From 1365d150db4a08a5facf0fb478338e62733c413a Mon Sep 17 00:00:00 2001
From: gorhill <rhill@raymondhill.net>
Date: Wed, 23 Dec 2015 18:36:57 -0500
Subject: [PATCH] lower parser restrictions for redirect filters

---
 src/js/redirect-engine.js | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/src/js/redirect-engine.js b/src/js/redirect-engine.js
index f642984ac..eff180966 100644
--- a/src/js/redirect-engine.js
+++ b/src/js/redirect-engine.js
@@ -207,11 +207,10 @@ RedirectEngine.prototype.compileRuleFromStaticFilter = function(line) {
         return;
     }
 
-    var pattern = (matches[1] + matches[2]).replace(/[.+?{}()|[\]\\]/g, '\\$&')
-                                           .replace(/\^/g, '[^\\w\\d%-]')
-                                           .replace(/\*/g, '.*?');
-
-    var des = matches[1];
+    var des = matches[1] || '';
+    var pattern = (des + matches[2]).replace(/[.+?{}()|[\]\\]/g, '\\$&')
+                                    .replace(/\^/g, '[^\\w\\d%-]')
+                                    .replace(/\*/g, '.*?');
     var type;
     var redirect = '';
     var srcs = [];
@@ -267,10 +266,6 @@ RedirectEngine.prototype.compileRuleFromStaticFilter = function(line) {
         if ( src.startsWith('~') ) {
             continue;
         }
-        // Need at least one specific src or des.
-        if ( src === '*' && des === '*' ) {
-            continue;
-        }
         out.push(src + '\t' + des + '\t' + type + '\t' + pattern + '\t' + redirect);
     }
 
@@ -279,7 +274,7 @@ RedirectEngine.prototype.compileRuleFromStaticFilter = function(line) {
 
 /******************************************************************************/
 
-RedirectEngine.prototype.reFilterParser = /^\|\|([^\/?#^*]+)([^$]+)\$([^$]+)$/;
+RedirectEngine.prototype.reFilterParser = /^(?:\|\|([^\/?#^*]+)|\*)([^$]+)\$([^$]+)$/;
 
 RedirectEngine.prototype.supportedTypes = (function() {
     var types = Object.create(null);