def xform_aggsig_sig_pair(pair):
"""
Transform a pair (aggsig_pair_bytes, sig_bytes)
to (aggsig_pair, BLSSignature).
"""
aggsig = BLSSignature.aggsig_pair.from_bytes(pair[0])
sig = BLSSignature.from_bytes(pair[1])
return (aggsig, sig)
async def do_spend_coin(wallet, storage, input):
"""
UI to spend a coin.
"""
coins = []
while True:
coin_str = input("Enter hex id of coin to spend> ")
if len(coin_str) == 0:
break
coin_name = bytes.fromhex(coin_str)
preimage = await storage.hash_preimage(hash=coin_name)
if preimage is None:
print(f"can't find coin id {coin_name.hex()}")
continue
coin = Coin.from_bytes(preimage)
coin_puzzle_hash_hex = coin.puzzle_hash.hex()
print(f"coin puzzle hash is {coin_puzzle_hash_hex}")
coins.append(coin)
if len(coins) == 0:
return
dest_address = "14c56fdefb47e2208de54b6c609a907c522348c96e8cfb41c7a8c75f44835dd9"
print(f"sending 1 coin to {dest_address}, rest fees")
# create an unfinalized SpendBundle
pst = spend_coin(wallet, coins, dest_address)
pst_encoded = bytes(pst)
print(pst_encoded.hex())
# keep requesting signatures until finalized
sigs = []
while True:
sig_str = input("Enter a signature> ")
try:
sig = BLSSignature.from_bytes(bytes.fromhex(sig_str))
except Exception as ex:
print("failed: %s" % ex)
continue
sigs.append(sig)
sigs = list(set(sigs))
spend_bundle, summary_list = finalize_pst(wallet, pst, sigs)
if spend_bundle:
break
for summary in summary_list:
print(
"coin %s has %d of %d sigs"
% (summary[0].name(), len(summary[2]), summary[3])
)
print("spend bundle = %s" % bytes(spend_bundle).hex())
# optionally send to ledger sim
r = input(f"Send to ledger sim? (y/n)> ")
if r.lower().startswith("y"):
r = await storage.ledger_sim().push_tx(tx=spend_bundle)
return spend_bundle
def signature_from_string(signature):
try:
sig = BLSSignature.from_bytes(bytes.fromhex(signature))
except Exception:
raise Exception
return sig