package Catalyst::Controller::CGIBin;
-use strict;
-use warnings;
+use Moose;
+use mro 'c3';
+
+extends 'Catalyst::Controller::WrapCGI';
-use Class::C3;
-use URI::Escape;
use File::Slurp 'slurp';
use File::Find::Rule ();
-use Cwd;
use Catalyst::Exception ();
-use File::Spec::Functions 'splitdir';
-
-use parent 'Catalyst::Controller::WrapCGI';
+use File::Spec::Functions qw/splitdir abs2rel/;
+use IPC::Open3;
+use Symbol 'gensym';
+use List::MoreUtils 'any';
+use IO::File ();
+use Carp;
+use File::Temp 'tempfile';
+
+use namespace::clean -except => 'meta';
=head1 NAME
=head1 VERSION
-Version 0.001
+Version 0.022
=cut
-our $VERSION = '0.001';
+our $VERSION = '0.022';
=head1 SYNOPSIS
use parent qw/Catalyst::Controller::CGIBin/;
- # example of a forward to /cgi-bin/hlagh/mtfnpy.cgi
- sub dongs : Local Args(0) {
- my ($self, $c) = @_;
- $c->forward($self->cgi_action('hlagh/mtfnpy.cgi'));
- }
-
In your .conf:
<Controller::Foo>
+ cgi_root_path cgi-bin
+ cgi_dir cgi-bin
<CGI>
username_field username # used for REMOTE_USER env var
pass_env PERL5LIB
=head1 DESCRIPTION
-Dispatches to executable CGI files in root/cgi-bin for /cgi-bin/ paths.
+Dispatches to CGI files in root/cgi-bin for /cgi-bin/ paths.
-CGI paths are converted into action names using cgi_action (below.)
+Unlike L<ModPerl::Registry> this module does _NOT_ stat and recompile the CGI
+for every invocation. This may be supported in the future if there's interest.
-A path such as C<root/cgi-bin/hlagh/bar.cgi> will get the private path
-C<foo/CGI_hlagh_bar_cgi>, for controller Foo, with the C</>s converted to C<_>s
-and prepended with C<CGI_>, as well as all non-word characters converted to
-C<_>s. This is because L<Catalyst> action names can't have non-word characters
-in them.
+CGI paths are converted into action names using L</cgi_action>.
Inherits from L<Catalyst::Controller::WrapCGI>, see the documentation for that
-module for configuration information.
+module for other configuration information.
+
+=head1 CONFIG PARAMS
+
+=head2 cgi_root_path
+
+The global URI path prefix for CGIs, defaults to C<cgi-bin>.
+
+=head2 cgi_dir
+
+Path from which to read CGI files. Can be relative to C<$MYAPP_HOME/root> or
+absolute. Defaults to C<$MYAPP_HOME/root/cgi-bin>.
=cut
+has cgi_root_path => (is => 'ro', isa => 'Str', default => 'cgi-bin');
+has cgi_dir => (is => 'ro', isa => 'Str', default => 'cgi-bin');
+
sub register_actions {
my ($self, $app) = @_;
- my $cwd = getcwd;
-
- my $cgi_bin = $app->path_to('root', 'cgi-bin');
-
- chdir $cgi_bin ||
- Catalyst::Exception->throw(
- message => 'You have no root/cgi-bin directory'
- );
+ my $cgi_bin = File::Spec->file_name_is_absolute($self->cgi_dir) ?
+ $self->cgi_dir
+ : $app->path_to('root', $self->cgi_dir);
my $namespace = $self->action_namespace($app);
my $class = ref $self || $self;
- for my $file (File::Find::Rule->executable->file->in(".")) {
+ for my $file (File::Find::Rule->file->in($cgi_bin)) {
+ my $cgi_path = abs2rel($file, $cgi_bin);
+
+ next if any { $_ eq '.svn' } splitdir $cgi_path;
+ next if $cgi_path =~ /\.swp\z/;
+
+ my $path = join '/' => splitdir($cgi_path);
+ my $action_name = $self->cgi_action($path);
+ my $public_path = $self->cgi_path($path);
+ my $reverse = $namespace ? "$namespace/$action_name" : $action_name;
+ my $attrs = { Path => [ $public_path ] };
+
my ($cgi, $type);
- my $code = do { no warnings; eval 'sub { '.slurp($file).' }' };
- if (!$@) {
- $cgi = $code;
+ if ($self->is_perl_cgi($file)) { # syntax check passed
$type = 'Perl';
+ $cgi = $self->wrap_perl_cgi($file, $action_name);
} else {
- $cgi = sub { system "$cgi_bin/$file" };
$type = 'Non-Perl';
- undef $@;
+ $cgi = $self->wrap_nonperl_cgi($file, $action_name);
}
- $app->log->info("Registering root/cgi_bin/$file as a $type CGI.")
