package Catalyst::Engine::HTTP;
-use strict;
-use base 'Catalyst::Engine::CGI';
+use Moose;
+extends 'Catalyst::Engine::CGI';
+
use Data::Dump qw(dump);
use Errno 'EWOULDBLOCK';
use HTTP::Date ();
use HTTP::Headers;
use HTTP::Status;
-use NEXT;
use Socket;
use IO::Socket::INET ();
use IO::Select ();
require Catalyst::Engine::HTTP::Restarter;
require Catalyst::Engine::HTTP::Restarter::Watcher;
-sub CHUNKSIZE () { 64 * 1024 }
-
-sub DEBUG () { $ENV{CATALYST_HTTP_DEBUG} || 0 }
+use constant CHUNKSIZE => 64 * 1024;
+use constant DEBUG => $ENV{CATALYST_HTTP_DEBUG} || 0;
=head1 NAME
my $protocol = $c->request->protocol;
my $status = $c->response->status;
my $message = status_message($status);
-
+ my $res_headers = $c->response->headers;
+
my @headers;
push @headers, "$protocol $status $message";
-
- $c->response->headers->header( Date => HTTP::Date::time2str(time) );
- $c->response->headers->header( Connection => 'close' );
- $c->response->headers->header( Status => $status );
-
- push @headers, $c->response->headers->as_string("\x0D\x0A");
-
+
+ $res_headers->header( Date => HTTP::Date::time2str(time) );
+ $res_headers->header( Status => $status );
+
+ # Should we keep the connection open?
+ my $connection = $c->request->header('Connection');
+ if ( $self->{options}->{keepalive}
+ && $connection
+ && $connection =~ /^keep-alive$/i
+ ) {
+ $res_headers->header( Connection => 'keep-alive' );
+ $self->{_keepalive} = 1;
+ }
+ else {
+ $res_headers->header( Connection => 'close' );
+ }
+
+ push @headers, $res_headers->as_string("\x0D\x0A");
+
# Buffer the headers so they are sent with the first write() call
# This reduces the number of TCP packets we are sending
$self->{_header_buf} = join("\x0D\x0A", @headers, '');
=cut
-sub finalize_read {
- my ( $self, $c ) = @_;
-
+around finalize_read => sub {
# Never ever remove this, it would result in random length output
# streams if STDIN eq STDOUT (like in the HTTP engine)
*STDIN->blocking(1);
-
- return $self->NEXT::finalize_read($c);
-}
+ shift->(@_);
+};
=head2 $self->prepare_read($c)
=cut
-sub prepare_read {
- my ( $self, $c ) = @_;
-
+around prepare_read => sub {
# Set the input handle to non-blocking
*STDIN->blocking(0);
-
- return $self->NEXT::prepare_read($c);
-}
+ shift->(@_);
+};
=head2 $self->read_chunk($c, $buffer, $length)
=head2 $self->write($c, $buffer)
-Writes the buffer to the client. Can only be called once for a request.
+Writes the buffer to the client.
