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         /**
 175          * @return QuickTemplate
 176          */
 177         protected function setupTemplateForOutput() {
 178                 $request = $this->getRequest();
 179                 $user = $this->getUser();
 180                 $title = $this->getTitle();
 181
 182                 $tpl = $this->setupTemplate( $this->template, 'skins' );
 183
 184                 $this->thispage = $title->getPrefixedDBkey();
 185                 $this->titletxt = $title->getPrefixedText();
 186                 $this->userpage = $user->getUserPage()->getPrefixedText();
 187                 $query = [];
 188                 if ( !$request->wasPosted() ) {
 189                         $query = $request->getValues();
 190                         unset( $query['title'] );
 191                         unset( $query['returnto'] );
 192                         unset( $query['returntoquery'] );
 193                 }
 194                 $this->thisquery = wfArrayToCgi( $query );
 195                 $this->loggedin = $user->isLoggedIn();
 196                 $this->username = $user->getName();
 197
 198                 if ( $this->loggedin ) {
 199                         $this->userpageUrlDetails = self::makeUrlDetails( $this->userpage );
 200                 } else {
 201                         # This won't be used in the standard skins, but we define it to preserve the interface
 202                         # To save time, we check for existence
 203                         $this->userpageUrlDetails = self::makeKnownUrlDetails( $this->userpage );
 204                 }
 205
 206                 return $tpl;
 207         }
 208
 209         /**
 210          * initialize various variables and generate the template
 211          *
 212          * @param OutputPage|null $out
 213          */
 214         function outputPage( OutputPage $out = null ) {
 215                 Profiler::instance()->setTemplated( true );
 216
 217                 $oldContext = null;
 218                 if ( $out !== null ) {
 219                         // Deprecated since 1.20, note added in 1.25
 220                         wfDeprecated( __METHOD__, '1.25' );
 221                         $oldContext = $this->getContext();
 222                         $this->setContext( $out->getContext() );
 223                 }
 224
 225                 $out = $this->getOutput();
 226
 227                 $this->initPage( $out );
 228                 $tpl = $this->prepareQuickTemplate();
 229                 // execute template
 230                 $res = $tpl->execute();
 231
 232                 // result may be an error
 233                 $this->printOrError( $res );
 234
 235                 if ( $oldContext ) {
 236                         $this->setContext( $oldContext );
 237                 }
 238         }
 239
 240         /**
 241          * Wrap the body text with language information and identifiable element
 242          *
 243          * @param Title $title
 244          * @param string $html body text
 245          * @return string html
 246          */
 247         protected function wrapHTML( $title, $html ) {
 248                 # An ID that includes the actual body text; without categories, contentSub, ...
 249                 $realBodyAttribs = [ 'id' => 'mw-content-text' ];
 250
 251                 # Add a mw-content-ltr/rtl class to be able to style based on text
 252                 # direction when the content is different from the UI language (only
 253                 # when viewing)
 254                 # Most information on special pages and file pages is in user language,
 255                 # rather than content language, so those will not get this
 256                 if ( Action::getActionName( $this ) === 'view' &&
 257                         ( !$title->inNamespaces( NS_SPECIAL, NS_FILE ) || $title->isRedirect() ) ) {
 258                         $pageLang = $title->getPageViewLanguage();
 259                         $realBodyAttribs['lang'] = $pageLang->getHtmlCode();
 260                         $realBodyAttribs['dir'] = $pageLang->getDir();
 261                         $realBodyAttribs['class'] = 'mw-content-' . $pageLang->getDir();
 262                 }
 263
 264                 return Html::rawElement( 'div', $realBodyAttribs, $html );
 265         }
 266
 267         /**
 268          * initialize various variables and generate the template
 269          *
 270          * @since 1.23
 271          * @return QuickTemplate The template to be executed by outputPage
 272          */
 273         protected function prepareQuickTemplate() {
 274                 global $wgScript, $wgStylePath, $wgMimeType, $wgJsMimeType,
 275                         $wgSitename, $wgLogo, $wgMaxCredits,
 276                         $wgShowCreditsIfMax, $wgArticlePath,
 277                         $wgScriptPath, $wgServer;
 278
 279                 $title = $this->getTitle();
 280                 $request = $this->getRequest();
 281                 $out = $this->getOutput();
 282                 $tpl = $this->setupTemplateForOutput();
 283
 284                 $tpl->set( 'title', $out->getPageTitle() );
 285                 $tpl->set( 'pagetitle', $out->getHTMLTitle() );
 286                 $tpl->set( 'displaytitle', $out->mPageLinkTitle );
 287
 288                 $tpl->set( 'thispage', $this->thispage );
 289                 $tpl->set( 'titleprefixeddbkey', $this->thispage );
 290                 $tpl->set( 'titletext', $title->getText() );
 291                 $tpl->set( 'articleid', $title->getArticleID() );
 292
 293                 $tpl->set( 'isarticle', $out->isArticle() );
 294
 295                 $subpagestr = $this->subPageSubtitle();
 296                 if ( $subpagestr !== '' ) {
 297                         $subpagestr = '<span class="subpages">' . $subpagestr . '</span>';
 298                 }
 299                 $tpl->set( 'subtitle', $subpagestr . $out->getSubtitle() );
 300
 301                 $undelete = $this->getUndeleteLink();
 302                 if ( $undelete === '' ) {
 303                         $tpl->set( 'undelete', '' );
 304                 } else {
 305                         $tpl->set( 'undelete', '<span class="subpages">' . $undelete . '</span>' );
 306                 }
 307
 308                 $tpl->set( 'catlinks', $this->getCategories() );
 309                 if ( $out->isSyndicated() ) {
 310                         $feeds = [];
 311                         foreach ( $out->getSyndicationLinks() as $format => $link ) {
 312                                 $feeds[$format] = [
 313                                         // Messages: feed-atom, feed-rss
 314                                         'text' => $this->msg( "feed-$format" )->text(),
 315                                         'href' => $link
 316                                 ];
 317                         }
 318                         $tpl->set( 'feeds', $feeds );
 319                 } else {
 320                         $tpl->set( 'feeds', false );
 321                 }
 322
 323                 $tpl->set( 'mimetype', $wgMimeType );
 324                 $tpl->set( 'jsmimetype', $wgJsMimeType );
 325                 $tpl->set( 'charset', 'UTF-8' );
 326                 $tpl->set( 'wgScript', $wgScript );
 327                 $tpl->set( 'skinname', $this->skinname );
 328                 $tpl->set( 'skinclass', static::class );
 329                 $tpl->set( 'skin', $this );
 330                 $tpl->set( 'stylename', $this->stylename );
 331                 $tpl->set( 'printable', $out->isPrintable() );
 332                 $tpl->set( 'handheld', $request->getBool( 'handheld' ) );
 333                 $tpl->set( 'loggedin', $this->loggedin );
 334                 $tpl->set( 'notspecialpage', !$title->isSpecialPage() );
 335                 $tpl->set( 'searchaction', $this->escapeSearchLink() );
 336                 $tpl->set( 'searchtitle', SpecialPage::getTitleFor( 'Search' )->getPrefixedDBkey() );
 337                 $tpl->set( 'search', trim( $request->getVal( 'search' ) ) );
 338                 $tpl->set( 'stylepath', $wgStylePath );
 339                 $tpl->set( 'articlepath', $wgArticlePath );
 340                 $tpl->set( 'scriptpath', $wgScriptPath );
 341                 $tpl->set( 'serverurl', $wgServer );
 342                 $tpl->set( 'logopath', $wgLogo );
 343                 $tpl->set( 'sitename', $wgSitename );
 344
 345                 $userLang = $this->getLanguage();
 346                 $userLangCode = $userLang->getHtmlCode();
 347                 $userLangDir = $userLang->getDir();
 348
 349                 $tpl->set( 'lang', $userLangCode );
 350                 $tpl->set( 'dir', $userLangDir );
 351                 $tpl->set( 'rtl', $userLang->isRTL() );
 352
 353                 $tpl->set( 'capitalizeallnouns', $userLang->capitalizeAllNouns() ? ' capitalize-all-nouns' : '' );
 354                 $tpl->set( 'showjumplinks', true ); // showjumplinks preference has been removed
 355                 $tpl->set( 'username', $this->loggedin ? $this->username : null );
 356                 $tpl->set( 'userpage', $this->userpage );
 357                 $tpl->set( 'userpageurl', $this->userpageUrlDetails['href'] );
 358                 $tpl->set( 'userlang', $userLangCode );
 359
 360                 // Users can have their language set differently than the
 361                 // content of the wiki. For these users, tell the web browser
 362                 // that interface elements are in a different language.
