/usr/lib/python2.7/dist-packages/bitcoin/composite.py is in python-bitcoin 1.1.42-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | from bitcoin.main import *
from bitcoin.transaction import *
from bitcoin.bci import *
from bitcoin.deterministic import *
from bitcoin.blocks import *
# Takes privkey, address, value (satoshis), fee (satoshis)
def send(frm, to, value, fee=10000, **kwargs):
return sendmultitx(frm, to + ":" + str(value), fee, **kwargs)
# Takes privkey, "address1:value1,address2:value2" (satoshis), fee (satoshis)
def sendmultitx(frm, *args, **kwargs):
tv, fee = args[:-1], int(args[-1])
outs = []
outvalue = 0
for a in tv:
outs.append(a)
outvalue += int(a.split(":")[1])
u = unspent(privtoaddr(frm), **kwargs)
u2 = select(u, int(outvalue)+int(fee))
argz = u2 + outs + [privtoaddr(frm), fee]
tx = mksend(*argz)
tx2 = signall(tx, frm)
return pushtx(tx2, **kwargs)
# Takes address, address, value (satoshis), fee(satoshis)
def preparetx(frm, to, value, fee=10000, **kwargs):
tovalues = to + ":" + str(value)
return preparemultitx(frm, tovalues, fee, **kwargs)
# Takes address, address:value, address:value ... (satoshis), fee(satoshis)
def preparemultitx(frm, *args, **kwargs):
tv, fee = args[:-1], int(args[-1])
outs = []
outvalue = 0
for a in tv:
outs.append(a)
outvalue += int(a.split(":")[1])
u = unspent(frm, **kwargs)
u2 = select(u, int(outvalue)+int(fee))
argz = u2 + outs + [frm, fee]
return mksend(*argz)
# BIP32 hierarchical deterministic multisig script
def bip32_hdm_script(*args):
if len(args) == 3:
keys, req, path = args
else:
i, keys, path = 0, [], []
while len(args[i]) > 40:
keys.append(args[i])
i += 1
req = int(args[i])
path = map(int, args[i+1:])
pubs = sorted(map(lambda x: bip32_descend(x, path), keys))
return mk_multisig_script(pubs, req)
# BIP32 hierarchical deterministic multisig address
def bip32_hdm_addr(*args):
return scriptaddr(bip32_hdm_script(*args))
# Setup a coinvault transaction
def setup_coinvault_tx(tx, script):
txobj = deserialize(tx)
N = deserialize_script(script)[-2]
for inp in txobj["ins"]:
inp["script"] = serialize_script([None] * (N+1) + [script])
return serialize(txobj)
# Sign a coinvault transaction
def sign_coinvault_tx(tx, priv):
pub = privtopub(priv)
txobj = deserialize(tx)
subscript = deserialize_script(txobj['ins'][0]['script'])
oscript = deserialize_script(subscript[-1])
k, pubs = oscript[0], oscript[1:-2]
for j in range(len(txobj['ins'])):
scr = deserialize_script(txobj['ins'][j]['script'])
for i, p in enumerate(pubs):
if p == pub:
scr[i+1] = multisign(tx, j, subscript[-1], priv)
if len(filter(lambda x: x, scr[1:-1])) >= k:
scr = [None] + filter(lambda x: x, scr[1:-1])[:k] + [scr[-1]]
txobj['ins'][j]['script'] = serialize_script(scr)
return serialize(txobj)
# Inspects a transaction
def inspect(tx, **kwargs):
d = deserialize(tx)
isum = 0
ins = {}
for _in in d['ins']:
h = _in['outpoint']['hash']
i = _in['outpoint']['index']
prevout = deserialize(fetchtx(h, **kwargs))['outs'][i]
isum += prevout['value']
a = script_to_address(prevout['script'])
ins[a] = ins.get(a, 0) + prevout['value']
outs = []
osum = 0
for _out in d['outs']:
outs.append({'address': script_to_address(_out['script']),
'value': _out['value']})
osum += _out['value']
return {
'fee': isum - osum,
'outs': outs,
'ins': ins
}
def merkle_prove(txhash):
blocknum = str(get_block_height(txhash))
header = get_block_header_data(blocknum)
hashes = get_txs_in_block(blocknum)
i = hashes.index(txhash)
return mk_merkle_proof(header, hashes, i)
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