From 624d83ee186b03ea720a785fc463c381db9ea451 Mon Sep 17 00:00:00 2001
From: Thomas Brüderli
Date: Wed, 18 Apr 2007 07:38:11 +0000
Subject: Unset host header otherwise redirects to other hosts fail; Avoid
 infinite redirect loops

---
 url.class | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/url.class b/url.class
index bdad756..7f9cfb3 100644
--- a/url.class
+++ b/url.class
@@ -34,6 +34,7 @@ class it_url
 	var $headers;		/* Headers of page fetched by get() */
 	var $data;		/* Data part, even if return code is not 200 */
 	var $result;		/* Return code of get() */
+	var $redir = 0;		/* Redirect count */
 
 
 /**
@@ -275,9 +276,10 @@ function get($p=null, $timeout=5000)
 					$url->headers[$parts[1]] = $url->result = $parts[2];
 				elseif (preg_match('#^Location: (https?://[^/]*)?(/)?(.*)$#', $line, $parts) && ($parts[1] != $url->url)) # Handle redirects (supports relative and global)
 				{
-					unset($p['url']);
+					unset($p['url'], $p['headers']['Host']);
 					$url->it_url($parts[1] ? $parts[1].$parts[2].$parts[3] : $url->protocol.'://'.$url->realhostname.($parts[2] ? $parts[2].$parts[3] : '/'.dirname($url->path).'/'.$parts[3]));
-					return $url->get($p);
+					if (++$url->redir <= 4)  /* Avoid infinite redirects */
+						return $url->get($p);
 				}
 				elseif (preg_match('#^([^:]+): (.*)$#', $line, $parts))
 					$url->headers[$parts[1]] = $parts[2];
-- 
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