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 { $_[0]->url =~ m/^(static|var).*\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$/ },
        );
        $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;

        eval {

                sub refresh {
                        my $url = shift || '/';
                        warn "# refresh $url";
                        qq|
                                <html>
                                <head>
                                        <META HTTP-EQUIV="Refresh" CONTENT="2; URL=$url"></META>
                                </head>
                                <body>
                                        Refresh <a href="$url"><tt>$url</tt></a>
                                </body>
                                </html>
                                \n\r\n\r
                        |; # XXX newlines at end are important to flush content to browser
                }

                if ( $path =~ m{/reload(.*)} ) {
                        Frey::Server->new->load_config;
                        Module::Reload->check;
                        warn "# reload done";
                        $req->print( refresh( $1 ) );
                        return;
                } elsif ( $path =~ m{/exit(.*)} ) {
                        # FIXME do we need some kind of check here for production? :-)
                        # ./bin/dev.sh will restart us during development
                        $req->print( refresh( $1 ) );
                        exit;
                }

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

                my %params = $req->params;
                my $html;

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


                my $f;

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

                # shared run params
                my $run = {
                        request_url => $req->request->url,
                        debug => 1,
                };

                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{/([^/]+)/(as_\w+)/?([^/]+)?}
                ) {
                        my $class = rest2class $1;
                        warn "# run $path -> $class $2";
                        $run->{format} = $3 if $3;
                        $params{request_url} = $req->request->url;
                        $f = Frey::Run->new( class => $class, params => \%params, run => $2, %$run );
                } elsif (
                        $path =~ m{/([^/]+)/?$}
                ) {
                        my $class = rest2class $1;
                        warn "# introspect $class";
                        $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class }, %$run );
                } else {
                        $f = Frey::Run->new( class => 'Frey::ClassBrowser', %$run );
                }

                if ( $f ) {
                        $f->clean_status;
                        $f->add_status( { request => $req } );
                        warn "## status ", dump( map { keys %$_ } $f->status );
                        my $html = $f->html;
                        die "no html output" unless $html;
                        warn "## html ",length($html)," bytes";
                        $req->print( "$html\n" );
                } else {
                        warn "# can't call request on nothing!";
                }

        };

        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);
        }

        if ($req->conn ) {
                $req->conn->close;
                warn "## close connection: $@";
        }
}

