protected virtual void MakeConnection()
{
if (_socks != null)
{
IPAddressSet a = null;
try
{
a = new IPAddressSet(IPAddress.Parse(_socks.DestName));
}
catch (FormatException)
{
try
{
a = new IPAddressSet(_socks.DestName);
}
catch (Exception)
{
}
}
if (a != null && !SocksApplicapable(_socks.ExcludingNetworks, a))
{
_addressSet = a;
_host = _socks.DestName;
_port = _socks.DestPort;
_socks = null;
}
}
string dest = _socks == null ? _host : _socks.ServerName;
int port = _socks == null ? _port : _socks.ServerPort;
string msg = _socks == null?GetHostDescription() : "SOCKS Server";
if (_addressSet == null)
{
try
{
_addressSet = new IPAddressSet(IPAddress.Parse(dest));
}
catch (FormatException)
{
_errorMessage = String.Format("The {0} {1} was not found.", msg, dest);
_addressSet = new IPAddressSet(dest);
}
}
_errorMessage = String.Format("Failed to connect {0} {1}. Please check the address and the port.", msg, dest);
_socket = NetUtil.ConnectTCPSocket(_addressSet, port);
_connectedAddress = ((IPEndPoint)_socket.RemoteEndPoint).Address;
if (_socks != null)
{
_errorMessage = "An error occurred while SOCKS negotiation.";
_socks.Connect(_socket);
_host = _socks.DestName;
_port = _socks.DestPort;
}
_tcpConnected = true;
}
public static Socket ConnectTCPSocket(IPAddressSet addr, int port)
{
IPAddress primary = addr.Primary;
if (primary == null)
{
return(null);
}
Socket s = new Socket(primary.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
try {
s.Connect(new IPEndPoint(primary, port));
return(s);
}
catch (Exception ex) {
IPAddress secondary = addr.Secondary;
if (secondary == null)
{
throw ex;
}
s = new Socket(secondary.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
s.Connect(new IPEndPoint(secondary, port));
return(s);
}
}
protected virtual void MakeConnection()
{
//まずSOCKSを使うべきかどうかを判定する
if (_socks != null)
{
IPAddressSet a = null;
try {
a = new IPAddressSet(IPAddress.Parse(_socks.DestName));
}
catch (FormatException) {
try {
a = new IPAddressSet(_socks.DestName);
}
catch (Exception) { //ここで名前解決できずとも、SOCKSサーバが解決できるかもしれないのでエラーにはしない
}
}
if (a != null && !SocksApplicapable(_socks.ExcludingNetworks, a)) //SOCKSを使わないことが確定
{
_addressSet = a;
_host = _socks.DestName;
_port = _socks.DestPort;
_socks = null;
}
}
string dest = _socks == null? _host : _socks.ServerName;
int port = _socks == null? _port : _socks.ServerPort;
string msg = _socks == null?GetHostDescription() : "SOCKS Server";
if (_addressSet == null)
{
try {
_addressSet = new IPAddressSet(IPAddress.Parse(dest)); //最初からIPアドレス形式のときは手で変換。そうでないとDNSの逆引きをしてタイムアウト、とかややこしいことが起こる
}
catch (FormatException) {
_errorMessage = String.Format("The {0} {1} was not found.", msg, dest);
_addressSet = new IPAddressSet(dest);
}
}
_errorMessage = String.Format("Failed to connect {0} {1}. Please check the address and the port.", msg, dest);
_socket = NetUtil.ConnectTCPSocket(_addressSet, port);
_connectedAddress = ((IPEndPoint)_socket.RemoteEndPoint).Address;
if (_socks != null)
{
_errorMessage = "An error occurred while SOCKS negotiation.";
_socks.Connect(_socket);
_host = _socks.DestName;
_port = _socks.DestPort;
}
_tcpConnected = true;
}
private void Run()
{
_tcpConnected = false;
_ignoreTimeout = false;
_succeeded = false;
try
{
_addressSet = null;
_errorMessage = null;
MakeConnection();
_errorMessage = null;
Negotiate();
_succeeded = true;
}
catch (Exception ex)
{
if (_errorMessage == null)
{
_errorMessage = ex.Message;
}
else
{
_errorMessage += ex.Message;
}
}
finally
{
if (_async)
{
ExitProcess();
}
else
{
_event.Set();
_event.Close();
}
if (_tcpConnected && !_interrupted && _errorMessage != null)
