def unpack(self, data):
"""Unpack data into transaction object
Args:
data (bytes): packed binary data
Returns:
bool: True if successful
"""
ptr = 0
data_size = len(data)
try:
ptr, self.asset_group_id = bbclib_utils.get_bigint(ptr, data)
ptr, pt_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
self.pointers = list()
for i in range(pt_num):
ptr, size = bbclib_utils.get_n_byte_int(ptr, 2, data)
ptr, ptdata = bbclib_utils.get_n_bytes(ptr, size, data)
if ptr >= data_size:
return False
pt = BBcPointer()
if not pt.unpack(ptdata):
return False
self.pointers.append(pt)
self.asset = None
ptr, astsize = bbclib_utils.get_n_byte_int(ptr, 4, data)
if astsize > 0:
self.asset = BBcAsset(id_length=self.id_length)
ptr, astdata = bbclib_utils.get_n_bytes(ptr, astsize, data)
if not self.asset.unpack(astdata):
return False
except:
return False
return True
def unpack(self, data):
"""Unpack into this object
Args:
data (bytes): packed binary data
Returns:
bool: True if successful
"""
ptr = 0
try:
ptr, self.asset_id = bbclib_utils.get_bigint(ptr, data)
ptr, self.user_id = bbclib_utils.get_bigint(ptr, data)
ptr, noncelen = bbclib_utils.get_n_byte_int(ptr, 2, data)
ptr, self.nonce = bbclib_utils.get_n_bytes(ptr, noncelen, data)
ptr, self.asset_file_size = bbclib_utils.get_n_byte_int(
ptr, 4, data)
if self.asset_file_size > 0:
ptr, self.asset_file_digest = bbclib_utils.get_bigint(
ptr, data)
else:
self.asset_file_digest = None
ptr, dict_flag = bbclib_utils.get_n_byte_int(ptr, 2, data)
if dict_flag != 1:
ptr, self.asset_body_size = bbclib_utils.get_n_byte_int(
ptr, 2, data)
if self.asset_body_size > 0:
ptr, self.asset_body = bbclib_utils.get_n_bytes(
ptr, self.asset_body_size, data)
else:
ptr, sz = bbclib_utils.get_n_byte_int(ptr, 2, data)
ptr, astbdy = bbclib_utils.get_n_bytes(ptr, sz, data)
self.asset_body = msgpack.loads(astbdy)
self.asset_body_size = len(self.asset_body)
except:
traceback.print_exc()
return False
return True
def unpack(self, data):
"""Unpack into this object
Args:
data (bytes): packed binary data
Returns:
bool: True if successful
"""
ptr = 0
try:
ptr, self.key_type = bbclib_utils.get_n_byte_int(ptr, 4, data)
if self.key_type == KeyType.NOT_INITIALIZED:
return True
ptr, pubkey_len_bit = bbclib_utils.get_n_byte_int(ptr, 4, data)
pubkey_len = int(pubkey_len_bit / 8)
ptr, pubkey = bbclib_utils.get_n_bytes(ptr, pubkey_len, data)
ptr, sig_len_bit = bbclib_utils.get_n_byte_int(ptr, 4, data)
sig_len = int(sig_len_bit / 8)
ptr, signature = bbclib_utils.get_n_bytes(ptr, sig_len, data)
self.add(signature=signature, pubkey=pubkey)
except:
return False
return True
def unpack(self, data):
"""Unpack into this object
Args:
data (bytes): packed binary data
Returns:
bool: True if successful
"""
ptr = 0
data_size = len(data)
try:
ptr, self.asset_group_id = bbclib_utils.get_bigint(ptr, data)
ptr, ref_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
self.reference_indices = []
for i in range(ref_num):
ptr, idx = bbclib_utils.get_n_byte_int(ptr, 2, data)
self.reference_indices.append(idx)
if ptr >= data_size:
return False
ptr, appr_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
self.mandatory_approvers = []
for i in range(appr_num):
ptr, appr = bbclib_utils.get_bigint(ptr, data)
self.mandatory_approvers.append(appr)
if ptr >= data_size:
return False
ptr, self.option_approver_num_numerator = bbclib_utils.get_n_byte_int(
