includes/skins/SkinTemplate.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  */
  20
  21 /**
  22  * Base class for template-based skins.
  23  *
  24  * Template-filler skin base class
  25  * Formerly generic PHPTal (http://phptal.sourceforge.net/) skin
  26  * Based on Brion's smarty skin
  27  * @copyright Copyright © Gabriel Wicke -- http://www.aulinx.de/
  28  *
  29  * @todo Needs some serious refactoring into functions that correspond
  30  * to the computations individual esi snippets need. Most importantly no body
  31  * parsing for most of those of course.
  32  *
  33  * @ingroup Skins
  34  */
  35 class SkinTemplate extends Skin {
  36         /**
  37          * @var string Name of our skin, it probably needs to be all lower case.
  38          *   Child classes should override the default.
  39          */
  40         public $skinname = 'monobook';
  41
  42         /**
  43          * @var string For QuickTemplate, the name of the subclass which will
  44          *   actually fill the template.  Child classes should override the default.
  45          */
  46         public $template = 'QuickTemplate';
  47
  48         /**
  49          * Add specific styles for this skin
  50          *
  51          * @param OutputPage $out
  52          */
  53         function setupSkinUserCss( OutputPage $out ) {
  54                 $moduleStyles = [
  55                         'mediawiki.legacy.shared',
  56                         'mediawiki.legacy.commonPrint',
  57                         'mediawiki.sectionAnchor'
  58                 ];
  59                 if ( $out->isSyndicated() ) {
  60                         $moduleStyles[] = 'mediawiki.feedlink';
  61                 }
  62
  63                 // Deprecated since 1.26: Unconditional loading of mediawiki.ui.button
  64                 // on every page is deprecated. Express a dependency instead.
  65                 if ( strpos( $out->getHTML(), 'mw-ui-button' ) !== false ) {
  66                         $moduleStyles[] = 'mediawiki.ui.button';
  67                 }
  68
  69                 $out->addModuleStyles( $moduleStyles );
  70         }
  71
  72         /**
  73          * Create the template engine object; we feed it a bunch of data
  74          * and eventually it spits out some HTML. Should have interface
  75          * roughly equivalent to PHPTAL 0.7.
  76          *
  77          * @param string $classname
  78          * @param bool|string $repository Subdirectory where we keep template files
  79          * @param bool|string $cache_dir
  80          * @return QuickTemplate
  81          * @private
  82          */
  83         function setupTemplate( $classname, $repository = false, $cache_dir = false ) {
  84                 return new $classname( $this->getConfig() );
  85         }
  86
  87         /**
  88          * Generates array of language links for the current page
  89          *
  90          * @return array
  91          */
  92         public function getLanguages() {
  93                 global $wgHideInterlanguageLinks;
  94                 if ( $wgHideInterlanguageLinks ) {
  95                         return [];
  96                 }
  97
  98                 $userLang = $this->getLanguage();
  99                 $languageLinks = [];
 100
 101                 foreach ( $this->getOutput()->getLanguageLinks() as $languageLinkText ) {
 102                         $class = 'interlanguage-link interwiki-' . explode( ':', $languageLinkText, 2 )[0];
 103
 104                         $languageLinkTitle = Title::newFromText( $languageLinkText );
 105                         if ( $languageLinkTitle ) {
 106                                 $ilInterwikiCode = $languageLinkTitle->getInterwiki();
 107                                 $ilLangName = Language::fetchLanguageName( $ilInterwikiCode );
 108
 109                                 if ( strval( $ilLangName ) === '' ) {
 110                                         $ilDisplayTextMsg = wfMessage( "interlanguage-link-$ilInterwikiCode" );
 111                                         if ( !$ilDisplayTextMsg->isDisabled() ) {
 112                                                 // Use custom MW message for the display text
 113                                                 $ilLangName = $ilDisplayTextMsg->text();
 114                                         } else {
 115                                                 // Last resort: fallback to the language link target
 116                                                 $ilLangName = $languageLinkText;
 117                                         }
 118                                 } else {
 119                                         // Use the language autonym as display text
 120                                         $ilLangName = $this->formatLanguageName( $ilLangName );
 121                                 }
 122
 123                                 // CLDR extension or similar is required to localize the language name;
 124                                 // otherwise we'll end up with the autonym again.
 125                                 $ilLangLocalName = Language::fetchLanguageName(
 126                                         $ilInterwikiCode,
 127                                         $userLang->getCode()
 128                                 );
 129
 130                                 $languageLinkTitleText = $languageLinkTitle->getText();
 131                                 if ( $ilLangLocalName === '' ) {
 132                                         $ilFriendlySiteName = wfMessage( "interlanguage-link-sitename-$ilInterwikiCode" );
 133                                         if ( !$ilFriendlySiteName->isDisabled() ) {
 134                                                 if ( $languageLinkTitleText === '' ) {
 135                                                         $ilTitle = wfMessage(
 136                                                                 'interlanguage-link-title-nonlangonly',
 137                                                                 $ilFriendlySiteName->text()
 138                                                         )->text();
 139                                                 } else {
 140                                                         $ilTitle = wfMessage(
 141                                                                 'interlanguage-link-title-nonlang',
 142                                                                 $languageLinkTitleText,
 143                                                                 $ilFriendlySiteName->text()
 144                                                         )->text();
 145                                                 }
 146                                         } else {
 147                                                 // we have nothing friendly to put in the title, so fall back to
 148                                                 // displaying the interlanguage link itself in the title text
 149                                                 // (similar to what is done in page content)
 150                                                 $ilTitle = $languageLinkTitle->getInterwiki() .