+ $app->log->info("Registering root/cgi-bin/$cgi_path as a $type CGI.")
if $app->debug;
- my $action_name = $self->cgi_action($file);
- my $path = join '/' => splitdir($file);
- my $reverse = $namespace ? "$namespace/$action_name" : $action_name;
- my $attrs = { Path => [ "cgi-bin/$path" ], Args => [ 0 ] };
-
- $code = sub {
+ my $code = sub {
my ($controller, $context) = @_;
$controller->cgi_to_response($context, $cgi)
};
$app->dispatcher->register($app, $action);
}
- chdir $cwd;
-
$self->next::method($app, @_);
+
+# Tell Static::Simple to ignore cgi_dir
+ if ($cgi_bin =~ /^@{[ $app->path_to('root') ]}/) {
+ my $rel = File::Spec->abs2rel($cgi_bin, $app->path_to('root'));
+
+ if (!any { $_ eq $rel }
+ @{ $app->config->{static}{ignore_dirs}||[] }) {
+ push @{ $app->config->{static}{ignore_dirs} }, $rel;
+ }
+ }
}
=head1 METHODS
-=head2 $self->cgi_action($cgi_path)
+=head2 cgi_action
+
+C<< $self->cgi_action($cgi) >>
Takes a path to a CGI from C<root/cgi-bin> such as C<foo/bar.cgi> and returns
-the action name it is registered as.
+the action name it is registered as. See L</DESCRIPTION> for a discussion on how
+CGI actions are named.
+
+A path such as C<root/cgi-bin/hlagh/bar.cgi> will get the private path
+C<foo/CGI_hlagh__bar_cgi>, for controller Foo, with the C</>s converted to C<__>
+and prepended with C<CGI_>, as well as all non-word characters converted to
+C<_>s. This is because L<Catalyst> action names can't have non-word characters
+in them.
+
+This means that C<foo/bar.cgi> and C<foo__bar.cgi> for example will both map to
+the action C<CGI_foo__bar_cgi> so B<DON'T DO THAT>.
=cut
sub cgi_action {
my ($self, $cgi) = @_;
- my $action_name = 'CGI_' . join '_' => splitdir($cgi);
+ my $action_name = 'CGI_' . join '__' => split '/' => $cgi;
$action_name =~ s/\W/_/g;
$action_name
}
-=head1 AUTHOR
+=head2 cgi_path
+
+C<< $self->cgi_path($cgi) >>
+
+Takes a path to a CGI from C<root/cgi-bin> such as C<foo/bar.cgi> and returns
+the public path it should be registered under.
+
+The default is to prefix with C<$cgi_root_path/>, using the C<cgi_root_path>
+config setting, above.
-Rafael Kitover, C<< <rkitover at cpan.org> >>
+=cut
+
+sub cgi_path {
+ my ($self, $cgi) = @_;
+
+ my $root = $self->cgi_root_path;
+ $root =~ s{/*$}{};
+ return "$root/$cgi";
+}
+
+=head2 is_perl_cgi
+
+C<< $self->is_perl_cgi($path) >>
+
+Tries to figure out whether the CGI is Perl or not.
+
+If it's Perl, it will be inlined into a sub instead of being forked off, see
+L</wrap_perl_cgi>.
+
+=cut
+
+sub is_perl_cgi {
+ my ($self, $cgi) = @_;
+
+ my (undef, $tempfile) = tempfile;
+
+ my $pid = fork;
+ die "Cannot fork: $!" unless defined $pid;
+
+ if ($pid) {
+ waitpid $pid, 0;
+ my $errors = IO::File->new($tempfile)->getline;
+ unlink $tempfile;
+ return $errors ? 0 : 1;
+ }
+
+ # child
+ local *NULL;
+ open NULL, '>', File::Spec->devnull;
+ open STDOUT, '>&', \*NULL;
+ open STDERR, '>&', \*NULL;
+ close STDIN;
+
+ eval { $self->wrap_perl_cgi($cgi, '__DUMMY__') };
+
+ IO::File->new(">$tempfile")->print($@);
+
+ exit;
+}
+
+=head2 wrap_perl_cgi
+
+C<< $self->wrap_perl_cgi($path, $action_name) >>
+
+Takes the path to a Perl CGI and returns a coderef suitable for passing to
+cgi_to_response (from L<Catalyst::Controller::WrapCGI>.)
