1 /* +------------------------------------+
\r * | Inspire Internet Relay Chat Daemon |
\r * +------------------------------------+
\r *
\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team
\r * See: http://www.inspircd.org/wiki/index.php/Credits
\r *
\r * This program is free but copyrighted software; see
\r * the file COPYING for details.
\r *
\r * ---------------------------------------------------
\r */
\r\r#include "inspircd.h"
\r#include "configreader.h"
\r#include "users.h"
\r#include "commands/cmd_whowas.h"
\r\rWhoWasMaintainTimer * timer;
\r\rextern "C" DllExport command_t* init_command(InspIRCd* Instance)
\r{
\r return new cmd_whowas(Instance);
\r}
\r\rcmd_whowas::cmd_whowas(InspIRCd* Instance)
\r: command_t(Instance, "WHOWAS", 0, 1)
\r{
\r syntax = "<nick>{,<nick>}";
\r timer = new WhoWasMaintainTimer(Instance, 3600);
\r Instance->Timers->AddTimer(timer);
\r}
\r\rCmdResult cmd_whowas::Handle (const char** parameters, int pcnt, userrec* user)
\r{
\r /* if whowas disabled in config */
\r if (ServerInstance->Config->WhoWasGroupSize == 0 || ServerInstance->Config->WhoWasMaxGroups == 0)
\r {
\r user->WriteServ("421 %s %s :This command has been disabled.",user->nick,command.c_str());
\r return CMD_FAILURE;
\r }
\r\r whowas_users::iterator i = whowas.find(parameters[0]);
\r\r if (i == whowas.end())
\r {
\r user->WriteServ("406 %s %s :There was no such nickname",user->nick,parameters[0]);
\r user->WriteServ("369 %s %s :End of WHOWAS",user->nick,parameters[0]);
\r return CMD_FAILURE;
\r }
\r else
\r {
\r whowas_set* grp = i->second;
\r if (grp->size())
\r {
\r for (whowas_set::iterator ux = grp->begin(); ux != grp->end(); ux++)
\r {
\r WhoWasGroup* u = *ux;
\r time_t rawtime = u->signon;
\r tm *timeinfo;
\r char b[MAXBUF];
\r \r timeinfo = localtime(&rawtime);
\r \r /* XXX - 'b' could be only 25 chars long and then strlcpy() would terminate it for us too? */
\r strlcpy(b,asctime(timeinfo),MAXBUF);
\r b[24] = 0;
\r\r user->WriteServ("314 %s %s %s %s * :%s",user->nick,parameters[0],u->ident,u->dhost,u->gecos);
\r \r if (IS_OPER(user))
\r user->WriteServ("379 %s %s :was connecting from *@%s", user->nick, parameters[0], u->host);
\r \r if (*ServerInstance->Config->HideWhoisServer && !IS_OPER(user))
\r user->WriteServ("312 %s %s %s :%s",user->nick,parameters[0], ServerInstance->Config->HideWhoisServer, b);
\r else
\r user->WriteServ("312 %s %s %s :%s",user->nick,parameters[0], u->server, b);
\r }
\r }
\r else
\r {
\r user->WriteServ("406 %s %s :There was no such nickname",user->nick,parameters[0]);
\r user->WriteServ("369 %s %s :End of WHOWAS",user->nick,parameters[0]);
\r return CMD_FAILURE;
\r }
\r }
\r\r user->WriteServ("369 %s %s :End of WHOWAS",user->nick,parameters[0]);
\r return CMD_SUCCESS;
\r}
\r\rCmdResult cmd_whowas::HandleInternal(const unsigned int id, const std::deque<classbase*> ¶meters)
\r{
\r switch (id)
\r {
\r case WHOWAS_ADD:
\r AddToWhoWas((userrec*)parameters[0]);
\r break;
\r\r case WHOWAS_STATS:
\r GetStats((Extensible*)parameters[0]);
