def get_addresses(self, testnet=False):
""" Returns all addresses found in this script
For output scripts, P2PKH scripts will return a single
address the funds are being sent to. P2SH scripts will
return a single address of the script the funds are being
sent to.
For input scripts, only standard signature and
multi-signature scripts will return results: the
address(es) used to sign. For standard signature scripts,
a single address is returned while for multi-sig scripts,
all n addresses in the redeem script are returned.
Args:
testnet (bool): True if the addresses are being used on testnet,
False if used on mainnet.
Returns:
list: A list of Base58Check encoded bitcoin addresses.
"""
rv = []
# Determine script type
if self.is_p2pkh():
version = self.P2PKH_TESTNET_VERSION if testnet else self.P2PKH_MAINNET_VERSION
rv.append(key_hash_to_address(self.get_hash160(), version))
elif self.is_p2sh():
version = self.P2SH_TESTNET_VERSION if testnet else self.P2SH_MAINNET_VERSION
rv.append(key_hash_to_address(self.get_hash160(), version))
elif self.is_multisig_sig():
# Extract out the info
version = self.P2PKH_TESTNET_VERSION if testnet else self.P2PKH_MAINNET_VERSION
sig_info = self.extract_multisig_sig_info()
redeem_info = sig_info[
'redeem_script'].extract_multisig_redeem_info()
for p in redeem_info['public_keys']:
rv.append(key_hash_to_address(hash160(p), version))
# Also include the address of the redeem script itself.
redeem_version = self.P2SH_TESTNET_VERSION if testnet else self.P2SH_MAINNET_VERSION
rv.append(
key_hash_to_address(sig_info['redeem_script'].hash160(),
redeem_version))
elif self.is_p2pkh_sig():
version = self.P2PKH_TESTNET_VERSION if testnet else self.P2PKH_MAINNET_VERSION
# Normal signature script...
sig_info = self.extract_sig_info()
rv.append(
key_hash_to_address(hash160(sig_info['public_key']), version))
elif Script.validate_template(self, [bytes, 'OP_CHECKSIG']):
version = self.P2PKH_TESTNET_VERSION if testnet else self.P2PKH_MAINNET_VERSION
rv.append(key_hash_to_address(hash160(self[0]), version))
return rv
def get_addresses(self, testnet=False):
""" Returns all addresses found in this script
For output scripts, P2PKH scripts will return a single
address the funds are being sent to. P2SH scripts will
return a single address of the script the funds are being
sent to.
For input scripts, only standard signature and
multi-signature scripts will return results: the
address(es) used to sign. For standard signature scripts,
a single address is returned while for multi-sig scripts,
all n addresses in the redeem script are returned.
Args:
testnet (bool): True if the addresses are being used on testnet,
False if used on mainnet.
Returns:
list: A list of Base58Check encoded bitcoin addresses.
"""
rv = []
# Determine script type
if self.is_p2pkh():
version = self.P2PKH_TESTNET_VERSION if testnet else self.P2PKH_MAINNET_VERSION
rv.append(key_hash_to_address(self.get_hash160(), version))
elif self.is_p2sh():
version = self.P2SH_TESTNET_VERSION if testnet else self.P2SH_MAINNET_VERSION
rv.append(key_hash_to_address(self.get_hash160(), version))
elif self.is_multisig_sig():
# Extract out the info
version = self.P2PKH_TESTNET_VERSION if testnet else self.P2PKH_MAINNET_VERSION
sig_info = self.extract_multisig_sig_info()
redeem_info = sig_info['redeem_script'].extract_multisig_redeem_info()
for p in redeem_info['public_keys']:
rv.append(key_hash_to_address(hash160(p), version))
# Also include the address of the redeem script itself.
redeem_version = self.P2SH_TESTNET_VERSION if testnet else self.P2SH_MAINNET_VERSION
rv.append(key_hash_to_address(sig_info['redeem_script'].hash160(), redeem_version))
elif self.is_p2pkh_sig():
