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 abstract class Skin extends ContextSource {
  19         protected $skinname = 'standard';
  20         protected $mRelevantTitle = null;
  21         protected $mRelevantUser = null;
  22
  23         /**
  24          * Fetch the set of available skins.
  25          * @return array of strings
  26          */
  27         static function getSkinNames() {
  28                 global $wgValidSkinNames;
  29                 static $skinsInitialised = false;
  30
  31                 if ( !$skinsInitialised || !count( $wgValidSkinNames ) ) {
  32                         # Get a list of available skins
  33                         # Build using the regular expression '^(.*).php$'
  34                         # Array keys are all lower case, array value keep the case used by filename
  35                         #
  36                         wfProfileIn( __METHOD__ . '-init' );
  37
  38                         global $wgStyleDirectory;
  39
  40                         $skinDir = dir( $wgStyleDirectory );
  41
  42                         # while code from www.php.net
  43                         while ( false !== ( $file = $skinDir->read() ) ) {
  44                                 // Skip non-PHP files, hidden files, and '.dep' includes
  45                                 $matches = array();
  46
  47                                 if ( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  48                                         $aSkin = $matches[1];
  49                                         $wgValidSkinNames[strtolower( $aSkin )] = $aSkin;
  50                                 }
  51                         }
  52                         $skinDir->close();
  53                         $skinsInitialised = true;
  54                         wfProfileOut( __METHOD__ . '-init' );
  55                 }
  56                 return $wgValidSkinNames;
  57         }
  58
  59         /**
  60          * Fetch the list of usable skins in regards to $wgSkipSkins.
  61          * Useful for Special:Preferences and other places where you
  62          * only want to show skins users _can_ use.
  63          * @return array of strings
  64          */
  65         public static function getUsableSkins() {
  66                 global $wgSkipSkins;
  67
  68                 $usableSkins = self::getSkinNames();
  69
  70                 foreach ( $wgSkipSkins as $skip ) {
  71                         unset( $usableSkins[$skip] );
  72                 }
  73
  74                 return $usableSkins;
  75         }
  76
  77         /**
  78          * Normalize a skin preference value to a form that can be loaded.
  79          * If a skin can't be found, it will fall back to the configured
  80          * default (or the old 'Classic' skin if that's broken).
  81          * @param $key String: 'monobook', 'standard', etc.
  82          * @return string
  83          */
  84         static function normalizeKey( $key ) {
  85                 global $wgDefaultSkin;
  86
  87                 $skinNames = Skin::getSkinNames();
  88
  89                 if ( $key == '' ) {
  90                         // Don't return the default immediately;
  91                         // in a misconfiguration we need to fall back.
  92                         $key = $wgDefaultSkin;
  93                 }
  94
  95                 if ( isset( $skinNames[$key] ) ) {
  96                         return $key;
  97                 }
  98
  99                 // Older versions of the software used a numeric setting
 100                 // in the user preferences.
 101                 $fallback = array(
 102                         0 => $wgDefaultSkin,
 103                         1 => 'nostalgia',
 104                         2 => 'cologneblue'
 105                 );
 106
 107                 if ( isset( $fallback[$key] ) ) {
 108                         $key = $fallback[$key];
 109                 }
 110
 111                 if ( isset( $skinNames[$key] ) ) {
 112                         return $key;
 113                 } elseif ( isset( $skinNames[$wgDefaultSkin] ) ) {
 114                         return $wgDefaultSkin;
 115                 } else {
 116                         return 'vector';
 117                 }
 118         }
 119
 120         /**
 121          * Factory method for loading a skin of a given type
 122          * @param $key String: 'monobook', 'standard', etc.
 123          * @return Skin
 124          */
 125         static function &newFromKey( $key ) {
 126                 global $wgStyleDirectory;
 127
 128                 $key = Skin::normalizeKey( $key );
 129
 130                 $skinNames = Skin::getSkinNames();
 131                 $skinName = $skinNames[$key];
 132                 $className = "Skin{$skinName}";
 133
 134                 # Grab the skin class and initialise it.
 135                 if ( !MWInit::classExists( $className ) ) {
 136
 137                         if ( !defined( 'MW_COMPILED' ) ) {
 138                                 // Preload base classes to work around APC/PHP5 bug
 139                                 $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 140                                 if ( file_exists( $deps ) ) {
 141                                         include_once( $deps );
 142                                 }
 143                                 require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 144                         }
 145
 146                         # Check if we got if not failback to default skin
 147                         if ( !MWInit::classExists( $className ) ) {
 148                                 # DO NOT die if the class isn't found. This breaks maintenance
 149                                 # scripts and can cause a user account to be unrecoverable
 150                                 # except by SQL manipulation if a previously valid skin name
 151                                 # is no longer valid.
 152                                 wfDebug( "Skin class does not exist: $className\n" );
 153                                 $className = 'SkinVector';
 154                                 if ( !defined( 'MW_COMPILED' ) ) {
 155                                         require_once( "{$wgStyleDirectory}/Vector.php" );
 156                                 }
 157                         }
 158                 }
 159                 $skin = new $className( $key );
 160                 return $skin;
 161         }
 162
 163         /** @return string skin name */
 164         public function getSkinName() {
 165                 return $this->skinname;
 166         }
 167
 168         /**
 169          * @param $out OutputPage
 170          */
 171         function initPage( OutputPage $out ) {
 172                 wfProfileIn( __METHOD__ );
 173
 174                 $this->preloadExistence();
 175
 176                 wfProfileOut( __METHOD__ );
 177         }
 178
 179         /**
 180          * Preload the existence of three commonly-requested pages in a single query
 181          */
 182         function preloadExistence() {
 183                 $user = $this->getUser();
 184
 185                 // User/talk link
 186                 $titles = array( $user->getUserPage(), $user->getTalkPage() );
 187
 188                 // Other tab link
 189                 if ( $this->getTitle()->isSpecialPage() ) {
 190                         // nothing
 191                 } elseif ( $this->getTitle()->isTalkPage() ) {
 192                         $titles[] = $this->getTitle()->getSubjectPage();
 193                 } else {
 194                         $titles[] = $this->getTitle()->getTalkPage();
 195                 }
 196
 197                 $lb = new LinkBatch( $titles );
 198                 $lb->setCaller( __METHOD__ );
 199                 $lb->execute();
 200         }
 201
 202         /**
 203          * Get the current revision ID
 204          *
 205          * @return Integer
 206          */
 207         public function getRevisionId() {
 208                 return $this->getOutput()->getRevisionId();
 209         }
 210
 211         /**
 212          * Whether the revision displayed is the latest revision of the page
 213          *
 214          * @return Boolean
 215          */
 216         public function isRevisionCurrent() {
 217                 $revID = $this->getRevisionId();
 218                 return $revID == 0 || $revID == $this->getTitle()->getLatestRevID();
 219         }
 220
 221         /**
 222          * Set the "relevant" title
 223          * @see self::getRelevantTitle()
 224          * @param $t Title object to use
 225          */
 226         public function setRelevantTitle( $t ) {
 227                 $this->mRelevantTitle = $t;
 228         }
 229
 230         /**
 231          * Return the "relevant" title.
