Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Is this a proxy?
• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

import { LibDiamond } from "./libraries/LibDiamond.sol";
import { IDiamondCut } from "./facets/DiamondCut/IDiamondCut.sol";

contract Diamond {
	receive() external payable {}

	constructor(address _contractOwner, address _diamondCutFacet) payable {
		LibDiamond.setContractOwner(_contractOwner);

		// Add the diamondCut external function from the diamondCutFacet
		IDiamondCut.FacetCut[] memory cut = new IDiamondCut.FacetCut[](1);
		bytes4[] memory functionSelectors = new bytes4[](1);
		functionSelectors[0] = IDiamondCut.diamondCut.selector;
		cut[0] = IDiamondCut.FacetCut({
			facetAddress: _diamondCutFacet,
			action: IDiamondCut.FacetCutAction.Add,
			functionSelectors: functionSelectors
		});
		LibDiamond.diamondCut(cut, address(0), "");
	}

	// Find facet for function that is called and execute the
	// function if a facet is found and return any value.
	fallback() external payable {
		LibDiamond.DiamondStorage storage ds;
		bytes32 position = LibDiamond.DIAMOND_STORAGE_POSITION;
		// get diamond storage
		assembly {
			ds.slot := position
		}
		// get facet from function selector
		address facet = ds.facetAddressAndSelectorPosition[msg.sig].facetAddress;
		require(facet != address(0), "Diamond: Function does not exist");
		// Execute external function from facet using delegatecall and return any value.
		assembly {
			// copy function selector and any arguments
			calldatacopy(0, 0, calldatasize())
			// execute function call using the facet
			let result := delegatecall(gas(), facet, 0, calldatasize(), 0, 0)
			// get any return value
			returndatacopy(0, 0, returndatasize())
			// return any return value or error back to the caller
			switch result
			case 0 {
				revert(0, returndatasize())
			}
			default {
				return(0, returndatasize())
			}
		}
	}
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

interface IDiamondCut {
	// Add=0, Replace=1, Remove=2
	enum FacetCutAction {
		Add,
		Replace,
		Remove
	}

	struct FacetCut {
		address facetAddress;
		FacetCutAction action;
		bytes4[] functionSelectors;
	}

	/// @notice Add/replace/remove any number of functions and optionally execute
	///         a function with delegatecall
	/// @param _diamondCut Contains the facet addresses and function selectors
	/// @param _init The address of the contract or facet to execute _calldata
	/// @param _calldata A function call, including function selector and arguments
	///                  _calldata is executed with delegatecall on _init
	function diamondCut(FacetCut[] calldata _diamondCut, address _init, bytes calldata _calldata) external;

	event DiamondCut(FacetCut[] _diamondCut, address _init, bytes _calldata);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

// A loupe is a small magnifying glass used to look at diamonds.
// These functions look at diamonds
interface IDiamondLoupe {
	struct Facet {
		address facetAddress;
		bytes4[] functionSelectors;
	}

	/// @notice Gets all facet addresses and their four byte function selectors.
	/// @return facets_ Facet
	function facets() external view returns (Facet[] memory facets_);

	/// @notice Gets all the function selectors supported by a specific facet.
	/// @param _facet The facet address.
	/// @return facetFunctionSelectors_
	function facetFunctionSelectors(address _facet) external view returns (bytes4[] memory facetFunctionSelectors_);

	/// @notice Get all the facet addresses used by a diamond.
	/// @return facetAddresses_
	function facetAddresses() external view returns (address[] memory facetAddresses_);

	/// @notice Gets the facet that supports the given selector.
	/// @dev If facet is not found return address(0).
	/// @param _functionSelector The function selector.
	/// @return facetAddress_ The facet address.
	function facetAddress(bytes4 _functionSelector) external view returns (address facetAddress_);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

interface IERC165 {
	/// @notice Query if a contract implements an interface
	/// @param interfaceId The interface identifier, as specified in ERC-165
	/// @dev Interface identification is specified in ERC-165. This function
	///  uses less than 30,000 gas.
	/// @return `true` if the contract implements `interfaceID` and
	///  `interfaceID` is not 0xffffffff, `false` otherwise
	function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

