def test_smart_contract(self): EXPECTED_DIGEST = "9ea094e71cbe846192429db3d7e8b02b649730c8b525c3268eb9ff5633c27130" EXPECTED_PAYLOAD = \ "a1604000532398dd883d1990f7dad3fde6a53a53347afc2680a04748f7f15ad03cadc4d400c103e8c2000f424080" \ "e6672a9d98da667e5dc25b2bca8acf9644a7ac0797f01cb5968abf39de011df2066c61756e636802676f00000000" \ "000000000418c2a33af8bd2cba7fa714a840a308a217aa4483880b1ef14b4fdffe08ab956e3f4b921cec33be7c25" \ "8cfd7025a2b9a942770e5b17758bcc4961bbdc75a0251c" # build the payload bytes for the transaction with mock.patch('random.getrandbits') as mock_counter: mock_counter.side_effect = [0] payload = Transaction() payload.from_address = IDENTITIES[0] payload.add_signer(IDENTITIES[0]) payload.charge_rate = 1000 payload.charge_limit = 1000000 payload.target_contract(Address(IDENTITIES[4]), BitVector()) payload.action = 'launch' payload.data = 'go'.encode('ascii') # sign the final transaction payload.sign(ENTITIES[0]) transaction_bytes = transaction.encode_transaction(payload) self.assertIsExpectedTx(payload, transaction_bytes, EXPECTED_PAYLOAD) # attempt to decode a transaction from the generated bytes buffer = io.BytesIO(transaction_bytes) success, tx = transaction.decode_transaction(buffer) self.assertTrue(success) self.assertTxAreEqual(payload, tx) # Check payload digest self.assertEqual(sha256_hex(payload.encode_payload()), EXPECTED_DIGEST)
def test_synergetic_data_submission(self): EXPECTED_PAYLOAD = "a120c0532398dd883d1990f7dad3fde6a53a53347afc2680a04748f7f15ad03cadc4d4c1271001c3000000e8d4a5100080da2e9c3191e3768d1c59ea43f6318367ed9b21e6974f46a60d0dd8976740af6de6672a9d98da667e5dc25b2bca8acf9644a7ac0797f01cb5968abf39de011df204646174610f7b2276616c7565223a20313233347d0418c2a33af8bd2cba7fa714a840a308a217aa4483880b1ef14b4fdffe08ab956e3f4b921cec33be7c258cfd7025a2b9a942770e5b17758bcc4961bbdc75a0251c" # build the payload bytes for the transaction payload = Transaction() payload.from_address = IDENTITIES[0] payload.valid_until = 10000 payload.target_contract(IDENTITIES[3], IDENTITIES[4], BitVector()) payload.charge_rate = 1 payload.charge_limit = 1000000000000 payload.action = 'data' payload.synergetic_data_submission = True payload.data = json.dumps({'value': 1234}).encode('ascii') payload.add_signer(IDENTITIES[0]) # sign the final transaction transaction_bytes = encode_transaction(payload, [ENTITIES[0]]) self.assertIsExpectedTx(payload, transaction_bytes, EXPECTED_PAYLOAD) # attempt to decode a transaction from the generated bytes buffer = io.BytesIO(transaction_bytes) success, tx = decode_transaction(buffer) self.assertTrue(success) self.assertTxAreEqual(payload, tx)
def submit_data(self, entity: Entity, digest: Address, **kwargs): # build up the basic transaction information tx = Transaction() tx.from_address = Address(entity) tx.valid_until = 10000 tx.target_contract(digest, Address(entity), BitVector()) tx.charge_rate = 1 tx.charge_limit = 1000000000000 tx.action = 'data' tx.synergetic_data_submission = True tx.data = self._encode_json(dict(**kwargs)) tx.add_signer(entity) # encode the transaction encoded_tx = encode_transaction(tx, [entity]) # submit the transaction to the catch-all endpoint return self._post_tx_json(encoded_tx, None)
def action(self, contract_digest: Address, contract_owner: Address, action: str, fee: int, signers: EntityList, *args): shard_mask = BitVector() # build up the basic transaction information tx = Transaction() tx.from_address = Address(contract_owner) tx.valid_until = 10000 tx.charge_rate = 1 tx.charge_limit = int(fee) tx.target_contract(contract_digest, contract_owner, shard_mask) tx.action = str(action) tx.data = self._encode_msgpack_payload(*args) for signer in signers: tx.add_signer(signer) encoded_tx = encode_transaction(tx, signers) return self._post_tx_json(encoded_tx, None)
