# UDP dht port snitch. 
#   2021/03/21 - mayton : In beginning

import socket
import bencodepy
import binascii

UDP_IP = "0.0.0.0"
UDP_PORT = 51413

sock = socket.socket(socket.AF_INET, # Internet
                    socket.SOCK_DGRAM) # UDP

sock.bind((UDP_IP, UDP_PORT))

print("Listening ip = ", UDP_IP, " port = ", UDP_PORT)

while True:
    data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes
    try:
       print("Decoded UDP content is : " , bencodepy.decode(data))
    except bencodepy.exceptions.DecodingError as e:
       print("Exception", e.__class__, " Unable to decode UDP data : " ,  binascii.hexlify(data))

Listening ip =  0.0.0.0  port =  51413
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'41001b0e1af1018200000000001000007f770000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'41001b0e1b21aeb500000000001000007f770000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'41001b0e1b7d7deb00000000001000007f770000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100849c35b7c15900000000001000001b800000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100849c35ec987e00000000001000001b800000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100849c364910fd00000000001000001b800000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100daa0527fc16c0000000000100000e2450000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100daa052b23c8c0000000000100000e2450000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100daa0530e38ed0000000000100000e2450000'
Decoded UDP content is :  OrderedDict([(b'a', OrderedDict([(b'id', b'A;\x16\x81m\xbb\xce\x9a\xf4\x98)\xd7\xbay/R\x9e\x9d\xc7]'), (b'info_hash', b'A;(\xfe,3\xc0\x18+\x14\xcf\xa8k\xed8\x98\xd7]\xee\xa1')])), (b'q', b'get_peers'), (b't', b'\xd0<'), (b'v', b'LT\x01,'), (b'y', b'q')])
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100ce3487abec2400000000000000002a8a0000'
Decoded UDP content is :  OrderedDict([(b'a', OrderedDict([(b'id', b'{\xc3\xa7\xd6\xaeR\x90I\xf1\xf1\xbb\xe9\xeb\xb3\xa6\xdb<\x87\x0c\xe1'), (b'target', b'{\xc3\xa7\xd6\xaeR\x90I\xf1\xf1\xbb\xe9\xeb\xb3\xa6\xdb<\x87\x0c\xe1')])), (b'q', b'find_node'), (b't', b'\x82#\x00\x00'), (b'v', b'UT\xb3\x8e'), (b'y', b'q')])
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100d456729737850000000000100000e1790000'
Exception <class 'bencodepy.exceptions.DecodingError'>  Unable to decode UDP data :  b'4100d45672c837960000000000100000e1790000'

        return new DhtListener("Vuze", 16680, "VZ1");
        return new DhtListener("Vuze", 49001, "VZ2");
        return new DhtListener("A-Mule", 4665, "AM1");
        return new DhtListener("A-Mule", 4672, "AM2");
        return new DhtListener("Transm", 51413, "TR1");
        return new DhtListener("Transm", 48529, "TR3");