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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 13507] New: - capturing stderr from mod_cgi
Date Thu, 10 Oct 2002 19:14:20 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=13507

capturing stderr from mod_cgi

           Summary: capturing stderr from mod_cgi
           Product: Apache httpd-2.0
           Version: 2.0.42
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: Other
         Component: mod_cgi
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: pedietz@west.com


Currently mod_cgi captures all STDERR data and writes it to the error log via 
log_script_err() or writes it into a report via log_script().

I would like to write an independent 2.0 module, that is able to do "it's own 
thing" if "stderr" arrives after running mod_cgi().

Either as a special hook that only mod_cgi(d) looks for:

        if ((ret = ap_scan_script_header_err_brigade(r, bb, sbuf))) {
            if (ap_has_stderr_hook()) {
               return do_stderr_hook(r, conf, ret, dbuf, sbuf, bb, script_err);
            }
            return log_script(r, conf, ret, dbuf, sbuf, bb, script_err);
        }

Or at a global stage, like the other handlers  (though caching the results of 
stderr could be expensive).

TCL throws cgi errors to stderr.  Currently we use a hacked up version of 
mod_cgi for this reason....when a cgierr happens, it escaltes the error to 
certain people, and generates an HTML based report they can click on via a 
JavaScript confirm box "A cgi error has occurred.  Do you want to see it ?"

Phil

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