def test_validate_scrypt(self):
""" confirm scrypt validation of difficulty works properly """
header_hex = ("01000000f615f7ce3b4fc6b8f61e8f89aedb1d0852507650533a9e3"
"b10b9bbcc30639f279fcaa86746e1ef52d3edb3c4ad8259920d509b"
"d073605c9bf1d59983752a6b06b817bb4ea78e011d012d59d4")
header_bytes = header_hex.decode('hex')
target = target_unpack(unhexlify("1d018ea7"))
self.assertTrue(BlockTemplate.validate_scrypt(header_bytes, target))
def test_validate_scrypt(self):
""" confirm scrypt validation of difficulty works properly """
header_hex = ("01000000f615f7ce3b4fc6b8f61e8f89aedb1d0852507650533a9e3"
"b10b9bbcc30639f279fcaa86746e1ef52d3edb3c4ad8259920d509b"
"d073605c9bf1d59983752a6b06b817bb4ea78e011d012d59d4")
header_bytes = header_hex.decode('hex')
target = target_unpack(unhexlify("1d018ea7"))
self.assertTrue(BlockTemplate.validate_scrypt(header_bytes, target))
def update_pool(conn):
try:
# request local memory pool and load it in
bt = conn.getblocktemplate({'capabilities': [
'coinbasevalue',
'coinbase/append',
'coinbase',
'generation',
'time',
'transactions/remove',
'prevblock',
]})
except Exception:
logger.warn("Failed to fetch new job, RPC must be down..")
down_connection(conn, net_state)
return False
dirty = 0 # track a change in the transaction pool
for trans in bt['transactions']:
if trans['hash'] not in net_state['transactions']:
dirty += 1
new_trans = Transaction(unhexlify(trans['data']),
fees=trans['fee'])
assert trans['hash'] == new_trans.lehexhash
net_state['transactions'][trans['hash']] = new_trans
if dirty or len(net_state['jobs']) == 0:
# here we recalculate the current merkle branch and partial
# coinbases for passing to the mining clients
coinbase = Transaction()
coinbase.version = 2
# create a coinbase input with encoded height and padding for the
# extranonces so script length is accurate
extranonce_length = (config['extranonce_size'] +
config['extranonce_serv_size'])
coinbase.inputs.append(
Input.coinbase(bt['height'], b'\0' * extranonce_length))
# simple output to the proper address and value
fees = 0
for t in net_state['transactions'].itervalues():
fees += t.fees
coinbase.outputs.append(
Output.to_address(bt['coinbasevalue'] - fees, config['pool_address']))
job_id = hexlify(pack(str("I"), net_state['job_counter']))
logger.info("Generating new block template with {} trans"
.format(len(net_state['transactions'])))
bt_obj = BlockTemplate.from_gbt(bt, coinbase, extranonce_length, [])
bt_obj.job_id = job_id
bt_obj.block_height = bt['height']
bt_obj.acc_shares = set()
net_state['job_counter'] += 1
net_state['jobs'][job_id] = bt_obj
net_state['latest_job'] = job_id
logger.debug("Adding {} new transactions to transaction pool, "
"created job {}".format(dirty, job_id))
return bt_obj
def test_block_header2(self):
# pulled from litecoin blockchain and modded slightly with full block header
block_data = {
'bits':
'1d018ea7',
'hash':
'adf6e2e56df692822f5e064a8b6404a05d67cccd64bc90f57f65b46805e9a54b',
'height':
29255,
'merkleroot':
'066b2a758399d5f19b5c6073d09b500d925982adc4b3edd352efe14667a8ca9f',
'nonce':
hexlify(pack(str(">L"), 3562614017)),
'previousblockhash':
'279f6330ccbbb9103b9e3a5350765052081ddbae898f1ef6b8c64f3bcef715f6',
'curtime':
1320884152,
'raw_header':
'01000000f615f7ce3b4fc6b8f61e8f89aedb1d0852507650533a9e3b10b9bbcc30639f279fcaa86746e1ef52d3edb3c4ad8259920d509bd073605c9bf1d59983752a6b06b817bb4ea78e011d012d59d4',
'tx':
[('066b2a758399d5f19b5c6073d09b500d925982adc4b3edd352efe14667a8ca9f',
'01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0804b217bb4e022309ffffffff0100f2052a010000004341044870341873accab7600d65e204bb4ae47c43d20c562ebfbf70cbcb188da98dec8b5ccf0526c8e4d954c6b47b898cc30adf1ff77c2e518ddc9785b87ccb90b8cdac00000000'
)],
'version':
1
}
# make a list of objects
# confirm that the objects hash correctly
coinbase = None
transactions = [
Transaction(unhexlify(data.encode('ascii')), disassemble=True)
for _, data in block_data['tx']
]
self.assertEquals(hexlify(merkleroot(transactions, be=True)[0]),
block_data['merkleroot'])
for obj, hsh in zip(transactions, block_data['tx']):
hsh = hsh[0]
obj.disassemble()
self.assertEquals(obj.lehexhash, hsh)
if obj.is_coinbase:
idx = transactions.index(obj)
coinbase = transactions.pop(idx)
print("Found coinbase idx {} Amount is {}".format(
idx, coinbase.outputs[0].amount))
pprint(coinbase.to_dict())
tmplt = BlockTemplate.from_gbt(block_data,
coinbase,
transactions=transactions)
self.assertEquals(hexlify(tmplt.merkleroot_be(coinbase)),
block_data['merkleroot'])
header = tmplt.block_header(block_data['nonce'], b'', b'')
self.assertEquals(block_data['raw_header'], hexlify(header))
assert tmplt.validate_scrypt(
header, target_unpack(unhexlify(block_data['bits'])))
def test_block_template():
gbt = {u'coinbaseaux': {u'flags': u''}, u'vbavailable': {}, u'previousblockhash': u'00000061786317587bcfe97516cd00a541962334779d60efdb7c4efeb670ac77', u'target': u'7fffff0000000000000000000000000000000000000000000000000000000000', u'noncerange': u'00000000ffffffff', u'transactions': [], u'rules': [], u'vbrequired': 0, u'curtime': 1500584586, u'capabilities': [u'proposal'], u'height': 16, 'update_time': 1500584586.899153, u'mintime': 1500584329, u'version': 536870912, u'bits': u'207fffff', u'coinbasevalue': 5000000000, u'sigoplimit': 20000, u'sizelimit': 1000000, u'mutable': [u'time', u'transactions', u'prevblock'], u'longpollid': u'00000061786317587bcfe97516cd00a541962334779d60efdb7c4efeb670ac7718'}
extranonce_length = 4
coinbase = Transaction()
coinbase.version = 2
coinbase.inputs.append(
Input.coinbase(gbt['height'], [], extra_script_sig=b'\0' * extranonce_length))
coinbase_value = 10000000
coinbase.outputs.append(Output.to_address(coinbase_value, "1F1tAaz5x1HUXrCNLbtMDqcw6o5GNn4xqX"))
bt_obj = BlockTemplate.from_gbt(gbt, coinbase, extranonce_length, [])
def push_job(self, job_data, id, flush=False, push=False):
new_job = BlockTemplate()
new_job.__dict__.update(job_data)
if push:
for idx, client in viewitems(self.stratum_manager.clients):
try:
if flush:
client.new_block_event.set()
else:
client.new_work_event.set()
except AttributeError:
pass
def test_stratum_confirm(self):
""" Test some raw data from cgminer submitting a share, confirm
hashes come out the same as cgminer.
Raw stratum params:
"""
gbt = {u'bits': u'1e00e92b',
u'coinbaseaux': {u'flags': u'062f503253482f'},
u'coinbasevalue': 5000000000,
u'curtime': 1392509565,
u'height': 203588,
u'mintime': 1392508633,
u'mutable': [u'time', u'transactions', u'prevblock'],
u'noncerange': u'00000000ffffffff',
u'previousblockhash': u'b0f5ecb62774f2f07fdc0f72fa0585ae3e8ca78ad8692209a355d12bc690fb73',
u'sigoplimit': 20000,
u'sizelimit': 1000000,
u'target': u'000000e92b000000000000000000000000000000000000000000000000000000',
u'transactions': [],
u'version': 2}
extra1 = '0000000000000000'
submit = {'extra2': '00000000', 'nonce': 'd5160000',
'result': '000050ccfe8a3efe93b2ee33d2aecf4a60c809995c7dd19368a7d00c86880f30'}
# build a block template object from the raw data
coinbase = Transaction()
coinbase.version = 2
coinbase.inputs.append(Input.coinbase(gbt['height'], b'\0' * 12))
coinbase.outputs.append(Output.to_address(gbt['coinbasevalue'], 'D7QJyeBNuwEqxsyVCLJi3pHs64uPdMDuBa'))
transactions = []
for trans in gbt['transactions']:
new_trans = Transaction(unhexlify(trans['data']), fees=trans['fee'])
assert trans['hash'] == new_trans.lehexhash
transactions.append(new_trans)
bt = BlockTemplate.from_gbt(gbt, coinbase, 12, transactions)
send_params = bt.stratum_params()
print("job_id: {0}\nprevhash: {1}\ncoinbase1: {2}\ncoinbase2: {3}"
"\nmerkle_branch: {4}\nversion: {5}\nnbits: {6}\nntime: {7}"
.format(*send_params))
header = bt.block_header(submit['nonce'], extra1, submit['extra2'])
hash_bin = scrypt(header)
target = target_from_diff(1, 0x0000FFFF00000000000000000000000000000000000000000000000000000000)
hash_int = uint256_from_str(hash_bin)
hash_hex = "%064x" % hash_int
self.assertEquals(hash_hex, submit['result'])
assert hash_int < target
def test_block_header(self):
return
# pulled from dogecoin blockchain and modded slightly, height 50000
block_data = {
'bits': '1c00c7ec',
'hash': 'e4cab588a33147a217c8bc2f923fcd1f642fde26c7c797a5c2c4808c4c617a7e',
'height': 50000,
'merkleroot': '5af19843e6220965f3c4b5f8d3995796edff0aad5ee4cc6ab849333881c001e1',
'nonce': hexlify(pack(str(">L"), 3014526208)),
'previousblockhash': '7f0502292609f5949260403176e8874ec7c5376397641d3f660648e7fdda0bab',
'curtime': 1389349309,
'tx': [
('d4eeb0cd44a4339d1a9fe8cea9482689165cff6ed1a3f4815bafcb443cdd271e', '01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff250350c300062f503253482f04bcc9cf5208f80032c0020000000b2f4e757432506f6f6c732f00000000010b54074f2f4b00001976a9141b3fdba0ff497a9d8e84d65e9b078e23e46e97f088ac00000000'),
('481fce0e2572dd782369dcc2457c267bb70918e825dfedd6e178ddf28d016cde', '0100000006ca0667d0021af9199f134a38ece3f813200f457282c2904d11b5c14a773ad514010000006b48304502200470b7b254b1d4b75f3318c6348ac97e2ba35f4be838aa10b50429107b4a8026022100864687886781c4a16de03b18fc5236bd379a6655f075b75da308b9bc3d7565b801210314309009775cf62a41fb7f0527e5bcda061e0b1f9dde2dc9cec7c7675453e901ffffffff9f9316e06ba91ceb8d93a3f3b1286570ccc9f5720c944a556e37a11a0789d99a010000006b483045022100fc72dadfb07f7253b948bd94c3e9e534a4f45fdd70d6f25e865afc079f5f07ac022028be9ec4d68e700f5843a72e387f1a2bdf0cacb06f19ad8fbbc3db15ceaadd9401210314309009775cf62a41fb7f0527e5bcda061e0b1f9dde2dc9cec7c7675453e901ffffffffcc803949dfe10ac0d9b7adc4b560a52fdbfc3fbf5a2cd4c515bdc1ccee1919e6010000006a4730440220385fb14c3f6559557c6ff0a1beab9c0a3a1f3ee7b5c466874566f25063be13fb022001b84680899638bd99fcea1f8a007ccda4df954a594210a1e6b2644c681b56b601210314309009775cf62a41fb7f0527e5bcda061e0b1f9dde2dc9cec7c7675453e901ffffffff340b8f285ceea5a123aaae8d33fd940442962894b8276a0f1d0959072c85b1e2010000006b4830450221008c592892fb530499f75065d4c741a97bb89e7aab7f156cf6471e134e41d19b3802202355e2f57c8ab27eb9445612e18f8ca0c51d0c8bad035082f784157db006419501210314309009775cf62a41fb7f0527e5bcda061e0b1f9dde2dc9cec7c7675453e901ffffffff57835281cd613c9afc81e339d4d6b5ff20e25b381015b99ad863c3cec9c456d3010000006b48304502201ebdf69c6e146dc9f832d32439a1fef26011eecac1ffdc246ed37b726ca33f9a022100bb4e8f82c2c89c254700196f08e277af6964a04122a6395d42e61ffdbbb08ac601210314309009775cf62a41fb7f0527e5bcda061e0b1f9dde2dc9cec7c7675453e901ffffffff5d22d9f2819f918f92bfb529c58201ed382a38d67a20c4277d104ecd92cb84c1010000006c493046022100834cfab229487cef0fe22dd07bbcf83bd3ce2696aee904b906c0cd8791e86a74022100a9dc16328ca8c648a0999d584fb1003fd4375aabe05d273143e976a735cf72f001210314309009775cf62a41fb7f0527e5bcda061e0b1f9dde2dc9cec7c7675453e901ffffffff010011133a4f0200001976a914db4d7ba9e58109182b04307cd587fc0c79f659e788ac00000000'),
('74c60a18fc9a265cf78973d36e20b781ae427d4d62e9818bc51de000ef6fb1e3', '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'),
('12127842a829a588be0ac25a3ab5505925e79440d6911d22dd1059c79b9966e7', '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'),
('48d5713b929e28f1810cc7effdbfb0cb11bc88068bfbb1c9f076536b794715af', '010000000501049ee2eba48bf43470d5a6c1328fc29e3f434cae2f92d6b55bc6b694083d4f010000006a4730440220656c1c8c96ac2e72451e1ac69e496ee3768cd35741a4605579a770bde17ebe8e02207b0093e79f4f9e99795575699fd38496b2b12ce1b994054505c52dc9092a2bba01210345c22d21ffaed0e492bd96c65f512757b7062964c8a69cbcbdc08d4139cdf561ffffffff17765b1d45fc0f0b0d9e060291bfaf19b9a219f3a74fb1fb6e20fda3278f252f010000006b4830450220264601cb87ca3579f4653248dfb539bd13bea41c63d378ab7ec86f5476ea99ab022100e5921d7d5b7c5421cf17a46729d1e08b26cfe3d64120d46a4c0faa623f91791301210345c22d21ffaed0e492bd96c65f512757b7062964c8a69cbcbdc08d4139cdf561ffffffff94a09224a810a12eb793cb87802f58e31e5fc1f38831be221a4d2f9910893dcb010000006c4930460221008160791119449e306c9db0b3f22dde248bbc73babd732052b26a58b29c86287b022100ccdd9cb9eb9d8791c45b691d09f5aba2bfd69f279edd9c8177942748a5075ed901210345c22d21ffaed0e492bd96c65f512757b7062964c8a69cbcbdc08d4139cdf561ffffffff9c9431729394c53656a625755dd2ff124a0d615932a2ea6befafd36812301ae0010000006a47304402202930eda28e865b8d190a305611473760df2b151175bc834155bc58435e82955102206eb77aceae4149715002ea4fee6eb2ffd807c1dc3fd37ea1d7eb28e88733883401210345c22d21ffaed0e492bd96c65f512757b7062964c8a69cbcbdc08d4139cdf561ffffffffae32166a760609d5fae1361f568977fb23e108a480a328298f075603a2bd124d010000006b48304502210094586a38aaa22ac5f1cb85871236057ae2fb8412fe5128768f2435eeadff0d8402202bd0000b2ddad2f1da83cfec60513aea0724f477bb55d5150e0de31955710c0d01210345c22d21ffaed0e492bd96c65f512757b7062964c8a69cbcbdc08d4139cdf561ffffffff0100bccfcd5a0000001976a91442f319a15fd608b67ddddcc2e3badf1b90554fe088ac00000000'),
('212499f6527467b49cdf946524b42266ca8751616a41b7181d3a8931da7b240e', '01000000018fa554391f4e45ae96b9c6e9bd35f1cf38737ee9ad67ba401329df7497625513000000006b483045022019331f164d059057e5dc12bab158678ba65faf1b9542811434ce13e1179550b4022100e2375b7f350b18c1bde49c8ddd7d245282b931e1a8204018bb01b8abff94f4790121038f63d5c111706674f50f3d28729fe9848e9a3aee0b965c674d14e2155c5ee35bffffffff0200a3af46bb0000001976a9149cc45c2d78927f22ab4008a907becf6ab642258288aca019f807000000001976a9144d4952746b2777f3d07a89ad0ffd02e2e1d9aed288ac00000000'),
('47bce257235ab0f6c8526a12fc23e3bec10bbd1d87a3a261f624ff5c0d2730f2', '0100000001a16eaa30e2d56f3a3a94bf4b640c2ffaa3ccd09ce3926567b2e63e3f4d55df26000000006b48304502203579c6afe9b7365252c0424aa5e3b9d00c850f2beee0c0b2f66ac7652c4eb002022100ca44a4a0e7d2ff81de117efd144a89c70acc87eaf2e3454fed175f0ef9b6f562012103f5f17ee5b476803cf332d56c293ce59aa77a5046a284c9f7a523fefd911e9980ffffffff0260119d0a010000001976a9149e027ca13765f6558fcbab6acec2fc561fc5dd3288ac9ec1764b010000001976a914957acdecb251260da54dc8510497cb761db0698c88ac00000000'),
('6b74e1534ee50fc7158593831e322717fa536d65cbeb03fe53b30b31853fa033', '010000000153323c2dbba06bc58227354b013d31ba01ba814fa5681fb211c039979cac1643000000006b483045022054f7930a06af7da2a3e35c3fbb9bb0fbf5897c9296286de46d96763ea8c1d8fc0221009b8d53d5964a57fc8469ece1b0ef6f43e2cdbe1d4d72308d04491cb4705f95ce012103bbd11e6843ebcbcd2024265332738d8e1ebc7d0bb4b3a2e5b7a8bd6ece14bcb7ffffffff029feec0e4000000001976a91481d7f7a63b4a4e236b3b5d43067212e52bcd25ae88acf73d7520000000001976a91447cd32e2669d30d86d1c6708b890b9d7c7b632f188ac00000000')],
'version': 1}
# make a list of objects
# confirm that the objects hash correctly
coinbase = None
transactions = [Transaction(unhexlify(data.encode('ascii')), disassemble=True)
for _, data in block_data['tx']]
self.assertEquals(hexlify(merkleroot(transactions)[0]), block_data['merkleroot'])
for obj, hsh in zip(transactions, block_data['tx']):
hsh = hsh[0]
obj.disassemble()
self.assertEquals(obj.lehexhash, hsh)
if obj.is_coinbase:
idx = transactions.index(obj)
coinbase = transactions.pop(idx)
print("Found coinbase idx {} Amount is {}"
.format(idx, coinbase.outputs[0].amount))
tmplt = BlockTemplate.from_gbt(block_data, coinbase,
transactions=transactions)
self.assertEquals(hexlify(tmplt.merkleroot(coinbase)),
block_data['merkleroot'])
header = tmplt.block_header(block_data['nonce'], b'', b'')
assert tmplt.validate_scrypt(header, target_unpack(unhexlify(block_data['bits'])))
def test_block_header4(self):
# pulled from mozzshare blockchain and modded slightly with full block header
block_data = {
'bits': '1b65bf06',
'hash': '00000000005f53a4158ec81a7f936875b117add6ddf16052be69db814ed08e5d',
'height': 95477,
'merkleroot': '68214acafcc87de6c6bf0389cf6fbaf85ce602972e188a422320260f28e57adc',
'nonce': hexlify(pack(str(">L"), 12348287)),
'previousblockhash': '00000000003fbdcb0529f2df6b9e846092c25fd472117f2dade884be824a519f',
'curtime': 1412981134,
"reward": 120,
'tx': [
('273de181f48d64299a81b16705fc0d7d9ee392e258af96a1e10a9dffce13d64c', '01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff2703f57401062f503253482f048661385408f80031f9dc0100000d2f7374726174756d506f6f6c2f0000000001408544cb020000001976a9145944e74d6aaf83be927703ad95e7308787bb55c588ac00000000'),
('d4fb5de6290873a66171d167ae91cec59e116e23c2a88b50741671a76061176e', '0100000001fccce331a39a2b923ee88c7660e0803214f9a677314f21c7cb3a81e25eeb9158010000006c493046022100c13d4e43a267fa6e3b74d559eb985e886d8efe6d7f78c6105d5f6e46677e9c0d02210096e2acfc2e745286c0e948cd3f085a2da6d396277644669f448699a280bcc955012102dfaf5dfed2eec785ed262b574b2cf1c2b5e613ca5149b24725b54cb62c8e94acffffffff02f2f1b507000000001976a914ea76974eccf823d94a3615c1a0a117dec16533d888ac1ac96ae4010000001976a914e2c6ffbd9a5187e474d8278f4d2ad4f2adad17cf88ac00000000'),
('2daaa24179c2bf1c95da24f8ea3bf4d2722326c03f6407676b23edb42d0c908d', '010000000154f1cf0ee5b7efd7e3f3d3e1b81d98c743c0b1ab8257a82119ac6d0e73362876000000006b4830450220153fb11ac82d3d97addb82e717d5cc95c0d4c31dc709d4f634f82d5c93bb2730022100b12f8251a57238bbaa5c1e6c6552c1d64671a0130a24afcffad723b6fe0f8bfc0121024a192ab361b42cb0aab26e877423b4c51402d98423912f5faad243a301285e9dffffffff02ca154407000000001976a914b652ec06255ecd4708f416e8ae17646b773d09e088acef47e09c010000001976a9149212ca9f86bc8f699f31be024d092963661a0eff88ac00000000'),
],
'version': 325781176}
# make a list of objects
# confirm that the objects hash correctly
coinbase = None
transactions = [Transaction(unhexlify(data.encode('ascii')), disassemble=True, coin='MLS')
for _, data in block_data['tx']]
self.assertEquals(hexlify(merkleroot(transactions, be=True, hash_func=hvc_hash)[0]).decode('ascii'), block_data['merkleroot'])
for obj, hsh in zip(transactions, block_data['tx']):
hsh = hsh[0]
obj.disassemble()
self.assertEquals(obj.behexhash, hsh)
if obj.is_coinbase:
idx = transactions.index(obj)
coinbase = transactions.pop(idx)
print("Found coinbase idx {} Amount is {}"
.format(idx, coinbase.outputs[0].amount))
pprint(coinbase.to_dict())
tmplt = BlockTemplate.from_gbt(block_data, coinbase,
transactions=transactions, coin='MLS')
self.assertEquals(hexlify(tmplt.merkleroot_be(coinbase)).decode('ascii'),
block_data['merkleroot'])
header = tmplt.block_header(block_data['nonce'], b'', b'')
self.assertEquals(block_data['hash'], hexlify(hvc_powhash(header)[::-1]).decode('ascii'))
def test_block_header2(self):
# pulled from litecoin blockchain and modded slightly with full block header
block_data = {
'bits': '1d018ea7',
'hash': 'adf6e2e56df692822f5e064a8b6404a05d67cccd64bc90f57f65b46805e9a54b',
'height': 29255,
'merkleroot': '066b2a758399d5f19b5c6073d09b500d925982adc4b3edd352efe14667a8ca9f',
'nonce': hexlify(pack(str(">L"), 3562614017)),
'previousblockhash': '279f6330ccbbb9103b9e3a5350765052081ddbae898f1ef6b8c64f3bcef715f6',
'curtime': 1320884152,
'raw_header': '01000000f615f7ce3b4fc6b8f61e8f89aedb1d0852507650533a9e3b10b9bbcc30639f279fcaa86746e1ef52d3edb3c4ad8259920d509bd073605c9bf1d59983752a6b06b817bb4ea78e011d012d59d4',
'tx': [
('066b2a758399d5f19b5c6073d09b500d925982adc4b3edd352efe14667a8ca9f', '01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0804b217bb4e022309ffffffff0100f2052a010000004341044870341873accab7600d65e204bb4ae47c43d20c562ebfbf70cbcb188da98dec8b5ccf0526c8e4d954c6b47b898cc30adf1ff77c2e518ddc9785b87ccb90b8cdac00000000')],
'version': 1}
# make a list of objects
# confirm that the objects hash correctly
coinbase = None
transactions = [Transaction(unhexlify(data.encode('ascii')), disassemble=True)
for _, data in block_data['tx']]
self.assertEquals(hexlify(merkleroot(transactions, be=True)[0]), block_data['merkleroot'])
for obj, hsh in zip(transactions, block_data['tx']):
hsh = hsh[0]
obj.disassemble()
self.assertEquals(obj.lehexhash, hsh)
if obj.is_coinbase:
idx = transactions.index(obj)
coinbase = transactions.pop(idx)
print("Found coinbase idx {} Amount is {}"
.format(idx, coinbase.outputs[0].amount))
pprint(coinbase.to_dict())
tmplt = BlockTemplate.from_gbt(block_data, coinbase,
transactions=transactions)
self.assertEquals(hexlify(tmplt.merkleroot_be(coinbase)),
block_data['merkleroot'])
header = tmplt.block_header(block_data['nonce'], b'', b'')
self.assertEquals(block_data['raw_header'], hexlify(header))
assert tmplt.validate_scrypt(header,
target_unpack(unhexlify(block_data['bits'])))
def test_block_header3(self):
# pulled from heavycoin blockchain and modded slightly with full block header
block_data = {
'bits': '1c040773',
'hash': '000000000035ef615d0708b7409021bde4e29ab063f7f8b531197d8230a931ca',
'height': 122588,
'merkleroot': '105faebb2ac14858bbf92d1ebd29dd49b5fd532a54097bc76818e3668dd6925b',
'nonce': hexlify(pack(str(">L"), 825226627)),
'previousblockhash': '0000000003d8d235668c6d41389dd703b828f4a0f02d30a37e62ca10ab144b3f',
'curtime': 1409012334,
"vote" : 1,
"reward" : 434,
'tx': [
('105faebb2ac14858bbf92d1ebd29dd49b5fd532a54097bc76818e3668dd6925b', '01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff1103dcde010453fbd26e7b00000b7b000000ffffffff010072d71a0a0000001976a914caf784fd449b3cdde48c7542640f14b34aed42fd88ac00000000')],
'version': 350470948}
# make a list of objects
# confirm that the objects hash correctly
coinbase = None
transactions = [Transaction(unhexlify(data.encode('ascii')), disassemble=True, coin='HVC')
for _, data in block_data['tx']]
self.assertEquals(hexlify(merkleroot(transactions, be=True, hash_func=hvc_hash)[0]).decode('ascii'), block_data['merkleroot'])
for obj, hsh in zip(transactions, block_data['tx']):
hsh = hsh[0]
obj.disassemble()
self.assertEquals(obj.behexhash, hsh)
if obj.is_coinbase:
idx = transactions.index(obj)