import { IDiamondCut } from "../facets/DiamondCut/IDiamondCut.sol";
import { IDiamondLoupe } from "../facets/DiamondLoup/IDiamondLoupe.sol";
import { IERC165 } from "../interfaces/IERC165.sol";

library LibDiamond {
	bytes32 public constant DIAMOND_STORAGE_POSITION = keccak256("diamond.standard.diamond.storage");

	struct FacetAddressAndSelectorPosition {
		address facetAddress;
		uint16 selectorPosition;
	}

	struct DiamondStorage {
		// function selector => facet address and selector position in selectors array
		mapping(bytes4 => FacetAddressAndSelectorPosition) facetAddressAndSelectorPosition;
		bytes4[] selectors;
		mapping(bytes4 => bool) supportedInterfaces;
		// owner of the contract
		address contractOwner;
	}

	function diamondStorage() internal pure returns (DiamondStorage storage ds) {
		bytes32 position = DIAMOND_STORAGE_POSITION;
		assembly {
			ds.slot := position
		}
	}

	event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

	function setContractOwner(address _newOwner) internal {
		DiamondStorage storage ds = diamondStorage();
		address previousOwner = ds.contractOwner;
		ds.contractOwner = _newOwner;
		emit OwnershipTransferred(previousOwner, _newOwner);
	}

	function contractOwner() internal view returns (address contractOwner_) {
		contractOwner_ = diamondStorage().contractOwner;
	}

	function enforceIsOwnerOrContract() internal view {
		require(msg.sender == diamondStorage().contractOwner || msg.sender == address(this), "LibDiamond: Must be contract or owner");
	}

	function enforceIsContractOwner() internal view {
		require(msg.sender == diamondStorage().contractOwner, "LibDiamond: Must be contract owner");
	}

	event DiamondCut(IDiamondCut.FacetCut[] _diamondCut, address _init, bytes _calldata);

	// Internal function version of diamondCut
	function diamondCut(IDiamondCut.FacetCut[] memory _diamondCut, address _init, bytes memory _calldata) internal {
		for (uint256 facetIndex; facetIndex < _diamondCut.length; facetIndex++) {
			IDiamondCut.FacetCutAction action = _diamondCut[facetIndex].action;
			if (action == IDiamondCut.FacetCutAction.Add) {
				addFunctions(_diamondCut[facetIndex].facetAddress, _diamondCut[facetIndex].functionSelectors);
			} else if (action == IDiamondCut.FacetCutAction.Replace) {
				replaceFunctions(_diamondCut[facetIndex].facetAddress, _diamondCut[facetIndex].functionSelectors);
			} else if (action == IDiamondCut.FacetCutAction.Remove) {
				removeFunctions(_diamondCut[facetIndex].facetAddress, _diamondCut[facetIndex].functionSelectors);
			} else {
				revert("LibDiamondCut: Incorrect FacetCutAction");
			}
		}
		emit DiamondCut(_diamondCut, _init, _calldata);
		initializeDiamondCut(_init, _calldata);
	}

	function addFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {
		require(_functionSelectors.length > 0, "LibDiamondCut: No selectors in facet to cut");
		DiamondStorage storage ds = diamondStorage();
		uint16 selectorCount = uint16(ds.selectors.length);
		require(_facetAddress != address(0), "LibDiamondCut: Add facet can't be address(0)");
		enforceHasContractCode(_facetAddress, "LibDiamondCut: Add facet has no code");
		for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
			bytes4 selector = _functionSelectors[selectorIndex];
			address oldFacetAddress = ds.facetAddressAndSelectorPosition[selector].facetAddress;
			require(oldFacetAddress == address(0), "LibDiamondCut: Can't add function that already exists");
			ds.facetAddressAndSelectorPosition[selector] = FacetAddressAndSelectorPosition(_facetAddress, selectorCount);
			ds.selectors.push(selector);
			selectorCount++;
		}
	}

