internal SmppQuerySmReq(ByteBuilder bb)
{
int startPosition = 0x10;
_Header = new SmppHeader(bb);
_Body = new BodyPdu(bb, ref startPosition);
}
public override void WriteOffsets(ByteBuilder bb)
{
foreach (ExportRef exp in Exports)
{
exp?.WriteOffset(bb);
}
}
private void buttonUpdateTable_Click(object sender, EventArgs e)
{
m_aChannel = new byte[this.listViewEx1.Items.Count];
for (int i = 0; i < this.listViewEx1.Items.Count; i++)
{
try
{
m_aChannel[i] = byte.Parse(this.listViewEx1.Items[i].SubItems[1].Text);
}
catch
{
}
}
ByteBuilder bb = new ByteBuilder();
bb.Clear();
bb.Append((byte)this.GetChannelTable().Length);
bb.Append(this.GetChannelTable());
if (!RcpProtocol.Instance.SendBytePkt(RcpProtocol.Instance.BuildCmdPacketByte(RcpProtocol.RCP_MSG_CMD, RcpProtocol.RCP_CMD_SET_HOPPING_TBL, bb.GetByteArray())))
{
}
bb.Clear();
}
/// <summary>
/// Computes the 16-bit checksum of the specified IPv4 packet.
/// </summary>
/// <param name="packet">The packet to compute the checksum for.</param>
/// <param name="withChecksumField">true to include the packet's
/// checksum field in the calculation; otherwise false.</param>
/// <returns>The checksum of the specified IPv4 packet.</returns>
/// <exception cref="ArgumentNullException">Thrown if the packet
/// argument is null.</exception>
public static ushort ComputeChecksum(IpPacket packet,
bool withChecksumField = false)
{
packet.ThrowIfNull("packet");
// The version and IHL fields are 4 bit wide each.
var vi = (byte)(((packet.Ihl & 0x0F) << 4) |
(((int)packet.Version) & 0x0F));
// The flags field is 3 bits and the fragment offset 13 bits wide.
var ffo = (ushort)(((packet.FragmentOffset & 0x1FFF) << 3) |
((int)packet.Flags & 0x07));
var bytes = new ByteBuilder()
.Append(vi)
.Append(packet.Dscp)
.Append(packet.TotalLength)
.Append(packet.Identification)
.Append(ffo)
.Append(packet.TimeToLive)
.Append((byte)packet.Protocol)
.Append(withChecksumField ? packet.Checksum : (ushort)0)
.Append(packet.Source.Bytes)
.Append(packet.Destination.Bytes)
.ToArray();
var sum = 0;
// Treat the header bytes as a sequence of unsigned 16-bit values and
// sum them up.
for (var n = 0; n < bytes.Length; n += 2)
{
sum += BitConverter.ToUInt16(bytes, n);
}
// Use carries to compute the 1's complement sum.
sum = (sum >> 16) + (sum & 0xFFFF);
// Return the inverted 16-bit result.
return((ushort)(~sum));
}
public void WriteOffset(int rel, ByteBuilder bb)
{
IsOffsetWrited = true;
if (Reference != null)
{
TargetOffset = Reference.Address;
}
int val = TargetOffset;
if (Relative)
{
val -= rel;
}
switch (Size)
{
case 1: bb.SetByte(Address, (byte)val); break;
case 2: bb.SetShortBE(Address, (ushort)val); break;
default: throw new NotImplementedException();
}
}
/// <summary>
/// Waits until the connected client sends a SOCKS5 request.
/// </summary>
/// <returns>The SOCKS5 request sent by the client.</returns>
/// <exception cref="Socks5Exception">The data sent by the client
/// is not a valid SOCKS5 request.</exception>
private SocksRequest WaitForRequest()
{
ByteBuilder b = new ByteBuilder();
using (var r = new BinaryReader(stream, Encoding.UTF8, true))
{
byte[] bytes = r.ReadBytes(4);
b.Append(bytes);
ATyp atyp = (ATyp)bytes[3];
switch (atyp)
{
case ATyp.IPv4:
case ATyp.IPv6:
b.Append(r.ReadBytes(atyp == ATyp.IPv4 ? 4 : 16));
break;
case ATyp.Domain:
byte length = r.ReadByte();
b.Append(length).Append(r.ReadBytes(length));
break;
}
b.Append(r.ReadBytes(2));
}
try
{
return(SocksRequest.Deserialize(b.ToArray()));
}
catch (Exception e)
{
throw new Socks5Exception("The request could not be serialized.", e);
}
}
/*登录 */
public void LogIn()
{
if (isInLogIn || isInRegister)
{
return; //若已点击了登陆按钮或注册按钮则不响应
}
StopCoroutine("ResetPrompt");
promptText.text = "";
userNameInput.interactable = false;
passwordInput.interactable = false;
isInLogIn = true;
//test
// LogInSuccess();
ByteBuilder builder = new ByteBuilder();
builder.Add(System.BitConverter.GetBytes(Network.LOGIN));
builder.Add(System.BitConverter.GetBytes(userNameInput.text.Length));
builder.Add(System.BitConverter.GetBytes(passwordInput.text.Length));
builder.Add(System.Text.Encoding.ASCII.GetBytes(userNameInput.text));
builder.Add(System.Text.Encoding.ASCII.GetBytes(passwordInput.text));
Global.network.Send(builder.GetByes());
// Debug.Log("Set");
LogInOutCor = StartCoroutine(LogInTimeout());
}
/// <summary>
/// Computes the server evidence from the given parameters.
