mirror of
https://github.com/RaySollium99/MSNPSharp.git
synced 2025-09-05 14:27:45 -04:00
Add the files
This commit is contained in:
iPedroLB
parent
f52694709e
commit
50aabc8afc
312 changed files with 95444 additions and 0 deletions
206
ProxyServer/Client.cs
Normal file
206
ProxyServer/Client.cs
Normal file
|
|
@ -0,0 +1,206 @@
|
|||
/*
|
||||
Copyright © 2002, The KPD-Team
|
||||
All rights reserved.
|
||||
http://www.mentalis.org/
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions
|
||||
are met:
|
||||
|
||||
- Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
- Neither the name of the KPD-Team, nor the names of its contributors
|
||||
may be used to endorse or promote products derived from this
|
||||
software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
||||
THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||||
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
||||
OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
using System;
|
||||
using System.Net;
|
||||
using System.Net.Sockets;
|
||||
|
||||
namespace Org.Mentalis.Proxy {
|
||||
|
||||
/// <summary>References the callback method to be called when the <c>Client</c> object disconnects from the local client and the remote server.</summary>
|
||||
/// <param name="client">The <c>Client</c> that has closed its connections.</param>
|
||||
public delegate void DestroyDelegate(Client client);
|
||||
|
||||
///<summary>Specifies the basic methods and properties of a <c>Client</c> object. This is an abstract class and must be inherited.</summary>
|
||||
///<remarks>The Client class provides an abstract base class that represents a connection to a local client and a remote server. Descendant classes further specify the protocol that is used between those two connections.</remarks>
|
||||
public abstract class Client : IDisposable {
|
||||
///<summary>Initializes a new instance of the Client class.</summary>
|
||||
///<param name="ClientSocket">The <see cref ="Socket">Socket</see> connection between this proxy server and the local client.</param>
|
||||
///<param name="Destroyer">The callback method to be called when this Client object disconnects from the local client and the remote server.</param>
|
||||
public Client(Socket ClientSocket, DestroyDelegate Destroyer) {
|
||||
this.ClientSocket = ClientSocket;
|
||||
this.Destroyer = Destroyer;
|
||||
}
|
||||
///<summary>Initializes a new instance of the Client object.</summary>
|
||||
///<remarks>Both the ClientSocket property and the DestroyDelegate are initialized to null.</remarks>
|
||||
public Client() {
|
||||
this.ClientSocket = null;
|
||||
this.Destroyer = null;
|
||||
}
|
||||
///<summary>Gets or sets the Socket connection between the proxy server and the local client.</summary>
|
||||
///<value>A Socket instance defining the connection between the proxy server and the local client.</value>
|
||||
///<seealso cref ="DestinationSocket"/>
|
||||
internal Socket ClientSocket {
|
||||
get {
|
||||
return m_ClientSocket;
|
||||
}
|
||||
set {
|
||||
if (m_ClientSocket != null)
|
||||
m_ClientSocket.Close();
|
||||
m_ClientSocket = value;
|
||||
}
|
||||
}
|
||||
///<summary>Gets or sets the Socket connection between the proxy server and the remote host.</summary>
|
||||
///<value>A Socket instance defining the connection between the proxy server and the remote host.</value>
|
||||
///<seealso cref ="ClientSocket"/>
|
||||
internal Socket DestinationSocket {
|
||||
get {
|
||||
return m_DestinationSocket;
|
||||
}
|
||||
set {
|
||||
if (m_DestinationSocket != null)
|
||||
m_DestinationSocket.Close();
|
||||
m_DestinationSocket = value;
|
||||
}
|
||||
}
|
||||
///<summary>Gets the buffer to store all the incoming data from the local client.</summary>
|
||||
///<value>An array of bytes that can be used to store all the incoming data from the local client.</value>
|
||||
///<seealso cref ="RemoteBuffer"/>
|
||||
protected byte[] Buffer {
|
||||
get {
|
||||
return m_Buffer;
|
||||
}
|
||||
}
|
||||
///<summary>Gets the buffer to store all the incoming data from the remote host.</summary>
|
||||
///<value>An array of bytes that can be used to store all the incoming data from the remote host.</value>
|
||||
///<seealso cref ="Buffer"/>
|
||||
protected byte[] RemoteBuffer {
|
||||
get {
|
||||
return m_RemoteBuffer;
|
||||
}
|
||||
}
|
||||
///<summary>Disposes of the resources (other than memory) used by the Client.</summary>
|
||||
///<remarks>Closes the connections with the local client and the remote host. Once <c>Dispose</c> has been called, this object should not be used anymore.</remarks>
|
||||
///<seealso cref ="System.IDisposable"/>
|
||||
public void Dispose() {
|
||||
try {
