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author | Fabio Berger <me@fabioberger.com> | 2018-07-02 17:12:01 +0800 |
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committer | Fabio Berger <me@fabioberger.com> | 2018-07-02 17:12:01 +0800 |
commit | de9f0732a09893f035ce8a7e8e01fa1141882a3a (patch) | |
tree | 63d1f0bbc6f9d65576e5d12b379378700eb88567 /packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol | |
parent | 20acdbf6c3ba6a62e87a9a496021cb6482c0c03a (diff) | |
parent | b9b00e10d39c3c84bc72892ef37f1313e904414d (diff) | |
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Merge branch 'v2-prototype' into fix/five_decimal_scenario
* v2-prototype: (75 commits)
Update relayer grid tiles to use Text
Fix build
Update file structure
Update 2.0.0 artifacts
Move ledgerhq module declarations to typescript-typings
Export LedgerEthereumClient type in subproviders
Update artifacts
Add logging and updated artifacts
Fix migrations
Run prettier
Add Kovan artifacts
Use ledger subprovider
Add Kovan migrations
Remove state variable from Link component in Portal
Make registerAssetProxy append only
Update staging api link
Change getTransactionReceipt to awaitTransactionMined
Move /docs route to the end
Remove extra call to scrollIntoView for wallet in onboarding
Update expectRevertReasonOrAlwaysFailingTransactionAsync to check status codes
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Diffstat (limited to 'packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol')
-rw-r--r-- | packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol new file mode 100644 index 000000000..b983347a4 --- /dev/null +++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol @@ -0,0 +1,64 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity ^0.4.24; + +contract LibEIP712 { + // EIP191 header for EIP712 prefix + string constant EIP191_HEADER = "\x19\x01"; + + // EIP712 Domain Name value + string constant EIP712_DOMAIN_NAME = "0x Protocol"; + + // EIP712 Domain Version value + string constant EIP712_DOMAIN_VERSION = "2"; + + // Hash of the EIP712 Domain Separator Schema + bytes32 public constant EIP712_DOMAIN_SEPARATOR_SCHEMA_HASH = keccak256(abi.encodePacked( + "EIP712Domain(", + "string name,", + "string version,", + "address verifyingContract", + ")" + )); + + // Hash of the EIP712 Domain Separator data + bytes32 public EIP712_DOMAIN_HASH; + + constructor () + public + { + EIP712_DOMAIN_HASH = keccak256(abi.encode( + EIP712_DOMAIN_SEPARATOR_SCHEMA_HASH, + keccak256(bytes(EIP712_DOMAIN_NAME)), + keccak256(bytes(EIP712_DOMAIN_VERSION)), + address(this) + )); + } + + /// @dev Calculates EIP712 encoding for a hash struct in this EIP712 Domain. + /// @param hashStruct The EIP712 hash struct. + /// @return EIP712 hash applied to this EIP712 Domain. + function hashEIP712Message(bytes32 hashStruct) + internal + view + returns (bytes32) + { + return keccak256(abi.encodePacked(EIP191_HEADER, EIP712_DOMAIN_HASH, hashStruct)); + } +} |