def tx_from_json_dict(r):
version = r.get("version")
lock_time = r.get("locktime")
txs_in = []
for vin in r.get("vin"):
if "coinbase" in vin:
previous_hash = b'\0' * 32
script = h2b(vin.get("coinbase"))
previous_index = 4294967295
else:
previous_hash = h2b_rev(vin.get("txid"))
scriptSig = vin.get("scriptSig")
if "hex" in scriptSig:
script = h2b(scriptSig.get("hex"))
else:
script = tools.compile(scriptSig.get("asm"))
previous_index = vin.get("vout")
sequence = vin.get("sequence")
txs_in.append(TxIn(previous_hash, previous_index, script, sequence))
txs_out = []
for vout in r.get("vout"):
coin_value = btc_to_satoshi(decimal.Decimal(vout.get("value")))
script = tools.compile(vout.get("scriptPubKey").get("asm"))
txs_out.append(TxOut(coin_value, script))
tx = Tx(version, txs_in, txs_out, lock_time)
bh = r.get("blockhash")
if bh:
bh = h2b_rev(bh)
tx.confirmation_block_hash = bh
return tx
def test_h2b(self):
h = "000102"
b = b"\x00\x01\x02"
self.assertEqual(h2b(h), b)
self.assertEqual(b2h(b), h)
self.assertEqual(h2b_rev(h), b[::-1])
self.assertEqual(b2h_rev(b), "020100")
def parse_tx(arg, parser, tx_db, network):
# hex transaction id
tx = None
if TX_ID_RE.match(arg):
if tx_db is None:
tx_db = create_tx_db(network)
tx = tx_db.get(h2b_rev(arg))
if not tx:
parser.error("can't find Tx with id %s" % arg)
return tx, tx_db
# hex transaction data
try:
return Tx.from_hex(arg), tx_db
except Exception:
pass
if os.path.exists(arg):
try:
with open(arg, "rb") as f:
if f.name.endswith("hex"):
f = io.BytesIO(codecs.getreader("hex_codec")(f).read())
tx = Tx.parse(f)
tx.parse_unspents(f)
except Exception:
pass
return tx, tx_db
def spendable_for_row(r):
return Spendable(coin_value=r[2],
script=h2b(r[3]),
tx_hash=h2b_rev(r[0]),
tx_out_index=r[1],
block_index_available=r[4],
does_seem_spent=r[5],
block_index_spent=r[6])
def get_blockheader_with_transaction_hashes(self, block_hash):
URL = "%s/block/%s" % (self.base_url, b2h_rev(block_hash))
r = json.loads(urlopen(URL).read().decode("utf8"))
version = r.get("version")
previous_block_hash = h2b_rev(r.get("previousblockhash"))
merkle_root = h2b_rev(r.get("merkleroot"))
timestamp = r.get("time")
difficulty = int(r.get("bits"), 16)
nonce = int(r.get("nonce"))
tx_hashes = [h2b_rev(tx_hash) for tx_hash in r.get("tx")]
blockheader = Block(version, previous_block_hash, merkle_root,
timestamp, difficulty, nonce)
if blockheader.hash() != block_hash:
return None, None
calculated_hash = merkle(tx_hashes, double_sha256)
if calculated_hash != merkle_root:
return None, None
blockheader.height = r.get("height")
return blockheader, tx_hashes
def spendables_for_address(self, address):
"""
Return a list of Spendable objects for the
given bitcoin address.
"""
spendables = []
r = json.loads(urlopen(self.base_url('get_tx_unspent', address)).read().decode("utf8"))
for u in r['data']['txs']:
coin_value = int(float(u['value']) * 100000000)
script = h2b(u["script_hex"])
previous_hash = h2b_rev(u["txid"])
previous_index = u["output_no"]
spendables.append(Spendable(coin_value, script, previous_hash, previous_index))
return spendables
def spendables_for_address(self, bitcoin_address):
"""
Return a list of Spendable objects for the
given bitcoin address.
