X-Git-Url: http://git.heureux-cyclage.org/?a=blobdiff_plain;f=includes%2FWiki.php;h=0a4c0eaf8134e6f5ce9e2227ee0df1ef55ad054b;hb=e4ea0fa287e3d4324dca6108f6a852390920dbdd;hp=a095a363d3d77be6272f51eb71b134b670a451b3;hpb=6dc8136d12963d20ee9c72937dc269fbcfeb9b02;p=lhc%2Fweb%2Fwiklou.git diff --git a/includes/Wiki.php b/includes/Wiki.php index a095a363d3..0a4c0eaf81 100644 --- a/includes/Wiki.php +++ b/includes/Wiki.php @@ -1,129 +1,72 @@ params[$key] =& $value; - } - - /** - * Retrieves key/value pairs to circumvent global variables - * Note that keys are case-insensitive! - * - * @param $key String: key to get - * @param $default string default value, defaults to empty string - * @return $default Mixed: default value if if the key doesn't exist - */ - public function getVal( $key, $default = '' ) { - $key = strtolower( $key ); - if ( isset( $this->params[$key] ) ) { - return $this->params[$key]; - } - return $default; + public function request( WebRequest $x = null ){ + $old = $this->context->getRequest(); + $this->context->setRequest( $x ); + return $old; } - public function request( WebRequest &$x = null ){ - return wfSetVar( $this->context->request, $x ); + public function output( OutputPage $x = null ){ + $old = $this->context->getOutput(); + $this->context->setOutput( $x ); + return $old; } - public function output( OutputPage &$x = null ){ - return wfSetVar( $this->context->output, $x ); - } + public function __construct( IContextSource $context = null ) { + if ( !$context ) { + $context = RequestContext::getMain(); + } - public function __construct( RequestContext $context ){ $this->context = $context; $this->context->setTitle( $this->parseTitle() ); } /** - * Initialization of ... everything - * Performs the request too - * - * @param $article Article - */ - public function performRequestForTitle( &$article ) { - wfProfileIn( __METHOD__ ); - - if ( $this->context->request->getVal( 'printable' ) === 'yes' ) { - $this->context->output->setPrintable(); - } - - wfRunHooks( 'BeforeInitialize', array( - &$this->context->title, - &$article, - &$this->context->output, - &$this->context->user, - $this->context->request, - $this - ) ); - - // If the user is not logged in, the Namespace:title of the article must be in - // the Read array in order for the user to see it. (We have to check here to - // catch special pages etc. We check again in Article::view()) - if ( !is_null( $this->context->title ) && !$this->context->title->userCanRead() ) { - $this->context->output->loginToUse(); - $this->finalCleanup(); - $this->context->output->disable(); - wfProfileOut( __METHOD__ ); - return false; - } - - // Call handleSpecialCases() to deal with all special requests... - if ( !$this->handleSpecialCases() ) { - // ...otherwise treat it as an article view. The article - // may be a redirect to another article or URL. - $new_article = $this->initializeArticle(); - if ( is_object( $new_article ) ) { - $article = $new_article; - $this->performAction( $article ); - } elseif ( is_string( $new_article ) ) { - $this->context->output->redirect( $new_article ); - } else { - wfProfileOut( __METHOD__ ); - throw new MWException( "Shouldn't happen: MediaWiki::initializeArticle() returned neither an object nor a URL" ); - } - } - wfProfileOut( __METHOD__ ); - } - - /** - * Parse $request to get the Title object + * Parse the request to get the Title object * * @return Title object to be $wgTitle */ private function parseTitle() { global $wgContLang; - $curid = $this->context->request->getInt( 'curid' ); - $title = $this->context->request->getVal( 'title' ); + $request = $this->context->getRequest(); + $curid = $request->getInt( 'curid' ); + $title = $request->getVal( 'title' ); - if ( $this->context->request->getCheck( 'search' ) ) { + if ( $request->getCheck( 'search' ) ) { // Compatibility with old search URLs which didn't use Special:Search // Just check for presence here, so blank requests still // show the search page when using ugly URLs (bug 8054). @@ -135,17 +78,24 @@ class MediaWiki { $ret = Title::newMainPage(); } else { $ret = Title::newFromURL( $title ); - // check variant links so that interwiki links don't have to worry + // Alias NS_MEDIA page URLs to NS_FILE...we only use NS_MEDIA + // in wikitext links to tell Parser to make a direct file link + if ( !is_null( $ret ) && $ret->getNamespace() == NS_MEDIA ) { + $ret = Title::makeTitle( NS_FILE, $ret->getDBkey() ); + } + // Check variant links so that interwiki links don't have to worry // about the possible different language variants - if ( count( $wgContLang->getVariants() ) > 1 && !is_null( $ret ) && $ret->getArticleID() == 0 ){ + if ( count( $wgContLang->getVariants() ) > 1 + && !is_null( $ret ) && $ret->getArticleID() == 0 ) + { $wgContLang->findVariantLink( $title, $ret ); } } // For non-special titles, check for implicit titles - if ( is_null( $ret ) || $ret->getNamespace() != NS_SPECIAL ) { + if ( is_null( $ret ) || !$ret->isSpecialPage() ) { // We can have urls with just ?diff=,?oldid= or even just ?diff= - $oldid = $this->context->request->getInt( 'oldid' ); - $oldid = $oldid ? $oldid : $this->context->request->getInt( 'diff' ); + $oldid = $request->getInt( 'oldid' ); + $oldid = $oldid ? $oldid : $request->getInt( 'diff' ); // Allow oldid to override a changed or missing title if ( $oldid ) { $rev = Revision::newFromId( $oldid ); @@ -153,9 +103,10 @@ class MediaWiki { } } - if( $ret === null || ( $ret->getDBkey() == '' && $ret->getInterwiki() == '' ) ){ - $ret = new BadTitle; + if ( $ret === null || ( $ret->getDBkey() == '' && $ret->getInterwiki() == '' ) ) { + $ret = SpecialPage::getTitleFor( 'Badtitle' ); } + return $ret; } @@ -164,68 +115,117 @@ class MediaWiki { * @return Title */ public function getTitle(){ - if( $this->context->title === null ){ - $this->context->title = $this->parseTitle(); + if( $this->context->getTitle() === null ){ + $this->context->setTitle( $this->parseTitle() ); } - return $this->context->title; + return $this->context->getTitle(); } /** - * Initialize some special cases: + * Performs the request. * - bad titles + * - read restriction * - local interwiki redirects * - redirect loop * - special pages + * - normal pages * - * @return bool true if the request is already executed + * @return void */ - private function handleSpecialCases() { + private function performRequest() { + global $wgServer, $wgUsePathInfo, $wgTitle; + wfProfileIn( __METHOD__ ); + $request = $this->context->getRequest(); + $title = $this->context->getTitle(); + $output = $this->context->getOutput(); + $user = $this->context->getUser(); + + if ( $request->getVal( 'printable' ) === 'yes' ) { + $output->setPrintable(); + } + + wfRunHooks( 'BeforeInitialize', + array( &$title, null, &$output, &$user, $request, $this ) ); + // Invalid titles. Bug 21776: The interwikis must redirect even if the page name is empty. - if ( $this->context->title instanceof BadTitle ) { - // Die now before we mess up $wgArticle and the skin stops working + if ( is_null( $title ) || ( $title->getDBkey() == '' && $title->getInterwiki() == '' ) || + $title->isSpecial( 'Badtitle' ) ) + { + $this->context->setTitle( SpecialPage::getTitleFor( 'Badtitle' ) ); + wfProfileOut( __METHOD__ ); throw new ErrorPageError( 'badtitle', 'badtitletext' ); + } + + // Check user's permissions to read this page. + // We have to check here to catch special pages etc. + // We will check again in Article::view(). + $permErrors = $title->getUserPermissionsErrors( 