def sweep(klass, privkeys, network, to_address, fee):
inputs = []
for privkey in privkeys:
pubkey = public_key_from_private_key(privkey, chainparams.get_active_chain().wif_version)
address = address_from_private_key(privkey,
chainparams.get_active_chain().p2pkh_version, chainparams.get_active_chain().wif_version)
u = network.synchronous_get([ ('blockchain.address.listunspent',[address])])[0]
pay_script = klass.pay_script('address', address)
for item in u:
item['scriptPubKey'] = pay_script
item['redeemPubkey'] = pubkey
item['address'] = address
item['prevout_hash'] = item['tx_hash']
item['prevout_n'] = item['tx_pos']
item['pubkeys'] = [pubkey]
item['x_pubkeys'] = [None]
item['signatures'] = [None]
item['num_sig'] = 1
inputs += u
if not inputs:
return
total = sum( map(lambda x:int(x.get('value')), inputs) ) - fee
outputs = [('address', to_address, total)]
self = klass(inputs, outputs)
self.sign({ pubkey:privkey })
return self
def __init__(self, v):
self.active_chain = chainparams.get_active_chain()
self.receiving_pubkeys = v.get('receiving', [])
self.change_pubkeys = v.get('change', [])
# addresses will not be stored on disk
self.receiving_addresses = map(self.pubkeys_to_address, self.receiving_pubkeys)
self.change_addresses = map(self.pubkeys_to_address, self.change_pubkeys)
def _get_address_from_output_script(decoded, matches, active_chain=None):
"""Find address in output script. matches is a list of tuples of the form:
( opcodes_to_match (list),
address type (str),
index in script where address is (int),
actions to take on extracted data (list) )
actions to take on extracted data may contain one or more of
the following to have the corresponding effect on the extracted data, "data":
- 'encode': data.encode('hex')
- 'address': hash_160_to_bc_address(data, p2pkh_version)
- 'p2sh': hash_160_to_bc_address(data, p2sh_version)
"""
if active_chain is None: active_chain = chainparams.get_active_chain()
for match, addr_type, data_index, actions in matches:
if match_decoded(decoded, match):
data = decoded[data_index][1]
# Convert to address
if addr_type == 'address':
addr_version = active_chain.p2pkh_version
if 'p2sh' in actions:
addr_version = active_chain.p2sh_version
data = hash_160_to_bc_address(data, addr_version)
# Encode in hex if necessary
if 'encode' in actions:
data = data.encode('hex')
return addr_type, data
return "(None)", "(None)"
def __init__(self, inputs, outputs, locktime=0, active_chain=None):
"""Create a new transaction.
Args:
inputs (list): List of dicts. An input is a dict with the following items:
- coinbase (bool): Whether this is a coinbase input.
- prevout_hash (str): TxID containing the output that this input spends.
- prevout_n (int): Index of the output that this input spends.
- value (int): Value of the output that this input spends, in satoshis.
- address (str): Address of key(s) in this input's scriptSig.
- num_sig (int): Number of signatures this input requires.
- pubkeys (list): Strings of public keys in hex.
- x_pubkeys (list): Strings of extended public keys in hex.
- signatures (list): Strings of signatures in hex.
P2PKH inputs have a 'redeemPubkey' key; P2SH inputs have a 'redeemScript' key.
outputs (list): List of tuples. Output format:
(type, address, value)
- type is 'address' for P2PKH outputs, 'pubkey' for P2PK outputs,
or 'op_return' for null data outputs.
- address is an address for P2PKH outputs, a pubkey for P2PK outputs,
or raw bytes for null data outputs.
