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Stem out even if we only have 1 peer

This commit is contained in:
Kevin F 2022-06-14 11:00:08 -05:00
parent cdccde2d9d
commit ac88e0a1da
1 changed files with 7 additions and 4 deletions
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11
src/gossip/client/dandelionstem/__init__.py
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@ -81,6 +81,7 @@ async def stem_out(d_phase: 'DandelionPhase'):
if not len(gossip_peer_set): if not len(gossip_peer_set):
sleep(1) sleep(1)
return return
not_enough_edges = False
# Spawn threads with deep copied block queue to add to db after time # Spawn threads with deep copied block queue to add to db after time
# for black hole attack # for black hole attack
@ -96,15 +97,17 @@ async def stem_out(d_phase: 'DandelionPhase'):
# Using orderedset for the tried edges to ensure random pairing with queue # Using orderedset for the tried edges to ensure random pairing with queue
tried_edges: "OrderedSet[Peer]" = OrderedSet() tried_edges: "OrderedSet[Peer]" = OrderedSet()
while len(peer_sockets) < OUTBOUND_DANDELION_EDGES: while len(peer_sockets) < OUTBOUND_DANDELION_EDGES or not_enough_edges:
try: try:
# Get a socket for stem out (makes sure they accept) # Get a socket for stem out (makes sure they accept)
peer_sockets.append(await _setup_edge(gossip_peer_set, tried_edges)) peer_sockets.append(await _setup_edge(gossip_peer_set, tried_edges))
except NotEnoughEdges: except NotEnoughEdges:
# No possible edges at this point (edges < OUTBOUND_DANDELION_EDGE) # No possible edges at this point (edges < OUTBOUND_DANDELION_EDGE)
logger.warn("Not able to build enough tunnels for stemout.", logger.warn(
terminal=True) "Making too few edges for stemout " +
break "this is bad for anonymity if frequent."
terminal=True)
not_enough_edges = True
else: else:
# Ran out of time for stem phase # Ran out of time for stem phase
if not d_phase.is_stem_phase() or d_phase.remaining_time() < 5: if not d_phase.is_stem_phase() or d_phase.remaining_time() < 5: