class MediaWiki {
/**
- * Array of options which may or may not be used
- * FIXME: this seems currently to be a messy halfway-house between globals
- * and a config object. Pick one and run with it
- * @var array
+ * TODO: fold $output, etc, into this
+ * @var RequestContext
*/
- private $params = array();
+ private $context;
- /**
- * Stores key/value pairs to circumvent global variables
- * Note that keys are case-insensitive!
- *
- * @param $key String: key to store
- * @param $value Mixed: value to put for the key
- */
- public function setVal( $key, &$value ) {
- $key = strtolower( $key );
- $this->params[$key] =& $value;
+ public function request( WebRequest $x = null ){
+ $this->context->setRequest( $x );
+ return $this->context->getRequest();
}
- /**
- * 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 output( OutputPage $x = null ){
+ $this->context->setOutput( $x );
+ return $this->context->getOutput();
}
- /**
- * Initialization of ... everything
- * Performs the request too
- *
- * @param $title Title ($wgTitle)
- * @param $article Article
- * @param $output OutputPage
- * @param $user User
- * @param $request WebRequest
- */
- public function performRequestForTitle( &$title, &$article, &$output, &$user, $request ) {
- wfProfileIn( __METHOD__ );
-
- $output->setTitle( $title );
- if ( $request->getVal( 'printable' ) === 'yes' ) {
- $output->setPrintable();
- }
-
- wfRunHooks( 'BeforeInitialize', array( &$title, &$article, &$output, &$user, $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( $title ) && !$title->userCanRead() ) {
- $output->loginToUse();
- $this->finalCleanup( $output );
- $output->disable();
- wfProfileOut( __METHOD__ );
- return false;
- }
-
- // Call handleSpecialCases() to deal with all special requests...
- if ( !$this->handleSpecialCases( $title, $output, $request ) ) {
- // ...otherwise treat it as an article view. The article
- // may be a redirect to another article or URL.
- $new_article = $this->initializeArticle( $title, $output, $request );
- if ( is_object( $new_article ) ) {
- $article = $new_article;
- $this->performAction( $output, $article, $title, $user, $request );
- } elseif ( is_string( $new_article ) ) {
- $output->redirect( $new_article );
- } else {
- wfProfileOut( __METHOD__ );
- throw new MWException( "Shouldn't happen: MediaWiki::initializeArticle() returned neither an object nor a URL" );
- }
+ public function __construct( RequestContext $context = null ) {
+ if ( !$context ) {
+ $context = RequestContext::getMain();
}
- wfProfileOut( __METHOD__ );
+
+ $this->context = $context;
+ $this->context->setTitle( $this->parseTitle() );
}
/**
- * Checks some initial queries
- * FIXME: rename to parseTitle() ?
+ * Parse $request to get the Title object
*
- * @param $request WebRequest
* @return Title object to be $wgTitle
*/
- /* private */ function checkInitialQueries( WebRequest $request ) {
+ private function parseTitle() {
global $wgContLang;
+ $request = $this->context->getRequest();
$curid = $request->getInt( 'curid' );
$title = $request->getVal( 'title' );
} elseif ( $curid ) {
// URLs like this are generated by RC, because rc_title isn't always accurate
$ret = Title::newFromID( $curid );
- } elseif ( $title == '' && $this->getAction( $request ) != 'delete' ) {
+ } elseif ( $title == '' && $this->getAction() != 'delete' ) {
$ret = Title::newMainPage();
} else {
$ret = Title::newFromURL( $title );
// 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 ) {
$ret = $rev ? $rev->getTitle() : $ret;
}
}
+
+ if( $ret === null || ( $ret->getDBkey() == '' && $ret->getInterwiki() == '' ) ){
+ $ret = new BadTitle;
+ }
return $ret;
}
/**
- * Initialize some special cases:
+ * Get the Title object that we'll be acting on, as specified in the WebRequest
+ * @return Title
+ */
+ public function getTitle(){
+ if( $this->context->getTitle() === null ){
+ $this->context->setTitle( $this->parseTitle() );
+ }
+ return $this->context->getTitle();
+ }
+
+ /**
+ * Performs the request.
* - bad titles
+ * - read restriction
* - local interwiki redirects
* - redirect loop
* - special pages
+ * - normal pages
*
- * @param $title Title
- * @param $output OutputPage
- * @param $request WebRequest
- * @return bool true if the request is already executed
+ * @return Article object
*/
- private function handleSpecialCases( &$title, &$output, $request ) {
+ public function performRequest() {
+ global $wgServer, $wgUsePathInfo;
+
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 ( is_null( $title ) || ( ( $title->getDBkey() == '' ) && ( $title->getInterwiki() == '' ) ) ) {
- $title = SpecialPage::getTitleFor( 'Badtitle' );
- $output->setTitle( $title ); // bug 21456
- // Die now before we mess up $wgArticle and the skin stops working
+ if ( $title instanceof BadTitle ) {
throw new ErrorPageError( 'badtitle', 'badtitletext' );
-
+ // If the user is not logged in, the Namespace:title of the article must be in
+ // the Read array in order for the user to see it. (We have to check here to
+ // catch special pages etc. We check again in Article::view())
+ } elseif ( !$title->userCanRead() ) {
+ $output->loginToUse();
// Interwiki redirects
- } else if ( $title->getInterwiki() != '' ) {
+ } elseif ( $title->getInterwiki() != '' ) {
$rdfrom = $request->getVal( 'rdfrom' );
if ( $rdfrom ) {
$url = $title->getFullURL( 'rdfrom=' . urlencode( $rdfrom ) );
unset( $query['title'] );
$url = $title->getFullURL( $query );
}
- /* Check for a redirect loop */
- if ( !preg_match( '/^' . preg_quote( $this->getVal( 'Server' ), '/' ) . '/', $url ) && $title->isLocal() ) {
+ // Check for a redirect loop
+ if ( !preg_match( '/^' . preg_quote( $wgServer, '/' ) . '/', $url ) && $title->isLocal() ) {
// 301 so google et al report the target as the actual url.
$output->redirect( $url, 301 );
} else {
- $title = SpecialPage::getTitleFor( 'Badtitle' );
- $output->setTitle( $title ); // bug 21456
+ $this->context->setTitle( new BadTitle );
wfProfileOut( __METHOD__ );
throw new ErrorPageError( 'badtitle', 'badtitletext' );
}
// Redirect loops, no title in URL, $wgUsePathInfo URLs, and URLs with a variant
- } else if ( $request->getVal( 'action', 'view' ) == 'view' && !$request->wasPosted()
+ } elseif ( $request->getVal( 'action', 'view' ) == 'view' && !$request->wasPosted()
&& ( $request->getVal( 'title' ) === null || $title->getPrefixedDBKey() != $request->getVal( 'title' ) )
&& !count( array_diff( array_keys( $request->getValues() ), array( 'action', 'title' ) ) ) )
{
if ( $title->getNamespace() == NS_SPECIAL ) {
- list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $title->getDBkey() );
+ list( $name, $subpage ) = SpecialPageFactory::resolveAlias( $title->getDBkey() );
if ( $name ) {
$title = SpecialPage::getTitleFor( $name, $subpage );
}
"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 " .
"to true.";
}
wfHttpError( 500, "Internal error", $message );
- wfProfileOut( __METHOD__ );
- return false;
} else {
$output->setSquidMaxage( 1200 );
$output->redirect( $targetUrl, '301' );
}
// Special pages
- } else if ( NS_SPECIAL == $title->getNamespace() ) {
- /* actions that need to be made when we have a special pages */
- SpecialPage::executePath( $title );
+ } elseif ( NS_SPECIAL == $title->getNamespace() ) {
+ // 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 ) ) {
+ /**
+ * $wgArticle is deprecated, do not use it. This will possibly be removed
+ * entirely in 1.20 or 1.21
+ * @deprecated since 1.19
+ */
+ global $wgArticle;
+ $wgArticle = $article;
+
+ $this->performAction( $article );
+ wfProfileOut( __METHOD__ );
+ return $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 */
wfProfileOut( __METHOD__ );
- return true;
}
/**
* Create an Article object of the appropriate class for the given page.
*
+ * @deprecated in 1.19; use Article::newFromTitle() instead
* @param $title Title
+ * @param $context RequestContext
* @return Article object
*/
- public static function articleFromTitle( &$title ) {
- 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:
- return new ImagePage( $title );
- case NS_CATEGORY:
- return new CategoryPage( $title );
- default:
- return new Article( $title );
- }
+ public static function articleFromTitle( $title, RequestContext $context ) {
+ return Article::newFromTitle( $title, $context );
}
/**
* passed through the "action" parameter. Actions disabled in
* $wgDisabledActions will be replaced by "nosuchaction"
*
- * @param $request WebRequest
* @return String: action
*/
- public function getAction( WebRequest $request ) {
+ public function getAction() {
global $wgDisabledActions;
+ $request = $this->context->getRequest();
$action = $request->getVal( 'action', 'view' );
// Check for disabled actions
if ( $action === 'historysubmit' ) {
if ( $request->getBool( 'revisiondelete' ) ) {
return 'revisiondelete';
- } elseif ( $request->getBool( 'revisionmove' ) ) {
- return 'revisionmove';
} else {
return 'view';
}
}
/**
- * 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.
*
- * @param $title Title ($wgTitle)
- * @param $output OutputPage ($wgOut)
- * @param $request WebRequest ($wgRequest)
* @return mixed an Article, or a string to redirect to another URL
*/
- private function initializeArticle( &$title, &$output, $request ) {
+ private function initializeArticle() {
+ global $wgDisableHardRedirects;
+
wfProfileIn( __METHOD__ );
+ $request = $this->context->getRequest();
+ $title = $this->context->getTitle();
+
$action = $request->getVal( 'action', 'view' );
- $article = self::articleFromTitle( $title );
+ $article = Article::newFromTitle( $title, $this->context );
// NS_MEDIAWIKI has no redirects.
// It is also used for CSS/JS, so performance matters here...
if ( $title->getNamespace() == NS_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;
}
if ( is_object( $target ) ) {
// Rewrite environment to redirected article
- $rarticle = self::articleFromTitle( $target );
+ $rarticle = Article::newFromTitle( $target, $this->context );
$rarticle->loadPageData();
if ( $rarticle->exists() || ( is_object( $file ) && !$file->isLocal() ) ) {
$rarticle->setRedirectedFrom( $title );
$article = $rarticle;
- $title = $target;
- $output->setTitle( $title );
+ $this->context->setTitle( $target );
}
}
} else {
- $title = $article->getTitle();
+ $this->context->setTitle( $article->getTitle() );
}
}
wfProfileOut( __METHOD__ );
/**
* Cleaning up request by doing deferred updates, DB transaction, and the output
- *
- * @param $output OutputPage
*/
- public function finalCleanup( &$output ) {
+ public function finalCleanup() {
wfProfileIn( __METHOD__ );
// Now commit any transactions, so that unreported errors after
// output() don't roll back the whole DB transaction
$factory = wfGetLBFactory();
$factory->commitMasterChanges();
// Output everything!
- $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();
$this->doJobs();
wfProfileOut( __METHOD__ );
}
/**
* Perform one of the "standard" actions
*
- * @param $output OutputPage
* @param $article Article
- * @param $title Title
- * @param $user User
- * @param $request WebRequest
*/
- private function performAction( &$output, &$article, &$title, &$user, &$request ) {
+ private function performAction( $article ) {
+ global $wgSquidMaxage, $wgUseExternalEditor;
+
wfProfileIn( __METHOD__ );
- if ( !wfRunHooks( 'MediaWikiPerformAction', array( $output, $article, $title, $user, $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;
}
- $action = $this->getAction( $request );
+ $act = $this->getAction();
+
+ $action = Action::factory( $act, $article );
+ if( $action instanceof Action ){
+ $action->show();
+ wfProfileOut( __METHOD__ );
+ return;
+ }
- switch( $action ) {
+ switch( $act ) {
case 'view':
- $output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
+ $output->setSquidMaxage( $wgSquidMaxage );
$article->view();
break;
case 'raw': // includes JS/CSS
$raw->view();
wfProfileOut( __METHOD__ . '-raw' );
break;
- case 'watch':
- case 'unwatch':
case 'delete':
case 'revert':
case 'rollback':
case 'protect':
case 'unprotect':
- case 'info':
- case 'markpatrolled':
case 'render':
- case 'deletetrackback':
- case 'purge':
- $article->$action();
- 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 'credits':
- Credits::showPage( $article );
+ $article->$act();
break;
case 'submit':
if ( session_id() == '' ) {
- /* Send a cookie so anons get talk message notifications */
+ // Send a cookie so anons get talk message notifications
wfSetupSession();
}
- /* Continue... */
+ // Continue...
case 'edit':
if ( wfRunHooks( 'CustomEditor', array( $article, $user ) ) ) {
$internal = $request->getVal( 'internaledit' );
$external = $request->getVal( 'externaledit' );
$section = $request->getVal( 'section' );
$oldid = $request->getVal( 'oldid' );
- if ( !$this->getVal( 'UseExternalEditor' ) || $action == 'submit' || $internal ||
+ if ( !$wgUseExternalEditor || $act == 'submit' || $internal ||
$section || $oldid || ( !$user->getOption( 'externaleditor' ) && !$external ) ) {
$editor = new EditPage( $article );
$editor->submit();
- } elseif ( $this->getVal( 'UseExternalEditor' ) && ( $external || $user->getOption( 'externaleditor' ) ) ) {
+ } elseif ( $wgUseExternalEditor && ( $external || $user->getOption( 'externaleditor' ) ) ) {
$mode = $request->getVal( 'mode' );
$extedit = new ExternalEdit( $article, $mode );
$extedit->edit();
break;
case 'history':
if ( $request->getFullRequestURL() == $title->getInternalURL( 'action=history' ) ) {
- $output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
+ $output->setSquidMaxage( $wgSquidMaxage );
}
$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( $action, $article ) ) ) {
+ if ( wfRunHooks( 'UnknownAction', array( $act, $article ) ) ) {
$output->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
}
}
wfProfileOut( __METHOD__ );
}
+
+ /**
+ * Run the current MediaWiki instance
+ * index.php just calls this
+ */
+ function run() {
+ try {
+ $this->checkMaxLag( true );
+ $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.
+ *
+ * @param boolean $abort True if this class should abort the
+ * script execution. False to return the result as a boolean.
+ * @return boolean True if we passed the check, false if we surpass the maxlag
+ */
+ function checkMaxLag( $abort ) {
+ global $wgShowHostnames;
+
+ wfProfileIn( __METHOD__ );
+ $maxLag = $this->context->getRequest()->getVal( 'maxlag' );
+ if ( !is_null( $maxLag ) ) {
+ $lb = wfGetLB(); // foo()->bar() is not supported in PHP4
+ list( $host, $lag ) = $lb->getMaxLag();
+ if ( $lag > $maxLag ) {
+ if ( $abort ) {
+ header( 'HTTP/1.1 503 Service Unavailable' );
+ header( 'Retry-After: ' . max( intval( $maxLag ), 5 ) );
+ header( 'X-Database-Lag: ' . intval( $lag ) );
+ header( 'Content-Type: text/plain' );
+ if( $wgShowHostnames ) {
+ echo "Waiting for $host: $lag seconds lagged\n";
+ } else {
+ echo "Waiting for a database server: $lag seconds lagged\n";
+ }
+ }
+
+ wfProfileOut( __METHOD__ );
+
+ if ( !$abort )
+ return false;
+ exit;
+ }
+ }
+ wfProfileOut( __METHOD__ );
+ return true;
+ }
+
+ function main() {
+ global $wgUseFileCache, $wgTitle, $wgUseAjax;
+
+ wfProfileIn( __METHOD__ );
+
+ # Set title from request parameters
+ $wgTitle = $this->getTitle();
+ $action = $this->getAction();
+
+ # Send Ajax requests to the Ajax dispatcher.
+ if ( $wgUseAjax && $action == 'ajax' ) {
+ $dispatcher = new AjaxDispatcher();
+ $dispatcher->performAction();
+ wfProfileOut( __METHOD__ );
+ return;
+ }
+
+ if ( $wgUseFileCache && $wgTitle !== null ) {
+ wfProfileIn( 'main-try-filecache' );
+ // Raw pages should handle cache control on their own,
+ // even when using file cache. This reduces hits from clients.
+ if ( $action != 'raw' && HTMLFileCache::useFileCache() ) {
+ /* Try low-level file cache hit */
+ $cache = new HTMLFileCache( $wgTitle, $action );
+ if ( $cache->isFileCacheGood( /* Assume up to date */ ) ) {
+ /* Check incoming headers to see if client has this cached */
+ if ( !$this->context->getOutput()->checkLastModified( $cache->fileCacheTime() ) ) {
+ $cache->loadFromFileCache();
+ }
+ # Do any stats increment/watchlist stuff
+ $article = Article::newFromTitle( $wgTitle, $this->context );
+ $article->viewUpdates();
+ # 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__ );
+ }
}
dépôts / lhc / web / wiklou.git / blobdiff