"""
self.inputs = inputs
self.outputs = outputs
self.locktime = locktime
self.raw = None
if active_chain is None:
active_chain = chainparams.get_active_chain()
self.active_chain = active_chain
def parse_servers(result, active_chain=None):
""" parse servers list into dict format"""
from version import PROTOCOL_VERSION
if active_chain is None:
active_chain = chainparams.get_active_chain()
defaultports = active_chain.DEFAULT_PORTS
servers = {}
for item in result:
host = item[1]
out = {}
version = None
pruning_level = '-'
if len(item) > 2:
for v in item[2]:
if re.match("[stgh]\d*", v):
protocol, port = v[0], v[1:]
if port == '': port = defaultports[protocol]
out[protocol] = port
elif re.match("v(.?)+", v):
version = v[1:]
elif re.match("p\d*", v):
pruning_level = v[1:]
if pruning_level == '': pruning_level = '0'
try:
is_recent = float(version)>=float(PROTOCOL_VERSION)
except Exception:
is_recent = False
if out and is_recent:
out['pruning'] = pruning_level
servers[host] = out
return servers
def get_address_from_output_script(bytes):
decoded = [ x for x in script_GetOp(bytes) ]
active_chain = chainparams.get_active_chain()
# The Genesis Block, self-payments, and pay-by-IP-address payments look like:
# 65 BYTES:... CHECKSIG
match = [ opcodes.OP_PUSHDATA4, opcodes.OP_CHECKSIG ]
if match_decoded(decoded, match):
return 'pubkey', decoded[0][1].encode('hex')
# Pay-by-Bitcoin-address TxOuts look like:
# DUP HASH160 20 BYTES:... EQUALVERIFY CHECKSIG
match = [ opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG ]
if match_decoded(decoded, match):
return 'address', hash_160_to_bc_address(decoded[2][1], active_chain.p2pkh_version)
# p2sh
match = [ opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUAL ]
if match_decoded(decoded, match):
return 'address', hash_160_to_bc_address(decoded[1][1], active_chain.p2sh_version)
# OP_RETURN
match = [ opcodes.OP_RETURN, opcodes.OP_PUSHDATA4 ]
if match_decoded(decoded, match):
return 'op_return', decoded[1][1]
return "(None)", "(None)"
def __init__(self, processor, config):
threading.Thread.__init__(self)
self.processor = processor
self.daemon = True
self.active_chain = chainparams.get_active_chain()
self.stratum_tcp_port = config.get('server', 'stratum_tcp_port')
self.stratum_http_port = config.get('server', 'stratum_http_port')
self.stratum_tcp_ssl_port = config.get('server', 'stratum_tcp_ssl_port')
self.stratum_http_ssl_port = config.get('server', 'stratum_http_ssl_port')
self.report_stratum_tcp_port = config.get('server', 'report_stratum_tcp_port')
self.report_stratum_http_port = config.get('server', 'report_stratum_http_port')
self.report_stratum_tcp_ssl_port = config.get('server', 'report_stratum_tcp_ssl_port')
self.report_stratum_http_ssl_port = config.get('server', 'report_stratum_http_ssl_port')
self.host = config.get('server', 'host')
self.report_host = config.get('server', 'report_host')
self.nick = config.get('server', 'irc_nick')
if self.report_stratum_tcp_port:
self.stratum_tcp_port = self.report_stratum_tcp_port
if self.report_stratum_http_port:
self.stratum_http_port = self.report_stratum_http_port
if self.report_stratum_tcp_ssl_port:
self.stratum_tcp_ssl_port = self.report_stratum_tcp_ssl_port
if self.report_stratum_http_ssl_port:
self.stratum_http_ssl_port = self.report_stratum_http_ssl_port
if self.report_host:
self.host = self.report_host
if not self.nick:
self.nick = Hash(self.host)[:5].encode("hex")
self.pruning = True
self.pruning_limit = config.get('leveldb', 'pruning_limit')
self.nick = self.active_chain.irc_nick_prefix + self.nick
self.password = None
def pick_random_server(hostmap = None, protocol = 's', exclude_set = set(), active_chain = None):
if hostmap is None:
if active_chain is None:
active_chain = chainparams.get_active_chain()
hostmap = active_chain.DEFAULT_SERVERS
eligible = list(set(filter_protocol(hostmap, protocol)) - exclude_set)
return random.choice(eligible) if eligible else None
def __init__(self, config, shared, test_reorgs):
self.dbpath = config.get('leveldb', 'path')
if not os.path.exists(self.dbpath):
os.mkdir(self.dbpath)
self.pruning_limit = config.getint('leveldb', 'pruning_limit')
self.shared = shared
self.hash_list = {}
self.parents = {}
self.test_reorgs = test_reorgs
try:
self.db_utxo = plyvel.DB(
os.path.join(self.dbpath, 'utxo'),
create_if_missing=True,
compression=None)
self.db_addr = plyvel.DB(
os.path.join(self.dbpath, 'addr'),
create_if_missing=True,
compression=None)
self.db_hist = plyvel.DB(
os.path.join(self.dbpath, 'hist'),
create_if_missing=True,
compression=None)
self.db_undo = plyvel.DB(
os.path.join(self.dbpath, 'undo'),
create_if_missing=True,
compression=None)
except:
logger.error('db init', exc_info=True)
self.shared.stop()
self.db_version = 3 # increase this when database needs to be updated
try:
self.last_hash, self.height, db_version = ast.literal_eval(
self.db_undo.get('height'))
print_log("Database version", self.db_version)
print_log("Blockchain height", self.height)
except:
print_log('initializing database')
self.height = 0
self.last_hash = chainparams.get_active_chain().genesis_hash
db_version = self.db_version
# write root
self.put_node('', {})
# check version
if self.db_version != db_version:
print_log(
"Your database '%s' is deprecated. Please create a new database"
% self.dbpath)
self.shared.stop()
return
# compute root hash
d = self.get_node('')
self.root_hash, v = self.get_node_hash('', d, None)
print_log("UTXO tree root hash:", self.root_hash.encode('hex'))
print_log("Coins in database:", v)
def __init__(self, config, shared):
Processor.__init__(self)
self.active_chain = chainparams.get_active_chain()
self.mtimes = {} # monitoring
self.shared = shared
self.config = config
self.up_to_date = False
self.watch_lock = threading.Lock()
self.watch_blocks = []
self.watch_headers = []
self.watched_addresses = {}
self.block_cache = OrderedDict()
try:
self.block_cache_size = config.getint('server', 'block_cache_size')
except ConfigParser.NoOptionError:
self.block_cache_size = default_block_cache_size
self.history_cache = {}
self.max_cache_size = 100000
self.chunk_cache = {}
self.cache_lock = threading.Lock()
self.headers_data = ''
self.headers_path = config.get('leveldb', 'path')
self.mempool_values = {}
self.mempool_addresses = {}
self.mempool_hist = {}
self.mempool_hashes = set([])
self.mempool_lock = threading.Lock()
self.address_queue = Queue()
try:
self.test_reorgs = config.getboolean('leveldb', 'test_reorgs') # simulate random blockchain reorgs
except:
self.test_reorgs = False
self.storage = Storage(config, shared, self.test_reorgs)
self.dblock = threading.Lock()
self.bitcoind_url = 'http://%s:%s@%s:%s/' % (
config.get('bitcoind', 'bitcoind_user'),
config.get('bitcoind', 'bitcoind_password'),
config.get('bitcoind', 'bitcoind_host'),
config.get('bitcoind', 'bitcoind_port'))
self.sent_height = 0
self.sent_header = None
# catch_up headers
self.init_headers(self.storage.height)
self.blockchain_thread = threading.Thread(target = self.do_catch_up)
self.blockchain_thread.start()
def getheader(self, height, deserialized=False):
"""Retrieve the block header at a given height."""
header = self.network.get_header(int(height))
if not header or isinstance(header, unicode):
return 'Error: Unknown block'
# genesis block
if header.get('prev_block_hash') is None and header.get('block_height') == 0:
header['prev_block_hash'] = '0'*64
return header if deserialized else chainparams.get_active_chain().header_to_string(header)
def dumpconfig(self, above_chain=False):
"""Dump the contents of your configuration file."""
if above_chain:
return self.config.user_config
chain = chainparams.get_active_chain().code
chain_config = self.config.get_chain_config(chain)
if chain_config is not None:
return chain_config
else:
return 'Error: No configuration section for chain "{}"'.format(chain)
def DecodeBase58Check(psz):
vchRet = b58decode(psz, None)
key = vchRet[0:-4]
csum = vchRet[-4:]
hash = chainparams.get_active_chain().base58_hash(key)
cs32 = hash[0:4]
if cs32 != csum:
return None
else:
return key
def DecodeBase58Check(psz):
vchRet = b58decode(psz, None)
key = vchRet[0:-4]
csum = vchRet[-4:]
hash = chainparams.get_active_chain().base58_hash(key)
cs32 = hash[0:4]
if cs32 != csum:
return None
else:
return key
def hash_160_to_address(h160, addrtype = None):
""" Checks if the provided hash is actually 160bits or 20 bytes long and returns the address, else None
"""
active_chain = chainparams.get_active_chain()
if addrtype is None:
addrtype = active_chain.p2pkh_version
if h160 is None or len(h160) is not 20:
return None
vh160 = chr(addrtype) + h160
h = active_chain.base58_hash(vh160)
addr = vh160 + h[0:4]
return b58encode(addr)
def hash_160_to_address(h160, addrtype=None):
""" Checks if the provided hash is actually 160bits or 20 bytes long and returns the address, else None
"""
active_chain = chainparams.get_active_chain()
if addrtype is None:
addrtype = active_chain.p2pkh_version
if h160 is None or len(h160) is not 20:
return None
vh160 = chr(addrtype) + h160
h = active_chain.base58_hash(vh160)
addr = vh160 + h[0:4]
return b58encode(addr)
def filter_protocol(hostmap = None, protocol = 's', active_chain = None):
'''Filters the hostmap for those implementing protocol.
The result is a list in serialized form.'''
if hostmap is None:
if active_chain is None:
active_chain = chainparams.get_active_chain()
hostmap = active_chain.DEFAULT_SERVERS
eligible = []
for host, portmap in hostmap.items():
port = portmap.get(protocol)
if port:
eligible.append(serialize_server(host, port, protocol))
return eligible
def __init__(self, pipe, config=None, active_chain=None):
if config is None:
config = {} # Do not use mutables as default values!
util.DaemonThread.__init__(self)
self.config = SimpleConfig(config) if type(config) == type({}) else config
if active_chain is None:
active_chain = chainparams.get_active_chain()
self.active_chain = active_chain
self.num_server = 8 if not self.config.get('oneserver') else 0
self.blockchain = Blockchain(self.config, self, self.active_chain)
self.queue = Queue.Queue()
self.requests_queue = pipe.send_queue
self.response_queue = pipe.get_queue
# run() will block while this event is cleared
self.chain_switched = threading.Event()
self.chain_switched.set()
# A deque of interface header requests, processed left-to-right
self.bc_requests = deque()
# Server for addresses and transactions
self.sanitize_default_server()
self.irc_servers = {} # returned by interface (list from irc)
self.recent_servers = self.read_recent_servers()
self.banner = ''
self.heights = {}
self.merkle_roots = {}
self.utxo_roots = {}
dir_path = os.path.join( self.config.path, 'certs')
if not os.path.exists(dir_path):
os.mkdir(dir_path)
# subscriptions and requests
self.subscribed_addresses = set()
# cached address status
self.addr_responses = {}
# unanswered requests
self.unanswered_requests = {}
# retry times
self.server_retry_time = time.time()
self.nodes_retry_time = time.time()
# kick off the network. interface is the main server we are currently
# communicating with. interfaces is the set of servers we are connecting
# to or have an ongoing connection with
self.interface = None
self.interfaces = {}
self.start_network(deserialize_server(self.default_server)[2],
