Uproot

Address: 0xA1C10036F5398601f34d11F0be7Da26a8875Fb0d

Balance (XRP): 0 XRP

Bytecode: 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Oracle.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.20;
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract Oracle is AccessControl {
    bytes32 public constant RESPONDER_ROLE = keccak256("RESPONDER_ROLE");
    bytes32 public constant MANAGER_ROLE = keccak256("MANAGER_ROLE");

    IERC20 public syloToken;

    struct Request {
        uint32 tokenId;
        uint256 timestamp;
        bool processed;
    }

    struct Response {
        uint256 timestamp;
        uint256 value;
        uint256 requestId;
    }

    uint256 public requestId = 0;
    uint256 public pricePerRequest = 10 ether; // 10 SYLO
    uint256 public withdrawable = 0;

    mapping(uint32 => bool) public tokens; //         tokenId => bool
    mapping(uint32 => string) public tokenNames; //   tokenId => string
    mapping(uint256 => Response) public tokenData; // requestId => Response
    mapping(uint256 => Request) public requests; //   requestId => Request
    mapping(uint256 => Response) public responses; // requestId => Response
    mapping(address => uint256) public deposits; //   wallet => amount

    /** Events */
    event Requested(uint256 indexed requestId, string indexed token);
    event Responded(uint256 indexed requestId);
    event TokenUpdated(string indexed token, bool state);
    event Deposited(uint256 indexed amount, address indexed sender);
    event WithdrawalForUser(uint256 indexed amount, address indexed from);
    event AdminWithdrawal(uint256 amount, address indexed recipient);
    event UpdatedAmountPerRequest();

    /** Errors */
    error AlreadyFulfilled();
    error NotAllowedToken();
    error InvalidValue();
    error InsufficientBalance();

    constructor(
        address _responder,
        uint32[] memory _tokens,
        IERC20 _syloToken,
        address _initialManager
    ) {
        /** Grant roles */
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        grantRole(RESPONDER_ROLE, _responder);
        grantRole(MANAGER_ROLE, _initialManager);
        /** Set root token */
        syloToken = _syloToken;
        /** Set initial allowed tokens */
        for (uint256 i = 0; i < _tokens.length; i++) {
            tokens[_tokens[i]] = true;
        }
    }

    /**
     * @notice Request fresh data
     * @param _token - The desired token
     */
    function createRequest(uint32 _token) public returns (uint) {
        if (!tokens[_token]) revert NotAllowedToken();
        if (deposits[msg.sender] < pricePerRequest)
            revert InsufficientBalance();
        deposits[msg.sender] -= pricePerRequest;
        withdrawable += pricePerRequest;
        requestId++;
        Request memory request = Request(_token, block.timestamp, false);
        requests[requestId] = request;
        emit Requested({requestId: requestId, token: tokenNames[_token]});
        return requestId;
    }

    /**
     * @notice Request fresh data
     * @param _tokens - The desired token
     */
    function createRequests(
        uint32[] calldata _tokens
    ) public returns (uint[] memory) {
        uint256 am = _tokens.length;
        uint[] memory requestIds = new uint[](am);
        if (deposits[msg.sender] < (pricePerRequest * am))
            revert InsufficientBalance();
        deposits[msg.sender] -= (pricePerRequest * am);
        withdrawable += (pricePerRequest * am);
        for (uint256 i = 0; i < _tokens.length; i++) {
            uint32 _token = _tokens[i];
            if (!tokens[_token]) revert NotAllowedToken();
            requestId++;
            Request memory request = Request(_token, block.timestamp, false);
            requests[requestId] = request;
            emit Requested({requestId: requestId, token: tokenNames[_token]});
            requestIds[i] = requestId;
        }

        return requestIds;
    }

    /**
     * @notice Get response
     * @param _requestId - The requestId
     */
    function getResponse(
        uint256 _requestId
    ) public view returns (Response memory) {
        return responses[_requestId];
    }

    /**
     * @notice Check whether requestId was processed
     * @param _requestId - The requestId
     */
    function isProcessed(uint256 _requestId) public view returns (bool) {
        return requests[_requestId].processed;
    }

    /**
     * @notice Get pending requests
     */
    function getPendingRequests(
        bool _breakOnProcessed
    ) public view returns (uint[] memory) {
        uint[] memory requestIds = new uint[](1000);
        uint256 index = 0;
        for (uint256 i = requestId; i >= 1; i--) {
            if (!requests[i].processed) {
                requestIds[index] = i;
            } else {
                if (_breakOnProcessed) {
                    break;
                }
            }
            index++;
            if (index == requestIds.length) {
                break;
            }
        }
        return requestIds;
    }

