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| Transfer Ownersh... | 13754620 | 73 days ago | IN | 0 ETH | 0.00000003 |
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This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.
Contract Name:
fBOMB
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 10000 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: Fantom Bomb, LZ ERC 20 for BOMB/wBOMB on destination chains
* @author Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "./Max-20-UUPS-LZ.sol";
import "./lib/Safe20.sol";
import "./lib/20.sol";
import "./lib/Lists.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
contract fBOMB is Initializable
, Max20ImplementationUUPSLZ
, UUPSUpgradeable {
using Lib20 for Lib20.Token;
using Lists for Lists.Access;
using Safe20 for IERC20;
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
function initialize(
string memory _name
, string memory _symbol
, address _admin
, address _dev
, address _owner
) initializer
public {
__Max20_init(_name, _symbol, 18, _admin, _dev, _owner);
__UUPSUpgradeable_init();
}
function _authorizeUpgrade(address newImplementation)
internal
onlyRole(ADMIN)
override
{}
function addExempt(
address newAddress
) external
virtual
onlyDev() {
taxExempt.add(newAddress);
}
function removeExempt(
address newAddress
) external
virtual
onlyDev() {
taxExempt.remove(newAddress);
}
function addExemptBatch(
address[] memory newAddresses
) external
virtual
onlyDev() {
uint len = newAddresses.length;
for (uint i = 0; i < len;) {
taxExempt.add(newAddresses[i]);
unchecked { ++i; }
}
}
function removeExemptBatch(
address[] memory newAddresses
) external
virtual
onlyDev() {
uint len = newAddresses.length;
for (uint i = 0; i < len;) {
taxExempt.remove(newAddresses[i]);
unchecked { ++i; }
}
}
/// @dev transfer
/// @return success
/// @notice Transfers _value amount of tokens to address _to, and MUST fire the Transfer event.
/// The function SHOULD throw if the message caller’s account balance does not have enough
/// tokens to spend.
/// @notice Note Transfers of 0 values MUST be treated as normal transfers and fire the Transfer
/// event.
function transfer(
address _to
, uint256 _value
) external
virtual
override
returns (bool success) {
uint256 balanceUser = this.balanceOf(msg.sender);
if (_to == address(0)) {
revert MaxSplaining({
reason: "Max20: to address(0)"
});
} else if (_value > balanceUser) {
revert MaxSplaining({
reason: "Max20: issuficient balance"
});
} else {
if (taxExempt.onList(_to) || taxExempt.onList(msg.sender)) {
success = token20.doTransfer(msg.sender, _to, _value);
emit Transfer(msg.sender, _to, _value);
} else {
uint256 transValue = _value * 99 / 100;
success = token20.doTransfer(msg.sender, _to, transValue);
emit Transfer(msg.sender, _to, transValue);
token20.burn(msg.sender, _value - transValue);
emit Transfer(msg.sender, address(0), _value - transValue);
}
}
}
/// @dev transferFrom
/// @return success
/// @notice The transferFrom method is used for a withdraw workflow, allowing contracts to transfer
/// tokens on your behalf. This can be used for example to allow a contract to transfer
/// tokens on your behalf and/or to charge fees in sub-currencies. The function SHOULD
/// throw unless the _from account has deliberately authorized the sender of the message
/// via some mechanism.
/// @notice Note Transfers of 0 values MUST be treated as normal transfers and fire the Transfer
/// event.
function transferFrom(
address _from
, address _to
, uint256 _value
) external
virtual
override
returns (bool success) {
uint256 balanceUser = this.balanceOf(_from);
uint256 approveBal = this.allowance(_from, msg.sender);
if (_from == address(0) || _to == address(0)) {
revert MaxSplaining({
reason: "Max20: to/from address(0)"
});
} else if (_value > balanceUser) {
revert MaxSplaining({
reason: "Max20: issuficient balance"
});
} else if (_value > approveBal) {
revert MaxSplaining({
reason: "Max20: not approved to spend _value"
});
} else {
if (taxExempt.onList(_to) || taxExempt.onList(_from)) {
success = token20.doTransfer(_from, _to, _value);
emit Transfer(_from, _to, _value);
token20.setApprove(_from, msg.sender, approveBal - _value);
emit Approval(_from, msg.sender, approveBal - _value);
} else {
uint256 transValue = _value * 99 / 100;
success = token20.doTransfer(_from, _to, transValue);
emit Transfer(_from, _to, transValue);
token20.burn(_from, _value - transValue);
emit Transfer(_from, address(0), _value - transValue);
token20.setApprove(_from, msg.sender, approveBal - _value);
emit Approval(_from, msg.sender, approveBal - _value);
}
}
}
/// @dev burn
/// @return success
/// @notice Burns _value amount of tokens to address _to, and MUST fire the Transfer event.
/// The function SHOULD throw if the message caller’s account balance does not have enough
/// tokens to burn.
/// @notice Note burn of 0 values MUST be treated as normal transfers and fire the Transfer
/// event.
function burn(
uint256 _value
) external
virtual
returns (bool success) {
uint256 balanceUser = this.balanceOf(msg.sender);
if (_value > balanceUser) {
revert MaxSplaining({
reason: "Max20: issuficient balance"
});
} else {
token20.burn(msg.sender, _value);
success = true;
emit Transfer(msg.sender, address(0), _value);
}
}
function setTres(
address newAddress
) external
virtual
onlyDev() {
treasury = newAddress;
}
// @notice This function transfers the ft from your address on the
// source chain to the same address on the destination chain
// @param _chainId: the uint16 of desination chain (see LZ docs)
// @param _amount: amount to be sent
function traverseChains(
uint16 _chainId
, uint256 _amount
) public
virtual
payable {
uint256 userBal = token20.getBalanceOf(msg.sender);
if (_amount > userBal) {
revert Unauthorized();
}
if (trustedRemoteLookup[_chainId].length == 0) {
revert MaxSplaining({
reason: "Token: TR not set"
});
}
// set the amout to burn and send to treasury
uint256 onePer = _amount / 100;
uint256 toTraverse;
// burn FT, eliminating it from circulation on src chain
if (taxExempt.onList(msg.sender)) {
toTraverse = _amount - onePer;
token20.doTransfer(msg.sender, treasury, onePer);
emit Transfer(msg.sender, treasury, onePer);
token20.burn(msg.sender, toTraverse);
emit Transfer(msg.sender, address(0), toTraverse);
} else {
toTraverse = _amount - (2 * onePer);
uint256 toBurn = _amount - onePer;
token20.doTransfer(msg.sender, treasury, onePer);
emit Transfer(msg.sender, treasury, onePer);
token20.burn(msg.sender, toBurn);
emit Transfer(msg.sender, address(0), toBurn);
}
// abi.encode() the payload with the values to send
bytes memory payload = abi.encode(
msg.sender
, toTraverse);
// encode adapterParams to specify more gas for the destination
uint16 version = 1;
bytes memory adapterParams = abi.encodePacked(
version
, gasForDestinationLzReceive);
// get the fees we need to pay to LayerZero + Relayer to cover message delivery
// you will be refunded for extra gas paid
(uint messageFee, ) = endpoint.estimateFees(
_chainId
, address(this)
, payload
, false
, adapterParams);
// revert this transaction if the fees are not met
if (messageFee > msg.value) {
revert MaxSplaining({
reason: "Token: message fee low"
});
}
// send the transaction to the endpoint
endpoint.send{value: msg.value}(
_chainId, // destination chainId
trustedRemoteLookup[_chainId], // destination address of nft contract
payload, // abi.encoded()'ed bytes
payable(msg.sender), // refund address
address(0x0), // 'zroPaymentAddress' unused for this
adapterParams // txParameters
);
}
// @notice just in case this fixed variable limits us from future integrations
// @param newVal: new value for gas amount
function setGasForDestinationLzReceive(
uint newVal
) external onlyDev() {
gasForDestinationLzReceive = newVal;
}
// @notice internal function to mint FT from migration
// @param _srcChainId - the source endpoint identifier
// @param _srcAddress - the source sending contract address from the source chain
// @param _nonce - the ordered message nonce
// @param _payload - the signed payload is the UA bytes has encoded to be sent
function _LzReceive(
uint16 _srcChainId
, bytes memory _srcAddress
, uint64 _nonce
, bytes memory _payload
) override
internal {
// decode
(address toAddr, uint256 amount) = abi.decode(_payload, (address, uint256));
// mint the tokens back into existence on destination chain
token20.mint(toAddr, amount);
emit Transfer(address(0), toAddr, amount);
}
// @notice will return gas value for LZ
// @return: uint for gas value
function currentLZGas()
external
view
returns (uint256) {
return gasForDestinationLzReceive;
}
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: [Not an EIP]: MaxFlow's 173/Dev/Roles Interface
* @author: Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice Interface for MaxAccess
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "./IMAX173.sol";
import "./IMAXDEV.sol";
import "./IRoles.sol";
interface MaxAccess is IMAX173
, IMAXDEV
, IRoles {
///@dev this just imports all 3 and pushes to Implementation
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: [Not an EIP]: Contract Roles Standard
* @author: Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice Interface for MaxAccess version of Roles
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "../../eip/165/IERC165.sol";
interface IRoles is IERC165 {
/// @dev Returns `true` if `account` has been granted `role`.
/// @param role: Bytes4 of a role
/// @param account: Address to check
/// @return bool true/false if account has role
function hasRole(
bytes4 role
, address account
) external
view
returns (bool);
/// @dev Returns the admin role that controls a role
/// @param role: Role to check
/// @return admin role
function getRoleAdmin(
bytes4 role
) external
view
returns (bytes4);
/// @dev Grants `role` to `account`
/// @param role: Bytes4 of a role
/// @param account: account to give role to
function grantRole(
bytes4 role
, address account
) external;
/// @dev Revokes `role` from `account`
/// @param role: Bytes4 of a role
/// @param account: account to revoke role from
function revokeRole(
bytes4 role
, address account
) external;
/// @dev Renounces `role` from `account`
/// @param role: Bytes4 of a role
function renounceRole(
bytes4 role
) external;
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: [Not an EIP]: Contract Developer Standard
* @author: Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice Interface for onlyDev() role
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "../../eip/165/IERC165.sol";
interface IMAXDEV is IERC165 {
/// @dev Classic "EIP-173" but for onlyDev()
/// @return Developer of contract
function developer()
external
view
returns (address);
/// @dev This renounces your role as onlyDev()
function renounceDeveloper()
external;
/// @dev Classic "EIP-173" but for onlyDev()
/// @param newDeveloper: addres of new pending Developer role
function transferDeveloper(
address newDeveloper
) external;
/// @dev This accepts the push-pull method of onlyDev()
function acceptDeveloper()
external;
/// @dev This declines the push-pull method of onlyDev()
function declineDeveloper()
external;
/// @dev This starts the push-pull method of onlyDev()
/// @param newDeveloper: addres of new pending developer role
function pushDeveloper(
address newDeveloper
) external;
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: EIP-173: Contract Ownership Standard, MaxFlowO2's extension
* @author: Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice Interface for enhancing EIP-173
* @custom:change-log UUPS Upgradable
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "../../eip/173/IERC173.sol";
interface IMAX173 is IERC173 {
/// @dev This is the classic "EIP-173" method of renouncing onlyOwner()
function renounceOwnership()
external;
/// @dev This accepts the push-pull method of onlyOwner()
function acceptOwnership()
external;
/// @dev This declines the push-pull method of onlyOwner()
function declineOwnership()
external;
/// @dev This starts the push-pull method of onlyOwner()
/// @param newOwner: addres of new pending owner role
function pushOwnership(
address newOwner
) external;
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: ILayerZeroUserApplicationConfig.sol
* @author: LayerZero
* @notice Interface for LayerZeroUserApplicationConfig
* OG Source: https://etherscan.io/address/0xa74ae2c6fca0cedbaef30a8ceef834b247186bcf#code
*/
// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;
interface ILayerZeroUserApplicationConfig {
// @notice set the configuration of the LayerZero messaging library of the specified version
// @param _version - messaging library version
// @param _chainId - the chainId for the pending config change
// @param _configType - type of configuration. every messaging library has its own convention.
// @param _config - configuration in the bytes. can encode arbitrary content.
function setConfig(
uint16 _version
, uint16 _chainId
, uint _configType
, bytes calldata _config
) external;
// @notice set the send() LayerZero messaging library version to _version
// @param _version - new messaging library version
function setSendVersion(
uint16 _version
) external;
// @notice set the lzReceive() LayerZero messaging library version to _version
// @param _version - new messaging library version
function setReceiveVersion(
uint16 _version
) external;
// @notice Only when the UA needs to resume the message flow in blocking mode and clear the stored payload
// @param _srcChainId - the chainId of the source chain
// @param _srcAddress - the contract address of the source contract at the source chain
function forceResumeReceive(
uint16 _srcChainId
, bytes calldata _srcAddress
) external;
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: ILayerZeroReceiver.sol
* @author: LayerZero
* @notice Interface for LayerZeroReceiver
* OG Source: https://etherscan.io/address/0xa74ae2c6fca0cedbaef30a8ceef834b247186bcf#code
*/
// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;
interface ILayerZeroReceiver {
// @notice LayerZero endpoint will invoke this function to deliver the message on the destination
// @param _srcChainId - the source endpoint identifier
// @param _srcAddress - the source sending contract address from the source chain
// @param _nonce - the ordered message nonce
// @param _payload - the signed payload is the UA bytes has encoded to be sent
function lzReceive(
uint16 _srcChainId
, bytes calldata _srcAddress
, uint64 _nonce
, bytes calldata _payload
) external;
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: ILayerZeroEndpoint.sol
* @author: LayerZero
* @notice Interface for LayerZeroEndpoint
* OG Source: https://etherscan.io/address/0xa74ae2c6fca0cedbaef30a8ceef834b247186bcf#code
*/
// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;
import "./ILayerZeroUserApplicationConfig.sol";
interface ILayerZeroEndpoint is ILayerZeroUserApplicationConfig {
// @notice send a LayerZero message to the specified address at a LayerZero endpoint.
