X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=catagits%2FCatalyst-Runtime.git;a=blobdiff_plain;f=lib%2FCatalyst%2FEngine.pm;h=44176bc2d941128224c09e07157ac7a464310aea;hp=2248f443b588edea03fa14fe8772e13bab50522e;hb=2666dd3ba45edb0fa31508f67d94fe80072f94f6;hpb=d2d570d4496d90acb9f03fa10bf58b90ba8a1361

diff --git a/lib/Catalyst/Engine.pm b/lib/Catalyst/Engine.pm
index 2248f44..44176bc 100644
--- a/lib/Catalyst/Engine.pm
+++ b/lib/Catalyst/Engine.pm
@@ -1,41 +1,22 @@
 package Catalyst::Engine;
 
 use strict;
-use base qw/Class::Data::Inheritable Class::Accessor::Fast/;
-use UNIVERSAL::require;
+use base 'Class::Accessor::Fast';
 use CGI::Cookie;
 use Data::Dumper;
 use HTML::Entities;
+use HTTP::Body;
 use HTTP::Headers;
-use Memoize;
-use Time::HiRes qw/gettimeofday tv_interval/;
-use Text::ASCIITable;
-use Text::ASCIITable::Wrap 'wrap';
-use Tree::Simple;
-use Tree::Simple::Visitor::FindByPath;
-use Catalyst::Request;
-use Catalyst::Response;
+use URI::QueryParam;
 
-require Module::Pluggable::Fast;
+# input position and length
+__PACKAGE__->mk_accessors(qw/read_position read_length/);
 
-$Data::Dumper::Terse = 1;
+# Stringify to class
+use overload '""' => sub { return ref shift }, fallback => 1;
 
-__PACKAGE__->mk_classdata($_) for qw/actions components tree/;
-__PACKAGE__->mk_accessors(qw/request response state/);
-
-__PACKAGE__->actions(
-    { plain => {}, private => {}, regex => {}, compiled => [], reverse => {} }
-);
-__PACKAGE__->tree( Tree::Simple->new( 0, Tree::Simple->ROOT ) );
-
-*comp = \&component;
-*req  = \&request;
-*res  = \&response;
-
-our $COUNT = 1;
-our $START = time;
-
-memoize('_class2prefix');
+# Amount of data to read from input on each pass
+our $CHUNKSIZE = 4096;
 
 =head1 NAME
 
@@ -49,155 +30,40 @@ See L<Catalyst>.
 
 =head1 METHODS
 
-=over 4
-
-=item $c->benchmark($coderef)
-
-Takes a coderef with arguments and returns elapsed time as float.
-
-    my ( $elapsed, $status ) = $c->benchmark( sub { return 1 } );
-    $c->log->info( sprintf "Processing took %f seconds", $elapsed );
-
-=cut
-
-sub benchmark {
-    my $c       = shift;
-    my $code    = shift;
-    my $time    = [gettimeofday];
-    my @return  = &$code(@_);
-    my $elapsed = tv_interval $time;
-    return wantarray ? ( $elapsed, @return ) : $elapsed;
-}
-
-=item $c->comp($name)
-
-=item $c->component($name)
-
-Get a component object by name.
-
-    $c->comp('MyApp::Model::MyModel')->do_stuff;
-
-Regex search for a component.
-
-    $c->comp('mymodel')->do_stuff;
-
-=cut
-
-sub component {
-    my ( $c, $name ) = @_;
-    if ( my $component = $c->components->{$name} ) {
-        return $component;
-    }
-    else {
-        for my $component ( keys %{ $c->components } ) {
-            return $c->components->{$component} if $component =~ /$name/i;
-        }
-    }
-}
-
-=item $c->error
-
-=item $c->error($error, ...)
-
-=item $c->error($arrayref)
-
-Returns an arrayref containing error messages.
-
-    my @error = @{ $c->error };
-
-Add a new error.
-
-    $c->error('Something bad happened');
-
-=cut
+=head2 $self->finalize_output
 
-sub error {
-    my $c = shift;
-    my $error = ref $_[0] eq 'ARRAY' ? $_[0] : [@_];
-    push @{ $c->{error} }, @$error;
-    return $c->{error};
-}
+<obsolete>, see finalize_body
 
-=item $c->execute($class, $coderef)
+=head2 $self->finalize_body($c)
 
-Execute a coderef in given class and catch exceptions.
-Errors are available via $c->error.
+Finalize body.  Prints the response output.
 
 =cut
 
-sub execute {
-    my ( $c, $class, $code ) = @_;
-    $class = $c->comp($class) || $class;
-    $c->state(0);
-    my $callsub = ( caller(1) )[3];
-    eval {
-        if ( $c->debug )
-        {
-            my $action = $c->actions->{reverse}->{"$code"};
-            $action = "/$action" unless $action =~ /\-\>/;
-            $action = "-> $action" if $callsub =~ /forward$/;
-            my ( $elapsed, @state ) =
-              $c->benchmark( $code, $class, $c, @{ $c->req->args } );
-            push @{ $c->{stats} }, [ $action, sprintf( '%fs', $elapsed ) ];
-            $c->state(@state);
+sub finalize_body {
+    my ( $self, $c ) = @_;
+    if ( ref $c->response->body && $c->response->body->can('read') ) {
+        while ( !$c->response->body->eof() ) {
+            $c->response->body->read( my $buffer, $CHUNKSIZE );
+            last unless $self->write( $c, $buffer );
         }
-        else { $c->state( &$code( $class, $c, @{ $c->req->args } ) ) }
-    };
-    if ( my $error = $@ ) {
-        chomp $error;
-        $error = qq/Caught exception "$error"/;
-        $c->log->error($error);
-        $c->error($error) if $c->debug;
-        $c->state(0);
-    }
-    return $c->state;
-}
-
-=item $c->finalize
-
-Finalize request.
-
-=cut
-
-sub finalize {
-    my $c = shift;
-
-    $c->finalize_cookies;
-
-    if ( my $location = $c->response->redirect ) {
-        $c->log->debug(qq/Redirecting to "$location"/) if $c->debug;
-        $c->response->header( Location => $location );
-        $c->response->status(302) if $c->response->status !~ /3\d\d$/;
+        $c->response->body->close();
     }
-
-    if ( $#{ $c->error } >= 0 ) {
-        $c->finalize_error;
-    }
-
-    if ( !$c->response->output && $c->response->status !~ /^(1|3)\d\d$/ ) {
-        $c->finalize_error;
-    }
-
-    if ( $c->response->output && !$c->response->content_length ) {
-        use bytes;    # play safe with a utf8 aware perl
-        $c->response->content_length( length $c->response->output );
+    else {
+        $self->write( $c, $c->response->body );
     }
-
-    my $status = $c->finalize_headers;
-    $c->finalize_output;
-    return $status;
 }
 
-=item $c->finalize_cookies
-
-Finalize cookies.
+=head2 $self->finalize_cookies($c)
 
 =cut
 
 sub finalize_cookies {
-    my $c = shift;
+    my ( $self, $c ) = @_;
 
+    my @cookies;
     while ( my ( $name, $cookie ) = each %{ $c->response->cookies } ) {
+
         my $cookie = CGI::Cookie->new(
             -name    => $name,
             -value   => $cookie->{value},
@@ -207,39 +73,67 @@ sub finalize_cookies {
             -secure  => $cookie->{secure} || 0
         );
 
-        $c->res->headers->push_header( 'Set-Cookie' => $cookie->as_string );
+        push @cookies, $cookie->as_string;
     }
-}
 
-=item $c->finalize_error
+    for my $cookie (@cookies) {
+        $c->res->headers->push_header( 'Set-Cookie' => $cookie );
+    }
+}
 
-Finalize error.
+=head2 $self->finalize_error($c)
 
 =cut
 
 sub finalize_error {
-    my $c = shift;
+    my ( $self, $c ) = @_;
 
-    $c->res->headers->content_type('text/html');
+    $c->res->content_type('text/html; charset=utf-8');
     my $name = $c->config->{name} || 'Catalyst Application';
 
     my ( $title, $error, $infos );
     if ( $c->debug ) {
-        $error = join '<br/>', @{ $c->error };
+
+        # For pretty dumps
+        local $Data::Dumper::Terse = 1;
+        $error = join '', map {
+                '<p><code class="error">'
+              . encode_entities($_)
+              . '</code></p>'
+        } @{ $c->error };
         $error ||= 'No output';
+        $error = qq{<pre wrap="">$error</pre>};
         $title = $name = "$name on Catalyst $Catalyst::VERSION";
+        $name  = "<h1>$name</h1>";
+
+        # Don't show context in the dump
+        delete $c->req->{_context};
+        delete $c->res->{_context};
+
+        # Don't show body parser in the dump
+        delete $c->req->{_body};
+
+        # Don't show response header state in dump
+        delete $c->res->{_finalized_headers};
+
         my $req   = encode_entities Dumper $c->req;
         my $res   = encode_entities Dumper $c->res;
         my $stash = encode_entities Dumper $c->stash;
-        $infos = <<"";
-<br/>
-<b><u>Request</u></b><br/>
-<pre>$req</pre>
-<b><u>Response</u></b><br/>
-<pre>$res</pre>
-<b><u>Stash</u></b><br/>
-<pre>$stash</pre>
 
+        my @infos;
+        my $i = 0;
+        for my $dump ( $c->dump_these ) {
+            my $name  = $dump->[0];
+            my $value = encode_entities( Dumper $dump->[1] );
+            push @infos, sprintf <<"EOF", $name, $value;
+<h2><a href="#" onclick="toggleDump('dump_$i'); return false">%s</a></h2>
+<div id="dump_$i">
+    <pre wrap="">%s</pre>
+</div>
+EOF
+            $i++;
+        }
+        $infos = join "\n", @infos;
     }
     else {
         $title = $name;
@@ -248,20 +142,35 @@ sub finalize_error {
 <pre>
 (en) Please come back later
 (de) Bitte versuchen sie es spaeter nocheinmal
-(nl) Gelieve te komen later terug
+(at) Konnten's bitt'schoen spaeter nochmal reinschauen
 (no) Vennligst prov igjen senere
-(fr) Veuillez revenir plus tard
-(es) Vuelto por favor mas adelante
-(pt) Voltado por favor mais tarde
-(it) Ritornato prego più successivamente
+(dk) Venligst prov igen senere
+(pl) Prosze sprobowac pozniej
 </pre>
 
         $name = '';
     }
-    $c->res->output( <<"" );
-<html>
+    $c->res->body( <<"" );
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 <head>
+    <meta http-equiv="Content-Language" content="en" />
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <title>$title</title>
+    <script type="text/javascript">
+        <!--
+        function toggleDump (dumpElement) {
+            var e = document.getElementById( dumpElement );
+            if (e.style.display == "none") {
+                e.style.display = "";
+            }
+            else {
+                e.style.display = "none";
+            }
+        }
+        -->
+    </script>
     <style type="text/css">
         body {
             font-family: "Bitstream Vera Sans", "Trebuchet MS", Verdana,
@@ -271,7 +180,11 @@ sub finalize_error {
             margin: 0px;
             padding: 0px;
         }
+        :link, :link:hover, :visited, :visited:hover {
+            color: #ddd;
+        }
         div.box {
+            position: relative;
             background-color: #ccc;
             border: 1px solid #aaa;
             padding: 4px;
@@ -301,6 +214,34 @@ sub finalize_error {
             margin: 4px;
             -moz-border-radius: 10px;
         }
+        code.error {
+            display: block;
+            margin: 1em 0;
+            overflow: auto;
+        }
+        div.name h1, div.error p {
+            margin: 0;
+        }
+        h2 {
+            margin-top: 0;
+            margin-bottom: 10px;
+            font-size: medium;
+            font-weight: bold;
+            text-decoration: underline;
+        }
+        h1 {
+            font-size: medium;
+            font-weight: normal;
+        }
+        /* from http://users.tkk.fi/~tkarvine/linux/doc/pre-wrap/pre-wrap-css3-mozilla-opera-ie.html */
+        /* Browser specific (not valid) styles to make preformatted text wrap */
+        pre { 
+            white-space: pre-wrap;       /* css-3 */
+            white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
+            white-space: -pre-wrap;      /* Opera 4-6 */
+            white-space: -o-pre-wrap;    /* Opera 7 */
+            word-wrap: break-word;       /* Internet Explorer 5.5+ */
+        }
     </style>
 </head>
 <body>
@@ -312,653 +253,293 @@ sub finalize_error {
 </body>
 </html>
 
-}
 
-=item $c->finalize_headers
+    # Trick IE
+    $c->res->{body} .= ( ' ' x 512 );
+
+    # Return 500
+    $c->res->status(500);
+}
 
-Finalize headers.
+=head2 $self->finalize_headers($c)
 
 =cut
 
 sub finalize_headers { }
 
-=item $c->finalize_output
-
-Finalize output.
+=head2 $self->finalize_read($c)
 
 =cut
 
-sub finalize_output { }
-
-=item $c->forward($command)
+sub finalize_read {
+    my ( $self, $c ) = @_;
 
-Forward processing to a private action or a method from a class.
-If you define a class without method it will default to process().
+    undef $self->{_prepared_read};
+}
 
-    $c->forward('/foo');
-    $c->forward('index');
-    $c->forward(qw/MyApp::Model::CDBI::Foo do_stuff/);
-    $c->forward('MyApp::View::TT');
+=head2 $self->finalize_uploads($c)
 
 =cut
 
-sub forward {
-    my $c       = shift;
-    my $command = shift;
-    unless ($command) {
-        $c->log->debug('Nothing to forward to') if $c->debug;
-        return 0;
-    }
-    my $caller    = caller(0);
-    my $namespace = '/';
-    if ( $command =~ /^\// ) {
-        $command =~ /^(.*)\/(\w+)$/;
-        $namespace = $1 || '/';
-        $command = $2;
-    }
-    else { $namespace = _class2prefix($caller) || '/' }
-    my $results = $c->get_action( $command, $namespace );
-    unless ( @{$results} ) {
-        my $class = $command;
-        if ( $class =~ /[^\w\:]/ ) {
-            $c->log->debug(qq/Couldn't forward to "$class"/) if $c->debug;
-            return 0;
-        }
-        my $method = shift || 'process';
-        if ( my $code = $class->can($method) ) {
-            $c->actions->{reverse}->{"$code"} = "$class->$method";
-            $results = [ [ [ $class, $code ] ] ];
-        }
-        else {
-            $c->log->debug(qq/Couldn't forward to "$class->$method"/)
-              if $c->debug;
-            return 0;
+sub finalize_uploads {
+    my ( $self, $c ) = @_;
+
+    if ( keys %{ $c->request->uploads } ) {
+        for my $key ( keys %{ $c->request->uploads } ) {
+            my $upload = $c->request->uploads->{$key};
+            unlink map { $_->tempname }
+              grep     { -e $_->tempname }
+              ref $upload eq 'ARRAY' ? @{$upload} : ($upload);
         }
     }
-    for my $result ( @{$results} ) {
-        $c->state( $c->execute( @{ $result->[0] } ) );
-    }
-    return $c->state;
 }
 