 363                 $tpl->set( 'userlangattributes', '' );
 364                 $tpl->set( 'specialpageattributes', '' ); # obsolete
 365                 // Used by VectorBeta to insert HTML before content but after the
 366                 // heading for the page title. Defaults to empty string.
 367                 $tpl->set( 'prebodyhtml', '' );
 368
 369                 $contLang = MediaWikiServices::getInstance()->getContentLanguage();
 370                 if (
 371                         $userLangCode !== $contLang->getHtmlCode() ||
 372                         $userLangDir !== $contLang->getDir()
 373                 ) {
 374                         $escUserlang = htmlspecialchars( $userLangCode );
 375                         $escUserdir = htmlspecialchars( $userLangDir );
 376                         // Attributes must be in double quotes because htmlspecialchars() doesn't
 377                         // escape single quotes
 378                         $attrs = " lang=\"$escUserlang\" dir=\"$escUserdir\"";
 379                         $tpl->set( 'userlangattributes', $attrs );
 380                 }
 381
 382                 $tpl->set( 'newtalk', $this->getNewtalks() );
 383                 $tpl->set( 'logo', $this->logoText() );
 384
 385                 $tpl->set( 'copyright', false );
 386                 // No longer used
 387                 $tpl->set( 'viewcount', false );
 388                 $tpl->set( 'lastmod', false );
 389                 $tpl->set( 'credits', false );
 390                 $tpl->set( 'numberofwatchingusers', false );
 391                 if ( $title->exists() ) {
 392                         if ( $out->isArticle() && $this->isRevisionCurrent() ) {
 393                                 if ( $wgMaxCredits != 0 ) {
 394                                         /** @var CreditsAction $action */
 395                                         $action = Action::factory(
 396                                                 'credits', $this->getWikiPage(), $this->getContext() );
 397                                         $tpl->set( 'credits',
 398                                                 $action->getCredits( $wgMaxCredits, $wgShowCreditsIfMax ) );
 399                                 } else {
 400                                         $tpl->set( 'lastmod', $this->lastModified() );
 401                                 }
 402                         }
 403                         if ( $out->showsCopyright() ) {
 404                                 $tpl->set( 'copyright', $this->getCopyright() );
 405                         }
 406                 }
 407
 408                 $tpl->set( 'copyrightico', $this->getCopyrightIcon() );
 409                 $tpl->set( 'poweredbyico', $this->getPoweredBy() );
 410                 $tpl->set( 'disclaimer', $this->disclaimerLink() );
 411                 $tpl->set( 'privacy', $this->privacyLink() );
 412                 $tpl->set( 'about', $this->aboutLink() );
 413
 414                 $tpl->set( 'footerlinks', [
 415                         'info' => [
 416                                 'lastmod',
 417                                 'numberofwatchingusers',
 418                                 'credits',
 419                                 'copyright',
 420                         ],
 421                         'places' => [
 422                                 'privacy',
 423                                 'about',
 424                                 'disclaimer',
 425                         ],
 426                 ] );
 427
 428                 global $wgFooterIcons;
 429                 $tpl->set( 'footericons', $wgFooterIcons );
 430                 foreach ( $tpl->data['footericons'] as $footerIconsKey => &$footerIconsBlock ) {
 431                         if ( count( $footerIconsBlock ) > 0 ) {
 432                                 foreach ( $footerIconsBlock as &$footerIcon ) {
 433                                         if ( isset( $footerIcon['src'] ) ) {
 434                                                 if ( !isset( $footerIcon['width'] ) ) {
 435                                                         $footerIcon['width'] = 88;
 436                                                 }
 437                                                 if ( !isset( $footerIcon['height'] ) ) {
 438                                                         $footerIcon['height'] = 31;
 439                                                 }
 440                                         }
 441                                 }
 442                         } else {
 443                                 unset( $tpl->data['footericons'][$footerIconsKey] );
 444                         }
 445                 }
 446
 447                 $tpl->set( 'indicators', $out->getIndicators() );
 448
 449                 $tpl->set( 'sitenotice', $this->getSiteNotice() );
 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->set( 'bodytext', $out->mBodytext );
 454
 455                 $language_urls = $this->getLanguages();
 456                 if ( count( $language_urls ) ) {
 457                         $tpl->set( '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->set( 'content_navigation', $content_navigation );
 467                 $tpl->set( 'content_actions', $content_actions );
 468
 469                 $tpl->set( 'sidebar', $this->buildSidebar() );
 470                 $tpl->set( 'nav_urls', $this->buildNavUrls() );
 471
 472                 // Do this last in case hooks above add bottom scripts
 473                 $tpl->set( 'bottomscripts', $this->bottomScripts() );
 474
 475                 // Set the head scripts near the end, in case the above actions resulted in added scripts
 476                 $tpl->set( 'headelement', $out->headElement( $this ) );
 477
 478                 $tpl->set( 'debug', '' );
 479                 $tpl->set( 'debughtml', $this->generateDebugHTML() );
 480                 $tpl->set( 'reporttime', wfReportTime( $out->getCSPNonce() ) );
 481
 482                 // Avoid PHP 7.1 warning of passing $this by reference
 483                 $skinTemplate = $this;
 484                 // original version by hansm
 485                 if ( !Hooks::run( 'SkinTemplateOutputPageBeforeExec', [ &$skinTemplate, &$tpl ] ) ) {
 486                         wfDebug( __METHOD__ . ": Hook SkinTemplateOutputPageBeforeExec broke outputPage execution!\n" );
 487                 }
 488
 489                 // Set the bodytext to another key so that skins can just output it on its own
 490                 // and output printfooter and debughtml separately
 491                 $tpl->set( 'bodycontent', $tpl->data['bodytext'] );
 492
 493                 // Append printfooter and debughtml onto bodytext so that skins that
 494                 // were already using bodytext before they were split out don't suddenly
 495                 // start not outputting information.
