def proc_cmd_sign_request(self, dat):
self.logger.info(
"[%d] Recv SIGN_REQUEST from %s" %
(self.idx, binascii.b2a_hex(dat[KeyType.source_user_id])))
if KeyType.transactions not in dat:
self.logger.warn("message needs to include referred transactions")
return
txobj = bbclib.BBcTransaction()
txobj.deserialize(dat[KeyType.transaction_data])
objs = dict()
for txid, txdata in dat[KeyType.transactions].items():
txo = bbclib.BBcTransaction()
txo.deserialize(txdata)
objs[txid] = txo
for i, reference in enumerate(txobj.references):
event = objs[reference.transaction_id].events[
reference.event_index_in_ref]
if clients[self.idx]['user_id'] in event.mandatory_approvers:
signature = txobj.sign(keypair=clients[self.idx]['keypair'])
clients[self.idx]['app'].sendback_signature(
dat[KeyType.source_user_id], txobj.transaction_id, i,
signature)
return
def test_10_search_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
transactions[0] = bbclib.BBcTransaction()
transactions[0].deserialize(transaction_dat)
print("find txid=", binascii.b2a_hex(transactions[0].transaction_id))
clients[1]['app'].search_transaction(transactions[0].transaction_id)
dat = msg_processor[1].synchronize()
assert dat[KeyType.status] == 0
assert KeyType.transaction_data in dat
txobj = bbclib.BBcTransaction(
deserialize=dat[KeyType.transaction_data])
assert txobj.transaction_id == transactions[0].transaction_id
def chown(new_owner, asid):
asset = json.loads(get_landdata(asid).decode("UTF-8"))
if asset["owner"] != binascii.b2a_hex(user_id).decode("UTF-8"):
print("Owner of this asset is not you")
return 0
asset["owner"] = new_owner
asset["date"] = datetime.now().strftime('%s')
data = json.dumps(asset)
bbc_app_client = setup_bbc_client()
asid = binascii.unhexlify(asid)
ret = bbc_app_client.search_transaction_with_condition(
asset_group_id, asid)
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)
get_transaction = bbclib.BBcTransaction()
get_transaction.deserialize(response_data[KeyType.transactions][0])
transaction_id = get_transaction.transaction_id
transaction_info = store_proc(data,
approver_id=binascii.unhexlify(new_owner),
txid=transaction_id)
bbc_app_client.send_message(transaction_info,
binascii.unhexlify(new_owner))
print("Transfer is done.....")
def test_01_setup(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
global data_handler
dummycore = DummyCore()
conf = config["domains"][bbclib.convert_id_to_string(domain_id)]
data_handler = DataHandler(networking=dummycore.networking, config=conf, workingdir="testdir", domain_id=domain_id)
global transactions
for i in range(10):
txobj = bbclib.BBcTransaction()
evt = bbclib.BBcEvent()
evt.asset_group_id = asset_group_id1
evt.asset = bbclib.BBcAsset()
evt.asset.add(user_id=user_id1, asset_body=b'aaaaaa')
rtn = bbclib.BBcRelation()
rtn.asset_group_id = asset_group_id2
rtn.asset = bbclib.BBcAsset()
rtn.asset.add(user_id=user_id2, asset_body=b'bbbbbb', asset_file=b'cccccccccc%d' % i)
ptr = bbclib.BBcPointer()
ptr.add(transaction_id=txid1)
rtn.add(pointer=ptr)
if i > 0:
ptr = bbclib.BBcPointer()
ptr.add(transaction_id=transactions[-1].transaction_id)
rtn.add(pointer=ptr)
wit = bbclib.BBcWitness()
txobj.add(event=evt, relation=rtn, witness=wit)
wit.add_witness(user_id1)
sig = txobj.sign(private_key=keypair1.private_key, public_key=keypair1.public_key)
txobj.add_signature(user_id=user_id1, signature=sig)
txobj.digest()
transactions.append(txobj)
def _receive_transaction_data_from_others(self, dat):
"""Receive transaction data from other core_nodes and check its validity
Args:
dat (dict): received message
"""
#print("_receive_transaction_data_from_others:")
if KeyType.transaction_data not in dat or KeyType.transaction_id not in dat or KeyType.nonce not in dat:
return
