/[Frey]/trunk/lib/Frey/Server.pm
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revision 37 by dpavlin, Mon Jun 30 20:02:06 2008 UTC revision 213 by dpavlin, Fri Oct 31 19:51:51 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    
14  my @messages;    # Global (shared) list of messages  my @messages;    # Global (shared) list of messages
15  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 17  my $got_message; # Flag to indicate that
17  use vars qw( $repl $server );  use vars qw( $repl $server );
18    
19  #$repl = Continuity::REPL->new;  #$repl = Continuity::REPL->new;
20  $server = Continuity->new(  
21          port => 16001,  =head1 NAME
22          path_session => 1,  
23          cookie_session => 'sid',  Frey::Server - Continuity based server for Frey
24          callback => \&main,  
25  );  =head2 DESCRIPTION
26  $server->debug_level( 2 );  
27    This is one of pissible server implementations for Frey. In it's current stage, it's also most complete one.
28    
29    =head2 run
30    
31      $o->run( $optional_port );
32    
33    =cut
34    
35  sub run {  sub run {
36            my ( $self, $port ) = @_;
37            $server = Continuity->new(
38                    port => $port || 16001,
39                    path_session => 1,
40                    cookie_session => 'sid',
41                    callback => \&main,
42                    debug_level => 2,
43                    staticp => sub { $_[0]->url =~ m/\.(jpg|jpeg|gif|png|css|ico|js|html?|xml|json|ya?ml)(\?.*)?$/ },
44            );
45            $Module::Reload::Debug = 1; # auto if debug_level > 1
46            Frey::ClassLoader->new->load_all_classes();
47          $server->loop;          $server->loop;
48  }  }
49    
50  my @callbacks;  =head2 main
 my $callback_count;  
51    
52  sub gen_link {  This is simple dispatcher for our server. Currently it's in flux and
53          my ($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;  
 }  
54    
55  sub process_links {  =cut
         my $request = shift;  
         my $cb = $request->param('cb');  
         if (exists $callbacks[$cb]) {  
                 $callbacks[$cb]->($request);  
 #               delete $callbacks[$cb];  
         }  
 }  
56    
 # 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).  
57  sub main {  sub main {
58          my ($req) = @_;          my ($req) = @_;
59      
60          my $path = $req->request->url->path;          my $path = $req->request->url->path;
61          warn "REQUEST: $path\n";          warn "REQUEST: $path ",dump( $req->params ),"\n";
62    
63            Module::Reload->check if $path =~ m!reload! || $req->param('reload');
64    
65    #       warn $req->request->header('User_Agent');
66    
67    #       eval {
68            {
69    
70                    my $f;
71    
72                    if ( $path =~ m!/~/([^/]+)(.*)! ) {
73                            $f = Frey::Introspect->new( package => $1 );
74                    } elsif ( $path =~ m!/ob/([^/]+)(.*)! ) {
75                            $f = Frey::ObjectBrowser->new( fey_class => $1 );
76                    } elsif ( $path =~ m!/od/([^/]+)(.*)! ) {
77                            $f = Frey::ObjectDesigner->new( fey_class => $1 );
78                    } elsif ( $path =~ m!/(markup|request)/([^/]+)(.*)! ) {
79                            $f = Frey::Run->new( class => $2 );
80                    } else {
81                            $f = Frey::ClassBrowser->new;
82                    }
83                    $f->request( $req ) if $f;
84    
85            };
86    
87          warn $req->request->header('User_Agent');          my $self = $req;
88  #warn dump( $req );  
89            if ( $@ ) {
90                    warn $@;
91                    #$req->conn->send_error( 404 ); # FIXME this should probably be 500, but we can't ship page with it
92                    $req->print( qq{<pre class="error">$@<pre>} );
93    #               Carp::REPL::repl;
94    
95            }
96    
97          # If this is a request for the pushtream, then give them that          # If this is a request for the pushtream, then give them that
98          if($path =~ /pushstream/) {          if($path =~ /pushstream/) {
99                  pushstream($req);                  pushstream($req);
100          }          }
101      
102          # 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
103          if($path =~ /sendmessage/) {          if($path =~ /sendmessage/) {
104                  send_message($req);                  send_message($req);
105          }          }
106    
         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($req);  
107  }  }
108    
109  # Here we accept a connection to the browser, and keep it open. Meanwhile we  # Here we accept a connection to the browser, and keep it open. Meanwhile we
# Line 130  sub send_message { Line 143  sub send_message {
143    }    }
144  }  }
145    
 # This isn't a pushstream, nor a new message. It is just the main page. We loop  
 # in case they ask for it multiple times :)  
 sub send_page {  
         my ($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;  
         }  
 }  
   
146  1;  1;
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