 496                 $tpl->data['bodytext'] .= Html::rawElement(
 497                         'div',
 498                         [ 'class' => 'printfooter' ],
 499                         "\n{$tpl->data['printfooter']}"
 500                 ) . "\n";
 501                 $tpl->data['bodytext'] .= $tpl->data['debughtml'];
 502
 503                 // allow extensions adding stuff after the page content.
 504                 // See Skin::afterContentHook() for further documentation.
 505                 $tpl->set( 'dataAfterContent', $this->afterContentHook() );
 506
 507                 return $tpl;
 508         }
 509
 510         /**
 511          * Get the HTML for the p-personal list
 512          * @return string
 513          */
 514         public function getPersonalToolsList() {
 515                 return $this->makePersonalToolsList();
 516         }
 517
 518         /**
 519          * Get the HTML for the personal tools list
 520          *
 521          * @since 1.31
 522          *
 523          * @param array|null $personalTools
 524          * @param array $options
 525          * @return string
 526          */
 527         public function makePersonalToolsList( $personalTools = null, $options = [] ) {
 528                 $tpl = $this->setupTemplateForOutput();
 529                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 530                 $html = '';
 531
 532                 if ( $personalTools === null ) {
 533                         $personalTools = ( $tpl instanceof BaseTemplate )
 534                                 ? $tpl->getPersonalTools()
 535                                 : [];
 536                 }
 537
 538                 foreach ( $personalTools as $key => $item ) {
 539                         $html .= $tpl->makeListItem( $key, $item, $options );
 540                 }
 541
 542                 return $html;
 543         }
 544
 545         /**
 546          * Get personal tools for the user
 547          *
 548          * @since 1.31
 549          *
 550          * @return array Array of personal tools
 551          */
 552         public function getStructuredPersonalTools() {
 553                 $tpl = $this->setupTemplateForOutput();
 554                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 555
 556                 return ( $tpl instanceof BaseTemplate ) ? $tpl->getPersonalTools() : [];
 557         }
 558
 559         /**
 560          * Format language name for use in sidebar interlanguage links list.
 561          * By default it is capitalized.
 562          *
 563          * @param string $name Language name, e.g. "English" or "español"
 564          * @return string
 565          * @private
 566          */
 567         function formatLanguageName( $name ) {
 568                 return $this->getLanguage()->ucfirst( $name );
 569         }
 570
 571         /**
 572          * Output the string, or print error message if it's
 573          * an error object of the appropriate type.
 574          * For the base class, assume strings all around.
 575          *
 576          * @param string $str
 577          * @private
 578          */
 579         function printOrError( $str ) {
 580                 echo $str;
 581         }
 582
 583         /**
 584          * Output a boolean indicating if buildPersonalUrls should output separate
 585          * login and create account links or output a combined link
 586          * By default we simply return a global config setting that affects most skins
 587          * This is setup as a method so that like with $wgLogo and getLogo() a skin
 588          * can override this setting and always output one or the other if it has
 589          * a reason it can't output one of the two modes.
 590          * @return bool
 591          */
 592         function useCombinedLoginLink() {
 593                 global $wgUseCombinedLoginLink;
 594                 return $wgUseCombinedLoginLink;
 595         }
 596
 597         /**
 598          * build array of urls for personal toolbar
 599          * @return array
 600          */
 601         protected function buildPersonalUrls() {
 602                 $title = $this->getTitle();
 603                 $request = $this->getRequest();
 604                 $pageurl = $title->getLocalURL();
 605                 $authManager = AuthManager::singleton();
 606
 607                 /* set up the default links for the personal toolbar */
 608                 $personal_urls = [];
 609
 610                 # Due to T34276, if a user does not have read permissions,
 611                 # $this->getTitle() will just give Special:Badtitle, which is
 612                 # not especially useful as a returnto parameter. Use the title
 613                 # from the request instead, if there was one.
 614                 if ( $this->getUser()->isAllowed( 'read' ) ) {
 615                         $page = $this->getTitle();
 616                 } else {
 617                         $page = Title::newFromText( $request->getVal( 'title', '' ) );
 618                 }
 619                 $page = $request->getVal( 'returnto', $page );
 620                 $a = [];
 621                 if ( strval( $page ) !== '' ) {
 622                         $a['returnto'] = $page;
 623                         $query = $request->getVal( 'returntoquery', $this->thisquery );
 624                         if ( $query != '' ) {
 625                                 $a['returntoquery'] = $query;
 626                         }
 627                 }
 628
 629                 $returnto = wfArrayToCgi( $a );
 630                 if ( $this->loggedin ) {
 631                         $personal_urls['userpage'] = [
 632                                 'text' => $this->username,
 633                                 'href' => &$this->userpageUrlDetails['href'],
 634                                 'class' => $this->userpageUrlDetails['exists'] ? false : 'new',
 635                                 'exists' => $this->userpageUrlDetails['exists'],
 636                                 'active' => ( $this->userpageUrlDetails['href'] == $pageurl ),
 637                                 'dir' => 'auto'
 638                         ];
 639                         $usertalkUrlDetails = $this->makeTalkUrlDetails( $this->userpage );
 640                         $personal_urls['mytalk'] = [
 641                                 'text' => $this->msg( 'mytalk' )->text(),
 642                                 'href' => &$usertalkUrlDetails['href'],
 643                                 'class' => $usertalkUrlDetails['exists'] ? false : 'new',
 644                                 'exists' => $usertalkUrlDetails['exists'],
 645                                 'active' => ( $usertalkUrlDetails['href'] == $pageurl )
 646                         ];
 647                         $href = self::makeSpecialUrl( 'Preferences' );
 648                         $personal_urls['preferences'] = [
 649                                 'text' => $this->msg( 'mypreferences' )->text(),
 650                                 'href' => $href,
 651                                 'active' => ( $href == $pageurl )
 652                         ];
 653
 654                         if ( $this->getUser()->isAllowed( 'viewmywatchlist' ) ) {
 655                                 $href = self::makeSpecialUrl( 'Watchlist' );
 656                                 $personal_urls['watchlist'] = [
 657                                         'text' => $this->msg( 'mywatchlist' )->text(),
 658                                         'href' => $href,
 659                                         'active' => ( $href == $pageurl )
 660                                 ];
 661                         }
 662
 663                         # We need to do an explicit check for Special:Contributions, as we
 664                         # have to match both the title, and the target, which could come
 665                         # from request values (Special:Contributions?target=Jimbo_Wales)
 666                         # or be specified in "sub page" form
 667                         # (Special:Contributions/Jimbo_Wales). The plot
 668                         # thickens, because the Title object is altered for special pages,
 669                         # so it doesn't contain the original alias-with-subpage.
 670                         $origTitle = Title::newFromText( $request->getText( 'title' ) );
 671                         if ( $origTitle instanceof Title && $origTitle->isSpecialPage() ) {
 672                                 list( $spName, $spPar ) =
 673                                         MediaWikiServices::getInstance()->getSpecialPageFactory()->
 674                                                 resolveAlias( $origTitle->getText() );
 675                                 $active = $spName == 'Contributions'
 676                                         && ( ( $spPar && $spPar == $this->username )
 677                                                 || $request->getText( 'target' ) == $this->username );
 678                         } else {
 679                                 $active = false;
 680                         }
 681
 682                         $href = self::makeSpecialUrlSubpage( 'Contributions', $this->username );
 683                         $personal_urls['mycontris'] = [
 684                                 'text' => $this->msg( 'mycontris' )->text(),
 685                                 'href' => $href,
 686                                 'active' => $active
 687                         ];
 688
 689                         // if we can't set the user, we can't unset it either
 690                         if ( $request->getSession()->canSetUser() ) {
 691                                 $personal_urls['logout'] = [
 692                                         'text' => $this->msg( 'pt-userlogout' )->text(),
 693                                         'href' => self::makeSpecialUrl( 'Userlogout',
 694                                                 // userlogout link must always contain an & character, otherwise we might not be able
 695                                                 // to detect a buggy precaching proxy (T19790)
 696                                                 $title->isSpecial( 'Preferences' ) ? 'noreturnto' : $returnto ),
 697                                         'active' => false
 698                                 ];
 699                         }
 700                 } else {
 701                         $useCombinedLoginLink = $this->useCombinedLoginLink();
 702                         if ( !$authManager->canCreateAccounts() || !$authManager->canAuthenticateNow() ) {
 703                                 // don't show combined login/signup link if one of those is actually not available
 704                                 $useCombinedLoginLink = false;
 705                         }
 706
 707                         $loginlink = $this->getUser()->isAllowed( 'createaccount' ) && $useCombinedLoginLink
 708                                 ? 'nav-login-createaccount'
 709                                 : 'pt-login';
 710
 711                         $login_url = [
 712                                 'text' => $this->msg( $loginlink )->text(),
 713                                 'href' => self::makeSpecialUrl( 'Userlogin', $returnto ),
 714                                 'active' => $title->isSpecial( 'Userlogin' )
 715                                         || $title->isSpecial( 'CreateAccount' ) && $useCombinedLoginLink,
 716                         ];
 717                         $createaccount_url = [
 718                                 'text' => $this->msg( 'pt-createaccount' )->text(),
 719                                 'href' => self::makeSpecialUrl( 'CreateAccount', $returnto ),
 720                                 'active' => $title->isSpecial( 'CreateAccount' ),
 721                         ];
 722
 723                         // No need to show Talk and Contributions to anons if they can't contribute!
 724                         if ( User::groupHasPermission( '*', 'edit' ) ) {
 725                                 // Because of caching, we can't link directly to the IP talk and
 726                                 // contributions pages. Instead we use the special page shortcuts
 727                                 // (which work correctly regardless of caching). This means we can't
 728                                 // determine whether these links are active or not, but since major
 729                                 // skins (MonoBook, Vector) don't use this information, it's not a
 730                                 // huge loss.
 731                                 $personal_urls['anontalk'] = [
 732                                         'text' => $this->msg( 'anontalk' )->text(),
 733                                         'href' => self::makeSpecialUrlSubpage( 'Mytalk', false ),
 734                                         'active' => false
 735                                 ];
 736                                 $personal_urls['anoncontribs'] = [
 737                                         'text' => $this->msg( 'anoncontribs' )->text(),
 738                                         'href' => self::makeSpecialUrlSubpage( 'Mycontributions', false ),
 739                                         'active' => false
 740                                 ];
 741                         }
 742
 743                         if (
 744                                 $authManager->canCreateAccounts()
 745                                 && $this->getUser()->isAllowed( 'createaccount' )
 746                                 && !$useCombinedLoginLink
 747                         ) {
 748                                 $personal_urls['createaccount'] = $createaccount_url;
 749                         }
 750
 751                         if ( $authManager->canAuthenticateNow() ) {
 752                                 $key = User::groupHasPermission( '*', 'read' )
 753                                         ? 'login'
 754                                         : 'login-private';
 755                                 $personal_urls[$key] = $login_url;
 756                         }
 757                 }
 758
 759                 Hooks::runWithoutAbort( 'PersonalUrls', [ &$personal_urls, &$title, $this ] );
 760                 return $personal_urls;
 761         }
 762
 763         /**
 764          * Builds an array with tab definition
 765          *
 766          * @param Title $title Page Where the tab links to
 767          * @param string|array $message Message key or an array of message keys (will fall back)
 768          * @param bool $selected Display the tab as selected
 769          * @param string $query Query string attached to tab URL
 770          * @param bool $checkEdit Check if $title exists and mark with .new if one doesn't
 771          *
 772          * @return array
 773          */
 774         function tabAction( $title, $message, $selected, $query = '', $checkEdit = false ) {
 775                 $classes = [];
 776                 if ( $selected ) {
 777                         $classes[] = 'selected';
 778                 }
 779                 $exists = true;
 780                 if ( $checkEdit && !$title->isKnown() ) {
 781                         $classes[] = 'new';
 782                         $exists = false;
 783                         if ( $query !== '' ) {
 784                                 $query = 'action=edit&redlink=1&' . $query;
 785                         } else {
 786                                 $query = 'action=edit&redlink=1';
 787                         }
 788                 }
 789
 790                 $linkClass = MediaWikiServices::getInstance()->getLinkRenderer()->getLinkClasses( $title );
 791
 792                 // wfMessageFallback will nicely accept $message as an array of fallbacks
 793                 // or just a single key
 794                 $msg = wfMessageFallback( $message )->setContext( $this->getContext() );
 795                 if ( is_array( $message ) ) {
 796                         // for hook compatibility just keep the last message name
 797                         $message = end( $message );
 798                 }
 799                 if ( $msg->exists() ) {
 800                         $text = $msg->text();
 801                 } else {
 802                         $text = MediaWikiServices::getInstance()->getContentLanguage()->getConverter()->
 803                                 convertNamespace( MWNamespace::getSubject( $title->getNamespace() ) );
 804                 }
 805
 806                 // Avoid PHP 7.1 warning of passing $this by reference
 807                 $skinTemplate = $this;
 808                 $result = [];
 809                 if ( !Hooks::run( 'SkinTemplateTabAction', [ &$skinTemplate,
 810                                 $title, $message, $selected, $checkEdit,
 811                                 &$classes, &$query, &$text, &$result ] ) ) {
 812                         return $result;
 813                 }
 814
 815                 $result = [
 816                         'class' => implode( ' ', $classes ),
 817                         'text' => $text,
 818                         'href' => $title->getLocalURL( $query ),
 819                         'exists' => $exists,
 820                         'primary' => true ];
 821                 if ( $linkClass !== '' ) {
 822                         $result['link-class'] = $linkClass;
 823                 }
 824
 825                 return $result;
 826         }
 827
 828         function makeTalkUrlDetails( $name, $urlaction = '' ) {
 829                 $title = Title::newFromText( $name );
 830                 if ( !is_object( $title ) ) {
 831                         throw new MWException( __METHOD__ . " given invalid pagename $name" );
 832                 }
 833                 $title = $title->getTalkPage();
 834                 self::checkTitle( $title, $name );
 835                 return [
 836                         'href' => $title->getLocalURL( $urlaction ),
 837                         'exists' => $title->isKnown(),
 838                 ];
 839         }
 840
 841         /**
 842          * @todo is this even used?
 843          * @param string $name
 844          * @param string $urlaction
 845          * @return array
 846          */
 847         function makeArticleUrlDetails( $name, $urlaction = '' ) {
 848                 $title = Title::newFromText( $name );
 849                 $title = $title->getSubjectPage();
 850                 self::checkTitle( $title, $name );
 851                 return [
 852                         'href' => $title->getLocalURL( $urlaction ),
 853                         'exists' => $title->exists(),
 854                 ];
 855         }
 856
 857         /**
 858          * a structured array of links usually used for the tabs in a skin
 859          *
 860          * There are 4 standard sections
 861          * namespaces: Used for namespace tabs like special, page, and talk namespaces
 862          * views: Used for primary page views like read, edit, history
 863          * actions: Used for most extra page actions like deletion, protection, etc...
 864          * variants: Used to list the language variants for the page
 865          *
 866          * Each section's value is a key/value array of links for that section.
 867          * The links themselves have these common keys:
 868          * - class: The css classes to apply to the tab
 869          * - text: The text to display on the tab
 870          * - href: The href for the tab to point to
 871          * - rel: An optional rel= for the tab's link
 872          * - redundant: If true the tab will be dropped in skins using content_actions
 873          *   this is useful for tabs like "Read" which only have meaning in skins that
 874          *   take special meaning from the grouped structure of content_navigation
 875          *
 876          * Views also have an extra key which can be used:
 877          * - primary: If this is not true skins like vector may try to hide the tab
 878          *            when the user has limited space in their browser window
 879          *
 880          * content_navigation using code also expects these ids to be present on the
 881          * links, however these are usually automatically generated by SkinTemplate
 882          * itself and are not necessary when using a hook. The only things these may
 883          * matter to are people modifying content_navigation after it's initial creation:
 884          * - id: A "preferred" id, most skins are best off outputting this preferred
 885          *   id for best compatibility.
 886          * - tooltiponly: This is set to true for some tabs in cases where the system
 887          *   believes that the accesskey should not be added to the tab.
 888          *
 889          * @return array
 890          */
 891         protected function buildContentNavigationUrls() {
 892                 global $wgDisableLangConversion;
 893
 894                 // Display tabs for the relevant title rather than always the title itself
 895                 $title = $this->getRelevantTitle();
 896                 $onPage = $title->equals( $this->getTitle() );
 897
 898                 $out = $this->getOutput();
 899                 $request = $this->getRequest();
 900                 $user = $this->getUser();
 901
 902                 $content_navigation = [
 903                         'namespaces' => [],
 904                         'views' => [],
 905                         'actions' => [],
 906                         'variants' => []
 907                 ];
 908
 909                 // parameters
 910                 $action = $request->getVal( 'action', 'view' );
 911
 912                 $userCanRead = $title->quickUserCan( 'read', $user );
 913
 914                 // Avoid PHP 7.1 warning of passing $this by reference
 915                 $skinTemplate = $this;
 916                 $preventActiveTabs = false;
 917                 Hooks::run( 'SkinTemplatePreventOtherActiveTabs', [ &$skinTemplate, &$preventActiveTabs ] );
 918
 919                 // Checks if page is some kind of content
 920                 if ( $title->canExist() ) {
 921                         // Gets page objects for the related namespaces
 922                         $subjectPage = $title->getSubjectPage();
 923                         $talkPage = $title->getTalkPage();
 924
 925                         // Determines if this is a talk page
 926                         $isTalk = $title->isTalkPage();
 927
 928                         // Generates XML IDs from namespace names
 929                         $subjectId = $title->getNamespaceKey( '' );
 930
 931                         if ( $subjectId == 'main' ) {
 932                                 $talkId = 'talk';
 933                         } else {
 934                                 $talkId = "{$subjectId}_talk";
 935                         }
 936
 937                         $skname = $this->skinname;
 938
 939                         // Adds namespace links
 940                         $subjectMsg = [ "nstab-$subjectId" ];
 941                         if ( $subjectPage->isMainPage() ) {
 942                                 array_unshift( $subjectMsg, 'mainpage-nstab' );
 943                         }
 944                         $content_navigation['namespaces'][$subjectId] = $this->tabAction(
 945                                 $subjectPage, $subjectMsg, !$isTalk && !$preventActiveTabs, '', $userCanRead
 946                         );
 947                         $content_navigation['namespaces'][$subjectId]['context'] = 'subject';
 948                         $content_navigation['namespaces'][$talkId] = $this->tabAction(
 949                                 $talkPage, [ "nstab-$talkId", 'talk' ], $isTalk && !$preventActiveTabs, '', $userCanRead
 950                         );
 951                         $content_navigation['namespaces'][$talkId]['context'] = 'talk';
 952
 953                         if ( $userCanRead ) {
 954                                 // Adds "view" view link
 955                                 if ( $title->isKnown() ) {
 956                                         $content_navigation['views']['view'] = $this->tabAction(
 957                                                 $isTalk ? $talkPage : $subjectPage,
 958                                                 [ "$skname-view-view", 'view' ],
 959                                                 ( $onPage && ( $action == 'view' || $action == 'purge' ) ), '', true
 960                                         );
 961                                         // signal to hide this from simple content_actions
 962                                         $content_navigation['views']['view']['redundant'] = true;
 963                                 }
 964
 965                                 $page = $this->canUseWikiPage() ? $this->getWikiPage() : false;
 966                                 $isRemoteContent = $page && !$page->isLocal();
 967
 968                                 // If it is a non-local file, show a link to the file in its own repository
 969                                 // @todo abstract this for remote content that isn't a file
 970                                 if ( $isRemoteContent ) {
 971                                         $content_navigation['views']['view-foreign'] = [
 972                                                 'class' => '',
 973                                                 'text' => wfMessageFallback( "$skname-view-foreign", 'view-foreign' )->
 974                                                         setContext( $this->getContext() )->
 975                                                         params( $page->getWikiDisplayName() )->text(),
 976                                                 'href' => $page->getSourceURL(),
 977                                                 'primary' => false,
 978                                         ];
 979                                 }
 980
 981                                 // Checks if user can edit the current page if it exists or create it otherwise
 982                                 if ( $title->quickUserCan( 'edit', $user )
 983                                         && ( $title->exists() || $title->quickUserCan( 'create', $user ) )
 984                                 ) {
 985                                         // Builds CSS class for talk page links
 986                                         $isTalkClass = $isTalk ? ' istalk' : '';
 987                                         // Whether the user is editing the page
 988                                         $isEditing = $onPage && ( $action == 'edit' || $action == 'submit' );
 989                                         // Whether to show the "Add a new section" tab
 990                                         // Checks if this is a current rev of talk page and is not forced to be hidden
 991                                         $showNewSection = !$out->forceHideNewSectionLink()
 992                                                 && ( ( $isTalk && $this->isRevisionCurrent() ) || $out->showNewSectionLink() );
 993                                         $section = $request->getVal( 'section' );
 994
 995                                         if ( $title->exists()
 996                                                 || ( $title->getNamespace() == NS_MEDIAWIKI
 997                                                         && $title->getDefaultMessageText() !== false
 998                                                 )
