Description:
Multi-signature wallet contract requiring multiple confirmations for transaction execution.
Blockchain: Ethereum
Source Code: View Code On The Blockchain
Solidity Source Code:
{{
"language": "Solidity",
"sources": {
"lib/zivoe-core-foundry/src/lockers/OCC/OCC_Cycle.sol": {
"content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.17;
import "../../ZivoeLocker.sol";
import "../../../lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol";
// Interface for ZivoeGlobals
interface IZivoeGlobals_OCC_Variable {
function YDL() external view returns (address);
function DAO() external view returns (address);
}
/// @notice OCC stands for "On-Chain Credit", and Variable refers to supporting a variable payment.
/// This locker is responsible for handling draw limits.
/// This locker is responsible for handling payments, distributions, and for storing payment data.
contract OCC_Cycle is ZivoeLocker, ReentrancyGuard {
using SafeERC20 for IERC20;
// ---------------------
// State Variables
// ---------------------
address public immutable GBL; /// @dev The ZivoeGlobals contract.
address public immutable USDC; /// @dev The USDC token contract.
address public immutable underwriter; /// @dev The entity that manages draw limits.
mapping(address => uint256) public limit; /// @dev The draw limit mapping.
mapping(address => uint256) public usage; /// @dev The draw usage mapping.
// -----------------
// Constructor
// -----------------
/// @notice Initializes the OCC_Variable contract.
/// @param DAO The administrator of this contract (intended to be ZivoeDAO).
/// @param _USDC The USDC token contract.
/// @param _GBL The ZivoeGlobals contract.
/// @param _underwriter The entity that manages draw limits.
constructor(
address DAO,
address _USDC,
address _GBL,
address _underwriter
) {
transferOwnershipAndLock(DAO);
USDC = _USDC;
GBL = _GBL;
underwriter = _underwriter;
limit[0xC8d6248fFbc59BFD51B23E69b962C60590d5f026] = uint(20_000_000 * 10**6);
limit[0x50C72Ff8c5e7498F64BEAeB8Ed5BE83CABEB0Fd5] = uint(20_000_000 * 10**6);
usage[0xC8d6248fFbc59BFD51B23E69b962C60590d5f026] = uint(5_000_000 * 10**6);
usage[0x50C72Ff8c5e7498F64BEAeB8Ed5BE83CABEB0Fd5] = uint(1_000_000 * 10**6);
}
// ------------
// Events
// ------------
/// @notice Emitted when a user draws USDC.
/// @param amount The amount drawn.
/// @param user The user that drew the funds.
event Draw(uint256 amount, address indexed user);
/// @notice Emitted when a user repays USDC.
/// @param amount The amount repaid.
/// @param base The base amount repaid.
/// @param user The user that repaid the funds.
event Repay(uint256 amount, uint256 base, address indexed user);
/// @notice Emitted when a user cycles USDC.
/// @param amount The amount cycled.
/// @param base The new base amount.
/// @param user The user cycled for.
event Cycle(uint256 amount, uint256 base, address indexed user);
/// @notice Emitted when the underwriter adjusts a draw limit.
/// @param amount The amount to adjust the limit to.
/// @param user The user to adjust the limit for.
event AdjustLimit(uint256 amount, address indexed user);
/// @notice Emitted when the underwriter adjusts usage.
/// @param amount The amount to adjust the usage to.
/// @param user The user to adjust the usage for.
event AdjustUsage(uint256 amount, address indexed user);
// ---------------
// Modifiers
// ---------------
/// @notice This modifier ensures that the caller is the entity that is allowed to issue loans.
modifier isUnderwriter() {
require(_msgSender() == underwriter, "OCC_Cycle::isUnderwriter() _msgSender() != underwriter");
_;
}
// ---------------
// Functions
// ---------------
/// @notice Permission for owner to call pushToLocker().
function canPush() public override pure returns (bool) { return true; }
/// @notice Permission for owner to call pullFromLocker().
function canPull() public override pure returns (bool) { return true; }
/// @notice Permission for owner to call pullFromLockerPartial().
function canPullPartial() public override pure returns (bool) { return true; }
/// @notice This pulls capital from the DAO and deposits it into this contract
/// @param asset The asset to pull from the DAO.
