replace TYPE= with ENGINE=, (supported since 4.0, TYPE deprecated since 4.1)
[lhc/web/wiklou.git] / includes / Wiki.php
index 30994a5..0a0bd42 100644 (file)
@@ -28,7 +28,7 @@ class MediaWiki {
         * Retieves 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];
@@ -36,74 +36,18 @@ class MediaWiki {
                return $default;
        }
        
-       /**
-        * Wrapper for getrusage, if it exists
-        * getrusage() does not exist on the Window$ platform, catching this
-        */
-       function getRUsage() {
-               if ( function_exists ( 'getrusage' ) ) {
-                       return getrusage();
-               } else {
-                       return array();
-               }
-       }
-       
-       /**
-        * CHeck for $GLOBALS vulnerability
-        */
-       function ckeckGlobalsVulnerability() {
-               @ini_set( 'allow_url_fopen', 0 ); # For security...
-               if ( isset( $_REQUEST['GLOBALS'] ) ) {
-                       die( '<a href="http://www.hardened-php.net/index.76.html">$GLOBALS overwrite vulnerability</a>');
-               }
-       }
-       
-       /**
-        * Checks if the wiki is set up at all, or configured but not activated
-        */
-       function checkSetup() {
-               if ( file_exists( './LocalSettings.php' ) ) {
-                       /* LocalSettings exists, commerce normally */
-                       return;
-               }
-               
-               /* LocalSettings is not in the right place, do something */
-               $IP = ".";
-               require_once( 'includes/DefaultSettings.php' ); # used for printing the version
-               $out = file_get_contents( "./setup_message.html" );
-               $out = str_replace( "$1", $wgVersion, $out );
-               if ( file_exists( 'config/LocalSettings.php' ) ) {
-                       $msg = "To complete the installation, move <tt>config/LocalSettings.php</tt> to the parent directory.";
-               } else {
-                       $msg = "Please <a href='config/index.php' title='setup'>setup the wiki</a> first.";
-               }
-               $out = str_replace( "$2", $msg, $out );
-               echo $out;
-               die();
-       }
-       
-       /**
-        * Reads title and action values from request
-        */
-       function initializeActionTitle () {
-               $request = $this->getVal( 'Request' );
-               $this->setVal( 'action', $request->getVal( 'action', 'view' ) );
-               $this->setVal( 'urltitle', $request->getVal( 'title' ) );
-       }
-       
        /**
         * Initialization of ... everything
         @return Article either the object to become $wgArticle, or NULL
         */
-       function initialize ( &$title, &$output, &$user ) {
+       function initialize ( &$title, &$output, &$user, $request) {
                wfProfileIn( 'MediaWiki::initialize' );
-               $request = $this->getVal( 'Request' );
-               $this->preliminaryChecks ( $title, $output );
+               $this->preliminaryChecks ( $title, $output, $request ) ;
                $article = NULL;
-               if ( !$this->initializeSpecialCases( $title, $output ) ) {
-                       $article = $this->initializeArticle( $title );
+               if ( !$this->initializeSpecialCases( $title, $output, $request ) ) {
+                       $article = $this->initializeArticle( $title, $request );
                        if( is_object( $article ) ) {
-                               $this->performAction( $output, $article, $title, $user );
+                               $this->performAction( $output, $article, $title, $user, $request );
                        } elseif( is_string( $article ) ) {
                                $output->redirect( $article );
                        } else {
@@ -116,17 +60,14 @@ class MediaWiki {
        
        /**
         * Checks some initial queries
+        * Note that $title here is *not* a Title object, but a string!
         */
-       function checkInitialQueries( &$output, $lang) {
-               wfProfileIn( 'MediaWiki::checkInitialQueries' );
-               $request = $this->getVal( 'Request' );
-               $action = $this->getVal( 'action' );
-               $title = $this->getVal( 'urltitle' );
+       function checkInitialQueries( $title,$action,&$output,$request, $lang) {
                if ($request->getVal( 'printable' ) == 'yes') {
                        $output->setPrintable();
                }
                
-               $ret = NULL;
+               $ret = NULL ;
                
                
                if ( '' == $title && 'delete' != $action ) {
@@ -143,15 +84,14 @@ class MediaWiki {
                                $lang->findVariantLink( $title, $ret );
                
                }
-               wfProfileOut( 'MediaWiki::checkInitialQueries' );
-               return $ret;
+               return $ret ;
        }
        
        /**
         * Checks for search query and anon-cannot-read case
         */
-       function preliminaryChecks ( &$title, &$output ) {
-               $request = $this->getVal( 'Request' );
+       function preliminaryChecks ( &$title, &$output, $request ) {
+       
                # Debug statement for user levels
                // print_r($wgUser);
                