 999                                         ) {
1000                                                 $msgKey = $isRemoteContent ? 'edit-local' : 'edit';
1001                                         } else {
1002                                                 $msgKey = $isRemoteContent ? 'create-local' : 'create';
1003                                         }
1004                                         $content_navigation['views']['edit'] = [
1005                                                 'class' => ( $isEditing && ( $section !== 'new' || !$showNewSection )
1006                                                         ? 'selected'
1007                                                         : ''
1008                                                 ) . $isTalkClass,
1009                                                 'text' => wfMessageFallback( "$skname-view-$msgKey", $msgKey )
1010                                                         ->setContext( $this->getContext() )->text(),
1011                                                 'href' => $title->getLocalURL( $this->editUrlOptions() ),
1012                                                 'primary' => !$isRemoteContent, // don't collapse this in vector
1013                                         ];
1014
1015                                         // section link
1016                                         if ( $showNewSection ) {
1017                                                 // Adds new section link
1018                                                 // $content_navigation['actions']['addsection']
1019                                                 $content_navigation['views']['addsection'] = [
1020                                                         'class' => ( $isEditing && $section == 'new' ) ? 'selected' : false,
1021                                                         'text' => wfMessageFallback( "$skname-action-addsection", 'addsection' )
1022                                                                 ->setContext( $this->getContext() )->text(),
1023                                                         'href' => $title->getLocalURL( 'action=edit&section=new' )
1024                                                 ];
1025                                         }
1026                                 // Checks if the page has some kind of viewable source content
1027                                 } elseif ( $title->hasSourceText() ) {
1028                                         // Adds view source view link
1029                                         $content_navigation['views']['viewsource'] = [
1030                                                 'class' => ( $onPage && $action == 'edit' ) ? 'selected' : false,
1031                                                 'text' => wfMessageFallback( "$skname-action-viewsource", 'viewsource' )
1032                                                         ->setContext( $this->getContext() )->text(),
1033                                                 'href' => $title->getLocalURL( $this->editUrlOptions() ),
1034                                                 'primary' => true, // don't collapse this in vector
1035                                         ];
1036                                 }
1037
1038                                 // Checks if the page exists
1039                                 if ( $title->exists() ) {
1040                                         // Adds history view link
1041                                         $content_navigation['views']['history'] = [
1042                                                 'class' => ( $onPage && $action == 'history' ) ? 'selected' : false,
1043                                                 'text' => wfMessageFallback( "$skname-view-history", 'history_short' )
1044                                                         ->setContext( $this->getContext() )->text(),
1045                                                 'href' => $title->getLocalURL( 'action=history' ),
1046                                         ];
1047
1048                                         if ( $title->quickUserCan( 'delete', $user ) ) {
1049                                                 $content_navigation['actions']['delete'] = [
1050                                                         'class' => ( $onPage && $action == 'delete' ) ? 'selected' : false,
1051                                                         'text' => wfMessageFallback( "$skname-action-delete", 'delete' )
1052                                                                 ->setContext( $this->getContext() )->text(),
1053                                                         'href' => $title->getLocalURL( 'action=delete' )
1054                                                 ];
1055                                         }
1056
1057                                         if ( $title->quickUserCan( 'move', $user ) ) {
1058                                                 $moveTitle = SpecialPage::getTitleFor( 'Movepage', $title->getPrefixedDBkey() );
1059                                                 $content_navigation['actions']['move'] = [
1060                                                         'class' => $this->getTitle()->isSpecial( 'Movepage' ) ? 'selected' : false,
1061                                                         'text' => wfMessageFallback( "$skname-action-move", 'move' )
1062                                                                 ->setContext( $this->getContext() )->text(),
1063                                                         'href' => $moveTitle->getLocalURL()
1064                                                 ];
1065                                         }
1066                                 } else {
1067                                         // article doesn't exist or is deleted
1068                                         if ( $title->quickUserCan( 'deletedhistory', $user ) ) {
1069                                                 $n = $title->isDeleted();
1070                                                 if ( $n ) {
1071                                                         $undelTitle = SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedDBkey() );
1072                                                         // If the user can't undelete but can view deleted
1073                                                         // history show them a "View .. deleted" tab instead.
1074                                                         $msgKey = $title->quickUserCan( 'undelete', $user ) ? 'undelete' : 'viewdeleted';
1075                                                         $content_navigation['actions']['undelete'] = [
1076                                                                 'class' => $this->getTitle()->isSpecial( 'Undelete' ) ? 'selected' : false,
1077                                                                 'text' => wfMessageFallback( "$skname-action-$msgKey", "{$msgKey}_short" )
1078                                                                         ->setContext( $this->getContext() )->numParams( $n )->text(),
1079                                                                 'href' => $undelTitle->getLocalURL()
1080                                                         ];
1081                                                 }
1082                                         }
1083                                 }
1084
1085                                 if ( $title->quickUserCan( 'protect', $user ) && $title->getRestrictionTypes() &&
1086                                         MWNamespace::getRestrictionLevels( $title->getNamespace(), $user ) !== [ '' ]
1087                                 ) {
1088                                         $mode = $title->isProtected() ? 'unprotect' : 'protect';
1089                                         $content_navigation['actions'][$mode] = [
1090                                                 'class' => ( $onPage && $action == $mode ) ? 'selected' : false,
1091                                                 'text' => wfMessageFallback( "$skname-action-$mode", $mode )
1092                                                         ->setContext( $this->getContext() )->text(),
1093                                                 'href' => $title->getLocalURL( "action=$mode" )
1094                                         ];
1095                                 }
1096
1097                                 // Checks if the user is logged in
1098                                 if ( $this->loggedin && $user->isAllowedAll( 'viewmywatchlist', 'editmywatchlist' ) ) {
1099                                         /**
1100                                          * The following actions use messages which, if made particular to
1101                                          * the any specific skins, would break the Ajax code which makes this
1102                                          * action happen entirely inline. OutputPage::getJSVars
1103                                          * defines a set of messages in a javascript object - and these
1104                                          * messages are assumed to be global for all skins. Without making
1105                                          * a change to that procedure these messages will have to remain as
1106                                          * the global versions.