coinbase = transactions.pop(idx)
print("Found coinbase idx {} Amount is {}"
.format(idx, coinbase.outputs[0].amount))
pprint(coinbase.to_dict())
tmplt = BlockTemplate.from_gbt(block_data, coinbase,
transactions=transactions, coin='HVC')
self.assertEquals(hexlify(tmplt.merkleroot_be(coinbase)).decode('ascii'),
block_data['merkleroot'])
header = tmplt.block_header(block_data['nonce'], b'', b'', nvote=hexlify(pack(str(">H"), block_data['vote'])))
self.assertEquals(block_data['hash'], hexlify(hvc_powhash(header)[::-1]).decode('ascii'))
def generate_job(self, push=False, flush=False, new_block=False):
""" Creates a new job for miners to work on. Push will trigger an
event that sends new work but doesn't force a restart. If flush is
true a job restart will be triggered. """
# aux monitors will often call this early when not needed at startup
if self.last_gbt is None:
return
merged_work = self.net_state['merged_work']
if self.net_state['merged_work']:
tree, size = bitcoin_data.make_auxpow_tree(merged_work)
mm_hashes = [
merged_work.get(tree.get(i), dict(hash=0))['hash']
for i in xrange(size)
]
mm_data = '\xfa\xbemm'
mm_data += bitcoin_data.aux_pow_coinbase_type.pack(
dict(
merkle_root=bitcoin_data.merkle_hash(mm_hashes),
size=size,
nonce=0,
))
mm_later = [(aux_work, mm_hashes.index(aux_work['hash']),
mm_hashes)
for chain_id, aux_work in merged_work.iteritems()]
else:
mm_later = []
mm_data = None
# here we recalculate the current merkle branch and partial
# coinbases for passing to the mining clients
coinbase = Transaction()
coinbase.version = 2
# create a coinbase input with encoded height and padding for the
# extranonces so script length is accurate
extranonce_length = (self.config['extranonce_size'] +
self.config['extranonce_serv_size'])
coinbase.inputs.append(
Input.coinbase(self.last_gbt['height'],
addtl_push=[mm_data] if mm_data else [],
extra_script_sig=b'\0' * extranonce_length))
# simple output to the proper address and value
coinbase.outputs.append(
Output.to_address(self.last_gbt['coinbasevalue'],
self.config['pool_address']))
job_id = hexlify(struct.pack(str("I"), self.net_state['job_counter']))
logger.info(
"Generating new block template with {} trans. Diff {}. Subsidy {}."
.format(len(self.last_gbt['transactions']),
bits_to_difficulty(self.last_gbt['bits']),
self.last_gbt['coinbasevalue']))
bt_obj = BlockTemplate.from_gbt(
self.last_gbt, coinbase, extranonce_length, [
Transaction(unhexlify(t['data']), fees=t['fee'])
for t in self.last_gbt['transactions']
])
bt_obj.mm_later = copy(mm_later)
hashes = [bitcoin_data.hash256(tx.raw) for tx in bt_obj.transactions]
bt_obj.merkle_link = bitcoin_data.calculate_merkle_link([None] +
hashes, 0)
bt_obj.job_id = job_id
bt_obj.block_height = self.last_gbt['height']
bt_obj.acc_shares = set()
if push:
if flush:
logger.info("New work announced! Wiping previous jobs...")
self.net_state['jobs'].clear()
self.net_state['latest_job'] = None
else:
logger.info("New work announced!")
self.net_state['job_counter'] += 1
self.net_state['jobs'][job_id] = bt_obj
self.net_state['latest_job'] = job_id
if push:
for idx, client in viewitems(self.stratum_clients):
try:
if flush:
client.new_block_event.set()
else:
client.new_work_event.set()
except AttributeError:
pass
if new_block:
hex_bits = hexlify(bt_obj.bits)
self.net_state['work']['difficulty'] = bits_to_difficulty(hex_bits)
if self.config['send_new_block']:
self.celery.send_task_pp('new_block', bt_obj.block_height,
hex_bits, bt_obj.total_value)
def generate_job(self,
push=False,
flush=False,
new_block=False,
network='main'):
""" Creates a new job for miners to work on. Push will trigger an
event that sends new work but doesn't force a restart. If flush is
true a job restart will be triggered. """
# aux monitors will often call this early when not needed at startup
if not self._last_gbt:
self.logger.warn("Cannot generate new job, missing last GBT info")
return
if self.auxmons:
merged_work = {}
auxdata = {}
for auxmon in self.auxmons:
# If this network hasn't pushed a job yet, skip it
if auxmon.last_work['hash'] is None:
continue
merged_work[auxmon.last_work['chainid']] = dict(
hash=auxmon.last_work['hash'],
target=auxmon.last_work['type'])
tree, size = bitcoin_data.make_auxpow_tree(merged_work)
mm_hashes = [
merged_work.get(tree.get(i), dict(hash=0))['hash']
for i in xrange(size)
]
mm_data = '\xfa\xbemm'
mm_data += bitcoin_data.aux_pow_coinbase_type.pack(
dict(
merkle_root=bitcoin_data.merkle_hash(mm_hashes),
size=size,
nonce=0,
))
for auxmon in self.auxmons:
if auxmon.last_work['hash'] is None:
continue
data = dict(target=auxmon.last_work['target'],
hash=auxmon.last_work['hash'],
height=auxmon.last_work['height'],
found_block=auxmon.found_block,
index=mm_hashes.index(auxmon.last_work['hash']),
type=auxmon.last_work['type'],
hashes=mm_hashes)
auxdata[auxmon.config['currency']] = data
else:
auxdata = {}
mm_data = None
# here we recalculate the current merkle branch and partial
# coinbases for passing to the mining clients
coinbase = Transaction()
coinbase.version = 2
# create a coinbase input with encoded height and padding for the
# extranonces so script length is accurate
extranonce_length = (self.manager.config['extranonce_size'] +
self.manager.config['extranonce_serv_size'])
coinbase.inputs.append(
Input.coinbase(self._last_gbt['height'],
addtl_push=[mm_data] if mm_data else [],
extra_script_sig=b'\0' * extranonce_length))
coinbase_value = self._last_gbt['coinbasevalue']
# Payout Darkcoin masternodes
mn_enforcement = self._last_gbt.get('enforce_masternode_payments',
True)
if (self.config['payout_drk_mn'] is True or mn_enforcement is True) \
and self._last_gbt.get('payee', '') != '':
# Grab the darkcoin payout amount, default to 20%
payout = self._last_gbt.get('payee_amount', coinbase_value / 5)
coinbase_value -= payout
coinbase.outputs.append(
Output.to_address(payout, self._last_gbt['payee']))
self.logger.debug(
"Created TX output for masternode at ({}:{}). Coinbase value "
"reduced to {}".format(self._last_gbt['payee'], payout,
coinbase_value))
# simple output to the proper address and value
coinbase.outputs.append(
Output.to_address(coinbase_value, self.config['pool_address']))
job_id = hexlify(struct.pack(str("I"), self._job_counter))
bt_obj = BlockTemplate.from_gbt(
self._last_gbt, coinbase, extranonce_length, [
Transaction(unhexlify(t['data']), fees=t['fee'])
for t in self._last_gbt['transactions']
])
# add in our merged mining data
if mm_data:
hashes = [
bitcoin_data.hash256(tx.raw) for tx in bt_obj.transactions
]
bt_obj.merkle_link = bitcoin_data.calculate_merkle_link([None] +
hashes, 0)
bt_obj.merged_data = auxdata
bt_obj.job_id = job_id
bt_obj.diff1 = self.config['diff1']
bt_obj.algo = self.config['algo']
bt_obj.currency = self.config['currency']
bt_obj.pow_block_hash = self.config['pow_block_hash']
bt_obj.block_height = self._last_gbt['height']
bt_obj.acc_shares = set()
if flush:
bt_obj.type = 0
elif push:
bt_obj.type = 1
else:
bt_obj.type = 2
bt_obj.found_block = self.found_block
# Push the fresh job to users after updating details
self._job_counter += 1
if flush:
self.jobs.clear()
self.jobs[job_id] = bt_obj
self.latest_job = bt_obj
self.new_job.job = bt_obj
self.new_job.set()
self.new_job.clear()
event = ("{name}.jobmanager.new_job:1|c\n".format(
name=self.manager.config['procname']))
if push or flush:
self.logger.info(
"{}: New block template with {:,} trans. "
"Diff {:,.4f}. Subsidy {:,.2f}. Height {:,}. Merged: {}".
