def submit_share(self, job_id, worker_name, session, extranonce1_bin,
extranonce2, ntime, nonce, difficulty):
'''Check parameters and finalize block template. If it leads
to valid block candidate, asynchronously submits the block
back to the bitcoin network.
- extranonce1_bin is binary. No checks performed, it should be from session data
- job_id, extranonce2, ntime, nonce - in hex form sent by the client
- difficulty - decimal number from session, again no checks performed
- submitblock_callback - reference to method which receive result of submitblock()
'''
# 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))
# normalize the case to prevent duplication of valid shares by the client
ntime = ntime.lower()
nonce = nonce.lower()
extranonce2 = extranonce2.lower()
# Check for job
job = self.get_job(job_id)
if job == None:
raise SubmitException("Job '%s' not found" % job_id)
# Check if ntime looks correct
if settings.COINDAEMON_ALGO == 'riecoin':
if len(ntime) != 16:
raise SubmitException(
"Incorrect size of ntime. Expected 16 chars")
else:
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 settings.COINDAEMON_ALGO == 'riecoin':
if len(nonce) != 64:
raise SubmitException(
"Incorrect size of nonce. Expected 64 chars")
else:
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")
# Now let's do the hard work!
# ---------------------------
# 0. Some sugar
extranonce2_bin = binascii.unhexlify(extranonce2)
ntime_bin = binascii.unhexlify(ntime)
nonce_bin = binascii.unhexlify(nonce)
if settings.COINDAEMON_ALGO == 'riecoin':
ntime_bin = (''.join(
[ntime_bin[(1 - i) * 4:(1 - i) * 4 + 4] for i in range(0, 2)]))
nonce_bin = (''.join(
[nonce_bin[(7 - i) * 4:(7 - i) * 4 + 4] for i in range(0, 8)]))
# 1. Build coinbase
coinbase_bin = job.serialize_coinbase(extranonce1_bin, extranonce2_bin)
coinbase_hash = util.doublesha(coinbase_bin)
# 2. Calculate merkle root
merkle_root_bin = job.merkletree.withFirst(coinbase_hash)
merkle_root_int = util.uint256_from_str(merkle_root_bin)
# 3. Serialize header with given merkle, ntime and nonce
header_bin = job.serialize_header(merkle_root_int, ntime_bin,
nonce_bin)
# 4. Reverse header and compare it with target of the user
if settings.COINDAEMON_ALGO == 'scrypt':
hash_bin = ltc_scrypt.getPoWHash(''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 20)]))
elif settings.COINDAEMON_ALGO == 'scrypt-jane':
hash_bin = yac_scrypt.getPoWHash(
''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 20)]),
int(ntime, 16))
elif settings.COINDAEMON_ALGO == 'quark':
hash_bin = quark_hash.getPoWHash(''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 20)]))
elif settings.COINDAEMON_ALGO == 'skeinhash':
hash_bin = skeinhash.skeinhash(''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 20)]))
else:
hash_bin = util.doublesha(''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 20)]))
hash_int = util.uint256_from_str(hash_bin)
scrypt_hash_hex = "%064x" % hash_int
if settings.COINDAEMON_ALGO == 'riecoin':
# this is kind of an ugly hack: we use hash_int to store the number of primes
hash_int = util.riecoinPoW(hash_int, job.target, int(nonce, 16))
header_hex = binascii.hexlify(header_bin)
if settings.COINDAEMON_ALGO == 'scrypt' or settings.COINDAEMON_ALGO == 'scrypt-jane':
header_hex = header_hex + "000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"
elif settings.COINDAEMON_ALGO == 'quark':
header_hex = header_hex + "000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"
elif settings.COINDAEMON_ALGO == 'riecoin':
header_hex = header_hex + "00000080000000000000000080030000"
else:
pass
target_user = self.diff_to_target(difficulty)
if settings.COINDAEMON_ALGO == 'riecoin':
if hash_int < target_user:
raise SubmitException("Share does not meet target")
else:
if hash_int > target_user:
raise SubmitException("Share is above target")
# Mostly for debugging purposes
target_info = self.diff_to_target(100000)
if hash_int <= target_info:
log.info("Yay, share with diff above 100000")
# Algebra tells us the diff_to_target is the same as hash_to_diff
share_diff = int(self.diff_to_target(hash_int))
# 5. Compare hash with target of the network
isBlockCandidate = False
if settings.COINDAEMON_ALGO == 'riecoin':
if hash_int == 6:
isBlockCandidate = True
else:
if hash_int <= job.target:
isBlockCandidate = True
if isBlockCandidate == True:
# Yay! It is block candidate!
log.info("We found a block candidate! %s" % scrypt_hash_hex)
# Reverse the header and get the potential block hash (for scrypt only)
if settings.COINDAEMON_ALGO == 'riecoin':
block_hash_bin = util.doublesha(''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 28)]))
else:
block_hash_bin = util.doublesha(''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 20)]))
block_hash_hex = block_hash_bin[::-1].encode('hex_codec')
# 6. 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.exception(
"FINAL JOB VALIDATION FAILED!(Try enabling/disabling tx messages)"
)
# 7. Submit block to the network
serialized = binascii.hexlify(job.serialize())
on_submit = self.bitcoin_rpc.submitblock(serialized,
block_hash_hex,
scrypt_hash_hex)
if on_submit:
self.update_block()
if settings.SOLUTION_BLOCK_HASH:
return (header_hex, block_hash_hex, share_diff, on_submit)
else:
return (header_hex, scrypt_hash_hex, share_diff, on_submit)
if settings.SOLUTION_BLOCK_HASH:
# Reverse the header and get the potential block hash (for scrypt only) only do this if we want to send in the block hash to the shares table
if settings.COINDAEMON_ALGO == 'riecoin':
block_hash_bin = util.doublesha(''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 28)]))
else:
block_hash_bin = util.doublesha(''.join(
[header_bin[i * 4:i * 4 + 4][::-1] for i in range(0, 20)]))
block_hash_hex = block_hash_bin[::-1].encode('hex_codec')
return (header_hex, block_hash_hex, share_diff, None)
else:
return (header_hex, scrypt_hash_hex, share_diff, None)
def submit_share(self, job_id, worker_name, session, extranonce1_bin, extranonce2, ntime, nonce,
difficulty):
'''Check parameters and finalize block template. If it leads
to valid block candidate, asynchronously submits the block
back to the bitcoin network.
- extranonce1_bin is binary. No checks performed, it should be from session data
- job_id, extranonce2, ntime, nonce - in hex form sent by the client
- difficulty - decimal number from session, again no checks performed
- submitblock_callback - reference to method which receive result of submitblock()
'''
# 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 for job
job = self.get_job(job_id)
if job == None:
raise SubmitException("Job '%s' not found" % job_id)
# Check if ntime looks correct
if settings.COINDAEMON_ALGO == 'riecoin':
if len(ntime) != 16:
raise SubmitException("Incorrect size of ntime. Expected 16 chars")
else:
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 settings.COINDAEMON_ALGO == 'riecoin':
if len(nonce) != 64:
raise SubmitException("Incorrect size of nonce. Expected 64 chars")
else:
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")