-=item $c->get_action( $action, $namespace )
-
-Get an action in a given namespace.
+=head2 $self->prepare_body($c)
 
 =cut
 
-sub get_action {
-    my ( $c, $action, $namespace ) = @_;
-    return [] unless $action;
-    $namespace ||= '';
-    if ($namespace) {
-        $namespace = '' if $namespace eq '/';
-        my $parent = $c->tree;
-        my @results;
-        my $result = $c->actions->{private}->{ $parent->getUID }->{$action};
-        push @results, [$result] if $result;
-        my $visitor = Tree::Simple::Visitor::FindByPath->new;
-        for my $part ( split '/', $namespace ) {
-            $visitor->setSearchPath($part);
-            $parent->accept($visitor);
-            my $child = $visitor->getResult;
-            my $uid   = $child->getUID if $child;
-            my $match = $c->actions->{private}->{$uid}->{$action} if $uid;
-            push @results, [$match] if $match;
-            $parent = $child if $child;
-        }
-        return \@results;
-    }
-    elsif ( my $p = $c->actions->{plain}->{$action} ) { return [ [$p] ] }
-    elsif ( my $r = $c->actions->{regex}->{$action} ) { return [ [$r] ] }
-    else {
-        for my $i ( 0 .. $#{ $c->actions->{compiled} } ) {
-            my $name  = $c->actions->{compiled}->[$i]->[0];
-            my $regex = $c->actions->{compiled}->[$i]->[1];
-            if ( $action =~ $regex ) {
-                my @snippets;
-                for my $i ( 1 .. 9 ) {
-                    no strict 'refs';
-                    last unless ${$i};
-                    push @snippets, ${$i};
-                }
-                return [ [ $c->actions->{regex}->{$name}, $name, \@snippets ] ];
-            }
-        }
-    }
-    return [];
-}
-
-=item $c->handler( $class, $r )
+sub prepare_body {
+    my ( $self, $c ) = @_;
 
-Handles the request.
+    $self->read_length( $c->request->header('Content-Length') || 0 );
+    my $type = $c->request->header('Content-Type');
 
-=cut
+    unless ( $c->request->{_body} ) {
+        $c->request->{_body} = HTTP::Body->new( $type, $self->read_length );
+    }
 
-sub handler {
-    my ( $class, $engine ) = @_;
-
-    # Always expect worst case!
-    my $status = -1;
-    eval {
-        my @stats = ();
-        my $handler = sub {
-            my $c = $class->prepare($engine);
-            $c->{stats} = \@stats;
-            my $action    = $c->req->action;
-            my $namespace = '';
-            $namespace = ( join( '/', @{ $c->req->args } ) || '/' )
-              if $action eq 'default';
-            unless ($namespace) {
-                if ( my $result = $c->get_action($action) ) {
-                    $namespace = _class2prefix( $result->[0]->[0]->[0] );
-                }
-            }
-            my $default = $action eq 'default' ? $namespace : undef;
-            my $results = $c->get_action( $action, $default );
-            $namespace ||= '/';
-            if ( @{$results} ) {
-                for my $begin ( @{ $c->get_action( 'begin', $namespace ) } ) {
-                    $c->state( $c->execute( @{ $begin->[0] } ) );
-                }
-                if ( my $action = $c->req->action ) {
-                    for my $result (
-                        @{ $c->get_action( $action, $default ) }[-1] )
-                    {
-                        $c->state( $c->execute( @{ $result->[0] } ) );
-                        last unless $default;
-                    }
-                }
-                for my $end ( reverse @{ $c->get_action( 'end', $namespace ) } )
-                {
-                    $c->state( $c->execute( @{ $end->[0] } ) );
-                }
-            }
-            else {
-                my $path  = $c->req->path;
-                my $error = $path
-                  ? qq/Unknown resource "$path"/
-                  : "No default action defined";
-                $c->log->error($error) if $c->debug;
-                $c->error($error);
-            }
-            return $c->finalize;
-        };
-        if ( $class->debug ) {
-            my $elapsed;
-            ( $elapsed, $status ) = $class->benchmark($handler);
-            $elapsed = sprintf '%f', $elapsed;
-            my $av = sprintf '%.3f', 1 / $elapsed;
-            my $t = Text::ASCIITable->new;
-            $t->setCols( 'Action', 'Time' );
-            $t->setColWidth( 'Action', 64, 1 );
-            $t->setColWidth( 'Time',   9,  1 );
-
-            for my $stat (@stats) {
-                $t->addRow( wrap( $stat->[0], 64 ), wrap( $stat->[1], 9 ) );
-            }
-            $class->log->info( "Request took $elapsed" . "s ($av/s)",
-                $t->draw );
+    if ( $self->read_length > 0 ) {
+        while ( my $buffer = $self->read($c) ) {
+            $c->prepare_body_chunk($buffer);
         }
-        else { $status = &$handler }
-    };
-    if ( my $error = $@ ) {
-        chomp $error;
-        $class->log->error(qq/Caught exception in engine "$error"/);
     }
-    $COUNT++;
-    return $status;
 }
 