|
||||
ClientSocket.Shutdown(SocketShutdown.Both);
|
||||
} catch {}
|
||||
try {
|
||||
DestinationSocket.Shutdown(SocketShutdown.Both);
|
||||
} catch {}
|
||||
//Close the sockets
|
||||
if (ClientSocket != null)
|
||||
ClientSocket.Close();
|
||||
if (DestinationSocket != null)
|
||||
DestinationSocket.Close();
|
||||
//Clean up
|
||||
ClientSocket = null;
|
||||
DestinationSocket = null;
|
||||
if (Destroyer != null)
|
||||
Destroyer(this);
|
||||
}
|
||||
///<summary>Returns text information about this Client object.</summary>
|
||||
///<returns>A string representing this Client object.</returns>
|
||||
public override string ToString() {
|
||||
try {
|
||||
return "Incoming connection from " + ((IPEndPoint)DestinationSocket.RemoteEndPoint).Address.ToString();
|
||||
} catch {
|
||||
return "Client connection";
|
||||
}
|
||||
}
|
||||
///<summary>Starts relaying data between the remote host and the local client.</summary>
|
||||
///<remarks>This method should only be called after all protocol specific communication has been finished.</remarks>
|
||||
public void StartRelay() {
|
||||
try {
|
||||
ClientSocket.BeginReceive(Buffer, 0, Buffer.Length, SocketFlags.None, new AsyncCallback(this.OnClientReceive), ClientSocket);
|
||||
DestinationSocket.BeginReceive(RemoteBuffer, 0, RemoteBuffer.Length, SocketFlags.None, new AsyncCallback(this.OnRemoteReceive), DestinationSocket);
|
||||
} catch {
|
||||
Dispose();
|
||||
}
|
||||
}
|
||||
///<summary>Called when we have received data from the local client.<br>Incoming data will immediately be forwarded to the remote host.</br></summary>
|
||||
///<param name="ar">The result of the asynchronous operation.</param>
|
||||
protected void OnClientReceive(IAsyncResult ar) {
|
||||
try {
|
||||
int Ret = ClientSocket.EndReceive(ar);
|
||||
if (Ret <= 0) {
|
||||
Dispose();
|
||||
return;
|
||||
}
|
||||
DestinationSocket.BeginSend(Buffer, 0, Ret, SocketFlags.None, new AsyncCallback(this.OnRemoteSent), DestinationSocket);
|
||||
} catch {
|
||||
Dispose();
|
||||
}
|
||||
}
|
||||
///<summary>Called when we have sent data to the remote host.<br>When all the data has been sent, we will start receiving again from the local client.</br></summary>
|
||||
///<param name="ar">The result of the asynchronous operation.</param>
|
||||
protected void OnRemoteSent(IAsyncResult ar) {
|
||||
try {
|
||||
int Ret = DestinationSocket.EndSend(ar);
|
||||
if (Ret > 0) {
|
||||
ClientSocket.BeginReceive(Buffer, 0, Buffer.Length, SocketFlags.None, new AsyncCallback(this.OnClientReceive), ClientSocket);
|
||||
return;
|
||||
}
|
||||
} catch {}
|
||||
Dispose();
|
||||
}
|
||||
///<summary>Called when we have received data from the remote host.<br>Incoming data will immediately be forwarded to the local client.</br></summary>
|
||||
///<param name="ar">The result of the asynchronous operation.</param>
|
||||
protected void OnRemoteReceive(IAsyncResult ar) {
|
||||
try {
|
||||
int Ret = DestinationSocket.EndReceive(ar);
|
||||
if (Ret <= 0){
|
||||
Dispose();
|
||||
return;
|
||||
}
|
||||
ClientSocket.BeginSend(RemoteBuffer, 0, Ret, SocketFlags.None, new AsyncCallback(this.OnClientSent), ClientSocket);
|
||||
} catch {
|
||||
Dispose();
|
||||
}
|
||||
}
|
||||
///<summary>Called when we have sent data to the local client.<br>When all the data has been sent, we will start receiving again from the remote host.</br></summary>
|
||||
///<param name="ar">The result of the asynchronous operation.</param>
|
||||
protected void OnClientSent(IAsyncResult ar) {
|
||||
try {
|
||||
int Ret = ClientSocket.EndSend(ar);
|
||||
if (Ret > 0) {
|
||||
DestinationSocket.BeginReceive(RemoteBuffer, 0, RemoteBuffer.Length, SocketFlags.None, new AsyncCallback(this.OnRemoteReceive), DestinationSocket);
|
||||
return;
|
||||
}
|
||||
} catch {}
|
||||
Dispose();
|
||||
}
|
||||
///<summary>Starts communication with the local client.</summary>
|
||||
public abstract void StartHandshake();
|
||||
// private variables
|
||||
/// <summary>Holds the address of the method to call when this client is ready to be destroyed.</summary>
|
||||
private DestroyDelegate Destroyer;
|
||||
/// <summary>Holds the value of the ClientSocket property.</summary>
|
||||
private Socket m_ClientSocket;
|
||||
/// <summary>Holds the value of the DestinationSocket property.</summary>
|
||||
private Socket m_DestinationSocket;
|
||||
/// <summary>Holds the value of the Buffer property.</summary>
|
||||
private byte[] m_Buffer = new byte[4096]; //0<->4095 = 4096
|
||||
/// <summary>Holds the value of the RemoteBuffer property.</summary>
|
||||
private byte[] m_RemoteBuffer = new byte[1024];
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue