Transaction Hash:
Block:
22793870 at Jun-27-2025 06:04:59 AM +UTC
Transaction Fee:
0.000043121717615931 ETH
$0.09
Gas Used:
65,721 Gas / 0.656133011 Gwei
Emitted Events:
| 354 |
TransparentUpgradeableProxy.0xf36866d965ee70c8632ff558f5cf8d41ee9ca1d0d0bc7700786e57be60747390( 0xf36866d965ee70c8632ff558f5cf8d41ee9ca1d0d0bc7700786e57be60747390, 000000000000000000000000000000000000000000000000000000000000016d, 5357454c4c2f4554480000000000000000000000000000000000000000000000, 00000000000000000000000000000000000000000000000000000000685e348b )
|
Account State Difference:
| Address | Before | After | State Difference | ||
|---|---|---|---|---|---|
| 0x6809b956...6a8c5B584 |
1.925784607536878935 Eth
Nonce: 81301
|
1.925741485819263004 Eth
Nonce: 81302
| 0.000043121717615931 | ||
|
0x7DbfeD56...32DF8cc6c
Miner
| (MEV Builder: 0x7dbf...c6c) | 1.101605420065807527 Eth | 1.101612626271918582 Eth | 0.000007206206111055 | |
| 0xd72a6BA4...d0911fC6C | (RedStone: Multi Feed Adapter) |
Execution Trace
TransparentUpgradeableProxy.b7a16251( )
EthereumMultiFeedAdapterWithoutRoundsV2.updateDataFeedsValuesPartial( )-
Null: 0x000...001.bc598f84( ) -
Null: 0x000...001.bc598f84( ) -
Null: 0x000...001.bc598f84( )
-
updateDataFeedsValuesPartial[MultiFeedAdapterWithoutRounds (ln:831)]
getOracleNumericValuesAndTimestampFromTxMsg[MultiFeedAdapterWithoutRounds (ln:832)]validateTimestamp[MultiFeedAdapterWithoutRounds (ln:834)]type[MultiFeedAdapterWithoutRounds (ln:836)]DataTimestampTooLarge[MultiFeedAdapterWithoutRounds (ln:837)]type[MultiFeedAdapterWithoutRounds (ln:839)]BlockTimestampTooLarge[MultiFeedAdapterWithoutRounds (ln:840)]_tryToUpdateDataFeed[MultiFeedAdapterWithoutRounds (ln:846)]getLastUpdateDetailsUnsafe[MultiFeedAdapterWithoutRounds (ln:851)]_getDataFeedsStorage[MultiFeedAdapterWithoutRounds (ln:888)]
_validateBlockTimestamp[MultiFeedAdapterWithoutRounds (ln:852)]UpdateSkipDueToBlockTimestamp[MultiFeedAdapterWithoutRounds (ln:853)]_validateDataTimestamp[MultiFeedAdapterWithoutRounds (ln:856)]UpdateSkipDueToDataTimestamp[MultiFeedAdapterWithoutRounds (ln:857)]_validateValueBeforeSave[MultiFeedAdapterWithoutRounds (ln:860)]UpdateSkipDueToInvalidValue[MultiFeedAdapterWithoutRounds (ln:861)]_saveNewUpdateDetails[MultiFeedAdapterWithoutRounds (ln:864)]_getDataFeedsStorage[MultiFeedAdapterWithoutRounds (ln:868)]type[MultiFeedAdapterWithoutRounds (ln:869)]DataFeedDetails[MultiFeedAdapterWithoutRounds (ln:871)]
_emitEventAfterValueUpdate[MultiFeedAdapterWithoutRounds (ln:865)]ValueUpdate[MultiFeedAdapterWithoutRounds (ln:926)]
File 1 of 2: TransparentUpgradeableProxy
File 2 of 2: EthereumMultiFeedAdapterWithoutRoundsV2
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822Proxiable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.3) (interfaces/IERC1967.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
*
* _Available since v4.9._
*/
interface IERC1967 {
/**
* @dev Emitted when the implementation is upgraded.
*/
event Upgraded(address indexed implementation);
/**
* @dev Emitted when the admin account has changed.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Emitted when the beacon is changed.
*/
event BeaconUpgraded(address indexed beacon);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/beacon/BeaconProxy.sol)
pragma solidity ^0.8.0;
import "./IBeacon.sol";
import "../Proxy.sol";
import "../ERC1967/ERC1967Upgrade.sol";
/**
* @dev This contract implements a proxy that gets the implementation address for each call from an {UpgradeableBeacon}.
*
* The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't
* conflict with the storage layout of the implementation behind the proxy.
*
* _Available since v3.4._
*/
contract BeaconProxy is Proxy, ERC1967Upgrade {
/**
* @dev Initializes the proxy with `beacon`.
*
* If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This
* will typically be an encoded function call, and allows initializing the storage of the proxy like a Solidity
* constructor.
*
* Requirements:
*
* - `beacon` must be a contract with the interface {IBeacon}.
*/
constructor(address beacon, bytes memory data) payable {
_upgradeBeaconToAndCall(beacon, data, false);
}
/**
* @dev Returns the current beacon address.
*/
function _beacon() internal view virtual returns (address) {
return _getBeacon();
}
/**
* @dev Returns the current implementation address of the associated beacon.
*/
function _implementation() internal view virtual override returns (address) {
return IBeacon(_getBeacon()).implementation();
}
/**
* @dev Changes the proxy to use a new beacon. Deprecated: see {_upgradeBeaconToAndCall}.
*
* If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon.
*
* Requirements:
*
* - `beacon` must be a contract.
* - The implementation returned by `beacon` must be a contract.
*/
function _setBeacon(address beacon, bytes memory data) internal virtual {
_upgradeBeaconToAndCall(beacon, data, false);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
pragma solidity ^0.8.0;
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeacon {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {BeaconProxy} will check that this address is a contract.
*/
function implementation() external view returns (address);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/UpgradeableBeacon.sol)
pragma solidity ^0.8.0;
import "./IBeacon.sol";
import "../../access/Ownable.sol";
import "../../utils/Address.sol";
/**
* @dev This contract is used in conjunction with one or more instances of {BeaconProxy} to determine their
* implementation contract, which is where they will delegate all function calls.
*
* An owner is able to change the implementation the beacon points to, thus upgrading the proxies that use this beacon.
*/
contract UpgradeableBeacon is IBeacon, Ownable {
address private _implementation;
/**
* @dev Emitted when the implementation returned by the beacon is changed.
*/
event Upgraded(address indexed implementation);
/**
* @dev Sets the address of the initial implementation, and the deployer account as the owner who can upgrade the
* beacon.
*/
constructor(address implementation_) {
_setImplementation(implementation_);
}
/**
* @dev Returns the current implementation address.
*/
function implementation() public view virtual override returns (address) {
return _implementation;
}
/**
* @dev Upgrades the beacon to a new implementation.
*
* Emits an {Upgraded} event.
*
* Requirements:
*
* - msg.sender must be the owner of the contract.
* - `newImplementation` must be a contract.
*/
function upgradeTo(address newImplementation) public virtual onlyOwner {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Sets the implementation contract address for this beacon
*
* Requirements:
*
* - `newImplementation` must be a contract.
*/
function _setImplementation(address newImplementation) private {
require(Address.isContract(newImplementation), "UpgradeableBeacon: implementation is not a contract");
_implementation = newImplementation;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/ERC1967/ERC1967Proxy.sol)
pragma solidity ^0.8.0;
import "../Proxy.sol";
import "./ERC1967Upgrade.sol";
/**
* @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
* implementation address that can be changed. This address is stored in storage in the location specified by
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
* implementation behind the proxy.
*/
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
/**
* @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
*
* If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
* function call, and allows initializing the storage of the proxy like a Solidity constructor.
*/
constructor(address _logic, bytes memory _data) payable {
_upgradeToAndCall(_logic, _data, false);
}
/**
* @dev Returns the current implementation address.
*/
function _implementation() internal view virtual override returns (address impl) {
return ERC1967Upgrade._getImplementation();
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.3) (proxy/ERC1967/ERC1967Upgrade.sol)
pragma solidity ^0.8.2;
import "../beacon/IBeacon.sol";
import "../../interfaces/IERC1967.sol";
import "../../interfaces/draft-IERC1822.sol";
import "../../utils/Address.sol";
import "../../utils/StorageSlot.sol";
/**
* @dev This abstract contract provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
*
* _Available since v4.1._
*
* @custom:oz-upgrades-unsafe-allow delegatecall
*/
abstract contract ERC1967Upgrade is IERC1967 {
// This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation address.
*/
function _getImplementation() internal view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 implementation slot.
