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fix #6096: bugfix for creating zero amount LN invoice

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(also there was a unit-mismatch here...)
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SomberNight 2020-04-18 05:56:12 +02:00
parent 8f4c384aad
commit 12d771737a
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1 changed files with 7 additions and 3 deletions
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10
electrum/lnworker.py
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@ -1051,7 +1051,7 @@ class LNWallet(LNWorker):
raise Exception(_("add invoice timed out"))
@log_exceptions
async def _add_request_coro(self, amount_sat, message, expiry: int):
async def _add_request_coro(self, amount_sat: Optional[int], message, expiry: int):
timestamp = int(time.time())
routing_hints = await self._calc_routing_hints_for_invoice(amount_sat)
if not routing_hints:
@ -1190,16 +1190,20 @@ class LNWallet(LNWorker):
util.trigger_callback('request_status', payment_hash.hex(), PR_PAID)
util.trigger_callback('ln_payment_completed', payment_hash, chan.channel_id)
async def _calc_routing_hints_for_invoice(self, amount_sat):
async def _calc_routing_hints_for_invoice(self, amount_sat: Optional[int]):
"""calculate routing hints (BOLT-11 'r' field)"""
routing_hints = []
with self.lock:
channels = list(self.channels.values())
scid_to_my_channels = {chan.short_channel_id: chan for chan in channels
if chan.short_channel_id is not None}
if amount_sat:
amount_msat = 1000 * amount_sat
else: # for no amt invoices, check if channel can receive at least 1 sat:
amount_msat = 1
# note: currently we add *all* our channels; but this might be a privacy leak?
for chan in channels:
if not chan.can_receive(amount_sat, check_frozen=True):
if not chan.can_receive(amount_msat=amount_msat, check_frozen=True):
continue
chan_id = chan.short_channel_id
assert isinstance(chan_id, bytes), chan_id