def serialize(self):
r = []
r.append(struct.pack("<i", self.nVersion))
r.append(util.ser_uint256(self.hashPrevBlock))
r.append(util.ser_uint256(self.hashMerkleRoot))
r.append(struct.pack("<I", self.nTime))
r.append(struct.pack("<I", self.nBits))
r.append(struct.pack("<I", self.nNonce))
r.append(util.ser_vector(self.vtx))
return ''.join(r)
def serialize(self):
r = []
r.append(struct.pack("<i", self.nVersion))
r.append(util.ser_uint256(self.hashPrevBlock))
r.append(util.ser_uint256(self.hashMerkleRoot))
r.append(struct.pack("<I", self.nTime))
r.append(struct.pack("<I", self.nBits))
r.append(struct.pack("<I", self.nNonce))
r.append(util.ser_vector(self.vtx))
return ''.join(r)
def serialize(self):
r = [
struct.pack("<i", self.nVersion),
util.ser_uint256(self.hashPrevBlock),
util.ser_uint256(self.hashMerkleRoot),
struct.pack("<I", self.nTime),
struct.pack("<I", self.nBits),
struct.pack("<I", self.nNonce),
util.ser_vector(self.vtx)
]
return ''.join(r)
def submit_share(self, job_id, worker_name, session, extranonce1_bin, data,
difficulty):
job = self.get_job(job_id)
if job == None:
raise SubmitException("Job '%s' not found" % job_id)
ntime = util.flip(data[136:144])
if not job.check_ntime(int(ntime, 16)):
raise SubmitException("Ntime out of range")
if not job.register_submit(data):
log.info("Duplicate from %s, (%s %s)" % \
(worker_name, binascii.hexlify(extranonce1_bin), data))
raise SubmitException("Duplicate share")
hash_int = gapcoin_hash.getpowdiff(str(data))
block_hash_bin = util.doublesha(binascii.unhexlify(data[0:168]))
block_hash_hex = util.rev(binascii.hexlify(block_hash_bin))
'''log.info("block_hash_hex %s" % block_hash_hex)
log.info("shrint %s" % hash_int)
log.info("jobint %s" % job.target)%f
log.info("target %s" % difficulty)'''
if hash_int < difficulty:
raise SubmitException("Share less than target")
share_diff = float(float(hash_int) / float(pow(2, 48)))
if hash_int >= job.target:
log.info("BLOCK CANDIDATE! %s" % block_hash_hex)
extranonce2_bin = struct.pack('>L', 0)
#self.last_block.vtx[0].set_extranonce(extranonce1_bin + extranonce2_bin)
#txs = binascii.hexlify(util.ser_vector(self.last_block.vtx))
job.vtx[0].set_extranonce(extranonce1_bin + extranonce2_bin)
txs = binascii.hexlify(util.ser_vector(job.vtx))
serialized = str(data) + str(txs)
on_submit = self.bitcoin_rpc.submitblock(str(data), str(txs),
block_hash_hex)
if on_submit:
self.update_block()
return (block_hash_hex, share_diff, on_submit)
return (block_hash_hex, share_diff, None)
def serialize(self):
r = []
r.append(struct.pack("<i", self.nVersion))
r.append(util.ser_uint256(self.hashPrevBlock))
r.append(util.ser_uint256(self.hashMerkleRoot))
r.append(struct.pack("<I", self.nTime))
r.append(struct.pack("<I", self.nBits))
r.append(struct.pack("<I", self.nNonce))
r.append(util.ser_uint256(self.hashstateroot))
r.append(util.ser_uint256(self.hashutxoroot))
r.append(
binascii.unhexlify(
"0000000000000000000000000000000000000000000000000000000000000000ffffffff00"
))
r.append(util.ser_vector(self.vtx))
return ''.join(r)
def submit_share(self, job_id, worker_name, session, extranonce1_bin,
extranonce2, ntime, nonce, difficulty):
# Check for job
job = self.get_job(job_id)
if job == None:
raise SubmitException("Job '%s' not found" % job_id)
nonce = util.rev(nonce)
ntime = util.rev(ntime)
extranonce2_bin = binascii.unhexlify(extranonce2)
ntime_bin = binascii.unhexlify(ntime)
nonce_bin = binascii.unhexlify(nonce)
# Check if extranonce2 looks correctly. extranonce2 is in hex form...
if len(extranonce2) != self.extranonce2_size * 2:
raise SubmitException(
"Incorrect size of extranonce2. Expected %d chars" %
(self.extranonce2_size * 2))
# Check if ntime looks correct
if len(ntime) != 8:
raise SubmitException("Incorrect size of ntime. Expected 8 chars")
if not job.check_ntime(int(ntime, 16)):
raise SubmitException("Ntime out of range")
# Check nonce
if len(nonce) != 8:
raise SubmitException("Incorrect size of nonce. Expected 8 chars")
# Check for duplicated submit
if not job.register_submit(extranonce1_bin, extranonce2, ntime, nonce):
log.info("Duplicate from %s, (%s %s %s %s)" % \
(worker_name, binascii.hexlify(extranonce1_bin), extranonce2, ntime, nonce))
raise SubmitException("Duplicate share")
# 1. Build coinbase
coinbase_bin = job.serialize_coinbase(extranonce1_bin, extranonce2_bin)
coinbase_hash = kshake320_hash.getHash320(coinbase_bin)
# 2. Calculate merkle root
merkle_root_bin = job.merkletree.withFirst(coinbase_hash)
merkle_root_int = util.uint320_from_str(merkle_root_bin)
# 3. Serialize header with given merkle, ntime and nonce
header_bin = job.serialize_header(merkle_root_bin, int(ntime, 16),
int(nonce, 16))
header_hex = binascii.hexlify(header_bin)
header_hex = header_hex + "0000000000000000"
# 4. Reverse header and compare it with target of the user
hash_bin = kshake320_hash.getPoWHash(header_bin)
hash_int = util.uint320_from_str(hash_bin)
hash_hex = "%080x" % hash_int
block_hash_hex = hash_bin[::-1].encode('hex_codec')
target_user = float(self.diff_to_target(difficulty))
if hash_int > target_user:
log.info("ABOVE TARGET!")
raise SubmitException("Share above target")
target_info = self.diff_to_target(50)
if hash_int <= target_info:
log.info("YAY, share with diff above 50")
# Algebra tells us the diff_to_target is the same as hash_to_diff
share_diff = float(self.diff_to_target(hash_int))
if hash_int <= job.target:
# Yay! It is block candidate!
log.info("BLOCK CANDIDATE! %s" % block_hash_hex)
# Finalize and serialize block object
job.finalize(merkle_root_int, extranonce1_bin, extranonce2_bin,
int(ntime, 16), int(nonce, 16))
if not job.is_valid():
# Should not happen
log.info("FINAL JOB VALIDATION FAILED!")
# Submit block to the network
'''serialized = binascii.hexlify(job.serialize())
on_submit = self.bitcoin_rpc.submitblock(str(serialized), block_hash_hex)'''
job.vtx[0].set_extranonce(extranonce1_bin + extranonce2_bin)
txs = binascii.hexlify(util.ser_vector(job.vtx))
on_submit = self.bitcoin_rpc.submitblock_wtxs(
str(header_hex), str(txs), block_hash_hex)
'''if on_submit:
self.update_block()'''
return (block_hash_hex, share_diff, on_submit)
return (block_hash_hex, share_diff, None)