+++ /dev/null
-<?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 key/value pairs to circumvent global variables
- * Note that keys are case-insensitive!
- */
- function setVal( $key, &$value ) {
- $key = strtolower( $key );
- $this->params[$key] =& $value;
- }
-
- /**
- * 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;
- }
-
- function checkMaxLag( $maxLag ) {
- global $wgLoadBalancer, $wgShowHostnames;
- list( $host, $lag ) = $wgLoadBalancer->getMaxLag();
- if ( $lag > $maxLag ) {
- 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";
- }
- 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() );
- }
-
- switch( $title->getNamespace() ) {
- case NS_IMAGE:
- 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
- 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;
- }
- }
- 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;
-
- 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();
- $loadBalancer->closeAll();
- wfDebug( "Request ended normally\n" );
- }
-
- /**
- * Perform one of the "standard" actions
- */
- function performAction( &$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' ) );
- $article->view();
- 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 {
- require_once( 'includes/Metadata.php' );
- wfDublinCoreRdf( $article );
- }
- break;
- case 'creativecommons':
- if( !$this->getVal( 'EnableCreativeCommonsRdf' ) ) {
- wfHttpError( 403, 'Forbidden', wfMsg( 'nocreativecommons' ) );
- } else {
- require_once( 'includes/Metadata.php' );
- wfCreativeCommonsRdf( $article );
- }
- break;
- case 'credits':
- require_once( 'includes/Credits.php' );
- showCreditsPage( $article );
- break;
- case 'submit':
- if( session_id() == '' ) {
- /* Send a cookie so anons get talk message notifications */
- wfSetupSession();
- }
- /* 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 ||
- $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':
- global $wgRequest;
- if( $wgRequest->getFullRequestURL() == $title->getInternalURL( 'action=history' ) ) {
- $output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
- }
- $history = new PageHistory( $article );
- $history->history();
- break;
- case 'raw':
- $raw = new RawPage( $article );
- $raw->view();
- break;
- default:
- if( wfRunHooks( 'UnknownAction', array( $action, $article ) ) ) {
- $output->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
- }
- }
- wfProfileOut( 'MediaWiki::performAction' );
-
- }
-
-}; /* End of class MediaWiki */
-
-
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff