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

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Revision 179 - (show annotations)
Sun Aug 31 17:44:03 2008 UTC (15 years, 8 months ago) by dpavlin
File size: 4155 byte(s)
- factor out run_markup which will display output of markup
  or form for required fields
- remove /pod/ dispatcher which was unused (and now works as
  /markup/Frey::Pod?class=Frey anyway)
1 package Frey::Server;
2
3 use Moose;
4
5 with 'Frey::Web';
6
7 use Continuity;
8 #use Continuity::REPL;
9 use Data::Dump qw/dump/;
10
11 use Carp::REPL;
12 use Frey::ClassLoader;
13
14 my @messages; # Global (shared) list of messages
15 my $got_message; # Flag to indicate that there is a new message to display
16
17 use vars qw( $repl $server );
18
19 #$repl = Continuity::REPL->new;
20
21 sub run {
22 my ( $self, $port ) = @_;
23 $server = Continuity->new(
24 port => $port || 16001,
25 path_session => 1,
26 cookie_session => 'sid',
27 callback => \&main,
28 debug_level => 1,
29 staticp => sub { $_[0]->url =~ m/\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$/ },
30 );
31 $Module::Reload::Debug = 1;
32 Frey::ClassLoader->new->load_all_classes();
33 $server->loop;
34 }
35
36 # This is the main entrypoint. We are looking for one of three things -- a
37 # pushstream, a sent message, or a request for the main HTML. We delegate each
38 # of these cases, none of which will return (they all loop forever).
39 sub main {
40 my ($req) = @_;
41
42 my $path = $req->request->url->path;
43 warn "REQUEST: $path ",dump( $req->params ),"\n";
44
45 Module::Reload->check if $path =~ m!reload! || $req->param('reload');
46
47 # warn $req->request->header('User_Agent');
48
49 sub run_markup {
50 my ( $req, $class ) = @_;
51
52 my %params = $req->params;
53
54 my @required =
55 grep {
56 defined $_ && !defined( $params{$_} )
57 }
58 map {
59 my $attr = $class->meta->get_attribute($_);
60 $attr->is_required && $_
61 } $class->meta->get_attribute_list;
62
63 warn "## required = ",dump( @required );
64 warn "## params = ",dump( %params );
65
66 my $html;
67
68 if ( @required ) {
69 $html = qq|<form method="post">|;
70 $html .= qq|<input type="text" name="$_">| foreach @required;
71 $html .= qq|<input type="submit" value="Run $class"></form>|;
72 } else {
73 my $o = $class->new( %params );
74 $o->depends if $o->can('depends');
75 $html = $o->markup;
76 }
77
78 warn ">>> markup $class ",length( $html ), " bytes\n";
79 return $html;
80 }
81
82
83 # eval {
84 {
85
86 my $f;
87
88 if ( $path =~ m!/~/([^/]+)(.*)! ) {
89 $f = Frey::Introspect->new( package => $1 );
90 } elsif ( $path =~ m!/ob/([^/]+)(.*)! ) {
91 $f = Frey::ObjectBrowser->new( fey_class => $1 );
92 } elsif ( $path =~ m!/od/([^/]+)(.*)! ) {
93 $f = Frey::ObjectDesigner->new( fey_class => $1 );
94 } elsif ( $path =~ m!/markup/([^/]+)(.*)! ) {
95 $req->print( run_markup( $req, $1 ) );
96 } else {
97 $f = Frey::ClassBrowser->new;
98 }
99 $f->html( $req ) if $f;
100
101 };
102
103 if ( $@ ) {
104 warn $@;
105 #$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
106 $req->print( qq{<pre class="error">$@<pre>} );
107 Carp::REPL::repl; # FIXME if $self->debug
108
109 }
110
111 # If this is a request for the pushtream, then give them that
112 if($path =~ /pushstream/) {
113 pushstream($req);
114 }
115
116 if ( $path =~ m/die/ ) {
117 Carp::REPL::repl; # FIXME if $self->debug
118 }
119
120 # If they are sending us a message, we give them a thread for that too
121 if($path =~ /sendmessage/) {
122 send_message($req);
123 }
124
125 }
126
127 # Here we accept a connection to the browser, and keep it open. Meanwhile we
128 # watch the global $got_message variable, and when it gets touched we send off
129 # the list of messages through the held-open connection. Then we let the
130 # browser open a new connection and begin again.
131 sub pushstream {
132 my ($req) = @_;
133 # Set up watch event -- this will be triggered when $got_message is written
134 my $w = Coro::Event->var(var => \$got_message, poll => 'w');
135 while(1) {
136 print STDERR "**** GOT MESSAGE, SENDING ****\n";
137 my $log = join "<br>", @messages;
138 $req->print($log);
139 $req->next;
140 print STDERR "**** Waiting for got_message indicator ****\n";
141 $w->next;
142 }
143 }
144
145
146 # Watch for the user to send us a message. As soon as we get it, we add it to
147 # our list of messages and touch the $got_message flag to let all the
148 # pushstreams know.
149 sub send_message {
150 my ($req) = @_;
151 while(1) {
152 my $msg = $req->param('message');
153 my $name = $req->param('username');
154 if($msg) {
155 unshift @messages, "$name: $msg";
156 pop @messages if $#messages > 15; # Only keep the recent 15 messages
157 }
158 $got_message = 1;
159 $req->print("Got it!");
160 $req->next;
161 }
162 }
163
164 1;

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