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wallet: loosen bump_fee sanity check further

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fixes #5502
This commit is contained in:
SomberNight
2019-07-10 16:35:40 +02:00
parent 261c492c37
commit 8a1052330d
1 changed files with 7 additions and 4 deletions
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11
electrum/wallet.py
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@@ -902,6 +902,7 @@ class Abstract_Wallet(AddressSynchronizer):
"""
if tx.is_final():
raise CannotBumpFee(_('Cannot bump fee') + ': ' + _('transaction is final'))
new_fee_rate = quantize_feerate(new_fee_rate) # strip excess precision
old_tx_size = tx.estimated_size()
old_fee = self.get_tx_fee(tx)
if old_fee is None:
@@ -925,10 +926,12 @@ class Abstract_Wallet(AddressSynchronizer):
tx=tx, new_fee_rate=new_fee_rate)
method_used = 2
actual_new_fee_rate = tx_new.get_fee() / tx_new.estimated_size()
if quantize_feerate(actual_new_fee_rate) < quantize_feerate(new_fee_rate):
raise Exception(f"bump_fee feerate target was not met (method: {method_used}). "
f"got {actual_new_fee_rate}, expected >={new_fee_rate}")
target_min_fee = new_fee_rate * tx_new.estimated_size()
actual_fee = tx_new.get_fee()
if actual_fee + 1 < target_min_fee:
raise Exception(f"bump_fee fee target was not met (method: {method_used}). "
f"got {actual_fee}, expected >={target_min_fee}. "
f"target rate was {new_fee_rate}")
tx_new.locktime = get_locktime_for_new_transaction(self.network)
return tx_new