77 lines
3.8 KiB
Solidity
77 lines
3.8 KiB
Solidity
// SPDX-License-Identifier: GPL-2.0-or-later
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pragma solidity >=0.7.5;
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/// @title Self Permit
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/// @notice Functionality to call permit on any EIP-2612-compliant token for use in the route
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interface ISelfPermit {
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/// @notice Permits this contract to spend a given token from `msg.sender`
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/// @dev The `owner` is always msg.sender and the `spender` is always address(this).
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/// @param token The address of the token spent
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/// @param value The amount that can be spent of token
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/// @param deadline A timestamp, the current blocktime must be less than or equal to this timestamp
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/// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
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/// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
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/// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
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function selfPermit(
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address token,
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uint256 value,
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uint256 deadline,
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uint8 v,
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bytes32 r,
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bytes32 s
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) external payable;
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/// @notice Permits this contract to spend a given token from `msg.sender`
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/// @dev The `owner` is always msg.sender and the `spender` is always address(this).
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/// Can be used instead of #selfPermit to prevent calls from failing due to a frontrun of a call to #selfPermit
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/// @param token The address of the token spent
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/// @param value The amount that can be spent of token
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/// @param deadline A timestamp, the current blocktime must be less than or equal to this timestamp
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/// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
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/// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
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/// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
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function selfPermitIfNecessary(
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address token,
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uint256 value,
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uint256 deadline,
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uint8 v,
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bytes32 r,
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bytes32 s
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) external payable;
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/// @notice Permits this contract to spend the sender's tokens for permit signatures that have the `allowed` parameter
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/// @dev The `owner` is always msg.sender and the `spender` is always address(this)
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/// @param token The address of the token spent
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/// @param nonce The current nonce of the owner
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/// @param expiry The timestamp at which the permit is no longer valid
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/// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
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/// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
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/// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
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function selfPermitAllowed(
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address token,
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uint256 nonce,
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uint256 expiry,
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uint8 v,
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bytes32 r,
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bytes32 s
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) external payable;
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/// @notice Permits this contract to spend the sender's tokens for permit signatures that have the `allowed` parameter
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/// @dev The `owner` is always msg.sender and the `spender` is always address(this)
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/// Can be used instead of #selfPermitAllowed to prevent calls from failing due to a frontrun of a call to #selfPermitAllowed.
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/// @param token The address of the token spent
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/// @param nonce The current nonce of the owner
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/// @param expiry The timestamp at which the permit is no longer valid
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/// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
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/// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
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/// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
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function selfPermitAllowedIfNecessary(
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address token,
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uint256 nonce,
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uint256 expiry,
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uint8 v,
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bytes32 r,
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bytes32 s
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) external payable;
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}
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