*/
function _setImplementation(address newImplementation) private {
require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
}
/**
* @dev Perform implementation upgrade
*
* Emits an {Upgraded} event.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Perform implementation upgrade with additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCall(
address newImplementation,
bytes memory data,
bool forceCall
) internal {
_upgradeTo(newImplementation);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(newImplementation, data);
}
}
/**
* @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCallUUPS(
address newImplementation,
bytes memory data,
bool forceCall
) internal {
// Upgrades from old implementations will perform a rollback test. This test requires the new
// implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
// this special case will break upgrade paths from old UUPS implementation to new ones.
if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
_setImplementation(newImplementation);
} else {
try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
} catch {
revert("ERC1967Upgrade: new implementation is not UUPS");
}
_upgradeToAndCall(newImplementation, data, forceCall);
}
}
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Returns the current admin.
*/
function _getAdmin() internal view returns (address) {
return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 admin slot.
*/
function _setAdmin(address newAdmin) private {
require(newAdmin != address(0), "ERC1967: new admin is the zero address");
StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*/
function _changeAdmin(address newAdmin) internal {
emit AdminChanged(_getAdmin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
* This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
*/
bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
/**
* @dev Returns the current beacon.
*/
function _getBeacon() internal view returns (address) {
return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
}
/**
* @dev Stores a new beacon in the EIP1967 beacon slot.
*/
function _setBeacon(address newBeacon) private {
require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
require(
Address.isContract(IBeacon(newBeacon).implementation()),
"ERC1967: beacon implementation is not a contract"
);
StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
}
/**
* @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
* not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
*
* Emits a {BeaconUpgraded} event.
*/
function _upgradeBeaconToAndCall(
address newBeacon,
bytes memory data,
bool forceCall
) internal {
_setBeacon(newBeacon);
emit BeaconUpgraded(newBeacon);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)
pragma solidity ^0.8.0;
/**
* @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
* instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
* be specified by overriding the virtual {_implementation} function.
*
* Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
* different contract through the {_delegate} function.
*
* The success and return data of the delegated call will be returned back to the caller of the proxy.
*/
abstract contract Proxy {
/**
* @dev Delegates the current call to `implementation`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _delegate(address implementation) internal virtual {
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
/**
* @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
* and {_fallback} should delegate.
*/
function _implementation() internal view virtual returns (address);
/**
* @dev Delegates the current call to the address returned by `_implementation()`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _fallback() internal virtual {
_beforeFallback();
_delegate(_implementation());
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
* function in the contract matches the call data.
*/
fallback() external payable virtual {
_fallback();
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
* is empty.
*/
receive() external payable virtual {
_fallback();
}
/**
* @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
* call, or as part of the Solidity `fallback` or `receive` functions.
*
* If overridden should call `super._beforeFallback()`.
*/
function _beforeFallback() internal virtual {}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.3) (proxy/transparent/ProxyAdmin.sol)
pragma solidity ^0.8.0;
import "./TransparentUpgradeableProxy.sol";
import "../../access/Ownable.sol";
/**
* @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an
* explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.
*/
contract ProxyAdmin is Ownable {
/**
* @dev Returns the current implementation of `proxy`.
*
* Requirements:
*
* - This contract must be the admin of `proxy`.
*/
function getProxyImplementation(ITransparentUpgradeableProxy proxy) public view virtual returns (address) {
// We need to manually run the static call since the getter cannot be flagged as view
// bytes4(keccak256("implementation()")) == 0x5c60da1b
(bool success, bytes memory returndata) = address(proxy).staticcall(hex"5c60da1b");
require(success);
return abi.decode(returndata, (address));
}
/**
* @dev Returns the current admin of `proxy`.
*
* Requirements:
*
* - This contract must be the admin of `proxy`.
*/
function getProxyAdmin(ITransparentUpgradeableProxy proxy) public view virtual returns (address) {
// We need to manually run the static call since the getter cannot be flagged as view
// bytes4(keccak256("admin()")) == 0xf851a440
(bool success, bytes memory returndata) = address(proxy).staticcall(hex"f851a440");
require(success);
return abi.decode(returndata, (address));
}
/**
* @dev Changes the admin of `proxy` to `newAdmin`.
*
* Requirements:
*
* - This contract must be the current admin of `proxy`.
*/
function changeProxyAdmin(ITransparentUpgradeableProxy proxy, address newAdmin) public virtual onlyOwner {
proxy.changeAdmin(newAdmin);
}
/**
* @dev Upgrades `proxy` to `implementation`. See {TransparentUpgradeableProxy-upgradeTo}.
*
* Requirements:
*
* - This contract must be the admin of `proxy`.
*/
function upgrade(ITransparentUpgradeableProxy proxy, address implementation) public virtual onlyOwner {
proxy.upgradeTo(implementation);
}
/**
* @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation. See
* {TransparentUpgradeableProxy-upgradeToAndCall}.
*
* Requirements:
*
* - This contract must be the admin of `proxy`.
*/
function upgradeAndCall(
ITransparentUpgradeableProxy proxy,
address implementation,
bytes memory data
) public payable virtual onlyOwner {
proxy.upgradeToAndCall{value: msg.value}(implementation, data);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.3) (proxy/transparent/TransparentUpgradeableProxy.sol)
pragma solidity ^0.8.0;
import "../ERC1967/ERC1967Proxy.sol";
/**
* @dev Interface for {TransparentUpgradeableProxy}. In order to implement transparency, {TransparentUpgradeableProxy}
* does not implement this interface directly, and some of its functions are implemented by an internal dispatch
* mechanism. The compiler is unaware that these functions are implemented by {TransparentUpgradeableProxy} and will not
* include them in the ABI so this interface must be used to interact with it.
*/
interface ITransparentUpgradeableProxy is IERC1967 {
function admin() external view returns (address);
function implementation() external view returns (address);
function changeAdmin(address) external;
function upgradeTo(address) external;
function upgradeToAndCall(address, bytes memory) external payable;
}
/**
* @dev This contract implements a proxy that is upgradeable by an admin.
*
* To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
* clashing], which can potentially be used in an attack, this contract uses the
* https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
* things that go hand in hand:
*
* 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
* that call matches one of the admin functions exposed by the proxy itself.
* 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
* implementation. If the admin tries to call a function on the implementation it will fail with an error that says
* "admin cannot fallback to proxy target".
*
* These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
* the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
* to sudden errors when trying to call a function from the proxy implementation.
*
* Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
* you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
*
* NOTE: The real interface of this proxy is that defined in `ITransparentUpgradeableProxy`. This contract does not
* inherit from that interface, and instead the admin functions are implicitly implemented using a custom dispatch
* mechanism in `_fallback`. Consequently, the compiler will not produce an ABI for this contract. This is necessary to
* fully implement transparency without decoding reverts caused by selector clashes between the proxy and the
* implementation.
*
* WARNING: It is not recommended to extend this contract to add additional external functions. If you do so, the compiler
* will not check that there are no selector conflicts, due to the note above. A selector clash between any new function
* and the functions declared in {ITransparentUpgradeableProxy} will be resolved in favor of the new one. This could
* render the admin operations inaccessible, which could prevent upgradeability. Transparency may also be compromised.
*/
contract TransparentUpgradeableProxy is ERC1967Proxy {
/**
* @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
* optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}.
*/
constructor(
address _logic,
address admin_,
bytes memory _data
) payable ERC1967Proxy(_logic, _data) {
_changeAdmin(admin_);
}
/**
* @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
*
* CAUTION: This modifier is deprecated, as it could cause issues if the modified function has arguments, and the
* implementation provides a function with the same selector.
*/
modifier ifAdmin() {
if (msg.sender == _getAdmin()) {
_;
} else {
_fallback();
}
}
/**
* @dev If caller is the admin process the call internally, otherwise transparently fallback to the proxy behavior
*/
function _fallback() internal virtual override {
if (msg.sender == _getAdmin()) {
bytes memory ret;
bytes4 selector = msg.sig;
if (selector == ITransparentUpgradeableProxy.upgradeTo.selector) {
ret = _dispatchUpgradeTo();
} else if (selector == ITransparentUpgradeableProxy.upgradeToAndCall.selector) {
ret = _dispatchUpgradeToAndCall();
} else if (selector == ITransparentUpgradeableProxy.changeAdmin.selector) {
ret = _dispatchChangeAdmin();
} else if (selector == ITransparentUpgradeableProxy.admin.selector) {
ret = _dispatchAdmin();
} else if (selector == ITransparentUpgradeableProxy.implementation.selector) {
ret = _dispatchImplementation();
} else {
revert("TransparentUpgradeableProxy: admin cannot fallback to proxy target");
}
assembly {
return(add(ret, 0x20), mload(ret))
}
} else {
super._fallback();
}
}
/**
* @dev Returns the current admin.
*
* TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
* https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
* `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
*/
function _dispatchAdmin() private returns (bytes memory) {
_requireZeroValue();
address admin = _getAdmin();
return abi.encode(admin);
}
/**
* @dev Returns the current implementation.
