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Java > Open Source Codes > socks > Authentication


1 package socks;
2
3 /**
4  The Authentication interface provides for performing method specific
5  authentication for SOCKS5 connections.
6 */
7 public interface Authentication{
8    /**
9      This method is called when SOCKS5 server have selected a particular
10      authentication method, for whch an implementaion have been registered.
11
12      <p>
13      This method should return an array {inputstream,outputstream
14      [,UDPEncapsulation]}. The reason for that is that SOCKS5 protocol
15      allows to have method specific encapsulation of data on the socket for
16      purposes of integrity or security. And this encapsulation should be
17      performed by those streams returned from the method. It is also possible
18      to encapsulate datagrams. If authentication method supports such
19      encapsulation an instance of the UDPEncapsulation interface should be
20      returned as third element of the array, otherwise either null should be
21      returned as third element, or array should contain only 2 elements.
22
23      @param methodId Authentication method selected by the server.
24      @param proxySocket Socket used to conect to the proxy.
25      @return Two or three element array containing
26              Input/Output streams which should be used on this connection.
27              Third argument is optional and should contain an instance
28              of UDPEncapsulation. It should be provided if the authentication
29              method used requires any encapsulation to be done on the
30              datagrams.
31    */
32    Object JavaDoc[] doSocksAuthentication(int methodId,java.net.Socket JavaDoc proxySocket)
33            throws java.io.IOException JavaDoc;
34 }
35
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