Contract 0xF2d25805576c5615786aCa61C21A3C129CD1caBB

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0x801d0352710a34e7adcfe1247a2424cbe03067305b1704b8ead7acbcb2198351Add New Price Fe...184434452021-09-03 4:01:4988 days 16 hrs ago0x627306090abab3a6e1400e9345bc60c78a8bef57 IN  0xf2d25805576c5615786aca61c21a3c129cd1cabb0 MATIC0.000130502
0x045335d51122cae4f2f2518c9ba530b9f68ee6eca72e315ae79a4e9770d2619eAdd New Price Fe...184434442021-09-03 4:01:4788 days 16 hrs ago0x627306090abab3a6e1400e9345bc60c78a8bef57 IN  0xf2d25805576c5615786aca61c21a3c129cd1cabb0 MATIC0.000130526
0x2b9810ea38c2e79afeef2f9d4357291c2cf793dc23aa28fe802a6829fb107e09Add New Price Fe...184434422021-09-03 4:01:4388 days 16 hrs ago0x627306090abab3a6e1400e9345bc60c78a8bef57 IN  0xf2d25805576c5615786aca61c21a3c129cd1cabb0 MATIC0.000127666
0xd4a339a3834015f17b3cb246477824502e0aba9d2e2c40bba2aa5537ae9631c3Add New Oracle184434412021-09-03 4:01:4188 days 16 hrs ago0x627306090abab3a6e1400e9345bc60c78a8bef57 IN  0xf2d25805576c5615786aca61c21a3c129cd1cabb0 MATIC0.000101711
0xbb16cc784562cf6e9b76befd7d63ba25b6ab45ed7b41edc2df66aec10c6096e3Change Config Ad...184434392021-09-03 4:01:3788 days 16 hrs ago0x627306090abab3a6e1400e9345bc60c78a8bef57 IN  0xf2d25805576c5615786aca61c21a3c129cd1cabb0 MATIC0.000044107
0x60a073acc8b75c4dc00ab0e0cb70660b1b8a0b994ed2dbbbaf49647e2058dff80x60806040184433712021-09-03 3:59:1788 days 16 hrs ago0x627306090abab3a6e1400e9345bc60c78a8bef57 IN  Contract Creation0 MATIC0.000830581
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Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x933734ABD0e0549eFB16A341bAE888Df3992d08d

Contract Name:
PlatformData

Compiler Version
v0.8.2+commit.661d1103

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, GNU GPLv3 license

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 12 : AccessControl.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    function hasRole(bytes32 role, address account) external view returns (bool);
    function getRoleAdmin(bytes32 role) external view returns (bytes32);
    function grantRole(bytes32 role, address account) external;
    function revokeRole(bytes32 role, address account) external;
    function renounceRole(bytes32 role, address account) external;
}

/**
 * @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:
 *
 * ```
 * 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}:
 *
 * ```
 * 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.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping (address => bool) members;
        bytes32 adminRole;
    }

    mapping (bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @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.
     *
     * _Available since v3.1._
     */
    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, an admin role
     * bearer except when using {_setupRole}.
     */
    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 Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{20}) is missing role (0x[0-9a-f]{32})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

    /**
     * @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 override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{20}) is missing role (0x[0-9a-f]{32})$/
     */
    function _checkRole(bytes32 role, address account) internal view {
        if(!hasRole(role, account)) {
            revert(string(abi.encodePacked(
                "AccessControl: account ",
                Strings.toHexString(uint160(account), 20),
                " is missing role ",
                Strings.toHexString(uint256(role), 32)
            )));
        }
    }

    /**
     * @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 override 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.
     */
    function grantRole(bytes32 role, address account) public virtual override 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.
     */
    function revokeRole(bytes32 role, address account) public virtual override 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 granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

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

    function _grantRole(bytes32 role, address account) private {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    function _revokeRole(bytes32 role, address account) private {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

File 2 of 12 : ERC20.sol
// SPDX-License-Identifier: MIT

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 guidelines: functions revert instead
 * of 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 defaut 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");
        _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");
        _approve(_msgSender(), spender, currentAllowance - subtractedValue);

        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is 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");
        _balances[sender] = senderBalance - amount;
        _balances[recipient] += amount;

        emit Transfer(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:
     *
     * - `to` 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);
    }

    /**
     * @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");
        _balances[account] = accountBalance - amount;
        _totalSupply -= amount;

        emit Transfer(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 to 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 { }
}

File 3 of 12 : IERC20.sol
// SPDX-License-Identifier: MIT

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);
}

File 4 of 12 : ERC20Burnable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../../../utils/Context.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        uint256 currentAllowance = allowance(account, _msgSender());
        require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance");
        _approve(account, _msgSender(), currentAllowance - amount);
        _burn(account, amount);
    }
}

File 5 of 12 : IERC20Metadata.sol
// SPDX-License-Identifier: MIT

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);
}

File 6 of 12 : Context.sol
// SPDX-License-Identifier: MIT

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) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

File 7 of 12 : Strings.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant alphabet = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = alphabet[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

}

File 8 of 12 : ERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

File 9 of 12 : IERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 10 of 12 : PlatformData.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.0;

import {IAccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";
import {Master} from "../Master/Master.sol";

contract PlatformData is Master {
    // State variables
    Platform[] internal platforms;
    Oracle[] internal oracles;
    PriceFeed[] internal usdPriceFeeds;
    Custodian[] internal custodians;
    mapping(string => uint256[]) internal symbolToUsdPriceFeeds;

    // Events
    event NewPlatform(uint256 id, string name, string website);
    event NewOracle(uint256 id, string name, string website);
    event NewCustodian(uint256 id, string name, string website);
    event NewPriceFeed(
        string symbol,
        uint256 usdPriceFeedsId,
        uint256 oracleId,
        uint256 chainId,
        uint8 decimals,
        address proxyAddress
    );

    /**
     * @dev Add New Platform
     */
    function addNewPlatform(string calldata name, string calldata website)
        external
    {
        // Only admin allowed to call
        require(
            IAccessControl(address(cg)).hasRole(DEFAULT_ADMIN_ROLE, msg.sender),
            "ERR_AUTH_1"
        );

        // Store Data
        platforms.push(Platform(name, website));
        uint256 platformId = platforms.length - 1;
        emit NewPlatform(platformId, name, website);
    }

    /**
     * @dev Add New Oracle
     */
    function addNewOracle(string calldata name, string calldata website)
        external
    {
        // Only admin allowed to call
        require(
            IAccessControl(address(cg)).hasRole(DEFAULT_ADMIN_ROLE, msg.sender),
            "ERR_AUTH_1"
        );

        // Store Data
        oracles.push(Oracle(name, website));
        uint256 oracleId = oracles.length - 1;
        emit NewOracle(oracleId, name, website);
    }

    /**
     * @dev Add New Custodians
     */
    function addNewCustodian(string calldata name, string calldata website)
        external
    {
        // Only admin allowed to call
        require(
            IAccessControl(address(cg)).hasRole(DEFAULT_ADMIN_ROLE, msg.sender),
            "ERR_AUTH_1"
        );

        // Store Data
        custodians.push(Custodian(name, website));
        uint256 custodianId = custodians.length - 1;
        emit NewCustodian(custodianId, name, website);
    }

    /**
     * @dev Add New Price Feed
     */
    function addNewPriceFeed(
        string calldata symbol,
        uint256 oracleId,
        uint256 chainId,
        uint8 decimals,
        address proxyAddress
    ) external {
        // Only admin allowed to call
        require(
            IAccessControl(address(cg)).hasRole(DEFAULT_ADMIN_ROLE, msg.sender),
            "ERR_AUTH_1"
        );

        // Store Data
        usdPriceFeeds.push(
            PriceFeed(oracleId, chainId, decimals, proxyAddress)
        );
        uint256 usdPriceFeedsId = usdPriceFeeds.length - 1;
        symbolToUsdPriceFeeds[symbol].push(usdPriceFeedsId);
        emit NewPriceFeed(
            symbol,
            usdPriceFeedsId,
            oracleId,
            chainId,
            decimals,
            proxyAddress
        );
    }

    /**
     * @dev get price feed address by coin id/symbol
     * @dev coin id reference to coingecko
     */
    function getOraclePriceFeedAddress(string calldata symbol)
        external
        view
        returns (address)
    {
        uint256[] memory priceFeeds = symbolToUsdPriceFeeds[symbol];
        if (priceFeeds.length <= 0) {
            return address(0);
        } else {
            uint256 priceFeedId = priceFeeds[priceFeeds.length - 1];
            PriceFeed memory selectedPriceFeed = usdPriceFeeds[priceFeedId];
            return selectedPriceFeed.proxyAddress;
        }
    }
}

File 11 of 12 : IConfig.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.0;

interface IConfig {
    /**
     * @dev return address of Infi Token
     */
    function infiTokenAddr() external returns (address);

    /**
     * @dev return address of contract based on Initial Contract Name
     */
    function getLatestAddress(bytes2 _contractName)
        external
        returns (address payable contractAddress);

    /**
     * @dev check whether caller is internal smart contract
     * @dev internal smart contracts are smart contracts that used on Infi Project
     */
    function isInternal(address _add) external returns (bool);

    /**
     * @dev get decimals of given currency code/number
     */
    function getCurrencyDecimal(uint8 _currencyType)
        external
        view
        returns (uint8);

