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
print(txobj)
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 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 remove(self, transaction_id, txobj=None, db_num=-1):
"""
Delete all data regarding the specified transaction_id
:param transaction_id:
:param txobj:
:param db_num:
:return:
"""
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)
self.remove_asset_files(txobj)
def chown(new_owner, asid):
asset = json.loads(get_coindata(asid).decode("UTF-8"))
if asset["owner"] != binascii.b2a_hex(user_id).decode("UTF-8"):
print("Owner of this coin 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()
ret = bbc_app_client.search_asset(asset_group_id, binascii.unhexlify(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.transaction_data])
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 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 receive_transaction_data_from_others(self, dat):
"""
Receive transaction data from other core_nodes and check its validity
:param dat:
:return:
"""
#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 and len(invalid_assets) == 0:
self.stats.update_stats_increment("transaction", "success_repair", 1)
for idx in range(len(self.data_handler.db_adaptors)):
self.data_handler.restore_data(db_num=idx, transaction_id=txobj.transaction_id,
txobj=txobj, asset_files=valid_assets)
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 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])
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(asset_group_id, dat[KeyType.source_user_id], i, signature)
return
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])
transaction.dump()
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(
asset_group_id, recvdat[KeyType.source_user_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(
asset_group_id, recvdat[KeyType.source_user_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(asset_group_id,
recvdat[KeyType.source_user_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 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 get_txid_from_asid(asset_group, asid):
bbc_app_client = setup_bbc_client(asset_group)
ret = bbc_app_client.search_asset(asset_group, binascii.unhexlify(asid))
assert ret
response_data = bbc_app_client.callback.synchronize()
get_transaction = bbclib.BBcTransaction()
get_transaction.deserialize(response_data[KeyType.transaction_data])
transaction_id = get_transaction.transaction_id
return transaction_id
def store_proc(data, approver_id, txid=None):
# make transaction object
transaction = bbclib.make_transaction_for_base_asset(
asset_group_id=asset_group_id, event_num=1)
transaction.events[0].add(mandatory_approver=approver_id,
asset_group_id=asset_group_id)
transaction.events[0].asset.add(user_id=user_id, asset_body=data)
if txid:
obj = {
"jsonrpc": "2.0",
"method": "bbc1_GetTransaction",
"params": {
"asset_group_id": bbclib.bin2str_base64(asset_group_id),
"tx_id": txid,
"user_id": bbclib.bin2str_base64(user_id),
},
"id": 114514
}
response = json_post(obj)
prevtx = response["result"]
prevtx = bbclib.BBcTransaction(jsonload=prevtx)
bbclib.add_reference_to_transaction(asset_group_id, transaction,
prevtx, 0)
# get transaction digest
jsontx = transaction.jsondump()
obj = {
"jsonrpc": "2.0",
"method": "bbc1_GetTransactionDigest",
"params": jsontx,
"id": 114514
}
response = json_post(obj)
# add sign to transaction json
sig = bbclib.bin2str_base64(
key_pair.sign(
binascii.a2b_base64(response["result"]["digest"].encode("utf-8"))))
jsontx = json.loads(response["result"]["tx"])
sig = {
"type": 1,
"signature": sig,
"pubkey": bbclib.bin2str_base64(key_pair.public_key)
}
jsontx["Signature"].append(sig)
# Insert Transaction
obj = {
"jsonrpc": "2.0",
"method": "bbc1_InsertTransaction",
"params": json.dumps(jsontx),
"id": 114514
}
response = json_post(obj)
print("TXID: %s" % response["result"])
print("ASID: %s" % jsontx["Event"][0]["Asset"]["asset_id"])
return response["result"]
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 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 get_data(asset_group, asid):
bbc_app_client = setup_bbc_client(asset_group)
asid = binascii.unhexlify(asid)
ret = bbc_app_client.search_asset(asset_group, asid)
assert ret
response_data = bbc_app_client.callback.synchronize()
get_transaction = bbclib.BBcTransaction()
get_transaction.deserialize(response_data[KeyType.transaction_data])
retdata = get_transaction.events[0].asset.asset_body
refdata = get_transaction.references
return retdata
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 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.events[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.events[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_coindata(asid):
bbc_app_client = setup_bbc_client()
asid = binascii.unhexlify(asid)
ret = bbc_app_client.search_asset(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.transaction_data])
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 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(key_type=bbclib.KeyType.ECDSA_SECP256k1,
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_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(key_type=bbclib.KeyType.ECDSA_SECP256k1,
private_key=keypair.private_key,
public_key=keypair.public_key)
transaction.add_signature(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, transaction.serialize(),
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 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(key_type=bbclib.KeyType.ECDSA_SECP256k1,