 151                                                         ":$languageLinkTitleText";
 152                                         }
 153                                 } elseif ( $languageLinkTitleText === '' ) {
 154                                         $ilTitle = wfMessage(
 155                                                 'interlanguage-link-title-langonly',
 156                                                 $ilLangLocalName
 157                                         )->text();
 158                                 } else {
 159                                         $ilTitle = wfMessage(
 160                                                 'interlanguage-link-title',
 161                                                 $languageLinkTitleText,
 162                                                 $ilLangLocalName
 163                                         )->text();
 164                                 }
 165
 166                                 $ilInterwikiCodeBCP47 = wfBCP47( $ilInterwikiCode );
 167                                 $languageLink = [
 168                                         'href' => $languageLinkTitle->getFullURL(),
 169                                         'text' => $ilLangName,
 170                                         'title' => $ilTitle,
 171                                         'class' => $class,
 172                                         'lang' => $ilInterwikiCodeBCP47,
 173                                         'hreflang' => $ilInterwikiCodeBCP47,
 174                                 ];
 175                                 Hooks::run(
 176                                         'SkinTemplateGetLanguageLink',
 177                                         [ &$languageLink, $languageLinkTitle, $this->getTitle(), $this->getOutput() ]
 178                                 );
 179                                 $languageLinks[] = $languageLink;
 180                         }
 181                 }
 182
 183                 return $languageLinks;
 184         }
 185
 186         protected function setupTemplateForOutput() {
 187
 188                 $request = $this->getRequest();
 189                 $user = $this->getUser();
 190                 $title = $this->getTitle();
 191
 192                 $tpl = $this->setupTemplate( $this->template, 'skins' );
 193
 194                 $this->thispage = $title->getPrefixedDBkey();
 195                 $this->titletxt = $title->getPrefixedText();
 196                 $this->userpage = $user->getUserPage()->getPrefixedText();
 197                 $query = [];
 198                 if ( !$request->wasPosted() ) {
 199                         $query = $request->getValues();
 200                         unset( $query['title'] );
 201                         unset( $query['returnto'] );
 202                         unset( $query['returntoquery'] );
 203                 }
 204                 $this->thisquery = wfArrayToCgi( $query );
 205                 $this->loggedin = $user->isLoggedIn();
 206                 $this->username = $user->getName();
 207
 208                 if ( $this->loggedin ) {
 209                         $this->userpageUrlDetails = self::makeUrlDetails( $this->userpage );
 210                 } else {
 211                         # This won't be used in the standard skins, but we define it to preserve the interface
 212                         # To save time, we check for existence
 213                         $this->userpageUrlDetails = self::makeKnownUrlDetails( $this->userpage );
 214                 }
 215
 216                 return $tpl;
 217         }
 218
 219         /**
 220          * initialize various variables and generate the template
 221          *
 222          * @param OutputPage $out
 223          */
 224         function outputPage( OutputPage $out = null ) {
 225                 Profiler::instance()->setTemplated( true );
 226
 227                 $oldContext = null;
 228                 if ( $out !== null ) {
 229                         // Deprecated since 1.20, note added in 1.25
 230                         wfDeprecated( __METHOD__, '1.25' );
 231                         $oldContext = $this->getContext();
 232                         $this->setContext( $out->getContext() );
 233                 }
 234
 235                 $out = $this->getOutput();
 236
 237                 $this->initPage( $out );
 238                 $tpl = $this->prepareQuickTemplate( $out );
 239                 // execute template
 240                 $res = $tpl->execute();
 241
 242                 // result may be an error
 243                 $this->printOrError( $res );
 244
 245                 if ( $oldContext ) {
 246                         $this->setContext( $oldContext );
 247                 }
 248
 249         }
 250
 251         /**
 252          * Wrap the body text with language information and identifiable element
 253          *
 254          * @param Title $title
 255          * @return string html
 256          */
 257         protected function wrapHTML( $title, $html ) {
 258                 # An ID that includes the actual body text; without categories, contentSub, ...
 259                 $realBodyAttribs = [ 'id' => 'mw-content-text' ];
 260
 261                 # Add a mw-content-ltr/rtl class to be able to style based on text direction
 262                 # when the content is different from the UI language, i.e.:
 263                 # not for special pages or file pages AND only when viewing
 264                 if ( !in_array( $title->getNamespace(), [ NS_SPECIAL, NS_FILE ] ) &&
 265                         Action::getActionName( $this ) === 'view' ) {
 266                         $pageLang = $title->getPageViewLanguage();
 267                         $realBodyAttribs['lang'] = $pageLang->getHtmlCode();
 268                         $realBodyAttribs['dir'] = $pageLang->getDir();
 269                         $realBodyAttribs['class'] = 'mw-content-' . $pageLang->getDir();
 270                 }
 271
 272                 return Html::rawElement( 'div', $realBodyAttribs, $html );
 273         }
 274
 275         /**
 276          * initialize various variables and generate the template
 277          *
 278          * @since 1.23
 279          * @return QuickTemplate The template to be executed by outputPage
 280          */
 281         protected function prepareQuickTemplate() {
 282                 global $wgContLang, $wgScript, $wgStylePath, $wgMimeType, $wgJsMimeType,
 283                         $wgSitename, $wgLogo, $wgMaxCredits,
 284                         $wgShowCreditsIfMax, $wgArticlePath,
 285                         $wgScriptPath, $wgServer;
 286
 287                 $title = $this->getTitle();
 288                 $request = $this->getRequest();
 289                 $out = $this->getOutput();
 290                 $tpl = $this->setupTemplateForOutput();
 291
 292                 $tpl->set( 'title', $out->getPageTitle() );
 293                 $tpl->set( 'pagetitle', $out->getHTMLTitle() );
 294                 $tpl->set( 'displaytitle', $out->mPageLinkTitle );
 295
 296                 $tpl->setRef( 'thispage', $this->thispage );
 297                 $tpl->setRef( 'titleprefixeddbkey', $this->thispage );
 298                 $tpl->set( 'titletext', $title->getText() );
 299                 $tpl->set( 'articleid', $title->getArticleID() );
 300
 301                 $tpl->set( 'isarticle', $out->isArticle() );
 302
 303                 $subpagestr = $this->subPageSubtitle();
 304                 if ( $subpagestr !== '' ) {
 305                         $subpagestr = '<span class="subpages">' . $subpagestr . '</span>';
 306                 }
 307                 $tpl->set( 'subtitle', $subpagestr . $out->getSubtitle() );
 308
 309                 $undelete = $this->getUndeleteLink();
 310                 if ( $undelete === '' ) {
 311                         $tpl->set( 'undelete', '' );
 312                 } else {
 313                         $tpl->set( 'undelete', '<span class="subpages">' . $undelete . '</span>' );
 314                 }
 315
 316                 $tpl->set( 'catlinks', $this->getCategories() );
 317                 if ( $out->isSyndicated() ) {
 318                         $feeds = [];
 319                         foreach ( $out->getSyndicationLinks() as $format => $link ) {
 320                                 $feeds[$format] = [
 321                                         // Messages: feed-atom, feed-rss
 322                                         'text' => $this->msg( "feed-$format" )->text(),
 323                                         'href' => $link
 324                                 ];
 325                         }
 326                         $tpl->setRef( 'feeds', $feeds );
 327                 } else {
 328                         $tpl->set( 'feeds', false );
 329                 }
 330
 331                 $tpl->setRef( 'mimetype', $wgMimeType );
 332                 $tpl->setRef( 'jsmimetype', $wgJsMimeType );
 333                 $tpl->set( 'charset', 'UTF-8' );
 334                 $tpl->setRef( 'wgScript', $wgScript );
 335                 $tpl->setRef( 'skinname', $this->skinname );
 336                 $tpl->set( 'skinclass', get_class( $this ) );
 337                 $tpl->setRef( 'skin', $this );
 338                 $tpl->setRef( 'stylename', $this->stylename );
 339                 $tpl->set( 'printable', $out->isPrintable() );
 340                 $tpl->set( 'handheld', $request->getBool( 'handheld' ) );
 341                 $tpl->setRef( 'loggedin', $this->loggedin );
 342                 $tpl->set( 'notspecialpage', !$title->isSpecialPage() );
 343                 $tpl->set( 'searchaction', $this->escapeSearchLink() );
 344                 $tpl->set( 'searchtitle', SpecialPage::getTitleFor( 'Search' )->getPrefixedDBkey() );
 345                 $tpl->set( 'search', trim( $request->getVal( 'search' ) ) );
 346                 $tpl->setRef( 'stylepath', $wgStylePath );
 347                 $tpl->setRef( 'articlepath', $wgArticlePath );
 348                 $tpl->setRef( 'scriptpath', $wgScriptPath );
 349                 $tpl->setRef( 'serverurl', $wgServer );
 350                 $tpl->setRef( 'logopath', $wgLogo );
 351                 $tpl->setRef( 'sitename', $wgSitename );
 352
 353                 $userLang = $this->getLanguage();
 354                 $userLangCode = $userLang->getHtmlCode();
 355                 $userLangDir = $userLang->getDir();
 356
 357                 $tpl->set( 'lang', $userLangCode );
 358                 $tpl->set( 'dir', $userLangDir );
 359                 $tpl->set( 'rtl', $userLang->isRTL() );
 360
 361                 $tpl->set( 'capitalizeallnouns', $userLang->capitalizeAllNouns() ? ' capitalize-all-nouns' : '' );
 362                 $tpl->set( 'showjumplinks', true ); // showjumplinks preference has been removed
 363                 $tpl->set( 'username', $this->loggedin ? $this->username : null );
 364                 $tpl->setRef( 'userpage', $this->userpage );
 365                 $tpl->setRef( 'userpageurl', $this->userpageUrlDetails['href'] );
 366                 $tpl->set( 'userlang', $userLangCode );
 367
 368                 // Users can have their language set differently than the
 369                 // content of the wiki. For these users, tell the web browser
 370                 // that interface elements are in a different language.
