Apache2::Dispatch issue

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Hey All,

I have been using Apache2::Dispatch with a fair amount of success - and
thank you Fred Moyer very much for this Perl module - until I tried to use
it with a specific web app/virtual host configuration. I wonder if someone
could take a moment and help me out. Basically, I have one "web app" that I
would like to use on two different virtual hosts on my server. When I
configure the location directive, one host works and the other fails. I have
attached the virtualhost config from my server.

As you can see there is nothing out of the ordinary in my configuration. If
I use that configuration and try to access
http://f4lkids.joehep.com/adminis loads as expect, but when I try to
access
http://f4l.joehep.com/admin I get a 'File does not exist:
/var/www/sites/fit4life/public_html/admin' line in the error log. The
authentication request is made, so I think apache is recognizing the
location directive and if I comment out the f4lkids.joehep.com virtual host
the f4l.joehep.com call works correctly.

I've done the normal searching - google, google groups, the this mailing
list, etc and have not seen anything relating to this issue. If someone
could point me in the correct direction, I would appreciate it. Thank you in
advance for your help.

Thanks,
Joe Breeden

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Hey All,

I have been using Apache2::Dispatch with a fair amount of s=
uccess - and=20
thank you Fred Moyer very much for this Perl module - until I tried to use =
it with a
specific web app/virtual host configuration. I wonder if someone could tak=
e
a moment and help me out. Basically, I have one "web app" that I=
would=20
like to use on two different virtual hosts on my server. When I=20
configure the location directive, one host works and the other fails. I=20
have attached the virtualhost config from my server.


As you can see there is nothing out of the ordinary in my=20
configuration. If I use that configuration and try to access p://f4lkids.joehep.com/admin" target=3D"_blank">http://f4lkids.joehep.com/a=
dmin
is loads as expect, but when I try to access com/admin" target=3D"_blank">http://f4l.joehep.com/admin
I get a 'File does not exist: /var/www/sites/fit4life/public_html/admi=
n'
line in the error log. The authentication request is made, so I think=20
apache is recognizing the location directive and if I comment out the ef=3D"http://f4lkids.joehep.com/" target=3D"_blank">f4lkids.joehep.com
virtual host the f4l.=
joehep.com
call works correctly.

Re: Apache2::Dispatch issue

On Tue, Jun 1, 2010 at 6:43 PM, Joe Breeden wrote:
> I have been using Apache2::Dispatch with a fair amount of success - and
> thank you Fred Moyer very much for this Perl module - until I tried to use
> it with a specific web app/virtual host configuration. I wonder if someone
> could take a moment and help me out. Basically, I have one "web app" that I
> would like to use on two different virtual hosts on my server. When I
> configure the location directive, one host works and the other fails. I have
> attached the virtualhost config from my server.
>
> As you can see there is nothing out of the ordinary in my configuration. If
> I use that configuration and try to access http://f4lkids.joehep.com/admin
> is loads as expect, but when I try to access http://f4l.joehep.com/admin I
> get a 'File does not exist: /var/www/sites/fit4life/public_html/admin' line
> in the error log. The authentication request is made, so I think apache is
> recognizing the location directive and if I comment out the
> f4lkids.joehep.com virtual host the f4l.joehep.com call works correctly.
>
> I've done the normal searching - google, google groups, the this mailing
> list, etc and have not seen anything relating to this issue. If someone
> could point me in the correct direction, I would appreciate it. Thank you in
> advance for your help.

Joe, can you post some of the debugging output from Apache2::Dispatch?
It looks like you have debugging enabled in the config file.

Re: Apache2::Dispatch issue

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I'm seeing this in the log on hits that fail:

Use of uninitialized value in substitution iterator at
/usr/lib/perl5/site_perl/5.8.8/Apache/Dispatch/Util.pm line 350.
Use of uninitialized value in string eq at
/usr/lib/perl5/site_perl/5.8.8/Apache/Dispatch/Util.pm line 368.


and this on hits that succeed:
Use of uninitialized value in subroutine entry at
/usr/lib/perl5/site_perl/5.8.8/Apache2/Dispatch.pm line 74.
Use of uninitialized value in subroutine entry at
/usr/lib/perl5/site_perl/5.8.8/Apache2/Dispatch.pm line 74.