deserialize_proxy(self.config.get('proxy')))
def parse_URI(uri, active_chain=None):
import urlparse
import bitcoin
from decimal import Decimal
import chainparams
if active_chain is None:
active_chain = chainparams.get_active_chain()
if ':' not in uri:
assert bitcoin.is_address(uri, active_chain)
return uri, None, None, None, None
uri_scheme = active_chain.coin_name.lower()
u = urlparse.urlparse(uri)
assert u.scheme == uri_scheme
address = u.path
valid_address = bitcoin.is_address(address, active_chain)
pq = urlparse.parse_qs(u.query)
for k, v in pq.items():
if len(v)!=1:
raise Exception('Duplicate Key', k)
amount = label = message = request_url = ''
if 'amount' in pq:
am = pq['amount'][0]
m = re.match('([0-9\.]+)X([0-9])', am)
if m:
k = int(m.group(2)) - 8
amount = Decimal(m.group(1)) * pow( Decimal(10) , k)
else:
amount = Decimal(am) * 100000000
if 'message' in pq:
message = pq['message'][0]
if 'label' in pq:
label = pq['label'][0]
if 'r' in pq:
request_url = pq['r'][0]
if request_url != '':
return address, amount, label, message, request_url
assert valid_address
return address, amount, label, message, request_url
def __init__(self, config, network):
threading.Thread.__init__(self)
self.daemon = True
self.config = config
self.active_chain = chainparams.get_active_chain()
self.chunk_size = self.active_chain.chunk_size
self.network = network
self.lock = threading.Lock()
self.local_height = 0
self.running = False
# Currently disabled until chain-specific URLs implemented
self.headers_url = "" #'http://headers.electrum.org/blockchain_headers'
self.set_local_height()
self.queue = Queue.Queue()
def pay_script(self, type, addr, active_chain=None):
if active_chain is None:
active_chain = chainparams.get_active_chain()
self.active_chain = active_chain
if type == 'op_return':
return null_output_script(addr)
else:
assert type == 'address'
script = []
addrtype, hash_160 = bc_address_to_hash_160(addr)
if addrtype == self.active_chain.p2pkh_version:
script.append(p2pkh_script(hash_160))
elif addrtype == self.active_chain.p2sh_version:
script.append(p2sh_script(hash_160))
else:
raise
return ''.join(script)
def __init__(self, config=None):
if config is None:
config = {} # Do not use mutables as default values!
threading.Thread.__init__(self)
self.daemon = True
self.config = SimpleConfig(config) if type(config) == type({}) else config
self.active_chain = chainparams.get_active_chain()
self.default_servers = self.active_chain.DEFAULT_SERVERS
self.lock = threading.Lock()
self.num_server = 8 if not self.config.get('oneserver') else 0
self.blockchain = Blockchain(self.config, self)
self.interfaces = {}
self.queue = Queue.Queue()
self.protocol = self.config.get('protocol','s')
self.running = False
# Server for addresses and transactions
self.default_server = self.config.get('server')
if not self.default_server:
self.default_server = pick_random_server(self.protocol)
self.irc_servers = {} # returned by interface (list from irc)
self.disconnected_servers = set([])
self.disconnected_time = time.time()
self.recent_servers = self.config.get('recent_servers',[]) # successful connections
self.pending_servers = set()
self.banner = ''
self.interface = None
self.proxy = self.config.get('proxy')
self.heights = {}
self.merkle_roots = {}
self.utxo_roots = {}
dir_path = os.path.join( self.config.path, 'certs')
if not os.path.exists(dir_path):
os.mkdir(dir_path)
# address subscriptions and cached results
self.addresses = {}
self.connection_status = 'connecting'
self.requests_queue = Queue.Queue()
def pay_script(self, type, addr):
self.chain = chainparams.get_active_chain()
if type == 'op_return':
h = addr.encode('hex')