// @param _dstChainId - the destination chain identifier
// @param _destination - the address on destination chain (in bytes). address length/format may vary by chains
// @param _payload - a custom bytes payload to send to the destination contract
// @param _refundAddress - if the source transaction is cheaper than the amount of value passed, refund the additional amount to this address
// @param _zroPaymentAddress - the address of the ZRO token holder who would pay for the transaction
// @param _adapterParams - parameters for custom functionality. e.g. receive airdropped native gas from the relayer on destination
function send(
uint16 _dstChainId
, bytes calldata _destination
, bytes calldata _payload
, address payable _refundAddress
, address _zroPaymentAddress
, bytes calldata _adapterParams
) external
payable;
// @notice used by the messaging library to publish verified payload
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source contract (as bytes) at the source chain
// @param _dstAddress - the address on destination chain
// @param _nonce - the unbound message ordering nonce
// @param _gasLimit - the gas limit for external contract execution
// @param _payload - verified payload to send to the destination contract
function receivePayload(
uint16 _srcChainId
, bytes calldata _srcAddress
, address _dstAddress
, uint64 _nonce
, uint _gasLimit
, bytes calldata _payload
) external;
// @notice get the inboundNonce of a receiver from a source chain which could be EVM or non-EVM chain
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source chain contract address
function getInboundNonce(
uint16 _srcChainId
, bytes calldata _srcAddress
) external
view
returns (uint64);
// @notice get the outboundNonce from this source chain which, consequently, is always an EVM
// @param _srcAddress - the source chain contract address
function getOutboundNonce(
uint16 _dstChainId
, address _srcAddress
) external
view
returns (uint64);
// @notice gets a quote in source native gas, for the amount that send() requires to pay for message delivery
// @param _dstChainId - the destination chain identifier
// @param _userApplication - the user app address on this EVM chain
// @param _payload - the custom message to send over LayerZero
// @param _payInZRO - if false, user app pays the protocol fee in native token
// @param _adapterParam - parameters for the adapter service, e.g. send some dust native token to dstChain
function estimateFees(
uint16 _dstChainId
, address _userApplication
, bytes calldata _payload
, bool _payInZRO
, bytes calldata _adapterParam
) external
view
returns (
uint nativeFee
, uint zroFee);
// @notice get this Endpoint's immutable source identifier
function getChainId()
external
view
returns (uint16);
// @notice the interface to retry failed message on this Endpoint destination
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source chain contract address
// @param _payload - the payload to be retried
function retryPayload(
uint16 _srcChainId
, bytes calldata _srcAddress
, bytes calldata _payload
) external;
// @notice query if any STORED payload (message blocking) at the endpoint.
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source chain contract address
function hasStoredPayload(
uint16 _srcChainId
, bytes calldata _srcAddress
) external
view
returns (bool);
// @notice query if the _libraryAddress is valid for sending msgs.
// @param _userApplication - the user app address on this EVM chain
function getSendLibraryAddress(
address _userApplication
) external
view
returns (address);
// @notice query if the _libraryAddress is valid for receiving msgs.
// @param _userApplication - the user app address on this EVM chain
function getReceiveLibraryAddress(
address _userApplication
) external
view
returns (address);
// @notice query if the non-reentrancy guard for send() is on
// @return true if the guard is on. false otherwise
function isSendingPayload()
external
view
returns (bool);
// @notice query if the non-reentrancy guard for receive() is on
// @return true if the guard is on. false otherwise
function isReceivingPayload()
external
view
returns (bool);
// @notice get the configuration of the LayerZero messaging library of the specified version
// @param _version - messaging library version
// @param _chainId - the chainId for the pending config change
// @param _userApplication - the contract address of the user application
// @param _configType - type of configuration. every messaging library has its own convention.
function getConfig(
uint16 _version
, uint16 _chainId
, address _userApplication
, uint _configType
) external
view
returns (bytes memory);
// @notice get the send() LayerZero messaging library version
// @param _userApplication - the contract address of the user application
function getSendVersion(
address _userApplication
) external
view
returns (uint16);
// @notice get the lzReceive() LayerZero messaging library version
// @param _userApplication - the contract address of the user application
function getReceiveVersion(
address _userApplication
) external
view
returns (uint16);
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: [Not an EIP] Safe ERC 20 Library
* @author: Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice Library makes use of bool success on transfer, transferFrom and approve of EIP 20
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >= 0.8.0 < 0.9.0;
import "../eip/20/IERC20.sol";
library Safe20 {
error MaxSplaining(string reason);
function safeTransfer(
IERC20 token
, address to
, uint256 amount
) internal {
if (!token.transfer(to, amount)) {
revert MaxSplaining({
reason: "Safe20: token.transfer failed"
});
}
}
function safeTransferFrom(
IERC20 token
, address from
, address to
, uint256 amount
) internal {
if (!token.transferFrom(from, to, amount)) {
revert MaxSplaining({
reason: "Safe20: token.transferFrom failed"
});
}
}
function safeApprove(
IERC20 token
, address spender
, uint256 amount
) internal {
if (!token.approve(spender, amount)) {
revert MaxSplaining({
reason: "Safe20: token.approve failed"
});
}
}
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: Roles.sol
* @author: Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice Library for MaxAcess.sol
* @custom:error-code Roles:1 User has role already
* @custom:error-code Roles:2 User does not have role to revoke
* @custom:change-log custom errors added above
* @custom:change-log cleaned up variables
* @custom:change-log internal -> internal/internal
*
* Include with 'using Roles for Roles.Role;'
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
library Roles {
bytes4 constant internal DEVS = 0xca4b208b;
bytes4 constant internal OWNERS = 0x8da5cb5b;
bytes4 constant internal ADMIN = 0xf851a440;
struct Role {
mapping(address => mapping(bytes4 => bool)) bearer;
address owner;
address developer;
address admin;
}
event RoleChanged(bytes4 _role, address _user, bool _status);
event AdminTransferred(address indexed previousAdmin, address indexed newAdmin);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
event DeveloperTransferred(address indexed previousDeveloper, address indexed newDeveloper);
error Unauthorized();
error MaxSplaining(string reason);
function add(
Role storage role
, bytes4 userRole
, address account
) internal {
if (account == address(0)) {
revert Unauthorized();
} else if (has(role, userRole, account)) {
revert MaxSplaining({
reason: "Roles:1"
});
}
role.bearer[account][userRole] = true;
emit RoleChanged(userRole, account, true);
}
function remove(
Role storage role
, bytes4 userRole
, address account
) internal {
if (account == address(0)) {
revert Unauthorized();
} else if (!has(role, userRole, account)) {
revert MaxSplaining({
reason: "Roles:2"
});
}
role.bearer[account][userRole] = false;
emit RoleChanged(userRole, account, false);
}
function has(
Role storage role
, bytes4 userRole
, address account
) internal
view
returns (bool) {
if (account == address(0)) {
revert Unauthorized();
}
return role.bearer[account][userRole];
}
function setAdmin(
Role storage role
, address account
) internal {
if (has(role, ADMIN, account)) {
address old = role.admin;
role.admin = account;
emit AdminTransferred(old, role.admin);
} else if (account == address(0)) {
address old = role.admin;
role.admin = account;
emit AdminTransferred(old, role.admin);
} else {
revert Unauthorized();
}
}
function setDeveloper(
Role storage role
, address account
) internal {
if (has(role, DEVS, account)) {
address old = role.developer;
role.developer = account;
emit DeveloperTransferred(old, role.developer);
} else if (account == address(0)) {
address old = role.admin;
role.admin = account;
emit AdminTransferred(old, role.admin);
} else {
revert Unauthorized();
}
}
function setOwner(
Role storage role
, address account
) internal {
if (has(role, OWNERS, account)) {
address old = role.owner;
role.owner = account;
emit OwnershipTransferred(old, role.owner);
} else if (account == address(0)) {
address old = role.admin;
role.admin = account;
emit AdminTransferred(old, role.admin);
} else {
revert Unauthorized();
}
}
function getAdmin(
Role storage role
) internal
view
returns (address) {
return role.admin;
}
function getDeveloper(
Role storage role
) internal
view
returns (address) {
return role.developer;
}
function getOwner(
Role storage role
) internal
view
returns (address) {
return role.owner;
}
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: [Not an EIP]: Access lists
* @author: @MaxFlowO2 on bird app/GitHub
* @notice Formerly whitelists, now allowlist, or whatever it's called.
