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Fixed typo

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This commit is contained in:
Mark Qvist 2021-05-15 10:57:54 +02:00
parent a60e4fc5f1
commit 43de693f01
7 changed files with 59 additions and 11 deletions
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40
RNS/Transport.py
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@ -56,6 +56,7 @@ class Transport:
reverse_table = {} # A lookup table for storing packet hashes used to return proofs and replies
link_table = {} # A lookup table containing hops for links
held_announces = {} # A table containing temporarily held announce-table entries
announce_handlers = [] # A table storing externally registered announce handlers
# Transport control destinations are used
# for control purposes like path requests
@ -749,7 +750,33 @@ class Transport:
Transport.destination_table[packet.destination_hash] = [now, received_from, announce_hops, expires, random_blobs, packet.receiving_interface, packet]
RNS.log("Path to "+RNS.prettyhexrep(packet.destination_hash)+" is now "+str(announce_hops)+" hops away via "+RNS.prettyhexrep(received_from)+" on "+str(packet.receiving_interface), RNS.LOG_VERBOSE)
# Call externally registered callbacks from apps
# wanting to know when an announce arrives
for handler in Transport.announce_handlers:
try:
# Check that the announced destination matches
# the handlers aspect filter
execute_callback = False
if handler.aspect_filter == None:
# If the handlers aspect filter is set to
# None, we execute the callback in all cases
execute_callback = True
else:
announce_identity = RNS.Identity.recall(packet.destination_hash)
handler_expected_hash = RNS.Destination.hash_from_name_and_identity(handler.aspect_filter, announce_identity)
if packet.destination_hash == handler_expected_hash:
execute_callback = True
if execute_callback:
handler.received_announce(
destination_hash=packet.destination_hash,
announced_identity=announce_identity,
app_data=RNS.Identity.recall_app_data(packet.destination_hash)
)
except Exception as e:
RNS.log("Error while processing external announce callback.", RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
# Handling for linkrequests to local destinations
elif packet.packet_type == RNS.Packet.LINKREQUEST:
for destination in Transport.destinations:
@ -878,6 +905,17 @@ class Transport:
else:
RNS.log("Attempted to activate a link that was not in the pending table", RNS.LOG_ERROR)
@staticmethod
def register_announce_handler(handler):
if hasattr(handler, "received_announce") and callable(handler.received_announce):
if hasattr(handler, "aspect_filter"):
Transport.announce_handlers.append(handler)
@staticmethod
def deregister_announce_handler(handler):
while handler in Transport.announce_handlers:
Transport.announce_handlers.remove(handler)
@staticmethod
def find_interface_from_hash(interface_hash):
for interface in Transport.interfaces: