593 lines
21 KiB
Python
593 lines
21 KiB
Python
# Copyright (c) 2014-2015 The Bitcoin Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
|
|
#
|
|
# Helpful routines for regression testing
|
|
#
|
|
|
|
# Add python-bitcoinrpc to module search path:
|
|
import os
|
|
import sys
|
|
|
|
from binascii import hexlify, unhexlify
|
|
from base64 import b64encode
|
|
from decimal import Decimal, ROUND_DOWN
|
|
import json
|
|
import random
|
|
import shutil
|
|
import subprocess
|
|
import time
|
|
import re
|
|
import errno
|
|
|
|
from . import coverage
|
|
from .authproxy import AuthServiceProxy, JSONRPCException
|
|
|
|
COVERAGE_DIR = None
|
|
|
|
#Set Mocktime default to OFF.
|
|
#MOCKTIME is only needed for scripts that use the
|
|
#cached version of the blockchain. If the cached
|
|
#version of the blockchain is used without MOCKTIME
|
|
#then the mempools will not sync due to IBD.
|
|
MOCKTIME = 0
|
|
|
|
def enable_mocktime():
|
|
#For backwared compatibility of the python scripts
|
|
#with previous versions of the cache, set MOCKTIME
|
|
#to Jan 1, 2014 + (201 * 10 * 60)
|
|
global MOCKTIME
|
|
MOCKTIME = 1388534400 + (201 * 10 * 60)
|
|
|
|
def disable_mocktime():
|
|
global MOCKTIME
|
|
MOCKTIME = 0
|
|
|
|
def get_mocktime():
|
|
return MOCKTIME
|
|
|
|
def enable_coverage(dirname):
|
|
"""Maintain a log of which RPC calls are made during testing."""
|
|
global COVERAGE_DIR
|
|
COVERAGE_DIR = dirname
|
|
|
|
|
|
def get_rpc_proxy(url, node_number, timeout=None):
|
|
"""
|
|
Args:
|
|
url (str): URL of the RPC server to call
|
|
node_number (int): the node number (or id) that this calls to
|
|
|
|
Kwargs:
|
|
timeout (int): HTTP timeout in seconds
|
|
|
|
Returns:
|
|
AuthServiceProxy. convenience object for making RPC calls.
|
|
|
|
"""
|
|
proxy_kwargs = {}
|
|
if timeout is not None:
|
|
proxy_kwargs['timeout'] = timeout
|
|
|
|
proxy = AuthServiceProxy(url, **proxy_kwargs)
|
|
proxy.url = url # store URL on proxy for info
|
|
|
|
coverage_logfile = coverage.get_filename(
|
|
COVERAGE_DIR, node_number) if COVERAGE_DIR else None
|
|
|
|
return coverage.AuthServiceProxyWrapper(proxy, coverage_logfile)
|
|
|
|
|
|
def p2p_port(n):
|
|
return 11000 + n + os.getpid()%999
|
|
def rpc_port(n):
|
|
return 12000 + n + os.getpid()%999
|
|
|
|
def check_json_precision():
|
|
"""Make sure json library being used does not lose precision converting BTC values"""
|
|
n = Decimal("20000000.00000003")
|
|
satoshis = int(json.loads(json.dumps(float(n)))*1.0e8)
|
|
if satoshis != 2000000000000003:
|
|
raise RuntimeError("JSON encode/decode loses precision")
|
|
|
|
def count_bytes(hex_string):
|
|
return len(bytearray.fromhex(hex_string))
|
|
|
|
def bytes_to_hex_str(byte_str):
|
|
return hexlify(byte_str).decode('ascii')
|
|
|
|
def hex_str_to_bytes(hex_str):
|
|
return unhexlify(hex_str.encode('ascii'))
|
|
|
|
def str_to_b64str(string):
|
|
return b64encode(string.encode('utf-8')).decode('ascii')
|
|
|
|
def sync_blocks(rpc_connections, wait=1):
|
|
"""
|
|
Wait until everybody has the same block count
|
|
"""
|
|
while True:
|
|
counts = [ x.getblockcount() for x in rpc_connections ]
|
|
if counts == [ counts[0] ]*len(counts):
