def get_signature_vrs(raw):
try:
hashed_raw = sha256(raw)
wallet = get_aquarius_wallet()
keys_pk = keys.PrivateKey(wallet.key)
prefix = "\x19Ethereum Signed Message:\n32"
signable_hash = Web3.solidityKeccak(
["bytes", "bytes"],
[Web3.toBytes(text=prefix),
Web3.toBytes(hashed_raw.digest())],
)
signed = keys.ecdsa_sign(message_hash=signable_hash,
private_key=keys_pk)
values = {
"hash": "0x" + hashed_raw.hexdigest(),
"publicKey": wallet.address
}
values["v"] = (signed.v + 27) if signed.v <= 1 else signed.v
values["r"] = (Web3.toHex(Web3.toBytes(signed.r).rjust(32, b"\0")), )
values["s"] = (Web3.toHex(Web3.toBytes(signed.s).rjust(32, b"\0")), )
except AquariusPrivateKeyException:
values = {"hash": "", "publicKey": "", "r": "", "s": "", "v": ""}
return values
def generate_multi_value_hash(types: List[str], values: List[str]) -> HexBytes:
"""
Return the hash of the given list of values.
This is equivalent to packing and hashing values in a solidity smart contract
hence the use of `soliditySha3`.
:param types: list of solidity types expressed as strings
:param values: list of values matching the `types` list
:return: bytes
"""
assert len(types) == len(values)
return Web3.solidityKeccak(types, values)
def get_signature_bytes(raw):
try:
wallet = get_aquarius_wallet()
keys_pk = keys.PrivateKey(wallet.key)
message_hash = Web3.solidityKeccak(
["bytes"],
[Web3.toBytes(text=raw)],
)
prefix = "\x19Ethereum Signed Message:\n32"
signable_hash = Web3.solidityKeccak(
["bytes", "bytes"],
[Web3.toBytes(text=prefix),
Web3.toBytes(message_hash)])
signed = keys.ecdsa_sign(message_hash=signable_hash,
private_key=keys_pk)
v = str(Web3.toHex(Web3.toBytes(signed.v)))
r = str(Web3.toHex(Web3.toBytes(signed.r).rjust(32, b"\0")))
s = str(Web3.toHex(Web3.toBytes(signed.s).rjust(32, b"\0")))
signature = "0x" + r[2:] + s[2:] + v[2:]
except AquariusPrivateKeyException:
signature = None
return signature
def test_order_started(events_object, client, base_ddo_url):
web3 = events_object._web3 # get_web3()
block = web3.eth.block_number
_ddo = new_ddo(test_account1, web3, f"dt.{block}")
did = _ddo.id
_, dt_contract, erc20_address = send_create_update_tx(
"create", _ddo, bytes([2]), test_account1)
events_object.process_current_blocks()
token_contract = web3.eth.contract(
abi=ERC20Template.abi, address=web3.toChecksumAddress(erc20_address))
token_contract.functions.mint(
web3.toChecksumAddress(test_account3.address),
web3.toWei(10, "ether")).transact({"from": test_account1.address})
# mock provider fees
provider_wallet = get_aquarius_wallet()
provider_fee_amount = 0
provider_data = json.dumps({"timeout": 0}, separators=(",", ":"))
provider_fee_address = provider_wallet.address
provider_fee_token = "0x0000000000000000000000000000000000000000"
message_hash = Web3.solidityKeccak(
["bytes", "address", "address", "uint256", "uint256"],
[
Web3.toHex(Web3.toBytes(text=provider_data)),
provider_fee_address,
provider_fee_token,
provider_fee_amount,
0,
],
)
pk = keys.PrivateKey(provider_wallet.key)
prefix = "\x19Ethereum Signed Message:\n32"
signable_hash = Web3.solidityKeccak(
["bytes", "bytes"],
[Web3.toBytes(text=prefix),
Web3.toBytes(message_hash)])
signed = keys.ecdsa_sign(message_hash=signable_hash, private_key=pk)
provider_fee = {
"providerFeeAddress": web3.toChecksumAddress(provider_fee_address),
"providerFeeToken": web3.toChecksumAddress(provider_fee_token),
"providerFeeAmount": provider_fee_amount,
"providerData": Web3.toHex(Web3.toBytes(text=provider_data)),
# make it compatible with last openzepellin https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1622
"v": (signed.v + 27) if signed.v <= 1 else signed.v,
"r": Web3.toHex(Web3.toBytes(signed.r).rjust(32, b"\0")),
"s": Web3.toHex(Web3.toBytes(signed.s).rjust(32, b"\0")),
"validUntil": 0,
}
txn = token_contract.functions.startOrder(
web3.toChecksumAddress(test_account3.address),
1,
(
web3.toChecksumAddress(provider_fee["providerFeeAddress"]),
web3.toChecksumAddress(provider_fee["providerFeeToken"]),
provider_fee["providerFeeAmount"],
provider_fee["v"],
provider_fee["r"],
provider_fee["s"],
provider_fee["validUntil"],
provider_fee["providerData"],
),
(
"0x0000000000000000000000000000000000000000",
"0x0000000000000000000000000000000000000000",
0,
),
).transact({"from": test_account3.address})
web3.eth.wait_for_transaction_receipt(txn)
events_object.process_current_blocks()
published_ddo = get_ddo(client, base_ddo_url, did)
assert published_ddo["stats"]["orders"] == 1