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 use MediaWiki\Auth\AuthManager;
  22 use MediaWiki\MediaWikiServices;
  23
  24 /**
  25  * Base class for template-based skins.
  26  *
  27  * Template-filler skin base class
  28  * Formerly generic PHPTal (http://phptal.sourceforge.net/) skin
  29  * Based on Brion's smarty skin
  30  * @copyright Copyright © Gabriel Wicke -- http://www.aulinx.de/
  31  *
  32  * @todo Needs some serious refactoring into functions that correspond
  33  * to the computations individual esi snippets need. Most importantly no body
  34  * parsing for most of those of course.
  35  *
  36  * @ingroup Skins
  37  */
  38 class SkinTemplate extends Skin {
  39         /**
  40          * @var string Name of our skin, it probably needs to be all lower case.
  41          *   Child classes should override the default.
  42          */
  43         public $skinname = 'monobook';
  44
  45         /**
  46          * @var string For QuickTemplate, the name of the subclass which will
  47          *   actually fill the template.  Child classes should override the default.
  48          */
  49         public $template = QuickTemplate::class;
  50
  51         public $thispage;
  52         public $titletxt;
  53         public $userpage;
  54         public $thisquery;
  55         public $loggedin;
  56         public $username;
  57         public $userpageUrlDetails;
  58
  59         /**
  60          * Create the template engine object; we feed it a bunch of data
  61          * and eventually it spits out some HTML. Should have interface
  62          * roughly equivalent to PHPTAL 0.7.
  63          *
  64          * @param string $classname
  65          * @param bool|string $repository Subdirectory where we keep template files
  66          * @param bool|string $cache_dir
  67          * @return QuickTemplate
  68          * @private
  69          */
  70         function setupTemplate( $classname, $repository = false, $cache_dir = false ) {
  71                 return new $classname( $this->getConfig() );
  72         }
  73
  74         /**
  75          * Generates array of language links for the current page
  76          *
  77          * @return array
  78          */
  79         public function getLanguages() {
  80                 global $wgHideInterlanguageLinks;
  81                 if ( $wgHideInterlanguageLinks ) {
  82                         return [];
  83                 }
  84
  85                 $userLang = $this->getLanguage();
  86                 $languageLinks = [];
  87
  88                 foreach ( $this->getOutput()->getLanguageLinks() as $languageLinkText ) {
  89                         $class = 'interlanguage-link interwiki-' . explode( ':', $languageLinkText, 2 )[0];
  90
  91                         $languageLinkTitle = Title::newFromText( $languageLinkText );
  92                         if ( $languageLinkTitle ) {
  93                                 $ilInterwikiCode = $languageLinkTitle->getInterwiki();
  94                                 $ilLangName = Language::fetchLanguageName( $ilInterwikiCode );
  95
  96                                 if ( strval( $ilLangName ) === '' ) {
  97                                         $ilDisplayTextMsg = wfMessage( "interlanguage-link-$ilInterwikiCode" );
  98                                         if ( !$ilDisplayTextMsg->isDisabled() ) {
  99                                                 // Use custom MW message for the display text
 100                                                 $ilLangName = $ilDisplayTextMsg->text();
 101                                         } else {
 102                                                 // Last resort: fallback to the language link target
 103                                                 $ilLangName = $languageLinkText;
 104                                         }
 105                                 } else {
 106                                         // Use the language autonym as display text
 107                                         $ilLangName = $this->formatLanguageName( $ilLangName );
 108                                 }
 109
 110                                 // CLDR extension or similar is required to localize the language name;
 111                                 // otherwise we'll end up with the autonym again.
 112                                 $ilLangLocalName = Language::fetchLanguageName(
 113                                         $ilInterwikiCode,
 114                                         $userLang->getCode()
 115                                 );
 116
 117                                 $languageLinkTitleText = $languageLinkTitle->getText();
 118                                 if ( $ilLangLocalName === '' ) {
 119                                         $ilFriendlySiteName = wfMessage( "interlanguage-link-sitename-$ilInterwikiCode" );
 120                                         if ( !$ilFriendlySiteName->isDisabled() ) {
 121                                                 if ( $languageLinkTitleText === '' ) {
 122                                                         $ilTitle = wfMessage(
 123                                                                 'interlanguage-link-title-nonlangonly',
 124                                                                 $ilFriendlySiteName->text()
 125                                                         )->text();
 126                                                 } else {
 127                                                         $ilTitle = wfMessage(
 128                                                                 'interlanguage-link-title-nonlang',
 129                                                                 $languageLinkTitleText,
 130                                                                 $ilFriendlySiteName->text()
 131                                                         )->text();
 132                                                 }
 133                                         } else {
 134                                                 // we have nothing friendly to put in the title, so fall back to
 135                                                 // displaying the interlanguage link itself in the title text
 136                                                 // (similar to what is done in page content)
 137                                                 $ilTitle = $languageLinkTitle->getInterwiki() .
 138                                                         ":$languageLinkTitleText";
 139                                         }
 140                                 } elseif ( $languageLinkTitleText === '' ) {
 141                                         $ilTitle = wfMessage(
 142                                                 'interlanguage-link-title-langonly',
 143                                                 $ilLangLocalName
 144                                         )->text();
 145                                 } else {
 146                                         $ilTitle = wfMessage(
 147                                                 'interlanguage-link-title',
 148                                                 $languageLinkTitleText,
 149                                                 $ilLangLocalName
 150                                         )->text();
 151                                 }
 152
 153                                 $ilInterwikiCodeBCP47 = LanguageCode::bcp47( $ilInterwikiCode );
 154                                 $languageLink = [
 155                                         'href' => $languageLinkTitle->getFullURL(),
 156                                         'text' => $ilLangName,
 157                                         'title' => $ilTitle,
 158                                         'class' => $class,
 159                                         'link-class' => 'interlanguage-link-target',
 160                                         'lang' => $ilInterwikiCodeBCP47,
 161                                         'hreflang' => $ilInterwikiCodeBCP47,
 162                                 ];
 163                                 Hooks::run(
 164                                         'SkinTemplateGetLanguageLink',
 165                                         [ &$languageLink, $languageLinkTitle, $this->getTitle(), $this->getOutput() ]
 166                                 );
 167                                 $languageLinks[] = $languageLink;
 168                         }
 169                 }
 170
 171                 return $languageLinks;
 172         }
 173
 174         protected function setupTemplateForOutput() {
 175                 $request = $this->getRequest();
 176                 $user = $this->getUser();
 177                 $title = $this->getTitle();
 178
 179                 $tpl = $this->setupTemplate( $this->template, 'skins' );
 180
 181                 $this->thispage = $title->getPrefixedDBkey();
 182                 $this->titletxt = $title->getPrefixedText();
 183                 $this->userpage = $user->getUserPage()->getPrefixedText();
 184                 $query = [];
 185                 if ( !$request->wasPosted() ) {
 186                         $query = $request->getValues();
 187                         unset( $query['title'] );
 188                         unset( $query['returnto'] );
 189                         unset( $query['returntoquery'] );
 190                 }
 191                 $this->thisquery = wfArrayToCgi( $query );
 192                 $this->loggedin = $user->isLoggedIn();
 193                 $this->username = $user->getName();
 194
 195                 if ( $this->loggedin ) {
 196                         $this->userpageUrlDetails = self::makeUrlDetails( $this->userpage );
 197                 } else {
 198                         # This won't be used in the standard skins, but we define it to preserve the interface
 199                         # To save time, we check for existence
 200                         $this->userpageUrlDetails = self::makeKnownUrlDetails( $this->userpage );
 201                 }
 202
 203                 return $tpl;
 204         }
 205
 206         /**
 207          * initialize various variables and generate the template
 208          *
 209          * @param OutputPage|null $out
 210          */
 211         function outputPage( OutputPage $out = null ) {
 212                 Profiler::instance()->setTemplated( true );
 213
 214                 $oldContext = null;
 215                 if ( $out !== null ) {
 216                         // Deprecated since 1.20, note added in 1.25
 217                         wfDeprecated( __METHOD__, '1.25' );
 218                         $oldContext = $this->getContext();
 219                         $this->setContext( $out->getContext() );
 220                 }
 221
 222                 $out = $this->getOutput();
 223
 224                 $this->initPage( $out );
 225                 $tpl = $this->prepareQuickTemplate();
 226                 // execute template
 227                 $res = $tpl->execute();
 228
 229                 // result may be an error
 230                 $this->printOrError( $res );
 231
 232                 if ( $oldContext ) {
 233                         $this->setContext( $oldContext );
 234                 }
 235         }
 236
 237         /**
 238          * Wrap the body text with language information and identifiable element
 239          *
 240          * @param Title $title
 241          * @param string $html body text
 242          * @return string html
 243          */
 244         protected function wrapHTML( $title, $html ) {
 245                 # An ID that includes the actual body text; without categories, contentSub, ...
 246                 $realBodyAttribs = [ 'id' => 'mw-content-text' ];
 247
 248                 # Add a mw-content-ltr/rtl class to be able to style based on text
 249                 # direction when the content is different from the UI language (only
 250                 # when viewing)
 251                 # Most information on special pages and file pages is in user language,
 252                 # rather than content language, so those will not get this
 253                 if ( Action::getActionName( $this ) === 'view' &&
 254                         ( !$title->inNamespaces( NS_SPECIAL, NS_FILE ) || $title->isRedirect() ) ) {
 255                         $pageLang = $title->getPageViewLanguage();
 256                         $realBodyAttribs['lang'] = $pageLang->getHtmlCode();
 257                         $realBodyAttribs['dir'] = $pageLang->getDir();
 258                         $realBodyAttribs['class'] = 'mw-content-' . $pageLang->getDir();
 259                 }
 260
 261                 return Html::rawElement( 'div', $realBodyAttribs, $html );
 262         }
 263
 264         /**
 265          * initialize various variables and generate the template
 266          *
 267          * @since 1.23
 268          * @return QuickTemplate The template to be executed by outputPage
 269          */
 270         protected function prepareQuickTemplate() {
 271                 global $wgScript, $wgStylePath, $wgMimeType, $wgJsMimeType,
 272                         $wgSitename, $wgLogo, $wgMaxCredits,
 273                         $wgShowCreditsIfMax, $wgArticlePath,
 274                         $wgScriptPath, $wgServer;
 275
 276                 $title = $this->getTitle();
 277                 $request = $this->getRequest();
 278                 $out = $this->getOutput();
 279                 $tpl = $this->setupTemplateForOutput();
 280
 281                 $tpl->set( 'title', $out->getPageTitle() );
 282                 $tpl->set( 'pagetitle', $out->getHTMLTitle() );
 283                 $tpl->set( 'displaytitle', $out->mPageLinkTitle );
 284
 285                 $tpl->set( 'thispage', $this->thispage );
 286                 $tpl->set( 'titleprefixeddbkey', $this->thispage );
 287                 $tpl->set( 'titletext', $title->getText() );
 288                 $tpl->set( 'articleid', $title->getArticleID() );
 289
 290                 $tpl->set( 'isarticle', $out->isArticle() );
 291
 292                 $subpagestr = $this->subPageSubtitle();
 293                 if ( $subpagestr !== '' ) {
 294                         $subpagestr = '<span class="subpages">' . $subpagestr . '</span>';
 295                 }
 296                 $tpl->set( 'subtitle', $subpagestr . $out->getSubtitle() );
 297
 298                 $undelete = $this->getUndeleteLink();
 299                 if ( $undelete === '' ) {
 300                         $tpl->set( 'undelete', '' );
 301                 } else {
 302                         $tpl->set( 'undelete', '<span class="subpages">' . $undelete . '</span>' );
 303                 }
 304
 305                 $tpl->set( 'catlinks', $this->getCategories() );
 306                 if ( $out->isSyndicated() ) {
 307                         $feeds = [];
 308                         foreach ( $out->getSyndicationLinks() as $format => $link ) {
 309                                 $feeds[$format] = [
 310                                         // Messages: feed-atom, feed-rss
 311                                         'text' => $this->msg( "feed-$format" )->text(),
 312                                         'href' => $link
 313                                 ];
 314                         }
 315                         $tpl->set( 'feeds', $feeds );
 316                 } else {
 317                         $tpl->set( 'feeds', false );
 318                 }
 319
 320                 $tpl->set( 'mimetype', $wgMimeType );
 321                 $tpl->set( 'jsmimetype', $wgJsMimeType );
 322                 $tpl->set( 'charset', 'UTF-8' );
 323                 $tpl->set( 'wgScript', $wgScript );
 324                 $tpl->set( 'skinname', $this->skinname );
 325                 $tpl->set( 'skinclass', static::class );
 326                 $tpl->set( 'skin', $this );
 327                 $tpl->set( 'stylename', $this->stylename );
 328                 $tpl->set( 'printable', $out->isPrintable() );
 329                 $tpl->set( 'handheld', $request->getBool( 'handheld' ) );
 330                 $tpl->set( 'loggedin', $this->loggedin );
 331                 $tpl->set( 'notspecialpage', !$title->isSpecialPage() );
 332                 $tpl->set( 'searchaction', $this->escapeSearchLink() );
 333                 $tpl->set( 'searchtitle', SpecialPage::getTitleFor( 'Search' )->getPrefixedDBkey() );
 334                 $tpl->set( 'search', trim( $request->getVal( 'search' ) ) );
 335                 $tpl->set( 'stylepath', $wgStylePath );
 336                 $tpl->set( 'articlepath', $wgArticlePath );
 337                 $tpl->set( 'scriptpath', $wgScriptPath );
 338                 $tpl->set( 'serverurl', $wgServer );
 339                 $tpl->set( 'logopath', $wgLogo );
 340                 $tpl->set( 'sitename', $wgSitename );
 341
 342                 $userLang = $this->getLanguage();
 343                 $userLangCode = $userLang->getHtmlCode();
 344                 $userLangDir = $userLang->getDir();
 345
 346                 $tpl->set( 'lang', $userLangCode );
 347                 $tpl->set( 'dir', $userLangDir );
 348                 $tpl->set( 'rtl', $userLang->isRTL() );
 349
 350                 $tpl->set( 'capitalizeallnouns', $userLang->capitalizeAllNouns() ? ' capitalize-all-nouns' : '' );
 351                 $tpl->set( 'showjumplinks', true ); // showjumplinks preference has been removed
 352                 $tpl->set( 'username', $this->loggedin ? $this->username : null );
 353                 $tpl->set( 'userpage', $this->userpage );
 354                 $tpl->set( 'userpageurl', $this->userpageUrlDetails['href'] );
 355                 $tpl->set( 'userlang', $userLangCode );
 356
 357                 // Users can have their language set differently than the
 358                 // content of the wiki. For these users, tell the web browser
 359                 // that interface elements are in a different language.
 360                 $tpl->set( 'userlangattributes', '' );
 361                 $tpl->set( 'specialpageattributes', '' ); # obsolete
 362                 // Used by VectorBeta to insert HTML before content but after the
 363                 // heading for the page title. Defaults to empty string.
 364                 $tpl->set( 'prebodyhtml', '' );
 365
 366                 $contLang = MediaWikiServices::getInstance()->getContentLanguage();
 367                 if (
 368                         $userLangCode !== $contLang->getHtmlCode() ||
 369                         $userLangDir !== $contLang->getDir()
 370                 ) {
 371                         $escUserlang = htmlspecialchars( $userLangCode );
 372                         $escUserdir = htmlspecialchars( $userLangDir );
 373                         // Attributes must be in double quotes because htmlspecialchars() doesn't
 374                         // escape single quotes
 375                         $attrs = " lang=\"$escUserlang\" dir=\"$escUserdir\"";
 376                         $tpl->set( 'userlangattributes', $attrs );
 377                 }
 378
 379                 $tpl->set( 'newtalk', $this->getNewtalks() );
 380                 $tpl->set( 'logo', $this->logoText() );
 381
 382                 $tpl->set( 'copyright', false );
 383                 // No longer used
 384                 $tpl->set( 'viewcount', false );
 385                 $tpl->set( 'lastmod', false );
 386                 $tpl->set( 'credits', false );
 387                 $tpl->set( 'numberofwatchingusers', false );
 388                 if ( $out->isArticle() && $title->exists() ) {
 389                         if ( $this->isRevisionCurrent() ) {
 390                                 if ( $wgMaxCredits != 0 ) {
 391                                         $tpl->set( 'credits', Action::factory( 'credits', $this->getWikiPage(),
 392                                                 $this->getContext() )->getCredits( $wgMaxCredits, $wgShowCreditsIfMax ) );
 393                                 } else {
 394                                         $tpl->set( 'lastmod', $this->lastModified() );
 395                                 }
 396                         }
 397                         $tpl->set( 'copyright', $this->getCopyright() );
 398                 }
 399
 400                 $tpl->set( 'copyrightico', $this->getCopyrightIcon() );
 401                 $tpl->set( 'poweredbyico', $this->getPoweredBy() );
 402                 $tpl->set( 'disclaimer', $this->disclaimerLink() );
 403                 $tpl->set( 'privacy', $this->privacyLink() );
 404                 $tpl->set( 'about', $this->aboutLink() );
 405
 406                 $tpl->set( 'footerlinks', [
 407                         'info' => [
 408                                 'lastmod',
 409                                 'numberofwatchingusers',
 410                                 'credits',
 411                                 'copyright',
 412                         ],
 413                         'places' => [
 414                                 'privacy',
 415                                 'about',
 416                                 'disclaimer',
 417                         ],
 418                 ] );
 419
 420                 global $wgFooterIcons;
 421                 $tpl->set( 'footericons', $wgFooterIcons );
 422                 foreach ( $tpl->data['footericons'] as $footerIconsKey => &$footerIconsBlock ) {
 423                         if ( count( $footerIconsBlock ) > 0 ) {
 424                                 foreach ( $footerIconsBlock as &$footerIcon ) {
 425                                         if ( isset( $footerIcon['src'] ) ) {
 426                                                 if ( !isset( $footerIcon['width'] ) ) {
 427                                                         $footerIcon['width'] = 88;
 428                                                 }
 429                                                 if ( !isset( $footerIcon['height'] ) ) {
 430                                                         $footerIcon['height'] = 31;
 431                                                 }
 432                                         }
 433                                 }
 434                         } else {
 435                                 unset( $tpl->data['footericons'][$footerIconsKey] );
 436                         }
 437                 }
 438
 439                 $tpl->set( 'indicators', $out->getIndicators() );
 440
 441                 $tpl->set( 'sitenotice', $this->getSiteNotice() );
 442                 $tpl->set( 'printfooter', $this->printSource() );
 443                 // Wrap the bodyText with #mw-content-text element
 444                 $out->mBodytext = $this->wrapHTML( $title, $out->mBodytext );
 445                 $tpl->set( 'bodytext', $out->mBodytext );
 446
 447                 $language_urls = $this->getLanguages();
 448                 if ( count( $language_urls ) ) {
 449                         $tpl->set( 'language_urls', $language_urls );
 450                 } else {
 451                         $tpl->set( 'language_urls', false );
 452                 }
 453
 454                 # Personal toolbar
 455                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 456                 $content_navigation = $this->buildContentNavigationUrls();
 457                 $content_actions = $this->buildContentActionUrls( $content_navigation );
 458                 $tpl->set( 'content_navigation', $content_navigation );
 459                 $tpl->set( 'content_actions', $content_actions );
 460
 461                 $tpl->set( 'sidebar', $this->buildSidebar() );
 462                 $tpl->set( 'nav_urls', $this->buildNavUrls() );
 463
 464                 // Do this last in case hooks above add bottom scripts
 465                 $tpl->set( 'bottomscripts', $this->bottomScripts() );
 466
 467                 // Set the head scripts near the end, in case the above actions resulted in added scripts
 468                 $tpl->set( 'headelement', $out->headElement( $this ) );
 469
 470                 $tpl->set( 'debug', '' );
 471                 $tpl->set( 'debughtml', $this->generateDebugHTML() );
 472                 $tpl->set( 'reporttime', wfReportTime( $out->getCSPNonce() ) );
 473
 474                 // Avoid PHP 7.1 warning of passing $this by reference
 475                 $skinTemplate = $this;
 476                 // original version by hansm
 477                 if ( !Hooks::run( 'SkinTemplateOutputPageBeforeExec', [ &$skinTemplate, &$tpl ] ) ) {
 478                         wfDebug( __METHOD__ . ": Hook SkinTemplateOutputPageBeforeExec broke outputPage execution!\n" );
 479                 }
 480
 481                 // Set the bodytext to another key so that skins can just output it on its own
 482                 // and output printfooter and debughtml separately
 483                 $tpl->set( 'bodycontent', $tpl->data['bodytext'] );
 484
 485                 // Append printfooter and debughtml onto bodytext so that skins that
 486                 // were already using bodytext before they were split out don't suddenly
 487                 // start not outputting information.
 488                 $tpl->data['bodytext'] .= Html::rawElement(
 489                         'div',
 490                         [ 'class' => 'printfooter' ],
 491                         "\n{$tpl->data['printfooter']}"
 492                 ) . "\n";
 493                 $tpl->data['bodytext'] .= $tpl->data['debughtml'];
 494
 495                 // allow extensions adding stuff after the page content.
 496                 // See Skin::afterContentHook() for further documentation.
 497                 $tpl->set( 'dataAfterContent', $this->afterContentHook() );
 498
 499                 return $tpl;
 500         }
 501
 502         /**
 503          * Get the HTML for the p-personal list
 504          * @return string
 505          */
 506         public function getPersonalToolsList() {
 507                 return $this->makePersonalToolsList();
 508         }
 509
 510         /**
 511          * Get the HTML for the personal tools list
 512          *
 513          * @since 1.31
 514          *
 515          * @param array|null $personalTools
 516          * @param array $options
 517          * @return string
 518          */
 519         public function makePersonalToolsList( $personalTools = null, $options = [] ) {
 520                 $tpl = $this->setupTemplateForOutput();
 521                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 522                 $html = '';
 523
 524                 if ( $personalTools === null ) {
 525                         $personalTools = $tpl->getPersonalTools();
 526                 }
 527
 528                 foreach ( $personalTools as $key => $item ) {
 529                         $html .= $tpl->makeListItem( $key, $item, $options );
 530                 }
 531
 532                 return $html;
 533         }
 534
 535         /**
 536          * Get personal tools for the user
 537          *
 538          * @since 1.31
 539          *
 540          * @return array Array of personal tools
 541          */
 542         public function getStructuredPersonalTools() {
 543                 $tpl = $this->setupTemplateForOutput();
 544                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 545
 546                 return $tpl->getPersonalTools();
 547         }
 548
 549         /**
 550          * Format language name for use in sidebar interlanguage links list.
 551          * By default it is capitalized.