/// @param amount The amount of asset to pull from the DAO.
/// @param data Accompanying transaction data.
function pushToLocker(
address asset, uint256 amount, bytes calldata data
) external override onlyOwner nonReentrant {
require(asset == USDC, "OCC_Cycle::pushToLocker() asset != USDC");
IERC20(asset).safeTransferFrom(owner(), address(this), amount);
}
/// @notice Migrates entire ERC20 balance from locker to owner().
/// @param asset The asset to migrate.
/// @param data Accompanying transaction data.
function pullFromLocker(address asset, bytes calldata data) external override onlyOwner nonReentrant {
require(asset == USDC, "OCC_Cycle::pullFromLocker() asset != USDC");
IERC20(USDC).safeTransfer(owner(), IERC20(USDC).balanceOf(address(this)));
}
/// @notice Migrates specific amount of ERC20 from locker to owner().
/// @param asset The asset to migrate.
/// @param amount The amount of "asset" to migrate.
/// @param data Accompanying transaction data.
function pullFromLockerPartial(
address asset, uint256 amount, bytes calldata data
) external override onlyOwner nonReentrant {
require(asset == USDC, "OCC_Cycle::pullFromLockerPartial() asset != USDC");
IERC20(USDC).safeTransfer(owner(), amount);
}
/// @notice Adjusts the limit for a particular user.
/// @param amount The amount to adjust the limit to.
/// @param user The user to adjust the limit for.
function adjustLimit(uint256 amount, address user) external isUnderwriter {
limit[user] = amount;
emit AdjustLimit(amount, user);
}
/// @notice Adjusts the usage for a particular user.
/// @param amount The amount to adjust the usage to.
/// @param user The user to adjust the usage for.
function adjustUsage(uint256 amount, address user) external isUnderwriter {
usage[user] = amount;
emit AdjustUsage(amount, user);
}
/// @notice Draw from OCC_Variable.
/// @param amount The amount to draw.
function draw(uint256 amount) external {
require(amount + usage[_msgSender()] <= limit[_msgSender()], "OCC_Cycle::draw() amount + usage > limit");
usage[_msgSender()] += amount;
IERC20(USDC).safeTransfer(_msgSender(), amount);
emit Draw(amount, _msgSender());
}
/// @notice Repay to OCC_Variable.
/// @param amount The amount to repay.
/// @param base The base amount to repay.
function repay(uint256 amount, uint256 base) external {
require(base <= amount, "OCC_Cycle::repay() base > amount");
require(amount <= usage[_msgSender()], "OCC_Cycle::repay() amount > usage");
IERC20(USDC).safeTransferFrom(_msgSender(), address(this), amount);
// "Amount - base" is forwarded to YDL.
IERC20(USDC).safeTransfer(IZivoeGlobals_OCC_Variable(GBL).YDL(), amount - base);
// "Base" is forwarded to DAO.
if (base > 0) {
IERC20(USDC).safeTransfer(IZivoeGlobals_OCC_Variable(GBL).DAO(), base);
usage[_msgSender()] -= base;
}
emit Repay(amount, base, _msgSender());
}
/// @notice Cycle USDC for compounding base.
/// @param amounts The amounts to cycle.
