mirror of
https://github.com/anope/anope.git
synced 2026-06-25 10:56:37 +02:00
Adam
500 lines
13 KiB
C++
500 lines
13 KiB
C++
/* OperServ core functions
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*
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* (C) 2003-2010 Anope Team
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* Contact us at team@anope.org
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*
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* Please read COPYING and README for further details.
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*
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* Based on the original code of Epona by Lara.
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* Based on the original code of Services by Andy Church.
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*/
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/*************************************************************************/
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#include "module.h"
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void defcon_sendlvls(User *u);
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void runDefCon();
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void defconParseModeString(const char *str);
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void resetDefCon(int level);
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static char *defconReverseModes(const char *modes);
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class DefConTimeout;
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static DefConTimeout *timeout;
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class DefConTimeout : public Timer
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{
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int level;
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public:
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DefConTimeout(int newlevel) : Timer(Config.DefConTimeOut), level(newlevel) { }
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void Tick(time_t)
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{
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if (Config.DefConLevel != level)
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{
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Config.DefConLevel = level;
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FOREACH_MOD(I_OnDefconLevel, OnDefconLevel(level));
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Alog() << "Defcon level timeout, returning to lvl " << level;
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ircdproto->SendGlobops(OperServ, getstring(OPER_DEFCON_WALL), Config.s_OperServ, level);
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if (Config.GlobalOnDefcon)
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{
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if (Config.DefConOffMessage)
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oper_global(NULL, "%s", Config.DefConOffMessage);
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else
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oper_global(NULL, getstring(DEFCON_GLOBAL), Config.DefConLevel);
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if (Config.GlobalOnDefconMore && !Config.DefConOffMessage)
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oper_global(NULL, "%s", Config.DefconMessage);
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}
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runDefCon();
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}
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}
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};
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class CommandOSDEFCON : public Command
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{
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public:
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CommandOSDEFCON() : Command("DEFCON", 1, 1, "operserv/defcon")
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{
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}
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CommandReturn Execute(User *u, const std::vector<ci::string> ¶ms)
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{
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const char *lvl = params[0].c_str();
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int newLevel = 0;
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const char *langglobal = getstring(DEFCON_GLOBAL);
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if (!lvl)
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{
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notice_lang(Config.s_OperServ, u, OPER_DEFCON_CHANGED, Config.DefConLevel);
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defcon_sendlvls(u);
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return MOD_CONT;
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}
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newLevel = atoi(lvl);
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if (newLevel < 1 || newLevel > 5)
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{
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this->OnSyntaxError(u, "");
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return MOD_CONT;
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}
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Config.DefConLevel = newLevel;
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FOREACH_MOD(I_OnDefconLevel, OnDefconLevel(newLevel));
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if (timeout)
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{
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delete timeout;
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timeout = NULL;
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}
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if (Config.DefConTimeOut)
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timeout = new DefConTimeout(5);
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notice_lang(Config.s_OperServ, u, OPER_DEFCON_CHANGED, Config.DefConLevel);
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defcon_sendlvls(u);
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Alog() << "Defcon level changed to " << newLevel << " by Oper " << u->nick;
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ircdproto->SendGlobops(OperServ, getstring(OPER_DEFCON_WALL), u->nick.c_str(), newLevel);
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/* Global notice the user what is happening. Also any Message that
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the Admin would like to add. Set in config file. */
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if (Config.GlobalOnDefcon)
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{
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if (Config.DefConLevel == 5 && Config.DefConOffMessage)
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oper_global(NULL, "%s", Config.DefConOffMessage);
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else
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oper_global(NULL, langglobal, Config.DefConLevel);
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}
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if (Config.GlobalOnDefconMore)
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{
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if (!Config.DefConOffMessage || Config.DefConLevel != 5)
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oper_global(NULL, "%s", Config.DefconMessage);
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}
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/* Run any defcon functions, e.g. FORCE CHAN MODE */
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runDefCon();
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return MOD_CONT;
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}
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bool OnHelp(User *u, const ci::string &subcommand)
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{
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notice_help(Config.s_OperServ, u, OPER_HELP_DEFCON);
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return true;
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}
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void OnSyntaxError(User *u, const ci::string &subcommand)
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{
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syntax_error(Config.s_OperServ, u, "DEFCON", OPER_DEFCON_SYNTAX);
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}
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void OnServHelp(User *u)
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{
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notice_lang(Config.s_OperServ, u, OPER_HELP_CMD_DEFCON);
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}
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};
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class OSDEFCON : public Module
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{
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public:
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OSDEFCON(const std::string &modname, const std::string &creator) : Module(modname, creator)
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{
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if (!Config.DefConLevel)
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throw ModuleException("Invalid configuration settings");
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this->SetAuthor("Anope");
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this->SetType(CORE);
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Implementation i[] = { I_OnPreUserConnect, I_OnChannelModeSet, I_OnChannelModeUnset, I_OnPreCommandRun, I_OnPreCommand, I_OnUserConnect, I_OnChannelModeAdd, I_OnChannelCreate };
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ModuleManager::Attach(i, this, 8);
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this->AddCommand(OperServ, new CommandOSDEFCON());
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defconParseModeString(Config.DefConChanModes);
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}
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EventReturn OnPreUserConnect(User *u)
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{
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if (u->server->IsSynced() && CheckDefCon(DEFCON_AKILL_NEW_CLIENTS) && !u->server->IsULined())
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{
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if (CheckDefCon(DEFCON_AKILL_NEW_CLIENTS))
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{
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Alog() << "DEFCON: adding akill for *@" << u->host;
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XLine *x = SGLine->Add(NULL, NULL, ci::string("*@") + u->host, time(NULL) + Config.DefConAKILL, Config.DefConAkillReason ? Config.DefConAkillReason : "DEFCON AKILL");
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if (x)
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x->By = Config.s_OperServ;
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}
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if (CheckDefCon(DEFCON_NO_NEW_CLIENTS) || CheckDefCon(DEFCON_AKILL_NEW_CLIENTS))
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kill_user(Config.s_OperServ, u->nick, Config.DefConAkillReason);
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return EVENT_STOP;
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}
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return EVENT_CONTINUE;
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}
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EventReturn OnChannelModeSet(Channel *c, ChannelModeName Name, const std::string ¶m)
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{
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ChannelMode *cm = ModeManager::FindChannelModeByName(Name);
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if (CheckDefCon(DEFCON_FORCE_CHAN_MODES) && cm && DefConModesOff.HasFlag(Name))
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{
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c->RemoveMode(OperServ, Name, param);
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return EVENT_STOP;
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}
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return EVENT_CONTINUE;
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}
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EventReturn OnChannelModeUnset(Channel *c, ChannelModeName Name, const std::string &)
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{
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ChannelMode *cm = ModeManager::FindChannelModeByName(Name);
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if (CheckDefCon(DEFCON_FORCE_CHAN_MODES) && cm && DefConModesOn.HasFlag(Name))
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{
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std::string param;
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if (GetDefConParam(Name, param))
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c->SetMode(OperServ, Name, param);
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else
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c->SetMode(OperServ, Name);
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return EVENT_STOP;
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}
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return EVENT_CONTINUE;
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}
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EventReturn OnPreCommandRun(User *u, BotInfo *bi, const ci::string &command, const ci::string &message, Command *c)
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{
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if (!c)
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{
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if (CheckDefCon(DEFCON_SILENT_OPER_ONLY) && !is_oper(u))
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return EVENT_STOP;
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}
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if ((CheckDefCon(DEFCON_OPER_ONLY) || CheckDefCon(DEFCON_SILENT_OPER_ONLY)) && !is_oper(u))
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{
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if (!CheckDefCon(DEFCON_SILENT_OPER_ONLY))
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notice_lang(bi->nick.c_str(), u, OPER_DEFCON_DENIED);
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return EVENT_STOP;
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}
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return EVENT_CONTINUE;
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}
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EventReturn OnPreCommand(User *u, const std::string &service, const ci::string &command, const std::vector<ci::string> ¶ms)
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{
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if (service == Config.s_NickServ)
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{
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if (command == "SET")
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{
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if (!params.empty() && params[0] == "MLOCK" && CheckDefCon(DEFCON_NO_MLOCK_CHANGE))
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{
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notice_lang(Config.s_ChanServ, u, OPER_DEFCON_DENIED);
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return EVENT_STOP;
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}
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}
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else if (command == "REGISTER" || command == "GROUP")
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{
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if (CheckDefCon(DEFCON_NO_NEW_NICKS))
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{
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notice_lang(Config.s_NickServ, u, OPER_DEFCON_DENIED);
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return EVENT_STOP;
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}
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}
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}
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else if (service == Config.s_ChanServ)
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{
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if (command == "REGISTER")
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{
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if (CheckDefCon(DEFCON_NO_NEW_CHANNELS))
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{
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notice_lang(Config.s_ChanServ, u, OPER_DEFCON_DENIED);
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return EVENT_STOP;
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}
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}
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}
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else if (service == Config.s_MemoServ)
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{