|
|
break
|
|
time.sleep(wait)
|
|
|
|
def sync_mempools(rpc_connections, wait=1):
|
|
"""
|
|
Wait until everybody has the same transactions in their memory
|
|
pools
|
|
"""
|
|
while True:
|
|
pool = set(rpc_connections[0].getrawmempool())
|
|
num_match = 1
|
|
for i in range(1, len(rpc_connections)):
|
|
if set(rpc_connections[i].getrawmempool()) == pool:
|
|
num_match = num_match+1
|
|
if num_match == len(rpc_connections):
|
|
break
|
|
time.sleep(wait)
|
|
|
|
bitcoind_processes = {}
|
|
|
|
def initialize_datadir(dirname, n):
|
|
datadir = os.path.join(dirname, "node"+str(n))
|
|
if not os.path.isdir(datadir):
|
|
os.makedirs(datadir)
|
|
with open(os.path.join(datadir, "bitcoin.conf"), 'w') as f:
|
|
f.write("regtest=1\n")
|
|
f.write("rpcuser=rt\n")
|
|
f.write("rpcpassword=rt\n")
|
|
f.write("port="+str(p2p_port(n))+"\n")
|
|
f.write("rpcport="+str(rpc_port(n))+"\n")
|
|
f.write("listenonion=0\n")
|
|
return datadir
|
|
|
|
def rpc_url(i, rpchost=None):
|
|
return "http://rt:rt@%s:%d" % (rpchost or '127.0.0.1', rpc_port(i))
|
|
|
|
def wait_for_bitcoind_start(process, url, i):
|
|
'''
|
|
Wait for bitcoind to start. This means that RPC is accessible and fully initialized.
|
|
Raise an exception if bitcoind exits during initialization.
|
|
'''
|
|
while True:
|
|
if process.poll() is not None:
|
|
raise Exception('bitcoind exited with status %i during initialization' % process.returncode)
|
|
try:
|
|
rpc = get_rpc_proxy(url, i)
|
|
blocks = rpc.getblockcount()
|
|
break # break out of loop on success
|
|
except IOError as e:
|
|
if e.errno != errno.ECONNREFUSED: # Port not yet open?
|
|
raise # unknown IO error
|
|
except JSONRPCException as e: # Initialization phase
|
|
if e.error['code'] != -28: # RPC in warmup?
|
|
raise # unkown JSON RPC exception
|
|
time.sleep(0.25)
|
|
|
|
def initialize_chain(test_dir):
|
|
"""
|
|
Create (or copy from cache) a 200-block-long chain and
|
|
4 wallets.
|
|
"""
|
|
|
|
if (not os.path.isdir(os.path.join("cache","node0"))
|
|
or not os.path.isdir(os.path.join("cache","node1"))
|
|
or not os.path.isdir(os.path.join("cache","node2"))
|
|
or not os.path.isdir(os.path.join("cache","node3"))):
|
|
|
|
#find and delete old cache directories if any exist
|
|
for i in range(4):
|
|
if os.path.isdir(os.path.join("cache","node"+str(i))):
|
|
shutil.rmtree(os.path.join("cache","node"+str(i)))
|
|
|
|
# Create cache directories, run bitcoinds:
|
|
for i in range(4):
|
|
datadir=initialize_datadir("cache", i)
|
|
args = [ os.getenv("BITCOIND", "bitcoind"), "-server", "-keypool=1", "-datadir="+datadir, "-discover=0" ]
|
|
if i > 0:
|
|
args.append("-connect=127.0.0.1:"+str(p2p_port(0)))
|
|
bitcoind_processes[i] = subprocess.Popen(args)
|
|
if os.getenv("PYTHON_DEBUG", ""):
|
|
print "initialize_chain: bitcoind started, waiting for RPC to come up"
|
|
wait_for_bitcoind_start(bitcoind_processes[i], rpc_url(i), i)
|
|
if os.getenv("PYTHON_DEBUG", ""):
|
|
print "initialize_chain: RPC succesfully started"
|
|
|
|
rpcs = []
|
|
for i in range(4):
|
|
try:
|
|
rpcs.append(get_rpc_proxy(rpc_url(i), i))
|
|
except:
|
|
sys.stderr.write("Error connecting to "+url+"\n")
|
|
sys.exit(1)
