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

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Revision 618 - (show annotations)
Sat Nov 29 15:19:43 2008 UTC (15 years, 5 months ago) by dpavlin
File size: 6025 byte(s)
fix double editor open
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 our $editor = Frey::Editor->new;
39
40 sub run {
41 my ( $self, $port ) = @_;
42 $server = Continuity->new(
43 port => $port || $self->config->{port} || 16001,
44 path_session => 1,
45 cookie_session => 'sid',
46 callback => \&main,
47 debug_level => 2,
48 staticp => sub {
49 $_[0]->url =~ m{^/+(static|var).*\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$}
50 },
51 );
52 $Module::Reload::Debug = 1; # auto if debug_level > 1
53 Frey::ClassLoader->new->load_all_classes();
54 $editor->switch_screen if $ENV{FREY_SWITCH_SCREEN};
55 $server->loop;
56 }
57
58 =head2 main
59
60 This is simple dispatcher for our server. Currently it's in flux and
61 documented only in source code.
62
63 =cut
64
65 sub main {
66 my ($req) = @_;
67
68 # $req->send_headers("X-Frey-VERSION: $Frey::VERSION");
69
70 my $path = $req->request->url->path;
71
72 eval {
73
74 if ( $path =~ m{/reload(.*)} ) {
75
76 $ENV{FREY_NO_LOG} = 1;
77 my $cmd = "perl -c $0";
78 warn "# check config with $cmd";
79 if ( system($cmd) == 0 ) {
80 $req->print( "\r\n" );
81 my $server = Frey::Server->new;
82 $server->load_config;
83 $req->print( "\r\n" );
84 Module::Reload->check;
85 $req->print( "\r\n" );
86 $req->print( refresh( $1, 1 ) );
87 $req->print( "\r\n" );
88 warn "# reload done";
89 return;
90 } else {
91 warn "ERROR: $?";
92 }
93 $ENV{FREY_NO_LOG} = 0;
94
95 } elsif ( $path =~ m{/exit(.*)} ) {
96 # FIXME do we need some kind of check here for production? :-)
97 # ./bin/dev.sh will restart us during development
98 $req->print( refresh( $1, 2 ) );
99 $req->print( "\r\n" );
100 exit;
101 }
102
103 # warn $req->request->header('User_Agent');
104
105 my %params = $req->params;
106 my $html;
107
108 sub rest2class {
109 my $class = shift;
110 $class =~ s/-/::/; # sigh!
111 return $class;
112 }
113
114
115 my $f;
116
117 # shared run params
118 my $run = {
119 request_url => $req->request->url,
120 debug => 1,
121 };
122
123 if (
124 $path =~ m{/Frey[:-]+ObjectBrowser}
125 ) {
126 $f = Frey::ObjectBrowser->new( fey_class => $params{class} );
127 $f->request( $req );
128 } elsif (
129 $path =~ m{/Frey[:-]+ObjectDesigner}
130 ) {
131 $f = Frey::ObjectDesigner->new( fey_class => $params{class} );
132 $f->request( $req );
133 } elsif ( $path =~ $editor->url_regex ) {
134 $req->print( $editor->command( $path ) );
135 return;
136 } elsif (
137 $path =~ m{/([^/]+)/(\w*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 $req->print( "\r\n\r\n" ); # send something to browser so we don't time-out
144 $f = Frey::Run->new( class => $class, params => \%params, run => $2, %$run );
145 } elsif (
146 $path =~ m{/([^/]+)/?$}
147 ) {
148 my $class = rest2class $1;
149 warn "# introspect $class";
150 $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class }, %$run );
151 } else {
152 $f = Frey::Run->new( class => 'Frey::ClassBrowser', %$run );
153 }
154
155 if ( $f ) {
156 $f->clean_status;
157 $f->add_status( { request => $req } );
158 $f->status_parts;
159 if ( my $html = $f->html ) {
160 warn "## html ",length($html)," bytes";
161 $req->print( $html );
162 } else {
163 confess "no output from $f";
164 }
165 } else {
166 confess "# can't call request on nothing!";
167 }
168
169 };
170
171 if ( $@ ) {
172 warn "SERVER ERROR: $@";
173 # $req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
174 $req->print( qq{<pre class="frey-error">$@<pre>\r\n\r\n} );
175 # Carp::REPL::repl;
176 }
177
178 # If this is a request for the pushtream, then give them that
179 if($path =~ /pushstream/) {
180 pushstream($req);
181 }
182
183 # If they are sending us a message, we give them a thread for that too
184 if($path =~ /sendmessage/) {
185 send_message($req);
186 }
187
188 if ( $req->conn ) {
189 $req->print( "\r\n" ); # flush
190 $req->conn->close;
191 warn "## close connection: $@";
192 }
193 }
194
195 # Here we accept a connection to the browser, and keep it open. Meanwhile we
196 # watch the global $got_message variable, and when it gets touched we send off
197 # the list of messages through the held-open connection. Then we let the
198 # browser open a new connection and begin again.
199 sub pushstream {
200 my ($req) = @_;
201 # Set up watch event -- this will be triggered when $got_message is written
202 my $w = Coro::Event->var(var => \$got_message, poll => 'w');
203 while(1) {
204 print STDERR "**** GOT MESSAGE, SENDING ****\n";
205 my $log = join "<br>", @messages;
206 $req->print($log);
207 $req->next;
208 print STDERR "**** Waiting for got_message indicator ****\n";
209 $w->next;
210 }
211 }
212
213
214 # Watch for the user to send us a message. As soon as we get it, we add it to
215 # our list of messages and touch the $got_message flag to let all the
216 # pushstreams know.
217 sub send_message {
218 my ($req) = @_;
219 while(1) {
220 my $msg = $req->param('message');
221 my $name = $req->param('username');
222 if($msg) {
223 unshift @messages, "$name: $msg";
224 pop @messages if $#messages > 15; # Only keep the recent 15 messages
225 }
226 $got_message = 1;
227 $req->print("Got it!");
228 $req->next;
229 }
230 }
231
232 sub refresh {
233 my ( $url, $time ) = @_;
234 $url ||= '/';
235 $time ||= 1;
236 warn "# refresh $url";
237 qq|
238 <html>
239 <head>
240 <META HTTP-EQUIV="Refresh" CONTENT="$time; URL=$url"></META>
241 </head>
242 <body>
243 Refresh <a href="$url"><tt>$url</tt></a> in $time sec
244 </body>
245 </html>
246 \n\r\n\r
247 |; # XXX newlines at end are important to flush content to browser
248 }
249
250 1;

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