 552          *
 553          * @param string $name Language name, e.g. "English" or "español"
 554          * @return string
 555          * @private
 556          */
 557         function formatLanguageName( $name ) {
 558                 return $this->getLanguage()->ucfirst( $name );
 559         }
 560
 561         /**
 562          * Output the string, or print error message if it's
 563          * an error object of the appropriate type.
 564          * For the base class, assume strings all around.
 565          *
 566          * @param string $str
 567          * @private
 568          */
 569         function printOrError( $str ) {
 570                 echo $str;
 571         }
 572
 573         /**
 574          * Output a boolean indicating if buildPersonalUrls should output separate
 575          * login and create account links or output a combined link
 576          * By default we simply return a global config setting that affects most skins
 577          * This is setup as a method so that like with $wgLogo and getLogo() a skin
 578          * can override this setting and always output one or the other if it has
 579          * a reason it can't output one of the two modes.
 580          * @return bool
 581          */
 582         function useCombinedLoginLink() {
 583                 global $wgUseCombinedLoginLink;
 584                 return $wgUseCombinedLoginLink;
 585         }
 586
 587         /**
 588          * build array of urls for personal toolbar
 589          * @return array
 590          */
 591         protected function buildPersonalUrls() {
 592                 $title = $this->getTitle();
 593                 $request = $this->getRequest();
 594                 $pageurl = $title->getLocalURL();
 595                 $authManager = AuthManager::singleton();
 596
 597                 /* set up the default links for the personal toolbar */
 598                 $personal_urls = [];
 599
 600                 # Due to T34276, if a user does not have read permissions,
 601                 # $this->getTitle() will just give Special:Badtitle, which is
 602                 # not especially useful as a returnto parameter. Use the title
 603                 # from the request instead, if there was one.
 604                 if ( $this->getUser()->isAllowed( 'read' ) ) {
 605                         $page = $this->getTitle();
 606                 } else {
 607                         $page = Title::newFromText( $request->getVal( 'title', '' ) );
 608                 }
 609                 $page = $request->getVal( 'returnto', $page );
 610                 $a = [];
 611                 if ( strval( $page ) !== '' ) {
 612                         $a['returnto'] = $page;
 613                         $query = $request->getVal( 'returntoquery', $this->thisquery );
 614                         if ( $query != '' ) {
 615                                 $a['returntoquery'] = $query;
 616                         }
 617                 }
 618
 619                 $returnto = wfArrayToCgi( $a );
 620                 if ( $this->loggedin ) {
 621                         $personal_urls['userpage'] = [
 622                                 'text' => $this->username,
 623                                 'href' => &$this->userpageUrlDetails['href'],
 624                                 'class' => $this->userpageUrlDetails['exists'] ? false : 'new',
 625                                 'exists' => $this->userpageUrlDetails['exists'],
 626                                 'active' => ( $this->userpageUrlDetails['href'] == $pageurl ),
 627                                 'dir' => 'auto'
 628                         ];
 629                         $usertalkUrlDetails = $this->makeTalkUrlDetails( $this->userpage );
 630                         $personal_urls['mytalk'] = [
 631                                 'text' => $this->msg( 'mytalk' )->text(),
 632                                 'href' => &$usertalkUrlDetails['href'],
 633                                 'class' => $usertalkUrlDetails['exists'] ? false : 'new',
 634                                 'exists' => $usertalkUrlDetails['exists'],
 635                                 'active' => ( $usertalkUrlDetails['href'] == $pageurl )
 636                         ];
 637                         $href = self::makeSpecialUrl( 'Preferences' );
 638                         $personal_urls['preferences'] = [
 639                                 'text' => $this->msg( 'mypreferences' )->text(),
 640                                 'href' => $href,
 641                                 'active' => ( $href == $pageurl )
 642                         ];
 643
 644                         if ( $this->getUser()->isAllowed( 'viewmywatchlist' ) ) {
 645                                 $href = self::makeSpecialUrl( 'Watchlist' );
 646                                 $personal_urls['watchlist'] = [
 647                                         'text' => $this->msg( 'mywatchlist' )->text(),
 648                                         'href' => $href,
 649                                         'active' => ( $href == $pageurl )
 650                                 ];
 651                         }
 652
 653                         # We need to do an explicit check for Special:Contributions, as we
 654                         # have to match both the title, and the target, which could come
 655                         # from request values (Special:Contributions?target=Jimbo_Wales)
 656                         # or be specified in "sub page" form
 657                         # (Special:Contributions/Jimbo_Wales). The plot
 658                         # thickens, because the Title object is altered for special pages,
 659                         # so it doesn't contain the original alias-with-subpage.
 660                         $origTitle = Title::newFromText( $request->getText( 'title' ) );
 661                         if ( $origTitle instanceof Title && $origTitle->isSpecialPage() ) {
 662                                 list( $spName, $spPar ) =
 663                                         MediaWikiServices::getInstance()->getSpecialPageFactory()->
 664                                                 resolveAlias( $origTitle->getText() );
 665                                 $active = $spName == 'Contributions'
 666                                         && ( ( $spPar && $spPar == $this->username )
 667                                                 || $request->getText( 'target' ) == $this->username );
 668                         } else {
 669                                 $active = false;
 670                         }
 671
 672                         $href = self::makeSpecialUrlSubpage( 'Contributions', $this->username );
 673                         $personal_urls['mycontris'] = [
 674                                 'text' => $this->msg( 'mycontris' )->text(),
 675                                 'href' => $href,
 676                                 'active' => $active
 677                         ];
 678
 679                         // if we can't set the user, we can't unset it either
 680                         if ( $request->getSession()->canSetUser() ) {
 681                                 $personal_urls['logout'] = [
 682                                         'text' => $this->msg( 'pt-userlogout' )->text(),
 683                                         'href' => self::makeSpecialUrl( 'Userlogout',
 684                                                 // userlogout link must always contain an & character, otherwise we might not be able
 685                                                 // to detect a buggy precaching proxy (T19790)
 686                                                 $title->isSpecial( 'Preferences' ) ? 'noreturnto' : $returnto ),
 687                                         'active' => false
 688                                 ];
 689                         }
 690                 } else {
 691                         $useCombinedLoginLink = $this->useCombinedLoginLink();
 692                         if ( !$authManager->canCreateAccounts() || !$authManager->canAuthenticateNow() ) {
 693                                 // don't show combined login/signup link if one of those is actually not available
 694                                 $useCombinedLoginLink = false;
 695                         }
 696
 697                         $loginlink = $this->getUser()->isAllowed( 'createaccount' ) && $useCombinedLoginLink
 698                                 ? 'nav-login-createaccount'
 699                                 : 'pt-login';
 700
 701                         $login_url = [
 702                                 'text' => $this->msg( $loginlink )->text(),
 703                                 'href' => self::makeSpecialUrl( 'Userlogin', $returnto ),
 704                                 'active' => $title->isSpecial( 'Userlogin' )
 705                                         || $title->isSpecial( 'CreateAccount' ) && $useCombinedLoginLink,
 706                         ];
 707                         $createaccount_url = [
 708                                 'text' => $this->msg( 'pt-createaccount' )->text(),
 709                                 'href' => self::makeSpecialUrl( 'CreateAccount', $returnto ),
 710                                 'active' => $title->isSpecial( 'CreateAccount' ),
 711                         ];
 712
 713                         // No need to show Talk and Contributions to anons if they can't contribute!
 714                         if ( User::groupHasPermission( '*', 'edit' ) ) {
 715                                 // Because of caching, we can't link directly to the IP talk and
 716                                 // contributions pages. Instead we use the special page shortcuts
 717                                 // (which work correctly regardless of caching). This means we can't
 718                                 // determine whether these links are active or not, but since major
 719                                 // skins (MonoBook, Vector) don't use this information, it's not a
 720                                 // huge loss.
