Re: gitweb: in-page errors don't work with mod_perl

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Hello!

Jürgen Kreileder <jk@xxxxxxxxxxxx> writes:

> when gitweb.perl (208a1cc3d3) is run with mod_perl2 (2.0.5-2ubuntu1 on
> Ubuntu 11.10) custom error pages don't work: Any page with status !=
> 200 shows the plain Apache error document instead of a gitweb's error
> page.

Thanks for reporting it.  I wonder if it worked at all anytime...

Anyway, does the following patch fixes this issue for you?

-- >8 --
Subject: [PATCH] gitweb: Fix error handling for mod_perl

When gitweb was run with mod_perl2 (using ModPerl::Registry), the
custom error pages don't work: Any page with status != 200 had the
plain Apache error document appended to a gitweb's error page, e.g.

  <?xml version="1.0" encoding="utf-8"?>
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  ...
  </html><!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
  <html><head>
  <title>404 Not Found</title>
  </head><body>
  <h1>Not Found</h1>
  <p>The requested URL ... was not found on this server.</p>
  <hr>
  <address>Apache/2.0.54 (Fedora) Server at localhost Port 80</address>
  </body></html>

When serving gitweb with application/xhtml+xml mimetype this results
in malformed XML and some browsers do not showing output at all.


The solution used by this commit is to tell mod_perl that it is O.K.,
and we handled all errors by ourselves.

This make us not depend in whether there is or not

  PerlOptions +ParseHeaders

in Apache configuration section for mod_perl.

Reported-by: Jürgen Kreileder <jk@xxxxxxxxxxxx>
Signed-off-by: Jakub Narębski <jnareb@xxxxxxxxx>
---
 gitweb/gitweb.perl |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 4f0c3bd..f51cce1 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1239,6 +1239,11 @@ sub run {
 
 run();
 
+if ($ENV{'MOD_PERL'}) {
+	# mod_perl needs to be told that error page was already created
+	my $r = $cgi->r;
+	$r->status(200);
+}
 if (defined caller) {
 	# wrapped in a subroutine processing requests,
 	# e.g. mod_perl with ModPerl::Registry, or PSGI with Plack::App::WrapCGI
-- 
1.7.6

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