/// </summary>
/// <param name="clientPublicKey">The client's ephemeral public key.</param>
/// <param name="clientProof"></param>
/// <param name="sharedKey">The shared context key.</param>
/// <param name="authId">The authorization identity.</param>
/// <param name="options">The raw options string as sent by the
/// client.</param>
/// <param name="sid">The session id sent by the server.</param>
/// <param name="ttl">The time-to-live value for the session id sent
/// by the server.</param>
/// <param name="hashAlgorithm">The message digest algorithm to use for
/// calculating the server proof.</param>
/// <returns>The server proof as an array of bytes.</returns>
public static byte[] ComputeServerProof(Mpi clientPublicKey, byte[] clientProof,
Mpi sharedKey, string authId, string options, string sid, uint ttl,
HashAlgorithm hashAlgorithm)
{
byte[] A = clientPublicKey.ToBytes(), M1 = clientProof,
K = sharedKey.ToBytes(), I = Encoding.UTF8.GetBytes(authId),
o = Encoding.UTF8.GetBytes(options), _sid = Encoding.UTF8.GetBytes(sid);
HashAlgorithm H = hashAlgorithm;
// The proof is calculated as follows:
//
// H( bytes(A)
// | bytes(M1)
// | bytes(K)
// | bytes(H( bytes(I) ))
// | bytes(H( bytes(o) ))
// | bytes(sid)
// | ttl
// )
byte[] seq = new ByteBuilder()
.Append(A)
.Append(M1)
.Append(K)
.Append(H.ComputeHash(I))
.Append(H.ComputeHash(o))
.Append(_sid)
.Append(ttl, true)
.ToArray();
return(H.ComputeHash(seq));
}
/// <summary>
/// Computes the client evidence from the given parameters.
/// </summary>
/// <param name="safePrimeModulus">The safe prime modulus sent by the
/// server.</param>
/// <param name="generator">The generator sent by the server.</param>
/// <param name="username">The username to authenticate with.</param>
/// <param name="salt">The client's password salt.</param>
/// <param name="clientPublicKey">The client's ephemeral public key.</param>
/// <param name="serverPublicKey">The server's ephemeral public key.</param>
/// <param name="sharedKey">The shared context key.</param>
/// <param name="authId">The authorization identity.</param>
/// <param name="options">The raw options string as received from the
/// server.</param>
/// <param name="hashAlgorithm">The message digest algorithm to use for
/// calculating the client proof.</param>
/// <returns>The client proof as an array of bytes.</returns>
public static byte[] ComputeClientProof(Mpi safePrimeModulus, Mpi generator,
string username, byte[] salt, Mpi clientPublicKey, Mpi serverPublicKey,
Mpi sharedKey, string authId, string options, HashAlgorithm hashAlgorithm)
{
byte[] N = safePrimeModulus.ToBytes(), g = generator.ToBytes(),
U = Encoding.UTF8.GetBytes(username), s = salt,
A = clientPublicKey.ToBytes(), B = serverPublicKey.ToBytes(),
K = sharedKey.ToBytes(), I = Encoding.UTF8.GetBytes(authId),
L = Encoding.UTF8.GetBytes(options);
HashAlgorithm H = hashAlgorithm;
// The proof is calculated as follows:
//
// H( bytes(H( bytes(N) )) ^ bytes( H( bytes(g) ))
// | bytes(H( bytes(U) ))
// | bytes(s)
// | bytes(A)
// | bytes(B)
// | bytes(K)
// | bytes(H( bytes(I) ))
// | bytes(H( bytes(L) ))
// )
byte[] seq = new ByteBuilder()
.Append(Xor(H.ComputeHash(N), H.ComputeHash(g)))
.Append(H.ComputeHash(U))
.Append(s)
.Append(A)
.Append(B)
.Append(K)
.Append(H.ComputeHash(I))
.Append(H.ComputeHash(L))
.ToArray();
return(H.ComputeHash(seq));
}
private static void ReadMessage(ClientInfo ci, uint code, byte[] buf, int len)
{
Console.WriteLine("Message, code " + code.ToString("X8") + ", content:");
byte[] ba = new byte[len];
Array.Copy(buf, ba, len);
Console.WriteLine(" " + ByteBuilder.FormatParameter(new Parameter(ba, ParameterType.Byte)));
}
public override void Write(ByteBuilder bb)
{
Address = (ushort)bb.Position;
bb.AddByte(Type);
foreach (object arg in Arguments)
{
switch (arg)
{
case byte b:
bb.AddByte(b);
break;
case ushort s:
bb.AddShortBE(s);
break;
case RefToElement r:
r.Write(bb);
break;
case LinkToExport l:
l.Write(bb);
break;
default:
throw new NotImplementedException();
}
}
}
/// <summary>
/// 转换为ByteRange
/// </summary>
/// <exception cref="ProtocolException"></exception>
/// <returns></returns>
public ByteRange ToByteRange()
{
var apiNameBytes = Encoding.UTF8.GetBytes(this.ApiName);
var headLength = apiNameBytes.Length + 15;
this.TotalBytes = this.Body == null ? headLength : headLength + this.Body.Length;
const int packegMaxSize = 10 * 1204 * 1024; // 10M
if (this.TotalBytes > packegMaxSize)
{
throw new ProtocolException("数据包太大");
}
this.ApiNameLength = (byte)apiNameBytes.Length;
var builder = new ByteBuilder(Endians.Big);
builder.Add(this.TotalBytes);
builder.Add(this.ApiNameLength);
builder.Add(apiNameBytes);
builder.Add(this.Id);
builder.Add(this.IsFromClient);
builder.Add(this.IsException);
builder.Add(this.Body);
return(builder.ToByteRange());
}
internal BodyPdu(ByteBuilder bb, ref int StartPosition)
{
_ServiceType = SmppServiceType.Default;
_SourceAddress = string.Empty;
_DestinationAddress = string.Empty;
_EsmClass = new BitBuilder();
_RegisteredDelivery = new BitBuilder();
_ShortMessage = new SmppString();
_ServiceType =
SmppServiceType.FromValue(
SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0)));
_SourceAddressTon = bb.ReadByte(ref StartPosition);
_SourceAddressNpi = bb.ReadByte(ref StartPosition);
_SourceAddress = SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0));
_DestinationAddressTon = bb.ReadByte(ref StartPosition);
_DestinationAddressNpi = bb.ReadByte(ref StartPosition);
_DestinationAddress = SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0));
_EsmClass.Value = bb.ReadByte(ref StartPosition);
_ProtocolId = bb.ReadByte(ref StartPosition);
_PriorityFlag = bb.ReadByte(ref StartPosition);
_ScheduleDeliveryTime =
new SmppDateTime(SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0)));
_ValidityPeriod =
new SmppDateTime(SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0)));
_RegisteredDelivery.Value = bb.ReadByte(ref StartPosition);
_ReplaceIfPresent = bb.ReadByte(ref StartPosition);
_ShortMessage.DataCoding = SmppDataCoding.FromValue(bb.ReadByte(ref StartPosition));
_SmDefaultMessageId = bb.ReadByte(ref StartPosition);
byte length = bb.ReadByte(ref StartPosition);
_ShortMessage.Value = bb.ReadBytes(ref StartPosition, length);
}
public override void SetTranslate(string[] strings)
{
var oldStrings = GetStrings(true);
if (strings.Length != oldStrings.Length)
{
throw new Exception("Line count mismatch");
}
ByteBuilder bb = new ByteBuilder();
for (int r = 0; r < strings.Length; r++)
{
var tr = strings[r];
if (tr == null)
{
tr = oldStrings[r];
}
var bytes = GameEncoding.GetBytes(tr);
bb.AddBytes(bytes);
bb.AddByte(0);
}
SaveTranslate(bb.GetArray());
}
/// <summary>
/// 当接收到远程端的数据时，将触发此方法
/// 此方法用于处理和分析收到的数据
/// 如果得到一个数据包，将触发OnRecvComplete方法
/// [注]这里只需处理一个数据包的流程
/// </summary>
/// <param name="client">客户端</param>
/// <param name="recvBuilder">接收到的历史数据</param>
/// <returns>如果不够一个数据包，则请返回null</returns>
protected override Hybi13Packet OnReceive(SocketAsync <Hybi13Packet> client, ByteBuilder recvBuilder)
{
if (client.IsConnected == false)
{
return(null);
}
// 获取处理接收的数据的容器
var resultBuilder = client.TagBag.ResultBuilder as ByteBuilder;
// 说明不是第一次握手请求
if (resultBuilder != null)
{
return(RequestPacket.GetPacket(recvBuilder, resultBuilder));
}
// 设置ResultBuilder
client.TagBag.ResultBuilder = new ByteBuilder();
// 处理握手请求
var request = HandshakeRequest.Parse(recvBuilder.ToArrayThenClear());
if (request == null || this.CheckHandshake(client, request) == false)
{
this.CloseClient(client, CloseStatus.ProtocolError);
}
else
{
var packet = new ResponsePacket();
packet.SetHandshake(request.ToHandshake());
client.Send(packet);
}
return(null);
}
internal SmppQuerySmRes(ByteBuilder bb)
{
_Header = new SmppHeader(bb);
int lastBytePosition = 0x10;
_Body = new BodyPdu(bb, ref lastBytePosition);
}
public override void WriteOffsets(ByteBuilder bb)
{
foreach (Code c in Operators)
{
c.WriteOffset(bb);
}
}
// Note: if you use this, make sure to set the builder to have enough bytes
// Returns: offset to the data (end of headers), UInt32.MaxValue if end of headers not found yet
public static UInt32 ReadHttpHeaders(Socket socket, ByteBuilder builder)
{
Int32 bytesReceived = socket.Receive(builder.bytes, (int)builder.contentLength,
(int)(builder.bytes.Length - builder.contentLength), 0);
if (bytesReceived <= 0)
{
throw new FormatException(String.Format("socket closed before all HTTP headers were received ({0} bytes received)'", bytesReceived));
}
UInt32 checkOffset = builder.contentLength;
builder.contentLength += (UInt32)bytesReceived;
// Search for the ending \r\n\r\n
Byte[] checkBuffer = builder.bytes;
if (checkOffset >= 3)
{
checkOffset -= 3; // Reverse 3 chars in case the last request had the partial end of double newline
}
for (; checkOffset + 3 < builder.contentLength; checkOffset++)
{
if (checkBuffer[checkOffset] == (Byte)'\r' &&
checkBuffer[checkOffset + 1] == (Byte)'\n' &&
checkBuffer[checkOffset + 2] == (Byte)'\r' &&
checkBuffer[checkOffset + 3] == (Byte)'\n')
{
return(checkOffset + 4);
}
}
return(UInt32.MaxValue);
}
public override void Write(ByteBuilder bb)
{
foreach (var r in Refs)
{
bb.AddShortBE(r);
}
}
private void SetFrequncyHopppingChannelTable(byte[] data)
{
int size = data[5];
if (size > data.Length - 9)
{
return;
}
ByteBuilder ba = new ByteBuilder();
for (int i = 6; i < size + 6; i++)
{
ba.Append(data[i]);
}
formChannelTable.SetChannel(ba.GetByteArray());
if (formChannelTable.isDisplayed)
{
}
else
{
formChannelTable.ShowDialog();
}
}
public byte[] GetBytes()
{
ByteBuilder bb = new ByteBuilder();
WriteExt(bb);
return(bb.GetArray());
}
public virtual void Write(ByteBuilder bb)
{
if (Args != null)
{
bb.AddBytes(Args);
}
}
public override void WriteOffsets(ByteBuilder bb)
{
foreach (StringConst str in Strings)
{
str.WriteOffset(bb);
}
}
public override void Write(ByteBuilder bb)
{
bb.AddShortBE(0x1234);
bb.AddShortBE(0);
bb.AddShortBE(funcList);
bb.AddShortBE((ushort)Selectors.Length);
for (int i = 0; i < Selectors.Length; i++)
{
Selectors[i].Write(bb);
}
if (Type == SectionType.Class)
{
foreach (ushort vs in varselectors)
{
bb.AddShortBE(vs);
}
}
bb.AddShortBE((ushort)FuncNames.Length);
foreach (ushort val in FuncNames)
{
bb.AddShortBE(val);
}
bb.AddShortBE(0);
foreach (RefToElement r in FuncCode)
{
r.Write(bb);
}
}
internal SmppHeader(ByteBuilder bb)
{
_CommandLength = SmppConverter.FromByteArrayToInt32(bb.ToArray(0, 4));
_CommandId = SmppConverter.FromByteArrayToInt32(bb.ToArray(4, 4));
_CommandStatus = SmppConverter.FromByteArrayToInt32(bb.ToArray(8, 4));
_SequenceNumber = SmppConverter.FromByteArrayToInt32(bb.ToArray(12, 4));
}
/// <summary>
/// Performs the specified SOCKS5 request.
/// </summary>
/// <param name="request">The SOCKS5 request to issue to the server.</param>
/// <returns>The SOCKS5 reply sent by the server.</returns>
/// <exception cref="ArgumentNullException">The request parameter is
/// null.</exception>
/// <exception cref="ObjectDisposedException">The object has been
/// disposed.</exception>
/// <exception cref="Socks5Exception">The request could not be performed.
/// Consult the InnerException property of the Socks5Exception to learn
/// the reason.</exception>
public SocksReply Request(SocksRequest request)
{
AssertValid();
try
{
byte[] bytes = request.Serialize();
stream.Write(bytes, 0, bytes.Length);
ByteBuilder b = new ByteBuilder();
using (var r = new BinaryReader(stream, Encoding.UTF8, true))
{
bytes = r.ReadBytes(4);
b.Append(bytes);
ATyp atyp = (ATyp)bytes[3];
switch (atyp)
{
case ATyp.IPv4:
case ATyp.IPv6:
b.Append(r.ReadBytes(atyp == ATyp.IPv4 ? 4 : 16));
break;
case ATyp.Domain:
byte length = r.ReadByte();
b.Append(length).Append(r.ReadBytes(length));
break;
}
b.Append(r.ReadBytes(2));
}
return(SocksReply.Deserialize(b.ToArray()));
}
catch (Exception e)
{
throw new Socks5Exception("The request could not be performed.", e);
}
}
private void fb_param_set(string[] fb_parm)
{
ByteBuilder bb = new ByteBuilder();
byte txLPF;
byte fb_res1;
byte fb_res2;
try
{
txLPF = Convert.ToByte(fb_parm[0]);
fb_res1 = Convert.ToByte(fb_parm[1]);
fb_res2 = Convert.ToByte(fb_parm[2]);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
bb.Append(txLPF);
bb.Append(fb_res1);
bb.Append(fb_res2);
if (!RcpProtocol.Instance.SendBytePkt(RcpProtocol.Instance.BuildCmdPacketByte(RcpProtocol.RCP_MSG_CMD, RcpProtocol.RCP_CMD_SET_FB_PARAM, bb.GetByteArray())))
{
}
}
public override void WriteOffsets(ByteBuilder bb)
{
foreach (var r in Refs)
{
r.WriteOffset(bb);
}
}
/// <summary>
/// 解析一个数据包
/// 不足一个封包时返回null
/// </summary>
/// <param name="builder">接收到的历史数据</param>
/// <returns></returns>
public static FastPacket GetPacket(ByteBuilder builder)
{
// 包头长度
const int headLength = 12;
// 不会少于12
if (builder.Length < headLength)
{
return(null);
}
// 包长
int totalLength = builder.ToInt32(0, Endians.Big);
// 包长要小于等于数据长度
if (totalLength > builder.Length || totalLength < headLength)
{
return(null);
}
// cmd
int cmd = builder.ToInt32(4, Endians.Big);
// 哈希值
int hashCode = builder.ToInt32(8, Endians.Big);
// 实体数据
byte[] body = builder.ToArray(12, totalLength - headLength);
// 清空本条数据
builder.Remove(totalLength);
return(new FastPacket(cmd, hashCode, body));
}
public override void WriteOffsets(ByteBuilder bb)
{
foreach (var v in Vars)
{
(v as RefToElement)?.WriteOffset(bb);
}
}
/// <summary>
/// Serializes the instance into an array of bytes.
/// </summary>
/// <returns>An array of bytes representing the instance of the
/// ClientGreeting class.</returns>
public byte[] Serialize() {
ByteBuilder b = new ByteBuilder()
.Append(version)
.Append((byte) methods.Count);
foreach (AuthMethod m in Methods)
b.Append((byte) m);
return b.ToArray();
}
public static byte[] ComputeClientProof(Mpi safePrimeModulus, Mpi generator, string username, byte[] salt, Mpi clientPublicKey, Mpi serverPublicKey, Mpi sharedKey, string authId, string options, HashAlgorithm hashAlgorithm)
{
byte[] n = safePrimeModulus.ToBytes(),
g = generator.ToBytes(),
u = Encoding.UTF8.GetBytes(username), s = salt,
a = clientPublicKey.ToBytes(), b = serverPublicKey.ToBytes(),
k = sharedKey.ToBytes(), i = Encoding.UTF8.GetBytes(authId),
l = Encoding.UTF8.GetBytes(options);
HashAlgorithm h = hashAlgorithm;
byte[] seq = new ByteBuilder()
.Append(Xor(h.ComputeHash(n), h.ComputeHash(g)))
.Append(h.ComputeHash(u))
.Append(s)
.Append(a)
.Append(b)
.Append(k)
.Append(h.ComputeHash(i))
.Append(h.ComputeHash(l))
.ToArray();
return h.ComputeHash(seq);
}
/// <summary>
/// 转换为ByteRange
/// </summary>
/// <returns></returns>
public override ByteRange ToByteRange()
{
var builder = new ByteBuilder(Endians.Big);
builder.Add((byte)((byte)this.Frame + 128));
if (this.Content.Length > UInt16.MaxValue)
{
builder.Add((byte)127);
builder.Add((ulong)this.Content.Length);
}
else if (this.Content.Length > 125)
{
builder.Add((byte)126);
builder.Add((ushort)this.Content.Length);
}
else
{
builder.Add((byte)this.Content.Length);
}
builder.Add(this.Content);
return builder.ToByteRange();
}
public static byte[] ComputeServerProof(Mpi clientPublicKey, byte[] clientProof, Mpi sharedKey, string authId, string options, string sid, uint ttl, HashAlgorithm hashAlgorithm)
{
byte[] a =
clientPublicKey.ToBytes(),
m1 = clientProof,
k = sharedKey.ToBytes(),
i = Encoding.UTF8.GetBytes(authId),
o = Encoding.UTF8.GetBytes(options),
sid_ = Encoding.UTF8.GetBytes(sid);
HashAlgorithm h = hashAlgorithm;
byte[] seq = new ByteBuilder()
.Append(a)
.Append(m1)
.Append(k)
.Append(h.ComputeHash(i))
.Append(h.ComputeHash(o))
.Append(sid_)
.Append(ttl, true)
.ToArray();
return h.ComputeHash(seq);
}
/// <summary>
/// 将参数序列化并写入为Body
/// </summary>
/// <param name="serializer">序列化工具</param>
/// <param name="parameters">参数</param>
/// <exception cref="SerializerException"></exception>
public void SetBodyParameters(ISerializer serializer, params object[] parameters)
{
if (parameters == null || parameters.Length == 0)
{
return;
}
var builder = new ByteBuilder(Endians.Big);
foreach (var item in parameters)
{
// 序列化参数为二进制内容
var paramBytes = serializer.Serialize(item);
// 添加参数内容长度
builder.Add(paramBytes == null ? 0 : paramBytes.Length);
// 添加参数内容
builder.Add(paramBytes);
}
this.Body = builder.ToArray();
}
/// <summary>
/// 转换为ByteRange
/// </summary>
/// <exception cref="ProtocolException"></exception>
/// <returns></returns>
public ByteRange ToByteRange()
{
var apiNameBytes = Encoding.UTF8.GetBytes(this.ApiName);
var headLength = apiNameBytes.Length + 15;
this.TotalBytes = this.Body == null ? headLength : headLength + this.Body.Length;
const int packegMaxSize = 10 * 1204 * 1024; // 10M
if (this.TotalBytes > packegMaxSize)
{
throw new ProtocolException();
}
this.ApiNameLength = (byte)apiNameBytes.Length;
var builder = new ByteBuilder(Endians.Big);
builder.Add(this.TotalBytes);
builder.Add(this.ApiNameLength);
builder.Add(apiNameBytes);
builder.Add(this.Id);
builder.Add(this.IsFromClient);
builder.Add(this.IsException);
builder.Add(this.Body);
return builder.ToByteRange();
}
/// <summary>
/// 输出文本内容
/// </summary>
/// <param name="content">内容</param>
public bool Write(string content)
{
if (content == null)
{
content = string.Empty;
}
var buffer = new ByteBuilder(Endians.Little);
var contentBytes = this.Charset.GetBytes(content);
if (this.wroteHeader == false)
{
this.wroteHeader = true;
var headerByes = this.GetHeaderBytes(contentBytes.Length);
buffer.Add(headerByes);
}
buffer.Add(contentBytes);
return this.TrySend(buffer.ToByteRange());
}
/// <summary>
/// Converts the notification information into a packet of data to be sent
/// to the Growl receiving application.
/// </summary>
/// <returns>byte array</returns>
private byte[] PrepareData()
{
int flags = ConvertPriorityToFlag(this.priority);
if (this.sticky) flags = flags | 1;
ByteBuilder bb = new ByteBuilder();
bb.Append((byte)this.protocolVersion);
bb.Append((byte)this.packetType);
bb.Append((short)flags);
bb.Append(ByteBuilder.GetStringLengthAsShort(this.notificationType.Name));
bb.Append(ByteBuilder.GetStringLengthAsShort(this.title));
bb.Append(ByteBuilder.GetStringLengthAsShort(this.description));
bb.Append(ByteBuilder.GetStringLengthAsShort(this.applicationName));
bb.Append(this.notificationType.Name);
bb.Append(this.title);
bb.Append(this.description);
bb.Append(this.applicationName);
// handle the password
ByteBuilder pb = new ByteBuilder();
pb.Append(this.password);
ByteBuilder bpb = new ByteBuilder();
bpb.Append(bb.GetBytes());
bpb.Append(pb.GetBytes());
byte[] checksum = Cryptography.ComputeHash(bpb.GetBytes(), Cryptography.HashAlgorithmType.MD5);
ByteBuilder fb = new ByteBuilder();
fb.Append(bb.GetBytes());
fb.Append(checksum);
byte[] data = fb.GetBytes();
return data;
}
/// <summary>
/// Performs the initial greeting.
/// </summary>
/// <exception cref="Socks5Exception">The client sent invalid data, or
/// requires authentication.</exception>
/// <exception cref="IOException">The stream could not be read, or the
/// operation timed out.</exception>
void PerformGreeting() {
ByteBuilder b = new ByteBuilder();
using (var r = new BinaryReader(stream, Encoding.UTF8, true)) {
byte[] bytes = r.ReadBytes(2);
b.Append(bytes);
// The number of method-bytes following is contained in the second byte.
b.Append(r.ReadBytes(bytes[1]));
}
ClientGreeting greeting = ClientGreeting.Deserialize(b.ToArray());
// We only accept an authentication method of 'none'.
if (!greeting.Methods.Contains(AuthMethod.None)) {
Dispose();
throw new Socks5Exception("Client requires authentication.");
}
// Send back our greeting response.
var response = new ServerGreeting(AuthMethod.None).Serialize();
stream.Write(response, 0, response.Length);
}
/// <summary>
/// Waits until the connected client sends a SOCKS5 request.
