lib/Frey/Server.pm

package Frey::Server;

use Moose;

with 'Frey::Web';

use Continuity;
#use Continuity::REPL;
use Data::Dump qw/dump/;

#use Carp::REPL; ## XXX it would be nice, but it breaks error reporting too much
use Frey::ClassLoader;

my @messages;    # Global (shared) list of messages
my $got_message; # Flag to indicate that there is a new message to display

use vars qw( $repl $server );

#$repl = Continuity::REPL->new;

=head1 NAME

Frey::Server - Continuity based server for Frey

=head2 DESCRIPTION

This is one of pissible server implementations for Frey. In it's current stage, it's also most complete one.

=head2 run

  $o->run( $optional_port );

=cut

sub run {
        my ( $self, $port ) = @_;
        $server = Continuity->new(
                port => $port || 16001,
                path_session => 1,
                cookie_session => 'sid',
                callback => \&main,
                debug_level => 2,
                staticp => sub { $_[0]->url =~ m/\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$/ },
        );
        $Module::Reload::Debug = 1; # auto if debug_level > 1
        Frey::ClassLoader->new->load_all_classes();
        $server->loop;
}

=head2 main

This is simple dispatcher for our server. Currently it's in flux and
documented only in source code.

=cut

sub main {
        my ($req) = @_;

        my $path = $req->request->url->path;
        #warn "REQUEST: $path ",dump( $req->params );

        Module::Reload->check if $path =~ m!reload! || $req->param('reload');

#       warn $req->request->header('User_Agent');

#       eval {
        {

                my $f;

                if ( $path =~ m!/~/([^/]+)(.*)! ) {
                        $f = Frey::Introspect->new( package => $1 );
                } elsif ( $path =~ m!/ob/([^/]+)(.*)! ) {
                        $f = Frey::ObjectBrowser->new( fey_class => $1 );
                } elsif ( $path =~ m!/od/([^/]+)(.*)! ) {
                        $f = Frey::ObjectDesigner->new( fey_class => $1 );
                } elsif ( $path =~ m!/(markup|request)/([^/]+)(.*)! ) {
                        $f = Frey::Run->new( class => $2 );
                } else {
                        $f = Frey::Run->new( class => 'Frey::ClassBrowser' );
                }
                $f->request( $req ) if $f;

        };

        my $self = $req;

        if ( $@ ) {
                warn $@;
                $req->conn->send_error( 404 );  # FIXME this should probably be 500, but we can't ship page with it
                $req->print( qq{<pre class="error">$@<pre>} );
#               Carp::REPL::repl;

        }

        # If this is a request for the pushtream, then give them that
        if($path =~ /pushstream/) {
                pushstream($req);
        }

        # If they are sending us a message, we give them a thread for that too
        if($path =~ /sendmessage/) {
                send_message($req);
        }

}

# Here we accept a connection to the browser, and keep it open. Meanwhile we
# watch the global $got_message variable, and when it gets touched we send off
# the list of messages through the held-open connection. Then we let the
# browser open a new connection and begin again.
sub pushstream {
  my ($req) = @_;
  # Set up watch event -- this will be triggered when $got_message is written
  my $w = Coro::Event->var(var => \$got_message, poll => 'w');
  while(1) {
    print STDERR "**** GOT MESSAGE, SENDING ****\n";
    my $log = join "<br>", @messages;
    $req->print($log);
    $req->next;
    print STDERR "**** Waiting for got_message indicator ****\n";
    $w->next;
  }
}


# Watch for the user to send us a message. As soon as we get it, we add it to
# our list of messages and touch the $got_message flag to let all the
# pushstreams know.
sub send_message {
  my ($req) = @_;
  while(1) {
    my $msg = $req->param('message');
    my $name = $req->param('username');
    if($msg) {
      unshift @messages, "$name: $msg";
      pop @messages if $#messages > 15; # Only keep the recent 15 messages
    }
    $got_message = 1;
    $req->print("Got it!");
    $req->next;
  }
}

