lib/Frey/Server.pm

package Frey::Server;

use Moose;

with 'Frey::Web';

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

use Frey;
use Frey::Introspect;
use Frey::ObjectBrowser;

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;

sub run {
        $server = Continuity->new(
                port => 16001,
                path_session => 1,
                cookie_session => 'sid',
                callback => \&main,
                debug_level => 1,
                staticp => sub { $_[0]->url =~ m/\.(jpg|jpeg|gif|png|css|ico|js|html?)$/ },
        );
        $server->loop;
}

# This is the main entrypoint. We are looking for one of three things -- a
# pushstream, a sent message, or a request for the main HTML. We delegate each
# of these cases, none of which will return (they all loop forever).
sub main {
        my ($req) = @_;
  
        my $path = $req->request->url->path;
        warn "REQUEST: $path\n";

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

        eval {

                if ( $path =~ m!/~/([^/]+)(?:/([^/]*))?! ) {
                        my $f = Frey::Introspect->new( package => $1 );
                        $f->html( $req );
                }

                if ( $path =~ m!/ob/([^/]+)(?:/([^/]*))?! ) {
                        my $f = Frey::ObjectBrowser->new;
                        $f->html( $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>} );

        } else {

                my $f = Frey::ClassLoader->new;
                my $classes = dom2html(
                        ul => [
                                map {
                                        warn dump( $_ );
                                        my ( $package, $path ) = %$_;
                                        ( li => [
                                                a => { href => '/~/' . $package . '/' } => [ $package ],
                                                ' ',
                                                a => { href => '/ob/' . $package } => [ 'browse' ],
                                                " <tt>$path</tt>"
                                        ] )
                                } @{ $f->classes }
                        ],
                );
                $req->print( $classes );

        }

        # 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	package Frey::Server;
2
3	use Moose;
4
5	with 'Frey::Web';
6
7	use Continuity;
8	#use Continuity::REPL;
9	use Data::Dump qw/dump/;
10
11	use Frey;
12	use Frey::Introspect;
13	use Frey::ObjectBrowser;
14
15	my @messages; # Global (shared) list of messages
16	my $got_message; # Flag to indicate that there is a new message to display
17
18	use vars qw( $repl $server );
19
20	#$repl = Continuity::REPL->new;
21
22	sub run {
23	$server = Continuity->new(
24	port => 16001,
25	path_session => 1,
26	cookie_session => 'sid',
27	callback => \&main,
28	debug_level => 1,
29	staticp => sub { $_[0]->url =~ m/\.(jpg\|jpeg\|gif\|png\|css\|ico\|js\|html?)$/ },
30	);
31	$server->loop;
32	}
33
34	# This is the main entrypoint. We are looking for one of three things -- a
35	# pushstream, a sent message, or a request for the main HTML. We delegate each
36	# of these cases, none of which will return (they all loop forever).
37	sub main {
38	my ($req) = @_;
39
40	my $path = $req->request->url->path;
41	warn "REQUEST: $path\n";
42
43	warn $req->request->header('User_Agent');
44	#warn dump( $req );
45
46	eval {
47
48	if ( $path =~ m!/~/([^/]+)(?:/([^/]*))?! ) {
49	my $f = Frey::Introspect->new( package => $1 );
50	$f->html( $req );
51	}
52
53	if ( $path =~ m!/ob/([^/]+)(?:/([^/]*))?! ) {
54	my $f = Frey::ObjectBrowser->new;
55	$f->html( $req );
56	}
57
58	};
59
60	if ( $@ ) {
61	warn $@;
62	#$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
63	$req->print( qq{<pre class="error">$@<pre>} );
64
65	} else {
66
67	my $f = Frey::ClassLoader->new;
68	my $classes = dom2html(
69	ul => [
70	map {
71	warn dump( $_ );
72	my ( $package, $path ) = %$_;
73	( li => [
74	a => { href => '/~/' . $package . '/' } => [ $package ],
75	' ',
76	a => { href => '/ob/' . $package } => [ 'browse' ],
77	" <tt>$path</tt>"
78	] )
79	} @{ $f->classes }
80	],
81	);
82	$req->print( $classes );
83
84	}
85
86	# If this is a request for the pushtream, then give them that
87	if($path =~ /pushstream/) {
88	pushstream($req);
89	}
90
91	# If they are sending us a message, we give them a thread for that too
92	if($path =~ /sendmessage/) {
93	send_message($req);
94	}
95
96	}
97
98	# Here we accept a connection to the browser, and keep it open. Meanwhile we
99	# watch the global $got_message variable, and when it gets touched we send off
100	# the list of messages through the held-open connection. Then we let the
101	# browser open a new connection and begin again.
102	sub pushstream {
103	my ($req) = @_;
104	# Set up watch event -- this will be triggered when $got_message is written
105	my $w = Coro::Event->var(var => \$got_message, poll => 'w');
106	while(1) {
107	print STDERR "** GOT MESSAGE, SENDING **\n";
108	my $log = join "<br>", @messages;
109	$req->print($log);
110	$req->next;
111	print STDERR "** Waiting for got_message indicator **\n";
112	$w->next;
113	}
114	}
115
116
117	# Watch for the user to send us a message. As soon as we get it, we add it to
118	# our list of messages and touch the $got_message flag to let all the
119	# pushstreams know.
120	sub send_message {
121	my ($req) = @_;
122	while(1) {
123	my $msg = $req->param('message');
124	my $name = $req->param('username');
125	if($msg) {
126	unshift @messages, "$name: $msg";
127	pop @messages if $#messages > 15; # Only keep the recent 15 messages
128	}
129	$got_message = 1;
130	$req->print("Got it!");
131	$req->next;
132	}
133	}
134
135	1;