'read', $user ); + if ( count( $permErrors ) ) { + // Bug 32276: allowing the skin to generate output with $wgTitle or + // $this->context->title set to the input title would allow anonymous users to + // determine whether a page exists, potentially leaking private data. In fact, the + // curid and oldid request parameters would allow page titles to be enumerated even + // when they are not guessable. So we reset the title to Special:Badtitle before the + // permissions error is displayed. + // + // The skin mostly uses $this->context->getTitle() these days, but some extensions + // still use $wgTitle. + + $badTitle = SpecialPage::getTitleFor( 'Badtitle' ); + $this->context->setTitle( $badTitle ); + $wgTitle = $badTitle; + + wfProfileOut( __METHOD__ ); + throw new PermissionsError( 'read', $permErrors ); + } + + $pageView = false; // was an article or special page viewed? // Interwiki redirects - } else if ( $this->context->title->getInterwiki() != '' ) { - $rdfrom = $this->context->request->getVal( 'rdfrom' ); + if ( $title->getInterwiki() != '' ) { + $rdfrom = $request->getVal( 'rdfrom' ); if ( $rdfrom ) { - $url = $this->context->title->getFullURL( 'rdfrom=' . urlencode( $rdfrom ) ); + $url = $title->getFullURL( 'rdfrom=' . urlencode( $rdfrom ) ); } else { - $query = $this->context->request->getValues(); + $query = $request->getValues(); unset( $query['title'] ); - $url = $this->context->title->getFullURL( $query ); + $url = $title->getFullURL( $query ); } // Check for a redirect loop - if ( !preg_match( '/^' . preg_quote( $this->getVal( 'Server' ), '/' ) . '/', $url ) && $this->context->title->isLocal() ) { + if ( !preg_match( '/^' . preg_quote( $wgServer, '/' ) . '/', $url ) + && $title->isLocal() ) + { // 301 so google et al report the target as the actual url. - $this->context->output->redirect( $url, 301 ); + $output->redirect( $url, 301 ); } else { - $this->context->title = new BadTitle; + $this->context->setTitle( SpecialPage::getTitleFor( 'Badtitle' ) ); wfProfileOut( __METHOD__ ); throw new ErrorPageError( 'badtitle', 'badtitletext' ); } // Redirect loops, no title in URL, $wgUsePathInfo URLs, and URLs with a variant - } else if ( $this->context->request->getVal( 'action', 'view' ) == 'view' && !$this->context->request->wasPosted() - && ( $this->context->request->getVal( 'title' ) === null || $this->context->title->getPrefixedDBKey() != $this->context->request->getVal( 'title' ) ) - && !count( array_diff( array_keys( $this->context->request->getValues() ), array( 'action', 'title' ) ) ) ) + } elseif ( $request->getVal( 'action', 'view' ) == 'view' && !$request->wasPosted() + && ( $request->getVal( 'title' ) === null || + $title->getPrefixedDBKey() != $request->getVal( 'title' ) ) + && !count( $request->getValueNames( array( 'action', 'title' ) ) ) + && wfRunHooks( 'TestCanonicalRedirect', array( $request, $title, $output ) ) ) { - if ( $this->context->title->getNamespace() == NS_SPECIAL ) { - list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $this->context->title->getDBkey() ); + if ( $title->isSpecialPage() ) { + list( $name, $subpage ) = SpecialPageFactory::resolveAlias( $title->getDBkey() ); if ( $name ) { - $this->context->title = SpecialPage::getTitleFor( $name, $subpage ); + $title = SpecialPage::getTitleFor( $name, $subpage ); } } - $targetUrl = $this->context->title->getFullURL(); + $targetUrl = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT ); // Redirect to canonical url, make it a 301 to allow caching - if ( $targetUrl == $this->context->request->getFullRequestURL() ) { + if ( $targetUrl == $request->getFullRequestURL() ) { $message = "Redirect loop detected!