\r break;
\r\r case WHOWAS_PRUNE:
\r PruneWhoWas(ServerInstance->Time());
\r break;
\r\r case WHOWAS_MAINTAIN:
\r MaintainWhoWas(ServerInstance->Time());
\r break;
\r\r default:
\r break;
\r }
\r return CMD_SUCCESS;
\r}
\r\rvoid cmd_whowas::GetStats(Extensible* ext)
\r{
\r int whowas_size = 0;
\r int whowas_bytes = 0;
\r whowas_users_fifo::iterator iter;
\r for (iter = whowas_fifo.begin(); iter != whowas_fifo.end(); iter++)
\r {
\r whowas_set* n = (whowas_set*)whowas.find(iter->second)->second;
\r if (n->size())
\r {
\r whowas_size += n->size();
\r whowas_bytes += (sizeof(whowas_set) + ( sizeof(WhoWasGroup) * n->size() ) );
\r }
\r }
\r stats.assign("Whowas(MAPSETS) " +ConvToStr(whowas_size)+" ("+ConvToStr(whowas_bytes)+" bytes)");
\r ext->Extend("stats", stats.c_str());
\r}
\r\rvoid cmd_whowas::AddToWhoWas(userrec* user)
\r{
\r /* if whowas disabled */
\r if (ServerInstance->Config->WhoWasGroupSize == 0 || ServerInstance->Config->WhoWasMaxGroups == 0)
\r {
\r return;
\r }
\r\r whowas_users::iterator iter = whowas.find(user->nick);
\r\r if (iter == whowas.end())
\r {
\r whowas_set* n = new whowas_set;
\r WhoWasGroup *a = new WhoWasGroup(user);
\r n->push_back(a);
\r whowas[user->nick] = n;
\r whowas_fifo.push_back(std::make_pair(ServerInstance->Time(),user->nick));
\r\r if ((int)(whowas.size()) > ServerInstance->Config->WhoWasMaxGroups)
\r {
\r whowas_users::iterator iter = whowas.find(whowas_fifo[0].second);
\r if (iter != whowas.end())
\r {
\r whowas_set* n = (whowas_set*)iter->second;
\r if (n->size())
\r {
\r while (n->begin() != n->end())
\r {
\r WhoWasGroup *a = *(n->begin());
\r DELETE(a);
\r n->pop_front();
\r }
\r }
\r DELETE(n);
\r whowas.erase(iter);
\r }
\r whowas_fifo.pop_front();
\r }
\r }
\r else
\r {
\r whowas_set* group = (whowas_set*)iter->second;
\r WhoWasGroup *a = new WhoWasGroup(user);
\r group->push_back(a);
\r\r if ((int)(group->size()) > ServerInstance->Config->WhoWasGroupSize)
\r {
\r WhoWasGroup *a = (WhoWasGroup*)*(group->begin());
\r DELETE(a);
\r group->pop_front();
\r }
\r }
\r}
\r\r/* on rehash, refactor maps according to new conf values */
\rvoid cmd_whowas::PruneWhoWas(time_t t)
\r{
\r /* config values */
\r int groupsize = ServerInstance->Config->WhoWasGroupSize;
\r int maxgroups = ServerInstance->Config->WhoWasMaxGroups;
\r int maxkeep = ServerInstance->Config->WhoWasMaxKeep;
\r\r /* first cut the list to new size (maxgroups) and also prune entries that are timed out. */
\r whowas_users::iterator iter;
\r int fifosize;
\r while ((fifosize = (int)whowas_fifo.size()) > 0)
\r {
\r if (fifosize > maxgroups || whowas_fifo[0].first < t - maxkeep)
\r {
\r iter = whowas.find(whowas_fifo[0].second);
\r /* hopefully redundant integrity check, but added while debugging r6216 */
\r if (iter == whowas.end())
\r {
\r /* this should never happen, if it does maps are corrupt */
\r ServerInstance->Log(DEFAULT, "BUG: Whowas maps got corrupted! (1)");
\r return;
\r }
\r whowas_set* n = (whowas_set*)iter->second;
\r if (n->size())
\r {