1107                                          */
1108                                         $mode = $user->isWatched( $title ) ? 'unwatch' : 'watch';
1109                                         $content_navigation['actions'][$mode] = [
1110                                                 'class' => 'mw-watchlink ' . (
1111                                                         $onPage && ( $action == 'watch' || $action == 'unwatch' ) ? 'selected' : ''
1112                                                 ),
1113                                                 // uses 'watch' or 'unwatch' message
1114                                                 'text' => $this->msg( $mode )->text(),
1115                                                 'href' => $title->getLocalURL( [ 'action' => $mode ] ),
1116                                                 // Set a data-mw=interface attribute, which the mediawiki.page.ajax
1117                                                 // module will look for to make sure it's a trusted link
1118                                                 'data' => [
1119                                                         'mw' => 'interface',
1120                                                 ],
1121                                         ];
1122                                 }
1123                         }
1124
1125                         // Avoid PHP 7.1 warning of passing $this by reference
1126                         $skinTemplate = $this;
1127                         Hooks::runWithoutAbort(
1128                                 'SkinTemplateNavigation',
1129                                 [ &$skinTemplate, &$content_navigation ]
1130                         );
1131
1132                         if ( $userCanRead && !$wgDisableLangConversion ) {
1133                                 $pageLang = $title->getPageLanguage();
1134                                 // Checks that language conversion is enabled and variants exist
1135                                 // And if it is not in the special namespace
1136                                 if ( $pageLang->hasVariants() ) {
1137                                         // Gets list of language variants
1138                                         $variants = $pageLang->getVariants();
1139                                         // Gets preferred variant (note that user preference is
1140                                         // only possible for wiki content language variant)
1141                                         $preferred = $pageLang->getPreferredVariant();
1142                                         if ( Action::getActionName( $this ) === 'view' ) {
1143                                                 $params = $request->getQueryValues();
1144                                                 unset( $params['title'] );
1145                                         } else {
1146                                                 $params = [];
1147                                         }
1148                                         // Loops over each variant
1149                                         foreach ( $variants as $code ) {
1150                                                 // Gets variant name from language code
1151                                                 $varname = $pageLang->getVariantname( $code );
1152                                                 // Appends variant link
1153                                                 $content_navigation['variants'][] = [
1154                                                         'class' => ( $code == $preferred ) ? 'selected' : false,
1155                                                         'text' => $varname,
1156                                                         'href' => $title->getLocalURL( [ 'variant' => $code ] + $params ),
1157                                                         'lang' => LanguageCode::bcp47( $code ),
1158                                                         'hreflang' => LanguageCode::bcp47( $code ),
1159                                                 ];
1160                                         }
1161                                 }
1162                         }
1163                 } else {
1164                         // If it's not content, it's got to be a special page
1165                         $content_navigation['namespaces']['special'] = [
1166                                 'class' => 'selected',
1167                                 'text' => $this->msg( 'nstab-special' )->text(),
1168                                 'href' => $request->getRequestURL(), // @see: T4457, T4510
1169                                 'context' => 'subject'
1170                         ];
1171
1172                         // Avoid PHP 7.1 warning of passing $this by reference
1173                         $skinTemplate = $this;
1174                         Hooks::runWithoutAbort( 'SkinTemplateNavigation::SpecialPage',
1175                                 [ &$skinTemplate, &$content_navigation ] );
1176                 }
1177
1178                 // Avoid PHP 7.1 warning of passing $this by reference
1179                 $skinTemplate = $this;
1180                 // Equiv to SkinTemplateContentActions
1181                 Hooks::runWithoutAbort( 'SkinTemplateNavigation::Universal',
1182                         [ &$skinTemplate, &$content_navigation ] );
1183
1184                 // Setup xml ids and tooltip info
1185                 foreach ( $content_navigation as $section => &$links ) {
1186                         foreach ( $links as $key => &$link ) {
1187                                 $xmlID = $key;
1188                                 if ( isset( $link['context'] ) && $link['context'] == 'subject' ) {
1189                                         $xmlID = 'ca-nstab-' . $xmlID;
1190                                 } elseif ( isset( $link['context'] ) && $link['context'] == 'talk' ) {
1191                                         $xmlID = 'ca-talk';
1192                                         $link['rel'] = 'discussion';
1193                                 } elseif ( $section == 'variants' ) {
1194                                         $xmlID = 'ca-varlang-' . $xmlID;
1195                                 } else {
1196                                         $xmlID = 'ca-' . $xmlID;
1197                                 }
1198                                 $link['id'] = $xmlID;
1199                         }
1200                 }
1201
1202                 # We don't want to give the watch tab an accesskey if the
1203                 # page is being edited, because that conflicts with the
1204                 # accesskey on the watch checkbox.  We also don't want to
1205                 # give the edit tab an accesskey, because that's fairly
1206                 # superfluous and conflicts with an accesskey (Ctrl-E) often
1207                 # used for editing in Safari.
1208                 if ( in_array( $action, [ 'edit', 'submit' ] ) ) {
1209                         if ( isset( $content_navigation['views']['edit'] ) ) {
1210                                 $content_navigation['views']['edit']['tooltiponly'] = true;
1211                         }
1212                         if ( isset( $content_navigation['actions']['watch'] ) ) {
1213                                 $content_navigation['actions']['watch']['tooltiponly'] = true;
1214                         }
1215                         if ( isset( $content_navigation['actions']['unwatch'] ) ) {
1216                                 $content_navigation['actions']['unwatch']['tooltiponly'] = true;
1217                         }
1218                 }
1219
1220                 return $content_navigation;
1221         }
1222
1223         /**
1224          * an array of edit links by default used for the tabs
1225          * @param array $content_navigation
1226          * @return array
1227          */
1228         private function buildContentActionUrls( $content_navigation ) {
1229                 // content_actions has been replaced with content_navigation for backwards
1230                 // compatibility and also for skins that just want simple tabs content_actions
1231                 // is now built by flattening the content_navigation arrays into one
1232
1233                 $content_actions = [];
1234
1235                 foreach ( $content_navigation as $links ) {
1236                         foreach ( $links as $key => $value ) {
1237                                 if ( isset( $value['redundant'] ) && $value['redundant'] ) {
1238                                         // Redundant tabs are dropped from content_actions
1239                                         continue;
1240                                 }
1241
1242                                 // content_actions used to have ids built using the "ca-$key" pattern
1243                                 // so the xmlID based id is much closer to the actual $key that we want
1244                                 // for that reason we'll just strip out the ca- if present and use
1245                                 // the latter potion of the "id" as the $key
1246                                 if ( isset( $value['id'] ) && substr( $value['id'], 0, 3 ) == 'ca-' ) {
1247                                         $key = substr( $value['id'], 3 );
1248                                 }
1249
1250                                 if ( isset( $content_actions[$key] ) ) {
1251                                         wfDebug( __METHOD__ . ": Found a duplicate key for $key while flattening " .
1252                                                 "content_navigation into content_actions.\n" );
1253                                         continue;
1254                                 }
1255
1256                                 $content_actions[$key] = $value;
1257                         }
1258                 }
1259
1260                 return $content_actions;
1261         }
1262
1263         /**
1264          * build array of common navigation links
1265          * @return array
1266          */
1267         protected function buildNavUrls() {
1268                 global $wgUploadNavigationUrl;
1269
1270                 $out = $this->getOutput();
1271                 $request = $this->getRequest();
1272
1273                 $nav_urls = [];
1274                 $nav_urls['mainpage'] = [ 'href' => self::makeMainPageUrl() ];
1275                 if ( $wgUploadNavigationUrl ) {
1276                         $nav_urls['upload'] = [ 'href' => $wgUploadNavigationUrl ];
1277                 } elseif ( UploadBase::isEnabled() && UploadBase::isAllowed( $this->getUser() ) === true ) {
1278                         $nav_urls['upload'] = [ 'href' => self::makeSpecialUrl( 'Upload' ) ];
1279                 } else {
1280                         $nav_urls['upload'] = false;
1281                 }
1282                 $nav_urls['specialpages'] = [ 'href' => self::makeSpecialUrl( 'Specialpages' ) ];
1283
1284                 $nav_urls['print'] = false;
1285                 $nav_urls['permalink'] = false;
1286                 $nav_urls['info'] = false;
1287                 $nav_urls['whatlinkshere'] = false;
1288                 $nav_urls['recentchangeslinked'] = false;
1289                 $nav_urls['contributions'] = false;
1290                 $nav_urls['log'] = false;
1291                 $nav_urls['blockip'] = false;
1292                 $nav_urls['emailuser'] = false;
1293                 $nav_urls['userrights'] = false;
1294
1295                 // A print stylesheet is attached to all pages, but nobody ever
1296                 // figures that out. :)  Add a link...
1297                 if ( !$out->isPrintable() && ( $out->isArticle() || $this->getTitle()->isSpecialPage() ) ) {
1298                         $nav_urls['print'] = [
1299                                 'text' => $this->msg( 'printableversion' )->text(),
1300                                 'href' => $this->getTitle()->getLocalURL(
1301                                         $request->appendQueryValue( 'printable', 'yes' ) )
1302                         ];
1303                 }
1304
1305                 if ( $out->isArticle() ) {
1306                         // Also add a "permalink" while we're at it
1307                         $revid = $this->getRevisionId();
1308                         if ( $revid ) {
1309                                 $nav_urls['permalink'] = [
1310                                         'text' => $this->msg( 'permalink' )->text(),
1311                                         'href' => $this->getTitle()->getLocalURL( "oldid=$revid" )
1312                                 ];
1313                         }
1314
1315                         // Avoid PHP 7.1 warning of passing $this by reference
1316                         $skinTemplate = $this;
1317                         // Use the copy of revision ID in case this undocumented, shady hook tries to mess with internals
1318                         Hooks::run( 'SkinTemplateBuildNavUrlsNav_urlsAfterPermalink',
1319                                 [ &$skinTemplate, &$nav_urls, &$revid, &$revid ] );
1320                 }
1321
1322                 if ( $out->isArticleRelated() ) {
1323                         $nav_urls['whatlinkshere'] = [
1324                                 'href' => SpecialPage::getTitleFor( 'Whatlinkshere', $this->thispage )->getLocalURL()
1325                         ];
1326
1327                         $nav_urls['info'] = [
1328                                 'text' => $this->msg( 'pageinfo-toolboxlink' )->text(),
1329                                 'href' => $this->getTitle()->getLocalURL( "action=info" )
1330                         ];
1331
1332                         if ( $this->getTitle()->exists() || $this->getTitle()->inNamespace( NS_CATEGORY ) ) {
1333                                 $nav_urls['recentchangeslinked'] = [
1334                                         'href' => SpecialPage::getTitleFor( 'Recentchangeslinked', $this->thispage )->getLocalURL()
1335                                 ];
1336                         }
1337                 }
1338
1339                 $user = $this->getRelevantUser();
1340                 if ( $user ) {
1341                         $rootUser = $user->getName();
1342
1343                         $nav_urls['contributions'] = [
1344                                 'text' => $this->msg( 'contributions', $rootUser )->text(),
1345                                 'href' => self::makeSpecialUrlSubpage( 'Contributions', $rootUser ),
1346                                 'tooltip-params' => [ $rootUser ],
1347                         ];
1348
1349                         $nav_urls['log'] = [
1350                                 'href' => self::makeSpecialUrlSubpage( 'Log', $rootUser )
1351                         ];
1352
1353                         if ( $this->getUser()->isAllowed( 'block' ) ) {
1354                                 $nav_urls['blockip'] = [
1355                                         'text' => $this->msg( 'blockip', $rootUser )->text(),
1356                                         'href' => self::makeSpecialUrlSubpage( 'Block', $rootUser )
1357                                 ];
1358                         }
1359
1360                         if ( $this->showEmailUser( $user ) ) {
1361                                 $nav_urls['emailuser'] = [
1362                                         'text' => $this->msg( 'tool-link-emailuser', $rootUser )->text(),
1363                                         'href' => self::makeSpecialUrlSubpage( 'Emailuser', $rootUser ),
1364                                         'tooltip-params' => [ $rootUser ],
1365                                 ];
1366                         }
1367
1368                         if ( !$user->isAnon() ) {
1369                                 $sur = new UserrightsPage;
1370                                 $sur->setContext( $this->getContext() );
1371                                 $canChange = $sur->userCanChangeRights( $user );
1372                                 $nav_urls['userrights'] = [
1373                                         'text' => $this->msg(
1374                                                 $canChange ? 'tool-link-userrights' : 'tool-link-userrights-readonly',
1375                                                 $rootUser
1376                                         )->text(),
1377                                         'href' => self::makeSpecialUrlSubpage( 'Userrights', $rootUser )
1378                                 ];
1379                         }
1380                 }
1381
1382                 return $nav_urls;
1383         }
1384
1385         /**
1386          * Generate strings used for xml 'id' names
1387          * @return string
1388          */
1389         protected function getNameSpaceKey() {
1390                 return $this->getTitle()->getNamespaceKey();
1391         }
1392 }