"""
URL = "%s/addr/%s/utxo" % (self.base_url, bitcoin_address)
r = json.loads(urlopen(URL).read().decode("utf8"))
spendables = []
for u in r:
coin_value = btc_to_satoshi(str(u.get("amount")))
script = h2b(u.get("scriptPubKey"))
previous_hash = h2b_rev(u.get("txid"))
previous_index = u.get("vout")
spendables.append(
Spendable(coin_value, script, previous_hash, previous_index))
return spendables
def spendables_for_address(self, address):
"""
Return a list of Spendable objects for the
given bitcoin address.
"""
spendables = []
url_append = "?unspentOnly=true&token=%s&includeScript=true" % self.api_key
url = self.base_url("addrs/%s%s" % (address, url_append))
result = json.loads(urlopen(url).read().decode("utf8"))
for txn in result.get("txrefs", []):
coin_value = txn.get("value")
script = h2b(txn.get("script"))
previous_hash = h2b_rev(txn.get("tx_hash"))
previous_index = txn.get("tx_output_n")
spendables.append(
Spendable(coin_value, script, previous_hash, previous_index))
return spendables
def txs_from_json(path):
"""
Read tests from ./data/tx_??valid.json
Format is an array of arrays
Inner arrays are either [ "comment" ]
or [[[prevout hash, prevout index, prevout scriptPubKey], [input 2], ...], serializedTransaction, verifyFlags]
... where all scripts are stringified scripts.
verifyFlags is a comma separated list of script verification flags to apply, or "NONE"
"""
comments = None
with open(path, 'r') as f:
for tvec in json.load(f):
if len(tvec) == 1:
comments = tvec[0]
continue
assert len(tvec) == 3
prevouts = tvec[0]
for prevout in prevouts:
assert len(prevout) in (3, 4)
tx_hex = tvec[1]
flag_mask = parse_flags(tvec[2])
try:
tx = Tx.from_hex(tx_hex)
except:
print("Cannot parse tx_hex: %s" % tx_hex)
raise
spendable_db = {}
blank_spendable = Spendable(0, b'', b'\0' * 32, 0)
for prevout in prevouts:
coin_value = 1000000
if len(prevout) == 4:
coin_value = prevout[3]
spendable = Spendable(coin_value=coin_value,
script=compile(prevout[2]),
tx_hash=h2b_rev(prevout[0]), tx_out_index=prevout[1])
spendable_db[(spendable.tx_hash, spendable.tx_out_index)] = spendable
unspents = [
spendable_db.get((tx_in.previous_hash, tx_in.previous_index), blank_spendable) for tx_in in tx.txs_in]
tx.set_unspents(unspents)
yield (tx, flag_mask, comments)
def test_issue_39(self):
"""
See https://github.com/richardkiss/pycoin/issues/39 and
https://github.com/richardkiss/pycoin/pull/40
There was a problem validating the following transactions:
315ac7d4c26d69668129cc352851d9389b4a6868f1509c6c8b66bead11e2619f
dbf38261224ebff0c455c405e2435cfc69adb6b8a42d7b10674d9a4eb0464dca
de744408e4198c0a39310c8106d1830206e8d8a5392bcf715c9b5ec97d784edd
This codes tests this.