    /**
     * @notice Get latest token data
     * @param _tokens - Array of tokens
     */
    function getLatestData(
        uint32[] memory _tokens
    ) public view returns (Response[] memory) {
        Response[] memory x = new Response[](_tokens.length);
        for (uint256 i = 0; i < _tokens.length; i++) {
            x[i] = tokenData[_tokens[i]];
        }
        return x;
    }

    /**
     * @notice Deposit ROOT into the contract
     * @param _amount - The amount you wish to deposit
     * @param _sender - Whoever gets the amount
     */
    function deposit(uint256 _amount, address _sender) external {
        if (syloToken.balanceOf(msg.sender) < _amount)
            revert InsufficientBalance();
        syloToken.transferFrom(msg.sender, address(this), _amount);
        deposits[_sender] += _amount;
        emit Deposited({amount: _amount, sender: _sender});
    }

    /**
     * @notice Get the remaining requests for an address
     * @param _address - The address
     */
    function getRemainingRequests(address _address) public view returns (uint) {
        return deposits[_address] / pricePerRequest;
    }

    /** Admin functions */

    /**
     * @notice Allows admin to create response for request
     * @param _value - The data
     * @param _requestId - The requestId
     */
    function createResponse(
        uint256 _value,
        uint256 _requestId
    ) external onlyRole(RESPONDER_ROLE) {
        if (isProcessed(_requestId)) revert AlreadyFulfilled();
        if (_value <= 0) revert InvalidValue();
        Response memory response = Response(
            block.timestamp,
            _value,
            _requestId
        );
        if (
            block.timestamp > tokenData[requests[_requestId].tokenId].timestamp
        ) {
            tokenData[requests[_requestId].tokenId] = response;
        }
        responses[_requestId] = response;
        requests[_requestId].processed = true;
        emit Responded({requestId: _requestId});
    }

    /**
     * @notice Allow or disallow a token
     * @param _token - The token symbol
     * @param _state - true/false
     */
    function updateToken(
        uint32 _token,
        string calldata _name,
        bool _state
    ) external onlyRole(MANAGER_ROLE) {
        tokenNames[_token] = _name;
        tokens[_token] = _state;
        emit TokenUpdated({token: tokenNames[_token], state: _state});
    }

    /**
     * @notice Allows admin to withdraw tokens to a desired wallet for a user
     * @param _amount - The amount of ROOT
     * @param _from - The address to deduct from
     * @param _recipient - The to address
     */
    function withdrawForUser(
        uint256 _amount,
        address _from,
        address _recipient
    ) external onlyRole(MANAGER_ROLE) {
        if (deposits[_from] < _amount) revert InsufficientBalance();
        deposits[_from] -= _amount;
        syloToken.transfer(_recipient, _amount);
        emit WithdrawalForUser({amount: _amount, from: _from});
    }

    function depositForUser(
        uint256 _amount,
        address _recipient
    ) external onlyRole(MANAGER_ROLE) {
        if (syloToken.balanceOf(address(this)) < _amount)
            revert InsufficientBalance();
        deposits[_recipient] += _amount;
        emit Deposited({amount: _amount, sender: _recipient});
    }

    /**
     * @notice Allows admin to update pricing
     * @param _amount - The new price
     */
    function updateAmountPerRequest(
        uint256 _amount
    ) external onlyRole(MANAGER_ROLE) {
        pricePerRequest = _amount;
        emit UpdatedAmountPerRequest();
    }

    /**
     * @notice Allows admin to withdraw withdrawable funds
     * @param _recipient - The to address
     */
    function withdrawFunds(
        uint256 _amount,
        address _recipient
    ) external onlyRole(MANAGER_ROLE) {
        if (withdrawable < _amount) revert InsufficientBalance();
        uint256 amount = _amount > 0 ? _amount : withdrawable;
        withdrawable -= amount;
        syloToken.transfer(_recipient, amount);
        emit AdminWithdrawal(amount, _recipient);
    }
}

AccessControl.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "./IAccessControl.sol";
import {Context} from "../utils/Context.sol";
import {ERC165} from "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    mapping(bytes32 role => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual returns (bool) {
        return _roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        if (!hasRole(role, account)) {
            _roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        if (hasRole(role, account)) {
            _roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

IAccessControl.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (access/IAccessControl.sol)

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC-165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call. This account bears the admin role (for the granted role).
     * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     */
    function renounceRole(bytes32 role, address callerConfirmation) external;
}

IERC20.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

Context.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

ERC165.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC-165 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);
 * }
 * ```
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

IERC165.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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);
}

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