use HTML::Entities;
use HTTP::Body;
use HTTP::Headers;
+use URI::QueryParam;
# input position and length
-__PACKAGE__->mk_accessors( qw/read_position read_length/ );
+__PACKAGE__->mk_accessors(qw/read_position read_length/);
# Stringify to class
use overload '""' => sub { return ref shift }, fallback => 1;
+# Amount of data to read from input on each pass
+our $CHUNKSIZE = 4096;
+
=head1 NAME
Catalyst::Engine - The Catalyst Engine
=head1 METHODS
-=over 4
-
-=item $self->finalize_output
-
-<obsolete>, see finalize_body
-=item $self->finalize_body($c)
+=head2 $self->finalize_body($c)
Finalize body. Prints the response output.
sub finalize_body {
my ( $self, $c ) = @_;
-
- $self->write( $c, $c->response->output );
+ 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 );
+ }
+ $c->response->body->close();
+ }
+ else {
+ $self->write( $c, $c->response->body );
+ }
}
-=item $self->finalize_cookies($c)
+=head2 $self->finalize_cookies($c)
+
+Create CGI::Cookies from $c->res->cookies, and set them as response headers.
=cut
push @cookies, $cookie->as_string;
}
- if (@cookies) {
- $c->res->headers->push_header( 'Set-Cookie' => join ',', @cookies );
+ for my $cookie (@cookies) {
+ $c->res->headers->push_header( 'Set-Cookie' => $cookie );
}
}
-=item $self->finalize_error($c)
+=head2 $self->finalize_error($c)
+
+Output an apropriate error message, called if there's an error in $c
+after the dispatch has finished. Will output debug messages if Catalyst
+is in debug mode, or a `please come back later` message otherwise.
=cut
sub finalize_error {
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 );
# For pretty dumps
local $Data::Dumper::Terse = 1;
- $error = join '',
- map { '<code class="error">' . encode_entities($_) . '</code>' }
- @{ $c->error };
+ $error = join '', map {
+ '<p><code class="error">'
+ . encode_entities($_)
+ . '</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};
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;
<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 piĆ¹ successivamente
+(dk) Venligst prov igen senere
+(pl) Prosze sprobowac pozniej
</pre>
$name = '';
}
$c->res->body( <<"" );
-<html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
+ <meta http-equiv="Content-Language" content="en" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>$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,
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;
display: block;
margin: 1em 0;
overflow: auto;
- white-space: pre;
+ }
+ 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>
</html>
+
+ # Trick IE
+ $c->res->{body} .= ( ' ' x 512 );
+
+ # Return 500
+ $c->res->status(500);
}
-=item $self->finalize_headers($c)
+=head2 $self->finalize_headers($c)
+
+Abstract method, allows engines to write headers to response
=cut
sub finalize_headers { }
-=item $self->finalize_read($c)
+=head2 $self->finalize_read($c)
=cut
sub finalize_read {
my ( $self, $c ) = @_;
-
+
undef $self->{_prepared_read};
}
-=item $self->finalize_uploads($c)
+=head2 $self->finalize_uploads($c)
+
+Clean up after uploads, deleting temp files.
=cut
}
}
-=item $self->prepare_body($c)
+=head2 $self->prepare_body($c)
+
+sets up the L<Catalyst::Request> object body using L<HTTP::Body>
=cut
unless ( $c->request->{_body} ) {
$c->request->{_body} = HTTP::Body->new( $type, $self->read_length );
}
-
+
if ( $self->read_length > 0 ) {
- while ( my $buffer = $self->read( $c ) ) {
- $c->request->{_body}->add( $buffer );
+ while ( my $buffer = $self->read($c) ) {
+ $c->prepare_body_chunk($buffer);
+ }
+
+ # paranoia against wrong Content-Length header
+ my $remaining = $self->read_length - $self->read_position;
+ if ($remaining > 0) {
+ $self->finalize_read($c);
+ Catalyst::Exception->throw("Wrong Content-Length value: ". $self->read_length);
}
}
}
-=item $self->prepare_body_parameters($c)
+=head2 $self->prepare_body_chunk($c)
+
+Add a chunk to the request body.
+
+=cut
+
+sub prepare_body_chunk {
+ my ( $self, $c, $chunk ) = @_;
+
+ $c->request->{_body}->add($chunk);
+}
+
+=head2 $self->prepare_body_parameters($c)
+
+Sets up parameters from body.