	function replaceFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {
		require(_functionSelectors.length > 0, "LibDiamondCut: No selectors in facet to cut");
		DiamondStorage storage ds = diamondStorage();
		require(_facetAddress != address(0), "LibDiamondCut: Replace facet can't be address(0)");
		enforceHasContractCode(_facetAddress, "LibDiamondCut: Replace facet has no code");
		for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
			bytes4 selector = _functionSelectors[selectorIndex];
			address oldFacetAddress = ds.facetAddressAndSelectorPosition[selector].facetAddress;
			// can't replace immutable functions -- functions defined directly in the diamond
			require(oldFacetAddress != address(this), "LibDiamondCut: Can't replace immutable function");
			require(oldFacetAddress != _facetAddress, "LibDiamondCut: Can't replace function with same function");
			require(oldFacetAddress != address(0), "LibDiamondCut: Can't replace function that doesn't exist");
			// replace old facet address
			ds.facetAddressAndSelectorPosition[selector].facetAddress = _facetAddress;
		}
	}

	function removeFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {
		require(_functionSelectors.length > 0, "LibDiamondCut: No selectors in facet to cut");
		DiamondStorage storage ds = diamondStorage();
		uint256 selectorCount = ds.selectors.length;
		require(_facetAddress == address(0), "LibDiamondCut: Remove facet address must be address(0)");
		for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
			bytes4 selector = _functionSelectors[selectorIndex];
			FacetAddressAndSelectorPosition memory oldFacetAddressAndSelectorPosition = ds.facetAddressAndSelectorPosition[selector];
			require(oldFacetAddressAndSelectorPosition.facetAddress != address(0), "LibDiamondCut: Can't remove function that doesn't exist");
			// can't remove immutable functions -- functions defined directly in the diamond
			require(oldFacetAddressAndSelectorPosition.facetAddress != address(this), "LibDiamondCut: Can't remove immutable function.");
			// replace selector with last selector
			selectorCount--;
			if (oldFacetAddressAndSelectorPosition.selectorPosition != selectorCount) {
				bytes4 lastSelector = ds.selectors[selectorCount];
				ds.selectors[oldFacetAddressAndSelectorPosition.selectorPosition] = lastSelector;
				ds.facetAddressAndSelectorPosition[lastSelector].selectorPosition = oldFacetAddressAndSelectorPosition.selectorPosition;
			}
			// delete last selector
			ds.selectors.pop();
			delete ds.facetAddressAndSelectorPosition[selector];
		}
	}

	function initializeDiamondCut(address _init, bytes memory _calldata) internal {
		if (_init == address(0)) {
			require(_calldata.length == 0, "LibDiamondCut: _init is address(0) but_calldata is not empty");
		} else {
			require(_calldata.length > 0, "LibDiamondCut: _calldata is empty but _init is not address(0)");
			if (_init != address(this)) {
				enforceHasContractCode(_init, "LibDiamondCut: _init address has no code");
			}
			(bool success, bytes memory error) = _init.delegatecall(_calldata);
			if (!success) {
				if (error.length > 0) {
					// bubble up the error
					revert(string(error));
				} else {
					revert("LibDiamondCut: _init function reverted");
				}
			}
		}
	}

	function enforceHasContractCode(address _contract, string memory _errorMessage) internal view {
		uint256 contractSize;
		assembly {
			contractSize := extcodesize(_contract)
		}
		require(contractSize > 0, _errorMessage);
	}
}

{
  "metadata": {
    "bytecodeHash": "none"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "viaIR": true,
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_contractOwner","type":"address"},{"internalType":"address","name":"_diamondCutFacet","type":"address"}],"stateMutability":"payable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

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

0x6080604052361560aa57600080356001600160e01b03191681527fc8fcad8db84d3cc18b4c41d551ea0ee66dd599cde068d998e57d5e09332c131c60205260408120546001600160a01b03168015606c57818091368280378136915af43d82803e156068573d90f35b3d90fd5b62461bcd60e51b6080526020608452602060a4527f4469616d6f6e643a2046756e6374696f6e20646f6573206e6f7420657869737460c45260646080fd5b00fea164736f6c6343000812000a

000000000000000000000000f12239317e985f6772f86407608b166efa3e2f050000000000000000000000006d87fb6e54e9c8e18bc57decd9c772e4b323a300

-----Decoded View---------------
Arg [0] : _contractOwner (address): 0xf12239317e985f6772F86407608B166EfA3E2f05
Arg [1] : _diamondCutFacet (address): 0x6D87fb6e54E9C8E18Bc57DeCD9c772e4B323a300

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000f12239317e985f6772f86407608b166efa3e2f05
Arg [1] : 0000000000000000000000006d87fb6e54e9c8e18bc57decd9c772e4b323a300