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if (command == "SEND" || command == "SENDALL")
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{
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if (CheckDefCon(DEFCON_NO_NEW_MEMOS))
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{
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notice_lang(Config.s_MemoServ, u, OPER_DEFCON_DENIED);
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return EVENT_STOP;
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}
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}
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}
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return EVENT_CONTINUE;
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}
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void OnUserConnect(User *u)
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{
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Session *session = findsession(u->host);
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Exception *exception = find_hostip_exception(u->host, u->hostip);
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if (CheckDefCon(DEFCON_REDUCE_SESSION) && !exception)
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{
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if (session && session->count > Config.DefConSessionLimit)
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{
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if (Config.SessionLimitExceeded)
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ircdproto->SendMessage(OperServ, u->nick.c_str(), Config.SessionLimitExceeded, u->host);
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if (Config.SessionLimitDetailsLoc)
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ircdproto->SendMessage(OperServ, u->nick.c_str(), "%s", Config.SessionLimitDetailsLoc);
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kill_user(Config.s_OperServ, u->nick, "Session limit exceeded");
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++session->hits;
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if (Config.MaxSessionKill && session->hits >= Config.MaxSessionKill)
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{
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SGLine->Add(NULL, NULL, ci::string("*@") + u->host, time(NULL) + Config.SessionAutoKillExpiry, "Session limit exceeded");
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ircdproto->SendGlobops(OperServ, "Added a temporary AKILL for \2*@%s\2 due to excessive connections", u->host);
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}
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}
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}
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}
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void OnChannelModeAdd(ChannelMode *cm)
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{
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if (Config.DefConChanModes)
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{
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std::string modes = Config.DefConChanModes;
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if (modes.find(cm->ModeChar) != std::string::npos)
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/* New mode has been added to Anope, check to see if defcon
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* requires it
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*/
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defconParseModeString(Config.DefConChanModes);
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}
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}
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void OnChannelCreate(Channel *c)
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{
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if (CheckDefCon(DEFCON_FORCE_CHAN_MODES))
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c->SetModes(OperServ, false, Config.DefConChanModes);
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}
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};
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/**
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* Send a message to the oper about which precautions are "active" for this level
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**/
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void defcon_sendlvls(User *u)
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{
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if (CheckDefCon(DEFCON_NO_NEW_CHANNELS))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_NO_NEW_CHANNELS);
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if (CheckDefCon(DEFCON_NO_NEW_NICKS))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_NO_NEW_NICKS);
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if (CheckDefCon(DEFCON_NO_MLOCK_CHANGE))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_NO_MLOCK_CHANGE);
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if (CheckDefCon(DEFCON_FORCE_CHAN_MODES) && Config.DefConChanModes)
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_FORCE_CHAN_MODES, Config.DefConChanModes);
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if (CheckDefCon(DEFCON_REDUCE_SESSION))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_REDUCE_SESSION, Config.DefConSessionLimit);
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if (CheckDefCon(DEFCON_NO_NEW_CLIENTS))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_NO_NEW_CLIENTS);
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if (CheckDefCon(DEFCON_OPER_ONLY))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_OPER_ONLY);
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if (CheckDefCon(DEFCON_SILENT_OPER_ONLY))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_SILENT_OPER_ONLY);
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if (CheckDefCon(DEFCON_AKILL_NEW_CLIENTS))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_AKILL_NEW_CLIENTS);
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if (CheckDefCon(DEFCON_NO_NEW_MEMOS))
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notice_lang(Config.s_OperServ, u, OPER_HELP_DEFCON_NO_NEW_MEMOS);
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}
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void runDefCon()
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{
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char *newmodes;
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if (CheckDefCon(DEFCON_FORCE_CHAN_MODES))
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{
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if (Config.DefConChanModes && !DefConModesSet)
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{
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if (Config.DefConChanModes[0] == '+' || Config.DefConChanModes[0] == '-')
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{
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Alog() << "DEFCON: setting " << Config.DefConChanModes << " on all channels";
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DefConModesSet = true;
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MassChannelModes(OperServ, Config.DefConChanModes);
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}
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}
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}
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else
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{
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if (Config.DefConChanModes && DefConModesSet)
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{
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if (Config.DefConChanModes[0] == '+' || Config.DefConChanModes[0] == '-')
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{
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DefConModesSet = false;
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if ((newmodes = defconReverseModes(Config.DefConChanModes)))
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{
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Alog() << "DEFCON: setting " << newmodes << " on all channels";
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MassChannelModes(OperServ, newmodes);
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delete [] newmodes;
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}
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}
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}
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}
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}
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/* Parse the defcon mlock mode string and set the correct global vars.
