Re: BUG in redirection-handling code

Okay...
just been reading this on rfc 2616

is the user using "http/1.1 thru proxies"? if so this is expected
behaviour - see rfc 2068 or rfc 2616 appendices - interoperability between
1.0 and 1.1 persistent connections
is roxen trying to be 1.0 or 1.1 compliant on this request?

1.1:
<!--StartFragment-->
   The temporary URI SHOULD be given by the Location field in the
   response. Unless the request method was HEAD, the entity of the
   response SHOULD contain a short hypertext note with a hyperlink to
   the new URI(s) , since many pre-HTTP/1.1 user agents do not
   understand the 307 status. Therefore, the note SHOULD contain the
   information necessary for a user to repeat the original request on
   the new URI.

so the request should have a entity-body, and therefore should have a
content-length or a transfer encoding (which is 1.1 only) (8.1.2.1
negotiation and 4.4 message length)

1.0 can't answer :-]

----- Original Message -----
From: "Chemolli Francesco (USI)" <ChemolliF@GruppoCredit.it>
To: "'squid-dev'" <squid-dev@squid-cache.org>
Sent: Wednesday, October 18, 2000 10:45 PM
Subject: BUG in redirection-handling code

> Subject: Host redirect v2 fails with IE5 via Squid 2.3 [571]
> This bug was reported to the Roxen WebServer (www.roxen.com)
> bug-management system.
> They are going to work around it, but I believe it would
> be a good idea to check whether squid is at fault.
>
> ------------------------------------------------------------
>
> Reporter: pollcities@yahoo.com
> URL: http://community.roxen.com/crunch/show_bug.cgi?id=571
>
> This is an obscure bug that only manifests with the combination
> (Roxen2.1's host redirect + squid web proxy + IE5).
>
> Roxen does not return a "Content-length: xxx" HTTP header when
> asked to redirect a host (e.g. "default http://foo.com/") using
> the "Host Redirect v2" module. [*]
>
> Squid, upon receiving roxen's response, returns that to the
> browser, but does NOT close the connection to the browser, even
> though a "Connection: close" response is given to the browser.
> This connection will eventually time out.
>
> IE5, the browser, waits for the proxy to close the connection
> before willing to handle the redirection. (Netscape 4 and Mozilla
> 5 closes the connection after receiving "Connection: close"). IE5
> shows blank page (or is it an error? forgot.) after squid->IE5
> times out.
>
> Versions used
> Roxen 2.1.135, and later the latest CVS version
> (hostredirect.pike CVS version 1.23)
> Possibly most other Roxen versions affected as well.
>
> squid-2.3.STABLE2
>
> Internet Explorer 5
>
>
> Proposed workaround:
> hostredirect adds an additional header "Content-length: 0" to
> the http response.
>
> (Someone wanna send a bug report to Squid and IE5?)
> --------------------------------------------------------------
>
> [*] The "host redirect" module is a Roxen module which
> sends an HTTP redirection to a request depending on the contents
> of the Host: HTTP header.
>
>
> --
> /kinkie
>
Received on Wed Oct 18 2000 - 06:06:01 MDT