Catalyst::Engine::HTTP try select

[catagits/Catalyst-Runtime.git] / lib / Catalyst / Engine / CGI.pm

diff --git a/lib/Catalyst/Engine/CGI.pm b/lib/Catalyst/Engine/CGI.pm
index c6d387a..ef29357 100644 (file)
--- a/lib/Catalyst/Engine/CGI.pm
+++ b/lib/Catalyst/Engine/CGI.pm
@@ -7,6 +7,9 @@ use URI;
 require CGI::Simple;
 require CGI::Cookie;
 
+$CGI::Simple::POST_MAX        = 1048576;
+$CGI::Simple::DISABLE_UPLOADS = 0;
+
 __PACKAGE__->mk_accessors('cgi');
 
 =head1 NAME
@@ -15,33 +18,60 @@ Catalyst::Engine::CGI - The CGI Engine
 
 =head1 SYNOPSIS
 
-See L<Catalyst>.
+A script using the Catalyst::Engine::CGI module might look like:
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use lib '/path/to/MyApp/lib';
+    use MyApp;
+
+    MyApp->run;
+
+The application module (C<MyApp>) would use C<Catalyst>, which loads the
+appropriate engine module.
 
 =head1 DESCRIPTION
 
-This is the CGI engine for Catalyst.
+This is the Catalyst engine specialized for the CGI environment (using the
+C<CGI::Simple> and C<CGI::Cookie> modules).  Normally Catalyst will select the
+appropriate engine according to the environment that it detects, however you
+can force Catalyst to use the CGI engine by specifying the following in your
+application module:
+
+    use Catalyst qw(-Engine=CGI);
+
+Catalyst::Engine::CGI generates a full set of HTTP headers, which means that
+applications using the engine must be be configured as "Non-parsed Headers"
+scripts (at least when running under Apache).  To configure this under Apache
+name the starting with C<nph->.
 
-=head2 METHODS
+The performance of this way of using Catalyst is not expected to be
+useful in production applications, but it may be helpful for development.
 
-=head3 run
+=head1 METHODS
 
-To be called from a CGI script to start the Catalyst application.
+=over 4
 
-=head3 cgi
+=item $c->cgi
 
 This config parameter contains the C<CGI::Simple> object.
 
-=head2 OVERLOADED METHODS
+=back
 
-This class overloads some methods from C<Catalyst>.
+=head1 OVERLOADED METHODS
 
-=head3 finalize_headers
+This class overloads some methods from C<Catalyst::Engine>.
+
+=over 4
+
+=item $c->finalize_headers
 
 =cut
 
 sub finalize_headers {
     my $c = shift;
-    my %headers = ( -nph => 1 );
+    my %headers;
     $headers{-status} = $c->response->status if $c->response->status;
     for my $name ( $c->response->headers->header_field_names ) {
         $headers{"-$name"} = $c->response->headers->header($name);
@@ -61,7 +91,9 @@ sub finalize_headers {
     print $c->cgi->header(%headers);
 }
 
-=head3 finalize_output
+=item $c->finalize_output
+
+Prints the response output to STDOUT.
 
 =cut
 
@@ -70,13 +102,25 @@ sub finalize_output {
     print $c->response->output;
 }
 
-=head3 prepare_cookies
+=item $c->prepare_connection
+
+=cut
+
+sub prepare_connection {
+    my $c = shift;
+    $c->req->hostname( $c->cgi->remote_host );
+    $c->req->address( $c->cgi->remote_addr );
+}
+
+=item $c->prepare_cookies
+
+Sets up cookies.
 
 =cut
 
 sub prepare_cookies { shift->req->cookies( { CGI::Cookie->fetch } ) }
 
-=head3 prepare_headers
+=item $c->prepare_headers
 
 =cut
 
@@ -87,14 +131,19 @@ sub prepare_headers {
         ( my $field = $header ) =~ s/^HTTPS?_//;
         $c->req->headers->header( $field => $c->cgi->http($header) );
     }
+    $c->req->headers->header( 'Content-Type'   => $c->cgi->content_type );
+    $c->req->headers->header( 'Content-Length' => $c->cgi->content_length );
 }
 
-=head3 prepare_parameters
+=item $c->prepare_parameters
 
 =cut
 
 sub prepare_parameters {
     my $c    = shift;
+
+    $c->cgi->parse_query_string;
+ 
     my %vars = $c->cgi->Vars;
     while ( my ( $key, $value ) = each %vars ) {
         my @values = split "\0", $value;
@@ -103,48 +152,66 @@ sub prepare_parameters {
     $c->req->parameters( {%vars} );
 }
 
-=head3 prepare_path
+=item $c->prepare_path
 
 =cut
 
 sub prepare_path {
     my $c = shift;
-    $c->req->path( $c->cgi->url( -absolute => 1, -path_info => 1 ) );
-    my $loc = $c->cgi->url( -absolute => 1 );
-    no warnings 'uninitialized';
-    $c->req->{path} =~ s/^($loc)?\///;
-    $c->req->{path} .= '/' if $c->req->path eq $loc;
-    my $base = $c->cgi->url;
-    $base = URI->new($base);
-    $base->path('/') if ( $ENV{CATALYST_TEST} || !$base->path );
-    $c->req->base( $base->as_string );
+
+    my $base;
+    {
+        my $scheme = $ENV{HTTPS} ? 'https' : 'http';
+        my $host   = $ENV{HTTP_HOST} || $ENV{SERVER_NAME};
+        my $port   = $ENV{SERVER_PORT} || 80;
+        my $path   = $ENV{SCRIPT_NAME} || '/';
+
+        $base = URI->new;
+        $base->scheme($scheme);
+        $base->host($host);
+        $base->port($port);
+        $base->path($path);
+
+        $base = $base->canonical->as_string;
+    }
+
+    my $path = $ENV{PATH_INFO} || '/';
+    $path =~  s/^\///;
+
+    $c->req->base($base);
+    $c->req->path($path);
 }
 
-=head3 prepare_request
+=item $c->prepare_request
 
 =cut
 
 sub prepare_request { shift->cgi( CGI::Simple->new ) }
 
-=head3 prepare_uploads
+=item $c->prepare_uploads
 
 =cut
 
 sub prepare_uploads {
     my $c = shift;
     for my $name ( $c->cgi->upload ) {
-        my $filename = $c->req->params->{$name};
+        next unless defined $name;
         $c->req->uploads->{$name} = {
-            fh       => $c->cgi->upload($filename),
-            filename => $filename,
-            size     => $c->cgi->upload_info( $filename, 'size' ),
-            type     => $c->cgi->upload_info( $filename, 'mime' )
+            fh   => $c->cgi->upload($name),
+            size => $c->cgi->upload_info( $name, 'size' ),
+            type => $c->cgi->upload_info( $name, 'mime' )
         };
     }
 }
 
+=item $c->run
+
+=cut
+
 sub run { shift->handler }
 
+=back
+
 =head1 SEE ALSO
 
 L<Catalyst>.
@@ -161,4 +228,3 @@ the same terms as Perl itself.
 =cut
 
 1;
-## Please see file perltidy.ERR