I want to handle ErrorDocuments with a mod_perl module Apache::MyError in a way that the actual error message (server error 500, as written to the logs) is displayed within the result HTML page.

I know that this is evil, just treat it as an academic approach. (What I want to do in real life is mail the message to the webmaster and display a backtrace id to the user referring to that error)

What I have so far is my httpd.conf,

ErrorDocument 500 /errors/500

<Location /errors>
  SetHandler  perl-script
  PerlHandler Apache::MyError
  Options +ExecCGI
  PerlSendHeader On
</Location>

[download]

a script that won't compile under /usr/local/apache/cgi-bin/die.pl and the following:

package Apache::Error;
use strict;
use Apache::Constants qw(:common);

sub handler {

  my $r = Apache->request; 
  my $p = $r->prev;

  $r->status(OK);
  $r->content_type("text/html");
  $r->send_http_header;
  $r->print("<pre>\n");

  $r->print($r->path_info, "\n");
  $r->print($p->notes("error-notes"), "\n");

  $r->print("</pre>\n");

  return OK;
}

1;

[download]

The log says: 

syntax error at /usr/local/apache/cgi-bin/die.pl line 6, near "if {"
Missing right curly or square bracket at /usr/local/apache/cgi-bin/die
+.pl line 8, at end of line
Execution of /usr/local/apache/cgi-bin/die.pl aborted due to compilati
+on errors.
[Mon Sep 30 13:42:51 2002] [error] [client xxx.xxx.xxx.xxx] Premature 
+end of script headers: /usr/local/apache/cgi-bin/die.pl

[download]

$p->notes("error-notes") contains "premature end of ..." but not the "syntax error ..." which is the one I want to have.

Can someone guide me to a solution (I know one from mod_ruby using the method error_message)? Am I missing something?

alex pleiner <alex@zeitform.de>
zeitform Internet Dienste

In reply to mod_perl: how to display the error message within the ErrorDocument by projekt21

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