def sign(self, solver):
"""
Sign bitcoin refund transaction.
:param solver: bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundTransaction -- bitcoin refund transaction instance.
>>> from shuttle.providers.bitcoin.transaction import RefundTransaction
>>> refund_transaction = RefundTransaction(network="testnet")
>>> refund_transaction.build_transaction(fund_transaction_id, sender_wallet, 10000)
>>> refund_transaction.sign(refund_solver)
<shuttle.providers.bitcoin.transaction.RefundTransaction object at 0x0409DAF0>
"""
if not isinstance(solver, RefundSolver):
raise TypeError(
"invalid solver instance, only takes bitcoin RefundSolver class"
)
if self.transaction is None:
raise ValueError(
"transaction script is none, build transaction first")
htlc = HTLC(self.network).init(
secret_hash=sha256(solver.secret).hex(),
recipient_address=str(self.wallet.address()),
sender_address=str(self.sender_account.address()),
sequence=solver.sequence)
self.transaction.spend([
TxOut(value=self.htlc["value"],
n=0,
script_pubkey=P2shScript.unhexlify(self.htlc["script"]))
], [P2shSolver(htlc.script, solver.solve())])
return self
def _get_signed_txn(self, wif_keys):
""" :param wif_keys: list of wif keys corresponding with
self.input_addresses addresses, in same order
"""
# NB: they are not guaranteed to be in order as there
# may be more than one utxo associated with a single
# address, but there will always be 1 solver associated
# a private key
unordered_solvers = []
unordered_tx_outs = []
unsigned = self._txn
if self.is_signed:
raise ValueError('cannot sign txn (already signed)')
for key in wif_keys:
# create btcpy PrivateKeys from input WIF format keys
private_key = PrivateKey.from_wif(key)
if self.is_segwit:
pub_key = private_key.pub(compressed=True)
s_solver = P2shSolver(
P2wpkhV0Script(pub_key),
P2wpkhV0Solver(private_key)
)
unordered_solvers.append(s_solver)
else:
# create btcpy P2PKH Solvers from those PrivateKeys
unordered_solvers.append(P2pkhSolver(private_key))
# a dict that matches the addresses (which are ordered the same as
# their above WIF Keys) to their solvers
addresses_solvers = dict(zip(self.input_addresses, unordered_solvers))
# from self._specific_utxo_data, take the output num, value and scriptPubKey
# and create TxOuts representing the UTXO's that will be spent.
# In a tuple with the address of the UTXO so the correct solver
# can be found later
for t in self._specific_utxo_data:
unordered_tx_outs.append((t[2], TxOut(value=t[4], n=t[1], script_pubkey=Script.unhexlify(t[3]))))
# unlike the lists defined at the top of the method, these are in
# order i.e the solver in solvers[0] is the solver for the TxOut of
# tx_outs[0]. this is required to pass them into the spend() method
tx_outs = []
solvers = []
for t in unordered_tx_outs:
address = t[0]
tx_outs.append(t[1])
solvers.append(addresses_solvers[address])
signed = unsigned.spend(tx_outs, solvers)
return signed
def sign(self, unsigned_raw, solver):
"""
Sign unsigned refund transaction raw.
:param unsigned_raw: bitcoin unsigned refund transaction raw.
:type unsigned_raw: str
:param solver: bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundSignature -- bitcoin refund signature instance.
>>> from shuttle.providers.bitcoin.signature import RefundSignature
>>> refund_signature = RefundSignature()
>>> refund_signature.sign(bitcoin_refund_unsigned, refund_solver)
<shuttle.providers.bitcoin.signature.RefundSignature object at 0x0409DAF0>
"""
tx_raw = json.loads(b64decode(str(unsigned_raw).encode()).decode())
if "raw" not in tx_raw or "outputs" not in tx_raw or "type" not in tx_raw or \
"recipient_address" not in tx_raw or "sender_address" not in tx_raw or "fee" not in tx_raw:
raise ValueError("invalid unsigned refund transaction raw")
self.fee = tx_raw["fee"]
self.type = tx_raw["type"]
if not self.type == "bitcoin_refund_unsigned":
raise TypeError("can't sign this %s transaction using RefundSignature" % tx_raw["type"])
if not isinstance(solver, RefundSolver):
raise Exception("invalid solver error, only refund solver")
htlc = HTLC(network=self.network).init(
secret_hash=sha256(solver.secret).hex(),
recipient_address=tx_raw["recipient_address"],
sender_address=tx_raw["sender_address"],
sequence=solver.sequence
)
output = TxOut(value=tx_raw["outputs"][0]["amount"], n=tx_raw["outputs"][0]["n"],
script_pubkey=P2shScript.unhexlify(tx_raw["outputs"][0]["script"]))
self.transaction = MutableTransaction.unhexlify(tx_raw["raw"])
self.transaction.spend([output], [
P2shSolver(htlc.script, solver.solve())
])
self.signed = b64encode(str(json.dumps(dict(
raw=self.transaction.hexlify(),
fee=tx_raw["fee"],
network=tx_raw["network"],
type="bitcoin_refund_signed"
))).encode()).decode()
return self
def sign(self, solver):
"""
Sign Bitcoin refund transaction.
:param solver: Bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundTransaction -- Bitcoin refund transaction instance.
>>> from swap.providers.bitcoin.transaction import RefundTransaction
>>> from swap.providers.bitcoin.solver import RefundSolver
>>> from swap.providers.bitcoin.wallet import Wallet
>>> sender_wallet = Wallet(network="testnet").from_passphrase("meherett1234")
>>> refund_solver = RefundSolver(sender_wallet.private_key(), "3a26da82ead15a80533a02696656b14b5dbfd84eb14790f2e1be5e9e45820eeb", "muTnffLDR5LtFeLR2i3WsKVfdyvzfyPnVB", sender_wallet.address(), 1000)
>>> refund_transaction = RefundTransaction(network="testnet")
>>> refund_transaction.build_transaction("1006a6f537fcc4888c65f6ff4f91818a1c6e19bdd3130f59391c00212c552fbd", sender_wallet, 10000)
>>> refund_transaction.sign(solver=refund_solver)
<swap.providers.bitcoin.transaction.RefundTransaction object at 0x0409DAF0>
"""
# Checking parameter instances
if not isinstance(solver, RefundSolver):
raise TypeError("invalid solver instance, only takes Bitcoin RefundSolver class")
if self.transaction is None:
raise ValueError("transaction script is none, build transaction first")
self.transaction.spend([
TxOut(
value=self.htlc_detail["value"],
n=0,
script_pubkey=P2shScript.unhexlify(
hex_string=self.htlc_detail["script"]
)
)
], [
P2shSolver(
redeem_script=solver.witness(
network=self.network
),
redeem_script_solver=solver.solve()
)
])
self._type = "bitcoin_refund_signed"
return self
def sign(self, solver):
"""
Sign Bitcoin claim transaction.
:param solver: Bitcoin claim solver.
:type solver: bitcoin.solver.ClaimSolver
:returns: ClaimTransaction -- Bitcoin claim transaction instance.
>>> from swap.providers.bitcoin.transaction import ClaimTransaction
>>> from swap.providers.bitcoin.solver import ClaimSolver
>>> from swap.providers.bitcoin.wallet import Wallet
>>> recipient_wallet = Wallet(network="testnet").from_passphrase("meherett")
>>> claim_solver = ClaimSolver(recipient_wallet.private_key(), "Hello Meheret!", "3a26da82ead15a80533a02696656b14b5dbfd84eb14790f2e1be5e9e45820eeb", recipient_wallet.address(), "mphBPZf15cRFcL5tUq6mCbE84XobZ1vg7Q", 1000)
>>> claim_transaction = ClaimTransaction(network="testnet")
>>> claim_transaction.build_transaction("1006a6f537fcc4888c65f6ff4f91818a1c6e19bdd3130f59391c00212c552fbd", recipient_wallet, 10000)
>>> claim_transaction.sign(solver=claim_solver)
<swap.providers.bitcoin.transaction.ClaimTransaction object at 0x0409DAF0>
"""
# Checking parameter instances
if not isinstance(solver, ClaimSolver):
raise TypeError("invalid solver instance, only takes Bitcoin ClaimSolver class")
if self.transaction is None:
raise ValueError("transaction script is none, build transaction first")
self.transaction.spend([
TxOut(
value=self.htlc_detail["value"],
n=0,
script_pubkey=P2shScript.unhexlify(
hex_string=self.htlc_detail["script"]
)
)
], [
P2shSolver(
redeem_script=solver.witness(
network=self.network
),
redeem_script_solver=solver.solve()
)
])
self._type = "bitcoin_claim_signed"
return self
def sign(self, solver: WithdrawSolver) -> "WithdrawTransaction":
"""
Sign Bitcoin withdraw transaction.
:param solver: Bitcoin withdraw solver.
:type solver: bitcoin.solver.WithdrawSolver
:returns: WithdrawTransaction -- Bitcoin withdraw transaction instance.
>>> from swap.providers.bitcoin.transaction import WithdrawTransaction
>>> from swap.providers.bitcoin.solver import WithdrawSolver
>>> withdraw_transaction: WithdrawTransaction = WithdrawTransaction("testnet")
>>> withdraw_transaction.build_transaction(address="mgS3WMHp9nvdUPeDJxr5iCF2P5HuFZSR3V", transaction_hash="a211d21110756b266925fee2fbf2dc81529beef5e410311b38578dc3a076fb31")
>>> bytecode: str = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140a0a6590e6ba4b48118d21b86812615219ece76b88ac67040ec4d660b17576a914e00ff2a640b7ce2d336860739169487a57f84b1588ac68"
>>> withdraw_solver: WithdrawSolver = WithdrawSolver(xprivate_key="tprv8ZgxMBicQKsPf949JcuVFLXPJ5m4VKe33gVX3FYVZYVHr2dChU8K66aEQcPdHpUgACq5GQu81Z4e3QN1vxCrV4pxcUcXHoRTamXBRaPdJhW", secret_key="Hello Meheret!", bytecode=bytecode)
>>> withdraw_transaction.sign(solver=withdraw_solver)
<swap.providers.bitcoin.transaction.WithdrawTransaction object at 0x0409DAF0>
"""
# Check parameter instances
if not isinstance(solver, WithdrawSolver):
raise TypeError(
f"Solver must be Bitcoin WithdrawSolver, not {type(solver).__name__} type."
)
if self._transaction is None:
raise ValueError("Transaction is none, build transaction first.")
self._transaction.spend([
TxOut(value=self._htlc_utxo["value"],
n=0,
script_pubkey=P2shScript.unhexlify(
hex_string=self._htlc_utxo["script"]))
], [
P2shSolver(
redeem_script=solver.witness(network=self._network),
redeem_script_solver=solver.solve(network=self._network))
])
# Set transaction type
self._type = "bitcoin_withdraw_signed"
return self
def sign(self, solver: RefundSolver) -> "RefundTransaction":
"""
Sign Bitcoin refund transaction.
:param solver: Bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundTransaction -- Bitcoin refund transaction instance.
>>> from swap.providers.bitcoin.transaction import RefundTransaction
>>> refund_transaction: RefundTransaction = RefundTransaction("testnet")
>>> refund_transaction.build_transaction(address="n1wgm6kkzMcNfAtJmes8YhpvtDzdNhDY5a", transaction_hash="a211d21110756b266925fee2fbf2dc81529beef5e410311b38578dc3a076fb31")
>>> bytecode: str = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140a0a6590e6ba4b48118d21b86812615219ece76b88ac67040ec4d660b17576a914e00ff2a640b7ce2d336860739169487a57f84b1588ac68"
>>> refund_solver: RefundSolver = RefundSolver(xprivate_key="tprv8ZgxMBicQKsPeMHMJAc6uWGYiGqi1MVM2ybmzXL2TAoDpQe85uyDpdT7mv7Nhdu5rTCBEKLZsd9KyP2LQZJzZTvgVQvENArgU8e6DoYBiXf", bytecode=bytecode, endtime=1624687630)
>>> refund_transaction.sign(solver=refund_solver)
<swap.providers.bitcoin.transaction.RefundTransaction object at 0x0409DAF0>
"""
# Check parameter instances
if not isinstance(solver, RefundSolver):
raise TypeError(
f"Solver must be Bitcoin RefundSolver, not {type(solver).__name__} type."
