<?php

class MediaWiki {

	var $params = array();
	
	function setVal( $key, &$value ) {
		$this->param[strtolower( $key )] = $value;
	}
	
	function getVal( $key, $default = "" ) {
		$key = strtolower( $key );
		if( isset( $this->params[$key] ) ) {
			return $this->params[$key];
		}
		return $default;
	}

	function initializeArticle( &$title, $request, $action ) {
		if( NS_MEDIA == $title->getNamespace() ) {
			$title = Title::makeTitle( NS_IMAGE, $title->getDBkey() );
		}
	
		$ns = $title->getNamespace();
	
		// 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();
			}
		}

		// Categories and images are handled by a different class
		if( $ns == NS_IMAGE ) {
			unset($article);
			require_once( 'includes/ImagePage.php' );
			return new ImagePage( $title );
		} elseif( $ns == NS_CATEGORY ) {
			unset($article);
			require_once( 'includes/CategoryPage.php' );
			return new CategoryPage( $title );
		}
		return $article;
	}

	function performAction( $action, &$output, &$article, &$title, &$user, &$request ) {
		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 'validate':
			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)) {
					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 );
					$extedit->edit();
				}
				break;
			case 'history':
				if($_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' );
				}
		}
	}

}; # End of class MediaWiki

?>