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

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Revision 387 - (show annotations)
Mon Nov 17 22:57:51 2008 UTC (15 years, 5 months ago) by dpavlin
File size: 4476 byte(s)
remove annoying read-only vi mode and deal with locking on
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
16 my @messages; # Global (shared) list of messages
17 my $got_message; # Flag to indicate that there is a new message to display
18
19 use vars qw( $repl $server );
20
21 #$repl = Continuity::REPL->new;
22
23 =head1 NAME
24
25 Frey::Server - Continuity based server for Frey
26
27 =head2 DESCRIPTION
28
29 This is one of pissible server implementations for Frey. In it's current stage, it's also most complete one.
30
31 =head2 run
32
33 $o->run( $optional_port );
34
35 =cut
36
37 sub run {
38 my ( $self, $port ) = @_;
39 $server = Continuity->new(
40 port => $port || $self->config->{port} || 16001,
41 path_session => 1,
42 cookie_session => 'sid',
43 callback => \&main,
44 debug_level => 2,
45 staticp => sub { $_[0]->url =~ m/\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$/ },
46 );
47 $Module::Reload::Debug = 1; # auto if debug_level > 1
48 Frey::ClassLoader->new->load_all_classes();
49 $server->loop;
50 }
51
52 =head2 main
53
54 This is simple dispatcher for our server. Currently it's in flux and
55 documented only in source code.
56
57 =cut
58
59 sub main {
60 my ($req) = @_;
61
62 my $path = $req->request->url->path;
63 #warn "REQUEST: $path ",dump( $req->params );
64
65 Module::Reload->check if $path =~ m!reload! || $req->param('reload');
66
67 # warn $req->request->header('User_Agent');
68
69 my %params = $req->params;
70 my $html;
71
72 sub rest2class {
73 my $class = shift;
74 $class =~ s/-/::/; # sigh!
75 return $class;
76 }
77
78
79 eval {
80
81 my $f;
82
83 my $run_regexp = join('|', Frey::Run->runnable );
84
85 if (
86 $path =~ m{/Frey[:-]+ObjectBrowser}
87 ) {
88 $f = Frey::ObjectBrowser->new( fey_class => $params{class} );
89 $f->request( $req );
90 } elsif (
91 $path =~ m{/Frey[:-]+ObjectDesigner}
92 ) {
93 $f = Frey::ObjectDesigner->new( fey_class => $params{class} );
94 $f->request( $req );
95 } elsif (
96 $path =~ m{/editor(.+?)\+(\d+)}
97 ) {
98 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
99 # FIXME SECURITY path verification for $1
100 my $cmd = "$editor +$2 $1";
101 warn "# $path -> system $cmd";
102 $req->print( $cmd );
103 system( $cmd );
104 return;
105 } elsif (
106 $path =~ m{/([^/]+)/($run_regexp)}
107 ) {
108 my $class = rest2class $1;
109 warn "# run $class $2\n";
110 $f = Frey::Run->new( class => $class, params => \%params, run => $2 );
111 } elsif (
112 $path =~ m{/([^/]+)/?$}
113 ) {
114 my $class = rest2class $1;
115 warn "# introspect $class";
116 $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class } );
117 } else {
118 $f = Frey::Run->new( class => 'Frey::ClassBrowser' );
119 }
120
121 if ( $f ) {
122 $req->print( $f->html );
123 } else {
124 warn "# can't call request on nothing!";
125 }
126
127 };
128
129 my $self = $req;
130
131 if ( $@ ) {
132 warn $@;
133 $req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
134 $req->print( qq{<pre class="frey-error">$@<pre>} );
135 # Carp::REPL::repl;
136
137 }
138
139 # If this is a request for the pushtream, then give them that
140 if($path =~ /pushstream/) {
141 pushstream($req);
142 }
143
144 # If they are sending us a message, we give them a thread for that too
145 if($path =~ /sendmessage/) {
146 send_message($req);
147 }
148
149 }
150
151 # Here we accept a connection to the browser, and keep it open. Meanwhile we
152 # watch the global $got_message variable, and when it gets touched we send off
153 # the list of messages through the held-open connection. Then we let the
154 # browser open a new connection and begin again.
155 sub pushstream {
156 my ($req) = @_;
157 # Set up watch event -- this will be triggered when $got_message is written
158 my $w = Coro::Event->var(var => \$got_message, poll => 'w');
159 while(1) {
160 print STDERR "**** GOT MESSAGE, SENDING ****\n";
161 my $log = join "<br>", @messages;
162 $req->print($log);
163 $req->next;
164 print STDERR "**** Waiting for got_message indicator ****\n";
165 $w->next;
166 }
167 }
168
169
170 # Watch for the user to send us a message. As soon as we get it, we add it to
171 # our list of messages and touch the $got_message flag to let all the
172 # pushstreams know.
173 sub send_message {
174 my ($req) = @_;
175 while(1) {
176 my $msg = $req->param('message');
177 my $name = $req->param('username');
178 if($msg) {
179 unshift @messages, "$name: $msg";
180 pop @messages if $#messages > 15; # Only keep the recent 15 messages
181 }
182 $got_message = 1;
183 $req->print("Got it!");
184 $req->next;
185 }
186 }
187
188 1;

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