"""
TX_B64_LIST = [
# some encoded transactions (the three listed above and the three
# that they depend upon)
("AQAAAALcOOk1m9faO1g4YgThhtlAhoX0J/XlE2ZttzWqimshaQAAAABqRzBE"
"AiBdj+6zEkeORo0LUU5j4ROVjXIU+lcqzYcHmn8MwCb8XAIgD6duoFvyQ69t"
"D5F38kHK9gbQH8/V5i1r77yiTlaeXCcDIQIQChqcosGJMtZXfFjyJVgBhNDg"
"gibUGVmHSslj48Gy/v/////cOOk1m9faO1g4YgThhtlAhoX0J/XlE2ZttzWq"
"imshaQEAAABrSDBFAiAIft44cp5tNeT1FVBQGOZZIiAxJztzZpIPOT7jqxe8"
"HgIhAMpDFkt1fRptEjXxMgDUtfdt2P2k7J/ChUay31sSEejfAyECdZg5E+YA"
"k7dn6FWXypOX+y9Bjlf5mNavu8U2EWCFscv/////AUCJlQAAAAAAGXapFPzJ"
"s204z1XX1bTuTd22ssF2EvSMiKwAAAAA"),
("AQAAAAEtUf3HWib/PGE4Ag4am7QPH6tuOc6W/q4yGMmuA14AqwEAAABrSDBF"
"AiEA5PGlIZB+UPxE0zEy7pjJcVpk350sKGDj4EdMUhq4U34CIDCvjTUGpTUu"
"KwVkRazYVaQtNycOlKYpp7KLIYcOxtdhASEDgIxJPwYZkNK+AB5A8EiuiHAy"
"C3SJXOLZZS88HHPNbyz/////AvCHSwAAAAAAGXapFPzJs204z1XX1bTuTd22"
"ssF2EvSMiKzwh0sAAAAAABl2qRQzzvYXSdEboq3wkaXgRWeBd/46bYisAAAA"
"AA=="),
("AQAAAAJa+fLO2OCiRk98qhSvobvRyPsY3qrl0QEZa1jcIn70rgAAAABqRzBE"
"AiANKFITbLHEu93eBOx29YHRsyockZFIyF+8D9BWXTWK8wIgNvKqF87Ind6w"
"A3aigYv3KMRHmSgLnyBExWkad7Dc2WwDIQIQChqcosGJMtZXfFjyJVgBhNDg"
"gibUGVmHSslj48Gy/v////9a+fLO2OCiRk98qhSvobvRyPsY3qrl0QEZa1jc"
"In70rgEAAABrSDBFAiEA9APIYMTjztPlIyyzWCXnk3It+vCsLwGWGpN4K0kG"
"qWMCIGLdifJz5mvPrW8FqLDNJrp7Bma+/Qw9pF2feVcX2lBKAyECdZg5E+YA"
"k7dn6FWXypOX+y9Bjlf5mNavu8U2EWCFscv/////AaAClAAAAAAAGXapFOUK"
"XY2jOZUbBAutBFPXxAz9dNPciKwAAAAA"),
("AQAAAAGfYeIRrb5mi2ycUPFoaEqbONlRKDXMKYFmaW3C1MdaMQAAAABsSTBG"
"AiEAhIisrGQ/6Sa7DAJtv+pa9nMiHuBTLNAkxlyzDjYvGEQCIQCFH27K+zjJ"
"ItZHnrCORpOhrBnHvPnUX8mqXy1pGB/4ngEhAhAKGpyiwYky1ld8WPIlWAGE"
"0OCCJtQZWYdKyWPjwbL+/////wKgxEoAAAAAABl2qRT8ybNtOM9V19W07k3d"
"trLBdhL0jIisoMRKAAAAAAAZdqkUM872F0nRG6Kt8JGl4EVngXf+Om2IrAAA"
"AAA="),
("AQAAAALCBkSoNGHOnUgtcCy8I87ODdMmW1WL56GNNOIWvaccAAAAAABrSDBF"
"AiAxKffbGKLs4sDhPFwLZvQlHX+Q20uxr0hFzQqtnSQZQAIhAImY0R1z7HrT"
"Tt4hR0R/3n3eS8LXk14G94/O8Pc7LDlmAyECE2UQ39BTBuo0mCvz395yuOSd"
"QyqYBb9kUtOZTnkvnRn/////yRF9O6xy+bn8PWf3KNM1uywKHCYWOL0bgEe1"
"Zd1jGaIAAAAAakcwRAIgRQ7h/BpT6uurhfpEmEE/Xx5OAZdUohj+Euzr3Zg8"
