def test_spend_freeze_script(setup_tx_creation):
ensure_bip65_activated()
wallet_service = make_wallets(1, [[3, 0, 0, 0, 0]], 3)[0]['wallet']
wallet_service.sync_wallet(fast=True)
mediantime = jm_single().bc_interface.rpc("getblockchaininfo",
[])["mediantime"]
timeoffset_success_tests = [(2, False), (-60 * 60 * 24 * 30, True),
(60 * 60 * 24 * 30, False)]
for timeoffset, required_success in timeoffset_success_tests:
#generate keypair
priv = b"\xaa" * 32 + b"\x01"
pub = bitcoin.privkey_to_pubkey(priv)
addr_locktime = mediantime + timeoffset
redeem_script = bitcoin.mk_freeze_script(pub, addr_locktime)
script_pub_key = bitcoin.redeem_script_to_p2wsh_script(redeem_script)
# cannot convert to address within wallet service, as not known
# to wallet; use engine directly:
addr = wallet_service._ENGINE.script_to_address(script_pub_key)
#fund frozen funds address
amount = 100000000
funding_ins_full = wallet_service.select_utxos(0, amount)
funding_txid = make_sign_and_push(funding_ins_full,
wallet_service,
amount,
output_addr=addr)
assert funding_txid
#spend frozen funds
frozen_in = (funding_txid, 0)
output_addr = wallet_service.get_internal_addr(1)
miner_fee = 5000
outs = [{'value': amount - miner_fee, 'address': output_addr}]
tx = bitcoin.mktx([frozen_in], outs, locktime=addr_locktime + 1)
i = 0
sig, success = bitcoin.sign(tx,
i,
priv,
amount=amount,
native=redeem_script)
assert success
push_success = jm_single().bc_interface.pushtx(tx.serialize())
assert push_success == required_success
def test_spend_freeze_script(setup_tx_creation):
ensure_bip65_activated()
wallet_service = make_wallets(1, [[3, 0, 0, 0, 0]], 3)[0]['wallet']
wallet_service.sync_wallet(fast=True)
mediantime = jm_single().bc_interface.rpc("getblockchaininfo", [])["mediantime"]
timeoffset_success_tests = [(2, False), (-60*60*24*30, True), (60*60*24*30, False)]
for timeoffset, required_success in timeoffset_success_tests:
#generate keypair
priv = "aa"*32 + "01"
pub = unhexlify(bitcoin.privkey_to_pubkey(priv))
addr_locktime = mediantime + timeoffset
redeem_script = bitcoin.mk_freeze_script(pub, addr_locktime)
script_pub_key = bitcoin.redeem_script_to_p2wsh_script(redeem_script)
regtest_vbyte = 100
addr = bitcoin.script_to_address(script_pub_key, vbyte=regtest_vbyte)
#fund frozen funds address
amount = 100000000
funding_ins_full = wallet_service.select_utxos(0, amount)
funding_txid = make_sign_and_push(funding_ins_full, wallet_service, amount, output_addr=addr)
assert funding_txid
#spend frozen funds
frozen_in = funding_txid + ":0"
output_addr = wallet_service.get_internal_addr(1)
miner_fee = 5000
outs = [{'value': amount - miner_fee, 'address': output_addr}]
tx = bitcoin.mktx([frozen_in], outs, locktime=addr_locktime+1)
i = 0
sig = bitcoin.get_p2sh_signature(tx, i, redeem_script, priv, amount)
assert bitcoin.verify_tx_input(tx, i, script_pub_key, sig, pub,
scriptCode=redeem_script, amount=amount)
tx = bitcoin.apply_freeze_signature(tx, i, redeem_script, sig)
push_success = jm_single().bc_interface.pushtx(tx)
assert push_success == required_success
def pubkey_to_script_code(cls, pubkey_locktime):
pubkey, locktime = pubkey_locktime
return btc.mk_freeze_script(pubkey, locktime)
def create_fidelity_bond_table(self, btc_unit):
if jm_single().bc_interface == None:
with self.taker.dblock:
fbonds = self.taker.db.execute(
"SELECT * FROM fidelitybonds;").fetchall()
fidelity_bond_data = []
for fb in fbonds:
try:
proof = FidelityBondProof.parse_and_verify_proof_msg(
fb["counterparty"], fb["takernick"], fb["proof"])
except ValueError:
proof = None
fidelity_bond_data.append((proof, None))
fidelity_bond_values = [-1] * len(
fidelity_bond_data) #-1 means no data
bond_outpoint_conf_times = [-1] * len(fidelity_bond_data)
total_btc_committed_str = "unknown"
else:
(fidelity_bond_data, fidelity_bond_values, bond_outpoint_conf_times) =\
get_fidelity_bond_data(self.taker)
total_btc_committed_str = satoshi_to_unit(
sum([
utxo_data["value"] for _, utxo_data in fidelity_bond_data
]), None, btc_unit, 0)
RETARGET_INTERVAL = 2016
elem = lambda e: "<td>" + e + "</td>"
bondtable = ""
for (bond_data, utxo_data), bond_value, conf_time in zip(
fidelity_bond_data, fidelity_bond_values,
bond_outpoint_conf_times):
if bond_value == -1 or conf_time == -1 or utxo_data == None:
bond_value_str = "No data"
conf_time_str = "No data"
utxo_value_str = "No data"
else:
bond_value_str = satoshi_to_unit_power(
bond_value, 2 * unit_to_power[btc_unit])