ptr, 2, data)
ptr, self.option_approver_num_denominator = bbclib_utils.get_n_byte_int(
ptr, 2, data)
self.option_approvers = []
for i in range(self.option_approver_num_denominator):
ptr, appr = bbclib_utils.get_bigint(ptr, data)
self.option_approvers.append(appr)
if ptr >= data_size:
return False
ptr, astsize = bbclib_utils.get_n_byte_int(ptr, 4, data)
ptr, astdata = bbclib_utils.get_n_bytes(ptr, astsize, data)
self.asset = BBcAsset(id_length=self.id_length)
self.asset.unpack(astdata)
except:
return False
return True
def unpack(self, data):
"""Unpack into this object
Args:
data (bytes): packed binary data
Returns:
bool: True if successful
"""
self.transaction_data = data[:]
ptr = 0
data_size = len(data)
try:
ptr, self.version = bbclib_utils.get_n_byte_int(ptr, 4, data)
ptr, self.timestamp = bbclib_utils.get_n_byte_int(ptr, 8, data)
if self.version != 0:
ptr, self.id_length = bbclib_utils.get_n_byte_int(ptr, 2, data)
ptr, evt_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
self.events = []
for i in range(evt_num):
ptr, size = bbclib_utils.get_n_byte_int(ptr, 4, data)
ptr, evtdata = bbclib_utils.get_n_bytes(ptr, size, data)
evt = BBcEvent(id_length=self.id_length)
if not evt.unpack(evtdata):
return False
self.events.append(evt)
if ptr >= data_size:
return False
self.asset_group_ids[evt.asset.asset_id] = evt.asset_group_id
ptr, ref_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
self.references = []
for i in range(ref_num):
ptr, size = bbclib_utils.get_n_byte_int(ptr, 4, data)
ptr, refdata = bbclib_utils.get_n_bytes(ptr, size, data)
refe = BBcReference(None, self, id_length=self.id_length)
if not refe.unpack(refdata):
return False
self.references.append(refe)
if ptr >= data_size:
return False
ptr, rtn_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
self.relations = []
for i in range(rtn_num):
ptr, size = bbclib_utils.get_n_byte_int(ptr, 4, data)
ptr, rtndata = bbclib_utils.get_n_bytes(ptr, size, data)
rtn = BBcRelation(id_length=self.id_length)
if not rtn.unpack(rtndata):
return False
self.relations.append(rtn)
if ptr >= data_size:
return False
self.asset_group_ids[rtn.asset.asset_id] = rtn.asset_group_id
ptr, witness_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
if witness_num == 0:
self.witness = None
else:
ptr, size = bbclib_utils.get_n_byte_int(ptr, 4, data)
ptr, witnessdata = bbclib_utils.get_n_bytes(ptr, size, data)
self.witness = BBcWitness(id_length=self.id_length)
self.witness.transaction = self
if not self.witness.unpack(witnessdata):
return False
ptr, cross_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
if cross_num == 0:
self.cross_ref = None
else:
ptr, size = bbclib_utils.get_n_byte_int(ptr, 4, data)
ptr, crossdata = bbclib_utils.get_n_bytes(ptr, size, data)
self.cross_ref = BBcCrossRef()
if not self.cross_ref.unpack(crossdata):
return False
ptr, sig_num = bbclib_utils.get_n_byte_int(ptr, 2, data)
self.signatures = []
for i in range(sig_num):
ptr, size = bbclib_utils.get_n_byte_int(ptr, 4, data)
sig = BBcSignature()
if size > 4:
ptr, sigdata = bbclib_utils.get_n_bytes(ptr, size, data)
if not sig.unpack(sigdata):
return False
self.signatures.append(sig)
if ptr > data_size:
return False
self.digest()
except Exception as e:
print("Transaction data unpack: %s" % e)
print(traceback.format_exc())
return False
return True