/// @param users The users to cycle for.
function cycle(uint256[] calldata amounts, address[] calldata users) external {
require(amounts.length == users.length, "OCC_Cycle::cycle() amounts.length != users.length");
for (uint i = 0; i < amounts.length; i++) {
usage[users[i]] += amounts[i];
IERC20(USDC).safeTransferFrom(_msgSender(), IZivoeGlobals_OCC_Variable(GBL).YDL(), amounts[i]);
emit Cycle(amounts[i], usage[users[i]], users[i]);
}
}
}"
},
"lib/zivoe-core-foundry/src/ZivoeLocker.sol": {
"content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.17;
import "./libraries/OwnableLocked.sol";
import "../lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
import "../lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
import "../lib/openzeppelin-contracts/contracts/token/ERC721/IERC721.sol";
import "../lib/openzeppelin-contracts/contracts/token/ERC721/utils/ERC721Holder.sol";
import "../lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155.sol";
import "../lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Holder.sol";
/// @notice This contract standardizes communication between the DAO and lockers.
abstract contract ZivoeLocker is OwnableLocked, ERC1155Holder, ERC721Holder {
using SafeERC20 for IERC20;
// -----------------
// Constructor
// -----------------
/// @notice Initializes the ZivoeLocker contract.
constructor() {}
// ---------------
// Functions
// ---------------
/// @notice Permission for calling pushToLocker().
function canPush() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pullFromLocker().
function canPull() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pullFromLockerPartial().
function canPullPartial() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pushToLockerMulti().
function canPushMulti() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pullFromLockerMulti().
function canPullMulti() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pullFromLockerMultiPartial().
function canPullMultiPartial() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pushToLockerERC721().
function canPushERC721() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pullFromLockerERC721().
function canPullERC721() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pushToLockerMultiERC721().
function canPushMultiERC721() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pullFromLockerMultiERC721().
function canPullMultiERC721() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pushToLockerERC1155().
function canPushERC1155() public virtual view returns (bool) { return false; }
/// @notice Permission for calling pullFromLockerERC1155().
function canPullERC1155() public virtual view returns (bool) { return false; }
/// @notice Migrates specific amount of ERC20 from owner() to locker.
/// @param asset The asset to migrate.
/// @param amount The amount of "asset" to migrate.
/// @param data Accompanying transaction data.
function pushToLocker(address asset, uint256 amount, bytes calldata data) external virtual onlyOwner {
require(canPush(), "ZivoeLocker::pushToLocker() !canPush()");
IERC20(asset).safeTransferFrom(owner(), address(this), amount);
}
/// @notice Migrates entire ERC20 balance from locker to owner().
/// @param asset The asset to migrate.
/// @param data Accompanying transaction data.
function pullFromLocker(address asset, bytes calldata data) external virtual onlyOwner {
require(canPull(), "ZivoeLocker::pullFromLocker() !canPull()");
IERC20(asset).safeTransfer(owner(), IERC20(asset).balanceOf(address(this)));
}
/// @notice Migrates specific amount of ERC20 from locker to owner().
/// @param asset The asset to migrate.
/// @param amount The amount of "asset" to migrate.
/// @param data Accompanying transaction data.
function pullFromLockerPartial(address asset, uint256 amount, bytes calldata data) external virtual onlyOwner {
require(canPullPartial(), "ZivoeLocker::pullFromLockerPartial() !canPullPartial()");
IERC20(asset).safeTransfer(owner(), amount);
}
/// @notice Migrates specific amounts of ERC20s from owner() to locker.
/// @param assets The assets to migrate.
/// @param amounts The amounts of "assets" to migrate, corresponds to "assets" by position in array.
/// @param data Accompanying transaction data.
function pushToLockerMulti(
address[] calldata assets, uint256[] calldata amounts, bytes[] calldata data
) external virtual onlyOwner {
require(canPushMulti(), "ZivoeLocker::pushToLockerMulti() !canPushMulti()");
for (uint256 i = 0; i < assets.length; i++) {
IERC20(assets[i]).safeTransferFrom(owner(), address(this), amounts[i]);
}
}
/// @notice Migrates full amount of ERC20s from locker to owner().
/// @param assets The assets to migrate.
/// @param data Accompanying transaction data.
function pullFromLockerMulti(address[] calldata assets, bytes[] calldata data) external virtual onlyOwner {
require(canPullMulti(), "ZivoeLocker::pullFromLockerMulti() !canPullMulti()");
for (uint256 i = 0; i < assets.length; i++) {
IERC20(assets[i]).safeTransfer(owner(), IERC20(assets[i]).balanceOf(address(this)));
}
}
/// @notice Migrates specific amounts of ERC20s from locker to owner().