\r while (n->begin() != n->end())
\r {
\r WhoWasGroup *a = *(n->begin());
\r DELETE(a);
\r n->pop_front();
\r }
\r }
\r DELETE(n);
\r whowas.erase(iter);
\r whowas_fifo.pop_front();
\r }
\r else
\r break;
\r }
\r\r /* Then cut the whowas sets to new size (groupsize) */
\r fifosize = (int)whowas_fifo.size();
\r for (int i = 0; i < fifosize; i++)
\r {
\r iter = whowas.find(whowas_fifo[0].second);
\r /* hopefully redundant integrity check, but added while debugging r6216 */
\r if (iter == whowas.end())
\r {
\r /* this should never happen, if it does maps are corrupt */
\r ServerInstance->Log(DEFAULT, "BUG: Whowas maps got corrupted! (2)");
\r return;
\r }
\r whowas_set* n = (whowas_set*)iter->second;
\r if (n->size())
\r {
\r int nickcount = n->size();
\r while (n->begin() != n->end() && nickcount > groupsize)
\r {
\r WhoWasGroup *a = *(n->begin());
\r DELETE(a);
\r n->pop_front();
\r nickcount--;
\r }
\r }
\r }
\r}
\r\r/* call maintain once an hour to remove expired nicks */
\rvoid cmd_whowas::MaintainWhoWas(time_t t)
\r{
\r for (whowas_users::iterator iter = whowas.begin(); iter != whowas.end(); iter++)
\r {
\r whowas_set* n = (whowas_set*)iter->second;
\r if (n->size())
\r {
\r while ((n->begin() != n->end()) && ((*n->begin())->signon < t - ServerInstance->Config->WhoWasMaxKeep))
\r {
\r WhoWasGroup *a = *(n->begin());
\r DELETE(a);
\r n->erase(n->begin());
\r }
\r }
\r }
\r}
\r\rcmd_whowas::~cmd_whowas()
\r{
\r if (timer)
\r {
\r ServerInstance->Timers->DelTimer(timer);
\r }
\r\r whowas_users::iterator iter;
\r int fifosize;
\r while ((fifosize = (int)whowas_fifo.size()) > 0)
\r {
\r iter = whowas.find(whowas_fifo[0].second);
\r /* hopefully redundant integrity check, but added while debugging r6216 */
\r if (iter == whowas.end())
\r {
\r /* this should never happen, if it does maps are corrupt */
\r ServerInstance->Log(DEFAULT, "BUG: Whowas maps got corrupted! (3)");
\r return;
\r }
\r whowas_set* n = (whowas_set*)iter->second;
\r if (n->size())
\r {
\r while (n->begin() != n->end())
\r {
\r WhoWasGroup *a = *(n->begin());
\r DELETE(a);
\r n->pop_front();
\r }
\r }
\r DELETE(n);
\r whowas.erase(iter);
\r whowas_fifo.pop_front();
\r }
\r}
\r\rWhoWasGroup::WhoWasGroup(userrec* user) : host(NULL), dhost(NULL), ident(NULL), server(NULL), gecos(NULL), signon(user->signon)
\r{
\r this->host = strdup(user->host);
\r this->dhost = strdup(user->dhost);
\r this->ident = strdup(user->ident);
\r this->server = user->server;
\r this->gecos = strdup(user->fullname);
\r}
\r\rWhoWasGroup::~WhoWasGroup()
\r{
\r if (host)
\r free(host);
\r if (dhost)
\r free(dhost);
\r if (ident)
\r free(ident);
\r if (gecos)
\r free(gecos);
\r}
\r\r/* every hour, run this function which removes all entries older than Config->WhoWasMaxKeep */
\rvoid WhoWasMaintainTimer::Tick(time_t t)
\r{
\r command_t* whowas_command = ServerInstance->Parser->GetHandler("WHOWAS");
\r if (whowas_command)
\r {
\r std::deque<classbase*> params;
\r whowas_command->HandleInternal(WHOWAS_MAINTAIN, params);
\r }
\r}
\r