|
|
|
|
# Create a 200-block-long chain; each of the 4 nodes
|
|
# gets 25 mature blocks and 25 immature.
|
|
# blocks are created with timestamps 10 minutes apart
|
|
# starting from 2010 minutes in the past
|
|
enable_mocktime()
|
|
block_time = get_mocktime() - (201 * 10 * 60)
|
|
for i in range(2):
|
|
for peer in range(4):
|
|
for j in range(25):
|
|
set_node_times(rpcs, block_time)
|
|
rpcs[peer].generate(1)
|
|
block_time += 10*60
|
|
# Must sync before next peer starts generating blocks
|
|
sync_blocks(rpcs)
|
|
|
|
# Shut them down, and clean up cache directories:
|
|
stop_nodes(rpcs)
|
|
wait_bitcoinds()
|
|
disable_mocktime()
|
|
for i in range(4):
|
|
os.remove(log_filename("cache", i, "debug.log"))
|
|
os.remove(log_filename("cache", i, "db.log"))
|
|
os.remove(log_filename("cache", i, "peers.dat"))
|
|
os.remove(log_filename("cache", i, "fee_estimates.dat"))
|
|
|
|
for i in range(4):
|
|
from_dir = os.path.join("cache", "node"+str(i))
|
|
to_dir = os.path.join(test_dir, "node"+str(i))
|
|
shutil.copytree(from_dir, to_dir)
|
|
initialize_datadir(test_dir, i) # Overwrite port/rpcport in bitcoin.conf
|
|
|
|
def initialize_chain_clean(test_dir, num_nodes):
|
|
"""
|
|
Create an empty blockchain and num_nodes wallets.
|
|
Useful if a test case wants complete control over initialization.
|
|
"""
|
|
for i in range(num_nodes):
|
|
datadir=initialize_datadir(test_dir, i)
|
|
|
|
|
|
def _rpchost_to_args(rpchost):
|
|
'''Convert optional IP:port spec to rpcconnect/rpcport args'''
|
|
if rpchost is None:
|
|
return []
|
|
|
|
match = re.match('(\[[0-9a-fA-f:]+\]|[^:]+)(?::([0-9]+))?$', rpchost)
|
|
if not match:
|
|
raise ValueError('Invalid RPC host spec ' + rpchost)
|
|
|
|
rpcconnect = match.group(1)
|
|
rpcport = match.group(2)
|
|
|
|
if rpcconnect.startswith('['): # remove IPv6 [...] wrapping
|
|
rpcconnect = rpcconnect[1:-1]
|
|
|
|
rv = ['-rpcconnect=' + rpcconnect]
|
|
if rpcport:
|
|
rv += ['-rpcport=' + rpcport]
|
|
return rv
|
|
|
|
def start_node(i, dirname, extra_args=None, rpchost=None, timewait=None, binary=None):
|
|
"""
|
|
Start a bitcoind and return RPC connection to it
|
|
"""
|
|
datadir = os.path.join(dirname, "node"+str(i))
|
|
if binary is None:
|
|
binary = os.getenv("BITCOIND", "bitcoind")
|
|
args = [ binary, "-datadir="+datadir, "-server", "-keypool=1", "-discover=0", "-rest", "-mocktime="+str(get_mocktime()) ]
|
|
if extra_args is not None: args.extend(extra_args)
|
|
bitcoind_processes[i] = subprocess.Popen(args)
|
|
if os.getenv("PYTHON_DEBUG", ""):
|
|
print "start_node: bitcoind started, waiting for RPC to come up"
|
|
url = rpc_url(i, rpchost)
|
|
wait_for_bitcoind_start(bitcoind_processes[i], url, i)
|
|
if os.getenv("PYTHON_DEBUG", ""):
|
|
print "start_node: RPC succesfully started"
|
|
proxy = get_rpc_proxy(url, i, timeout=timewait)
|
|
|
|
if COVERAGE_DIR:
|
|
coverage.write_all_rpc_commands(COVERAGE_DIR, proxy)
|
|
|
|
return proxy
|
|
|
|
def start_nodes(num_nodes, dirname, extra_args=None, rpchost=None, binary=None):
|
|
"""
|
|
Start multiple bitcoinds, return RPC connections to them
|
|
"""
|
|
if extra_args is None: extra_args = [ None for i in range(num_nodes) ]
|
|
if binary is None: binary = [ None for i in range(num_nodes) ]
|
|
rpcs = []
|
|
try:
|
|
for i in range(num_nodes):
|
|
rpcs.append(start_node(i, dirname, extra_args[i], rpchost, binary=binary[i]))
|
|
except: # If one node failed to start, stop the others
|
|
stop_nodes(rpcs)
|
|
raise
|
|
return rpcs
|
|
|
|
def log_filename(dirname, n_node, logname):
|
|
return os.path.join(dirname, "node"+str(n_node), "regtest", logname)
|
|
|
|
def stop_node(node, i):
|
|
node.stop()
|
|
bitcoind_processes[i].wait()
|
|
del bitcoind_processes[i]
|
|
|
|
def stop_nodes(nodes):
|
|
for node in nodes:
|
|
node.stop()
|
|
del nodes[:] # Emptying array closes connections as a side effect