def test_synergetic_data_submission(self): EXPECTED_DIGEST = "9397fd490b60a394ea0af5526435608a1e853e2cb6b09bc7cafec8f6a0aa2cf6" EXPECTED_PAYLOAD = \ "a140c000532398dd883d1990f7dad3fde6a53a53347afc2680a04748f7f15ad03cadc4d4c1271001c3000000e8d4" \ "a5100080da2e9c3191e3768d1c59ea43f6318367ed9b21e6974f46a60d0dd8976740af6de6672a9d98da667e5dc2" \ "5b2bca8acf9644a7ac0797f01cb5968abf39de011df204646174610f7b2276616c7565223a20313233347d000000" \ "00000000000418c2a33af8bd2cba7fa714a840a308a217aa4483880b1ef14b4fdffe08ab956e3f4b921cec33be7c" \ "258cfd7025a2b9a942770e5b17758bcc4961bbdc75a0251c" # build the payload bytes for the transaction with mock.patch('random.getrandbits') as mock_counter: mock_counter.side_effect = [0] payload = Transaction() payload.from_address = IDENTITIES[0] payload.valid_until = 10000 payload.target_contract(IDENTITIES[3], IDENTITIES[4], BitVector()) payload.charge_rate = 1 payload.charge_limit = 1000000000000 payload.action = 'data' payload.synergetic_data_submission = True payload.data = json.dumps({'value': 1234}).encode('ascii') payload.add_signer(IDENTITIES[0]) # sign the final transaction transaction_bytes = encode_transaction(payload, [ENTITIES[0]]) self.assertIsExpectedTx(payload, transaction_bytes, EXPECTED_PAYLOAD) # attempt to decode a transaction from the generated bytes buffer = io.BytesIO(transaction_bytes) success, tx = decode_transaction(buffer) self.assertTrue(success) self.assertTxAreEqual(payload, tx) # Check payload digest buffer = io.BytesIO() encode_payload(buffer, payload) self.assertEqual(sha256_hash(buffer.getvalue()), EXPECTED_DIGEST)
def test_smart_contract(self): EXPECTED_DIGEST = "032a72029ae2ac5cdbf9e07cf57d9ecab97a6de34ed5cdf785d1d98037cd5dcd" EXPECTED_PAYLOAD = \ "a1404000532398dd883d1990f7dad3fde6a53a53347afc2680a04748f7f15ad03cadc4d400c103e8c2000f424080" \ "da2e9c3191e3768d1c59ea43f6318367ed9b21e6974f46a60d0dd8976740af6de6672a9d98da667e5dc25b2bca8a" \ "cf9644a7ac0797f01cb5968abf39de011df2066c61756e636802676f00000000000000000418c2a33af8bd2cba7f" \ "a714a840a308a217aa4483880b1ef14b4fdffe08ab956e3f4b921cec33be7c258cfd7025a2b9a942770e5b17758b" \ "cc4961bbdc75a0251c" # build the payload bytes for the transaction with mock.patch('random.getrandbits') as mock_counter: mock_counter.side_effect = [0] payload = Transaction() payload.from_address = IDENTITIES[0] payload.add_signer(IDENTITIES[0]) payload.charge_rate = 1000 payload.charge_limit = 1000000 payload.target_contract(IDENTITIES[3], IDENTITIES[4], BitVector()) payload.action = 'launch' payload.data = 'go'.encode('ascii') # sign the final transaction transaction_bytes = encode_transaction(payload, [ENTITIES[0]]) self.assertIsExpectedTx(payload, transaction_bytes, EXPECTED_PAYLOAD) # attempt to decode a transaction from the generated bytes buffer = io.BytesIO(transaction_bytes) success, tx = decode_transaction(buffer) self.assertTrue(success) self.assertTxAreEqual(payload, tx) # Check payload digest buffer = io.BytesIO() encode_payload(buffer, payload) self.assertEqual(sha256_hash(buffer.getvalue()), EXPECTED_DIGEST)
def test_smart_contract(self): EXPECTED_PAYLOAD = "a12040532398dd883d1990f7dad3fde6a53a53347afc2680a04748f7f15ad03cadc4d400c103e8c2000f424080da2e9c3191e3768d1c59ea43f6318367ed9b21e6974f46a60d0dd8976740af6de6672a9d98da667e5dc25b2bca8acf9644a7ac0797f01cb5968abf39de011df2066c61756e636802676f0418c2a33af8bd2cba7fa714a840a308a217aa4483880b1ef14b4fdffe08ab956e3f4b921cec33be7c258cfd7025a2b9a942770e5b17758bcc4961bbdc75a0251c" # build the payload bytes for the transaction payload = Transaction() payload.from_address = IDENTITIES[0] payload.add_signer(IDENTITIES[0]) payload.charge_rate = 1000 payload.charge_limit = 1000000 payload.target_contract(IDENTITIES[3], IDENTITIES[4], BitVector()) payload.action = 'launch' payload.data = 'go'.encode('ascii') # sign the final transaction transaction_bytes = encode_transaction(payload, [ENTITIES[0]]) self.assertIsExpectedTx(payload, transaction_bytes, EXPECTED_PAYLOAD) # attempt to decode a transaction from the generated bytes buffer = io.BytesIO(transaction_bytes) success, tx = decode_transaction(buffer) self.assertTrue(success) self.assertTxAreEqual(payload, tx)
