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Private Name Tags
ContractCreator
TokenTracker
Latest 25 from a total of 17,808 transactions
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Approve | 325668636 | 10 days ago | IN | 0 ETH | 0.00000195 | ||||
Approve | 321542656 | 22 days ago | IN | 0 ETH | 0.00000047 | ||||
Approve | 298269415 | 90 days ago | IN | 0 ETH | 0.00000075 | ||||
Approve | 297363342 | 92 days ago | IN | 0 ETH | 0.000002 | ||||
Redeem | 291176707 | 110 days ago | IN | 0 ETH | 0.00000456 | ||||
Approve | 291176154 | 110 days ago | IN | 0 ETH | 0.0000014 | ||||
Approve | 289085186 | 116 days ago | IN | 0 ETH | 0.00000144 | ||||
Approve | 289085168 | 116 days ago | IN | 0 ETH | 0.00000144 | ||||
Approve | 289085146 | 116 days ago | IN | 0 ETH | 0.00000142 | ||||
Transfer | 284523937 | 130 days ago | IN | 0 ETH | 0.00000234 | ||||
Approve | 282152132 | 137 days ago | IN | 0 ETH | 0.00000195 | ||||
Transfer | 278724986 | 147 days ago | IN | 0 ETH | 0.00000285 | ||||
Transfer | 278724978 | 147 days ago | IN | 0 ETH | 0.00000307 | ||||
Approve | 274832116 | 158 days ago | IN | 0 ETH | 0.00000248 | ||||
Approve | 266699214 | 182 days ago | IN | 0 ETH | 0.00000051 | ||||
Approve | 265058337 | 186 days ago | IN | 0 ETH | 0.00000163 | ||||
Approve | 264946003 | 187 days ago | IN | 0 ETH | 0.00000086 | ||||
Approve | 264760729 | 187 days ago | IN | 0 ETH | 0.00000296 | ||||
Approve | 264654164 | 188 days ago | IN | 0 ETH | 0.00000074 | ||||
Approve | 258794712 | 205 days ago | IN | 0 ETH | 0.00000055 | ||||
Approve | 258788770 | 205 days ago | IN | 0 ETH | 0.0000012 | ||||
Approve | 258421635 | 206 days ago | IN | 0 ETH | 0.00000059 | ||||
Approve | 258124998 | 207 days ago | IN | 0 ETH | 0.00000071 | ||||
Approve | 237263337 | 267 days ago | IN | 0 ETH | 0.00000034 | ||||
Transfer | 235751975 | 272 days ago | IN | 0 ETH | 0.00000224 |
Latest 25 internal transactions (View All)
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291176707 | 110 days ago | 0.00751162 ETH | ||||
291176707 | 110 days ago | 0.00751162 ETH | ||||
228026090 | 294 days ago | 0.03740258 ETH | ||||
228026090 | 294 days ago | 0.03740258 ETH | ||||
201566538 | 371 days ago | 1.84735945 ETH | ||||
201566538 | 371 days ago | 1.84735945 ETH | ||||
194706702 | 391 days ago | 0.06274577 ETH | ||||
194706702 | 391 days ago | 0.06274577 ETH | ||||
190358546 | 404 days ago | 0.03567859 ETH | ||||
190358546 | 404 days ago | 0.03567859 ETH | ||||
189530790 | 406 days ago | 0.01165593 ETH | ||||
189530790 | 406 days ago | 0.01165593 ETH | ||||
189530642 | 406 days ago | 0.0832567 ETH | ||||
189530642 | 406 days ago | 0.0832567 ETH | ||||
189527519 | 406 days ago | 0.13343957 ETH | ||||
189527519 | 406 days ago | 0.13343957 ETH | ||||
189527466 | 406 days ago | 0.13343968 ETH | ||||
189527466 | 406 days ago | 0.13343968 ETH | ||||
189527418 | 406 days ago | 0.13343978 ETH | ||||
189527418 | 406 days ago | 0.13343978 ETH | ||||
189527370 | 406 days ago | 0.13343989 ETH | ||||
189527370 | 406 days ago | 0.13343989 ETH | ||||
189527289 | 406 days ago | 0.08339185 ETH | ||||
189527289 | 406 days ago | 0.08339185 ETH | ||||
189526820 | 406 days ago | 0.06670903 ETH |
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Contract Name:
RiseTokenVault
Compiler Version
v0.8.11+commit.d7f03943
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Arbiscan.io on 2022-01-28 */ // . . // * . . . . * . // . . . . . . . // o . . // . . . . // 0 . // . . , , , // . \ . . // . \ , // . o . . . . // . \ , . . // #\##\# . . . // # #O##\### . . // . #*# #\##\### . , // . ##*# #\##\## . . // . ##*# #o##\# . , . // . *# #\# . . . , // \ . . // ____^/\___^--____/\____O______________/\/\---/\___________---______________ // /\^ ^ ^ ^ ^^ ^ '\ ^ ^ --- // -- - -- - - --- __ ^ // -- __ ___-- ^ ^ -- __ // // The largest leveraged tokens market protocol. // // docs: https://docs.risedle.com // twitter: @risedle // github: risedle // Verified using https://dapp.tools // hevm: flattened sources of src/RiseTokenVault.sol // SPDX-License-Identifier: MIT AND GPL-3.0-or-later pragma solidity >=0.8.9 >=0.8.0 <0.9.0; pragma experimental ABIEncoderV2; ////// lib/openzeppelin-contracts/contracts/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/openzeppelin-contracts/contracts/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() { _setOwner(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { 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 { _setOwner(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"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } ////// lib/openzeppelin-contracts/contracts/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 make it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } } ////// lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol /* pragma solidity ^0.8.0; */ /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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 `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount ) external returns (bool); /** * @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); } ////// lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol /* pragma solidity ^0.8.0; */ /* import "../IERC20.sol"; */ /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } ////// lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol /* pragma solidity ^0.8.0; */ /* import "./IERC20.sol"; */ /* import "./extensions/IERC20Metadata.sol"; */ /* import "../../utils/Context.sol"; */ /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); unchecked { _approve(sender, _msgSender(), currentAllowance - amount); } return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(_msgSender(), spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[sender] = senderBalance - amount; } _balances[recipient] += amount; emit Transfer(sender, recipient, amount); _afterTokenTransfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } ////// lib/openzeppelin-contracts/contracts/utils/Address.sol /* pragma solidity ^0.8.0; */ /** * @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 * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 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 functionCall(target, data, "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"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(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) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(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) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason 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 { // 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 assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } ////// lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol /* pragma solidity ^0.8.0; */ /* import "../IERC20.