diff options
Diffstat (limited to 'src/modules/cmd_whowas.cpp')
| -rw-r--r-- | src/modules/cmd_whowas.cpp | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/src/modules/cmd_whowas.cpp b/src/modules/cmd_whowas.cpp new file mode 100644 index 000000000..78a7e7544 --- /dev/null +++ b/src/modules/cmd_whowas.cpp @@ -0,0 +1,344 @@ +/* +------------------------------------+ + * | Inspire Internet Relay Chat Daemon | + * +------------------------------------+ + * + * InspIRCd: (C) 2002-2009 InspIRCd Development Team + * See: http://wiki.inspircd.org/Credits + * + * This program is free but copyrighted software; see + * the file COPYING for details. + * + * --------------------------------------------------- + */ + +#include "inspircd.h" +#include "commands/cmd_whowas.h" + +WhoWasMaintainTimer * timer; + +CommandWhowas::CommandWhowas( Module* parent) : Command(parent, "WHOWAS", 1) +{ + syntax = "<nick>{,<nick>}"; + Penalty = 2; + timer = new WhoWasMaintainTimer(ServerInstance, 3600); + ServerInstance->Timers->AddTimer(timer); +} + +CmdResult CommandWhowas::Handle (const std::vector<std::string>& parameters, User* user) +{ + /* if whowas disabled in config */ + if (ServerInstance->Config->WhoWasGroupSize == 0 || ServerInstance->Config->WhoWasMaxGroups == 0) + { + user->WriteNumeric(421, "%s %s :This command has been disabled.",user->nick.c_str(),command.c_str()); + return CMD_FAILURE; + } + + whowas_users::iterator i = whowas.find(assign(parameters[0])); + + if (i == whowas.end()) + { + user->WriteNumeric(406, "%s %s :There was no such nickname",user->nick.c_str(),parameters[0].c_str()); + user->WriteNumeric(369, "%s %s :End of WHOWAS",user->nick.c_str(),parameters[0].c_str()); + return CMD_FAILURE; + } + else + { + whowas_set* grp = i->second; + if (grp->size()) + { + for (whowas_set::iterator ux = grp->begin(); ux != grp->end(); ux++) + { + WhoWasGroup* u = *ux; + time_t rawtime = u->signon; + tm *timeinfo; + char b[25]; + + timeinfo = localtime(&rawtime); + + strncpy(b,asctime(timeinfo),24); + b[24] = 0; + + user->WriteNumeric(314, "%s %s %s %s * :%s",user->nick.c_str(),parameters[0].c_str(), + u->ident.c_str(),u->dhost.c_str(),u->gecos.c_str()); + + if (user->HasPrivPermission("users/auspex")) + user->WriteNumeric(379, "%s %s :was connecting from *@%s", + user->nick.c_str(), parameters[0].c_str(), u->host.c_str()); + + if (*ServerInstance->Config->HideWhoisServer && !user->HasPrivPermission("servers/auspex")) + user->WriteNumeric(312, "%s %s %s :%s",user->nick.c_str(),parameters[0].c_str(), ServerInstance->Config->HideWhoisServer, b); + else + user->WriteNumeric(312, "%s %s %s :%s",user->nick.c_str(),parameters[0].c_str(), u->server, b); + } + } + else + { + user->WriteNumeric(406, "%s %s :There was no such nickname",user->nick.c_str(),parameters[0].c_str()); + user->WriteNumeric(369, "%s %s :End of WHOWAS",user->nick.c_str(),parameters[0].c_str()); + return CMD_FAILURE; + } + } + + user->WriteNumeric(369, "%s %s :End of WHOWAS",user->nick.c_str(),parameters[0].c_str()); + return CMD_SUCCESS; +} + +std::string CommandWhowas::GetStats() +{ + 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)"); + return stats; +} + +void CommandWhowas::AddToWhoWas(User* user) +{ + /* if whowas disabled */ + if (ServerInstance->Config->WhoWasGroupSize == 0 || ServerInstance->Config->WhoWasMaxGroups == 0) + { + return; + } + + whowas_users::iterator iter = whowas.find(irc::string(user->nick.c_str())); + + if (iter == whowas.end()) + { + whowas_set* n = new whowas_set; + WhoWasGroup *a = new WhoWasGroup(user); + n->push_back(a); + whowas[user->nick.c_str()] = n; + whowas_fifo.push_back(std::make_pair(ServerInstance->Time(),user->nick.c_str())); + + if ((int)(whowas.size()) > ServerInstance->Config->WhoWasMaxGroups) + { + whowas_users::iterator iter2 = whowas.find(whowas_fifo[0].second); + if (iter2 != whowas.end()) + { + whowas_set* n2 = (whowas_set*)iter2->second; + + if (n2->size()) + { + while (n2->begin() != n2->end()) + { + WhoWasGroup *a2 = *(n2->begin()); + delete a2; + n2->pop_front(); + } + } + + delete n2; + whowas.erase(iter2); + } + 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 *a2 = (WhoWasGroup*)*(group->begin()); + delete a2; + group->pop_front(); + } + } +} + +/* on rehash, refactor maps according to new conf values */ +void CommandWhowas::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->Logs->Log("WHOWAS",DEFAULT, "BUG: Whowas maps got corrupted! (1)"); + return; + } + + 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 + break; + } + + /* Then cut the whowas sets to new size (groupsize) */ + fifosize = (int)whowas_fifo.size(); + for (int i = 0; i < fifosize; i++) + { + 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->Logs->Log("WHOWAS",DEFAULT, "BUG: Whowas maps got corrupted! (2)"); + return; + } + whowas_set* n = (whowas_set*)iter->second; + if (n->size()) + { + int nickcount = n->size(); + while (n->begin() != n->end() && nickcount > groupsize) + { + WhoWasGroup *a = *(n->begin()); + delete a; + n->pop_front(); + nickcount--; + } + } + } +} + +/* call maintain once an hour to remove expired nicks */ +void CommandWhowas::MaintainWhoWas(time_t t) +{ + for (whowas_users::iterator iter = whowas.begin(); iter != whowas.end(); iter++) + { + whowas_set* n = (whowas_set*)iter->second; + if (n->size()) + { + while ((n->begin() != n->end()) && ((*n->begin())->signon < t - ServerInstance->Config->WhoWasMaxKeep)) + { + WhoWasGroup *a = *(n->begin()); + delete a; + n->erase(n->begin()); + } + } + } +} + +CommandWhowas::~CommandWhowas() +{ + if (timer) + { + ServerInstance->Timers->DelTimer(timer); + } + + whowas_users::iterator iter; + int fifosize; + while ((fifosize = (int)whowas_fifo.size()) > 0) + { + 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->Logs->Log("WHOWAS",DEFAULT, "BUG: Whowas maps got corrupted! (3)"); + return; + } + + 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(); + } +} + +WhoWasGroup::WhoWasGroup(User* user) : host(user->host), dhost(user->dhost), ident(user->ident), + server(user->server), gecos(user->fullname), signon(user->signon) +{ +} + +WhoWasGroup::~WhoWasGroup() +{ +} + +/* every hour, run this function which removes all entries older than Config->WhoWasMaxKeep */ +void WhoWasMaintainTimer::Tick(time_t) +{ + Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so"); + if (whowas) + { + WhowasRequest(whowas, whowas, WhowasRequest::WHOWAS_MAINTAIN).Send(); + } +} + +class ModuleWhoWas : public Module +{ + CommandWhowas cmd; + public: + ModuleWhoWas(InspIRCd *Me) : Module(Me), cmd(this) + { + ServerInstance->AddCommand(&cmd); + } + + const char* OnRequest(Request* request) + { + WhowasRequest* req = static_cast<WhowasRequest*>(request); + switch (req->type) + { + case WhowasRequest::WHOWAS_ADD: + cmd.AddToWhoWas(req->user); + break; + case WhowasRequest::WHOWAS_STATS: + req->value = cmd.GetStats(); + break; + case WhowasRequest::WHOWAS_PRUNE: + cmd.PruneWhoWas(ServerInstance->Time()); + break; + case WhowasRequest::WHOWAS_MAINTAIN: + cmd.MaintainWhoWas(ServerInstance->Time()); + break; + } + return NULL; + } + + Version GetVersion() + { + return Version("WHOWAS Command", VF_VENDOR); + } +}; + +MODULE_INIT(ModuleWhoWas) |