def decode_transaction(stream: io.BytesIO) -> (bool, Transaction): # ensure the at the magic is correctly configured magic = stream.read(1)[0] if magic != MAGIC: raise RuntimeError('Unable to parse transaction from stream, invalid magic') # extract the header bytes header = stream.read(2) # parse the header types version = (header[0] & 0xE0) >> 5 charge_unit_flag = bool((header[0] & 0x08) >> 3) transfer_flag = bool((header[0] & 0x04) >> 2) multiple_transfers_flag = bool((header[0] & 0x02) >> 1) valid_from_flag = bool((header[0] & 0x01)) contract_type = (header[1] & 0xC0) >> 6 signature_count_minus1 = (header[1] & 0x3F) num_signatures = signature_count_minus1 + 1 # ensure that the version is correct if version != VERSION: raise RuntimeError('Unable to parse transaction from stream, incompatible version') # Ready empty reserved byte stream.read(1) tx = Transaction() # decode the address from the thread tx.from_address = address.decode(stream) if transfer_flag: # determine the number of transfers that are present in the transaction if multiple_transfers_flag: transfer_count = integer.decode(stream) + 2 else: transfer_count = 1 for n in range(transfer_count): to = address.decode(stream) amount = integer.decode(stream) tx.add_transfer(to, amount) if valid_from_flag: tx.valid_from = integer.decode(stream) tx.valid_until = integer.decode(stream) tx.charge_rate = integer.decode(stream) assert not charge_unit_flag, "Currently the charge unit field is not supported" tx.charge_limit = integer.decode(stream) if contract_type != NO_CONTRACT: contract_header = int(stream.read(1)[0]) wildcard = bool(contract_header & 0x80) shard_mask = BitVector() if not wildcard: extended_shard_mask_flag = bool(contract_header & 0x40) if not extended_shard_mask_flag: if contract_header & 0x10: mask = 0xf bit_size = 4 else: mask = 0x3 bit_size = 2 # extract the shard mask from the header shard_mask = BitVector.from_bytes(bytes([contract_header & mask]), bit_size) else: bit_length = 1 << ((contract_header & 0x3F) + 3) byte_length = bit_length // 8 assert (bit_length % 8) == 0 # this should be enforced as part of the spec # extract the mask from the next N bytes shard_mask = BitVector.from_bytes(stream.read(byte_length), bit_length) if contract_type == SMART_CONTRACT or contract_type == SYNERGETIC: contract_digest = address.decode(stream) contract_address = address.decode(stream) tx.target_contract(contract_digest, contract_address, shard_mask) elif contract_type == CHAIN_CODE: encoded_chain_code_name = bytearray.decode(stream) tx.target_chain_code(encoded_chain_code_name.decode('ascii'), shard_mask) else: # this is mostly a guard against a desync between this function and `_map_contract_mode` raise RuntimeError("Unhandled contract type") tx.action = bytearray.decode(stream).decode('ascii') tx.data = bytearray.decode(stream) # Read counter value tx.counter = struct.unpack('<Q', stream.read(8))[0] if signature_count_minus1 == 0x3F: additional_signatures = integer.decode(stream) num_signatures += additional_signatures # extract all the signing public keys from the stream public_keys = [identity.decode(stream) for _ in range(num_signatures)] # extract full copy of the payload payload_bytes = stream.getvalue()[:stream.tell()] verified = [] for ident in public_keys: # for n in range(num_signatures): # extract the signature from the stream signature = bytearray.decode(stream) # verify if this signature is correct verified.append(ident.verify(payload_bytes, signature)) # build a metadata object to store in the tx tx._signers[ident] = { 'signature': signature, 'verified': verified[-1], } return all(verified), tx