On Mon, Jun 7, 2010 at 7:50 PM, Fred Moyer wrote:

> On Tue, Jun 1, 2010 at 6:43 PM, Joe Breeden wrote:
> > I have been using Apache2::Dispatch with a fair amount of success - and
> > thank you Fred Moyer very much for this Perl module - until I tried to
> use
> > it with a specific web app/virtual host configuration. I wonder if
> someone
> > could take a moment and help me out. Basically, I have one "web app" that
> I
> > would like to use on two different virtual hosts on my server. When I
> > configure the location directive, one host works and the other fails. I
> have
> > attached the virtualhost config from my server.
> >
> > As you can see there is nothing out of the ordinary in my configuration.
> If
> > I use that configuration and try to access
> http://f4lkids.joehep.com/admin
> > is loads as expect, but when I try to access http://f4l.joehep.com/adminI
> > get a 'File does not exist: /var/www/sites/fit4life/public_html/admin'
> line
> > in the error log. The authentication request is made, so I think apache
> is
> > recognizing the location directive and if I comment out the
> > f4lkids.joehep.com virtual host the f4l.joehep.com call works correctly.
> >
> > I've done the normal searching - google, google groups, the this mailing
> > list, etc and have not seen anything relating to this issue. If someone
> > could point me in the correct direction, I would appreciate it. Thank you
> in
> > advance for your help.
>
> Joe, can you post some of the debugging output from Apache2::Dispatch?
> It looks like you have debugging enabled in the config file.
>

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I'm seeing this in the log on hits that fail:

Use of uninitializ=
ed value in substitution iterator at /usr/lib/perl5/site_perl/5.8.8/Apache/=
Dispatch/Util.pm line 350.
Use of uninitialized value in string eq at /u=
sr/lib/perl5/site_perl/5.8.8/Apache/Dispatch/Util.pm line 368.



and this on hits that succeed:
Use of uninitialized value in sub=
routine entry at /usr/lib/perl5/site_perl/5.8.8/Apache2/Dispatch.pm line 74=
..
Use of uninitialized value in subroutine entry at /usr/lib/perl5/site_=
perl/5.8.8/Apache2/Dispatch.pm line 74.

Re: Apache2::Dispatch issue

On Tue, Jun 8, 2010 at 9:10 AM, Joe Breeden wrote:
> I'm seeing this in the log on hits that fail:
>
> Use of uninitialized value in substitution iterator at
> /usr/lib/perl5/site_perl/5.8.8/Apache/Dispatch/Util.pm line 350.
> Use of uninitialized value in string eq at
> /usr/lib/perl5/site_perl/5.8.8/Apache/Dispatch/Util.pm line 368.

Can you apply this patch and post the output from the failed hits?

Index: lib/Apache/Dispatch/Util.pm
==================== =====3D=
==================== =====3D=
=================3D
--- lib/Apache/Dispatch/Util.pm (revision 86)
+++ lib/Apache/Dispatch/Util.pm (working copy)
@@ -326,6 +326,7 @@
my $location;

# change all the / to ::
+ $log->debug('uri: ' . $r->uri) if $debug > 1;
(my $class_and_method =3D $r->uri) =3D~ s!/!::!g;

if ($newloc) {


>
>
> and this on hits that succeed:
> Use of uninitialized value in subroutine entry at
> /usr/lib/perl5/site_perl/5.8.8/Apache2/Dispatch.pm line 74.
> Use of uninitialized value in subroutine entry at
> /usr/lib/perl5/site_perl/5.8.8/Apache2/Dispatch.pm line 74.
>
>
> On Mon, Jun 7, 2010 at 7:50 PM, Fred Moyer wrote=
:
>>
>> On Tue, Jun 1, 2010 at 6:43 PM, Joe Breeden wrot=
e:
>> > I have been using Apache2::Dispatch with a fair amount of success - an=
d
>> > thank you Fred Moyer very much for this Perl module - until I tried to
>> > use
>> > it with a specific web app/virtual host configuration. I wonder if
>> > someone
>> > could take a moment and help me out. Basically, I have one "web app"
>> > that I
>> > would like to use on two different virtual hosts on my server. When I
>> > configure the location directive, one host works and the other fails. =
I
>> > have
>> > attached the virtualhost config from my server.
>> >
>> > As you can see there is nothing out of the ordinary in my configuratio=
n.
>> > If
>> > I use that configuration and try to access
>> > http://f4lkids.joehep.com/admin
>> > is loads as expect, but when I try to access http://f4l.joehep.com/adm=
in
>> > I
>> > get a 'File does not exist: /var/www/sites/fit4life/public_html/admin'
>> > line
>> > in the error log. The authentication request is made, so I think apach=
e
>> > is
>> > recognizing the location directive and if I comment out the
>> > f4lkids.joehep.com virtual host the f4l.joehep.com call works correctl=
y.
>> >
>> > I've done the normal searching - google, google groups, the this maili=
ng
>> > list, etc and have not seen anything relating to this issue. If someon=
e
>> > could point me in the correct direction, I would appreciate it. Thank
>> > you in
>> > advance for your help.
>>
>> Joe, can you post some of the debugging output from Apache2::Dispatch?
>> =A0It looks like you have debugging enabled in the config file.
>
>
>
>

Re: Apache2::Dispatch issue

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On Tue, Jun 8, 2010 at 1:21 PM, Fred Moyer wrote:

> On Tue, Jun 8, 2010 at 9:10 AM, Joe Breeden wrote:
> > I'm seeing this in the log on hits that fail:
> >
> > Use of uninitialized value in substitution iterator at
> > /usr/lib/perl5/site_perl/5.8.8/Apache/Dispatch/Util.pm line 350.
> > Use of uninitialized value in string eq at
> > /usr/lib/perl5/site_perl/5.8.8/Apache/Dispatch/Util.pm line 368.
>
> Can you apply this patch and post the output from the failed hits?
>
> Index: lib/Apache/Dispatch/Util.pm
> ============================================================ =======
> --- lib/Apache/Dispatch/Util.pm (revision 86)
> +++ lib/Apache/Dispatch/Util.pm (working copy)
> @@ -326,6 +326,7 @@
> my $location;
>
> # change all the / to ::
> + $log->debug('uri: ' . $r->uri) if $debug > 1;
> (my $class_and_method = $r->uri) =~ s!/!::!g;
>
> if ($newloc) {
>
>
>
I made the change, but didn't see the output. In fact, I don't think any of
the logging output is actually being generated. It may be because my
mod_perl wasn't compiled with the proper switches for this module. I just
used the mod_perl that was configured with the host. I re-read the perldoc
and noticed this:

"This is alpha software, and as such has not been tested on multiple
platforms or environments for security, stability or other concerns. It
requires PERL_DIRECTIVE_HANDLERS=1, PERL_LOG_API=1, PERL_HANDLER=1, and
maybe other hooks to function properly."

Which makes me think I should look at the way mod_perl was compiled on my
box.

But, just in case it helps, I changed the $log->debug to just a print STDERR
and got:

uri: /admin

Thanks for the help

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perl caller(); where are the file names?

The "latest" apache 1.X, Apache::ASP, linux, perl 5.8.X

We are trying to get a stack dump with names, but caller returns what looks like references. Can we use these to obtain a file name? (We suspect this is a security thing??? __FILE__ doesn't expand in our debugging statements either)

Thanks. If this not the list for these questions, would you please suggest an alternative.

Re: perl caller(); where are the file names?

Hi,

> We are trying to get a stack dump with names, but caller =A0returns what =
looks like references. =A0Can we use these to obtain a file name?

This really depends on how Apache::ASP is written. Some tools, like
Mason, set the filename to your template to make debugging easier. In
this case, it sounds like you're seeing eval'ed code. I'd suggest
talking to the author of Apache::ASP about adding more debugging help.
It's really the thing that makes the more mature tools worth using,
IMO.

- Perrin