conf_time_str = str(
datetime.utcfromtimestamp(0) +
timedelta(seconds=conf_time))
utxo_value_str = satoshi_to_unit(utxo_data["value"], None,
btc_unit, 0)
bondtable += (
"<tr>" + elem(bond_data.maker_nick) + elem(
bintohex(bond_data.utxo[0]) + ":" + str(bond_data.utxo[1]))
+ elem(bond_value_str) + elem(
(datetime.utcfromtimestamp(0) + timedelta(
seconds=bond_data.locktime)).strftime("%Y-%m-%d")) +
elem(utxo_value_str) + elem(conf_time_str) +
elem(str(bond_data.cert_expiry * RETARGET_INTERVAL)) + elem(
bintohex(
btc.mk_freeze_script(bond_data.utxo_pub,
bond_data.locktime))) + "</tr>")
heading2 = (str(len(fidelity_bond_data)) +
" fidelity bonds found with " + total_btc_committed_str +
" " + btc_unit + " total locked up")
choose_units_form = (
'<form method="get" action="">' +
'<select name="btcunit" onchange="this.form.submit();">' + ''.join(
('<option>' + u + ' </option>'
for u in sorted_units)) + '</select></form>')
choose_units_form = choose_units_form.replace(
'<option>' + btc_unit, '<option selected="selected">' + btc_unit)
decodescript_tip = (
"<br/>Tip: try running the RPC <code>decodescript " +
"<redeemscript></code> as proof that the fidelity bond address matches the "
+
"locktime.<br/>Also run <code>gettxout <utxo_txid> <utxo_vout></code> "
+ "as proof that the fidelity bond UTXO is real.")
return (heading2,
choose_units_form + create_bonds_table_heading(btc_unit) +
bondtable + "</table>" + decodescript_tip)
def test_make_commitment(setup_taker, mixdepth, cjamt, failquery, external,
expected_success, amtpercent, age, mixdepth_extras):
def clean_up():
jm_single().config.set("POLICY", "taker_utxo_age", old_taker_utxo_age)
jm_single().config.set("POLICY", "taker_utxo_amtpercent",
old_taker_utxo_amtpercent)
set_commitment_file(old_commitment_file)
jm_single().bc_interface.setQUSFail(False)
jm_single().bc_interface.reset_confs()
os.remove('dummyext')
old_commitment_file = get_commitment_file()
with open('dummyext', 'wb') as f:
f.write(json.dumps(t_dummy_ext, indent=4).encode('utf-8'))
if external:
set_commitment_file('dummyext')
# define the appropriate podle acceptance parameters in the global config:
old_taker_utxo_age = jm_single().config.get("POLICY", "taker_utxo_age")
old_taker_utxo_amtpercent = jm_single().config.get(
"POLICY", "taker_utxo_amtpercent")
if expected_success:
# set to defaults for mainnet
newtua = "5"
newtuap = "20"
else:
newtua = str(age)
newtuap = str(amtpercent)
jm_single().config.set("POLICY", "taker_utxo_age", newtua)
jm_single().config.set("POLICY", "taker_utxo_amtpercent", newtuap)
taker = get_taker([(mixdepth, cjamt, 3,
"mnsquzxrHXpFsZeL42qwbKdCP2y1esN3qw", NO_ROUNDING)])
# modify or add any extra utxos for this run:
for k, v in mixdepth_extras.items():
if k == "confchange":
for k2, v2 in v.items():
# set the utxos in mixdepth k2 to have confs v2:
cdict = taker.wallet_service.get_utxos_by_mixdepth()[k2]
jm_single().bc_interface.set_confs(
{utxo: v2
for utxo in cdict.keys()})
elif k == "custom-script":
# note: this is inspired by fidelity bonds, and currently
# uses scripts of that specific timelock type, but is really
# only testing the general concept: that commitments must
# not be made on any non-standard script type.
for k2, v2 in v.items():
priv = os.urandom(32) + b"\x01"
tl = random.randrange(1430454400, 1430494400)
script_inner = bitcoin.mk_freeze_script(
bitcoin.privkey_to_pubkey(priv), tl)
script_outer = bitcoin.redeem_script_to_p2wsh_script(
script_inner)
taker.wallet_service.wallet._script_map[script_outer] = (
"nonstandard_path", )
taker.wallet_service.add_extra_utxo(os.urandom(32),
0,
v2,
k2,
script=script_outer)
else:
for value in v:
taker.wallet_service.add_extra_utxo(os.urandom(32), 0, value,
k)
taker.cjamount = cjamt
taker.input_utxos = taker.wallet_service.get_utxos_by_mixdepth()[mixdepth]
taker.mixdepth = mixdepth
if failquery:
jm_single().bc_interface.setQUSFail(True)
comm, revelation, msg = taker.make_commitment()
if expected_success and failquery:
# for manual tests, show the error message:
print("Failure case due to QUS fail: ")
print("Erromsg: ", msg)
assert not comm
elif expected_success:
assert comm, "podle was not generated but should have been."
else:
# in these cases we have set the podle acceptance
# parameters such that our in-mixdepth utxos are not good
# enough.
# for manual tests, show the errormsg:
print("Failure case, errormsg: ", msg)
assert not comm, "podle was generated but should not have been."
clean_up()