)
if self._transaction is None:
raise ValueError("Transaction is none, build transaction first.")
self._transaction.spend([
TxOut(value=self._htlc_utxo["value"],
n=0,
script_pubkey=P2shScript.unhexlify(
hex_string=self._htlc_utxo["script"]))
], [
P2shSolver(
redeem_script=solver.witness(network=self._network),
redeem_script_solver=solver.solve(network=self._network))
])
# Set transaction type
self._type = "bitcoin_refund_signed"
return self
def sign(self, unsigned_raw, solver):
"""
Sign unsigned refund transaction raw.
:param unsigned_raw: Bitcoin unsigned refund transaction raw.
:type unsigned_raw: str
:param solver: Bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundSignature -- Bitcoin refund signature instance.
>>> from shuttle.providers.bitcoin.signature import RefundSignature
>>> from shuttle.providers.bitcoin.solver import RefundSolver
>>> bitcoin_refund_unsigned_raw = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTUyYzIzZGM2NDU2N2IxY2ZhZjRkNzc2NjBjNzFjNzUxZjkwZTliYTVjMzc0N2ZhYzFkMDA1MTgwOGVhMGQ2NTEwMDAwMDAwMDAwZmZmZmZmZmYwMTQ4MTEwMDAwMDAwMDAwMDAxOTc2YTkxNDY0YTgzOTBiMGIxNjg1ZmNiZjJkNGI0NTcxMThkYzhkYTkyZDU1MzQ4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiA1MDAwLCAibiI6IDAsICJzY3JpcHRfcHVia2V5IjogImE5MTQ0MzNlOGVkNTliOWE2N2YwZjE4N2M2M2ViNDUwYjBkNTZlMjU2ZWMyODcifSwgIm5ldHdvcmsiOiAidGVzdG5ldCIsICJ0eXBlIjogImJpdGNvaW5fcmVmdW5kX3Vuc2lnbmVkIn0"
>>> refund_solver = RefundSolver("92cbbc5990cb5090326a76feeb321cad01048635afe5756523bbf9f7a75bf38b", "3a26da82ead15a80533a02696656b14b5dbfd84eb14790f2e1be5e9e45820eeb", "muTnffLDR5LtFeLR2i3WsKVfdyvzfyPnVB", "mphBPZf15cRFcL5tUq6mCbE84XobZ1vg7Q", 1000)
>>> refund_signature = RefundSignature(network="testnet")
>>> refund_signature.sign(unsigned_raw=bitcoin_refund_unsigned_raw, solver=refund_solver)
<shuttle.providers.bitcoin.signature.RefundSignature object at 0x0409DAF0>
"""
# Decoding and loading refund transaction
refund_transaction = json.loads(
b64decode(
str(unsigned_raw + "=" *
(-len(unsigned_raw) % 4)).encode()).decode())
# Checking refund transaction keys
for key in ["raw", "outputs", "type", "fee", "network"]:
if key not in refund_transaction:
raise ValueError(
"invalid Bitcoin unsigned refund transaction raw")
if not refund_transaction["type"] == "bitcoin_refund_unsigned":
raise TypeError(
f"invalid Bitcoin refund unsigned transaction type, "
f"you can't sign this {refund_transaction['type']} type by using RefundSignature"
)
if not isinstance(solver, RefundSolver):
raise TypeError(
"invalid Bitcoin solver, it's only takes Bitcoin RefundSolver class"
)
# Setting transaction fee, type, network and transaction
self._fee, self._type, self.network, self.transaction = (
refund_transaction["fee"], refund_transaction["type"],
refund_transaction["network"],
MutableTransaction.unhexlify(refund_transaction["raw"]))
# Signing refund transaction
self.transaction.spend([
TxOut(
value=refund_transaction["outputs"]["value"],
n=refund_transaction["outputs"]["n"],
script_pubkey=P2shScript.unhexlify(
hex_string=refund_transaction["outputs"]["script_pubkey"]))
], [
P2shSolver(redeem_script=solver.witness(
network=refund_transaction["network"]),
redeem_script_solver=solver.solve())
])
# Encoding refund transaction raw
self._type = "bitcoin_refund_signed"
self._signed_raw = b64encode(
str(
json.dumps(
dict(raw=self.transaction.hexlify(),
fee=refund_transaction["fee"],
network=refund_transaction["network"],
type=self._type))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: RefundSolver) -> "RefundSignature":
"""
Sign unsigned refund transaction raw.