@@ -161,7 +101,7 @@ class MediaWiki {
                        // Do this above the read whitelist check for security...
                        $title = Title::makeTitle( NS_SPECIAL, 'Search' );
                }
-               $this->setVal( "Search", $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
@@ -177,9 +117,9 @@ class MediaWiki {
        /**
         * Initialize the object to be known as $wgArticle for special cases
         */
-       function initializeSpecialCases ( &$title, &$output ) {
+       function initializeSpecialCases ( &$title, &$output, $request ) {
+
                wfProfileIn( 'MediaWiki::initializeSpecialCases' );
-               $request = $this->getVal( 'Request' );
                
                $search = $this->getVal('Search');
                $action = $this->getVal('Action');
@@ -250,32 +190,53 @@ class MediaWiki {
         * 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 ) {
+       function initializeArticle( $title, $request ) {
+               global $wgTitle;
                wfProfileIn( 'MediaWiki::initializeArticle' );
                
-               $request = $this->getVal( 'Request' );
                $action = $this->getVal('Action');
                $article = $this->articleFromTitle( $title );
                
                // Namespace might change when using redirects
-               if( $action == 'view' && !$request->getVal( 'oldid' ) && $request->getVal( 'redirect' ) != 'no' ) {
-                       $target = $article->followRedirect();
-                       if( is_string( $target ) ) {
-                               global $wgDisableHardRedirects;
-                               if( !$wgDisableHardRedirects ) {
-                                       // we'll need to redirect
-                                       return $target;
-                               }
+               if( $action == 'view' && !$request->getVal( 'oldid' ) &&
+                                               $request->getVal( 'redirect' ) != 'no' ) {
+                       $dbr=&wfGetDB(DB_SLAVE);
+                       
+                       // If we don't check for existance we'll get "Trying to get
+                       // property of non-object" E_NOTICE in Article::loadPageData() when
+                       // viewing a page that does not exist
+                       if ( $article->exists() ) {
+                               $article->loadPageData($article->pageDataFromTitle($dbr,$title));
                        }
-                       if( is_object( $target ) ) {
-                               // evil globals hack!
-                               global $wgTitle;
-                               $wgTitle = $target;
-                               
-                               $article = $this->articleFromTitle( $target );
-                               $article->setRedirectedFrom( $title );
+                       
+                       /* Follow redirects only for... redirects */
+                       if ($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 = $article->mTitle;
                        }
                }
                wfProfileOut( 'MediaWiki::initializeArticle' );
@@ -288,6 +249,7 @@ class MediaWiki {
        function finalCleanup ( &$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();
@@ -305,7 +267,39 @@ class MediaWiki {
                foreach( $updates as $up ) {
                        $up->doUpdate();
                }
-               wfProfileOut( 'MediaWiki::doUpdates' );         
+               wfProfileOut( 'MediaWiki::doUpdates' );
+       }
+
+       /**
+        * Do a job from the job queue
+        */
+       function doJobs() {
+               global $wgJobLogFile, $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 );
+               }
+
+               require_once( 'JobQueue.php' );
+
+               while ( $n-- && false != ($job = Job::pop())) {
+                       $output = $job->toString() . "\n";
+                       if ( !$job->run() ) {
+                               $output .= "Error: " . $job->getLastError() . "\n";
+                       }
+                       if ( $wgJobLogFile ) {
+                               error_log( $output, 3, $wgJobLogFile );
+                       }
+               }
        }
        
        /**
@@ -321,14 +315,14 @@ class MediaWiki {
        /**
         * Perform one of the "standard" actions
         */
-       function performAction( &$output, &$article, &$title, &$user ) {
+       function performAction( &$output, &$article, &$title, &$user, &$request ) {
+
                wfProfileIn( 'MediaWiki::performAction' );
-               
-               $request = $this->getVal( 'Request' );
+
                $action = $this->getVal('Action');
                if( in_array( $action, $this->getVal('DisabledActions',array()) ) ) {
                        /* No such action; this will switch to the default case */
-                       $action = "nosuchaction"; 
+                       $action = 'nosuchaction';
                }
 
                switch( $action ) {
@@ -414,12 +408,12 @@ class MediaWiki {
                                if( wfRunHooks( 'UnknownAction', array( $action, $article ) ) ) {
                                        $output->errorpage( 'nosuchaction', 'nosuchactiontext' );
                                }
+               }
                wfProfileOut( 'MediaWiki::performAction' );
-       }
 
        
        }
 
 }; /* End of class MediaWiki */
 
-?>
\ No newline at end of file
+?>