version = self.P2PKH_TESTNET_VERSION if testnet else self.P2PKH_MAINNET_VERSION
# Normal signature script...
sig_info = self.extract_sig_info()
rv.append(key_hash_to_address(hash160(sig_info['public_key']),
version))
elif Script.validate_template(self, [bytes, 'OP_CHECKSIG']):
version = self.P2PKH_TESTNET_VERSION if testnet else self.P2PKH_MAINNET_VERSION
rv.append(key_hash_to_address(hash160(self[0]), version))
return rv
def insert_txn(self, wallet_txn, mark_provisional=False, expiration=0):
""" Inserts a transaction into the cache and updates the
relevant dicts based on the addresses found in the
transaction.
Args:
wallet_txn (WalletTransaction): A wallet transaction object.
mark_provisional (bool): Marks the transaction as
provisional (i.e. the transaction may have been built
but not yet broadcast to the blockchain). Transactions
marked as provisional are automatically pruned if they
are not also seen by normal transaction
updates/insertions within a certain time period.
expiration (int): Time, in seconds from epoch, when a provisional
transaction should be automatically pruned. This is invalid
unless mark_provisional=True. If expiration == 0, it is set
to time.time() + PROVISIONAL_MAX_DURATION. This cannot be
greater than PROVISIONAL_MAX_DURATION seconds in the future.
"""
txid = str(wallet_txn.hash)
# Check if it's already in with no change in status
if txid in self._txn_cache and \
wallet_txn._serialize() == self._txn_cache[txid]._serialize():
return
if mark_provisional and not wallet_txn.provisional:
now = time.time()
if expiration < 0:
raise ValueError("expiration cannot be negative.")
if expiration == 0 or \
expiration > now + self.PROVISIONAL_MAX_DURATION:
expiration = now + self.PROVISIONAL_MAX_DURATION
wallet_txn.provisional = expiration
if not mark_provisional and wallet_txn.provisional:
wallet_txn.provisional = False
self._txn_cache[txid] = wallet_txn
conf = wallet_txn.confirmations > 0
status = self.SPENT
out_status = self.UNSPENT
if not conf:
status |= self.UNCONFIRMED
out_status |= self.UNCONFIRMED
if mark_provisional:
status |= self.PROVISIONAL
out_status |= self.PROVISIONAL
# Get all the addresses for the transaction
addrs = wallet_txn.get_addresses(self.testnet)
if txid not in self._inputs_cache:
self._inputs_cache[txid] = dict()
if txid not in self._outputs_cache:
self._outputs_cache[txid] = dict()
for i, inp in enumerate(wallet_txn.inputs):
self._inputs_cache[txid][i] = inp
if not isinstance(inp,
CoinbaseInput) and inp.script.is_multisig_sig():
# Only keep the P2SH address
sig_info = inp.script.extract_multisig_sig_info()
redeem_version = Script.P2SH_TESTNET_VERSION if self.testnet \
else Script.P2SH_MAINNET_VERSION
a = key_hash_to_address(sig_info['redeem_script'].hash160(),
redeem_version)
addrs['inputs'][i] = [a]
# Update the status of any outputs
out_txid = str(inp.outpoint)
if out_txid not in self._outputs_cache:
self._outputs_cache[out_txid] = {}
if inp.outpoint_index not in self._outputs_cache[out_txid]:
d = dict(output=None,
status=status,
spend_txid=txid,
spend_index=i)
self._outputs_cache[out_txid][inp.outpoint_index] = d
else:
x = self._outputs_cache[out_txid][inp.outpoint_index]
x['status'] = status
x['spend_txid'] = txid
x['spend_index'] = i
for i, out in enumerate(wallet_txn.outputs):
if i in self._outputs_cache[txid]:
o = self._outputs_cache[txid][i]
o['output'] = out
# Only update the status if it is unconfirmed unspent going
# to confirmed unspent as it is possible that an input has
# already marked it as spent.
if not (o['status'] & self.SPENT):
o['status'] = out_status
else:
self._outputs_cache[txid][i] = dict(output=out,
status=out_status,
spend_txid=None,
spend_index=None)
self._insert_txid(txid, addrs['inputs'], 'input')
self._insert_txid(txid, addrs['outputs'], 'output')
self._dirty = True
def insert_txn(self, wallet_txn, mark_provisional=False, expiration=0):
""" Inserts a transaction into the cache and updates the
relevant dicts based on the addresses found in the
transaction.
Args:
wallet_txn (WalletTransaction): A wallet transaction object.
mark_provisional (bool): Marks the transaction as
provisional (i.e. the transaction may have been built
but not yet broadcast to the blockchain). Transactions
marked as provisional are automatically pruned if they
are not also seen by normal transaction
updates/insertions within a certain time period.
expiration (int): Time, in seconds from epoch, when a provisional
transaction should be automatically pruned. This is invalid
unless mark_provisional=True. If expiration == 0, it is set
to time.time() + PROVISIONAL_MAX_DURATION. This cannot be
greater than PROVISIONAL_MAX_DURATION seconds in the future.
"""
txid = str(wallet_txn.hash)
# Check if it's already in with no change in status
if txid in self._txn_cache and \
wallet_txn._serialize() == self._txn_cache[txid]._serialize():
return
if mark_provisional and not wallet_txn.provisional:
now = time.time()
if expiration < 0:
raise ValueError("expiration cannot be negative.")
if expiration == 0 or \
expiration > now + self.PROVISIONAL_MAX_DURATION:
expiration = now + self.PROVISIONAL_MAX_DURATION
wallet_txn.provisional = expiration
if not mark_provisional and wallet_txn.provisional:
wallet_txn.provisional = False
self._txn_cache[txid] = wallet_txn
conf = wallet_txn.confirmations > 0
status = self.SPENT
out_status = self.UNSPENT
if not conf:
status |= self.UNCONFIRMED
out_status |= self.UNCONFIRMED
if mark_provisional:
status |= self.PROVISIONAL
out_status |= self.PROVISIONAL
# Get all the addresses for the transaction
addrs = wallet_txn.get_addresses(self.testnet)
if txid not in self._inputs_cache:
self._inputs_cache[txid] = dict()
if txid not in self._outputs_cache:
self._outputs_cache[txid] = dict()
for i, inp in enumerate(wallet_txn.inputs):
self._inputs_cache[txid][i] = inp
if not isinstance(inp, CoinbaseInput) and inp.script.is_multisig_sig():
# Only keep the P2SH address
sig_info = inp.script.extract_multisig_sig_info()
redeem_version = Script.P2SH_TESTNET_VERSION if self.testnet \
else Script.P2SH_MAINNET_VERSION
a = key_hash_to_address(
sig_info['redeem_script'].hash160(), redeem_version)
addrs['inputs'][i] = [a]
# Update the status of any outputs
out_txid = str(inp.outpoint)
if out_txid not in self._outputs_cache:
self._outputs_cache[out_txid] = {}
if inp.outpoint_index not in self._outputs_cache[out_txid]:
d = dict(output=None,
status=status,
spend_txid=txid,
spend_index=i)
self._outputs_cache[out_txid][inp.outpoint_index] = d
else:
x = self._outputs_cache[out_txid][inp.outpoint_index]
x['status'] = status
x['spend_txid'] = txid
x['spend_index'] = i
for i, out in enumerate(wallet_txn.outputs):
if i in self._outputs_cache[txid]:
o = self._outputs_cache[txid][i]
o['output'] = out
# Only update the status if it is unconfirmed unspent going
# to confirmed unspent as it is possible that an input has
# already marked it as spent.
if not (o['status'] & self.SPENT):
o['status'] = out_status
else:
self._outputs_cache[txid][i] = dict(output=out,
status=out_status,
spend_txid=None,
spend_index=None)
self._insert_txid(txid, addrs['inputs'], 'input')
self._insert_txid(txid, addrs['outputs'], 'output')
self._dirty = True