/[meteor]/googlecode.com/svn/trunk/Meteor/Controller.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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Contents of /googlecode.com/svn/trunk/Meteor/Controller.pm

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Revision 43 - (show annotations)
Sun Feb 3 23:24:26 2008 UTC (16 years, 1 month ago) by knops.gerd
File size: 4394 byte(s)
• Have both SHOWSTATS and LISTCHANNELS start their responses with 'OK' and end with '--EOT--'

1 #!/usr/bin/perl -w
2 ###############################################################################
3 # Meteor
4 # An HTTP server for the 2.0 web
5 # Copyright (c) 2006 contributing authors
6 #
7 # Subscriber.pm
8 #
9 # Description:
10 # A Meteor Controller
11 #
12 ###############################################################################
13 #
14 # This program is free software; you can redistribute it and/or modify it
15 # under the terms of the GNU General Public License as published by the Free
16 # Software Foundation; either version 2 of the License, or (at your option)
17 # any later version.
18 #
19 # This program is distributed in the hope that it will be useful, but WITHOUT
20 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
21 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
22 # more details.
23 #
24 # You should have received a copy of the GNU General Public License along
25 # with this program; if not, write to the Free Software Foundation, Inc.,
26 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #
28 # For more information visit www.meteorserver.org
29 #
30 ###############################################################################
31
32 package Meteor::Controller;
33 ###############################################################################
34 # Configuration
35 ###############################################################################
36
37 use strict;
38
39 use Meteor::Connection;
40 use Meteor::Channel;
41 use Meteor::Subscriber;
42
43 @Meteor::Controller::ISA=qw(Meteor::Connection);
44
45 ###############################################################################
46 # Factory methods
47 ###############################################################################
48 sub newFromServer {
49 my $class=shift;
50
51 my $self=$class->SUPER::newFromServer(shift);
52
53 $::Statistics->{'current_controllers'}++;
54 $::Statistics->{'controller_connections_accepted'}++;
55
56 $self;
57 }
58
59 ###############################################################################
60 # Instance methods
61 ###############################################################################
62 sub processLine {
63 my $self=shift;
64 my $line=shift;
65
66 # ADDMESSAGE channel1 Message text
67 # < OK
68 # ADDMESSAGE
69 # < ERR Invalid command syntax
70 # COUNTSUBSCRIBERS channel1
71 # < OK 344
72
73 unless($line=~s/^(ADDMESSAGE|COUNTSUBSCRIBERS|LISTCHANNELS|SHOWSTATS|QUIT)//)
74 {
75 $self->write("ERR Invalid command syntax$::CRLF");
76
77 return;
78 }
79
80 my $cmd=$1;
81
82 if($cmd eq 'ADDMESSAGE')
83 {
84 unless($line=~s/^\s+(\S+)\s//)
85 {
86 $self->write("ERR Invalid command syntax$::CRLF");
87
88 return;
89 }
90
91 my $channelName=$1;
92 my $channel=Meteor::Channel->channelWithName($channelName);
93 $channel->addMessage($line);
94 $self->write("OK$::CRLF");
95 }
96 elsif($cmd eq 'COUNTSUBSCRIBERS')
97 {
98 unless($line=~s/^\s+(\S+)$//)
99 {
100 $self->write("ERR Invalid command syntax$::CRLF");
101
102 return;
103 }
104
105 my $channelName=$1;
106 my $numSubscribers=0;
107 my $channel=Meteor::Channel->channelWithName($channelName,1);
108 $numSubscribers=$channel->subscriberCount() if($channel);
109
110 $self->write("OK $numSubscribers$::CRLF");
111 }
112 elsif($cmd eq 'LISTCHANNELS')
113 {
114 unless($line eq '')
115 {
116 $self->write("ERR Invalid command syntax$::CRLF");
117
118 return;
119 }
120
121 my $txt="OK$::CRLF".Meteor::Channel->listChannels()."--EOT--$::CRLF";
122
123 $self->write($txt);
124 }
125 elsif($cmd eq 'SHOWSTATS')
126 {
127 # uptime
128 my $uptime=time-$::STARTUP_TIME;
129 my $txt="OK$::CRLF"."uptime: $uptime$::CRLF";
130
131 # channel_count
132 my $numChannels=Meteor::Channel->numChannels();
133 $txt.="channel_count: $numChannels$::CRLF";
134
135 foreach my $key (keys %{$::Statistics})
136 {
137 $txt.=$key.': '.$::Statistics->{$key}.$::CRLF;
138 }
139
140 $txt.="--EOT--$::CRLF";
141
142 $self->write($txt);
143 }
144 elsif($cmd eq 'QUIT')
145 {
146 unless($line eq '')
147 {
148 $self->write("ERR Invalid command syntax$::CRLF");
149
150 return;
151 }
152
153 $self->write("OK$::CRLF");
154 $self->close(1);
155 }
156 else
157 {
158 # Should never get here
159 die("Unknown command '$cmd'");
160 }
161 }
162
163 sub close {
164 my $self=shift;
165 my $noShutdownMsg=shift;
166
167 unless($noShutdownMsg || $self->{'remoteClosed'})
168 {
169 my $msg=$::CONF{'ControllerShutdownMsg'};
170 if(defined($msg) && $msg ne '')
171 {
172 $self->write($msg);
173 }
174 }
175
176 $self->SUPER::close();
177 }
178
179 sub didClose {
180
181 $::Statistics->{'current_controllers'}--;
182 }
183
184 1;
185 ############################################################################EOF

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