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 __update_local_database(self, user_id):
ret = self.__app.search_transaction_with_condition(
asset_group_id=self.namespace_id, user_id=user_id)
res = self.__app.callback.sync_by_queryid(
ret, 2) # FIXME: slow when not found
if res is None or res[KeyType.status] < ESUCCESS:
raise ValueError('not found')
tx = bbclib.BBcTransaction(deserialize=res[KeyType.transactions][0])
tx_last = tx
tx_directives = []
while True:
ret = self.__db.exec_sql_fetchone(
self.domain_id, NAME_OF_DB,
('select * from id_pubkey_table where '
'tx_id_added=? or tx_id_removed=?'), tx.transaction_id,
tx.transaction_id)
if ret is not None:
break
directives = []
event = self.__get_event(tx, user_id)
ptr = 0
while True:
ptr, directive = Directive.from_serialized_data(
ptr, event.asset.asset_body)
if directive is None:
break
directives.append(directive)
tx_directives.append((tx.transaction_id, directives))
tx = self.__get_referred_transaction(tx)
if tx is None:
break
for (tx_id, directives) in reversed(tx_directives):
for directive in directives:
self.__apply(tx_id, user_id, directive)
return tx_last
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]
asset_id = transaction.events[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.events[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 transfer(self,
from_user_id,
to_user_id,
amount,
keypair_from=None,
keypair_mint=None):
tx = bbclib.BBcTransaction()
sorted_tuples = self.store.get_sorted_utxo_list(
from_user_id, tx.timestamp)
num_refs = 0
value = 0
for t in sorted_tuples:
num_refs += 1
value += t[0]
if value >= amount:
break
if value < amount:
raise ValueError("not enough fund")
spec_tuples = []
for i in range(num_refs):
ref_tx = self.store.get_tx(sorted_tuples[i][2][IDX_TX_ID])
ref = bbclib.BBcReference(
asset_group_id=self.mint_id,
transaction=tx,
ref_transaction=ref_tx,
event_index_in_ref=sorted_tuples[i][2][IDX_EVENT_IDX])
tx.add(reference=ref)
_, body = BaseAssetBody.from_serialized_data(
0, ref_tx.events[ref.event_index_in_ref].asset.asset_body)
found = False
for t in spec_tuples:
if body.is_same_spec(t[2], t[3]):
found = True
t[0] += sorted_tuples[i][0]
t[1] += body.value_specified
t[4].append(i)
break
if found == False:
spec_tuples.append([
sorted_tuples[i][0], body.value_specified,
body.time_of_origin, body.variation_specs, [i]
])
for i, t in enumerate(spec_tuples):
amount -= t[0]
if amount >= 0:
body = BaseAssetBody(BaseAssetBody.T_VALUE, t[1], t[2], t[3])
tx.add(event=self.make_event(t[4], to_user_id, body))
else:
idx = i
break
if amount < 0:
t = spec_tuples[idx]
v = (t[1] * (t[0] + amount)) // t[0]
body = BaseAssetBody(BaseAssetBody.T_VALUE, v, t[2], t[3])
while body.get_effective_value(tx.timestamp,
self.store.get_condition()) < t[0] + amount and \
body.value_specified < t[1]:
body.value_specified += 1
v = body.value_specified
tx.add(event=self.make_event(t[4], to_user_id, body))
body = BaseAssetBody(BaseAssetBody.T_CHANGE, t[1] - v, t[2], t[3])
tx.add(event=self.make_event(t[4], from_user_id, body))
for i in range(idx + 1, len(spec_tuples)):
t = spec_tuples[i]
body = BaseAssetBody(BaseAssetBody.T_CHANGE, t[1], t[2], t[3])
tx.add(event=self.make_event(t[4], from_user_id, body))
if keypair_from is None:
return tx
if keypair_mint is None:
self.app.gather_signatures(tx, destinations=[self.mint_id])
res = self.app.callback.synchronize()
if res[KeyType.status] < ESUCCESS:
raise RuntimeError(res[KeyType.reason].decode())
result = res[KeyType.result]
tx.add_signature(self.mint_id, signature=result[2])
return self.store.sign_and_insert(tx, from_user_id, keypair_from,
self.idPublickeyMap)
self.store.sign(tx, from_user_id, keypair_from)
return self.store.sign_and_insert(tx, self.mint_id, keypair_mint,
self.idPublickeyMap)
def search_transaction(self,
transaction_id=None,
asset_group_id=None,
asset_id=None,
user_id=None,
count=1,
db_num=0):
"""
Search transaction data
:param transaction_id:
:param asset_group_id:
:param asset_id:
:param user_id:
:param count:
:param idx:
:return:
"""
if transaction_id is not None:
txinfo = self.exec_sql(
db_num=db_num,
sql="SELECT * FROM transaction_table WHERE transaction_id = %s"
% self.db_adaptors[0].placeholder,
args=(transaction_id, ))
if len(txinfo) == 0:
return None, None
else:
sql = "SELECT * from asset_info_table WHERE "
conditions = list()
if asset_group_id is not None:
conditions.append("asset_group_id = %s " %
self.db_adaptors[0].placeholder)
if asset_id is not None:
conditions.append("asset_id = %s " %
self.db_adaptors[0].placeholder)
if user_id is not None:
conditions.append("user_id = %s " %
self.db_adaptors[0].placeholder)
sql += "AND ".join(conditions) + "ORDER BY id DESC"
if count > 0:
if count > 20:
count = 20
sql += " limit %d" % count
sql += ";"
args = list(
filter(lambda a: a is not None,
(asset_group_id, asset_id, user_id)))
ret = self.exec_sql(db_num=db_num, sql=sql, args=args)
txinfo = list()
for record in ret:
tx = self.exec_sql(
db_num=db_num,
sql=
"SELECT * FROM transaction_table WHERE transaction_id = %s"
% self.db_adaptors[0].placeholder,
args=(record[1], ))
if tx is not None and len(tx) == 1:
txinfo.append(tx[0])
result_txobj = dict()
result_asset_files = dict()
for txid, txdata in txinfo:
txobj = bbclib.BBcTransaction(deserialize=txdata)
result_txobj[txid] = txobj
for asset_group_id, asset_id, user_id, fileflag, filedigest in self.get_asset_info(
txobj):
if fileflag:
result_asset_files[asset_id] = self.get_in_storage(
asset_group_id, asset_id)
return result_txobj, result_asset_files