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.