return '6a' + push_script(h)
else:
assert type == 'address'
addrtype, hash_160 = bc_address_to_hash_160(addr)
if addrtype == self.chain.p2pkh_version:
script = '76a9' # op_dup, op_hash_160
script += push_script(hash_160.encode('hex'))
script += '88ac' # op_equalverify, op_checksig
elif addrtype == self.chain.p2sh_version:
script = 'a9' # op_hash_160
script += push_script(hash_160.encode('hex'))
script += '87' # op_equal
else:
raise
return script
def switch_chains(self, chaincode=None):
if chaincode is None:
chain = chainparams.get_active_chain()
else:
chain = chainparams.get_chain_instance(chaincode)
self.chain_switched.clear()
self.active_chain = chain
if self.config.get_active_chain_code() != self.active_chain.code:
self.config.set_active_chain_code(self.active_chain.code)
self.print_error('switching chains to {}'.format(chain.code))
self.stop_network()
time.sleep(0.2)
self.bc_requests.clear()
self.blockchain = Blockchain(self.config, self, self.active_chain)
self.queue = Queue.Queue()
self.sanitize_default_server()
self.irc_servers = {} # returned by interface (list from irc)
self.recent_servers = self.read_recent_servers()
self.banner = ''
self.heights = {}
self.merkle_roots = {}
self.utxo_roots = {}
self.interface = None
self.interfaces = {}
# subscriptions and requests
self.subscribed_addresses = set()
# cached address status
self.addr_responses = {}
# unanswered requests
self.unanswered_requests = {}
self.blockchain.init()
# Start the new network
self.start_network(deserialize_server(self.default_server)[2],
deserialize_proxy(self.config.get('proxy')))
time.sleep(0.2)
self.chain_switched.set()
def get_address_from_output_script(bytes, active_chain=None):
if active_chain is None:
active_chain = chainparams.get_active_chain()
decoded = [ x for x in script_GetOp(bytes) ]
# list of (opcodes_list, addr_type, addr_data_index, [actions_to_take])
# actions_to_take contains things such as 'encode' if the data should be hex-encoded.
matches = [
# The Genesis Block, self-payments, and pay-by-IP-address payments
([ opcodes.OP_PUSHDATA4, opcodes.OP_CHECKSIG ], 'pubkey', 0, ['encode']),
# Pay-to-Public-Key-Hash
([ opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG ], 'address', 2, [None]),
# Pay-to-Script-Hash
([ opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUAL ], 'address', 1, ['p2sh']),
# OP_RETURN (null output)
([ opcodes.OP_RETURN, opcodes.OP_PUSHDATA4 ], 'op_return', 1, [None])
]
run_chainhook('transaction_get_address_from_output_script', opcodes, matches)
return _get_address_from_output_script(decoded, matches, active_chain)
def parse_xpub(x_pubkey):
active_chain = chainparams.get_active_chain()
if x_pubkey[0:2] in ['02','03','04']:
pubkey = x_pubkey
elif x_pubkey[0:2] == 'ff':
from account import BIP32_Account
xpub, s = BIP32_Account.parse_xpubkey(x_pubkey)
pubkey = BIP32_Account.derive_pubkey_from_xpub(xpub, s[0], s[1])
elif x_pubkey[0:2] == 'fe':
from account import OldAccount
mpk, s = OldAccount.parse_xpubkey(x_pubkey)
pubkey = OldAccount.get_pubkey_from_mpk(mpk.decode('hex'), s[0], s[1])
elif x_pubkey[0:2] == 'fd':
addrtype = ord(x_pubkey[2:4].decode('hex'))
hash160 = x_pubkey[4:].decode('hex')
pubkey = None
address = hash_160_to_bc_address(hash160, active_chain.p2pkh_version)
else:
raise BaseException("Cannnot parse pubkey")
if pubkey:
address = public_key_to_bc_address(pubkey.decode('hex'), active_chain.p2pkh_version)
return pubkey, address
def validateaddress(self, address, above_chain=False):
"""Check that the address is valid. """
if above_chain:
return is_valid(address)
return is_valid(address, chainparams.get_active_chain())
def deserialize(klass, raw):
self = klass([],[])
