510Connectbot: src/net/sourceforge/jsocks/CProxy.java annotate

author	Carl Byington <carl@five-ten-sg.com>
date	Fri, 01 Aug 2014 11:23:10 -0700
parents
children	3c16508419fe

rev	line source
349 205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	1 package net.sourceforge.jsocks;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	2 import java.net.*;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	3 import java.io.*;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	4 import java.util.Hashtable;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	5 import java.util.Enumeration;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	6
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	7 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	8 Abstract class CProxy, base for classes Socks4Proxy and Socks5Proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	9 Defines methods for specifying default proxy, to be
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	10 used by all classes of this package.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	11 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	12
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	13 public abstract class CProxy{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	14
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	15 //Data members
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	16 protected InetRange directHosts = new InetRange();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	17
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	18 protected InetAddress proxyIP = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	19 protected String proxyHost = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	20 protected int proxyPort;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	21 protected Socket proxySocket = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	22
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	23 protected InputStream in;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	24 protected OutputStream out;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	25
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	26 protected int version;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	27
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	28 protected CProxy chainProxy = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	29
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	30
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	31 //Protected static/class variables
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	32 protected static CProxy defaultProxy = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	33
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	34 //Constructors
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	35 //====================
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	36 CProxy(CProxy chainProxy,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	37 String proxyHost,int proxyPort)throws UnknownHostException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	38 this.chainProxy = chainProxy;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	39 this.proxyHost = proxyHost;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	40
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	41 if(chainProxy == null)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	42 this.proxyIP = InetAddress.getByName(proxyHost);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	43
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	44 this.proxyPort = proxyPort;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	45 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	46
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	47
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	48 CProxy(String proxyHost,int proxyPort)throws UnknownHostException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	49 this(null,proxyHost,proxyPort);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	50 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	51
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	52 CProxy(CProxy chainProxy,InetAddress proxyIP,int proxyPort){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	53 this.chainProxy = chainProxy;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	54 this.proxyIP = proxyIP;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	55 this.proxyPort = proxyPort;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	56 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	57
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	58 CProxy(InetAddress proxyIP,int proxyPort){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	59 this(null,proxyIP,proxyPort);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	60 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	61
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	62 CProxy(CProxy p){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	63 this.proxyIP = p.proxyIP;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	64 this.proxyPort = p.proxyPort;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	65 this.version = p.version;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	66 this.directHosts = p.directHosts;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	67 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	68
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	69 //Public instance methods
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	70 //========================
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	71
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	72 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	73 Get the port on which proxy server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	74 * @return CProxy port.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	75 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	76 public int getPort(){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	77 return proxyPort;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	78 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	79 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	80 Get the ip address of the proxy server host.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	81 * @return CProxy InetAddress.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	82 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	83 public InetAddress getInetAddress(){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	84 return proxyIP;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	85 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	86 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	87 * Adds given ip to the list of direct addresses.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	88 * This machine will be accessed without using proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	89 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	90 public void addDirect(InetAddress ip){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	91 directHosts.add(ip);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	92 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	93 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	94 * Adds host to the list of direct addresses.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	95 * This machine will be accessed without using proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	96 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	97 public boolean addDirect(String host){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	98 return directHosts.add(host);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	99 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	100 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	101 * Adds given range of addresses to the lsit of direct addresses,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	102 * machines within this range will be accessed without using proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	103 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	104 public void addDirect(InetAddress from,InetAddress to){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	105 directHosts.add(from,to);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	106 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	107 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	108 * Sets given InetRange as the list of direct address, previous
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	109 * list will be discarded, any changes done previously with
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	110 * addDirect(Inetaddress) will be lost.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	111 * The machines in this range will be accessed without using proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	112 * @param ir InetRange which should be used to look up direct addresses.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	113 * @see InetRange
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	114 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	115 public void setDirect(InetRange ir){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	116 directHosts = ir;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	117 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	118
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	119 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	120 Get the list of direct hosts.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	121 * @return Current range of direct address as InetRange object.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	122 * @see InetRange
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	123 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	124 public InetRange getDirect(){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	125 return directHosts;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	126 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	127 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	128 Check wether the given host is on the list of direct address.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	129 @param host Host name to check.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	130 * @return true if the given host is specified as the direct addresses.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	131 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	132 public boolean isDirect(String host){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	133 return directHosts.contains(host);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	134 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	135 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	136 Check wether the given host is on the list of direct addresses.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	137 @param host Host address to check.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	138 * @return true if the given host is specified as the direct address.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	139 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	140 public boolean isDirect(InetAddress host){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	141 return directHosts.contains(host);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	142 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	143 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	144 Set the proxy which should be used to connect to given proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	145 @param chainProxy CProxy to use to connect to this proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	146 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	147 public void setChainProxy(CProxy chainProxy){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	148 this.chainProxy = chainProxy;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	149 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	150
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	151 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	152 Get proxy which is used to connect to this proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	153 @return CProxy which is used to connect to this proxy, or null
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	154 if proxy is to be contacted directly.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	155 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	156 public CProxy getChainProxy(){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	157 return chainProxy;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	158 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	159
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	160 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	161 Get string representation of this proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	162 * @returns string in the form:proxyHost:proxyPort \t Version versionNumber
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	163 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	164 public String toString(){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	165 return (""+proxyIP.getHostName()+":"+proxyPort+"\tVersion "+version);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	166 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	167
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	168
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	169 //Public Static(Class) Methods
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	170 //==============================
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	171
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	172 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	173 * Sets SOCKS4 proxy as default.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	174 @param hostName Host name on which SOCKS4 server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	175 @param port Port on which SOCKS4 server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	176 @param user Username to use for communications with proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	177 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	178 public static void setDefaultProxy(String hostName,int port,String user)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	179 throws UnknownHostException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	180 defaultProxy = new Socks4Proxy(hostName,port,user);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	181 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	182
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	183 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	184 * Sets SOCKS4 proxy as default.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	185 @param ipAddress Host address on which SOCKS4 server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	186 @param port Port on which SOCKS4 server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	187 @param user Username to use for communications with proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	188 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	189 public static void setDefaultProxy(InetAddress ipAddress,int port,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	190 String user){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	191 defaultProxy = new Socks4Proxy(ipAddress,port,user);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	192 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	193 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	194 * Sets SOCKS5 proxy as default.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	195 * Default proxy only supports no-authentication.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	196 @param hostName Host name on which SOCKS5 server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	197 @param port Port on which SOCKS5 server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	198 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	199 public static void setDefaultProxy(String hostName,int port)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	200 throws UnknownHostException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	201 defaultProxy = new Socks5Proxy(hostName,port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	202 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	203 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	204 * Sets SOCKS5 proxy as default.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	205 * Default proxy only supports no-authentication.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	206 @param ipAddress Host address on which SOCKS5 server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	207 @param port Port on which SOCKS5 server is running.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	208 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	209 public static void setDefaultProxy(InetAddress ipAddress,int port){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	210 defaultProxy = new Socks5Proxy(ipAddress,port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	211 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	212 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	213 * Sets default proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	214 @param p CProxy to use as default proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	215 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	216 public static void setDefaultProxy(CProxy p){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	217 defaultProxy = p;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	218 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	219
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	220 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	221 Get current default proxy.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	222 * @return Current default proxy, or null if none is set.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	223 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	224 public static CProxy getDefaultProxy(){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	225 return defaultProxy;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	226 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	227
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	228 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	229 Parses strings in the form: host[:port:user:password], and creates
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	230 proxy from information obtained from parsing.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	231 <p>
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	232 Defaults: port = 1080.<br>
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	233 If user specified but not password, creates Socks4Proxy, if user
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	234 not specified creates Socks5Proxy, if both user and password are
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	235 speciefied creates Socks5Proxy with user/password authentication.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	236 @param proxy_entry String in the form host[:port:user:password]
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	237 @return CProxy created from the string, null if entry was somehow
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	238 invalid(host unknown for example, or empty string)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	239 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	240 public static CProxy parseProxy(String proxy_entry){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	241