if dat[KeyType.nonce] not in self.requesting_list:
return
asset_files = dict()
if KeyType.all_asset_files in dat:
asset_files = dat[KeyType.all_asset_files]
txobj = bbclib.BBcTransaction(deserialize=dat[KeyType.transaction_data])
if txobj.transaction_data is None:
return
txobj_is_valid, valid_assets, invalid_assets = bbclib.validate_transaction_object(txobj, asset_files)
if txobj_is_valid:
self.stats.update_stats_increment("transaction", "success_repair", 1)
for idx in range(len(self.data_handler.db_adaptors)):
self.data_handler.restore_transaction_data(db_num=idx, transaction_id=txobj.transaction_id, txobj=txobj)
add_info = {
"repaired_by": dat[KeyType.source_node_id].hex(),
"repaired_at": int(time.time())
}
self.requesting_list[dat[KeyType.nonce]].update(add_info)
self._output_log(self.requesting_list[dat[KeyType.nonce]])
del self.requesting_list[dat[KeyType.nonce]]
def prepare_transaction(asset_group,
client,
datnum,
txid_pointer=None,
no_cross_ref=False):
user_id = client['user_id']
kp = client['keypair']
txobj = bbclib.BBcTransaction()
rtn = bbclib.BBcRelation()
asset = bbclib.BBcAsset()
asset.add(user_id=user_id, asset_body=b'data=%d' % datnum)
rtn.add(asset_group_id=asset_group, asset=asset)
if txid_pointer is not None:
ptr = bbclib.BBcPointer()
ptr.add(transaction_id=txid_pointer)
rtn.add(pointer=ptr)
wit = bbclib.BBcWitness()
txobj.add(relation=rtn, witness=wit)
wit.add_witness(user_id)
if not no_cross_ref:
client['app'].include_cross_ref(txobj)
sig = txobj.sign(key_type=bbclib.KeyType.ECDSA_SECP256k1, keypair=kp)
txobj.add_signature(user_id=user_id, signature=sig)
txobj.digest()
return txobj
def remove(self, transaction_id, txobj=None, db_num=-1):
"""Delete all data regarding the specified transaction_id
This method requires either transaction_id or txobj.
Args:
transaction_id (bytes): target transaction_id
txobj (BBcTransaction): transaction object to remove
db_num (int): index of DB if multiple DBs are used
"""
if transaction_id is None:
return
if txobj is None:
txdata = self.exec_sql(
sql="SELECT * FROM transaction_table WHERE transaction_id = %s"
% self.db_adaptors[0].placeholder,
args=(transaction_id, ))
txobj = bbclib.BBcTransaction(deserialize=txdata[0][1])
elif txobj.transaction_id != transaction_id:
return
if db_num == -1 or db_num >= len(self.db_adaptors):
for i in range(len(self.db_adaptors)):
self._remove_transaction(txobj, i)
else:
self._remove_transaction(txobj, db_num)
def test_07_1_insert_transaction(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
global transaction
transaction = bbclib.BBcTransaction()
rtn = bbclib.BBcRelation()
rtn.asset_group_id = asset_group_id
rtn.asset = bbclib.BBcAsset()
rtn.asset.add(user_id=user_id1, asset_body=b'bbbbbb', asset_file=b'cccccccccc')
ptr = bbclib.BBcPointer()
ptr.add(transaction_id=txid1)
rtn.add(pointer=ptr)
wit = bbclib.BBcWitness()
transaction.add(relation=rtn, witness=wit)
wit.add_witness(user_id1)
sig = transaction.sign(private_key=keypair.private_key, public_key=keypair.public_key)
transaction.add_signature_object(user_id=user_id1, signature=sig)
transaction.digest()
asset_files = {
transaction.relations[0].asset.asset_id: transaction.relations[0].asset.asset_file,
}
ret = cores[0].insert_transaction(domain_id, bbclib.serialize(transaction), asset_files)
assert ret[KeyType.transaction_id] == transaction.transaction_id
ret = cores[0]._search_transaction_by_txid(domain_id, transaction.transaction_id)
assert ret is not None
assert len(ret[KeyType.all_asset_files]) == 1
print(ret)
print("-- wait 2 seconds --")
time.sleep(2)
def verify_file(file):
fileinfo = get_id_from_mappings(os.path.basename(file), asset_group_id)
if fileinfo is None:
print("Not exists in local mapping cache. So, asset_id is not known...")
