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annotate src/net/sourceforge/jsocks/UserPasswordAuthentication.java @ 434:7ea898484623
Added tag stable-1.9.1 for changeset 3e25a713555d
author | Carl Byington <carl@five-ten-sg.com> |
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date | Mon, 09 Mar 2015 16:33:11 -0700 |
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1 package net.sourceforge.jsocks; |
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2 |
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3 /** |
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4 SOCKS5 User Password authentication scheme. |
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5 */ |
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6 public class UserPasswordAuthentication implements Authentication{ |
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7 |
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8 /**SOCKS ID for User/Password authentication method*/ |
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9 public final static int METHOD_ID = 2; |
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10 |
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11 String userName, password; |
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12 byte[] request; |
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13 |
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14 /** |
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15 Create an instance of UserPasswordAuthentication. |
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16 @param userName User Name to send to SOCKS server. |
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17 @param password Password to send to SOCKS server. |
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18 */ |
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19 public UserPasswordAuthentication(String userName,String password){ |
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20 this.userName = userName; |
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21 this.password = password; |
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22 formRequest(); |
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23 } |
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24 /** Get the user name. |
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25 @return User name. |
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26 */ |
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27 public String getUser(){ |
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28 return userName; |
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29 } |
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30 /** Get password |
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31 @return Password |
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32 */ |
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33 public String getPassword(){ |
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34 return password; |
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35 } |
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36 /** |
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37 Does User/Password authentication as defined in rfc1929. |
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38 @return An array containnig in, out streams, or null if authentication |
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39 fails. |
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40 */ |
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41 public Object[] doSocksAuthentication(int methodId, |
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42 java.net.Socket proxySocket) |
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43 throws java.io.IOException{ |
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44 |
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45 if(methodId != METHOD_ID) return null; |
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46 |
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47 java.io.InputStream in = proxySocket.getInputStream(); |
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48 java.io.OutputStream out = proxySocket.getOutputStream(); |
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49 |
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50 out.write(request); |
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51 int version = in.read(); |
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52 if(version < 0) return null; //Server closed connection |
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53 int status = in.read(); |
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54 if(status != 0) return null; //Server closed connection, or auth failed. |
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55 |
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56 return new Object[] {in,out}; |
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57 } |
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58 |
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59 //Private methods |
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60 ////////////////// |
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61 |
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62 /** Convert UserName password in to binary form, ready to be send to server*/ |
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63 private void formRequest(){ |
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64 byte[] user_bytes = userName.getBytes(); |
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65 byte[] password_bytes = password.getBytes(); |
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66 |
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67 request = new byte[3+user_bytes.length+password_bytes.length]; |
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68 request[0] = (byte) 1; |
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69 request[1] = (byte) user_bytes.length; |
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70 System.arraycopy(user_bytes,0,request,2,user_bytes.length); |
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71 request[2+user_bytes.length] = (byte) password_bytes.length; |
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72 System.arraycopy(password_bytes,0, |
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73 request,3+user_bytes.length,password_bytes.length); |
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74 } |
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75 } |