public Connection AcceptConnection(out string uri, BandwidthLimit bandwidthLimit)
{
uri = null;
List <IDisposable> garbages = new List <IDisposable>();
try
{
Connection connection = null;
foreach (var type in (new int[] { 0, 1 }).Randomize())
{
if (this.State == ManagerState.Stop)
{
return(null);
}
if (type == 0)
{
lock (this.ThisLock)
{
foreach (var item in _tcpListeners)
{
if (item.Value.Pending())
{
var socket = item.Value.AcceptTcpClient().Client;
garbages.Add(socket);
{
var remoteEndPoint = (IPEndPoint)socket.RemoteEndPoint;
uri = string.Format("tcp:{0}:{1}", remoteEndPoint.Address, remoteEndPoint.Port);
}
if (!this.OnCheckUriEvent(uri))
{
_blockedCount.Increment();
continue;
}
var cap = new SocketCap(socket);
garbages.Add(cap);
connection = new BaseConnection(cap, bandwidthLimit, _maxReceiveCount, _bufferManager);
garbages.Add(connection);
}
}
}
}
else if (type == 1)
{
// Overlay network
var cap = this.OnAcceptCapEvent(out uri);
if (cap == null)
{
continue;
}
garbages.Add(cap);
connection = new BaseConnection(cap, bandwidthLimit, _maxReceiveCount, _bufferManager);
garbages.Add(connection);
}
if (connection != null)
{
break;
}
}
if (connection == null)
{
return(null);
}
var secureConnection = new SecureConnection(SecureConnectionVersion.Version3, SecureConnectionType.Accept, connection, null, _bufferManager);
garbages.Add(secureConnection);
secureConnection.Connect(new TimeSpan(0, 0, 30));
var compressConnection = new CompressConnection(secureConnection, _maxReceiveCount, _bufferManager);
garbages.Add(compressConnection);
compressConnection.Connect(new TimeSpan(0, 0, 10));
return(compressConnection);
}
catch (Exception)
{
foreach (var item in garbages)
{
item.Dispose();
}
}
return(null);
}
public Connection CreateConnection(string uri, BandwidthLimit bandwidthLimit)
{
List <IDisposable> garbages = new List <IDisposable>();
try
{
Connection connection = null;
if (connection == null)
{
// Overlay network
var cap = this.OnCreateCapEvent(uri);
if (cap == null)
{
goto End;
}
garbages.Add(cap);
connection = new BaseConnection(cap, bandwidthLimit, _maxReceiveCount, _bufferManager);
garbages.Add(connection);
End :;
}
if (connection == null)
{
ConnectionFilter connectionFilter = null;
lock (this.ThisLock)
{
foreach (var filter in this.Filters)
{
if (filter.UriCondition.IsMatch(uri))
{
if (filter.ConnectionType != ConnectionType.None)
{
connectionFilter = filter.Clone();
}
break;
}
}
}
if (connectionFilter == null)
{
return(null);
}
string scheme = null;
string host = null;
int port = -1;
{
var match = _regex.Match(uri);
if (match.Success)
{
scheme = match.Groups[1].Value;
host = match.Groups[2].Value;
port = int.Parse(match.Groups[3].Value);
}
else
{
var match2 = _regex2.Match(uri);
if (match2.Success)
{
scheme = match2.Groups[1].Value;
host = match2.Groups[2].Value;
port = 4050;
}
}
}
if (host == null)
{
return(null);
}
IList <KeyValuePair <string, string> > options = null;
if (!string.IsNullOrWhiteSpace(connectionFilter.Option))
{
options = ClientManager.Decode(connectionFilter.Option).OfType <KeyValuePair <string, string> >().ToList();
}
if (connectionFilter.ConnectionType == ConnectionType.Tcp)
{
var ipAddress = ClientManager.GetIpAddress(host);
if (ipAddress == null)
{
return(null);
}
host = ipAddress.ToString();
uri = string.Format("{0}:{1}:{2}", scheme, host, port);
if (!this.OnCheckUriEvent(uri))
{
return(null);
}
#if !DEBUG
// Check
{
Uri url = new Uri(string.Format("{0}://{1}:{2}", scheme, host, port));
if (url.HostNameType == UriHostNameType.IPv4)
{
if (IPAddress.Any.ToString() == ipAddress.ToString() ||
IPAddress.Loopback.ToString() == ipAddress.ToString() ||
IPAddress.Broadcast.ToString() == ipAddress.ToString())
{
return(null);
}
if (CollectionUtilities.Compare(ipAddress.GetAddressBytes(), IPAddress.Parse("10.0.0.0").GetAddressBytes()) >= 0 &&
CollectionUtilities.Compare(ipAddress.GetAddressBytes(), IPAddress.Parse("10.255.255.255").GetAddressBytes()) <= 0)
{
return(null);
}
if (CollectionUtilities.Compare(ipAddress.GetAddressBytes(), IPAddress.Parse("172.16.0.0").GetAddressBytes()) >= 0 &&
CollectionUtilities.Compare(ipAddress.GetAddressBytes(), IPAddress.Parse("172.31.255.255").GetAddressBytes()) <= 0)
{
return(null);
}
if (CollectionUtilities.Compare(ipAddress.GetAddressBytes(), IPAddress.Parse("127.0.0.0").GetAddressBytes()) >= 0 &&
CollectionUtilities.Compare(ipAddress.GetAddressBytes(), IPAddress.Parse("127.255.255.255").GetAddressBytes()) <= 0)
{
return(null);
}
if (CollectionUtilities.Compare(ipAddress.GetAddressBytes(), IPAddress.Parse("192.168.0.0").GetAddressBytes()) >= 0 &&
CollectionUtilities.Compare(ipAddress.GetAddressBytes(), IPAddress.Parse("192.168.255.255").GetAddressBytes()) <= 0)
{
return(null);
}
}
else if (url.HostNameType == UriHostNameType.IPv6)
{
if (IPAddress.IPv6Any.ToString() == ipAddress.ToString() ||
IPAddress.IPv6Loopback.ToString() == ipAddress.ToString() ||
IPAddress.IPv6None.ToString() == ipAddress.ToString())
{
return(null);
}
if (ipAddress.ToString().ToLower().StartsWith("fe80:"))
{
return(null);
}
}
}
#endif
var socket = ClientManager.Connect(new IPEndPoint(ipAddress, port), new TimeSpan(0, 0, 10));
garbages.Add(socket);
var cap = new SocketCap(socket);
garbages.Add(cap);
connection = new BaseConnection(cap, bandwidthLimit, _maxReceiveCount, _bufferManager);
garbages.Add(connection);
}
else
{
if (!this.OnCheckUriEvent(uri))
{
return(null);
}
string proxyScheme = null;
string proxyHost = null;
int proxyPort = -1;
{
var match = _regex.Match(connectionFilter.ProxyUri);
if (match.Success)
{
proxyScheme = match.Groups[1].Value;
proxyHost = match.Groups[2].Value;
proxyPort = int.Parse(match.Groups[3].Value);
}
else
{
var match2 = _regex2.Match(connectionFilter.ProxyUri);
if (match2.Success)
{
proxyScheme = match2.Groups[1].Value;
proxyHost = match2.Groups[2].Value;
if (connectionFilter.ConnectionType == ConnectionType.Socks4Proxy ||
connectionFilter.ConnectionType == ConnectionType.Socks4aProxy ||
connectionFilter.ConnectionType == ConnectionType.Socks5Proxy)
{
proxyPort = 1080;
}
else if (connectionFilter.ConnectionType == ConnectionType.HttpProxy)
{
proxyPort = 80;
}
}
}
}
if (proxyHost == null)
{
return(null);
}
if (connectionFilter.ConnectionType == ConnectionType.Socks4Proxy ||
connectionFilter.ConnectionType == ConnectionType.Socks4aProxy ||
connectionFilter.ConnectionType == ConnectionType.Socks5Proxy ||
connectionFilter.ConnectionType == ConnectionType.HttpProxy)
{
var socket = ClientManager.Connect(new IPEndPoint(ClientManager.GetIpAddress(proxyHost), proxyPort), new TimeSpan(0, 0, 10));
garbages.Add(socket);
ProxyClientBase proxy = null;
if (connectionFilter.ConnectionType == ConnectionType.Socks4Proxy)
{
var user = (options != null) ? options.Where(n => n.Key.ToLower().StartsWith("user")).Select(n => n.Value).FirstOrDefault() : null;
proxy = new Socks4ProxyClient(socket, user, host, port);
}
else if (connectionFilter.ConnectionType == ConnectionType.Socks4aProxy)
{
var user = (options != null) ? options.Where(n => n.Key.ToLower().StartsWith("user")).Select(n => n.Value).FirstOrDefault() : null;
proxy = new Socks4aProxyClient(socket, user, host, port);
}
else if (connectionFilter.ConnectionType == ConnectionType.Socks5Proxy)