sys.exit(1)
bbc_app_client = setup_bbc_client()
ret = bbc_app_client.search_transaction_with_condition(asset_group_id=asset_group_id, asset_id=fileinfo["asset_id"])
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)
transaction = bbclib.BBcTransaction(deserialize=response_data[KeyType.transactions][0])
digest = transaction.digest()
ret = transaction.signatures[0].verify(digest)
if not ret:
print("Transaction data is invalid.")
sys.exit(1)
with open(file, "rb") as fin:
data = fin.read()
file_digest = hashlib.sha256(data).digest()
if file_digest == transaction.relations[0].asset.asset_file_digest:
print("%s is valid" % file)
else:
print("%s is invalid" % file)
print("done verify %s" % os.path.basename(file))
print("Content of the transaction:::")
print(transaction)
def get_file(file):
fileinfo = get_id_from_mappings(os.path.basename(file), asset_group_id)
if fileinfo is None:
print("Not exists in local mapping cache. So, asset_id is not known...")
sys.exit(1)
bbc_app_client = setup_bbc_client()
ret = bbc_app_client.search_transaction_with_condition(asset_group_id=asset_group_id, asset_id=fileinfo["asset_id"])
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)
get_transaction = bbclib.BBcTransaction(deserialize=response_data[KeyType.transactions][0])
if KeyType.all_asset_files in response_data:
asset_file_dict = response_data[KeyType.all_asset_files]
asset_id = get_transaction.relations[0].asset.asset_id
data = asset_file_dict[asset_id]
else:
data = get_transaction.relations[0].asset.asset_body
out_file_name = file
if os.path.exists(out_file_name):
current_datetime = datetime.datetime.now()
time_str = current_datetime.strftime('_%Y%m%d%H%M%S')
out_file_name += time_str
with open(out_file_name, "wb") as outfile:
outfile.write(data)
print("done get %s" % out_file_name)
def set_mint_data(self,
index,
asset_body,
update=False,
keypair=None,
idPublickeyMap=None):
store_id = self.store_ids[index]
if update:
self.app.search_transaction_with_condition(
asset_group_id=self.mint_id, user_id=store_id)
res = self.app.callback.synchronize()
if res[KeyType.status] >= ESUCCESS:
reftx = bbclib.BBcTransaction(
deserialize=res[KeyType.transactions][0])
else:
reftx = None
tx = bbclib.make_transaction_for_base_asset(
asset_group_id=self.mint_id, event_num=1)
tx.events[0].asset.add(user_id=store_id, asset_body=asset_body)
tx.events[0].add(mandatory_approver=self.mint_id)
if reftx is None:
tx.add(witness=bbclib.BBcWitness())
tx.witness.add_witness(self.mint_id)
else:
bbclib.add_reference_to_transaction(self.mint_id, tx, reftx, 0)
if keypair is None:
return tx
return self.sign_and_insert(tx, self.mint_id, keypair, idPublickeyMap)
def prepare_transactions():
global transactions
for i in range(client_num*2):
txobj = bbclib.BBcTransaction()
evt = bbclib.BBcEvent()
evt.asset_group_id = asset_group_id1
evt.asset = bbclib.BBcAsset()
evt.asset.add(user_id=user_id1, asset_body=b'aaaaaa')
rtn = bbclib.BBcRelation()
rtn.asset_group_id = asset_group_id2
rtn.asset = bbclib.BBcAsset()
rtn.asset.add(user_id=user_id2, asset_body=b'bbbbbb', asset_file=b'cccccccccc%d' % i)
ptr = bbclib.BBcPointer()
ptr.add(transaction_id=txid1)
rtn.add(pointer=ptr)
rtn2 = bbclib.BBcRelation()
rtn2.asset_group_id = asset_group_id3
rtn2.asset = bbclib.BBcAsset()
rtn2.asset.add(user_id=user_id2, asset_body=b'cccccc')
if i > 0:
ptr = bbclib.BBcPointer()
ptr.add(transaction_id=transactions[-1].transaction_id)
rtn.add(pointer=ptr)
wit = bbclib.BBcWitness()
if i % 2 == 0:
txobj.add(event=evt, relation=[rtn, rtn2], witness=wit)
else:
txobj.add(event=evt, relation=rtn, witness=wit)
wit.add_witness(user_id1)
sig = txobj.sign(private_key=keypair1.private_key, public_key=keypair1.public_key)
txobj.add_signature(user_id=user_id1, signature=sig)
txobj.digest()
transactions.append(txobj)
def test_19_search_asset(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
clients[0]['app'].search_transaction_with_condition(
asset_group_id=asset_group_id,
asset_id=transactions[0].events[1].asset.asset_id)
dat = msg_processor[0].synchronize()
assert KeyType.transactions in dat
txobj = bbclib.BBcTransaction(deserialize=dat[KeyType.transactions][0])
assert txobj.transaction_id == transactions[0].transaction_id
def recive():
bbc_app_client = setup_bbc_client()
print("Waiting for the message of chown land...")
