<?php
/**
* MediaWiki is the to-be base class for this whole project
-*/
-
+ */
class MediaWiki {
+ var $GET; /* Stores the $_GET variables at time of creation, can be changed */
var $params = array();
+ /** Constructor. It just save the $_GET variable */
+ function __construct() {
+ $this->GET = $_GET;
+ }
+
/**
- * Stores parameters (to avoid using globals)
+ * 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;
}
/**
- * Retrieves parameters
+ * Retrieves key/value pairs to circumvent global variables
+ * Note that keys are case-insensitive!
*/
- function getVal( $key, $default = "" ) {
+ function getVal( $key, $default = '' ) {
$key = strtolower( $key );
if( isset( $this->params[$key] ) ) {
return $this->params[$key];
}
/**
- * Creates the article to be known as $wgArticle
+ * Initialization of ... everything
+ @return Article either the object to become $wgArticle, or NULL
*/
- function initializeArticle( &$title, &$request, $action ) {
- // Fix Media namespace
+ function initialize ( &$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;
+ }
+
+ function checkMaxLag( $maxLag ) {
+ global $wgLoadBalancer;
+ list( $host, $lag ) = $wgLoadBalancer->getMaxLag();
+ if ( $lag > $maxLag ) {
+ wfMaxlagError( $host, $lag, $maxLag );
+ return false;
+ } else {
+ return true;
+ }
+ }
+
+
+ /**
+ * 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::newMainPage();
+ } 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 );
+
+ }
+ if ( ( $oldid = $request->getInt( 'oldid' ) )
+ && ( is_null( $ret ) || $ret->getNamespace() != NS_SPECIAL ) ) {
+ // Allow oldid to override a changed or missing title.
+ $rev = Revision::newFromId( $oldid );
+ if( $rev ) {
+ $ret = $rev->getTitle();
+ }
+ }
+ return $ret ;
+ }
+
+ /**
+ * Checks for search query and anon-cannot-read case
+ */
+ function preliminaryChecks ( &$title, &$output, $request ) {
+
+ 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).
+
+ // Do this above the read whitelist check for security...
+ $title = SpecialPage::getTitleFor( '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 ) {
+ global $wgRequest;
+ wfProfileIn( 'MediaWiki::initializeSpecialCases' );
+
+ $action = $this->getVal('Action');
+ if( !$title or $title->getDBkey() == '' ) {
+ $title = SpecialPage::getTitleFor( '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 ) );
+ } else {
+ $url = $title->getFullURL();
+ }
+ /* Check for a redirect loop */
+ if ( !preg_match( '/^' . preg_quote( $this->getVal('Server'), '/' ) . '/', $url ) && $title->isLocal() ) {
+ $output->redirect( $url );
+ } else {
+ $title = SpecialPage::getTitleFor( 'Badtitle' );
+ throw new ErrorPageError( 'badtitle', 'badtitletext' );
+ }
+ } else if ( ( $action == 'view' ) && !$wgRequest->wasPosted() &&
+ (!isset( $this->GET['title'] ) || $title->getPrefixedDBKey() != $this->GET['title'] ) &&
+ !count( array_diff( array_keys( $this->GET ), array( 'action', 'title' ) ) ) )
+ {
+ $targetUrl = $title->getFullURL();
+ // Redirect to canonical url, make it a 301 to allow caching
+ global $wgUsePathInfo;
+ if( $targetUrl == $wgRequest->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( $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 " .
+ "setting \"\$wgUsePathInfo = false;\" in your " .
+ "LocalSettings.php, or check that \$wgArticlePath " .
+ "is correct.";
+ } else {
+ $message .= "Your web server was detected as possibly not " .
+ "supporting URL path components (PATH_INFO) correctly; " .
+ "check your LocalSettings.php for a customized " .
+ "\$wgArticlePath setting and/or toggle \$wgUsePathInfo " .
+ "to true.";
+ }
+ wfHttpError( 500, "Internal error", $message );
+ return false;
+ } else {
+ $output->setSquidMaxage( 1200 );
+ $output->redirect( $targetUrl, '301');
+ }
+ } else if ( NS_SPECIAL == $title->getNamespace() ) {
+ /* actions that need to be made when we have a special pages */
+ SpecialPage::executePath( $title );
+ } else {
+ /* No match to special cases */
+ wfProfileOut( 'MediaWiki::initializeSpecialCases' );
+ return false;
+ }
+ /* Did match a special case */
+ wfProfileOut( 'MediaWiki::initializeSpecialCases' );
+ return true;
+ }
+
+ /**
+ * Create an Article object of the appropriate class for the given page.