* @custom:change-log removed end variable/functions (un-needed)
* @custom:change-log variables renamed from lib whitelist
* @custom:change-log internal -> internal
* @custom:error-code Lists:1 "(user) is already whitelisted."
* @custom:error-code Lists:2 "(user) is not whitelisted."
* @custom:error-code Lists:3 "Whitelist already enabled."
* @custom:error-code Lists:4 "Whitelist already disabled."
* @custom:change-log added custom error codes
* @custom:change-log removed import "./Strings.sol"; (un-needed)
*
* Include with 'using Lists for Lists.Access;'
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "./CountersV2.sol";
library Lists {
using CountersV2 for CountersV2.Counter;
event ListChanged(bool _old, bool _new, address _address);
event ListStatus(bool _old, bool _new);
error MaxSplaining(string reason);
struct Access {
bool _status;
CountersV2.Counter added;
CountersV2.Counter removed;
mapping(address => bool) allowed;
}
function add(
Access storage list
, address user
) internal {
if (list.allowed[user]) {
revert MaxSplaining({
reason : "Lists:1"
});
}
// since now all previous values are false no need for another variable
// and add them to the list!
list.allowed[user] = true;
// increment counter
list.added.increment();
// emit event
emit ListChanged(false, list.allowed[user], user);
}
function remove(
Access storage list
, address user
) internal {
if (!list.allowed[user]) {
revert MaxSplaining({
reason : "Lists:2"
});
}
// since now all previous values are true no need for another variable
// and remove them from the list!
list.allowed[user] = false;
// increment counter
list.removed.increment();
// emit event
emit ListChanged(true, list.allowed[user], user);
}
function enable(
Access storage list
) internal {
if (list._status) {
revert MaxSplaining({
reason : "Lists:3"
});
}
list._status = true;
emit ListStatus(false, list._status);
}
function disable(
Access storage list
) internal {
if (!list._status) {
revert MaxSplaining({
reason : "Lists:4"
});
}
list._status = false;
emit ListStatus(true, list._status);
}
function status(
Access storage list
) internal
view
returns (bool) {
return list._status;
}
function totalAdded(
Access storage list
) internal
view
returns (uint) {
return list.added.current();
}
function totalRemoved(
Access storage list
) internal
view
returns (uint) {
return list.removed.current();
}
function onList(
Access storage list
, address user
) internal
view
returns (bool) {
return list.allowed[user];
}
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: CountersV2.sol
* @author Matt Condon (@shrugs)
* @notice Provides counters that can only be incremented, decremented, reset or set.
* This can be used e.g. to track the number of elements in a mapping, issuing ERC721 ids
* or counting request ids.
* @custom:change-log MIT -> Apache-2.0
* @custom:change-log Edited for more NFT functionality added .set(uint)
* @custom:change-log added event CounterNumberChangedTo(uint _number).
* @custom:change-log added error MaxSplaining(string reason).