 232          * A "relevant" title is not necessarily the actual title of the page.
 233          * Special pages like Special:MovePage use set the page they are acting on
 234          * as their "relevant" title, this allows the skin system to display things
 235          * such as content tabs which belong to to that page instead of displaying
 236          * a basic special page tab which has almost no meaning.
 237          *
 238          * @return Title
 239          */
 240         public function getRelevantTitle() {
 241                 if ( isset($this->mRelevantTitle) ) {
 242                         return $this->mRelevantTitle;
 243                 }
 244                 return $this->getTitle();
 245         }
 246
 247         /**
 248          * Set the "relevant" user
 249          * @see self::getRelevantUser()
 250          * @param $u User object to use
 251          */
 252         public function setRelevantUser( $u ) {
 253                 $this->mRelevantUser = $u;
 254         }
 255
 256         /**
 257          * Return the "relevant" user.
 258          * A "relevant" user is similar to a relevant title. Special pages like
 259          * Special:Contributions mark the user which they are relevant to so that
 260          * things like the toolbox can display the information they usually are only
 261          * able to display on a user's userpage and talkpage.
 262          * @return User
 263          */
 264         public function getRelevantUser() {
 265                 if ( isset($this->mRelevantUser) ) {
 266                         return $this->mRelevantUser;
 267                 }
 268                 $title = $this->getRelevantTitle();
 269                 if( $title->getNamespace() == NS_USER || $title->getNamespace() == NS_USER_TALK ) {
 270                         $rootUser = strtok( $title->getText(), '/' );
 271                         if ( User::isIP( $rootUser ) ) {
 272                                 $this->mRelevantUser = User::newFromName( $rootUser, false );
 273                         } else {
 274                                 $user = User::newFromName( $rootUser, false );
 275                                 if ( $user && $user->isLoggedIn() ) {
 276                                         $this->mRelevantUser = $user;
 277                                 }
 278                         }
 279                         return $this->mRelevantUser;
 280                 }
 281                 return null;
 282         }
 283
 284         /**
 285          * Outputs the HTML generated by other functions.
 286          * @param $out OutputPage
 287          */
 288         abstract function outputPage( OutputPage $out = null );
 289
 290         /**
 291          * @param $data array
 292          * @return string
 293          */
 294         static function makeVariablesScript( $data ) {
 295                 if ( $data ) {
 296                         return Html::inlineScript(
 297                                 ResourceLoader::makeLoaderConditionalScript( ResourceLoader::makeConfigSetScript( $data ) )
 298                         );
 299                 } else {
 300                         return '';
 301                 }
 302         }
 303
 304         /**
 305          * Get the query to generate a dynamic stylesheet
 306          *
 307          * @return array
 308          */
 309         public static function getDynamicStylesheetQuery() {
 310                 global $wgSquidMaxage;
 311
 312                 return array(
 313                                 'action' => 'raw',
 314                                 'maxage' => $wgSquidMaxage,
 315                                 'usemsgcache' => 'yes',
 316                                 'ctype' => 'text/css',
 317                                 'smaxage' => $wgSquidMaxage,
 318                         );
 319         }
 320
 321         /**
 322          * Add skin specific stylesheets
 323          * Calling this method with an $out of anything but the same OutputPage
 324          * inside ->getOutput() is deprecated. The $out arg is kept
 325          * for compatibility purposes with skins.
 326          * @param $out OutputPage
 327          * @delete
 328          */
 329         abstract function setupSkinUserCss( OutputPage $out );
 330
 331         /**
 332          * TODO: document
 333          * @param $title Title
 334          * @return String
 335          */
 336         function getPageClasses( $title ) {
 337                 $numeric = 'ns-' . $title->getNamespace();
 338
 339                 if ( $title->isSpecialPage() ) {
 340                         $type = 'ns-special';
 341                         // bug 23315: provide a class based on the canonical special page name without subpages
 342                         list( $canonicalName ) = SpecialPageFactory::resolveAlias( $title->getDBkey() );
 343                         if ( $canonicalName ) {
 344                                 $type .= ' ' . Sanitizer::escapeClass( "mw-special-$canonicalName" );
 345                         } else {
 346                                 $type .= ' mw-invalidspecialpage';
 347                         }
 348                 } elseif ( $title->isTalkPage() ) {
 349                         $type = 'ns-talk';
 350                 } else {
 351                         $type = 'ns-subject';
 352                 }
 353
 354                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 355
 356                 return "$numeric $type $name";
 357         }
 358
 359         /**
 360          * This will be called by OutputPage::headElement when it is creating the
 361          * <body> tag, skins can override it if they have a need to add in any
 362          * body attributes or classes of their own.
 363          * @param $out OutputPage
 364          * @param $bodyAttrs Array
 365          */
 366         function addToBodyAttributes( $out, &$bodyAttrs ) {
 367                 // does nothing by default
 368         }
 369
 370         /**
 371          * URL to the logo
 372          * @return String
 373          */
 374         function getLogo() {
 375                 global $wgLogo;
 376                 return $wgLogo;
 377         }
 378
 379         /**
 380          * @return string
 381          */
 382         function getCategoryLinks() {
 383                 global $wgUseCategoryBrowser;
 384
 385                 $out = $this->getOutput();
 386                 $allCats = $out->getCategoryLinks();
 387
 388                 if ( !count( $allCats ) ) {
 389                         return '';
 390                 }
 391
 392                 $embed = "<li>";
 393                 $pop = "</li>";
 394
 395                 $s = '';
 396                 $colon = $this->msg( 'colon-separator' )->escaped();
 397
 398                 if ( !empty( $allCats['normal'] ) ) {
 399                         $t = $embed . implode( "{$pop}{$embed}" , $allCats['normal'] ) . $pop;
 400
 401                         $msg = $this->msg( 'pagecategories', count( $allCats['normal'] ) )->escaped();
 402                         $linkPage = wfMessage( 'pagecategorieslink' )->inContentLanguage()->text();
 403                         $s .= '<div id="mw-normal-catlinks" class="mw-normal-catlinks">' .
 404                                 Linker::link( Title::newFromText( $linkPage ), $msg )
 405                                 . $colon . '<ul>' . $t . '</ul>' . '</div>';
 406                 }
 407
 408                 # Hidden categories
 409                 if ( isset( $allCats['hidden'] ) ) {
 410                         if ( $this->getUser()->getBoolOption( 'showhiddencats' ) ) {
 411                                 $class = ' mw-hidden-cats-user-shown';
 412                         } elseif ( $this->getTitle()->getNamespace() == NS_CATEGORY ) {
 413                                 $class = ' mw-hidden-cats-ns-shown';
 414                         } else {
 415                                 $class = ' mw-hidden-cats-hidden';
 416                         }
 417
 418                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"mw-hidden-catlinks$class\">" .
 419                                 $this->msg( 'hidden-categories', count( $allCats['hidden'] ) )->escaped() .
 420                                 $colon . '<ul>' . $embed . implode( "{$pop}{$embed}" , $allCats['hidden'] ) . $pop . '</ul>' .
 421                                 '</div>';
 422                 }
 423
 424                 # optional 'dmoz-like' category browser. Will be shown under the list
 425                 # of categories an article belong to
 426                 if ( $wgUseCategoryBrowser ) {
 427                         $s .= '<br /><hr />';
 428
 429                         # get a big array of the parents tree
 430                         $parenttree = $this->getTitle()->getParentCategoryTree();
 431                         # Skin object passed by reference cause it can not be
 432                         # accessed under the method subfunction drawCategoryBrowser
 433                         $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree ) );
 434                         # Clean out bogus first entry and sort them
 435                         unset( $tempout[0] );
 436                         asort( $tempout );
 437                         # Output one per line
 438                         $s .= implode( "<br />\n", $tempout );
 439                 }
 440
 441                 return $s;
 442         }
 443
 444         /**
 445          * Render the array as a serie of links.
 446          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 447          * @return String separated by &gt;, terminate with "\n"
 448          */
 449         function drawCategoryBrowser( $tree ) {
 450                 $return = '';
 451
 452                 foreach ( $tree as $element => $parent ) {
 453                         if ( empty( $parent ) ) {
 454                                 # element start a new list
 455                                 $return .= "\n";
 456                         } else {
 457                                 # grab the others elements
 458                                 $return .= $this->drawCategoryBrowser( $parent ) . ' &gt; ';
 459                         }
 460
 461                         # add our current element to the list
 462                         $eltitle = Title::newFromText( $element );
 463                         $return .=  Linker::link( $eltitle, htmlspecialchars( $eltitle->getText() ) );
 464                 }
 465
 466                 return $return;
 467         }
 468
 469         /**
 470          * @return string
 471          */
 472         function getCategories() {
 473                 $out = $this->getOutput();
 474
 475                 $catlinks = $this->getCategoryLinks();
 476
 477                 $classes = 'catlinks';
 478
 479                 // Check what we're showing
 480                 $allCats = $out->getCategoryLinks();
 481                 $showHidden = $this->getUser()->getBoolOption( 'showhiddencats' ) ||
 482                                                 $this->getTitle()->getNamespace() == NS_CATEGORY;
 483
 484                 if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 485                         $classes .= ' catlinks-allhidden';
 486                 }
 487
 488                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 489         }
 490
 491         /**
 492          * This runs a hook to allow extensions placing their stuff after content
 493          * and article metadata (e.g. categories).
 494          * Note: This function has nothing to do with afterContent().
 495          *
 496          * This hook is placed here in order to allow using the same hook for all
 497          * skins, both the SkinTemplate based ones and the older ones, which directly
 498          * use this class to get their data.
 499          *
 500          * The output of this function gets processed in SkinTemplate::outputPage() for
 501          * the SkinTemplate based skins, all other skins should directly echo it.
 502          *
 503          * @return String, empty by default, if not changed by any hook function.
 504          */
 505         protected function afterContentHook() {
 506                 $data = '';
 507
 508                 if ( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
 509                         // adding just some spaces shouldn't toggle the output
 510                         // of the whole <div/>, so we use trim() here
 511                         if ( trim( $data ) != '' ) {
 512                                 // Doing this here instead of in the skins to
 513                                 // ensure that the div has the same ID in all
 514                                 // skins
 515                                 $data = "<div id='mw-data-after-content'>\n" .
 516                                         "\t$data\n" .
 517                                         "</div>\n";
 518                         }
 519                 } else {
 520                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 521                 }
 522
 523                 return $data;
 524         }
 525
 526         /**
 527          * Generate debug data HTML for displaying at the bottom of the main content
 528          * area.
 529          * @return String HTML containing debug data, if enabled (otherwise empty).
 530          */
 531         protected function generateDebugHTML() {
 532                 global $wgShowDebug;
 533
 534                 $html = MWDebug::getDebugHTML( $this->getContext() );
 535
 536                 if ( $wgShowDebug ) {
 537                         $listInternals = $this->formatDebugHTML( $this->getOutput()->mDebugtext );
 538                         $html .= "\n<hr />\n<strong>Debug data:</strong><ul id=\"mw-debug-html\">" .
 539                                 $listInternals . "</ul>\n";
 540                 }
 541
 542                 return $html;
 543         }
 544
 545         /**
 546          * @param $debugText string
 547          * @return string
 548          */
 549         private function formatDebugHTML( $debugText ) {
 550                 global $wgDebugTimestamps;
 551
 552                 $lines = explode( "\n", $debugText );
 553                 $curIdent = 0;
 554                 $ret = '<li>';
 555
 556                 foreach ( $lines as $line ) {
 557                         $pre = '';
 558                         if ( $wgDebugTimestamps ) {
 559                                 $matches = array();
 560                                 if ( preg_match( '/^(\d+\.\d+ {1,3}\d+.\dM\s{2})/', $line, $matches ) ) {
 561                                         $pre = $matches[1];
 562                                         $line = substr( $line, strlen( $pre ) );
 563                                 }
 564                         }
 565                         $display = ltrim( $line );
 566                         $ident = strlen( $line ) - strlen( $display );
 567                         $diff = $ident - $curIdent;
 568
 569                         $display = $pre . $display;
 570                         if ( $display == '' ) {
 571                                 $display = "\xc2\xa0";
 572                         }
 573
 574                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 575                                 $ident = $curIdent;
 576                                 $diff = 0;
 577                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 578                         } else {
 579                                 $display = htmlspecialchars( $display );
 580                         }
 581
 582                         if ( $diff < 0 ) {
 583                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 584                         } elseif ( $diff == 0 ) {
 585                                 $ret .= "</li><li>\n";
 586                         } else {
 587                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 588                         }
 589                         $ret .= "<tt>$display</tt>\n";
 590
 591                         $curIdent = $ident;
 592                 }
 593
 594                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 595
 596                 return $ret;
 597         }
 598
 599         /**
 600          * This gets called shortly before the </body> tag.
