$this->GET = $_GET;
}
+ /**
+ * Stores key/value pairs to circumvent global variables
+ * Note that keys are case-insensitive!
+ */
function setVal( $key, &$value ) {
- $this->param[strtolower( $key )] = $value;
+ $key = strtolower( $key );
+ $this->params[$key] =& $value;
}
- function getVal( $key, $default = "" ) {
+ /**
+ * Retrieves key/value pairs to circumvent global variables
+ * Note that keys are case-insensitive!
+ */
+ function getVal( $key, $default = '' ) {
$key = strtolower( $key );
if( isset( $this->params[$key] ) ) {
return $this->params[$key];
return $default;
}
+ /**
+ * Initialization of ... everything
+ @return Article either the object to become $wgArticle, or NULL
+ */
+ function initialize ( &$title, &$output, &$user, $request) {
+ wfProfileIn( 'MediaWiki::initialize' );
+ $this->preliminaryChecks ( $title, $output, $request ) ;
+ $article = NULL;
+ if ( !$this->initializeSpecialCases( $title, $output, $request ) ) {
+ $article = $this->initializeArticle( $title, $request );
+ if( is_object( $article ) ) {
+ $this->performAction( $output, $article, $title, $user, $request );
+ } elseif( is_string( $article ) ) {
+ $output->redirect( $article );
+ } else {
+ throw new MWException( "Shouldn't happen: MediaWiki::initializeArticle() returned neither an object nor a URL" );
+ }
+ }
+ wfProfileOut( 'MediaWiki::initialize' );
+ return $article;
+ }
+
+ /**
+ * Checks some initial queries
+ * Note that $title here is *not* a Title object, but a string!
+ */
+ function checkInitialQueries( $title,$action,&$output,$request, $lang) {
+ if ($request->getVal( 'printable' ) == 'yes') {
+ $output->setPrintable();
+ }
+
+ $ret = NULL ;
+
+
+ if ( '' == $title && 'delete' != $action ) {
+ $ret = Title::newFromText( wfMsgForContent( 'mainpage' ) );
+ } elseif ( $curid = $request->getInt( 'curid' ) ) {
+ # URLs like this are generated by RC, because rc_title isn't always accurate
+ $ret = Title::newFromID( $curid );
+ } else {
+ $ret = Title::newFromURL( $title );
+ /* check variant links so that interwiki links don't have to worry about
+ the possible different language variants
+ */
+ if( count($lang->getVariants()) > 1 && !is_null($ret) && $ret->getArticleID() == 0 )
+ $lang->findVariantLink( $title, $ret );
+
+ }
+ return $ret ;
+ }
+
+ /**
+ * Checks for search query and anon-cannot-read case
+ */
+ function preliminaryChecks ( &$title, &$output, $request ) {
+
+ # Debug statement for user levels
+ // print_r($wgUser);
+
+ $search = $request->getText( 'search' );
+ if( !is_null( $search ) && $search !== '' ) {
+ // Compatibility with old search URLs which didn't use Special:Search
+ // Do this above the read whitelist check for security...
+ $title = Title::makeTitle( NS_SPECIAL, 'Search' );
+ }
+ $this->setVal( 'Search', $search );
+
+ # 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();
+ $output->output();
+ exit;
+ }
+
+ }
+
/**
* Initialize the object to be known as $wgArticle for special cases
*/
- function initializeSpecialCases ( &$title , &$output , $request , $action , &$search ) {
+ function initializeSpecialCases ( &$title, &$output, $request ) {
+
wfProfileIn( 'MediaWiki::initializeSpecialCases' );
+
+ $search = $this->getVal('Search');
+ $action = $this->getVal('Action');
if( !$this->getVal('DisableInternalSearch') && !is_null( $search ) && $search !== '' ) {
require_once( 'includes/SpecialSearch.php' );
$title = Title::makeTitle( NS_SPECIAL, 'Search' );
wfSpecialSearch();
} else if( !$title or $title->getDBkey() == '' ) {
- $title = Title::newFromText( wfMsgForContent( 'badtitle' ) );
- $output->errorpage( 'badtitle', 'badtitletext' );
+ $title = Title::makeTitle( NS_SPECIAL, 'Badtitle' );
+ # Die now before we mess up $wgArticle and the skin stops working
+ throw new ErrorPageError( 'badtitle', 'badtitletext' );
} else if ( $title->getInterwiki() != '' ) {
if( $rdfrom = $request->getVal( 'rdfrom' ) ) {
$url = $title->getFullURL( 'rdfrom=' . urlencode( $rdfrom ) );
if ( !preg_match( '/^' . preg_quote( $this->getVal('Server'), '/' ) . '/', $url ) && $title->isLocal() ) {
$output->redirect( $url );
} else {
- $title = Title::newFromText( wfMsgForContent( 'badtitle' ) );
- $output->errorpage( 'badtitle', 'badtitletext' );
+ $title = Title::makeTitle( NS_SPECIAL, 'Badtitle' );
+ throw new ErrorPageError( 'badtitle', 'badtitletext' );
}
} else if ( ( $action == 'view' ) &&
(!isset( $this->GET['title'] ) || $title->getPrefixedDBKey() != $this->GET['title'] ) &&
}
/**
- * Initialize the object to be known as $wgArticle for "standard" actions
+ * Create an Article object of the appropriate class for the given page.
