAllowUserCssPrefs;
 653
 654                 if ( $wgAllowUserCssPrefs ) {
 655                         if ( $wgUser->isLoggedIn() ) {
 656                                 // Ensure that logged-in users' generated CSS isn't clobbered
 657                                 // by anons' publicly cacheable generated CSS.
 658                                 $siteargs['smaxage'] = '0';
 659                                 $siteargs['ts'] = $wgUser->mTouched;
 660                         }
 661
 662                         // Per-user styles based on preferences
 663                         $siteargs['gen'] = 'css';
 664
 665                         if ( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 666                                 $siteargs['useskin'] = $us;
 667                         }
 668
 669                         $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 670                 }
 671
 672                 // Per-user custom style pages
 673                 if ( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 674                         $action = $wgRequest->getVal( 'action' );
 675
 676                         # If we're previewing the CSS page, use it
 677                         if ( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 678                                 // @FIXME: properly escape the cdata!
 679                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 680                         } else {
 681                                 $names = array( 'common', $this->getSkinName() );
 682                                 foreach ( $names as $name ) {
 683                                         $out->addStyle( self::makeUrl(
 684                                                 $this->userpage . '/' . $name . '.css',
 685                                                 'action=raw&ctype=text/css' )
 686                                         );
 687                                 }
 688                         }
 689                 }
 690
 691                 wfProfileOut( __METHOD__ );
 692         }
 693
 694         /**
 695          * Get the query to generate a dynamic stylesheet
 696          *
 697          * @return array
 698          */
 699         public static function getDynamicStylesheetQuery() {
 700                 global $wgSquidMaxage;
 701
 702                 return array(
 703                                 'action' => 'raw',
 704                                 'maxage' => $wgSquidMaxage,
 705                                 'usemsgcache' => 'yes',
 706                                 'ctype' => 'text/css',
 707                                 'smaxage' => $wgSquidMaxage,
 708                         );
 709         }
 710
 711         /**
 712          * Add skin specific stylesheets
 713          * @param $out OutputPage
 714          */
 715         function setupSkinUserCss( OutputPage $out ) {
 716                 $out->addModuleStyles( 'mediawiki.legacy.shared' );
 717                 $out->addModuleStyles( 'mediawiki.legacy.oldshared' );
 718                 // TODO: When converting old skins to use ResourceLoader (or removing them) the following should be reconsidered
 719                 $out->addStyle( $this->getStylesheet() );
 720                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 721         }
 722
 723         function getPageClasses( $title ) {
 724                 $numeric = 'ns-' . $title->getNamespace();
 725
 726                 if ( $title->getNamespace() == NS_SPECIAL ) {
 727                         $type = 'ns-special';
 728                 } elseif ( $title->isTalkPage() ) {
 729                         $type = 'ns-talk';
 730                 } else {
 731                         $type = 'ns-subject';
 732                 }
 733
 734                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 735
 736                 return "$numeric $type $name";
 737         }
 738
 739         /**
 740          * URL to the logo
 741          */
 742         function getLogo() {
 743                 global $wgLogo;
 744                 return $wgLogo;
 745         }
 746
 747         /**
 748          * This will be called immediately after the <body> tag.  Split into
 749          * two functions to make it easier to subclass.
 750          */
 751         function beforeContent() {
 752                 return $this->doBeforeContent();
 753         }
 754
 755         function doBeforeContent() {
 756                 global $wgContLang;
 757                 wfProfileIn( __METHOD__ );
 758
 759                 $s = '';
 760                 $qb = $this->qbSetting();
 761
 762                 $langlinks = $this->otherLanguages();
 763                 if ( $langlinks ) {
 764                         $rows = 2;
 765                         $borderhack = '';
 766                 } else {
 767                         $rows = 1;
 768                         $langlinks = false;
 769                         $borderhack = 'class="top"';
 770                 }
 771
 772                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 773                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 774
 775                 $shove = ( $qb != 0 );
 776                 $left = ( $qb == 1 || $qb == 3 );
 777
 778                 if ( $wgContLang->isRTL() ) {
 779                         $left = !$left;
 780                 }
 781
 782                 if ( !$shove ) {
 783                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 784                                 $this->logoText() . '</td>';
 785                 } elseif ( $left ) {
 786                         $s .= $this->getQuickbarCompensator( $rows );
 787                 }
 788
 789                 $l = $wgContLang->alignStart();
 790                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 791
 792                 $s .= $this->topLinks();
 793                 $s .= '<p class="subtitle">' . $this->pageTitleLinks() . "</p>\n";
 794
 795                 $r = $wgContLang->alignEnd();
 796                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 797                 $s .= $this->nameAndLogin();
 798                 $s .= "\n<br />" . $this->searchForm() . '</td>';
 799
 800                 if ( $langlinks ) {
 801                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 802                 }
 803
 804                 if ( $shove && !$left ) { # Right
 805                         $s .= $this->getQuickbarCompensator( $rows );
 806                 }
 807
 808                 $s .= "</tr>\n</table>\n</div>\n";
 809                 $s .= "\n<div id='article'>\n";
 810
 811                 $notice = wfGetSiteNotice();
 812
 813                 if ( $notice ) {
 814                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 815                 }
 816                 $s .= $this->pageTitle();
 817                 $s .= $this->pageSubtitle();
 818                 $s .= $this->getCategories();
 819
 820                 wfProfileOut( __METHOD__ );
 821                 return $s;
 822         }
 823
 824         function getCategoryLinks() {
 825                 global $wgOut, $wgUseCategoryBrowser;
 826                 global $wgContLang, $wgUser;
 827
 828                 if ( count( $wgOut->mCategoryLinks ) == 0 ) {
 829                         return '';
 830                 }
 831
 832                 # Separator
 833                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 834
 835                 // Use Unicode bidi embedding override characters,
 836                 // to make sure links don't smash each other up in ugly ways.
 837                 $dir = $wgContLang->getDir();
 838                 $embed = "<span dir='$dir'>";
 839                 $pop = '</span>';
 840
 841                 $allCats = $wgOut->getCategoryLinks();
 842                 $s = '';
 843                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 844
 845                 if ( !empty( $allCats['normal'] ) ) {
 846                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 847
 848                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 849                         $s .= '<div id="mw-normal-catlinks">' .
 850                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 851                                 . $colon . $t . '</div>';
 852                 }
 853
 854                 # Hidden categories
 855                 if ( isset( $allCats['hidden'] ) ) {
 856                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 857                                 $class = 'mw-hidden-cats-user-shown';
 858                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 859                                 $class = 'mw-hidden-cats-ns-shown';
 860                         } else {
 861                                 $class = 'mw-hidden-cats-hidden';
 862                         }
 863
 864                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 865                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 866                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 867                                 '</div>';
 868                 }
 869
 870                 # optional 'dmoz-like' category browser. Will be shown under the list
 871                 # of categories an article belong to
 872                 if ( $wgUseCategoryBrowser ) {
 873                         $s .= '<br /><hr />';
 874
 875                         # get a big array of the parents tree
 876                         $parenttree = $this->mTitle->getParentCategoryTree();
 877                         # Skin object passed by reference cause it can not be
 878                         # accessed under the method subfunction drawCategoryBrowser
 879                         $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree, $this ) );
 880                         # Clean out bogus first entry and sort them
 881                         unset( $tempout[0] );
 882                         asort( $tempout );
 883                         # Output one per line
 884                         $s .= implode( "<br />\n", $tempout );
 885                 }
 886
 887                 return $s;
 888         }
 889
 890         /**
 891          * Render the array as a serie of links.
 892          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 893          * @param &skin Object: skin passed by reference
 894          * @return String separated by &gt;, terminate with "\n"
 895          */
 896         function drawCategoryBrowser( $tree, &$skin ) {
 897                 $return = '';
 898
 899                 foreach ( $tree as $element => $parent ) {
 900                         if ( empty( $parent ) ) {
 901                                 # element start a new list
 902                                 $return .= "\n";
 903                         } else {
 904                                 # grab the others elements
 905                                 $return .= $this->drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 906                         }
 907
 908                         # add our current element to the list
 909                         $eltitle = Title::newFromText( $element );
 910                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 911                 }
 912
 913                 return $return;
 914         }
 915
 916         function getCategories() {
 917                 $catlinks = $this->getCategoryLinks();
 918
 919                 $classes = 'catlinks';
 920
 921                 global $wgOut, $wgUser;
 922
 923                 // Check what we're showing
 924                 $allCats = $wgOut->getCategoryLinks();
 925                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 926                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 927
 928                 if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 929                         $classes .= ' catlinks-allhidden';
 930                 }
 931
 932                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 933         }
 934
 935         function getQuickbarCompensator( $rows = 1 ) {
 936                 return "<td width='152' rowspan='{$rows}'>&#160;</td>";
 937         }
 938
 939         /**
 940          * This runs a hook to allow extensions placing their stuff after content
 941          * and article metadata (e.g. categories).
 942          * Note: This function has nothing to do with afterContent().
 943          *
 944          * This hook is placed here in order to allow using the same hook for all
 945          * skins, both the SkinTemplate based ones and the older ones, which directly
 946          * use this class to get their data.
 947          *
 948          * The output of this function gets processed in SkinTemplate::outputPage() for
 949          * the SkinTemplate based skins, all other skins should directly echo it.
 950          *
 951          * Returns an empty string by default, if not changed by any hook function.
 952          */
 953         protected function afterContentHook() {
 954                 $data = '';
 955
 956                 if ( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
 957                         // adding just some spaces shouldn't toggle the output
 958                         // of the whole <div/>, so we use trim() here
 959                         if ( trim( $data ) != '' ) {
 960                                 // Doing this here instead of in the skins to
 961                                 // ensure that the div has the same ID in all
 962                                 // skins
 963                                 $data = "<div id='mw-data-after-content'>\n" .
 964                                         "\t$data\n" .
 965                                         "</div>\n";
 966                         }
 967                 } else {
 968                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 969                 }
 970
 971                 return $data;
 972         }
 973
 974         /**
 975          * Generate debug data HTML for displaying at the bottom of the main content
 976          * area.
 977          * @return String HTML containing debug data, if enabled (otherwise empty).
 978          */
 979         protected function generateDebugHTML() {
 980                 global $wgShowDebug, $wgOut;
 981
 982                 if ( $wgShowDebug ) {
 983                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 984                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 985                                 $listInternals . "</ul>\n";
 986                 }
 987
 988                 return '';
 989         }
 990
 991         private function formatDebugHTML( $debugText ) {
 992                 $lines = explode( "\n", $debugText );
 993                 $curIdent = 0;
 994                 $ret = '<li>';
 995
 996                 foreach ( $lines as $line ) {
 997                         $m = array();
 998                         $display = ltrim( $line );
 999                         $ident = strlen( $line ) - strlen( $display );
1000                         $diff = $ident - $curIdent;
1001
1002                         if ( $display == '' ) {
1003                                 $display = "\xc2\xa0";
1004                         }
1005
1006                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
1007                                 $ident = $curIdent;
1008                                 $diff = 0;
1009                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
1010                         } else {
1011                                 $display = htmlspecialchars( $display );
1012                         }
1013
1014                         if ( $diff < 0 ) {
1015                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
1016                         } elseif ( $diff == 0 ) {
1017                                 $ret .= "</li><li>\n";
1018                         } else {
1019                                 $ret .= str_repeat( "<ul><li>\n", $diff );
1020                         }
1021                         $ret .= $display . "\n";
1022
1023                         $curIdent = $ident;
1024                 }
1025
1026                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
1027
1028                 return $ret;
1029         }
1030
1031         /**
1032          * This gets called shortly before the </body> tag.
1033          * @return String HTML to be put before </body>
1034          */
1035         function afterContent() {
1036                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
1037                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
1038         }
1039
1040         /**
1041          * This gets called shortly before the </body> tag.
1042          * @param $out OutputPage object
1043          * @return String HTML-wrapped JS code to be put before </body>
1044          */
1045         function bottomScripts( $out ) {
1046                 $bottomScriptText = "\n" . $out->getHeadScripts( $this );
1047                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
1048
1049                 return $bottomScriptText;
1050         }
1051
1052         /** @return string Retrievied from HTML text */
1053         function printSource() {
1054                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
1055                 return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
1056         }
1057
1058         function printFooter() {
1059                 return "<p>" .  $this->printSource() .
