📄 btpeeridbytedecoder.java
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}
String mldonkey = new String(peerID, 1, 2, Constants.BYTE_ENCODING);
if (mldonkey.equals("ML")) {
String name = "mldonkey ";
String v1 = new String(peerID, 3, 1, Constants.BYTE_ENCODING);
String v2 = new String(peerID, 5, 1, Constants.BYTE_ENCODING);
String v3 = new String(peerID, 7, 1, Constants.BYTE_ENCODING);
return name + v1 + "." + v2 + "." + v3;
}
iFirstNonZeroPos = 20;
for( int i=0; i < 20; i++ ) {
if( peerID[i] != (byte)0 ) {
iFirstNonZeroPos = i;
break;
}
}
//Shareaza check
if( iFirstNonZeroPos == 0 ) {
boolean bShareaza = true;
for( int i=0; i < 16; i++ ) {
if( peerID[i] == (byte)0 ) {
bShareaza = false;
break;
}
}
if( bShareaza ) {
for( int i=16; i < 20; i++ ) {
if( peerID[i] != ( peerID[i % 16] ^ peerID[15 - (i % 16)] ) ) {
bShareaza = false;
break;
}
}
if( bShareaza ) return "Shareaza";
}
}
// if( iFirstNonZeroPos == 8 ) {
if( (decoded = decodeSimpleStyle( peerID, 16, "UDP0", "BitComet UDP" )) != null ) return decoded;
if( (decoded = decodeSimpleStyle( peerID, 14, "HTTPBT", "BitComet HTTP" )) != null ) return decoded;
// }
byte three = (byte)3;
if ((iFirstNonZeroPos == 9)
&& (peerID[9] == three)
&& (peerID[10] == three)
&& (peerID[11] == three)) {
return "Snark";
}
if ((iFirstNonZeroPos == 12) && (peerID[12] == (byte)97) && (peerID[13] == (byte)97)) {
return "Experimental 3.2.1b2";
}
if ((iFirstNonZeroPos == 12) && (peerID[12] == (byte)0) && (peerID[13] == (byte)0)) {
return "Experimental 3.1";
}
if (iFirstNonZeroPos == 12) return "Mainline";
}
catch (Exception e) {
e.printStackTrace();
Debug.out( "[" +new String( peerID )+ "]", e );
}
if (LOG_UNKNOWN) {
try {
log = new FileWriter( logFile, true );
String text = new String(peerID, 0, 20, Constants.BYTE_ENCODING);
text = text.replace((char)12, (char)32);
text = text.replace((char)10, (char)32);
log.write("[" + text + "] ");
for (int i=0; i < 20; i++) {
log.write(i+"=" + peerID[i] + " ");
}
log.write("\n");
}
catch (Exception e) {
Debug.out(e.toString());
}
finally {
try {
if (log != null) log.close();
}
catch (IOException ignore) {/*ignore*/}
}
}
String sPeerID = getPrintablePeerID( peerID, iFirstNonZeroPos );
return MessageText.getString("PeerSocket.unknown") + " " + iFirstNonZeroPos +"[" + sPeerID + "]";
}
private static String decodeAzStyle( byte[] id, String ident, String name ) {
try {
if( (id[0] == (byte)45) && (id[7] == (byte)45) ) {
String decoded = new String( id, 1, 2, Constants.BYTE_ENCODING );
if( decoded.equals( ident ) ) {
if( ident.equals( "BC" ) ) {
String v2 = new String( id, 4, 1, Constants.BYTE_ENCODING );
String v3 = new String( id, 5, 1, Constants.BYTE_ENCODING );
String v4 = new String( id, 6, 1, Constants.BYTE_ENCODING );
return name + " " + v2 + "." + v3 + v4;
}
if( ident.equals( "KT") ) {
String v2 = new String( id, 3, 1, Constants.BYTE_ENCODING );
String v3 = new String( id, 4, 1, Constants.BYTE_ENCODING );
String v4 = new String( id, 5, 1, Constants.BYTE_ENCODING );
String v5 = new String( id, 6, 1, Constants.BYTE_ENCODING );
return name + " " + v2 + "." + v3 + ( v4.equals("R") ? (" RC" + v5) : ( v4.equals("D") ? " Dev":"" ) );
}
if( ident.equals( "UT") ) {
String v2 = new String( id, 3, 1, Constants.BYTE_ENCODING );
String v3 = new String( id, 4, 1, Constants.BYTE_ENCODING );
String v4 = new String( id, 5, 1, Constants.BYTE_ENCODING );
return name + " " + v2 + "." + v3 + "." + v4;
}
if( ident.equals( "TR") ) {
String v2 = new String( id, 3, 2, Constants.BYTE_ENCODING );
String v3 = new String( id, 5, 2, Constants.BYTE_ENCODING );
return name + " " + Integer.parseInt(v2) + "." + Integer.parseInt(v3);
}
String v1 = new String( id, 3, 1, Constants.BYTE_ENCODING );
String v2 = new String( id, 4, 1, Constants.BYTE_ENCODING );
String v3 = new String( id, 5, 1, Constants.BYTE_ENCODING );
String v4 = new String( id, 6, 1, Constants.BYTE_ENCODING );
return name + " " + v1 + "." + v2 + "." + v3 + "." + v4;
}
}
}
catch( Exception e ) { return null; }
return null;
}
private static String decodeTornadoStyle( byte[] id, String ident, String name ) {
try {
if( (id[4] == (byte)45) && (id[5] == (byte)45) ) {
if( (id[6] == (byte)45) && (id[7] == (byte)45) && (id[8] == (byte)45)) {
String decoded = new String( id, 0, 1, Constants.BYTE_ENCODING );
if( decoded.equals( ident ) ) {
int v1 = Integer.parseInt( new String( id, 1, 1, Constants.BYTE_ENCODING ), 16 );
int v2 = Integer.parseInt( new String( id, 2, 1, Constants.BYTE_ENCODING ), 16 );
int v3 = Integer.parseInt( new String( id, 3, 1, Constants.BYTE_ENCODING ), 16 );
return name + " " + v1 + "." + v2 + "." + v3;
}
}
if( (id[6] == (byte)48) ) {
String decoded = new String( id, 0, 1, Constants.BYTE_ENCODING );
if( decoded.equals( ident ) ) {
int v1 = Integer.parseInt( new String( id, 1, 1, Constants.BYTE_ENCODING ), 16 );
int v2 = Integer.parseInt( new String( id, 2, 1, Constants.BYTE_ENCODING ), 16 );
int v3 = Integer.parseInt( new String( id, 3, 1, Constants.BYTE_ENCODING ), 16 );
if(ident.equals("T")){
return name + " LM" + " " + v1 + "." + v2 + "." + v3;
} else {
return name + " " + v1 + "." + v2 + "." + v3;
}
}
}
}
if( (id[4] == (byte)48) && (id[5] == (byte)45) && (id[6] == (byte)45) ) {
String decoded = new String( id, 0, 1, Constants.BYTE_ENCODING );
if( decoded.equals( ident ) ) {
return "TorrentFlux";
}
}
}
catch( Exception e ) { return null; }
return null;
}
private static String decodeSimpleStyle( byte[] id, int start_pos, String ident, String name ) {
try {
String decoded = new String( id, start_pos, ident.length(), Constants.BYTE_ENCODING );
if( decoded.equals( ident ) ) return name;
}
catch( Exception e ) { return null; }
return null;
}
private static String decodeMainlineStyle( byte[] id, String ident, String name ) {
try {
if ( (id[2] == (byte)45) && (id[4] == (byte)45) && (id[6] == (byte)45) && (id[7] == (byte)45) ) {
String decoded = new String( id, 0, 1, Constants.BYTE_ENCODING );
if( decoded.equals( ident ) ) {
String v1 = new String( id, 1, 1, Constants.BYTE_ENCODING );
String v2 = new String( id, 3, 1, Constants.BYTE_ENCODING );
String v3 = new String( id, 5, 1, Constants.BYTE_ENCODING );
return name + " " + v1 + "." + v2 + "." + v3;
}
}
}
catch( Exception e ) { return null; }
return null;
}
protected static String
getPrintablePeerID(
byte[] peer_id,
int iStartAtPos )
{
String sPeerID = "";
byte[] peerID = new byte[ peer_id.length ];
System.arraycopy( peer_id, 0, peerID, 0, peer_id.length );
try {
for (int i = iStartAtPos; i < peerID.length; i++) {
int b = (0xFF & peerID[i]);
if (b < 32 || b > 127)
peerID[i] = '-';
}
sPeerID = new String(peerID, iStartAtPos, peerID.length - iStartAtPos,
Constants.BYTE_ENCODING);
}
catch (UnsupportedEncodingException ignore) {}
catch (Exception e) {}
return( sPeerID );
}
}
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