\n\n" . "This means the wiki got confused about what page was " . "requested; this sometimes happens when moving a wiki " . "to a new server or changing the server configuration.\n\n"; - if ( $this->getVal( 'UsePathInfo' ) ) { + if ( $wgUsePathInfo ) { $message .= "The wiki is trying to interpret the page " . "title from the URL path portion (PATH_INFO), which " . "sometimes fails depending on the web server. Try " . @@ -239,61 +239,61 @@ class MediaWiki { "\$wgArticlePath setting and/or toggle \$wgUsePathInfo " . "to true."; } - wfHttpError( 500, "Internal error", $message ); - wfProfileOut( __METHOD__ ); - return false; + throw new HttpError( 500, $message ); } else { - $this->context->output->setSquidMaxage( 1200 ); - $this->context->output->redirect( $targetUrl, '301' ); + $output->setSquidMaxage( 1200 ); + $output->redirect( $targetUrl, '301' ); } // Special pages - } else if ( NS_SPECIAL == $this->context->title->getNamespace() ) { - // actions that need to be made when we have a special pages - SpecialPage::executePath( $this->context->title, $this->context ); + } elseif ( NS_SPECIAL == $title->getNamespace() ) { + $pageView = true; + // Actions that need to be made when we have a special pages + SpecialPageFactory::executePath( $title, $this->context ); } else { - // No match to special cases - wfProfileOut( __METHOD__ ); - return false; + // ...otherwise treat it as an article view. The article + // may be a redirect to another article or URL. + $article = $this->initializeArticle(); + if ( is_object( $article ) ) { + $pageView = true; + /** + * $wgArticle is deprecated, do not use it. This will possibly be removed + * entirely in 1.20 or 1.21 + * @deprecated since 1.18 + */ + global $wgArticle; + $wgArticle = $article; + + $this->performAction( $article ); + } elseif ( is_string( $article ) ) { + $output->redirect( $article ); + } else { + wfProfileOut( __METHOD__ ); + throw new MWException( "Shouldn't happen: MediaWiki::initializeArticle() returned neither an object nor a URL" ); + } } - // Did match a special case + + if ( $pageView ) { + // Promote user to any groups they meet the criteria for + $user->addAutopromoteOnceGroups( 'onView' ); + } + wfProfileOut( __METHOD__ ); - return true; } /** * Create an Article object of the appropriate class for the given page. * + * @deprecated in 1.18; use Article::newFromTitle() instead * @param $title Title + * @param $context IContextSource * @return Article object */ - public static function articleFromTitle( &$title, RequestContext &$context ) { - if ( NS_MEDIA == $title->getNamespace() ) { - // FIXME: where should this go? - $title = Title::makeTitle( NS_FILE, $title->getDBkey() ); - } - - $article = null; - wfRunHooks( 'ArticleFromTitle', array( &$title, &$article ) ); - if ( $article ) { - return $article; - } - - switch( $title->getNamespace() ) { - case NS_FILE: - $page = new ImagePage( $title ); - break; - case NS_CATEGORY: - $page = new CategoryPage( $title ); - break; - default: - $page = new Article( $title ); - } - $page->setContext( $context ); - return $page; + public static function articleFromTitle( $title, IContextSource $context ) { + return Article::newFromTitle( $title, $context ); } /** - * Returns the action that will be executed, not necesserly the one passed + * Returns the action that will be executed, not necessarily the one passed * passed through the "action" parameter. Actions disabled in * $wgDisabledActions will be replaced by "nosuchaction" * @@ -302,7 +302,8 @@ class MediaWiki { public function getAction() { global $wgDisabledActions; - $action = $this->context->request->getVal( 'action', 'view' ); + $request = $this->context->getRequest(); + $action = $request->getVal( 'action', 'view' ); // Check for disabled actions if ( in_array( $action, $wgDisabledActions ) ) { @@ -312,10 +313,8 @@ class MediaWiki { // Workaround for bug #20966: inability of IE to provide an action dependent // on which submit button is clicked. if ( $action === 'historysubmit' ) { - if ( $this->context->request->getBool( 'revisiondelete' ) ) { + if ( $request->getBool( 'revisiondelete' ) ) { return 'revisiondelete'; - } elseif ( $this->context->request->getBool( 'revisionmove' ) ) { - return 'revisionmove'; } else { return 'view'; } @@ -327,29 +326,34 @@ class MediaWiki { } /** - * Initialize the object to be known as $wgArticle for "standard" actions + * Initialize the main Article object for "standard" actions (view, etc) * Create an Article object for the page, following redirects if needed. * * @return mixed an Article, or a string to redirect to another URL */ private function initializeArticle() { + global $wgDisableHardRedirects; + wfProfileIn( __METHOD__ ); - $action = $this->context->request->getVal( 'action', 'view' ); - $article = self::articleFromTitle( $this->context->title, $this->context ); + $request = $this->context->getRequest(); + $title = $this->context->getTitle(); + + $action = $request->getVal( 'action', 'view' ); + $article = Article::newFromTitle( $title, $this->context ); // NS_MEDIAWIKI has no redirects. // It is also used for CSS/JS, so performance matters here... - if ( $this->context->title->getNamespace() == NS_MEDIAWIKI ) { + if ( $title->getNamespace() == NS_MEDIAWIKI ) { wfProfileOut( __METHOD__ ); return $article; } // Namespace might change when using redirects // Check for redirects ... - $file = ( $this->context->title->getNamespace() == NS_FILE ) ? $article->getFile() : null; + $file = ( $title->getNamespace() == NS_FILE ) ? $article->getFile() : null; if ( ( $action == 'view' || $action == 'render' ) // ... for actions that show content - && !$this->context->request->getVal( 'oldid' ) && // ... and are not old revisions - !$this->context->request->getVal( 'diff' ) && // ... and not when showing diff - $this->context->request->getVal( 'redirect' ) != 'no' && // ... unless explicitly told not to + && !$request->getVal( 'oldid' ) && // ... and are not old revisions + !$request->getVal( 'diff' ) && // ... and not when showing diff + $request->getVal( 'redirect' ) != 'no' && // ... unless explicitly told not to // ... and the article is not a non-redirect image page with associated file !( is_object( $file ) && $file->exists() && !$file->getRedirected() ) ) { @@ -357,7 +361,7 @@ class MediaWiki { $ignoreRedirect = $target = false; wfRunHooks( 'InitializeArticleMaybeRedirect', - array( &$this->context->title, &$this->context->request, &$ignoreRedirect, &$target, &$article ) ); + array( &$title, &$request, &$ignoreRedirect, &$target, &$article ) ); // Follow redirects only for... redirects. // If $target is set, then a hook wanted to redirect. @@ -365,7 +369,7 @@ class MediaWiki { // Is the target already set by an extension? $target = $target ? $target : $article->followRedirect(); if ( is_string( $target ) ) { - if ( !$this->getVal( 'DisableHardRedirects' ) ) { + if ( !$wgDisableHardRedirects ) { // we'll need to redirect wfProfileOut( __METHOD__ ); return $target; @@ -373,18 +377,19 @@ class MediaWiki { } if ( is_object( $target ) ) { // Rewrite environment to redirected article - $rarticle = self::articleFromTitle( $target, $this->context ); + $rarticle = Article::newFromTitle( $target, $this->context ); $rarticle->loadPageData(); if ( $rarticle->exists() || ( is_object( $file ) && !