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comparison src/net/sourceforge/jsocks/Socks4Proxy.java @ 0:0ce5cc452d02

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initial version
author Carl Byington <carl@five-ten-sg.com>
date Thu, 22 May 2014 10:41:19 -0700
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children 205ee2873330
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-1:000000000000 0:0ce5cc452d02
1 package net.sourceforge.jsocks;
2 import java.io.IOException;
3 import java.io.InputStream;
4 import java.net.InetAddress;
5 import java.net.UnknownHostException;
6
7 /**
8 Proxy which describes SOCKS4 proxy.
9 */
10
11 public class Socks4Proxy extends Proxy implements Cloneable {
12
13 //Data members
14 String user;
15
16 //Public Constructors
17 //====================
18
19 /**
20 Creates the SOCKS4 proxy
21 @param p Proxy to use to connect to this proxy, allows proxy chaining.
22 @param proxyHost Address of the proxy server.
23 @param proxyPort Port of the proxy server
24 @param user User name to use for identification purposes.
25 @throws UnknownHostException If proxyHost can't be resolved.
26 */
27 public Socks4Proxy(String proxyHost, int proxyPort, String user)
28 throws UnknownHostException {
29 super(proxyHost, proxyPort);
30 this.user = new String(user);
31 version = 4;
32 }
33
34 /**
35 Creates the SOCKS4 proxy
36 @param p Proxy to use to connect to this proxy, allows proxy chaining.
37 @param proxyIP Address of the proxy server.
38 @param proxyPort Port of the proxy server
39 @param user User name to use for identification purposes.
40 */
41 public Socks4Proxy(Proxy p, InetAddress proxyIP, int proxyPort, String user) {
42 super(p, proxyIP, proxyPort);
43 this.user = new String(user);
44 version = 4;
45 }
46
47 /**
48 Creates the SOCKS4 proxy
49 @param proxyIP Address of the proxy server.
50 @param proxyPort Port of the proxy server
51 @param user User name to use for identification purposes.
52 */
53 public Socks4Proxy(InetAddress proxyIP, int proxyPort, String user) {
54 this(null, proxyIP, proxyPort, user);
55 }
56
57 //Public instance methods
58 //========================
59
60 /**
61 * Creates a clone of this proxy. Changes made to the clone should not
62 * affect this object.
63 */
64 public Object clone() {
65 Socks4Proxy newProxy = new Socks4Proxy(proxyIP, proxyPort, user);
66 newProxy.chainProxy = chainProxy;
67 return newProxy;
68 }
69
70
71 //Public Static(Class) Methods
72 //==============================
73
74
75 //Protected Methods
76 //=================
77
78 protected Proxy copy() {
79 Socks4Proxy copy = new Socks4Proxy(proxyIP, proxyPort, user);
80 copy.chainProxy = chainProxy;
81 return copy;
82 }
83
84 protected ProxyMessage formMessage(int cmd, InetAddress ip, int port) {
85 switch (cmd) {
86 case SOCKS_CMD_CONNECT:
87 cmd = Socks4Message.REQUEST_CONNECT;
88 break;
89
90 case SOCKS_CMD_BIND:
91 cmd = Socks4Message.REQUEST_BIND;
92 break;
93
94 default:
95 return null;
96 }
97
98 return new Socks4Message(cmd, ip, port, user);
99 }
100 protected ProxyMessage formMessage(int cmd, String host, int port)
101 throws UnknownHostException {
102 return formMessage(cmd, InetAddress.getByName(host), port);
103 }
104 protected ProxyMessage formMessage(InputStream in)
105 throws SocksException,
106 IOException {
107 return new Socks4Message(in, true);
108 }
109
110 }