1060                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
1061         }
1062
1063         /** overloaded by derived classes */
1064         function doAfterContent() {
1065                 return '</div></div>';
1066         }
1067
1068         function pageTitleLinks() {
1069                 global $wgOut, $wgUser, $wgRequest, $wgLang;
1070
1071                 $oldid = $wgRequest->getVal( 'oldid' );
1072                 $diff = $wgRequest->getVal( 'diff' );
1073                 $action = $wgRequest->getText( 'action' );
1074
1075                 $s[] = $this->printableLink();
1076                 $disclaimer = $this->disclaimerLink(); # may be empty
1077
1078                 if ( $disclaimer ) {
1079                         $s[] = $disclaimer;
1080                 }
1081
1082                 $privacy = $this->privacyLink(); # may be empty too
1083
1084                 if ( $privacy ) {
1085                         $s[] = $privacy;
1086                 }
1087
1088                 if ( $wgOut->isArticleRelated() ) {
1089                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1090                                 $name = $this->mTitle->getDBkey();
1091                                 $image = wfFindFile( $this->mTitle );
1092
1093                                 if ( $image ) {
1094                                         $link = htmlspecialchars( $image->getURL() );
1095                                         $style = $this->getInternalLinkAttributes( $link, $name );
1096                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1097                                 }
1098                         }
1099                 }
1100
1101                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1102                         $s[] .= $this->link(
1103                                         $this->mTitle,
1104                                         wfMsg( 'currentrev' ),
1105                                         array(),
1106                                         array(),
1107                                         array( 'known', 'noclasses' )
1108                         );
1109                 }
1110
1111                 if ( $wgUser->getNewtalk() ) {
1112                         # do not show "You have new messages" text when we are viewing our
1113                         # own talk page
1114                         if ( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1115                                 $tl = $this->link(
1116                                         $wgUser->getTalkPage(),
1117                                         wfMsgHtml( 'newmessageslink' ),
1118                                         array(),
1119                                         array( 'redirect' => 'no' ),
1120                                         array( 'known', 'noclasses' )
1121                                 );
1122
1123                                 $dl = $this->link(
1124                                         $wgUser->getTalkPage(),
1125                                         wfMsgHtml( 'newmessagesdifflink' ),
1126                                         array(),
1127                                         array( 'diff' => 'cur' ),
1128                                         array( 'known', 'noclasses' )
1129                                 );
1130                                 $s[] = '<strong>' . wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1131                                 # disable caching
1132                                 $wgOut->setSquidMaxage( 0 );
1133                                 $wgOut->enableClientCache( false );
1134                         }
1135                 }
1136
1137                 $undelete = $this->getUndeleteLink();
1138
1139                 if ( !empty( $undelete ) ) {
1140                         $s[] = $undelete;
1141                 }
1142
1143                 return $wgLang->pipeList( $s );
1144         }
1145
1146         function getUndeleteLink() {
1147                 global $wgUser, $wgLang, $wgRequest;
1148
1149                 $action = $wgRequest->getVal( 'action', 'view' );
1150
1151                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1152                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1153                         $n = $this->mTitle->isDeleted();
1154
1155                         if ( $n ) {
1156                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1157                                         $msg = 'thisisdeleted';
1158                                 } else {
1159                                         $msg = 'viewdeleted';
1160                                 }
1161
1162                                 return wfMsg(
1163                                         $msg,
1164                                         $this->link(
1165                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1166                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1167                                                 array(),
1168                                                 array(),
1169                                                 array( 'known', 'noclasses' )
1170                                         )
1171                                 );
1172                         }
1173                 }
1174
1175                 return '';
1176         }
1177
1178         function printableLink() {
1179                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1180
1181                 $s = array();
1182
1183                 if ( !$wgOut->isPrintable() ) {
1184                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1185                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1186                 }
1187
1188                 if ( $wgOut->isSyndicated() ) {
1189                         foreach ( $wgFeedClasses as $format => $class ) {
1190                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1191                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1192                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1193                         }
1194                 }
1195                 return $wgLang->pipeList( $s );
1196         }
1197
1198         /**
1199          * Gets the h1 element with the page title.
1200          * @return string
1201          */
1202         function pageTitle() {
1203                 global $wgOut;
1204                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1205                 return $s;
1206         }
1207
1208         function pageSubtitle() {
1209                 global $wgOut;
1210
1211                 $sub = $wgOut->getSubtitle();
1212
1213                 if ( $sub == '' ) {
1214                         global $wgExtraSubtitle;
1215                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1216                 }
1217
1218                 $subpages = $this->subPageSubtitle();
1219                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1220                 $s = "<p class='subtitle'>{$sub}</p>\n";
1221
1222                 return $s;
1223         }
1224
1225         function subPageSubtitle() {
1226                 $subpages = '';
1227
1228                 if ( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) ) {
1229                         return $subpages;
1230                 }
1231
1232                 global $wgOut;
1233
1234                 if ( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1235                         $ptext = $this->mTitle->getPrefixedText();
1236                         if ( preg_match( '/\//', $ptext ) ) {
1237                                 $links = explode( '/', $ptext );
1238                                 array_pop( $links );
1239                                 $c = 0;
1240                                 $growinglink = '';
1241                                 $display = '';
1242
1243                                 foreach ( $links as $link ) {
1244                                         $growinglink .= $link;
1245                                         $display .= $link;
1246                                         $linkObj = Title::newFromText( $growinglink );
1247
1248                                         if ( is_object( $linkObj ) && $linkObj->exists() ) {
1249                                                 $getlink = $this->link(
1250                                                         $linkObj,
1251                                                         htmlspecialchars( $display ),
1252                                                         array(),
1253                                                         array(),
1254                                                         array( 'known', 'noclasses' )
1255                                                 );
1256
1257                                                 $c++;
1258
1259                                                 if ( $c > 1 ) {
1260                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1261                                                 } else  {
1262                                                         $subpages .= '&lt; ';
1263                                                 }
1264
1265                                                 $subpages .= $getlink;
1266                                                 $display = '';
1267                                         } else {
1268                                                 $display .= '/';
1269                                         }
1270                                         $growinglink .= '/';
1271                                 }
1272                         }
1273                 }
1274
1275                 return $subpages;
1276         }
1277
1278         /**
1279          * Returns true if the IP should be shown in the header
1280          */
1281         function showIPinHeader() {
1282                 global $wgShowIPinHeader;
1283                 return $wgShowIPinHeader && session_id() != '';
1284         }
1285
1286         function nameAndLogin() {
1287                 global $wgUser, $wgLang, $wgContLang;
1288
1289                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1290
1291                 $ret = '';
1292
1293                 if ( $wgUser->isAnon() ) {
1294                         if ( $this->showIPinHeader() ) {
1295                                 $name = wfGetIP();
1296
1297                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1298                                         $wgLang->getNsText( NS_TALK ) );
1299
1300                                 $ret .= "$name ($talkLink)";
1301                         } else {
1302                                 $ret .= wfMsg( 'notloggedin' );
1303                         }
1304
1305                         $returnTo = $this->mTitle->getPrefixedDBkey();
1306                         $query = array();
1307
1308                         if ( $logoutPage != $returnTo ) {
1309                                 $query['returnto'] = $returnTo;
1310                         }
1311
1312                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1313                                 ? 'nav-login-createaccount'
1314                                 : 'login';
1315                         $ret .= "\n<br />" . $this->link(
1316                                 SpecialPage::getTitleFor( 'Userlogin' ),
1317                                 wfMsg( $loginlink ), array(), $query
1318                         );
1319                 } else {
1320                         $returnTo = $this->mTitle->getPrefixedDBkey();
1321                         $talkLink = $this->link( $wgUser->getTalkPage(),
1322                                 $wgLang->getNsText( NS_TALK ) );
1323
1324                         $ret .= $this->link( $wgUser->getUserPage(),
1325                                 htmlspecialchars( $wgUser->getName() ) );
1326                         $ret .= " ($talkLink)<br />";
1327                         $ret .= $wgLang->pipeList( array(
1328                                 $this->link(
1329                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1330                                         array(), array( 'returnto' => $returnTo )
1331                                 ),
1332                                 $this->specialLink( 'preferences' ),
1333                         ) );
1334                 }
1335
1336                 $ret = $wgLang->pipeList( array(
1337                         $ret,
1338                         $this->link(
1339                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1340                                 wfMsg( 'help' )
1341                         ),
1342                 ) );
1343
1344                 return $ret;
1345         }
1346
1347         function getSearchLink() {
1348                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1349                 return $searchPage->getLocalURL();
1350         }
1351
1352         function escapeSearchLink() {
1353                 return htmlspecialchars( $this->getSearchLink() );
1354         }
1355
1356         function searchForm() {
1357                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1358
1359                 $search = $wgRequest->getText( 'search' );
1360
1361                 $s = '<form id="searchform' . $this->searchboxes . '" name="search" class="inline" method="post" action="'
1362                   . $this->escapeSearchLink() . "\">\n"
1363                   . '<input type="text" id="searchInput' . $this->searchboxes . '" name="search" size="19" value="'
1364                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1365                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1366
1367                 if ( $wgUseTwoButtonsSearchForm ) {
1368                         $s .= '&#160;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1369                 } else {
1370                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1371                 }
1372
1373                 $s .= '</form>';
1374
1375                 // Ensure unique id's for search boxes made after the first
1376                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1377
1378                 return $s;
1379         }
1380
1381         function topLinks() {
1382                 global $wgOut;
1383
1384                 $s = array(
1385                         $this->mainPageLink(),
1386                         $this->specialLink( 'recentchanges' )
1387                 );
1388
1389                 if ( $wgOut->isArticleRelated() ) {
1390                         $s[] = $this->editThisPage();
1391                         $s[] = $this->historyLink();
1392                 }
1393
1394                 # Many people don't like this dropdown box
1395                 # $s[] = $this->specialPagesList();
1396
1397                 if ( $this->variantLinks() ) {
1398                         $s[] = $this->variantLinks();
1399                 }
1400
1401                 if ( $this->extensionTabLinks() ) {
1402                         $s[] = $this->extensionTabLinks();
1403                 }
1404
1405                 // @todo FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1406                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1407         }
1408
1409         /**
1410          * Compatibility for extensions adding functionality through tabs.
1411          * Eventually these old skins should be replaced with SkinTemplate-based
1412          * versions, sigh...
1413          * @return string
1414          */
1415         function extensionTabLinks() {
1416                 $tabs = array();
1417                 $out = '';
1418                 $s = array();
1419                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1420                 foreach ( $tabs as $tab ) {
1421                         $s[] = Xml::element( 'a',
1422                                 array( 'href' => $tab['href'] ),
1423                                 $tab['text'] );
1424                 }
1425
1426                 if ( count( $s ) ) {
1427                         global $wgLang;
1428
1429                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1430                         $out .= $wgLang->pipeList( $s );
1431                 }
1432
1433                 return $out;
1434         }
1435
1436         /**
1437          * Language/charset variant links for classic-style skins
1438          * @return string
1439          */
1440         function variantLinks() {
1441                 $s = '';
1442
1443                 /* show links to different language variants */
1444                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1445
1446                 $variants = $wgContLang->getVariants();
1447
1448                 if ( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1449                         foreach ( $variants as $code ) {
1450                                 $varname = $wgContLang->getVariantname( $code );
1451
1452                                 if ( $varname == 'disable' ) {
1453                                         continue;
1454                                 }
1455                                 $s = $wgLang->pipeList( array(
1456                                         $s,
1457                                         '<a href="' . $this->mTitle->escapeLocalURL( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1458                                 ) );
1459                         }
1460                 }
1461
1462                 return $s;
1463         }
1464
1465         function bottomLinks() {
1466                 global $wgOut, $wgUser, $wgUseTrackbacks;
1467                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1468
1469                 $s = '';
1470                 if ( $wgOut->isArticleRelated() ) {
1471                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1472
1473                         if ( $wgUser->isLoggedIn() ) {
1474                                 $element[] = $this->watchThisPage();
1475                         }
1476
1477                         $element[] = $this->talkLink();
1478                         $element[] = $this->historyLink();
1479                         $element[] = $this->whatLinksHere();
1480                         $element[] = $this->watchPageLinksLink();
1481
1482                         if ( $wgUseTrackbacks ) {
1483                                 $element[] = $this->trackbackLink();
1484                         }
1485
1486                         if (
1487                                 $this->mTitle->getNamespace() == NS_USER ||
1488                                 $this->mTitle->getNamespace() == NS_USER_TALK
1489                         ) {
1490                                 $id = User::idFromName( $this->mTitle->getText() );
1491                                 $ip = User::isIP( $this->mTitle->getText() );
1492
1493                                 # Both anons and non-anons have contributions list
1494                                 if ( $id || $ip ) {
1495                                         $element[] = $this->userContribsLink();
1496                                 }
1497
1498                                 if ( $this->showEmailUser( $id ) ) {
1499                                         $element[] = $this->emailUserLink();
1500                                 }
1501                         }
1502
1503                         $s = implode( $element, $sep );
1504
1505                         if ( $this->mTitle->getArticleId() ) {
1506                                 $s .= "\n<br />";
1507
1508                                 // Delete/protect/move links for privileged users
1509                                 if ( $wgUser->isAllowed( 'delete' ) ) {
1510                                         $s .= $this->deleteThisPage();
1511                                 }
1512
1513                                 if ( $wgUser->isAllowed( 'protect' ) ) {
1514                                         $s .= $sep . $this->protectThisPage();
1515                                 }
1516
1517                                 if ( $wgUser->isAllowed( 'move' ) ) {
1518                                         $s .= $sep . $this->moveThisPage();
1519                                 }
1520                         }
1521
1522                         $s .= "<br />\n" . $this->otherLanguages();
1523                 }
1524
1525                 return $s;
1526         }
1527
1528         function pageStats() {
1529                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1530                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1531
1532                 $oldid = $wgRequest->getVal( 'oldid' );
1533                 $diff = $wgRequest->getVal( 'diff' );
1534
1535                 if ( !$wgOut->isArticle() ) {
1536                         return '';
1537                 }
1538
1539                 if ( !$wgArticle instanceof Article ) {
1540                         return '';
1541                 }
1542
1543                 if ( isset( $oldid ) || isset( $diff ) ) {
1544                         return '';
1545                 }
1546
1547                 if ( 0 == $wgArticle->getID() ) {
1548                         return '';
1549                 }
1550
1551                 $s = '';
1552
1553                 if ( !$wgDisableCounters ) {
1554                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1555
1556                         if ( $count ) {
1557                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1558                         }
1559                 }
1560
1561                 if ( $wgMaxCredits != 0 ) {
1562                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1563                 } else {
1564                         $s .= $this->lastModified();
1565                 }
1566
1567                 if ( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1568                         $dbr = wfGetDB( DB_SLAVE );
1569                         $res = $dbr->select(
1570                                 'watchlist',
1571                                 array( 'COUNT(*) AS n' ),
1572                                 array(
1573                                         'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ),
1574                                         'wl_namespace' => $this->mTitle->getNamespace()
1575                                 ),
1576                                 __METHOD__
1577                         );
1578                         $x = $dbr->fetchObject( $res );
1579
1580                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1581                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1582                         );
1583                 }
1584
1585                 return $s . ' ' .  $this->getCopyright();
1586         }
1587
1588         function getCopyright( $type = 'detect' ) {
1589                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1590
1591                 if ( $type == 'detect' ) {
1592                         $diff = $wgRequest->getVal( 'diff' );
1593                         $isCur = $wgArticle && $wgArticle->isCurrent();
1594
1595                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1596                                 $type = 'history';
1597                         } else {
1598                                 $type = 'normal';
1599                         }
1600                 }
1601
1602                 if ( $type == 'history' ) {
1603                         $msg = 'history_copyright';
1604                 } else {
1605                         $msg = 'copyright';
1606                 }
1607
1608                 $out = '';
1609
1610                 if ( $wgRightsPage ) {
1611                         $title = Title::newFromText( $wgRightsPage );
1612                         $link = $this->linkKnown( $title, $wgRightsText );
1613                 } elseif ( $wgRightsUrl ) {
1614                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1615                 } elseif ( $wgRightsText ) {
1616                         $link = $wgRightsText;
1617                 } else {
1618                         # Give up now
1619                         return $out;
1620                 }
1621
1622                 // Allow for site and per-namespace customization of copyright notice.
1623                 $forContent = true;
1624
1625                 if ( isset( $wgArticle ) ) {
1626                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link, &$forContent ) );
1627                 }
1628
1629                 if ( $forContent ) {
1630                         $out .= wfMsgForContent( $msg, $link );
1631                 } else {
1632                         $out .= wfMsg( $msg, $link );
1633                 }
1634
1635                 return $out;
1636         }
1637
1638         function getCopyrightIcon() {
1639                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1640
1641                 $out = '';
1642
1643                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1644                         $out = $wgCopyrightIcon;
1645                 } elseif ( $wgRightsIcon ) {
1646                         $icon = htmlspecialchars( $wgRightsIcon );
1647
1648                         if ( $wgRightsUrl ) {
1649                                 $url = htmlspecialchars( $wgRightsUrl );
1650                                 $out .= '<a href="' . $url . '">';
1651                         }
1652
1653                         $text = htmlspecialchars( $wgRightsText );
1654                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1655
1656                         if ( $wgRightsUrl ) {
1657                                 $out .= '</a>';
1658                         }
1659                 }
1660
1661                 return $out;
1662         }
1663
1664         /**
1665          * Gets the powered by MediaWiki icon.
1666          * @return string
1667          */
1668         function getPoweredBy() {
1669                 global $wgStylePath;
1670
1671                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1672                 $img = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1673
1674                 return $img;
1675         }
1676
1677         function lastModified() {
1678                 global $wgLang, $wgArticle;
1679
1680                 if ( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest() ) {
1681                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1682                 } else {
1683                         $timestamp = $wgArticle->getTimestamp();
1684                 }
1685
1686                 if ( $timestamp ) {
1687                         $d = $wgLang->date( $timestamp, true );
1688                         $t = $wgLang->time( $timestamp, true );
1689                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1690                 } else {
1691                         $s = '';
1692                 }
1693
1694                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1695                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1696                 }
1697
1698                 return $s;
1699         }
1700
1701         function logoText( $align = '' ) {
1702                 if ( $align != '' ) {
1703                         $a = " align='{$align}'";
1704                 } else {
1705                         $a = '';
1706                 }
1707
1708                 $mp = wfMsg( 'mainpage' );
1709                 $mptitle = Title::newMainPage();
1710                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1711
1712                 $logourl = $this->getLogo();
1713                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1714
1715                 return $s;
1716         }
1717
1718         /**
1719          * Show a drop-down box of special pages
1720          */
1721         function specialPagesList() {
1722                 global $wgContLang, $wgServer, $wgRedirectScript;
1723
1724                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1725
1726                 foreach ( $pages as $name => $page ) {
1727                         $pages[$name] = $page->getDescription();
1728                 }
1729
1730                 $go = wfMsg( 'go' );
1731                 $sp = wfMsg( 'specialpages' );
1732                 $spp = $wgContLang->specialPage( 'Specialpages' );
1733
1734                 $s = '<form id="specialpages" method="get" ' .
1735                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1736                 $s .= "<select name=\"wpDropdown\">\n";
1737                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1738
1739
1740                 foreach ( $pages as $name => $desc ) {
1741                         $p = $wgContLang->specialPage( $name );
1742                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1743                 }
1744
1745                 $s .= "</select>\n";
1746                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1747                 $s .= "</form>\n";
1748
1749                 return $s;
1750         }
1751
1752         /**
1753          * Gets the link to the wiki's main page.
1754          * @return string
1755          */
1756         function mainPageLink() {
1757                 $s = $this->link(
1758                         Title::newMainPage(),
1759                         wfMsg( 'mainpage' ),
1760                         array(),
1761                         array(),
1762                         array( 'known', 'noclasses' )
1763                 );
1764
1765                 return $s;
1766         }
1767
1768         private function footerLink( $desc, $page ) {
1769                 // if the link description has been set to "-" in the default language,
1770                 if ( wfMsgForContent( $desc )  == '-' ) {
1771                         // then it is disabled, for all languages.
1772                         return '';
1773                 } else {
1774                         // Otherwise, we display the link for the user, described in their
1775                         // language (which may or may not be the same as the default language),
1776                         // but we make the link target be the one site-wide page.
1777                         $title = Title::newFromText( wfMsgForContent( $page ) );
1778
1779                         return $this->linkKnown(
1780                                 $title,
1781                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1782                         );
1783                 }
1784         }
1785
1786         /**
1787          * Gets the link to the wiki's privacy policy page.