/// @param assets The assets to migrate.
/// @param amounts The amounts of "assets" to migrate, corresponds to "assets" by position in array.
/// @param data Accompanying transaction data.
function pullFromLockerMultiPartial(
address[] calldata assets, uint256[] calldata amounts, bytes[] calldata data
) external virtual onlyOwner {
require(canPullMultiPartial(), "ZivoeLocker::pullFromLockerMultiPartial() !canPullMultiPartial()");
for (uint256 i = 0; i < assets.length; i++) {
IERC20(assets[i]).safeTransfer(owner(), amounts[i]);
}
}
/// @notice Migrates an ERC721 from owner() to locker.
/// @param asset The NFT contract.
/// @param tokenId The ID of the NFT to migrate.
/// @param data Accompanying transaction data.
function pushToLockerERC721(address asset, uint256 tokenId, bytes calldata data) external virtual onlyOwner {
require(canPushERC721(), "ZivoeLocker::pushToLockerERC721() !canPushERC721()");
IERC721(asset).safeTransferFrom(owner(), address(this), tokenId, data);
}
/// @notice Migrates an ERC721 from locker to owner().
/// @param asset The NFT contract.
/// @param tokenId The ID of the NFT to migrate.
/// @param data Accompanying transaction data.
function pullFromLockerERC721(address asset, uint256 tokenId, bytes calldata data) external virtual onlyOwner {
require(canPullERC721(), "ZivoeLocker::pullFromLockerERC721() !canPullERC721()");
IERC721(asset).safeTransferFrom(address(this), owner(), tokenId, data);
}
/// @notice Migrates ERC721s from owner() to locker.
/// @param assets The NFT contracts.
/// @param tokenIds The IDs of the NFTs to migrate.
/// @param data Accompanying transaction data.
function pushToLockerMultiERC721(
address[] calldata assets, uint256[] calldata tokenIds, bytes[] calldata data
) external virtual onlyOwner {
require(canPushMultiERC721(), "ZivoeLocker::pushToLockerMultiERC721() !canPushMultiERC721()");
for (uint256 i = 0; i < assets.length; i++) {
IERC721(assets[i]).safeTransferFrom(owner(), address(this), tokenIds[i], data[i]);
}
}
/// @notice Migrates ERC721s from locker to owner().
/// @param assets The NFT contracts.
/// @param tokenIds The IDs of the NFTs to migrate.
/// @param data Accompanying transaction data.
function pullFromLockerMultiERC721(
address[] calldata assets, uint256[] calldata tokenIds, bytes[] calldata data
) external virtual onlyOwner {
require(canPullMultiERC721(), "ZivoeLocker::pullFromLockerMultiERC721() !canPullMultiERC721()");
for (uint256 i = 0; i < assets.length; i++) {
IERC721(assets[i]).safeTransferFrom(address(this), owner(), tokenIds[i], data[i]);
}
}
/// @notice Migrates ERC1155 assets from owner() to locker.
/// @param asset The ERC1155 contract.
/// @param ids The IDs of the assets within the ERC1155 to migrate.
/// @param amounts The amounts to migrate.
/// @param data Accompanying transaction data.
function pushToLockerERC1155(
address asset, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data
) external virtual onlyOwner {
require(canPushERC1155(), "ZivoeLocker::pushToLockerERC1155() !canPushERC1155()");
IERC1155(asset).safeBatchTransferFrom(owner(), address(this), ids, amounts, data);
}
/// @notice Migrates ERC1155 assets from locker to owner().
/// @param asset The ERC1155 contract.
/// @param ids The IDs of the assets within the ERC1155 to migrate.
/// @param amounts The amounts to migrate.
