/[Frey]/trunk/lib/Frey/Server.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 37 by dpavlin, Mon Jun 30 20:02:06 2008 UTC revision 314 by dpavlin, Wed Nov 5 20:18:33 2008 UTC
# Line 1  Line 1 
1  package Frey::Server;  package Frey::Server;
2    
3  use strict;  use Moose;
4  use warnings;  
5    with 'Frey::Web';
6    
7  use Continuity;  use Continuity;
8  #use Continuity::REPL;  #use Continuity::REPL;
9  use Data::Dump qw/dump/;  use Data::Dump qw/dump/;
10    
11  use base 'Frey';  #use Carp::REPL; ## XXX it would be nice, but it breaks error reporting too much
12  use Frey::HTML;  use Frey::ClassLoader;
13    use Frey::Run;
14    
15  my @messages;    # Global (shared) list of messages  my @messages;    # Global (shared) list of messages
16  my $got_message; # Flag to indicate that there is a new message to display  my $got_message; # Flag to indicate that there is a new message to display
# Line 16  my $got_message; # Flag to indicate that Line 18  my $got_message; # Flag to indicate that
18  use vars qw( $repl $server );  use vars qw( $repl $server );
19    
20  #$repl = Continuity::REPL->new;  #$repl = Continuity::REPL->new;
21  $server = Continuity->new(  
22          port => 16001,  =head1 NAME
23          path_session => 1,  
24          cookie_session => 'sid',  Frey::Server - Continuity based server for Frey
25          callback => \&main,  
26  );  =head2 DESCRIPTION
27  $server->debug_level( 2 );  
28    This is one of pissible server implementations for Frey. In it's current stage, it's also most complete one.
29    
30    =head2 run
31    
32      $o->run( $optional_port );
33    
34    =cut
35    
36  sub run {  sub run {
37            my ( $self, $port ) = @_;
38            $server = Continuity->new(
39                    port => $port || 16001,
40                    path_session => 1,
41                    cookie_session => 'sid',
42                    callback => \&main,
43                    debug_level => 2,
44                    staticp => sub { $_[0]->url =~ m/\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$/ },
45            );
46            $Module::Reload::Debug = 1; # auto if debug_level > 1
47            Frey::ClassLoader->new->load_all_classes();
48          $server->loop;          $server->loop;
49  }  }
50    
51  my @callbacks;  =head2 main
 my $callback_count;  
52    
53  sub gen_link {  This is simple dispatcher for our server. Currently it's in flux and
54          my ($text, $code) = @_;  documented only in source code.
         $callbacks[$callback_count] = $code;  
         my $out = qq{<a href="?cb=$callback_count">$text</a>};  
         $callback_count++;  
         return $out;  
 }  
55    
56  sub process_links {  =cut
         my $request = shift;  
         my $cb = $request->param('cb');  
         if (exists $callbacks[$cb]) {  
                 $callbacks[$cb]->($request);  
 #               delete $callbacks[$cb];  
         }  
 }  
57    
 # This is the main entrypoint. We are looking for one of three things -- a  
 # pushstream, a sent message, or a request for the main HTML. We delegate each  
 # of these cases, none of which will return (they all loop forever).  
58  sub main {  sub main {
59          my ($req) = @_;          my ($req) = @_;
60      
61          my $path = $req->request->url->path;          my $path = $req->request->url->path;
62          warn "REQUEST: $path\n";          #warn "REQUEST: $path ",dump( $req->params );
63    
64            Module::Reload->check if $path =~ m!reload! || $req->param('reload');
65    
66    #       warn $req->request->header('User_Agent');
67    
68            my %params = $req->params;
69            my $html;
70    
71            sub rest2class {
72                    my $class = shift;
73                    $class =~ s/-/::/; # sigh!
74                    return $class;
75            }
76    
77    
78            eval {
79    
80                    my $f;
81    
82                    my $run_regexp = join('|', Frey::Run->runnable );
83    
84          warn $req->request->header('User_Agent');                  if (
85  #warn dump( $req );                          $path =~ m{/Frey[:-]+ObjectBrowser}
86                    ) {
87                            $f = Frey::ObjectBrowser->new( fey_class => $params{class} );
88                            $f->request( $req );
89                    } elsif (
90                            $path =~ m{/Frey[:-]+ObjectDesigner}
91                    ) {
92                            $f = Frey::ObjectDesigner->new( fey_class => $params{class} );
93                            $f->request( $req );
94                    } elsif (
95                            $path =~ m{/([^/]+)/($run_regexp)}
96                    ) {
97                            my $class = rest2class $1;
98                            warn "# run $class $2\n";
99                            $f = Frey::Run->new( class => $class, params => \%params );
100                    } elsif (
101                            $path =~ m{/([^/]+)/?$}
102                    ) {
103                            my $class = rest2class $1;
104                            warn "# introspect $class";
105                            $f = Frey::Run->new( class => 'Frey::Introspect', params => { class => $class } );
106                    } else {
107                            $f = Frey::Run->new( class => 'Frey::ClassBrowser' );
108                    }
109    
110                    if ( $f ) {
111                            $req->print( $f->html );
112                    } else {
113                            warn "# can't call request on nothing!";
114                    }
115    
116            };
117    
118            my $self = $req;
119    
120            if ( $@ ) {
121                    warn $@;
122                    $req->conn->send_error( 404 );  # FIXME this should probably be 500, but we can't ship page with it
123                    $req->print( qq{<pre class="error">$@<pre>} );
124    #               Carp::REPL::repl;
125    
126            }
127    
128          # If this is a request for the pushtream, then give them that          # If this is a request for the pushtream, then give them that
129          if($path =~ /pushstream/) {          if($path =~ /pushstream/) {
130                  pushstream($req);                  pushstream($req);
131          }          }
132      
133          # If they are sending us a message, we give them a thread for that too          # If they are sending us a message, we give them a thread for that too
134          if($path =~ /sendmessage/) {          if($path =~ /sendmessage/) {
135                  send_message($req);                  send_message($req);
136          }          }
137    
         if ( $path =~ m/test/ ) {  
                 use Data::Dumper;  
                 $Data::Dumper::Deparse = 1;  
   
