lib/Frey/Server.pm

package Frey::Server;

use strict;
use warnings;

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

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

sub run {
        $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 );

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

        # 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);
        }

        if($path =~ m!^/ob!) {
                Frey::ObjectBrowser->new( req => $req )->html;
        }

        # Otherwise, lets give them page
        send_page($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;
  }
}

# This isn't a pushstream, nor a new message. It is just the main page. We loop
# in case they ask for it multiple times :)
sub send_page {
        my ($req) = @_;
        my $templates = Template::Declare->templates;
        while(1) {
                warn "param = ",dump($req->param);
                my $path = $req->request->url->path;

                my $html;

                if ( $path =~ m/::/ ) {
                        my ( undef, $module, $method ) = split(m!/!, $path, 3);

                        if ( ! defined( $templates->{$module} ) ) {
                                $req->conn->send_status_line( 404, "$module" );
                                $html = "Package $module not found";
                        } elsif ( ! $method ) {
                                $html = Frey::HTML->page( 'package-templates', $req, $module );
                        } elsif ( grep(/^\Q$method\E$/, @{ $templates->{$module} }) ) {
                                $html = Frey::HTML->page( $method, $req );
                        } else {
                                $req->conn->send_status_line( 404, "$module $method" );
                                $html = "Package $module doesn't have $method";
                        }
                } else {
                        warn "fallback to status page\n";
                        $html = Frey::HTML->page( 'status' );
                }

                $req->print( $html );
                warn ">> ",length( $html ), " bytes\n";
                $req->next;
        }
}

1;
1	dpavlin	19	package Frey::Server;
2	dpavlin	2
3	dpavlin	19	use strict;
4	dpavlin	10	use warnings;
5
6	dpavlin	2	use Continuity;
7	dpavlin	36	#use Continuity::REPL;
8	dpavlin	53	use Continuity::Widget::DomNode;
9	dpavlin	2	use Data::Dump qw/dump/;
10
11	dpavlin	23	use base 'Frey';
12			use Frey::HTML;
13	dpavlin	53	use Frey::ObjectBrowser;
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			$server = Continuity->new(
22	dpavlin	37	port => 16001,
23			path_session => 1,
24			cookie_session => 'sid',
25			callback => \&main,
26	dpavlin	42	debug_level => 1,
27	dpavlin	48	staticp => sub { $_[0]->url =~ m/\.(jpg\|jpeg\|gif\|png\|css\|ico\|js\|html?)$/ },
28	dpavlin	34	);
29	dpavlin	37
30	dpavlin	25	sub run {
31			$server->loop;
32			}
33	dpavlin	2
34			# This is the main entrypoint. We are looking for one of three things -- a
35			# pushstream, a sent message, or a request for the main HTML. We delegate each
36			# of these cases, none of which will return (they all loop forever).
37			sub main {
38	dpavlin	37	my ($req) = @_;
39	dpavlin	2
40	dpavlin	37	my $path = $req->request->url->path;
41			warn "REQUEST: $path\n";
42	dpavlin	2
43			warn $req->request->header('User_Agent');
44			#warn dump( $req );
45
46	dpavlin	53	if ( $path =~ m!/~/([^/]+)(?:/([^/]*))?! ) {
47			my $f = Frey::Introspect->new( package => $1 );
48			$f->html( $req );
49			}
50
51	dpavlin	37	# If this is a request for the pushtream, then give them that
52			if($path =~ /pushstream/) {
53			pushstream($req);
54			}
55	dpavlin	2
56	dpavlin	37	# If they are sending us a message, we give them a thread for that too
57			if($path =~ /sendmessage/) {
58			send_message($req);
59			}
60	dpavlin	2
61	dpavlin	53	if($path =~ m!^/ob!) {
62			Frey::ObjectBrowser->new( req => $req )->html;
63			}
64
65	dpavlin	37	# Otherwise, lets give them page
66			send_page($req);
67	dpavlin	2	}
68
69			# Here we accept a connection to the browser, and keep it open. Meanwhile we
70			# watch the global $got_message variable, and when it gets touched we send off
71			# the list of messages through the held-open connection. Then we let the
72			# browser open a new connection and begin again.
73			sub pushstream {
74			my ($req) = @_;
75			# Set up watch event -- this will be triggered when $got_message is written
76			my $w = Coro::Event->var(var => \$got_message, poll => 'w');
77			while(1) {
78			print STDERR "** GOT MESSAGE, SENDING **\n";
79			my $log = join "<br>", @messages;
80			$req->print($log);
81			$req->next;
82			print STDERR "** Waiting for got_message indicator **\n";
83			$w->next;
84			}
85			}
86
87
88			# Watch for the user to send us a message. As soon as we get it, we add it to
89			# our list of messages and touch the $got_message flag to let all the
90			# pushstreams know.
91			sub send_message {
92			my ($req) = @_;
93			while(1) {
94			my $msg = $req->param('message');
95			my $name = $req->param('username');
96			if($msg) {
97			unshift @messages, "$name: $msg";
98			pop @messages if $#messages > 15; # Only keep the recent 15 messages
99			}
100			$got_message = 1;
101			$req->print("Got it!");
102			$req->next;
103			}
104			}
105
106			# This isn't a pushstream, nor a new message. It is just the main page. We loop
107			# in case they ask for it multiple times :)
108	dpavlin	19	sub send_page {
109	dpavlin	23	my ($req) = @_;
110			my $templates = Template::Declare->templates;
111			while(1) {
112			warn "param = ",dump($req->param);
113			my $path = $req->request->url->path;
114
115	dpavlin	30	my $html;
116
117	dpavlin	23	if ( $path =~ m/::/ ) {
118			my ( undef, $module, $method ) = split(m!/!, $path, 3);
119
120			if ( ! defined( $templates->{$module} ) ) {
121			$req->conn->send_status_line( 404, "$module" );
122	dpavlin	30	$html = "Package $module not found";
123	dpavlin	28	} elsif ( ! $method ) {
124	dpavlin	53	$html = Frey::HTML->page( 'package-templates', $req, $module );
125	dpavlin	23	} elsif ( grep(/^\Q$method\E$/, @{ $templates->{$module} }) ) {
126	dpavlin	30	$html = Frey::HTML->page( $method, $req );
127	dpavlin	23	} else {
128			$req->conn->send_status_line( 404, "$module $method" );
129	dpavlin	30	$html = "Package $module doesn't have $method";
130	dpavlin	23	}
131			} else {
132	dpavlin	30	warn "fallback to status page\n";
133			$html = Frey::HTML->page( 'status' );
134	dpavlin	23	}
135	dpavlin	30
136			$req->print( $html );
137			warn ">> ",length( $html ), " bytes\n";
138	dpavlin	23	$req->next;
139			}
140	dpavlin	2	}
141
142	dpavlin	25	1;