*
* TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
* https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
* `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
*/
function _dispatchImplementation() private returns (bytes memory) {
_requireZeroValue();
address implementation = _implementation();
return abi.encode(implementation);
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*/
function _dispatchChangeAdmin() private returns (bytes memory) {
_requireZeroValue();
address newAdmin = abi.decode(msg.data[4:], (address));
_changeAdmin(newAdmin);
return "";
}
/**
* @dev Upgrade the implementation of the proxy.
*/
function _dispatchUpgradeTo() private returns (bytes memory) {
_requireZeroValue();
address newImplementation = abi.decode(msg.data[4:], (address));
_upgradeToAndCall(newImplementation, bytes(""), false);
return "";
}
/**
* @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
* by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
* proxied contract.
*/
function _dispatchUpgradeToAndCall() private returns (bytes memory) {
(address newImplementation, bytes memory data) = abi.decode(msg.data[4:], (address, bytes));
_upgradeToAndCall(newImplementation, data, true);
return "";
}
/**
* @dev Returns the current admin.
*/
function _admin() internal view virtual returns (address) {
return _getAdmin();
}
/**
* @dev To keep this contract fully transparent, all `ifAdmin` functions must be payable. This helper is here to
* emulate some proxy functions being non-payable while still allowing value to pass through.
*/
function _requireZeroValue() private {
require(msg.value == 0);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
}
File 2 of 2: EthereumMultiFeedAdapterWithoutRoundsV2
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
import "./RedstoneConstants.sol";
/**
* @title The base contract with the main logic of data extraction from calldata
* @author The Redstone Oracles team
* @dev This contract was created to reuse the same logic in the RedstoneConsumerBase
* and the ProxyConnector contracts
*/
contract CalldataExtractor is RedstoneConstants {
error DataPackageTimestampMustNotBeZero();
error DataPackageTimestampsMustBeEqual();
error RedstonePayloadMustHaveAtLeastOneDataPackage();
error TooLargeValueByteSize(uint256 valueByteSize);
function extractTimestampsAndAssertAllAreEqual() public pure returns (uint256 extractedTimestamp) {
uint256 calldataNegativeOffset = _extractByteSizeOfUnsignedMetadata();
uint256 dataPackagesCount;
(dataPackagesCount, calldataNegativeOffset) = _extractDataPackagesCountFromCalldata(calldataNegativeOffset);
if (dataPackagesCount == 0) {
revert RedstonePayloadMustHaveAtLeastOneDataPackage();
}
for (uint256 dataPackageIndex = 0; dataPackageIndex < dataPackagesCount; dataPackageIndex++) {
uint256 dataPackageByteSize = _getDataPackageByteSize(calldataNegativeOffset);
// Extracting timestamp for the current data package
uint48 dataPackageTimestamp; // uint48, because timestamp uses 6 bytes
uint256 timestampNegativeOffset = (calldataNegativeOffset + TIMESTAMP_NEGATIVE_OFFSET_IN_DATA_PACKAGE_WITH_STANDARD_SLOT_BS);
uint256 timestampOffset = msg.data.length - timestampNegativeOffset;
assembly {
dataPackageTimestamp := calldataload(timestampOffset)
}
if (dataPackageTimestamp == 0) {
revert DataPackageTimestampMustNotBeZero();
}
if (extractedTimestamp == 0) {
extractedTimestamp = dataPackageTimestamp;
} else if (dataPackageTimestamp != extractedTimestamp) {
revert DataPackageTimestampsMustBeEqual();
}
calldataNegativeOffset += dataPackageByteSize;
}
}
function _getDataPackageByteSize(uint256 calldataNegativeOffset) internal pure returns (uint256) {
(
uint256 dataPointsCount,
uint256 eachDataPointValueByteSize
) = _extractDataPointsDetailsForDataPackage(calldataNegativeOffset);
return
dataPointsCount *
(DATA_POINT_SYMBOL_BS + eachDataPointValueByteSize) +
DATA_PACKAGE_WITHOUT_DATA_POINTS_BS;
}
function _extractByteSizeOfUnsignedMetadata() internal pure returns (uint256) {
// Checking if the calldata ends with the RedStone marker
bool hasValidRedstoneMarker;
assembly {
let calldataLast32Bytes := calldataload(sub(calldatasize(), STANDARD_SLOT_BS))
hasValidRedstoneMarker := eq(
REDSTONE_MARKER_MASK,
and(calldataLast32Bytes, REDSTONE_MARKER_MASK)
)
}
if (!hasValidRedstoneMarker) {
revert CalldataMustHaveValidPayload();
}
// Using uint24, because unsigned metadata byte size number has 3 bytes
uint24 unsignedMetadataByteSize;
if (REDSTONE_MARKER_BS_PLUS_STANDARD_SLOT_BS > msg.data.length) {
revert CalldataOverOrUnderFlow();
}
assembly {
unsignedMetadataByteSize := calldataload(
sub(calldatasize(), REDSTONE_MARKER_BS_PLUS_STANDARD_SLOT_BS)
)
}
uint256 calldataNegativeOffset = unsignedMetadataByteSize
+ UNSIGNED_METADATA_BYTE_SIZE_BS
+ REDSTONE_MARKER_BS;
if (calldataNegativeOffset + DATA_PACKAGES_COUNT_BS > msg.data.length) {
revert IncorrectUnsignedMetadataSize();
}
return calldataNegativeOffset;
}
// We return uint16, because unsigned metadata byte size number has 2 bytes
function _extractDataPackagesCountFromCalldata(uint256 calldataNegativeOffset)
internal
pure
returns (uint16 dataPackagesCount, uint256 nextCalldataNegativeOffset)
{
uint256 calldataNegativeOffsetWithStandardSlot = calldataNegativeOffset + STANDARD_SLOT_BS;
if (calldataNegativeOffsetWithStandardSlot > msg.data.length) {
revert CalldataOverOrUnderFlow();
}
assembly {
dataPackagesCount := calldataload(
sub(calldatasize(), calldataNegativeOffsetWithStandardSlot)
)
}
return (dataPackagesCount, calldataNegativeOffset + DATA_PACKAGES_COUNT_BS);
}
function _extractDataPointValueAndDataFeedId(
uint256 dataPointNegativeOffset,
uint256 dataPointValueByteSize
) internal pure virtual returns (bytes32 dataPointDataFeedId, uint256 dataPointValue) {
uint256 dataPointCalldataOffset = msg.data.length - dataPointNegativeOffset;
assembly {
dataPointDataFeedId := calldataload(dataPointCalldataOffset)
dataPointValue := calldataload(add(dataPointCalldataOffset, DATA_POINT_SYMBOL_BS))
}
if (dataPointValueByteSize >= 33) {
revert TooLargeValueByteSize(dataPointValueByteSize);
}
unchecked {
dataPointValue = dataPointValue >> (32 - dataPointValueByteSize) * 8;
}
}
function _extractDataPointsDetailsForDataPackage(uint256 calldataNegativeOffsetForDataPackage)
internal
pure
returns (uint256 dataPointsCount, uint256 eachDataPointValueByteSize)
{
// Using uint24, because data points count byte size number has 3 bytes
uint24 dataPointsCount_;
// Using uint32, because data point value byte size has 4 bytes
uint32 eachDataPointValueByteSize_;
// Extract data points count
uint256 calldataOffset = msg.data.length - (calldataNegativeOffsetForDataPackage + SIG_BS + STANDARD_SLOT_BS);
assembly {
dataPointsCount_ := calldataload(calldataOffset)
}
// Extract each data point value size
calldataOffset = calldataOffset - DATA_POINTS_COUNT_BS;
assembly {
eachDataPointValueByteSize_ := calldataload(calldataOffset)
}
// Prepare returned values
dataPointsCount = dataPointsCount_;
eachDataPointValueByteSize = eachDataPointValueByteSize_;
}
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
/**
* @title The base contract with helpful constants
* @author The Redstone Oracles team
* @dev It mainly contains redstone-related values, which improve readability
* of other contracts (e.g. CalldataExtractor and RedstoneConsumerBase)
*/
contract RedstoneConstants {
// === Abbreviations ===
// BS - Bytes size
// PTR - Pointer (memory location)
// SIG - Signature
// Solidity and YUL constants
uint256 internal constant STANDARD_SLOT_BS = 32;
uint256 internal constant FREE_MEMORY_PTR = 0x40;
uint256 internal constant BYTES_ARR_LEN_VAR_BS = 32;
uint256 internal constant REVERT_MSG_OFFSET = 68; // Revert message structure described here: https://ethereum.stackexchange.com/a/66173/106364
uint256 internal constant STRING_ERR_MESSAGE_MASK = 0x08c379a000000000000000000000000000000000000000000000000000000000;
// RedStone protocol consts
uint256 internal constant SIG_BS = 65;
uint256 internal constant TIMESTAMP_BS = 6;
uint256 internal constant DATA_PACKAGES_COUNT_BS = 2;
uint256 internal constant DATA_POINTS_COUNT_BS = 3;
uint256 internal constant DATA_POINT_VALUE_BYTE_SIZE_BS = 4;
uint256 internal constant DATA_POINT_SYMBOL_BS = 32;
uint256 internal constant DEFAULT_DATA_POINT_VALUE_BS = 32;
uint256 internal constant UNSIGNED_METADATA_BYTE_SIZE_BS = 3;
uint256 internal constant REDSTONE_MARKER_BS = 9; // byte size of 0x000002ed57011e0000
uint256 internal constant REDSTONE_MARKER_MASK = 0x0000000000000000000000000000000000000000000000000002ed57011e0000;
// Derived values (based on consts)
uint256 internal constant TIMESTAMP_NEGATIVE_OFFSET_IN_DATA_PACKAGE_WITH_STANDARD_SLOT_BS = 104; // SIG_BS + DATA_POINTS_COUNT_BS + DATA_POINT_VALUE_BYTE_SIZE_BS + STANDARD_SLOT_BS
uint256 internal constant DATA_PACKAGE_WITHOUT_DATA_POINTS_BS = 78; // DATA_POINT_VALUE_BYTE_SIZE_BS + TIMESTAMP_BS + DATA_POINTS_COUNT_BS + SIG_BS
uint256 internal constant DATA_PACKAGE_WITHOUT_DATA_POINTS_AND_SIG_BS = 13; // DATA_POINT_VALUE_BYTE_SIZE_BS + TIMESTAMP_BS + DATA_POINTS_COUNT_BS
uint256 internal constant REDSTONE_MARKER_BS_PLUS_STANDARD_SLOT_BS = 41; // REDSTONE_MARKER_BS + STANDARD_SLOT_BS
// Error messages
error CalldataOverOrUnderFlow();
error IncorrectUnsignedMetadataSize();
error InsufficientNumberOfUniqueSigners(uint256 receivedSignersCount, uint256 requiredSignersCount);
error EachSignerMustProvideTheSameValue();
error EmptyCalldataPointersArr();
error InvalidCalldataPointer();
error CalldataMustHaveValidPayload();
error SignerNotAuthorised(address receivedSigner);
error DataTimestampCannotBeZero();
error TimestampsMustBeEqual();
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
import "./RedstoneConstants.sol";
import "./RedstoneDefaultsLib.sol";
import "./CalldataExtractor.sol";
import "../libs/BitmapLib.sol";
import "../libs/SignatureLib.sol";
/**
* @title The base contract with the main Redstone logic
* @author The Redstone Oracles team
* @dev Do not use this contract directly in consumer contracts, take a
* look at `RedstoneConsumerNumericBase` and `RedstoneConsumerBytesBase` instead
*/
abstract contract RedstoneConsumerBase is CalldataExtractor {
error GetDataServiceIdNotImplemented();
/* ========== VIRTUAL FUNCTIONS (MAY BE OVERRIDDEN IN CHILD CONTRACTS) ========== */
/**
* @dev This function must be implemented by the child consumer contract.
* It should return dataServiceId which DataServiceWrapper will use if not provided explicitly .
* If not overridden, value will always have to be provided explicitly in DataServiceWrapper.
* @return dataServiceId being consumed by contract
*/
function getDataServiceId() public view virtual returns (string memory) {
revert GetDataServiceIdNotImplemented();
}
/**
* @dev This function must be implemented by the child consumer contract.
* It should return a unique index for a given signer address if the signer
* is authorised, otherwise it should revert
* @param receivedSigner The address of a signer, recovered from ECDSA signature
* @return Unique index for a signer in the range [0..255]
*/
function getAuthorisedSignerIndex(address receivedSigner) public view virtual returns (uint8);
/**
* @dev This function may be overridden by the child consumer contract.
* It should validate the timestamp against the current time (block.timestamp)
* It should revert with a helpful message if the timestamp is not valid
* @param receivedTimestampMilliseconds Timestamp extracted from calldata
*/
function validateTimestamp(uint256 receivedTimestampMilliseconds) public view virtual {
RedstoneDefaultsLib.validateTimestamp(receivedTimestampMilliseconds);
}
/**
* @dev This function must be implemented by the child consumer contract.
* @return The minimum required value of unique authorised signers
*/
function getUniqueSignersThreshold() public view virtual returns (uint8);
/**
* @dev This function may be overridden by the child consumer contract.
* It should aggregate values from different signers to a single uint value.
* By default, it calculates the median value
* @param values An array of uint256 values from different signers
* @return Result of the aggregation in the form of a single number
*/
function aggregateValues(uint256[] memory values) public view virtual returns (uint256) {
return RedstoneDefaultsLib.aggregateValues(values);
}
/* ========== FUNCTIONS WITH IMPLEMENTATION (CAN NOT BE OVERRIDDEN) ========== */
/**
* @dev This is an internal helpful function for secure extraction oracle values
* from the tx calldata. Security is achieved by signatures verification, timestamp
* validation, and aggregating values from different authorised signers into a
* single numeric value. If any of the required conditions (e.g. packages with different
* timestamps or insufficient number of authorised signers) do not match, the function
* will revert.
*
* Note! You should not call this function in a consumer contract. You can use
* `getOracleNumericValuesFromTxMsg` or `getOracleNumericValueFromTxMsg` instead.
*
* @param dataFeedIds An array of unique data feed identifiers
* @return An array of the extracted and verified oracle values in the same order
* as they are requested in dataFeedIds array
* @return dataPackagesTimestamp timestamp equal for all data packages
*/
function _securelyExtractOracleValuesAndTimestampFromTxMsg(bytes32[] memory dataFeedIds)
internal
view
returns (uint256[] memory, uint256 dataPackagesTimestamp)
{
// Initializing helpful variables and allocating memory
uint256[] memory uniqueSignerCountForDataFeedIds = new uint256[](dataFeedIds.length);
uint256[] memory signersBitmapForDataFeedIds = new uint256[](dataFeedIds.length);
uint256[][] memory valuesForDataFeeds = new uint256[][](dataFeedIds.length);
for (uint256 i = 0; i < dataFeedIds.length;) {
// The line below is commented because newly allocated arrays are filled with zeros
// But we left it for better readability
// signersBitmapForDataFeedIds[i] = 0; // <- setting to an empty bitmap
valuesForDataFeeds[i] = new uint256[](getUniqueSignersThreshold());
unchecked {
i++;
}
}
// Extracting the number of data packages from calldata
uint256 calldataNegativeOffset = _extractByteSizeOfUnsignedMetadata();
uint256 dataPackagesCount;
(dataPackagesCount, calldataNegativeOffset) = _extractDataPackagesCountFromCalldata(calldataNegativeOffset);
// Saving current free memory pointer
uint256 freeMemPtr;
assembly {
freeMemPtr := mload(FREE_MEMORY_PTR)
}
// Data packages extraction in a loop
for (uint256 dataPackageIndex = 0; dataPackageIndex < dataPackagesCount;) {
// Extract data package details and update calldata offset
uint256 dataPackageTimestamp;
(calldataNegativeOffset, dataPackageTimestamp) = _extractDataPackage(
dataFeedIds,
uniqueSignerCountForDataFeedIds,
signersBitmapForDataFeedIds,
valuesForDataFeeds,
calldataNegativeOffset
);
if (dataPackageTimestamp == 0) {
revert DataTimestampCannotBeZero();
}
if (dataPackageTimestamp != dataPackagesTimestamp) {
if (dataPackagesTimestamp == 0) {
// Setting dataPackagesTimestamp first time
dataPackagesTimestamp = dataPackageTimestamp;
} else {
revert TimestampsMustBeEqual();
}
}
// Resetting the memory pointer to the initial "safe" value
// We add STANDARD_SLOT_BS (32 bytes) to account for potential allocation
// of the dataPackageIndex variable, which may or may not be stored in memory
assembly {
mstore(FREE_MEMORY_PTR, add(freeMemPtr, STANDARD_SLOT_BS))
}
unchecked {
dataPackageIndex++;
}
}
// Validating numbers of unique signers and calculating aggregated values for each dataFeedId
return (_getAggregatedValues(valuesForDataFeeds, uniqueSignerCountForDataFeedIds), dataPackagesTimestamp);
}
/**
* @dev This is a private helpful function, which extracts data for a data package based
* on the given negative calldata offset, verifies them, and in the case of successful
* verification updates the corresponding data package values in memory
*
* @param dataFeedIds an array of unique data feed identifiers
* @param uniqueSignerCountForDataFeedIds an array with the numbers of unique signers
* for each data feed
* @param signersBitmapForDataFeedIds an array of signer bitmaps for data feeds
* @param valuesForDataFeeds 2-dimensional array, valuesForDataFeeds[i][j] contains