/// </summary>
/// <returns>The SOCKS5 request sent by the client.</returns>
/// <exception cref="Socks5Exception">The data sent by the client
/// is not a valid SOCKS5 request.</exception>
SocksRequest WaitForRequest() {
ByteBuilder b = new ByteBuilder();
using (var r = new BinaryReader(stream, Encoding.UTF8, true)) {
byte[] bytes = r.ReadBytes(4);
b.Append(bytes);
ATyp atyp = (ATyp) bytes[3];
switch (atyp) {
case ATyp.IPv4:
case ATyp.IPv6:
b.Append(r.ReadBytes(atyp == ATyp.IPv4 ? 4 : 16));
break;
case ATyp.Domain:
byte length = r.ReadByte();
b.Append(length).Append(r.ReadBytes(length));
break;
}
b.Append(r.ReadBytes(2));
}
try {
return SocksRequest.Deserialize(b.ToArray());
} catch (Exception e) {
throw new Socks5Exception("The request could not be serialized.", e);
}
}
private static byte[] LMv2Response(byte[] hash, byte[] clientData, byte[] challenge)
{
byte[] data = new ByteBuilder()
.Append(challenge)
.Append(clientData)
.ToArray();
using (var hmac = new HMACMD5(hash))
{
return new ByteBuilder()
.Append(hmac.ComputeHash(data))
.Append(clientData)
.ToArray();
}
}
private static object getRealValue(IDataReader datareader, int ordinal, Type t)
{
if (t == typeof(Int16)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetInt16(ordinal) : null;
if (t == typeof(Int32)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetInt32(ordinal) : null;
if (t == typeof(Int64)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetInt32(ordinal) : null;
if (t == typeof(Byte[]))
{
if (datareader.IsDBNull(ordinal)) return null;
int bufferSize = 1024;
int startIndex = 0;
byte[] outbyte = new byte[bufferSize];
ByteBuilder bb = new ByteBuilder();
long retval = datareader.GetBytes(ordinal, startIndex, outbyte, 0, bufferSize);
while (retval == bufferSize)
{
bb.Append(outbyte);
startIndex += bufferSize;
retval = datareader.GetBytes(ordinal, startIndex, outbyte, 0, bufferSize);
}
if (retval > 0)
bb.Append(outbyte);
return bb.GetBytes();
}
if (t == typeof(String)) return !datareader.IsDBNull(ordinal) ? datareader.GetString(ordinal) : null;
if (t == typeof(DateTime)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetDateTime(ordinal) : null;
if (t == typeof(Boolean)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetBoolean(ordinal) : null;
if (t == typeof(Double)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetDouble(ordinal) : null;
if (t == typeof(Single)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetFloat(ordinal) : null;
if (t == typeof(Guid)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetGuid(ordinal) : null;
if (t == typeof(Decimal)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetDecimal(ordinal) : null;
if (t == typeof(Byte)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetByte(ordinal) : null;
return null;
}
/// <summary>
/// Performs the specified SOCKS5 request.
/// </summary>
/// <param name="request">The SOCKS5 request to issue to the server.</param>
/// <returns>The SOCKS5 reply sent by the server.</returns>
/// <exception cref="ArgumentNullException">The request parameter is
/// null.</exception>
/// <exception cref="ObjectDisposedException">The object has been
/// disposed.</exception>
/// <exception cref="Socks5Exception">The request could not be performed.
/// Consult the InnerException property of the Socks5Exception to learn
/// the reason.</exception>
public SocksReply Request(SocksRequest request) {
request.ThrowIfNull("request");
AssertValid();
try {
byte[] bytes = request.Serialize();
stream.Write(bytes, 0, bytes.Length);
ByteBuilder b = new ByteBuilder();
using (var r = new BinaryReader(stream, Encoding.UTF8, true)) {
bytes = r.ReadBytes(4);
b.Append(bytes);
ATyp atyp = (ATyp) bytes[3];
switch (atyp) {
case ATyp.IPv4:
case ATyp.IPv6:
b.Append(r.ReadBytes(atyp == ATyp.IPv4 ? 4 : 16));
break;
case ATyp.Domain:
byte length = r.ReadByte();
b.Append(length).Append(r.ReadBytes(length));
break;
}
b.Append(r.ReadBytes(2));
}
return SocksReply.Deserialize(b.ToArray());
} catch (Exception e) {
throw new Socks5Exception("The request could not be performed.", e);
}
}
/// <summary>
/// Computes the client evidence from the given parameters.
/// </summary>
/// <param name="safePrimeModulus">The safe prime modulus sent by the
/// server.</param>
/// <param name="generator">The generator sent by the server.</param>
/// <param name="username">The username to authenticate with.</param>
/// <param name="salt">The client's password salt.</param>
/// <param name="clientPublicKey">The client's ephemeral public key.</param>
/// <param name="serverPublicKey">The server's ephemeral public key.</param>
/// <param name="sharedKey">The shared context key.</param>
/// <param name="authId">The authorization identity.</param>
/// <param name="options">The raw options string as received from the
/// server.</param>
/// <param name="hashAlgorithm">The message digest algorithm to use for
/// calculating the client proof.</param>
/// <returns>The client proof as an array of bytes.</returns>
public static byte[] ComputeClientProof(Mpi safePrimeModulus, Mpi generator,
string username, byte[] salt, Mpi clientPublicKey, Mpi serverPublicKey,
Mpi sharedKey, string authId, string options, HashAlgorithm hashAlgorithm) {
byte[] N = safePrimeModulus.ToBytes(), g = generator.ToBytes(),
U = Encoding.UTF8.GetBytes(username), s = salt,
A = clientPublicKey.ToBytes(), B = serverPublicKey.ToBytes(),
K = sharedKey.ToBytes(), I = Encoding.UTF8.GetBytes(authId),
L = Encoding.UTF8.GetBytes(options);
HashAlgorithm H = hashAlgorithm;
// The proof is calculated as follows:
//
// H( bytes(H( bytes(N) )) ^ bytes( H( bytes(g) ))
// | bytes(H( bytes(U) ))
// | bytes(s)
// | bytes(A)
// | bytes(B)
// | bytes(K)
// | bytes(H( bytes(I) ))
// | bytes(H( bytes(L) ))
// )
byte[] seq = new ByteBuilder()
.Append(Xor(H.ComputeHash(N), H.ComputeHash(g)))
.Append(H.ComputeHash(U))
.Append(s)
.Append(A)
.Append(B)
.Append(K)
.Append(H.ComputeHash(I))
.Append(H.ComputeHash(L))
.ToArray();
return H.ComputeHash(seq);
}
/// <summary>
/// Checks to see if a given packets data matches a password
/// provided by the receiving client and returns the matching password if found.
/// </summary>
/// <param name="bytes">The packets data</param>
/// <param name="passwordManager">The receiving client's list of passwords</param>
/// <param name="passwordRequired">Indicates if the request must supply a valid password</param>
/// <param name="password">Returns the matching password if found; null otherwise</param>
/// <returns><c>true</c> if the password matches, <c>false</c> otherwise</returns>
protected static bool IsPasswordValid(byte[] bytes, PasswordManager passwordManager, bool passwordRequired, out string password)
{
password = null;
byte[] packetWithoutPassword = new byte[bytes.Length - 16];
Array.Copy(bytes, 0, packetWithoutPassword, 0, packetWithoutPassword.Length);
byte[] thatChecksum = new byte[16];
Array.Copy(bytes, bytes.Length - 16, thatChecksum, 0, 16);
string thatChecksumString = Encoding.UTF8.GetString(thatChecksum);
ByteBuilder bpb = new ByteBuilder();
bpb.Append(packetWithoutPassword);
Queue<string> validPasswords = new Queue<string>();
foreach (KeyValuePair<string, Password> item in passwordManager.Passwords)
{
validPasswords.Enqueue(item.Key);
}
// if the request does not require a password, then
// we can also try no (blank) password
if (!passwordRequired) validPasswords.Enqueue(String.Empty);
while(validPasswords.Count > 0)
{
string p = validPasswords.Dequeue();
ByteBuilder pb = new ByteBuilder();
pb.Append(bpb.GetBytes());
pb.Append(p);
byte[] thisChecksum = Cryptography.ComputeHash(pb.GetBytes(), Cryptography.HashAlgorithmType.MD5);
string thisChecksumString = Encoding.UTF8.GetString(thisChecksum);
if (thisChecksumString == thatChecksumString)
{
password = p;
return true;
}
}
return false;
}
/// <summary>
/// Calculates the shared context key K from the given parameters.
/// </summary>
/// <param name="salt">The user's password salt.</param>
/// <param name="username">The username to authenticate with.</param>
/// <param name="password">The password to authenticate with.</param>
/// <param name="clientPublicKey">The client's ephemeral public key.</param>
/// <param name="serverPublicKey">The server's ephemeral public key.</param>
/// <param name="clientPrivateKey">The client's private key.</param>
/// <param name="generator">The generator sent by the server.</param>
/// <param name="safePrimeModulus">The safe prime modulus sent by the
/// server.</param>
/// <param name="hashAlgorithm">The negotiated hash algorithm to use
/// for the calculations.</param>
/// <returns>The shared context key K as a "multi-precision
/// integer".</returns>
/// <remarks>
/// A = Client Public Key
/// B = Server Public Key
/// N = Safe Prime Modulus
/// U = Username
/// p = Password
/// s = User's Password Salt
/// a = Client Private Key
/// g = Generator
/// K = Shared Public Key
/// </remarks>
public static Mpi ComputeSharedKey(byte[] salt, string username,
string password, Mpi clientPublicKey, Mpi serverPublicKey,
Mpi clientPrivateKey, Mpi generator, Mpi safePrimeModulus,
HashAlgorithm hashAlgorithm) {
// u = H(A | B)
byte[] u = hashAlgorithm.ComputeHash(new ByteBuilder()
.Append(clientPublicKey.ToBytes())
.Append(serverPublicKey.ToBytes())
.ToArray());
// x = H(s | H(U | ":" | p))
byte[] up = hashAlgorithm.ComputeHash(
Encoding.UTF8.GetBytes(username + ":" + password)),
sup = new ByteBuilder().Append(salt).Append(up).ToArray(),
x = hashAlgorithm.ComputeHash(sup);
// S = ((B - (3 * g ^ x)) ^ (a + u * x)) % N
Mpi _u = new Mpi(u), _x = new Mpi(x);
ts.TraceInformation("ComputeSharedKey: _u = " + _u.Value.ToString("X"));
ts.TraceInformation("ComputeSharedKey: _x = " + _x.Value.ToString("X"));
// base = B - (3 * (g ^ x))
BigInteger _base = BigInteger.Subtract(serverPublicKey.Value,
BigInteger.Multiply(new BigInteger(3),
BigInteger.ModPow(generator.Value, _x.Value, safePrimeModulus.Value)) %
safePrimeModulus.Value);
if (_base.Sign < 0)
_base = BigInteger.Add(_base, safePrimeModulus.Value);
ts.TraceInformation("ComputeSharedKey: _base = " + _base.ToString("X"));
// Alternative way to calculate base; This is not being used in actual calculations
// but still here to ease debugging.