# 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	429	staticp => sub { $_[0]->url =~ m/^(static\|var).\.(jpg\|jpeg\|gif\|png\|css\|ico\|js\|html?\|xml\|json\|ya?ml)(\?.)?$/ },
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	2
65	dpavlin	429	eval {
66	dpavlin	120
67	dpavlin	477	sub refresh {
68			my $url = shift \|\| '/';
69			warn "# refresh $url";
70			qq\|
71			<html>
72			<head>
73	dpavlin	519	<META HTTP-EQUIV="Refresh" CONTENT="2; URL=$url"></META>
74	dpavlin	477	</head>
75			<body>
76			Refresh <a href="$url"><tt>$url</tt></a>
77			</body>
78			</html>
79			\n\r\n\r
80			\|; # XXX newlines at end are important to flush content to browser
81			}
82	dpavlin	2
83	dpavlin	477	if ( $path =~ m{/reload(.*)} ) {
84			Frey::Server->new->load_config;
85	dpavlin	429	Module::Reload->check;
86	dpavlin	477	warn "# reload done";
87			$req->print( refresh( $1 ) );
88			return;
89			} elsif ( $path =~ m{/exit(.*)} ) {
90			# FIXME do we need some kind of check here for production? :-)
91			# ./bin/dev.sh will restart us during development
92			$req->print( refresh( $1 ) );
93			exit;
94	dpavlin	429	}
95	dpavlin	66
96	dpavlin	429	# warn $req->request->header('User_Agent');
97	dpavlin	292
98	dpavlin	429	my %params = $req->params;
99			my $html;
100	dpavlin	292
101	dpavlin	429	sub rest2class {
102			my $class = shift;
103			$class =~ s/-/::/; # sigh!
104			return $class;
105			}
106	dpavlin	277
107	dpavlin	429
108	dpavlin	114	my $f;
109	dpavlin	66
110	dpavlin	407	my $editor = Frey::Editor->new;
111	dpavlin	223
112	dpavlin	421	# shared run params
113			my $run = {
114			request_url => $req->request->url,
115	dpavlin	518	debug => 1,
116	dpavlin	421	};
117
118	dpavlin	292	if (
119			$path =~ m{/Frey[:-]+ObjectBrowser}
120			) {
121	dpavlin	277	$f = Frey::ObjectBrowser->new( fey_class => $params{class} );
122			$f->request( $req );
123	dpavlin	292	} elsif (
124			$path =~ m{/Frey[:-]+ObjectDesigner}
125			) {
126	dpavlin	277	$f = Frey::ObjectDesigner->new( fey_class => $params{class} );
127			$f->request( $req );
128	dpavlin	407	} elsif ( $path =~ $editor->url_regex ) {
129			$req->print( $editor->command( $path ) );
130			system( $editor->command( $path ) );
131	dpavlin	346	return;
132			} elsif (
133	dpavlin	456	$path =~ m{/([^/]+)/(as_\w+)/?([^/]+)?}
134	dpavlin	292	) {
135			my $class = rest2class $1;
136	dpavlin	421	warn "# run $path -> $class $2";
137			$run->{format} = $3 if $3;
138	dpavlin	507	$params{request_url} = $req->request->url;
139	dpavlin	421	$f = Frey::Run->new( class => $class, params => \%params, run => $2, %$run );
140	dpavlin	292	} elsif (
141			$path =~ m{/([^/]+)/?$}
142			) {
143			my $class = rest2class $1;
144			warn "# introspect $class";
145	dpavlin	421	$f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class }, %$run );
146	dpavlin	121	} else {
147	dpavlin	421	$f = Frey::Run->new( class => 'Frey::ClassBrowser', %$run );
148	dpavlin	66	}
149
150	dpavlin	277	if ( $f ) {
151	dpavlin	519	$f->clean_status;
152			$f->add_status( { request => $req } );
153			warn "## status ", dump( map { keys %$_ } $f->status );
154			my $html = $f->html;
155			die "no html output" unless $html;
156			warn "## html ",length($html)," bytes";
157			$req->print( "$html\n" );
158	dpavlin	277	} else {
159			warn "# can't call request on nothing!";
160			}
161
162	dpavlin	66	};
163
164			if ( $@ ) {
165			warn $@;
166	dpavlin	220	$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
167	dpavlin	350	$req->print( qq{<pre class="frey-error">$@<pre>} );
168	dpavlin	190	# Carp::REPL::repl;
169	dpavlin	53	}
170
171	dpavlin	37	# If this is a request for the pushtream, then give them that
172			if($path =~ /pushstream/) {
173			pushstream($req);
174			}
175	dpavlin	121
176	dpavlin	37	# If they are sending us a message, we give them a thread for that too
177			if($path =~ /sendmessage/) {
178			send_message($req);
179			}
180	dpavlin	2
181	dpavlin	520	if ($req->conn ) {
182			$req->conn->close;
183			warn "## close connection: $@";
184			}
185	dpavlin	2	}
186
187			# Here we accept a connection to the browser, and keep it open. Meanwhile we
188			# watch the global $got_message variable, and when it gets touched we send off
189			# the list of messages through the held-open connection. Then we let the
190			# browser open a new connection and begin again.
191			sub pushstream {
192			my ($req) = @_;
193			# Set up watch event -- this will be triggered when $got_message is written
194			my $w = Coro::Event->var(var => \$got_message, poll => 'w');
195			while(1) {
196			print STDERR "** GOT MESSAGE, SENDING **\n";
197			my $log = join "<br>", @messages;
198			$req->print($log);
199			$req->next;
200			print STDERR "** Waiting for got_message indicator **\n";
201			$w->next;
202			}
203			}
204
205
206			# Watch for the user to send us a message. As soon as we get it, we add it to
207			# our list of messages and touch the $got_message flag to let all the
208			# pushstreams know.
209			sub send_message {
210			my ($req) = @_;
211			while(1) {
212			my $msg = $req->param('message');
213			my $name = $req->param('username');
214			if($msg) {
215			unshift @messages, "$name: $msg";
216			pop @messages if $#messages > 15; # Only keep the recent 15 messages
217			}
218			$got_message = 1;
219			$req->print("Got it!");
220			$req->next;
221			}
222			}
223
224	dpavlin	25	1;