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)); } } /** * @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"); } } } ////// src/RisedleVault.sol // Risedle Vault Contract // It implements money market for Risedle RISE tokens and DROP tokens. // // Copyright (c) 2021 Bayu - All rights reserved // github: pyk // email: [email protected] /* pragma solidity >=0.8.9; */ /* pragma experimental ABIEncoderV2; */ /* import { ERC20 } from "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol"; */ /* import { IERC20 } from "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol"; */ /* import { IERC20Metadata } from "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol"; */ /* import { SafeERC20 } from "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol"; */ /* import { Ownable } from "lib/openzeppelin-contracts/contracts/access/Ownable.sol"; */ /* import { ReentrancyGuard } from "lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol"; */ /// @title Risedle Vault contract RisedleVault is ERC20, Ownable, ReentrancyGuard { using SafeERC20 for IERC20; /// @notice Vault's underlying token address address internal underlyingToken; /// @notice Optimal utilization rate in ether units uint256 internal optimalUtilizationRateInEther = 0.9 ether; // 90% utilization /// @notice Interest slope 1 in ether units uint256 internal interestSlope1InEther = 0.2 ether; // 20% slope 1 /// @notice Interest slop 2 in ether units uint256 internal interestSlope2InEther = 0.6 ether; // 60% slope 2 /// @notice Number of seconds in a year (approximation) uint256 internal immutable totalSecondsInAYear = 31536000; /// @notice Maximum borrow rate per second in ether units uint256 internal maxBorrowRatePerSecondInEther = 50735667174; // 0.000000050735667174% Approx 393% APY /// @notice Performance fee for the lender uint256 internal performanceFeeInEther = 0.1 ether; // 10% performance fee /// @notice Timestamp that interest was last accrued at uint256 internal lastTimestampInterestAccrued; /// @notice The total amount of principal borrowed plus interest accrued uint256 public totalOutstandingDebt; /// @notice The total amount of pending fees to be collected in the vault uint256 public totalPendingFees; /// @notice The total debt proportion issued by the vault, the usage is similar to the vault token supply. In order to track the outstanding debt of the RISE/DROP token uint256 internal totalDebtProportion; /// @notice Max vault's total deposit uint256 public maxTotalDeposit; /// @notice Fee recipient address public FEE_RECIPIENT; /// @notice Mapping RISE/DROP token to their debt proportion of totalOutstandingDebt /// @dev debt = debtProportion[token] * debtProportionRate mapping(address => uint256) internal debtProportion; /// @notice Event emitted when the interest succesfully accrued event InterestAccrued(uint256 previousTimestamp, uint256 currentTimestamp, uint256 previousVaultTotalOutstandingDebt, uint256 previousVaultTotalPendingFees, uint256 borrowRatePerSecondInEther, uint256 elapsedSeconds, uint256 interestAmount, uint256 totalOutstandingDebt, uint256 totalPendingFees); /// @notice Event emitted when lender add supply to the vault event SupplyAdded(address indexed account, uint256 amount, uint256 ExchangeRateInEther, uint256 mintedAmount); /// @notice Event emitted when lender remove supply from the vault event SupplyRemoved(address indexed account, uint256 amount, uint256 ExchangeRateInEther, uint256 redeemedAmount); /// @notice Event emitted when vault parameters are updated event ParametersUpdated(address indexed updater, uint256 u, uint256 s1, uint256 s2, uint256 mr, uint256 fee); /// @notice Event emitted when the collected fees are withdrawn event FeeCollected(address collector, uint256 total, address feeRecipient); /// @notice Event emitted when the fee recipient is updated event FeeRecipientUpdated(address updater, address newFeeRecipient); /// @notice Construct new RisedleVault constructor( string memory name, // The name of the vault's token (e.g. Risedle USDC Vault) string memory symbol, // The symbol of the vault's token (e.g rvUSDC) address underlying, // The ERC20 address of the vault's underlying token (e.g. address of USDC token) address feeRecipient // Fee recipient ) ERC20(name, symbol) { underlyingToken = underlying; // Set the vault underlying token lastTimestampInterestAccrued = block.timestamp; // Set the last timestamp accrued totalOutstandingDebt = 0; // Set the initial state totalPendingFees = 0; FEE_RECIPIENT = feeRecipient; maxTotalDeposit = 0; } /// @notice Vault's token use the same decimals as the underlying function decimals() public view virtual override returns (uint8) { return IERC20Metadata(underlyingToken).decimals(); } /// @notice getUnderlying returns the underlying token of the vault function getUnderlying() external view returns (address underlying) { underlying = underlyingToken; } /// @notice getTotalAvailableCash returns the total amount of vault's underlying token that available to borrow function getTotalAvailableCash() public view returns (uint256) { uint256 vaultBalance = IERC20(underlyingToken).balanceOf(address(this)); if (totalPendingFees >= vaultBalance) return 0; return vaultBalance - totalPendingFees; } /// @notice calculateUtilizationRateInEther calculates the utilization rate of the vault. function calculateUtilizationRateInEther(uint256 available, uint256 outstandingDebt) internal pure returns (uint256) { if (outstandingDebt == 0) return 0; // Utilization rate is 0% when there is no outstandingDebt if (available == 0 && outstandingDebt > 0) return 1 ether; // Utilization rate is 100% when there is no cash available uint256 rateInEther = (outstandingDebt * 1 ether) / (outstandingDebt + available); // utilization rate = amount outstanding debt / (amount available + amount outstanding debt) return rateInEther; } /// @notice getUtilizationRateInEther for external use function getUtilizationRateInEther() public view returns (uint256 utilizationRateInEther) { uint256 totalAvailable = getTotalAvailableCash(); // Get total available asset utilizationRateInEther = calculateUtilizationRateInEther(totalAvailable, totalOutstandingDebt); } /// @notice calculateBorrowRatePerSecondInEther calculates the borrow rate per second in ether units function calculateBorrowRatePerSecondInEther(uint256 utilizationRateInEther) internal view returns (uint256) { // utilizationRateInEther should in range [0, 1e18], Otherwise return max borrow rate if (utilizationRateInEther >= 1 ether) return maxBorrowRatePerSecondInEther; // Calculate the borrow rate // See the formula here: https://observablehq.com/@pyk /ethrise if (utilizationRateInEther <= optimalUtilizationRateInEther) { // Borrow rate per year = (utilization rate/optimal utilization rate) * interest slope 1 // Borrow rate per seconds = Borrow rate per year / seconds in a year uint256 rateInEther = (utilizationRateInEther * 1 ether) / optimalUtilizationRateInEther; uint256 borrowRatePerYearInEther = (rateInEther * interestSlope1InEther) / 1 ether; uint256 borrowRatePerSecondInEther = borrowRatePerYearInEther / totalSecondsInAYear; return borrowRatePerSecondInEther; } else { // Borrow rate per year = interest slope 1 + ((utilization rate - optimal utilization rate)/(1-utilization rate)) * interest slope 2 // Borrow rate per seconds = Borrow rate per year / seconds in a year uint256 aInEther = utilizationRateInEther - optimalUtilizationRateInEther; uint256 bInEther = 1 ether - utilizationRateInEther; uint256 cInEther = (aInEther * 1 ether) / bInEther; uint256 dInEther = (cInEther * interestSlope2InEther) / 1 ether; uint256 borrowRatePerYearInEther = interestSlope1InEther + dInEther; uint256 borrowRatePerSecondInEther = borrowRatePerYearInEther / totalSecondsInAYear; // Cap the borrow rate if (borrowRatePerSecondInEther >= maxBorrowRatePerSecondInEther) { return maxBorrowRatePerSecondInEther; } return borrowRatePerSecondInEther; } } /// @notice getBorrowRatePerSecondInEther returns the current borrow rate per seconds function getBorrowRatePerSecondInEther() public view returns (uint256 borrowRateInEther) { uint256 utilizationRateInEther = getUtilizationRateInEther(); borrowRateInEther = calculateBorrowRatePerSecondInEther(utilizationRateInEther); } /// @notice getSupplyRatePerSecondInEther calculates the supply rate per second in ether units function getSupplyRatePerSecondInEther() public view returns (uint256 supplyRateInEther) { uint256 utilizationRateInEther = getUtilizationRateInEther(); uint256 borrowRateInEther = calculateBorrowRatePerSecondInEther(utilizationRateInEther); uint256 nonFeeInEther = 1 ether - performanceFeeInEther; uint256 rateForSupplyInEther = (borrowRateInEther * nonFeeInEther) / 1 ether; supplyRateInEther = (utilizationRateInEther * rateForSupplyInEther) / 1 ether; } /// @notice getInterestAmount calculate amount of interest based on the total outstanding debt and borrow rate per second. function getInterestAmount( uint256 outstandingDebt, // Total of outstanding debt, in underlying decimals uint256 borrowRatePerSecondInEther, // Borrow rates per second in ether units uint256 elapsedSeconds // Number of seconds elapsed since last accrued ) internal pure returns (uint256) { if (outstandingDebt == 0 || borrowRatePerSecondInEther == 0 || elapsedSeconds == 0) return 0; uint256 interestAmount = (borrowRatePerSecondInEther * elapsedSeconds * outstandingDebt) / 1 ether; // Calculate the amount of interest return interestAmount; } /// @notice setVaultStates update the totalOutstandingDebt and totalPendingFees function setVaultStates(uint256 interestAmount, uint256 currentTimestamp) internal { uint256 feeAmount = (performanceFeeInEther * interestAmount) / 1 ether; // Get the fee totalOutstandingDebt += interestAmount; // Update the states totalPendingFees += feeAmount; lastTimestampInterestAccrued = currentTimestamp; } /// @notice accrueInterest accrues interest to totalOutstandingDebt and totalPendingFees function accrueInterest() public { uint256 currentTimestamp = block.timestamp; // Get the current timestamp, get last timestamp accrued and set the last time accrued uint256 previousTimestamp = lastTimestampInterestAccrued; if (currentTimestamp == previousTimestamp) return; // If currentTimestamp and previousTimestamp is similar then return early uint256 previousVaultTotalOutstandingDebt = totalOutstandingDebt; // For event logging purpose uint256 previousVaultTotalPendingFees = totalPendingFees; uint256 borrowRatePerSecondInEther = getBorrowRatePerSecondInEther(); // Get borrow rate per second uint256 elapsedSeconds = currentTimestamp - previousTimestamp; // Get time elapsed since last accrued uint256 interestAmount = getInterestAmount(totalOutstandingDebt, borrowRatePerSecondInEther, elapsedSeconds); // Get the interest amount setVaultStates(interestAmount, currentTimestamp); // Update the vault states based on the interest amount: emit InterestAccrued(previousTimestamp, currentTimestamp, previousVaultTotalOutstandingDebt, previousVaultTotalPendingFees, borrowRatePerSecondInEther, elapsedSeconds, interestAmount, totalOutstandingDebt, totalPendingFees); } /// @notice getExchangeRateInEther get the current exchange rate of vault token in term of Vault's underlying token. function getExchangeRateInEther() public view returns (uint256) { uint256 totalSupply = totalSupply(); if (totalSupply == 0) { // If there is no supply, exchange rate is 1:1 return 1 ether; } else { // Otherwise: exchangeRate = (totalAvailable + totalOutstandingDebt) / totalSupply uint256 totalAvailable = getTotalAvailableCash(); uint256 totalAllUnderlyingAsset = totalAvailable + totalOutstandingDebt; uint256 exchangeRateInEther = (totalAllUnderlyingAsset * 1 ether) / totalSupply; return exchangeRateInEther; } } /// @notice Lender supplies underlying token into the vault and receives vault tokens in exchange function addSupply(uint256 amount) external nonReentrant { accrueInterest(); // Accrue interest if (maxTotalDeposit != 0) require(getTotalAvailableCash() + totalOutstandingDebt + amount < maxTotalDeposit, "!MCR"); // Max cap reached uint256 exchangeRateInEther = getExchangeRateInEther(); // Get the exchange rate uint256 mintedAmount = (amount * 1 ether) / exchangeRateInEther; // Calculate how much vault token we need to send to the lender IERC20(underlyingToken).safeTransferFrom(msg.sender, address(this), amount); // Transfer asset from lender to the vault _mint(msg.sender, mintedAmount); // Send vault token to the lender emit SupplyAdded(msg.sender, amount, exchangeRateInEther, mintedAmount); } /// @notice Lender burn vault tokens and receives underlying tokens in exchange function removeSupply(uint256 amount) external nonReentrant { accrueInterest(); // Accrue interest uint256 exchangeRateInEther = getExchangeRateInEther(); // Get the exchange rate uint256 redeemedAmount = (exchangeRateInEther * amount) / 1 ether; // Calculate how much underlying token we need to send to the lender IERC20(underlyingToken).safeTransfer(msg.sender, redeemedAmount); // Transfer Vault's underlying token from the vault to the lender _burn(msg.sender, amount); // Burn the vault tokens from the lender emit SupplyRemoved(msg.sender, amount, exchangeRateInEther, redeemedAmount); } /// @notice getDebtProportionRateInEther returns the proportion of borrow amount relative to the totalOutstandingDebt function getDebtProportionRateInEther() internal view returns (uint256 debtProportionRateInEther) { if (totalOutstandingDebt == 0 || totalDebtProportion == 0) { return 1 ether; } debtProportionRateInEther = (totalOutstandingDebt * 1 ether) / totalDebtProportion; } /// @notice getOutstandingDebt returns the debt owed by the RISE/DROP tokens function getOutstandingDebt(address token) public view returns (uint256) { // If there is no debt, return 0 if (totalOutstandingDebt == 0) return 0; // Calculate the outstanding debt // outstanding debt = debtProportion * debtProportionRate uint256 debtProportionRateInEther = getDebtProportionRateInEther(); uint256 a = (debtProportion[token] * debtProportionRateInEther); uint256 b = 1 ether; uint256 outstandingDebt = a / b + (a % b == 0 ? 