Clarification for $wgRestrictionLevels

[lhc/web/wiklou.git] / includes / WebRequest.php

diff --git a/includes/WebRequest.php b/includes/WebRequest.php
index 53273a2..a5a550b 100644 (file)
--- a/includes/WebRequest.php
+++ b/includes/WebRequest.php
@@ -44,17 +44,93 @@ if ( !function_exists( '__autoload' ) ) {
 class WebRequest {
        function __construct() {
                $this->checkMagicQuotes();
+       }
+       
+       /**
+        * Check for title, action, and/or variant data in the URL
+        * and interpolate it into the GET variables.
+        * This should only be run after $wgContLang is available,
+        * as we may need the list of language variants to determine
+        * available variant URLs.
+        */
+       function interpolateTitle() {
                global $wgUsePathInfo;
                if ( $wgUsePathInfo ) {
-                       if ( isset( $_SERVER['ORIG_PATH_INFO'] ) && $_SERVER['ORIG_PATH_INFO'] != '' ) {
-                               # Mangled PATH_INFO
-                               # http://bugs.php.net/bug.php?id=31892
-                               # Also reported when ini_get('cgi.fix_pathinfo')==false
-                               $_GET['title'] = $_REQUEST['title'] = substr( $_SERVER['ORIG_PATH_INFO'], 1 );
-                       } elseif ( isset( $_SERVER['PATH_INFO'] ) && ($_SERVER['PATH_INFO'] != '') && $wgUsePathInfo ) {
-                               $_GET['title'] = $_REQUEST['title'] = substr( $_SERVER['PATH_INFO'], 1 );
+                       // PATH_INFO is mangled due to http://bugs.php.net/bug.php?id=31892
+                       // And also by Apache 2.x, double slashes are converted to single slashes.
+                       // So we will use REQUEST_URI if possible.
+                       $matches = array();
+                       if ( !empty( $_SERVER['REQUEST_URI'] ) ) {
+                               // Slurp out the path portion to examine...
+                               $url = $_SERVER['REQUEST_URI'];
+                               if ( !preg_match( '!^https?://!', $url ) ) {
+                                       $url = 'http://unused' . $url;
+                               }
+                               $a = parse_url( $url );
+                               if( $a ) {
+                                       $path = $a['path'];
+                                       
+                                       global $wgArticlePath;
+                                       $matches = $this->extractTitle( $path, $wgArticlePath );
+                                       
+                                       global $wgActionPaths;
+                                       if( !$matches && $wgActionPaths) {
+                                               $matches = $this->extractTitle( $path, $wgActionPaths, 'action' );
+                                       }
+                                       
+                                       global $wgVariantArticlePath, $wgContLang;
+                                       if( !$matches && $wgVariantArticlePath ) {
+                                               $variantPaths = array();
+                                               foreach( $wgContLang->getVariants() as $variant ) {
+                                                       $variantPaths[$variant] =
+                                                               str_replace( '$2', $variant, $wgVariantArticlePath );
+                                               }
+                                               $matches = $this->extractTitle( $path, $variantPaths, 'variant' );
+                                       }
+                               }
+                       } elseif ( isset( $_SERVER['ORIG_PATH_INFO'] ) && $_SERVER['ORIG_PATH_INFO'] != '' ) {
+                               // Mangled PATH_INFO
+                               // http://bugs.php.net/bug.php?id=31892
+                               // Also reported when ini_get('cgi.fix_pathinfo')==false
+                               $matches['title'] = substr( $_SERVER['ORIG_PATH_INFO'], 1 );
+                               
+                       } elseif ( isset( $_SERVER['PATH_INFO'] ) && ($_SERVER['PATH_INFO'] != '') ) {
+                               // Regular old PATH_INFO yay
+                               $matches['title'] = substr( $_SERVER['PATH_INFO'], 1 );
+                       }
+                       foreach( $matches as $key => $val) {
+                               $_GET[$key] = $_REQUEST[$key] = $val;
+                       }
+               }
+       }
+       
+       /**
+        * Internal URL rewriting function; tries to extract page title and,
+        * optionally, one other fixed parameter value from a URL path.
+        *
+        * @param string $path the URL path given from the client
+        * @param array $bases one or more URLs, optionally with $1 at the end
+        * @param string $key if provided, the matching key in $bases will be
+        *        passed on as the value of this URL parameter
+        * @return array of URL variables to interpolate; empty if no match
+        */
+       private function extractTitle( $path, $bases, $key=false ) {
+               foreach( (array)$bases as $keyValue => $base ) {
+                       // Find the part after $wgArticlePath
+                       $base = str_replace( '$1', '', $base );
+                       $baseLen = strlen( $base );
+                       if( substr( $path, 0, $baseLen ) == $base ) {
+                               $raw = substr( $path, $baseLen );
+                               if( $raw !== '' ) {
+                                       $matches = array( 'title' => rawurldecode( $raw ) );
+                                       if( $key ) {
+                                               $matches[$key] = $keyValue;
+                                       }
+                                       return $matches;
+                               }
                        }
                }
+               return array();
        }
        
        private $_response;