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Create private functions for encoding orders/transactions with their hash to be passed into EIP1271 compliant contract

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This commit is contained in:
Amir Bandeali 2019-09-03 19:01:33 -07:00
parent 49725c8c33
commit e5706606a0
1 changed files with 38 additions and 20 deletions
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58
contracts/exchange/contracts/src/MixinSignatureValidator.sol
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@ -229,11 +229,7 @@ contract MixinSignatureValidator is
if (signatureType == SignatureType.Validator) {
// The entire order is verified by a validator contract.
isValid = _validateBytesWithValidator(
abi.encodeWithSelector(
IEIP1271Data(address(0)).OrderWithHash.selector,
order,
orderHash
),
_encodeEIP1271OrderWithHash(order, orderHash),
orderHash,
signerAddress,
signature
@ -241,11 +237,7 @@ contract MixinSignatureValidator is
} else if (signatureType == SignatureType.EIP1271Wallet) {
// The entire order is verified by a wallet contract.
isValid = _validateBytesWithWallet(
abi.encodeWithSelector(
IEIP1271Data(address(0)).OrderWithHash.selector,
order,
orderHash
),
_encodeEIP1271OrderWithHash(order, orderHash),
signerAddress,
signature
);
@ -285,11 +277,7 @@ contract MixinSignatureValidator is
if (signatureType == SignatureType.Validator) {
// The entire transaction is verified by a validator contract.
isValid = _validateBytesWithValidator(
abi.encodeWithSelector(
IEIP1271Data(address(0)).ZeroExTransactionWithHash.selector,
transaction,
transactionHash
),
_encodeEIP1271TransactionWithHash(transaction, transactionHash),
transactionHash,
signerAddress,
signature
@ -297,11 +285,7 @@ contract MixinSignatureValidator is
} else if (signatureType == SignatureType.EIP1271Wallet) {
// The entire transaction is verified by a wallet contract.
isValid = _validateBytesWithWallet(
abi.encodeWithSelector(
IEIP1271Data(address(0)).ZeroExTransactionWithHash.selector,
transaction,
transactionHash
),
_encodeEIP1271TransactionWithHash(transaction, transactionHash),
signerAddress,
signature
);
@ -481,6 +465,40 @@ contract MixinSignatureValidator is
return signatureType;
}
/// @dev ABI encodes an order and hash with a selector to be passed into
/// an EIP1271 compliant `isValidSignature` function.
function _encodeEIP1271OrderWithHash(
LibOrder.Order memory order,
bytes32 orderHash
)
private
pure
returns (bytes memory encoded)
{
return abi.encodeWithSelector(
IEIP1271Data(address(0)).OrderWithHash.selector,
order,
orderHash
);
}
/// @dev ABI encodes a transaction and hash with a selector to be passed into
/// an EIP1271 compliant `isValidSignature` function.
function _encodeEIP1271TransactionWithHash(
LibZeroExTransaction.ZeroExTransaction memory transaction,
bytes32 transactionHash
)
private
pure
returns (bytes memory encoded)
{
return abi.encodeWithSelector(
IEIP1271Data(address(0)).ZeroExTransactionWithHash.selector,
transaction,
transactionHash
);
}
/// @dev Verifies a hash and signature using logic defined by Wallet contract.
/// @param hash Any 32 byte hash.
/// @param walletAddress Address that should have signed the given hash