|
|
|
|
def set_node_times(nodes, t):
|
|
for node in nodes:
|
|
node.setmocktime(t)
|
|
|
|
def wait_bitcoinds():
|
|
# Wait for all bitcoinds to cleanly exit
|
|
for bitcoind in bitcoind_processes.values():
|
|
bitcoind.wait()
|
|
bitcoind_processes.clear()
|
|
|
|
def connect_nodes(from_connection, node_num):
|
|
ip_port = "127.0.0.1:"+str(p2p_port(node_num))
|
|
from_connection.addnode(ip_port, "onetry")
|
|
# poll until version handshake complete to avoid race conditions
|
|
# with transaction relaying
|
|
while any(peer['version'] == 0 for peer in from_connection.getpeerinfo()):
|
|
time.sleep(0.1)
|
|
|
|
def connect_nodes_bi(nodes, a, b):
|
|
connect_nodes(nodes[a], b)
|
|
connect_nodes(nodes[b], a)
|
|
|
|
def find_output(node, txid, amount):
|
|
"""
|
|
Return index to output of txid with value amount
|
|
Raises exception if there is none.
|
|
"""
|
|
txdata = node.getrawtransaction(txid, 1)
|
|
for i in range(len(txdata["vout"])):
|
|
if txdata["vout"][i]["value"] == amount:
|
|
return i
|
|
raise RuntimeError("find_output txid %s : %s not found"%(txid,str(amount)))
|
|
|
|
|
|
def gather_inputs(from_node, amount_needed, confirmations_required=1):
|
|
"""
|
|
Return a random set of unspent txouts that are enough to pay amount_needed
|
|
"""
|
|
assert(confirmations_required >=0)
|
|
utxo = from_node.listunspent(confirmations_required)
|
|
random.shuffle(utxo)
|
|
inputs = []
|
|
total_in = Decimal("0.00000000")
|
|
while total_in < amount_needed and len(utxo) > 0:
|
|
t = utxo.pop()
|
|
total_in += t["amount"]
|
|
inputs.append({ "txid" : t["txid"], "vout" : t["vout"], "address" : t["address"] } )
|
|
if total_in < amount_needed:
|
|
raise RuntimeError("Insufficient funds: need %d, have %d"%(amount_needed, total_in))
|
|
return (total_in, inputs)
|
|
|
|
def make_change(from_node, amount_in, amount_out, fee):
|
|
"""
|
|
Create change output(s), return them
|
|
"""
|
|
outputs = {}
|
|
amount = amount_out+fee
|
|
change = amount_in - amount
|
|
if change > amount*2:
|
|
# Create an extra change output to break up big inputs
|
|
change_address = from_node.getnewaddress()
|
|
# Split change in two, being careful of rounding:
|
|
outputs[change_address] = Decimal(change/2).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN)
|
|
change = amount_in - amount - outputs[change_address]
|
|
if change > 0:
|
|
outputs[from_node.getnewaddress()] = change
|
|
return outputs
|
|
|
|
def send_zeropri_transaction(from_node, to_node, amount, fee):
|
|
"""
|
|
Create&broadcast a zero-priority transaction.
|
|
Returns (txid, hex-encoded-txdata)
|
|
Ensures transaction is zero-priority by first creating a send-to-self,
|
|
then using its output
|
|
"""
|
|
|
|
# Create a send-to-self with confirmed inputs:
|
|
self_address = from_node.getnewaddress()
|
|
(total_in, inputs) = gather_inputs(from_node, amount+fee*2)
|
|
outputs = make_change(from_node, total_in, amount+fee, fee)
|
|
outputs[self_address] = float(amount+fee)
|
|
|
|
self_rawtx = from_node.createrawtransaction(inputs, outputs)
|
|
self_signresult = from_node.signrawtransaction(self_rawtx)
|
|
self_txid = from_node.sendrawtransaction(self_signresult["hex"], True)
|
|
|
|
vout = find_output(from_node, self_txid, amount+fee)
|
|
# Now immediately spend the output to create a 1-input, 1-output
|
|
# zero-priority transaction:
|
|
inputs = [ { "txid" : self_txid, "vout" : vout } ]
|
|
outputs = { to_node.getnewaddress() : float(amount) }
|
|
|
|
rawtx = from_node.createrawtransaction(inputs, outputs)
|
|
signresult = from_node.signrawtransaction(rawtx)
|
|
txid = from_node.sendrawtransaction(signresult["hex"], True)
|
|
|
|
return (txid, signresult["hex"])
|
|
|
|
def random_zeropri_transaction(nodes, amount, min_fee, fee_increment, fee_variants):
|
|
"""
|
|
Create a random zero-priority transaction.