"mbkCIDxIakZ02TMLAtt5OHKyy0VQw7uywxjyis6540zeNZdJAyED78tvrsro"
"6386Jta3YJd/I64guTuYS8oof9K4PDGZeHD/////AeD9HAAAAAAAGXapFB0x"
"6lo758/yr1vtc3EOtvXV9n1wiKwAAAAA"),
("AQAAAAKerCh2TFeXmFaXU1qdQUucoCL5WRFVNZdvNt1FZgp5XQAAAACMSTBG"
"AiEAvLz97Qz/zSlKSDrllLRwj73G2B7RfaiR1ZspOG5Ae3kCIQD5ATZgiNvH"
"X8Tn8Ib8RohgW0HGbPRi00XUcvxCTmybGgFBBCsXId9LDBz91gENMCmVXxRE"
"ZI+E6QOSkToVTtny7tiOJhmHy/jci4KzQmucvUBotsK5r4CiwjhjOkAAXRD6"
"SWD/////6864dM1/4fxjvltUc0HJ1da9agsSw4LV3KYhGR7FJ+MBAAAAi0gw"
"RQIhAJIopjUy7dPOHa+LGTvgM4jfZ8pA522/Jx3+uFC4Lz5IAiBzLNoxejaa"
"dw1CXwOUuzI4rMl0xsuYC5XQaxZNT2TFzwFBBBPpriULEjb9VdVoC8v3E4is"
"RMmfQByPCJYadSwK/ZZg9TTFGyDXUwW+dQ9tScDzhMWfdLK9DyV4iAbnYh/S"
"2cr/////A0BCDwAAAAAAGXapFFzGycfh13x6rrUPhNJNj2ViE7xbiKwACT0A"
"AAAAABl2qRQhQVEH8cwnc3//rGPcfvakBANJxIistBcsAAAAAAAZdqkUMQV+"
"QpfDgBAsCQ+ixaUK5Kgl0kOIrAAAAAA="),
("AQAAAAO1CFlm1mEB3fjCtilQEH+6TbR3UzdJyqafj3mab9Mc6gAAAACKRzBE"
"AiA8rWZ4BB8YYJp3xtx8jAZdrfQ6B0zjYRdgTS7I5LZF7gIgabCjn9iu9L3n"
"YvKrdXFJJygtbg6V8iMTLrPh8ghdGvwBQQQrFyHfSwwc/dYBDTAplV8URGSP"
"hOkDkpE6FU7Z8u7YjiYZh8v43IuCs0JrnL1AaLbCua+AosI4YzpAAF0Q+klg"
"/////8IGRKg0Yc6dSC1wLLwjzs4N0yZbVYvnoY004ha9pxwAAQAAAItIMEUC"
"IDNZYWLuCV0nJL6CCGgUfQfNoh0oAACd2lMZn+zJdJCDAiEAqZafa18G1K1x"
"/6yOvj8h1uAGSM8UjSJJ6479li5sos4BQQTswrqYR5m+x0vFTzgGrrM2k+Gx"
"gX+hDBAvN8Kq9RRuWdqC4jVNGhGdFD63Ev1TQYXMqvp6b9ztbAZ3ED8i6sFo"
"/////0Vf19DzvUs2DvFwlVW9viTF+YlXCNYNMD6yUXK9I9RBAgAAAItIMEUC"
"IQCKbaQY2eH1fsXZFksstrP4B+uxPBwGRe2Wxl7rW5sYGwIgVvVEPdnJNvVj"
"rh0XZdhqnOAA0Sw39Upqkejrm+yXWnwBQQQ1hDJBuzoTc1ZJ8zyVQjEfRcjW"
"o8rq3lE+3x3rYZ3Q/9xBEBtsnkFAzps/N8n6C5cK2QAmRGxeGFmbYaGFT5RP"
"/////wNAQg8AAAAAABl2qRSU70Qwi2d2bI+nKnCP19XGsbSnWoisVEkwAAAA"
"AAAZdqkUgroT7ai54LzKPXVnWJsPoV6lJ0yIrHjrFQAAAAAAGXapFEFyZV9I"
"izJXnWmTivO2n9OKDWCdiKwAAAAA"),
("AQAAAAHBHumhtHyFj2ma501AFchO/RrrfkY1sYTKsJiYe6i5pAEAAADaAEcw"
"RAIgJQsMj5xe4yyGSQOseNBu7zuQNbdwYRpmu4tyOeVrDhoCIHTRJ5lHr5OH"
"JsmDYl4nTEMhT2TeEN8tMNtrt/rFLMaHAUgwRQIhAObKZ2o5NubR2aoXKP7q"
"oNMI3sv4u33Hnxcu1NBCilhoAiAH5OaEGAC5snVQDIWgXXVWICosFmTHHjXg"
