C++ ModeHandler::GetModeChar方法代码示例

	ModResult OnCheckBan(User *user, Channel *c, const std::string& mask)
	{
		if ((mask.length() > 2) && (mask[0] == 'j') && (mask[1] == ':'))
		{
			std::string rm = mask.substr(2);
			char status = 0;
			ModeHandler* mh = ServerInstance->Modes->FindPrefix(rm[0]);
			if (mh)
			{
				rm = mask.substr(3);
				status = mh->GetModeChar();
			}
			for (UCListIter i = user->chans.begin(); i != user->chans.end(); i++)
			{
				if (InspIRCd::Match((**i).name, rm))
				{
					if (status)
					{
						Membership* memb = (**i).GetUser(user);
						if (memb && memb->hasMode(status))
							return MOD_RES_DENY;
					}
					else
						return MOD_RES_DENY;
				}
			}
		}
		return MOD_RES_PASSTHRU;
	}

	void OnPostJoin(Membership *memb)
	{
		if (!IS_LOCAL(memb->user))
			return;

		modelist* list = mh.extItem.get(memb->chan);
		if (list)
		{
			std::string modeline("+");
			std::vector<std::string> modechange;
			modechange.push_back(memb->chan->name);
			for (modelist::iterator it = list->begin(); it != list->end(); it++)
			{
				std::string::size_type colon = it->mask.find(':');
				if (colon == std::string::npos)
					continue;
				if (memb->chan->CheckBan(memb->user, it->mask.substr(colon+1)))
				{
					ModeHandler* given = mh.FindMode(it->mask.substr(0, colon));
					if (given && given->GetPrefixRank())
						modeline.push_back(given->GetModeChar());
				}
			}
			modechange.push_back(modeline);
			for(std::string::size_type i = modeline.length(); i > 1; --i) // we use "i > 1" instead of "i" so we skip the +
				modechange.push_back(memb->user->nick);
			if(modechange.size() >= 3)
				ServerInstance->SendGlobalMode(modechange, ServerInstance->FakeClient);
		}
	}

void DataKeeper::SaveMemberData(Channel* chan, std::vector<OwnedModesExts>& memberdatalist)
{
	ModesExts currdata;
	const Channel::MemberMap& users = chan->GetUsers();
	for (Channel::MemberMap::const_iterator i = users.begin(); i != users.end(); ++i)
	{
		Membership* const memb = i->second;

		for (size_t j = 0; j < handledmodes[MODETYPE_CHANNEL].size(); j++)
		{
			ModeHandler* mh = handledmodes[MODETYPE_CHANNEL][j].mh;
			if ((mh->IsPrefixMode()) && (memb->hasMode(mh->GetModeChar())))
				currdata.modelist.push_back(InstanceData(j, memb->user->uuid)); // Need to pass the user's uuid to the mode parser to set the mode later
		}

		SaveExtensions(memb, currdata.extlist);

		// Same logic as in DoSaveUsers()
		if (!currdata.empty())
		{
			memberdatalist.push_back(OwnedModesExts(memb->user->uuid));
			memberdatalist.back().swap(currdata);
		}
	}
}

std::string ModeParser::GiveModeList(ModeType mt)
{
	std::string type1;	/* Listmodes EXCEPT those with a prefix */
	std::string type2;	/* Modes that take a param when adding or removing */
	std::string type3;	/* Modes that only take a param when adding */
	std::string type4;	/* Modes that dont take a param */

	for (unsigned char mode = 'A'; mode <= 'z'; mode++)
	{
		ModeHandler* mh = modehandlers[mt][mode-65];
		 /* One parameter when adding */
		if (mh)
		{
			if (mh->GetNumParams(true))
			{
				PrefixMode* pm = mh->IsPrefixMode();
				if ((mh->IsListMode()) && ((!pm) || (pm->GetPrefix() == 0)))
				{
					type1 += mh->GetModeChar();
				}
				else
				{
					/* ... and one parameter when removing */
					if (mh->GetNumParams(false))
					{
						/* But not a list mode */
						if (!pm)
						{
							type2 += mh->GetModeChar();
						}
					}
					else
					{
						/* No parameters when removing */
						type3 += mh->GetModeChar();
					}
				}
			}
			else
			{
				type4 += mh->GetModeChar();
			}
		}
	}

	return type1 + "," + type2 + "," + type3 + "," + type4;
}

static std::string BuildModeList(ModeType type)
{
	std::vector<std::string> modes;
	for(char c='A'; c <= 'z'; c++)
	{
		ModeHandler* mh = ServerInstance->Modes->FindMode(c, type);
		if (mh)
		{
			std::string mdesc = mh->name;
			mdesc.push_back('=');
			if (mh->GetPrefix())
				mdesc.push_back(mh->GetPrefix());
			if (mh->GetModeChar())
				mdesc.push_back(mh->GetModeChar());
			modes.push_back(mdesc);
		}
	}
	sort(modes.begin(), modes.end());
	irc::stringjoiner line(" ", modes, 0, modes.size() - 1);
	return line.GetJoined();
}

unsigned int ModeParser::ProcessSingle(User* user, Channel* targetchannel, User* targetuser, Modes::ChangeList& changelist, ModeProcessFlag flags, unsigned int beginindex)
{
	LastParse.clear();
	LastChangeList.clear();

	unsigned int modes_processed = 0;
	std::string output_mode;
	std::string output_parameters;

	char output_pm = '\0'; // current output state, '+' or '-'
	Modes::ChangeList::List& list = changelist.getlist();
	for (Modes::ChangeList::List::iterator i = list.begin()+beginindex; i != list.end(); ++i)
	{
		modes_processed++;

		Modes::Change& item = *i;
		ModeHandler* mh = item.mh;

