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29 lines
822 B
Python
29 lines
822 B
Python
#!/usr/bin/env python
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# functions common to the various kinds of daemon
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# TODO: define a log function that sends a pubsub message to the
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# logger daemon
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import time, binascii
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from Crypto import Random
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def signal_handler(a, b):
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global clean_shutdown
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clean_shutdown = True
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r.publish("exit", "clean-exit")
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r.lpush("exit", "clean-exit")
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def short(session):
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"""Return the first 12 bytes of a session ID, or, for a
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challenge ID, the challenge ID with the session ID truncated."""
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tmp = session.partition(":")
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return tmp[0][:12] + "..." + tmp[1] + tmp[2]
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def random():
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"""Return 64 hex digits representing a new 32-byte random number."""
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return binascii.hexlify(Random.get_random_bytes(32))
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def random_raw():
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"""Return 32 random bytes."""
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return Random.get_random_bytes(32)
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