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46 lines
1.7 KiB
Python
46 lines
1.7 KiB
Python
#basic python UDP script
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#for testing only
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import socket
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import random
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UDP_IP = "127.0.0.1"
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UDP_PORT = 5004
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sock = socket.socket(socket.AF_INET, # Internet
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socket.SOCK_DGRAM) # UDP
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sock.bind((UDP_IP, UDP_PORT))
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#our client_id
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client_id = str(''.join(random.choice("abcdefghijklmnopqrstuvwxyz") for x in range(32)))
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print client_id
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a = 1;
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#send ping request to our DHT on localhost.
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sock.sendto("0012345678".decode("hex") + client_id, ('127.0.0.1', 33445))
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#print all packets recieved and respond to ping requests properly
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while True:
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data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes
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print "received message:", data.encode('hex'), " From:", addr
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#if we recieve a ping request.
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print data[0].encode('hex')
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if data[0] == "00".decode('hex'):
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print "Sending ping resp"
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sock.sendto("01".decode('hex') + data[1:5] + client_id, addr)
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#if we recieve a get_nodes request.
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if data[0] == "02".decode('hex'):
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print "Sending getn resp"
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#send send nodes packet with a couple 127.0.0.1 ips and ports.
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#127.0.0.1:5000, 127.0.0.1:5001, 127.0.0.1:5002
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sock.sendto("03".decode('hex') + data[1:5] + client_id + ("HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH" + "7F00000113880000".decode('hex') + "HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH" + "7F00000113890000".decode('hex') + "HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH" + "7F000001138A0000".decode('hex')), addr)
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if data[0] == "10".decode('hex'):
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print "Sending handshake resp"
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sock.sendto("10".decode('hex') + data[1:5] + client_id[:4], addr)
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if data[0] == "11".decode('hex'):
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print "Sending SYNC resp"
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a+=1
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sock.sendto("11".decode('hex') + chr(a) + data[1:9], addr)
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