[squid-users] Squid 3.1 ICAP Issue with REQMOD 302

Hi,

I have recently moved from Squid 3.0 to Squid 3.1. I am trying to integrate it with an ICAP server.

I am having a problem where Squid 3.1  is rejecting some responses from the ICAP server which Squid 3.0 accepted.

The response in question is a REQMOD response where the ICAP server is returning a HTTP 302 response rather than modifying the original HTTP request.

Here is the ICAP request and response:

ICAP Request from Squid:

REQMOD icap://10.1.1.25:1344/reqmod ICAP/1.0\r\n
Host: 10.1.1.25:1344\r\n
Date: Mon, 12 Apr 2010 14:25:39 GMT\r\n
Encapsulated: req-hdr=0, null-body=398\r\n
Allow: 204\r\n
\r\n
GET http://c.proxy.com/www.test.com/ HTTP/1.1\r\n
Host: c.proxy.com\r\n
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3\r\n
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n
Accept-Language: en-gb,en;q=0.5\r\n
Accept-Encoding: gzip,deflate\r\n
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n
Pragma: no-cache\r\n
Cache-Control: no-cache\r\n
\r\n

Response from ICAP Server:

ICAP/1.0 200 OK\r\n
Date: Mon, 12 Apr 2010 14:25:15 GMT\r\n
Connection: keep-alive\r\n
ISTag: "ReqModService"\r\n
Encapsulated: res-hdr=0,null-body=160\r\n
\r\n
HTTP/1.x 302 Found\r\n
content-type: text/html\r\n
location: https://localhost:8443/mib/authentication\r\n
\r\n
\r\n

Squid displays an ICAP error in the browser and states that an illegal response was received from the ICAP server.

Any ideas what might be wrong? Although the ICAP server worked correctly with Squid 3.0 I am open to the possibility that the issue is with the ICAP response and that the old Squid was simply more tolerant than v3.1.

Thanks in advance,
Niall

Niall Ó Cuilinn 
Product Development
ChangingWorlds - A Unit of Amdocs Interactive
t: +353 1 4401268 | niall.ocuilinn_at_changingworlds.com

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Received on Tue Apr 13 2010 - 14:09:30 MDT