0 : 1); // Rounds up instead of rounding down return outstandingDebt; } /// @notice setBorrowStates sets the debt of the RISE/DROP token function setBorrowStates(address token, uint256 borrowAmount) internal { uint256 debtProportionRateInEther = getDebtProportionRateInEther(); totalOutstandingDebt += borrowAmount; uint256 borrowProportion = (borrowAmount * 1 ether) / debtProportionRateInEther; totalDebtProportion += borrowProportion; debtProportion[token] = debtProportion[token] + borrowProportion; } /// @notice setRepayStates repay the debt of the RISE tokens function setRepayStates(address token, uint256 repayAmount) internal { uint256 debtProportionRateInEther = getDebtProportionRateInEther(); // Handle repay amount larger than existing total debt if (repayAmount > totalOutstandingDebt) { totalOutstandingDebt = 0; } else { totalOutstandingDebt -= repayAmount; } uint256 repayProportion = (repayAmount * 1 ether) / debtProportionRateInEther; if (repayProportion > totalDebtProportion) { totalDebtProportion = 0; } else { totalDebtProportion -= repayProportion; } if (repayProportion > debtProportion[token]) { debtProportion[token] -= 0; } else { debtProportion[token] -= repayProportion; } } /// @notice setVaultParameters updates the vault parameters. function setVaultParameters( uint256 u, uint256 s1, uint256 s2, uint256 mr, uint256 fee ) external onlyOwner { // Update vault parameters optimalUtilizationRateInEther = u; interestSlope1InEther = s1; interestSlope2InEther = s2; maxBorrowRatePerSecondInEther = mr; performanceFeeInEther = fee; emit ParametersUpdated(msg.sender, u, s1, s2, mr, fee); } /// @notice getVaultParameters returns the current vault parameters. function getVaultParameters() external view returns ( uint256 _optimalUtilizationRateInEther, uint256 _interestSlope1InEther, uint256 _interestSlope2InEther, uint256 _maxBorrowRatePerSecondInEther, uint256 _performanceFeeInEther ) { _optimalUtilizationRateInEther = optimalUtilizationRateInEther; _interestSlope1InEther = interestSlope1InEther; _interestSlope2InEther = interestSlope2InEther; _maxBorrowRatePerSecondInEther = maxBorrowRatePerSecondInEther; _performanceFeeInEther = performanceFeeInEther; } /// @notice setFeeRecipient sets the fee recipient address. function setFeeRecipient(address account) external onlyOwner { FEE_RECIPIENT = account; emit FeeRecipientUpdated(msg.sender, account); } /// @notice collectVaultPendingFees withdraws collected fees to the FEE_RECIPIENT address function collectVaultPendingFees() external { accrueInterest(); // Accrue interest uint256 collectedFees = totalPendingFees; IERC20(underlyingToken).safeTransfer(FEE_RECIPIENT, collectedFees); totalPendingFees = 0; emit FeeCollected(msg.sender, collectedFees, FEE_RECIPIENT); } /// @notice setVaultMaxTotalDeposit sets the max total deposit of the vault function setVaultMaxTotalDeposit(uint256 amount) external onlyOwner { maxTotalDeposit = amount; } } ////// src/interfaces/IRisedleERC20.sol /* pragma solidity >=0.8.9; */ /* pragma experimental ABIEncoderV2; */ interface IRisedleERC20 { function mint(address to, uint256 amount) external; function burn(address from, uint256 amount) external; } ////// src/interfaces/IRisedleOracle.sol /* pragma solidity >=0.8.9; */ /* pragma experimental ABIEncoderV2; */ interface IRisedleOracle { // Get price of the collateral based on the vault's underlying asset // For example ETH that trade 4000 USDC is returned as 4000 * 1e6 because USDC have 6 decimals function getPrice() external view returns (uint256 price); } ////// src/interfaces/IRisedleSwap.sol /* pragma solidity >=0.8.9; */ /* pragma experimental ABIEncoderV2; */ interface IRisedleSwap { /** * @notice Swap tokenIn to tokenOut * @param tokenIn The ERC20 address of token that we want to swap * @param tokenOut The ERC20 address of token that we want swap to * @param maxAmountIn The maximum amount of tokenIn to get the tokenOut with amountOut * @param amountOut The amount of tokenOut that we want to get * @return amountIn The amount of tokenIn that we spend to get the amountOut of tokenOut */ function swap( address tokenIn, address tokenOut, uint256 maxAmountIn, uint256 amountOut ) external returns (uint256 amountIn); } ////// src/interfaces/IWETH9.sol /* pragma solidity >=0.8.9; */ /* pragma experimental ABIEncoderV2; */ /* import { IERC20 } from "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol"; */ /// @title Interface for WETH9 /// @author bayu (github.com/pyk) interface IWETH9 is IERC20 { /// @notice Deposit ether to get wrapped ether function deposit() external payable; /// @notice Withdraw wrapped ether to get ether function withdraw(uint256) external; } ////// src/tokens/RisedleERC20.sol // Risedle ERC20 Contract // ERC20 contract to leverage and hedge token. // It allows the owner to mint/burn token. On the production setup, // only Risedle Vault can mint/burn this token. // It's been validated using dapp tools HEVM verification. // // Copyright (c) 2021 Bayu - All rights reserved // github: pyk // email: [email protected] /* pragma solidity >=0.8.9; */ /* pragma experimental ABIEncoderV2; */ /* import { ERC20 } from "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol"; */ /* import { Ownable } from "lib/openzeppelin-contracts/contracts/access/Ownable.sol"; */ /// @notice Risedle ERC20 implementation contract RisedleERC20 is ERC20, Ownable { uint8 private _decimals; /// @notice Construct new Risedle ERC20 token /// @param name The ERC20 token name /// @param symbol The ERC20 token symbol /// @param owner The ERC20 owner contract /// @param decimals_ The ERC20 token decimals constructor( string memory name, string memory symbol, address owner, uint8 decimals_ ) ERC20(name, symbol) { // Set the owner transferOwnership(owner); // Set the decimals _decimals = decimals_; } function decimals() public view virtual override returns (uint8) { return _decimals; } /// @notice mint mints new token to the specified address /// @dev Used when user deposit