Transaction Hash:
Block:
21759261 at Feb-02-2025 01:55:47 PM +UTC
Transaction Fee:
0.000297998859560791 ETH
$0.60
Gas Used:
99,061 Gas / 3.008235931 Gwei
Emitted Events:
| 465 |
WETH9.Deposit( dst=EnsoShortcuts, wad=300000000000000000 )
|
| 466 |
WETH9.Transfer( src=EnsoShortcuts, dst=[Sender] 0xb47c0381a112c27eef5bc1b45fc4727149c07ccf, wad=300000000000000000 )
|
Account State Difference:
| Address | Before | After | State Difference | ||
|---|---|---|---|---|---|
|
0x95222290...5CC4BAfe5
Miner
| (beaverbuild) | 18.214599807470277536 Eth | 18.214600223526477536 Eth | 0.0000004160562 | |
| 0xb47c0381...149C07CcF |
0.3103 Eth
Nonce: 0
|
0.010002001140439209 Eth
Nonce: 1
| 0.300297998859560791 | ||
| 0xC02aaA39...83C756Cc2 | 2,959,444.667973697562597337 Eth | 2,959,444.967973697562597337 Eth | 0.3 |
Execution Trace
ETH 0.3
EnsoShortcutRouter.routeSingle( ) => ( returnData=[AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABCnQaRieAAA=, AAAAAAAAAAAAAAAAtHwDgaESwn7vW8G0X8RycUnAfM8=, AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAE=] )
ETH 0.3
EnsoShortcuts.executeShortcut( ) => ( [AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABCnQaRieAAA=, AAAAAAAAAAAAAAAAtHwDgaESwn7vW8G0X8RycUnAfM8=, AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAE=] )- ETH 0.3
WETH9.CALL( )
-
WETH9.transfer( dst=0xb47c0381a112c27EEF5bc1B45fC4727149C07CcF, wad=300000000000000000 ) => ( True )
-
EnsoShortcutsHelpers.isEqualOrGreaterThan( a=300000000000000000, b=299250000000000000 ) => ( True ) -
EnsoShortcutsHelpers.check( condition=True )
- ETH 0.3
routeSingle[EnsoShortcutRouter (ln:24)]
WrongValue[EnsoShortcutRouter (ln:31)]WrongValue[EnsoShortcutRouter (ln:33)]safeTransferFrom[EnsoShortcutRouter (ln:34)]executeShortcut[EnsoShortcutRouter (ln:36)]
File 1 of 4: EnsoShortcutRouter
File 2 of 4: WETH9
File 3 of 4: EnsoShortcuts
File 4 of 4: EnsoShortcutsHelpers
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.0;
import { EnsoShortcuts } from "./EnsoShortcuts.sol";
import { SafeERC20, IERC20 } from "openzeppelin/token/ERC20/utils/SafeERC20.sol";
struct Token {
IERC20 token;
uint256 amount;
}
contract EnsoShortcutRouter {
using SafeERC20 for IERC20;
IERC20 private constant _ETH = IERC20(0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE);
EnsoShortcuts public immutable enso;
error WrongValue(uint256 value, uint256 amount);
error AmountTooLow(address token);
error Duplicate(address token);
constructor(address owner_) {
enso = new EnsoShortcuts(owner_, address(this));
}
// @notice Route a single token via an Enso Shortcut
// @param tokenIn The address of the token to send
// @param amountIn The amount of the token to send
// @param commands An array of bytes32 values that encode calls
// @param state An array of bytes that are used to generate call data for each command
function routeSingle(
IERC20 tokenIn,
uint256 amountIn,
bytes32[] calldata commands,
bytes[] calldata state
) public payable returns (bytes[] memory returnData) {
if (tokenIn == _ETH) {
if (msg.value != amountIn) revert WrongValue(msg.value, amountIn);
} else {
if (msg.value != 0) revert WrongValue(msg.value, 0);
tokenIn.safeTransferFrom(msg.sender, address(enso), amountIn);
}
returnData = enso.executeShortcut{value: msg.value}(commands, state);
}
// @notice Route multiple tokens via an Enso Shortcut
// @param tokensIn The addresses and amounts of the tokens to send
// @param commands An array of bytes32 values that encode calls
// @param state An array of bytes that are used to generate call data for each command
function routeMulti(
Token[] calldata tokensIn,
bytes32[] calldata commands,
bytes[] calldata state
) public payable returns (bytes[] memory returnData) {
bool ethFlag;
IERC20 tokenIn;
uint256 amountIn;
for (uint256 i; i < tokensIn.length; ++i) {
tokenIn = tokensIn[i].token;
amountIn = tokensIn[i].amount;
if (tokenIn == _ETH) {
if (ethFlag) revert Duplicate(address(_ETH));
ethFlag = true;
if (msg.value != amountIn) revert WrongValue(msg.value, amountIn);
} else {
tokenIn.safeTransferFrom(msg.sender, address(enso), amountIn);
}
}
if (!ethFlag && msg.value != 0) revert WrongValue(msg.value, 0);
returnData = enso.executeShortcut{value: msg.value}(commands, state);
}
// @notice Route a single token via an Enso Shortcut and revert if there is insufficient token received
// @param tokenIn The address of the token to send
// @param tokenOut The address of the token to receive
// @param amountIn The amount of the token to send
// @param minAmountOut The minimum amount of the token to receive
// @param receiver The address of the wallet that will receive the tokens
// @param commands An array of bytes32 values that encode calls
// @param state An array of bytes that are used to generate call data for each command
function safeRouteSingle(
IERC20 tokenIn,
IERC20 tokenOut,
uint256 amountIn,
uint256 minAmountOut,
address receiver,
bytes32[] calldata commands,
bytes[] calldata state
) external payable returns (bytes[] memory returnData) {
uint256 balance = tokenOut == _ETH ? receiver.balance : tokenOut.balanceOf(receiver);
returnData = routeSingle(tokenIn, amountIn, commands, state);
uint256 amountOut;
if (tokenOut == _ETH) {
amountOut = receiver.balance - balance;
} else {
amountOut = tokenOut.balanceOf(receiver) - balance;
}
if (amountOut < minAmountOut) revert AmountTooLow(address(tokenOut));
}
// @notice Route multiple tokens via an Enso Shortcut and revert if there is insufficient tokens received
// @param tokensIn The addresses and amounts of the tokens to send
// @param tokensOut The addresses and minimum amounts of the tokens to receive
// @param receiver The address of the wallet that will receive the tokens
// @param commands An array of bytes32 values that encode calls
// @param state An array of bytes that are used to generate call data for each command
function safeRouteMulti(
Token[] calldata tokensIn,
Token[] calldata tokensOut,
address receiver,
bytes32[] calldata commands,
bytes[] calldata state
) external payable returns (bytes[] memory returnData) {
uint256 length = tokensOut.length;
uint256[] memory balances = new uint256[](length);
IERC20 tokenOut;
for (uint256 i; i < length; ++i) {
tokenOut = tokensOut[i].token;
balances[i] = tokenOut == _ETH ? receiver.balance : tokenOut.balanceOf(receiver);
}
returnData = routeMulti(tokensIn, commands, state);
uint256 amountOut;
for (uint256 i; i < length; ++i) {
tokenOut = tokensOut[i].token;
if (tokenOut == _ETH) {
amountOut = receiver.balance - balances[i];
} else {
amountOut = tokenOut.balanceOf(receiver) - balances[i];
}
if (amountOut < tokensOut[i].amount) revert AmountTooLow(address(tokenOut));
}
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.0;
import { VM } from "enso-weiroll/VM.sol";
import { MinimalWallet } from "shortcuts-contracts/wallet/MinimalWallet.sol";
import { AccessController } from "shortcuts-contracts/access/AccessController.sol";
contract EnsoShortcuts is VM, MinimalWallet, AccessController {
address public executor;
constructor(address owner_, address executor_) {
_setPermission(OWNER_ROLE, owner_, true);
executor = executor_;
}
// @notice Execute a shortcut
// @param commands An array of bytes32 values that encode calls
// @param state An array of bytes that are used to generate call data for each command
function executeShortcut(
bytes32[] calldata commands,
bytes[] calldata state
) external payable returns (bytes[] memory) {
// we could use the AccessController here to check if the msg.sender is the executor address
// but as it's a hot path we do a less gas intensive check
if (msg.sender != executor) revert NotPermitted();
return _execute(commands, state);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Compatible with tokens that require the approval to be set to
* 0 before setting it to a non-zero value.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
* Revert on invalid signature.
*/
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*
* This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
// and not revert is the subcall reverts.
(bool success, bytes memory returndata) = address(token).call(data);
return
success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
import "./CommandBuilder.sol";
abstract contract VM {
using CommandBuilder for bytes[];
uint256 constant FLAG_CT_DELEGATECALL = 0x00; // Delegate call not currently supported
uint256 constant FLAG_CT_CALL = 0x01;
uint256 constant FLAG_CT_STATICCALL = 0x02;
uint256 constant FLAG_CT_VALUECALL = 0x03;
uint256 constant FLAG_CT_MASK = 0x03;
uint256 constant FLAG_DATA = 0x20;
uint256 constant FLAG_EXTENDED_COMMAND = 0x40;
uint256 constant FLAG_TUPLE_RETURN = 0x80;
uint256 constant SHORT_COMMAND_FILL =
0x000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;
error ExecutionFailed(
uint256 command_index,
address target,
string message
);
function _execute(bytes32[] calldata commands, bytes[] memory state)
internal
returns (bytes[] memory)
{
bytes32 command;
uint256 flags;
bytes32 indices;
bool success;
bytes memory outData;
uint256 commandsLength = commands.length;
uint256 indicesLength;
for (uint256 i; i < commandsLength; i = _uncheckedIncrement(i)) {
command = commands[i];
flags = uint256(uint8(bytes1(command << 32)));
if (flags & FLAG_EXTENDED_COMMAND != 0) {
i = _uncheckedIncrement(i);
indices = commands[i];
indicesLength = 32;
} else {
indices = bytes32(uint256(command << 40) | SHORT_COMMAND_FILL);
indicesLength = 6;
}
if (flags & FLAG_CT_MASK == FLAG_CT_CALL) {
(success, outData) = address(uint160(uint256(command))).call( // target
// inputs
flags & FLAG_DATA == 0
? state.buildInputs(
bytes4(command), // selector
indices,
indicesLength
)
: state[
uint8(bytes1(indices)) &
CommandBuilder.IDX_VALUE_MASK
]
);
} else if (flags & FLAG_CT_MASK == FLAG_CT_STATICCALL) {
(success, outData) = address(uint160(uint256(command))) // target
.staticcall(
// inputs
flags & FLAG_DATA == 0
? state.buildInputs(
bytes4(command), // selector
indices,
indicesLength
)
: state[
uint8(bytes1(indices)) &
CommandBuilder.IDX_VALUE_MASK
]
);
} else if (flags & FLAG_CT_MASK == FLAG_CT_VALUECALL) {
bytes memory v = state[
uint8(bytes1(indices)) &
CommandBuilder.IDX_VALUE_MASK
];
require(v.length == 32, "Value must be 32 bytes");
uint256 callEth = uint256(bytes32(v));
(success, outData) = address(uint160(uint256(command))).call{ // target
value: callEth
}(
// inputs
flags & FLAG_DATA == 0
? state.buildInputs(
bytes4(command), // selector
indices << 8, // skip value input
indicesLength - 1 // max indices length reduced by value input
)
: state[
uint8(bytes1(indices << 8)) & // first byte after value input
CommandBuilder.IDX_VALUE_MASK
]
);
} else {
revert("Invalid calltype");
}
if (!success) {
string memory message = "Unknown";
if (outData.length > 68) {
// This might be an error message, parse the outData
// Estimate the bytes length of the possible error message
uint256 estimatedLength = _estimateBytesLength(outData, 68);
// Remove selector. First 32 bytes should be a pointer that indicates the start of data in memory
assembly {
outData := add(outData, 4)
}
uint256 pointer = uint256(bytes32(outData));
if (pointer == 32) {
// Remove pointer. If it is a string, the next 32 bytes will hold the size
assembly {
outData := add(outData, 32)
}
uint256 size = uint256(bytes32(outData));
// If the size variable is the same as the estimated bytes length, we can be fairly certain
// this is a dynamic string, so convert the bytes to a string and emit the message. While an
// error function with 3 static parameters is capable of producing a similar output, there is
// low risk of a contract unintentionally emitting a message.
if (size == estimatedLength) {
// Remove size. The remaining data should be the string content
assembly {
outData := add(outData, 32)
}
message = string(outData);
}
}
}
revert ExecutionFailed({
command_index: flags & FLAG_EXTENDED_COMMAND == 0
? i
: i - 1,
target: address(uint160(uint256(command))),
message: message
});
}
if (flags & FLAG_TUPLE_RETURN != 0) {
state.writeTuple(bytes1(command << 88), outData);
} else {
state = state.writeOutputs(bytes1(command << 88), outData);
}
}
return state;
}
function _estimateBytesLength(bytes memory data, uint256 pos) internal pure returns (uint256 estimate) {
uint256 length = data.length;
estimate = length - pos; // Assume length equals alloted space
for (uint256 i = pos; i < length; ) {
if (data[i] == 0) {
// Zero bytes found, adjust estimated length
estimate = i - pos;
break;
}
unchecked {
++i;
}
}
}
function _uncheckedIncrement(uint256 i) private pure returns (uint256) {
unchecked {
++i;
}
return i;
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol";
import "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol";
import "../access/ACL.sol";
import "../access/Roles.sol";
contract MinimalWallet is ACL, Roles, ERC721Holder, ERC1155Holder {
using SafeERC20 for IERC20;
enum Protocol {
ETH,
ERC20,
ERC721,
ERC1155
}
struct TransferNote {
Protocol protocol;
address token;
uint256[] ids;
uint256[] amounts;
}
struct ApprovalNote {
Protocol protocol;
address token;
address[] operators;
}
error WithdrawFailed();
error InvalidArrayLength();
////////////////////////////////////////////////////
// External functions //////////////////////////////
////////////////////////////////////////////////////
// @notice Withdraw an array of assets
// @dev Works for ETH, ERC20s, ERC721s, and ERC1155s
// @param notes A tuple that contains the protocol id, token address, array of ids and amounts
function withdraw(TransferNote[] calldata notes) external isPermitted(OWNER_ROLE) {
TransferNote memory note;
Protocol protocol;
uint256[] memory ids;
uint256[] memory amounts;
uint256 length = notes.length;
for (uint256 i; i < length; ) {
note = notes[i];
protocol = note.protocol;
if (protocol == Protocol.ETH) {
amounts = note.amounts;
if (amounts.length != 1) revert InvalidArrayLength();
_withdrawETH(amounts[0]);
} else if (protocol == Protocol.ERC20) {
amounts = note.amounts;
if (amounts.length != 1) revert InvalidArrayLength();
_withdrawERC20(IERC20(note.token), amounts[0]);
} else if (protocol == Protocol.ERC721) {
ids = note.ids;
_withdrawERC721s(IERC721(note.token), ids);
} else if (protocol == Protocol.ERC1155) {
ids = note.ids;
amounts = note.amounts;
_withdrawERC1155s(IERC1155(note.token), ids, amounts);
}
unchecked {
++i;
}
}
}
// @notice Withdraw ETH from this contract to the msg.sender
// @param amount The amount of ETH to be withdrawn
function withdrawETH(uint256 amount) external isPermitted(OWNER_ROLE) {
_withdrawETH(amount);
}
// @notice Withdraw ERC20s
// @param erc20s An array of erc20 addresses
// @param amounts An array of amounts for each erc20
function withdrawERC20s(
IERC20[] calldata erc20s,
uint256[] calldata amounts
) external isPermitted(OWNER_ROLE) {
uint256 length = erc20s.length;
if (amounts.length != length) revert InvalidArrayLength();
for (uint256 i; i < length; ) {
_withdrawERC20(erc20s[i], amounts[i]);
unchecked {
++i;
}
}
}
// @notice Withdraw multiple ERC721 ids for a single ERC721 contract
// @param erc721 The address of the ERC721 contract
// @param ids An array of ids that are to be withdrawn
function withdrawERC721s(
IERC721 erc721,
uint256[] calldata ids
) external isPermitted(OWNER_ROLE) {
_withdrawERC721s(erc721, ids);
}
// @notice Withdraw multiple ERC1155 ids for a single ERC1155 contract
// @param erc1155 The address of the ERC155 contract
// @param ids An array of ids that are to be withdrawn
// @param amounts An array of amounts per id
function withdrawERC1155s(
IERC1155 erc1155,
uint256[] calldata ids,
uint256[] calldata amounts
) external isPermitted(OWNER_ROLE) {
_withdrawERC1155s(erc1155, ids, amounts);
}
// @notice Revoke approval on an array of assets and operators
// @dev Works for ERC20s, ERC721s, and ERC1155s
// @param notes A tuple that contains the protocol id, token address, and array of operators
function revokeApprovals(ApprovalNote[] calldata notes) external isPermitted(OWNER_ROLE) {
ApprovalNote memory note;
Protocol protocol;
uint256 length = notes.length;
for (uint256 i; i < length; ) {
note = notes[i];
protocol = note.protocol;
if (protocol == Protocol.ERC20) {
_revokeERC20Approvals(IERC20(note.token), note.operators);
} else if (protocol == Protocol.ERC721) {
_revokeERC721Approvals(IERC721(note.token), note.operators);
} else if (protocol == Protocol.ERC1155) {
_revokeERC1155Approvals(IERC1155(note.token), note.operators);
}
unchecked {
++i;
}
}
}
// @notice Revoke approval of an ERC20 for an array of operators
// @param erc20 The address of the ERC20 token
// @param operators The array of operators to have approval revoked
function revokeERC20Approvals(
IERC20 erc20,
address[] calldata operators
) external isPermitted(OWNER_ROLE) {
_revokeERC20Approvals(erc20, operators);
}
// @notice Revoke approval of an ERC721 for an array of operators
// @param erc721 The address of the ERC721 token
// @param operators The array of operators to have approval revoked
function revokeERC721Approvals(
IERC721 erc721,
address[] calldata operators
) external isPermitted(OWNER_ROLE) {
_revokeERC721Approvals(erc721, operators);
}
// @notice Revoke approval of an ERC1155 for an array of operators
// @param erc1155 The address of the ERC1155 token
// @param operators The array of operators to have approval revoked
function revokeERC1155Approvals(
IERC1155 erc1155,
address[] calldata operators
) external isPermitted(OWNER_ROLE) {
_revokeERC1155Approvals(erc1155, operators);
}
////////////////////////////////////////////////////
// Internal functions //////////////////////////////
////////////////////////////////////////////////////
function _withdrawETH(uint256 amount) internal {
(bool success, ) = msg.sender.call{value: amount}("");
if (!success) revert WithdrawFailed();
}
function _withdrawERC20(IERC20 erc20, uint256 amount) internal {
erc20.safeTransfer(msg.sender, amount);
}
function _withdrawERC721s(IERC721 erc721, uint256[] memory ids) internal {
uint256 length = ids.length;
for (uint256 i; i < length; ) {
erc721.safeTransferFrom(address(this), msg.sender, ids[i]);
unchecked {
++i;
}
}
}
function _withdrawERC1155s(IERC1155 erc1155, uint256[] memory ids, uint256[] memory amounts) internal {
// safeBatchTransferFrom will validate the array lengths
erc1155.safeBatchTransferFrom(address(this), msg.sender, ids, amounts, "");
}
function _revokeERC20Approvals(IERC20 erc20, address[] memory operators) internal {
uint256 length = operators.length;
for (uint256 i; i < length; ) {
erc20.safeApprove(operators[i], 0);
unchecked {
++i;
}
}
}
function _revokeERC721Approvals(IERC721 erc721, address[] memory operators) internal {
uint256 length = operators.length;
for (uint256 i; i < length; ) {
erc721.setApprovalForAll(operators[i], false);
unchecked {
++i;
}
}
}
function _revokeERC1155Approvals(IERC1155 erc1155, address[] memory operators) internal {
uint256 length = operators.length;
for (uint256 i; i < length; ) {
erc1155.setApprovalForAll(operators[i], false);
unchecked {
++i;
}
}
}
////////////////////////////////////////////////////
// Fallback functions //////////////////////////////
////////////////////////////////////////////////////
receive() external payable {}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
import "./ACL.sol";
import "./Roles.sol";
// @notice The OWNER_ROLE must be set in the importing contract's constructor or initialize function
abstract contract AccessController is ACL, Roles {
using StorageAPI for bytes32;
event PermissionSet(bytes32 role, address account, bool permission);
error UnsafeSetting();
error InvalidAccount();
// @notice Sets user permission over a role
// @param role The bytes32 value of the role
// @param account The address of the account
// @param permission The permission status
function setPermission(
bytes32 role,
address account,
bool permission
) external isPermitted(OWNER_ROLE) {
if (account == address(0)) revert InvalidAccount();
if (role == OWNER_ROLE && account == msg.sender && permission == false)
revert UnsafeSetting();
_setPermission(role, account, permission);
}
// @notice Internal function to set user permission over a role
// @param role The bytes32 value of the role
// @param account The address of the account
// @param permission The permission status
function _setPermission(bytes32 role, address account, bool permission) internal {
bytes32 key = _getKey(role, account);
key.setBool(permission);
emit PermissionSet(role, account, permission);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [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://consensys.net/diligence/blog/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/v0.8.0/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: GPL-3.0-only
pragma solidity ^0.8.16;
library CommandBuilder {
uint256 constant IDX_VARIABLE_LENGTH = 0x80;
uint256 constant IDX_VALUE_MASK = 0x7f;
uint256 constant IDX_END_OF_ARGS = 0xff;
uint256 constant IDX_USE_STATE = 0xfe;
uint256 constant IDX_ARRAY_START = 0xfd;
uint256 constant IDX_TUPLE_START = 0xfc;
uint256 constant IDX_DYNAMIC_END = 0xfb;
function buildInputs(
bytes[] memory state,
bytes4 selector,
bytes32 indices,
uint256 indicesLength
) internal view returns (bytes memory ret) {
uint256 idx; // The current command index
uint256 offsetIdx; // The index of the current free offset
uint256 count; // Number of bytes in whole ABI encoded message
uint256 free; // Pointer to first free byte in tail part of message
uint256[] memory dynamicLengths = new uint256[](10); // Optionally store the length of all dynamic types (a command cannot fit more than 10 dynamic types)
bytes memory stateData; // Optionally encode the current state if the call requires it
// Determine the length of the encoded data
for (uint256 i; i < indicesLength; ) {
idx = uint8(indices[i]);
if (idx == IDX_END_OF_ARGS) {
indicesLength = i;
break;
}
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_USE_STATE) {
if (stateData.length == 0) {
stateData = abi.encode(state);
}
unchecked {
count += stateData.length;
}
} else {
(dynamicLengths, offsetIdx, count, i) = setupDynamicType(
state,
indices,
dynamicLengths,
idx,
offsetIdx,
count,
i
);
}
} else {
count = setupStaticVariable(state, count, idx);
}
unchecked {
free += 32;
++i;
}
}
// Encode it
ret = new bytes(count + 4);
assembly {
mstore(add(ret, 32), selector)
}
offsetIdx = 0;
// Use count to track current memory slot
assembly {
count := add(ret, 36)
}
for (uint256 i; i < indicesLength; ) {
idx = uint8(indices[i]);
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_USE_STATE) {
assembly {
mstore(count, free)
}
memcpy(stateData, 32, ret, free + 4, stateData.length - 32);
unchecked {
free += stateData.length - 32;
}
} else if (idx == IDX_ARRAY_START) {
// Start of dynamic type, put pointer in current slot
assembly {
mstore(count, free)
}
(offsetIdx, free, i, ) = encodeDynamicArray(
ret,
state,
indices,
dynamicLengths,
offsetIdx,
free,
i
);
} else if (idx == IDX_TUPLE_START) {
// Start of dynamic type, put pointer in current slot
assembly {
mstore(count, free)
}
(offsetIdx, free, i, ) = encodeDynamicTuple(
ret,
state,
indices,
dynamicLengths,
offsetIdx,
free,
i
);
} else {
// Variable length data
uint256 argLen = state[idx & IDX_VALUE_MASK].length;
// Put a pointer in the current slot and write the data to first free slot
assembly {
mstore(count, free)
}
memcpy(
state[idx & IDX_VALUE_MASK],
0,
ret,
free + 4,
argLen
);
unchecked {
free += argLen;
}
}
} else {
// Fixed length data (length previously checked to be 32 bytes)
bytes memory stateVar = state[idx & IDX_VALUE_MASK];
// Write the data to current slot
assembly {
mstore(count, mload(add(stateVar, 32)))
}
}
unchecked {
count += 32;
++i;
}
}
}
function setupStaticVariable(
bytes[] memory state,
uint256 count,
uint256 idx
) internal pure returns (uint256 newCount) {
require(
state[idx & IDX_VALUE_MASK].length == 32,
"Static state variables must be 32 bytes"
);
unchecked {
newCount = count + 32;
}
}
function setupDynamicVariable(
bytes[] memory state,
uint256 count,
uint256 idx
) internal pure returns (uint256 newCount) {
bytes memory arg = state[idx & IDX_VALUE_MASK];
// Validate the length of the data in state is a multiple of 32
uint256 argLen = arg.length;
require(
argLen != 0 && argLen % 32 == 0,
"Dynamic state variables must be a multiple of 32 bytes"
);
// Add the length of the value, rounded up to the next word boundary, plus space for pointer
unchecked {
newCount = count + argLen + 32;
}
}
function setupDynamicType(
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 idx,
uint256 offsetIdx,
uint256 count,
uint256 index
) internal view returns (
uint256[] memory newDynamicLengths,
uint256 newOffsetIdx,
uint256 newCount,
uint256 newIndex
) {
if (idx == IDX_ARRAY_START) {
(newDynamicLengths, newOffsetIdx, newCount, newIndex) = setupDynamicArray(
state,
indices,
dynamicLengths,
offsetIdx,
count,
index
);
} else if (idx == IDX_TUPLE_START) {
(newDynamicLengths, newOffsetIdx, newCount, newIndex) = setupDynamicTuple(
state,
indices,
dynamicLengths,
offsetIdx,
count,
index
);
} else {
newDynamicLengths = dynamicLengths;
newOffsetIdx = offsetIdx;
newIndex = index;
newCount = setupDynamicVariable(state, count, idx);
}
}
function setupDynamicArray(
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 offsetIdx,
uint256 count,
uint256 index
) internal view returns (
uint256[] memory newDynamicLengths,
uint256 newOffsetIdx,
uint256 newCount,
uint256 newIndex
) {
// Current idx is IDX_ARRAY_START, next idx will contain the array length
unchecked {
newIndex = index + 1;
newCount = count + 32;
}
uint256 idx = uint8(indices[newIndex]);
require(
state[idx & IDX_VALUE_MASK].length == 32,
"Array length must be 32 bytes"
);
(newDynamicLengths, newOffsetIdx, newCount, newIndex) = setupDynamicTuple(
state,
indices,
dynamicLengths,
offsetIdx,
newCount,
newIndex
);
}
function setupDynamicTuple(
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 offsetIdx,
uint256 count,
uint256 index
) internal view returns (
uint256[] memory newDynamicLengths,
uint256 newOffsetIdx,
uint256 newCount,
uint256 newIndex
) {
uint256 idx;
uint256 offset;
newDynamicLengths = dynamicLengths;
// Progress to first index of the data and progress the next offset idx
unchecked {
newIndex = index + 1;
newOffsetIdx = offsetIdx + 1;
newCount = count + 32;
}
while (newIndex < 32) {
idx = uint8(indices[newIndex]);
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_DYNAMIC_END) {
newDynamicLengths[offsetIdx] = offset;
// explicit return saves gas ¯\\_(ツ)_/¯
return (newDynamicLengths, newOffsetIdx, newCount, newIndex);
} else {
require(idx != IDX_USE_STATE, "Cannot use state from inside dynamic type");
(newDynamicLengths, newOffsetIdx, newCount, newIndex) = setupDynamicType(
state,
indices,
newDynamicLengths,
idx,
newOffsetIdx,
newCount,
newIndex
);
}
} else {
newCount = setupStaticVariable(state, newCount, idx);
}
unchecked {
offset += 32;
++newIndex;
}
}
revert("Dynamic type was not properly closed");
}
function encodeDynamicArray(
bytes memory ret,
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 offsetIdx,
uint256 currentSlot,
uint256 index
) internal view returns (
uint256 newOffsetIdx,
uint256 newSlot,
uint256 newIndex,
uint256 length
) {
// Progress to array length metadata
unchecked {
newIndex = index + 1;
newSlot = currentSlot + 32;
}
// Encode array length
uint256 idx = uint8(indices[newIndex]);
// Array length value previously checked to be 32 bytes
bytes memory stateVar = state[idx & IDX_VALUE_MASK];
assembly {
mstore(add(add(ret, 36), currentSlot), mload(add(stateVar, 32)))
}
(newOffsetIdx, newSlot, newIndex, length) = encodeDynamicTuple(
ret,
state,
indices,
dynamicLengths,
offsetIdx,
newSlot,
newIndex
);
unchecked {
length += 32; // Increase length to account for array length metadata
}
}
function encodeDynamicTuple(
bytes memory ret,
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 offsetIdx,
uint256 currentSlot,
uint256 index
) internal view returns (
uint256 newOffsetIdx,
uint256 newSlot,
uint256 newIndex,
uint256 length
) {
uint256 idx;
uint256 argLen;
uint256 freePointer = dynamicLengths[offsetIdx]; // The pointer to the next free slot
unchecked {
newSlot = currentSlot + freePointer; // Update the next slot
newOffsetIdx = offsetIdx + 1; // Progress to next offsetIdx
newIndex = index + 1; // Progress to first index of the data
}
// Shift currentSlot to correct location in memory
assembly {
currentSlot := add(add(ret, 36), currentSlot)
}
while (newIndex < 32) {
idx = uint8(indices[newIndex]);
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_DYNAMIC_END) {
break;
} else if (idx == IDX_ARRAY_START) {
// Start of dynamic type, put pointer in current slot
assembly {
mstore(currentSlot, freePointer)
}
(newOffsetIdx, newSlot, newIndex, argLen) = encodeDynamicArray(
ret,
state,
indices,
dynamicLengths,
newOffsetIdx,
newSlot,
newIndex
);
unchecked {
freePointer += argLen;
length += (argLen + 32); // data + pointer
}
} else if (idx == IDX_TUPLE_START) {
// Start of dynamic type, put pointer in current slot
assembly {
mstore(currentSlot, freePointer)
}
(newOffsetIdx, newSlot, newIndex, argLen) = encodeDynamicTuple(
ret,
state,
indices,
dynamicLengths,
newOffsetIdx,
newSlot,
newIndex
);
unchecked {
freePointer += argLen;
length += (argLen + 32); // data + pointer
}
} else {
// Variable length data
argLen = state[idx & IDX_VALUE_MASK].length;
// Start of dynamic type, put pointer in current slot
assembly {
mstore(currentSlot, freePointer)
}
memcpy(
state[idx & IDX_VALUE_MASK],
0,
ret,
newSlot + 4,
argLen
);
unchecked {
newSlot += argLen;
freePointer += argLen;
length += (argLen + 32); // data + pointer
}
}
} else {
// Fixed length data (length previously checked to be 32 bytes)
bytes memory stateVar = state[idx & IDX_VALUE_MASK];
// Write to first free slot
assembly {
mstore(currentSlot, mload(add(stateVar, 32)))
}
unchecked {
length += 32;
}
}
unchecked {
currentSlot += 32;
++newIndex;
}
}
}
function writeOutputs(
bytes[] memory state,
bytes1 index,
bytes memory output
) internal pure returns (bytes[] memory) {
uint256 idx = uint8(index);
if (idx == IDX_END_OF_ARGS) return state;
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_USE_STATE) {
state = abi.decode(output, (bytes[]));
} else {
require(idx & IDX_VALUE_MASK < state.length, "Index out-of-bounds");
// Check the first field is 0x20 (because we have only a single return value)
uint256 argPtr;
assembly {
argPtr := mload(add(output, 32))
}
require(
argPtr == 32,
"Only one return value permitted (variable)"
);
assembly {
// Overwrite the first word of the return data with the length - 32
mstore(add(output, 32), sub(mload(output), 32))
// Insert a pointer to the return data, starting at the second word, into state
mstore(
add(add(state, 32), mul(and(idx, IDX_VALUE_MASK), 32)),
add(output, 32)
)
}
}
} else {
require(idx & IDX_VALUE_MASK < state.length, "Index out-of-bounds");
// Single word
require(
output.length == 32,
"Only one return value permitted (static)"
);
state[idx & IDX_VALUE_MASK] = output;
}
return state;
}
function writeTuple(
bytes[] memory state,
bytes1 index,
bytes memory output
) internal view {
uint256 idx = uint8(index);
if (idx == IDX_END_OF_ARGS) return;
bytes memory entry = state[idx & IDX_VALUE_MASK] = new bytes(output.length + 32);
memcpy(output, 0, entry, 32, output.length);
assembly {
let l := mload(output)
mstore(add(entry, 32), l)
}
}
function memcpy(
bytes memory src,
uint256 srcIdx,
bytes memory dest,
uint256 destIdx,
uint256 len
) internal view {
assembly {
pop(
staticcall(
gas(),
4,
add(add(src, 32), srcIdx),
len,
add(add(dest, 32), destIdx),
len
)
)
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[EIP].
*
* _Available since v3.1._
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the amount of tokens of token type `id` owned by `account`.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the caller.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/utils/ERC721Holder.sol)
pragma solidity ^0.8.0;
import "../IERC721Receiver.sol";
/**
* @dev Implementation of the {IERC721Receiver} interface.
*
* Accepts all token transfers.
* Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
*/
contract ERC721Holder is IERC721Receiver {
/**
* @dev See {IERC721Receiver-onERC721Received}.
*
* Always returns `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address,
address,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC721Received.selector;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/utils/ERC1155Holder.sol)
pragma solidity ^0.8.0;
import "./ERC1155Receiver.sol";
/**
* Simple implementation of `ERC1155Receiver` that will allow a contract to hold ERC1155 tokens.
*
* IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be
* stuck.
*
* @dev _Available since v3.1._
*/
contract ERC1155Holder is ERC1155Receiver {
function onERC1155Received(
address,
address,
uint256,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155Received.selector;
}
function onERC1155BatchReceived(
address,
address,
uint256[] memory,
uint256[] memory,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155BatchReceived.selector;
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
import "../libraries/StorageAPI.sol";
abstract contract ACL {
using StorageAPI for bytes32;
error NotPermitted();
modifier isPermitted(bytes32 role) {
bool permitted = _getPermission(role, msg.sender); // TODO: support GSN/Account abstraction
if (!permitted) revert NotPermitted();
_;
}
// @notice Gets user permission for a role
// @param role The bytes32 value of the role
// @param account The address of the account
// @return The permission status
function getPermission(bytes32 role, address account) external view returns (bool) {
return _getPermission(role, account);
}
// @notice Internal function to get user permission for a role
// @param role The bytes32 value of the role
// @param account The address of the account
// @return The permission status
function _getPermission(bytes32 role, address account) internal view returns (bool) {
bytes32 key = _getKey(role, account);
return key.getBool();
}
// @notice Internal function to get the key for the storage slot
// @param role The bytes32 value of the role
// @param account The address of the account
// @return The bytes32 storage slot
function _getKey(bytes32 role, address account) internal pure returns (bytes32) {
return keccak256(abi.encode(role, account));
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
abstract contract Roles {
// Using same slot generation technique as eip-1967 -- https://eips.ethereum.org/EIPS/eip-1967
bytes32 public constant OWNER_ROLE = bytes32(uint256(keccak256("enso.access.roles.owner")) - 1);
bytes32 public constant EXECUTOR_ROLE = bytes32(uint256(keccak256("enso.access.roles.executor")) - 1);
bytes32 public constant MODULE_ROLE = bytes32(uint256(keccak256("enso.access.roles.module")) - 1);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
// 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/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../IERC1155Receiver.sol";
import "../../../utils/introspection/ERC165.sol";
/**
* @dev _Available since v3.1._
*/
abstract contract ERC1155Receiver is ERC165, IERC1155Receiver {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
library StorageAPI {
function setBytes(bytes32 key, bytes memory data) internal {
bytes32 slot = keccak256(abi.encodePacked(key));
assembly {
let length := mload(data)
switch gt(length, 0x1F)
case 0x00 {
sstore(key, or(mload(add(data, 0x20)), mul(length, 2)))
}
case 0x01 {
sstore(key, add(mul(length, 2), 1))
for {
let i := 0
} lt(mul(i, 0x20), length) {
i := add(i, 0x01)
} {
sstore(add(slot, i), mload(add(data, mul(add(i, 1), 0x20))))
}
}
}
}
function setBytes32(bytes32 key, bytes32 val) internal {
assembly {
sstore(key, val)
}
}
function setAddress(bytes32 key, address a) internal {
assembly {
sstore(key, a)
}
}
function setUint256(bytes32 key, uint256 val) internal {
assembly {
sstore(key, val)
}
}
function setInt256(bytes32 key, int256 val) internal {
assembly {
sstore(key, val)
}
}
function setBool(bytes32 key, bool val) internal {
assembly {
sstore(key, val)
}
}
function getBytes(bytes32 key) internal view returns (bytes memory data) {
bytes32 slot = keccak256(abi.encodePacked(key));
assembly {
let length := sload(key)
switch and(length, 0x01)
case 0x00 {
let decodedLength := div(and(length, 0xFF), 2)
mstore(data, decodedLength)
mstore(add(data, 0x20), and(length, not(0xFF)))
mstore(0x40, add(data, 0x40))
}
case 0x01 {
let decodedLength := div(length, 2)
let i := 0
mstore(data, decodedLength)
for {
} lt(mul(i, 0x20), decodedLength) {
i := add(i, 0x01)
} {
mstore(add(add(data, 0x20), mul(i, 0x20)), sload(add(slot, i)))
}
mstore(0x40, add(data, add(0x20, mul(i, 0x20))))
}
}
}
function getBytes32(bytes32 key) internal view returns (bytes32 val) {
assembly {
val := sload(key)
}
}
function getAddress(bytes32 key) internal view returns (address a) {
assembly {
a := sload(key)
}
}
function getUint256(bytes32 key) internal view returns (uint256 val) {
assembly {
val := sload(key)
}
}
function getInt256(bytes32 key) internal view returns (int256 val) {
assembly {
val := sload(key)
}
}
function getBool(bytes32 key) internal view returns (bool val) {
assembly {
val := sload(key)
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev _Available since v3.1._
*/
interface IERC1155Receiver is IERC165 {
/**
* @dev Handles the receipt of a single ERC1155 token type. This function is
* called at the end of a `safeTransferFrom` after the balance has been updated.
*
* NOTE: To accept the transfer, this must return
* `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
* (i.e. 0xf23a6e61, or its own function selector).
*
* @param operator The address which initiated the transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param id The ID of the token being transferred
* @param value The amount of tokens being transferred
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
/**
* @dev Handles the receipt of a multiple ERC1155 token types. This function
* is called at the end of a `safeBatchTransferFrom` after the balances have
* been updated.
*
* NOTE: To accept the transfer(s), this must return
* `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
* (i.e. 0xbc197c81, or its own function selector).
*
* @param operator The address which initiated the batch transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param ids An array containing ids of each token being transferred (order and length must match values array)
* @param values An array containing amounts of each token being transferred (order and length must match ids array)
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
File 2 of 4: WETH9
// Copyright (C) 2015, 2016, 2017 Dapphub
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
pragma solidity ^0.4.18;
contract WETH9 {
string public name = "Wrapped Ether";
string public symbol = "WETH";
uint8 public decimals = 18;
event Approval(address indexed src, address indexed guy, uint wad);
event Transfer(address indexed src, address indexed dst, uint wad);
event Deposit(address indexed dst, uint wad);
event Withdrawal(address indexed src, uint wad);
mapping (address => uint) public balanceOf;
mapping (address => mapping (address => uint)) public allowance;
function() public payable {
deposit();
}
function deposit() public payable {
balanceOf[msg.sender] += msg.value;
Deposit(msg.sender, msg.value);
}
function withdraw(uint wad) public {
require(balanceOf[msg.sender] >= wad);
balanceOf[msg.sender] -= wad;
msg.sender.transfer(wad);
Withdrawal(msg.sender, wad);
}
function totalSupply() public view returns (uint) {
return this.balance;
}
function approve(address guy, uint wad) public returns (bool) {
allowance[msg.sender][guy] = wad;
Approval(msg.sender, guy, wad);
return true;
}
function transfer(address dst, uint wad) public returns (bool) {
return transferFrom(msg.sender, dst, wad);
}
function transferFrom(address src, address dst, uint wad)
public
returns (bool)
{
require(balanceOf[src] >= wad);
if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) {
require(allowance[src][msg.sender] >= wad);
allowance[src][msg.sender] -= wad;
}
balanceOf[src] -= wad;
balanceOf[dst] += wad;
Transfer(src, dst, wad);
return true;
}
}
/*
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
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The licenses for most software and other practical works are designed
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the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
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To protect your rights, we need to prevent others from denying you
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Developers that use the GNU GPL protect your rights with two steps:
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*/File 3 of 4: EnsoShortcuts
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.0;
import { VM } from "enso-weiroll/VM.sol";
import { MinimalWallet } from "shortcuts-contracts/wallet/MinimalWallet.sol";
import { AccessController } from "shortcuts-contracts/access/AccessController.sol";
contract EnsoShortcuts is VM, MinimalWallet, AccessController {
address public executor;
constructor(address owner_, address executor_) {
_setPermission(OWNER_ROLE, owner_, true);
executor = executor_;
}
// @notice Execute a shortcut
// @param commands An array of bytes32 values that encode calls
// @param state An array of bytes that are used to generate call data for each command
function executeShortcut(
bytes32[] calldata commands,
bytes[] calldata state
) external payable returns (bytes[] memory) {
// we could use the AccessController here to check if the msg.sender is the executor address
// but as it's a hot path we do a less gas intensive check
if (msg.sender != executor) revert NotPermitted();
return _execute(commands, state);
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
import "./CommandBuilder.sol";
abstract contract VM {
using CommandBuilder for bytes[];
uint256 constant FLAG_CT_DELEGATECALL = 0x00; // Delegate call not currently supported
uint256 constant FLAG_CT_CALL = 0x01;
uint256 constant FLAG_CT_STATICCALL = 0x02;
uint256 constant FLAG_CT_VALUECALL = 0x03;
uint256 constant FLAG_CT_MASK = 0x03;
uint256 constant FLAG_DATA = 0x20;
uint256 constant FLAG_EXTENDED_COMMAND = 0x40;
uint256 constant FLAG_TUPLE_RETURN = 0x80;
uint256 constant SHORT_COMMAND_FILL =
0x000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;
error ExecutionFailed(
uint256 command_index,
address target,
string message
);
function _execute(bytes32[] calldata commands, bytes[] memory state)
internal
returns (bytes[] memory)
{
bytes32 command;
uint256 flags;
bytes32 indices;
bool success;
bytes memory outData;
uint256 commandsLength = commands.length;
uint256 indicesLength;
for (uint256 i; i < commandsLength; i = _uncheckedIncrement(i)) {
command = commands[i];
flags = uint256(uint8(bytes1(command << 32)));
if (flags & FLAG_EXTENDED_COMMAND != 0) {
i = _uncheckedIncrement(i);
indices = commands[i];
indicesLength = 32;
} else {
indices = bytes32(uint256(command << 40) | SHORT_COMMAND_FILL);
indicesLength = 6;
}
if (flags & FLAG_CT_MASK == FLAG_CT_CALL) {
(success, outData) = address(uint160(uint256(command))).call( // target
// inputs
flags & FLAG_DATA == 0
? state.buildInputs(
bytes4(command), // selector
indices,
indicesLength
)
: state[
uint8(bytes1(indices)) &
CommandBuilder.IDX_VALUE_MASK
]
);
} else if (flags & FLAG_CT_MASK == FLAG_CT_STATICCALL) {
(success, outData) = address(uint160(uint256(command))) // target
.staticcall(
// inputs
flags & FLAG_DATA == 0
? state.buildInputs(
bytes4(command), // selector
indices,
indicesLength
)
: state[
uint8(bytes1(indices)) &
CommandBuilder.IDX_VALUE_MASK
]
);
} else if (flags & FLAG_CT_MASK == FLAG_CT_VALUECALL) {
bytes memory v = state[
uint8(bytes1(indices)) &
CommandBuilder.IDX_VALUE_MASK
];
require(v.length == 32, "Value must be 32 bytes");
uint256 callEth = uint256(bytes32(v));
(success, outData) = address(uint160(uint256(command))).call{ // target
value: callEth
}(
// inputs
flags & FLAG_DATA == 0
? state.buildInputs(
bytes4(command), // selector
indices << 8, // skip value input
indicesLength - 1 // max indices length reduced by value input
)
: state[
uint8(bytes1(indices << 8)) & // first byte after value input
CommandBuilder.IDX_VALUE_MASK
]
);
} else {
revert("Invalid calltype");
}
if (!success) {
string memory message = "Unknown";
if (outData.length > 68) {
// This might be an error message, parse the outData
// Estimate the bytes length of the possible error message
uint256 estimatedLength = _estimateBytesLength(outData, 68);
// Remove selector. First 32 bytes should be a pointer that indicates the start of data in memory
assembly {
outData := add(outData, 4)
}
uint256 pointer = uint256(bytes32(outData));
if (pointer == 32) {
// Remove pointer. If it is a string, the next 32 bytes will hold the size
assembly {
outData := add(outData, 32)
}
uint256 size = uint256(bytes32(outData));
// If the size variable is the same as the estimated bytes length, we can be fairly certain
// this is a dynamic string, so convert the bytes to a string and emit the message. While an
// error function with 3 static parameters is capable of producing a similar output, there is
// low risk of a contract unintentionally emitting a message.
if (size == estimatedLength) {
// Remove size. The remaining data should be the string content
assembly {
outData := add(outData, 32)
}
message = string(outData);
}
}
}
revert ExecutionFailed({
command_index: flags & FLAG_EXTENDED_COMMAND == 0
? i
: i - 1,
target: address(uint160(uint256(command))),
message: message
});
}
if (flags & FLAG_TUPLE_RETURN != 0) {
state.writeTuple(bytes1(command << 88), outData);
} else {
state = state.writeOutputs(bytes1(command << 88), outData);
}
}
return state;
}
function _estimateBytesLength(bytes memory data, uint256 pos) internal pure returns (uint256 estimate) {
uint256 length = data.length;
estimate = length - pos; // Assume length equals alloted space
for (uint256 i = pos; i < length; ) {
if (data[i] == 0) {
// Zero bytes found, adjust estimated length
estimate = i - pos;
break;
}
unchecked {
++i;
}
}
}
function _uncheckedIncrement(uint256 i) private pure returns (uint256) {
unchecked {
++i;
}
return i;
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol";
import "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol";
import "../access/ACL.sol";
import "../access/Roles.sol";
contract MinimalWallet is ACL, Roles, ERC721Holder, ERC1155Holder {
using SafeERC20 for IERC20;
enum Protocol {
ETH,
ERC20,
ERC721,
ERC1155
}
struct TransferNote {
Protocol protocol;
address token;
uint256[] ids;
uint256[] amounts;
}
struct ApprovalNote {
Protocol protocol;
address token;
address[] operators;
}
error WithdrawFailed();
error InvalidArrayLength();
////////////////////////////////////////////////////
// External functions //////////////////////////////
////////////////////////////////////////////////////
// @notice Withdraw an array of assets
// @dev Works for ETH, ERC20s, ERC721s, and ERC1155s
// @param notes A tuple that contains the protocol id, token address, array of ids and amounts
function withdraw(TransferNote[] calldata notes) external isPermitted(OWNER_ROLE) {
TransferNote memory note;
Protocol protocol;
uint256[] memory ids;
uint256[] memory amounts;
uint256 length = notes.length;
for (uint256 i; i < length; ) {
note = notes[i];
protocol = note.protocol;
if (protocol == Protocol.ETH) {
amounts = note.amounts;
if (amounts.length != 1) revert InvalidArrayLength();
_withdrawETH(amounts[0]);
} else if (protocol == Protocol.ERC20) {
amounts = note.amounts;
if (amounts.length != 1) revert InvalidArrayLength();
_withdrawERC20(IERC20(note.token), amounts[0]);
} else if (protocol == Protocol.ERC721) {
ids = note.ids;
_withdrawERC721s(IERC721(note.token), ids);
} else if (protocol == Protocol.ERC1155) {
ids = note.ids;
amounts = note.amounts;
_withdrawERC1155s(IERC1155(note.token), ids, amounts);
}
unchecked {
++i;
}
}
}
// @notice Withdraw ETH from this contract to the msg.sender
// @param amount The amount of ETH to be withdrawn
function withdrawETH(uint256 amount) external isPermitted(OWNER_ROLE) {
_withdrawETH(amount);
}
// @notice Withdraw ERC20s
// @param erc20s An array of erc20 addresses
// @param amounts An array of amounts for each erc20
function withdrawERC20s(
IERC20[] calldata erc20s,
uint256[] calldata amounts
) external isPermitted(OWNER_ROLE) {
uint256 length = erc20s.length;
if (amounts.length != length) revert InvalidArrayLength();
for (uint256 i; i < length; ) {
_withdrawERC20(erc20s[i], amounts[i]);
unchecked {
++i;
}
}
}
// @notice Withdraw multiple ERC721 ids for a single ERC721 contract
// @param erc721 The address of the ERC721 contract
// @param ids An array of ids that are to be withdrawn
function withdrawERC721s(
IERC721 erc721,
uint256[] calldata ids
) external isPermitted(OWNER_ROLE) {
_withdrawERC721s(erc721, ids);
}
// @notice Withdraw multiple ERC1155 ids for a single ERC1155 contract
// @param erc1155 The address of the ERC155 contract
// @param ids An array of ids that are to be withdrawn
// @param amounts An array of amounts per id
function withdrawERC1155s(
IERC1155 erc1155,
uint256[] calldata ids,
uint256[] calldata amounts
) external isPermitted(OWNER_ROLE) {
_withdrawERC1155s(erc1155, ids, amounts);
}
// @notice Revoke approval on an array of assets and operators
// @dev Works for ERC20s, ERC721s, and ERC1155s
// @param notes A tuple that contains the protocol id, token address, and array of operators
function revokeApprovals(ApprovalNote[] calldata notes) external isPermitted(OWNER_ROLE) {
ApprovalNote memory note;
Protocol protocol;
uint256 length = notes.length;
for (uint256 i; i < length; ) {
note = notes[i];
protocol = note.protocol;
if (protocol == Protocol.ERC20) {
_revokeERC20Approvals(IERC20(note.token), note.operators);
} else if (protocol == Protocol.ERC721) {
_revokeERC721Approvals(IERC721(note.token), note.operators);
} else if (protocol == Protocol.ERC1155) {
_revokeERC1155Approvals(IERC1155(note.token), note.operators);
}
unchecked {
++i;
}
}
}
// @notice Revoke approval of an ERC20 for an array of operators
// @param erc20 The address of the ERC20 token
// @param operators The array of operators to have approval revoked
function revokeERC20Approvals(
IERC20 erc20,
address[] calldata operators
) external isPermitted(OWNER_ROLE) {
_revokeERC20Approvals(erc20, operators);
}
// @notice Revoke approval of an ERC721 for an array of operators
// @param erc721 The address of the ERC721 token
// @param operators The array of operators to have approval revoked
function revokeERC721Approvals(
IERC721 erc721,
address[] calldata operators
) external isPermitted(OWNER_ROLE) {
_revokeERC721Approvals(erc721, operators);
}
// @notice Revoke approval of an ERC1155 for an array of operators
// @param erc1155 The address of the ERC1155 token
// @param operators The array of operators to have approval revoked
function revokeERC1155Approvals(
IERC1155 erc1155,
address[] calldata operators
) external isPermitted(OWNER_ROLE) {
_revokeERC1155Approvals(erc1155, operators);
}
////////////////////////////////////////////////////
// Internal functions //////////////////////////////
////////////////////////////////////////////////////
function _withdrawETH(uint256 amount) internal {
(bool success, ) = msg.sender.call{value: amount}("");
if (!success) revert WithdrawFailed();
}
function _withdrawERC20(IERC20 erc20, uint256 amount) internal {
erc20.safeTransfer(msg.sender, amount);
}
function _withdrawERC721s(IERC721 erc721, uint256[] memory ids) internal {
uint256 length = ids.length;
for (uint256 i; i < length; ) {
erc721.safeTransferFrom(address(this), msg.sender, ids[i]);
unchecked {
++i;
}
}
}
function _withdrawERC1155s(IERC1155 erc1155, uint256[] memory ids, uint256[] memory amounts) internal {
// safeBatchTransferFrom will validate the array lengths
erc1155.safeBatchTransferFrom(address(this), msg.sender, ids, amounts, "");
}
function _revokeERC20Approvals(IERC20 erc20, address[] memory operators) internal {
uint256 length = operators.length;
for (uint256 i; i < length; ) {
erc20.safeApprove(operators[i], 0);
unchecked {
++i;
}
}
}
function _revokeERC721Approvals(IERC721 erc721, address[] memory operators) internal {
uint256 length = operators.length;
for (uint256 i; i < length; ) {
erc721.setApprovalForAll(operators[i], false);
unchecked {
++i;
}
}
}
function _revokeERC1155Approvals(IERC1155 erc1155, address[] memory operators) internal {
uint256 length = operators.length;
for (uint256 i; i < length; ) {
erc1155.setApprovalForAll(operators[i], false);
unchecked {
++i;
}
}
}
////////////////////////////////////////////////////
// Fallback functions //////////////////////////////
////////////////////////////////////////////////////
receive() external payable {}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
import "./ACL.sol";
import "./Roles.sol";
// @notice The OWNER_ROLE must be set in the importing contract's constructor or initialize function
abstract contract AccessController is ACL, Roles {
using StorageAPI for bytes32;
event PermissionSet(bytes32 role, address account, bool permission);
error UnsafeSetting();
error InvalidAccount();
// @notice Sets user permission over a role
// @param role The bytes32 value of the role
// @param account The address of the account
// @param permission The permission status
function setPermission(
bytes32 role,
address account,
bool permission
) external isPermitted(OWNER_ROLE) {
if (account == address(0)) revert InvalidAccount();
if (role == OWNER_ROLE && account == msg.sender && permission == false)
revert UnsafeSetting();
_setPermission(role, account, permission);
}
// @notice Internal function to set user permission over a role
// @param role The bytes32 value of the role
// @param account The address of the account
// @param permission The permission status
function _setPermission(bytes32 role, address account, bool permission) internal {
bytes32 key = _getKey(role, account);
key.setBool(permission);
emit PermissionSet(role, account, permission);
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
library CommandBuilder {
uint256 constant IDX_VARIABLE_LENGTH = 0x80;
uint256 constant IDX_VALUE_MASK = 0x7f;
uint256 constant IDX_END_OF_ARGS = 0xff;
uint256 constant IDX_USE_STATE = 0xfe;
uint256 constant IDX_ARRAY_START = 0xfd;
uint256 constant IDX_TUPLE_START = 0xfc;
uint256 constant IDX_DYNAMIC_END = 0xfb;
function buildInputs(
bytes[] memory state,
bytes4 selector,
bytes32 indices,
uint256 indicesLength
) internal view returns (bytes memory ret) {
uint256 idx; // The current command index
uint256 offsetIdx; // The index of the current free offset
uint256 count; // Number of bytes in whole ABI encoded message
uint256 free; // Pointer to first free byte in tail part of message
uint256[] memory dynamicLengths = new uint256[](10); // Optionally store the length of all dynamic types (a command cannot fit more than 10 dynamic types)
bytes memory stateData; // Optionally encode the current state if the call requires it
// Determine the length of the encoded data
for (uint256 i; i < indicesLength; ) {
idx = uint8(indices[i]);