:param transaction_raw: Bitcoin unsigned refund transaction raw.
:type transaction_raw: str
:param solver: Bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundSignature -- Bitcoin refund signature instance.
>>> from swap.providers.bitcoin.signature import Signature
>>> from swap.providers.bitcoin.solver import RefundSolver
>>> unsigned_refund_transaction_raw: str = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTMxZmI3NmEwYzM4ZDU3MzgxYjMxMTBlNGY1ZWU5YjUyODFkY2YyZmJlMmZlMjU2OTI2NmI3NTEwMTFkMjExYTIwMDAwMDAwMDAwZmZmZmZmZmYwMTYwODQwMTAwMDAwMDAwMDAxOTc2YTkxNGUwMGZmMmE2NDBiN2NlMmQzMzY4NjA3MzkxNjk0ODdhNTdmODRiMTU4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiAxMDAwMDAsICJ0eF9vdXRwdXRfbiI6IDAsICJzY3JpcHQiOiAiYTkxNGM4Yzc3YTliNDNlZTJiZGYxYTA3YzQ4Njk5ODMzZDc2NjhiZjI2NGM4NyJ9LCAibmV0d29yayI6ICJ0ZXN0bmV0IiwgInR5cGUiOiAiYml0Y29pbl9yZWZ1bmRfdW5zaWduZWQifQ"
>>> bytecode: str = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140a0a6590e6ba4b48118d21b86812615219ece76b88ac67040ec4d660b17576a914e00ff2a640b7ce2d336860739169487a57f84b1588ac68"
>>> refund_solver: RefundSolver = RefundSolver(xprivate_key="tprv8ZgxMBicQKsPeMHMJAc6uWGYiGqi1MVM2ybmzXL2TAoDpQe85uyDpdT7mv7Nhdu5rTCBEKLZsd9KyP2LQZJzZTvgVQvENArgU8e6DoYBiXf", bytecode=bytecode, endtime=1624687630)
>>> refund_signature: RefundSignature = RefundSignature(network="testnet")
>>> refund_signature.sign(transaction_raw=unsigned_refund_transaction_raw, solver=refund_solver)
<swap.providers.bitcoin.signature.RefundSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_refund_unsigned":
raise TypeError(f"Invalid Bitcoin refund unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using refund signature.")
# Check parameter instances
if not isinstance(solver, RefundSolver):
raise TypeError(f"Solver must be Bitcoin RefundSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Sign refund transaction
self._transaction.spend([TxOut(
value=loaded_transaction_raw["outputs"]["value"],
n=loaded_transaction_raw["outputs"]["tx_output_n"],
script_pubkey=P2shScript.unhexlify(
hex_string=loaded_transaction_raw["outputs"]["script"]
)
)], [P2shSolver(
redeem_script=solver.witness(
network=self._network
),
redeem_script_solver=solver.solve(
network=self._network
)
)])
# Encode refund transaction raw
self._type = "bitcoin_refund_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: WithdrawSolver) -> "WithdrawSignature":
"""
Sign unsigned withdraw transaction raw.
:param transaction_raw: Bitcoin unsigned withdraw transaction raw.
:type transaction_raw: str
:param solver: Bitcoin withdraw solver.
:type solver: bitcoin.solver.WithdrawSolver
:returns: WithdrawSignature -- Bitcoin withdraw signature instance.
>>> from swap.providers.bitcoin.signature import WithdrawSignature
>>> from swap.providers.bitcoin.solver import WithdrawSolver
>>> unsigned_withdraw_transaction_raw: str = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTMxZmI3NmEwYzM4ZDU3MzgxYjMxMTBlNGY1ZWU5YjUyODFkY2YyZmJlMmZlMjU2OTI2NmI3NTEwMTFkMjExYTIwMDAwMDAwMDAwZmZmZmZmZmYwMTYwODQwMTAwMDAwMDAwMDAxOTc2YTkxNDBhMGE2NTkwZTZiYTRiNDgxMThkMjFiODY4MTI2MTUyMTllY2U3NmI4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiAxMDAwMDAsICJ0eF9vdXRwdXRfbiI6IDAsICJzY3JpcHQiOiAiYTkxNGM4Yzc3YTliNDNlZTJiZGYxYTA3YzQ4Njk5ODMzZDc2NjhiZjI2NGM4NyJ9LCAibmV0d29yayI6ICJ0ZXN0bmV0IiwgInR5cGUiOiAiYml0Y29pbl93aXRoZHJhd191bnNpZ25lZCJ9"
>>> bytecode: str = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140a0a6590e6ba4b48118d21b86812615219ece76b88ac67040ec4d660b17576a914e00ff2a640b7ce2d336860739169487a57f84b1588ac68"
>>> withdraw_solver: WithdrawSolver = WithdrawSolver(xprivate_key="tprv8ZgxMBicQKsPf949JcuVFLXPJ5m4VKe33gVX3FYVZYVHr2dChU8K66aEQcPdHpUgACq5GQu81Z4e3QN1vxCrV4pxcUcXHoRTamXBRaPdJhW", secret_key="Hello Meheret!", bytecode=bytecode)
>>> withdraw_signature: WithdrawSignature = WithdrawSignature(network="testnet")
>>> withdraw_signature.sign(transaction_raw=unsigned_withdraw_transaction_raw, solver=withdraw_solver)
<swap.providers.bitcoin.signature.WithdrawSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_withdraw_unsigned":
raise TypeError(f"Invalid Bitcoin withdraw unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using withdraw signature.")
# Check parameter instances
if not isinstance(solver, WithdrawSolver):
raise TypeError(f"Solver must be Bitcoin WithdrawSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Sign withdraw transaction
self._transaction.spend([TxOut(
value=loaded_transaction_raw["outputs"]["value"],
n=loaded_transaction_raw["outputs"]["tx_output_n"],
script_pubkey=P2shScript.unhexlify(
hex_string=loaded_transaction_raw["outputs"]["script"]
)
)], [P2shSolver(
redeem_script=solver.witness(
network=self._network
),
redeem_script_solver=solver.solve(
network=self._network
)
)])
# Encode withdraw transaction raw
self._type = "bitcoin_withdraw_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: RefundSolver) -> "RefundSignature":
"""
Sign unsigned refund transaction raw.
:param transaction_raw: Bitcoin unsigned refund transaction raw.
:type transaction_raw: str
:param solver: Bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundSignature -- Bitcoin refund signature instance.
>>> from swap.providers.bitcoin.signature import RefundSignature
>>> from swap.providers.bitcoin.solver import RefundSolver
>>> unsigned_refund_transaction_raw = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTE4MjNmMzlhOGM1ZjZmMjc4NDVkZDEzYTY1ZTAzZmUyZWY1MTA4ZDIzNWU3YTM2ZWRiNmViMjY3YjA0NTljNWEwMDAwMDAwMDAwZmZmZmZmZmYwMWQwMjQwMDAwMDAwMDAwMDAxOTc2YTkxNDMzZWNhYjNkNjdmMGUyYmRlNDNlNTJmNDFlYzFlY2JkYzczZjExZjg4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiAxMDAwMCwgInR4X291dHB1dF9uIjogMCwgInNjcmlwdCI6ICJhOTE0OTQxOGZlZWQ0NjQ3ZTE1NmQ2NjYzZGIzZTBjZWY3YzA1MGQwMzg2Nzg3In0sICJuZXR3b3JrIjogInRlc3RuZXQiLCAidHlwZSI6ICJiaXRjb2luX3JlZnVuZF91bnNpZ25lZCJ9"
>>> sender_root_xprivate_key = "xprv9s21ZrQH143K3XihXQBN8Uar2WBtrjSzK2oRDEGQ25pA2kKAADoQXaiiVXht163ZTrdtTXfM4GqNRE9gWQHky25BpvBQuuhNCM3SKwWTPNJ"
>>> bytecode = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140e259e08f2ec9fc99a92b6f66fdfcb3c7914fd6888ac6702e803b27576a91433ecab3d67f0e2bde43e52f41ec1ecbdc73f11f888ac68"
>>> refund_solver = RefundSolver(sender_root_xprivate_key, bytecode, 1000)
>>> refund_signature = RefundSignature("testnet")
>>> refund_signature.sign(transaction_raw=unsigned_refund_transaction_raw, solver=refund_solver)
<swap.providers.bitcoin.signature.RefundSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_refund_unsigned":
raise TypeError(f"Invalid Bitcoin refund unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using refund signature.")
# Check parameter instances
if not isinstance(solver, RefundSolver):
raise TypeError(f"Solver must be Bitcoin RefundSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._datas, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"], loaded_transaction_raw["datas"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Sign refund transaction
self._transaction.spend([TxOut(
value=loaded_transaction_raw["outputs"]["value"],
n=loaded_transaction_raw["outputs"]["tx_output_n"],
script_pubkey=P2shScript.unhexlify(
hex_string=loaded_transaction_raw["outputs"]["script"]
)
)], [P2shSolver(
redeem_script=solver.witness(
network=self._network
),
redeem_script_solver=solver.solve(
network=self._network
)
)])
# Encode refund transaction raw
self._type = "bitcoin_refund_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
datas=self._datas
))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: ClaimSolver) -> "ClaimSignature":
"""
Sign unsigned claim transaction raw.
:param transaction_raw: Bitcoin unsigned claim transaction raw.
:type transaction_raw: str
:param solver: Bitcoin claim solver.
:type solver: bitcoin.solver.ClaimSolver
:returns: ClaimSignature -- Bitcoin claim signature instance.
>>> from swap.providers.bitcoin.signature import ClaimSignature
>>> from swap.providers.bitcoin.solver import ClaimSolver
>>> unsigned_claim_transaction_raw = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTE4MjNmMzlhOGM1ZjZmMjc4NDVkZDEzYTY1ZTAzZmUyZWY1MTA4ZDIzNWU3YTM2ZWRiNmViMjY3YjA0NTljNWEwMDAwMDAwMDAwZmZmZmZmZmYwMWQwMjQwMDAwMDAwMDAwMDAxOTc2YTkxNDBlMjU5ZTA4ZjJlYzlmYzk5YTkyYjZmNjZmZGZjYjNjNzkxNGZkNjg4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiAxMDAwMCwgInR4X291dHB1dF9uIjogMCwgInNjcmlwdCI6ICJhOTE0OTQxOGZlZWQ0NjQ3ZTE1NmQ2NjYzZGIzZTBjZWY3YzA1MGQwMzg2Nzg3In0sICJuZXR3b3JrIjogInRlc3RuZXQiLCAidHlwZSI6ICJiaXRjb2luX2NsYWltX3Vuc2lnbmVkIn0"
>>> recipient_root_xprivate_key = "xprv9s21ZrQH143K4Kpce43z5guPyxLrFoc2i8aQAq835Zzp4Rt7i6nZaMCnVSDyHT6MnmJJGKHMrCUqaYpGojrug1ZN5qQDdShQffmkyv5xyUR"
>>> bytecode = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140e259e08f2ec9fc99a92b6f66fdfcb3c7914fd6888ac6702e803b27576a91433ecab3d67f0e2bde43e52f41ec1ecbdc73f11f888ac68"
>>> claim_solver = ClaimSolver(recipient_root_xprivate_key, "Hello Meheret!", bytecode)
>>> claim_signature = ClaimSignature("testnet")
>>> claim_signature.sign(transaction_raw=unsigned_claim_transaction_raw, solver=claim_solver)
<swap.providers.bitcoin.signature.ClaimSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_claim_unsigned":
raise TypeError(f"Invalid Bitcoin claim unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using claim signature.")
# Check parameter instances
if not isinstance(solver, ClaimSolver):
raise TypeError(f"Solver must be Bitcoin ClaimSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._datas, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"], loaded_transaction_raw["datas"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Sign claim transaction
self._transaction.spend([TxOut(
value=loaded_transaction_raw["outputs"]["value"],
n=loaded_transaction_raw["outputs"]["tx_output_n"],
script_pubkey=P2shScript.unhexlify(
hex_string=loaded_transaction_raw["outputs"]["script"]
)
)], [P2shSolver(
redeem_script=solver.witness(
network=self._network
),
redeem_script_solver=solver.solve(
network=self._network
)
)])
# Encode claim transaction raw
self._type = "bitcoin_claim_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
datas=self._datas
))).encode()).decode()
return self