* @custom:change-log internal -> internal functions
* @custom:error-code CountersV2:1 "No negatives in uints" - overflow protection
*
* Include with `using CountersV2 for CountersV2.Counter;`
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
library CountersV2 {
struct Counter {
uint256 value;
}
event CounterNumberChangedTo(uint _number);
error MaxSplaining(string reason);
function current(
Counter storage counter
) internal
view
returns (uint256) {
return counter.value;
}
function increment(
Counter storage counter
) internal {
unchecked {
++counter.value;
}
}
function decrement(
Counter storage counter
) internal {
if (counter.value == 0) {
revert MaxSplaining({
reason : "CountersV2:1"
});
}
unchecked {
--counter.value;
}
}
function reset(
Counter storage counter
) internal {
counter.value = 0;
emit CounterNumberChangedTo(counter.value);
}
function set(
Counter storage counter
, uint number
) internal {
counter.value = number;
emit CounterNumberChangedTo(counter.value);
}
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: Library 20
* @author: Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice Library for EIP 20
* @custom:change-log Custom errors added above
*
* Include with 'using Lib20 for Lib20.Token;'
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
library Lib20 {
struct Token {
mapping(address => uint256) balances;
mapping(address => mapping(address => uint256)) allowances;
uint256 totalSupply;
uint8 decimals;
string name;
string symbol;
}
error MaxSplaining(string reason);
function setName(
Token storage token
, string memory newName
) internal {
token.name = newName;
}
function getName(
Token storage token
) internal
view
returns (string memory) {
return token.name;
}
function setSymbol(
Token storage token
, string memory newSymbol
) internal {
token.symbol = newSymbol;
}
function getSymbol(
Token storage token
) internal
view
returns (string memory) {
return token.symbol;
}
function setDecimals(
Token storage token
, uint8 newDecimals
) internal {
token.decimals = newDecimals;
}
function getDecimals(
Token storage token
) internal
view
returns (uint8) {
return token.decimals;
}
function getTotalSupply(
Token storage token
) internal
view
returns (uint256) {
return token.totalSupply;
}
function getBalanceOf(
Token storage token
, address owner
) internal
view
returns (uint256) {
return token.balances[owner];
}
function doTransfer(
Token storage token
, address from
, address to
, uint256 value
) internal
returns (bool success) {
uint256 fromBal = getBalanceOf(token, from);
if (value > fromBal) {
revert MaxSplaining({
reason: "Max20:1"
});
}
unchecked {
token.balances[from] -= value;
token.balances[to] += value;
}
return true;
}
function getAllowance(
Token storage token
, address owner
, address spender
) internal
view
returns (uint256) {
return token.allowances[owner][spender];
}
function setApprove(
Token storage token
, address owner
, address spender
, uint256 amount
) internal
returns (bool) {
token.allowances[owner][spender] = amount;
return true;
}
function mint(
Token storage token
, address account
, uint256 amount
) internal {
if (account == address(0)) {
revert MaxSplaining({
reason: "Max20:2"
});
}
token.totalSupply += amount;
unchecked {
token.balances[account] += amount;
}
}
function burn(
Token storage token
, address account
, uint256 amount
) internal {
uint256 accountBal = getBalanceOf(token, account);
if (amount > accountBal) {
revert MaxSplaining({
reason: "Max20:1"
});
}
unchecked {
token.balances[account] = accountBal - amount;
token.totalSupply -= amount;
}
}
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: [Not an EIP]: MaxErrors, so I can import errors, anywhere minus libraries
* @author: Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice Does not have an ERC165 return since no external/public functions
* @custom:change-log abstract contract -> interface
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
interface MaxErrors {
/// @dev this is Unauthorized(), basically a catch all, zero description
/// @notice 0x82b42900 bytes4 of this
error Unauthorized();
/// @dev this is MaxSplaining(), giving you a reason, aka require(param, "reason")
/// @param reason: Use the "Contract name: error"
/// @notice 0x0661b792 bytes4 of this
error MaxSplaining(
string reason
);
/// @dev this is TooSoonJunior(), using times
/// @param yourTime: should almost always be block.timestamp
/// @param hitTime: the time you should have started
/// @notice 0xf3f82ac5 bytes4 of this
error TooSoonJunior(
uint yourTime
, uint hitTime
);
/// @dev this is TooLateBoomer(), using times
/// @param yourTime: should almost always be block.timestamp
/// @param hitTime: the time you should have ended
/// @notice 0x43c540ef bytes4 of this
error TooLateBoomer(
uint yourTime
, uint hitTime
);
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: EIP-20: Token Standard, extension
* @author: Unknown
* @notice n/a
* @custom:change-log backwards compatability to EIP 165 added
* @custom:change-log MIT -> Apache-2.0
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright and related rights waived via CC0. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "../165/IERC165.sol";
interface IERC20Burn is IERC165 {
/// @dev to burn ERC20 tokens
/// @param amount uint256 amount of tokens to burn
function burn(
uint256 amount
) external;
function deposit(uint256 amount) external returns (bool);
function withdraw(uint256 amount) external returns (bool);
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: EIP-20: Token Standard
* @author: Fabian Vogelsteller, Vitalik Buterin
* @notice The following standard allows for the implementation of a standard API for tokens within
* smart contracts. This standard provides basic functionality to transfer tokens, as well
* as allow tokens to be approved so they can be spent by another on-chain third party.
* @custom:source https://eips.ethereum.org/EIPS/eip-20
* @custom:change-log external -> external, string -> string memory (0.8.x)
* @custom:change-log readability enhanced
* @custom:change-log backwards compatability to EIP 165 added
* @custom:change-log MIT -> Apache-2.0
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright and related rights waived via CC0. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "../165/IERC165.sol";
interface IERC20 is IERC165 {
/// @dev Transfer Event
/// @notice MUST trigger when tokens are transferred, including zero value transfers.
/// @notice A token contract which creates new tokens SHOULD trigger a Transfer event
/// with the _from address set to 0x0 when tokens are created.
event Transfer(address indexed _from, address indexed _to, uint256 _value);
/// @dev Approval Event
/// @notice MUST trigger on any successful call to approve(address _spender, uint256 _value).
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
/// @dev OPTIONAL - This method can be used to improve usability, but interfaces and other
/// contracts MUST NOT expect these values to be present.
/// @return string memory returns the name of the token - e.g. "MyToken".
function name()
external
view
returns (string memory);
/// @dev OPTIONAL - This method can be used to improve usability, but interfaces and other
/// contracts MUST NOT expect these values to be present.
/// @return string memory returns the symbol of the token. E.g. “HIX”.
function symbol()
external
view
returns (string memory);
/// @dev OPTIONAL - This method can be used to improve usability, but interfaces and other
/// contracts MUST NOT expect these values to be present.
/// @return uint8 returns the number of decimals the token uses - e.g. 8, means to divide the
/// token amount by 100000000 to get its user representation.
function decimals()
external
view
returns (uint8);
/// @dev totalSupply
/// @return uint256 returns the total token supply.
function totalSupply()
external
view
returns (uint256);
/// @dev balanceOf
/// @return balance returns the account balance of another account with address _owner.
function balanceOf(
address _owner
) external
view
returns (uint256 balance);
/// @dev transfer
/// @return success
/// @notice Transfers _value amount of tokens to address _to, and MUST fire the Transfer event.
/// The function SHOULD throw if the message caller’s account balance does not have enough
/// tokens to spend.
/// @notice Note Transfers of 0 values MUST be treated as normal transfers and fire the Transfer
/// event.
function transfer(
address _to
, uint256 _value
) external
returns (bool success);
/// @dev transferFrom
/// @return success
/// @notice The transferFrom method is used for a withdraw workflow, allowing contracts to transfer
/// tokens on your behalf. This can be used for example to allow a contract to transfer
/// tokens on your behalf and/or to charge fees in sub-currencies. The function SHOULD
/// throw unless the _from account has deliberately authorized the sender of the message
/// via some mechanism.
/// @notice Note Transfers of 0 values MUST be treated as normal transfers and fire the Transfer
/// event.
function transferFrom(
address _from
, address _to
, uint256 _value
) external
returns (bool success);
/// @dev approve
/// @return success
/// @notice Allows _spender to withdraw from your account multiple times, up to the _value amount.
/// If this function is called again it overwrites the current allowance with _value.
/// @notice To prevent attack vectors like the one described here and discussed here, clients
/// SHOULD make sure to create user interfaces in such a way that they set the allowance
/// first to 0 before setting it to another value for the same spender. THOUGH The contract
/// itself shouldn’t enforce it, to allow backwards compatibility with contracts deployed
/// before
function approve(
address _spender
, uint256 _value
) external
returns (bool success);
/// @dev allowance
/// @return remaining uint256 of allowance remaining
/// @notice Returns the amount which _spender is still allowed to withdraw from _owner.
function allowance(
address _owner
, address _spender
) external
view
returns (uint256 remaining);
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: EIP-173: Contract Ownership Standard
* @author: Nick Mudge, Dan Finlay
* @notice This specification defines standard functions for owning or controlling a contract.
