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;
use Frey::Run;

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');

        my %params = $req->params;
        my $html;

        eval {

                my $f;

                my $run_regexp = join('|', Frey::Run->execute );

                if ( $path =~ m!/Frey[:-]+ObjectBrowser! ) {
                        $f = Frey::ObjectBrowser->new( fey_class => $params{class} );
                        $f->request( $req );
                } elsif ( $path =~ m!/Frey[:-]+ObjectDesigner! ) {
                        $f = Frey::ObjectDesigner->new( fey_class => $params{class} );
                        $f->request( $req );
                } elsif ( $path =~ m!/([^/]+)/($run_regexp)! ) {
                        my $class = $1;
                        $class =~ s/-/::/; # sigh!
                        warn "# run $class $2\n";
                        $f = Frey::Run->new( class => $class, params => \%params );
                } else {
                        $f = Frey::Run->new( class => 'Frey::ClassBrowser' );
                }

                if ( $f ) {
                        $req->print( $f->html );
                } else {
                        warn "# can't call request on nothing!";
                }

        };

        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	223	use Frey::Run;
14	dpavlin	23
15	dpavlin	2	my @messages; # Global (shared) list of messages
16			my $got_message; # Flag to indicate that there is a new message to display
17
18	dpavlin	10	use vars qw( $repl $server );
19	dpavlin	2
20	dpavlin	34	#$repl = Continuity::REPL->new;
21	dpavlin	37
22	dpavlin	182	=head1 NAME
23
24			Frey::Server - Continuity based server for Frey
25
26			=head2 DESCRIPTION
27
28			This is one of pissible server implementations for Frey. In it's current stage, it's also most complete one.
29
30			=head2 run
31
32			$o->run( $optional_port );
33
34			=cut
35
36	dpavlin	25	sub run {
37	dpavlin	103	my ( $self, $port ) = @_;
38	dpavlin	64	$server = Continuity->new(
39	dpavlin	103	port => $port \|\| 16001,
40	dpavlin	64	path_session => 1,
41			cookie_session => 'sid',
42			callback => \&main,
43	dpavlin	205	debug_level => 2,
44	dpavlin	162	staticp => sub { $_[0]->url =~ m/\.(jpg\|jpeg\|gif\|png\|css\|ico\|js\|html?\|xml\|json\|ya?ml)(\?.*)?$/ },
45	dpavlin	64	);
46	dpavlin	205	$Module::Reload::Debug = 1; # auto if debug_level > 1
47	dpavlin	101	Frey::ClassLoader->new->load_all_classes();
48	dpavlin	25	$server->loop;
49			}
50	dpavlin	2
51	dpavlin	182	=head2 main
52
53			This is simple dispatcher for our server. Currently it's in flux and
54			documented only in source code.
55
56			=cut
57
58	dpavlin	2	sub main {
59	dpavlin	37	my ($req) = @_;
60	dpavlin	190
61	dpavlin	37	my $path = $req->request->url->path;
62	dpavlin	220	#warn "REQUEST: $path ",dump( $req->params );
63	dpavlin	2
64	dpavlin	142	Module::Reload->check if $path =~ m!reload! \|\| $req->param('reload');
65	dpavlin	120
66	dpavlin	142	# warn $req->request->header('User_Agent');
67	dpavlin	2
68	dpavlin	277	my %params = $req->params;
69			my $html;
70	dpavlin	66
71	dpavlin	277	eval {
72
73	dpavlin	114	my $f;
74	dpavlin	66
75	dpavlin	223	my $run_regexp = join('\|', Frey::Run->execute );
76
77	dpavlin	277	if ( $path =~ m!/Frey[:-]+ObjectBrowser! ) {
78			$f = Frey::ObjectBrowser->new( fey_class => $params{class} );
79			$f->request( $req );
80			} elsif ( $path =~ m!/Frey[:-]+ObjectDesigner! ) {
81			$f = Frey::ObjectDesigner->new( fey_class => $params{class} );
82			$f->request( $req );
83			} elsif ( $path =~ m!/([^/]+)/($run_regexp)! ) {
84	dpavlin	280	my $class = $1;
85			$class =~ s/-/::/; # sigh!
86			warn "# run $class $2\n";
87			$f = Frey::Run->new( class => $class, params => \%params );
88	dpavlin	121	} else {
89	dpavlin	216	$f = Frey::Run->new( class => 'Frey::ClassBrowser' );
90	dpavlin	66	}
91
92	dpavlin	277	if ( $f ) {
93			$req->print( $f->html );
94			} else {
95			warn "# can't call request on nothing!";
96			}
97
98	dpavlin	66	};
99
100	dpavlin	190	my $self = $req;
101
102	dpavlin	66	if ( $@ ) {
103			warn $@;
104	dpavlin	220	$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
105	dpavlin	66	$req->print( qq{<pre class="error">$@<pre>} );
106	dpavlin	190	# Carp::REPL::repl;
107	dpavlin	67
108	dpavlin	53	}
109
110	dpavlin	37	# If this is a request for the pushtream, then give them that
111			if($path =~ /pushstream/) {
112			pushstream($req);
113			}
114	dpavlin	121
115	dpavlin	37	# If they are sending us a message, we give them a thread for that too
116			if($path =~ /sendmessage/) {
117			send_message($req);
118			}
119	dpavlin	2
120			}
121
122			# Here we accept a connection to the browser, and keep it open. Meanwhile we
123			# watch the global $got_message variable, and when it gets touched we send off
124			# the list of messages through the held-open connection. Then we let the
125			# browser open a new connection and begin again.
126			sub pushstream {
127			my ($req) = @_;
128			# Set up watch event -- this will be triggered when $got_message is written
129			my $w = Coro::Event->var(var => \$got_message, poll => 'w');
130			while(1) {
131			print STDERR "** GOT MESSAGE, SENDING **\n";
132			my $log = join "<br>", @messages;
133			$req->print($log);
134			$req->next;
135			print STDERR "** Waiting for got_message indicator **\n";
136			$w->next;
137			}
138			}
139
140
141			# Watch for the user to send us a message. As soon as we get it, we add it to
142			# our list of messages and touch the $got_message flag to let all the
143			# pushstreams know.
144			sub send_message {
145			my ($req) = @_;
146			while(1) {
147			my $msg = $req->param('message');
148			my $name = $req->param('username');
149			if($msg) {
150			unshift @messages, "$name: $msg";
151			pop @messages if $#messages > 15; # Only keep the recent 15 messages
152			}
153			$got_message = 1;
154			$req->print("Got it!");
155			$req->next;
156			}
157			}
158
159	dpavlin	25	1;