=cut
-sub write {
+around write => sub {
+ my $orig = shift;
my ( $self, $c, $buffer ) = @_;
-
- # Avoid 'print() on closed filehandle Remote' warnings when using IE
- return unless *STDOUT->opened();
-
- my $ret;
-
- # Prepend the headers if they have not yet been sent
- if ( my $headers = delete $self->{_header_buf} ) {
- DEBUG && warn "write: Wrote headers and first chunk (" . length($headers . $buffer) . " bytes)\n";
- $ret = $self->NEXT::write( $c, $headers . $buffer );
- }
- else {
- DEBUG && warn "write: Wrote chunk (" . length($buffer) . " bytes)\n";
- $ret = $self->NEXT::write( $c, $buffer );
+
+ # Avoid 'print() on closed filehandle Remote' warnings when using IE
+ return unless *STDOUT->opened();
+
+ # Prepend the headers if they have not yet been sent
+ if ( my $headers = delete $self->{_header_buf} ) {
+ $buffer = $headers . $buffer;
}
-
- if ( !$ret ) {
+
+ my $ret = $self->$orig($c, $buffer);
+
+ if ( !defined $ret ) {
$self->{_write_error} = $!;
+ DEBUG && warn "write: Failed to write response ($!)\n";
}
-
+ else {
+ DEBUG && warn "write: Wrote response ($ret bytes)\n";
+ }
+
return $ret;
-}
+};
=head2 run
if ($options->{background}) {
my $child = fork;
die "Can't fork: $!" unless defined($child);
- exit if $child;
+ return $child if $child;
}
my $restart = 0;
}
my $pid = undef;
-
+
# Ignore broken pipes as an HTTP server should
local $SIG{PIPE} = 'IGNORE';
-
+
+ # Restart on HUP
+ local $SIG{HUP} = sub {
+ $restart = 1;
+ warn "Restarting server on SIGHUP...\n";
+ };
+
LISTEN:
while ( !$restart ) {
- while ( accept( Remote, $daemon ) ) {
+ while ( accept( Remote, $daemon ) ) {
DEBUG && warn "New connection\n";
select Remote;
Remote->blocking(1);
-
- # Read until we see a newline
+
+ # Read until we see all headers
$self->{inputbuf} = '';
-
- while (1) {
- my $read = sysread Remote, my $buf, CHUNKSIZE;
-
- if ( !$read ) {
- DEBUG && warn "EOF or error: $!\n";
- next LISTEN;
- }
-
- DEBUG && warn "Read $read bytes\n";
- $self->{inputbuf} .= $buf;
- last if $self->{inputbuf} =~ /(\x0D\x0A?|\x0A\x0D?)/s;
+
+ if ( !$self->_read_headers ) {
+ # Error reading, give up
+ close Remote;
+ next LISTEN;
}
my ( $method, $uri, $protocol ) = $self->_parse_request_line;
-
+
DEBUG && warn "Parsed request: $method $uri $protocol\n";
-
next unless $method;
unless ( uc($method) eq 'RESTART' ) {
# Fork
- if ( $options->{fork} ) { next if $pid = fork }
+ if ( $options->{fork} ) {
+ if ( $pid = fork ) {
+ DEBUG && warn "Forked child $pid\n";
+ next;
+ }
+ }
$self->_handler( $class, $port, $method, $uri, $protocol );
if ( my $error = delete $self->{_write_error} ) {
- DEBUG && warn "Write error: $error\n";
close Remote;
- next LISTEN;
+
+ if ( !defined $pid ) {
+ next LISTEN;
+ }
}
- $daemon->close if defined $pid;
+ if ( defined $pid ) {
+ # Child process, close connection and exit
+ DEBUG && warn "Child process exiting\n";
+ $daemon->close;
+ exit;
+ }
}
else {
my $sockdata = $self->_socket_data( \*Remote );
last;
}
}
-
- exit if defined $pid;
}
continue {
close Remote;
use Config;
$ENV{PERL5LIB} .= join $Config{path_sep}, @INC;
- exec $^X . ' "' . $0 . '" ' . join( ' ', @{ $options->{argv} } );
+ exec $^X, $0, @{ $options->{argv} };
}
exit;
$sel->add( \*STDIN );
REQUEST:
- my ( $path, $query_string ) = split /\?/, $uri, 2;
-
- # Initialize CGI environment
- local %ENV = (
- PATH_INFO => $path || '',
- QUERY_STRING => $query_string || '',
- REMOTE_ADDR => $sockdata->{peeraddr},
- REMOTE_HOST => $sockdata->{peername},
- REQUEST_METHOD => $method || '',
- SERVER_NAME => $sockdata->{localname},
- SERVER_PORT => $port,
- SERVER_PROTOCOL => "HTTP/$protocol",
- %copy_of_env,
- );
-
- # Parse headers
- if ( $protocol >= 1 ) {
- $self->_parse_headers;
- }
+ while (1) {
+ my ( $path, $query_string ) = split /\?/, $uri, 2;
+
+ # Initialize CGI environment
+ local %ENV = (
+ PATH_INFO => $path || '',
+ QUERY_STRING => $query_string || '',
+ REMOTE_ADDR => $sockdata->{peeraddr},
+ REMOTE_HOST => $sockdata->{peername},
+ REQUEST_METHOD => $method || '',
+ SERVER_NAME => $sockdata->{localname},
+ SERVER_PORT => $port,
+ SERVER_PROTOCOL => "HTTP/$protocol",
+ %copy_of_env,
+ );
+
+ # Parse headers
+ if ( $protocol >= 1 ) {
+ $self->_parse_headers;
+ }
- # Pass flow control to Catalyst
- $class->handle_request;
+ # Pass flow control to Catalyst
+ $class->handle_request;
- DEBUG && warn "Request done\n";
+ DEBUG && warn "Request done\n";
+
+ # Allow keepalive requests, this is a hack but we'll support it until
+ # the next major release.