* the ERC-165 identifier for this interface is 0x7f5828d0
* @custom:URI https://eips.ethereum.org/EIPS/eip-173
* @custom:change-log MIT -> Apache-2.0
* @custom:change-log readability modification
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright and related rights waived via CC0. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "../../eip/165/IERC165.sol";
interface IERC173 is IERC165 {
/// @dev This emits when ownership of a contract changes.
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/// @notice Get the address of the owner
/// @return The address of the owner.
function owner()
view
external
returns(address);
/// @notice Set the address of the new owner of the contract
/// @dev Set _newOwner to address(0) to renounce any ownership.
/// @param _newOwner The address of the new owner of the contract
function transferOwnership(
address _newOwner
) external;
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title: EIP-165: Standard Interface Detection
* @author: Christian Reitwießner, Nick Johnson, Fabian Vogelsteller, Jordi Baylina, Konrad Feldmeier, William Entriken
* @notice Creates a standard method to publish and detect what interfaces a smart contract implements.
* @custom:source https://eips.ethereum.org/EIPS/eip-165
* @custom:change-log interface ERC165 -> interface IERC165
* @custom:change-log readability enhanced
* @custom:change-log MIT -> Apache-2.0
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright and related rights waived via CC0. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
interface IERC165 {
/// @notice Query if a contract implements an interface
/// @param interfaceID The interface identifier, as specified in ERC-165
/// @notice Interface identification is specified in ERC-165. This function
/// uses less than 30,000 gas.
/// @return `true` if the contract implements `interfaceID` and
/// `interfaceID` is not 0xffffffff, `false` otherwise
function supportsInterface(
bytes4 interfaceID
) external
view
returns (bool);
}/* +%%#- ##. =+. .+#%#+: *%%#: .**+- =+
* .%@@*#*: @@: *%- #%*= .*@@=. =%. .%@@*%* +@@=+=% .%##
* .%@@- -=+ *@% :@@- #@=# -@@* +@- :@@@: ==* -%%. *** #@=*
* %@@: -.* :. +@@-.#@# =@%#. :. -@* :@@@. -:# .%. *@# *@#*
* *%@- +++ +@#.-- .*%*. .#@@*@# %@@%*#@@: .@@=-. -%- #%@: +*- =*@* -@%=:
* @@% =## +@@#-..%%:%.-@@=-@@+ .. +@% #@#*+@: .*= @@% =#* -*. +#. %@#+*@
* @@# +@* #@# +@@. -+@@+#*@% =#: #@= :@@-.%# -=. : @@# .*@* =@= :*@:=@@-:@+
* -#%+@#- :@#@@+%++@*@*:=%+..%%#= *@ *@++##. =%@%@%%#- =#%+@#- :*+**+=: %%++%*
*
* @title Max-20-UUPS-LZ-Implementation
* @author Max Flow O2 -> @MaxFlowO2 on bird app/GitHub
* @notice
*/
// SPDX-License-Identifier: Apache-2.0
/******************************************************************************
* Copyright 2022 Max Flow O2 *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
******************************************************************************/
pragma solidity >=0.8.0 <0.9.0;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "./eip/20/IERC20.sol";
import "./eip/20/IERC20Burn.sol";
import "./lib/Safe20.sol";
import "./lib/20.sol";
import "./modules/access/MaxAccess.sol";
import "./lib/Roles.sol";
import "./lib/Lists.sol";
import "./lz/ILayerZeroReceiver.sol";
import "./lz/ILayerZeroEndpoint.sol";
import "./errors/MaxErrors.sol";
abstract contract Max20ImplementationUUPSLZ is Initializable
, MaxErrors
, MaxAccess
, ILayerZeroReceiver
, IERC20 {
//////////////////////////////////////
// Storage
//////////////////////////////////////
using Lib20 for Lib20.Token;
using Lists for Lists.Access;
using Roles for Roles.Role;
using Safe20 for IERC20;
Lib20.Token internal token20;
Roles.Role internal contractRoles;
Lists.Access internal taxExempt;
bytes4 constant internal DEVS = 0xca4b208b;
bytes4 constant internal PENDING_DEVS = 0xca4b208a; // DEVS - 1
bytes4 constant internal OWNERS = 0x8da5cb5b;
bytes4 constant internal PENDING_OWNERS = 0x8da5cb5a; // OWNERS - 1
bytes4 constant internal ADMIN = 0xf851a440;
address internal Token;
address internal WToken;
address internal treasury;
//////////////////////////////////////
// LayerZero Storage
//////////////////////////////////////
ILayerZeroEndpoint internal endpoint;
struct FailedMessages {
uint payloadLength;
bytes32 payloadHash;
}
mapping(uint16 => mapping(bytes => mapping(uint => FailedMessages))) public failedMessages;
mapping(uint16 => bytes) public trustedRemoteLookup;
uint256 internal gasForDestinationLzReceive;
event TrustedRemoteSet(uint16 _chainId, bytes _trustedRemote);
event EndpointSet(address indexed _endpoint);
event MessageFailed(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes _payload);
///////////////////////
// MAX-20: Modifiers
///////////////////////
modifier onlyRole(bytes4 role) {
if (contractRoles.has(role, msg.sender) || contractRoles.has(ADMIN, msg.sender)) {
_;
} else {
revert Unauthorized();
}
}
modifier onlyOwner() {
if (contractRoles.has(OWNERS, msg.sender)) {
_;
} else {
revert Unauthorized();
}
}
modifier onlyDev() {
if (contractRoles.has(DEVS, msg.sender)) {
_;
} else {
revert Unauthorized();
}
}
///////////////////////
/// MAX-20: Internals
///////////////////////
function __Max20_init(
string memory _name
, string memory _symbol
, uint8 _decimals
, address _admin
, address _dev
, address _owner
) internal
onlyInitializing() {
token20.setName(_name);
token20.setSymbol(_symbol);
token20.setDecimals(_decimals);
contractRoles.add(ADMIN, _admin);
contractRoles.setAdmin(_admin);
contractRoles.add(DEVS, _dev);
contractRoles.setDeveloper(_dev);
contractRoles.add(OWNERS, _owner);
contractRoles.setOwner(_owner);
}
//////////////////////////
// EIP-20: Token Standard
//////////////////////////
/// @dev OPTIONAL - This method can be used to improve usability, but interfaces and other
/// contracts MUST NOT expect these values to be present.
/// @return string memory returns the name of the token - e.g. "MyToken".
function name()
external
view
virtual
override
returns (string memory) {
return token20.getName();
}
/// @dev OPTIONAL - This method can be used to improve usability, but interfaces and other
/// contracts MUST NOT expect these values to be present.