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*
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* @param str mode string to parse
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* @return 1 if accepted, 0 if failed
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*/
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void defconParseModeString(const char *str)
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{
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int add = -1; /* 1 if adding, 0 if deleting, -1 if neither */
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unsigned char mode;
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ChannelMode *cm;
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ChannelModeParam *cmp;
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std::string modes, param;
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if (!str)
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return;
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spacesepstream ss(str);
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DefConModesOn.ClearFlags();
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DefConModesOff.ClearFlags();
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ss.GetToken(modes);
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/* Loop while there are modes to set */
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for (unsigned i = 0, end = modes.size(); i < end; ++i)
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{
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mode = modes[i];
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switch (mode)
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{
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case '+':
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add = 1;
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continue;
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case '-':
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add = 0;
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continue;
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default:
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if (add < 0)
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continue;
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}
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if ((cm = ModeManager::FindChannelModeByChar(mode)))
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{
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if (cm->Type == MODE_STATUS || cm->Type == MODE_LIST || !cm->CanSet(NULL))
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{
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Alog() << "DefConChanModes mode character '" << mode << "' cannot be locked";
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continue;
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}
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else if (add)
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{
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DefConModesOn.SetFlag(cm->Name);
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DefConModesOff.UnsetFlag(cm->Name);
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if (cm->Type == MODE_PARAM)
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{
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cmp = dynamic_cast<ChannelModeParam *>(cm);
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if (!ss.GetToken(param))
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{
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Alog() << "DefConChanModes mode character '" << mode << "' has no parameter while one is expected";
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continue;
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}
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if (!cmp->IsValid(param))
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continue;
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SetDefConParam(cmp->Name, param);
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}
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}
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else
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{
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if (DefConModesOn.HasFlag(cm->Name))
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{
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DefConModesOn.UnsetFlag(cm->Name);
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if (cm->Type == MODE_PARAM)
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UnsetDefConParam(cm->Name);
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}
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}
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}
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}
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/* We can't mlock +L if +l is not mlocked as well. */
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if ((cm = ModeManager::FindChannelModeByName(CMODE_REDIRECT)) && DefConModesOn.HasFlag(cm->Name) && !DefConModesOn.HasFlag(CMODE_LIMIT))
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{
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DefConModesOn.UnsetFlag(CMODE_REDIRECT);
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Alog() << "DefConChanModes must lock mode +l as well to lock mode +L";
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}
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/* Some ircd we can't set NOKNOCK without INVITE */
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/* So check if we need there is a NOKNOCK MODE and that we need INVITEONLY */
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if (ircd->knock_needs_i && (cm = ModeManager::FindChannelModeByName(CMODE_NOKNOCK)) && DefConModesOn.HasFlag(cm->Name) && !DefConModesOn.HasFlag(CMODE_INVITE))
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{
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DefConModesOn.UnsetFlag(CMODE_NOKNOCK);
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Alog() << "DefConChanModes must lock mode +i as well to lock mode +K";
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}
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}
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static char *defconReverseModes(const char *modes)
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{
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char *newmodes = NULL;
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unsigned i = 0;
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if (!modes)
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return NULL;
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if (!(newmodes = new char[strlen(modes) + 1]))
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return NULL;
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for (i = 0; i < strlen(modes); ++i)
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{
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if (modes[i] == '+')
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newmodes[i] = '-';
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else if (modes[i] == '-')
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newmodes[i] = '+';
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else
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newmodes[i] = modes[i];
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}
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newmodes[i] = '\0';
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return newmodes;
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}
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MODULE_INIT(OSDEFCON)
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