+ if ( delete $self->{_keepalive} ) {
+
+ DEBUG && warn "Reusing previous connection for keep-alive request\n";
+
+ if ( $sel->can_read(1) ) {
+ if ( !$self->_read_headers ) {
+ # Error reading, give up
+ last REQUEST;
+ }
+
+ ( $method, $uri, $protocol ) = $self->_parse_request_line;
+
+ DEBUG && warn "Parsed request: $method $uri $protocol\n";
+
+ # Force HTTP/1.0
+ $protocol = '1.0';
+
+ next REQUEST;
+ }
+
+ DEBUG && warn "No keep-alive request within 1 second\n";
+ }
+
+ last REQUEST;
+ }
- # XXX: We used to have a hack for keep-alive here but keep-alive
- # has no place in a single-tasking server like this. Use HTTP::POE
- # if you want keep-alive.
+ DEBUG && warn "Closing connection\n";
close Remote;
}
+sub _read_headers {
+ my $self = shift;
+
+ while (1) {
+ my $read = sysread Remote, my $buf, CHUNKSIZE;
+
+ if ( !defined $read ) {
+ next if $! == EWOULDBLOCK;
+ DEBUG && warn "Error reading headers: $!\n";
+ return;
+ } elsif ( $read == 0 ) {
+ DEBUG && warn "EOF\n";
+ return;
+ }
+
+ DEBUG && warn "Read $read bytes\n";
+ $self->{inputbuf} .= $buf;
+ last if $self->{inputbuf} =~ /(\x0D\x0A?\x0D\x0A?|\x0A\x0D?\x0A\x0D?)/s;
+ }
+
+ return 1;
+}
+
sub _parse_request_line {
my $self = shift;
- # Parse request line
+ # Parse request line
if ( $self->{inputbuf} !~ s/^(\w+)[ \t]+(\S+)(?:[ \t]+(HTTP\/\d+\.\d+))?[^\012]*\012// ) {
return ();
}
-
+
my $method = $1;
my $uri = $2;
my $proto = $3 || 'HTTP/0.9';
-
+
return ( $method, $uri, $proto );
}
sub _parse_headers {
my $self = shift;
-
+
# Copy the buffer for header parsing, and remove the header block
# from the content buffer.
my $buf = $self->{inputbuf};
$self->{inputbuf} =~ s/.*?(\x0D\x0A?\x0D\x0A?|\x0A\x0D?\x0A\x0D?)//s;
-
+
# Parse headers
my $headers = HTTP::Headers->new;
my ($key, $val);
sub _inet_addr { unpack "N*", inet_aton( $_[0] ) }
+no Moose;
+
=head1 SEE ALSO
L<Catalyst>, L<Catalyst::Engine>.
projects / catagits/Catalyst-Runtime.git / blobdiff