$file->isLocal() ) ) { - $rarticle->setRedirectedFrom( $this->context->title ); + $rarticle->setRedirectedFrom( $title ); $article = $rarticle; - $this->context->title = $target; + $this->context->setTitle( $target ); } } } else { - $this->context->title = $article->getTitle(); + $this->context->setTitle( $article->getTitle() ); } } + wfProfileOut( __METHOD__ ); return $article; } @@ -399,11 +404,9 @@ class MediaWiki { $factory = wfGetLBFactory(); $factory->commitMasterChanges(); // Output everything! - $this->context->output->output(); + $this->context->getOutput()->output(); // Do any deferred jobs - wfDoUpdates( 'commit' ); - // Close the session so that jobs don't access the current session - session_write_close(); + DeferredUpdates::doUpdates( 'commit' ); $this->doJobs(); wfProfileOut( __METHOD__ ); } @@ -460,12 +463,18 @@ class MediaWiki { * * @param $article Article */ - private function performAction( &$article ) { + private function performAction( Page $article ) { + global $wgSquidMaxage; + wfProfileIn( __METHOD__ ); - if ( !wfRunHooks( 'MediaWikiPerformAction', array( - $this->context->output, $article, $this->context->title, - $this->context->user, $this->context->request, $this ) ) ) + $request = $this->context->getRequest(); + $output = $this->context->getOutput(); + $title = $this->context->getTitle(); + $user = $this->context->getUser(); + + if ( !wfRunHooks( 'MediaWikiPerformAction', + array( $output, $article, $title, $user, $request, $this ) ) ) { wfProfileOut( __METHOD__ ); return; @@ -473,8 +482,8 @@ class MediaWiki { $act = $this->getAction(); - $action = Action::factory( $this->getAction(), $article ); - if( $action instanceof Action ){ + $action = Action::factory( $act, $article ); + if ( $action instanceof Action ) { $action->show(); wfProfileOut( __METHOD__ ); return; @@ -482,45 +491,15 @@ class MediaWiki { switch( $act ) { case 'view': - $this->context->output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) ); + $output->setSquidMaxage( $wgSquidMaxage ); $article->view(); break; - case 'raw': // includes JS/CSS - wfProfileIn( __METHOD__ . '-raw' ); - $raw = new RawPage( $article ); - $raw->view(); - wfProfileOut( __METHOD__ . '-raw' ); - break; - case 'revert': - case 'rollback': + case 'delete': case 'protect': case 'unprotect': - case 'info': - case 'markpatrolled': case 'render': - case 'deletetrackback': - case 'purge': $article->$act(); break; - case 'print': - $article->view(); - break; - case 'dublincore': - if ( !$this->getVal( 'EnableDublinCoreRdf' ) ) { - wfHttpError( 403, 'Forbidden', wfMsg( 'nodublincore' ) ); - } else { - $rdf = new DublinCoreRdf( $article ); - $rdf->show(); - } - break; - case 'creativecommons': - if ( !$this->getVal( 'EnableCreativeCommonsRdf' ) ) { - wfHttpError( 403, 'Forbidden', wfMsg( 'nocreativecommons' ) ); - } else { - $rdf = new CreativeCommonsRdf( $article ); - $rdf->show(); - } - break; case 'submit': if ( session_id() == '' ) { // Send a cookie so anons get talk message notifications @@ -528,44 +507,118 @@ class MediaWiki { } // Continue... case 'edit': - if ( wfRunHooks( 'CustomEditor', array( $article, $this->context->user ) ) ) { - $internal = $this->context->request->getVal( 'internaledit' ); - $external = $this->context->request->getVal( 'externaledit' ); - $section = $this->context->request->getVal( 'section' ); - $oldid = $this->context->request->getVal( 'oldid' ); - if ( !$this->getVal( 'UseExternalEditor' ) || $act == 'submit' || $internal || - $section || $oldid || ( !$this->context->user->getOption( 'externaleditor' ) && !$external ) ) { + if ( wfRunHooks( 'CustomEditor', array( $article, $user ) ) ) { + if ( ExternalEdit::useExternalEngine( $this->context, 'edit' ) + && $act == 'edit' && !$request->getVal( 'section' ) + && !