/// @param data Accompanying transaction data.
function pullFromLockerERC1155(
address asset, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data
) external virtual onlyOwner {
require(canPullERC1155(), "ZivoeLocker::pullFromLockerERC1155() !canPullERC1155()");
IERC1155(asset).safeBatchTransferFrom(address(this), owner(), ids, amounts, data);
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
"
},
"lib/zivoe-core-foundry/src/libraries/OwnableLocked.sol": {
"content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.17;
import "../../lib/openzeppelin-contracts/contracts/access/Ownable.sol";
abstract contract OwnableLocked is Ownable {
bool public locked; /// @dev A variable "locked" that prevents future ownership transfer.
/**
* @dev Throws if called by any account other than the owner.
*/
modifier unlocked() {
require(!locked, "OwnableLocked::unlocked() locked");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner and if !locked.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public override(Ownable) onlyOwner unlocked { _transferOwnership(address(0)); }
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner and if !locked.
*/
function transferOwnership(address newOwner) public override(Ownable) onlyOwner unlocked {
require(newOwner != address(0), "OwnableLocked::transferOwnership() newOwner == address(0)");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner and if !locked.
*/
function transferOwnershipAndLock(address newOwner) public onlyOwner unlocked {
require(newOwner != address(0), "OwnableLocked::transferOwnershipAndLock() newOwner == address(0)");
locked = true;
_transferOwnership(newOwner);
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC721/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC721/utils/ERC721Holder.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/utils/ERC721Holder.sol)
pragma solidity ^0.8.0;
import "../IERC721Receiver.sol";
/**
* @dev Implementation of the {IERC721Receiver} interface.
*
* Accepts all token transfers.
* Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
*/
contract ERC721Holder is IERC721Receiver {
/**
* @dev See {IERC721Receiver-onERC721Received}.
*
* Always returns `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address,
address,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC721Received.selector;
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[EIP].
*
* _Available since v3.1._
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the amount of tokens of token type `id` owned by `account`.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the caller.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Holder.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/utils/ERC1155Holder.sol)
pragma solidity ^0.8.0;
import "./ERC1155Receiver.sol";
/**
* Simple implementation of `ERC1155Receiver` that will allow a contract to hold ERC1155 tokens.
*
* IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be
* stuck.
*
* @dev _Available since v3.1._
*/
contract ERC1155Holder is ERC1155Receiver {
function onERC1155Received(
address,
address,
uint256,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155Received.selector;
}
function onERC1155BatchReceived(
address,
address,
uint256[] memory,
uint256[] memory,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155BatchReceived.selector;
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/access/Ownable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-IERC20Permit.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC721/IERC721Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../IERC1155Receiver.sol";
import "../../../utils/introspection/ERC165.sol";
/**
* @dev _Available since v3.1._
*/
abstract contract ERC1155Receiver is ERC165, IERC1155Receiver {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev _Available since v3.1._
*/
interface IERC1155Receiver is IERC165 {
/**
* @dev Handles the receipt of a single ERC1155 token type. This function is
* called at the end of a `safeTransferFrom` after the balance has been updated.
*
* NOTE: To accept the transfer, this must return
* `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
* (i.e. 0xf23a6e61, or its own function selector).
*
* @param operator The address which initiated the transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param id The ID of the token being transferred
* @param value The amount of tokens being transferred
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
/**
* @dev Handles the receipt of a multiple ERC1155 token types. This function
* is called at the end of a `safeBatchTransferFrom` after the balances have
* been updated.
*
* NOTE: To accept the transfer(s), this must return
* `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
* (i.e. 0xbc197c81, or its own function selector).
*
* @param operator The address which initiated the batch transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param ids An array containing ids of each token being transferred (order and length must match values array)
* @param values An array containing amounts of each token being transferred (order and length must match ids array)
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
"
},
"lib/zivoe-core-foundry/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
"
}
},
"settings": {
"remappings": [
"ds-test/=lib/zivoe-core-foundry/lib/Submitted on: 2025-10-01 19:10:26
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