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Cleanup and echo example

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Mark Qvist 2018-04-04 10:35:21 +02:00
parent e66622bd69
commit cfb1ed84d2
4 changed files with 41 additions and 28 deletions
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58
FPE/Utilities/Echo.py
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@ -179,31 +179,55 @@ def client(destination_hexhash, configpath):
# user to wait for an announce to arrive.
FPE.log("Destination is not yet known. Wait for an announce to arrive.")
# This method is called when our reply destination
# receives a proof packet.
def clientProofCallback(proof_packet):
# We save the current time so we can calculate
# round-trip time for the packet
now = time.time()
# Let's look through our list of sent requests,
# and see if we can find one that matches the
# proof we just received.
for unproven_packet in sent_requests:
if unproven_packet.packet_hash == proof_packet.data[:32]:
if unproven_packet.validateProofPacket(proof_packet):
rtt = now - unproven_packet.sent_at
if (rtt >= 1):
rtt = round(rtt, 3)
rttstring = str(rtt)+" seconds"
try:
# Check that the proof hash matches the
# hash of the packet we sent earlier
if unproven_packet.packet_hash == proof_packet.data[:32]:
# We need to actually calidate the proof.
# This is simply done by calling the
# validateProofPacket method on the packet
# we sent earlier.
if unproven_packet.validateProofPacket(proof_packet):
# If the proof is valid, we will calculate
# the round-trip time, and inform the user.
rtt = now - unproven_packet.sent_at
if (rtt >= 1):
rtt = round(rtt, 3)
rttstring = str(rtt)+" seconds"
else:
rtt = round(rtt*1000, 3)
rttstring = str(rtt)+" milliseconds"
FPE.log(
"Valid echo reply, proved by "+FPE.prettyhexrep(unproven_packet.destination.hash)+
", round-trip time was "+rttstring
)
# Perform some cleanup
sent_requests.remove(unproven_packet)
del unproven_packet
else:
rtt = round(rtt*1000, 3)
rttstring = str(rtt)+" milliseconds"
FPE.log(
"Valid echo reply, proved by "+FPE.prettyhexrep(unproven_packet.destination.hash)+
", round-trip time was "+rttstring
)
sent_requests.remove(unproven_packet)
del unproven_packet
else:
FPE.log("Proof invalid")
# If the proof was invalid, we inform
# the user of this.
FPE.log("Echo reply received, but proof was invalid")
except:
FPE.log("Proof packet received, but packet contained invalid or unparsable data")
if __name__ == "__main__":
# Set up command line arguments and start
# the selected program mode.
try:
parser = argparse.ArgumentParser(description="Simple echo server and client utility")
parser.add_argument("-s", "--server", action="store_true", help="wait for incoming packets from clients")