 371                 $tpl->set( 'userlangattributes', '' );
 372                 $tpl->set( 'specialpageattributes', '' ); # obsolete
 373                 // Used by VectorBeta to insert HTML before content but after the
 374                 // heading for the page title. Defaults to empty string.
 375                 $tpl->set( 'prebodyhtml', '' );
 376
 377                 if ( $userLangCode !== $wgContLang->getHtmlCode() || $userLangDir !== $wgContLang->getDir() ) {
 378                         $escUserlang = htmlspecialchars( $userLangCode );
 379                         $escUserdir = htmlspecialchars( $userLangDir );
 380                         // Attributes must be in double quotes because htmlspecialchars() doesn't
 381                         // escape single quotes
 382                         $attrs = " lang=\"$escUserlang\" dir=\"$escUserdir\"";
 383                         $tpl->set( 'userlangattributes', $attrs );
 384                 }
 385
 386                 $tpl->set( 'newtalk', $this->getNewtalks() );
 387                 $tpl->set( 'logo', $this->logoText() );
 388
 389                 $tpl->set( 'copyright', false );
 390                 // No longer used
 391                 $tpl->set( 'viewcount', false );
 392                 $tpl->set( 'lastmod', false );
 393                 $tpl->set( 'credits', false );
 394                 $tpl->set( 'numberofwatchingusers', false );
 395                 if ( $out->isArticle() && $title->exists() ) {
 396                         if ( $this->isRevisionCurrent() ) {
 397                                 if ( $wgMaxCredits != 0 ) {
 398                                         $tpl->set( 'credits', Action::factory( 'credits', $this->getWikiPage(),
 399                                                 $this->getContext() )->getCredits( $wgMaxCredits, $wgShowCreditsIfMax ) );
 400                                 } else {
 401                                         $tpl->set( 'lastmod', $this->lastModified() );
 402                                 }
 403                         }
 404                         $tpl->set( 'copyright', $this->getCopyright() );
 405                 }
 406
 407                 $tpl->set( 'copyrightico', $this->getCopyrightIcon() );
 408                 $tpl->set( 'poweredbyico', $this->getPoweredBy() );
 409                 $tpl->set( 'disclaimer', $this->disclaimerLink() );
 410                 $tpl->set( 'privacy', $this->privacyLink() );
 411                 $tpl->set( 'about', $this->aboutLink() );
 412
 413                 $tpl->set( 'footerlinks', [
 414                         'info' => [
 415                                 'lastmod',
 416                                 'numberofwatchingusers',
 417                                 'credits',
 418                                 'copyright',
 419                         ],
 420                         'places' => [
 421                                 'privacy',
 422                                 'about',
 423                                 'disclaimer',
 424                         ],
 425                 ] );
 426
 427                 global $wgFooterIcons;
 428                 $tpl->set( 'footericons', $wgFooterIcons );
 429                 foreach ( $tpl->data['footericons'] as $footerIconsKey => &$footerIconsBlock ) {
 430                         if ( count( $footerIconsBlock ) > 0 ) {
 431                                 foreach ( $footerIconsBlock as &$footerIcon ) {
 432                                         if ( isset( $footerIcon['src'] ) ) {
 433                                                 if ( !isset( $footerIcon['width'] ) ) {
 434                                                         $footerIcon['width'] = 88;
 435                                                 }
 436                                                 if ( !isset( $footerIcon['height'] ) ) {
 437                                                         $footerIcon['height'] = 31;
 438                                                 }
 439                                         }
 440                                 }
 441                         } else {
 442                                 unset( $tpl->data['footericons'][$footerIconsKey] );
 443                         }
 444                 }
 445
 446                 $tpl->set( 'indicators', $out->getIndicators() );
 447
 448                 $tpl->set( 'sitenotice', $this->getSiteNotice() );
 449                 $tpl->set( 'bottomscripts', $this->bottomScripts() );
 450                 $tpl->set( 'printfooter', $this->printSource() );
 451                 // Wrap the bodyText with #mw-content-text element
 452                 $out->mBodytext = $this->wrapHTML( $title, $out->mBodytext );
 453                 $tpl->setRef( 'bodytext', $out->mBodytext );
 454
 455                 $language_urls = $this->getLanguages();
 456                 if ( count( $language_urls ) ) {
 457                         $tpl->setRef( 'language_urls', $language_urls );
 458                 } else {
 459                         $tpl->set( 'language_urls', false );
 460                 }
 461
 462                 # Personal toolbar
 463                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 464                 $content_navigation = $this->buildContentNavigationUrls();
 465                 $content_actions = $this->buildContentActionUrls( $content_navigation );
 466                 $tpl->setRef( 'content_navigation', $content_navigation );
 467                 $tpl->setRef( 'content_actions', $content_actions );
 468
 469                 $tpl->set( 'sidebar', $this->buildSidebar() );
 470                 $tpl->set( 'nav_urls', $this->buildNavUrls() );
 471
 472                 // Set the head scripts near the end, in case the above actions resulted in added scripts
 473                 $tpl->set( 'headelement', $out->headElement( $this ) );
 474
 475                 $tpl->set( 'debug', '' );
 476                 $tpl->set( 'debughtml', $this->generateDebugHTML() );
 477                 $tpl->set( 'reporttime', wfReportTime() );
 478
 479                 // original version by hansm
 480                 if ( !Hooks::run( 'SkinTemplateOutputPageBeforeExec', [ &$this, &$tpl ] ) ) {
 481                         wfDebug( __METHOD__ . ": Hook SkinTemplateOutputPageBeforeExec broke outputPage execution!\n" );
 482                 }
 483
 484                 // Set the bodytext to another key so that skins can just output it on its own
 485                 // and output printfooter and debughtml separately
 486                 $tpl->set( 'bodycontent', $tpl->data['bodytext'] );
 487
 488                 // Append printfooter and debughtml onto bodytext so that skins that
 489                 // were already using bodytext before they were split out don't suddenly
 490                 // start not outputting information.
 491                 $tpl->data['bodytext'] .= Html::rawElement(
 492                         'div',
 493                         [ 'class' => 'printfooter' ],
 494                         "\n{$tpl->data['printfooter']}"
 495                 ) . "\n";
 496                 $tpl->data['bodytext'] .= $tpl->data['debughtml'];
 497
 498                 // allow extensions adding stuff after the page content.
 499                 // See Skin::afterContentHook() for further documentation.
 500                 $tpl->set( 'dataAfterContent', $this->afterContentHook() );
 501
 502                 return $tpl;
 503         }
 504
 505         /**
 506          * Get the HTML for the p-personal list
 507          * @return string
 508          */
 509         public function getPersonalToolsList() {
 510                 $tpl = $this->setupTemplateForOutput();
 511                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 512                 $html = '';
 513                 foreach ( $tpl->getPersonalTools() as $key => $item ) {
 514                         $html .= $tpl->makeListItem( $key, $item );
 515                 }
 516                 return $html;
 517         }
 518
 519         /**
 520          * Format language name for use in sidebar interlanguage links list.
 521          * By default it is capitalized.
 522          *
 523          * @param string $name Language name, e.g. "English" or "español"
 524          * @return string
 525          * @private
 526          */
 527         function formatLanguageName( $name ) {
 528                 return $this->getLanguage()->ucfirst( $name );
 529         }
 530
 531         /**
 532          * Output the string, or print error message if it's
 533          * an error object of the appropriate type.
 534          * For the base class, assume strings all around.
 535          *
 536          * @param string $str
 537          * @private
 538          */
 539         function printOrError( $str ) {
 540                 echo $str;
 541         }
 542
 543         /**
 544          * Output a boolean indicating if buildPersonalUrls should output separate
 545          * login and create account links or output a combined link
 546          * By default we simply return a global config setting that affects most skins
 547          * This is setup as a method so that like with $wgLogo and getLogo() a skin
 548          * can override this setting and always output one or the other if it has
 549          * a reason it can't output one of the two modes.
 550          * @return bool
 551          */
 552         function useCombinedLoginLink() {
 553                 global $wgUseCombinedLoginLink;
 554                 return $wgUseCombinedLoginLink;
 555         }
 556
 557         /**
 558          * build array of urls for personal toolbar
 559          * @return array
 560          */
 561         protected function buildPersonalUrls() {
 562                 $title = $this->getTitle();
 563                 $request = $this->getRequest();
 564                 $pageurl = $title->getLocalURL();
 565
 566                 /* set up the default links for the personal toolbar */
 567                 $personal_urls = [];
 568
 569                 # Due to bug 32276, if a user does not have read permissions,
 570                 # $this->getTitle() will just give Special:Badtitle, which is
 571                 # not especially useful as a returnto parameter. Use the title
 572                 # from the request instead, if there was one.
 573                 if ( $this->getUser()->isAllowed( 'read' ) ) {
 574                         $page = $this->getTitle();
 575                 } else {
 576                         $page = Title::newFromText( $request->getVal( 'title', '' ) );
 577                 }
 578                 $page = $request->getVal( 'returnto', $page );
 579                 $a = [];
 580                 if ( strval( $page ) !== '' ) {
 581                         $a['returnto'] = $page;
 582                         $query = $request->getVal( 'returntoquery', $this->thisquery );
 583                         if ( $query != '' ) {
 584                                 $a['returntoquery'] = $query;
 585                         }
 586                 }
 587
 588                 $returnto = wfArrayToCgi( $a );
 589                 if ( $this->loggedin ) {
 590                         $personal_urls['userpage'] = [
 591                                 'text' => $this->username,
 592                                 'href' => &$this->userpageUrlDetails['href'],
 593                                 'class' => $this->userpageUrlDetails['exists'] ? false : 'new',
 594                                 'active' => ( $this->userpageUrlDetails['href'] == $pageurl ),
 595                                 'dir' => 'auto'
 596                         ];
 597                         $usertalkUrlDetails = $this->makeTalkUrlDetails( $this->userpage );
 598                         $personal_urls['mytalk'] = [
 599                                 'text' => $this->msg( 'mytalk' )->text(),
 600                                 'href' => &$usertalkUrlDetails['href'],
 601                                 'class' => $usertalkUrlDetails['exists'] ? false : 'new',
 602                                 'active' => ( $usertalkUrlDetails['href'] == $pageurl )
 603                         ];
 604                         $href = self::makeSpecialUrl( 'Preferences' );
 605                         $personal_urls['preferences'] = [
 606                                 'text' => $this->msg( 'mypreferences' )->text(),
 607                                 'href' => $href,
 608                                 'active' => ( $href == $pageurl )
 609                         ];
 610
 611                         if ( $this->getUser()->isAllowed( 'viewmywatchlist' ) ) {
 612                                 $href = self::makeSpecialUrl( 'Watchlist' );
 613                                 $personal_urls['watchlist'] = [
 614                                         'text' => $this->msg( 'mywatchlist' )->text(),
 615                                         'href' => $href,
 616                                         'active' => ( $href == $pageurl )
 617                                 ];
 618                         }
 619
 620                         # We need to do an explicit check for Special:Contributions, as we
 621                         # have to match both the title, and the target, which could come
 622                         # from request values (Special:Contributions?target=Jimbo_Wales)
 623                         # or be specified in "sub page" form
 624                         # (Special:Contributions/Jimbo_Wales). The plot
 625                         # thickens, because the Title object is altered for special pages,
 626                         # so it doesn't contain the original alias-with-subpage.
 627                         $origTitle = Title::newFromText( $request->getText( 'title' ) );
 628                         if ( $origTitle instanceof Title && $origTitle->isSpecialPage() ) {
 629                                 list( $spName, $spPar ) = SpecialPageFactory::resolveAlias( $origTitle->getText() );
 630                                 $active = $spName == 'Contributions'
 631                                         && ( ( $spPar && $spPar == $this->username )
 632                                                 || $request->getText( 'target' ) == $this->username );
 633                         } else {
 634                                 $active = false;
 635                         }
 636
 637                         $href = self::makeSpecialUrlSubpage( 'Contributions', $this->username );
 638                         $personal_urls['mycontris'] = [
 639                                 'text' => $this->msg( 'mycontris' )->text(),
 640                                 'href' => $href,
 641                                 'active' => $active
 642                         ];
 643                         $personal_urls['logout'] = [
 644                                 'text' => $this->msg( 'pt-userlogout' )->text(),
 645                                 'href' => self::makeSpecialUrl( 'Userlogout',
 646                                         // userlogout link must always contain an & character, otherwise we might not be able
 647                                         // to detect a buggy precaching proxy (bug 17790)
 648                                         $title->isSpecial( 'Preferences' ) ? 'noreturnto' : $returnto
 649                                 ),
 650                                 'active' => false
 651                         ];
 652                 } else {
 653                         // No need to show Talk and Contributions to anons if they can't contribute!
 654                         if ( User::groupHasPermission( '*', 'edit' ) ) {
 655
 656                                 // Because of caching, we can't link directly to the anonymous
 657                                 // user page (for example [[User:127.0.0.1]]), talk page, and
 658                                 // contributions pages. Instead we use the special page
 659                                 // shortcuts (which work correctly regardless of caching). This
 660                                 // means we can't determine whether these links are active or
 661                                 // not, but since major skins (MonoBook, Vector) don't use this
 662                                 // information, it's not a huge loss.
