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

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Revision 533 - (show annotations)
Wed Nov 26 07:58:05 2008 UTC (15 years, 5 months ago) by dpavlin
File size: 5514 byte(s)
configurable refresh time and output it
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 {
47 $_[0]->url =~ m{^/+(static|var).*\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$}
48 },
49 );
50 $Module::Reload::Debug = 1; # auto if debug_level > 1
51 Frey::ClassLoader->new->load_all_classes();
52 $server->loop;
53 }
54
55 =head2 main
56
57 This is simple dispatcher for our server. Currently it's in flux and
58 documented only in source code.
59
60 =cut
61
62 sub main {
63 my ($req) = @_;
64
65 my $path = $req->request->url->path;
66
67 eval {
68
69 sub refresh {
70 my ( $url, $time ) = @_;
71 $url ||= '/';
72 $time ||= 1;
73 warn "# refresh $url";
74 qq|
75 <html>
76 <head>
77 <META HTTP-EQUIV="Refresh" CONTENT="$time; URL=$url"></META>
78 </head>
79 <body>
80 Refresh <a href="$url"><tt>$url</tt></a> in $time sec
81 </body>
82 </html>
83 \n\r\n\r
84 |; # XXX newlines at end are important to flush content to browser
85 }
86
87 if ( $path =~ m{/reload(.*)} ) {
88 Frey::Server->new->load_config;
89 Module::Reload->check;
90 warn "# reload done";
91 $req->print( refresh( $1, 1 ) );
92 return;
93 } elsif ( $path =~ m{/exit(.*)} ) {
94 # FIXME do we need some kind of check here for production? :-)
95 # ./bin/dev.sh will restart us during development
96 $req->print( refresh( $1, 2 ) );
97 exit;
98 }
99
100 # warn $req->request->header('User_Agent');
101
102 my %params = $req->params;
103 my $html;
104
105 sub rest2class {
106 my $class = shift;
107 $class =~ s/-/::/; # sigh!
108 return $class;
109 }
110
111
112 my $f;
113
114 my $editor = Frey::Editor->new;
115
116 # shared run params
117 my $run = {
118 request_url => $req->request->url,
119 debug => 1,
120 };
121
122 if (
123 $path =~ m{/Frey[:-]+ObjectBrowser}
124 ) {
125 $f = Frey::ObjectBrowser->new( fey_class => $params{class} );
126 $f->request( $req );
127 } elsif (
128 $path =~ m{/Frey[:-]+ObjectDesigner}
129 ) {
130 $f = Frey::ObjectDesigner->new( fey_class => $params{class} );
131 $f->request( $req );
132 } elsif ( $path =~ $editor->url_regex ) {
133 $req->print( $editor->command( $path ) );
134 system( $editor->command( $path ) );
135 return;
136 } elsif (
137 $path =~ m{/([^/]+)/(as_\w+)/?([^/]+)?}
138 ) {
139 my $class = rest2class $1;
140 warn "# run $path -> $class $2";
141 $run->{format} = $3 if $3;
142 $params{request_url} = $req->request->url;
143 $f = Frey::Run->new( class => $class, params => \%params, run => $2, %$run );
144 } elsif (
145 $path =~ m{/([^/]+)/?$}
146 ) {
147 my $class = rest2class $1;
148 warn "# introspect $class";
149 $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class }, %$run );
150 } else {
151 $f = Frey::Run->new( class => 'Frey::ClassBrowser', %$run );
152 }
153
154 if ( $f ) {
155 $f->clean_status;
156 $f->add_status( { request => $req } );
157 warn "## status ", dump( map { keys %$_ } $f->status );
158 my $html = $f->html;
159 die "no html output" unless $html;
160 warn "## html ",length($html)," bytes";
161 $req->print( "$html\n" );
162 } else {
163 warn "# can't call request on nothing!";
164 }
165
166 };
167
168 if ( $@ ) {
169 warn $@;
170 $req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
171 $req->print( qq{<pre class="frey-error">$@<pre>} );
172 # Carp::REPL::repl;
173 }
174
175 # If this is a request for the pushtream, then give them that
176 if($path =~ /pushstream/) {
177 pushstream($req);
178 }
179
180 # If they are sending us a message, we give them a thread for that too
181 if($path =~ /sendmessage/) {
182 send_message($req);
183 }
184
185 if ($req->conn ) {
186 $req->conn->close;
187 warn "## close connection: $@";
188 }
189 }
190
191 # Here we accept a connection to the browser, and keep it open. Meanwhile we
192 # watch the global $got_message variable, and when it gets touched we send off
193 # the list of messages through the held-open connection. Then we let the
194 # browser open a new connection and begin again.
195 sub pushstream {
196 my ($req) = @_;
197 # Set up watch event -- this will be triggered when $got_message is written
198 my $w = Coro::Event->var(var => \$got_message, poll => 'w');
199 while(1) {
200 print STDERR "**** GOT MESSAGE, SENDING ****\n";
201 my $log = join "<br>", @messages;
202 $req->print($log);
203 $req->next;
204 print STDERR "**** Waiting for got_message indicator ****\n";
205 $w->next;
206 }
207 }
208
209
210 # Watch for the user to send us a message. As soon as we get it, we add it to
211 # our list of messages and touch the $got_message flag to let all the
212 # pushstreams know.
213 sub send_message {
214 my ($req) = @_;
215 while(1) {
216 my $msg = $req->param('message');
217 my $name = $req->param('username');
218 if($msg) {
219 unshift @messages, "$name: $msg";
220 pop @messages if $#messages > 15; # Only keep the recent 15 messages
221 }
222 $got_message = 1;
223 $req->print("Got it!");
224 $req->next;
225 }
226 }
227
228 1;

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