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-rw-r--r--app/src/main/java/net/sourceforge/jsocks/server/ServerAuthenticatorNone.java169
1 files changed, 0 insertions, 169 deletions
diff --git a/app/src/main/java/net/sourceforge/jsocks/server/ServerAuthenticatorNone.java b/app/src/main/java/net/sourceforge/jsocks/server/ServerAuthenticatorNone.java
deleted file mode 100644
index e4edbe7..0000000
--- a/app/src/main/java/net/sourceforge/jsocks/server/ServerAuthenticatorNone.java
+++ /dev/null
@@ -1,169 +0,0 @@
-package net.sourceforge.jsocks.server;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.PushbackInputStream;
-import java.net.Socket;
-
-import net.sourceforge.jsocks.ProxyMessage;
-import net.sourceforge.jsocks.UDPEncapsulation;
-
-/**
- An implementation of ServerAuthenticator, which does <b>not</b> do
- any authentication.
-<P>
-<FONT size="+3" color ="FF0000"> Warning!!</font><br> Should not be
-used on machines which are not behind the firewall.
-<p>
-It is only provided to make implementing other authentication schemes
-easier.<br>
-For Example: <tt><pre>
- class MyAuth extends socks.server.ServerAuthenticator{
- ...
- public ServerAuthenticator startSession(java.net.Socket s){
- if(!checkHost(s.getInetAddress()) return null;
- return super.startSession(s);
- }
-
- boolean checkHost(java.net.Inetaddress addr){
- boolean allow;
- //Do it somehow
- return allow;
- }
- }
-</pre></tt>
-*/
-public class ServerAuthenticatorNone implements ServerAuthenticator{
-
- static final byte[] socks5response = {5,0};
-
- InputStream in;
- OutputStream out;
-
- /**
- Creates new instance of the ServerAuthenticatorNone.
- */
- public ServerAuthenticatorNone(){
- this.in = null;
- this.out = null;
- }
- /**
- Constructs new ServerAuthenticatorNone object suitable for returning
- from the startSession function.
- @param in Input stream to return from getInputStream method.
- @param out Output stream to return from getOutputStream method.
- */
- public ServerAuthenticatorNone(InputStream in, OutputStream out){
- this.in = in;
- this.out = out;
- }
- /**
- Grants access to everyone.Removes authentication related bytes from
- the stream, when a SOCKS5 connection is being made, selects an
- authentication NONE.
- */
- public ServerAuthenticator startSession(Socket s)
- throws IOException{
-
- PushbackInputStream in = new PushbackInputStream(s.getInputStream());
- OutputStream out = s.getOutputStream();
-
- int version = in.read();
- if(version == 5){
- if(!selectSocks5Authentication(in,out,0))
- return null;
- }else if(version == 4){
- //Else it is the request message allready, version 4
- in.unread(version);
- }else
- return null;
-
-
- return new ServerAuthenticatorNone(in,out);
- }
-
- /**
- Get input stream.
- @return Input stream speciefied in the constructor.
- */
- public InputStream getInputStream(){
- return in;
- }
- /**
- Get output stream.
- @return Output stream speciefied in the constructor.
- */
- public OutputStream getOutputStream(){
- return out;
- }
- /**
- Allways returns null.
- @return null
- */
- public UDPEncapsulation getUdpEncapsulation(){
- return null;
- }
-
- /**
- Allways returns true.
- */
- public boolean checkRequest(ProxyMessage msg){
- return true;
- }
-
- /**
- Allways returns true.
- */
- public boolean checkRequest(java.net.DatagramPacket dp, boolean out){
- return true;
- }
-
- /**
- Does nothing.
- */
- public void endSession(){
- }
-
- /**
- Convinience routine for selecting SOCKSv5 authentication.
- <p>
- This method reads in authentication methods that client supports,
- checks wether it supports given method. If it does, the notification
- method is written back to client, that this method have been chosen
- for authentication. If given method was not found, authentication
- failure message is send to client ([5,FF]).
- @param in Input stream, version byte should be removed from the stream
- before calling this method.
- @param out Output stream.
- @param methodId Method which should be selected.
- @return true if methodId was found, false otherwise.
- */
- static public boolean selectSocks5Authentication(InputStream in,
- OutputStream out,
- int methodId)
- throws IOException{
-
- int num_methods = in.read();
- if (num_methods <= 0) return false;
- byte method_ids[] = new byte[num_methods];
- byte response[] = new byte[2];
- boolean found = false;
-
- response[0] = (byte) 5; //SOCKS version
- response[1] = (byte) 0xFF; //Not found, we are pessimistic
-
- int bread = 0; //bytes read so far
- while(bread < num_methods)
- bread += in.read(method_ids,bread,num_methods-bread);
-
- for(int i=0;i<num_methods;++i)
- if(method_ids[i] == methodId){
- found = true;
- response[1] = (byte) methodId;
- break;
- }
-
- out.write(response);
- return found;
- }
-}