BigInteger gx = BigInteger.ModPow(generator.Value, _x.Value, safePrimeModulus.Value),
gx3 = BigInteger.Multiply(new BigInteger(3), gx) % safePrimeModulus.Value;
ts.TraceInformation("ComputeSharedKey: gx = " + gx.ToString("X"));
BigInteger @base = BigInteger.Subtract(serverPublicKey.Value, gx3) % safePrimeModulus.Value;
if (@base.Sign < 0)
@base = BigInteger.Add(@base, safePrimeModulus.Value);
ts.TraceInformation("ComputeSharedKey: @base = " + @base.ToString("X"));
// exp = a + u * x
BigInteger exp = BigInteger.Add(clientPrivateKey.Value,
BigInteger.Multiply(_u.Value, _x.Value)),
S = BigInteger.ModPow(_base, exp, safePrimeModulus.Value);
ts.TraceInformation("ComputeSharedKey: exp = " + exp.ToString("X"));
ts.TraceInformation("ComputeSharedKey: S = " + S.ToString("X"));
// K = H(S)
return new Mpi(hashAlgorithm.ComputeHash(new Mpi(S).ToBytes()));
}
public static Mpi ComputeSharedKey(byte[] salt, string username, string password, Mpi clientPublicKey, Mpi serverPublicKey, Mpi clientPrivateKey, Mpi generator, Mpi safePrimeModulus, HashAlgorithm hashAlgorithm)
{
byte[] u = hashAlgorithm.ComputeHash(new ByteBuilder()
.Append(clientPublicKey.ToBytes())
.Append(serverPublicKey.ToBytes())
.ToArray());
byte[] up = hashAlgorithm.ComputeHash(Encoding.UTF8.GetBytes(username + ":" + password)), sup = new ByteBuilder().Append(salt).Append(up).ToArray(), x = hashAlgorithm.ComputeHash(sup);
Mpi u_ = new Mpi(u), x_ = new Mpi(x);
ts.TraceInformation("ComputeSharedKey: _u = " + u_.Value.ToString("X"));
ts.TraceInformation("ComputeSharedKey: _x = " + x_.Value.ToString("X"));
BigInteger base_ = BigInteger.Subtract(serverPublicKey.Value, BigInteger.Multiply(new BigInteger(3), BigInteger.ModPow(generator.Value, x_.Value, safePrimeModulus.Value)) % safePrimeModulus.Value);
if (base_.Sign < 0)
{
base_ = BigInteger.Add(base_, safePrimeModulus.Value);
}
ts.TraceInformation("ComputeSharedKey: _base = " + base_.ToString("X"));
BigInteger gx = BigInteger.ModPow(generator.Value, x_.Value, safePrimeModulus.Value), gx3 = BigInteger.Multiply(new BigInteger(3), gx) % safePrimeModulus.Value;
ts.TraceInformation("ComputeSharedKey: gx = " + gx.ToString("X"));
BigInteger @base = BigInteger.Subtract(serverPublicKey.Value, gx3) % safePrimeModulus.Value;
if (@base.Sign < 0)
{
@base = BigInteger.Add(@base, safePrimeModulus.Value);
}
ts.TraceInformation("ComputeSharedKey: @base = " + @base.ToString("X"));
BigInteger exp = BigInteger.Add(clientPrivateKey.Value, BigInteger.Multiply(u_.Value, x_.Value)),
s = BigInteger.ModPow(base_, exp, safePrimeModulus.Value);
ts.TraceInformation("ComputeSharedKey: exp = " + exp.ToString("X"));
ts.TraceInformation("ComputeSharedKey: S = " + s.ToString("X"));
return new Mpi(hashAlgorithm.ComputeHash(new Mpi(s).ToBytes()));
}
/// <summary>
/// Computes the server evidence from the given parameters.
/// </summary>
/// <param name="clientPublicKey">The client's ephemeral public key.</param>
/// <param name="clientProof"></param>
/// <param name="sharedKey">The shared context key.</param>
/// <param name="authId">The authorization identity.</param>
/// <param name="options">The raw options string as sent by the
/// client.</param>
/// <param name="sid">The session id sent by the server.</param>
/// <param name="ttl">The time-to-live value for the session id sent
/// by the server.</param>
/// <param name="hashAlgorithm">The message digest algorithm to use for
/// calculating the server proof.</param>
/// <returns>The server proof as an array of bytes.</returns>
public static byte[] ComputeServerProof(Mpi clientPublicKey, byte[] clientProof,
Mpi sharedKey, string authId, string options, string sid, uint ttl,
HashAlgorithm hashAlgorithm) {
byte[] A = clientPublicKey.ToBytes(), M1 = clientProof,
K = sharedKey.ToBytes(), I = Encoding.UTF8.GetBytes(authId),
o = Encoding.UTF8.GetBytes(options), _sid = Encoding.UTF8.GetBytes(sid);
HashAlgorithm H = hashAlgorithm;
// The proof is calculated as follows:
//
// H( bytes(A)
// | bytes(M1)
// | bytes(K)
// | bytes(H( bytes(I) ))
// | bytes(H( bytes(o) ))
// | bytes(sid)
// | ttl
// )
byte[] seq = new ByteBuilder()
.Append(A)
.Append(M1)
.Append(K)
.Append(H.ComputeHash(I))
.Append(H.ComputeHash(o))
.Append(_sid)
.Append(ttl, true)
.ToArray();
return H.ComputeHash(seq);
}
/// <summary>
/// Converts the notification information into a packet of data to be sent
/// to the Growl receiving application.
/// </summary>
/// <returns>byte array</returns>
private byte[] PrepareData()
{
ByteBuilder nb = new ByteBuilder();
ByteBuilder db = new ByteBuilder();
int index = 0;
int notificationTypeCount = 0;
int notificationTypeEnabledCount = 0;
foreach (NotificationType notificationType in this.notificationTypes)
{
nb.Append(notificationType.Name.Length);
nb.Append(notificationType.Name);
notificationTypeCount++;
if (notificationType.Enabled)
{
notificationTypeEnabledCount++;
db.Append((byte)index);
}
index++;
}
ByteBuilder bb = new ByteBuilder();
bb.Append((byte)this.protocolVersion);
bb.Append((byte)this.packetType);
bb.Append(ByteBuilder.GetStringLengthAsShort(this.applicationName));
bb.Append((byte)notificationTypeCount);
bb.Append((byte)notificationTypeEnabledCount);
bb.Append(this.applicationName);
bb.Append(nb.GetBytes());
bb.Append(db.GetBytes());
// handle the password
ByteBuilder pb = new ByteBuilder();
pb.Append(this.password);
ByteBuilder bpb = new ByteBuilder();
bpb.Append(bb.GetBytes());
bpb.Append(pb.GetBytes());
byte[] checksum = Cryptography.ComputeHash(bpb.GetBytes(), Cryptography.HashAlgorithmType.MD5);
ByteBuilder fb = new ByteBuilder();
fb.Append(bb.GetBytes());
fb.Append(checksum);
byte[] data = fb.GetBytes();
return data;
}