		// If the mode is supposed to have a parameter then we first take a look at item.param
		// and, if we were asked to, also handle mode merges now
		if (mh->GetNumParams(item.adding))
		{
			// Skip the mode if the parameter does not pass basic validation
			if (!IsModeParamValid(user, targetchannel, targetuser, item))
				continue;

			// If this is a merge and we won we don't apply this mode
			if ((flags & MODE_MERGE) && (!ShouldApplyMergedMode(targetchannel, item)))
				continue;
		}

		ModeAction ma = TryMode(user, targetuser, targetchannel, item, (!(flags & MODE_CHECKACCESS)));

		if (ma != MODEACTION_ALLOW)
			continue;

		char needed_pm = item.adding ? '+' : '-';
		if (needed_pm != output_pm)
		{
			output_pm = needed_pm;
			output_mode.append(1, output_pm);
		}
		output_mode.push_back(mh->GetModeChar());

		if (!item.param.empty())
		{
			output_parameters.push_back(' ');
			output_parameters.append(item.param);
		}
		LastChangeList.push(mh, item.adding, item.param);

		if ((output_mode.length() + output_parameters.length() > 450)
				|| (output_mode.length() > 100)
				|| (LastChangeList.size() >= ServerInstance->Config->Limits.MaxModes))
		{
			/* mode sequence is getting too long */
			break;
		}
	}

	if (!output_mode.empty())
	{
		LastParse = targetchannel ? targetchannel->name : targetuser->nick;
		LastParse.append(" ");
		LastParse.append(output_mode);
		LastParse.append(output_parameters);

		if (targetchannel)
			targetchannel->WriteChannel(user, "MODE " + LastParse);
		else
			targetuser->WriteFrom(user, "MODE " + LastParse);

		FOREACH_MOD(OnMode, (user, targetuser, targetchannel, LastChangeList, flags, output_mode));
	}

	return modes_processed;
}

ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, Modes::Change& mcitem, bool SkipACL)
{
	ModeType type = chan ? MODETYPE_CHANNEL : MODETYPE_USER;

	ModeHandler* mh = mcitem.mh;
	bool adding = mcitem.adding;
	int pcnt = mh->GetNumParams(adding);

	std::string& parameter = mcitem.param;
	// crop mode parameter size to 250 characters
	if (parameter.length() > 250 && adding)
		parameter.erase(250);

	ModResult MOD_RESULT;
	FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, mh, parameter, adding));

	if (IS_LOCAL(user) && (MOD_RESULT == MOD_RES_DENY))
		return MODEACTION_DENY;

	const char modechar = mh->GetModeChar();

	if (chan && !SkipACL && (MOD_RESULT != MOD_RES_ALLOW))
	{
		MOD_RESULT = mh->AccessCheck(user, chan, parameter, adding);

		if (MOD_RESULT == MOD_RES_DENY)
			return MODEACTION_DENY;
		if (MOD_RESULT == MOD_RES_PASSTHRU)
		{
			unsigned int neededrank = mh->GetLevelRequired();
			/* Compare our rank on the channel against the rank of the required prefix,
			 * allow if >= ours. Because mIRC and xchat throw a tizz if the modes shown
			 * in NAMES(X) are not in rank order, we know the most powerful mode is listed
			 * first, so we don't need to iterate, we just look up the first instead.
			 */
			unsigned int ourrank = chan->GetPrefixValue(user);
			if (ourrank < neededrank)
			{
				PrefixMode* neededmh = NULL;
				for(char c='A'; c <= 'z'; c++)
				{
					PrefixMode* privmh = FindPrefixMode(c);
					if (privmh && privmh->GetPrefixRank() >= neededrank)
					{
						// this mode is sufficient to allow this action
						if (!neededmh || privmh->GetPrefixRank() < neededmh->GetPrefixRank())
							neededmh = privmh;
					}
				}
				if (neededmh)
					user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s :You must have channel %s access or above to %sset channel mode %c",
						chan->name.c_str(), neededmh->name.c_str(), adding ? "" : "un", modechar);
				else
					user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s :You cannot %sset channel mode %c",
						chan->name.c_str(), adding ? "" : "un", modechar);
				return MODEACTION_DENY;
			}
		}
	}

	// Ask mode watchers whether this mode change is OK
	std::pair<ModeWatcherMap::iterator, ModeWatcherMap::iterator> itpair = modewatchermap.equal_range(mh->name);
	for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
	{
		ModeWatcher* mw = i->second;
		if (mw->GetModeType() == type)
		{
			if (!mw->BeforeMode(user, targetuser, chan, parameter, adding))
				return MODEACTION_DENY;

			// A module whacked the parameter completely, and there was one. Abort.
			if (pcnt && parameter.empty())
				return MODEACTION_DENY;
		}
	}

	if (IS_LOCAL(user) && !user->IsOper())
	{
		char* disabled = (type == MODETYPE_CHANNEL) ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes;
		if (disabled[modechar - 'A'])
		{
			user->WriteNumeric(ERR_NOPRIVILEGES, ":Permission Denied - %s mode %c has been locked by the administrator",
				type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
			return MODEACTION_DENY;
		}
	}

	if (adding && IS_LOCAL(user) && mh->NeedsOper() && !user->HasModePermission(modechar, type))
	{
		/* It's an oper only mode, and they don't have access to it. */
		if (user->IsOper())
		{
			user->WriteNumeric(ERR_NOPRIVILEGES, ":Permission Denied - Oper type %s does not have access to set %s mode %c",
					user->oper->name.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
		}
		else
		{
			user->WriteNumeric(ERR_NOPRIVILEGES, ":Permission Denied - Only operators may set %s mode %c",
					type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
		}
//.........这里部分代码省略.........