+ * @param Title $title
+ * @return Article
*/
- function initializeArticle( &$title, $request, $action ) {
-
- wfProfileIn( 'MediaWiki::initializeArticle' );
+ function articleFromTitle( $title ) {
+ $article = null;
+ wfRunHooks('ArticleFromTitle', array( &$title, &$article ) );
+ if ( $article ) {
+ return $article;
+ }
if( NS_MEDIA == $title->getNamespace() ) {
+ // FIXME: where should this go?
$title = Title::makeTitle( NS_IMAGE, $title->getDBkey() );
}
- $ns = $title->getNamespace();
+ switch( $title->getNamespace() ) {
+ case NS_IMAGE:
+ return new ImagePage( $title );
+ case NS_CATEGORY:
+ return new CategoryPage( $title );
+ default:
+ return new Article( $title );
+ }
+ }
- /* Namespace might change when using redirects */
- $article = new Article( $title );
- if( $action == 'view' && !$request->getVal( 'oldid' ) ) {
- $rTitle = Title::newFromRedirect( $article->fetchContent() );
- if( $rTitle ) {
- /* Reload from the page pointed to later */
- $article->mContentLoaded = false;
- $ns = $rTitle->getNamespace();
- $wasRedirected = true;
+ /**
+ * Initialize the object to be known as $wgArticle for "standard" actions
+ * Create an Article object for the page, following redirects if needed.
+ * @param Title $title
+ * @param Request $request
+ * @param string $action
+ * @return mixed an Article, or a string to redirect to another URL
+ */
+ function initializeArticle( $title, $request ) {
+ global $wgTitle;
+ wfProfileIn( 'MediaWiki::initializeArticle' );
+
+ $action = $this->getVal('Action');
+ $article = $this->articleFromTitle( $title );
+
+ // Namespace might change when using redirects
+ if( $action == 'view' && !$request->getVal( 'oldid' ) &&
+ $request->getVal( 'redirect' ) != 'no' ) {
+
+ $dbr =& wfGetDB(DB_SLAVE);
+ $article->loadPageData($article->pageDataFromTitle($dbr, $title));
+
+ /* Follow redirects only for... redirects */
+ if ($article->mIsRedirect) {
+ $target = $article->followRedirect();
+ if( is_string( $target ) ) {
+ global $wgDisableHardRedirects;
+ if( !$wgDisableHardRedirects ) {
+ // we'll need to redirect
+ return $target;
+ }
}
- }
-
- /* Categories and images are handled by a different class */
- if( $ns == NS_IMAGE ) {
- $b4 = $title->getPrefixedText();
- unset( $article );
- require_once( 'includes/ImagePage.php' );
- $article = new ImagePage( $title );
- if( isset( $wasRedirected ) && $request->getVal( 'redirect' ) != 'no' ) {
- $article->mTitle = $rTitle;
- $article->mRedirectedFrom = $b4;
+ if( is_object( $target ) ) {
+ /* Rewrite environment to redirected article */
+ $rarticle = $this->articleFromTitle($target);
+ $rarticle->loadPageData($rarticle->pageDataFromTitle($dbr,$target));
+ if ($rarticle->mTitle->mArticleID) {
+ $article = $rarticle;
+ $wgTitle = $target;
+ $article->setRedirectedFrom( $title );
+ } else {
+ $wgTitle = $title;
+ }
+ }
+ } else {
+ $wgTitle = $article->mTitle;
}
- } elseif( $ns == NS_CATEGORY ) {
- unset( $article );
- require_once( 'includes/CategoryPage.php' );
- $article = new CategoryPage( $title );
}
wfProfileOut( 'MediaWiki::initializeArticle' );
return $article;
}
+ /**
+ * Cleaning up by doing deferred updates, calling loadbalancer and doing the output
+ */
+ function finalCleanup ( &$deferredUpdates, &$loadBalancer, &$output ) {
+ wfProfileIn( 'MediaWiki::finalCleanup' );
+ $this->doUpdates( $deferredUpdates );
+ $this->doJobs();
+ $loadBalancer->saveMasterPos();
+ # Now commit any transactions, so that unreported errors after output() don't roll back the whole thing
+ $loadBalancer->commitAll();
+ $output->output();
+ wfProfileOut( 'MediaWiki::finalCleanup' );
+ }
+
+ /**
+ * Deferred updates aren't really deferred anymore. It's important to report errors to the
+ * user, and that means doing this before OutputPage::output(). Note that for page saves,
+ * the client will wait until the script exits anyway before following the redirect.
