nmdchub.cpp

软件是使用VC70

/* 
 * Copyright (C) 2001-2005 Jacek Sieka, arnetheduck on gmail point com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "stdinc.h"
#include "DCPlusPlus.h"

#include "NmdcHub.h"

#include "ResourceManager.h"
#include "ClientManager.h"
#include "SearchManager.h"
#include "ShareManager.h"
#include "CryptoManager.h"
#include "ConnectionManager.h"

#include "Socket.h"
#include "UserCommand.h"
#include "StringTokenizer.h"


NmdcHub::NmdcHub(const string& aHubURL) : Client(aHubURL, '|'), supportFlags(0),  
	adapter(this), state(STATE_CONNECT),
	lastActivity(GET_TICK()), 
	reconnect(true), lastUpdate(0)
{
	TimerManager::getInstance()->addListener(this);

}

NmdcHub::~NmdcHub() throw() {
	TimerManager::getInstance()->removeListener(this);
	Speaker<NmdcHubListener>::removeListeners();

	Lock l(cs);
	clearUsers();
}

void NmdcHub::connect() {
	setRegistered(false);
	setReconnDelay(120 + Util::rand(0, 60));
	reconnect = true;
	supportFlags = 0;
	lastMyInfoA.clear();
 	lastMyInfoB.clear();
	lastUpdate = 0;

	if(socket->isConnected()) {
		disconnect();
	}

	reloadSettings();

	state = STATE_LOCK;

	if(getPort() == 0) {
		setPort(411);
	}
	socket->connect(getAddress(), getPort());
}

void NmdcHub::connect(const User* aUser) {
	checkstate(); 
	dcdebug("NmdcHub::connectToMe %s\n", aUser->getNick().c_str());
	if(SETTING(CONNECTION_TYPE) == SettingsManager::CONNECTION_ACTIVE) {
		send("$ConnectToMe " + toNmdc(aUser->getNick()) + " " + getLocalIp() + ":" + Util::toString(SETTING(IN_PORT)) + "|");
	} else {
		send("$RevConnectToMe " + toNmdc(getNick()) + " " + toNmdc(aUser->getNick())  + "|");
	}
}

int64_t NmdcHub::getAvailable() const {
	Lock l(cs);
	int64_t x = 0;
	for(User::NickMap::const_iterator i = users.begin(); i != users.end(); ++i) {
		x+=i->second->getBytesShared();
	}
	return x;
}

void NmdcHub::refreshUserList(bool unknownOnly /* = false */) {
	Lock l(cs);
	if(unknownOnly) {
		for(User::NickIter i = users.begin(); i != users.end(); ++i) {
			if(i->second->getConnection().empty()) {
				getInfo(i->second);
			}
		}
	} else {
		clearUsers();
		getNickList();
	}
}

void NmdcHub::clearUsers() {
	for(User::NickIter i = users.begin(); i != users.end(); ++i) {
		ClientManager::getInstance()->putUserOffline(i->second);		
	}
	users.clear();
}

void NmdcHub::onLine(const string& aLine) throw() {
	lastActivity = GET_TICK();

	if(aLine.length() == 0)
		return;
	
	if(aLine[0] != '$') {
		// Check if we're being banned...
		if(state != STATE_CONNECTED) {
			if(Util::findSubString(aLine, "banned") != string::npos) {
				reconnect = false;
			}
		}
		Speaker<NmdcHubListener>::fire(NmdcHubListener::Message(), this, Util::validateMessage(fromNmdc(aLine), true));
		return;
	}

	string cmd;
	string param;
	string::size_type x;
	
	if( (x = aLine.find(' ')) == string::npos) {
		cmd = aLine;
	} else {
		cmd = aLine.substr(0, x);
		param = aLine.substr(x+1);
	}

	if(cmd == "$Search") {
		if(state != STATE_CONNECTED) {
			return;
		}
		string::size_type i = 0;
		string::size_type j = param.find(' ', i);
		if(j == string::npos || i == j)
			return;
		
		string seeker = fromNmdc(param.substr(i, j-i));

		// Filter own searches
		if(SETTING(CONNECTION_TYPE) == SettingsManager::CONNECTION_ACTIVE) {
			if(seeker == (getLocalIp() + ":" + Util::toString(SETTING(UDP_PORT)))) {
				return;
			}
		} else {
			// Hub:seeker
			if(Util::stricmp(seeker.c_str() + 4, getNick().c_str()) == 0) {
				return;
			}
		}

		i = j + 1;
		
		{
			Lock l(cs);
			u_int32_t tick = GET_TICK();

			seekers.push_back(make_pair(seeker, tick));