* j-th value for the i-th data feed
* @param calldataNegativeOffset negative calldata offset for the given data package
*
* @return nextCalldataNegativeOffset negative calldata offset for the next data package
* @return dataPackageTimestamp data package timestamp
*/
function _extractDataPackage(
bytes32[] memory dataFeedIds,
uint256[] memory uniqueSignerCountForDataFeedIds,
uint256[] memory signersBitmapForDataFeedIds,
uint256[][] memory valuesForDataFeeds,
uint256 calldataNegativeOffset
) private view returns (uint256 nextCalldataNegativeOffset, uint256 dataPackageTimestamp) {
uint256 signerIndex;
(
uint256 dataPointsCount,
uint256 eachDataPointValueByteSize
) = _extractDataPointsDetailsForDataPackage(calldataNegativeOffset);
// We use scopes to resolve problem with too deep stack
{
address signerAddress;
bytes32 signedHash;
bytes memory signedMessage;
uint256 signedMessageBytesCount;
uint48 extractedTimestamp;
signedMessageBytesCount = dataPointsCount * (eachDataPointValueByteSize + DATA_POINT_SYMBOL_BS)
+ DATA_PACKAGE_WITHOUT_DATA_POINTS_AND_SIG_BS; //DATA_POINT_VALUE_BYTE_SIZE_BS + TIMESTAMP_BS + DATA_POINTS_COUNT_BS
uint256 timestampCalldataOffset = msg.data.length -
(calldataNegativeOffset + TIMESTAMP_NEGATIVE_OFFSET_IN_DATA_PACKAGE_WITH_STANDARD_SLOT_BS);
uint256 signedMessageCalldataOffset = msg.data.length -
(calldataNegativeOffset + SIG_BS + signedMessageBytesCount);
assembly {
// Extracting the signed message
signedMessage := extractBytesFromCalldata(
signedMessageCalldataOffset,
signedMessageBytesCount
)
// Hashing the signed message
signedHash := keccak256(add(signedMessage, BYTES_ARR_LEN_VAR_BS), signedMessageBytesCount)
// Extracting timestamp
extractedTimestamp := calldataload(timestampCalldataOffset)
function initByteArray(bytesCount) -> ptr {
ptr := mload(FREE_MEMORY_PTR)
mstore(ptr, bytesCount)
ptr := add(ptr, BYTES_ARR_LEN_VAR_BS)
mstore(FREE_MEMORY_PTR, add(ptr, bytesCount))
}
function extractBytesFromCalldata(offset, bytesCount) -> extractedBytes {
let extractedBytesStartPtr := initByteArray(bytesCount)
calldatacopy(
extractedBytesStartPtr,
offset,
bytesCount
)
extractedBytes := sub(extractedBytesStartPtr, BYTES_ARR_LEN_VAR_BS)
}
}
dataPackageTimestamp = extractedTimestamp;
// Verifying the off-chain signature against on-chain hashed data
signerAddress = SignatureLib.recoverSignerAddress(
signedHash,
calldataNegativeOffset + SIG_BS
);
signerIndex = getAuthorisedSignerIndex(signerAddress);
}
// Updating helpful arrays
{
calldataNegativeOffset = calldataNegativeOffset + DATA_PACKAGE_WITHOUT_DATA_POINTS_BS;
bytes32 dataPointDataFeedId;
uint256 dataPointValue;
for (uint256 dataPointIndex = 0; dataPointIndex < dataPointsCount;) {
calldataNegativeOffset = calldataNegativeOffset + eachDataPointValueByteSize + DATA_POINT_SYMBOL_BS;
// Extracting data feed id and value for the current data point
(dataPointDataFeedId, dataPointValue) = _extractDataPointValueAndDataFeedId(
calldataNegativeOffset,
eachDataPointValueByteSize
);
for (
uint256 dataFeedIdIndex = 0;
dataFeedIdIndex < dataFeedIds.length;
) {
if (dataPointDataFeedId == dataFeedIds[dataFeedIdIndex]) {
uint256 bitmapSignersForDataFeedId = signersBitmapForDataFeedIds[dataFeedIdIndex];
if (
!BitmapLib.getBitFromBitmap(bitmapSignersForDataFeedId, signerIndex) && /* current signer was not counted for current dataFeedId */
uniqueSignerCountForDataFeedIds[dataFeedIdIndex] < getUniqueSignersThreshold()
) {
// Add new value
valuesForDataFeeds[dataFeedIdIndex][uniqueSignerCountForDataFeedIds[dataFeedIdIndex]] = dataPointValue;
// Increase unique signer counter
uniqueSignerCountForDataFeedIds[dataFeedIdIndex]++;
// Update signers bitmap
signersBitmapForDataFeedIds[dataFeedIdIndex] = BitmapLib.setBitInBitmap(
bitmapSignersForDataFeedId,
signerIndex
);
}
// Breaking, as there couldn't be several indexes for the same feed ID
break;
}
unchecked {
dataFeedIdIndex++;
}
}
unchecked {
dataPointIndex++;
}
}
}
return (calldataNegativeOffset, dataPackageTimestamp);
}
/**
* @dev This is a private helpful function, which aggregates values from different
* authorised signers for the given arrays of values for each data feed
*
* @param valuesForDataFeeds 2-dimensional array, valuesForDataFeeds[i][j] contains
* j-th value for the i-th data feed
* @param uniqueSignerCountForDataFeedIds an array with the numbers of unique signers
* for each data feed
*
* @return An array of the aggregated values
*/
function _getAggregatedValues(
uint256[][] memory valuesForDataFeeds,
uint256[] memory uniqueSignerCountForDataFeedIds
) private view returns (uint256[] memory) {
uint256[] memory aggregatedValues = new uint256[](valuesForDataFeeds.length);
uint256 uniqueSignersThreshold = getUniqueSignersThreshold();
for (uint256 dataFeedIndex = 0; dataFeedIndex < valuesForDataFeeds.length; dataFeedIndex++) {
if (uniqueSignerCountForDataFeedIds[dataFeedIndex] < uniqueSignersThreshold) {
revert InsufficientNumberOfUniqueSigners(
uniqueSignerCountForDataFeedIds[dataFeedIndex],
uniqueSignersThreshold);
}
uint256 aggregatedValueForDataFeedId = aggregateValues(valuesForDataFeeds[dataFeedIndex]);
aggregatedValues[dataFeedIndex] = aggregatedValueForDataFeedId;
}
return aggregatedValues;
}
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
import "./RedstoneConsumerBase.sol";
/**
* @title The base contract for Redstone consumers' contracts that allows to
* securely calculate numeric redstone oracle values
* @author The Redstone Oracles team
* @dev This contract can extend other contracts to allow them
* securely fetch Redstone oracle data from transactions calldata
*/
abstract contract RedstoneConsumerNumericBase is RedstoneConsumerBase {
/**
* @dev This function can be used in a consumer contract to securely extract an
* oracle value for a given data feed id. Security is achieved by
* signatures verification, timestamp validation, and aggregating values
* from different authorised signers into a single numeric value. If any of the
* required conditions do not match, the function will revert.
* Note! This function expects that tx calldata contains redstone payload in the end
* Learn more about redstone payload here: https://github.com/redstone-finance/redstone-oracles-monorepo/tree/main/packages/evm-connector#readme
* @param dataFeedId bytes32 value that uniquely identifies the data feed
* @return Extracted and verified numeric oracle value for the given data feed id
*/
function getOracleNumericValueFromTxMsg(bytes32 dataFeedId)
internal
view
virtual
returns (uint256)
{
bytes32[] memory dataFeedIds = new bytes32[](1);
dataFeedIds[0] = dataFeedId;
return getOracleNumericValuesFromTxMsg(dataFeedIds)[0];
}
/**
* @dev This function can be used in a consumer contract to securely extract several
* numeric oracle values for a given array of data feed ids. Security is achieved by
* signatures verification, timestamp validation, and aggregating values
* from different authorised signers into a single numeric value. If any of the
* required conditions do not match, the function will revert.
* Note! This function expects that tx calldata contains redstone payload in the end
* Learn more about redstone payload here: https://github.com/redstone-finance/redstone-oracles-monorepo/tree/main/packages/evm-connector#readme
* @param dataFeedIds An array of unique data feed identifiers
* @return An array of the extracted and verified oracle values in the same order
* as they are requested in the dataFeedIds array
*/
function getOracleNumericValuesFromTxMsg(bytes32[] memory dataFeedIds)
internal
view
virtual
returns (uint256[] memory)
{
(uint256[] memory values, uint256 timestamp) = _securelyExtractOracleValuesAndTimestampFromTxMsg(dataFeedIds);
validateTimestamp(timestamp);
return values;
}
/**
* @dev This function can be used in a consumer contract to securely extract several
* numeric oracle values for a given array of data feed ids. Security is achieved by
* signatures verification and aggregating values from different authorised signers
* into a single numeric value. If any of the required conditions do not match,
* the function will revert.