|
|
Returns (txid, hex-encoded-transaction-data, fee)
|
|
"""
|
|
from_node = random.choice(nodes)
|
|
to_node = random.choice(nodes)
|
|
fee = min_fee + fee_increment*random.randint(0,fee_variants)
|
|
(txid, txhex) = send_zeropri_transaction(from_node, to_node, amount, fee)
|
|
return (txid, txhex, fee)
|
|
|
|
def random_transaction(nodes, amount, min_fee, fee_increment, fee_variants):
|
|
"""
|
|
Create a random transaction.
|
|
Returns (txid, hex-encoded-transaction-data, fee)
|
|
"""
|
|
from_node = random.choice(nodes)
|
|
to_node = random.choice(nodes)
|
|
fee = min_fee + fee_increment*random.randint(0,fee_variants)
|
|
|
|
(total_in, inputs) = gather_inputs(from_node, amount+fee)
|
|
outputs = make_change(from_node, total_in, amount, fee)
|
|
outputs[to_node.getnewaddress()] = float(amount)
|
|
|
|
rawtx = from_node.createrawtransaction(inputs, outputs)
|
|
signresult = from_node.signrawtransaction(rawtx)
|
|
txid = from_node.sendrawtransaction(signresult["hex"], True)
|
|
|
|
return (txid, signresult["hex"], fee)
|
|
|
|
def assert_equal(thing1, thing2):
|
|
if thing1 != thing2:
|
|
raise AssertionError("%s != %s"%(str(thing1),str(thing2)))
|
|
|
|
def assert_greater_than(thing1, thing2):
|
|
if thing1 <= thing2:
|
|
raise AssertionError("%s <= %s"%(str(thing1),str(thing2)))
|
|
|
|
def assert_raises(exc, fun, *args, **kwds):
|
|
try:
|
|
fun(*args, **kwds)
|
|
except exc:
|
|
pass
|
|
except Exception as e:
|
|
raise AssertionError("Unexpected exception raised: "+type(e).__name__)
|
|
else:
|
|
raise AssertionError("No exception raised")
|
|
|
|
def assert_is_hex_string(string):
|
|
try:
|
|
int(string, 16)
|
|
except Exception as e:
|
|
raise AssertionError(
|
|
"Couldn't interpret %r as hexadecimal; raised: %s" % (string, e))
|
|
|
|
def assert_is_hash_string(string, length=64):
|
|
if not isinstance(string, basestring):
|
|
raise AssertionError("Expected a string, got type %r" % type(string))
|
|
elif length and len(string) != length:
|
|
raise AssertionError(
|
|
"String of length %d expected; got %d" % (length, len(string)))
|
|
elif not re.match('[abcdef0-9]+$', string):
|
|
raise AssertionError(
|
|
"String %r contains invalid characters for a hash." % string)
|
|
|
|
def assert_array_result(object_array, to_match, expected, should_not_find = False):
|
|
"""
|
|
Pass in array of JSON objects, a dictionary with key/value pairs
|
|
to match against, and another dictionary with expected key/value
|
|
pairs.