			// First, check if it's a flooder
			FloodIter fi;
			for(fi = flooders.begin(); fi != flooders.end(); ++fi) {
				if(fi->first == seeker) {
					return;
				}
			}

			int count = 0;
			for(fi = seekers.begin(); fi != seekers.end(); ++fi) {
				if(fi->first == seeker)
					count++;

				if(count > 7) {
					if(seeker.compare(0, 4, "Hub:") == 0)
						Speaker<NmdcHubListener>::fire(NmdcHubListener::SearchFlood(), this, seeker.substr(4));
					else
						Speaker<NmdcHubListener>::fire(NmdcHubListener::SearchFlood(), this, seeker + STRING(NICK_UNKNOWN));

					flooders.push_back(make_pair(seeker, tick));
					return;
				}
			}
		}

		int a;
		if(param[i] == 'F') {
			a = SearchManager::SIZE_DONTCARE;
		} else if(param[i+2] == 'F') {
			a = SearchManager::SIZE_ATLEAST;
		} else {
			a = SearchManager::SIZE_ATMOST;
		}
		i += 4;
		j = param.find('?', i);
		if(j == string::npos || i == j)
			return;
		string size = param.substr(i, j-i);
		i = j + 1;
		j = param.find('?', i);
		if(j == string::npos || i == j)
			return;
		int type = Util::toInt(param.substr(i, j-i)) - 1;
		i = j + 1;
		param = param.substr(i);

		if(param.size() > 0) {
			Speaker<NmdcHubListener>::fire(NmdcHubListener::Search(), this, seeker, a, Util::toInt64(size), type, fromNmdc(param));
			
			if(seeker.compare(0, 4, "Hub:") == 0) {
				User::Ptr u;
				{
					Lock l(cs);
					User::NickIter ni = users.find(seeker.substr(4));
					if(ni != users.end() && !ni->second->isSet(User::PASSIVE)) {
						u = ni->second;
						u->setFlag(User::PASSIVE);
					}
				}

				if(u) {
					updated(u);
				}
			}
		}
	} else if(cmd == "$MyINFO") {
		string::size_type i, j;
		i = 5;
		j = param.find(' ', i);
		if( (j == string::npos) || (j == i) )
			return;
		string nick = fromNmdc(param.substr(i, j-i));
		i = j + 1;
		User::Ptr u;
		dcassert(nick.size() > 0);

		{
			Lock l(cs);
			User::NickIter ni = users.find(nick);
			if(ni == users.end()) {
				u = users[nick] = ClientManager::getInstance()->getUser(nick, this);
			} else {
				u  = ni->second;
			}
		}
		j = param.find('$', i);
		if(j == string::npos)
			return;
		string tmpDesc = Util::validateMessage(fromNmdc(param.substr(i, j-i)), true);
		// Look for a tag...
		if(tmpDesc.size() > 0 && tmpDesc[tmpDesc.size()-1] == '>') {
			x = tmpDesc.rfind('<');
			if(x != string::npos) {
				// Hm, we have something...
				u->setTag(tmpDesc.substr(x));
				tmpDesc.erase(x);
			} else {
				u->setTag(Util::emptyString);
			}
		} else {
			u->setTag(Util::emptyString);
		}
		u->setDescription(tmpDesc);
		i = j + 3;
		j = param.find('$', i);
		if(j == string::npos)
			return;
		u->setConnection(fromNmdc(param.substr(i, j-i-1)));
		i = j + 1;
		j = param.find('$', i);
		if(j == string::npos)
			return;
		u->setEmail(Util::validateMessage(fromNmdc(param.substr(i, j-i)), true));
		i = j + 1;
		j = param.find('$', i);
		if(j == string::npos)
			return;
		u->setBytesShared(param.substr(i, j-i));

		Speaker<NmdcHubListener>::fire(NmdcHubListener::MyInfo(), this, u);
	} else if(cmd == "$Quit") {
		if(!param.empty()) {
			User::Ptr u;
			{
				Lock l(cs);
				User::NickIter i = users.find(fromNmdc(param));
				if(i == users.end()) {
					dcdebug("C::onLine Quitting user %s not found\n", param.c_str());
					return;
				}
				
				u = i->second;
				users.erase(i);
			}
			
			Speaker<NmdcHubListener>::fire(NmdcHubListener::Quit(), this, u);
			ClientManager::getInstance()->putUserOffline(u, true);
		}
	} else if(cmd == "$ConnectToMe") {
		if(state != STATE_CONNECTED) {
			return;
		}
		string::size_type i = param.find(' ');
		string::size_type j;
		if( (i == string::npos) || ((i + 1) >= param.size()) ) {
			return;
		}
		i++;
		j = param.find(':', i);
		if(j == string::npos) {
			return;
		}
		string server = fromNmdc(param.substr(i, j-i));
		if(j+1 >= param.size()) {
			return;
		}
		string port = param.substr(j+1);
		ConnectionManager::getInstance()->nmdcConnect(server, (short)Util::toInt(port), getNick()); 
		Speaker<NmdcHubListener>::fire(NmdcHubListener::ConnectToMe(), this, server, (short)Util::toInt(port));
	} else if(cmd == "$RevConnectToMe") {
		if(state != STATE_CONNECTED) {
			return;
		}
		User::Ptr u;
		bool up = false;
		{
			Lock l(cs);
			string::size_type j = param.find(' ');
			if(j == string::npos) {
				return;
			}

			User::NickIter i = users.find(fromNmdc(param.substr(0, j)));
			if(i == users.end()) {
				return;
			}

			u = i->second;
			if(!u->isSet(User::PASSIVE)) {
				u->setFlag(User::PASSIVE);
				up = true;
			}
		}

		if(u) {
			if(SETTING(CONNECTION_TYPE) == SettingsManager::CONNECTION_ACTIVE) {