format("FLUSH" if flush else "PUSH",
len(self._last_gbt['transactions']),
bits_to_difficulty(self._last_gbt['bits']),
self._last_gbt['coinbasevalue'] / 100000000.0,
self._last_gbt['height'], ', '.join(auxdata.keys())))
event += ("{name}.jobmanager.work_push:1|c\n".format(
name=self.manager.config['procname']))
# Stats and notifications now that it's pushed
if flush:
event += ("{name}.jobmanager.work_restart:1|c\n".format(
name=self.manager.config['procname']))
self.logger.info("New {} network block announced! Wiping previous"
" jobs and pushing".format(network))
elif push:
self.logger.info(
"New {} network block announced, pushing new job!".format(
network))
if new_block:
hex_bits = hexlify(bt_obj.bits)
self.current_net['difficulty'] = bits_to_difficulty(hex_bits)
self.current_net['subsidy'] = bt_obj.total_value
self.current_net['height'] = bt_obj.block_height - 1
self.current_net['last_block'] = time.time()
self.current_net['prev_hash'] = bt_obj.hashprev_be_hex
self.current_net['transactions'] = len(bt_obj.transactions)
event += ("{name}.{curr}.difficulty:{diff}|g\n"
"{name}.{curr}.subsidy:{subsidy}|g\n"
"{name}.{curr}.job_generate:{t}|g\n"
"{name}.{curr}.height:{height}|g".format(
name=self.manager.config['procname'],
curr=self.config['currency'],
diff=self.current_net['difficulty'],
subsidy=bt_obj.total_value,
height=bt_obj.block_height - 1,
t=(time.time() - self._last_gbt['update_time']) *
1000))
self.manager.log_event(event)
def generate_job(self, push=False, flush=False, new_block=False):
""" Creates a new job for miners to work on. Push will trigger an
event that sends new work but doesn't force a restart. If flush is
true a job restart will be triggered. """
# aux monitors will often call this early when not needed at startup
if not self._last_gbt:
self.logger.warn("Cannot generate new job, missing last GBT info")
return
if self.merged_work:
tree, size = bitcoin_data.make_auxpow_tree(self.merged_work)
mm_hashes = [
self.merged_work.get(tree.get(i), dict(hash=0))['hash']
for i in xrange(size)
]
mm_data = '\xfa\xbemm'
mm_data += bitcoin_data.aux_pow_coinbase_type.pack(
dict(
merkle_root=bitcoin_data.merkle_hash(mm_hashes),
size=size,
nonce=0,
))
merged_data = {}
for aux_work in self.merged_work.itervalues():
data = dict(target=aux_work['target'],
hash=aux_work['hash'],
height=aux_work['height'],
index=mm_hashes.index(aux_work['hash']),
type=aux_work['type'],
hashes=mm_hashes)
merged_data[aux_work['type']] = data
else:
merged_data = {}
mm_data = None
self.logger.info("Generating new block template with {} trans. "
"Diff {:,.4f}. Subsidy {:,.2f}. Height {:,}. "
"Merged chains: {}".format(
len(self._last_gbt['transactions']),
bits_to_difficulty(self._last_gbt['bits']),
self._last_gbt['coinbasevalue'] / 100000000.0,
self._last_gbt['height'],
', '.join(merged_data.keys())))
# here we recalculate the current merkle branch and partial
# coinbases for passing to the mining clients
coinbase = Transaction()
coinbase.version = 2
# create a coinbase input with encoded height and padding for the
# extranonces so script length is accurate
extranonce_length = (self.config['extranonce_size'] +
self.config['extranonce_serv_size'])
coinbase.inputs.append(
Input.coinbase(self._last_gbt['height'],
addtl_push=[mm_data] if mm_data else [],
extra_script_sig=b'\0' * extranonce_length))
# Darkcoin payee amount
if self._last_gbt.get('payee', '') != '':
payout = self._last_gbt['coinbasevalue'] / 5
self._last_gbt['coinbasevalue'] -= payout
coinbase.outputs.append(
Output.to_address(payout, self._last_gbt['payee']))
self.logger.info(
"Paying out masternode at addr {}. Payout {}. Blockval reduced to {}"
.format(self._last_gbt['payee'], payout,
self._last_gbt['coinbasevalue']))
# simple output to the proper address and value
coinbase.outputs.append(
Output.to_address(self._last_gbt['coinbasevalue'],
self.config['pool_address']))
job_id = hexlify(struct.pack(str("I"), self._job_counter))
bt_obj = BlockTemplate.from_gbt(
self._last_gbt, coinbase, extranonce_length, [
Transaction(unhexlify(t['data']), fees=t['fee'])
for t in self._last_gbt['transactions']
])
# add in our merged mining data
if mm_data:
hashes = [
bitcoin_data.hash256(tx.raw) for tx in bt_obj.transactions
]
bt_obj.merkle_link = bitcoin_data.calculate_merkle_link([None] +
hashes, 0)
bt_obj.merged_data = merged_data
bt_obj.job_id = job_id
bt_obj.diff1 = self.config['diff1']
bt_obj.algo = self.config['algo']
bt_obj.pow_block_hash = self.config['pow_block_hash']
bt_obj.block_height = self._last_gbt['height']
bt_obj.acc_shares = set()
if push:
if flush:
self.logger.info("New work announced! Wiping previous jobs...")
self.jobs.clear()
self.latest_job = None
else:
self.logger.info("New work announced!")
