/[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 46 - (show annotations)
Mon Feb 4 19:24:25 2008 UTC (12 years, 2 months ago) by knops.gerd
File size: 4434 byte(s)
• The ADDMESSAGE response now follows the `OK` with a tab character and the message ID for the newly added message

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 my $msg=$channel->addMessage($line);
94 my $msgID=$msg->id();
95 $self->write("OK\t$msgID$::CRLF");
96 }
97 elsif($cmd eq 'COUNTSUBSCRIBERS')
98 {
99 unless($line=~s/^\s+(\S+)$//)
100 {
101 $self->write("ERR Invalid command syntax$::CRLF");
102
103 return;
104 }
105
106 my $channelName=$1;
107 my $numSubscribers=0;
108 my $channel=Meteor::Channel->channelWithName($channelName,1);
109 $numSubscribers=$channel->subscriberCount() if($channel);
110
111 $self->write("OK $numSubscribers$::CRLF");
112 }
113 elsif($cmd eq 'LISTCHANNELS')
114 {
115 unless($line eq '')
116 {
117 $self->write("ERR Invalid command syntax$::CRLF");
118
119 return;
120 }
121
122 my $txt="OK$::CRLF".Meteor::Channel->listChannels()."--EOT--$::CRLF";
123
124 $self->write($txt);
125 }
126 elsif($cmd eq 'SHOWSTATS')
127 {
128 # uptime
129 my $uptime=time-$::STARTUP_TIME;
130 my $txt="OK$::CRLF"."uptime: $uptime$::CRLF";
131
132 # channel_count
133 my $numChannels=Meteor::Channel->numChannels();
134 $txt.="channel_count: $numChannels$::CRLF";
135
136 foreach my $key (keys %{$::Statistics})
137 {
138 $txt.=$key.': '.$::Statistics->{$key}.$::CRLF;
139 }
140
141 $txt.="--EOT--$::CRLF";
142
143 $self->write($txt);
144 }
145 elsif($cmd eq 'QUIT')
146 {
147 unless($line eq '')
148 {
149 $self->write("ERR Invalid command syntax$::CRLF");
150
151 return;
152 }
153
154 $self->write("OK$::CRLF");
155 $self->close(1);
156 }
157 else
158 {
159 # Should never get here
160 die("Unknown command '$cmd'");
161 }
162 }
163
164 sub close {
165 my $self=shift;
166 my $noShutdownMsg=shift;
167
168 unless($noShutdownMsg || $self->{'remoteClosed'})
169 {
170 my $msg=$::CONF{'ControllerShutdownMsg'};
171 if(defined($msg) && $msg ne '')
172 {
173 $self->write($msg);
174 }
175 }
176
177 $self->SUPER::close();
178 }
179
180 sub didClose {
181
182 $::Statistics->{'current_controllers'}--;
183 }
184
185 1;
186 ############################################################################EOF

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