mirror of
https://github.com/adulau/netbeacon.git
synced 2024-11-21 17:47:07 +00:00
63 lines
1.6 KiB
Python
63 lines
1.6 KiB
Python
import socket
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import datetime
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import time
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from optparse import OptionParser
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try:
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from hashlib import sha1
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except ImportError:
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from sha import sha as sha1
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import hmac
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## nb;epochvalue;sq;hmac
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## hmacfunc("nb;epochvalue;sq;", psk)
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def nbsign(message=None, psk="netbeacon"):
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auth = hmac.new(psk, message, sha1)
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return auth.hexdigest()
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# format: nb;1354687980;1;500f5e18df881bb1dd22ee3c468209669a13e4ef
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def nbmessage(seq=1):
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m = ""
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m = m + "nb"
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m = m + ";"
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t = datetime.datetime.now()
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now = time.mktime(t.timetuple())
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m = m + (str(int(now)))
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m = m + ";"
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m = m + str(seq)
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m = m + ";"
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m = m + nbsign(message=m)
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return m
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def nbsend(destination=None,payload=None, logging=False):
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if destination is None:
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return False
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if logging:
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print (payload)
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
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sock.sendto(payload, (destination, 12345))
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return True
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usage = "usage: %prog [options] <netbeacon messages>"
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parser = OptionParser(usage)
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parser.add_option("-s","--storeseq", dest="storeseq", action='store_true', help="store sequence and validate sequence")
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(options, args) = parser.parse_args()
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if options.storeseq:
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import shelve
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s = shelve.open("netbeacon-send.seq")
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if 'seq' not in s:
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s['seq'] = 1
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seqstart = s['seq']
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else:
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seqstart = s['seq']
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else:
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seqstart = 1
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for x in range(seqstart,seqstart+10):
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nbsend(destination="127.0.0.1", payload=nbmessage(x), logging=True)
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if options.storeseq:
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s['seq'] = x
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if options.storeseq:
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s.close()
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