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From: Eric Wong <normalperson@yhbt.net>
To: unicorn list <mongrel-unicorn@rubyforge.org>
Subject: Re: X-Forwarded-Proto / X_FORWARDED_PROTO
Date: Sat, 9 Jan 2010 22:39:03 +0000	[thread overview]
Message-ID: <20100109223903.GC7480@dcvr.yhbt.net> (raw)
In-Reply-To: <20100109221656.GA8846@waste.org>

skaar <skaar@waste.org> wrote:
> Eric,
> 
> think I came across an issue with the parser in unicorn, with a request
> (due to 2 layers of nginx proxying) coming across with both a
> X_FORWARDED_PROTO and a X-Forwarded-Proto header. From the socket (in
> HttpRequest) - we get:
> 
>   X_FORWARDED_PROTO: http
>   X-Forwarded-Proto: https
> 
> which is parsed to 
> 
>   HTTP_X_FORWARDED_PROTO"=>"http,https
> 
> There was a passenger ticket that describes that from nginx's point of
> view - X-Forwarded-Proto is the "correct" form. 

Hi skaar,

The Rack (and CGI) specs require that '-' be replaced with '_' for
HTTP header names, so Unicorn is doing the correct thing and treating
it as the same header.

Even though '_' appears to be allowed in header names by rfc 2616, it's
use is questionable as there are parsers that reject it.  Any chance of
fixing whatever sends the "X_FORWARDED_PROTO" header?  It's completely
pointless to set to "http"

-- 
Eric Wong
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  parent reply	other threads:[~2010-01-09 22:39 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-09 22:16 X-Forwarded-Proto / X_FORWARDED_PROTO skaar
2010-01-09 22:33 ` Iñaki Baz Castillo
2010-01-09 22:39 ` Eric Wong [this message]
2010-01-09 23:29   ` skaar
2010-01-09 23:45     ` Iñaki Baz Castillo
2010-01-10  6:12       ` Eric Wong
2010-01-10  6:32         ` Eric Wong
2010-01-10 11:43           ` John-Paul Bader
2010-01-19 21:43           ` Eric Wong

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