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From jean-frederic clere <jfrederic.cl...@fujitsu-siemens.com>
Subject Re: Status-Line with no Reason-Phrase
Date Thu, 31 Oct 2002 15:30:50 GMT
I have reported a PR (http://nagoya.apache.org/bugzilla/show_bug.cgi?id=14086) 
about mod_jk. Because I am not getting the "Reason-Phrase" in the response.


Martin Algesten wrote:
> It seems to me that the Coyote JK 2 connector doesn't set the 
> Reason-Phrase for the responses, is this right?
> 
> I know that you don't have to do this according to the HTTP/1.1 spec. 
> However once again my dear mod_proxy isn't to happy about a status line 
> saying: "HTTP/1.1 200 "  (the trailing space is significant). In this 
> situation mod_proxy inserts an extra line break in the header after the 
> status line but before the headers ending up with something like:
> 
> HTTP/1.1 200
> 
> Date: Thu, 31 Oct 2002 14:58:28 GMT
> Server: Apache/1.3.26 (Unix) mod_jk/1.1.0 DAV/1.0.3 mod_ssl/2.8.10 
> OpenSSL/0.9.6g
> Set-Cookie: JSESSIONID=1B937C37372FC2947895B82B361D8B0E; Path=/
> Content-Type: text/html; charset=utf-8
> X-Cache: MISS from rhubarb.salad.taglab.com
> Transfer-Encoding: chunked
> 
> And I can tell you that doesn't look pretty in the browser :)...

My colleague Martin Kraemer fixed something in Apache-1.3 (22/07/2002):
+++
Modified:    src/modules/proxy proxy_util.c
   Log:
   Tomcat with mod_jk2 sometimes omits the Reason-Phrase from the
   response line ("HTTP/1.1 200 \r\n"). It looks like RFC2616 allows this,
   but ap_getline() strips the trailing blank, and that lead to
   an error in ap_proxy_read_response_line() for proxy-requests to
   Tomcat+mod_jk2 servers. (It replaced the NIL after the "200" by
   a space, and so the resulting response line had an extra NL appended).
   Now the SP character which was deleted by ap_getline() is reappended,
   avoiding the erroneous '\0'->' ' change, and preserving RFC2616's
   requirement
        Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF
        Reason-Phrase = *<TEXT, excluding CR, LF>
   (thus there is now always a SP after the Status-Code).
+++
May be you need this fix.

> 
> I know this is really not Coyote's problem, this is a bug in mod_proxy. 
> According to the HTTP/1.1 spec it might even be more correct to send the 
> trailing space than without, however that is exactly what triggers the 
> bug...
> 
> If I despite this would like Coyote JK 2 to provide the Reason-Phrase... 
> Would the correct place to do so be in the org.apache.coyote.Response 
> using org.apache.tomcat.util.http.HttpMessages class?
> 
> Martin
> 
> 
> 
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