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path: root/src/modules/m_helpop.cpp
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/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2010 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"

/* $ModDesc: /helpop Command, Works like Unreal helpop */
static std::map<irc::string, std::string> helpop_map;


/** Handles user mode +h
 */
class Helpop : public ModeHandler
{
 public:
	Helpop(Module* Creator) : ModeHandler(Creator, "helpop", 'h', PARAM_NONE, MODETYPE_USER)
	{
		oper = true;
	}

	ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
	{
		if (adding)
		{
			if (!dest->IsModeSet('h'))
			{
				dest->SetMode('h',true);
				return MODEACTION_ALLOW;
			}
		}
		else
		{
			if (dest->IsModeSet('h'))
			{
				dest->SetMode('h',false);
				return MODEACTION_ALLOW;
			}
		}

		return MODEACTION_DENY;
	}
};

/** Handles /HELPOP
 */
class CommandHelpop : public Command
{
 public:
	CommandHelpop(Module* Creator) : Command(Creator, "HELP", 0)
	{
		syntax = "<any-text>";
	}

	CmdResult Handle (const std::vector<std::string> &parameters, User *user)
	{
		irc::string parameter("start");
		if (parameters.size() > 0)
			parameter = parameters[0].c_str();

		if (parameter == "index")
		{
			/* iterate over all helpop items */
			user->WriteServ("290 %s :HELPOP topic index", user->nick.c_str());
			for (std::map<irc::string, std::string>::iterator iter = helpop_map.begin(); iter != helpop_map.end(); iter++)
			{
				user->WriteServ("292 %s :  %s", user->nick.c_str(), iter->first.c_str());
			}
			user->WriteServ("292 %s :*** End of HELPOP topic index", user->nick.c_str());
		}
		else
		{
			user->WriteServ("290 %s :*** HELPOP for %s", user->nick.c_str(), parameter.c_str());
			user->WriteServ("292 %s : -", user->nick.c_str());

			std::map<irc::string, std::string>::iterator iter = helpop_map.find(parameter);

			if (iter == helpop_map.end())
			{
				iter = helpop_map.find("nohelp");
			}

			std::string value = iter->second;
			irc::sepstream stream(value, '\n');
			std::string token = "*";

			while (stream.GetToken(token))
			{
				// Writing a blank line will not work with some clients
				if (token.empty())
					user->WriteServ("292 %s : ", user->nick.c_str());
				else
					user->WriteServ("292 %s :%s", user->nick.c_str(), token.c_str());
			}

			user->WriteServ("292 %s : -", user->nick.c_str());
			user->WriteServ("292 %s :*** End of HELPOP", user->nick.c_str());
		}
		return CMD_SUCCESS;
	}
};

class ModuleHelpop : public Module
{
	private:
		std::string  h_file;
		CommandHelpop cmd;
		Helpop ho;

	public:
		ModuleHelpop()
			: cmd(this), ho(this)
		{
			ReadConfig();
			if (!ServerInstance->Modes->AddMode(&ho))
				throw ModuleException("Could not add new modes!");
			ServerInstance->AddCommand(&cmd);
			Implementation eventlist[] = { I_OnRehash, I_OnWhois };
			ServerInstance->Modules->Attach(eventlist, this, 2);
		}

		virtual void ReadConfig()
		{
			ConfigReader MyConf;

			helpop_map.clear();

			ConfigTagList tags = ServerInstance->Config->ConfTags("helpop");
			for(ConfigIter i = tags.first; i != tags.second; ++i)
			{
				ConfigTag* tag = i->second;
				irc::string key = assign(tag->getString("key"));
				std::string value;
				tag->readString("value", value, true); /* Linefeeds allowed */

				if (key == "index")
				{
					throw ModuleException("m_helpop: The key 'index' is reserved for internal purposes. Please remove it.");
				}

				helpop_map[key] = value;
			}

			if (helpop_map.find("start") == helpop_map.end())
			{
				// error!
				throw ModuleException("m_helpop: Helpop file is missing important entry 'start'. Please check the example conf.");
			}
			else if (helpop_map.find("nohelp") == helpop_map.end())
			{
				// error!
				throw ModuleException("m_helpop: Helpop file is missing important entry 'nohelp'. Please check the example conf.");
			}

		}


		virtual void OnRehash(User* user)
		{
			ReadConfig();
		}

		virtual void OnWhois(User* src, User* dst)
		{
			if (dst->IsModeSet('h'))
			{
				ServerInstance->SendWhoisLine(src, dst, 310, std::string(src->nick)+" "+std::string(dst->nick)+" :is available for help.");
			}
		}

		virtual ~ModuleHelpop()
		{
		}

		virtual Version GetVersion()
		{
			return Version("/helpop Command, Works like Unreal helpop", VF_VENDOR | VF_COMMON);
		}
};

MODULE_INIT(ModuleHelpop)