1788          */
1789         function privacyLink() {
1790                 return $this->footerLink( 'privacy', 'privacypage' );
1791         }
1792
1793         /**
1794          * Gets the link to the wiki's about page.
1795          */
1796         function aboutLink() {
1797                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1798         }
1799
1800         /**
1801          * Gets the link to the wiki's general disclaimers page.
1802          */
1803         function disclaimerLink() {
1804                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1805         }
1806
1807         function editThisPage() {
1808                 global $wgOut;
1809
1810                 if ( !$wgOut->isArticleRelated() ) {
1811                         $s = wfMsg( 'protectedpage' );
1812                 } else {
1813                         if ( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1814                                 $t = wfMsg( 'editthispage' );
1815                         } elseif ( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1816                                 $t = wfMsg( 'create-this-page' );
1817                         } else {
1818                                 $t = wfMsg( 'viewsource' );
1819                         }
1820
1821                         $s = $this->link(
1822                                 $this->mTitle,
1823                                 $t,
1824                                 array(),
1825                                 $this->editUrlOptions(),
1826                                 array( 'known', 'noclasses' )
1827                         );
1828                 }
1829
1830                 return $s;
1831         }
1832
1833         /**
1834          * Return URL options for the 'edit page' link.
1835          * This may include an 'oldid' specifier, if the current page view is such.
1836          *
1837          * @return array
1838          * @private
1839          */
1840         function editUrlOptions() {
1841                 global $wgArticle;
1842
1843                 $options = array( 'action' => 'edit' );
1844
1845                 if ( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1846                         $options['oldid'] = intval( $this->mRevisionId );
1847                 }
1848
1849                 return $options;
1850         }
1851
1852         function deleteThisPage() {
1853                 global $wgUser, $wgRequest;
1854
1855                 $diff = $wgRequest->getVal( 'diff' );
1856
1857                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1858                         $t = wfMsg( 'deletethispage' );
1859
1860                         $s = $this->link(
1861                                 $this->mTitle,
1862                                 $t,
1863                                 array(),
1864                                 array( 'action' => 'delete' ),
1865                                 array( 'known', 'noclasses' )
1866                         );
1867                 } else {
1868                         $s = '';
1869                 }
1870
1871                 return $s;
1872         }
1873
1874         function protectThisPage() {
1875                 global $wgUser, $wgRequest;
1876
1877                 $diff = $wgRequest->getVal( 'diff' );
1878
1879                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed( 'protect' ) ) {
1880                         if ( $this->mTitle->isProtected() ) {
1881                                 $text = wfMsg( 'unprotectthispage' );
1882                                 $query = array( 'action' => 'unprotect' );
1883                         } else {
1884                                 $text = wfMsg( 'protectthispage' );
1885                                 $query = array( 'action' => 'protect' );
1886                         }
1887
1888                         $s = $this->link(
1889                                 $this->mTitle,
1890                                 $text,
1891                                 array(),
1892                                 $query,
1893                                 array( 'known', 'noclasses' )
1894                         );
1895                 } else {
1896                         $s = '';
1897                 }
1898
1899                 return $s;
1900         }
1901
1902         function watchThisPage() {
1903                 global $wgOut;
1904                 ++$this->mWatchLinkNum;
1905
1906                 if ( $wgOut->isArticleRelated() ) {
1907                         if ( $this->mTitle->userIsWatching() ) {
1908                                 $text = wfMsg( 'unwatchthispage' );
1909                                 $query = array( 'action' => 'unwatch' );
1910                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1911                         } else {
1912                                 $text = wfMsg( 'watchthispage' );
1913                                 $query = array( 'action' => 'watch' );
1914                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1915                         }
1916
1917                         $s = $this->link(
1918                                 $this->mTitle,
1919                                 $text,
1920                                 array( 'id' => $id ),
1921                                 $query,
1922                                 array( 'known', 'noclasses' )
1923                         );
1924                 } else {
1925                         $s = wfMsg( 'notanarticle' );
1926                 }
1927
1928                 return $s;
1929         }
1930
1931         function moveThisPage() {
1932                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1933                         return $this->link(
1934                                 SpecialPage::getTitleFor( 'Movepage' ),
1935                                 wfMsg( 'movethispage' ),
1936                                 array(),
1937                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1938                                 array( 'known', 'noclasses' )
1939                         );
1940                 } else {
1941                         // no message if page is protected - would be redundant
1942                         return '';
1943                 }
1944         }
1945
1946         function historyLink() {
1947                 return $this->link(
1948                         $this->mTitle,
1949                         wfMsgHtml( 'history' ),
1950                         array( 'rel' => 'archives' ),
1951                         array( 'action' => 'history' )
1952                 );
1953         }
1954
1955         function whatLinksHere() {
1956                 return $this->link(
1957                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1958                         wfMsgHtml( 'whatlinkshere' ),
1959                         array(),
1960                         array(),
1961                         array( 'known', 'noclasses' )
1962                 );
1963         }
1964
1965         function userContribsLink() {
1966                 return $this->link(
1967                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1968                         wfMsgHtml( 'contributions' ),
1969                         array(),
1970                         array(),
1971                         array( 'known', 'noclasses' )
1972                 );
1973         }
1974
1975         function showEmailUser( $id ) {
1976                 global $wgUser;
1977                 $targetUser = User::newFromId( $id );
1978                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1979                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1980         }
1981
1982         function emailUserLink() {
1983                 return $this->link(
1984                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1985                         wfMsg( 'emailuser' ),
1986                         array(),
1987                         array(),
1988                         array( 'known', 'noclasses' )
1989                 );
1990         }
1991
1992         function watchPageLinksLink() {
1993                 global $wgOut;
1994
1995                 if ( !$wgOut->isArticleRelated() ) {
1996                         return '(' . wfMsg( 'notanarticle' ) . ')';
1997                 } else {
1998                         return $this->link(
1999                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
2000                                 wfMsg( 'recentchangeslinked-toolbox' ),
2001                                 array(),
2002                                 array(),
2003                                 array( 'known', 'noclasses' )
2004                         );
2005                 }
2006         }
2007
2008         function trackbackLink() {
2009                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
2010                         . wfMsg( 'trackbacklink' ) . '</a>';
2011         }
2012
2013         function otherLanguages() {
2014                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
2015
2016                 if ( $wgHideInterlanguageLinks ) {
2017                         return '';
2018                 }
2019
2020                 $a = $wgOut->getLanguageLinks();
2021
2022                 if ( 0 == count( $a ) ) {
2023                         return '';
2024                 }
2025
2026                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
2027                 $first = true;
2028
2029                 if ( $wgContLang->isRTL() ) {
2030                         $s .= '<span dir="LTR">';
2031                 }
2032
2033                 foreach ( $a as $l ) {
2034                         if ( !$first ) {
2035                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
2036                         }
2037
2038                         $first = false;
2039
2040                         $nt = Title::newFromText( $l );
2041                         $url = $nt->escapeFullURL();
2042                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
2043                         $title = htmlspecialchars( $nt->getText() );
2044
2045                         if ( $text == '' ) {
2046                                 $text = $l;
2047                         }
2048
2049                         $style = $this->getExternalLinkAttributes();
2050                         $s .= "<a href=\"{$url}\" title=\"{$title}\"{$style}>{$text}</a>";
2051                 }
2052
2053                 if ( $wgContLang->isRTL() ) {
2054                         $s .= '</span>';
2055                 }
2056
2057                 return $s;
2058         }
2059
2060         function talkLink() {
2061                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
2062                         # No discussion links for special pages
2063                         return '';
2064                 }
2065
2066                 $linkOptions = array();
2067
2068                 if ( $this->mTitle->isTalkPage() ) {
2069                         $link = $this->mTitle->getSubjectPage();
2070                         switch( $link->getNamespace() ) {
2071                                 case NS_MAIN:
2072                                         $text = wfMsg( 'articlepage' );
2073                                         break;
2074                                 case NS_USER:
2075                                         $text = wfMsg( 'userpage' );
2076                                         break;
2077                                 case NS_PROJECT:
2078                                         $text = wfMsg( 'projectpage' );
2079                                         break;
2080                                 case NS_FILE:
2081                                         $text = wfMsg( 'imagepage' );
2082                                         # Make link known if image exists, even if the desc. page doesn't.
