+ user->WriteServ("314 %s %s %s %s * :%s",user->nick,parameters[0],u->ident,u->dhost,u->gecos);
+
+ if (IS_OPER(user))
+ user->WriteServ("379 %s %s :was connecting from *@%s", user->nick, parameters[0], u->host);
+
+ if (*ServerInstance->Config->HideWhoisServer && !IS_OPER(user))
+ user->WriteServ("312 %s %s %s :%s",user->nick,parameters[0], ServerInstance->Config->HideWhoisServer, b);
+ else
+ user->WriteServ("312 %s %s %s :%s",user->nick,parameters[0], u->server, b);
+ }
+ }
+ else
+ {
+ user->WriteServ("406 %s %s :There was no such nickname",user->nick,parameters[0]);
+ user->WriteServ("369 %s %s :End of WHOWAS",user->nick,parameters[0]);
+ return CMD_FAILURE;
+ }
+ }
+
+ user->WriteServ("369 %s %s :End of WHOWAS",user->nick,parameters[0]);
+ return CMD_SUCCESS;
+}
+
+CmdResult cmd_whowas::HandleInternal(const unsigned int id, const std::deque<classbase*> ¶meters)
+{
+ switch (id)
+ {
+ case WHOWAS_ADD:
+ AddToWhoWas((userrec*)parameters[0]);
+ break;
+
+ case WHOWAS_STATS:
+ GetStats((Extensible*)parameters[0]);
+ break;
+
+ case WHOWAS_PRUNE:
+ PruneWhoWas(ServerInstance->Time());
+ break;
+
+ case WHOWAS_MAINTAIN:
+ MaintainWhoWas(ServerInstance->Time());
+ break;
+
+ default:
+ break;
+ }
+ return CMD_SUCCESS;
+}
+
+void cmd_whowas::GetStats(Extensible* ext)
+{
+ int whowas_size = 0;
+ int whowas_bytes = 0;
+ whowas_users_fifo::iterator iter;
+ for (iter = whowas_fifo.begin(); iter != whowas_fifo.end(); iter++)
+ {
+ whowas_set* n = (whowas_set*)whowas.find(iter->second)->second;
+ if (n->size())
+ {
+ whowas_size += n->size();
+ whowas_bytes += (sizeof(whowas_set) + ( sizeof(WhoWasGroup) * n->size() ) );
+ }
+ }
+ stats.assign("Whowas(MAPSETS) " +ConvToStr(whowas_size)+" ("+ConvToStr(whowas_bytes)+" bytes)");
+ ext->Extend("stats", stats.c_str());
+}
+
+void cmd_whowas::AddToWhoWas(userrec* user)
+{
+ /* if whowas disabled */
+ if (ServerInstance->Config->WhoWasGroupSize == 0 || ServerInstance->Config->WhoWasMaxGroups == 0)
+ {
+ return;
+ }
+
+ whowas_users::iterator iter = whowas.find(user->nick);
+
+ if (iter == whowas.end())
+ {
+ whowas_set* n = new whowas_set;
+ WhoWasGroup *a = new WhoWasGroup(user);
+ n->push_back(a);
+ whowas[user->nick] = n;
+ whowas_fifo.push_back(std::make_pair(ServerInstance->Time(),user->nick));
+
+ if ((int)(whowas.size()) > ServerInstance->Config->WhoWasMaxGroups)
+ {
+ whowas_users::iterator iter = whowas.find(whowas_fifo[0].second);
+ if (iter != whowas.end())
+ {
+ whowas_set* n = (whowas_set*)iter->second;
+
+ if (n->size())
+ {
+ while (n->begin() != n->end())
+ {
+ WhoWasGroup *a = *(n->begin());
+ delete a;
+ n->pop_front();
+ }
+ }
+
+ delete n;
+ whowas.erase(iter);
+ }
+ whowas_fifo.pop_front();
+ }
+ }
+ else
+ {
+ whowas_set* group = (whowas_set*)iter->second;
+ WhoWasGroup *a = new WhoWasGroup(user);
+ group->push_back(a);
+
+ if ((int)(group->size()) > ServerInstance->Config->WhoWasGroupSize)
+ {
+ WhoWasGroup *a = (WhoWasGroup*)*(group->begin());
+ delete a;
+ group->pop_front();
+ }
+ }
+}
+
+/* on rehash, refactor maps according to new conf values */
+void cmd_whowas::PruneWhoWas(time_t t)
+{
+ /* config values */
+ int groupsize = ServerInstance->Config->WhoWasGroupSize;
+ int maxgroups = ServerInstance->Config->WhoWasMaxGroups;
+ int maxkeep = ServerInstance->Config->WhoWasMaxKeep;
+
+ /* first cut the list to new size (maxgroups) and also prune entries that are timed out. */
+ whowas_users::iterator iter;
+ int fifosize;
+ while ((fifosize = (int)whowas_fifo.size()) > 0)
+ {
+ if (fifosize > maxgroups || whowas_fifo[0].first < t - maxkeep)
+ {
+ iter = whowas.find(whowas_fifo[0].second);
+
+ /* hopefully redundant integrity check, but added while debugging r6216 */
+ if (iter == whowas.end())
+ {
+ /* this should never happen, if it does maps are corrupt */
+ ServerInstance->Log(DEFAULT, "BUG: Whowas maps got corrupted! (1)");
+ return;