asset in the vault or mint new leverage/hedge /// token. Only owner can call this function. function mint(address to, uint256 amount) external onlyOwner { _mint(to, amount); } /// @notice burn burns the token from the specified address /// @dev Used when user withdraw asset in the vault or redeem leverage/hedge /// token. Only owner can call this function. function burn(address from, uint256 amount) external onlyOwner { _burn(from, amount); } } ////// src/RiseTokenVault.sol // Copyright (c) 2021 Bayu - All rights reserved /* pragma solidity >=0.8.9; */ /* pragma experimental ABIEncoderV2; */ /* import { IERC20 } from "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol"; */ /* import { SafeERC20 } from "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol"; */ /* import { IERC20Metadata } from "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol"; */ /* import { RisedleVault } from "./RisedleVault.sol"; */ /* import { RisedleERC20 } from "./tokens/RisedleERC20.sol"; */ /* import { IRisedleOracle } from "./interfaces/IRisedleOracle.sol"; */ /* import { IRisedleSwap } from "./interfaces/IRisedleSwap.sol"; */ /* import { IRisedleERC20 } from "./interfaces/IRisedleERC20.sol"; */ /* import { IWETH9 } from "./interfaces/IWETH9.sol"; */ /// @title Rise Token Vault /// @author bayu (github.com/pyk) /// @dev It implements leveraged tokens. User can mint leveraged tokens, redeem leveraged tokens and trigger the rebalance. Rebalance only get execute when the criteria is met. contract RiseTokenVault is RisedleVault { using SafeERC20 for IERC20; /// @notice RiseTokenMetadata contains the metadata of TOKENRISE struct RiseTokenMetadata { bool isETH; // True if the collateral is eth address token; // Address of ETF token ERC20, make sure this vault can mint & burn this token address collateral; // ETF underlying asset (e.g. WETH address) address oracleContract; // Contract address that implement IRisedleOracle interface address swapContract; // Contract address that implment IRisedleSwap interface uint256 maxSwapSlippageInEther; // Maximum swap slippage for mint, redeem and rebalancing (e.g. 1% is 0.01 ether or 0.01 * 1e18) uint256 initialPrice; // In term of vault's underlying asset (e.g. 100 USDC -> 100 * 1e6, coz is 6 decimals for USDC) uint256 feeInEther; // Creation and redemption fee in ether units (e.g. 0.1% is 0.001 ether) uint256 totalCollateralPlusFee; // Total amount of underlying managed by this ETF uint256 totalPendingFees; // Total amount of creation and redemption pending fees in ETF underlying uint256 minLeverageRatioInEther; // Minimum leverage ratio in ether units (e.g. 2x is 2 ether = 2*1e18) uint256 maxLeverageRatioInEther; // Maximum leverage ratio in ether units (e.g. 3x is 3 ether = 3*1e18) uint256 maxRebalancingValue; // The maximum value of buy/sell when rebalancing (e.g. 500K USDC is 500000 * 1e6) uint256 rebalancingStepInEther; // The rebalancing step in ether units (e.g. 0.2 is 0.2 ether or 0.2 * 1e18) uint256 maxTotalCollateral; // Limit the mint amount } /// @notice Mapping TOKENRISE to their metadata mapping(address => RiseTokenMetadata) riseTokens; event RiseTokenCreated(address indexed creator, address token); // Event emitted when new TOKENRISE is created event RiseTokenMinted(address indexed user, address indexed riseToken, uint256 mintedAmount); // Event emitted when TOKENRISE is minted event RiseTokenRebalanced(address indexed executor, uint256 previousLeverageRatioInEther); // Event emitted when TOKENRISE is successfully rebalanced event RiseTokenBurned(address indexed user, address indexed riseToken, uint256 redeemedAmount); // Event emitted when TOKENRISE is burned event MaxTotalCollateralUpdated(address indexed token, uint256 newMaxTotalCollateral); // Event emitted when max collateral is set event OracleContractUpdated(address indexed token, address indexed oracle); // Event emitted when new oracle contract is set event SwapContractUpdated(address indexed token, address indexed swap); // Event emitted when new swap contract is set /// @notice Construct new RiseTokenVault constructor( string memory name, // The name of the vault's token (e.g. Risedle USDC Vault) string memory symbol, // The symbol of the vault's token (e.g rvUSDC) address underlying, // The ERC20 address of the vault's underlying token (e.g. address of USDC token) address feeRecipient // Vault's fee recipient ) RisedleVault(name, symbol, underlying, feeRecipient) {} /// @notice create creates new TOKENRISE function create( bool isETH, // True if the collateral is ETH address tokenRiseAddress, // ERC20 token address that only RiseTokenVault can mint and burn address collateral, // The underlying token of TOKENRISE (e.g. WBTC), it's WETH if the isETH is true address oracleContract, // Contract address that implement IRisedleOracle interface address swapContract, // Uniswap V3 like token swapper uint256 maxSwapSlippageInEther, // Maximum slippage when mint, redeem and rebalancing (1% is 0.01 ether or 0.01*1e18) uint256 initialPrice, // Initial price of the TOKENRISE based on the Vault's underlying asset (e.g. 100 USDC => 100 * 1e6) uint256 feeInEther, // Creation and redemption fee in ether units (e.g. 0.001 ether = 0.1%) uint256 minLeverageRatioInEther, // Minimum leverage ratio in ether units (e.g. 2x is 2 ether = 2*1e18) uint256 maxLeverageRatioInEther, // Maximum leverage ratio in ether units (e.g. 3x is 3 ether = 3*1e18) uint256 maxRebalancingValue, // The maximum value of buy/sell when rebalancing (e.g. 500K USDC is 500000 * 1e6) uint256 rebalancingStepInEther // The rebalancing step in ether units (e.g. 0.2 is 0.2 ether or 0.2 * 1e18) ) external onlyOwner { RiseTokenMetadata memory riseTokenMetadata = riseTokens[tokenRiseAddress]; require(riseTokenMetadata.feeInEther == 0, "!AE"); // Make sure token metadata is not exists // Create new Rise metadata riseTokens[tokenRiseAddress] = RiseTokenMetadata({ isETH: isETH, token: tokenRiseAddress, collateral: collateral, oracleContract: oracleContract, swapContract: swapContract, maxSwapSlippageInEther: maxSwapSlippageInEther, initialPrice: initialPrice, feeInEther: feeInEther, minLeverageRatioInEther: minLeverageRatioInEther, maxLeverageRatioInEther: maxLeverageRatioInEther, maxRebalancingValue: maxRebalancingValue, rebalancingStepInEther: rebalancingStepInEther, totalCollateralPlusFee: 0, totalPendingFees: 0, maxTotalCollateral: 0 }); // Emit event emit RiseTokenCreated(msg.sender, tokenRiseAddress); } /// @notice getMetadata returns the metadata of the TOKENRISE function getMetadata(address token) external view returns (RiseTokenMetadata memory) { return riseTokens[token]; } /// @notice calculateCollateralPerRiseToken returns the collateral shares per TOKENRISE function calculateCollateralPerRiseToken( uint256 riseTokenSupply, // The total supply of the TOKENRISE uint256 totalCollateralPlusFee, // The total collateral managed by the TOKENRISE uint256 totalPendingFees, // The total pending fees in the TOKENRISE uint8 collateralDecimals // The collateral decimals (e.g. ETH is 18 decimals) ) internal pure returns (uint256 collateralPerRiseToken) { if (riseTokenSupply == 0) return 0; collateralPerRiseToken = ((totalCollateralPlusFee - totalPendingFees) * (10**collateralDecimals)) / riseTokenSupply; // Get collateral per TOKENRISE } /// @notice getCollateralPerRiseToken returns the collateral shares per TOKENRISE function getCollateralPerRiseToken(address token) external view returns (uint256 collateralPerRiseToken) { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; if (riseTokenMetadata.feeInEther == 0) return 0; // Make sure the TOKENRISE is exists uint256 riseTokenSupply = IERC20(riseTokenMetadata.token).totalSupply(); uint8 collateralDecimals = IERC20Metadata(riseTokenMetadata.token).decimals(); collateralPerRiseToken = calculateCollateralPerRiseToken(riseTokenSupply, riseTokenMetadata.totalCollateralPlusFee, riseTokenMetadata.totalPendingFees, collateralDecimals); } /// @notice calculateDebtPerRiseToken returns the debt shares per TOKENRISE function calculateDebtPerRiseToken( address token, // The address of TOKENRISE (ERC20) uint256 totalSupply, // The current total supply of the TOKENRISE uint8 collateralDecimals // The decimals of the collateral token (e.g. ETH have 18 decimals) ) internal view returns (uint256 debtPerRiseToken) { if (totalSupply == 0) return 0; uint256 totalDebt = getOutstandingDebt(token); // Get total TOKENRISE debt if (totalDebt == 0) return 0; uint256 a = (totalDebt * (10**collateralDecimals)); uint256 b = totalSupply; debtPerRiseToken = a / b + (a % b == 0 ? 0 : 1); // Rounds up instead of rounding down } /// @notice getDebtPerRiseToken returns the debt shares per TOKENRISE function getDebtPerRiseToken(address token) external view returns (uint256 debtPerRiseToken) { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; if (riseTokenMetadata.feeInEther == 0) return 0; // Make sure the TOKENRISE is exists uint256 totalSupply = IERC20(riseTokenMetadata.token).totalSupply(); uint8 collateralDecimals = IERC20Metadata(riseTokenMetadata.token).decimals(); debtPerRiseToken = calculateDebtPerRiseToken(riseTokenMetadata.token, totalSupply, collateralDecimals); } /// @notice calculateNAV calculates the net-asset value of the ETF function calculateNAV( uint256 collateralPerRiseToken, // The amount of collateral per TOKENRISE (e.g 0.5 ETH is 0.5*1e18) uint256 debtPerRiseToken, // The amount of debt per TOKENRISE (e.g. 50 USDC is 50*1e6) uint256 collateralPrice, // The collateral price in term of supply asset (e.g 100 USDC is 100*1e6) uint256 etfInitialPrice, // The initial price of the ETF in terms od supply asset (e.g. 100 USDC is 100*1e6) uint8 collateralDecimals // The decimals of the collateral token ) internal pure returns (uint256 nav) { if (collateralPerRiseToken == 0 || debtPerRiseToken == 0) return etfInitialPrice; uint256 collateralValuePerRiseToken = (collateralPerRiseToken * collateralPrice) / (10**collateralDecimals); // Get the collateral value in term of the supply nav = collateralValuePerRiseToken - debtPerRiseToken; // Calculate the NAV } /// @notice Get the net-asset value of the TOKENRISE function getNAV(address token) public view returns (uint256 nav) { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; if (riseTokenMetadata.feeInEther == 0) return 0; // Make sure the TOKENRISE is exists uint256 collateralPrice = IRisedleOracle(riseTokenMetadata.oracleContract).getPrice(); // For example WETH/USDC would trading around 4000 USDC (4000 * 1e6) uint256 totalSupply = IERC20(riseTokenMetadata.token).totalSupply(); // Get collateral per TOKENRISE and debt per TOKENRISE uint8 collateralDecimals = IERC20Metadata(riseTokenMetadata.token).decimals(); uint256 collateralPerRiseToken = calculateCollateralPerRiseToken(totalSupply, riseTokenMetadata.totalCollateralPlusFee, riseTokenMetadata.totalPendingFees, collateralDecimals); uint256 debtPerRiseToken = calculateDebtPerRiseToken(riseTokenMetadata.token, totalSupply, collateralDecimals); nav = calculateNAV(collateralPerRiseToken, debtPerRiseToken, collateralPrice, riseTokenMetadata.initialPrice, collateralDecimals); } /// @notice getCollateralAndFeeAmount splits collateral and fee amount function getCollateralAndFeeAmount(uint256 amount, uint256 feeInEther) internal pure returns (uint256 collateralAmount, uint256 feeAmount) { feeAmount = (amount * feeInEther) / 1 ether; collateralAmount = amount - feeAmount; } /// @notice swap swaps the inputToken to outputToken function swap( address swapContract, // The address of swap contract address inputToken, // The address of the token that we want to sell address outputToken, // The address of the output token that we want to buy uint256 maxInputAmount, // The maximum amount of input token that we want to sell uint256 outputAmount // The amount of output token that we want to buy ) internal returns (uint256 inputTokenSold) { IERC20(inputToken).safeApprove(swapContract, maxInputAmount); // Allow swap contract to spend the input token from the contract inputTokenSold = IRisedleSwap(swapContract).swap(inputToken, outputToken, maxInputAmount, outputAmount); // Swap inputToken to outputToken IERC20(inputToken).safeApprove(swapContract, 0); // Reset the approval } /// @notice getMintAmount returns the amount of TOKENRISE need to be minted function getMintAmount( uint256 nav, // The net asset value of TOKENRISE (e.g. 200 USDC is 200 * 1e6) uint256 collateralAmount, // The amount of the collateral (e.g. 1 ETH is 1e18) uint256 collateralPrice, // The price of the collateral (e.g. 4000 USDC is 4000 * 1e6) uint256 borrowAmount, // The amount of borrow (e.g 200 USDC is 200 * 1e6) uint8 collateralDecimals // The decimals of the collateral token (e.g. ETH have 18 decimals) ) internal pure returns (uint256 mintedAmount) { // Calculate the total investment uint256 totalInvestment = ((2 * collateralAmount * collateralPrice) / (10**collateralDecimals)) - borrowAmount; // totalInvestment = (2 x collateralValue) - borrowAmount mintedAmount = (totalInvestment * (10**collateralDecimals)) / nav; // Get minted amount } /// @notice Mint new TOKENRISE function mintRiseToken( address token, // The address of TOKENRISE address minter, // The minter address address recipient, // The TOKENRISE recipient uint256 amount // The Amount ) internal nonReentrant { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists if (riseTokenMetadata.maxTotalCollateral > 0) require(riseTokenMetadata.totalCollateralPlusFee + (2 * amount) < riseTokenMetadata.maxTotalCollateral, "!CIR"); // Cap is reached accrueInterest(); // Accrue interest uint256 nav = getNAV(token); // For example, If ETHRISE nav is 200 USDC, it will returns 200 * 1e6 if (minter != address(this)) IERC20(riseTokenMetadata.collateral).safeTransferFrom(minter, address(this), amount); // Don't get WETH from the user (uint256 collateralAmount, uint256 feeAmount) = getCollateralAndFeeAmount(amount, riseTokenMetadata.feeInEther); // Get the collateral and fee amount riseTokens[riseTokenMetadata.token].totalCollateralPlusFee += ((2 * collateralAmount) + feeAmount); // Update the TOKENRISE metadata riseTokens[riseTokenMetadata.token].totalPendingFees += feeAmount; uint256 collateralPrice = IRisedleOracle(riseTokenMetadata.oracleContract).getPrice(); // Get the current price of collateral in term of vault underlying asset uint8 collateralDecimals = IERC20Metadata(riseTokenMetadata.collateral).decimals(); uint256 maxCollateralPrice = collateralPrice + ((riseTokenMetadata.maxSwapSlippageInEther * collateralPrice) / 1 ether); // Maximum slippage from the oracle price; It can be +X% from the oracle price uint256 maxBorrowAmount = (collateralAmount * maxCollateralPrice) / (10**collateralDecimals); // Calculate the maximum borrow amount require(getTotalAvailableCash() > maxBorrowAmount, "!NES"); // Make sure we do have enough vault's underlying available uint256 borrowedAmount = swap(riseTokenMetadata.swapContract, underlyingToken, riseTokenMetadata.collateral, maxBorrowAmount, collateralAmount); setBorrowStates(token, borrowedAmount); // Set TOKENRISE debt states uint256 mintedAmount = getMintAmount(nav, collateralAmount, collateralPrice, borrowedAmount, collateralDecimals); // Calculate minted amount IRisedleERC20(token).mint(recipient, mintedAmount); // Transfer TOKENRISE to the caller emit RiseTokenMinted(recipient, token, mintedAmount); } /// @notice Mint new ETHRISE. The ETH will automatically wrapped to WETH first function mint(address token) external payable { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists require(riseTokenMetadata.isETH, "!TRNE"); // TOKENRISE is not ETH enabled require(msg.value > 0, "!EIZ"); // ETH is zero IWETH9(riseTokenMetadata.collateral).deposit{ value: msg.value }(); // Wrap the ETH to WETH mintRiseToken(token, address(this), msg.sender, msg.value); // Mint the ETHRISE token as the contract and send the ETHRISE to the user } /// @notice Mint new ETHRISE and sent minted token to the recipient function mint(address token, address recipient) external payable { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists require(riseTokenMetadata.isETH, "!TRNE"); // TOKENRISE is not ETH enabled require(msg.value > 0, "!EIZ"); // ETH is zero IWETH9(riseTokenMetadata.collateral).deposit{ value: msg.value }(); // Wrap the ETH to WETH mintRiseToken(token, address(this), recipient, msg.value); // Mint the ETHRISE token as the contract and send the ETHRISE to the user } /// @notice Mint new ERC20RISE function mint(address token, uint256 amount) external { mintRiseToken(token, msg.sender, msg.sender, amount); } /// @notice Mint new ERC20RISE with custom recipient function mint( address token, address recipient, uint256 amount ) external { mintRiseToken(token, msg.sender, recipient, amount); } /// @notice calculateLeverageRatio calculates leverage ratio function calculateLeverageRatio( uint256 collateralPerRiseToken, uint256 debtPerRiseToken, uint256 collateralPrice, uint256 etfInitialPrice, uint8 collateralDecimals ) internal pure returns (uint256 leverageRatioInEther) { uint256 collateralValuePerRiseToken = (collateralPerRiseToken * collateralPrice) / (10**collateralDecimals); uint256 nav = calculateNAV(collateralPerRiseToken, debtPerRiseToken, collateralPrice, etfInitialPrice, collateralDecimals); leverageRatioInEther = (collateralValuePerRiseToken * 1 ether) / nav; } /// @notice Get the leverage ratio function getLeverageRatioInEther(address token) external view returns (uint256 leverageRatioInEther) { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; if (riseTokenMetadata.feeInEther == 0) return 0; // Make sure the TOKENRISE is exists uint256 totalSupply = IERC20(riseTokenMetadata.token).totalSupply(); uint8 collateralDecimals = IERC20Metadata(riseTokenMetadata.collateral).decimals(); uint256 collateralPerRiseToken = calculateCollateralPerRiseToken(totalSupply, riseTokenMetadata.totalCollateralPlusFee, riseTokenMetadata.totalPendingFees, collateralDecimals); uint256 debtPerRiseToken = calculateDebtPerRiseToken(riseTokenMetadata.token, totalSupply, collateralDecimals); uint256 collateralPrice = IRisedleOracle(riseTokenMetadata.oracleContract).getPrice(); leverageRatioInEther = calculateLeverageRatio(collateralPerRiseToken, debtPerRiseToken, collateralPrice, riseTokenMetadata.initialPrice, collateralDecimals); } /// @notice Run the rebalancing function rebalance(address token) external nonReentrant { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists accrueInterest(); // Accrue interest // Otherwise get the current leverage ratio uint256 totalSupply = IERC20(riseTokenMetadata.token).totalSupply(); uint256 collateralPrice = IRisedleOracle(riseTokenMetadata.oracleContract).getPrice(); uint8 collateralDecimals = IERC20Metadata(riseTokenMetadata.collateral).decimals(); uint256 collateralPerRiseToken = calculateCollateralPerRiseToken(totalSupply, riseTokenMetadata.totalCollateralPlusFee, riseTokenMetadata.totalPendingFees, collateralDecimals); uint256 debtPerRiseToken = calculateDebtPerRiseToken(riseTokenMetadata.token, totalSupply, collateralDecimals); uint256 leverageRatioInEther = calculateLeverageRatio(collateralPerRiseToken, debtPerRiseToken, collateralPrice, riseTokenMetadata.initialPrice, collateralDecimals); uint256 nav = calculateNAV(collateralPerRiseToken, debtPerRiseToken, collateralPrice, riseTokenMetadata.initialPrice, collateralDecimals); require(leverageRatioInEther < riseTokenMetadata.minLeverageRatioInEther || leverageRatioInEther > riseTokenMetadata.maxLeverageRatioInEther, "!LRIR"); // Leverage ratio in range uint256 borrowOrRepayAmount = (riseTokenMetadata.rebalancingStepInEther * ((nav * totalSupply) / (10**collateralDecimals))) / 1 ether; uint256 collateralAmount = (borrowOrRepayAmount * (10**collateralDecimals)) / collateralPrice; // Leveraging up when: leverage ratio < min leverage ratio. Borrow more USDCa and Swap USDC to collateral token if (leverageRatioInEther < riseTokenMetadata.minLeverageRatioInEther) { uint256 maximumCollateralPrice = collateralPrice + ((riseTokenMetadata.maxSwapSlippageInEther * collateralPrice) / 1 ether); uint256 maxBorrowAmount = (collateralAmount * maximumCollateralPrice) / (10**collateralDecimals); if (maxBorrowAmount > riseTokenMetadata.maxRebalancingValue) { maxBorrowAmount = riseTokenMetadata.maxRebalancingValue; } uint256 borrowedAmount = swap(riseTokenMetadata.swapContract, underlyingToken, riseTokenMetadata.collateral, maxBorrowAmount, collateralAmount); setBorrowStates(token, borrowedAmount); riseTokens[riseTokenMetadata.token].totalCollateralPlusFee += collateralAmount; } // Leveraging down when: leverage ratio > max leverage ratio. Swap collateral to USDC and Repay the debt if (leverageRatioInEther > riseTokenMetadata.maxLeverageRatioInEther) { uint256 minimumCollateralPrice = collateralPrice - ((riseTokenMetadata.maxSwapSlippageInEther * collateralPrice) / 1 ether); uint256 maxCollateralAmount = (borrowOrRepayAmount * (10**collateralDecimals)) / minimumCollateralPrice; if (borrowOrRepayAmount > riseTokenMetadata.maxRebalancingValue) { maxCollateralAmount = (riseTokenMetadata.maxRebalancingValue * (10**collateralDecimals)) / minimumCollateralPrice; } uint256 collateralSoldAmount = swap(riseTokenMetadata.swapContract, riseTokenMetadata.collateral, underlyingToken, maxCollateralAmount, borrowOrRepayAmount); setRepayStates(token, borrowOrRepayAmount); riseTokens[riseTokenMetadata.token].totalCollateralPlusFee -= collateralSoldAmount; } emit RiseTokenRebalanced(msg.sender, leverageRatioInEther); } function updateRedeemStates( address token, // TOKENRISE address uint256 collateral, // Collateral amount uint256 fee // Fee amount ) internal { riseTokens[token].totalCollateralPlusFee -= collateral; riseTokens[token].totalPendingFees += fee; } function calculateRedeemAmount(RiseTokenMetadata memory riseTokenMetadata, uint256 amount) internal returns (uint256 redeemAmount) { uint256 totalSupply = IERC20(riseTokenMetadata.token).totalSupply(); uint8 collateralDecimals = IERC20Metadata(riseTokenMetadata.collateral).decimals(); uint256 collateralPrice = IRisedleOracle(riseTokenMetadata.oracleContract).getPrice(); uint256 collateralPerRiseToken = calculateCollateralPerRiseToken(totalSupply, riseTokenMetadata.totalCollateralPlusFee, riseTokenMetadata.totalPendingFees, collateralDecimals); uint256 debtPerRiseToken = calculateDebtPerRiseToken(riseTokenMetadata.token, totalSupply, collateralDecimals); uint256 repayAmount = (debtPerRiseToken * amount) / (10**collateralDecimals); setRepayStates(riseTokenMetadata.token, repayAmount); uint256 collateralOwnedByUser = (amount * collateralPerRiseToken) / (10**collateralDecimals); uint256 minimumCollateralPrice = collateralPrice - ((riseTokenMetadata.maxSwapSlippageInEther * collateralPrice) / 1 ether); uint256 maxCollateralAmount = (((repayAmount * (10**collateralDecimals)) / ((collateralOwnedByUser * minimumCollateralPrice) / (10**collateralDecimals))) * collateralOwnedByUser) / (10**collateralDecimals); uint256 collateralSoldAmount = swap(riseTokenMetadata.swapContract, riseTokenMetadata.collateral, underlyingToken, maxCollateralAmount, repayAmount); uint256 feeAmount; (redeemAmount, feeAmount) = getCollateralAndFeeAmount(collateralOwnedByUser - collateralSoldAmount, riseTokenMetadata.feeInEther); updateRedeemStates(riseTokenMetadata.token, (collateralOwnedByUser - feeAmount), feeAmount); } /// @notice redeem Burn the TOKENRISE then send the collateral token to the sender function redeem(address token, uint256 amount) external nonReentrant { accrueInterest(); // Accrue interest RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists uint256 redeemAmount = calculateRedeemAmount(riseTokenMetadata, amount); IRisedleERC20(token).burn(msg.sender, amount); // Send the remaining collateral to the investor minus the fee if (riseTokenMetadata.isETH) { IWETH9(riseTokenMetadata.collateral).withdraw(redeemAmount); (bool success, ) = msg.sender.call{ value: redeemAmount }(""); require(success, "!ERF"); // ETH Redeem failed } else { IERC20(riseTokenMetadata.collateral).safeTransfer(msg.sender, redeemAmount); } emit RiseTokenBurned(msg.sender, token, redeemAmount); } /// @notice collectPendingFees withdraws collected fees to the FEE_RECIPIENT address function collectPendingFees(address token) external { accrueInterest(); // Accrue interest RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists IERC20(riseTokenMetadata.collateral).safeTransfer(FEE_RECIPIENT, riseTokenMetadata.totalPendingFees); riseTokens[token].totalCollateralPlusFee -= riseTokenMetadata.totalPendingFees; riseTokens[token].totalPendingFees = 0; emit FeeCollected(msg.sender, riseTokenMetadata.totalPendingFees, FEE_RECIPIENT); } /// @notice Set the cap function setMaxTotalCollateral(address token, uint256 maxTotalCollateral) external onlyOwner { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists riseTokens[token].maxTotalCollateral = maxTotalCollateral; emit MaxTotalCollateralUpdated(token, maxTotalCollateral); } /// @notice Set the oracle contract function setOracleContract(address token, address newOracle) external onlyOwner { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists riseTokens[token].oracleContract = newOracle; emit OracleContractUpdated(token, newOracle); } /// @notice Set the swap contract function setSwapContract(address token, address newSwap) external onlyOwner { RiseTokenMetadata memory riseTokenMetadata = riseTokens[token]; require(riseTokenMetadata.feeInEther > 0, "!RTNE"); // Make sure the TOKENRISE is exists riseTokens[token].swapContract = newSwap; emit SwapContractUpdated(token, newSwap); } /// @notice Receive ETH receive() external payable {} }
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Contract ABI
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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000ff970a61a04b1ca14834a43f5de4533ebddb5cc800000000000000000000000056b4a9675c52144c99f676835e83d5625cb47202000000000000000000000000000000000000000000000000000000000000001552697365646c65205661756c742045544855534443000000000000000000000000000000000000000000000000000000000000000000000000000000000000097276455448555344430000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : name (string): Risedle Vault ETHUSDC
Arg [1] : symbol (string): rvETHUSDC
Arg [2] : underlying (address): 0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8
Arg [3] : feeRecipient (address): 0x56b4a9675c52144C99F676835e83d5625CB47202
-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 000000000000000000000000ff970a61a04b1ca14834a43f5de4533ebddb5cc8
Arg [3] : 00000000000000000000000056b4a9675c52144c99f676835e83d5625cb47202
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000015
Arg [5] : 52697365646c65205661756c7420455448555344430000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000009
Arg [7] : 7276455448555344430000000000000000000000000000000000000000000000
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.