"y5fNwAO5gAFHUiECzr9qtYCUjRRrfMdx2OZGl0NJ09exHz4DKH0Jl6R307kh"
"A3umUUhbeiyyIhketkpVkm5iu6v+m17SqUiKrVR7IEKCUq7/////An1KDwAA"
"AAAAGXapFNxnIa33YyARGtMFwzhMdn1LmeGViKxllyYPAAAAABepFNsSg3N8"
"2T68HrEpjWRKeEbFWm2WhwAAAAA="),
("AQAAAAHZI2Rm7Gvz7UMEKi20P7AIT5AOxlhwW29S0uFz9EPz1QEAAADaAEgw"
"RQIhAIX1NZuYzrKUHFAxUNYI6yWMUuzCEapuZOUY6TdCspWaAiAchzgPP6if"
"WNh0cmVkyW1UpygM/eVa1XrtHepCMhvArAFHMEQCIGLJtKtbyJEaH6iQS+hK"
"xUlGrWwmqdJScz/JfSZ1Qln6AiBNRC+gswEEMjTNR5uVetqCGJkNL2m6fDfk"
"DyICU/otoQFHUiECzr9qtYCUjRRrfMdx2OZGl0NJ09exHz4DKH0Jl6R307kh"
"A3umUUhbeiyyIhketkpVkm5iu6v+m17SqUiKrVR7IEKCUq7/////Aux5CAAA"
"AAAAGXapFDIKbLrYWAn/2ZTB7ToisbIaZ5DoiKzL5TUPAAAAABepFNsSg3N8"
"2T68HrEpjWRKeEbFWm2WhwAAAAA="),
( # 837dea37ddc8b1e3ce646f1a656e79bbd8cc7f558ac56a169626d649ebe2a3ba
"AQAAAAGsp/O0VlTCMOCIalf7mIwwRO9ej385cm0wXGHV6BiQPAAAAAD9XQEAS"
"DBFAiABh6+Sjp0VXEsaycHJEYFTI5q6dndPd118H5w+EG/zPAIhAIgisPZY7e"
"wiJ00LauneEOvy2gaxu9qrpOUOsHjznj14AUcwRAIgeV8PT1lBp3rgMuy54zd"
"TeI1+tcsMeNgFV11rAKHZv+0CID4fStkzLRQWrgHicDjpRbydtZxzJyijg6bx"
"7S+5naekAUzJUkEEkbuiUQkSpb032h+1sWcwEOQ9LG2BLFFOkb+p8usSnhwYM"
"ynbVb2GjiCarC+8Assz2Y/nS/I/DCNdYSax2DNPhkEEhlxAKTpoDLnAIOex4Q"
"bYwZFtPO+ZqkMaVtJT5pJW2sCe8SKxqYaBiny2JFMvBiwdH4ciCEhhxcMpHM/"
"+9OxodEEEjSRV0kA+CHCPwfVWAC8bbNg/mS0IUJf5l0qwiiiDjweJb7qwjzlJ"
"XhX6b61u2/sedU41+hx4RMQfMioYY9RiE1Ou/////wFAQg8AAAAAABl2qRSuV"
"rTbE1VNMhxALbOWEYeu0bvtW4isAAAAAA=="),
( # 3c9018e8d5615c306d72397f8f5eef44308c98fb576a88e030c25456b4f3a7ac
# input of
# 837dea37ddc8b1e3ce646f1a656e79bbd8cc7f558ac56a169626d649ebe2a3ba
"AQAAAAGJYyhI+ZcikVcnxcddqNstvxlDQqBCmCj2b/iPqyr31gAAAACLSDBFA"
"iEAq7yKc/4gVEgL2j8ygdotDFHihBORq9TAn0+QiiA0wY0CIFvJ5NaOr7kY8+"
"lmIzhkekQZwN4aZQq4mD8dIW4qMdjjAUEEb1XXre/2ARx+rClP5UDFeDC+gOk"
"1XIOGnJJgpLi/R2ema6y9cLgE3GPVvusUGAKSrX87CDNysdAtejfdl/9cnv//"
"//8BQEIPAAAAAAAXqRT4FbA22bu85enyoAq9G/PckelVEIcAAAAA")
]
TX_LIST = [
Tx.from_hex(b2h(binascii.a2b_base64(b64.encode("utf8"))))
for b64 in TX_B64_LIST
]
TX_DB = dict((tx.hash(), tx) for tx in TX_LIST)
for h in [
"315ac7d4c26d69668129cc352851d9389b4a6868f1509c6c8b66bead11e2619f",
"dbf38261224ebff0c455c405e2435cfc69adb6b8a42d7b10674d9a4eb0464dca",
"de744408e4198c0a39310c8106d1830206e8d8a5392bcf715c9b5ec97d784edd",
"485716e53b422aca0fe5b1ded21360695ce5f49255d80e10db56458ed6962ff3",
"837dea37ddc8b1e3ce646f1a656e79bbd8cc7f558ac56a169626d649ebe2a3ba"
]:
tx = TX_DB.get(h2b_rev(h))
self.assertNotEqual(tx, None)
tx.unspents_from_db(TX_DB)
for idx, tx_in in enumerate(tx.txs_in):
self.assertTrue(tx.is_signature_ok(tx_in_idx=idx))
def get_blockchain_tip(self):
URL = "%s/status?q=getLastBlockHash" % self.base_url
d = urlopen(URL).read().decode("utf8")
r = json.loads(d)
return h2b_rev(r.get("lastblockhash"))
def check_provider_tx_for_tx_hash(self, p, networks):
for net in networks:
b = p(net)
for tx_id in tx_id_for_net[net]:
tx = b.tx_for_tx_hash(h2b_rev(tx_id))
self.assertEqual(tx.id(), tx_id)
import threading
import unittest
from pycoinzpub.serialize import h2b_rev
from pycoinzpub.services import providers
from pycoinzpub.services.blockchain_info import BlockchainInfoProvider
from pycoinzpub.services.blockcypher import BlockcypherProvider
from pycoinzpub.services.blockexplorer import BlockExplorerProvider
from pycoinzpub.services.chain_so import ChainSoProvider
from pycoinzpub.services.insight import InsightProvider
BLOCK_0_HASH = h2b_rev(
"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f")
BLOCK_1_HASH = h2b_rev(
"00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048")
tx_id_for_net = {
"BTC": [
"b958e4a3ccd5bc8fe0ff6fafd635199313e347b88a8102040c05dd123f32a4f3",
"d1ef46055a84fd02ee82580d691064780def18614d98646371c3448ca20019ac",
"69916297f7adde13457b8244e2d704966097e9519ec8fd6f2e7af8c2a60f70f2",
"c586389e5e4b3acb9d6c8be1c19ae8ab2795397633176f5a6442a261bbdefc3a"
],
"XTN":
["4586e67ee5adcdbc97ed3d2a026ee8703df2ed3553854c186c216e90cd761b69"],
"DOGE":
["ed7df4e7506ac8447b6983c8ad79da1af86cddda0ff012f7db83e664f61ef6cf"],
"XDT":
["19dd5c3423e606b5b5dd30b070688bdf9af27fa736e8f3aeb2b68d92a50e67ef"],
}