{
try
{
_socket.Close();
}
catch (Exception)
{
}
}
}
}
public static Socket ConnectTCPSocket(IPAddressSet addr, int port)
{
IPAddress primary = addr.Primary;
if(primary==null) return null;
Socket s = new Socket(primary.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
try {
s.Connect(new IPEndPoint(primary, port));
return s;
}
catch(Exception ex) {
IPAddress secondary = addr.Secondary;
if(secondary==null) throw ex;
s = new Socket(secondary.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
s.Connect(new IPEndPoint(secondary, port));
return s;
}
}
private static bool SocksApplicapable(string nss, IPAddressSet address)
{
foreach (string netaddress in nss.Split(';'))
{
if (netaddress.Length == 0)
{
continue;
}
if (!NetUtil.IsNetworkAddress(netaddress))
{
throw new FormatException(String.Format("{0} is not suitable as a network address.", netaddress));
}
if (NetUtil.NetAddressIncludesIPAddress(netaddress, address.Primary))
{
return(false);
}
else if (address.Secondary != null && NetUtil.NetAddressIncludesIPAddress(netaddress, address.Secondary))
{
return(false);
}
}
return(true);
}
private void Run()
{
_tcpConnected = false;
_ignoreTimeout = false;
_succeeded = false;
try {
_addressSet = null;
_errorMessage = null;
MakeConnection();
_errorMessage = null;
Negotiate();
_succeeded = true;
}
catch(Exception ex) {
if(_errorMessage==null)
_errorMessage = ex.Message;
else
_errorMessage += ex.Message;
}
finally {
if(_async) {
ExitProcess();
}
else {
_event.Set();
_event.Close();
}
if(_tcpConnected && !_interrupted && _errorMessage!=null) {
try {
_socket.Close();
}
catch(Exception) { //�����ł����ƕ��邱�Ƃ��o���Ȃ��ꍇ��������
}
}
}
}
private static bool SocksApplicapable(string nss, IPAddressSet address)
{
foreach(string netaddress in nss.Split(';')) {
if(netaddress.Length==0) continue;
if(!NetUtil.IsNetworkAddress(netaddress)) {
throw new FormatException(String.Format("{0} is not suitable as a network address.", netaddress));
}
if(NetUtil.NetAddressIncludesIPAddress(netaddress, address.Primary))
return false;
else if(address.Secondary!=null && NetUtil.NetAddressIncludesIPAddress(netaddress, address.Secondary))
return false;
}
return true;
}
protected virtual void MakeConnection()
{
//�܂�SOCKS��g���ׂ����ǂ����肷��
if(_socks!=null) {
IPAddressSet a = null;
try {
a = new IPAddressSet(IPAddress.Parse(_socks.DestName));
}
catch(FormatException ) {
try {
a = new IPAddressSet(_socks.DestName);
}
catch(Exception) { //�����Ŗ��O����ł����Ƃ�ASOCKS�T�[�o������ł��邩�����Ȃ��̂ŃG���[�ɂ͂��Ȃ�
}
}
if(a!=null && !SocksApplicapable(_socks.ExcludingNetworks, a)) { //SOCKS��g��Ȃ����Ƃ��m��
_addressSet = a;
_host = _socks.DestName;
_port = _socks.DestPort;
_socks = null;
}
}
string dest = _socks==null? _host : _socks.ServerName;
int port = _socks==null? _port : _socks.ServerPort;
string msg = _socks==null? GetHostDescription() : "SOCKS Server";
if(_addressSet==null) {
try {
_addressSet = new IPAddressSet(IPAddress.Parse(dest)); //�ŏ�����IP�A�h���X�`���̂Ƃ��͎�ŕϊ��B�����łȂ���DNS�̋t��������ă^�C���A�E�g�A�Ƃ���₱�������Ƃ��N����
}
catch(FormatException ) {
_errorMessage = String.Format("The {0} {1} was not found.", msg, dest);
_addressSet = new IPAddressSet(dest);
}
}
_errorMessage = String.Format("Failed to connect {0} {1}. Please check the address and the port.", msg, dest);
_socket = NetUtil.ConnectTCPSocket(_addressSet, port);
_connectedAddress = ((IPEndPoint)_socket.RemoteEndPoint).Address;
if(_socks!=null) {
_errorMessage = "An error occurred while SOCKS negotiation.";
_socks.Connect(_socket);
_host = _socks.DestName;
_port = _socks.DestPort;
}
_tcpConnected = true;
}