# Now let's do the hard work!
# ---------------------------
# 0. Some sugar
extranonce2_bin = binascii.unhexlify(extranonce2)
ntime_bin = binascii.unhexlify(ntime)
nonce_bin = binascii.unhexlify(nonce)
if settings.COINDAEMON_ALGO == 'riecoin':
ntime_bin = (''.join([ ntime_bin[(1-i)*4:(1-i)*4+4] for i in range(0, 2) ]))
nonce_bin = (''.join([ nonce_bin[(7-i)*4:(7-i)*4+4] for i in range(0, 8) ]))
# 1. Build coinbase
coinbase_bin = job.serialize_coinbase(extranonce1_bin, extranonce2_bin)
coinbase_hash = util.doublesha(coinbase_bin)
# 2. Calculate merkle root
merkle_root_bin = job.merkletree.withFirst(coinbase_hash)
merkle_root_int = util.uint256_from_str(merkle_root_bin)
# 3. Serialize header with given merkle, ntime and nonce
header_bin = job.serialize_header(merkle_root_int, ntime_bin, nonce_bin)
# 4. Reverse header and compare it with target of the user
if settings.COINDAEMON_ALGO == 'scrypt':
hash_bin = ltc_scrypt.getPoWHash(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
elif settings.COINDAEMON_ALGO == 'scrypt-jane':
hash_bin = yac_scrypt.getPoWHash(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]), int(ntime, 16))
elif settings.COINDAEMON_ALGO == 'quark':
hash_bin = quark_hash.getPoWHash(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
elif settings.COINDAEMON_ALGO == 'goalcoin':
hash_bin = goalcoin_hash.getPoWHash(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
elif settings.COINDAEMON_ALGO == 'skeinhash':
hash_bin = skeinhash.skeinhash(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
else:
hash_bin = util.doublesha(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
hash_int = util.uint256_from_str(hash_bin)
scrypt_hash_hex = "%064x" % hash_int
if settings.COINDAEMON_ALGO == 'riecoin':
# this is kind of an ugly hack: we use hash_int to store the number of primes
hash_int = util.riecoinPoW( hash_int, job.target, int(nonce, 16) )
header_hex = binascii.hexlify(header_bin)
if settings.COINDAEMON_ALGO == 'scrypt' or settings.COINDAEMON_ALGO == 'scrypt-jane':
header_hex = header_hex+"000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"
elif settings.COINDAEMON_ALGO == 'quark':
header_hex = header_hex+"000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"
elif settings.COINDAEMON_ALGO == 'goalcoin':
header_hex = header_hex+"000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"
elif settings.COINDAEMON_ALGO == 'riecoin':
header_hex = header_hex+"00000080000000000000000080030000"
else: pass
target_user = self.diff_to_target(difficulty)
if settings.COINDAEMON_ALGO == 'riecoin':
if hash_int < target_user:
raise SubmitException("Share does not meet target")
else:
if hash_int > target_user:
raise SubmitException("Share is above target")
# Mostly for debugging purposes
target_info = self.diff_to_target(100000)
if hash_int <= target_info:
log.info("Yay, share with diff above 100000")
# Algebra tells us the diff_to_target is the same as hash_to_diff
share_diff = int(self.diff_to_target(hash_int))
# 5. Compare hash with target of the network
isBlockCandidate = False
if settings.COINDAEMON_ALGO == 'riecoin':
if hash_int == 6:
isBlockCandidate = True
else:
if hash_int <= job.target:
isBlockCandidate = True
if isBlockCandidate == True:
# Yay! It is block candidate!
log.info("We found a block candidate! %s" % scrypt_hash_hex)
# Reverse the header and get the potential block hash (for scrypt only)
if settings.COINDAEMON_ALGO == 'riecoin':
block_hash_bin = util.doublesha(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 28) ]))
else:
block_hash_bin = util.doublesha(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
block_hash_hex = block_hash_bin[::-1].encode('hex_codec')
# 6. 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.exception("FINAL JOB VALIDATION FAILED!(Try enabling/disabling tx messages)")
# 7. Submit block to the network
serialized = binascii.hexlify(job.serialize())
on_submit = self.bitcoin_rpc.submitblock(serialized, block_hash_hex, scrypt_hash_hex)
if on_submit:
self.update_block()
if settings.SOLUTION_BLOCK_HASH:
return (header_hex, block_hash_hex, share_diff, on_submit)
else:
return (header_hex, scrypt_hash_hex, share_diff, on_submit)
if settings.SOLUTION_BLOCK_HASH:
# Reverse the header and get the potential block hash (for scrypt only) only do this if we want to send in the block hash to the shares table
if settings.COINDAEMON_ALGO == 'riecoin':
block_hash_bin = util.doublesha(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 28) ]))
else:
block_hash_bin = util.doublesha(''.join([ header_bin[i*4:i*4+4][::-1] for i in range(0, 20) ]))
block_hash_hex = block_hash_bin[::-1].encode('hex_codec')
return (header_hex, block_hash_hex, share_diff, None)
else:
return (header_hex, scrypt_hash_hex, share_diff, None)