* Note! This function returns the timestamp of the packages (it requires it to be
* the same for all), but does not validate this timestamp.
* Note! This function expects that tx calldata contains redstone payload in the end
* Learn more about redstone payload here: https://github.com/redstone-finance/redstone-oracles-monorepo/tree/main/packages/evm-connector#readme
* @param dataFeedIds An array of unique data feed identifiers
* @return An array of the extracted and verified oracle values in the same order
* as they are requested in the dataFeedIds array and data packages timestamp
*/
function getOracleNumericValuesAndTimestampFromTxMsg(bytes32[] memory dataFeedIds)
internal
view
virtual
returns (uint256[] memory, uint256)
{
return _securelyExtractOracleValuesAndTimestampFromTxMsg(dataFeedIds);
}
/**
* @dev This function works similarly to the `getOracleNumericValuesFromTxMsg` with the
* only difference that it allows to request oracle data for an array of data feeds
* that may contain duplicates
*
* @param dataFeedIdsWithDuplicates An array of data feed identifiers (duplicates are allowed)
* @return An array of the extracted and verified oracle values in the same order
* as they are requested in the dataFeedIdsWithDuplicates array
*/
function getOracleNumericValuesWithDuplicatesFromTxMsg(bytes32[] memory dataFeedIdsWithDuplicates) internal view returns (uint256[] memory) {
// Building an array without duplicates
bytes32[] memory dataFeedIdsWithoutDuplicates = new bytes32[](dataFeedIdsWithDuplicates.length);
bool alreadyIncluded;
uint256 uniqueDataFeedIdsCount = 0;
for (uint256 indexWithDup = 0; indexWithDup < dataFeedIdsWithDuplicates.length; indexWithDup++) {
// Checking if current element is already included in `dataFeedIdsWithoutDuplicates`
alreadyIncluded = false;
for (uint256 indexWithoutDup = 0; indexWithoutDup < uniqueDataFeedIdsCount; indexWithoutDup++) {
if (dataFeedIdsWithoutDuplicates[indexWithoutDup] == dataFeedIdsWithDuplicates[indexWithDup]) {
alreadyIncluded = true;
break;
}
}
// Adding if not included
if (!alreadyIncluded) {
dataFeedIdsWithoutDuplicates[uniqueDataFeedIdsCount] = dataFeedIdsWithDuplicates[indexWithDup];
uniqueDataFeedIdsCount++;
}
}
// Overriding dataFeedIdsWithoutDuplicates.length
// Equivalent to: dataFeedIdsWithoutDuplicates.length = uniqueDataFeedIdsCount;
assembly {
mstore(dataFeedIdsWithoutDuplicates, uniqueDataFeedIdsCount)
}
// Requesting oracle values (without duplicates)
(uint256[] memory valuesWithoutDuplicates, uint256 timestamp) = _securelyExtractOracleValuesAndTimestampFromTxMsg(dataFeedIdsWithoutDuplicates);
validateTimestamp(timestamp);
// Preparing result values array
uint256[] memory valuesWithDuplicates = new uint256[](dataFeedIdsWithDuplicates.length);
for (uint256 indexWithDup = 0; indexWithDup < dataFeedIdsWithDuplicates.length; indexWithDup++) {
for (uint256 indexWithoutDup = 0; indexWithoutDup < dataFeedIdsWithoutDuplicates.length; indexWithoutDup++) {
if (dataFeedIdsWithDuplicates[indexWithDup] == dataFeedIdsWithoutDuplicates[indexWithoutDup]) {
valuesWithDuplicates[indexWithDup] = valuesWithoutDuplicates[indexWithoutDup];
break;
}
}
}
return valuesWithDuplicates;
}
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
import "../libs/NumericArrayLib.sol";
/**
* @title Default implementations of virtual redstone consumer base functions
* @author The Redstone Oracles team
*/
library RedstoneDefaultsLib {
uint256 constant DEFAULT_MAX_DATA_TIMESTAMP_DELAY_SECONDS = 3 minutes;
uint256 constant DEFAULT_MAX_DATA_TIMESTAMP_AHEAD_SECONDS = 1 minutes;
error TimestampFromTooLongFuture(uint256 receivedTimestampSeconds, uint256 blockTimestamp);
error TimestampIsTooOld(uint256 receivedTimestampSeconds, uint256 blockTimestamp);
function validateTimestamp(uint256 receivedTimestampMilliseconds) internal view {
// Getting data timestamp from future seems quite unlikely
// But we've already spent too much time with different cases
// Where block.timestamp was less than dataPackage.timestamp.
// Some blockchains may case this problem as well.
// That's why we add MAX_BLOCK_TIMESTAMP_DELAY
// and allow data "from future" but with a small delay
uint256 receivedTimestampSeconds = receivedTimestampMilliseconds / 1000;
if (block.timestamp < receivedTimestampSeconds) {
if ((receivedTimestampSeconds - block.timestamp) > DEFAULT_MAX_DATA_TIMESTAMP_AHEAD_SECONDS) {
revert TimestampFromTooLongFuture(receivedTimestampSeconds, block.timestamp);
}
} else if ((block.timestamp - receivedTimestampSeconds) > DEFAULT_MAX_DATA_TIMESTAMP_DELAY_SECONDS) {
revert TimestampIsTooOld(receivedTimestampSeconds, block.timestamp);
}
}
function aggregateValues(uint256[] memory values) internal pure returns (uint256) {
return NumericArrayLib.pickMedian(values);
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;
library BitmapLib {
function setBitInBitmap(uint256 bitmap, uint256 bitIndex) internal pure returns (uint256) {
return bitmap | (1 << bitIndex);
}
function getBitFromBitmap(uint256 bitmap, uint256 bitIndex) internal pure returns (bool) {
uint256 bitAtIndex = bitmap & (1 << bitIndex);
return bitAtIndex > 0;
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;
library NumericArrayLib {
// This function sort array in memory using bubble sort algorithm,
// which performs even better than quick sort for small arrays
uint256 constant BYTES_ARR_LEN_VAR_BS = 32;
uint256 constant UINT256_VALUE_BS = 32;
error CanNotPickMedianOfEmptyArray();
// This function modifies the array
function pickMedian(uint256[] memory arr) internal pure returns (uint256) {
if (arr.length == 2) {
return (arr[0] + arr[1]) / 2;
}
if (arr.length == 0) {
revert CanNotPickMedianOfEmptyArray();
}
sort(arr);
uint256 middleIndex = arr.length / 2;
if (arr.length % 2 == 0) {
uint256 sum = arr[middleIndex - 1] + arr[middleIndex];
return sum / 2;
} else {
return arr[middleIndex];
}
}
function sort(uint256[] memory arr) internal pure {
assembly {
let arrLength := mload(arr)
let valuesPtr := add(arr, BYTES_ARR_LEN_VAR_BS)
let endPtr := add(valuesPtr, mul(arrLength, UINT256_VALUE_BS))
for {
let arrIPtr := valuesPtr
} lt(arrIPtr, endPtr) {
arrIPtr := add(arrIPtr, UINT256_VALUE_BS) // arrIPtr += 32
} {
for {
let arrJPtr := valuesPtr
} lt(arrJPtr, arrIPtr) {
arrJPtr := add(arrJPtr, UINT256_VALUE_BS) // arrJPtr += 32
} {
let arrI := mload(arrIPtr)
let arrJ := mload(arrJPtr)
if lt(arrI, arrJ) {
mstore(arrIPtr, arrJ)
mstore(arrJPtr, arrI)
}
}
}
}
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;
library SignatureLib {
uint256 constant ECDSA_SIG_R_BS = 32;
uint256 constant ECDSA_SIG_S_BS = 32;
error InvalidSignature(bytes32 signedHash);
function recoverSignerAddress(bytes32 signedHash, uint256 signatureCalldataNegativeOffset)
internal
pure
returns (address signerAddress)
{
bytes32 r;
bytes32 s;
uint8 v;
assembly {
let signatureCalldataStartPos := sub(calldatasize(), signatureCalldataNegativeOffset)
r := calldataload(signatureCalldataStartPos)
