MediaWiki 1.7.1 wiederhergestellt

1 files changed, 410 insertions, 0 deletions

diff --git a/includes/Wiki.php b/includes/Wiki.php
new file mode 100644
index 00000000..6f010003
--- /dev/null
+++ b/includes/Wiki.php
@@ -0,0 +1,410 @@
+<?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
+	 */
+	function MediaWiki () {
+		$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;
+	}
+	
+	/**
+	 * 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 ) {
+
+		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::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 ) );
+			} 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 = Title::makeTitle( NS_SPECIAL, 'Badtitle' );
+				throw new ErrorPageError( 'badtitle', 'badtitletext' );
+			}
+		} else if ( ( $action == 'view' ) &&
+			(!isset( $this->GET['title'] ) || $title->getPrefixedDBKey() != $this->GET['title'] ) &&
+			!count( array_diff( array_keys( $this->GET ), array( 'action', 'title' ) ) ) )
+		{
+			/* Redirect to canonical url, make it a 301 to allow caching */
+			$output->setSquidMaxage( 1200 );
+			$output->redirect( $title->getFullURL(), '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
+	 */
+	function articleFromTitle( $title ) {
+		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' );
+		foreach( $updates as $up ) {
+			$up->doUpdate();
+		}
+		wfProfileOut( 'MediaWiki::doUpdates' );
+	}
+
+	/**
+	 * Do a job from the job queue
+	 */
+	function doJobs() {
+		global $wgJobRunRate;
+		
+		if ( $wgJobRunRate <= 0 ) {
+			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 ) {
+		wfProfileClose();
+		logProfilingData();
+		$loadBalancer->closeAll();
+		wfDebug( "Request ended normally\n" );
+	}
+
+	/**
+	 * Perform one of the "standard" actions
+	 */
+	function performAction( &$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( $article );
+				break;
+			case 'submit':
+				if( !$this->getVal( 'CommandLineMode' ) && !$request->checkSessionCookie() ) {
+					/* Send a cookie so anons get talk message notifications */
+					User::SetupSession();
+				}
+				/* 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 ) ) {
+					$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' ) );
+				}
+				$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 */
+
+?>