def new_transaction(client, payload):
transaction = json.loads(payload)
transaction = Transaction.create_object(transaction)
blockchain.add_transaction(transaction)
count = 0
mine_count = 0
for tx in blockchain.get_open_transactions():
if tx.sender != SUN.PUBLIC_KEY:
count += 1
else:
mine_count += 1
if count >= 3 or mine_count >= 10:
node_id, proof = blockchain.proof_of_stake()
if node_id == blockchain.public_key:
mined_block = blockchain.mine_block()
signature = wallet.sign_block(mined_block)
mined_block.add_signature(signature)
mined_block.transactions = [
tx.__dict__ for tx in mined_block.transactions
]
mined_block = mined_block.__dict__
client.publish("new_block", json.dumps(mined_block), qos=2)
if count >= 5 or mine_count >= 15:
proof += 10
helper_trans = Transaction(SUN.PUBLIC_KEY, SUN.PUBLIC_KEY, proof,
"MINING FIX")
signature = wallet.sign_transaction(helper_trans)
helper_trans.add_signature(signature)
client.publish("new_transaction", json.dumps(helper_trans), qos=2)
def sign_transaction():
requested_object = request.get_json()
wall = requested_object['wallet']
wallet_id = wall['wallet_id']
private_key = wall['private_key']
public_key = wall['public_key']
wallet = Wallet(wallet_id, private_key, public_key)
trans = requested_object['transaction']
sender = trans['sender']
recipient = trans['recipient']
amount = trans['amount']
description = trans['description']
transaction = Transaction(sender, recipient, amount, description)
signature = wallet.sign_transaction(transaction)
transaction.add_signature(signature)
response = transaction.__dict__
return jsonify(response), 200
client.on_connect = on_connect
#client.on_message = on_message
#client.on_disconnect = on_disconnect
client.connect(MQTT.SERVER, int(MQTT.SSL_PORT))
# client.loop_forever()
def on_connect(client, userdata, flags, rc):
client.publish("new_transaction", )
t2 = Transaction(SUN.PUBLIC_KEY, wallet1.public_key, 50)
t1 = Transaction(wallet1.public_key, wallet2.public_key, 20, "Ceva")
signature = wallet1.sign_transaction(t1)
t1.add_signature(signature)
t1 = Transaction("Eu", "tu", 200)
t2 = Transaction("El", "ea", 100)
t3 = Transaction("EU", "mie", 50)
b1 = Block(1, "eu", 100, [t1, t2], 'ceva')
b2 = Block(1, "EU", 50, [t3], 'cevass')
chain = [b1, b2]
# # print(json.dumps(b1.__dict__))
# [block.__dict__ for block in chain]
# block.transactions = [tx.__dict__ for tx in block.transactions] for block
# b1.transactions = [tx.__dict__ for tx in b1.transactions]
# print(json.dumps(b1.__dict__))
new_chain = []
