mirror of
https://github.com/RaySollium99/MSNPSharp.git
synced 2025-09-03 21:57:44 -04:00
108 lines
4.5 KiB
C#
108 lines
4.5 KiB
C#
/*
|
|
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;
|
|
using Org.Mentalis.Proxy;
|
|
using Org.Mentalis.Proxy.Socks;
|
|
|
|
namespace Org.Mentalis.Proxy.Socks.Authentication {
|
|
|
|
///<summary>Defines the signature of the method to be called when the authentication is complete.</summary>
|
|
///<param name="Success">Specifies whether the authentication was successfull or not.</param>
|
|
internal delegate void AuthenticationCompleteDelegate(bool Success);
|
|
|
|
///<summary>Authenticates a user on a SOCKS5 server according to the implemented subprotocol.</summary>
|
|
///<remarks>This is an abstract class. The subprotocol that's used to authenticate a user is specified in the subclasses of this base class.</remarks>
|
|
internal abstract class AuthBase {
|
|
///<summary>Initializes a new instance of the AuthBase class.</summary>
|
|
public AuthBase() {}
|
|
///<summary>Starts the authentication process.</summary>
|
|
///<remarks>This abstract method must be implemented in the subclasses, according to the selected subprotocol.</remarks>
|
|
///<param name="Connection">The connection with the SOCKS client.</param>
|
|
///<param name="Callback">The method to call when the authentication is complete.</param>
|
|
internal abstract void StartAuthentication(Socket Connection, AuthenticationCompleteDelegate Callback);
|
|
///<summary>Gets or sets the Socket connection between the proxy server and the SOCKS client.</summary>
|
|
///<value>A Socket instance defining the connection between the proxy server and the local client.</value>
|
|
protected Socket Connection {
|
|
get {
|
|
return m_Connection;
|
|
}
|
|
set {
|
|
if (value == null)
|
|
throw new ArgumentNullException();
|
|
m_Connection = value;
|
|
}
|
|
}
|
|
///<summary>Gets a buffer that can be used to receive data from the client connection.</summary>
|
|
///<value>An array of bytes that can be used to receive data from the client connection.</value>
|
|
protected byte [] Buffer {
|
|
get {
|
|
return m_Buffer;
|
|
}
|
|
}
|
|
///<summary>Gets or sets an array of bytes that can be used to store all received data.</summary>
|
|
///<value>An array of bytes that can be used to store all received data.</value>
|
|
protected byte [] Bytes {
|
|
get {
|
|
return m_Bytes;
|
|
}
|
|
set {
|
|
m_Bytes = value;
|
|
}
|
|
}
|
|
///<summary>Adds bytes to the array returned by the Bytes property.</summary>
|
|
///<param name="NewBytes">The bytes to add.</param>
|
|
///<param name="Cnt">The number of bytes to add.</param>
|
|
protected void AddBytes(byte [] NewBytes, int Cnt) {
|
|
if (Cnt <= 0 || NewBytes == null || Cnt > NewBytes.Length)
|
|
return;
|
|
if (Bytes == null) {
|
|
Bytes = new byte[Cnt];
|
|
} else {
|
|
byte [] tmp = Bytes;
|
|
Bytes = new byte[Bytes.Length + Cnt];
|
|
Array.Copy(tmp, 0, Bytes, 0, tmp.Length);
|
|
}
|
|
Array.Copy(NewBytes, 0, Bytes, Bytes.Length - Cnt, Cnt);
|
|
}
|
|
///<summary>The method to call when the authentication is complete.</summary>
|
|
protected AuthenticationCompleteDelegate Callback;
|
|
// private variables
|
|
/// <summary>Holds the value of the Connection property.</summary>
|
|
private Socket m_Connection;
|
|
/// <summary>Holds the value of the Buffer property.</summary>
|
|
private byte [] m_Buffer = new byte[1024];
|
|
/// <summary>Holds the value of the Bytes property.</summary>
|
|
private byte [] m_Bytes;
|
|
}
|
|
|
|
}
|