29 lines
764 B
Solidity
29 lines
764 B
Solidity
// SPDX-License-Identifier: UNLICENSED
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pragma solidity =0.7.6;
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import '../interfaces/external/IERC1271.sol';
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contract TestPositionNFTOwner is IERC1271 {
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address public owner;
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function setOwner(address _owner) external {
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owner = _owner;
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}
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function isValidSignature(bytes32 hash, bytes memory signature) external view override returns (bytes4 magicValue) {
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bytes32 r;
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bytes32 s;
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uint8 v;
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assembly {
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r := mload(add(signature, 0x20))
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s := mload(add(signature, 0x40))
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v := byte(0, mload(add(signature, 0x60)))
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}
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if (ecrecover(hash, v, r, s) == owner) {
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return bytes4(0x1626ba7e);
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} else {
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return bytes4(0);
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}
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}
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}
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