2083                                         if ( wfFindFile( $link ) )
2084                                                 $linkOptions[] = 'known';
2085                                         break;
2086                                 case NS_MEDIAWIKI:
2087                                         $text = wfMsg( 'mediawikipage' );
2088                                         break;
2089                                 case NS_TEMPLATE:
2090                                         $text = wfMsg( 'templatepage' );
2091                                         break;
2092                                 case NS_HELP:
2093                                         $text = wfMsg( 'viewhelppage' );
2094                                         break;
2095                                 case NS_CATEGORY:
2096                                         $text = wfMsg( 'categorypage' );
2097                                         break;
2098                                 default:
2099                                         $text = wfMsg( 'articlepage' );
2100                         }
2101                 } else {
2102                         $link = $this->mTitle->getTalkPage();
2103                         $text = wfMsg( 'talkpage' );
2104                 }
2105
2106                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
2107
2108                 return $s;
2109         }
2110
2111         function commentLink() {
2112                 global $wgOut;
2113
2114                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
2115                         return '';
2116                 }
2117
2118                 # __NEWSECTIONLINK___ changes behaviour here
2119                 # If it is present, the link points to this page, otherwise
2120                 # it points to the talk page
2121                 if ( $this->mTitle->isTalkPage() ) {
2122                         $title = $this->mTitle;
2123                 } elseif ( $wgOut->showNewSectionLink() ) {
2124                         $title = $this->mTitle;
2125                 } else {
2126                         $title = $this->mTitle->getTalkPage();
2127                 }
2128
2129                 return $this->link(
2130                         $title,
2131                         wfMsg( 'postcomment' ),
2132                         array(),
2133                         array(
2134                                 'action' => 'edit',
2135                                 'section' => 'new'
2136                         ),
2137                         array( 'known', 'noclasses' )
2138                 );
2139         }
2140
2141         function getUploadLink() {
2142                 global $wgUploadNavigationUrl;
2143
2144                 if ( $wgUploadNavigationUrl ) {
2145                         # Using an empty class attribute to avoid automatic setting of "external" class
2146                         return $this->makeExternalLink( $wgUploadNavigationUrl, wfMsgHtml( 'upload' ), false, null, array( 'class' => '' ) );
2147                 } else {
2148                         return $this->link(
2149                                 SpecialPage::getTitleFor( 'Upload' ),
2150                                 wfMsgHtml( 'upload' ),
2151                                 array(),
2152                                 array(),
2153                                 array( 'known', 'noclasses' )
2154                         );
2155                 }
2156         }
2157
2158         /* these are used extensively in SkinTemplate, but also some other places */
2159         static function makeMainPageUrl( $urlaction = '' ) {
2160                 $title = Title::newMainPage();
2161                 self::checkTitle( $title, '' );
2162
2163                 return $title->getLocalURL( $urlaction );
2164         }
2165
2166         static function makeSpecialUrl( $name, $urlaction = '' ) {
2167                 $title = SpecialPage::getTitleFor( $name );
2168                 return $title->getLocalURL( $urlaction );
2169         }
2170
2171         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
2172                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
2173                 return $title->getLocalURL( $urlaction );
2174         }
2175
2176         static function makeI18nUrl( $name, $urlaction = '' ) {
2177                 $title = Title::newFromText( wfMsgForContent( $name ) );
2178                 self::checkTitle( $title, $name );
2179                 return $title->getLocalURL( $urlaction );
2180         }
2181
2182         static function makeUrl( $name, $urlaction = '' ) {
2183                 $title = Title::newFromText( $name );
2184                 self::checkTitle( $title, $name );
2185
2186                 return $title->getLocalURL( $urlaction );
2187         }
2188
2189         /**
2190          * If url string starts with http, consider as external URL, else
2191          * internal
2192          */
2193         static function makeInternalOrExternalUrl( $name ) {
2194                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
2195                         return $name;
2196                 } else {
2197                         return self::makeUrl( $name );
2198                 }
2199         }
2200
2201         # this can be passed the NS number as defined in Language.php
2202         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
2203                 $title = Title::makeTitleSafe( $namespace, $name );
2204                 self::checkTitle( $title, $name );
2205
2206                 return $title->getLocalURL( $urlaction );
2207         }
2208
2209         /* these return an array with the 'href' and boolean 'exists' */
2210         static function makeUrlDetails( $name, $urlaction = '' ) {
2211                 $title = Title::newFromText( $name );
2212                 self::checkTitle( $title, $name );
2213
2214                 return array(
2215                         'href' => $title->getLocalURL( $urlaction ),
2216                         'exists' => $title->getArticleID() != 0 ? true : false
2217                 );
2218         }
2219
2220         /**
2221          * Make URL details where the article exists (or at least it's convenient to think so)
2222          */
2223         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
2224                 $title = Title::newFromText( $name );
2225                 self::checkTitle( $title, $name );
2226
2227                 return array(
2228                         'href' => $title->getLocalURL( $urlaction ),
2229                         'exists' => true
2230                 );
2231         }
2232
2233         # make sure we have some title to operate on
2234         static function checkTitle( &$title, $name ) {
2235                 if ( !is_object( $title ) ) {
2236                         $title = Title::newFromText( $name );
2237                         if ( !is_object( $title ) ) {
2238                                 $title = Title::newFromText( '--error: link target missing--' );
2239                         }
2240                 }
2241         }
2242
2243         /**
2244          * Build an array that represents the sidebar(s), the navigation bar among them
2245          *
2246          * @return array
2247          */
2248         function buildSidebar() {
2249                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2250                 global $wgLang;
2251                 wfProfileIn( __METHOD__ );
2252
2253                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2254
2255                 if ( $wgEnableSidebarCache ) {
2256                         $cachedsidebar = $parserMemc->get( $key );
2257                         if ( $cachedsidebar ) {
2258                                 wfProfileOut( __METHOD__ );
2259                                 return $cachedsidebar;
2260                         }
2261                 }
2262
2263                 $bar = array();
2264                 $this->addToSidebar( $bar, 'sidebar' );
2265
2266                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2267                 if ( $wgEnableSidebarCache ) {
2268                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2269                 }
2270
2271                 wfProfileOut( __METHOD__ );
2272                 return $bar;
2273         }
2274         /**
2275          * Add content from a sidebar system message
2276          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
2277          *
2278          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
2279          *
2280          * @param &$bar array
2281          * @param $message String
2282          */
2283         function addToSidebar( &$bar, $message ) {
2284                 $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
2285         }
2286
2287         /**
2288          * Add content from plain text
2289          * @since 1.17
2290          * @param &$bar array
2291          * @param $text string
2292          */
2293         function addToSidebarPlain( &$bar, $text ) {
2294                 $lines = explode( "\n", $text );
2295                 $wikiBar = array(); # We need to handle the wikitext on a different variable, to avoid trying to do an array operation on text, which would be a fatal error.
