2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
6 * Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
7 * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
9 * This file is part of InspIRCd. InspIRCd is free software: you can
10 * redistribute it and/or modify it under the terms of the GNU General Public
11 * License as published by the Free Software Foundation, version 2.
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "commands/cmd_whowas.h"
26 CommandWhowas::CommandWhowas( Module* parent)
27 : Command(parent, "WHOWAS", 1)
28 , GroupSize(0), MaxGroups(0), MaxKeep(0)
30 syntax = "<nick>{,<nick>}";
34 CmdResult CommandWhowas::Handle (const std::vector<std::string>& parameters, User* user)
36 /* if whowas disabled in config */
37 if (this->GroupSize == 0 || this->MaxGroups == 0)
39 user->WriteNumeric(421, "%s %s :This command has been disabled.",user->nick.c_str(),name.c_str());
43 whowas_users::iterator i = whowas.find(assign(parameters[0]));
45 if (i == whowas.end())
47 user->WriteNumeric(406, "%s %s :There was no such nickname",user->nick.c_str(),parameters[0].c_str());
51 whowas_set* grp = i->second;
54 for (whowas_set::iterator ux = grp->begin(); ux != grp->end(); ux++)
57 time_t rawtime = u->signon;
61 timeinfo = localtime(&rawtime);
63 strncpy(b,asctime(timeinfo),24);
66 user->WriteNumeric(314, "%s %s %s %s * :%s",user->nick.c_str(),parameters[0].c_str(),
67 u->ident.c_str(),u->dhost.c_str(),u->gecos.c_str());
69 if (user->HasPrivPermission("users/auspex"))
70 user->WriteNumeric(379, "%s %s :was connecting from *@%s",
71 user->nick.c_str(), parameters[0].c_str(), u->host.c_str());
73 bool hide_server = (!ServerInstance->Config->HideWhoisServer.empty() && !user->HasPrivPermission("servers/auspex"));
74 user->WriteNumeric(312, "%s %s %s :%s",user->nick.c_str(), parameters[0].c_str(), (hide_server ? ServerInstance->Config->HideWhoisServer.c_str() : u->server.c_str()), b);
79 user->WriteNumeric(406, "%s %s :There was no such nickname",user->nick.c_str(),parameters[0].c_str());
83 user->WriteNumeric(369, "%s %s :End of WHOWAS",user->nick.c_str(),parameters[0].c_str());
87 std::string CommandWhowas::GetStats()
91 for (whowas_users::iterator i = whowas.begin(); i != whowas.end(); ++i)
93 whowas_set* n = i->second;
94 whowas_size += n->size();
95 whowas_bytes += (sizeof(whowas_set) + ( sizeof(WhoWasGroup) * n->size() ) );
97 return "Whowas entries: " +ConvToStr(whowas_size)+" ("+ConvToStr(whowas_bytes)+" bytes)";
100 void CommandWhowas::AddToWhoWas(User* user)
102 /* if whowas disabled */
103 if (this->GroupSize == 0 || this->MaxGroups == 0)
108 // Insert nick if it doesn't exist
109 // 'first' will point to the newly inserted element or to the existing element with an equivalent key
110 std::pair<whowas_users::iterator, bool> ret = whowas.insert(std::make_pair(irc::string(user->nick.c_str()), static_cast<whowas_set*>(NULL)));
112 if (ret.second) // If inserted
114 // This nick is new, create a list for it and add the first record to it
115 whowas_set* n = new whowas_set;
116 n->push_back(new WhoWasGroup(user));
117 ret.first->second = n;
119 // Add this nick to the fifo too
120 whowas_fifo.push_back(std::make_pair(ServerInstance->Time(), ret.first->first));
122 if (whowas.size() > this->MaxGroups)
124 // Too many nicks, remove the nick which was inserted the longest time ago from both the map and the fifo