                 my $x = 0;  
                 my $continue = 1;  
                 my $link1 = gen_link('+' => sub { $x++ });  
                 my $link2 = gen_link('-' => sub { $x-- });  
                 my $out = gen_link('X' => sub { $continue = 0 });  
                 while ( $continue ) {  
                         warn "## x = $x ",dump( $req->params );  
                         $req->print("\$x is now: $x");  
                         $req->print($link1, ' ', $link2, ' ', $out);  
                         $req->print('<pre>'.Dumper( @callbacks ).'</pre>');  
                         $req->next;  
                         process_links($req);  
                 }  
         }  
   
         # Otherwise, lets give them page  
         send_page($req);  
138  }  }
139    
140  # Here we accept a connection to the browser, and keep it open. Meanwhile we  # Here we accept a connection to the browser, and keep it open. Meanwhile we
# Line 130  sub send_message { Line 174  sub send_message {
174    }    }
175  }  }
176    
 # This isn't a pushstream, nor a new message. It is just the main page. We loop  
 # in case they ask for it multiple times :)  
 sub send_page {  
         my ($req) = @_;  
         my $templates = Template::Declare->templates;  
         while(1) {  
                 warn "param = ",dump($req->param);  
                 my $path = $req->request->url->path;  
   
                 my $html;  
   
                 if ( $path =~ m/::/ ) {  
                         my ( undef, $module, $method ) = split(m!/!, $path, 3);  
   
                         if ( ! defined( $templates->{$module} ) ) {  
                                 $req->conn->send_status_line( 404, "$module" );  
                                 $html = "Package $module not found";  
                         } elsif ( ! $method ) {  
                                 $html = Frey::HTML->page( 'package-methods', $req, $module );  
                         } elsif ( grep(/^\Q$method\E$/, @{ $templates->{$module} }) ) {  
                                 $html = Frey::HTML->page( $method, $req );  
                         } else {  
                                 $req->conn->send_status_line( 404, "$module $method" );  
                                 $html = "Package $module doesn't have $method";  
                         }  
                 } else {  
                         warn "fallback to status page\n";  
                         $html = Frey::HTML->page( 'status' );  
                 }  
   
                 $req->print( $html );  
                 warn ">> ",length( $html ), " bytes\n";  
                 $req->next;  
         }  
 }  
   
177  1;  1;
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