def getRequiredTxnsForAmount(self, addresses: list, amount: float):
remaining_amount = amount
it = self.ldb.getIteratorChainstateDB()
required_hash_b_list = [
pubkey_address.address2hash(address) for address in addresses
]
ret_dict = []
while remaining_amount > 0:
try:
key = next(it)
except StopIteration:
break
prefix = key[0:1]
if prefix == b'C':
out_index, pos = leveldb_class.b128_varint_decode(key[33:])
txn_hash_big_endian_b = key[1:33]
txn_hash_little_endian = bytes.decode(
binascii.hexlify(key[1:33][::-1]))
jsonobj = self.ldb.getChainstateData(txn_hash_big_endian_b,
out_index)
hash_b = getHashFromScript(jsonobj['script'])
print('script = %s' %
bytes.decode(binascii.hexlify(jsonobj['script'])))
# coinbase transaction can be redeemed only after 100th confirmation
if (hash_b in required_hash_b_list and jsonobj['is_coinbase']
== False) or (hash_b in required_hash_b_list
and jsonobj['is_coinbase'] == True
and block_depth >= 100):
address = pubkey_address.pkh2address(hash_b, self.nettype)
value = jsonobj['amount']
print(
'txn_id = %s, out_index = %s, height = %d, hash = %s, address = %s, value = %d'
%
(txn_hash_little_endian, out_index, jsonobj['height'],
bytes.decode(
binascii.hexlify(hash_b)), address, value))
txn_info = {}
txn_info['txn_id'] = txn_hash_little_endian
txn_info['out_index'] = out_index
txn_info['height'] = block_height
txn_info['hash'] = bytes.decode(binascii.hexlify(hash_b))
txn_info['address'] = address
txn_info['value'] = value
ret_dict.append(txn_info)
remaining_amount = remaining_amount - (value / 100000000)
return ret_dict
def getRequiredTxnsForAmountInP2WSH(self, addresses: list, amount: float):
remaining_amount = amount
it = self.ldb.getIteratorChainstateDB()
required_sha256_b_list = [
pubkey_address.address2hash(address) for address in addresses
]
for required_sha256 in required_sha256_b_list:
print('YYYYYY required_sha256 = %s' %
(bytes.decode(binascii.hexlify(required_sha256))))
ret_dict = []
while remaining_amount > 0:
try:
key = next(it)
except StopIteration:
break
prefix = key[0:1]
if prefix == b'C':
out_index, pos = leveldb_class.b128_varint_decode(key[33:])
txn_hash_big_endian_b = key[1:33]
txn_hash_little_endian = bytes.decode(
binascii.hexlify(key[1:33][::-1]))
jsonobj = self.ldb.getChainstateData(txn_hash_big_endian_b,
out_index)
if jsonobj['script_type'] == 40:
size_hash = int(binascii.hexlify(jsonobj['script'][1:2]),
16)
if len(jsonobj['script']) == size_hash + 2:
sha256_b = jsonobj['script'][2:2 + size_hash]
recent_block_hash = self.ldb.getRecentBlockHash()
recent_block_height = self.ldb.getBlockIndex(
recent_block_hash)['height']
block_height = jsonobj['height']
block_depth = recent_block_height - block_height
print('block depth = %d' % block_depth)
# coinbase transaction can be redeemed only after 100th confirmation
if (sha256_b in required_sha256_b_list
and jsonobj['is_coinbase'] == False) or (
sha256_b in required_sha256_b_list
and jsonobj['is_coinbase'] == True
and block_depth >= 100):
witver = 0x00
#hrp = 'bc'
hrp = 'bcrt'
address = pubkey_address.witnessProgram2address(
hrp, witver, sha256_b)
value = jsonobj['amount']
print(
'txn_id = %s, out_index = %s, height = %d, sha256 = %s, address = %s, value = %d'
% (txn_hash_little_endian, out_index,
jsonobj['height'],
bytes.decode(binascii.hexlify(sha256_b)),
address, value))
txn_info = {}
txn_info['txn_id'] = txn_hash_little_endian
txn_info['out_index'] = out_index
txn_info['height'] = block_height
txn_info['sha256'] = bytes.decode(
binascii.hexlify(sha256_b))
txn_info['address'] = address
txn_info['value'] = value
ret_dict.append(txn_info)
remaining_amount = remaining_amount - (value /
100000000)
return ret_dict
def getRequiredTxnsForAmountInP2SH(self, addresses: list, amount: float):
remaining_amount = amount
#it = chainstate_db.iterator(include_value=False)
it = self.ldb.getIteratorChainstateDB()
required_hash160_b_list = [
pubkey_address.address2hash(address) for address in addresses
]
for required_h160 in required_hash160_b_list:
print('IIIIIII required_h160 = %s' %
(bytes.decode(binascii.hexlify(required_h160))))
ret_dict = []
while remaining_amount > 0:
try:
key = next(it)
except StopIteration:
break
prefix = key[0:1]
if prefix == b'C':
out_index, pos = leveldb_class.b128_varint_decode(key[33:])
txn_hash_big_endian_b = key[1:33]
txn_hash_little_endian = bytes.decode(
binascii.hexlify(key[1:33][::-1]))
jsonobj = self.ldb.getChainstateData(txn_hash_big_endian_b,
out_index)
if jsonobj['script_type'] == 1:
size_hash = int(binascii.hexlify(jsonobj['script'][1:2]),
16)
hash160_b = jsonobj['script'][2:2 + size_hash]
print('IIIIIIIIIII hash160 = %s' %
bytes.decode(binascii.hexlify(hash160_b)))
recent_block_hash = self.ldb.getRecentBlockHash()
recent_block_height = self.ldb.getBlockIndex(
recent_block_hash)['height']
block_height = jsonobj['height']
block_depth = recent_block_height - block_height
print('block depth = %d' % block_depth)
# coinbase transaction can be redeemed only after 100th confirmation
if (hash160_b in required_hash160_b_list
and jsonobj['is_coinbase']
== False) or (hash160_b in required_hash160_b_list
and jsonobj['is_coinbase'] == True
and block_depth >= 100):
address = pubkey_address.sh2address(
hash160_b, self.nettype)
value = jsonobj['amount']
print(
'txn_id = %s, out_index = %s, height = %d, hash160 = %s, address = %s, value = %d'
% (txn_hash_little_endian, out_index,
jsonobj['height'],
bytes.decode(binascii.hexlify(hash160_b)),
address, value))
txn_info = {}
txn_info['txn_id'] = txn_hash_little_endian
txn_info['out_index'] = out_index
txn_info['height'] = block_height
txn_info['hash160'] = bytes.decode(
binascii.hexlify(hash160_b))
txn_info['address'] = address
txn_info['value'] = value
ret_dict.append(txn_info)
remaining_amount = remaining_amount - (value /
100000000)
return ret_dict