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if channel_update for our channel is missing, fill invoice with zeroes

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SomberNight 2018-10-16 21:37:57 +02:00 • committed by ThomasV
parent 2e5552816c
commit 25c2657680
1 changed files with 19 additions and 6 deletions
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25
electrum/lnworker.py
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@ -343,14 +343,27 @@ class LNWorker(PrintError):
chan_id = chan.short_channel_id chan_id = chan.short_channel_id
assert type(chan_id) is bytes, chan_id assert type(chan_id) is bytes, chan_id
channel_info = self.channel_db.get_channel_info(chan_id) channel_info = self.channel_db.get_channel_info(chan_id)
if not channel_info: continue # note: as a fallback, if we don't have a channel update for the
policy = channel_info.get_policy_for_node(chan.node_id) # incoming direction of our private channel, we fill the invoice with zeroes.
if not policy: continue # the sender should still be able to pay us, but will incur an extra round trip
# (they will get the channel update from the onion error)
fee_base_msat = fee_proportional_millionths = cltv_expiry_delta = 0
missing_info = True
if channel_info:
policy = channel_info.get_policy_for_node(chan.node_id)
if policy:
fee_base_msat = policy.fee_base_msat
fee_proportional_millionths = policy.fee_proportional_millionths
cltv_expiry_delta = policy.cltv_expiry_delta
missing_info = False
if missing_info:
self.print_error(f"Warning. Missing channel update for our channel {bh2u(chan_id)}; "
f"filling invoice with incorrect data.")
routing_hints.append(('r', [(chan.node_id, routing_hints.append(('r', [(chan.node_id,
chan_id, chan_id,
policy.fee_base_msat, fee_base_msat,
policy.fee_proportional_millionths, fee_proportional_millionths,
policy.cltv_expiry_delta)])) cltv_expiry_delta)]))
return routing_hints return routing_hints
def delete_invoice(self, payreq_key): def delete_invoice(self, payreq_key):