From 8a8aee80bc2abd5d02c4fb587687ff24ef23c4cb Mon Sep 17 00:00:00 2001
From: Jeff Stieler <jeff.m.stieler@gmail.com>
Date: Tue, 16 Aug 2011 08:35:58 -0400
Subject: [PATCH] Filter out empty extensions fields before adding to regular
expression.
---
cdn-rewrite.php | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/cdn-rewrite.php b/cdn-rewrite.php
index d65b21a..9afadb1 100644
--- a/cdn-rewrite.php
+++ b/cdn-rewrite.php
@@ -138,7 +138,8 @@ class CDN_Rewrite {
$xml_begin = '>';
$xml_end = '<';
}
- $regex = '#(?<=[(\"\''.$xml_begin.'])'.quotemeta($root_url).'(?:(/[^\"\''.$xml_end.')]+\.('.join('|', array($this->file_extensions,$this->css_file_extensions,$this->js_file_extensions)).')))#';
+ $extensions = join('|', array_filter(array($this->file_extensions, $this->css_file_extensions, $this->js_file_extensions)));
+ $regex = '#(?<=[(\"\''.$xml_begin.'])'.quotemeta($root_url).'(?:(/[^\"\''.$xml_end.')]+\.('.$extensions.')))#';
$content = preg_replace_callback($regex, array($this, 'url_rewrite'), $content);
return $content;
--
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