 721                                 $personal_urls['anontalk'] = [
 722                                         'text' => $this->msg( 'anontalk' )->text(),
 723                                         'href' => self::makeSpecialUrlSubpage( 'Mytalk', false ),
 724                                         'active' => false
 725                                 ];
 726                                 $personal_urls['anoncontribs'] = [
 727                                         'text' => $this->msg( 'anoncontribs' )->text(),
 728                                         'href' => self::makeSpecialUrlSubpage( 'Mycontributions', false ),
 729                                         'active' => false
 730                                 ];
 731                         }
 732
 733                         if (
 734                                 $authManager->canCreateAccounts()
 735                                 && $this->getUser()->isAllowed( 'createaccount' )
 736                                 && !$useCombinedLoginLink
 737                         ) {
 738                                 $personal_urls['createaccount'] = $createaccount_url;
 739                         }
 740
 741                         if ( $authManager->canAuthenticateNow() ) {
 742                                 $key = User::groupHasPermission( '*', 'read' )
 743                                         ? 'login'
 744                                         : 'login-private';
 745                                 $personal_urls[$key] = $login_url;
 746                         }
 747                 }
 748
 749                 Hooks::runWithoutAbort( 'PersonalUrls', [ &$personal_urls, &$title, $this ] );
 750                 return $personal_urls;
 751         }
 752
 753         /**
 754          * Builds an array with tab definition
 755          *
 756          * @param Title $title Page Where the tab links to
 757          * @param string|array $message Message key or an array of message keys (will fall back)
 758          * @param bool $selected Display the tab as selected
 759          * @param string $query Query string attached to tab URL
 760          * @param bool $checkEdit Check if $title exists and mark with .new if one doesn't
 761          *
 762          * @return array
 763          */
 764         function tabAction( $title, $message, $selected, $query = '', $checkEdit = false ) {
 765                 $classes = [];
 766                 if ( $selected ) {
 767                         $classes[] = 'selected';
 768                 }
 769                 $exists = true;
 770                 if ( $checkEdit && !$title->isKnown() ) {
 771                         $classes[] = 'new';
 772                         $exists = false;
 773                         if ( $query !== '' ) {
 774                                 $query = 'action=edit&redlink=1&' . $query;
 775                         } else {
 776                                 $query = 'action=edit&redlink=1';
 777                         }
 778                 }
 779
 780                 $linkClass = MediaWikiServices::getInstance()->getLinkRenderer()->getLinkClasses( $title );
 781
 782                 // wfMessageFallback will nicely accept $message as an array of fallbacks
 783                 // or just a single key
 784                 $msg = wfMessageFallback( $message )->setContext( $this->getContext() );
 785                 if ( is_array( $message ) ) {
 786                         // for hook compatibility just keep the last message name
 787                         $message = end( $message );
 788                 }
 789                 if ( $msg->exists() ) {
 790                         $text = $msg->text();
 791                 } else {
 792                         $text = MediaWikiServices::getInstance()->getContentLanguage()->getConverter()->
 793                                 convertNamespace( MWNamespace::getSubject( $title->getNamespace() ) );
 794                 }
 795
 796                 // Avoid PHP 7.1 warning of passing $this by reference
 797                 $skinTemplate = $this;
 798                 $result = [];
 799                 if ( !Hooks::run( 'SkinTemplateTabAction', [ &$skinTemplate,
 800                                 $title, $message, $selected, $checkEdit,
 801                                 &$classes, &$query, &$text, &$result ] ) ) {
 802                         return $result;
 803                 }
 804
 805                 $result = [
 806                         'class' => implode( ' ', $classes ),
 807                         'text' => $text,
 808                         'href' => $title->getLocalURL( $query ),
 809                         'exists' => $exists,
 810                         'primary' => true ];
 811                 if ( $linkClass !== '' ) {
 812                         $result['link-class'] = $linkClass;
 813                 }
 814
 815                 return $result;
 816         }
 817
 818         function makeTalkUrlDetails( $name, $urlaction = '' ) {
 819                 $title = Title::newFromText( $name );
 820                 if ( !is_object( $title ) ) {
 821                         throw new MWException( __METHOD__ . " given invalid pagename $name" );
 822                 }
 823                 $title = $title->getTalkPage();
 824                 self::checkTitle( $title, $name );
 825                 return [
 826                         'href' => $title->getLocalURL( $urlaction ),
 827                         'exists' => $title->isKnown(),
 828                 ];
 829         }
 830
 831         /**
 832          * @todo is this even used?
 833          * @param string $name
 834          * @param string $urlaction
 835          * @return array
 836          */
 837         function makeArticleUrlDetails( $name, $urlaction = '' ) {
 838                 $title = Title::newFromText( $name );
 839                 $title = $title->getSubjectPage();
 840                 self::checkTitle( $title, $name );
 841                 return [
 842                         'href' => $title->getLocalURL( $urlaction ),
 843                         'exists' => $title->exists(),
 844                 ];
 845         }
 846
 847         /**
 848          * a structured array of links usually used for the tabs in a skin
 849          *
 850          * There are 4 standard sections
 851          * namespaces: Used for namespace tabs like special, page, and talk namespaces
 852          * views: Used for primary page views like read, edit, history
 853          * actions: Used for most extra page actions like deletion, protection, etc...
 854          * variants: Used to list the language variants for the page
 855          *
 856          * Each section's value is a key/value array of links for that section.
 857          * The links themselves have these common keys:
 858          * - class: The css classes to apply to the tab
 859          * - text: The text to display on the tab
 860          * - href: The href for the tab to point to
 861          * - rel: An optional rel= for the tab's link
 862          * - redundant: If true the tab will be dropped in skins using content_actions
 863          *   this is useful for tabs like "Read" which only have meaning in skins that
 864          *   take special meaning from the grouped structure of content_navigation
 865          *
 866          * Views also have an extra key which can be used:
 867          * - primary: If this is not true skins like vector may try to hide the tab
 868          *            when the user has limited space in their browser window
 869          *
 870          * content_navigation using code also expects these ids to be present on the
 871          * links, however these are usually automatically generated by SkinTemplate
 872          * itself and are not necessary when using a hook. The only things these may
 873          * matter to are people modifying content_navigation after it's initial creation:
 874          * - id: A "preferred" id, most skins are best off outputting this preferred
 875          *   id for best compatibility.
 876          * - tooltiponly: This is set to true for some tabs in cases where the system
 877          *   believes that the accesskey should not be added to the tab.
 878          *
 879          * @return array
 880          */
 881         protected function buildContentNavigationUrls() {
 882                 global $wgDisableLangConversion;
 883
 884                 // Display tabs for the relevant title rather than always the title itself
 885                 $title = $this->getRelevantTitle();
 886                 $onPage = $title->equals( $this->getTitle() );
 887
 888                 $out = $this->getOutput();
 889                 $request = $this->getRequest();
 890                 $user = $this->getUser();
 891
 892                 $content_navigation = [
 893                         'namespaces' => [],
 894                         'views' => [],
 895                         'actions' => [],
 896                         'variants' => []
 897                 ];
 898
 899                 // parameters
 900                 $action = $request->getVal( 'action', 'view' );
 901
 902                 $userCanRead = $title->quickUserCan( 'read', $user );
 903
 904                 // Avoid PHP 7.1 warning of passing $this by reference
 905                 $skinTemplate = $this;
 906                 $preventActiveTabs = false;
 907                 Hooks::run( 'SkinTemplatePreventOtherActiveTabs', [ &$skinTemplate, &$preventActiveTabs ] );
 908
 909                 // Checks if page is some kind of content
 910                 if ( $title->canExist() ) {
 911                         // Gets page objects for the related namespaces
 912                         $subjectPage = $title->getSubjectPage();
 913                         $talkPage = $title->getTalkPage();
 914
 915                         // Determines if this is a talk page
 916                         $isTalk = $title->isTalkPage();
 917
 918                         // Generates XML IDs from namespace names
 919                         $subjectId = $title->getNamespaceKey( '' );
 920
 921                         if ( $subjectId == 'main' ) {
 922                                 $talkId = 'talk';
 923                         } else {
 924                                 $talkId = "{$subjectId}_talk";
 925                         }
 926
 927                         $skname = $this->skinname;
 928
 929                         // Adds namespace links
 930                         $subjectMsg = [ "nstab-$subjectId" ];
 931                         if ( $subjectPage->isMainPage() ) {
 932                                 array_unshift( $subjectMsg, 'mainpage-nstab' );
 933                         }
 934                         $content_navigation['namespaces'][$subjectId] = $this->tabAction(
 935                                 $subjectPage, $subjectMsg, !$isTalk && !$preventActiveTabs, '', $userCanRead
 936                         );
 937                         $content_navigation['namespaces'][$subjectId]['context'] = 'subject';
 938                         $content_navigation['namespaces'][$talkId] = $this->tabAction(
 939                                 $talkPage, [ "nstab-$talkId", 'talk' ], $isTalk && !$preventActiveTabs, '', $userCanRead
 940                         );
 941                         $content_navigation['namespaces'][$talkId]['context'] = 'talk';
 942
 943                         if ( $userCanRead ) {
 944                                 // Adds "view" view link
 945                                 if ( $title->isKnown() ) {
 946                                         $content_navigation['views']['view'] = $this->tabAction(
 947                                                 $isTalk ? $talkPage : $subjectPage,
 948                                                 [ "$skname-view-view", 'view' ],
 949                                                 ( $onPage && ( $action == 'view' || $action == 'purge' ) ), '', true
 950                                         );
 951                                         // signal to hide this from simple content_actions
 952                                         $content_navigation['views']['view']['redundant'] = true;
 953                                 }
 954
 955                                 $page = $this->canUseWikiPage() ? $this->getWikiPage() : false;
 956                                 $isRemoteContent = $page && !$page->isLocal();
 957
 958                                 // If it is a non-local file, show a link to the file in its own repository
 959                                 // @todo abstract this for remote content that isn't a file
 960                                 if ( $isRemoteContent ) {
 961                                         $content_navigation['views']['view-foreign'] = [
 962                                                 'class' => '',
 963                                                 'text' => wfMessageFallback( "$skname-view-foreign", 'view-foreign' )->
 964                                                         setContext( $this->getContext() )->
 965                                                         params( $page->getWikiDisplayName() )->text(),
 966                                                 'href' => $page->getSourceURL(),
 967                                                 'primary' => false,
 968                                         ];
 969                                 }
 970
 971                                 // Checks if user can edit the current page if it exists or create it otherwise
 972                                 if ( $title->quickUserCan( 'edit', $user )
 973                                         && ( $title->exists() || $title->quickUserCan( 'create', $user ) )
 974                                 ) {
 975                                         // Builds CSS class for talk page links
 976                                         $isTalkClass = $isTalk ? ' istalk' : '';
 977                                         // Whether the user is editing the page
 978                                         $isEditing = $onPage && ( $action == 'edit' || $action == 'submit' );
 979                                         // Whether to show the "Add a new section" tab
 980                                         // Checks if this is a current rev of talk page and is not forced to be hidden
 981                                         $showNewSection = !$out->forceHideNewSectionLink()
 982                                                 && ( ( $isTalk && $this->isRevisionCurrent() ) || $out->showNewSectionLink() );
 983                                         $section = $request->getVal( 'section' );
 984
 985                                         if ( $title->exists()
 986                                                 || ( $title->getNamespace() == NS_MEDIAWIKI
 987                                                         && $title->getDefaultMessageText() !== false
 988                                                 )
 989                                         ) {
 990                                                 $msgKey = $isRemoteContent ? 'edit-local' : 'edit';
 991                                         } else {
 992                                                 $msgKey = $isRemoteContent ? 'create-local' : 'create';
 993                                         }
 994                                         $content_navigation['views']['edit'] = [
 995                                                 'class' => ( $isEditing && ( $section !== 'new' || !$showNewSection )
 996                                                         ? 'selected'
 997                                                         : ''
 998                                                 ) . $isTalkClass,
 999                                                 'text' => wfMessageFallback( "$skname-view-$msgKey", $msgKey )
1000                                                         ->setContext( $this->getContext() )->text(),
1001                                                 'href' => $title->getLocalURL( $this->editUrlOptions() ),
1002                                                 'primary' => !$isRemoteContent, // don't collapse this in vector
1003                                         ];
1004
1005                                         // section link
1006                                         if ( $showNewSection ) {
1007                                                 // Adds new section link
1008                                                 // $content_navigation['actions']['addsection']
1009                                                 $content_navigation['views']['addsection'] = [
1010                                                         'class' => ( $isEditing && $section == 'new' ) ? 'selected' : false,
1011                                                         'text' => wfMessageFallback( "$skname-action-addsection", 'addsection' )
1012                                                                 ->setContext( $this->getContext() )->text(),
1013                                                         'href' => $title->getLocalURL( 'action=edit&section=new' )
1014                                                 ];
1015                                         }
1016                                 // Checks if the page has some kind of viewable source content
1017                                 } elseif ( $title->hasSourceText() ) {
1018                                         // Adds view source view link
1019                                         $content_navigation['views']['viewsource'] = [
1020                                                 'class' => ( $onPage && $action == 'edit' ) ? 'selected' : false,
1021                                                 'text' => wfMessageFallback( "$skname-action-viewsource", 'viewsource' )
1022                                                         ->setContext( $this->getContext() )->text(),
1023                                                 'href' => $title->getLocalURL( $this->editUrlOptions() ),
1024                                                 'primary' => true, // don't collapse this in vector
1025                                         ];
1026                                 }
1027
1028                                 // Checks if the page exists
1029                                 if ( $title->exists() ) {
1030                                         // Adds history view link
1031                                         $content_navigation['views']['history'] = [
1032                                                 'class' => ( $onPage && $action == 'history' ) ? 'selected' : false,
1033                                                 'text' => wfMessageFallback( "$skname-view-history", 'history_short' )
1034                                                         ->setContext( $this->getContext() )->text(),
1035                                                 'href' => $title->getLocalURL( 'action=history' ),
1036                                         ];
1037
1038                                         if ( $title->quickUserCan( 'delete', $user ) ) {
1039                                                 $content_navigation['actions']['delete'] = [
1040                                                         'class' => ( $onPage && $action == 'delete' ) ? 'selected' : false,
1041                                                         'text' => wfMessageFallback( "$skname-action-delete", 'delete' )
1042                                                                 ->setContext( $this->getContext() )->text(),
1043                                                         'href' => $title->getLocalURL( 'action=delete' )
1044                                                 ];
1045                                         }
1046
1047                                         if ( $title->quickUserCan( 'move', $user ) ) {
1048                                                 $moveTitle = SpecialPage::getTitleFor( 'Movepage', $title->getPrefixedDBkey() );
1049                                                 $content_navigation['actions']['move'] = [
1050                                                         'class' => $this->getTitle()->isSpecial( 'Movepage' ) ? 'selected' : false,
1051                                                         'text' => wfMessageFallback( "$skname-action-move", 'move' )
1052                                                                 ->setContext( $this->getContext() )->text(),
1053                                                         'href' => $moveTitle->getLocalURL()
1054                                                 ];
1055                                         }
1056                                 } else {
1057                                         // article doesn't exist or is deleted
1058                                         if ( $title->quickUserCan( 'deletedhistory', $user ) ) {
1059                                                 $n = $title->isDeleted();
1060                                                 if ( $n ) {
1061                                                         $undelTitle = SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedDBkey() );
1062                                                         // If the user can't undelete but can view deleted
1063                                                         // history show them a "View .. deleted" tab instead.
1064                                                         $msgKey = $title->quickUserCan( 'undelete', $user ) ? 'undelete' : 'viewdeleted';
1065                                                         $content_navigation['actions']['undelete'] = [
1066                                                                 'class' => $this->getTitle()->isSpecial( 'Undelete' ) ? 'selected' : false,
1067                                                                 'text' => wfMessageFallback( "$skname-action-$msgKey", "{$msgKey}_short" )
1068                                                                         ->setContext( $this->getContext() )->numParams( $n )->text(),
1069                                                                 'href' => $undelTitle->getLocalURL()
1070                                                         ];
1071                                                 }
1072                                         }
1073                                 }
1074
1075                                 if ( $title->quickUserCan( 'protect', $user ) && $title->getRestrictionTypes() &&
1076                                         MWNamespace::getRestrictionLevels( $title->getNamespace(), $user ) !== [ '' ]
1077                                 ) {
1078                                         $mode = $title->isProtected() ? 'unprotect' : 'protect';
1079                                         $content_navigation['actions'][$mode] = [
1080                                                 'class' => ( $onPage && $action == $mode ) ? 'selected' : false,
1081                                                 'text' => wfMessageFallback( "$skname-action-$mode", $mode )
1082                                                         ->setContext( $this->getContext() )->text(),
1083                                                 'href' => $title->getLocalURL( "action=$mode" )
1084                                         ];
1085                                 }
1086
1087                                 // Checks if the user is logged in
1088                                 if ( $this->loggedin && $user->isAllowedAll( 'viewmywatchlist', 'editmywatchlist' ) ) {
1089                                         /**
1090                                          * The following actions use messages which, if made particular to
1091                                          * the any specific skins, would break the Ajax code which makes this
1092                                          * action happen entirely inline. OutputPage::getJSVars
1093                                          * defines a set of messages in a javascript object - and these
1094                                          * messages are assumed to be global for all skins. Without making
1095                                          * a change to that procedure these messages will have to remain as
1096                                          * the global versions.
1097                                          */
1098                                         $mode = $user->isWatched( $title ) ? 'unwatch' : 'watch';
1099                                         $content_navigation['actions'][$mode] = [
1100                                                 'class' => 'mw-watchlink ' . (
1101                                                         $onPage && ( $action == 'watch' || $action == 'unwatch' ) ? 'selected' : ''
1102                                                 ),
1103                                                 // uses 'watch' or 'unwatch' message
1104                                                 'text' => $this->msg( $mode )->text(),
1105                                                 'href' => $title->getLocalURL( [ 'action' => $mode ] ),
1106                                                 // Set a data-mw=interface attribute, which the mediawiki.page.ajax
1107                                                 // module will look for to make sure it's a trusted link
1108                                                 'data' => [
1109                                                         'mw' => 'interface',
1110                                                 ],
1111                                         ];
1112                                 }
1113                         }
1114
1115                         // Avoid PHP 7.1 warning of passing $this by reference
1116                         $skinTemplate = $this;
1117                         Hooks::runWithoutAbort(
1118                                 'SkinTemplateNavigation',
1119                                 [ &$skinTemplate, &$content_navigation ]
1120                         );
1121
1122                         if ( $userCanRead && !$wgDisableLangConversion ) {
1123                                 $pageLang = $title->getPageLanguage();
1124                                 // Checks that language conversion is enabled and variants exist
1125                                 // And if it is not in the special namespace
1126                                 if ( $pageLang->hasVariants() ) {
1127                                         // Gets list of language variants
1128                                         $variants = $pageLang->getVariants();
1129                                         // Gets preferred variant (note that user preference is
1130                                         // only possible for wiki content language variant)
1131                                         $preferred = $pageLang->getPreferredVariant();
1132                                         if ( Action::getActionName( $this ) === 'view' ) {
1133                                                 $params = $request->getQueryValues();
1134                                                 unset( $params['title'] );
1135                                         } else {
1136                                                 $params = [];
1137                                         }
1138                                         // Loops over each variant
1139                                         foreach ( $variants as $code ) {
1140                                                 // Gets variant name from language code
1141                                                 $varname = $pageLang->getVariantname( $code );
1142                                                 // Appends variant link
1143                                                 $content_navigation['variants'][] = [
1144                                                         'class' => ( $code == $preferred ) ? 'selected' : false,
1145                                                         'text' => $varname,
1146                                                         'href' => $title->getLocalURL( [ 'variant' => $code ] + $params ),
1147                                                         'lang' => LanguageCode::bcp47( $code ),
1148                                                         'hreflang' => LanguageCode::bcp47( $code ),
1149                                                 ];
1150                                         }
1151                                 }
1152                         }
1153                 } else {
1154                         // If it's not content, it's got to be a special page
1155                         $content_navigation['namespaces']['special'] = [
1156                                 'class' => 'selected',
1157                                 'text' => $this->msg( 'nstab-special' )->text(),
1158                                 'href' => $request->getRequestURL(), // @see: T4457, T4510
1159                                 'context' => 'subject'
1160                         ];
1161
1162                         // Avoid PHP 7.1 warning of passing $this by reference
1163                         $skinTemplate = $this;
1164                         Hooks::runWithoutAbort( 'SkinTemplateNavigation::SpecialPage',
1165                                 [ &$skinTemplate, &$content_navigation ] );
1166                 }
1167
1168                 // Avoid PHP 7.1 warning of passing $this by reference
1169                 $skinTemplate = $this;
1170                 // Equiv to SkinTemplateContentActions
1171                 Hooks::runWithoutAbort( 'SkinTemplateNavigation::Universal',
1172                         [ &$skinTemplate, &$content_navigation ] );
1173
1174                 // Setup xml ids and tooltip info
1175                 foreach ( $content_navigation as $section => &$links ) {
1176                         foreach ( $links as $key => &$link ) {
1177                                 $xmlID = $key;
1178                                 if ( isset( $link['context'] ) && $link['context'] == 'subject' ) {
1179                                         $xmlID = 'ca-nstab-' . $xmlID;
1180                                 } elseif ( isset( $link['context'] ) && $link['context'] == 'talk' ) {
1181                                         $xmlID = 'ca-talk';
1182                                         $link['rel'] = 'discussion';
1183                                 } elseif ( $section == 'variants' ) {
1184                                         $xmlID = 'ca-varlang-' . $xmlID;
1185                                 } else {
1186                                         $xmlID = 'ca-' . $xmlID;
1187                                 }
1188                                 $link['id'] = $xmlID;
1189                         }
1190                 }
1191
1192                 # We don't want to give the watch tab an accesskey if the
1193                 # page is being edited, because that conflicts with the
1194                 # accesskey on the watch checkbox.  We also don't want to
1195                 # give the edit tab an accesskey, because that's fairly
1196                 # superfluous and conflicts with an accesskey (Ctrl-E) often
1197                 # used for editing in Safari.
1198                 if ( in_array( $action, [ 'edit', 'submit' ] ) ) {
1199                         if ( isset( $content_navigation['views']['edit'] ) ) {
1200                                 $content_navigation['views']['edit']['tooltiponly'] = true;
1201                         }
1202                         if ( isset( $content_navigation['actions']['watch'] ) ) {
1203                                 $content_navigation['actions']['watch']['tooltiponly'] = true;
1204                         }
1205                         if ( isset( $content_navigation['actions']['unwatch'] ) ) {
1206                                 $content_navigation['actions']['unwatch']['tooltiponly'] = true;
1207                         }
1208                 }
1209
1210                 return $content_navigation;
1211         }
1212
1213         /**
1214          * an array of edit links by default used for the tabs
1215          * @param array $content_navigation
1216          * @return array
1217          */
1218         private function buildContentActionUrls( $content_navigation ) {
1219                 // content_actions has been replaced with content_navigation for backwards
1220                 // compatibility and also for skins that just want simple tabs content_actions
1221                 // is now built by flattening the content_navigation arrays into one
1222
1223                 $content_actions = [];
1224
1225                 foreach ( $content_navigation as $links ) {
1226                         foreach ( $links as $key => $value ) {
1227                                 if ( isset( $value['redundant'] ) && $value['redundant'] ) {
1228                                         // Redundant tabs are dropped from content_actions
1229                                         continue;
1230                                 }
1231
1232                                 // content_actions used to have ids built using the "ca-$key" pattern
1233                                 // so the xmlID based id is much closer to the actual $key that we want
1234                                 // for that reason we'll just strip out the ca- if present and use
1235                                 // the latter potion of the "id" as the $key
1236                                 if ( isset( $value['id'] ) && substr( $value['id'], 0, 3 ) == 'ca-' ) {
1237                                         $key = substr( $value['id'], 3 );
1238                                 }
1239
1240                                 if ( isset( $content_actions[$key] ) ) {
1241                                         wfDebug( __METHOD__ . ": Found a duplicate key for $key while flattening " .
1242                                                 "content_navigation into content_actions.\n" );
1243                                         continue;
1244                                 }
1245
1246                                 $content_actions[$key] = $value;
1247                         }
1248                 }
1249
1250                 return $content_actions;
1251         }
1252
1253         /**
1254          * build array of common navigation links
1255          * @return array
1256          */
1257         protected function buildNavUrls() {
1258                 global $wgUploadNavigationUrl;
1259
1260                 $out = $this->getOutput();
1261                 $request = $this->getRequest();
1262
1263                 $nav_urls = [];
1264                 $nav_urls['mainpage'] = [ 'href' => self::makeMainPageUrl() ];
1265                 if ( $wgUploadNavigationUrl ) {
1266                         $nav_urls['upload'] = [ 'href' => $wgUploadNavigationUrl ];
1267                 } elseif ( UploadBase::isEnabled() && UploadBase::isAllowed( $this->getUser() ) === true ) {
1268                         $nav_urls['upload'] = [ 'href' => self::makeSpecialUrl( 'Upload' ) ];
1269                 } else {
1270                         $nav_urls['upload'] = false;
1271                 }
1272                 $nav_urls['specialpages'] = [ 'href' => self::makeSpecialUrl( 'Specialpages' ) ];
1273
1274                 $nav_urls['print'] = false;
1275                 $nav_urls['permalink'] = false;
1276                 $nav_urls['info'] = false;
1277                 $nav_urls['whatlinkshere'] = false;
1278                 $nav_urls['recentchangeslinked'] = false;
1279                 $nav_urls['contributions'] = false;
1280                 $nav_urls['log'] = false;
1281                 $nav_urls['blockip'] = false;
1282                 $nav_urls['emailuser'] = false;
1283                 $nav_urls['userrights'] = false;
1284
1285                 // A print stylesheet is attached to all pages, but nobody ever
1286                 // figures that out. :)  Add a link...
1287                 if ( !$out->isPrintable() && ( $out->isArticle() || $this->getTitle()->isSpecialPage() ) ) {
1288                         $nav_urls['print'] = [
1289                                 'text' => $this->msg( 'printableversion' )->text(),
1290                                 'href' => $this->getTitle()->getLocalURL(
1291                                         $request->appendQueryValue( 'printable', 'yes' ) )
1292                         ];
1293                 }
1294
1295                 if ( $out->isArticle() ) {
1296                         // Also add a "permalink" while we're at it
1297                         $revid = $this->getRevisionId();
1298                         if ( $revid ) {
1299                                 $nav_urls['permalink'] = [
1300                                         'text' => $this->msg( 'permalink' )->text(),
1301                                         'href' => $this->getTitle()->getLocalURL( "oldid=$revid" )
1302                                 ];
1303                         }
1304
1305                         // Avoid PHP 7.1 warning of passing $this by reference
1306                         $skinTemplate = $this;
1307                         // Use the copy of revision ID in case this undocumented, shady hook tries to mess with internals
1308                         Hooks::run( 'SkinTemplateBuildNavUrlsNav_urlsAfterPermalink',
1309                                 [ &$skinTemplate, &$nav_urls, &$revid, &$revid ] );
1310                 }
1311
1312                 if ( $out->isArticleRelated() ) {
1313                         $nav_urls['whatlinkshere'] = [
1314                                 'href' => SpecialPage::getTitleFor( 'Whatlinkshere', $this->thispage )->getLocalURL()
1315                         ];
1316
1317                         $nav_urls['info'] = [
1318                                 'text' => $this->msg( 'pageinfo-toolboxlink' )->text(),
1319                                 'href' => $this->getTitle()->getLocalURL( "action=info" )
1320                         ];
1321
1322                         if ( $this->getTitle()->exists() || $this->getTitle()->inNamespace( NS_CATEGORY ) ) {
1323                                 $nav_urls['recentchangeslinked'] = [
1324                                         'href' => SpecialPage::getTitleFor( 'Recentchangeslinked', $this->thispage )->getLocalURL()
1325                                 ];
1326                         }
1327                 }
1328
1329                 $user = $this->getRelevantUser();
1330                 if ( $user ) {
1331                         $rootUser = $user->getName();
1332
1333                         $nav_urls['contributions'] = [
1334                                 'text' => $this->msg( 'contributions', $rootUser )->text(),
1335                                 'href' => self::makeSpecialUrlSubpage( 'Contributions', $rootUser ),
1336                                 'tooltip-params' => [ $rootUser ],
1337                         ];
1338
1339                         $nav_urls['log'] = [
1340                                 'href' => self::makeSpecialUrlSubpage( 'Log', $rootUser )
1341                         ];
1342
1343                         if ( $this->getUser()->isAllowed( 'block' ) ) {
1344                                 $nav_urls['blockip'] = [
1345                                         'text' => $this->msg( 'blockip', $rootUser )->text(),
1346                                         'href' => self::makeSpecialUrlSubpage( 'Block', $rootUser )
1347                                 ];
1348                         }
1349
1350                         if ( $this->showEmailUser( $user ) ) {
1351                                 $nav_urls['emailuser'] = [
1352                                         'text' => $this->msg( 'tool-link-emailuser', $rootUser )->text(),
1353                                         'href' => self::makeSpecialUrlSubpage( 'Emailuser', $rootUser ),
1354                                         'tooltip-params' => [ $rootUser ],
1355                                 ];
1356                         }
1357
1358                         if ( !$user->isAnon() ) {
1359                                 $sur = new UserrightsPage;
1360                                 $sur->setContext( $this->getContext() );
1361                                 $canChange = $sur->userCanChangeRights( $user );
1362                                 $nav_urls['userrights'] = [
1363                                         'text' => $this->msg(
1364                                                 $canChange ? 'tool-link-userrights' : 'tool-link-userrights-readonly',
1365                                                 $rootUser
1366                                         )->text(),
1367                                         'href' => self::makeSpecialUrlSubpage( 'Userrights', $rootUser )
1368                                 ];
1369                         }
1370                 }
1371
1372                 return $nav_urls;
1373         }
1374
1375         /**
1376          * Generate strings used for xml 'id' names
1377          * @return string
1378          */
1379         protected function getNameSpaceKey() {
1380                 return $this->getTitle()->getNamespaceKey();
1381         }
1382 }