-=item $c->prepare($r)
-
-Turns the engine-specific request( Apache, CGI ... )
-into a Catalyst context .
+=head2 $self->prepare_body_chunk($c)
 
 =cut
 
-sub prepare {
-    my ( $class, $r ) = @_;
-    my $c = bless {
-        request => Catalyst::Request->new(
-            {
-                arguments  => [],
-                cookies    => {},
-                headers    => HTTP::Headers->new,
-                parameters => {},
-                snippets   => [],
-                uploads    => {}
-            }
-        ),
-        response => Catalyst::Response->new(
-            { cookies => {}, headers => HTTP::Headers->new, status => 200 }
-        ),
-        stash => {},
-        state => 0
-    }, $class;
-    if ( $c->debug ) {
-        my $secs = time - $START || 1;
-        my $av = sprintf '%.3f', $COUNT / $secs;
-        $c->log->debug('**********************************');
-        $c->log->debug("* Request $COUNT ($av/s) [$$]");
-        $c->log->debug('**********************************');
-        $c->res->headers->header( 'X-Catalyst' => $Catalyst::VERSION );
-    }
-    $c->prepare_request($r);
-    $c->prepare_path;
-    $c->prepare_headers;
-    $c->prepare_cookies;
-    $c->prepare_connection;
-    my $method   = $c->req->method   || '';
-    my $path     = $c->req->path     || '';
-    my $hostname = $c->req->hostname || '';
-    my $address  = $c->req->address  || '';
-    $c->log->debug(qq/"$method" request for "$path" from $hostname($address)/)
-      if $c->debug;
-    $c->prepare_action;
-    $c->prepare_parameters;
-
-    if ( $c->debug && keys %{ $c->req->params } ) {
-        my $t = Text::ASCIITable->new;
-        $t->setCols( 'Key', 'Value' );
-        $t->setColWidth( 'Key',   37, 1 );
-        $t->setColWidth( 'Value', 36, 1 );
-        for my $key ( keys %{ $c->req->params } ) {
-            my $value = $c->req->params->{$key} || '';
-            $t->addRow( wrap( $key, 37 ), wrap( $value, 36 ) );
-        }
-        $c->log->debug( 'Parameters are', $t->draw );
-    }
-    $c->prepare_uploads;
-    return $c;
-}
+sub prepare_body_chunk {
+    my ( $self, $c, $chunk ) = @_;
 
-=item $c->prepare_action
+    $c->request->{_body}->add($chunk);
+}
 
-Prepare action.
+=head2 $self->prepare_body_parameters($c)
 
 =cut
 
-sub prepare_action {
-    my $c    = shift;
-    my $path = $c->req->path;
-    my @path = split /\//, $c->req->path;
-    $c->req->args( \my @args );
-    while (@path) {
-        $path = join '/', @path;
-        if ( my $result = ${ $c->get_action($path) }[0] ) {
-
-            # It's a regex
-            if ($#$result) {
-                my $match    = $result->[1];
-                my @snippets = @{ $result->[2] };
-                $c->log->debug(
-                    qq/Requested action is "$path" and matched "$match"/)
-                  if $c->debug;
-                $c->log->debug(
-                    'Snippets are "' . join( ' ', @snippets ) . '"' )
-                  if ( $c->debug && @snippets );
-                $c->req->action($match);
-                $c->req->snippets( \@snippets );
-            }
-            else {
-                $c->req->action($path);
-                $c->log->debug(qq/Requested action is "$path"/) if $c->debug;
-            }
-            $c->req->match($path);
-            last;
-        }
-        unshift @args, pop @path;
-    }
-    unless ( $c->req->action ) {
-        $c->req->action('default');
-        $c->req->match('');
-    }
-    $c->log->debug( 'Arguments are "' . join( '/', @args ) . '"' )
-      if ( $c->debug && @args );
+sub prepare_body_parameters {
+    my ( $self, $c ) = @_;
+    $c->request->body_parameters( $c->request->{_body}->param );
 }
 
-=item $c->prepare_connection
-
-Prepare connection.
+=head2 $self->prepare_connection($c)
 
 =cut
 
 sub prepare_connection { }
 
-=item $c->prepare_cookies
-
-Prepare cookies.
+=head2 $self->prepare_cookies($c)
 
 =cut
 
 sub prepare_cookies {
-    my $c = shift;
+    my ( $self, $c ) = @_;
 
     if ( my $header = $c->request->header('Cookie') ) {
         $c->req->cookies( { CGI::Cookie->parse($header) } );
     }
 }
 
-=item $c->prepare_headers
-
-Prepare headers.
+=head2 $self->prepare_headers($c)
 
 =cut
 
 sub prepare_headers { }
 
-=item $c->prepare_parameters
-
-Prepare parameters.
+=head2 $self->prepare_parameters($c)
 
 =cut
 
-sub prepare_parameters { }
+sub prepare_parameters {
+    my ( $self, $c ) = @_;
 
-=item $c->prepare_path
+    # We copy, no references
+    while ( my ( $name, $param ) = each %{ $c->request->query_parameters } ) {
+        $param = ref $param eq 'ARRAY' ? [ @{$param} ] : $param;
+        $c->request->parameters->{$name} = $param;
+    }
+
+    # Merge query and body parameters
+    while ( my ( $name, $param ) = each %{ $c->request->body_parameters } ) {
+        $param = ref $param eq 'ARRAY' ? [ @{$param} ] : $param;
+        if ( my $old_param = $c->request->parameters->{$name} ) {
+            if ( ref $old_param eq 'ARRAY' ) {
+                push @{ $c->request->parameters->{$name} },
+                  ref $param eq 'ARRAY' ? @$param : $param;
+            }
+            else { $c->request->parameters->{$name} = [ $old_param, $param ] }
+        }
+        else { $c->request->parameters->{$name} = $param }
+    }
+}
 
-Prepare path and base.
+=head2 $self->prepare_path($c)
 
 =cut
 
 sub prepare_path { }
 
-=item $c->prepare_request
+=head2 $self->prepare_request($c)
 
-Prepare the engine request.
+=head2 $self->prepare_query_parameters($c)
 
 =cut
 
-sub prepare_request { }
+sub prepare_query_parameters {
+    my ( $self, $c, $query_string ) = @_;
 
-=item $c->prepare_uploads
+    # replace semi-colons
+    $query_string =~ s/;/&/g;
 
-Prepare uploads.
+    my $u = URI->new( '', 'http' );
+    $u->query($query_string);
+    for my $key ( $u->query_param ) {
+        my @vals = $u->query_param($key);
+        $c->request->query_parameters->{$key} = @vals > 1 ? [@vals] : $vals[0];
+    }
+}
+
+=head2 $self->prepare_read($c)
 
 =cut
 
-sub prepare_uploads { }
+sub prepare_read {
+    my ( $self, $c ) = @_;
 
-=item $c->run
+    # Reset the read position
+    $self->read_position(0);
+}
 
-Starts the engine.
+=head2 $self->prepare_request(@arguments)
 
 =cut
 
-sub run { }
-
-=item $c->request
-
-=item $c->req
+sub prepare_request { }
 
-Returns a C<Catalyst::Request> object.
+=head2 $self->prepare_uploads($c)
 
-    my $req = $c->req;
+=cut
 
-=item $c->response
+sub prepare_uploads {
+    my ( $self, $c ) = @_;
+    my $uploads = $c->request->{_body}->upload;
+    for my $name ( keys %$uploads ) {
+        my $files = $uploads->{$name};
+        $files = ref $files eq 'ARRAY' ? $files : [$files];
+        my @uploads;
+        for my $upload (@$files) {
+            my $u = Catalyst::Request::Upload->new;
+            $u->headers( HTTP::Headers->new( %{ $upload->{headers} } ) );
+            $u->type( $u->headers->content_type );
+            $u->tempname( $upload->{tempname} );
+            $u->size( $upload->{size} );
+            $u->filename( $upload->{filename} );
+            push @uploads, $u;
+        }
+        $c->request->uploads->{$name} = @uploads > 1 ? \@uploads : $uploads[0];
 
-=item $c->res
+        # support access to the filename as a normal param
+        my @filenames = map { $_->{filename} } @uploads;
+        $c->request->parameters->{$name} =
+          @filenames > 1 ? \@filenames : $filenames[0];
+    }
+}
 
-Returns a C<Catalyst::Response> object.
+=head2 $self->prepare_write($c)
 
-    my $res = $c->res;
+=cut
 
-=item $c->set_action( $action, $code, $namespace, $attrs )
+sub prepare_write { }
 
-Set an action in a given namespace.
+=head2 $self->read($c, [$maxlength])
 
 =cut
 
-sub set_action {
-    my ( $c, $method, $code, $namespace, $attrs ) = @_;
+sub read {
+    my ( $self, $c, $maxlength ) = @_;
 
-    my $prefix = _class2prefix($namespace) || '';
-    my %flags;
-
-    for my $attr ( @{$attrs} ) {
-        if    ( $attr =~ /^(Local|Relative)$/ )        { $flags{local}++ }
-        elsif ( $attr =~ /^(Global|Absolute)$/ )       { $flags{global}++ }
-        elsif ( $attr =~ /^Path\((.+)\)$/i )           { $flags{path} = $1 }
-        elsif ( $attr =~ /^Private$/i )                { $flags{private}++ }
-        elsif ( $attr =~ /^(Regex|Regexp)\((.+)\)$/i ) { $flags{regex} = $2 }
+    unless ( $self->{_prepared_read} ) {
+        $self->prepare_read($c);
+        $self->{_prepared_read} = 1;
     }
 
