def test_06_transaction_with_relation_and_witness(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
transaction1 = bbclib.make_transaction(relation_num=1, witness=True)
bbclib.add_relation_asset(transaction1,
relation_idx=0,
asset_group_id=asset_group_id,
user_id=user_id,
asset_body=b'ccccc')
bbclib.add_relation_pointer(transaction1,
0,
ref_transaction_id=transaction2.digest())
transaction1.witness.add_witness(user_id)
transaction1.witness.add_witness(user_id2)
sig = transaction1.sign(private_key=keypair2.private_key,
public_key=keypair2.public_key)
if sig is None:
print(bbclib.error_text)
assert sig
transaction1.witness.add_signature(user_id=user_id2, signature=sig)
sig = transaction1.sign(private_key=keypair1.private_key,
public_key=keypair1.public_key)
if sig is None:
print(bbclib.error_text)
assert sig
transaction1.witness.add_signature(user_id=user_id, signature=sig)
print(transaction1)
def test_03_transaction_insert(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
global transaction
print("-- insert transaction only at core_node_1 --")
user1 = clients[1]['user_id']
transaction = bbclib.make_transaction(event_num=2, witness=True)
transaction.events[0].add(mandatory_approver=clients[1]['user_id'])
bbclib.add_event_asset(transaction,
event_idx=0,
asset_group_id=asset_group_id,
user_id=user1,
asset_body=b'123456')
bbclib.add_event_asset(transaction,
event_idx=1,
asset_group_id=asset_group_id,
user_id=user1,
asset_file=b'abcdefg')
transaction.witness.add_witness(user_id=user1)
sig = transaction.sign(keypair=clients[1]['keypair'])
transaction.witness.add_signature(user_id=user1, signature=sig)
transaction.digest()
print(transaction)
print("register transaction=",
binascii.b2a_hex(transaction.transaction_id))
asset_file = dict()
asset_file[transaction.events[1].asset.
asset_id] = transaction.events[1].asset.asset_file
ret = cores[1].insert_transaction(domain_id, transaction.serialize(),
asset_file)
assert ret[KeyType.transaction_id] == transaction.transaction_id
def test_13_gather_signature(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
prev_tx = transactions[0]
user = clients[1]['user_id']
transactions[1] = bbclib.make_transaction(event_num=1)
bbclib.add_event_asset(transactions[1],
event_idx=0,
asset_group_id=asset_group_id,
user_id=user,
asset_body=b'123456')
reference = bbclib.add_reference_to_transaction(
transactions[1], asset_group_id, prev_tx, 0)
clients[1]['app'].gather_signatures(transactions[1],
reference_obj=reference)
dat = msg_processor[1].synchronize()
assert dat[KeyType.status] == ESUCCESS
result = dat[KeyType.result]
transactions[1].references[result[0]].add_signature(
user_id=result[1], signature=result[2])
print(transactions[1])
transactions[1].digest()
print("register transaction=",
binascii.b2a_hex(transactions[1].transaction_id))
clients[1]['app'].insert_transaction(transactions[1])
dat = msg_processor[1].synchronize()
assert KeyType.transaction_id in dat
assert dat[KeyType.transaction_id] == transactions[1].transaction_id
def test_23_make_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
for i, cl in enumerate(clients):
print("---- start transaction at node %d---" % i)
user = cl['user_id']
other_user = (i + 1) % client_num
transactions[i] = bbclib.make_transaction(event_num=1,
witness=True)
transactions[i].events[0].add(
mandatory_approver=clients[other_user]['user_id'])
bbclib.add_event_asset(transactions[i],
event_idx=0,
asset_group_id=asset_group_id,
user_id=user,
asset_body="data=%d" % i)
transactions[i].witness.add_witness(user_id=cl['user_id'])
sig = transactions[i].sign(keypair=cl['keypair'])
transactions[i].witness.add_signature(user_id=cl['user_id'],
signature=sig)
transactions[i].digest()
print("insert_transaction=",
binascii.b2a_hex(transactions[i].transaction_id))
cl['app'].insert_transaction(transactions[i])
print(" ----> wait for notification")
for j in range(client_num):
check_insert_response(j, transactions[i].transaction_id)
if i == j:
check_insert_response(j, transactions[i].transaction_id)
def test_05_1__search_transaction_by_txid_other_node_not_found(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
print("-- insert transaction only at core_node_2 --")
global transaction
user1 = clients[2]['user_id']
transaction = bbclib.make_transaction(event_num=2, witness=True)
bbclib.add_event_asset(transaction, event_idx=0, asset_group_id=asset_group_id,
user_id=user1, asset_body=b'aaddbbdd')
bbclib.add_event_asset(transaction, event_idx=1, asset_group_id=asset_group_id,
user_id=user1, asset_file=b'112423')
for i, user in enumerate(clients):
transaction.witness.add_witness(user_id=clients[i]['user_id'])
for i, user in enumerate(clients):
sig = transaction.sign(keypair=clients[i]['keypair'])
transaction.witness.add_signature(user_id=clients[i]['user_id'], signature=sig)
transaction.digest()
