def from_serialized(cls, serialized_tx, testnet=False):
tx = CMutableTransaction.stream_deserialize(BytesIO(serialized_tx))
return BitcoinTransaction(tx, testnet)
def from_serialized(cls, serialized_tx, testnet=False):
tx = CMutableTransaction.stream_deserialize(BytesIO(serialized_tx))
return BitcoinTransaction(tx, testnet)
def parse_tx(hex_tx):
# NB: The deserialize function reads from a stream.
raw_tx = BytesIO(binascii.unhexlify(hex_tx))
tx = CMutableTransaction.stream_deserialize(raw_tx)
return tx
def confirm_bitcoin_tx_local(self, hash, sender_gid):
"""
Confirm bitcoin transaction using local bitcoind instance
Usage: confirm_bitcoin_tx tx_id gid
"""
## send transaction to local bitcond
segments = self.segment_storage.get_by_transaction_id(hash)
raw_tx = self.segment_storage.get_raw_tx(segments)
## pass hex string converted to bytes
try :
proxy1 = bitcoin.rpc.Proxy()
raw_tx_bytes = x(raw_tx)
tx = CMutableTransaction.stream_deserialize(BytesIO(raw_tx_bytes))
r1 = proxy1.sendrawtransaction(tx)
except :
print("Invalid Transaction! Could not send to network.")
return
## try for 30 minutes to confirm the transaction
for n in range(0, 30) :
try :
proxy2 = bitcoin.rpc.Proxy()
r2 = proxy2.getrawtransaction(r1, True)
## send zero-conf message back to tx sender
confirmations = r2.get('confirmations', 0)
rObj = TxTennaSegment('', '', tx_hash=hash, block=confirmations)
arg = str(sender_gid) + ' ' + rObj.serialize_to_json()
self.do_send_private(arg)
print("\nSent to GID: " + str(sender_gid) + ": Transaction " + hash + " added to the mempool.")
break
except IndexError:
## tx_id not yet in the global mempool, sleep for a minute and then try again
sleep(60)
continue
## wait for atleast one confirmation
for m in range(0, 30):
sleep(60) # sleep for a minute
try :
proxy3= bitcoin.rpc.Proxy()
r3 = proxy3.getrawtransaction(r1, True)
confirmations = r3.get('confirmations', 0)
## keep waiting until 1 or more confirmations
if confirmations > 0:
break
except :
## unknown RPC error, but keep trying
traceback.print_exc()
if confirmations > 0 :
## send confirmations message back to tx sender if confirmations > 0
rObj = TxTennaSegment('', '', tx_hash=hash, block=confirmations)
arg = str(sender_gid) + ' ' + rObj.serialize_to_json()
self.do_send_private(arg)
print("\nSent to GID: " + str(sender_gid) + ", Transaction " + hash + " confirmed in " + str(confirmations) + " blocks.")
else :
print("\CTransaction from GID: " + str(sender_gid) + ", Transaction " + hash + " not confirmed after 30 minutes.")