1;
1	dpavlin	19	package Frey::Server;
2	dpavlin	2
3	dpavlin	55	use Moose;
4	dpavlin	10
5	dpavlin	100	with 'Frey::Web';
6
7	dpavlin	2	use Continuity;
8	dpavlin	36	#use Continuity::REPL;
9	dpavlin	2	use Data::Dump qw/dump/;
10
11	dpavlin	190	#use Carp::REPL; ## XXX it would be nice, but it breaks error reporting too much
12	dpavlin	101	use Frey::ClassLoader;
13	dpavlin	23
14	dpavlin	2	my @messages; # Global (shared) list of messages
15			my $got_message; # Flag to indicate that there is a new message to display
16
17	dpavlin	10	use vars qw( $repl $server );
18	dpavlin	2
19	dpavlin	34	#$repl = Continuity::REPL->new;
20	dpavlin	37
21	dpavlin	182	=head1 NAME
22
23			Frey::Server - Continuity based server for Frey
24
25			=head2 DESCRIPTION
26
27			This is one of pissible server implementations for Frey. In it's current stage, it's also most complete one.
28
29			=head2 run
30
31			$o->run( $optional_port );
32
33			=cut
34
35	dpavlin	25	sub run {
36	dpavlin	103	my ( $self, $port ) = @_;
37	dpavlin	64	$server = Continuity->new(
38	dpavlin	103	port => $port \|\| 16001,
39	dpavlin	64	path_session => 1,
40			cookie_session => 'sid',
41			callback => \&main,
42	dpavlin	205	debug_level => 2,
43	dpavlin	162	staticp => sub { $_[0]->url =~ m/\.(jpg\|jpeg\|gif\|png\|css\|ico\|js\|html?\|xml\|json\|ya?ml)(\?.*)?$/ },
44	dpavlin	64	);
45	dpavlin	205	$Module::Reload::Debug = 1; # auto if debug_level > 1
46	dpavlin	101	Frey::ClassLoader->new->load_all_classes();
47	dpavlin	25	$server->loop;
48			}
49	dpavlin	2
50	dpavlin	182	=head2 main
51
52			This is simple dispatcher for our server. Currently it's in flux and
53			documented only in source code.
54
55			=cut
56
57	dpavlin	2	sub main {
58	dpavlin	37	my ($req) = @_;
59	dpavlin	190
60	dpavlin	37	my $path = $req->request->url->path;
61	dpavlin	220	#warn "REQUEST: $path ",dump( $req->params );
62	dpavlin	2
63	dpavlin	142	Module::Reload->check if $path =~ m!reload! \|\| $req->param('reload');
64	dpavlin	120
65	dpavlin	142	# warn $req->request->header('User_Agent');
66	dpavlin	2
67	dpavlin	142	# eval {
68			{
69	dpavlin	66
70	dpavlin	114	my $f;
71	dpavlin	66
72	dpavlin	114	if ( $path =~ m!/~/([^/]+)(.*)! ) {
73			$f = Frey::Introspect->new( package => $1 );
74			} elsif ( $path =~ m!/ob/([^/]+)(.*)! ) {
75			$f = Frey::ObjectBrowser->new( fey_class => $1 );
76			} elsif ( $path =~ m!/od/([^/]+)(.*)! ) {
77			$f = Frey::ObjectDesigner->new( fey_class => $1 );
78	dpavlin	213	} elsif ( $path =~ m!/(markup\|request)/([^/]+)(.*)! ) {
79	dpavlin	184	$f = Frey::Run->new( class => $2 );
80	dpavlin	121	} else {
81	dpavlin	216	$f = Frey::Run->new( class => 'Frey::ClassBrowser' );
82	dpavlin	66	}
83	dpavlin	213	$f->request( $req ) if $f;
84	dpavlin	66
85			};
86
87	dpavlin	190	my $self = $req;
88
89	dpavlin	66	if ( $@ ) {
90			warn $@;
91	dpavlin	220	$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
92	dpavlin	66	$req->print( qq{<pre class="error">$@<pre>} );
93	dpavlin	190	# Carp::REPL::repl;
94	dpavlin	67
95	dpavlin	53	}
96
97	dpavlin	37	# If this is a request for the pushtream, then give them that
98			if($path =~ /pushstream/) {
99			pushstream($req);
100			}
101	dpavlin	121
102	dpavlin	37	# If they are sending us a message, we give them a thread for that too
103			if($path =~ /sendmessage/) {
104			send_message($req);
105			}
106	dpavlin	2
107			}
108
109			# Here we accept a connection to the browser, and keep it open. Meanwhile we
110			# watch the global $got_message variable, and when it gets touched we send off
111			# the list of messages through the held-open connection. Then we let the
112			# browser open a new connection and begin again.
113			sub pushstream {
114			my ($req) = @_;
115			# Set up watch event -- this will be triggered when $got_message is written
116			my $w = Coro::Event->var(var => \$got_message, poll => 'w');
117			while(1) {
118			print STDERR "** GOT MESSAGE, SENDING **\n";
119			my $log = join "<br>", @messages;
120			$req->print($log);
121			$req->next;
122			print STDERR "** Waiting for got_message indicator **\n";
123			$w->next;
124			}
125			}
126
127
128			# Watch for the user to send us a message. As soon as we get it, we add it to
129			# our list of messages and touch the $got_message flag to let all the
130			# pushstreams know.
131			sub send_message {
132			my ($req) = @_;
133			while(1) {
134			my $msg = $req->param('message');
135			my $name = $req->param('username');
136			if($msg) {
137			unshift @messages, "$name: $msg";
138			pop @messages if $#messages > 15; # Only keep the recent 15 messages
139			}
140			$got_message = 1;
141			$req->print("Got it!");
142			$req->next;
143			}
144			}
145
146	dpavlin	25	1;