 601          *
 602          * @return String HTML-wrapped JS code to be put before </body>
 603          */
 604         function bottomScripts() {
 605                 // TODO and the suckage continues. This function is really just a wrapper around
 606                 // OutputPage::getBottomScripts() which takes a Skin param. This should be cleaned
 607                 // up at some point
 608                 $bottomScriptText = $this->getOutput()->getBottomScripts();
 609                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 610
 611                 return $bottomScriptText;
 612         }
 613
 614         /**
 615          * Text with the permalink to the source page,
 616          * usually shown on the footer of a printed page
 617          *
 618          * @return string HTML text with an URL
 619          */
 620         function printSource() {
 621                 $oldid = $this->getRevisionId();
 622                 if ( $oldid ) {
 623                         $url = htmlspecialchars( $this->getTitle()->getCanonicalURL( 'oldid=' . $oldid ) );
 624                 } else {
 625                         // oldid not available for non existing pages
 626                         $url = htmlspecialchars( $this->getTitle()->getCanonicalURL() );
 627                 }
 628                 return $this->msg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' )->text();
 629         }
 630
 631         /**
 632          * @return String
 633          */
 634         function getUndeleteLink() {
 635                 $action = $this->getRequest()->getVal( 'action', 'view' );
 636
 637                 if ( $this->getUser()->isAllowed( 'deletedhistory' ) &&
 638                         ( $this->getTitle()->getArticleId() == 0 || $action == 'history' ) ) {
 639                         $n = $this->getTitle()->isDeleted();
 640
 641
 642                         if ( $n ) {
 643                                 if ( $this->getUser()->isAllowed( 'undelete' ) ) {
 644                                         $msg = 'thisisdeleted';
 645                                 } else {
 646                                         $msg = 'viewdeleted';
 647                                 }
 648
 649                                 return $this->msg( $msg )->rawParams(
 650                                         Linker::linkKnown(
 651                                                 SpecialPage::getTitleFor( 'Undelete', $this->getTitle()->getPrefixedDBkey() ),
 652                                                 $this->msg( 'restorelink' )->numParams( $n )->escaped() )
 653                                         )->text();
 654                         }
 655                 }
 656
 657                 return '';
 658         }
 659
 660         /**
 661          * @return string
 662          */
 663         function subPageSubtitle() {
 664                 $out = $this->getOutput();
 665                 $subpages = '';
 666
 667                 if ( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages, $this, $out ) ) ) {
 668                         return $subpages;
 669                 }
 670
 671                 if ( $out->isArticle() && MWNamespace::hasSubpages( $out->getTitle()->getNamespace() ) ) {
 672                         $ptext = $this->getTitle()->getPrefixedText();
 673                         if ( preg_match( '/\//', $ptext ) ) {
 674                                 $links = explode( '/', $ptext );
 675                                 array_pop( $links );
 676                                 $c = 0;
 677                                 $growinglink = '';
 678                                 $display = '';
 679
 680                                 foreach ( $links as $link ) {
 681                                         $growinglink .= $link;
 682                                         $display .= $link;
 683                                         $linkObj = Title::newFromText( $growinglink );
 684
 685                                         if ( is_object( $linkObj ) && $linkObj->exists() ) {
 686                                                 $getlink = Linker::linkKnown(
 687                                                         $linkObj,
 688                                                         htmlspecialchars( $display )
 689                                                 );
 690
 691                                                 $c++;
 692
 693                                                 if ( $c > 1 ) {
 694                                                         $subpages .= $this->msg( 'pipe-separator' )->escaped();
 695                                                 } else  {
 696                                                         $subpages .= '&lt; ';
 697                                                 }
 698
 699                                                 $subpages .= $getlink;
 700                                                 $display = '';
 701                                         } else {
 702                                                 $display .= '/';
 703                                         }
 704                                         $growinglink .= '/';
 705                                 }
 706                         }
 707                 }
 708
 709                 return $subpages;
 710         }
 711
 712         /**
 713          * Returns true if the IP should be shown in the header
 714          * @return Bool
 715          */
 716         function showIPinHeader() {
 717                 global $wgShowIPinHeader;
 718                 return $wgShowIPinHeader && session_id() != '';
 719         }
 720
 721         /**
 722          * @return String
 723          */
 724         function getSearchLink() {
 725                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 726                 return $searchPage->getLocalURL();
 727         }
 728
 729         /**
 730          * @return string
 731          */
 732         function escapeSearchLink() {
 733                 return htmlspecialchars( $this->getSearchLink() );
 734         }
 735
 736         /**
 737          * @param $type string
 738          * @return string
 739          */
 740         function getCopyright( $type = 'detect' ) {
 741                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgContLang;
 742
 743                 if ( $type == 'detect' ) {
 744                         if ( !$this->isRevisionCurrent() && !$this->msg( 'history_copyright' )->inContentLanguage()->isDisabled() ) {
 745                                 $type = 'history';
 746                         } else {
 747                                 $type = 'normal';
 748                         }
 749                 }
 750
 751                 if ( $type == 'history' ) {
 752                         $msg = 'history_copyright';
 753                 } else {
 754                         $msg = 'copyright';
 755                 }
 756
 757                 if ( $wgRightsPage ) {
 758                         $title = Title::newFromText( $wgRightsPage );
 759                         $link = Linker::linkKnown( $title, $wgRightsText );
 760                 } elseif ( $wgRightsUrl ) {
 761                         $link = Linker::makeExternalLink( $wgRightsUrl, $wgRightsText );
 762                 } elseif ( $wgRightsText ) {
 763                         $link = $wgRightsText;
 764                 } else {
 765                         # Give up now
 766                         return '';
 767                 }
 768
 769                 // Allow for site and per-namespace customization of copyright notice.
