2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2010 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
7 * This file is part of InspIRCd. InspIRCd is free software: you can
8 * redistribute it and/or modify it under the terms of the GNU General Public
9 * License as published by the Free Software Foundation, version 2.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 CmdResult CommandFTopic::Handle(User* user, std::vector<std::string>& params)
27 Channel* c = ServerInstance->FindChan(params[0]);
31 if (c->age < ServerCommand::ExtractTS(params[1]))
32 // Our channel TS is older, nothing to do
35 // Channel::topicset is initialized to 0 on channel creation, so their ts will always win if we never had a topic
36 time_t ts = ServerCommand::ExtractTS(params[2]);
40 // The topic text is always the last parameter
41 const std::string& newtopic = params.back();
43 // If there is a setter in the message use that, otherwise use the message source
44 const std::string& setter = ((params.size() > 4) ? params[3] : (ServerInstance->Config->FullHostInTopic ? user->GetFullHost() : user->nick));
47 * If the topics were updated at the exact same second, accept
48 * the remote only when it's "bigger" than ours as defined by
49 * string comparision, so non-empty topics always overridde
50 * empty topics if their timestamps are equal
52 * Similarly, if the topic texts are equal too, keep one topic
53 * setter and discard the other
55 if (ts == c->topicset)
57 // Discard if their topic text is "smaller"
58 if (c->topic > newtopic)
61 // If the texts are equal in addition to the timestamps, decide which setter to keep
62 if ((c->topic == newtopic) && (c->setby >= setter))
66 if (c->topic != newtopic)
68 // Update topic only when it differs from current topic
69 c->topic.assign(newtopic, 0, ServerInstance->Config->Limits.MaxTopic);
70 c->WriteChannel(user, "TOPIC %s :%s", c->name.c_str(), c->topic.c_str());
73 // Update setter and settime
74 c->setby.assign(setter, 0, 128);
77 FOREACH_MOD(OnPostTopicChange, (user, c, c->topic));
82 // Used when bursting and in reply to RESYNC, contains topic setter as the 4th parameter
83 CommandFTopic::Builder::Builder(Channel* chan)
84 : CmdBuilder("FTOPIC")
88 push_int(chan->topicset);
90 push_last(chan->topic);
93 // Used when changing the topic, the setter is the message source
94 CommandFTopic::Builder::Builder(User* user, Channel* chan)
95 : CmdBuilder(user, "FTOPIC")
99 push_int(chan->topicset);
100 push_last(chan->topic);