def post(self):
args = self.reqparse.parse_args()
# analyze transaction
try:
analysis = hodl_api.analyze_tx(args['rawtx'])
except Exception as e:
error_msg = "couldn't analyze this transaction"
return({'error': error_msg, 'exception': str(e)})
# check if it complies with minimum allowed locked amount
if analysis['lockedSatoshis'] < MIN_AMOUNT_SAT:
error_msg = 'minimum amount is ' + str(MIN_AMOUNT)
return({'error': error_msg})
elif analysis['lockedSatoshis'] > MAX_AMOUNT_SAT:
error_msg = 'maximum amount is ' + str(MAX_AMOUNT)
return({'error': error_msg})
# check if tx is not trying to get rewards for less than
# the minimum allowed vesting period, or more than maximum
nLockTime = analysis['nLockTime']
now = int(time.time())
min_unlock_time = now + MIN_VEST_TIME_SEC
max_unlock_time = now + MAX_VEST_TIME_SEC
if nLockTime < (min_unlock_time - TOLERANCE_SEC):
error_msg = 'Code expired or vesting period is too short.'
return({'error': error_msg})
elif nLockTime > (max_unlock_time + MAX_VEST_TIME_SEC):
error_msg = "You're hodling yourself out of existence!"
return({'error': error_msg})
elif nLockTime > (max_unlock_time + TOLERANCE_SEC):
error_msg = 'Vesting period too long.'
return({'error': error_msg})
else:
try:
tx_broadcast_output = hodl_api.tx_broadcast(args['rawtx'])
if 'error' in tx_broadcast_output:
raise Exception("something wrong!")
except Exception as e:
print(e)
error_msg = ("There was a problem " +
"broadcasting this transaction.")
return({'error': error_msg})
else:
try:
payee_data = {}
payee_data['hodlFundTxId'] = tx_broadcast_output['txid']
payee_data['payeeAddress'] = analysis['hodlAddress']
payee_data['reward'] = int(
analysis['lockedSatoshis'] *
REWARD_RATIO(nLockTime - now))
to_queue(payee_data, 'transactions')
except Exception as e:
print(e)
error_msg = ("There was a problem " +
"scheduling reward payment, please report.")
return({'error': error_msg})
return(tx_broadcast_output)
def requeue_txs():
q = 'unconfirmed'
output = False
method, header, body = channel.basic_get(queue=q)
if body is not None:
output = True
msg_json = json.loads(body.decode())
txid = msg_json['hodlFundTxId']
print("Re-queuing " + txid + " for check out.")
to_queue(msg_json, 'transactions')
channel.basic_ack(delivery_tag=method.delivery_tag)
return (output)
def filter_txs():
q = 'transactions'
output = False
method, header, body = channel.basic_get(queue=q)
if body is not None:
output = True
msg_json = json.loads(body.decode())
txid = msg_json['hodlFundTxId']
addr = msg_json['payeeAddress']
try:
confirmed = is_confirmed(addr, txid)
if confirmed is True:
print("Moving transaction " + txid + ' to "confirmed" queue.')
to_queue(msg_json, 'confirmed')
else:
print(txid + " still unconfirmed.")
to_queue(msg_json, 'unconfirmed')
channel.basic_ack(delivery_tag=method.delivery_tag)
except Exception as e:
raise Exception(e)
return (output)