Re^2: Personal library with CPAN

[monkfan]

Dear Zaxo,
I had my CPAN installation setting following your ingenious solution above.
I never has compilation problem beforehand when running a Perl script (*.pl).

Recently, while trying a CGI script like below (let's call it 'test.cgi'). I had problem compiling it.

#!/usr/bin/perl -w
use CGI ':standard';
use Mail::Sendmail;

Although Mail::Sendmail is successfuly installed, my CGI script can't recognize the location. I encounter this strange result.

When I run this:

$ perl -c test.cgi

# it gives

test.cgi syntax OK

But when I run this with taint:

$ perl -cT test.cgi

It gives:
Can't locate Mail/Sendmail.pm in @INC (@INC contains: ~/lib/perl5/site
+_perl/5.8.5/ /usr/lib/perl5/5.8.5/i386-linux-thread-multi /usr/lib/pe
+rl5/5.8.5 /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi /usr
+/lib/perl5/site_perl/5.8.4/i386-linux-thread-multi /usr/lib/perl5/sit
+e_perl/5.8.3/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.2/i
+386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.1/i386-linux-thre
+ad-multi /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi /usr/
+lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl/5.8.4 /usr/lib/per
+l5/site_perl/5.8.3 /usr/lib/perl5/site_perl/5.8.2 /usr/lib/perl5/site
+_perl/5.8.1 /usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl /
+usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl
+5/vendor_perl/5.8.4/i386-linux-thread-multi /usr/lib/perl5/vendor_per
+l/5.8.3/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.2/i386
+-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.1/i386-linux-threa
+d-multi /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi /usr
+/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl/5.8.4 /usr/li
+b/perl5/vendor_perl/5.8.3 /usr/lib/perl5/vendor_perl/5.8.2 /usr/lib/p
+erl5/vendor_perl/5.8.1 /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl
+5/vendor_perl) at temp.cgi line 4.
BEGIN failed--compilation aborted at temp.cgi line 4.

How can I have my cgi script recognize the location of the library? I also tried using "use lib" construct like this:

#!/usr/bin/perl -w
use CGI ':standard';
use lib "/lib/perl5/site_perl/5.8.5/";
use lib "/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi";
use Mail::Sendmail;

but also gives the same symptom.
Does it has anything to do to the way I install the module following your approach?

Update:

That may fail to influence a web server's Perl environment. If it does, you can use the SetEnv directive in .htaccess or the server configuration for regular cgi scripts.

Just realized you mentioned about the problem above. But how do you actually "SentEnv directive of server config" in my cgi scripts?

[Zaxo]

In a .htaccess file, put

SetEnv PERL5LIB /where/the/mods/are/:/where/else/lib

The web server must be able to read files in those directories, of course. Apache suExec is a great help with that, for security's sake.

See the apache httpd manual for variations that might be handy. When mod_perl is involved, I believe PerlSetEnv is needed, but I've never tried that.

[monkfan]

Zaxo,

I do not have a root (SU) access. Thus, I believe .htaccess cannot be accessible to me. Am I right?
Is there a way to include somekind of snippet in my CGI script to do the similar thing?
As you mentioned also earlier as another alternative.

Update: Along with Zaxo's suggestion above, I can only get my my script going after inserting the following snippet. For further info.

#!/usr/bin/perl -w
use CGI ':standard';

# Newly inserted
BEGIN {
    if ( $ENV{PERL5LIB} and $ENV{PERL5LIB} =~ /^(.*)$/ ) {

        # Blindly untaint.  Taintchecking is to protect
        # from Web data; 
        # the environment is under our control.
        eval "use lib '$_';" foreach ( 
            reverse
            split( /:/, $1 )          
        );
    }
}

use Mail::Sendmail;

[Zaxo]

No, you're not right. The .htaccess files are local to your web space and are owned by you. You should take a good read in the apache manual. All this stuff is covered there