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;
use Frey::Editor;

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 );
                my $editor = Frey::Editor->new;

                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 =~ $editor->url_regex ) {
                        $req->print( $editor->command( $path ) );
                        system( $editor->command( $path ) );
                        return;
                } elsif (
                        $path =~ m{/([^/]+)/($run_regexp)}
                ) {
                        my $class = rest2class $1;
                        warn "# run $class $2\n";
                        $f = Frey::Run->new( class => $class, params => \%params, run => $2, request_url => $req->request->url );
                } elsif (
                        $path =~ m{/([^/]+)/?$}
                ) {
                        my $class = rest2class $1;
                        warn "# introspect $class";
                        $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class }, request_url => $req->request->url );
                } 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
                $req->print( qq{<pre class="frey-error">$@<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	407	use Frey::Editor;
16	dpavlin	23
17	dpavlin	2	my @messages; # Global (shared) list of messages
18			my $got_message; # Flag to indicate that there is a new message to display
19
20	dpavlin	10	use vars qw( $repl $server );
21	dpavlin	2
22	dpavlin	34	#$repl = Continuity::REPL->new;
23	dpavlin	37
24	dpavlin	182	=head1 NAME
25
26			Frey::Server - Continuity based server for Frey
27
28			=head2 DESCRIPTION
29
30			This is one of pissible server implementations for Frey. In it's current stage, it's also most complete one.
31
32			=head2 run
33
34			$o->run( $optional_port );
35
36			=cut
37
38	dpavlin	25	sub run {
39	dpavlin	103	my ( $self, $port ) = @_;
40	dpavlin	64	$server = Continuity->new(
41	dpavlin	341	port => $port \|\| $self->config->{port} \|\| 16001,
42	dpavlin	64	path_session => 1,
43			cookie_session => 'sid',
44			callback => \&main,
45	dpavlin	205	debug_level => 2,
46	dpavlin	162	staticp => sub { $_[0]->url =~ m/\.(jpg\|jpeg\|gif\|png\|css\|ico\|js\|html?\|xml\|json\|ya?ml)(\?.*)?$/ },
47	dpavlin	64	);
48	dpavlin	205	$Module::Reload::Debug = 1; # auto if debug_level > 1
49	dpavlin	101	Frey::ClassLoader->new->load_all_classes();
50	dpavlin	25	$server->loop;
51			}
52	dpavlin	2
53	dpavlin	182	=head2 main
54
55			This is simple dispatcher for our server. Currently it's in flux and
56			documented only in source code.
57
58			=cut
59
60	dpavlin	2	sub main {
61	dpavlin	37	my ($req) = @_;
62	dpavlin	190
63	dpavlin	37	my $path = $req->request->url->path;
64	dpavlin	220	#warn "REQUEST: $path ",dump( $req->params );
65	dpavlin	2
66	dpavlin	142	Module::Reload->check if $path =~ m!reload! \|\| $req->param('reload');
67	dpavlin	120
68	dpavlin	142	# warn $req->request->header('User_Agent');
69	dpavlin	2
70	dpavlin	277	my %params = $req->params;
71			my $html;
72	dpavlin	66
73	dpavlin	292	sub rest2class {
74			my $class = shift;
75			$class =~ s/-/::/; # sigh!
76			return $class;
77			}
78
79
80	dpavlin	277	eval {
81
82	dpavlin	114	my $f;
83	dpavlin	66
84	dpavlin	314	my $run_regexp = join('\|', Frey::Run->runnable );
85	dpavlin	407	my $editor = Frey::Editor->new;
86	dpavlin	223
87	dpavlin	292	if (
88			$path =~ m{/Frey[:-]+ObjectBrowser}
89			) {
90	dpavlin	277	$f = Frey::ObjectBrowser->new( fey_class => $params{class} );
91			$f->request( $req );
92	dpavlin	292	} elsif (
93			$path =~ m{/Frey[:-]+ObjectDesigner}
94			) {
95	dpavlin	277	$f = Frey::ObjectDesigner->new( fey_class => $params{class} );
96			$f->request( $req );
97	dpavlin	407	} elsif ( $path =~ $editor->url_regex ) {
98			$req->print( $editor->command( $path ) );
99			system( $editor->command( $path ) );
100	dpavlin	346	return;
101			} elsif (
102	dpavlin	292	$path =~ m{/([^/]+)/($run_regexp)}
103			) {
104			my $class = rest2class $1;
105	dpavlin	280	warn "# run $class $2\n";
106	dpavlin	392	$f = Frey::Run->new( class => $class, params => \%params, run => $2, request_url => $req->request->url );
107	dpavlin	292	} elsif (
108			$path =~ m{/([^/]+)/?$}
109			) {
110			my $class = rest2class $1;
111			warn "# introspect $class";
112	dpavlin	392	$f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class }, request_url => $req->request->url );
113	dpavlin	121	} else {
114	dpavlin	216	$f = Frey::Run->new( class => 'Frey::ClassBrowser' );
115	dpavlin	66	}
116
117	dpavlin	277	if ( $f ) {
118			$req->print( $f->html );
119			} else {
120			warn "# can't call request on nothing!";
121			}
122
123	dpavlin	66	};
124
125	dpavlin	190	my $self = $req;
126
127	dpavlin	66	if ( $@ ) {
128			warn $@;
129	dpavlin	220	$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
130	dpavlin	350	$req->print( qq{<pre class="frey-error">$@<pre>} );
131	dpavlin	190	# Carp::REPL::repl;
132	dpavlin	67
133	dpavlin	53	}
134
135	dpavlin	37	# If this is a request for the pushtream, then give them that
136			if($path =~ /pushstream/) {
137			pushstream($req);
138			}
139	dpavlin	121
140	dpavlin	37	# If they are sending us a message, we give them a thread for that too
141			if($path =~ /sendmessage/) {
142			send_message($req);
143			}
144	dpavlin	2
145			}
146
147			# Here we accept a connection to the browser, and keep it open. Meanwhile we
148			# watch the global $got_message variable, and when it gets touched we send off
149			# the list of messages through the held-open connection. Then we let the
150			# browser open a new connection and begin again.
151			sub pushstream {
152			my ($req) = @_;
153			# Set up watch event -- this will be triggered when $got_message is written
154			my $w = Coro::Event->var(var => \$got_message, poll => 'w');
155			while(1) {
156			print STDERR "** GOT MESSAGE, SENDING **\n";
157			my $log = join "<br>", @messages;
158			$req->print($log);
159			$req->next;
160			print STDERR "** Waiting for got_message indicator **\n";
161			$w->next;
162			}
163			}
164
165
166			# Watch for the user to send us a message. As soon as we get it, we add it to
167			# our list of messages and touch the $got_message flag to let all the
168			# pushstreams know.
169			sub send_message {
170			my ($req) = @_;
171			while(1) {
172			my $msg = $req->param('message');
173			my $name = $req->param('username');
174			if($msg) {
175			unshift @messages, "$name: $msg";
176			pop @messages if $#messages > 15; # Only keep the recent 15 messages
177			}
178			$got_message = 1;
179			$req->print("Got it!");
180			$req->next;
181			}
182			}
183
184	dpavlin	25	1;