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drain: fix zero division edge cases

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Michael Schmoock
2020-03-05 19:38:11 +01:00
committed by Christian Decker
parent d1559bed1d
commit eaee585f16
1 changed files with 4 additions and 0 deletions
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4
drain/drain.py
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@@ -135,6 +135,8 @@ def test_or_set_chunks(plugin, payload, my_id):
amount = spendable
if cmd == "fill" and amount > receivable:
amount = receivable
if amount == Millisatoshi(0):
raise RpcError(payload['command'], payload, {'message': 'Cannot detect required chunks to perform operation. Amount would be 0msat.'})
# get all spendable/receivables for our channels
channels = {}
@@ -356,6 +358,8 @@ def execute(payload: dict):
spendable, receivable = spendable_from_scid(plugin, payload)
total = spendable + receivable
amount = total * 0.01 * payload['percentage'] / payload['chunks']
if amount == Millisatoshi(0):
raise RpcError(payload['command'], payload, {'message': 'Cannot process chunk. Amount would be 0msat.'})
# if capacity exceeds, limit amount to full or empty channel
if payload['command'] == "drain" and amount > spendable: