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annotate src/net/sourceforge/jsocks/SocksException.java @ 384:b919cd3d6e2f

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author Carl Byington <carl@five-ten-sg.com>
date Wed, 06 Aug 2014 11:34:32 -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 Exception thrown by various socks classes to indicate errors
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5 with protocol or unsuccessfull server responses.
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6 */
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7 public class SocksException extends java.io.IOException{
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8 /**
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9 Construct a SocksException with given errorcode.
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10 <p>
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11 Tries to look up message which corresponds to this error code.
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12 @param errCode Error code for this exception.
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13 */
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14 public SocksException(int errCode){
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15 this.errCode = errCode;
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16 if((errCode >> 16) == 0){
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17 //Server reply error message
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18 errString = errCode <= serverReplyMessage.length ?
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19 serverReplyMessage[errCode] :
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20 UNASSIGNED_ERROR_MESSAGE;
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21 }else{
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22 //Local error
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23 errCode = (errCode >> 16) -1;
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24 errString = errCode <= localErrorMessage.length ?
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25 localErrorMessage[errCode] :
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26 UNASSIGNED_ERROR_MESSAGE;
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27 }
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28 }
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29 /**
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30 Constructs a SocksException with given error code and message.
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31 @param errCode Error code.
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32 @param errString Error Message.
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33 */
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34 public SocksException(int errCode,String errString){
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35 this.errCode = errCode;
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36 this.errString = errString;
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37 }
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38 /**
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39 Get the error code associated with this exception.
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40 @return Error code associated with this exception.
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41 */
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42 public int getErrorCode(){
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43 return errCode;
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44 }
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45 /**
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46 Get human readable representation of this exception.
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47 @return String represntation of this exception.
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48 */
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49 public String toString(){
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50 return errString;
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51 }
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52
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53 static final String UNASSIGNED_ERROR_MESSAGE =
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54 "Unknown error message";
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55 static final String serverReplyMessage[] = {
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56 "Succeeded",
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57 "General SOCKS server failure",
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58 "Connection not allowed by ruleset",
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59 "Network unreachable",
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60 "Host unreachable",
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61 "Connection refused",
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62 "TTL expired",
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63 "Command not supported",
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64 "Address type not supported" };
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65
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66 static final String localErrorMessage[] ={
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67 "SOCKS server not specified",
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68 "Unable to contact SOCKS server",
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69 "IO error",
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70 "None of Authentication methods are supported",
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71 "Authentication failed",
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72 "General SOCKS fault" };
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73
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74 String errString;
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75 public int errCode;
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76
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77 }//End of SocksException class
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