510Connectbot: src/net/sourceforge/jsocks/server/Ident.java annotate

author	Carl Byington <carl@five-ten-sg.com>
date	Fri, 01 Aug 2014 11:23:10 -0700
parents
children	72de889ecfe7

rev	line source
349 205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	1 package socks.server;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	2 import net.sourceforge.jsocks.*;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	3 import java.net.*;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	4 import java.io.*;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	5 import java.util.StringTokenizer;
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 Class Ident provides means to obtain user name of the owner of the socket
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	9 on remote machine, providing remote machine runs identd daemon.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	10 <p>
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	11 To use it:
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	12 <tt><pre>
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	13 Socket s = ss.accept();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	14 Ident id = new Ident(s);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	15 if(id.successful) goUseUser(id.userName);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	16 else handleIdentError(id.errorCode,id.errorMessage)
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	17 </pre></tt>
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	18 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	19 public class Ident{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	20
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	21 /** Error Message can be null.*/
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	22 public String errorMessage;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	23 /** Host type as returned by daemon, can be null, if error happened*/
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	24 public String hostType;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	25 /** User name as returned by the identd daemon, or null, if it failed*/
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	26 public String userName;
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 /** If this is true then userName and hostType contain valid values.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	29 Else errorCode contain the error code, and errorMessage contains
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	30 the corresponding message.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	31 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	32 public boolean successful;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	33 /** Error code*/
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	34 public int errorCode;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	35 /** Identd on port 113 can't be contacted*/
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	36 public static final int ERR_NO_CONNECT = 1;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	37 /** Connection timed out*/
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	38 public static final int ERR_TIMEOUT = 2;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	39 /** Identd daemon responded with ERROR, in this case errorMessage
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	40 contains the string explanation, as send by the daemon.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	41 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	42 public static final int ERR_PROTOCOL = 3;
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 When parsing server response protocol error happened.
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 public static final int ERR_PROTOCOL_INCORRECT = 4;
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
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	49 /** Maximum amount of time we should wait before dropping the
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	50 connection to identd server.Setting it to 0 implies infinit
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	51 timeout.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	52 */
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	53 public static final int connectionTimeout = 10000;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	54
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	55
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 Constructor tries to connect to Identd daemon on the host of the
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	58 given socket, and retrieve user name of the owner of given socket
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	59 connection on remote machine. After constructor returns public
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	60 fields are initialised to whatever the server returned.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	61 <p>
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	62 If user name was successfully retrieved successful is set to true,
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	63 and userName and hostType are set to whatever server returned. If
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	64 however for some reason user name was not obtained, successful is set
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	65 to false and errorCode contains the code explaining the reason of
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	66 failure, and errorMessage contains human readable explanation.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	67 <p>
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	68 Constructor may block, for a while.
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	69 @param s Socket whose ownership on remote end should be obtained.
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 public Ident(Socket s ){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	72 Socket sock = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	73 successful = false; //We are pessimistic
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	74
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	75 try{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	76 sock = new Socket(s.getInetAddress(),113);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	77 sock.setSoTimeout(connectionTimeout);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	78 byte[] request = (""+s.getPort()+" , "+
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	79 s.getLocalPort()+"\r\n").getBytes();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	80
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	81 sock.getOutputStream().write(request);
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 BufferedReader in = new BufferedReader(
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	84 new InputStreamReader(sock.getInputStream()));
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 parseResponse(in.readLine());
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	87
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	88 }catch(InterruptedIOException iioe){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	89 errorCode = ERR_TIMEOUT;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	90 errorMessage = "Connection to identd timed out.";
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	91 }catch(ConnectException ce){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	92 errorCode = ERR_NO_CONNECT;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	93 errorMessage = "Connection to identd server failed.";
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	94
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	95 }catch(IOException ioe){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	96 errorCode = ERR_NO_CONNECT;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	97 errorMessage = ""+ioe;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	98 }finally{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	99 try{ if(sock!=null) sock.close();}catch(IOException ioe){};
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 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	102
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	103 private void parseResponse(String response){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	104 if(response == null){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	105 errorCode = ERR_PROTOCOL_INCORRECT;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	106 errorMessage = "Identd server closed connection.";
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	107 return;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	108 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	109
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	110 StringTokenizer st = new StringTokenizer(response,":");
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	111 if(st.countTokens() < 3){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	112 errorCode = ERR_PROTOCOL_INCORRECT;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	113 errorMessage = "Can't parse server response.";
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	114 return;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	115 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	116
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	117 st.nextToken(); //Discard first token, it's basically what we have send
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	118 String command = st.nextToken().trim().toUpperCase();
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 if(command.equals("USERID") && st.countTokens() >= 2){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	121 successful = true;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	122 hostType = st.nextToken().trim();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	123 userName = st.nextToken("").substring(1);//Get all that is left
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	124 }else if(command.equals("ERROR")){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	125 errorCode = ERR_PROTOCOL;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	126 errorMessage = st.nextToken();
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	127 }else{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	128 errorCode = ERR_PROTOCOL_INCORRECT;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	129 System.out.println("Opa!");
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	130 errorMessage = "Can't parse server response.";
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
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	133
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 ///////////////////////////////////////////////
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	137 //USED for Testing
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	138 /*
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	139 public static void main(String[] args) throws IOException{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	140
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	141 Socket s = null;
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	142 s = new Socket("gp101-16", 1391);
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 Ident id = new Ident(s);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	145 if(id.successful){
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	146 System.out.println("User: "+id.userName);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	147 System.out.println("HostType: "+id.hostType);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	148 }else{
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	149 System.out.println("ErrorCode: "+id.errorCode);
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	150 System.out.println("ErrorMessage: "+id.errorMessage);
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 }
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	153
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	154 if(s!= null) s.close();
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 //*/
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	157
205ee2873330 update jsocks to 2011-03-19 Carl Byington <carl@five-ten-sg.com> parents: diff changeset	158 }

349

205ee2873330 update jsocks to 2011-03-19