/// @return string memory returns the symbol of the token. E.g. “HIX”.
function symbol()
external
view
virtual
override
returns (string memory) {
return token20.getSymbol();
}
/// @dev OPTIONAL - This method can be used to improve usability, but interfaces and other
/// contracts MUST NOT expect these values to be present.
/// @return uint8 returns the number of decimals the token uses - e.g. 8, means to divide the
/// token amount by 100000000 to get its user representation.
function decimals()
external
view
virtual
override
returns (uint8) {
return token20.getDecimals();
}
/// @dev totalSupply
/// @return uint256 returns the total token supply.
function totalSupply()
external
view
virtual
override
returns (uint256) {
return token20.getTotalSupply();
}
/// @dev balanceOf
/// @return balance returns the account balance of another account with address _owner.
function balanceOf(
address _owner
) external
view
virtual
override
returns (uint256 balance) {
balance = token20.getBalanceOf(_owner);
}
/// @dev transfer
/// @return success
/// @notice Transfers _value amount of tokens to address _to, and MUST fire the Transfer event.
/// The function SHOULD throw if the message caller’s account balance does not have enough
/// tokens to spend.
/// @notice Note Transfers of 0 values MUST be treated as normal transfers and fire the Transfer
/// event.
function transfer(
address _to
, uint256 _value
) external
virtual
override
returns (bool success) {
if (_to == address(0)) {
revert MaxSplaining({
reason: "Max20: to address(0)"
});
} else {
success = token20.doTransfer(msg.sender, _to, _value);
emit Transfer(msg.sender, _to, _value);
}
}
/// @dev transferFrom
/// @return success
/// @notice The transferFrom method is used for a withdraw workflow, allowing contracts to transfer
/// tokens on your behalf. This can be used for example to allow a contract to transfer
/// tokens on your behalf and/or to charge fees in sub-currencies. The function SHOULD
/// throw unless the _from account has deliberately authorized the sender of the message
/// via some mechanism.
/// @notice Note Transfers of 0 values MUST be treated as normal transfers and fire the Transfer
/// event.
function transferFrom(
address _from
, address _to
, uint256 _value
) external
virtual
override
returns (bool success) {
uint256 approveBal = this.allowance(_from, msg.sender);
if (_from == address(0) || _to == address(0)) {
revert MaxSplaining({
reason: "Max20: to/from address(0)"
});
} else if (approveBal >= _value) {
revert MaxSplaining({
reason: "Max20: not approved to spend _value"
});
} else {
success = token20.doTransfer(_from, _to, _value);
emit Transfer(_from, _to, _value);
}
}
/// @dev approve
/// @return success
/// @notice Allows _spender to withdraw from your account multiple times, up to the _value amount.
/// If this function is called again it overwrites the current allowance with _value.
/// @notice To prevent attack vectors like the one described here and discussed here, clients
/// SHOULD make sure to create user interfaces in such a way that they set the allowance
/// first to 0 before setting it to another value for the same spender. THOUGH The contract
/// itself shouldn’t enforce it, to allow backwards compatibility with contracts deployed
/// before
function approve(
address _spender
, uint256 _value
) external
virtual
override
returns (bool success) {
success = token20.setApprove(msg.sender, _spender, _value);
emit Approval(msg.sender, _spender, _value);
}
/// @dev allowance
/// @return remaining uint256 of allowance remaining
/// @notice Returns the amount which _spender is still allowed to withdraw from _owner.
function allowance(
address _owner
, address _spender
) external
view
virtual
override
returns (uint256 remaining) {
return token20.getAllowance(_owner, _spender);
}
///////////////////
/// LayerZero: NBR
///////////////////
// @notice LayerZero endpoint will invoke this function to deliver the message on the destination
// @param _srcChainId - the source endpoint identifier
// @param _srcAddress - the source sending contract address from the source chain
// @param _nonce - the ordered message nonce
// @param _payload - the signed payload is the UA bytes has encoded to be sent
function lzReceive(
uint16 _srcChainId
, bytes memory _srcAddress
, uint64 _nonce
, bytes memory _payload
) external
override {
if (msg.sender != address(endpoint)) {
revert MaxSplaining({
reason: "NBR:1"
});
}
if (
_srcAddress.length != trustedRemoteLookup[_srcChainId].length ||
keccak256(_srcAddress) != keccak256(trustedRemoteLookup[_srcChainId])
) {
revert MaxSplaining({
reason: "NBR:2"
});
}
// try-catch all errors/exceptions
// having failed messages does not block messages passing
try this.onLzReceive(_srcChainId, _srcAddress, _nonce, _payload) {
// do nothing
} catch {
// error or exception
failedMessages[_srcChainId][_srcAddress][_nonce] = FailedMessages(_payload.length, keccak256(_payload));
emit MessageFailed(_srcChainId, _srcAddress, _nonce, _payload);
}
}
// @notice this is the catch all above (should be an internal?)
// @param _srcChainId - the source endpoint identifier
// @param _srcAddress - the source sending contract address from the source chain
// @param _nonce - the ordered message nonce
// @param _payload - the signed payload is the UA bytes has encoded to be sent
function onLzReceive(
uint16 _srcChainId
, bytes memory _srcAddress
, uint64 _nonce
, bytes memory _payload
) public {
// only internal transaction
if (msg.sender != address(this)) {
revert MaxSplaining({
reason: "NBR:3"
});
}
// handle incoming message
_LzReceive( _srcChainId, _srcAddress, _nonce, _payload);
}
// @notice internal function to do something in the main contract
// @param _srcChainId - the source endpoint identifier
// @param _srcAddress - the source sending contract address from the source chain
// @param _nonce - the ordered message nonce
// @param _payload - the signed payload is the UA bytes has encoded to be sent
function _LzReceive(
uint16 _srcChainId
, bytes memory _srcAddress
, uint64 _nonce
, bytes memory _payload
) virtual
internal;
// @notice send a LayerZero message to the specified address at a LayerZero endpoint.