+ */
+ function doUpdates ( &$updates ) {
+ wfProfileIn( 'MediaWiki::doUpdates' );
+ $dbw =& wfGetDB( DB_MASTER );
+ foreach( $updates as $up ) {
+ $up->doUpdate();
+
+ # Commit after every update to prevent lock contention
+ if ( $dbw->trxLevel() ) {
+ $dbw->commit();
+ }
+ }
+ wfProfileOut( 'MediaWiki::doUpdates' );
+ }
+
+ /**
+ * Do a job from the job queue
+ */
+ function doJobs() {
+ global $wgJobRunRate;
+
+ if ( $wgJobRunRate <= 0 || wfReadOnly() ) {
+ return;
+ }
+ if ( $wgJobRunRate < 1 ) {
+ $max = mt_getrandmax();
+ if ( mt_rand( 0, $max ) > $max * $wgJobRunRate ) {
+ return;
+ }
+ $n = 1;
+ } else {
+ $n = intval( $wgJobRunRate );
+ }
+
+ while ( $n-- && false != ($job = Job::pop())) {
+ $output = $job->toString() . "\n";
+ $t = -wfTime();
+ $success = $job->run();
+ $t += wfTime();
+ $t = round( $t*1000 );
+ if ( !$success ) {
+ $output .= "Error: " . $job->getLastError() . ", Time: $t ms\n";
+ } else {
+ $output .= "Success, Time: $t ms\n";
+ }
+ wfDebugLog( 'jobqueue', $output );
+ }
+ }
+
+ /**
+ * Ends this task peacefully
+ */
+ function restInPeace ( &$loadBalancer ) {
+ wfLogProfilingData();
+ $loadBalancer->closeAll();
+ wfDebug( "Request ended normally\n" );
+ }
+
/**
* Perform one of the "standard" actions
*/
- function performAction( $action, &$output, &$article, &$title, &$user, &$request ) {
+ function performAction( &$output, &$article, &$title, &$user, &$request ) {
wfProfileIn( 'MediaWiki::performAction' );
+ $action = $this->getVal('Action');
+ if( in_array( $action, $this->getVal('DisabledActions',array()) ) ) {
+ /* No such action; this will switch to the default case */
+ $action = 'nosuchaction';
+ }
+
switch( $action ) {
case 'view':
$output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
case 'unprotect':
case 'info':
case 'markpatrolled':
- case 'validate':
case 'render':
case 'deletetrackback':
case 'purge':
$oldid = $request->getVal( 'oldid' );
if( !$this->getVal( 'UseExternalEditor' ) || $action=='submit' || $internal ||
$section || $oldid || ( !$user->getOption( 'externaleditor' ) && !$external ) ) {
- require_once( 'includes/EditPage.php' );
$editor = new EditPage( $article );
$editor->submit();
} elseif( $this->getVal( 'UseExternalEditor' ) && ( $external || $user->getOption( 'externaleditor' ) ) ) {
- require_once( 'includes/ExternalEdit.php' );
$mode = $request->getVal( 'mode' );
$extedit = new ExternalEdit( $article, $mode );
$extedit->edit();
if( $_SERVER['REQUEST_URI'] == $title->getInternalURL( 'action=history' ) ) {
$output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
}
- require_once( 'includes/PageHistory.php' );
$history = new PageHistory( $article );
$history->history();
break;
case 'raw':
- require_once( 'includes/RawPage.php' );
$raw = new RawPage( $article );
$raw->view();
break;
default:
if( wfRunHooks( 'UnknownAction', array( $action, $article ) ) ) {
- $output->errorpage( 'nosuchaction', 'nosuchactiontext' );
+ $output->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
}
+ }
wfProfileOut( 'MediaWiki::performAction' );
- }
+
}
}; /* End of class MediaWiki */
?>
-