125 whowas_users::iterator it = whowas.find(whowas_fifo.front().second);
126 if (it != whowas.end())
128 whowas_set* set = it->second;
129 for (whowas_set::iterator i = set->begin(); i != set->end(); ++i)
135 whowas_fifo.pop_front();
140 // We've met this nick before, add a new record to the list
141 whowas_set* set = ret.first->second;
142 set->push_back(new WhoWasGroup(user));
144 // If there are too many records for this nick, remove the oldest (front)
145 if (set->size() > this->GroupSize)
153 /* on rehash, refactor maps according to new conf values */
154 void CommandWhowas::Prune()
156 time_t min = ServerInstance->Time() - this->MaxKeep;
158 /* first cut the list to new size (maxgroups) and also prune entries that are timed out. */
159 while (!whowas_fifo.empty())
161 if ((whowas_fifo.size() > this->MaxGroups) || (whowas_fifo.front().first < min))
163 whowas_users::iterator iter = whowas.find(whowas_fifo.front().second);
165 /* hopefully redundant integrity check, but added while debugging r6216 */
166 if (iter == whowas.end())
168 /* this should never happen, if it does maps are corrupt */
169 ServerInstance->Logs->Log("WHOWAS", LOG_DEFAULT, "BUG: Whowas maps got corrupted! (1)");
173 whowas_set* set = iter->second;
174 for (whowas_set::iterator i = set->begin(); i != set->end(); ++i)
179 whowas_fifo.pop_front();
185 /* Then cut the whowas sets to new size (groupsize) */
186 for (whowas_users::iterator i = whowas.begin(); i != whowas.end(); ++i)
188 whowas_set* n = i->second;
189 while (n->size() > this->GroupSize)
197 /* call maintain once an hour to remove expired nicks */
198 void CommandWhowas::Maintain()
200 time_t min = ServerInstance->Time() - this->MaxKeep;
201 for (whowas_users::iterator i = whowas.begin(); i != whowas.end(); ++i)
203 whowas_set* set = i->second;
204 while (!set->empty() && set->front()->signon < min)
212 CommandWhowas::~CommandWhowas()
214 for (whowas_users::iterator i = whowas.begin(); i != whowas.end(); ++i)
216 whowas_set* set = i->second;
217 for (whowas_set::iterator j = set->begin(); j != set->end(); ++j)
224 WhoWasGroup::WhoWasGroup(User* user) : host(user->host), dhost(user->dhost), ident(user->ident),
225 server(user->server), gecos(user->fullname), signon(user->signon)
229 class ModuleWhoWas : public Module
234 ModuleWhoWas() : cmd(this)
240 ServerInstance->Modules->AddService(cmd);
244 void OnGarbageCollect()
246 // Remove all entries older than MaxKeep
250 void OnUserQuit(User* user, const std::string& message, const std::string& oper_message)
252 cmd.AddToWhoWas(user);
255 ModResult OnStats(char symbol, User* user, string_list &results)
258 results.push_back(ServerInstance->Config->ServerName+" 249 "+user->nick+" :"+cmd.GetStats());
260 return MOD_RES_PASSTHRU;
263 void OnRehash(User* user)
265 ConfigTag* tag = ServerInstance->Config->ConfValue("whowas");
266 unsigned int NewGroupSize = tag->getInt("groupsize", 10, 0, 10000);
267 unsigned int NewMaxGroups = tag->getInt("maxgroups", 10240, 0, 1000000);
268 unsigned int NewMaxKeep = tag->getDuration("maxkeep", 3600, 3600);
270 if ((NewGroupSize == cmd.GroupSize) && (NewMaxGroups == cmd.MaxGroups) && (NewMaxKeep == cmd.MaxKeep))
273 cmd.GroupSize = NewGroupSize;
274 cmd.MaxGroups = NewMaxGroups;
275 cmd.MaxKeep = NewMaxKeep;
281 return Version("WHOWAS", VF_VENDOR);
285 MODULE_INIT(ModuleWhoWas)