signatureCalldataStartPos := add(signatureCalldataStartPos, ECDSA_SIG_R_BS)
s := calldataload(signatureCalldataStartPos)
signatureCalldataStartPos := add(signatureCalldataStartPos, ECDSA_SIG_S_BS)
v := byte(0, calldataload(signatureCalldataStartPos)) // last byte of the signature memory array
}
signerAddress = ecrecover(signedHash, v, r, s);
if (signerAddress == address(0)) {
revert InvalidSignature(signedHash);
}
}
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
interface ILToken {
function underlying() external view returns (address);
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.17;
interface IPriceCalculator {
struct ReferenceData {
uint256 lastData;
uint256 lastUpdated;
}
function priceOf(address asset) external view returns (uint256);
function pricesOf(
address[] memory assets
) external view returns (uint256[] memory);
function priceOfETH() external view returns (uint256);
function getUnderlyingPrice(address gToken) external view returns (uint256);
function getUnderlyingPrices(
address[] memory gTokens
) external view returns (uint256[] memory);
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
import {MultiFeedAdapterWithoutRounds} from "../without-rounds/MultiFeedAdapterWithoutRounds.sol";
abstract contract MultiFeedAdapterWithoutRoundsPrimaryProd is MultiFeedAdapterWithoutRounds {
function getUniqueSignersThreshold() public view virtual override returns (uint8) {
return 3;
}
function getAuthorisedSignerIndex(
address signerAddress
) public view virtual override returns (uint8) {
if (signerAddress == 0x8BB8F32Df04c8b654987DAaeD53D6B6091e3B774) { return 0; }
else if (signerAddress == 0xdEB22f54738d54976C4c0fe5ce6d408E40d88499) { return 1; }
else if (signerAddress == 0x51Ce04Be4b3E32572C4Ec9135221d0691Ba7d202) { return 2; }
else if (signerAddress == 0xDD682daEC5A90dD295d14DA4b0bec9281017b5bE) { return 3; }
else if (signerAddress == 0x9c5AE89C4Af6aA32cE58588DBaF90d18a855B6de) { return 4; }
else {
revert SignerNotAuthorised(signerAddress);
}
}
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
interface IMultiFeedAdapter {
function updateDataFeedsValuesPartial(bytes32[] memory dataFeedsIds) external;
function getLastUpdateDetails(bytes32 dataFeedId) external view returns (uint256 lastDataTimestamp, uint256 lastBlockTimestamp, uint256 lastValue);
function getLastUpdateDetailsUnsafe(bytes32 dataFeedId) external view returns (uint256 lastDataTimestamp, uint256 lastBlockTimestamp, uint256 lastValue);
function getValuesForDataFeeds(bytes32[] memory requestedDataFeedIds) external view returns (uint256[] memory values);
function getValueForDataFeed(bytes32 dataFeedId) external view returns (uint256 dataFeedValue);
function getDataTimestampFromLatestUpdate(bytes32 dataFeedId) external view returns (uint256 lastDataTimestamp);
function getBlockTimestampFromLatestUpdate(bytes32 dataFeedId) external view returns (uint256 blockTimestamp);
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
import {RedstoneConsumerNumericBase, RedstoneDefaultsLib} from "@redstone-finance/evm-connector/contracts/core/RedstoneConsumerNumericBase.sol";
import {IMultiFeedAdapter} from "../interfaces/IMultiFeedAdapter.sol";
import {IPriceCalculator} from "../../custom-integrations/layerbank/IPriceCalculator.sol";
import {ILToken} from "../../custom-integrations/layerbank/ILToken.sol";
/**
* @title MultiFeedAdapterWithoutRounds
* @author The Redstone Oracles team
* @dev This abstract contract serves as an adapter for multiple data feeds, facilitating
* the updating and retrieval of oracle data values independently.
*
* Key details about the contract:
* - Values for data feeds can be updated using the `updateDataFeedsValuesPartial` function
* - Unlike the previous version (RedstoneAdapterBase), this adapter allows updating any set of data feeds,
* with each update being made independently.
* - Updates are highly independent. Each data feed update is attempted separately, ensuring maximum possible
* updates without reverting the entire transaction if some of them fail. Both successful value updates and
* update skips due to failed validation are represented in corresponding events.
* - Efficient storage usage: Related timestamps and values are packed into a single 32-byte slot when possible.
* If a value exceeds the slot capacity, it is stored in the next slot, with one bool prop (isValueBigger) indicating the storage method used.
* - All data packages in the Redstone payload must have the same timestamp. Invalid timestamps (too old or too new) will cause transaction reversion.
* - The contract includes a built-in IPriceCalculator interface used by LayerBank and other projects
*/
abstract contract MultiFeedAdapterWithoutRounds is RedstoneConsumerNumericBase, IMultiFeedAdapter, IPriceCalculator {
bytes32 internal constant DATA_FEEDS_STORAGE_LOCATION = 0x5e9fb4cb0eb3c2583734d3394f30bb14b241acb9b3a034f7e7ba1a62db4370f1; // keccak256("RedStone.MultiFeedAdapterWithoutRounds.dataFeeds");
bytes32 internal constant ETH_DATA_FEED_ID = bytes32("ETH");
uint256 internal constant MAX_DATA_STALENESS = 30 hours;
uint256 internal constant DEFAULT_DECIMAL_SCALER_LAYERBANK = 1e10;
error DataTimestampTooLarge(uint256 dataTimestamp);
error BlockTimestampTooLarge(uint256 blockTimestamp);
error InvalidLastUpdateDetails(bytes32 dataFeedId, uint256 lastDataTimestamp, uint256 lastBlockTimestamp, uint256 lastValue);
event ValueUpdate(uint256 value, bytes32 dataFeedId, uint256 updatedAt);
event UpdateSkipDueToBlockTimestamp(bytes32 dataFeedId);
event UpdateSkipDueToDataTimestamp(bytes32 dataFeedId);
event UpdateSkipDueToInvalidValue(bytes32 dataFeedId);
// This struct uses exactly one storage slot (32 bytes)
struct DataFeedDetails {
uint48 dataTimestamp;
uint48 blockTimestamp;
uint152 value;
bool isValueBigger;
}
struct DataFeedDetailsWithOptionalBigValue {
DataFeedDetails details;
uint256 biggerValue;
}
// This struct is used only for returning values
struct LastUpdateDetails {
uint256 dataTimestamp;
uint256 blockTimestamp;
uint256 value;
}
struct DataFeedsStorage {
mapping(bytes32 => DataFeedDetailsWithOptionalBigValue) _dataFeeds;
}
/// This function allows to update any set of data feeds
function updateDataFeedsValuesPartial(bytes32[] memory dataFeedsIds) public {
(uint256[] memory oracleValues, uint256 extractedDataTimestamp) = getOracleNumericValuesAndTimestampFromTxMsg(dataFeedsIds);
// Revert if data timestamp doesn't fit within the allowed block timestamp window
validateTimestamp(extractedDataTimestamp);
// Revert if data or block timestamp do not fit into 48 bits reserved in storage for timestamps
if (extractedDataTimestamp > type(uint48).max) {
revert DataTimestampTooLarge(extractedDataTimestamp);
}
if (block.timestamp > type(uint48).max) {
revert BlockTimestampTooLarge(block.timestamp);
}
// The logic below can fail only in the case when gas limit reached
for (uint256 i = 0; i < dataFeedsIds.length;) {
// Note, each update is independent. It means that we are trying to update everything we can.
