Mercurial > 510Connectbot
diff src/net/sourceforge/jsocks/SocksSocket.java @ 349:205ee2873330
update jsocks to 2011-03-19
author | Carl Byington <carl@five-ten-sg.com> |
---|---|
date | Fri, 01 Aug 2014 11:23:10 -0700 |
parents | 0ce5cc452d02 |
children |
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--- a/src/net/sourceforge/jsocks/SocksSocket.java Fri Aug 01 10:25:44 2014 -0700 +++ b/src/net/sourceforge/jsocks/SocksSocket.java Fri Aug 01 11:23:10 2014 -0700 @@ -1,297 +1,332 @@ -package net.sourceforge.jsocks; - -import java.net.*; -import java.io.*; - -/** - * SocksSocket tryies to look very similar to normal Socket, - * while allowing connections through the SOCKS4 or 5 proxy. - * To use this class you will have to identify proxy you need - * to use, Proxy class allows you to set default proxy, which - * will be used by all Socks aware sockets. You can also create - * either Socks4Proxy or Socks5Proxy, and use them by passing to the - * appropriate constructors. - * <P> - * Using Socks package can be as easy as that: - * - * <pre><tt> - * - * import Socks.*; - * .... - * - * try{ - * //Specify SOCKS5 proxy - * Proxy.setDefaultProxy("socks-proxy",1080); - * - * //OR you still use SOCKS4 - * //Code below uses SOCKS4 proxy - * //Proxy.setDefaultProxy("socks-proxy",1080,userName); - * - * Socket s = SocksSocket("some.host.of.mine",13); - * readTimeFromSock(s); - * }catch(SocksException sock_ex){ - * //Usually it will turn in more or less meaningfull message - * System.err.println("SocksException:"+sock_ex); - * } - * - * </tt></pre> - *<P> - * However if the need exist for more control, like resolving addresses - * remotely, or using some non-trivial authentication schemes, it can be done. - */ - -public class SocksSocket extends Socket { - //Data members - protected Proxy proxy; - protected String localHost, remoteHost; - protected InetAddress localIP, remoteIP; - protected int localPort, remotePort; - - private Socket directSock = null; - - /** - * Tryies to connect to given host and port - * using default proxy. If no default proxy speciefied - * it throws SocksException with error code SOCKS_NO_PROXY. - @param host Machine to connect to. - @param port Port to which to connect. - * @see SocksSocket#SocksSocket(Proxy,String,int) - * @see Socks5Proxy#resolveAddrLocally - */ - public SocksSocket(String host, int port) - throws SocksException, UnknownHostException { - this(Proxy.defaultProxy, host, port); - } - /** - * Connects to host port using given proxy server. - @param p Proxy to use. - @param host Machine to connect to. - @param port Port to which to connect. - @throws UnknownHostException - If one of the following happens: - <ol> - - <li> Proxy settings say that address should be resolved locally, but - this fails. - <li> Proxy settings say that the host should be contacted directly but - host name can't be resolved. - </ol> - @throws SocksException - If one of the following happens: - <ul> - <li> Proxy is is null. - <li> Proxy settings say that the host should be contacted directly but - this fails. - <li> Socks Server can't be contacted. - <li> Authentication fails. - <li> Connection is not allowed by the SOCKS proxy. - <li> SOCKS proxy can't establish the connection. - <li> Any IO error occured. - <li> Any protocol error occured. - </ul> - @throws IOexception if anything is wrong with I/O. - @see Socks5Proxy#resolveAddrLocally - */ - public SocksSocket(Proxy p, String host, int port) throws SocksException, - UnknownHostException { - remoteHost = host; - remotePort = port; - remoteIP = InetAddress.getByName(host); - doDirect(); - } - - /** - Connects to given ip and port using given Proxy server. - @param p Proxy to use. - @param ip Machine to connect to. - @param port Port to which to connect. - - */ - public SocksSocket(InetAddress ip, int port) throws SocksException { - this.remoteIP = ip; - this.remotePort = port; - this.remoteHost = ip.getHostName(); - doDirect(); - } - - - /** - * These 2 constructors are used by the SocksServerSocket. - * This socket simply overrides remoteHost, remotePort - */ - protected SocksSocket(String host, int port, Proxy proxy) { - this.remotePort = port; - this.proxy = proxy; - this.localIP = proxy.proxySocket.getLocalAddress(); - this.localPort = proxy.proxySocket.getLocalPort(); - this.remoteHost = host; - } - protected SocksSocket(InetAddress ip, int port, Proxy proxy) { - remoteIP = ip; - remotePort = port; - this.proxy = proxy; - this.localIP = proxy.proxySocket.getLocalAddress(); - this.localPort = proxy.proxySocket.getLocalPort(); - remoteHost = remoteIP.getHostName(); - } - - /** - * Same as Socket - */ - public void close() throws IOException { - if (proxy != null)proxy.endSession(); - - proxy = null; - } - /** - * Same as Socket - */ - public InputStream getInputStream() { - return proxy.in; - } - /** - * Same as Socket - */ - public OutputStream getOutputStream() { - return proxy.out; - } - /** - * Same as Socket - */ - public int getPort() { - return remotePort; - } - /** - * Returns remote host name, it is usefull in cases when addresses - * are resolved by proxy, and we can't create InetAddress object. - @return The name of the host this socket is connected to. - */ - public String getHost() { - return remoteHost; - } - /** - * Get remote host as InetAddress object, might return null if - * addresses are resolved by proxy, and it is not possible to resolve - * it locally - @return Ip address of the host this socket is connected to, or null - if address was returned by the proxy as DOMAINNAME and can't be - resolved locally. - */ - public InetAddress getInetAddress() { - if (remoteIP == null) { - try { - remoteIP = InetAddress.getByName(remoteHost); - } - catch (UnknownHostException e) { - return null; - } - } - - return remoteIP; - } - - /** - * Get the port assigned by the proxy for the socket, not - * the port on locall machine as in Socket. - @return Port of the socket used on the proxy server. - */ - public int getLocalPort() { - return localPort; - } - - /** - * Get address assigned by proxy to make a remote connection, - * it might be different from the host specified for the proxy. - * Can return null if socks server returned this address as hostname - * and it can't be resolved locally, use getLocalHost() then. - @return Address proxy is using to make a connection. - */ - public InetAddress getLocalAddress() { - if (localIP == null) { - try { - localIP = InetAddress.getByName(localHost); - } - catch (UnknownHostException e) { - return null; - } - } - - return localIP; - } - /** - Get name of the host, proxy has assigned to make a remote connection - for this socket. This method is usefull when proxy have returned - address as hostname, and we can't resolve it on this machine. - @return The name of the host proxy is using to make a connection. - */ - public String getLocalHost() { - return localHost; - } - - /** - Same as socket. - */ - public void setSoLinger(boolean on, int val) throws SocketException { - proxy.proxySocket.setSoLinger(on, val); - } - /** - Same as socket. - */ - public int getSoLinger(int timeout) throws SocketException { - return proxy.proxySocket.getSoLinger(); - } - /** - Same as socket. - */ - public void setSoTimeout(int timeout) throws SocketException { - proxy.proxySocket.setSoTimeout(timeout); - } - /** - Same as socket. - */ - public int getSoTimeout(int timeout) throws SocketException { - return proxy.proxySocket.getSoTimeout(); - } - /** - Same as socket. - */ - public void setTcpNoDelay(boolean on) throws SocketException { - proxy.proxySocket.setTcpNoDelay(on); - } - /** - Same as socket. - */ - public boolean getTcpNoDelay() throws SocketException { - return proxy.proxySocket.getTcpNoDelay(); - } - - /** - Get string representation of the socket. - */ - public String toString() { - if (directSock != null) return "Direct connection:" + directSock; - - return ("Proxy:" + proxy + ";" + "addr:" + remoteHost + ",port:" + remotePort - + ",localport:" + localPort); - } - -//Private Methods -////////////////// - - private void doDirect()throws SocksException { - try { - //System.out.println("IP:"+remoteIP+":"+remotePort); - directSock = new Socket(remoteIP, remotePort); - proxy.out = directSock.getOutputStream(); - proxy.in = directSock.getInputStream(); - proxy.proxySocket = directSock; - localIP = directSock.getLocalAddress(); - localPort = directSock.getLocalPort(); - } - catch (IOException io_ex) { - throw new SocksException(Proxy.SOCKS_DIRECT_FAILED, - "Direct connect failed:" + io_ex); - } - } - -} +package net.sourceforge.jsocks; + +import java.net.*; +import java.io.*; + +/** + * SocksSocket tryies to look very similar to normal Socket, + * while allowing connections through the SOCKS4 or 5 proxy. + * To use this class you will have to identify proxy you need + * to use, CProxy class allows you to set default proxy, which + * will be used by all Socks aware sockets. You can also create + * either Socks4Proxy or Socks5Proxy, and use them by passing to the + * appropriate constructors. + * <P> + * Using Socks package can be as easy as that: + * + * <pre><tt> + * + * import Socks.*; + * .... + * + * try{ + * //Specify SOCKS5 proxy + * CProxy.setDefaultProxy("socks-proxy",1080); + * + * //OR you still use SOCKS4 + * //Code below uses SOCKS4 proxy + * //CProxy.setDefaultProxy("socks-proxy",1080,userName); + * + * Socket s = SocksSocket("some.host.of.mine",13); + * readTimeFromSock(s); + * }catch(SocksException sock_ex){ + * //Usually it will turn in more or less meaningfull message + * System.err.println("SocksException:"+sock_ex); + * } + * + * </tt></pre> + *<P> + * However if the need exist for more control, like resolving addresses + * remotely, or using some non-trivial authentication schemes, it can be done. + */ + +public class SocksSocket extends Socket{ + //Data members + protected CProxy proxy; + protected String localHost, remoteHost; + protected InetAddress localIP, remoteIP; + protected int localPort,remotePort; + + private Socket directSock = null; + + /** + * Tryies to connect to given host and port + * using default proxy. If no default proxy speciefied + * it throws SocksException with error code SOCKS_NO_PROXY. + @param host Machine to connect to. + @param port Port to which to connect. + * @see SocksSocket#SocksSocket(CProxy,String,int) + * @see Socks5Proxy#resolveAddrLocally + */ + public SocksSocket(String host,int port) + throws SocksException,UnknownHostException{ + this(CProxy.defaultProxy,host,port); + } + /** + * Connects to host port using given proxy server. + @param p CProxy to use. + @param host Machine to connect to. + @param port Port to which to connect. + @throws UnknownHostException + If one of the following happens: + <ol> + + <li> CProxy settings say that address should be resolved locally, but + this fails. + <li> CProxy settings say that the host should be contacted directly but + host name can't be resolved. + </ol> + @throws SocksException + If one of the following happens: + <ul> + <li> CProxy is is null. + <li> CProxy settings say that the host should be contacted directly but + this fails. + <li> Socks Server can't be contacted. + <li> Authentication fails. + <li> Connection is not allowed by the SOCKS proxy. + <li> SOCKS proxy can't establish the connection. + <li> Any IO error occured. + <li> Any protocol error occured. + </ul> + @throws IOexception if anything is wrong with I/O. + @see Socks5Proxy#resolveAddrLocally + */ + public SocksSocket(CProxy p,String host,int port) + throws SocksException,UnknownHostException{ + + + if(p == null) throw new SocksException(CProxy.SOCKS_NO_PROXY); + //proxy=p; + proxy = p.copy(); + remoteHost = host; + remotePort = port; + if(proxy.isDirect(host)){ + remoteIP = InetAddress.getByName(host); + doDirect(); + } + else + processReply(proxy.connect(host,port)); + } + + + /** + * Tryies to connect to given ip and port + * using default proxy. If no default proxy speciefied + * it throws SocksException with error code SOCKS_NO_PROXY. + @param ip Machine to connect to. + @param port Port to which to connect. + * @see SocksSocket#SocksSocket(CProxy,String,int) + */ + public SocksSocket(InetAddress ip, int port) throws SocksException{ + this(CProxy.defaultProxy,ip,port); + } + + /** + Connects to given ip and port using given CProxy server. + @param p CProxy to use. + @param ip Machine to connect to. + @param port Port to which to connect. + + */ + public SocksSocket(CProxy p,InetAddress ip, int port) throws SocksException{ + if(p == null) throw new SocksException(CProxy.SOCKS_NO_PROXY); + this.proxy = p.copy(); + this.remoteIP = ip; + this.remotePort = port; + this.remoteHost = ip.getHostName(); + if(proxy.isDirect(remoteIP)) + doDirect(); + else + processReply(proxy.connect(ip,port)); + } + + + /** + * These 2 constructors are used by the SocksServerSocket. + * This socket simply overrides remoteHost, remotePort + */ + protected SocksSocket(String host,int port,CProxy proxy){ + this.remotePort = port; + this.proxy = proxy; + this.localIP = proxy.proxySocket.getLocalAddress(); + this.localPort = proxy.proxySocket.getLocalPort(); + this.remoteHost = host; + } + protected SocksSocket(InetAddress ip,int port,CProxy proxy){ + remoteIP = ip; + remotePort = port; + this.proxy = proxy; + this.localIP = proxy.proxySocket.getLocalAddress(); + this.localPort = proxy.proxySocket.getLocalPort(); + remoteHost = remoteIP.getHostName(); + } + + /** + * Same as Socket + */ + public void close() throws IOException{ + if(proxy!= null)proxy.endSession(); + proxy = null; + } + /** + * Same as Socket + */ + public InputStream getInputStream(){ + return proxy.in; + } + /** + * Same as Socket + */ + public OutputStream getOutputStream(){ + return proxy.out; + } + /** + * Same as Socket + */ + public int getPort(){ + return remotePort; + } + /** + * Returns remote host name, it is usefull in cases when addresses + * are resolved by proxy, and we can't create InetAddress object. + @return The name of the host this socket is connected to. + */ + public String getHost(){ + return remoteHost; + } + /** + * Get remote host as InetAddress object, might return null if + * addresses are resolved by proxy, and it is not possible to resolve + * it locally + @return Ip address of the host this socket is connected to, or null + if address was returned by the proxy as DOMAINNAME and can't be + resolved locally. + */ + public InetAddress getInetAddress(){ + if(remoteIP == null){ + try{ + remoteIP = InetAddress.getByName(remoteHost); + }catch(UnknownHostException e){ + return null; + } + } + return remoteIP; + } + + /** + * Get the port assigned by the proxy for the socket, not + * the port on locall machine as in Socket. + @return Port of the socket used on the proxy server. + */ + public int getLocalPort(){ + return localPort; + } + + /** + * Get address assigned by proxy to make a remote connection, + * it might be different from the host specified for the proxy. + * Can return null if socks server returned this address as hostname + * and it can't be resolved locally, use getLocalHost() then. + @return Address proxy is using to make a connection. + */ + public InetAddress getLocalAddress(){ + if(localIP == null){ + try{ + localIP = InetAddress.getByName(localHost); + }catch(UnknownHostException e){ + return null; + } + } + return localIP; + } + /** + Get name of the host, proxy has assigned to make a remote connection + for this socket. This method is usefull when proxy have returned + address as hostname, and we can't resolve it on this machine. + @return The name of the host proxy is using to make a connection. + */ + public String getLocalHost(){ + return localHost; + } + + /** + Same as socket. + */ + public void setSoLinger(boolean on,int val) throws SocketException{ + proxy.proxySocket.setSoLinger(on,val); + } + /** + Same as socket. + */ + public int getSoLinger(int timeout) throws SocketException{ + return proxy.proxySocket.getSoLinger(); + } + /** + Same as socket. + */ + public void setSoTimeout(int timeout) throws SocketException{ + proxy.proxySocket.setSoTimeout(timeout); + } + /** + Same as socket. + */ + public int getSoTimeout(int timeout) throws SocketException{ + return proxy.proxySocket.getSoTimeout(); + } + /** + Same as socket. + */ + public void setTcpNoDelay(boolean on) throws SocketException{ + proxy.proxySocket.setTcpNoDelay(on); + } + /** + Same as socket. + */ + public boolean getTcpNoDelay() throws SocketException{ + return proxy.proxySocket.getTcpNoDelay(); + } + + /** + Get string representation of the socket. + */ + public String toString(){ + if(directSock!=null) return "Direct connection:"+directSock; + return ("Proxy:"+proxy+";"+"addr:"+remoteHost+",port:"+remotePort + +",localport:"+localPort); + + } + +//Private Methods +////////////////// + + private void processReply(ProxyMessage reply)throws SocksException{ + localPort = reply.port; + /* + * If the server have assigned same host as it was contacted on + * it might return an address of all zeros + */ + if(reply.host.equals("0.0.0.0")){ + localIP = proxy.proxyIP; + localHost = localIP.getHostName(); + }else{ + localHost = reply.host; + localIP = reply.ip; + } + } + private void doDirect()throws SocksException{ + try{ + //System.out.println("IP:"+remoteIP+":"+remotePort); + directSock = new Socket(remoteIP,remotePort); + proxy.out = directSock.getOutputStream(); + proxy.in = directSock.getInputStream(); + proxy.proxySocket = directSock; + localIP = directSock.getLocalAddress(); + localPort = directSock.getLocalPort(); + }catch(IOException io_ex){ + throw new SocksException(CProxy.SOCKS_DIRECT_FAILED, + "Direct connect failed:"+io_ex); + } + } + +}