|
|
If the should_not_find flag is true, to_match should not be found
|
|
in object_array
|
|
"""
|
|
if should_not_find == True:
|
|
expected = { }
|
|
num_matched = 0
|
|
for item in object_array:
|
|
all_match = True
|
|
for key,value in to_match.items():
|
|
if item[key] != value:
|
|
all_match = False
|
|
if not all_match:
|
|
continue
|
|
elif should_not_find == True:
|
|
num_matched = num_matched+1
|
|
for key,value in expected.items():
|
|
if item[key] != value:
|
|
raise AssertionError("%s : expected %s=%s"%(str(item), str(key), str(value)))
|
|
num_matched = num_matched+1
|
|
if num_matched == 0 and should_not_find != True:
|
|
raise AssertionError("No objects matched %s"%(str(to_match)))
|
|
if num_matched > 0 and should_not_find == True:
|
|
raise AssertionError("Objects were found %s"%(str(to_match)))
|
|
|
|
def satoshi_round(amount):
|
|
return Decimal(amount).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN)
|
|
|
|
# Helper to create at least "count" utxos
|
|
# Pass in a fee that is sufficient for relay and mining new transactions.
|
|
def create_confirmed_utxos(fee, node, count):
|
|
node.generate(int(0.5*count)+101)
|
|
utxos = node.listunspent()
|
|
iterations = count - len(utxos)
|
|
addr1 = node.getnewaddress()
|
|
addr2 = node.getnewaddress()
|
|
if iterations <= 0:
|
|
return utxos
|
|
for i in xrange(iterations):
|
|
t = utxos.pop()
|
|
inputs = []
|
|
inputs.append({ "txid" : t["txid"], "vout" : t["vout"]})
|
|
outputs = {}
|
|
send_value = t['amount'] - fee
|
|
outputs[addr1] = satoshi_round(send_value/2)
|
|
outputs[addr2] = satoshi_round(send_value/2)
|
|
raw_tx = node.createrawtransaction(inputs, outputs)
|
|
signed_tx = node.signrawtransaction(raw_tx)["hex"]
|
|
txid = node.sendrawtransaction(signed_tx)
|
|
|
|
while (node.getmempoolinfo()['size'] > 0):
|
|
node.generate(1)
|
|
|
|
utxos = node.listunspent()
|
|
assert(len(utxos) >= count)
|
|
return utxos
|
|
|
|
# Create large OP_RETURN txouts that can be appended to a transaction
|
|
# to make it large (helper for constructing large transactions).
|
|
def gen_return_txouts():
|
|
# Some pre-processing to create a bunch of OP_RETURN txouts to insert into transactions we create
|
|
# So we have big transactions (and therefore can't fit very many into each block)
|
|
# create one script_pubkey
|
|
script_pubkey = "6a4d0200" #OP_RETURN OP_PUSH2 512 bytes
|
|
for i in xrange (512):
|
|
script_pubkey = script_pubkey + "01"
|
|
# concatenate 128 txouts of above script_pubkey which we'll insert before the txout for change
|
|
txouts = "81"
|
|
for k in xrange(128):
|
|
# add txout value
|
|
txouts = txouts + "0000000000000000"
|
|
# add length of script_pubkey
|
|
txouts = txouts + "fd0402"
|
|
# add script_pubkey
|
|
txouts = txouts + script_pubkey
|
|
return txouts
|
|
|
|
def create_tx(node, coinbase, to_address, amount):
|
|
inputs = [{ "txid" : coinbase, "vout" : 0}]
|
|
outputs = { to_address : amount }
|
|
rawtx = node.createrawtransaction(inputs, outputs)
|
|
signresult = node.signrawtransaction(rawtx)
|
|
assert_equal(signresult["complete"], True)
|
|
return signresult["hex"]
|
|
|
|
# Create a spend of each passed-in utxo, splicing in "txouts" to each raw
|
|
# transaction to make it large. See gen_return_txouts() above.
|
|
def create_lots_of_big_transactions(node, txouts, utxos, fee):
|
|
addr = node.getnewaddress()
|
|
txids = []
|
|
for i in xrange(len(utxos)):
|
|
t = utxos.pop()
|
|
inputs = []
|
|
inputs.append({ "txid" : t["txid"], "vout" : t["vout"]})
|
|
outputs = {}
|
|
send_value = t['amount'] - fee
|
|
outputs[addr] = satoshi_round(send_value)
|
|
rawtx = node.createrawtransaction(inputs, outputs)
|
|
newtx = rawtx[0:92]
|
|
newtx = newtx + txouts
|
|
newtx = newtx + rawtx[94:]
|
|
signresult = node.signrawtransaction(newtx, None, None, "NONE")
|
|
txid = node.sendrawtransaction(signresult["hex"], True)
|
|
txids.append(txid)
|
|
return txids
|
|
|
|
def get_bip9_status(node, key):
|
|
info = node.getblockchaininfo()
|
|
return info['bip9_softforks'][key]
|