locally installed modules not interfacing

mike hal has asked for the wisdom of the Perl Monks concerning the following question:

Hi All, I'm unable to get my locally installed HTTP modules to interface with each other. Apologies in advance for the heaps of code below - I tried to organize it as best as possible.

Here's the path to the modules...

/path/to/the/cgi/bin/cgi-bin/usr/local/lib/perl5/site_perl/HTTP> ls -l
-r--r--r--    1 mhalunen user        19433 Dec  8  2004 Message.pm
-r--r--r--    1 mhalunen user         5030 Apr  7  2004 Request.pm
-r--r--r--    1 mhalunen user        11827 Dec 11  2004 Response.pm
[download]

Here's the program snippet...

use lib qw(/path/to/the/cgi/bin/cgi-bin/usr/local
    /path/to/the/cgi/bin/cgi-bin/usr/local/lib/perl5
    /path/to/the/cgi/bin/cgi-bin/usr/local/bin
    /path/to/the/cgi/bin/cgi-bin/usr/local/lib/perl5/site_perl
    /path/to/the/cgi/bin/cgi-bin/usr/local/bin
    /path/to/the/cgi/bin/cgi-bin/usr/local/lib/perl5/man
    /path/to/the/cgi/bin/cgi-bin/usr/local/lib/perl5/man/man3); 

use XML::Filter::ExceptionLocator;    # <-- locally installed
use HTTP::Request;                    # <-- locally installed (Invokin
+g this module triggers the server error)
[download]

Here's the error...

...got line "compilation failed in require at /path/to/the/cgi/bin/cgi
+-bin/usr/local/lib/perl5/site_perl/http/request.pm line 5.")
[download]

line 5 from request.pm is:

require HTTP::Message;
[download]

It appears to me that HTTP::Request is not interfacing with HTTP::Message. Any thoughts?