-    return unless keys %flags;
-
-    my $parent  = $c->tree;
-    my $visitor = Tree::Simple::Visitor::FindByPath->new;
-    for my $part ( split '/', $prefix ) {
-        $visitor->setSearchPath($part);
-        $parent->accept($visitor);
-        my $child = $visitor->getResult;
-        unless ($child) {
-            $child = $parent->addChild( Tree::Simple->new($part) );
-            $visitor->setSearchPath($part);
-            $parent->accept($visitor);
-            $child = $visitor->getResult;
-        }
-        $parent = $child;
-    }
-    my $uid = $parent->getUID;
-    $c->actions->{private}->{$uid}->{$method} = [ $namespace, $code ];
-    my $forward = $prefix ? "$prefix/$method" : $method;
-
-    if ( $flags{path} ) {
-        $flags{path} =~ s/^\w+//;
-        $flags{path} =~ s/\w+$//;
-        if ( $flags{path} =~ /^'(.*)'$/ ) { $flags{path} = $1 }
-        if ( $flags{path} =~ /^"(.*)"$/ ) { $flags{path} = $1 }
-    }
-    if ( $flags{regex} ) {
-        $flags{regex} =~ s/^\w+//;
-        $flags{regex} =~ s/\w+$//;
-        if ( $flags{regex} =~ /^'(.*)'$/ ) { $flags{regex} = $1 }
-        if ( $flags{regex} =~ /^"(.*)"$/ ) { $flags{regex} = $1 }
-    }
+    my $remaining = $self->read_length - $self->read_position;
+    $maxlength ||= $CHUNKSIZE;
 
-    my $reverse = $prefix ? "$prefix/$method" : $method;
+    # Are we done reading?
+    if ( $remaining <= 0 ) {
+        $self->finalize_read($c);
+        return;
+    }
 
-    if ( $flags{local} || $flags{global} || $flags{path} ) {
-        my $path = $flags{path} || $method;
-        my $absolute = 0;
-        if ( $path =~ /^\/(.+)/ ) {
-            $path     = $1;
-            $absolute = 1;
-        }
-        $absolute = 1 if $flags{global};
-        my $name = $absolute ? $path : "$prefix/$path";
-        $c->actions->{plain}->{$name} = [ $namespace, $code ];
+    my $readlen = ( $remaining > $maxlength ) ? $maxlength : $remaining;
+    my $rc = $self->read_chunk( $c, my $buffer, $readlen );
+    if ( defined $rc ) {
+        $self->read_position( $self->read_position + $rc );
+        return $buffer;
     }
-    if ( my $regex = $flags{regex} ) {
-        push @{ $c->actions->{compiled} }, [ $regex, qr#$regex# ];
-        $c->actions->{regex}->{$regex} = [ $namespace, $code ];
+    else {
+        Catalyst::Exception->throw(
+            message => "Unknown error reading input: $!" );
     }
-
-    $c->actions->{reverse}->{"$code"} = $reverse;
 }
 
-=item $class->setup
-
-Setup.
+=head2 $self->read_chunk($c, $buffer, $length)
 
-    MyApp->setup;
+Each engine inplements read_chunk as its preferred way of reading a chunk
+of data.
 
 =cut
 
-sub setup {
-    my $self = shift;
-    $self->setup_components;
-    if ( $self->debug ) {
-        my $name = $self->config->{name} || 'Application';
-        $self->log->info("$name powered by Catalyst $Catalyst::VERSION");
-    }
-}
-
-=item $class->setup_actions($component)
+sub read_chunk { }
 
-Setup actions for a component.
+=head2 $self->read_length
 
-=cut
+The length of input data to be read.  This is obtained from the Content-Length
+header.
 
-sub setup_actions {
-    my ( $self, $comp ) = @_;
-    $comp = ref $comp || $comp;
-    for my $action ( @{ $comp->_cache } ) {
-        my ( $code, $attrs ) = @{$action};
-        my $name = '';
-        no strict 'refs';
-        my @cache = ( $comp, @{"$comp\::ISA"} );
-        my %namespaces;
-        while ( my $namespace = shift @cache ) {
-            $namespaces{$namespace}++;
-            for my $isa ( @{"$comp\::ISA"} ) {
-                next if $namespaces{$isa};
-                push @cache, $isa;
-                $namespaces{$isa}++;
-            }
-        }
-        for my $namespace ( keys %namespaces ) {
-            for my $sym ( values %{ $namespace . '::' } ) {
-                if ( *{$sym}{CODE} && *{$sym}{CODE} == $code ) {
-                    $name = *{$sym}{NAME};
-                    $self->set_action( $name, $code, $comp, $attrs );
-                    last;
-                }
-            }
-        }
-    }
-}
+=head2 $self->read_position
 
-=item $class->setup_components
+The amount of input data that has already been read.
 
