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comparison src/puppy/block.py @ 9:e218f70e19e9

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refactor code
author Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
date Sun, 24 Oct 2021 21:00:49 +0200
parents 4d259e84160d
children 6e9f420c117e
comparison
equal deleted inserted replaced
8:4d259e84160d 9:e218f70e19e9
14 :return: dict 14 :return: dict
15 """ 15 """
16 16
17 block = Block() 17 block = Block()
18 block.magic_number = f.read(4).hex() 18 block.magic_number = f.read(4).hex()
19 block.block_size = f.read(4)[::-1].hex() 19 block.size = f.read(4)[::-1].hex()
20 block_header, block.block_hash = deserialize_header(f) 20 block_header, block.id = deserialize_header(f)
21 block.number_of_transactions = get_var_int(f) 21 block.transaction_count = get_var_int(f)
22 22
23 transactions = [] 23 transactions = []
24 for transaction_number in range(int(block.number_of_transactions, 16)): 24 for transaction_number in range(int(block.transaction_count, 16)):
25 transactions.append(deserialize_transaction_data(f, block.block_size)) 25 transactions.append(deserialize_transaction_data(f))
26 26
27 block_dict = block.__dict__ 27 block_dict = block.__dict__
28 block_dict['header'] = block_header 28 block_dict['header'] = block_header
29 block_dict['transactions'] = transactions 29 block_dict['transactions'] = transactions
30 30
45 block_hash = compute_hash(header) 45 block_hash = compute_hash(header)
46 f.seek(before) 46 f.seek(before)
47 47
48 header = Header() 48 header = Header()
49 header.version = f.read(4)[::-1].hex() 49 header.version = f.read(4)[::-1].hex()
50 header.previous_block_hash = f.read(32)[::-1].hex() 50 header.previous_block_id = f.read(32)[::-1].hex()
51 header.merkle_root = f.read(32)[::-1].hex() 51 header.merkle_root = f.read(32)[::-1].hex()
52 header.time = f.read(4)[::-1].hex() 52 header.time = f.read(4)[::-1].hex()
53 header.bits = f.read(4)[::-1].hex() 53 header.bits = f.read(4)[::-1].hex()
54 header.nonce = f.read(4)[::-1].hex() 54 header.nonce = f.read(4)[::-1].hex()
55 55
56 return header.__dict__, block_hash 56 return header.__dict__, block_hash
57 57
58 58
59 def deserialize_transaction_data(f, block_size): 59 def deserialize_transaction_data(f):
60 """ 60 """
61 Deserialize transaction data 61 Deserialize transaction data
62 More info: https://learnmeabitcoin.com/technical/transaction-data 62 More info: https://learnmeabitcoin.com/technical/transaction-data
63 :param f: buffer, required 63 :param f: buffer, required
64 :param block_size: string, required
65 :return: dict 64 :return: dict
66 """ 65 """
67 66
67 transaction = Transaction()
68 start_transaction_data = f.tell() 68 start_transaction_data = f.tell()
69
70 transaction = Transaction()
71 transaction.version = f.read(4)[::-1].hex() 69 transaction.version = f.read(4)[::-1].hex()
72 transaction.number_of_inputs = get_var_int(f) 70 transaction.input_count = get_var_int(f)
73 71
74 transaction_inputs = [] 72 transaction_inputs = []
75 for input_number in range(int(transaction.number_of_inputs, 16)): 73 for input_number in range(int(transaction.input_count, 16)):
76 transaction_input = TransactionInput() 74 transaction_input = TransactionInput()
77 transaction_input.id = f.read(32)[::-1].hex() 75 transaction_input.id = f.read(32)[::-1].hex()
78 transaction_input.vout = f.read(4)[::-1].hex() 76 transaction_input.vout = f.read(4)[::-1].hex()
79 transaction_input.script_sig_size = get_var_int(f) 77 transaction_input.script_sig_size = get_var_int(f)
80 transaction_input.script_sig = f.read(int(transaction_input.script_sig_size, 16)).hex() 78 transaction_input.script_sig = f.read(int(transaction_input.script_sig_size, 16)).hex()
81 transaction_input.sequence = f.read(4)[::-1].hex() 79 transaction_input.sequence = f.read(4)[::-1].hex()
82 transaction_inputs.append(transaction_input.__dict__) 80 transaction_inputs.append(transaction_input.__dict__)
83 81
84 transaction.number_of_outputs = get_var_int(f) 82 transaction.output_count = get_var_int(f)
85 83
86 transaction_outputs = [] 84 transaction_outputs = []
87 for output_number in range(int(transaction.number_of_outputs, 16)): 85 for output_number in range(int(transaction.output_count, 16)):
88 transaction_output = TransactionOutput() 86 transaction_output = TransactionOutput()
89 transaction_output.value = f.read(8)[::-1].hex() 87 transaction_output.value = f.read(8)[::-1].hex()
90 transaction_output.script_pub_key_size = get_var_int(f) 88 transaction_output.script_pub_key_size = get_var_int(f)
91 transaction_output.script_pub_key = f.read(int(transaction_output.script_pub_key_size, 16)).hex() 89 transaction_output.script_pub_key = f.read(int(transaction_output.script_pub_key_size, 16)).hex()
92 transaction_outputs.append(transaction_output.__dict__) 90 transaction_outputs.append(transaction_output.__dict__)