Comment on locally installed modules not interfacing Select or Download Code

Replies are listed 'Best First'.
Re: locally installed modules not interfacing by japhy (Canon) on Sep 22, 2005 at 14:41 UTC
Are the files in the proper case? Your error message shows 'http/request.pm' where it should be 'HTTP/Request.pm'. Jeff `japhy` Pinyan, P.L., P.M., P.O.D, X.S.: Perl, regex, and `perl` hacker How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart	[reply]
Re^2: locally installed modules not interfacing by mike hal (Initiate) on Sep 22, 2005 at 15:22 UTC
The modules are named just as they were installed from CPAN. I'm not sure why the error message is displaying both the 'HTTP' directory and module name in lowercase. This is an interesting question.	[reply]
Re: locally installed modules not interfacing by philcrow (Priest) on Sep 22, 2005 at 15:03 UTC
Does the required file correctly compile? Try perl -c Request.pm. Then do the same for the HTTP::Message. If it complains about not being able to find something add a -I /path/to/what/it/could/not/find/lib. Phil	[reply]
Re^2: locally installed modules not interfacing by mike hal (Initiate) on Sep 22, 2005 at 15:15 UTC
Phil Both Request.pm and Message.pm are compiling fine. Good suggestion though. Mike	[reply]
Re: locally installed modules not interfacing by randyk (Parson) on Sep 22, 2005 at 22:49 UTC
Is the listing you provided for the local HTTP subdirectory: `/path/to/the/cgi/bin/cgi-bin/usr/local/lib/perl5/site_perl/HTTP> ls -l -r--r--r-- 1 mhalunen user 19433 Dec 8 2004 Message.pm -r--r--r-- 1 mhalunen user 5030 Apr 7 2004 Request.pm -r--r--r-- 1 mhalunen user 11827 Dec 11 2004 Response.pm` [download] a complete one? The HTTP::* modules provided by libwww-perl indicates that there's more; in particular, HTTP::Headers is present, which is required by HTTP::Message, but is missing in your listing above - is it available elsewhere?. HTTP::Message also may require other modules, such as URI, HTTP::Headers::Util, Compress::Zlib, and others, depending on the context - are these available within the set of directories specified in your use lib statement?	[reply] [d/l]
Re^2: locally installed modules not interfacing by mike hal (Initiate) on Sep 23, 2005 at 12:55 UTC
Hi randyk, I abbreviated the listing. Here's the full file list: drwxr-xr-x 2 mhalunen user 4096 Sep 20 17:56 Cookies -rwxrwxrwx 1 mhalunen user 20549 Nov 12 2004 Cookies.pm -rwxrwxrwx 1 mhalunen user 22179 Dec 11 2004 Daemon.pm -rwxrwxrwx 1 mhalunen user 10744 Oct 23 2003 Date.pm -rw-rw-r-- 1 mhalunen user 0 Sep 23 08:48 docs.txt drwxr-xr-x 2 mhalunen user 4096 Sep 20 17:56 Headers -rwxrwxrwx 1 mhalunen user 21243 Nov 12 2004 Headers.pm -rwxrwxrwx 1 mhalunen user 19433 Sep 22 16:35 Message.pm -rwxrwxrwx 1 mhalunen user 16242 Apr 9 2004 Negotiate.pm -rw-rw-r-- 1 mhalunen user 78 Sep 22 12:31 pwd.txt drwxr-xr-x 2 mhalunen user 4096 Sep 20 17:56 Request -rwxrwxrwx 1 mhalunen user 5030 Apr 7 2004 Request.pm -rwxrwxrwx 1 mhalunen user 11827 Sep 22 16:35 Response.pm -rwxrwxrwx 1 mhalunen user 6653 Oct 23 2003 Status.pm [download] Normally the file permissions are '-r--r--r--'. I changed them for testing.	[reply] [d/l]
Re: locally installed modules not interfacing by randyk (Parson) on Sep 22, 2005 at 19:20 UTC
Does the user/group that the web server (or whoever is invoking the script) is running under have the proper permissions to read the files under /path/to/the/cgi/bin/cgi-bin/?	[reply]
Re^2: locally installed modules not interfacing by mike hal (Initiate) on Sep 22, 2005 at 20:17 UTC
I assume that permissions are OK. When I comment out the HTTP::Request module, the CGI works fine. Other locally installed modules referenced by the CGI are not complaining when the script runs. Good Question.	[reply]
Re^2: locally installed modules not interfacing by mike hal (Initiate) on Sep 23, 2005 at 15:53 UTC
Hi Randy - I think that you are on the right track. I set up a test script that calls this module. When I execute the script from the command line, it executes fine. But when I run the script as a web page, it fails. I think I have it narrowed down. Thanks again for your help.	[reply]
Re: locally installed modules not interfacing by radiantmatrix (Parson) on Sep 22, 2005 at 19:30 UTC
Is it possible that HTTP::Request is not aware, at compile time, of the library search path you've created with 'use lib'? <-radiant.matrix-> Larry Wall is Yoda: there is no `try{}` (ok, except in Perl6; way to ruin a joke, Larry! ;P) The Code that can be seen is not the true Code "In any sufficiently large group of people, most are idiots" - Kaa's Law	[reply]
Re^2: locally installed modules not interfacing by mike hal (Initiate) on Sep 22, 2005 at 20:25 UTC
I think you are asking the right questions. Yes....I think that this is possible. I have tried to address this concern by replacing 'HTTP::Request' in Message.pm with 'require "/absolue/path/to/HTTP/Request.pm";' but I get the same error.	[reply]
Re^3: locally installed modules not interfacing by radiantmatrix (Parson) on Sep 26, 2005 at 15:57 UTC
I think you're missing the point. HTTP::Request `require`'s other modules. But, HTTP::Request may not be aware of your modified `@INC` (which you create with `use lib`). How can HTTP::Request load those if it doesn't know where to find them? I don't know if this is the issue, perhaps a more knowledgeable monk can help. <-radiant.matrix-> Larry Wall is Yoda: there is no `try{}` (ok, except in Perl6; way to ruin a joke, Larry! ;P) The Code that can be seen is not the true Code "In any sufficiently large group of people, most are idiots" - Kaa's Law	[reply]
Re^4: locally installed modules not interfacing by mike hal (Initiate) on Sep 26, 2005 at 18:40 UTC