+
+ Membership* memb = chan->ForceJoin(who, NULL, sourceserver->IsBursting());
+ if (!memb)
+ {
+ // User was already on the channel, forward because of the modes they potentially got
+ memb = chan->GetUser(who);
+ if (memb)
+ fwdfjoin.add(memb, item.begin(), modeendit);
+ return;
+ }
+
+ // Assign the id to the new Membership
+ Membership::Id membid = 0;
+ const std::string::size_type colon = item.rfind(':');
+ if (colon != std::string::npos)
+ membid = Membership::IdFromString(item.substr(colon+1));
+ memb->id = membid;
+
+ // Add member to fwdfjoin with prefix modes
+ fwdfjoin.add(memb, item.begin(), modeendit);
+}
+
+void CommandFJoin::RemoveStatus(Channel* c)
+{
+ Modes::ChangeList changelist;
+
+ const ModeParser::ModeHandlerMap& mhs = ServerInstance->Modes->GetModes(MODETYPE_CHANNEL);
+ for (ModeParser::ModeHandlerMap::const_iterator i = mhs.begin(); i != mhs.end(); ++i)
+ {
+ ModeHandler* mh = i->second;
+
+ // Add the removal of this mode to the changelist. This handles all kinds of modes, including prefix modes.
+ mh->RemoveMode(c, changelist);
+ }
+
+ ServerInstance->Modes->Process(ServerInstance->FakeClient, c, NULL, changelist, ModeParser::MODE_LOCALONLY);
+}
+
+void CommandFJoin::LowerTS(Channel* chan, time_t TS, const std::string& newname)
+{
+ if (Utils->AnnounceTSChange)
+ chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :TS for %s changed from %lu to %lu", chan->name.c_str(), newname.c_str(), (unsigned long) chan->age, (unsigned long) TS);
+
+ // While the name is equal in case-insensitive compare, it might differ in case; use the remote version
+ chan->name = newname;
+ chan->age = TS;
+
+ // Clear all modes
+ CommandFJoin::RemoveStatus(chan);
+
+ // Unset all extensions
+ chan->FreeAllExtItems();
+
+ // Clear the topic, if it isn't empty then send a topic change message to local users
+ if (!chan->topic.empty())
+ {
+ chan->topic.clear();
+ chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "TOPIC %s :", chan->name.c_str());
+ }
+ chan->setby.clear();
+ chan->topicset = 0;
+}
+
+CommandFJoin::Builder::Builder(Channel* chan, TreeServer* source)
+ : CmdBuilder(source->GetID(), "FJOIN")
+{
+ push(chan->name).push_int(chan->age).push_raw(" +");
+ pos = str().size();
+ push_raw(chan->ChanModes(true)).push_raw(" :");
+}
+
+void CommandFJoin::Builder::add(Membership* memb, std::string::const_iterator mbegin, std::string::const_iterator mend)
+{
+ push_raw(mbegin, mend).push_raw(',').push_raw(memb->user->uuid);
+ push_raw(':').push_raw_int(memb->id);
+ push_raw(' ');
+}
+
+bool CommandFJoin::Builder::has_room(std::string::size_type nummodes) const
+{
+ return ((str().size() + nummodes + UIDGenerator::UUID_LENGTH + 2 + membid_max_digits + 1) <= maxline);
+}
+
+void CommandFJoin::Builder::clear()
+{
+ content.erase(pos);
+ push_raw(" :");
+}
+
+const std::string& CommandFJoin::Builder::finalize()
+{
+ if (*content.rbegin() == ' ')
+ content.erase(content.size()-1);
+ return str();
+}
+
+void FwdFJoinBuilder::add(Membership* memb, std::string::const_iterator mbegin, std::string::const_iterator mend)
+{
+ // Pseudoserver compatibility:
+ // Some pseudoservers do not handle lines longer than 512 so we split long FJOINs into multiple messages.
+ // The forwarded FJOIN can end up being longer than the original one if we have more modes set and won, for example.
+
+ // Check if the member fits into the current message. If not, send it and prepare a new one.
+ if (!has_room(std::distance(mbegin, mend)))
+ {
+ finalize();
+ Forward(sourceserver);
+ clear();
+ }
+ // Add the member and their modes exactly as they sent them
+ CommandFJoin::Builder::add(memb, mbegin, mend);