tif channel_update for our channel is missing, fill invoice with zeroes - electrum - Electrum Bitcoin wallet
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---
DIR commit 25c265768025e5d01aaab26a84a767726bbb6607
DIR parent 2e5552816c4ccec3c0257832fe38659d30b5247b
HTML Author: SomberNight <somber.night@protonmail.com>
Date: Tue, 16 Oct 2018 21:37:57 +0200
if channel_update for our channel is missing, fill invoice with zeroes
Diffstat:
M electrum/lnworker.py | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
---
DIR diff --git a/electrum/lnworker.py b/electrum/lnworker.py
t@@ -343,14 +343,27 @@ class LNWorker(PrintError):
chan_id = chan.short_channel_id
assert type(chan_id) is bytes, chan_id
channel_info = self.channel_db.get_channel_info(chan_id)
- if not channel_info: continue
- policy = channel_info.get_policy_for_node(chan.node_id)
- if not policy: continue
+ # note: as a fallback, if we don't have a channel update for the
+ # incoming direction of our private channel, we fill the invoice with zeroes.
+ # 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,
chan_id,
- policy.fee_base_msat,
- policy.fee_proportional_millionths,
- policy.cltv_expiry_delta)]))
+ fee_base_msat,
+ fee_proportional_millionths,
+ cltv_expiry_delta)]))
return routing_hints
def delete_invoice(self, payreq_key):