print(transaction)
print("register transaction=", binascii.b2a_hex(transaction.transaction_id))
asset_file = dict()
asset_file[transaction.events[1].asset.asset_id] = transaction.events[1].asset.asset_file
ret = cores[2].insert_transaction(domain_id, bbclib.serialize(transaction), asset_file)
assert KeyType.transaction_id in ret
assert ret[KeyType.transaction_id] == transaction.transaction_id
# -- search the transaction at core_node_0
ret = cores[0]._search_transaction_by_txid(domain_id, transaction.transaction_id)
print(ret)
assert ret is None
def create_transaction_object_and_send_sign_req(idx, receiver_user_id, ref_txids=None, file_data=None):
if ref_txids is None or ref_txids[0] is None:
ref_txids = []
txobj = bbclib.make_transaction(relation_num=1, witness=True)
bbclib.add_relation_asset(txobj, relation_idx=0, asset_group_id=asset_group_id,
user_id=receiver_user_id, asset_body="transferred", asset_file=file_data)
txobj.witness.add_witness(user_ids[idx])
txobj.witness.add_witness(receiver_user_id)
for i, ref_txid in enumerate(ref_txids):
clients[idx].search_transaction(ref_txid)
response_data = clients[idx].callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
prev_tx, fmt_type = bbclib.deserialize(response_data[KeyType.transaction_data])
bbclib.add_relation_pointer(txobj, 0, ref_transaction_id=prev_tx.digest())
sig_mine = txobj.sign(private_key=keypairs[idx].private_key, public_key=keypairs[idx].public_key)
txobj.witness.add_signature_object(user_id=user_ids[idx], signature=sig_mine)
asset_id = txobj.relations[0].asset.asset_id
asset_files = {asset_id: file_data}
ret = clients[idx].gather_signatures(txobj, destinations=[receiver_user_id], asset_files=asset_files)
assert ret
return txobj
def update(self,
user_id,
public_keys_to_add=None,
public_keys_to_remove=None,
public_keys_to_replace=None,
keypair=None):
reftx = self.__update_local_database(user_id)
dat = bytearray(b'')
if public_keys_to_add is not None:
dat.extend(
Directive(Directive.CMD_ADD, public_keys_to_add).serialize())
if public_keys_to_remove is not None:
dat.extend(
Directive(Directive.CMD_REMOVE,
public_keys_to_remove).serialize())
if public_keys_to_replace is not None:
dat.extend(
Directive(Directive.CMD_REPLACE,
public_keys_to_replace).serialize())
tx = bbclib.make_transaction(event_num=1)
tx.events[0].asset_group_id = self.namespace_id
tx.events[0].asset.add(user_id=user_id, asset_body=dat)
tx.events[0].add(mandatory_approver=user_id)
bbclib.add_reference_to_transaction(tx, self.namespace_id, reftx, 0)
if keypair is None:
return tx
return self.sign_and_insert(tx, user_id, keypair)
def test_12_make_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
for i, cl in enumerate(clients):
print("---- start transaction ---")
user = cl['user_id']
other_user = (i + 1) % client_num
transactions[i] = bbclib.make_transaction(event_num=1,
witness=True,
format_type=fmt)
transactions[i].events[0].add(
mandatory_approver=clients[other_user]['user_id'])
bbclib.add_event_asset(transactions[i],
event_idx=0,
asset_group_id=asset_group_id,
user_id=user,
asset_body=b"data=%d" % i)
transactions[i].witness.add_witness(user_id=cl['user_id'])
sig = transactions[i].sign(keypair=cl['keypair'])
transactions[i].add_signature(user_id=cl['user_id'], signature=sig)
transactions[i].digest()
print("register transaction=",
binascii.b2a_hex(transactions[i].transaction_id))
cl['app'].insert_transaction(transactions[i])
print(" ----> wait insert")
dat = msg_processor[i].synchronize()
assert KeyType.transaction_id in dat
assert dat[
KeyType.transaction_id] == transactions[i].transaction_id
print(" ==> got insert")
time.sleep(2)
def test_13_make_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
for i, cl in enumerate(clients):
user = cl['user_id']
other_user = (i + 1) % client_num
txobj = bbclib.make_transaction(event_num=1,
witness=True,
format_type=fmt)
txobj.events[0].add(
reference_index=0,
mandatory_approver=clients[other_user]['user_id'])
bbclib.add_event_asset(txobj,
event_idx=0,
asset_group_id=asset_group_id,
user_id=user,
asset_body=b"data=%d" % i)
reference = bbclib.add_reference_to_transaction(
txobj, asset_group_id, transactions[i], 0)
ret = cl['app'].gather_signatures(txobj, reference_obj=reference)
assert ret
dat = msg_processor[i].synchronize()
assert dat[KeyType.status] == ESUCCESS
result = dat[KeyType.result]
txobj.references[result[0]].add_signature(user_id=result[1],
signature=result[2])
txobj.digest()
cl['app'].insert_transaction(txobj)
dat = msg_processor[i].synchronize()
assert KeyType.transaction_id in dat
assert dat[KeyType.transaction_id] == txobj.transaction_id
transactions[i] = txobj
def test_10_store_file(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
# -- first file store by user_0
store_transaction = bbclib.make_transaction(relation_num=1,
witness=True)
bbclib.add_relation_asset(store_transaction,
relation_idx=0,
asset_group_id=asset_group_id,
user_id=user_ids[0],
asset_body="Owner is 0",
asset_file=large_data)
store_transaction.witness.add_witness(user_ids[0])
sig = store_transaction.sign(private_key=keypairs[0].private_key,
public_key=keypairs[0].public_key)
store_transaction.get_sig_index(user_ids[0])
store_transaction.add_signature(user_id=user_ids[0], signature=sig)
store_transaction.digest()
print(store_transaction)
global transaction_id, asset_id
transaction_id = store_transaction.transaction_id
asset_id = store_transaction.relations[0].asset.asset_id
clients[0].insert_transaction(store_transaction)
response_data = clients[0].callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
assert False
time.sleep(1)
def sendback_exception_asset(approver_id, asset_group, asid):
asset = json.loads(get_data(asset_group, asid).decode("UTF-8"))
asset["owner"] = approver_id
asset["date"] = datetime.now().strftime('%s')
data = json.dumps(asset)
bbc_app_client = setup_bbc_client()
transaction = bbclib.make_transaction(event_num=1)
transaction.events[0].add(mandatory_approver=binascii.unhexlify(approver_id))
bbclib.add_event_asset(transaction, event_idx=0, asset_group_id=asset_group,
user_id=user_id, asset_body=data)
ref_tx = get_txid_from_asid(asset_group, asid)
transaction = add_ref_tx(asset_group, transaction, ref_tx, 0)
transaction.digest()
print(transaction)
ret = bbc_app_client.insert_transaction(transaction)
assert ret
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
print("TxID: %s", binascii.b2a_hex(response_data[KeyType.transaction_id]))
print("AsID: %s", binascii.b2a_hex(transaction.events[0].asset.asset_id))
bbc_app.store_id_mappings(data, asset_group,
transaction_id=response_data[KeyType.transaction_id],
asset_ids=transaction.events[0].asset.asset_id)
txinfo = [transaction.transaction_id, transaction.events[0].asset.asset_id]
bbc_app_client.send_message(txinfo, binascii.unhexlify(new_owner), asset_group)
print("Transfer is done.....")
def test_13_insert_first_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
user = clients[0]['user_id']
transactions[0] = bbclib.make_transaction(event_num=2, witness=True)
transactions[0].events[0].add(reference_index=0, mandatory_approver=user)
bbclib.add_event_asset(transactions[0], event_idx=0, asset_group_id=asset_group_id,
user_id=user, asset_body=b'123456')
bbclib.add_event_asset(transactions[0], event_idx=1, asset_group_id=asset_group_id,
user_id=user, asset_body=b'abcdefg')
transactions[0].witness.add_witness(user)
sig = transactions[0].sign(keypair=clients[0]['keypair'])
assert sig is not None
if sig is None:
print(bbclib.error_text)
import os
os._exit(1)
transactions[0].add_signature(user_id=user, signature=sig)
print(transactions[0])
transactions[0].digest()
global transaction_dat
transaction_dat = bbclib.serialize(transactions[0])
print("register transaction=", binascii.b2a_hex(transactions[0].transaction_id))
clients[0]['app'].insert_transaction(transactions[0])
dat = msg_processor[0].synchronize()
assert KeyType.transaction_id in dat
assert dat[KeyType.transaction_id] == transactions[0].transaction_id
time.sleep(2)
def test_20_make_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
user = clients[0]['user_id']
kp = clients[0]['keypair']
global start_from, transactions1
transactions1[0] = bbclib.make_transaction(relation_num=1,
witness=True)
bbclib.add_relation_asset(transactions1[0],
relation_idx=0,
asset_group_id=asset_group_id,
user_id=user,
asset_body=b'transaction1_0')
transactions1[0].witness.add_witness(user)
sig = transactions1[0].sign(keypair=kp)
transactions1[0].witness.add_signature(user, sig)
start_from = transactions1[0].timestamp
print("timestamp: %d" % transactions1[0].timestamp)
for i in range(1, 20):
time.sleep(0.5)
k = i - 1
transactions1[i] = bbclib.make_transaction(relation_num=1,
witness=True)
bbclib.add_relation_asset(transactions1[i],
0,
asset_group_id=asset_group_id,
user_id=user,
asset_body=b'transaction1_%d' % i)
bbclib.add_relation_pointer(
transactions1[i],
0,
ref_transaction_id=transactions1[k].transaction_id,
ref_asset_id=transactions1[k].relations[0].asset.asset_id)
transactions1[i].witness.add_witness(user)
sig = transactions1[i].sign(keypair=kp)
transactions1[i].witness.add_signature(user, sig)
print("timestamp: %d" % transactions1[i].timestamp)
clients[0]['app'].insert_transaction(transactions1[i])
dat = clients[0]['app'].callback.synchronize()
assert KeyType.transaction_id in dat
assert dat[
KeyType.transaction_id] == transactions1[i].transaction_id
def update(self,
user_id,
public_keys_to_add=None,
public_keys_to_remove=None,
public_keys_to_replace=None,
key_types_to_add=None,
key_types_to_remove=None,
key_types_to_replace=None,
keypair=None,
label=None):
"""Updates the mapping between the user ID and public keys.
Args:
user_id (bytes): The user ID.
public_keys_to_add (list): Adding keys. None by default.
public_keys_to_remove (list): Removing keys. None by default.
public_keys_to_replace (list): Replacing keys. None by default.
key_types_to_add (list): Adding key types. None by default.
key_types_to_remove (list): Removing key types. None by default.
key_types_to_replace (list): Replacing key types. None by default.
keypair (BBcKeypair): The keypair to sign the transaction with.
label (TransactionLabel): Label of transaction. None by default.
"""
reftx = self.__update_local_database(user_id)
dat = bytearray(b'')
if public_keys_to_add is not None:
dat.extend(
Directive(Directive.CMD_ADD, public_keys_to_add,
key_types_to_add).serialize(self.default_key_type))
if public_keys_to_remove is not None:
dat.extend(
Directive(Directive.CMD_REMOVE, public_keys_to_remove,
key_types_to_remove).serialize(
self.default_key_type))
if public_keys_to_replace is not None:
dat.extend(
Directive(Directive.CMD_REPLACE, public_keys_to_replace,
key_types_to_replace).serialize(
self.default_key_type))
tx = bbclib.make_transaction(event_num=1)
tx.events[0].asset_group_id = self.namespace_id
tx.events[0].asset.add(user_id=user_id, asset_body=dat)
tx.events[0].add(mandatory_approver=user_id)
if label is not None:
tx.add(event=label.get_event())
bbclib.add_reference_to_transaction(tx, self.namespace_id, reftx, 0)
if keypair is None:
return tx
return self.sign_and_insert(tx, user_id, keypair)
def store_proc(asset_body,
asset_file,
asset_group_id,
domain_id,
key_pair,
user_id,
txid=None):
bbc_app_client = setup_bbc_client(domain_id, user_id)
store_transaction = bbclib.make_transaction(relation_num=1, witness=True)
bbclib.add_relation_asset(store_transaction,
relation_idx=0,
asset_group_id=asset_group_id,
user_id=user_id,
asset_body=asset_body,
asset_file=asset_file)
store_transaction.witness.add_witness(user_id)
if txid:
bbc_app_client.search_transaction(txid)
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
return None, None, "ERROR: %s" % response_data[
KeyType.reason].decode()
prev_tx, fmt_type = bbclib.deserialize(
response_data[KeyType.transaction_data])
keypair = bbclib.KeyPair(privkey=key_pair.private_key,
pubkey=key_pair.public_key)
if not keypair.verify(prev_tx.transaction_id,
prev_tx.signatures[0].signature):
return None, None, "ERROR: Signature or keypair is invalid."
bbclib.add_relation_pointer(transaction=store_transaction,
relation_idx=0,
ref_transaction_id=prev_tx.transaction_id)
sig = store_transaction.sign(private_key=key_pair.private_key,
public_key=key_pair.public_key)
store_transaction.get_sig_index(user_id)
store_transaction.add_signature_object(user_id=user_id, signature=sig)
store_transaction.digest()
print(store_transaction)
ret = bbc_app_client.insert_transaction(store_transaction)
assert ret
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
return None, None, "ERROR: %s" % response_data[KeyType.reason].decode()
transaction_id = response_data[KeyType.transaction_id]
asset_ids = store_transaction.relations[0].asset.asset_id
return asset_ids, transaction_id, None
def test_02_make_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
user = clients[0]['user_id']
kp = clients[0]['keypair']
transactions1[0] = bbclib.make_transaction(relation_num=1, witness=True, format_type=fmt)
bbclib.add_relation_asset(transactions1[0], relation_idx=0, asset_group_id=asset_group_id,
user_id=user, asset_body=b'transaction1_0')
transactions1[0].witness.add_witness(user)
sig = transactions1[0].sign(keypair=kp)
transactions1[0].witness.add_signature(user, sig)
transactions2[0] = bbclib.make_transaction(event_num=1, witness=True, format_type=fmt)
transactions2[0].events[0].add(mandatory_approver=user)
bbclib.add_event_asset(transactions2[0], event_idx=0, asset_group_id=asset_group_id,
user_id=user, asset_body=b'transaction2_0')
transactions2[0].witness.add_witness(user)
sig = transactions2[0].sign(keypair=kp)
transactions2[0].witness.add_signature(user_id=user, signature=sig)
for i in range(1, 20):
k = i - 1
transactions1[i] = bbclib.make_transaction(relation_num=1, witness=True, format_type=fmt)
bbclib.add_relation_asset(transactions1[i], 0, asset_group_id=asset_group_id, user_id=user,
asset_body=b'transaction1_%d' % i)
bbclib.add_relation_pointer(transactions1[i], 0, ref_transaction_id=transactions1[k].transaction_id,
ref_asset_id=transactions1[k].relations[0].asset.asset_id)
transactions1[i].witness.add_witness(user)
sig = transactions1[i].sign(keypair=kp)
transactions1[i].witness.add_signature(user, sig)
transactions2[i] = bbclib.make_transaction(event_num=1, witness=True, format_type=fmt)
transactions2[i].events[0].add(mandatory_approver=user)
bbclib.add_event_asset(transactions2[i], event_idx=0, asset_group_id=asset_group_id,
user_id=user, asset_body=b'transaction2_%d' % i)
transactions2[i].witness.add_witness(user)
bbclib.add_reference_to_transaction(transactions2[i], asset_group_id, transactions2[k], 0)
sig = transactions2[i].sign(keypair=kp)
transactions2[i].witness.add_signature(user_id=user, signature=sig)
if i == 9:
bbclib.add_reference_to_transaction(transactions2[i], asset_group_id, transactions2[5], 0)
sig = transactions2[i].sign(keypair=kp)
transactions2[i].references[0].add_signature(user_id=user, signature=sig)
def test_02_make_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
user = clients[0]['user_id']
global transactions
transactions[0] = bbclib.make_transaction(event_num=2, witness=True)
transactions[0].events[0].add(reference_index=0, mandatory_approver=user)
bbclib.add_event_asset(transactions[0], event_idx=0, asset_group_id=asset_group_id,
user_id=user, asset_body=b'123456')
bbclib.add_event_asset(transactions[0], event_idx=1, asset_group_id=asset_group_id,
user_id=user, asset_body=b'abcdefg')
transactions[0].witness.add_witness(user)
def make_transaction(user_id, keypair):
txobj = bbclib.make_transaction(relation_num=1, witness=True)
bbclib.add_relation_asset(txobj,
relation_idx=0,
asset_group_id=asset_group_id,
user_id=user_id,
asset_body="data=%d" % random.randint(1, 10000),
asset_file=asset_file_content)
txobj.witness.add_witness(user_id)
txobj.add_signature(user_id, keypair=keypair)
txobj.digest()
return txobj
def create_user_id(self,
num_pubkeys=1,
public_keys=None,
key_types=None,
label=None):
"""Creates a user ID (and key pairs) and map public keys to it.
Args:
num_pubkeys (int): The number of new public keys to map to the ID.
public_keys (list): The public keys to map. None by default.
key_types (list): Types of the public keys. None by default.
label (TransactionLabel): Label of transaction. None by default.
Returns:
user_id (bytes): The created user ID.
initial_keypairs (list): The list of created key pairs.
"""
keypair = bbclib.KeyPair(curvetype=self.default_key_type)
keypair.generate()
user_id = hashlib.sha256(bytes(keypair.public_key)).digest()
# FIXME: detect collision
initial_keypairs = []
if public_keys is None:
public_keys = []
for i in range(num_pubkeys):
new_keypair = bbclib.KeyPair(curvetype=self.default_key_type)
new_keypair.generate()
initial_keypairs.append(new_keypair)
public_keys.append(new_keypair.public_key)
directive = Directive(Directive.CMD_REPLACE, public_keys, key_types)
tx = bbclib.make_transaction(event_num=1, witness=True)
tx.events[0].asset_group_id = self.namespace_id
tx.events[0].asset.add(user_id=user_id,
asset_body=directive.serialize(
self.default_key_type))
tx.events[0].add(mandatory_approver=user_id)
if label is not None:
tx.add(event=label.get_event())
tx.witness.add_witness(user_id)
self.sign_and_insert(tx, user_id, keypair)
return user_id, initial_keypairs
def generate_transaction(user_id, previous_txid):
"""
Generate a transaction object
:param user_id:
:param previous_txid:
:return:
"""
if previous_txid is not None:
print(previous_txid.hex())
# create a frame of transaction
txobj = bbclib.make_transaction(relation_num=1, witness=True)
# build asset body, which is the main data body you want to register in the bbc_core
asset_body_dict = {
"item_a": 1000,
"item_b": "xxxx",
"item_c": binascii.a2b_hex("0123456789")
}
asset_body_data = msgpack.dumps(
asset_body_dict
) # in this example, messagepack is used to transform the body data into binary format
# create relation object (BBcRelation) with asset and put the object into the transaction
bbclib.add_relation_asset(txobj,
relation_idx=0,
asset_group_id=asset_group_id,
user_id=user_id,
asset_body=asset_body_data)
# if previous_txid is not None, set BBcPointer to the relation object
if previous_txid is not None:
bbclib.add_relation_pointer(txobj, 0, ref_transaction_id=previous_txid)
# add witness to include signature of the user
txobj.witness.add_witness(user_id)
# sign to the transaction
keypair = read_keypair_file()
signature_obj = txobj.sign(private_key=keypair.private_key,
public_key=keypair.public_key)
txobj.witness.add_signature(user_id=user_id, signature=signature_obj)
txobj.digest()
return txobj
def store_proc(file, txid=None):
with open(file, "rb") as fin:
data = fin.read()
bbc_app_client = setup_bbc_client()
store_transaction = bbclib.make_transaction(relation_num=1, witness=True)
user_info = "Owner is %s" % user_name
bbclib.add_relation_asset(store_transaction,
relation_idx=0,
asset_group_id=asset_group_id,
user_id=user_id,
asset_body=user_info,
asset_file=data)
store_transaction.witness.add_witness(user_id)
if txid:
bbc_app_client.search_transaction(txid)
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
prev_tx, fmt_type = bbclib.deserialize(
response_data[KeyType.transaction_data])
bbclib.add_relation_pointer(transaction=store_transaction,
relation_idx=0,
ref_transaction_id=prev_tx.transaction_id)
sig = store_transaction.sign(private_key=key_pair.private_key,
public_key=key_pair.public_key)
store_transaction.get_sig_index(user_id)
store_transaction.add_signature_object(user_id=user_id, signature=sig)
store_transaction.digest()
print(store_transaction)
ret = bbc_app_client.insert_transaction(store_transaction)
assert ret
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
store_id_mappings(os.path.basename(file),
asset_group_id,
transaction_id=response_data[KeyType.transaction_id],
asset_ids=store_transaction.relations[0].asset.asset_id)
def store_proc(data, approver_id, txid=None):
bbc_app_client = setup_bbc_client()
transaction = bbclib.make_transaction(event_num=1)
transaction.events[0].add(mandatory_approver=approver_id)
bbclib.add_event_asset(transaction,
event_idx=0,
asset_group_id=asset_group_id,
user_id=user_id,
asset_body=data)
if txid:
bbc_app_client.search_transaction(txid)
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
prev_tx = bbclib.BBcTransaction(
deserialize=response_data[KeyType.transaction_data])
reference = bbclib.add_reference_to_transaction(
transaction, asset_group_id, prev_tx, 0)
sig = transaction.sign(key_type=bbclib.KeyType.ECDSA_SECP256k1,
private_key=key_pair.private_key,
public_key=key_pair.public_key)
transaction.references[0].add_signature(user_id=user_id, signature=sig)
else:
sig = transaction.sign(key_type=bbclib.KeyType.ECDSA_SECP256k1,
private_key=key_pair.private_key,
public_key=key_pair.public_key)
transaction.add_signature(signature=sig)
transaction.digest()
print(transaction)
ret = bbc_app_client.insert_transaction(transaction)
assert ret
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
print("TxID: %s", binascii.b2a_hex(response_data[KeyType.transaction_id]))
print("AsID: %s", binascii.b2a_hex(transaction.events[0].asset.asset_id))
txinfo = [transaction.transaction_id, transaction.events[0].asset.asset_id]
return txinfo
def create_transaction_object_for_filedata(receiver_name, receiver_user_id, ref_txids=None, file_data=None,
bbc_app_client=None):
if ref_txids is None or ref_txids[0] is None:
ref_txids = []
transaction = bbclib.make_transaction(relation_num=1, witness=True)
user_info_msg = "Ownership is transfered from %s to %s" % (user_name, receiver_name)
bbclib.add_relation_asset(transaction, relation_idx=0, asset_group_id=asset_group_id,
user_id=receiver_user_id, asset_body=user_info_msg, asset_file=file_data)
transaction.witness.add_witness(user_id)
transaction.witness.add_witness(receiver_user_id)
for i, ref_txid in enumerate(ref_txids):
bbc_app_client.search_transaction(ref_txid)
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
prev_tx = bbclib.BBcTransaction(deserialize=response_data[KeyType.transaction_data])
bbclib.add_relation_pointer(transaction, 0, ref_transaction_id=prev_tx.digest())
asset_id = transaction.relations[0].asset.asset_id
asset_files = {asset_id: file_data}
ret = bbc_app_client.gather_signatures(transaction, destinations=[receiver_user_id], asset_files=asset_files)
if not ret:
print("Failed to send sign request")
sys.exit(0)
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("Rejected because ", response_data[KeyType.reason].decode(), "")
sys.exit(0)
result = response_data[KeyType.result]
transaction.witness.add_signature(user_id=result[1], signature=result[2])
sig_mine = transaction.sign(key_type=bbclib.KeyType.ECDSA_SECP256k1, private_key=key_pair.private_key,
public_key=key_pair.public_key)
transaction.witness.add_signature(user_id=user_id, signature=sig_mine)
transaction.digest()
return transaction
def send_signreq(receiver_name,
receiver_user_id,
ref_txids=None,
file_data=None,
bbc_app_client=None):
transaction = bbclib.make_transaction(relation_num=1, witness=True)
user_info_msg = "Ownership is transfered from %s to %s" % (user_name,
receiver_name)
bbclib.add_relation_asset(transaction,
relation_idx=0,
asset_group_id=asset_group_id,
user_id=receiver_user_id,
asset_body=user_info_msg,
asset_file=file_data)
transaction.witness.add_witness(user_id)
transaction.witness.add_witness(receiver_user_id)
for i, ref_txid in enumerate(ref_txids):
bbc_app_client.search_transaction(ref_txid)
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
prev_tx, fmt_type = bbclib.deserialize(
response_data[KeyType.transaction_data])
bbclib.add_relation_pointer(transaction,
0,
ref_transaction_id=prev_tx.digest())
asset_id = transaction.relations[0].asset.asset_id
asset_files = {asset_id: file_data}
ret = bbc_app_client.gather_signatures(transaction,
destinations=[receiver_user_id],
asset_files=asset_files)
if not ret:
print("Failed to send sign request")
sys.exit(0)
return transaction
def create_user_id(self, num_pubkeys=1, public_keys=None):
keypair = bbclib.KeyPair()
user_id = hashlib.sha256(bytes(keypair.public_key)).digest()
# FIXME: detect collision
initial_keypairs = []
if public_keys is None:
public_keys = []
for i in range(num_pubkeys):
new_keypair = bbclib.KeyPair()
initial_keypairs.append(new_keypair)
public_keys.append(new_keypair.public_key)
directive = Directive(Directive.CMD_REPLACE, public_keys)
tx = bbclib.make_transaction(event_num=1, witness=True)
tx.events[0].asset_group_id = self.namespace_id
tx.events[0].asset.add(user_id=user_id,
asset_body=directive.serialize())
tx.events[0].add(mandatory_approver=user_id)
tx.witness.add_witness(user_id)
self.sign_and_insert(tx, user_id, keypair)
return (user_id, initial_keypairs)
def execute_escrow():
coinasset = json.loads(get_data(coin_asset_group, coinasid).decode("UTF-8"))
coinasset["owner"] = escrow["owner"]
coinasset["date"] = datetime.now().strftime('%s')
coinasset = json.dumps(coinasset)
cointx_id = get_txid_from_asid(coin_asset_group, coinasid)
landasset = json.loads(get_data(land_asset_group, landasid).decode("UTF-8"))
landasset["owner"] = escrow["newowner"]
landasset["date"] = datetime.now().strftime('%s')
landasset = json.dumps(landasset)
landtx_id = get_txid_from_asid(land_asset_group, landasid)
# Make TX
land_client = setup_bbc_client(land_domain_id)
transaction = bbclib.make_transaction(event_num=2)
# Add event and asset
print("Add event and asset")
bbclib.add_event_asset(transaction, event_idx=0, asset_group_id=land_asset_group,
user_id=user_id, asset_body=landasset)
transaction.events[0].add(mandatory_approver=binascii.unhexlify(escrow["newowner"]))
LAB_id = bbclib.get_new_id("LegalAffairsBureau", include_timestamp=False)
transaction.events[0].add(option_approver=LAB_id)
coin_client = setup_bbc_client(coin_domain_id)
bbclib.add_event_asset(transaction, event_idx=1, asset_group_id=coin_asset_group,
user_id=user_id, asset_body=coinasset)
transaction.events[1].add(mandatory_approver=binascii.unhexlify(escrow["owner"]))
# Add reference
print("Add reference")
land_client.search_transaction(landtx_id)
response_data = land_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
prev_tx = bbclib.BBcTransaction(deserialize=response_data[KeyType.transaction_data])
reference = bbclib.add_reference_to_transaction(transaction, land_asset_group, prev_tx, 0)
coin_client.search_transaction(cointx_id)
response_data = coin_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
prev_tx = bbclib.BBcTransaction(deserialize=response_data[KeyType.transaction_data])
reference = bbclib.add_reference_to_transaction(transaction, coin_asset_group, prev_tx,0)
# Add signature
print("Add signature to escrow TX")
sig = transaction.sign(key_type=bbclib.KeyType.ECDSA_SECP256k1,
private_key=key_pair.private_key,
public_key=key_pair.public_key)
transaction.references[0].add_signature(user_id=user_id, signature=sig)
print("Get signature from LegalAffairsBureau")
land_client.gather_signatures(transaction, destinations=[LAB_id])
response_data = land_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("Rejected because ", response_data[KeyType.reason].decode(), "")
sys.exit(0)
result = response_data[KeyType.result]
transaction.get_sig_index(result[1])
transaction.add_signature(user_id=result[1], signature=result[2])
transaction.digest()
print(transaction)
print("insert coin asset group")
ret = coin_client.insert_transaction(transaction)
assert ret
response_data = coin_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
print("TxID: %s", binascii.b2a_hex(response_data[KeyType.transaction_id]))
print("coinAsID: %s", binascii.b2a_hex(transaction.events[0].asset.asset_id))
print("landAsID: %s", binascii.b2a_hex(transaction.events[1].asset.asset_id))
cointxinfo = [transaction.transaction_id, transaction.events[0].asset.asset_id]
landtxinfo = [transaction.transaction_id, transaction.events[1].asset.asset_id]
print("insert land asset group")
ret = land_client.insert_transaction(transaction)
assert ret
response_data = land_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
print("TxID: %s", binascii.b2a_hex(response_data[KeyType.transaction_id]))
print("coinAsID: %s", binascii.b2a_hex(transaction.events[0].asset.asset_id))
print("landAsID: %s", binascii.b2a_hex(transaction.events[1].asset.asset_id))
txinfo = [transaction.transaction_id, transaction.events[0].asset.asset_id]
coin_client.send_message(txinfo, binascii.unhexlify(escrow["owner"]), coin_asset_group)
txinfo = [transaction.transaction_id, transaction.events[1].asset.asset_id]
land_client.send_message(txinfo, binascii.unhexlify(escrow["newowner"]), land_asset_group)
print("Transfer is done.....")
def store_proc(data, approver_id, txid=None):
bbc_app_client = setup_bbc_client()
store_transaction = bbclib.make_transaction(event_num=1)
store_transaction.events[0].add(mandatory_approver=approver_id)
bbclib.add_event_asset(store_transaction,
event_idx=0,
asset_group_id=asset_group_id,
user_id=user_id,
asset_body=data)
LAB_id = bbclib.get_new_id("LegalAffairsBureau", include_timestamp=False)
store_transaction.events[0].add(option_approver=LAB_id)
if txid:
bbc_app_client.search_transaction(txid)
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
prev_tx = bbclib.BBcTransaction(
deserialize=response_data[KeyType.transaction_data])
reference = bbclib.add_reference_to_transaction(
store_transaction, asset_group_id, prev_tx, 0)
sig = store_transaction.sign(key_type=bbclib.KeyType.ECDSA_SECP256k1,
private_key=key_pair.private_key,
public_key=key_pair.public_key)
store_transaction.references[0].add_signature(user_id=user_id,
signature=sig)
else:
sig = store_transaction.sign(key_type=bbclib.KeyType.ECDSA_SECP256k1,
private_key=key_pair.private_key,
public_key=key_pair.public_key)
store_transaction.add_signature(signature=sig)
store_transaction.add_signature(user_id=user_id, signature=sig)
# Get signature from LegalAffairsBureau
bbc_app_client.gather_signatures(store_transaction, destinations=[LAB_id])
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("Rejected because ", response_data[KeyType.reason].decode(), "")
sys.exit(0)
result = response_data[KeyType.result]
store_transaction.get_sig_index(result[1])
store_transaction.add_signature(user_id=result[1], signature=result[2])
store_transaction.digest()
print(store_transaction)
ret = bbc_app_client.insert_transaction(store_transaction)
assert ret
response_data = bbc_app_client.callback.synchronize()
if response_data[KeyType.status] < ESUCCESS:
print("ERROR: ", response_data[KeyType.reason].decode())
sys.exit(0)
print("TxID: %s", binascii.b2a_hex(response_data[KeyType.transaction_id]))
print("AsID: %s",
binascii.b2a_hex(store_transaction.events[0].asset.asset_id))
txinfo = [
store_transaction.transaction_id,
store_transaction.events[0].asset.asset_id
]
return txinfo