self._job_counter += 1
self.jobs[job_id] = bt_obj
self.latest_job = job_id
if push:
t = time.time()
bt_obj.stratum_string()
for idx, client in viewitems(self.stratum_manager.clients):
try:
if client.authenticated:
client._push(bt_obj, flush=flush)
except AttributeError:
pass
self.logger.info(
"New job enqueued for transmission to {} users in {}".format(
len(self.stratum_manager.clients),
time_format(time.time() - t)))
if flush:
self.server['work_restarts'].incr()
self.server['work_pushes'].incr()
self.server['new_jobs'].incr()
if new_block:
hex_bits = hexlify(bt_obj.bits)
self.current_net['difficulty'] = bits_to_difficulty(hex_bits)
self.current_net['subsidy'] = bt_obj.total_value
self.current_net['height'] = bt_obj.block_height - 1
self.current_net['prev_hash'] = bt_obj.hashprev_be_hex
self.current_net['transactions'] = len(bt_obj.transactions)
def test_block_header3(self):
# pulled from heavycoin blockchain and modded slightly with full block header
block_data = {
'bits':
'1c040773',
'hash':
'000000000035ef615d0708b7409021bde4e29ab063f7f8b531197d8230a931ca',
'height':
122588,
'merkleroot':
'105faebb2ac14858bbf92d1ebd29dd49b5fd532a54097bc76818e3668dd6925b',
'nonce':
hexlify(pack(str(">L"), 825226627)),
'previousblockhash':
'0000000003d8d235668c6d41389dd703b828f4a0f02d30a37e62ca10ab144b3f',
'curtime':
1409012334,
"vote":
1,
"reward":
434,
'tx':
[('105faebb2ac14858bbf92d1ebd29dd49b5fd532a54097bc76818e3668dd6925b',
'01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff1103dcde010453fbd26e7b00000b7b000000ffffffff010072d71a0a0000001976a914caf784fd449b3cdde48c7542640f14b34aed42fd88ac00000000'
)],
'version':
350470948
}
# make a list of objects
# confirm that the objects hash correctly
coinbase = None
transactions = [
Transaction(unhexlify(data.encode('ascii')),
disassemble=True,
coin='HVC') for _, data in block_data['tx']
]
self.assertEquals(
hexlify(merkleroot(transactions, be=True,
hash_func=hvc_hash)[0]).decode('ascii'),
block_data['merkleroot'])
for obj, hsh in zip(transactions, block_data['tx']):
hsh = hsh[0]
obj.disassemble()
self.assertEquals(obj.behexhash, hsh)
if obj.is_coinbase:
idx = transactions.index(obj)
coinbase = transactions.pop(idx)
print("Found coinbase idx {} Amount is {}".format(
idx, coinbase.outputs[0].amount))
pprint(coinbase.to_dict())
tmplt = BlockTemplate.from_gbt(block_data,
coinbase,
transactions=transactions,
coin='HVC')
self.assertEquals(
hexlify(tmplt.merkleroot_be(coinbase)).decode('ascii'),
block_data['merkleroot'])
header = tmplt.block_header(block_data['nonce'],
b'',
b'',
nvote=hexlify(
pack(str(">H"), block_data['vote'])))
self.assertEquals(block_data['hash'],
hexlify(hvc_powhash(header)[::-1]).decode('ascii'))
def test_block_header4(self):
# pulled from mozzshare blockchain and modded slightly with full block header
block_data = {
'bits':
'1b65bf06',
'hash':
'00000000005f53a4158ec81a7f936875b117add6ddf16052be69db814ed08e5d',
'height':
95477,
'merkleroot':
'68214acafcc87de6c6bf0389cf6fbaf85ce602972e188a422320260f28e57adc',
'nonce':
hexlify(pack(str(">L"), 12348287)),
'previousblockhash':
'00000000003fbdcb0529f2df6b9e846092c25fd472117f2dade884be824a519f',
'curtime':
1412981134,
"reward":
120,
'tx': [
('273de181f48d64299a81b16705fc0d7d9ee392e258af96a1e10a9dffce13d64c',
'01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff2703f57401062f503253482f048661385408f80031f9dc0100000d2f7374726174756d506f6f6c2f0000000001408544cb020000001976a9145944e74d6aaf83be927703ad95e7308787bb55c588ac00000000'
),
('d4fb5de6290873a66171d167ae91cec59e116e23c2a88b50741671a76061176e',
'0100000001fccce331a39a2b923ee88c7660e0803214f9a677314f21c7cb3a81e25eeb9158010000006c493046022100c13d4e43a267fa6e3b74d559eb985e886d8efe6d7f78c6105d5f6e46677e9c0d02210096e2acfc2e745286c0e948cd3f085a2da6d396277644669f448699a280bcc955012102dfaf5dfed2eec785ed262b574b2cf1c2b5e613ca5149b24725b54cb62c8e94acffffffff02f2f1b507000000001976a914ea76974eccf823d94a3615c1a0a117dec16533d888ac1ac96ae4010000001976a914e2c6ffbd9a5187e474d8278f4d2ad4f2adad17cf88ac00000000'
),
('2daaa24179c2bf1c95da24f8ea3bf4d2722326c03f6407676b23edb42d0c908d',
'010000000154f1cf0ee5b7efd7e3f3d3e1b81d98c743c0b1ab8257a82119ac6d0e73362876000000006b4830450220153fb11ac82d3d97addb82e717d5cc95c0d4c31dc709d4f634f82d5c93bb2730022100b12f8251a57238bbaa5c1e6c6552c1d64671a0130a24afcffad723b6fe0f8bfc0121024a192ab361b42cb0aab26e877423b4c51402d98423912f5faad243a301285e9dffffffff02ca154407000000001976a914b652ec06255ecd4708f416e8ae17646b773d09e088acef47e09c010000001976a9149212ca9f86bc8f699f31be024d092963661a0eff88ac00000000'
),
],
'version':
325781176
}
# make a list of objects
# confirm that the objects hash correctly
coinbase = None
transactions = [
Transaction(unhexlify(data.encode('ascii')),
disassemble=True,
coin='MLS') for _, data in block_data['tx']
]
self.assertEquals(
hexlify(merkleroot(transactions, be=True,
hash_func=hvc_hash)[0]).decode('ascii'),
block_data['merkleroot'])
for obj, hsh in zip(transactions, block_data['tx']):
hsh = hsh[0]
obj.disassemble()
self.assertEquals(obj.behexhash, hsh)
if obj.is_coinbase:
idx = transactions.index(obj)
coinbase = transactions.pop(idx)
print("Found coinbase idx {} Amount is {}".format(
idx, coinbase.outputs[0].amount))
pprint(coinbase.to_dict())
tmplt = BlockTemplate.from_gbt(block_data,
coinbase,
transactions=transactions,
coin='MLS')
self.assertEquals(
hexlify(tmplt.merkleroot_be(coinbase)).decode('ascii'),
block_data['merkleroot'])
header = tmplt.block_header(block_data['nonce'], b'', b'')
self.assertEquals(block_data['hash'],
hexlify(hvc_powhash(header)[::-1]).decode('ascii'))
def test_block_header(self):
# pulled from dogecoin blockchain and modded slightly, height 50000
block_data = {
'bits':
'1c00c7ec',
'hash':
'e4cab588a33147a217c8bc2f923fcd1f642fde26c7c797a5c2c4808c4c617a7e',
'height':
50000,
'merkleroot':
'5af19843e6220965f3c4b5f8d3995796edff0aad5ee4cc6ab849333881c001e1',
'nonce':
hexlify(pack(str(">L"), 3014526208)),
'previousblockhash':
'7f0502292609f5949260403176e8874ec7c5376397641d3f660648e7fdda0bab',
'curtime':
1389349309,
'tx':
[('d4eeb0cd44a4339d1a9fe8cea9482689165cff6ed1a3f4815bafcb443cdd271e',
'01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff250350c300062f503253482f04bcc9cf5208f80032c0020000000b2f4e757432506f6f6c732f00000000010b54074f2f4b00001976a9141b3fdba0ff497a9d8e84d65e9b078e23e46e97f088ac00000000'
),
('481fce0e2572dd782369dcc2457c267bb70918e825dfedd6e178ddf28d016cde',
'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'
),
('74c60a18fc9a265cf78973d36e20b781ae427d4d62e9818bc51de000ef6fb1e3',
'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'
),
('12127842a829a588be0ac25a3ab5505925e79440d6911d22dd1059c79b9966e7',
'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'
),
('48d5713b929e28f1810cc7effdbfb0cb11bc88068bfbb1c9f076536b794715af',
'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'
),
('212499f6527467b49cdf946524b42266ca8751616a41b7181d3a8931da7b240e',
'01000000018fa554391f4e45ae96b9c6e9bd35f1cf38737ee9ad67ba401329df7497625513000000006b483045022019331f164d059057e5dc12bab158678ba65faf1b9542811434ce13e1179550b4022100e2375b7f350b18c1bde49c8ddd7d245282b931e1a8204018bb01b8abff94f4790121038f63d5c111706674f50f3d28729fe9848e9a3aee0b965c674d14e2155c5ee35bffffffff0200a3af46bb0000001976a9149cc45c2d78927f22ab4008a907becf6ab642258288aca019f807000000001976a9144d4952746b2777f3d07a89ad0ffd02e2e1d9aed288ac00000000'
),
('47bce257235ab0f6c8526a12fc23e3bec10bbd1d87a3a261f624ff5c0d2730f2',
'0100000001a16eaa30e2d56f3a3a94bf4b640c2ffaa3ccd09ce3926567b2e63e3f4d55df26000000006b48304502203579c6afe9b7365252c0424aa5e3b9d00c850f2beee0c0b2f66ac7652c4eb002022100ca44a4a0e7d2ff81de117efd144a89c70acc87eaf2e3454fed175f0ef9b6f562012103f5f17ee5b476803cf332d56c293ce59aa77a5046a284c9f7a523fefd911e9980ffffffff0260119d0a010000001976a9149e027ca13765f6558fcbab6acec2fc561fc5dd3288ac9ec1764b010000001976a914957acdecb251260da54dc8510497cb761db0698c88ac00000000'
),
('6b74e1534ee50fc7158593831e322717fa536d65cbeb03fe53b30b31853fa033',
'010000000153323c2dbba06bc58227354b013d31ba01ba814fa5681fb211c039979cac1643000000006b483045022054f7930a06af7da2a3e35c3fbb9bb0fbf5897c9296286de46d96763ea8c1d8fc0221009b8d53d5964a57fc8469ece1b0ef6f43e2cdbe1d4d72308d04491cb4705f95ce012103bbd11e6843ebcbcd2024265332738d8e1ebc7d0bb4b3a2e5b7a8bd6ece14bcb7ffffffff029feec0e4000000001976a91481d7f7a63b4a4e236b3b5d43067212e52bcd25ae88acf73d7520000000001976a91447cd32e2669d30d86d1c6708b890b9d7c7b632f188ac00000000'
)],
'version':
1
}
# make a list of objects
# confirm that the objects hash correctly
coinbase = None
transactions = [
Transaction(unhexlify(data.encode('ascii')), disassemble=True)
for _, data in block_data['tx']
]
self.assertEquals(
hexlify(merkleroot(transactions, be=True)[0]).decode('ascii'),
block_data['merkleroot'])
for obj, hsh in zip(transactions, block_data['tx']):
hsh = hsh[0]
obj.disassemble()
self.assertEquals(obj.behexhash, hsh)
if obj.is_coinbase:
idx = transactions.index(obj)
coinbase = transactions.pop(idx)
print("Found coinbase idx {} Amount is {}".format(
idx, coinbase.outputs[0].amount))
tmplt = BlockTemplate.from_gbt(block_data,
coinbase,
transactions=transactions)
self.assertEquals(
hexlify(tmplt.merkleroot_be(coinbase)).decode('ascii'),
block_data['merkleroot'])
header = tmplt.block_header(block_data['nonce'], b'', b'')
self.assertEquals(block_data['hash'],
hexlify(sha256d(header)[::-1]).decode('ascii'))
def generate_job(self, push=False, flush=False, new_block=False, network='main'):
""" Creates a new job for miners to work on. Push will trigger an
event that sends new work but doesn't force a restart. If flush is
true a job restart will be triggered. """
# aux monitors will often call this early when not needed at startup
if not self._last_gbt:
self.logger.warn("Cannot generate new job, missing last GBT info")
return
if self.auxmons:
merged_work = {}
auxdata = {}
for auxmon in self.auxmons:
if auxmon.last_work['hash'] is None:
continue
merged_work[auxmon.last_work['chainid']] = dict(
hash=auxmon.last_work['hash'],
target=auxmon.last_work['type']
)
tree, size = bitcoin_data.make_auxpow_tree(merged_work)
mm_hashes = [merged_work.get(tree.get(i), dict(hash=0))['hash']
for i in xrange(size)]
mm_data = '\xfa\xbemm'
mm_data += bitcoin_data.aux_pow_coinbase_type.pack(dict(
merkle_root=bitcoin_data.merkle_hash(mm_hashes),
size=size,
nonce=0,
))
for auxmon in self.auxmons:
if auxmon.last_work['hash'] is None:
continue
data = dict(target=auxmon.last_work['target'],
hash=auxmon.last_work['hash'],
height=auxmon.last_work['height'],
found_block=auxmon.found_block,
index=mm_hashes.index(auxmon.last_work['hash']),
type=auxmon.last_work['type'],
hashes=mm_hashes)
auxdata[auxmon.config['currency']] = data
else:
auxdata = {}
mm_data = None
# here we recalculate the current merkle branch and partial
# coinbases for passing to the mining clients
coinbase = Transaction()
coinbase.version = 2
# create a coinbase input with encoded height and padding for the
# extranonces so script length is accurate
extranonce_length = (self.manager.config['extranonce_size'] +
self.manager.config['extranonce_serv_size'])
coinbase.inputs.append(
Input.coinbase(self._last_gbt['height'],
addtl_push=[mm_data] if mm_data else [],
extra_script_sig=b'\0' * extranonce_length))
coinbase_value = self._last_gbt['coinbasevalue']
# Payout Darkcoin masternodes
mn_enforcement = self._last_gbt.get('enforce_masternode_payments', True)
if (self.config['payout_drk_mn'] is True or mn_enforcement is True) \
and self._last_gbt.get('payee', '') != '':
# Grab the darkcoin payout amount, default to 20%
payout = self._last_gbt.get('payee_amount', coinbase_value / 5)
coinbase_value -= payout
coinbase.outputs.append(
Output.to_address(payout, self._last_gbt['payee']))
self.logger.debug(
"Created TX output for masternode at ({}:{}). Coinbase value "
"reduced to {}".format(self._last_gbt['payee'], payout,
coinbase_value))
# simple output to the proper address and value
coinbase.outputs.append(
Output.to_address(coinbase_value, self.config['pool_address']))
job_id = hexlify(struct.pack(str("I"), self._job_counter))
bt_obj = BlockTemplate.from_gbt(self._last_gbt,
coinbase,
extranonce_length,
[Transaction(unhexlify(t['data']), fees=t['fee'])
for t in self._last_gbt['transactions']])
# add in our merged mining data
if mm_data:
hashes = [bitcoin_data.hash256(tx.raw) for tx in bt_obj.transactions]
bt_obj.merkle_link = bitcoin_data.calculate_merkle_link([None] + hashes, 0)
bt_obj.merged_data = auxdata
bt_obj.job_id = job_id
bt_obj.diff1 = self.config['diff1']
bt_obj.algo = self.config['algo']
bt_obj.currency = self.config['currency']
bt_obj.pow_block_hash = self.config['pow_block_hash']
bt_obj.block_height = self._last_gbt['height']
bt_obj.acc_shares = set()
if flush:
bt_obj.type = 0
elif push:
bt_obj.type = 1
else:
bt_obj.type = 2
bt_obj.found_block = self.found_block
# Push the fresh job to users after updating details
self._job_counter += 1
if flush:
self.jobs.clear()
self.jobs[job_id] = bt_obj
self.latest_job = bt_obj
self.new_job.job = bt_obj
self.new_job.set()
self.new_job.clear()
event = ("{name}.jobmanager.new_job:1|c\n"
.format(name=self.manager.config['procname']))
if push or flush:
self.logger.info(
"{}: New block template with {:,} trans. "
"Diff {:,.4f}. Subsidy {:,.2f}. Height {:,}. Merged: {}"
.format("FLUSH" if flush else "PUSH",
len(self._last_gbt['transactions']),
bits_to_difficulty(self._last_gbt['bits']),
self._last_gbt['coinbasevalue'] / 100000000.0,
self._last_gbt['height'],
', '.join(auxdata.keys())))
event += ("{name}.jobmanager.work_push:1|c\n"
.format(name=self.manager.config['procname']))
# Stats and notifications now that it's pushed
if flush:
event += ("{name}.jobmanager.work_restart:1|c\n"
.format(name=self.manager.config['procname']))
self.logger.info("New {} network block announced! Wiping previous"
" jobs and pushing".format(network))
elif push:
self.logger.info("New {} network block announced, pushing new job!"
.format(network))
if new_block:
hex_bits = hexlify(bt_obj.bits)
self.current_net['difficulty'] = bits_to_difficulty(hex_bits)
self.current_net['subsidy'] = bt_obj.total_value
self.current_net['height'] = bt_obj.block_height - 1
self.current_net['last_block'] = time.time()
self.current_net['prev_hash'] = bt_obj.hashprev_be_hex
self.current_net['transactions'] = len(bt_obj.transactions)
event += (
"{name}.{curr}.difficulty:{diff}|g\n"
"{name}.{curr}.subsidy:{subsidy}|g\n"
"{name}.{curr}.job_generate:{t}|g\n"
"{name}.{curr}.height:{height}|g"
.format(name=self.manager.config['procname'],
curr=self.config['currency'],
diff=self.current_net['difficulty'],
subsidy=bt_obj.total_value,
height=bt_obj.block_height - 1,
t=(time.time() - self._last_gbt['update_time']) * 1000))
self.manager.log_event(event)
def test_stratum_confirm(self):
""" Test some raw data from cgminer submitting a share, confirm
hashes come out the same as cgminer.
Raw stratum params:
"""
gbt = {
u'bits': u'1e00e92b',
u'coinbaseaux': {
u'flags': u'062f503253482f'
},
u'coinbasevalue': 5000000000,
u'curtime': 1392509565,
u'height': 203588,
u'mintime': 1392508633,
u'mutable': [u'time', u'transactions', u'prevblock'],
u'noncerange': u'00000000ffffffff',
u'previousblockhash':
u'b0f5ecb62774f2f07fdc0f72fa0585ae3e8ca78ad8692209a355d12bc690fb73',
u'sigoplimit': 20000,
u'sizelimit': 1000000,
u'target':
u'000000e92b000000000000000000000000000000000000000000000000000000',
u'transactions': [],
u'version': 2
}
extra1 = '0000000000000000'
submit = {
'extra2':
'00000000',
'nonce':
'd5160000',
'result':
'000050ccfe8a3efe93b2ee33d2aecf4a60c809995c7dd19368a7d00c86880f30'
}
# build a block template object from the raw data
coinbase = Transaction()
coinbase.version = 2
coinbase.inputs.append(Input.coinbase(gbt['height'], [b'\0' * 12]))
coinbase.outputs.append(
Output.to_address(gbt['coinbasevalue'],
'D7QJyeBNuwEqxsyVCLJi3pHs64uPdMDuBa'))
transactions = []
for trans in gbt['transactions']:
new_trans = Transaction(unhexlify(trans['data']),
fees=trans['fee'])
assert trans['hash'] == new_trans.lehexhash
transactions.append(new_trans)
bt = BlockTemplate.from_gbt(gbt, coinbase, 12, transactions)
send_params = bt.stratum_params()
print(
"job_id: {0}\nprevhash: {1}\ncoinbase1: {2}\ncoinbase2: {3}"
"\nmerkle_branch: {4}\nversion: {5}\nnbits: {6}\nntime: {7}".