+
+C<$action_name> is the generated name for the action representing the CGI file
+from C<cgi_action>.
+
+This is similar to how L<ModPerl::Registry> works, but will only work for
+well-written CGIs. Otherwise, you may have to override this method to do
+something more involved (see L<ModPerl::PerlRun>.)
+
+Scripts with C<__DATA__> sections now work too, as well as scripts that call
+C<exit()>.
+
+=cut
+
+sub wrap_perl_cgi {
+ my ($self, $cgi, $action_name) = @_;
+
+ my $code = slurp $cgi;
+
+ $code =~ s/^__DATA__\n(.*)//ms;
+ my $data = $1;
+
+ my $orig_exit = \*CORE::GLOBAL::exit;
+ my $orig_die = $SIG{__DIE__};
+ my $orig_warn = $SIG{__WARN__};
+
+ my $coderef = do {
+ no warnings;
+ # catch exit() and turn it into (effectively) a return
+ # we *must* eval STRING because the code needs to be compiled with the
+ # overridden CORE::GLOBAL::exit in view
+ #
+ # set $0 to the name of the cgi file in case it's used there
+ my $source = '
+ my $cgi_exited = "EXIT\n";
+ BEGIN { *CORE::GLOBAL::exit = sub (;$) {
+ die [ $cgi_exited, $_[0] || 0 ];
+ } }
+ package Catalyst::Controller::CGIBin::_CGIs_::'.$action_name.';
+ sub {'."\n"
+ . 'local *DATA;'."\n"
+ . q{open DATA, '<', \$data;}."\n"
+ . qq{local \$0 = "\Q$cgi\E";}."\n"
+ . q/my $rv = eval {/."\n"
+ . 'local $SIG{__DIE__} = $SIG{__DIE__} || sub { die @_ };'."\n"
+ . 'local $SIG{__WARN__} = $SIG{__WARN__} || sub { warn @_ };'."\n"
+ . $code
+ . q/};/
+ . q{
+ return $rv unless $@;
+ die $@ if $@ and not (
+ ref($@) eq 'ARRAY' and
+ $@->[0] eq $cgi_exited
+ );
+ die "exited nonzero: $@->[1]" if $@->[1] != 0;
+ return $rv;
+ }
+ . '}';
+ eval $source;
+ };
+
+ # clean up
+ *CORE::GLOBAL::exit = $orig_exit;
+ $SIG{__DIE__} = $orig_die;
+ $SIG{__WARN__} = $orig_warn;
+
+ croak __PACKAGE__ . ": Could not compile $cgi to coderef: $@" if $@;
+
+ return $coderef
+}
+
+=head2 wrap_nonperl_cgi
+
+C<< $self->wrap_nonperl_cgi($path, $action_name) >>
+
+Takes the path to a non-Perl CGI and returns a coderef for executing it.
+
+C<$action_name> is the generated name for the action representing the CGI file.
+
+By default returns:
+
+ sub { system $path }
+
+=cut
+
+sub wrap_nonperl_cgi {
+ my ($self, $cgi, $action_name) = @_;
+
+ sub { system $cgi }
+}
+
+__PACKAGE__->meta->make_immutable;
+
+=head1 SEE ALSO
+
+L<Catalyst::Controller::WrapCGI>, L<CatalystX::GlobalContext>,
+L<Catalyst::Controller>, L<CGI>, L<Catalyst>
=head1 BUGS
=back
+=head1 AUTHOR
+
+See L<Catalyst::Controller::WrapCGI/AUTHOR> and
+L<Catalyst::Controller::WrapCGI/CONTRIBUTORS>.
+
=head1 COPYRIGHT & LICENSE
-Copyright (c) 2008 Rafael Kitover
+Copyright (c) 2008-2009 L<Catalyst::Controller::WrapCGI/AUTHOR> and
+L<Catalyst::Controller::WrapCGI/CONTRIBUTORS>.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
projects / catagits/Catalyst-Controller-WrapCGI.git / blobdiff