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-rw-r--r--packages/contracts/src/contracts/current/protocol/Exchange/MixinSignatureValidator.sol21
-rw-r--r--packages/contracts/src/contracts/current/protocol/Exchange/mixins/MSignatureValidator.sol11
-rw-r--r--packages/contracts/src/contracts/current/test/Whitelist/Whitelist.sol22
-rw-r--r--packages/contracts/src/contracts/current/utils/LibBytes/LibBytes.sol4
-rw-r--r--packages/contracts/src/utils/constants.ts1
-rw-r--r--packages/contracts/test/exchange/transactions.ts4
-rw-r--r--packages/contracts/test/libraries/lib_bytes.ts7
7 files changed, 35 insertions, 35 deletions
diff --git a/packages/contracts/src/contracts/current/protocol/Exchange/MixinSignatureValidator.sol b/packages/contracts/src/contracts/current/protocol/Exchange/MixinSignatureValidator.sol
index 1fb87c148..423f306cb 100644
--- a/packages/contracts/src/contracts/current/protocol/Exchange/MixinSignatureValidator.sol
+++ b/packages/contracts/src/contracts/current/protocol/Exchange/MixinSignatureValidator.sol
@@ -31,10 +31,10 @@ contract MixinSignatureValidator is
{
// Mapping of hash => signer => signed
- mapping(bytes32 => mapping(address => bool)) preSigned;
+ mapping (bytes32 => mapping (address => bool)) preSigned;
// Mapping of signer => validator => approved
- mapping(address => mapping (address => bool)) allowedValidators;
+ mapping (address => mapping (address => bool)) allowedValidators;
/// @dev Approves a hash on-chain using any valid signature type.
/// After presigning a hash, the preSign signature type will become valid for that hash and signer.
@@ -141,21 +141,6 @@ contract MixinSignatureValidator is
isValid = signer == recovered;
return isValid;
- // Implicitly signed by signer of Ethereum transaction.
- // This is useful when initiating a call from a contract that might
- // otherwise require multiple signatures.
- // Example: Contract A calls Exchange.fillOrder using `executeTransaction`.
- // This would normally require the user to sign both an Ethereum transaction
- // and a 0x transaction. By using the TxOrigin signature type, the signature
- // for the Ethereum transaction will encompass both signatures.
- } else if (signatureType == SignatureType.TxOrigin) {
- require(
- signature.length == 1,
- INVALID_SIGNATURE_LENGTH
- );
- isValid = signer == tx.origin;
- return isValid;
-
// Implicitly signed by caller.
// The signer has initiated the call. In the case of non-contract
// accounts it means the transaction itself was signed.
@@ -188,7 +173,7 @@ contract MixinSignatureValidator is
// If used with an order, the maker of the order can still be an EOA.
// A signature using this type should be encoded as:
// | Offset | Length | Contents |
- // | 0x00 | 1 | Signature type is always "\x07" |
+ // | 0x00 | 1 | Signature type is always "\x06" |
// | 0x01 | 20 | Address of validator contract |
// | 0x15 | ** | Signature to validate |
} else if (signatureType == SignatureType.Validator) {
diff --git a/packages/contracts/src/contracts/current/protocol/Exchange/mixins/MSignatureValidator.sol b/packages/contracts/src/contracts/current/protocol/Exchange/mixins/MSignatureValidator.sol
index a13f4524b..57600f508 100644
--- a/packages/contracts/src/contracts/current/protocol/Exchange/mixins/MSignatureValidator.sol
+++ b/packages/contracts/src/contracts/current/protocol/Exchange/mixins/MSignatureValidator.sol
@@ -29,12 +29,11 @@ contract MSignatureValidator is
Invalid, // 0x01
EIP712, // 0x02
Ecrecover, // 0x03
- TxOrigin, // 0x04
- Caller, // 0x05
- Signer, // 0x06
- Validator, // 0x07
- PreSigned, // 0x08
- Trezor // 0x09
+ Caller, // 0x04
+ Signer, // 0x05
+ Validator, // 0x06
+ PreSigned, // 0x07
+ Trezor // 0x08
}
/// @dev Verifies that a signature is valid.
diff --git a/packages/contracts/src/contracts/current/test/Whitelist/Whitelist.sol b/packages/contracts/src/contracts/current/test/Whitelist/Whitelist.sol
index 4a2e9a931..3bd3179e5 100644
--- a/packages/contracts/src/contracts/current/test/Whitelist/Whitelist.sol
+++ b/packages/contracts/src/contracts/current/test/Whitelist/Whitelist.sol
@@ -35,13 +35,14 @@ contract Whitelist is
// Exchange contract.