2296
2297                 $heading = '';
2298
2299                 foreach ( $lines as $line ) {
2300                         if ( strpos( $line, '*' ) !== 0 ) {
2301                                 continue;
2302                         }
2303
2304                         if ( strpos( $line, '**' ) !== 0 ) {
2305                                 $heading = trim( $line, '* ' );
2306                                 if ( !array_key_exists( $heading, $bar ) ) {
2307                                         $bar[$heading] = array();
2308                                 }
2309                         } else {
2310                                 $line = trim( $line, '* ' );
2311
2312                                 if ( strpos( $line, '|' ) !== false ) { // sanity check
2313                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
2314                                         $link = wfMsgForContent( $line[0] );
2315
2316                                         if ( $link == '-' ) {
2317                                                 continue;
2318                                         }
2319
2320                                         $text = wfMsgExt( $line[1], 'parsemag' );
2321
2322                                         if ( wfEmptyMsg( $line[1], $text ) ) {
2323                                                 $text = $line[1];
2324                                         }
2325
2326                                         if ( wfEmptyMsg( $line[0], $link ) ) {
2327                                                 $link = $line[0];
2328                                         }
2329
2330                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2331                                                 $href = $link;
2332                                         } else {
2333                                                 $title = Title::newFromText( $link );
2334
2335                                                 if ( $title ) {
2336                                                         $title = $title->fixSpecialName();
2337                                                         $href = $title->getLocalURL();
2338                                                 } else {
2339                                                         $href = 'INVALID-TITLE';
2340                                                 }
2341                                         }
2342
2343                                         $bar[$heading][] = array(
2344                                                 'text' => $text,
2345                                                 'href' => $href,
2346                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2347                                                 'active' => false
2348                                         );
2349                                 } else if ( ( substr( $line, 0, 2 ) == '{{' ) && ( substr( $line, -2 ) == '}}' ) ) {
2350                                         global $wgParser, $wgTitle;
2351
2352                                         $line = substr( $line, 2, strlen( $line ) - 4 );
2353
2354                                         if ( is_null( $wgParser->mOptions ) ) {
2355                                                 $wgParser->mOptions = new ParserOptions();
2356                                         }
2357
2358                                         $wgParser->mOptions->setEditSection( false );
2359                                         $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $wgParser->mOptions )->getText();
2360                                 } else {
2361                                         continue;
2362                                 }
2363                         }
2364                 }
2365
2366                 if ( count( $wikiBar ) > 0 ) {
2367                         $bar = array_merge( $bar, $wikiBar );
2368                 }
2369
2370                 return $bar;
2371         }
2372
2373         /**
2374          * Should we include common/wikiprintable.css?  Skins that have their own
2375          * print stylesheet should override this and return false.  (This is an
2376          * ugly hack to get Monobook to play nicely with
2377          * OutputPage::headElement().)
2378          *
2379          * @return bool
2380          */
2381         public function commonPrintStylesheet() {
2382                 return true;
2383         }
2384
2385         /**
2386          * Gets new talk page messages for the current user.
2387          * @return MediaWiki message or if no new talk page messages, nothing
2388          */
2389         function getNewtalks() {
2390                 global $wgUser, $wgOut;
2391
2392                 $newtalks = $wgUser->getNewMessageLinks();
2393                 $ntl = '';
2394
2395                 if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
2396                         $userTitle = $this->mUser->getUserPage();
2397                         $userTalkTitle = $userTitle->getTalkPage();
2398
2399                         if ( !$userTalkTitle->equals( $this->mTitle ) ) {
2400                                 $newMessagesLink = $this->link(
2401                                         $userTalkTitle,
2402                                         wfMsgHtml( 'newmessageslink' ),
2403                                         array(),
2404                                         array( 'redirect' => 'no' ),
2405                                         array( 'known', 'noclasses' )
2406                                 );
2407
2408                                 $newMessagesDiffLink = $this->link(
2409                                         $userTalkTitle,
2410                                         wfMsgHtml( 'newmessagesdifflink' ),
2411                                         array(),
2412                                         array( 'diff' => 'cur' ),
2413                                         array( 'known', 'noclasses' )
2414                                 );
2415
2416                                 $ntl = wfMsg(
2417                                         'youhavenewmessages',
2418                                         $newMessagesLink,
2419                                         $newMessagesDiffLink
2420                                 );
2421                                 # Disable Squid cache
2422                                 $wgOut->setSquidMaxage( 0 );
2423                         }
2424                 } elseif ( count( $newtalks ) ) {
2425                         // _>" " for BC <= 1.16
2426                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
2427                         $msgs = array();
2428
2429                         foreach ( $newtalks as $newtalk ) {
2430                                 $msgs[] = Xml::element(
2431                                         'a',
2432                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
2433                                 );
2434                         }
2435                         $parts = implode( $sep, $msgs );
2436                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
2437                         $wgOut->setSquidMaxage( 0 );
2438                 }
2439
2440                 return $ntl;
2441         }
2442 }