recvdat = bbc_app_client.callback.synchronize()
transaction = bbclib.BBcTransaction()
transaction.deserialize(recvdat[KeyType.transaction_data])
print(transaction)
data = json.loads(transaction.events[0].asset.asset_body)
if transaction.references:
print("TX has reference...")
sql = "select * from land where reftx like (?)"
cur.execute(
sql,
(binascii.hexlify(transaction.references[0].transaction_id), ))
list = cur.fetchall()
if len(list) != 0:
print("Ref tx has alredy been referenced")
bbc_app_client.sendback_denial_of_sign(
recvdat[KeyType.source_user_id], transaction.transaction_id,
"Ref tx has alredy been referenced")
return 0
else:
print("Ref tx has not been referenced.")
sql = "select * from land where txid like (?)"
cur.execute(
sql,
(binascii.hexlify(transaction.references[0].transaction_id), ))
list = cur.fetchall()
if len(list) == 0:
print("ref tx is not found")
bbc_app_client.sendback_denial_of_sign(
recvdat[KeyType.source_user_id],
transaction.transaction_id, "Ref Tx is not found")
return 0
else:
print("Ref is correct, insert tx to our DB.")
sql = u"insert into land(asid,txid,place,owner,reftx) values (?, ?, ?, ?, ?)"
con.execute(
sql,
(binascii.hexlify(transaction.events[0].asset.asset_id),
binascii.hexlify(transaction.transaction_id),
data["place"], data["owner"],
binascii.hexlify(
transaction.references[0].transaction_id)))
con.commit()
else:
print("This tx is land registration tx.")
sql = u"insert into land(asid,txid,place,owner,reftx) values (?, ?, ?, ?, ?)"
con.execute(sql,
(binascii.hexlify(transaction.events[0].asset.asset_id),
binascii.hexlify(transaction.transaction_id),
data["place"], data["owner"], None))
con.commit()
signature = transaction.sign(keypair=key_pair)
bbc_app_client.sendback_signature(recvdat[KeyType.source_user_id],
transaction.transaction_id, 0, signature)
def proc_cmd_sign_request(self, dat):
self.logger.debug(
"[%i] Recv SIGN_REQUEST from %s" %
(self.idx, binascii.b2a_hex(dat[KeyType.source_user_id])))
txobj = bbclib.BBcTransaction()
txobj.deserialize(dat[KeyType.transaction_data])
signature = txobj.sign(keypair=clients[self.idx]['keypair'])
clients[self.idx]['app'].sendback_signature(
dat[KeyType.source_user_id], txobj.transaction_id, signature)
def get_mint_data(self, index):
store_id = self.store_ids[index]
self.app.search_transaction_with_condition(asset_group_id=self.mint_id,
user_id=store_id)
res = self.app.callback.synchronize()
if res[KeyType.status] < ESUCCESS:
raise ValueError('not found')
tx = bbclib.BBcTransaction(deserialize=res[KeyType.transactions][0])
return tx.events[0].asset.asset_body
def test_21_search_transaction_by_userid(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
clients[0]['app'].search_transaction_with_condition(
asset_group_id=asset_group_id, user_id=clients[0]['user_id'])
dat = wait_check_result_msg_type(
msg_processor[0], bbclib.MsgType.RESPONSE_SEARCH_WITH_CONDITIONS)
assert dat[KeyType.status] == ESUCCESS
assert KeyType.transactions in dat
transaction_data = dat[KeyType.transactions][0]
txobj = bbclib.BBcTransaction(deserialize=transaction_data)
print(txobj)
def proc_resp_search_asset(self, dat):
if KeyType.transaction_data in dat:
self.logger.info("OK: Asset [%s] is found." % binascii.b2a_hex(dat[KeyType.asset_id]))
tx_obj = bbclib.BBcTransaction(deserialize=dat[KeyType.transaction_data])
for evt in tx_obj.events:
if evt.asset.asset_body_size > 0:
self.logger.info(" [%s] asset_body --> %s" % (binascii.b2a_hex(evt.asset.asset_id[:4]),
evt.asset.asset_body))
else:
self.logger.info("NG.....")
self.queue.put(dat)
def take_tx(self, tx_id):
if self.db_online is False:
return None
rows = self.db.exec_sql(
self.domain_id, NAME_OF_DB,
'select tx from token_tx_id_table where tx_id=?', tx_id)
if len(rows) <= 0:
return None
tx = bbclib.BBcTransaction()
tx.deserialize(rows[0][0])
self.db.exec_sql(self.domain_id, NAME_OF_DB,
'delete from token_tx_id_table where tx_id=?', tx_id)
return tx
def test_04_search_transaction_direction_backward(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
clients[0]['app'].traverse_transactions(transactions1[1].transaction_id, direction=1, hop_count=3)
dat = clients[0]['app'].callback.synchronize()
assert dat[KeyType.status] == 0
assert KeyType.transaction_tree in dat
assert len(dat[KeyType.transaction_tree]) == 2
asset_bodies = list()
for i, txtree in enumerate(dat[KeyType.transaction_tree]):
for txdat in txtree:
txobj = bbclib.BBcTransaction(deserialize=txdat)
asset_body = txobj.relations[0].asset.asset_body
print("[%d] asset=%s" % (i, asset_body))
asset_bodies.append(asset_body)
assert b'transaction1_1' in asset_bodies
assert b'transaction1_0' in asset_bodies
def test_07_search_transaction_direction_forward(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
clients[0]['app'].traverse_transactions(transactions2[4].transaction_id, direction=0, hop_count=10)
dat = clients[0]['app'].callback.synchronize()
assert dat[KeyType.status] == 0
assert KeyType.transaction_tree in dat
assert KeyType.all_included in dat and not dat[KeyType.all_included]
print("*Expected sequences: 4-5-6-7-8, 4-5-9-10-11-12-13-14 (total txobj count=11)")
assert len(dat[KeyType.transaction_tree]) == 8 # "4-5-9-10-11-12-13-14"
asset_bodies = list()
for i, txtree in enumerate(dat[KeyType.transaction_tree]):
for txdat in txtree:
txobj = bbclib.BBcTransaction(deserialize=txdat)
asset_body = txobj.events[0].asset.asset_body
print("[%d] asset=%s" % (i, asset_body))
asset_bodies.append(asset_body)
def get_txid_from_asid(asset_group, asid):
if asset_group == land_asset_group:
bbc_app_client = setup_bbc_client(land_domain_id)
elif asset_group == coin_asset_group:
bbc_app_client = setup_bbc_client(coin_domain_id)
asid = binascii.unhexlify(asid)
ret = bbc_app_client.search_transaction_with_condition(asset_group, asid)
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)
get_transaction = bbclib.BBcTransaction()
get_transaction.deserialize(response_data[KeyType.transactions][0])
transaction_id = get_transaction.transaction_id
return transaction_id
def pick_valid_transaction_info(received_data=None, bbc_app_client=None):
transaction = bbclib.BBcTransaction()
transaction.deserialize(received_data[KeyType.transaction_data])
asset_files = received_data[KeyType.all_asset_files]
asid = transaction.relations[0].asset.asset_id
assert asid in asset_files
file_to_obtain = asset_files[asid]
file_digest = hashlib.sha256(file_to_obtain).digest()
print("----------------[Receiver]----------------")
print(
"File digest written in the transaction data: ",
binascii.b2a_hex(
transaction.relations[0].asset.asset_file_digest).decode())
print("File digest calculated from the received file:",
binascii.b2a_hex(file_digest).decode())
print("------------------------------------------")
return transaction, received_data[KeyType.source_user_id]
def get_landdata(asid):
bbc_app_client = setup_bbc_client()
asid = binascii.unhexlify(asid)
ret = bbc_app_client.search_transaction_with_condition(
asset_group_id, asid)
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)
get_transaction = bbclib.BBcTransaction()
get_transaction.deserialize(response_data[KeyType.transactions][0])
retdata = get_transaction.events[0].asset.asset_body
refdata = get_transaction.references
print("get: %s" % retdata)
print("ref: %s" % refdata)
return retdata
def proc_cmd_sign_request(self, dat):
source_user_id = dat[KeyType.source_user_id]
if self.keypair is None:
self.mint.app.sendback_denial_of_sign(source_user_id,
'keypair is unset')
tx = bbclib.BBcTransaction()
tx.deserialize(dat[KeyType.transaction_data])
# FIXME: check validity
sig = self.mint.store.sign(tx, self.mint.user_id, self.keypair)
tx.digest()
self.mint.store.reserve_referred_utxos(tx)
self.mint.store.push_tx(tx.transaction_id, tx)
self.mint.app.sendback_signature(source_user_id, tx.transaction_id, -1,
sig)
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 test_11_verify_file(self):
print("\n-----", sys._getframe().f_code.co_name, "-----")
# -- verify by user_1
clients[1].search_transaction_with_condition(
asset_group_id=asset_group_id, asset_id=asset_id)
response_data = clients[1].callback.synchronize()
assert response_data[KeyType.status] == ESUCCESS
txobj = bbclib.BBcTransaction(
deserialize=response_data[KeyType.transactions][0])
digest = txobj.digest()
ret = txobj.signatures[0].verify(digest)
assert ret
file_digest = hashlib.sha256(large_data).digest()
if file_digest == txobj.relations[0].asset.asset_file_digest:
print("oooo valid")
else:
print("xxxx invalid")
print(txobj)
def pick_valid_transaction_info(received_data=None, bbc_app_client=None):
transaction = bbclib.BBcTransaction(deserialize=received_data[KeyType.transaction_data])
asset_files = received_data[KeyType.all_asset_files]
asset_id = transaction.relations[0].asset.asset_id
if asset_id not in asset_files:
print("**** No valid file is received...")
print(received_data)
bbc_app_client.sendback_denial_of_sign(received_data[KeyType.source_user_id],
transaction.transaction_id,
"No valid file is received.")
sys.exit(1)
file_to_obtain = asset_files[asset_id]
file_digest = hashlib.sha256(file_to_obtain).digest()
print("--------------------------")
print("File digest written in the transaction data: ",
binascii.b2a_hex(transaction.relations[0].asset.asset_file_digest).decode())
print("File digest calculated from the received file:", binascii.b2a_hex(file_digest).decode())
print("--------------------------")
return transaction, received_data[KeyType.source_user_id]
def add_ref_tx(asset_group,transaction,ref_tx,ref_index):
if asset_group == land_asset_group:
bbc_app_client = setup_bbc_client(land_domain_id)
elif asset_group == coin_asset_group:
bbc_app_client = setup_bbc_client(coin_domain_id)
bbc_app_client.search_transaction(ref_tx)
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, 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[ref_index].add_signature(user_id=user_id, signature=sig)
if asset_group == land_asset_group:
print("ref to land asset")
return transaction
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 = bbclib.BBcTransaction(
deserialize=response_data[KeyType.transaction_data])
bbclib.add_relation_pointer(txobj,
0,
ref_transaction_id=prev_tx.digest())
sig_mine = txobj.sign(key_type=bbclib.KeyType.ECDSA_SECP256k1,
private_key=keypairs[idx].private_key,
public_key=keypairs[idx].public_key)
txobj.witness.add_signature(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