if (idx == IDX_END_OF_ARGS) {
indicesLength = i;
break;
}
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_USE_STATE) {
if (stateData.length == 0) {
stateData = abi.encode(state);
}
unchecked {
count += stateData.length;
}
} else {
(dynamicLengths, offsetIdx, count, i) = setupDynamicType(
state,
indices,
dynamicLengths,
idx,
offsetIdx,
count,
i
);
}
} else {
count = setupStaticVariable(state, count, idx);
}
unchecked {
free += 32;
++i;
}
}
// Encode it
ret = new bytes(count + 4);
assembly {
mstore(add(ret, 32), selector)
}
offsetIdx = 0;
// Use count to track current memory slot
assembly {
count := add(ret, 36)
}
for (uint256 i; i < indicesLength; ) {
idx = uint8(indices[i]);
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_USE_STATE) {
assembly {
mstore(count, free)
}
memcpy(stateData, 32, ret, free + 4, stateData.length - 32);
unchecked {
free += stateData.length - 32;
}
} else if (idx == IDX_ARRAY_START) {
// Start of dynamic type, put pointer in current slot
assembly {
mstore(count, free)
}
(offsetIdx, free, i, ) = encodeDynamicArray(
ret,
state,
indices,
dynamicLengths,
offsetIdx,
free,
i
);
} else if (idx == IDX_TUPLE_START) {
// Start of dynamic type, put pointer in current slot
assembly {
mstore(count, free)
}
(offsetIdx, free, i, ) = encodeDynamicTuple(
ret,
state,
indices,
dynamicLengths,
offsetIdx,
free,
i
);
} else {
// Variable length data
uint256 argLen = state[idx & IDX_VALUE_MASK].length;
// Put a pointer in the current slot and write the data to first free slot
assembly {
mstore(count, free)
}
memcpy(
state[idx & IDX_VALUE_MASK],
0,
ret,
free + 4,
argLen
);
unchecked {
free += argLen;
}
}
} else {
// Fixed length data (length previously checked to be 32 bytes)
bytes memory stateVar = state[idx & IDX_VALUE_MASK];
// Write the data to current slot
assembly {
mstore(count, mload(add(stateVar, 32)))
}
}
unchecked {
count += 32;
++i;
}
}
}
function setupStaticVariable(
bytes[] memory state,
uint256 count,
uint256 idx
) internal pure returns (uint256 newCount) {
require(
state[idx & IDX_VALUE_MASK].length == 32,
"Static state variables must be 32 bytes"
);
unchecked {
newCount = count + 32;
}
}
function setupDynamicVariable(
bytes[] memory state,
uint256 count,
uint256 idx
) internal pure returns (uint256 newCount) {
bytes memory arg = state[idx & IDX_VALUE_MASK];
// Validate the length of the data in state is a multiple of 32
uint256 argLen = arg.length;
require(
argLen != 0 && argLen % 32 == 0,
"Dynamic state variables must be a multiple of 32 bytes"
);
// Add the length of the value, rounded up to the next word boundary, plus space for pointer
unchecked {
newCount = count + argLen + 32;
}
}
function setupDynamicType(
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 idx,
uint256 offsetIdx,
uint256 count,
uint256 index
) internal view returns (
uint256[] memory newDynamicLengths,
uint256 newOffsetIdx,
uint256 newCount,
uint256 newIndex
) {
if (idx == IDX_ARRAY_START) {
(newDynamicLengths, newOffsetIdx, newCount, newIndex) = setupDynamicArray(
state,
indices,
dynamicLengths,
offsetIdx,
count,
index
);
} else if (idx == IDX_TUPLE_START) {
(newDynamicLengths, newOffsetIdx, newCount, newIndex) = setupDynamicTuple(
state,
indices,
dynamicLengths,
offsetIdx,
count,
index
);
} else {
newDynamicLengths = dynamicLengths;
newOffsetIdx = offsetIdx;
newIndex = index;
newCount = setupDynamicVariable(state, count, idx);
}
}
function setupDynamicArray(
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 offsetIdx,
uint256 count,
uint256 index
) internal view returns (
uint256[] memory newDynamicLengths,
uint256 newOffsetIdx,
uint256 newCount,
uint256 newIndex
) {
// Current idx is IDX_ARRAY_START, next idx will contain the array length
unchecked {
newIndex = index + 1;
newCount = count + 32;
}
uint256 idx = uint8(indices[newIndex]);
require(
state[idx & IDX_VALUE_MASK].length == 32,
"Array length must be 32 bytes"
);
(newDynamicLengths, newOffsetIdx, newCount, newIndex) = setupDynamicTuple(
state,
indices,
dynamicLengths,
offsetIdx,
newCount,
newIndex
);
}
function setupDynamicTuple(
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 offsetIdx,
uint256 count,
uint256 index
) internal view returns (
uint256[] memory newDynamicLengths,
uint256 newOffsetIdx,
uint256 newCount,
uint256 newIndex
) {
uint256 idx;
uint256 offset;
newDynamicLengths = dynamicLengths;
// Progress to first index of the data and progress the next offset idx
unchecked {
newIndex = index + 1;
newOffsetIdx = offsetIdx + 1;
newCount = count + 32;
}
while (newIndex < 32) {
idx = uint8(indices[newIndex]);
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_DYNAMIC_END) {
newDynamicLengths[offsetIdx] = offset;
// explicit return saves gas ¯\\_(ツ)_/¯
return (newDynamicLengths, newOffsetIdx, newCount, newIndex);
} else {
require(idx != IDX_USE_STATE, "Cannot use state from inside dynamic type");
(newDynamicLengths, newOffsetIdx, newCount, newIndex) = setupDynamicType(
state,
indices,
newDynamicLengths,
idx,
newOffsetIdx,
newCount,
newIndex
);
}
} else {
newCount = setupStaticVariable(state, newCount, idx);
}
unchecked {
offset += 32;
++newIndex;
}
}
revert("Dynamic type was not properly closed");
}
function encodeDynamicArray(
bytes memory ret,
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 offsetIdx,
uint256 currentSlot,
uint256 index
) internal view returns (
uint256 newOffsetIdx,
uint256 newSlot,
uint256 newIndex,
uint256 length
) {
// Progress to array length metadata
unchecked {
newIndex = index + 1;
newSlot = currentSlot + 32;
}
// Encode array length
uint256 idx = uint8(indices[newIndex]);
// Array length value previously checked to be 32 bytes
bytes memory stateVar = state[idx & IDX_VALUE_MASK];
assembly {
mstore(add(add(ret, 36), currentSlot), mload(add(stateVar, 32)))
}
(newOffsetIdx, newSlot, newIndex, length) = encodeDynamicTuple(
ret,
state,
indices,
dynamicLengths,
offsetIdx,
newSlot,
newIndex
);
unchecked {
length += 32; // Increase length to account for array length metadata
}
}
function encodeDynamicTuple(
bytes memory ret,
bytes[] memory state,
bytes32 indices,
uint256[] memory dynamicLengths,
uint256 offsetIdx,
uint256 currentSlot,
uint256 index
) internal view returns (
uint256 newOffsetIdx,
uint256 newSlot,
uint256 newIndex,
uint256 length
) {
uint256 idx;
uint256 argLen;
uint256 freePointer = dynamicLengths[offsetIdx]; // The pointer to the next free slot
unchecked {
newSlot = currentSlot + freePointer; // Update the next slot
newOffsetIdx = offsetIdx + 1; // Progress to next offsetIdx
newIndex = index + 1; // Progress to first index of the data
}
// Shift currentSlot to correct location in memory
assembly {
currentSlot := add(add(ret, 36), currentSlot)
}
while (newIndex < 32) {
idx = uint8(indices[newIndex]);
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_DYNAMIC_END) {
break;
} else if (idx == IDX_ARRAY_START) {
// Start of dynamic type, put pointer in current slot
assembly {
mstore(currentSlot, freePointer)
}
(newOffsetIdx, newSlot, newIndex, argLen) = encodeDynamicArray(
ret,
state,
indices,
dynamicLengths,
newOffsetIdx,
newSlot,
newIndex
);
unchecked {
freePointer += argLen;
length += (argLen + 32); // data + pointer
}
} else if (idx == IDX_TUPLE_START) {
// Start of dynamic type, put pointer in current slot
assembly {
mstore(currentSlot, freePointer)
}
(newOffsetIdx, newSlot, newIndex, argLen) = encodeDynamicTuple(
ret,
state,
indices,
dynamicLengths,
newOffsetIdx,
newSlot,
newIndex
);
unchecked {
freePointer += argLen;
length += (argLen + 32); // data + pointer
}
} else {
// Variable length data
argLen = state[idx & IDX_VALUE_MASK].length;
// Start of dynamic type, put pointer in current slot
assembly {
mstore(currentSlot, freePointer)
}
memcpy(
state[idx & IDX_VALUE_MASK],
0,
ret,
newSlot + 4,
argLen
);
unchecked {
newSlot += argLen;
freePointer += argLen;
length += (argLen + 32); // data + pointer
}
}
} else {
// Fixed length data (length previously checked to be 32 bytes)
bytes memory stateVar = state[idx & IDX_VALUE_MASK];
// Write to first free slot
assembly {
mstore(currentSlot, mload(add(stateVar, 32)))
}
unchecked {
length += 32;
}
}
unchecked {
currentSlot += 32;
++newIndex;
}
}
}
function writeOutputs(
bytes[] memory state,
bytes1 index,
bytes memory output
) internal pure returns (bytes[] memory) {
uint256 idx = uint8(index);
if (idx == IDX_END_OF_ARGS) return state;
if (idx & IDX_VARIABLE_LENGTH != 0) {
if (idx == IDX_USE_STATE) {
state = abi.decode(output, (bytes[]));
} else {
require(idx & IDX_VALUE_MASK < state.length, "Index out-of-bounds");
// Check the first field is 0x20 (because we have only a single return value)
uint256 argPtr;
assembly {
argPtr := mload(add(output, 32))
}
require(
argPtr == 32,
"Only one return value permitted (variable)"
);
assembly {
// Overwrite the first word of the return data with the length - 32
mstore(add(output, 32), sub(mload(output), 32))
// Insert a pointer to the return data, starting at the second word, into state
mstore(
add(add(state, 32), mul(and(idx, IDX_VALUE_MASK), 32)),
add(output, 32)
)
}
}
} else {
require(idx & IDX_VALUE_MASK < state.length, "Index out-of-bounds");
// Single word
require(
output.length == 32,
"Only one return value permitted (static)"
);
state[idx & IDX_VALUE_MASK] = output;
}
return state;
}
function writeTuple(
bytes[] memory state,
bytes1 index,
bytes memory output
) internal view {
uint256 idx = uint8(index);
if (idx == IDX_END_OF_ARGS) return;
bytes memory entry = state[idx & IDX_VALUE_MASK] = new bytes(output.length + 32);
memcpy(output, 0, entry, 32, output.length);
assembly {
let l := mload(output)
mstore(add(entry, 32), l)
}
}
function memcpy(
bytes memory src,
uint256 srcIdx,
bytes memory dest,
uint256 destIdx,
uint256 len
) internal view {
assembly {
pop(
staticcall(
gas(),
4,
add(add(src, 32), srcIdx),
len,
add(add(dest, 32), destIdx),
len
)
)
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[EIP].