self.chain = chainparams.get_active_chain()
self.update(raw)
return self
def parse_scriptSig(d, bytes, active_chain=None):
if active_chain is None:
active_chain = chainparams.get_active_chain()
try:
decoded = [ x for x in script_GetOp(bytes) ]
except Exception:
# coinbase transactions raise an exception
print_error("cannot find address in input script", bytes.encode('hex'))
return
# payto_pubkey
match = [ opcodes.OP_PUSHDATA4 ]
if match_decoded(decoded, match):
sig = decoded[0][1].encode('hex')
d['address'] = "(pubkey)"
d['signatures'] = [sig]
d['num_sig'] = 1
d['x_pubkeys'] = ["(pubkey)"]
d['pubkeys'] = ["(pubkey)"]
return
# non-generated TxIn transactions push a signature
# (seventy-something bytes) and then their public key
# (65 bytes) onto the stack:
match = [ opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4 ]
if match_decoded(decoded, match):
sig = decoded[0][1].encode('hex')
x_pubkey = decoded[1][1].encode('hex')
try:
signatures = parse_sig([sig])
pubkey, address = parse_xpub(x_pubkey, active_chain)
except:
import traceback
traceback.print_exc(file=sys.stdout)
print_error("cannot find address in input script", bytes.encode('hex'))
return
d['signatures'] = signatures
d['x_pubkeys'] = [x_pubkey]
d['num_sig'] = 1
d['pubkeys'] = [pubkey]
d['address'] = address
return
# p2sh transaction, m of n
match = [ opcodes.OP_0 ]
while len(match) < len(decoded):
match.append(opcodes.OP_PUSHDATA4)
if not match_decoded(decoded, match):
print_error("cannot find address in input script", bytes.encode('hex'))
return
x_sig = map(lambda x:x[1].encode('hex'), decoded[1:-1])
d['signatures'] = parse_sig(x_sig)
dec2 = [ x for x in script_GetOp(decoded[-1][1]) ]
multis_m = multis_n = None
multis_mn = match_decoded_multisig(dec2)
if multis_mn:
multis_m = multis_mn[0]
multis_n = multis_mn[1]
x_pubkeys = map(lambda x:x[1].encode('hex'), dec2[1:-2])
d['num_sig'] = multis_m
else:
print_error("cannot find address in input script", bytes.encode('hex'))
return
d['x_pubkeys'] = x_pubkeys
pubkeys = map(lambda x: parse_xpub(x)[0], x_pubkeys)
d['pubkeys'] = pubkeys
redeemScript = multisig_script(pubkeys,multis_m)
d['redeemScript'] = redeemScript
d['address'] = hash_160_to_bc_address(hash_160(redeemScript.decode('hex')), active_chain.p2sh_version)
def pick_random_server(p='s'):
try:
servers = chainparams.get_active_chain().DEFAULT_SERVERS
except:
servers = DEFAULT_SERVERS
return random.choice( filter_protocol(servers,p) )
def switch_to_active_chain(self):
"""Create a new Network instance or send message to daemon."""
with self.lock:
# for the network.switch_chains request
message_id = self.message_id
self.message_id = 0
self.unanswered_requests = {}
self.subscriptions = {}
self.pending_transactions_for_notifications = []
self.callbacks = {}
self.status = 'connecting'
self.servers = {}
self.banner = ''
self.blockchain_height = 0
self.server_height = 0
self.interfaces = []
# Not daemon, probably running GUI
if self.network:
self.network.switch_chains()
for key in ['status','banner','updated','servers','interfaces']:
value = self.network.get_status_value(key)
self.pipe.get_queue.put({'method':'network.status', 'params':[key, value]})
# Daemon is running
else:
req = {'id': message_id, 'method': 'network.switch_chains', 'params':[chainparams.get_active_chain().code]}
self.pipe.send(req)
def createmultisig(self, num, pubkeys):
"""Create multisig address"""
assert isinstance(pubkeys, list), (type(num), type(pubkeys))
redeem_script = script.multisig_script(pubkeys, num)
address = hash_160_to_bc_address(hash_160(redeem_script.decode('hex')), chainparams.get_active_chain().p2sh_version)
return {'address':address, 'redeemScript':redeem_script}