IExchange EXCHANGE;
- // TxOrigin signature type is the 5th value in enum SignatureType and has a length of 1.
- bytes constant TX_ORIGIN_SIGNATURE = "\x04";
+ byte constant VALIDATOR_SIGNATURE_BYTE = "\x06";
+ bytes TX_ORIGIN_SIGNATURE;
constructor (address _exchange)
public
{
EXCHANGE = IExchange(_exchange);
+ TX_ORIGIN_SIGNATURE = abi.encodePacked(VALIDATOR_SIGNATURE_BYTE, address(this));
}
/// @dev Adds or removes an address from the whitelist.
@@ -102,4 +103,19 @@ contract Whitelist is
TX_ORIGIN_SIGNATURE
);
}
-} \ No newline at end of file
+
+ /// @dev Verifies signer is same as signer of current Ethereum transaction.
+ /// @param signer Address that should have signed the given hash.
+ /// @param signature Proof of signing.
+ /// @return Validity of order signature.
+ function isValidSignature(
+ bytes32 hash,
+ address signer,
+ bytes signature)
+ external
+ view
+ returns (bool isValid)
+ {
+ return signer == tx.origin;
+ }
+}
diff --git a/packages/contracts/src/contracts/current/utils/LibBytes/LibBytes.sol b/packages/contracts/src/contracts/current/utils/LibBytes/LibBytes.sol
index 527f7a7a9..5c4fdbb23 100644
--- a/packages/contracts/src/contracts/current/utils/LibBytes/LibBytes.sol
+++ b/packages/contracts/src/contracts/current/utils/LibBytes/LibBytes.sol
@@ -41,10 +41,6 @@ contract LibBytes {
returns (bytes memory)
{
require(
- len > 0,
- GT_ZERO_LENGTH_REQUIRED
- );
- require(
b.length >= index + len,
INDEX_OUT_OF_BOUNDS
);
diff --git a/packages/contracts/src/utils/constants.ts b/packages/contracts/src/utils/constants.ts
index 7a0e26a48..9b0b92545 100644
--- a/packages/contracts/src/utils/constants.ts
+++ b/packages/contracts/src/utils/constants.ts
@@ -28,6 +28,7 @@ export const constants = {
DUMMY_TOKEN_SYMBOL: '',
DUMMY_TOKEN_DECIMALS: new BigNumber(18),
DUMMY_TOKEN_TOTAL_SUPPLY: new BigNumber(0),
+ NULL_BYTES: '0x',
NUM_DUMMY_ERC20_TO_DEPLOY: 3,
NUM_DUMMY_ERC721_TO_DEPLOY: 1,
NUM_ERC721_TOKENS_TO_MINT: 2,
diff --git a/packages/contracts/test/exchange/transactions.ts b/packages/contracts/test/exchange/transactions.ts
index fe6df2f75..294e3aae9 100644
--- a/packages/contracts/test/exchange/transactions.ts
+++ b/packages/contracts/test/exchange/transactions.ts
@@ -218,6 +218,10 @@ describe('Exchange transactions', () => {
txDefaults,
exchange.address,
);
+ const isApproved = true;
+ await exchange.approveSignatureValidator.sendTransactionAsync(whitelist.address, isApproved, {
+ from: takerAddress,
+ });
const defaultOrderParams = {
...constants.STATIC_ORDER_PARAMS,
senderAddress: whitelist.address,
diff --git a/packages/contracts/test/libraries/lib_bytes.ts b/packages/contracts/test/libraries/lib_bytes.ts
index ac654e037..c85cee5e3 100644
--- a/packages/contracts/test/libraries/lib_bytes.ts
+++ b/packages/contracts/test/libraries/lib_bytes.ts
@@ -62,12 +62,11 @@ describe('LibBytes', () => {
describe('deepCopyBytes', () => {
const byteArrayLongerThan32BytesLen = (byteArrayLongerThan32Bytes.length - 2) / 2;
- it('should throw if length of copy is 0', async () => {
+ it('should return a byte array of length 0 if len is 0', async () => {
const index = new BigNumber(0);
const len = new BigNumber(0);
- return expect(
- libBytes.publicDeepCopyBytes.callAsync(byteArrayLongerThan32Bytes, index, len),
- ).to.be.rejectedWith(constants.REVERT);
+ const copy = await libBytes.publicDeepCopyBytes.callAsync(byteArrayLongerThan32Bytes, index, len);
+ expect(copy).to.equal(constants.NULL_BYTES);
});
it('should throw if start index + length to copy is greater than length of byte array', async () => {