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	242 String proxy_host;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	243 int proxy_port = 1080;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	244 String proxy_user = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	245 String proxy_password = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	246 CProxy proxy;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	247
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	248 java.util.StringTokenizer st = new java.util.StringTokenizer(
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	249 proxy_entry,":");
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	250 if(st.countTokens() < 1) return null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	251
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	252 proxy_host = st.nextToken();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	253 if(st.hasMoreTokens())
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	254 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	255 proxy_port = Integer.parseInt(st.nextToken().trim());
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	256 }catch(NumberFormatException nfe){}
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	257
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	258 if(st.hasMoreTokens())
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	259 proxy_user = st.nextToken();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	260
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	261 if(st.hasMoreTokens())
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	262 proxy_password = st.nextToken();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	263
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	264 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	265 if(proxy_user == null)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	266 proxy = new Socks5Proxy(proxy_host,proxy_port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	267 else if(proxy_password == null)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	268 proxy = new Socks4Proxy(proxy_host,proxy_port,proxy_user);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	269 else{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	270 proxy = new Socks5Proxy(proxy_host,proxy_port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	271 UserPasswordAuthentication upa = new UserPasswordAuthentication(
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	272 proxy_user, proxy_password);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	273
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	274 ((Socks5Proxy)proxy).setAuthenticationMethod(upa.METHOD_ID,upa);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	275 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	276 }catch(UnknownHostException uhe){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	277 return null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	278 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	279
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	280 return proxy;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	281 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	282
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	283
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	284 //Protected Methods
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	285 //=================
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	286
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	287 protected void startSession()throws SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	288 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	289 if(chainProxy == null)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	290 proxySocket = new Socket(proxyIP,proxyPort);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	291 else if(proxyIP != null)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	292 proxySocket = new SocksSocket(chainProxy,proxyIP,proxyPort);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	293 else
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	294 proxySocket = new SocksSocket(chainProxy,proxyHost,proxyPort);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	295
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	296 in = proxySocket.getInputStream();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	297 out = proxySocket.getOutputStream();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	298 }catch(SocksException se){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	299 throw se;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	300 }catch(IOException io_ex){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	301 throw new SocksException(SOCKS_PROXY_IO_ERROR,""+io_ex);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	302 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	303 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	304
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	305 protected abstract CProxy copy();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	306 protected abstract ProxyMessage formMessage(int cmd,InetAddress ip,int port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	307 protected abstract ProxyMessage formMessage(int cmd,String host,int port)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	308 throws UnknownHostException;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	309 protected abstract ProxyMessage formMessage(InputStream in)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	310 throws SocksException,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	311 IOException;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	312
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	313
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	314 protected ProxyMessage connect(InetAddress ip,int port)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	315 throws SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	316 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	317 startSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	318 ProxyMessage request = formMessage(SOCKS_CMD_CONNECT,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	319 ip,port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	320 return exchange(request);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	321 }catch(SocksException se){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	322 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	323 throw se;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	324 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	325 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	326 protected ProxyMessage connect(String host,int port)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	327 throws UnknownHostException,SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	328 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	329 startSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	330 ProxyMessage request = formMessage(SOCKS_CMD_CONNECT,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	331 host,port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	332 return exchange(request);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	333 }catch(SocksException se){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	334 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	335 throw se;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	336 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	337 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	338
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	339 protected ProxyMessage bind(InetAddress ip,int port)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	340 throws SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	341 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	342 startSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	343 ProxyMessage request = formMessage(SOCKS_CMD_BIND,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	344 ip,port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	345 return exchange(request);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	346 }catch(SocksException se){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	347 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	348 throw se;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	349 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	350 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	351 protected ProxyMessage bind(String host,int port)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	352 throws UnknownHostException,SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	353 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	354 startSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	355 ProxyMessage request = formMessage(SOCKS_CMD_BIND,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	356 host,port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	357 return exchange(request);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	358 }catch(SocksException se){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	359 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	360 throw se;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	361 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	362 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	363
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	364 protected ProxyMessage accept()
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	365 throws IOException,SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	366 ProxyMessage msg;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	367 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	368 msg = formMessage(in);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	369 }catch(InterruptedIOException iioe){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	370 throw iioe;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	371 }catch(IOException io_ex){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	372 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	373 throw new SocksException(SOCKS_PROXY_IO_ERROR,"While Trying accept:"
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	374 +io_ex);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	375 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	376 return msg;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	377 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	378
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	379 protected ProxyMessage udpAssociate(InetAddress ip,int port)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	380 throws SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	381 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	382 startSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	383 ProxyMessage request = formMessage(SOCKS_CMD_UDP_ASSOCIATE,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	384 ip,port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	385 if(request != null)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	386 return exchange(request);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	387 }catch(SocksException se){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	388 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	389 throw se;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	390 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	391 //Only get here if request was null
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	392 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	393 throw new SocksException(SOCKS_METHOD_NOTSUPPORTED,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	394 "This version of proxy does not support UDP associate, use version 5");
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	395 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	396 protected ProxyMessage udpAssociate(String host,int port)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	397 throws UnknownHostException,SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	398 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	399 startSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	400 ProxyMessage request = formMessage(SOCKS_CMD_UDP_ASSOCIATE,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	401 host,port);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	402 if(request != null) return exchange(request);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	403 }catch(SocksException se){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	404 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	405 throw se;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	406 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	407 //Only get here if request was null
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	408 endSession();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	409 throw new SocksException(SOCKS_METHOD_NOTSUPPORTED,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	410 "This version of proxy does not support UDP associate, use version 5");
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	411 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	412
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	413
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	414 protected void endSession(){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	415 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	416 if(proxySocket!=null) proxySocket.close();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	417 proxySocket = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	418 }catch(IOException io_ex){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	419 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	420 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	421
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	422 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	423 *Sends the request to SOCKS server
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	424 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	425 protected void sendMsg(ProxyMessage msg)throws SocksException,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	426 IOException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	427 msg.write(out);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	428 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	429
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	430 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	431 * Reads the reply from the SOCKS server
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	432 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	433 protected ProxyMessage readMsg()throws SocksException,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	434 IOException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	435 return formMessage(in);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	436 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	437 /**
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	438 *Sends the request reads reply and returns it
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	439 *throws exception if something wrong with IO
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	440 *or the reply code is not zero
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	441 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	442 protected ProxyMessage exchange(ProxyMessage request)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	443 throws SocksException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	444 ProxyMessage reply;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	445 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	446 request.write(out);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	447 reply = formMessage(in);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	448 }catch(SocksException s_ex){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	449 throw s_ex;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	450 }catch(IOException ioe){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	451 throw(new SocksException(SOCKS_PROXY_IO_ERROR,""+ioe));
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	452 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	453 return reply;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	454 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	455
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	456
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	457 //Private methods
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	458 //===============
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	459
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	460
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	461 //Constants
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	462
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	463 public static final int SOCKS_SUCCESS =0;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	464 public static final int SOCKS_FAILURE =1;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	465 public static final int SOCKS_BADCONNECT =2;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	466 public static final int SOCKS_BADNETWORK =3;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	467 public static final int SOCKS_HOST_UNREACHABLE =4;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	468 public static final int SOCKS_CONNECTION_REFUSED =5;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	469 public static final int SOCKS_TTL_EXPIRE =6;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	470 public static final int SOCKS_CMD_NOT_SUPPORTED =7;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	471 public static final int SOCKS_ADDR_NOT_SUPPORTED =8;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	472
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	473 public static final int SOCKS_NO_PROXY =1<<16;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	474 public static final int SOCKS_PROXY_NO_CONNECT =2<<16;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	475 public static final int SOCKS_PROXY_IO_ERROR =3<<16;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	476 public static final int SOCKS_AUTH_NOT_SUPPORTED =4<<16;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	477 public static final int SOCKS_AUTH_FAILURE =5<<16;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	478 public static final int SOCKS_JUST_ERROR =6<<16;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	479
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	480 public static final int SOCKS_DIRECT_FAILED =7<<16;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	481 public static final int SOCKS_METHOD_NOTSUPPORTED =8<<16;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	482
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	483
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	484 static final int SOCKS_CMD_CONNECT =0x1;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	485 static final int SOCKS_CMD_BIND =0x2;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	486 static final int SOCKS_CMD_UDP_ASSOCIATE =0x3;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	487
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	488 }

349

205ee2873330 update jsocks to 2011-03-19