 663
 664                                 // Only show (red) link to anon user page if anon users are
 665                                 // allowed to create that page
 666                                 if ( User::groupHasPermission( '*', 'createpage' ) ) {
 667                                         $personal_urls[ 'anonuserpage' ] = [
 668                                                 'text'   => $this->msg( 'anonuserpage' )->text(),
 669                                                 'href'   => self::makeSpecialUrlSubpage( 'Mypage', false ),
 670                                                 'active' => false
 671                                         ];
 672                                 }
 673
 674                                 $personal_urls['anontalk'] = [
 675                                         'text' => $this->msg( 'anontalk' )->text(),
 676                                         'href' => self::makeSpecialUrlSubpage( 'Mytalk', false ),
 677                                         'active' => false
 678                                 ];
 679
 680                                 $personal_urls['anoncontribs'] = [
 681                                         'text' => $this->msg( 'anoncontribs' )->text(),
 682                                         'href' => self::makeSpecialUrlSubpage( 'Mycontributions', false ),
 683                                         'active' => false
 684                                 ];
 685                         }
 686
 687                         $is_signup = $request->getText( 'type' ) === 'signup';
 688
 689                         if ( $this->getUser()->isAllowed( 'createaccount' ) && !( $this->useCombinedLoginLink() ) ) {
 690                                 $personal_urls[ 'createaccount' ] = [
 691                                         'text' => $this->msg( 'pt-createaccount' )->text(),
 692                                         'href' => self::makeSpecialUrl( 'Userlogin', "$returnto&type=signup" ),
 693                                         'active' => $title->isSpecial( 'Userlogin' ) && $is_signup,
 694                                 ];
 695                         }
 696
 697                         $personal_urls['login'] = [
 698                                 'text' => $this->msg( 'pt-login' )->text(),
 699                                 'href' => self::makeSpecialUrl( 'Userlogin', $returnto ),
 700                                 'active' => $title->isSpecial( 'Userlogin' ) && !$is_signup,
 701                         ];
 702                 }
 703
 704                 Hooks::run( 'PersonalUrls', [ &$personal_urls, &$title, $this ] );
 705                 return $personal_urls;
 706         }
 707
 708         /**
 709          * Builds an array with tab definition
 710          *
 711          * @param Title $title Page Where the tab links to
 712          * @param string|array $message Message key or an array of message keys (will fall back)
 713          * @param bool $selected Display the tab as selected
 714          * @param string $query Query string attached to tab URL
 715          * @param bool $checkEdit Check if $title exists and mark with .new if one doesn't
 716          *
 717          * @return array
 718          */
 719         function tabAction( $title, $message, $selected, $query = '', $checkEdit = false ) {
 720                 $classes = [];
 721                 if ( $selected ) {
 722                         $classes[] = 'selected';
 723                 }
 724                 if ( $checkEdit && !$title->isKnown() ) {
 725                         $classes[] = 'new';
 726                         if ( $query !== '' ) {
 727                                 $query = 'action=edit&redlink=1&' . $query;
 728                         } else {
 729                                 $query = 'action=edit&redlink=1';
 730                         }
 731                 }
 732
 733                 // wfMessageFallback will nicely accept $message as an array of fallbacks
 734                 // or just a single key
 735                 $msg = wfMessageFallback( $message )->setContext( $this->getContext() );
 736                 if ( is_array( $message ) ) {
 737                         // for hook compatibility just keep the last message name
 738                         $message = end( $message );
 739                 }
 740                 if ( $msg->exists() ) {
 741                         $text = $msg->text();
 742                 } else {
 743                         global $wgContLang;
 744                         $text = $wgContLang->getConverter()->convertNamespace(
 745                                 MWNamespace::getSubject( $title->getNamespace() ) );
 746                 }
 747
 748                 $result = [];
 749                 if ( !Hooks::run( 'SkinTemplateTabAction', [ &$this,
 750                                 $title, $message, $selected, $checkEdit,
 751                                 &$classes, &$query, &$text, &$result ] ) ) {
 752                         return $result;
 753                 }
 754
 755                 return [
 756                         'class' => implode( ' ', $classes ),
 757                         'text' => $text,
 758                         'href' => $title->getLocalURL( $query ),
 759                         'primary' => true ];
 760         }
 761
 762         function makeTalkUrlDetails( $name, $urlaction = '' ) {
 763                 $title = Title::newFromText( $name );
 764                 if ( !is_object( $title ) ) {
 765                         throw new MWException( __METHOD__ . " given invalid pagename $name" );
 766                 }
 767                 $title = $title->getTalkPage();
 768                 self::checkTitle( $title, $name );
 769                 return [
 770                         'href' => $title->getLocalURL( $urlaction ),
 771                         'exists' => $title->isKnown(),
 772                 ];
 773         }
 774
 775         /**
 776          * @todo is this even used?
 777          */
 778         function makeArticleUrlDetails( $name, $urlaction = '' ) {
 779                 $title = Title::newFromText( $name );
 780                 $title = $title->getSubjectPage();
 781                 self::checkTitle( $title, $name );
 782                 return [
 783                         'href' => $title->getLocalURL( $urlaction ),
 784                         'exists' => $title->exists(),
 785                 ];
 786         }
 787
 788         /**
 789          * a structured array of links usually used for the tabs in a skin
 790          *
 791          * There are 4 standard sections
 792          * namespaces: Used for namespace tabs like special, page, and talk namespaces
 793          * views: Used for primary page views like read, edit, history
 794          * actions: Used for most extra page actions like deletion, protection, etc...
 795          * variants: Used to list the language variants for the page
 796          *
 797          * Each section's value is a key/value array of links for that section.
 798          * The links themselves have these common keys:
 799          * - class: The css classes to apply to the tab
 800          * - text: The text to display on the tab
 801          * - href: The href for the tab to point to
 802          * - rel: An optional rel= for the tab's link
 803          * - redundant: If true the tab will be dropped in skins using content_actions
 804          *   this is useful for tabs like "Read" which only have meaning in skins that
 805          *   take special meaning from the grouped structure of content_navigation
 806          *
 807          * Views also have an extra key which can be used:
 808          * - primary: If this is not true skins like vector may try to hide the tab
 809          *            when the user has limited space in their browser window
 810          *
 811          * content_navigation using code also expects these ids to be present on the
 812          * links, however these are usually automatically generated by SkinTemplate
 813          * itself and are not necessary when using a hook. The only things these may
 814          * matter to are people modifying content_navigation after it's initial creation:
 815          * - id: A "preferred" id, most skins are best off outputting this preferred
 816          *   id for best compatibility.
 817          * - tooltiponly: This is set to true for some tabs in cases where the system
 818          *   believes that the accesskey should not be added to the tab.
