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path: root/src/core/os_ignore.c
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/* OperServ core functions
 *
 * (C) 2003-2010 Anope Team
 * Contact us at team@anope.org
 *
 * Please read COPYING and README for further details.
 *
 * Based on the original code of Epona by Lara.
 * Based on the original code of Services by Andy Church.
 *
 * $Id$
 *
 */
/*************************************************************************/

#include "module.h"

class CommandOSIgnore : public Command
{
 private:
	CommandReturn DoAdd(User *u, const std::vector<ci::string> &params)
	{
		const char *time = params.size() > 1 ? params[1].c_str() : NULL;
		const char *nick = params.size() > 2 ? params[2].c_str() : NULL;
		time_t t;

		if (!time || !nick)
		{
			this->OnSyntaxError(u, "ADD");
			return MOD_CONT;
		}
		else
		{
			t = dotime(time);

			if (t <= -1)
			{
				notice_lang(Config.s_OperServ, u, OPER_IGNORE_VALID_TIME);
				return MOD_CONT;
			}
			else if (!t)
			{
				add_ignore(nick, t);
				notice_lang(Config.s_OperServ, u, OPER_IGNORE_PERM_DONE, nick);
			}
			else
			{
				add_ignore(nick, t);
				notice_lang(Config.s_OperServ, u, OPER_IGNORE_TIME_DONE, nick, time);
			}
		}

		return MOD_CONT;
	}

	CommandReturn DoList(User *u)
	{
		IgnoreData *id;

		if (!ignore)
		{
			notice_lang(Config.s_OperServ, u, OPER_IGNORE_LIST_EMPTY);
			return MOD_CONT;
		}

		notice_lang(Config.s_OperServ, u, OPER_IGNORE_LIST);
		for (id = ignore; id; id = id->next)
			u->SendMessage(Config.s_OperServ, "%s", id->mask);

		return MOD_CONT;
	}

	CommandReturn DoDel(User *u, const std::vector<ci::string> &params)
	{
		const char *nick = params.size() > 1 ? params[1].c_str() : NULL;
		if (!nick)
			this->OnSyntaxError(u, "DEL");
		else
		{
			if (delete_ignore(nick))
			{
				notice_lang(Config.s_OperServ, u, OPER_IGNORE_DEL_DONE, nick);
				return MOD_CONT;
			}
			notice_lang(Config.s_OperServ, u, OPER_IGNORE_LIST_NOMATCH, nick);
		}

		return MOD_CONT;
	}

	CommandReturn DoClear(User *u)
	{
		clear_ignores();
		notice_lang(Config.s_OperServ, u, OPER_IGNORE_LIST_CLEARED);

		return MOD_CONT;
	}
 public:
	CommandOSIgnore() : Command("IGNORE", 1, 3, "operserv/ignore")
	{
	}

	CommandReturn Execute(User *u, const std::vector<ci::string> &params)
	{
		ci::string cmd = params[0];

		if (cmd == "ADD")
			return this->DoAdd(u, params);
		else if (cmd == "LIST")
			return this->DoList(u);
		else if (cmd == "DEL")
			return this->DoDel(u, params);
		else if (cmd == "CLEAR")
			return this->DoClear(u);
		else
			this->OnSyntaxError(u, "");

		return MOD_CONT;
	}

	bool OnHelp(User *u, const ci::string &subcommand)
	{
		notice_help(Config.s_OperServ, u, OPER_HELP_IGNORE);
		return true;
	}

	void OnSyntaxError(User *u, const ci::string &subcommand)
	{
		syntax_error(Config.s_OperServ, u, "IGNORE", OPER_IGNORE_SYNTAX);
	}
};

class OSIgnore : public Module
{
 public:
	OSIgnore(const std::string &modname, const std::string &creator) : Module(modname, creator)
	{
		this->SetAuthor("Anope");
		this->SetVersion("$Id$");
		this->SetType(CORE);
		this->AddCommand(OPERSERV, new CommandOSIgnore());

		Implementation i[] = { I_OnOperServHelp, I_OnDatabaseRead, I_OnDatabaseWrite };
		ModuleManager::Attach(i, this, 3);
	}

	void OnOperServHelp(User *u)
	{
		notice_lang(Config.s_OperServ, u, OPER_HELP_CMD_IGNORE);
	}

	EventReturn OnDatabaseRead(const std::vector<std::string> &params)
	{
		std::string buf;

		if (params[0] == "OS" && params.size() >= 4 && params[1] == "IGNORE")
		{
			IgnoreData *ign = new IgnoreData;
			ign->mask = sstrdup(params[2].c_str());
			ign->time = strtol(params[3].c_str(), NULL, 10);
			ign->prev = NULL;
			ign->next = ignore;
			if (ignore)
			ignore->prev = ign;
			ignore = ign;

			return EVENT_STOP;
		}

		return EVENT_CONTINUE;
	}

	void OnDatabaseWrite(void (*Write)(const std::string &))
	{
		IgnoreData *ign, *next;
		time_t now = time(NULL);

		for (ign = ignore; ign; ign = next)
		{
			next = ign->next;

			if (ign->time != 0 && ign->time <= now)
			{
				Alog(LOG_DEBUG) << "[os_ignore] Expiring ignore entry " << ign->mask;
				if (ign->prev)
					ign->prev->next = ign->next;
				else if (ignore == ign)
					ignore = ign->next;
				if (ign->next)
					ign->next->prev = ign->prev;
				delete [] ign->mask;
				delete ign;
				ign = NULL;
			}
			else
			{
				std::stringstream buf;
				buf <<  "OS IGNORE " << ign->mask << " " << ign->time;
				Write(buf.str());
			}
		}
	}
};

MODULE_INIT(OSIgnore)