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Pre-emptively request unknown paths for opportunistic messages

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This commit is contained in:
Mark Qvist 2024-09-17 13:18:16 +02:00
parent cf6fc4a510
commit e1a56be5c1
1 changed files with 23 additions and 5 deletions
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28
LXMF/LXMRouter.py
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@ -276,6 +276,10 @@ class LXMRouter:
else:
return None
def set_active_propagation_node(self, destination_hash):
self.set_outbound_propagation_node(destination_hash)
# self.set_inbound_propagation_node(destination_hash)
def set_outbound_propagation_node(self, destination_hash):
if len(destination_hash) != RNS.Identity.TRUNCATED_HASHLENGTH//8 or type(destination_hash) != bytes:
raise ValueError("Invalid destination hash for outbound propagation node")
@ -289,6 +293,13 @@ class LXMRouter:
def get_outbound_propagation_node(self):
return self.outbound_propagation_node
def set_inbound_propagation_node(self, destination_hash):
# TODO: Implement
raise NotImplementedError("Inbound/outbound propagation node differentiation is currently not implemented")
def get_inbound_propagation_node(self):
return self.get_outbound_propagation_node()
def set_retain_node_lxms(self, retain):
if retain == True:
self.retain_synced_on_node = True
@ -1195,6 +1206,7 @@ class LXMRouter:
def handle_outbound(self, lxmessage):
destination_hash = lxmessage.get_destination().hash
if lxmessage.stamp_cost == None:
if destination_hash in self.outbound_stamp_costs:
stamp_cost = self.outbound_stamp_costs[destination_hash][1]
@ -1220,10 +1232,13 @@ class LXMRouter:
if not lxmessage.packed:
lxmessage.pack()
lxmessage.determine_transport_encryption()
unknown_path_requested = False
if not RNS.Transport.has_path(destination_hash) and lxmessage.method == LXMessage.OPPORTUNISTIC:
RNS.log(f"Pre-emptively requesting unknown path for opportunistic {lxmessage}", RNS.LOG_DEBUG)
RNS.Transport.request_path(destination_hash)
unknown_path_requested = True
while self.processing_outbound:
time.sleep(0.1)
lxmessage.determine_transport_encryption()
if lxmessage.defer_stamp and lxmessage.stamp_cost == None:
RNS.log(f"Deferred stamp generation was requested for {lxmessage}, but no stamp is required, processing immediately", RNS.LOG_DEBUG)
@ -1231,7 +1246,10 @@ class LXMRouter:
if not lxmessage.defer_stamp:
self.pending_outbound.append(lxmessage)
self.process_outbound()
if not unknown_path_requested:
while self.processing_outbound:
time.sleep(0.05)
self.process_outbound()
else:
self.pending_deferred_stamps[lxmessage.message_id] = lxmessage
@ -1783,7 +1801,7 @@ class LXMRouter:
RNS.Transport.request_path(lxmessage.get_destination().hash)
lxmessage.next_delivery_attempt = time.time() + LXMRouter.PATH_REQUEST_WAIT
lxmessage.progress = 0.00
elif lxmessage.delivery_attempts == LXMRouter.MAX_PATHLESS_TRIES+2 and RNS.Transport.has_path(lxmessage.get_destination().hash):
elif lxmessage.delivery_attempts == LXMRouter.MAX_PATHLESS_TRIES+3 and RNS.Transport.has_path(lxmessage.get_destination().hash):
RNS.log(f"Opportunistic delivery for {lxmessage} still unsuccessful after {lxmessage.delivery_attempts} attempts, trying to update path to {RNS.prettyhexrep(lxmessage.get_destination().hash)}", RNS.LOG_DEBUG)
lxmessage.delivery_attempts += 1
RNS.Transport.request_path(lxmessage.get_destination().hash)