/[Frey]/trunk/lib/Frey/Server.pm
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Contents of /trunk/lib/Frey/Server.pm

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Revision 407 - (show annotations)
Tue Nov 18 12:02:57 2008 UTC (15 years, 5 months ago) by dpavlin
File size: 4467 byte(s)
platform-specific editor stuff is not in Frey::Editor
1 package Frey::Server;
2
3 use Moose;
4 extends 'Frey';
5 with 'Frey::Web';
6 with 'Frey::Config';
7
8 use Continuity;
9 #use Continuity::REPL;
10 use Data::Dump qw/dump/;
11
12 #use Carp::REPL; ## XXX it would be nice, but it breaks error reporting too much
13 use Frey::ClassLoader;
14 use Frey::Run;
15 use Frey::Editor;
16
17 my @messages; # Global (shared) list of messages
18 my $got_message; # Flag to indicate that there is a new message to display
19
20 use vars qw( $repl $server );
21
22 #$repl = Continuity::REPL->new;
23
24 =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 sub run {
39 my ( $self, $port ) = @_;
40 $server = Continuity->new(
41 port => $port || $self->config->{port} || 16001,
42 path_session => 1,
43 cookie_session => 'sid',
44 callback => \&main,
45 debug_level => 2,
46 staticp => sub { $_[0]->url =~ m/\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$/ },
47 );
48 $Module::Reload::Debug = 1; # auto if debug_level > 1
49 Frey::ClassLoader->new->load_all_classes();
50 $server->loop;
51 }
52
53 =head2 main
54
55 This is simple dispatcher for our server. Currently it's in flux and
56 documented only in source code.
57
58 =cut
59
60 sub main {
61 my ($req) = @_;
62
63 my $path = $req->request->url->path;
64 #warn "REQUEST: $path ",dump( $req->params );
65
66 Module::Reload->check if $path =~ m!reload! || $req->param('reload');
67
68 # warn $req->request->header('User_Agent');
69
70 my %params = $req->params;
71 my $html;
72
73 sub rest2class {
74 my $class = shift;
75 $class =~ s/-/::/; # sigh!
76 return $class;
77 }
78
79
80 eval {
81
82 my $f;
83
84 my $run_regexp = join('|', Frey::Run->runnable );
85 my $editor = Frey::Editor->new;
86
87 if (
88 $path =~ m{/Frey[:-]+ObjectBrowser}
89 ) {
90 $f = Frey::ObjectBrowser->new( fey_class => $params{class} );
91 $f->request( $req );
92 } elsif (
93 $path =~ m{/Frey[:-]+ObjectDesigner}
94 ) {
95 $f = Frey::ObjectDesigner->new( fey_class => $params{class} );
96 $f->request( $req );
97 } elsif ( $path =~ $editor->url_regex ) {
98 $req->print( $editor->command( $path ) );
99 system( $editor->command( $path ) );
100 return;
101 } elsif (
102 $path =~ m{/([^/]+)/($run_regexp)}
103 ) {
104 my $class = rest2class $1;
105 warn "# run $class $2\n";
106 $f = Frey::Run->new( class => $class, params => \%params, run => $2, request_url => $req->request->url );
107 } elsif (
108 $path =~ m{/([^/]+)/?$}
109 ) {
110 my $class = rest2class $1;
111 warn "# introspect $class";
112 $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class }, request_url => $req->request->url );
113 } else {
114 $f = Frey::Run->new( class => 'Frey::ClassBrowser' );
115 }
116
117 if ( $f ) {
118 $req->print( $f->html );
119 } else {
120 warn "# can't call request on nothing!";
121 }
122
123 };
124
125 my $self = $req;
126
127 if ( $@ ) {
128 warn $@;
129 $req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
130 $req->print( qq{<pre class="frey-error">$@<pre>} );
131 # Carp::REPL::repl;
132
133 }
134
135 # If this is a request for the pushtream, then give them that
136 if($path =~ /pushstream/) {
137 pushstream($req);
138 }
139
140 # 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
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 1;

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