NAME
Plack::App::CGIBin - cgi-bin replacement for Plack servers
SYNOPSIS
use
Plack::App::CGIBin;
use
Plack::Builder;
my
$app
= Plack::App::CGIBin->new(
root
=>
"/path/to/cgi-bin"
)->to_app;
builder {
mount
"/cgi-bin"
=>
$app
;
};
# Or from the command line
plackup -MPlack::App::CGIBin -e
'Plack::App::CGIBin->new(root => "/path/to/cgi-bin")->to_app'
DESCRIPTION
Plack::App::CGIBin allows you to load CGI scripts from a directory and convert them into a PSGI application.
This would give you the extreme easiness when you have bunch of old CGI scripts that is loaded using cgi-bin of Apache web server.
HOW IT WORKS
This application checks if a given file path is a perl script and if so, uses CGI::Compile to compile a CGI script into a sub (like ModPerl::Registry) and then run it as a persistent application using CGI::Emulate::PSGI.
If the given file is not a perl script, it executes the script just like a normal CGI script with fork & exec. This is like a normal web server mode and no performance benefit is achieved.
The default mechanism to determine if a given file is a Perl script is as follows:
Check if the filename ends with
.pl
. If yes, it is a Perl script.Open the file and see if the shebang (first line of the file) contains the word
perl
(like#!/usr/bin/perl
). If yes, it is a Perl script.
You can customize this behavior by passing exec_cb
callback, which takes a file path to its first argument.
For example, if your perl-based CGI script uses lots of global variables and such and are not ready to run on a persistent environment, you can do:
my
$app
= Plack::App::CGIBin->new(
root
=>
"/path/to/cgi-bin"
,
exec_cb
=>
sub
{ 1 },
)->to_app;
to always force the execute option for any files.
AUTHOR
Tatsuhiko Miyagawa
SEE ALSO
Plack::App::File CGI::Emulate::PSGI CGI::Compile Plack::App::WrapCGI
See also Plack::App::WrapCGI if you compile one CGI script into a PSGI application without serving CGI scripts from a directory, to remove overhead of filesystem lookups, etc.