The following reply was made to PR mod_jserv/4790; it has been noted by GNATS.
From: Ben Kelley <[EMAIL PROTECTED]>
To: jon * <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED]
Subject: Re: mod_jserv/4790: ajp11: cannot scan servlet headers inmod_jserv.log
Date: Wed, 04 Aug 1999 08:59:29 +1000
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Hi.
I haven't had a chance to fully test the code, but the piece of code that I
believe to be incorrect is essentially unchanged in the new version.
The old version of jserv_ajpv11.c, lines 419-426 are:
> /* Receive the response from JServ */
> ap_hard_timeout("ajpv11-read", r);
> if (ret=ap_scan_script_header_err_buff(r,buffsocket,NULL)) {
> ap_kill_timeout(r);
> jserv_error(JSERV_LOG_EMERG,cfg,"ajp11: %s",
> "cannot scan servlet headers");
> return SERVER_ERROR;
> }
>
In the new version, lines 462-469 of jserv_ajpv12.c read:
> /* Receive the response from JServ */
> ap_hard_timeout("ajpv12-read", r);
> if (ret=ap_scan_script_header_err_buff(r,buffsocket,NULL)) {
> ap_kill_timeout(r);
> jserv_error(JSERV_LOG_EMERG,cfg,"ajp12: %s",
> "cannot scan servlet headers");
> return SERVER_ERROR;
> }
>
The problem is how the return code form ap_scan_script_header_err_buff is
handled. It seems that ap_scan_script_header_err_buff returns the HTTP status
of the request. In the case of something like a 304 response, both of these
pieces of code will signal an error. The if statement is checking for non-zero
responses. If it gets a 304, it thinks it is an error.
This is what was happening with my servlet that generated a Last-Modified
header. I found this by changing lines 466,467 (in the old version) to
something like:
> jserv_error(JSERV_LOG_EMERG,cfg,"ajp12: %s %d",
> "cannot scan servlet headers", ret);
>
This showed that ret had a value of 304. Definitely not an error.
I will try to find some time to test the code, but unfortunately I am a bit
busy this week. :(
- Ben Kelley.
jon * wrote:
> ben,
>
> Could you please try the latest cvs version of Apache JServ and let us know
> if the problem has been fixed for you? We have switched to a new version of
> the ajp protocol and this issue may have been resolved already. Note that
> you need to edit your configuration files to reflect ajpv12 instead of
> ajpv11.
>
> thanks,
>
> -jon
--
Ben Kelley - [EMAIL PROTECTED] Ph +61 2 9324 2382
Java Architect - Equities IT - Warburg Dillon Read
throw new UserErrorException("User Error: " +
"Replace user and press <enter> to continue");
Warburg Dillon Read - Sydney - Australia - Earth etc etc
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