+ * @param Title $title
+ * @return Article
+ */
+ static 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:
+ $file = RepoGroup::singleton()->findFile( $title->getText() );
+ if( $file && $file->getRedirectedFrom() ) {
+ return new Article( $title );
+ } else {
+ return new ImagePage( $title );
+ }
+ case NS_CATEGORY:
+ return new CategoryPage( $title );
+ default:
+ return new Article( $title );
+ }
+ }
+
+ /**
+ * 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
- $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;
+ if( ( $action == 'view' || $action == 'render' ) && !$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;
+ }
+ }
+ 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;
+ }
+ }
+ 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;
- // 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 ) ) {
- $article->mTitle = $rTitle;
- $article->mRedirectedFrom = $b4;
+ if ( $wgJobRunRate <= 0 || wfReadOnly() ) {
+ return;
+ }
+ if ( $wgJobRunRate < 1 ) {
+ $max = mt_getrandmax();
+ if ( mt_rand( 0, $max ) > $max * $wgJobRunRate ) {
+ return;
}
- } elseif( $ns == NS_CATEGORY ) {
- unset($article);
- require_once( 'includes/CategoryPage.php' );
- $article = new CategoryPage( $title );
+ $n = 1;
+ } else {
+ $n = intval( $wgJobRunRate );
}
- return $article;
+
+ 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" );
}
/**
- * Performs any of a wide range of passed actions
+ * Perform one of the "standard" actions
*/
- function performAction( $action, &$output, &$article, &$title, &$user, &$request ) {
+ function performAction( &$output, &$article, &$title, &$user, &$request ) {
+
+ wfProfileIn( 'MediaWiki::performAction' );
+
+ if ( !wfRunHooks('MediaWikiPerformAction', array($output, $article, $title, $user, $request)) ) {
+ wfProfileOut( 'MediaWiki::performAction' );
+ return;
+ }
+
+ $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') );
+ $output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
$article->view();
break;
case 'watch':
case 'unprotect':
case 'info':
case 'markpatrolled':
- case 'validate':
case 'render':
case 'deletetrackback':
case 'purge':
$article->view();
break;
case 'dublincore':
- if( !$this->getVal('EnableDublinCoreRdf') ) {
+ if( !$this->getVal( 'EnableDublinCoreRdf' ) ) {
wfHttpError( 403, 'Forbidden', wfMsg( 'nodublincore' ) );
} else {
require_once( 'includes/Metadata.php' );
}
break;
case 'creativecommons':
- if( !$this->getVal('EnableCreativeCommonsRdf') ) {
- wfHttpError( 403, 'Forbidden', wfMsg('nocreativecommons') );
+ if( !$this->getVal( 'EnableCreativeCommonsRdf' ) ) {
+ wfHttpError( 403, 'Forbidden', wfMsg( 'nocreativecommons' ) );
} else {
require_once( 'includes/Metadata.php' );
wfCreativeCommonsRdf( $article );
showCreditsPage( $article );
break;
case 'submit':
- if( !$this->getVal('CommandLineMode') && !$request->checkSessionCookie() ) {
- # Send a cookie so anons get talk message notifications
- User::SetupSession();
+ if( session_id() == '' ) {
+ /* Send a cookie so anons get talk message notifications */
+ wfSetupSession();
}
- # Continue...
+ /* Continue... */
case 'edit':
- $internal = $request->getVal( 'internaledit' );
- $external = $request->getVal( 'externaledit' );
- $section = $request->getVal( 'section' );
- $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( 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 ||
+ $section || $oldid || ( !$user->getOption( 'externaleditor' ) && !$external ) ) {
+ $editor = new EditPage( $article );
+ $editor->submit();
+ } elseif( $this->getVal( 'UseExternalEditor' ) && ( $external || $user->getOption( 'externaleditor' ) ) ) {
+ $mode = $request->getVal( 'mode' );
+ $extedit = new ExternalEdit( $article, $mode );
+ $extedit->edit();
+ }
}
break;
case 'history':
- if($_SERVER['REQUEST_URI'] == $title->getInternalURL('action=history')) {
- $output->setSquidMaxage( $this->getVal('SquidMaxage') );
+ global $wgRequest;
+ if( $wgRequest->getFullRequestURL() == $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' );
+ if( wfRunHooks( 'UnknownAction', array( $action, $article ) ) ) {
+ $output->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
}
}
+ wfProfileOut( 'MediaWiki::performAction' );
+
}
-}; # End of class MediaWiki
+}; /* End of class MediaWiki */
-?>
dépôts / lhc / web / wiklou.git / blobdiff