    /**
     * @dev get name of given currency code/number
     */
    function getCurrencyName(uint8 _currencyType)
        external
        view
        returns (string memory);

    function maxDevaluation() external view returns (uint256);

    function monitoringPeriod() external view returns (uint256);

    function maxPayoutPeriod() external view returns (uint256);

    function validationPreviousPeriod() external view returns (uint256);
}

File 12 of 12 : Master.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.0;

import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {IConfig} from "./IConfig.sol";
import {IAccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";

contract Master {
    // Used publicly
    IConfig internal cg;
    ERC20Burnable internal infiToken;
    bytes32 internal constant DEFAULT_ADMIN_ROLE = 0x00;

    // Storage and Payload
    enum CoverType {
        SMART_PROTOCOL_FAILURE,
        STABLECOIN_DEVALUATION,
        CUSTODIAN_FAILURE,
        RUGPULL_LIQUIDITY_SCAM
    }
    enum CurrencyType {
        USDT,
        USDC,
        DAI,
        END_ENUM
    }
    enum InsuredSumRule {
        PARTIAL,
        FULL
    }
    enum ListingType {
        REQUEST,
        OFFER
    }

    enum ClaimState {
        MONITORING,
        INVALID,
        VALID,
        INVALID_AFTER_EXPIRED,
        VALID_AFTER_EXPIRED
    }

    mapping(CurrencyType => uint8) internal currencyDecimalsOnFeed; // insuredSumCurrencyDecimalOnCL
    mapping(CurrencyType => uint256) internal currencyPriceOnFeed; // insuredSumCurrencyPriceOnCL
    mapping(string => uint8) internal coinIdToDecimals;

    // For passing parameter and store state variables
    struct CoverRequest {
        uint256 coverQty; // coverQty decimals depends on coinIdToDecimals mapping
        uint8 coverMonths; // represent month value 1-12
        uint256 insuredSum;
        uint256 insuredSumTarget; // if full funding : insuredSum - 2$
        CurrencyType insuredSumCurrency;
        uint256 premiumSum;
        CurrencyType premiumCurrency;
        uint256 expiredAt; // now + 14 days
        string coinId; // CoinGecko
        CoverLimit coverLimit;
        InsuredSumRule insuredSumRule;
        address holder; // may validate or not validate if same as msg.sender
    }

    // For passing parameter and store state variables
    struct CoverOffer {
        uint8 minCoverMonths; // represent month value 1-12 (expiredAt + 1 month - now >= minCoverMonths)
        uint256 insuredSum;
        CurrencyType insuredSumCurrency;
        uint256 premiumCostPerMonth; // $0.02 per $1 insured per Month (2000) a.k.a Premium Cost Per month per asset
        CurrencyType premiumCurrency;
        // IMPORTANT: max date for buying cover = expiredAt + 1 month
        uint256 expiredAt; // despositEndDate - 14 days beforeDepositEndDate
        string coinId; // CoinGecko
        CoverLimit coverLimit;
        InsuredSumRule insuredSumRule;
        address funder; // may validate or not validate if same as msg.sender
    }

    // Storage struct
    // Relationship: CoverCoverOffer ||--< Cover
    // Relationship: CoverRequest ||--< Cover
    // Relationship: One cover can have only one offer
    // Relationship: One cover can have only one request
    struct InsuranceCover {
        // type computed from (offerId != 0) or (requestId != 0)

        // If BuyCover (take offer)
        uint256 offerId; // from BuyCover.offerId
        // If CoverFunding (take request)
        uint256 requestId; // from CoverFunding.requestId
        // uint[] provideIds;

        ListingType listingType;
        // will validate claimSender
        address holder; // from BuyCover.buyer or CoverRequest.buyer
        // will validate maximum claimSum
        uint256 insuredSum; // from BuyCover.insuredSum or sum(CoverFunding.fundingSum)
        // will validate maximum claimQuantity
        uint256 coverQty; // from BuyCover.coverQty or CoverRequest.coverQty
    }

    // Storage: "Booking" object when take request
    // Relationship: CoverRequest ||--< CoverFunding
    struct CoverFunding {
        uint256 requestId;
        address funder;
        // insurance data:
        uint256 fundingSum; // part or portion of total insuredSum
    }

    // Payload: object when take offer
    // Virtual struct/type for payload (type of payloadBuyCover)
    struct BuyCover {
        uint256 offerId;
        address buyer;
        // insurance data:
        uint8 coverMonths; // represent month value 1-12
        uint256 coverQty; // coverQty decimals depends on coinIdToDecimals mapping
        uint256 insuredSum; // need validation : coverQty * assetPricing.coinPrice
        CoinPricingInfo assetPricing;
        bytes premiumPermit;
    }

    // Payload: object when take request
    // Virtual struct/type for payload (type of payloadBuyCover)
    struct ProvideCover {
        uint256 requestId;
        address provider;
        // insurance data:
        uint256 fundingSum;
        CoinPricingInfo assetPricing;
        bytes assetPermit;
    }

