def do_deserialize(self, line):
try:
if len(line) < 50:
print("Too short tx")
return False
tx = Transaction(False, False)
tx.set_signed_raw_tx(line)
print(tx.deserialize_raw_tx())
except BadTransactionFormat:
print("Cannot deserialize transation")
return False
def get_transaction():
sql_select_Query = """select * from transactions"""
rows = Connection.Mysql.exec_query(sql_select_Query)
list_of_unknown = []
for row in rows:
list_of_unknown.append(Transaction.transactionToJson(row))
return jsonify(list_of_unknown)
def main():
blockchain = []
genesis_hash = 0
genesis_transactions = [Transaction('don', 'don', 0)]
genesis_block = Block(
genesis_hash,
genesis_transactions
)
blockchain.append(genesis_block)
block = Block(
blockchain[len(blockchain)-1]._id,
[Transaction('don', 'don', 1)]
)
blockchain.append(block)
block = Block(
blockchain[len(blockchain)-1]._id,
[Transaction('don', 'don', 2),
Transaction('don', 'hazel', 3)]
)
blockchain.append(block)
[print(block._id) for block in blockchain]
def do_send(self, line):
try:
sender_private = PRIVATE_KEYS[-1]
lines = str(line).split(']}') # TODO: better split
if len(lines) != 3 or len(lines[2]) > 1 :
raise WrongLineArgs
tx = Transaction(lines[0] + ']}', lines[1] + ']}')
tx.get_presign_raw_format()
tx.calculate_hash()
sender_pub_key = wallet_utils.getPublickKey(sender_private)
sender_compressed_pub_key = wallet_utils.compressPublicKey(sender_pub_key)
tx.sign_tx(sender_private)
ser_tx = tx.get_signed_raw_format(sender_compressed_pub_key).hex()
TRANSACTIONS.append(ser_tx)
print("Your serialized transaction:", ser_tx)
except WrongLineArgs:
self.help_send()
return False
except BadTransactionFormat:
print("Cannot create transaction")
return False
except IndexError:
print("Generate or import private key first")
return False
def do_random(self, line):
private_key, public_key, address = wallet_utils.newKeyPair()
i = 0
if len(line) == 0:
line = "200"
while i < int(line):
amount = randrange(0, 65535)
private_key2, public_key2, address2 = wallet_utils.newKeyPair()
PRIVATE_KEYS.append(private_key)
pitoshi = "{0:0{1}x}".format(amount, 4)
tx = Transaction(address, address2,
bytes(pitoshi.encode('utf-8')).decode('utf-8'))
tx.calculate_hash()
signature, verify_key = wallet_utils.signMessage(private_key, tx.get_hash())
tx.set_sign(signature, verify_key)
secs = randint(0, 3)
time.sleep(secs)
ser_tx = Serializer(tx).get_serialized_tx()
TRANSACTIONS.append(ser_tx)
self.do_broadcast(line)
i += 1
company.stock - quantity
stockBroker.capital -= transaction
companyExists = False
for sbq in stockBroker.quotes:
if (sbq.company.id == company.id):
companyExists = True
sbq.quantity += quantity
if not companyExists:
stockBroker.quotes.append(
StockBrokerQuotes(company, quantity))
stockBroker.transactions.append(
Transaction(
company, stockBroker, "Buy", company.quote,
quantity,
strftime("%Y-%m-%d %H:%M:%S", gmtime())))
data = "Successful transaction. %s stock exchange(s) purchased from %s." % (
quantity, company.name)
else:
data = "Transaction canceled. There's not enough capital for the purchase."
else:
data = "Transaction canceled. There are not enough stock to complete the purchase."
connection.sendall(data)
elif serverCode == ServerCodes.Sell:
fields = data.split(';')
companyId = int(fields[1])
quantity = int(fields[2])
stockBrokerId = int(fields[3])
company = companies[companyId]
def updateStockBroker(sock, stockBroker):
# try:
request = '%s;%s' % (ServerCodes.UpdateStockBroker, stockBroker.id)
sock.sendall(request)
data = sock.recv(SOCKET_DATA_SIZE)
fields = data.split(';')
stockBroker.id = fields[0]
stockBroker.name = fields[1]
stockBroker.capital = fields[2]
request = '%s;%s' % (ServerCodes.GetStockBrokerQuotes, stockBroker.id)
sock.sendall(request)
data = sock.recv(SOCKET_DATA_SIZE)
if not data == " ":
fields = data.split(';')
stockBroker.quotes = []
for sb in fields:
sbQuote = sb.split(',')
companyId = sbQuote[0]
quantity = int(sbQuote[1])
request = '%s;%s' % (ServerCodes.GetCompany, companyId)
sock.sendall(request)
data = sock.recv(SOCKET_DATA_SIZE)
companyFields = data.split(';')
stockBroker.quotes.append(
StockBrokerQuotes(
Company(int(companyFields[0]),
companyFields[1], companyFields[2],
int(companyFields[3]), int(companyFields[4]),
int(companyFields[5])), quantity))
request = '%s;%s' % (ServerCodes.GetStockBrokerTransactions,
stockBroker.id)
sock.sendall(request)
data = sock.recv(SOCKET_DATA_SIZE)
if not data == " ":
fields = data.split(';')
stockBroker.transactions = []
for t in fields:
transactionFields = t.split(',')
companyId = transactionFields[0]
action = transactionFields[1]
value = int(transactionFields[2])
quantity = int(transactionFields[3])
date = transactionFields[4]
request = '%s;%s' % (ServerCodes.GetCompany, companyId)
sock.sendall(request)
data = sock.recv(SOCKET_DATA_SIZE)
companyFields = data.split(';')
stockBroker.transactions.append(
Transaction(
Company(int(companyFields[0]),
companyFields[1], companyFields[2],
int(companyFields[3]), int(companyFields[4]),
int(companyFields[5])), stockBroker, action, value,
quantity, date))
return stockBroker
def get_session(id_num):
if Connection.Mysql.isHealth() == True:
return Transaction.get_session(id_num)
return "Error: DB Connection"