 770                 $forContent = true;
 771
 772                 wfRunHooks( 'SkinCopyrightFooter', array( $this->getTitle(), $type, &$msg, &$link, &$forContent ) );
 773
 774                 $msgObj = $this->msg( $msg )->rawParams( $link );
 775                 if ( $forContent ) {
 776                         $msg = $msgObj->inContentLanguage()->text();
 777                         if ( $this->getLanguage()->getCode() !== $wgContLang->getCode() ) {
 778                                 $msg = Html::rawElement( 'span', array( 'lang' => $wgContLang->getHtmlCode(), 'dir' => $wgContLang->getDir() ), $msg );
 779                         }
 780                         return $msg;
 781                 } else {
 782                         return $msgObj->text();
 783                 }
 784         }
 785
 786         /**
 787          * @return null|string
 788          */
 789         function getCopyrightIcon() {
 790                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 791
 792                 $out = '';
 793
 794                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 795                         $out = $wgCopyrightIcon;
 796                 } elseif ( $wgRightsIcon ) {
 797                         $icon = htmlspecialchars( $wgRightsIcon );
 798
 799                         if ( $wgRightsUrl ) {
 800                                 $url = htmlspecialchars( $wgRightsUrl );
 801                                 $out .= '<a href="' . $url . '">';
 802                         }
 803
 804                         $text = htmlspecialchars( $wgRightsText );
 805                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
 806
 807                         if ( $wgRightsUrl ) {
 808                                 $out .= '</a>';
 809                         }
 810                 }
 811
 812                 return $out;
 813         }
 814
 815         /**
 816          * Gets the powered by MediaWiki icon.
 817          * @return string
 818          */
 819         function getPoweredBy() {
 820                 global $wgStylePath;
 821
 822                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 823                 $text = '<a href="//www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
 824                 wfRunHooks( 'SkinGetPoweredBy', array( &$text, $this ) );
 825                 return $text;
 826         }
 827
 828         /**
 829          * Get the timestamp of the latest revision, formatted in user language
 830          *
 831          * @return String
 832          */
 833         protected function lastModified() {
 834                 $timestamp = $this->getOutput()->getRevisionTimestamp();
 835
 836                 # No cached timestamp, load it from the database
 837                 if ( $timestamp === null ) {
 838                         $timestamp = Revision::getTimestampFromId( $this->getTitle(), $this->getRevisionId() );
 839                 }
 840
 841                 if ( $timestamp ) {
 842                         $d = $this->getLanguage()->userDate( $timestamp, $this->getUser() );
 843                         $t = $this->getLanguage()->userTime( $timestamp, $this->getUser() );
 844                         $s = ' ' . $this->msg( 'lastmodifiedat', $d, $t )->text();
 845                 } else {
 846                         $s = '';
 847                 }
 848
 849                 if ( wfGetLB()->getLaggedSlaveMode() ) {
 850                         $s .= ' <strong>' . $this->msg( 'laggedslavemode' )->text() . '</strong>';
 851                 }
 852
 853                 return $s;
 854         }
 855
 856         /**
 857          * @param $align string
 858          * @return string
 859          */
 860         function logoText( $align = '' ) {
 861                 if ( $align != '' ) {
 862                         $a = " align='{$align}'";
 863                 } else {
 864                         $a = '';
 865                 }
 866
 867                 $mp = $this->msg( 'mainpage' )->escaped();
 868                 $mptitle = Title::newMainPage();
 869                 $url = ( is_object( $mptitle ) ? htmlspecialchars( $mptitle->getLocalURL() ) : '' );
 870
 871                 $logourl = $this->getLogo();
 872                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
 873
 874                 return $s;
 875         }
 876
 877         /**
 878          * Renders a $wgFooterIcons icon acording to the method's arguments
 879          * @param $icon Array: The icon to build the html for, see $wgFooterIcons for the format of this array
 880          * @param $withImage Bool|String: Whether to use the icon's image or output a text-only footericon
 881          * @return String HTML
 882          */
 883         function makeFooterIcon( $icon, $withImage = 'withImage' ) {
 884                 if ( is_string( $icon ) ) {
 885                         $html = $icon;
 886                 } else { // Assuming array
 887                         $url = isset($icon["url"]) ? $icon["url"] : null;
 888                         unset( $icon["url"] );
 889                         if ( isset( $icon["src"] ) && $withImage === 'withImage' ) {
 890                                 $html = Html::element( 'img', $icon ); // do this the lazy way, just pass icon data as an attribute array
 891                         } else {
 892                                 $html = htmlspecialchars( $icon["alt"] );
 893                         }
 894                         if ( $url ) {
 895                                 $html = Html::rawElement( 'a', array( "href" => $url ), $html );
 896                         }
 897                 }
 898                 return $html;
 899         }
 900
 901         /**
 902          * Gets the link to the wiki's main page.
 903          * @return string
 904          */
 905         function mainPageLink() {
 906                 $s = Linker::linkKnown(
 907                         Title::newMainPage(),
 908                         $this->msg( 'mainpage' )->escaped()
 909                 );
 910
 911                 return $s;
 912         }
 913
 914         /**
 915          * @param $desc
 916          * @param $page
 917          * @return string
 918          */
 919         public function footerLink( $desc, $page ) {
 920                 // if the link description has been set to "-" in the default language,
 921                 if ( $this->msg( $desc )->inContentLanguage()->isDisabled() ) {
 922                         // then it is disabled, for all languages.
 923                         return '';
 924                 } else {
 925                         // Otherwise, we display the link for the user, described in their
 926                         // language (which may or may not be the same as the default language),
 927                         // but we make the link target be the one site-wide page.
 928                         $title = Title::newFromText( $this->msg( $page )->inContentLanguage()->text() );
 929
 930                         return Linker::linkKnown(
 931                                 $title,
 932                                 $this->msg( $desc )->escaped()
 933                         );
 934                 }
 935         }
 936
 937         /**
 938          * Gets the link to the wiki's privacy policy page.
 939          * @return String HTML
 940          */
 941         function privacyLink() {
 942                 return $this->footerLink( 'privacy', 'privacypage' );
 943         }
 944
 945         /**
 946          * Gets the link to the wiki's about page.
 947          * @return String HTML
 948          */
 949         function aboutLink() {
 950                 return $this->footerLink( 'aboutsite', 'aboutpage' );
 951         }
 952
 953         /**
 954          * Gets the link to the wiki's general disclaimers page.
 955          * @return String HTML
 956          */
 957         function disclaimerLink() {
 958                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
 959         }
 960
 961         /**
 962          * Return URL options for the 'edit page' link.
 963          * This may include an 'oldid' specifier, if the current page view is such.
 964          *
 965          * @return array
 966          * @private
 967          */
 968         function editUrlOptions() {
 969                 $options = array( 'action' => 'edit' );
 970
 971                 if ( !$this->isRevisionCurrent() ) {
 972                         $options['oldid'] = intval( $this->getRevisionId() );
 973                 }
 974
 975                 return $options;
 976         }
 977
 978         /**
 979          * @param $id User|int
 980          * @return bool
 981          */
 982         function showEmailUser( $id ) {
 983                 if ( $id instanceof User ) {
 984                         $targetUser = $id;
 985                 } else {
 986                         $targetUser = User::newFromId( $id );
 987                 }
 988                 return $this->getUser()->canSendEmail() && # the sending user must have a confirmed email address
 989                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
 990         }
 991
 992         /**
 993          * Return a fully resolved style path url to images or styles stored in the common folder.
 994          * This method returns a url resolved using the configured skin style path
 995          * and includes the style version inside of the url.
 996          * @param $name String: The name or path of a skin resource file
 997          * @return String The fully resolved style path url including styleversion
 998          */
 999         function getCommonStylePath( $name ) {
1000                 global $wgStylePath, $wgStyleVersion;
1001                 return "$wgStylePath/common/$name?$wgStyleVersion";
1002         }
1003
1004         /**
1005          * Return a fully resolved style path url to images or styles stored in the curent skins's folder.
1006          * This method returns a url resolved using the configured skin style path
1007          * and includes the style version inside of the url.
1008          * @param $name String: The name or path of a skin resource file
1009          * @return String The fully resolved style path url including styleversion
1010          */
1011         function getSkinStylePath( $name ) {
1012                 global $wgStylePath, $wgStyleVersion;
1013                 return "$wgStylePath/{$this->stylename}/$name?$wgStyleVersion";
1014         }
1015
1016         /* these are used extensively in SkinTemplate, but also some other places */
1017
1018         /**
1019          * @param $urlaction string
1020          * @return String
1021          */
1022         static function makeMainPageUrl( $urlaction = '' ) {
1023                 $title = Title::newMainPage();
1024                 self::checkTitle( $title, '' );
1025
1026                 return $title->getLocalURL( $urlaction );
1027         }
1028
1029         /**
1030          * @param $name string
1031          * @param $urlaction string
1032          * @return String
1033          */
1034         static function makeSpecialUrl( $name, $urlaction = '' ) {
1035                 $title = SpecialPage::getSafeTitleFor( $name );
1036                 return $title->getLocalURL( $urlaction );
1037         }
1038
1039         /**
1040          * @param $name string
1041          * @param $subpage string
1042          * @param $urlaction string
1043          * @return String
1044          */
1045         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1046                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1047                 return $title->getLocalURL( $urlaction );
1048         }
1049
1050         /**
1051          * @param $name string
1052          * @param $urlaction string
1053          * @return String
1054          */
1055         static function makeI18nUrl( $name, $urlaction = '' ) {
1056                 $title = Title::newFromText( wfMsgForContent( $name ) );
1057                 self::checkTitle( $title, $name );
1058                 return $title->getLocalURL( $urlaction );
1059         }
1060
1061         /**
1062          * @param $name string
1063          * @param $urlaction string
1064          * @return String
1065          */
1066         static function makeUrl( $name, $urlaction = '' ) {
1067                 $title = Title::newFromText( $name );
1068                 self::checkTitle( $title, $name );
1069
1070                 return $title->getLocalURL( $urlaction );
1071         }
1072
1073         /**
1074          * If url string starts with http, consider as external URL, else
1075          * internal
1076          * @param $name String
1077          * @return String URL
1078          */
1079         static function makeInternalOrExternalUrl( $name ) {
1080                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1081                         return $name;
1082                 } else {
1083                         return self::makeUrl( $name );
1084                 }
1085         }
1086
1087         /**
1088          * this can be passed the NS number as defined in Language.php
1089          * @param $name
1090          * @param $urlaction string
1091          * @param $namespace int
1092          * @return String
1093          */
1094         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1095                 $title = Title::makeTitleSafe( $namespace, $name );
1096                 self::checkTitle( $title, $name );
1097
1098                 return $title->getLocalURL( $urlaction );
1099         }
1100
1101         /**
1102          * these return an array with the 'href' and boolean 'exists'
1103          * @param $name
1104          * @param $urlaction string
1105          * @return array
1106          */
1107         static function makeUrlDetails( $name, $urlaction = '' ) {
1108                 $title = Title::newFromText( $name );
1109                 self::checkTitle( $title, $name );
1110
1111                 return array(
1112                         'href' => $title->getLocalURL( $urlaction ),
1113                         'exists' => $title->getArticleID() != 0,
1114                 );
1115         }
1116
1117         /**
1118          * Make URL details where the article exists (or at least it's convenient to think so)
1119          * @param $name String Article name
1120          * @param $urlaction String
1121          * @return Array
1122          */
1123         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1124                 $title = Title::newFromText( $name );
1125                 self::checkTitle( $title, $name );
1126
1127                 return array(
1128                         'href' => $title->getLocalURL( $urlaction ),
1129                         'exists' => true
1130                 );
1131         }
1132
1133         /**
1134          * make sure we have some title to operate on
1135          *
1136          * @param $title Title
1137          * @param $name string
1138          */
1139         static function checkTitle( &$title, $name ) {
1140                 if ( !is_object( $title ) ) {
1141                         $title = Title::newFromText( $name );
1142                         if ( !is_object( $title ) ) {
1143                                 $title = Title::newFromText( '--error: link target missing--' );
1144                         }
1145                 }
1146         }
1147
1148         /**
1149          * Build an array that represents the sidebar(s), the navigation bar among them
1150          *
1151          * @return array
1152          */
1153         function buildSidebar() {
1154                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1155                 wfProfileIn( __METHOD__ );
1156
1157                 $key = wfMemcKey( 'sidebar', $this->getLanguage()->getCode() );
1158
1159                 if ( $wgEnableSidebarCache ) {
1160                         $cachedsidebar = $parserMemc->get( $key );
1161                         if ( $cachedsidebar ) {
1162                                 wfProfileOut( __METHOD__ );
1163                                 return $cachedsidebar;
1164                         }
1165                 }
1166
1167                 $bar = array();
1168                 $this->addToSidebar( $bar, 'sidebar' );
1169
1170                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
1171                 if ( $wgEnableSidebarCache ) {
1172                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1173                 }
1174
1175                 wfProfileOut( __METHOD__ );
1176                 return $bar;
1177         }
1178         /**
1179          * Add content from a sidebar system message
1180          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
1181          *
1182          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
1183          *
1184          * @param $bar array
1185          * @param $message String
1186          */
1187         function addToSidebar( &$bar, $message ) {
1188                 $this->addToSidebarPlain( $bar, wfMsgForContentNoTrans( $message ) );
1189         }
1190
1191         /**
1192          * Add content from plain text
1193          * @since 1.17
1194          * @param $bar array
1195          * @param $text string
1196          * @return Array
1197          */
1198         function addToSidebarPlain( &$bar, $text ) {
1199                 $lines = explode( "\n", $text );
1200
1201                 $heading = '';
1202
1203                 foreach ( $lines as $line ) {
1204                         if ( strpos( $line, '*' ) !== 0 ) {
1205                                 continue;
1206                         }
1207                         $line = rtrim( $line, "\r" ); // for Windows compat
1208
1209                         if ( strpos( $line, '**' ) !== 0 ) {
1210                                 $heading = trim( $line, '* ' );
1211                                 if ( !array_key_exists( $heading, $bar ) ) {
1212                                         $bar[$heading] = array();
1213                                 }
1214                         } else {
1215                                 $line = trim( $line, '* ' );
1216
1217                                 if ( strpos( $line, '|' ) !== false ) { // sanity check
1218                                         $line = MessageCache::singleton()->transform( $line, false, null, $this->getTitle() );
1219                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
1220                                         $extraAttribs = array();
1221
1222                                         $msgLink = $this->msg( $line[0] )->inContentLanguage();
1223                                         if ( $msgLink->exists() ) {
1224                                                 $link = $msgLink->text();
1225                                                 if ( $link == '-' ) {
1226                                                         continue;
1227                                                 }
1228                                         } else {
1229                                                 $link = $line[0];
1230                                         }
1231
1232                                         $msgText = $this->msg( $line[1] );
1233                                         if ( $msgText->exists() ) {
1234                                                 $text = $msgText->text();
1235                                         } else {
1236                                                 $text = $line[1];
1237                                         }
1238
1239                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1240                                                 $href = $link;
1241
1242                                                 // Parser::getExternalLinkAttribs won't work here because of the Namespace things
1243                                                 global $wgNoFollowLinks, $wgNoFollowDomainExceptions;
1244                                                 if ( $wgNoFollowLinks && !wfMatchesDomainList( $href, $wgNoFollowDomainExceptions ) ) {
1245                                                         $extraAttribs['rel'] = 'nofollow';
1246                                                 }
1247
1248                                                 global $wgExternalLinkTarget;
1249                                                 if ( $wgExternalLinkTarget) {
1250                                                         $extraAttribs['target'] = $wgExternalLinkTarget;
1251                                                 }
1252                                         } else {
1253                                                 $title = Title::newFromText( $link );
1254
1255                                                 if ( $title ) {
1256                                                         $title = $title->fixSpecialName();
1257                                                         $href = $title->getLinkURL();
1258                                                 } else {
1259                                                         $href = 'INVALID-TITLE';
1260                                                 }
1261                                         }
1262
1263                                         $bar[$heading][] = array_merge( array(
1264                                                 'text' => $text,
1265                                                 'href' => $href,
1266                                                 'id' => 'n-' . Sanitizer::escapeId( strtr( $line[1], ' ', '-' ), 'noninitial' ),
1267                                                 'active' => false
1268                                         ), $extraAttribs );
1269                                 } else {
1270                                         continue;
1271                                 }
1272                         }
1273                 }
1274
1275                 return $bar;
1276         }
1277
1278         /**
1279          * Should we load mediawiki.legacy.wikiprintable?  Skins that have their own
1280          * print stylesheet should override this and return false.  (This is an
1281          * ugly hack to get Monobook to play nicely with OutputPage::headElement().)
1282          *
1283          * @return bool
1284          */
1285         public function commonPrintStylesheet() {
1286                 return true;
1287         }
1288
1289         /**
1290          * Gets new talk page messages for the current user.
1291          * @return MediaWiki message or if no new talk page messages, nothing
1292          */
1293         function getNewtalks() {
1294                 $out = $this->getOutput();
1295
1296                 $newtalks = $this->getUser()->getNewMessageLinks();
1297                 $ntl = '';
1298
1299                 if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
1300                         $userTitle = $this->getUser()->getUserPage();
1301                         $userTalkTitle = $userTitle->getTalkPage();
1302
1303                         if ( !$userTalkTitle->equals( $out->getTitle() ) ) {
1304                                 $newMessagesLink = Linker::linkKnown(
1305                                         $userTalkTitle,
1306                                         $this->msg( 'newmessageslink' )->escaped(),
1307                                         array(),
1308                                         array( 'redirect' => 'no' )
1309                                 );
1310
1311                                 $newMessagesDiffLink = Linker::linkKnown(
1312                                         $userTalkTitle,
1313                                         $this->msg( 'newmessagesdifflink' )->escaped(),
1314                                         array(),
1315                                         array( 'diff' => 'cur' )
1316                                 );
1317
1318                                 $ntl = $this->msg(
1319                                         'youhavenewmessages',
1320                                         $newMessagesLink,
1321                                         $newMessagesDiffLink
1322                                 )->text();
1323                                 # Disable Squid cache
1324                                 $out->setSquidMaxage( 0 );
1325                         }
1326                 } elseif ( count( $newtalks ) ) {
1327                         // _>" " for BC <= 1.16
1328                         $sep = str_replace( '_', ' ', $this->msg( 'newtalkseparator' )->escaped() );
1329                         $msgs = array();
1330
1331                         foreach ( $newtalks as $newtalk ) {
1332                                 $msgs[] = Xml::element(
1333                                         'a',
1334                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
1335                                 );
1336                         }
1337                         $parts = implode( $sep, $msgs );
1338                         $ntl = $this->msg( 'youhavenewmessagesmulti' )->rawParams( $parts )->escaped();
1339                         $out->setSquidMaxage( 0 );
1340                 }
1341
1342                 return $ntl;
1343         }
1344
1345         /**
1346          * Get a cached notice
1347          *
1348          * @param $name String: message name, or 'default' for $wgSiteNotice
1349          * @return String: HTML fragment
1350          */
1351         private function getCachedNotice( $name ) {
1352                 global $wgRenderHashAppend, $parserMemc, $wgContLang;
1353
1354                 wfProfileIn( __METHOD__ );
1355
1356                 $needParse = false;
1357
1358                 if( $name === 'default' ) {
1359                         // special case
1360                         global $wgSiteNotice;
1361                         $notice = $wgSiteNotice;
1362                         if( empty( $notice ) ) {
1363                                 wfProfileOut( __METHOD__ );
1364                                 return false;
1365                         }
1366                 } else {
1367                         $msg = $this->msg( $name )->inContentLanguage();
1368                         if( $msg->isDisabled() ) {
1369                                 wfProfileOut( __METHOD__ );
1370                                 return false;
1371                         }
1372                         $notice = $msg->plain();
1373                 }
1374
1375                 // Use the extra hash appender to let eg SSL variants separately cache.
1376                 $key = wfMemcKey( $name . $wgRenderHashAppend );
1377                 $cachedNotice = $parserMemc->get( $key );
1378                 if( is_array( $cachedNotice ) ) {
1379                         if( md5( $notice ) == $cachedNotice['hash'] ) {
1380                                 $notice = $cachedNotice['html'];
1381                         } else {
1382                                 $needParse = true;
1383                         }
1384                 } else {
1385                         $needParse = true;
1386                 }
1387
1388                 if ( $needParse ) {
1389                         $parsed = $this->getOutput()->parse( $notice );
1390                         $parserMemc->set( $key, array( 'html' => $parsed, 'hash' => md5( $notice ) ), 600 );
1391                         $notice = $parsed;
1392                 }
1393
1394                 $notice = Html::rawElement( 'div', array( 'id' => 'localNotice',
1395                         'lang' => $wgContLang->getHtmlCode(), 'dir' => $wgContLang->getDir() ), $notice );
1396                 wfProfileOut( __METHOD__ );
1397                 return $notice;
1398         }
1399
1400         /**
1401          * Get a notice based on page's namespace
1402          *
1403          * @return String: HTML fragment
1404          */
1405         function getNamespaceNotice() {
1406                 wfProfileIn( __METHOD__ );
1407
1408                 $key = 'namespacenotice-' . $this->getTitle()->getNsText();
1409                 $namespaceNotice = $this->getCachedNotice( $key );
1410                 if ( $namespaceNotice && substr( $namespaceNotice, 0, 7 ) != '<p>&lt;' ) {
1411                         $namespaceNotice = '<div id="namespacebanner">' . $namespaceNotice . '</div>';
1412                 } else {
1413                         $namespaceNotice = '';
1414                 }
1415
1416                 wfProfileOut( __METHOD__ );
1417                 return $namespaceNotice;
1418         }
1419
1420         /**
1421          * Get the site notice
1422          *
1423          * @return String: HTML fragment
1424          */
1425         function getSiteNotice() {
1426                 wfProfileIn( __METHOD__ );
1427                 $siteNotice = '';
1428
1429                 if ( wfRunHooks( 'SiteNoticeBefore', array( &$siteNotice, $this ) ) ) {
1430                         if ( is_object( $this->getUser() ) && $this->getUser()->isLoggedIn() ) {
1431                                 $siteNotice = $this->getCachedNotice( 'sitenotice' );
1432                         } else {
1433                                 $anonNotice = $this->getCachedNotice( 'anonnotice' );
1434                                 if ( !$anonNotice ) {
1435                                         $siteNotice = $this->getCachedNotice( 'sitenotice' );
1436                                 } else {
1437                                         $siteNotice = $anonNotice;
1438                                 }
1439                         }
1440                         if ( !$siteNotice ) {
1441                                 $siteNotice = $this->getCachedNotice( 'default' );
1442                         }
1443                 }
1444
1445                 wfRunHooks( 'SiteNoticeAfter', array( &$siteNotice, $this ) );
1446                 wfProfileOut( __METHOD__ );
1447                 return $siteNotice;
1448         }
1449
1450         /**
1451          * Create a section edit link.  This supersedes editSectionLink() and
1452          * editSectionLinkForOther().
1453          *
1454          * @param $nt      Title  The title being linked to (may not be the same as
1455          *   $wgTitle, if the section is included from a template)
1456          * @param $section string The designation of the section being pointed to,
1457          *   to be included in the link, like "&section=$section"
1458          * @param $tooltip string The tooltip to use for the link: will be escaped
1459          *   and wrapped in the 'editsectionhint' message
1460          * @param $lang    string Language code
1461          * @return         string HTML to use for edit link
1462          */
1463         public function doEditSectionLink( Title $nt, $section, $tooltip = null, $lang = false ) {
1464                 // HTML generated here should probably have userlangattributes
1465                 // added to it for LTR text on RTL pages
1466                 $attribs = array();
1467                 if ( !is_null( $tooltip ) ) {
1468                         # Bug 25462: undo double-escaping.
1469                         $tooltip = Sanitizer::decodeCharReferences( $tooltip );
1470                         $attribs['title'] = wfMsgExt( 'editsectionhint', array( 'language' => $lang, 'parsemag' ), $tooltip );
1471                 }
1472                 $link = Linker::link( $nt, wfMsgExt( 'editsection', array( 'language' => $lang ) ),
1473                         $attribs,
1474                         array( 'action' => 'edit', 'section' => $section ),
1475                         array( 'noclasses', 'known' )
1476                 );
1477
1478                 # Run the old hook.  This takes up half of the function . . . hopefully
1479                 # we can rid of it someday.
1480                 $attribs = '';
1481                 if ( $tooltip ) {
1482                         $attribs = wfMsgExt( 'editsectionhint', array( 'language' => $lang, 'parsemag', 'escape' ), $tooltip );
1483                         $attribs = " title=\"$attribs\"";
1484                 }
1485                 $result = null;
1486                 wfRunHooks( 'EditSectionLink', array( &$this, $nt, $section, $attribs, $link, &$result, $lang ) );
1487                 if ( !is_null( $result ) ) {
1488                         # For reverse compatibility, add the brackets *after* the hook is
1489                         # run, and even add them to hook-provided text.  (This is the main
1490                         # reason that the EditSectionLink hook is deprecated in favor of
1491                         # DoEditSectionLink: it can't change the brackets or the span.)
1492                         $result = wfMsgExt( 'editsection-brackets', array( 'escape', 'replaceafter', 'language' => $lang ), $result );
1493                         return "<span class=\"editsection\">$result</span>";
1494                 }
1495
1496                 # Add the brackets and the span, and *then* run the nice new hook, with
1497                 # clean and non-redundant arguments.
1498                 $result = wfMsgExt( 'editsection-brackets', array( 'escape', 'replaceafter', 'language' => $lang ), $link );
1499                 $result = "<span class=\"editsection\">$result</span>";
1500
1501                 wfRunHooks( 'DoEditSectionLink', array( $this, $nt, $section, $tooltip, &$result, $lang ) );
1502                 return $result;
1503         }
1504
1505         /**
1506          * Use PHP's magic __call handler to intercept legacy calls to the linker
1507          * for backwards compatibility.
1508          *
1509          * @param $fname String Name of called method
1510          * @param $args Array Arguments to the method
1511          */
1512         function __call( $fname, $args ) {
1513                 $realFunction = array( 'Linker', $fname );
1514                 if ( is_callable( $realFunction ) ) {
1515                         return call_user_func_array( $realFunction, $args );
1516                 } else {
1517                         $className = get_class( $this );
1518                         throw new MWException( "Call to undefined method $className::$fname" );
1519                 }
1520         }
1521
1522 }