✨ NFT permit helpers

turbo-eth · Nov 6, 2022 · 1beadda · 1beadda
1 parent 7caf4f2
commit 1beadda
Showing 1 changed file with 59 additions and 2 deletions.
diff --git a/src/utils/SelfPermit.sol b/src/utils/SelfPermit.sol
@@ -3,12 +3,14 @@ pragma solidity ^0.8.4;
 
 import {Permit} from "./Permit.sol";
 
-/// @notice Signature permit helper for any EIP-2612 or Dai-style token.
-/// @author SolDAO (https://github.com/Sol-DAO/solbase/blob/main/src/utils/SelfPermit.sol)
+/// @notice Self helper for any EIP-2612, EIP-4494 or Dai-style token permit.
+/// @author Solbase (https://github.com/Sol-DAO/solbase/blob/main/src/utils/SelfPermit.sol)
 /// @author Modified from Uniswap (https://github.com/Uniswap/v3-periphery/blob/main/contracts/base/SelfPermit.sol)
 /// @dev These functions are expected to be embedded in multicall to allow EOAs to approve a contract and call a function
 /// that requires an approval in a single transaction.
 abstract contract SelfPermit {
+    /// @dev ERC20.
+
     /// @notice Permits this contract to spend a given EIP-2612 `token` from `msg.sender`.
     /// @dev The `owner` is always `msg.sender` and the `spender` is always `address(this)`.
     /// @param token The address of the asset spent.
@@ -46,4 +48,59 @@ abstract contract SelfPermit {
     ) public virtual {
         token.permit(msg.sender, address(this), nonce, deadline, true, v, r, s);
     }
+
+    /// @dev ERC721.
+
+    /// @notice Permits this contract to spend a given EIP-2612-style NFT `tokenID` from `msg.sender`.
+    /// @dev The `spender` is always `address(this)`.
+    /// @param token The address of the asset spent.
+    /// @param tokenId The ID of the token that is being approved for permit.
+    /// @param deadline The unix timestamp before which permit must be spent.
+    /// @param v Must produce valid secp256k1 signature from the `msg.sender` along with `r` and `s`.
+    /// @param r Must produce valid secp256k1 signature from the `msg.sender` along with `v` and `s`.
+    /// @param s Must produce valid secp256k1 signature from the `msg.sender` along with `r` and `v`.
+    function selfPermit721(
+        Permit token,
+        uint256 tokenId,
+        uint256 deadline,
+        uint8 v,
+        bytes32 r,
+        bytes32 s
+    ) public virtual {
+        token.permit(address(this), tokenId, deadline, v, r, s);
+    }
+
+    /// @notice Permits this contract to spend a given EIP-4494 NFT `tokenID`.
+    /// @dev The `spender` is always `address(this)`.
+    /// @param token The address of the asset spent.
+    /// @param tokenId The ID of the token that is being approved for permit.
+    /// @param deadline The unix timestamp before which permit must be spent.
+    /// @param sig A traditional or EIP-2098 signature.
+    function selfPermit721(
+        Permit token,
+        uint256 tokenId,
+        uint256 deadline,
+        bytes calldata sig
+    ) public virtual {
+        token.permit(address(this), tokenId, deadline, sig);
+    }
+
+    /// @dev ERC1155.
+
+    /// @notice Permits this contract to spend a given EIP-2612-style multitoken.
+    /// @dev The `owner` is always `msg.sender` and the `operator` is always `address(this)`.
+    /// @param token The address of the asset spent.
+    /// @param deadline The unix timestamp before which permit must be spent.
+    /// @param v Must produce valid secp256k1 signature from the `msg.sender` along with `r` and `s`.
+    /// @param r Must produce valid secp256k1 signature from the `msg.sender` along with `v` and `s`.
+    /// @param s Must produce valid secp256k1 signature from the `msg.sender` along with `r` and `v`.
+    function selfPermit1155(
+        Permit token,
+        uint256 deadline,
+        uint8 v,
+        bytes32 r,
+        bytes32 s
+    ) public virtual {
+        token.permit(msg.sender, address(this), true, deadline, v, r, s);
+    }
 }