*
* _Available since v3.1._
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the amount of tokens of token type `id` owned by `account`.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the caller.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/utils/ERC721Holder.sol)
pragma solidity ^0.8.0;
import "../IERC721Receiver.sol";
/**
* @dev Implementation of the {IERC721Receiver} interface.
*
* Accepts all token transfers.
* Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
*/
contract ERC721Holder is IERC721Receiver {
/**
* @dev See {IERC721Receiver-onERC721Received}.
*
* Always returns `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address,
address,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC721Received.selector;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/utils/ERC1155Holder.sol)
pragma solidity ^0.8.0;
import "./ERC1155Receiver.sol";
/**
* Simple implementation of `ERC1155Receiver` that will allow a contract to hold ERC1155 tokens.
*
* IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be
* stuck.
*
* @dev _Available since v3.1._
*/
contract ERC1155Holder is ERC1155Receiver {
function onERC1155Received(
address,
address,
uint256,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155Received.selector;
}
function onERC1155BatchReceived(
address,
address,
uint256[] memory,
uint256[] memory,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155BatchReceived.selector;
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
import "../libraries/StorageAPI.sol";
abstract contract ACL {
using StorageAPI for bytes32;
error NotPermitted();
modifier isPermitted(bytes32 role) {
bool permitted = _getPermission(role, msg.sender); // TODO: support GSN/Account abstraction
if (!permitted) revert NotPermitted();
_;
}
// @notice Gets user permission for a role
// @param role The bytes32 value of the role
// @param account The address of the account
// @return The permission status
function getPermission(bytes32 role, address account) external view returns (bool) {
return _getPermission(role, account);
}
// @notice Internal function to get user permission for a role
// @param role The bytes32 value of the role
// @param account The address of the account
// @return The permission status
function _getPermission(bytes32 role, address account) internal view returns (bool) {
bytes32 key = _getKey(role, account);
return key.getBool();
}
// @notice Internal function to get the key for the storage slot
// @param role The bytes32 value of the role
// @param account The address of the account
// @return The bytes32 storage slot
function _getKey(bytes32 role, address account) internal pure returns (bytes32) {
return keccak256(abi.encode(role, account));
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
abstract contract Roles {
// Using same slot generation technique as eip-1967 -- https://eips.ethereum.org/EIPS/eip-1967
bytes32 public constant OWNER_ROLE = bytes32(uint256(keccak256("enso.access.roles.owner")) - 1);
bytes32 public constant EXECUTOR_ROLE = bytes32(uint256(keccak256("enso.access.roles.executor")) - 1);
bytes32 public constant MODULE_ROLE = bytes32(uint256(keccak256("enso.access.roles.module")) - 1);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
// 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/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../IERC1155Receiver.sol";
import "../../../utils/introspection/ERC165.sol";
/**
* @dev _Available since v3.1._
*/
abstract contract ERC1155Receiver is ERC165, IERC1155Receiver {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
}
}
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.16;
library StorageAPI {
function setBytes(bytes32 key, bytes memory data) internal {
bytes32 slot = keccak256(abi.encodePacked(key));
assembly {
let length := mload(data)
switch gt(length, 0x1F)
case 0x00 {
sstore(key, or(mload(add(data, 0x20)), mul(length, 2)))
}
case 0x01 {
sstore(key, add(mul(length, 2), 1))
for {
let i := 0
} lt(mul(i, 0x20), length) {
i := add(i, 0x01)
} {
sstore(add(slot, i), mload(add(data, mul(add(i, 1), 0x20))))
}
}
}
}
function setBytes32(bytes32 key, bytes32 val) internal {
assembly {
sstore(key, val)
}
}
function setAddress(bytes32 key, address a) internal {
assembly {
sstore(key, a)
}
}
function setUint256(bytes32 key, uint256 val) internal {
assembly {
sstore(key, val)
}
}
function setInt256(bytes32 key, int256 val) internal {
assembly {
sstore(key, val)
}
}
function setBool(bytes32 key, bool val) internal {
assembly {
sstore(key, val)
}
}
function getBytes(bytes32 key) internal view returns (bytes memory data) {
bytes32 slot = keccak256(abi.encodePacked(key));
assembly {
let length := sload(key)
switch and(length, 0x01)
case 0x00 {
let decodedLength := div(and(length, 0xFF), 2)
mstore(data, decodedLength)
mstore(add(data, 0x20), and(length, not(0xFF)))
mstore(0x40, add(data, 0x40))
}
case 0x01 {
let decodedLength := div(length, 2)
let i := 0
mstore(data, decodedLength)
for {
} lt(mul(i, 0x20), decodedLength) {
i := add(i, 0x01)
} {
mstore(add(add(data, 0x20), mul(i, 0x20)), sload(add(slot, i)))
}
mstore(0x40, add(data, add(0x20, mul(i, 0x20))))
}
}
}
function getBytes32(bytes32 key) internal view returns (bytes32 val) {
assembly {
val := sload(key)
}
}
function getAddress(bytes32 key) internal view returns (address a) {
assembly {
a := sload(key)
}
}
function getUint256(bytes32 key) internal view returns (uint256 val) {
assembly {
val := sload(key)
}
}
function getInt256(bytes32 key) internal view returns (int256 val) {
assembly {
val := sload(key)
}
}
function getBool(bytes32 key) internal view returns (bool val) {
assembly {
val := sload(key)
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev _Available since v3.1._
*/
interface IERC1155Receiver is IERC165 {
/**
* @dev Handles the receipt of a single ERC1155 token type. This function is
* called at the end of a `safeTransferFrom` after the balance has been updated.
*
* NOTE: To accept the transfer, this must return
* `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
* (i.e. 0xf23a6e61, or its own function selector).
*
* @param operator The address which initiated the transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param id The ID of the token being transferred
* @param value The amount of tokens being transferred
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
/**
* @dev Handles the receipt of a multiple ERC1155 token types. This function
* is called at the end of a `safeBatchTransferFrom` after the balances have
* been updated.
*
* NOTE: To accept the transfer(s), this must return
* `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
* (i.e. 0xbc197c81, or its own function selector).
*
* @param operator The address which initiated the batch transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param ids An array containing ids of each token being transferred (order and length must match values array)
* @param values An array containing amounts of each token being transferred (order and length must match ids array)
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
File 4 of 4: EnsoShortcutsHelpers
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.16;
/**
* @dev SignedMathHelpers contract is recommended to use only in Shortcuts passed to EnsoWallet.
*
* This contract functions allow to dynamically get the data during Shortcut transaction execution
* that usually would be read between transactions
*/
contract EnsoShortcutsHelpers {
uint256 public constant VERSION = 3;
/**
* @dev Returns the ether balance of given `balanceAddress`.
*/
function getBalance(address balanceAddress) external view returns (uint256 balance) {
return address(balanceAddress).balance;
}
/**
* @dev Returns the current block timestamp.
*/
function getBlockTimestamp() external view returns (uint256 timestamp) {
return block.timestamp;
}
/**
* @dev Reverts depending on a truth condition
*/
function check(bool condition) external pure {
if (!condition) revert("Condition not met");
}
/**
* @dev Returns a value depending on a truth condition
*/
function toggle(bool condition, uint256 a, uint256 b) external pure returns (uint256) {
if (condition) {
return a;
} else {
return b;
}
}
/**
* @dev Returns the inverse bool
*/
function not(bool condition) external pure returns (bool) {
return !condition;
}
/**
* @dev Returns bool for a == b
*/
function isEqual(uint256 a, uint256 b) external pure returns (bool) {
return a == b;
}
/**
* @dev Returns bool for a < b
*/
function isLessThan(uint256 a, uint256 b) external pure returns (bool) {
return a < b;
}
/**
* @dev Returns bool for a <= b
*/
function isEqualOrLessThan(uint256 a, uint256 b) external pure returns (bool) {
return a <= b;
}
/**
* @dev Returns bool for a > b
*/
function isGreaterThan(uint256 a, uint256 b) external pure returns (bool) {
return a > b;
}
/**
* @dev Returns bool for a >= b
*/
function isEqualOrGreaterThan(uint256 a, uint256 b) external pure returns (bool) {
return a >= b;
}
/**
* @dev Returns bool for a == b
*/
function isAddressEqual(address a, address b) external pure returns (bool) {
return a == b;
}
/**
* @dev Returns `input` bytes as string.
*/
function bytesToString(bytes calldata input) external pure returns (string memory) {
return string(abi.encodePacked(input));
}
/**
* @dev Returns `input` bytes as uint256.
*/
function bytesToUint256(bytes calldata input) external pure returns (uint256) {
require(input.length == 32, "EnsoShortcutsHelpers: input length is not 32 bytes");
return uint256(bytes32(input));
}
/**
* @dev Returns `input` bytes as bytes32.
*/
function bytesToBytes32(bytes calldata input) external pure returns (bytes32) {
return bytes32(input);
}
/**
* @dev Returns `input` bytes32 as uint256.
*/
function bytes32ToUint256(bytes32 input) external pure returns (uint256) {
return uint256(input);
}
/**
* @dev Returns `input` bytes32 as address.
*/
function bytes32ToAddress(bytes32 input) external pure returns (address) {
return address(uint160(uint256(input)));
}
/**
* @dev Returns uint256 `value` as int256.
*/
function uint256ToInt256(uint256 value) public pure returns (int256) {
require(value <= uint256(type(int256).max), "Value does not fit in an int256");
return int256(value);
}
/**
* @dev Returns int256 `value` as uint256.
*/
function int256ToUint256(int256 value) public pure returns (uint256) {
require(value >= 0, "Value must be positive");
return uint256(value);
}
}