$request->getVal( 'oldid' ) ) + { + $extedit = new ExternalEdit( $this->context ); + $extedit->execute(); + } else { $editor = new EditPage( $article ); - $editor->submit(); - } elseif ( $this->getVal( 'UseExternalEditor' ) && ( $external || $this->context->user->getOption( 'externaleditor' ) ) ) { - $mode = $this->context->request->getVal( 'mode' ); - $extedit = new ExternalEdit( $article, $mode ); - $extedit->edit(); + $editor->edit(); } } break; - case 'history': - if ( $this->context->request->getFullRequestURL() == $this->context->title->getInternalURL( 'action=history' ) ) { - $this->context->output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) ); - } - $history = new HistoryPage( $article ); - $history->history(); - break; - case 'revisiondelete': - // For show/hide submission from history page - $special = SpecialPage::getPage( 'Revisiondelete' ); - $special->execute( '' ); - break; - case 'revisionmove': - // For revision move submission from history page - $special = SpecialPage::getPage( 'RevisionMove' ); - $special->execute( '' ); - break; default: if ( wfRunHooks( 'UnknownAction', array( $act, $article ) ) ) { - $this->context->output->showErrorPage( 'nosuchaction', 'nosuchactiontext' ); + $output->showErrorPage( 'nosuchaction', 'nosuchactiontext' ); + } + } + wfProfileOut( __METHOD__ ); + } + + /** + * Run the current MediaWiki instance + * index.php just calls this + */ + public function run() { + try { + $this->checkMaxLag(); + $this->main(); + $this->restInPeace(); + } catch ( Exception $e ) { + MWExceptionHandler::handle( $e ); + } + } + + /** + * Checks if the request should abort due to a lagged server, + * for given maxlag parameter. + */ + private function checkMaxLag() { + global $wgShowHostnames; + + wfProfileIn( __METHOD__ ); + $maxLag = $this->context->getRequest()->getVal( 'maxlag' ); + if ( !is_null( $maxLag ) ) { + list( $host, $lag ) = wfGetLB()->getMaxLag(); + if ( $lag > $maxLag ) { + $resp = $this->context->getRequest()->response(); + $resp->header( 'HTTP/1.1 503 Service Unavailable' ); + $resp->header( 'Retry-After: ' . max( intval( $maxLag ), 5 ) ); + $resp->header( 'X-Database-Lag: ' . intval( $lag ) ); + $resp->header( 'Content-Type: text/plain' ); + if( $wgShowHostnames ) { + echo "Waiting for $host: $lag seconds lagged\n"; + } else { + echo "Waiting for a database server: $lag seconds lagged\n"; + } + + wfProfileOut( __METHOD__ ); + + exit; + } + } + wfProfileOut( __METHOD__ ); + return true; + } + + private function main() { + global $wgUseFileCache, $wgTitle, $wgUseAjax; + + wfProfileIn( __METHOD__ ); + + # Set title from request parameters + $wgTitle = $this->getTitle(); + $action = $this->getAction(); + $user = $this->context->getUser(); + + # Send Ajax requests to the Ajax dispatcher. + if ( $wgUseAjax && $action == 'ajax' ) { + $dispatcher = new AjaxDispatcher(); + $dispatcher->performAction(); + wfProfileOut( __METHOD__ ); + return; + } + + if ( $wgUseFileCache && $wgTitle->getNamespace() >= 0 ) { + wfProfileIn( 'main-try-filecache' ); + if ( HTMLFileCache::useFileCache( $this->context ) ) { + /* Try low-level file cache hit */ + $cache = HTMLFileCache::newFromTitle( $wgTitle, $action ); + if ( $cache->isCacheGood( /* Assume up to date */ ) ) { + /* Check incoming headers to see if client has this cached */ + $timestamp = $cache->cacheTimestamp(); + if ( !$this->context->getOutput()->checkLastModified( $timestamp ) ) { + $cache->loadFromFileCache( $this->context ); + } + # Do any stats increment/watchlist stuff + $article = WikiPage::factory( $wgTitle ); + $article->doViewUpdates( $user ); + # Tell OutputPage that output is taken care of + $this->context->getOutput()->disable(); + wfProfileOut( 'main-try-filecache' ); + wfProfileOut( __METHOD__ ); + return; } + } + wfProfileOut( 'main-try-filecache' ); } + + $this->performRequest(); + $this->finalCleanup(); + wfProfileOut( __METHOD__ ); } }