    // For passing Coin and Listing Fee info, required for validation
    struct CoinPricingInfo {
        string coinId;
        string coinSymbol;
        uint256 coinPrice; // decimals 6
        uint256 lastUpdatedAt;
        uint8 sigV;
        bytes32 sigR;
        bytes32 sigS;
    }

    struct CoverLimit {
        CoverType coverType;
        uint256[] territoryIds; // Platform Id, Price Feed Id, Custodian Id , (Dex Pool Id not Yet implemented)
    }

    struct Platform {
        string name;
        string website;
    }

    struct Oracle {
        string name;
        string website;
    }

    struct PriceFeed {
        uint256 oracleId;
        uint256 chainId;
        uint8 decimals;
        address proxyAddress;
    }

    struct Custodian {
        string name;
        string website;
    }

    struct EIP2612Permit {
        address owner;
        uint256 value;
        address spender;
        uint256 deadline;
        uint8 sigV;
        bytes32 sigR;
        bytes32 sigS;
    }

    struct DAIPermit {
        address holder;
        address spender;
        uint256 nonce;
        uint256 expiry;
        bool allowed;
        uint8 sigV;
        bytes32 sigR;
        bytes32 sigS;
    }

    struct CreateCoverRequestData {
        CoverRequest request; //
        CoinPricingInfo assetPricing; //
        CoinPricingInfo feePricing; //
        uint80 roundId; // insured sum to usd for calculate fee price
        bytes premiumPermit; // for transfer DAI, USDT, USDC
    }

    struct CreateCoverOfferData {
        CoverOffer offer; //
        CoinPricingInfo assetPricing;
        uint8 depositPeriod;
        CoinPricingInfo feePricing; //
        uint80 roundId; // insured sum to usd for calculate fee price
        bytes fundingPermit; // for transfer DAI, USDT, USDC
    }

    // Structs
    struct Claim {
        uint80 roundId; // round id that represent start of dropping value
        uint256 claimTime;
        uint256 payout;
        ClaimState state;
    }

    struct CollectiveClaim {
        uint80 roundId; // round id that represent start of dropping value
        uint256 claimTime;
        uint256 payout;
        ClaimState state;
    }

    // Modifier
    modifier onlyInternal() {
        require(cg.isInternal(msg.sender), "ERR_AUTH_2");
        _;
    }

    /**
    @dev Check balance of member/sender, minimal have 5000 Infi token. Used in Create Offer, Take Offer and Take Request
    @param _from member/sender's address
    @param _tokenAmount amount of token that used for create listing (will be 0 for take offer and take request)
     */
    modifier minimumBalance(address _from, uint256 _tokenAmount) {
        uint256 tokenAfterTransfer = infiToken.balanceOf(_from);
        uint256 tokenBeforeTransfer = tokenAfterTransfer + _tokenAmount;
        uint256 infiTokenDecimal = 18;
        require(
            tokenBeforeTransfer >= (5000 * (10**infiTokenDecimal)),
            "ERR_AUTH_4"
        );
        _;
    }

    /**
     * @dev change config contract address
     * @param _configAddress is the new address
     */
    function changeConfigAddress(address _configAddress) external {
        // Only admin allowed to call this function
        if (address(cg) != address(0)) {
            require(
                IAccessControl(address(cg)).hasRole(
                    DEFAULT_ADMIN_ROLE,
                    msg.sender
                ),
                "ERR_AUTH_1"
            );
        }
        // Change config address
        cg = IConfig(_configAddress);
    }
}

Settings
{
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

Contract ABI

[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"string","name":"website","type":"string"}],"name":"NewCustodian","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"string","name":"website","type":"string"}],"name":"NewOracle","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"string","name":"website","type":"string"}],"name":"NewPlatform","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"symbol","type":"string"},{"indexed":false,"internalType":"uint256","name":"usdPriceFeedsId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"oracleId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"chainId","type":"uint256"},{"indexed":false,"internalType":"uint8","name":"decimals","type":"uint8"},{"indexed":false,"internalType":"address","name":"proxyAddress","type":"address"}],"name":"NewPriceFeed","type":"event"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"website","type":"string"}],"name":"addNewCustodian","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"website","type":"string"}],"name":"addNewOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"website","type":"string"}],"name":"addNewPlatform","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"symbol","type":"string"},{"internalType":"uint256","name":"oracleId","type":"uint256"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"uint8","name":"decimals","type":"uint8"},{"internalType":"address","name":"proxyAddress","type":"address"}],"name":"addNewPriceFeed","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_configAddress","type":"address"}],"name":"changeConfigAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"symbol","type":"string"}],"name":"getOraclePriceFeedAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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