// And skip the rest (emitting corresponding events)
_tryToUpdateDataFeed(dataFeedsIds[i], oracleValues[i], extractedDataTimestamp);
unchecked { i++; } // reduces gas costs
}
}
function _tryToUpdateDataFeed(bytes32 dataFeedId, uint256 value, uint256 dataTimestamp) internal virtual {
(uint256 lastDataTimestamp, uint256 lastBlockTimestamp, uint256 lastValue) = getLastUpdateDetailsUnsafe(dataFeedId);
if (!_validateBlockTimestamp(lastBlockTimestamp)) {
emit UpdateSkipDueToBlockTimestamp(dataFeedId);
return;
}
if (!_validateDataTimestamp(dataTimestamp, lastDataTimestamp)) {
emit UpdateSkipDueToDataTimestamp(dataFeedId);
return;
}
if (!_validateValueBeforeSave(dataFeedId, value, lastValue)) {
emit UpdateSkipDueToInvalidValue(dataFeedId);
return;
}
_saveNewUpdateDetails(dataFeedId, value, dataTimestamp);
_emitEventAfterValueUpdate(dataFeedId, value);
}
function _saveNewUpdateDetails(bytes32 dataFeedId, uint256 newValue, uint256 dataTimestamp) internal {
DataFeedDetailsWithOptionalBigValue storage dataFeed = _getDataFeedsStorage()._dataFeeds[dataFeedId];
bool isValueBigger = newValue > type(uint152).max;
// We can safely cast timestamps here, because we checked timestamp values in the `updateDataFeedsValuesPartial` function
dataFeed.details = DataFeedDetails({
dataTimestamp: uint48(dataTimestamp),
blockTimestamp: uint48(block.timestamp),
value: uint152(newValue), // we can store anything here is isValueBigger == true, but it's slightly cheaper to always store the same value
isValueBigger: isValueBigger
});
if (isValueBigger) {
dataFeed.biggerValue = newValue;
}
}
function getLastUpdateDetails(bytes32 dataFeedId) public view virtual returns (uint256 lastDataTimestamp, uint256 lastBlockTimestamp, uint256 lastValue) {
(lastDataTimestamp, lastBlockTimestamp, lastValue) = getLastUpdateDetailsUnsafe(dataFeedId);
if (!_validateLastUpdateDetailsOnRead(dataFeedId, lastDataTimestamp, lastBlockTimestamp, lastValue)) {
revert InvalidLastUpdateDetails(dataFeedId, lastDataTimestamp, lastBlockTimestamp, lastValue);
}
}
function getLastUpdateDetailsUnsafe(bytes32 dataFeedId) public view virtual returns (uint256 lastDataTimestamp, uint256 lastBlockTimestamp, uint256 lastValue) {
DataFeedDetailsWithOptionalBigValue storage dataFeed = _getDataFeedsStorage()._dataFeeds[dataFeedId];
lastDataTimestamp = dataFeed.details.dataTimestamp;
lastBlockTimestamp = dataFeed.details.blockTimestamp;
if (dataFeed.details.isValueBigger) {
lastValue = dataFeed.biggerValue;
} else {
lastValue = dataFeed.details.value;
}
}
function _getDataFeedsStorage() private pure returns (DataFeedsStorage storage $) {
assembly {
$.slot := DATA_FEEDS_STORAGE_LOCATION
}
}
/// This function can be used to implement time-based whitelisting (e.g. whitelisting for only X seconds after the latest update)
/// Important! This function should not revert, it should only return bool result of the validation
function _validateBlockTimestamp(uint256 lastBlockTimestamp) internal view virtual returns (bool) {
// In the default implementation we just check if the block number is higher
// To ensure max 1 update for a given data feed in a block
return block.timestamp > lastBlockTimestamp;
}
/// Important! This function should not revert, it should only return bool result of the validation
function _validateDataTimestamp(uint256 proposedDataTimestamp, uint256 lastDataTimestamp) internal view virtual returns (bool) {
return proposedDataTimestamp > lastDataTimestamp;
}
/// Important! This function should not revert, it should only return bool result of the validation
/// It can be overridden to handle more specific logic in future
function _validateValueBeforeSave(bytes32 /* dataFeedId */, uint256 proposedValue, uint256 /* lastValue */) internal view virtual returns (bool) {
return proposedValue > 0;
}
/// This function can be overridden (e.g. value validation and staleness check)
/// We've added dataFeedId for being able to implement custom validation per feed
function _validateLastUpdateDetailsOnRead(bytes32 /* dataFeedId */, uint256 /* lastDataTimestamp */, uint256 lastBlockTimestamp, uint256 lastValue) internal view virtual returns (bool) {
return lastValue > 0 && lastBlockTimestamp + MAX_DATA_STALENESS > block.timestamp;
}
/// Important! This function should not revert, it should only emit an event
/// It is a separate function, so that we can specify custom events for specific data feeds
function _emitEventAfterValueUpdate(bytes32 dataFeedId, uint256 newValue) internal virtual {
emit ValueUpdate(newValue, dataFeedId, block.timestamp);
}
////////////////////////////////////////////////////
/////////// Functions for relayers below ///////////
////////////////////////////////////////////////////
function getLastUpdateDetailsUnsafeForMany(bytes32[] memory dataFeedIds) external view returns (LastUpdateDetails[] memory detailsForFeeds) {
detailsForFeeds = new LastUpdateDetails[](dataFeedIds.length);
for (uint256 i = 0; i < dataFeedIds.length;) {
(detailsForFeeds[i].dataTimestamp, detailsForFeeds[i].blockTimestamp, detailsForFeeds[i].value) = getLastUpdateDetailsUnsafe(dataFeedIds[i]);
unchecked { i++; } // reduces gas costs
}
}
function getValuesForDataFeeds(bytes32[] memory requestedDataFeedIds) external view returns (uint256[] memory values) {
values = new uint256[](requestedDataFeedIds.length);
for (uint256 i = 0; i < requestedDataFeedIds.length;) {
values[i] = getValueForDataFeed(requestedDataFeedIds[i]);
unchecked { i++; } // reduces gas costs
}
}
function getValueForDataFeed(bytes32 dataFeedId) public view virtual returns (uint256 dataFeedValue) {
(,, dataFeedValue) = getLastUpdateDetails(dataFeedId);
}
function getDataTimestampFromLatestUpdate(bytes32 dataFeedId) external view virtual returns (uint256 lastDataTimestamp) {
(lastDataTimestamp, ,) = getLastUpdateDetails(dataFeedId);
}
function getBlockTimestampFromLatestUpdate(bytes32 dataFeedId) external view virtual returns (uint256 blockTimestamp) {
(, blockTimestamp, ) = getLastUpdateDetails(dataFeedId);
}
///////////////////////////////////////////////////////
//////////// LayerBank interface functions ////////////
///////////////////////////////////////////////////////
/// We can connect manager contract here or implement it directly here
/// By default, users will be able to use data feed identifiers (casted to addresses) in layerbank functions
function getDataFeedIdForAsset(address asset) public view virtual returns(bytes32) {
return bytes32(uint256(uint160(asset)));
}
function convertDecimals(bytes32 /* dataFeedId */, uint256 valueFromRedstonePayload) public view virtual returns (uint256) {
return valueFromRedstonePayload * DEFAULT_DECIMAL_SCALER_LAYERBANK;
}
function getUnderlyingAsset(address gToken) public view virtual returns(address) {
return ILToken(gToken).underlying();
}
function priceOf(address asset) public view virtual returns (uint256) {
bytes32 dataFeedId = getDataFeedIdForAsset(asset);
uint256 latestValue = getValueForDataFeed(dataFeedId);
return convertDecimals(dataFeedId, latestValue);
}
function priceOfETH() public view virtual returns (uint256) {
return convertDecimals(ETH_DATA_FEED_ID, getValueForDataFeed(ETH_DATA_FEED_ID));
}
function pricesOf(
address[] memory assets
) external view returns (uint256[] memory values) {
values = new uint256[](assets.length);
for (uint256 i = 0; i < assets.length;) {
values[i] = priceOf(assets[i]);
unchecked { i++; } // reduces gas costs
}
}
function getUnderlyingPrice(address gToken) public view returns (uint256) {
return priceOf(getUnderlyingAsset(gToken));
}
function getUnderlyingPrices(
address[] memory gTokens
) public view returns (uint256[] memory values) {
values = new uint256[](gTokens.length);
for (uint256 i = 0; i < gTokens.length;) {
values[i] = getUnderlyingPrice(gTokens[i]);
unchecked { i++; } // reduces gas costs
}
}
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.4;
library OldGelatoAddress {
address constant public ADDR = 0xc4D1AE5E796E6d7561cdc8335F85e6B57a36e097;
}
library GelatoAddress {
address constant public ADDR = 0xCD6BfDA4D95d5C0f3f2882dC221D792392c99714;
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.17;
import {OldGelatoAddress, GelatoAddress} from "../__addresses/Addresses.sol";
import {MultiFeedAdapterWithoutRoundsPrimaryProd} from "@redstone-finance/on-chain-relayer/contracts/price-feeds/data-services/MultiFeedAdapterWithoutRoundsPrimaryProd.sol";
contract EthereumMultiFeedAdapterWithoutRoundsV2 is
MultiFeedAdapterWithoutRoundsPrimaryProd
{
address internal constant MAIN_UPDATER_ADDRESS =
0x6809b95622B2dcC53d2F3Fb2301B36F6a8c5B584;
address internal constant FALLBACK_UPDATER_ADDRESS =
0x12c88f64e5E35393D38255aB42858010Cbd72eBd;
address internal constant MANUAL_UPDATER_ADDRESS =
0x9E7CaAb1924A7e5Bb4305dFd843194B5E19480D3;
function _validateBlockTimestamp(
uint256 lastBlockTimestamp
) internal view virtual override returns (bool) {
if (
msg.sender == MAIN_UPDATER_ADDRESS ||
msg.sender == FALLBACK_UPDATER_ADDRESS ||
msg.sender == MANUAL_UPDATER_ADDRESS ||
msg.sender == GelatoAddress.ADDR ||
msg.sender == OldGelatoAddress.ADDR
) {
// For whitelisted addresses we only require a newer block
return block.timestamp > lastBlockTimestamp;
} else {
// For non-whitelisted addresses we require some time to pass after the latest update
return block.timestamp > lastBlockTimestamp + 40 seconds;
}
}
}