| 1 |
package Frey::Server; |
| 2 |
|
| 3 |
use strict; |
| 4 |
use warnings; |
| 5 |
|
| 6 |
use Continuity; |
| 7 |
#use Continuity::REPL; |
| 8 |
use Data::Dump qw/dump/; |
| 9 |
|
| 10 |
use base 'Frey'; |
| 11 |
use Frey::HTML; |
| 12 |
|
| 13 |
my @messages; # Global (shared) list of messages |
| 14 |
my $got_message; # Flag to indicate that there is a new message to display |
| 15 |
|
| 16 |
use vars qw( $repl $server ); |
| 17 |
|
| 18 |
#$repl = Continuity::REPL->new; |
| 19 |
$server = Continuity->new( |
| 20 |
port => 16001, |
| 21 |
path_session => 1, |
| 22 |
cookie_session => 'sid', |
| 23 |
callback => \&main, |
| 24 |
); |
| 25 |
$server->debug_level( 2 ); |
| 26 |
|
| 27 |
sub run { |
| 28 |
$server->loop; |
| 29 |
} |
| 30 |
|
| 31 |
my @callbacks; |
| 32 |
my $callback_count; |
| 33 |
|
| 34 |
sub gen_link { |
| 35 |
my ($text, $code) = @_; |
| 36 |
$callbacks[$callback_count] = $code; |
| 37 |
my $out = qq{<a href="?cb=$callback_count">$text</a>}; |
| 38 |
$callback_count++; |
| 39 |
return $out; |
| 40 |
} |
| 41 |
|
| 42 |
sub process_links { |
| 43 |
my $request = shift; |
| 44 |
my $cb = $request->param('cb'); |
| 45 |
if (exists $callbacks[$cb]) { |
| 46 |
$callbacks[$cb]->($request); |
| 47 |
# delete $callbacks[$cb]; |
| 48 |
} |
| 49 |
} |
| 50 |
|
| 51 |
# This is the main entrypoint. We are looking for one of three things -- a |
| 52 |
# pushstream, a sent message, or a request for the main HTML. We delegate each |
| 53 |
# of these cases, none of which will return (they all loop forever). |
| 54 |
sub main { |
| 55 |
my ($req) = @_; |
| 56 |
|
| 57 |
my $path = $req->request->url->path; |
| 58 |
warn "REQUEST: $path\n"; |
| 59 |
|
| 60 |
warn $req->request->header('User_Agent'); |
| 61 |
#warn dump( $req ); |
| 62 |
|
| 63 |
# If this is a request for the pushtream, then give them that |
| 64 |
if($path =~ /pushstream/) { |
| 65 |
pushstream($req); |
| 66 |
} |
| 67 |
|
| 68 |
# If they are sending us a message, we give them a thread for that too |
| 69 |
if($path =~ /sendmessage/) { |
| 70 |
send_message($req); |
| 71 |
} |
| 72 |
|
| 73 |
if ( $path =~ m/test/ ) { |
| 74 |
use Data::Dumper; |
| 75 |
$Data::Dumper::Deparse = 1; |
| 76 |
|
| 77 |
my $x = 0; |
| 78 |
my $continue = 1; |
| 79 |
my $link1 = gen_link('+' => sub { $x++ }); |
| 80 |
my $link2 = gen_link('-' => sub { $x-- }); |
| 81 |
my $out = gen_link('X' => sub { $continue = 0 }); |
| 82 |
while ( $continue ) { |
| 83 |
warn "## x = $x ",dump( $req->params ); |
| 84 |
$req->print("\$x is now: $x"); |
| 85 |
$req->print($link1, ' ', $link2, ' ', $out); |
| 86 |
$req->print('<pre>'.Dumper( @callbacks ).'</pre>'); |
| 87 |
$req->next; |
| 88 |
process_links($req); |
| 89 |
} |
| 90 |
} |
| 91 |
|
| 92 |
# Otherwise, lets give them page |
| 93 |
send_page($req); |
| 94 |
} |
| 95 |
|
| 96 |
# Here we accept a connection to the browser, and keep it open. Meanwhile we |
| 97 |
# watch the global $got_message variable, and when it gets touched we send off |
| 98 |
# the list of messages through the held-open connection. Then we let the |
| 99 |
# browser open a new connection and begin again. |
| 100 |
sub pushstream { |
| 101 |
my ($req) = @_; |
| 102 |
# Set up watch event -- this will be triggered when $got_message is written |
| 103 |
my $w = Coro::Event->var(var => \$got_message, poll => 'w'); |
| 104 |
while(1) { |
| 105 |
print STDERR "**** GOT MESSAGE, SENDING ****\n"; |
| 106 |
my $log = join "<br>", @messages; |
| 107 |
$req->print($log); |
| 108 |
$req->next; |
| 109 |
print STDERR "**** Waiting for got_message indicator ****\n"; |
| 110 |
$w->next; |
| 111 |
} |
| 112 |
} |
| 113 |
|
| 114 |
|
| 115 |
# Watch for the user to send us a message. As soon as we get it, we add it to |
| 116 |
# our list of messages and touch the $got_message flag to let all the |
| 117 |
# pushstreams know. |
| 118 |
sub send_message { |
| 119 |
my ($req) = @_; |
| 120 |
while(1) { |
| 121 |
my $msg = $req->param('message'); |
| 122 |
my $name = $req->param('username'); |
| 123 |
if($msg) { |
| 124 |
unshift @messages, "$name: $msg"; |
| 125 |
pop @messages if $#messages > 15; # Only keep the recent 15 messages |
| 126 |
} |
| 127 |
$got_message = 1; |
| 128 |
$req->print("Got it!"); |
| 129 |
$req->next; |
| 130 |
} |
| 131 |
} |
| 132 |
|
| 133 |
# This isn't a pushstream, nor a new message. It is just the main page. We loop |
| 134 |
# in case they ask for it multiple times :) |
| 135 |
sub send_page { |
| 136 |
my ($req) = @_; |
| 137 |
my $templates = Template::Declare->templates; |
| 138 |
while(1) { |
| 139 |
warn "param = ",dump($req->param); |
| 140 |
my $path = $req->request->url->path; |
| 141 |
|
| 142 |
my $html; |
| 143 |
|
| 144 |
if ( $path =~ m/::/ ) { |
| 145 |
my ( undef, $module, $method ) = split(m!/!, $path, 3); |
| 146 |
|
| 147 |
if ( ! defined( $templates->{$module} ) ) { |
| 148 |
$req->conn->send_status_line( 404, "$module" ); |
| 149 |
$html = "Package $module not found"; |
| 150 |
} elsif ( ! $method ) { |
| 151 |
$html = Frey::HTML->page( 'package-methods', $req, $module ); |
| 152 |
} elsif ( grep(/^\Q$method\E$/, @{ $templates->{$module} }) ) { |
| 153 |
$html = Frey::HTML->page( $method, $req ); |
| 154 |
} else { |
| 155 |
$req->conn->send_status_line( 404, "$module $method" ); |
| 156 |
$html = "Package $module doesn't have $method"; |
| 157 |
} |
| 158 |
} else { |
| 159 |
warn "fallback to status page\n"; |
| 160 |
$html = Frey::HTML->page( 'status' ); |
| 161 |
} |
| 162 |
|
| 163 |
$req->print( $html ); |
| 164 |
warn ">> ",length( $html ), " bytes\n"; |
| 165 |
$req->next; |
| 166 |
} |
| 167 |
} |
| 168 |
|
| 169 |
1; |
Parent Directory
| 
Revision Log