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;
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;

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

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

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

        sub run_markup {
                my ( $req, $class ) = @_;

                my %params = $req->params;

                my @required = 
                        grep {
                                defined $_ && !defined( $params{$_} )
                        }
                        map {
                                my $attr = $class->meta->get_attribute($_);
                                $attr->is_required && $_
                        } $class->meta->get_attribute_list;

                warn "## required = ",dump( @required );
                warn "## params = ",dump( %params );

                my $html;

                if ( @required ) {
                        $html = qq|<form method="post">|;
                        $html .= qq|<input type="text" name="$_">| foreach @required;
                        $html .= qq|<input type="submit" value="Run $class"></form>|;
                } else {
                        my $o = $class->new( %params );
                        $o->depends if $o->can('depends');
                        $html = $o->markup;
                }

                warn ">>> markup $class ",length( $html ), " bytes\n";
                return $html;
        }


#       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/([^/]+)(.*)! ) {
                        $req->print( run_markup( $req, $1 )  );
                } else {
                        $f = Frey::ClassBrowser->new;
                }
                $f->html( $req ) if $f;

        };

        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;       # FIXME if $self->debug

        }

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

        if ( $path =~ m/die/ ) {
                Carp::REPL::repl;       # FIXME if $self->debug
        }

        # 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	121	use Carp::REPL;
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	25	sub run {
22	dpavlin	103	my ( $self, $port ) = @_;
23	dpavlin	64	$server = Continuity->new(
24	dpavlin	103	port => $port \|\| 16001,
25	dpavlin	64	path_session => 1,
26			cookie_session => 'sid',
27			callback => \&main,
28			debug_level => 1,
29	dpavlin	162	staticp => sub { $_[0]->url =~ m/\.(jpg\|jpeg\|gif\|png\|css\|ico\|js\|html?\|xml\|json\|ya?ml)(\?.*)?$/ },
30	dpavlin	64	);
31	dpavlin	114	$Module::Reload::Debug = 1;
32	dpavlin	101	Frey::ClassLoader->new->load_all_classes();
33	dpavlin	25	$server->loop;
34			}
35	dpavlin	2
36			# This is the main entrypoint. We are looking for one of three things -- a
37			# pushstream, a sent message, or a request for the main HTML. We delegate each
38			# of these cases, none of which will return (they all loop forever).
39			sub main {
40	dpavlin	37	my ($req) = @_;
41	dpavlin	2
42	dpavlin	37	my $path = $req->request->url->path;
43	dpavlin	142	warn "REQUEST: $path ",dump( $req->params ),"\n";
44	dpavlin	2
45	dpavlin	142	Module::Reload->check if $path =~ m!reload! \|\| $req->param('reload');
46	dpavlin	120
47	dpavlin	142	# warn $req->request->header('User_Agent');
48	dpavlin	2
49	dpavlin	179	sub run_markup {
50			my ( $req, $class ) = @_;
51
52			my %params = $req->params;
53
54			my @required =
55			grep {
56			defined $_ && !defined( $params{$_} )
57			}
58			map {
59			my $attr = $class->meta->get_attribute($_);
60			$attr->is_required && $_
61			} $class->meta->get_attribute_list;
62
63			warn "## required = ",dump( @required );
64			warn "## params = ",dump( %params );
65
66			my $html;
67
68			if ( @required ) {
69			$html = qq\|<form method="post">\|;
70			$html .= qq\|<input type="text" name="$_">\| foreach @required;
71			$html .= qq\|<input type="submit" value="Run $class"></form>\|;
72			} else {
73			my $o = $class->new( %params );
74			$o->depends if $o->can('depends');
75			$html = $o->markup;
76			}
77
78			warn ">>> markup $class ",length( $html ), " bytes\n";
79			return $html;
80			}
81
82
83	dpavlin	142	# eval {
84			{
85	dpavlin	66
86	dpavlin	114	my $f;
87	dpavlin	66
88	dpavlin	114	if ( $path =~ m!/~/([^/]+)(.*)! ) {
89			$f = Frey::Introspect->new( package => $1 );
90			} elsif ( $path =~ m!/ob/([^/]+)(.*)! ) {
91			$f = Frey::ObjectBrowser->new( fey_class => $1 );
92			} elsif ( $path =~ m!/od/([^/]+)(.*)! ) {
93			$f = Frey::ObjectDesigner->new( fey_class => $1 );
94	dpavlin	158	} elsif ( $path =~ m!/markup/([^/]+)(.*)! ) {
95	dpavlin	179	$req->print( run_markup( $req, $1 ) );
96	dpavlin	121	} else {
97			$f = Frey::ClassBrowser->new;
98	dpavlin	66	}
99	dpavlin	114	$f->html( $req ) if $f;
100	dpavlin	66
101			};
102
103			if ( $@ ) {
104			warn $@;
105			#$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
106			$req->print( qq{<pre class="error">$@<pre>} );
107	dpavlin	121	Carp::REPL::repl; # FIXME if $self->debug
108	dpavlin	67
109	dpavlin	53	}
110
111	dpavlin	37	# If this is a request for the pushtream, then give them that
112			if($path =~ /pushstream/) {
113			pushstream($req);
114			}
115	dpavlin	121
116			if ( $path =~ m/die/ ) {
117			Carp::REPL::repl; # FIXME if $self->debug
118			}
119
120	dpavlin	37	# If they are sending us a message, we give them a thread for that too
121			if($path =~ /sendmessage/) {
122			send_message($req);
123			}
124	dpavlin	2
125			}
126
127			# Here we accept a connection to the browser, and keep it open. Meanwhile we
128			# watch the global $got_message variable, and when it gets touched we send off
129			# the list of messages through the held-open connection. Then we let the
130			# browser open a new connection and begin again.
131			sub pushstream {
132			my ($req) = @_;
133			# Set up watch event -- this will be triggered when $got_message is written
134			my $w = Coro::Event->var(var => \$got_message, poll => 'w');
135			while(1) {
136			print STDERR "** GOT MESSAGE, SENDING **\n";
137			my $log = join "<br>", @messages;
138			$req->print($log);
139			$req->next;
140			print STDERR "** Waiting for got_message indicator **\n";
141			$w->next;
142			}
143			}
144
145
146			# Watch for the user to send us a message. As soon as we get it, we add it to
147			# our list of messages and touch the $got_message flag to let all the
148			# pushstreams know.
149			sub send_message {
150			my ($req) = @_;
151			while(1) {
152			my $msg = $req->param('message');
153			my $name = $req->param('username');
154			if($msg) {
155			unshift @messages, "$name: $msg";
156			pop @messages if $#messages > 15; # Only keep the recent 15 messages
157			}
158			$got_message = 1;
159			$req->print("Got it!");
160			$req->next;
161			}
162			}
163
164	dpavlin	25	1;