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

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Revision 507 - (show annotations)
Tue Nov 25 00:26:15 2008 UTC (15 years, 5 months ago) by dpavlin
File size: 5166 byte(s)
new add_status to add data to status line (not working fully yet)
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 { $_[0]->url =~ m/^(static|var).*\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$/ },
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
65 eval {
66
67 sub refresh {
68 my $url = shift || '/';
69 warn "# refresh $url";
70 qq|
71 <html>
72 <head>
73 <META HTTP-EQUIV="Refresh" CONTENT="1; URL=$url"></META>
74 </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
83 if ( $path =~ m{/reload(.*)} ) {
84 Frey::Server->new->load_config;
85 Module::Reload->check;
86 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 }
95
96 # warn $req->request->header('User_Agent');
97
98 my %params = $req->params;
99 my $html;
100
101 sub rest2class {
102 my $class = shift;
103 $class =~ s/-/::/; # sigh!
104 return $class;
105 }
106
107
108 my $f;
109
110 my $editor = Frey::Editor->new;
111
112 # shared run params
113 my $run = {
114 request_url => $req->request->url,
115 };
116
117 if (
118 $path =~ m{/Frey[:-]+ObjectBrowser}
119 ) {
120 $f = Frey::ObjectBrowser->new( fey_class => $params{class} );
121 $f->request( $req );
122 } elsif (
123 $path =~ m{/Frey[:-]+ObjectDesigner}
124 ) {
125 $f = Frey::ObjectDesigner->new( fey_class => $params{class} );
126 $f->request( $req );
127 } elsif ( $path =~ $editor->url_regex ) {
128 $req->print( $editor->command( $path ) );
129 system( $editor->command( $path ) );
130 return;
131 } elsif (
132 $path =~ m{/([^/]+)/(as_\w+)/?([^/]+)?}
133 ) {
134 my $class = rest2class $1;
135 warn "# run $path -> $class $2";
136 $run->{format} = $3 if $3;
137 $params{request_url} = $req->request->url;
138 $f = Frey::Run->new( class => $class, params => \%params, run => $2, %$run );
139 } elsif (
140 $path =~ m{/([^/]+)/?$}
141 ) {
142 my $class = rest2class $1;
143 warn "# introspect $class";
144 $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class }, %$run );
145 } else {
146 $f = Frey::Run->new( class => 'Frey::ClassBrowser', %$run );
147 }
148
149 if ( $f ) {
150 $f->add_status( { req => $req } );
151 $req->print( $f->html );
152 } else {
153 warn "# can't call request on nothing!";
154 }
155
156 };
157
158 if ( $@ ) {
159 warn $@;
160 $req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
161 $req->print( qq{<pre class="frey-error">$@<pre>} );
162 # Carp::REPL::repl;
163 }
164
165 # If this is a request for the pushtream, then give them that
166 if($path =~ /pushstream/) {
167 pushstream($req);
168 }
169
170 # If they are sending us a message, we give them a thread for that too
171 if($path =~ /sendmessage/) {
172 send_message($req);
173 }
174
175 }
176
177 # Here we accept a connection to the browser, and keep it open. Meanwhile we
178 # watch the global $got_message variable, and when it gets touched we send off
179 # the list of messages through the held-open connection. Then we let the
180 # browser open a new connection and begin again.
181 sub pushstream {
182 my ($req) = @_;
183 # Set up watch event -- this will be triggered when $got_message is written
184 my $w = Coro::Event->var(var => \$got_message, poll => 'w');
185 while(1) {
186 print STDERR "**** GOT MESSAGE, SENDING ****\n";
187 my $log = join "<br>", @messages;
188 $req->print($log);
189 $req->next;
190 print STDERR "**** Waiting for got_message indicator ****\n";
191 $w->next;
192 }
193 }
194
195
196 # Watch for the user to send us a message. As soon as we get it, we add it to
197 # our list of messages and touch the $got_message flag to let all the
198 # pushstreams know.
199 sub send_message {
200 my ($req) = @_;
201 while(1) {
202 my $msg = $req->param('message');
203 my $name = $req->param('username');
204 if($msg) {
205 unshift @messages, "$name: $msg";
206 pop @messages if $#messages > 15; # Only keep the recent 15 messages
207 }
208 $got_message = 1;
209 $req->print("Got it!");
210 $req->next;
211 }
212 }
213
214 1;

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