format(*send_params))
header = bt.block_header(submit['nonce'], extra1, submit['extra2'])
target = target_from_diff(
1,
0x0000FFFF00000000000000000000000000000000000000000000000000000000)
self.assertEquals(
hexlify(sha256d(header)[::-1]).decode('ascii'), submit['result'])
assert hash_int < target
def generate_job(self, push=False, flush=False, new_block=False):
""" Creates a new job for miners to work on. Push will trigger an
event that sends new work but doesn't force a restart. If flush is
true a job restart will be triggered. """
# aux monitors will often call this early when not needed at startup
if not self._last_gbt:
self.logger.warn("Cannot generate new job, missing last GBT info")
return
if self.merged_work:
tree, size = bitcoin_data.make_auxpow_tree(self.merged_work)
mm_hashes = [self.merged_work.get(tree.get(i), dict(hash=0))['hash']
for i in xrange(size)]
mm_data = '\xfa\xbemm'
mm_data += bitcoin_data.aux_pow_coinbase_type.pack(dict(
merkle_root=bitcoin_data.merkle_hash(mm_hashes),
size=size,
nonce=0,
))
merged_data = {}
for aux_work in self.merged_work.itervalues():
data = dict(target=aux_work['target'],
hash=aux_work['hash'],
height=aux_work['height'],
index=mm_hashes.index(aux_work['hash']),
type=aux_work['type'],
hashes=mm_hashes)
merged_data[aux_work['type']] = data
else:
merged_data = {}
mm_data = None
self.logger.info("Generating new block template with {} trans. "
"Diff {:,.4f}. Subsidy {:,.2f}. Height {:,}. "
"Merged chains: {}"
.format(len(self._last_gbt['transactions']),
bits_to_difficulty(self._last_gbt['bits']),
self._last_gbt['coinbasevalue'] / 100000000.0,
self._last_gbt['height'],
', '.join(merged_data.keys())))
# here we recalculate the current merkle branch and partial
# coinbases for passing to the mining clients
coinbase = Transaction()
coinbase.version = 2
# create a coinbase input with encoded height and padding for the
# extranonces so script length is accurate
extranonce_length = (self.config['extranonce_size'] +
self.config['extranonce_serv_size'])
coinbase.inputs.append(
Input.coinbase(self._last_gbt['height'],
addtl_push=[mm_data] if mm_data else [],
extra_script_sig=b'\0' * extranonce_length))
# Darkcoin payee amount
if self._last_gbt.get('payee', '') != '':
payout = self._last_gbt['coinbasevalue'] / 5
self._last_gbt['coinbasevalue'] -= payout
coinbase.outputs.append(
Output.to_address(payout, self._last_gbt['payee']))
self.logger.info("Paying out masternode at addr {}. Payout {}. Blockval reduced to {}"
.format(self._last_gbt['payee'], payout, self._last_gbt['coinbasevalue']))
# simple output to the proper address and value
coinbase.outputs.append(
Output.to_address(self._last_gbt['coinbasevalue'], self.config['pool_address']))
job_id = hexlify(struct.pack(str("I"), self._job_counter))
bt_obj = BlockTemplate.from_gbt(self._last_gbt,
coinbase,
extranonce_length,
[Transaction(unhexlify(t['data']), fees=t['fee'])
for t in self._last_gbt['transactions']])
# add in our merged mining data
if mm_data:
hashes = [bitcoin_data.hash256(tx.raw) for tx in bt_obj.transactions]
bt_obj.merkle_link = bitcoin_data.calculate_merkle_link([None] + hashes, 0)
bt_obj.merged_data = merged_data
bt_obj.job_id = job_id
bt_obj.diff1 = self.config['diff1']
bt_obj.algo = self.config['algo']
bt_obj.pow_block_hash = self.config['pow_block_hash']
bt_obj.block_height = self._last_gbt['height']
bt_obj.acc_shares = set()
if push:
if flush:
self.logger.info("New work announced! Wiping previous jobs...")
self.jobs.clear()
self.latest_job = None
else:
self.logger.info("New work announced!")
self._job_counter += 1
self.jobs[job_id] = bt_obj
self.latest_job = job_id
if push:
t = time.time()
bt_obj.stratum_string()
for idx, client in viewitems(self.stratum_manager.clients):
try:
if client.authenticated:
client._push(bt_obj, flush=flush)
except AttributeError:
pass
self.logger.info("New job enqueued for transmission to {} users in {}"
.format(len(self.stratum_manager.clients),
time_format(time.time() - t)))
if flush:
self.server['work_restarts'].incr()
self.server['work_pushes'].incr()
self.server['new_jobs'].incr()
if new_block:
hex_bits = hexlify(bt_obj.bits)
self.current_net['difficulty'] = bits_to_difficulty(hex_bits)
self.current_net['subsidy'] = bt_obj.total_value
self.current_net['height'] = bt_obj.block_height - 1
self.current_net['prev_hash'] = bt_obj.hashprev_be_hex
self.current_net['transactions'] = len(bt_obj.transactions)
def generate_job(self, push=False, flush=False, new_block=False):
""" Creates a new job for miners to work on. Push will trigger an
event that sends new work but doesn't force a restart. If flush is
true a job restart will be triggered. """
# aux monitors will often call this early when not needed at startup
if self.last_gbt is None:
return
merged_work = self.net_state['merged_work']
if self.net_state['merged_work']:
tree, size = bitcoin_data.make_auxpow_tree(merged_work)
mm_hashes = [merged_work.get(tree.get(i), dict(hash=0))['hash']
for i in xrange(size)]
mm_data = '\xfa\xbemm'
mm_data += bitcoin_data.aux_pow_coinbase_type.pack(dict(
merkle_root=bitcoin_data.merkle_hash(mm_hashes),
size=size,
nonce=0,
))
mm_later = [(aux_work, mm_hashes.index(aux_work['hash']), mm_hashes)
for chain_id, aux_work in merged_work.iteritems()]
else:
mm_later = []
mm_data = None
with self.job_lock:
# here we recalculate the current merkle branch and partial
# coinbases for passing to the mining clients
coinbase = Transaction()
coinbase.version = 2
# create a coinbase input with encoded height and padding for the
# extranonces so script length is accurate
extranonce_length = (self.config['extranonce_size'] +
self.config['extranonce_serv_size'])
coinbase.inputs.append(
Input.coinbase(self.last_gbt['height'],
addtl_push=[mm_data] if mm_data else [],
extra_script_sig=b'\0' * extranonce_length))
# simple output to the proper address and value
coinbase.outputs.append(
Output.to_address(self.last_gbt['coinbasevalue'] - self.last_gbt['fees'], self.config['pool_address']))
job_id = hexlify(struct.pack(str("I"), self.net_state['job_counter']))
logger.info("Generating new block template with {} trans. Diff {}. Subsidy {}. Fees {}."
.format(len(self.net_state['transactions']),
bits_to_difficulty(self.last_gbt['bits']),
self.last_gbt['coinbasevalue'],
self.last_gbt['fees']))
bt_obj = BlockTemplate.from_gbt(self.last_gbt, coinbase, extranonce_length, [])
bt_obj.mm_later = copy(mm_later)
# hashes = [bitcoin_data.hash256(tx.raw) for tx in bt_obj.transactions]
bt_obj.merkle_link = bitcoin_data.calculate_merkle_link([None], 0)
bt_obj.job_id = job_id
bt_obj.block_height = self.last_gbt['height']
bt_obj.acc_shares = set()
if push:
if flush:
logger.info("New work announced! Wiping previous jobs...")
self.net_state['jobs'].clear()
self.net_state['latest_job'] = None
else:
logger.info("New work announced!")
self.net_state['job_counter'] += 1
self.net_state['jobs'][job_id] = bt_obj
self.net_state['latest_job'] = job_id
if push:
for idx, client in viewitems(self.stratum_clients):
try:
if flush:
client.new_block_event.set()
else:
client.new_work_event.set()
except AttributeError:
pass
if new_block:
if self.config['send_new_block']:
hex_bits = hexlify(bt_obj.bits)
self.celery.send_task_pp('new_block',
bt_obj.block_height,
hex_bits,
bt_obj.total_value)
self.net_state['difficulty'] = bits_to_difficulty(hex_bits)