def main(txids,
options=['PRECHECK', 'LINKABILITY', 'MERGE_INPUTS'],
max_duration=600,
max_txos=12,
max_cj_intrafees_ratio=0):
'''
Main function
Parameters:
txids = list of transactions txids to be processed
options = options to be applied during processing
max_duration = max duration allocated to processing of a single tx (in seconds)
max_txos = max number of txos. Txs with more than max_txos inputs or outputs are not processed.
max_cj_intrafees_ratio = max intrafees paid by the taker of a coinjoined transaction.
Expressed as a percentage of the coinjoined amount.
'''
# Initializes the wrapper for bci api
bci_wrapper = BlockchainInfoWrapper()
for txid in txids:
print('\n\n--- %s -------------------------------------' % txid)
# Retrieves the tx from bci
try:
tx = bci_wrapper.get_tx(txid)
except:
print('Unable to retrieve information for %s from bc.i' % txid)
continue
# Computes the entropy of the tx and the linkability of txos
(mat_lnk, nb_cmbn, inputs, outputs, fees,
intrafees) = process_tx(tx, options, max_duration, max_txos,
max_cj_intrafees_ratio)
# Displays the results
display_results(mat_lnk, nb_cmbn, inputs, outputs, fees, intrafees)
def main(txids,
rpc,
testnet,
smartbit,
options=['PRECHECK', 'LINKABILITY', 'MERGE_INPUTS'],
max_duration=600,
max_txos=12,
max_cj_intrafees_ratio=0):
'''
Main function
Parameters:
txids = list of transactions txids to be processed
rpc = use bitcoind's RPC interface (or blockchain.info web API)
testnet = use testnet (blockchain.info by default)
smartbit = use smartbit data provider
options = options to be applied during processing
max_duration = max duration allocated to processing of a single tx (in seconds)
max_txos = max number of txos. Txs with more than max_txos inputs or outputs are not processed.
max_cj_intrafees_ratio = max intrafees paid by the taker of a coinjoined transaction.
Expressed as a percentage of the coinjoined amount.
'''
blockchain_provider = None
provider_descriptor = ''
if rpc:
blockchain_provider = BitcoindRPCWrapper()
provider_descriptor = 'local RPC interface'
else:
if smartbit == True:
blockchain_provider = SmartbitWrapper()
provider_descriptor = 'remote Smartbit API'
else:
blockchain_provider = BlockchainInfoWrapper()
provider_descriptor = 'remote blockchain.info API'
print("DEBUG: Using %s" % provider_descriptor)
for txid in txids:
print('\n\n--- %s -------------------------------------' % txid)
# retrieves the tx from local RPC or external data provider
try:
if rpc:
tx = blockchain_provider.get_tx(txid)
else:
tx = blockchain_provider.get_tx(txid, testnet)
print("DEBUG: Tx fetched: {0}".format(str(tx)))
except Exception as err:
print('Unable to retrieve information for %s from %s: %s %s' %
(txid, provider_descriptor, err, traceback.format_exc()))
continue
# Computes the entropy of the tx and the linkability of txos
(mat_lnk, nb_cmbn, inputs, outputs, fees, intrafees,
efficiency) = process_tx(tx, options, max_duration, max_txos,
max_cj_intrafees_ratio)
# Displays the results
display_results(mat_lnk, nb_cmbn, inputs, outputs, fees, intrafees,
efficiency)