-Setup components.
+=head2 $self->run($c)
 
 =cut
 
-sub setup_components {
-    my $self = shift;
-
-    # Components
-    my $class = ref $self || $self;
-    eval <<"";
-        package $class;
-        import Module::Pluggable::Fast
-          name   => '_components',
-          search => [
-            '$class\::Controller', '$class\::C',
-            '$class\::Model',      '$class\::M',
-            '$class\::View',       '$class\::V'
-          ];
-
-    if ( my $error = $@ ) {
-        chomp $error;
-        $self->log->error(
-            qq/Couldn't initialize "Module::Pluggable::Fast", "$error"/);
-    }
-    $self->setup_actions($self);
-    $self->components( {} );
-    for my $comp ( $self->_components($self) ) {
-        $self->components->{ ref $comp } = $comp;
-        $self->setup_actions($comp);
-    }
-    my $t = Text::ASCIITable->new({ hide_HeadRow => 1, hide_HeadLine => 1});
-    $t->setCols('Class');
-    $t->setColWidth( 'Class', 75, 1 );
-    $t->addRow( wrap( $_, 75 ) ) for keys %{ $self->components };
-    $self->log->debug( 'Loaded components', $t->draw )
-      if ( @{ $t->{tbl_rows} } && $self->debug );
-    my $actions  = $self->actions;
-    my $privates = Text::ASCIITable->new;
-    $privates->setCols( 'Private', 'Class', 'Code' );
-    $privates->setColWidth( 'Private', 28, 1 );
-    $privates->setColWidth( 'Class',   28, 1 );
-    $privates->setColWidth( 'Code',    14, 1 );
-    my $walker = sub {
-        my ( $walker, $parent, $prefix ) = @_;
-        $prefix .= $parent->getNodeValue || '';
-        $prefix .= '/' unless $prefix =~ /\/$/;
-        my $uid = $parent->getUID;
-        for my $action ( keys %{ $actions->{private}->{$uid} } ) {
-            my ( $class, $code ) = @{ $actions->{private}->{$uid}->{$action} };
-            $privates->addRow(
-                wrap( "$prefix$action", 28 ),
-                wrap( $class,           28 ),
-                wrap( $code,            14 )
-            );
-        }
-        $walker->( $walker, $_, $prefix ) for $parent->getAllChildren;
-    };
-    $walker->( $walker, $self->tree, '' );
-    $self->log->debug( 'Loaded private actions', $privates->draw )
-      if ( @{ $privates->{tbl_rows} } && $self->debug );
-    my $publics = Text::ASCIITable->new;
-    $publics->setCols( 'Public', 'Private' );
-    $publics->setColWidth( 'Public',  37, 1 );
-    $publics->setColWidth( 'Private', 36, 1 );
-
-    for my $plain ( sort keys %{ $actions->{plain} } ) {
-        my ( $class, $code ) = @{ $actions->{plain}->{$plain} };
-        $publics->addRow( wrap( "/$plain", 37 ),
-            wrap( $self->actions->{reverse}->{$code} || $code, 36 ) );
-    }
-    $self->log->debug( 'Loaded public actions', $publics->draw )
-      if ( @{ $publics->{tbl_rows} } && $self->debug );
-    my $regexes = Text::ASCIITable->new;
-    $regexes->setCols( 'Regex', 'Private' );
-    $regexes->setColWidth( 'Regex',   37, 1 );
-    $regexes->setColWidth( 'Private', 36, 1 );
-    for my $regex ( sort keys %{ $actions->{regex} } ) {
-        my ( $class, $code ) = @{ $actions->{regex}->{$regex} };
-        $regexes->addRow( wrap( $regex, 37 ),
-            wrap( $self->actions->{reverse}->{$class} || $class, 36 ) );
-    }
-    $self->log->debug( 'Loaded regex actions', $regexes->draw )
-      if ( @{ $regexes->{tbl_rows} } && $self->debug );
-}
-
-=item $c->stash
-
-Returns a hashref containing all your data.
+sub run { }
 
-    $c->stash->{foo} ||= 'yada';
-    print $c->stash->{foo};
+=head2 $self->write($c, $buffer)
 
 =cut
 
-sub stash {
-    my $self = shift;
-    if ( $_[0] ) {
-        my $stash = $_[1] ? {@_} : $_[0];
-        while ( my ( $key, $val ) = each %$stash ) {
-            $self->{stash}->{$key} = $val;
-        }
-    }
-    return $self->{stash};
-}
+sub write {
+    my ( $self, $c, $buffer ) = @_;
 
-sub _prefix {
-    my ( $class, $name ) = @_;
-    my $prefix = _class2prefix($class);
-    $name = "$prefix/$name" if $prefix;
-    return $name;
-}
-
-sub _class2prefix {
-    my $class = shift || '';
-    my $prefix;
-    if ( $class =~ /^.*::([MVC]|Model|View|Controller)?::(.*)$/ ) {
-        $prefix = lc $2;
-        $prefix =~ s/\:\:/\//g;
+    unless ( $self->{_prepared_write} ) {
+        $self->prepare_write($c);
+        $self->{_prepared_write} = 1;
     }
-    return $prefix;
+
+    print STDOUT $buffer;
 }
 
-=back
+=head1 AUTHORS
 
-=head1 AUTHOR
+Sebastian Riedel, <sri@cpan.org>
 
-Sebastian Riedel, C<sri@cpan.org>
+Andy Grundman, <andy@hybridized.org>
 
 =head1 COPYRIGHT