=cut
$c->request->body_parameters( $c->request->{_body}->param );
}
-=item $self->prepare_connection($c)
+=head2 $self->prepare_connection($c)
+
+Abstract method implemented in engines.
=cut
sub prepare_connection { }
-=item $self->prepare_cookies($c)
+=head2 $self->prepare_cookies($c)
+
+Parse cookies from header. Sets a L<CGI::Cookie> object.
=cut
}
}
-=item $self->prepare_headers($c)
+=head2 $self->prepare_headers($c)
=cut
sub prepare_headers { }
-=item $self->prepare_parameters($c)
+=head2 $self->prepare_parameters($c)
+
+sets up parameters from query and post parameters.
=cut
}
}
-=item $self->prepare_path($c)
+=head2 $self->prepare_path($c)
+
+abstract method, implemented by engines.
=cut
sub prepare_path { }
-=item $self->prepare_request($c)
+=head2 $self->prepare_request($c)
+
+=head2 $self->prepare_query_parameters($c)
-=item $self->prepare_query_parameters($c)
+process the query string and extract query parameters.
=cut
-sub prepare_query_parameters { }
+sub prepare_query_parameters {
+ my ( $self, $c, $query_string ) = @_;
+
+ # replace semi-colons
+ $query_string =~ s/;/&/g;
+
+ 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];
+ }
+}
-=item $self->prepare_read($c)
+=head2 $self->prepare_read($c)
+
+prepare to read from the engine.
=cut
sub prepare_read {
my ( $self, $c ) = @_;
-
+
# Reset the read position
- $self->read_position( 0 );
+ $self->read_position(0);
}
-=item $self->prepare_request(@arguments)
+=head2 $self->prepare_request(@arguments)
+
+Populate the context object from the request object.
=cut
sub prepare_request { }
-=item $self->prepare_uploads($c)
+=head2 $self->prepare_uploads($c)
=cut
push @uploads, $u;
}
$c->request->uploads->{$name} = @uploads > 1 ? \@uploads : $uploads[0];
+
+ # support access to the filename as a normal param
+ my @filenames = map { $_->{filename} } @uploads;
+ $c->request->parameters->{$name} =
+ @filenames > 1 ? \@filenames : $filenames[0];
}
}
-=item $self->prepare_write($c)
+=head2 $self->prepare_write($c)
+
+Abstract method. Implemented by the engines.
=cut
sub prepare_write { }
-=item $self->read($c, [$maxlength])
+=head2 $self->read($c, [$maxlength])
=cut
sub read {
my ( $self, $c, $maxlength ) = @_;
-
+
unless ( $self->{_prepared_read} ) {
- $self->prepare_read( $c );
+ $self->prepare_read($c);
$self->{_prepared_read} = 1;
}
-
+
my $remaining = $self->read_length - $self->read_position;
- $maxlength ||= $self->read_length;
-
+ $maxlength ||= $CHUNKSIZE;
+
# Are we done reading?
if ( $remaining <= 0 ) {
- $self->finalize_read( $c );
+ $self->finalize_read($c);
return;
}
return $buffer;
}
else {
- Catalyst::Exception->throw(
- message => "Unknown error reading input: $!"
- );
+ Catalyst::Exception->throw(
+ message => "Unknown error reading input: $!" );
}
}
-=item $self->read_chunk($c, $buffer, $length)
+=head2 $self->read_chunk($c, $buffer, $length)
Each engine inplements read_chunk as its preferred way of reading a chunk
of data.
sub read_chunk { }
-=item $self->read_length
+=head2 $self->read_length
The length of input data to be read. This is obtained from the Content-Length
header.
-=item $self->read_position
+=head2 $self->read_position
The amount of input data that has already been read.
-=item $self->run($c)
+=head2 $self->run($c)
+
+Start the engine. Implemented by the various engine classes.
=cut
sub run { }
-=item $self->write($c, $buffer)
+=head2 $self->write($c, $buffer)
+
+Writes the buffer to the client. Can only be called once for a request.
=cut
sub write {
my ( $self, $c, $buffer ) = @_;
-
+
unless ( $self->{_prepared_write} ) {
- $self->prepare_write( $c );
+ $self->prepare_write($c);
$self->{_prepared_write} = 1;
}
-
- my $handle = $c->response->handle;
-
- print $handle $buffer;
+
+ print STDOUT $buffer;
}
-=back
+=head2 $self->finalize_output
+
+<obsolete>, see finalize_body
=head1 AUTHORS