private Hash getHash(String name) {
String key = name.substring(PREFIX.length());
key = key.substring(0, 44);
// Hash h = new Hash();
try {
// h.fromBase64(key);
byte[] b = Base64.decode(key);
if (b == null) return null;
Hash h = Hash.create(b);
return h;
} catch (Exception dfe) {
_log.warn("Invalid base64 [" + key + "]", dfe);
return null;
}
}
@Override
protected void doReadMessage(InputStream in, int size) throws I2CPMessageException, IOException {
try {
_sessionId = new SessionId();
_sessionId.readBytes(in);
int numTunnels = (int) DataHelper.readLong(in, 1);
_endpoints.clear();
for (int i = 0; i < numTunnels; i++) {
// Hash router = new Hash();
// router.readBytes(in);
Hash router = Hash.create(in);
TunnelId tunnel = new TunnelId();
tunnel.readBytes(in);
_endpoints.add(new TunnelEndpoint(router, tunnel));
}
_end = DataHelper.readDate(in);
} catch (DataFormatException dfe) {
throw new I2CPMessageException("Unable to load the message data", dfe);
}
}
/** Base64 Hash or Hash.i2p or name.i2p using naming service */
Destination getDestination(String ip) {
if (ip == null) return null;
if (ip.endsWith(".i2p")) {
if (ip.length() < 520) { // key + ".i2p"
if (_manager != null && ip.length() == BASE32_HASH_LENGTH + 8 && ip.endsWith(".b32.i2p")) {
// Use existing I2PSession for b32 lookups if we have it
// This is much more efficient than using the naming service
I2PSession sess = _manager.getSession();
if (sess != null) {
byte[] b = Base32.decode(ip.substring(0, BASE32_HASH_LENGTH));
if (b != null) {
// Hash h = new Hash(b);
Hash h = Hash.create(b);
if (_log.shouldLog(Log.INFO)) _log.info("Using existing session for lookup of " + ip);
try {
return sess.lookupDest(h, 15 * 1000);
} catch (I2PSessionException ise) {
}
}
}
}
if (_log.shouldLog(Log.INFO)) _log.info("Using naming service for lookup of " + ip);
return _context.namingService().lookup(ip);
}
if (_log.shouldLog(Log.INFO)) _log.info("Creating Destination for " + ip);
try {
return new Destination(ip.substring(0, ip.length() - 4)); // sans .i2p
} catch (DataFormatException dfe) {
return null;
}
} else {
if (_log.shouldLog(Log.INFO)) _log.info("Creating Destination for " + ip);
try {
return new Destination(ip);
} catch (DataFormatException dfe) {
return null;
}
}
}