{
var user = (options != null) ? options.Where(n => n.Key.ToLower().StartsWith("user")).Select(n => n.Value).FirstOrDefault() : null;
var pass = (options != null) ? options.Where(n => n.Key.ToLower().StartsWith("pass")).Select(n => n.Value).FirstOrDefault() : null;
proxy = new Socks5ProxyClient(socket, user, pass, host, port);
}
else if (connectionFilter.ConnectionType == ConnectionType.HttpProxy)
{
proxy = new HttpProxyClient(socket, host, port);
}
var cap = new SocketCap(proxy.Create(new TimeSpan(0, 0, 30)));
garbages.Add(cap);
connection = new BaseConnection(cap, bandwidthLimit, _maxReceiveCount, _bufferManager);
garbages.Add(connection);
}
}
}
if (connection == null)
{
return(null);
}
var secureConnection = new SecureConnection(SecureConnectionVersion.Version3, SecureConnectionType.Connect, connection, null, _bufferManager);
garbages.Add(secureConnection);
secureConnection.Connect(new TimeSpan(0, 0, 30));
var compressConnection = new CompressConnection(secureConnection, _maxReceiveCount, _bufferManager);
garbages.Add(compressConnection);
compressConnection.Connect(new TimeSpan(0, 0, 10));
return(compressConnection);
}
catch (Exception)
{
foreach (var item in garbages)
{
item.Dispose();
}
}
return(null);
}
public void Test_CompressConnection()
{
TcpListener listener = new TcpListener(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 60000));
listener.Start();
var listenerAcceptSocket = listener.BeginAcceptSocket(null, null);
TcpClient client = new TcpClient();
client.Connect(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 60000));
var server = listener.EndAcceptSocket(listenerAcceptSocket);
listener.Stop();
using (var compressClient = new CompressConnection(new BaseConnection(new SocketCap(client.Client), null, Test_Library_Net_Connection.MaxReceiveCount, _bufferManager), Test_Library_Net_Connection.MaxReceiveCount, _bufferManager))
using (var compressServer = new CompressConnection(new BaseConnection(new SocketCap(server), null, Test_Library_Net_Connection.MaxReceiveCount, _bufferManager), Test_Library_Net_Connection.MaxReceiveCount, _bufferManager))
{
var clientConnectTask = compressClient.ConnectAsync(new TimeSpan(0, 0, 20));
var serverConnectTask = compressServer.ConnectAsync(new TimeSpan(0, 0, 20));
Task.WaitAll(clientConnectTask, serverConnectTask);
using (MemoryStream stream = new MemoryStream())
{
var buffer = new byte[1024 * 8];
_random.NextBytes(buffer);
stream.Write(buffer, 0, buffer.Length);
stream.Seek(0, SeekOrigin.Begin);
var clientSendTask = compressClient.SendAsync(stream, new TimeSpan(0, 0, 20));
var serverReceiveTask = compressServer.ReceiveAsync(new TimeSpan(0, 0, 20));
Task.WaitAll(clientConnectTask, serverReceiveTask);
using (var returnStream = serverReceiveTask.Result)
{
var buff2 = new byte[(int)returnStream.Length];
returnStream.Read(buff2, 0, buff2.Length);
Assert.IsTrue(CollectionUtilities.Equals(buffer, buff2), "CompressConnection #1");
}
}
using (MemoryStream stream = new MemoryStream())
{
var buffer = new byte[1024 * 8];
_random.NextBytes(buffer);
stream.Write(buffer, 0, buffer.Length);
stream.Seek(0, SeekOrigin.Begin);
var serverSendTask = compressServer.SendAsync(stream, new TimeSpan(0, 0, 20));
var clientReceiveTask = compressClient.ReceiveAsync(new TimeSpan(0, 0, 20));
Task.WaitAll(serverSendTask, clientReceiveTask);
using (var returnStream = clientReceiveTask.Result)
{
var buff2 = new byte[(int)returnStream.Length];
returnStream.Read(buff2, 0, buff2.Length);
Assert.IsTrue(CollectionUtilities.Equals(buffer, buff2), "CompressConnection #2");
}
}
}
client.Close();
server.Close();
}
