lib/Frey/Server.pm

package Frey::Server;

use Moose;
extends 'Frey';
with 'Frey::Web';
with 'Frey::Config';

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 || $self->config->{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;

        sub rest2class {
                my $class = shift;
                $class =~ s/-/::/; # sigh!
                return $class;
        }


        eval {

                my $f;

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

                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 = rest2class $1;
                        warn "# run $class $2\n";
                        $f = Frey::Run->new( class => $class, params => \%params );
                } elsif (
                        $path =~ m{/([^/]+)/?$}
                ) {
                        my $class = rest2class $1;
                        warn "# introspect $class";
                        $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class } );
                } 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	341	extends 'Frey';
5	dpavlin	100	with 'Frey::Web';
6	dpavlin	341	with 'Frey::Config';
7	dpavlin	100
8	dpavlin	2	use Continuity;
9	dpavlin	36	#use Continuity::REPL;
10	dpavlin	2	use Data::Dump qw/dump/;
11
12	dpavlin	190	#use Carp::REPL; ## XXX it would be nice, but it breaks error reporting too much
13	dpavlin	101	use Frey::ClassLoader;
14	dpavlin	223	use Frey::Run;
15	dpavlin	23
16	dpavlin	2	my @messages; # Global (shared) list of messages
17			my $got_message; # Flag to indicate that there is a new message to display
18
19	dpavlin	10	use vars qw( $repl $server );
20	dpavlin	2
21	dpavlin	34	#$repl = Continuity::REPL->new;
22	dpavlin	37
23	dpavlin	182	=head1 NAME
24
25			Frey::Server - Continuity based server for Frey
26
27			=head2 DESCRIPTION
28
29			This is one of pissible server implementations for Frey. In it's current stage, it's also most complete one.
30
31			=head2 run
32
33			$o->run( $optional_port );
34
35			=cut
36
37	dpavlin	25	sub run {
38	dpavlin	103	my ( $self, $port ) = @_;
39	dpavlin	64	$server = Continuity->new(
40	dpavlin	341	port => $port \|\| $self->config->{port} \|\| 16001,
41	dpavlin	64	path_session => 1,
42			cookie_session => 'sid',
43			callback => \&main,
44	dpavlin	205	debug_level => 2,
45	dpavlin	162	staticp => sub { $_[0]->url =~ m/\.(jpg\|jpeg\|gif\|png\|css\|ico\|js\|html?\|xml\|json\|ya?ml)(\?.*)?$/ },
46	dpavlin	64	);
47	dpavlin	205	$Module::Reload::Debug = 1; # auto if debug_level > 1
48	dpavlin	101	Frey::ClassLoader->new->load_all_classes();
49	dpavlin	25	$server->loop;
50			}
51	dpavlin	2
52	dpavlin	182	=head2 main
53
54			This is simple dispatcher for our server. Currently it's in flux and
55			documented only in source code.
56
57			=cut
58
59	dpavlin	2	sub main {
60	dpavlin	37	my ($req) = @_;
61	dpavlin	190
62	dpavlin	37	my $path = $req->request->url->path;
63	dpavlin	220	#warn "REQUEST: $path ",dump( $req->params );
64	dpavlin	2
65	dpavlin	142	Module::Reload->check if $path =~ m!reload! \|\| $req->param('reload');
66	dpavlin	120
67	dpavlin	142	# warn $req->request->header('User_Agent');
68	dpavlin	2
69	dpavlin	277	my %params = $req->params;
70			my $html;
71	dpavlin	66
72	dpavlin	292	sub rest2class {
73			my $class = shift;
74			$class =~ s/-/::/; # sigh!
75			return $class;
76			}
77
78
79	dpavlin	277	eval {
80
81	dpavlin	114	my $f;
82	dpavlin	66
83	dpavlin	314	my $run_regexp = join('\|', Frey::Run->runnable );
84	dpavlin	223
85	dpavlin	292	if (
86			$path =~ m{/Frey[:-]+ObjectBrowser}
87			) {
88	dpavlin	277	$f = Frey::ObjectBrowser->new( fey_class => $params{class} );
89			$f->request( $req );
90	dpavlin	292	} elsif (
91			$path =~ m{/Frey[:-]+ObjectDesigner}
92			) {
93	dpavlin	277	$f = Frey::ObjectDesigner->new( fey_class => $params{class} );
94			$f->request( $req );
95	dpavlin	292	} elsif (
96			$path =~ m{/([^/]+)/($run_regexp)}
97			) {
98			my $class = rest2class $1;
99	dpavlin	280	warn "# run $class $2\n";
100			$f = Frey::Run->new( class => $class, params => \%params );
101	dpavlin	292	} elsif (
102			$path =~ m{/([^/]+)/?$}
103			) {
104			my $class = rest2class $1;
105			warn "# introspect $class";
106			$f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class } );
107	dpavlin	121	} else {
108	dpavlin	216	$f = Frey::Run->new( class => 'Frey::ClassBrowser' );
109	dpavlin	66	}
110
111	dpavlin	277	if ( $f ) {
112			$req->print( $f->html );
113			} else {
114			warn "# can't call request on nothing!";
115			}
116
117	dpavlin	66	};
118
119	dpavlin	190	my $self = $req;
120
121	dpavlin	66	if ( $@ ) {
122			warn $@;
123	dpavlin	220	$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
124	dpavlin	66	$req->print( qq{<pre class="error">$@<pre>} );
125	dpavlin	190	# Carp::REPL::repl;
126	dpavlin	67
127	dpavlin	53	}
128
129	dpavlin	37	# If this is a request for the pushtream, then give them that
130			if($path =~ /pushstream/) {
131			pushstream($req);
132			}
133	dpavlin	121
134	dpavlin	37	# If they are sending us a message, we give them a thread for that too
135			if($path =~ /sendmessage/) {
136			send_message($req);
137			}
138	dpavlin	2
139			}
140
141			# Here we accept a connection to the browser, and keep it open. Meanwhile we
142			# watch the global $got_message variable, and when it gets touched we send off
143			# the list of messages through the held-open connection. Then we let the
144			# browser open a new connection and begin again.
145			sub pushstream {
146			my ($req) = @_;
147			# Set up watch event -- this will be triggered when $got_message is written
148			my $w = Coro::Event->var(var => \$got_message, poll => 'w');
149			while(1) {
150			print STDERR "** GOT MESSAGE, SENDING **\n";
151			my $log = join "<br>", @messages;
152			$req->print($log);
153			$req->next;
154			print STDERR "** Waiting for got_message indicator **\n";
155			$w->next;
156			}
157			}
158
159
160			# Watch for the user to send us a message. As soon as we get it, we add it to
161			# our list of messages and touch the $got_message flag to let all the
162			# pushstreams know.
163			sub send_message {
164			my ($req) = @_;
165			while(1) {
166			my $msg = $req->param('message');
167			my $name = $req->param('username');
168			if($msg) {
169			unshift @messages, "$name: $msg";
170			pop @messages if $#messages > 15; # Only keep the recent 15 messages
171			}
172			$got_message = 1;
173			$req->print("Got it!");
174			$req->next;
175			}
176			}
177
178	dpavlin	25	1;