 819          *
 820          * @return array
 821          */
 822         protected function buildContentNavigationUrls() {
 823                 global $wgDisableLangConversion;
 824
 825                 // Display tabs for the relevant title rather than always the title itself
 826                 $title = $this->getRelevantTitle();
 827                 $onPage = $title->equals( $this->getTitle() );
 828
 829                 $out = $this->getOutput();
 830                 $request = $this->getRequest();
 831                 $user = $this->getUser();
 832
 833                 $content_navigation = [
 834                         'namespaces' => [],
 835                         'views' => [],
 836                         'actions' => [],
 837                         'variants' => []
 838                 ];
 839
 840                 // parameters
 841                 $action = $request->getVal( 'action', 'view' );
 842
 843                 $userCanRead = $title->quickUserCan( 'read', $user );
 844
 845                 $preventActiveTabs = false;
 846                 Hooks::run( 'SkinTemplatePreventOtherActiveTabs', [ &$this, &$preventActiveTabs ] );
 847
 848                 // Checks if page is some kind of content
 849                 if ( $title->canExist() ) {
 850                         // Gets page objects for the related namespaces
 851                         $subjectPage = $title->getSubjectPage();
 852                         $talkPage = $title->getTalkPage();
 853
 854                         // Determines if this is a talk page
 855                         $isTalk = $title->isTalkPage();
 856
 857                         // Generates XML IDs from namespace names
 858                         $subjectId = $title->getNamespaceKey( '' );
 859
 860                         if ( $subjectId == 'main' ) {
 861                                 $talkId = 'talk';
 862                         } else {
 863                                 $talkId = "{$subjectId}_talk";
 864                         }
 865
 866                         $skname = $this->skinname;
 867
 868                         // Adds namespace links
 869                         $subjectMsg = [ "nstab-$subjectId" ];
 870                         if ( $subjectPage->isMainPage() ) {
 871                                 array_unshift( $subjectMsg, 'mainpage-nstab' );
 872                         }
 873                         $content_navigation['namespaces'][$subjectId] = $this->tabAction(
 874                                 $subjectPage, $subjectMsg, !$isTalk && !$preventActiveTabs, '', $userCanRead
 875                         );
 876                         $content_navigation['namespaces'][$subjectId]['context'] = 'subject';
 877                         $content_navigation['namespaces'][$talkId] = $this->tabAction(
 878                                 $talkPage, [ "nstab-$talkId", 'talk' ], $isTalk && !$preventActiveTabs, '', $userCanRead
 879                         );
 880                         $content_navigation['namespaces'][$talkId]['context'] = 'talk';
 881
 882                         if ( $userCanRead ) {
 883                                 $isForeignFile = $title->inNamespace( NS_FILE ) && $this->canUseWikiPage() &&
 884                                         $this->getWikiPage() instanceof WikiFilePage && !$this->getWikiPage()->isLocal();
 885
 886                                 // Adds view view link
 887                                 if ( $title->exists() || $isForeignFile ) {
 888                                         $content_navigation['views']['view'] = $this->tabAction(
 889                                                 $isTalk ? $talkPage : $subjectPage,
 890                                                 [ "$skname-view-view", 'view' ],
 891                                                 ( $onPage && ( $action == 'view' || $action == 'purge' ) ), '', true
 892                                         );
 893                                         // signal to hide this from simple content_actions
 894                                         $content_navigation['views']['view']['redundant'] = true;
 895                                 }
 896
 897                                 // If it is a non-local file, show a link to the file in its own repository
 898                                 if ( $isForeignFile ) {
 899                                         $file = $this->getWikiPage()->getFile();
 900                                         $content_navigation['views']['view-foreign'] = [
 901                                                 'class' => '',
 902                                                 'text' => wfMessageFallback( "$skname-view-foreign", 'view-foreign' )->
 903                                                         setContext( $this->getContext() )->
 904                                                         params( $file->getRepo()->getDisplayName() )->text(),
 905                                                 'href' => $file->getDescriptionUrl(),
 906                                                 'primary' => false,
 907                                         ];
 908                                 }
 909
 910                                 // Checks if user can edit the current page if it exists or create it otherwise
 911                                 if ( $title->quickUserCan( 'edit', $user )
 912                                         && ( $title->exists() || $title->quickUserCan( 'create', $user ) )
 913                                 ) {
 914                                         // Builds CSS class for talk page links
 915                                         $isTalkClass = $isTalk ? ' istalk' : '';
 916                                         // Whether the user is editing the page
 917                                         $isEditing = $onPage && ( $action == 'edit' || $action == 'submit' );
 918                                         // Whether to show the "Add a new section" tab
 919                                         // Checks if this is a current rev of talk page and is not forced to be hidden
 920                                         $showNewSection = !$out->forceHideNewSectionLink()
 921                                                 && ( ( $isTalk && $this->isRevisionCurrent() ) || $out->showNewSectionLink() );
 922                                         $section = $request->getVal( 'section' );
 923
 924                                         if ( $title->exists()
 925                                                 || ( $title->getNamespace() == NS_MEDIAWIKI
 926                                                         && $title->getDefaultMessageText() !== false
 927                                                 )
 928                                         ) {
 929                                                 $msgKey = $isForeignFile ? 'edit-local' : 'edit';
 930                                         } else {
 931                                                 $msgKey = $isForeignFile ? 'create-local' : 'create';
 932                                         }
 933                                         $content_navigation['views']['edit'] = [
 934                                                 'class' => ( $isEditing && ( $section !== 'new' || !$showNewSection )
 935                                                         ? 'selected'
 936                                                         : ''
 937                                                 ) . $isTalkClass,
 938                                                 'text' => wfMessageFallback( "$skname-view-$msgKey", $msgKey )
 939                                                         ->setContext( $this->getContext() )->text(),
 940                                                 'href' => $title->getLocalURL( $this->editUrlOptions() ),
 941                                                 'primary' => !$isForeignFile, // don't collapse this in vector
 942                                         ];
 943
 944                                         // section link
 945                                         if ( $showNewSection ) {
 946                                                 // Adds new section link
 947                                                 // $content_navigation['actions']['addsection']
 948                                                 $content_navigation['views']['addsection'] = [
 949                                                         'class' => ( $isEditing && $section == 'new' ) ? 'selected' : false,
 950                                                         'text' => wfMessageFallback( "$skname-action-addsection", 'addsection' )
 951                                                                 ->setContext( $this->getContext() )->text(),
 952                                                         'href' => $title->getLocalURL( 'action=edit&section=new' )
 953                                                 ];
 954                                         }
 955                                 // Checks if the page has some kind of viewable content
 956                                 } elseif ( $title->hasSourceText() ) {
 957                                         // Adds view source view link
 958                                         $content_navigation['views']['viewsource'] = [
 959                                                 'class' => ( $onPage && $action == 'edit' ) ? 'selected' : false,
 960                                                 'text' => wfMessageFallback( "$skname-action-viewsource", 'viewsource' )
 961                                                         ->setContext( $this->getContext() )->text(),
 962                                                 'href' => $title->getLocalURL( $this->editUrlOptions() ),
 963                                                 'primary' => true, // don't collapse this in vector
 964                                         ];
 965                                 }
 966
 967                                 // Checks if the page exists
 968                                 if ( $title->exists() ) {
 969                                         // Adds history view link
 970                                         $content_navigation['views']['history'] = [
 971                                                 'class' => ( $onPage && $action == 'history' ) ? 'selected' : false,
 972                                                 'text' => wfMessageFallback( "$skname-view-history", 'history_short' )
 973                                                         ->setContext( $this->getContext() )->text(),
 974                                                 'href' => $title->getLocalURL( 'action=history' ),
 975                                         ];
 976
 977                                         if ( $title->quickUserCan( 'delete', $user ) ) {
 978                                                 $content_navigation['actions']['delete'] = [
 979                                                         'class' => ( $onPage && $action == 'delete' ) ? 'selected' : false,
 980                                                         'text' => wfMessageFallback( "$skname-action-delete", 'delete' )
 981                                                                 ->setContext( $this->getContext() )->text(),
 982                                                         'href' => $title->getLocalURL( 'action=delete' )
 983                                                 ];
 984                                         }
 985
 986                                         if ( $title->quickUserCan( 'move', $user ) ) {
 987                                                 $moveTitle = SpecialPage::getTitleFor( 'Movepage', $title->getPrefixedDBkey() );
 988                                                 $content_navigation['actions']['move'] = [
 989                                                         'class' => $this->getTitle()->isSpecial( 'Movepage' ) ? 'selected' : false,
 990                                                         'text' => wfMessageFallback( "$skname-action-move", 'move' )
 991                                                                 ->setContext( $this->getContext() )->text(),
 992                                                         'href' => $moveTitle->getLocalURL()
 993                                                 ];
 994                                         }
 995                                 } else {
 996                                         // article doesn't exist or is deleted
 997                                         if ( $user->isAllowed( 'deletedhistory' ) ) {
 998                                                 $n = $title->isDeleted();
 999                                                 if ( $n ) {
1000                                                         $undelTitle = SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedDBkey() );
1001                                                         // If the user can't undelete but can view deleted
1002                                                         // history show them a "View .. deleted" tab instead.
1003                                                         $msgKey = $user->isAllowed( 'undelete' ) ? 'undelete' : 'viewdeleted';
1004                                                         $content_navigation['actions']['undelete'] = [
1005                                                                 'class' => $this->getTitle()->isSpecial( 'Undelete' ) ? 'selected' : false,
1006                                                                 'text' => wfMessageFallback( "$skname-action-$msgKey", "{$msgKey}_short" )
1007                                                                         ->setContext( $this->getContext() )->numParams( $n )->text(),
1008                                                                 'href' => $undelTitle->getLocalURL()
1009                                                         ];
1010                                                 }
1011                                         }
1012                                 }
1013
1014                                 if ( $title->quickUserCan( 'protect', $user ) && $title->getRestrictionTypes() &&
1015                                         MWNamespace::getRestrictionLevels( $title->getNamespace(), $user ) !== [ '' ]
1016                                 ) {
1017                                         $mode = $title->isProtected() ? 'unprotect' : 'protect';
1018                                         $content_navigation['actions'][$mode] = [
1019                                                 'class' => ( $onPage && $action == $mode ) ? 'selected' : false,
1020                                                 'text' => wfMessageFallback( "$skname-action-$mode", $mode )
1021                                                         ->setContext( $this->getContext() )->text(),
1022                                                 'href' => $title->getLocalURL( "action=$mode" )
1023                                         ];
1024                                 }
1025
1026                                 // Checks if the user is logged in
1027                                 if ( $this->loggedin && $user->isAllowedAll( 'viewmywatchlist', 'editmywatchlist' ) ) {
1028                                         /**
1029                                          * The following actions use messages which, if made particular to
1030                                          * the any specific skins, would break the Ajax code which makes this
1031                                          * action happen entirely inline. OutputPage::getJSVars
1032                                          * defines a set of messages in a javascript object - and these
1033                                          * messages are assumed to be global for all skins. Without making
1034                                          * a change to that procedure these messages will have to remain as
1035                                          * the global versions.
1036                                          */
1037                                         $mode = $user->isWatched( $title ) ? 'unwatch' : 'watch';
1038                                         $content_navigation['actions'][$mode] = [
1039                                                 'class' => 'mw-watchlink ' . (
1040                                                         $onPage && ( $action == 'watch' || $action == 'unwatch' ) ? 'selected' : ''
1041                                                 ),
1042                                                 // uses 'watch' or 'unwatch' message
1043                                                 'text' => $this->msg( $mode )->text(),
1044                                                 'href' => $title->getLocalURL( [ 'action' => $mode ] )
1045                                         ];
1046                                 }
1047                         }
1048
1049                         Hooks::run( 'SkinTemplateNavigation', [ &$this, &$content_navigation ] );
1050
1051                         if ( $userCanRead && !$wgDisableLangConversion ) {
1052                                 $pageLang = $title->getPageLanguage();
1053                                 // Gets list of language variants
1054                                 $variants = $pageLang->getVariants();
1055                                 // Checks that language conversion is enabled and variants exist
1056                                 // And if it is not in the special namespace
1057                                 if ( count( $variants ) > 1 ) {
1058                                         // Gets preferred variant (note that user preference is
1059                                         // only possible for wiki content language variant)
1060                                         $preferred = $pageLang->getPreferredVariant();
1061                                         if ( Action::getActionName( $this ) === 'view' ) {
1062                                                 $params = $request->getQueryValues();
1063                                                 unset( $params['title'] );
1064                                         } else {
1065                                                 $params = [];
1066                                         }
1067                                         // Loops over each variant
1068                                         foreach ( $variants as $code ) {
1069                                                 // Gets variant name from language code
1070                                                 $varname = $pageLang->getVariantname( $code );
1071                                                 // Appends variant link
1072                                                 $content_navigation['variants'][] = [
1073                                                         'class' => ( $code == $preferred ) ? 'selected' : false,
1074                                                         'text' => $varname,
1075                                                         'href' => $title->getLocalURL( [ 'variant' => $code ] + $params ),
1076                                                         'lang' => wfBCP47( $code ),
1077                                                         'hreflang' => wfBCP47( $code ),
1078                                                 ];
1079                                         }
1080                                 }
1081                         }
1082                 } else {
1083                         // If it's not content, it's got to be a special page
1084                         $content_navigation['namespaces']['special'] = [
1085                                 'class' => 'selected',
1086                                 'text' => $this->msg( 'nstab-special' )->text(),
1087                                 'href' => $request->getRequestURL(), // @see: bug 2457, bug 2510
1088                                 'context' => 'subject'
1089                         ];
1090
1091                         Hooks::run( 'SkinTemplateNavigation::SpecialPage',
1092                                 [ &$this, &$content_navigation ] );
1093                 }
1094
1095                 // Equiv to SkinTemplateContentActions
1096                 Hooks::run( 'SkinTemplateNavigation::Universal', [ &$this, &$content_navigation ] );
1097
1098                 // Setup xml ids and tooltip info
1099                 foreach ( $content_navigation as $section => &$links ) {
1100                         foreach ( $links as $key => &$link ) {
1101                                 $xmlID = $key;
1102                                 if ( isset( $link['context'] ) && $link['context'] == 'subject' ) {
1103                                         $xmlID = 'ca-nstab-' . $xmlID;
1104                                 } elseif ( isset( $link['context'] ) && $link['context'] == 'talk' ) {
1105                                         $xmlID = 'ca-talk';
1106                                         $link['rel'] = 'discussion';
1107                                 } elseif ( $section == 'variants' ) {
1108                                         $xmlID = 'ca-varlang-' . $xmlID;
1109                                 } else {
1110                                         $xmlID = 'ca-' . $xmlID;
1111                                 }
1112                                 $link['id'] = $xmlID;
1113                         }
1114                 }
1115
1116                 # We don't want to give the watch tab an accesskey if the
1117                 # page is being edited, because that conflicts with the
1118                 # accesskey on the watch checkbox.  We also don't want to
1119                 # give the edit tab an accesskey, because that's fairly
1120                 # superfluous and conflicts with an accesskey (Ctrl-E) often
1121                 # used for editing in Safari.
1122                 if ( in_array( $action, [ 'edit', 'submit' ] ) ) {
1123                         if ( isset( $content_navigation['views']['edit'] ) ) {
1124                                 $content_navigation['views']['edit']['tooltiponly'] = true;
1125                         }
1126                         if ( isset( $content_navigation['actions']['watch'] ) ) {
1127                                 $content_navigation['actions']['watch']['tooltiponly'] = true;
1128                         }
1129                         if ( isset( $content_navigation['actions']['unwatch'] ) ) {
1130                                 $content_navigation['actions']['unwatch']['tooltiponly'] = true;
1131                         }
1132                 }
1133
1134                 return $content_navigation;
1135         }
1136
1137         /**
1138          * an array of edit links by default used for the tabs
1139          * @param array $content_navigation
1140          * @return array
1141          */
1142         private function buildContentActionUrls( $content_navigation ) {
1143
1144                 // content_actions has been replaced with content_navigation for backwards
1145                 // compatibility and also for skins that just want simple tabs content_actions
1146                 // is now built by flattening the content_navigation arrays into one
1147
1148                 $content_actions = [];
1149
1150                 foreach ( $content_navigation as $links ) {
1151                         foreach ( $links as $key => $value ) {
1152                                 if ( isset( $value['redundant'] ) && $value['redundant'] ) {
1153                                         // Redundant tabs are dropped from content_actions
1154                                         continue;
1155                                 }
1156
1157                                 // content_actions used to have ids built using the "ca-$key" pattern
1158                                 // so the xmlID based id is much closer to the actual $key that we want
1159                                 // for that reason we'll just strip out the ca- if present and use
1160                                 // the latter potion of the "id" as the $key
1161                                 if ( isset( $value['id'] ) && substr( $value['id'], 0, 3 ) == 'ca-' ) {
1162                                         $key = substr( $value['id'], 3 );
1163                                 }
1164
1165                                 if ( isset( $content_actions[$key] ) ) {
1166                                         wfDebug( __METHOD__ . ": Found a duplicate key for $key while flattening " .
1167                                                 "content_navigation into content_actions.\n" );
1168                                         continue;
1169                                 }
1170
1171                                 $content_actions[$key] = $value;
1172                         }
1173                 }
1174
1175                 return $content_actions;
1176         }
1177
1178         /**
1179          * build array of common navigation links
1180          * @return array
1181          */
1182         protected function buildNavUrls() {
1183                 global $wgUploadNavigationUrl;
1184
1185                 $out = $this->getOutput();
1186                 $request = $this->getRequest();
1187
1188                 $nav_urls = [];
1189                 $nav_urls['mainpage'] = [ 'href' => self::makeMainPageUrl() ];
1190                 if ( $wgUploadNavigationUrl ) {
1191                         $nav_urls['upload'] = [ 'href' => $wgUploadNavigationUrl ];
1192                 } elseif ( UploadBase::isEnabled() && UploadBase::isAllowed( $this->getUser() ) === true ) {
1193                         $nav_urls['upload'] = [ 'href' => self::makeSpecialUrl( 'Upload' ) ];
1194                 } else {
1195                         $nav_urls['upload'] = false;
1196                 }
1197                 $nav_urls['specialpages'] = [ 'href' => self::makeSpecialUrl( 'Specialpages' ) ];
1198
1199                 $nav_urls['print'] = false;
1200                 $nav_urls['permalink'] = false;
1201                 $nav_urls['info'] = false;
1202                 $nav_urls['whatlinkshere'] = false;
1203                 $nav_urls['recentchangeslinked'] = false;
1204                 $nav_urls['contributions'] = false;
1205                 $nav_urls['log'] = false;
1206                 $nav_urls['blockip'] = false;
1207                 $nav_urls['emailuser'] = false;
1208                 $nav_urls['userrights'] = false;
1209
1210                 // A print stylesheet is attached to all pages, but nobody ever
1211                 // figures that out. :)  Add a link...
1212                 if ( !$out->isPrintable() && ( $out->isArticle() || $this->getTitle()->isSpecialPage() ) ) {
1213                         $nav_urls['print'] = [
1214                                 'text' => $this->msg( 'printableversion' )->text(),
1215                                 'href' => $this->getTitle()->getLocalURL(
1216                                         $request->appendQueryValue( 'printable', 'yes' ) )
1217                         ];
1218                 }
1219
1220                 if ( $out->isArticle() ) {
1221                         // Also add a "permalink" while we're at it
1222                         $revid = $this->getRevisionId();
1223                         if ( $revid ) {
1224                                 $nav_urls['permalink'] = [
1225                                         'text' => $this->msg( 'permalink' )->text(),
1226                                         'href' => $this->getTitle()->getLocalURL( "oldid=$revid" )
1227                                 ];
1228                         }
1229
1230                         // Use the copy of revision ID in case this undocumented, shady hook tries to mess with internals
1231                         Hooks::run( 'SkinTemplateBuildNavUrlsNav_urlsAfterPermalink',
1232                                 [ &$this, &$nav_urls, &$revid, &$revid ] );
1233                 }
1234
1235                 if ( $out->isArticleRelated() ) {
1236                         $nav_urls['whatlinkshere'] = [
1237                                 'href' => SpecialPage::getTitleFor( 'Whatlinkshere', $this->thispage )->getLocalURL()
1238                         ];
1239
1240                         $nav_urls['info'] = [
1241                                 'text' => $this->msg( 'pageinfo-toolboxlink' )->text(),
1242                                 'href' => $this->getTitle()->getLocalURL( "action=info" )
1243                         ];
1244
1245                         if ( $this->getTitle()->exists() ) {
1246                                 $nav_urls['recentchangeslinked'] = [
1247                                         'href' => SpecialPage::getTitleFor( 'Recentchangeslinked', $this->thispage )->getLocalURL()
1248                                 ];
1249                         }
1250                 }
1251
1252                 $user = $this->getRelevantUser();
1253                 if ( $user ) {
1254                         $rootUser = $user->getName();
1255
1256                         $nav_urls['contributions'] = [
1257                                 'text' => $this->msg( 'contributions', $rootUser )->text(),
1258                                 'href' => self::makeSpecialUrlSubpage( 'Contributions', $rootUser ),
1259                                 'tooltip-params' => [ $rootUser ],
1260                         ];
1261
1262                         $nav_urls['log'] = [
1263                                 'href' => self::makeSpecialUrlSubpage( 'Log', $rootUser )
1264                         ];
1265
1266                         if ( $this->getUser()->isAllowed( 'block' ) ) {
1267                                 $nav_urls['blockip'] = [
1268                                         'text' => $this->msg( 'blockip', $rootUser )->text(),
1269                                         'href' => self::makeSpecialUrlSubpage( 'Block', $rootUser )
1270                                 ];
1271                         }
1272
1273                         if ( $this->showEmailUser( $user ) ) {
1274                                 $nav_urls['emailuser'] = [
1275                                         'href' => self::makeSpecialUrlSubpage( 'Emailuser', $rootUser ),
1276                                         'tooltip-params' => [ $rootUser ],
1277                                 ];
1278                         }
1279
1280                         if ( !$user->isAnon() ) {
1281                                 $sur = new UserrightsPage;
1282                                 $sur->setContext( $this->getContext() );
1283                                 if ( $sur->userCanExecute( $this->getUser() ) ) {
1284                                         $nav_urls['userrights'] = [
1285                                                 'href' => self::makeSpecialUrlSubpage( 'Userrights', $rootUser )
1286                                         ];
1287                                 }
1288                         }
1289                 }
1290
1291                 return $nav_urls;
1292         }
1293
1294         /**
1295          * Generate strings used for xml 'id' names
1296          * @return string
1297          */
1298         protected function getNameSpaceKey() {
1299                 return $this->getTitle()->getNamespaceKey();
1300         }
1301 }