// @param _dstChainId - the destination chain identifier
// @param _destination - the address on destination chain (in bytes). address length/format may vary by chains
// @param _payload - a custom bytes payload to send to the destination contract
// @param _refundAddress - if the source transaction is cheaper than the amount of value passed, refund the additional amount to this address
// @param _zroPaymentAddress - the address of the ZRO token holder who would pay for the transaction
// @param _adapterParams - parameters for custom functionality. e.g. receive airdropped native gas from the relayer on destination
function _lzSend(
uint16 _dstChainId
, bytes memory _payload
, address payable _refundAddress
, address _zroPaymentAddress
, bytes memory _txParam
) internal {
endpoint.send{value: msg.value}(
_dstChainId
, trustedRemoteLookup[_dstChainId]
, _payload, _refundAddress
, _zroPaymentAddress
, _txParam);
}
// @notice this is to retry a failed message on LayerZero
// @param _srcChainId - the source chain identifier
// @param _srcAddress - the source chain contract address
// @param _nonce - the ordered message nonce
// @param _payload - the payload to be retried
function retryMessage(
uint16 _srcChainId
, bytes memory _srcAddress
, uint64 _nonce
, bytes calldata _payload
) external
payable {
// assert there is message to retry
FailedMessages storage failedMsg = failedMessages[_srcChainId][_srcAddress][_nonce];
if (failedMsg.payloadHash == bytes32(0)) {
revert MaxSplaining({
reason: "NBR:4"
});
}
if (
_payload.length != failedMsg.payloadLength ||
keccak256(_payload) != failedMsg.payloadHash
) {
revert MaxSplaining({
reason: "NBR:5"
});
}
// clear the stored message
failedMsg.payloadLength = 0;
failedMsg.payloadHash = bytes32(0);
// execute the message. revert if it fails again
this.onLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
}
// @notice this is to set all valid incoming messages
// @param _srcChainId - the source chain identifier
// @param _trustedRemote - the source chain contract address
function setTrustedRemote(
uint16 _chainId
, bytes calldata _trustedRemote
) external
onlyDev() {
trustedRemoteLookup[_chainId] = _trustedRemote;
emit TrustedRemoteSet(_chainId, _trustedRemote);
}
// @notice this is to set all valid incoming messages
// @param _srcChainId - the source chain identifier
// @param _trustedRemote - the source chain contract address
function setEndPoint(
address newEndpoint
) external
onlyDev() {
endpoint = ILayerZeroEndpoint(newEndpoint);
emit EndpointSet(newEndpoint);
}
/////////////////////////////////////////
/// EIP-173: Contract Ownership Standard
/////////////////////////////////////////
/// @notice Get the address of the owner
/// @return The address of the owner.
function owner()
view
external
returns(address) {
return contractRoles.getOwner();
}
/// @notice Set the address of the new owner of the contract
/// @dev Set _newOwner to address(0) to renounce any ownership.
/// @param _newOwner The address of the new owner of the contract
function transferOwnership(
address _newOwner
) external
onlyRole(OWNERS) {
contractRoles.add(OWNERS, _newOwner);
contractRoles.setOwner(_newOwner);
contractRoles.remove(OWNERS, msg.sender);
}
////////////////////////////////////////////////////////////////
/// EIP-173: Contract Ownership Standard, MaxFlowO2's extension
////////////////////////////////////////////////////////////////
/// @dev This is the classic "EIP-173" method of renouncing onlyOwner()
function renounceOwnership()
external
onlyRole(OWNERS) {
contractRoles.setOwner(address(0));
contractRoles.remove(OWNERS, msg.sender);
}
/// @dev This accepts the push-pull method of onlyOwner()
function acceptOwnership()
external
onlyRole(PENDING_OWNERS) {
contractRoles.add(OWNERS, msg.sender);
contractRoles.setOwner(msg.sender);
contractRoles.remove(PENDING_OWNERS, msg.sender);
}
/// @dev This declines the push-pull method of onlyOwner()
function declineOwnership()
external
onlyRole(PENDING_OWNERS) {
contractRoles.remove(PENDING_OWNERS, msg.sender);
}
/// @dev This starts the push-pull method of onlyOwner()
/// @param newOwner: addres of new pending owner role
function pushOwnership(
address newOwner
) external
onlyRole(OWNERS) {
contractRoles.add(PENDING_OWNERS, newOwner);
}
//////////////////////////////////////////////
/// [Not an EIP]: Contract Developer Standard
//////////////////////////////////////////////
/// @dev Classic "EIP-173" but for onlyDev()
/// @return Developer of contract
function developer()
external
view
returns (address) {
return contractRoles.getDeveloper();
}
/// @dev This renounces your role as onlyDev()
function renounceDeveloper()
external
onlyRole(DEVS) {
contractRoles.setDeveloper(address(0));
contractRoles.remove(DEVS, msg.sender);
}
/// @dev Classic "EIP-173" but for onlyDev()
/// @param newDeveloper: addres of new pending Developer role
function transferDeveloper(
address newDeveloper
) external
onlyRole(DEVS) {
contractRoles.add(DEVS, newDeveloper);
contractRoles.setDeveloper(newDeveloper);
contractRoles.remove(DEVS, msg.sender);
}
/// @dev This accepts the push-pull method of onlyDev()
function acceptDeveloper()
external
onlyRole(PENDING_DEVS) {
contractRoles.add(DEVS, msg.sender);
contractRoles.setDeveloper(msg.sender);
contractRoles.remove(PENDING_DEVS, msg.sender);
}
/// @dev This declines the push-pull method of onlyDev()
function declineDeveloper()
external
onlyRole(PENDING_DEVS) {
contractRoles.remove(PENDING_DEVS, msg.sender);
}
/// @dev This starts the push-pull method of onlyDev()
/// @param newDeveloper: addres of new pending developer role
function pushDeveloper(
address newDeveloper
) external
onlyRole(DEVS) {
contractRoles.add(PENDING_DEVS, newDeveloper);
}
//////////////////////////////////////////
/// [Not an EIP]: Contract Roles Standard
//////////////////////////////////////////
/// @dev Returns `true` if `account` has been granted `role`.
/// @param role: Bytes4 of a role
/// @param account: Address to check
/// @return bool true/false if account has role
function hasRole(
bytes4 role
, address account
) external
view
returns (bool) {
return contractRoles.has(role, account);
}
/// @dev Returns the admin role that controls a role
/// @param role: Role to check
/// @return admin role
function getRoleAdmin(
bytes4 role
) external
view
returns (bytes4) {
return ADMIN;
}
/// @dev Grants `role` to `account`
/// @param role: Bytes4 of a role
/// @param account: account to give role to
function grantRole(
bytes4 role
, address account
) external
onlyRole(role) {
if (role == PENDING_DEVS || role == PENDING_OWNERS) {
revert Unauthorized();
} else {
contractRoles.add(role, account);
}
}
/// @dev Revokes `role` from `account`
/// @param role: Bytes4 of a role
/// @param account: account to revoke role from
function revokeRole(
bytes4 role
, address account
) external
onlyRole(role) {
if (role == PENDING_DEVS || role == PENDING_OWNERS) {
if (account == msg.sender) {
contractRoles.remove(role, account);
} else {
revert Unauthorized();
}
} else {
contractRoles.remove(role, account);
}
}
/// @dev Renounces `role` from `account`
/// @param role: Bytes4 of a role
function renounceRole(
bytes4 role
) external
onlyRole(role) {
contractRoles.remove(role, msg.sender);
}
//////////////////////////////////////////
/// EIP-165: Standard Interface Detection
//////////////////////////////////////////
/// @dev Query if a contract implements an interface
/// @param interfaceID The interface identifier, as specified in ERC-165
/// @notice Interface identification is specified in ERC-165. This function
/// uses less than 30,000 gas.
/// @return `true` if the contract implements `interfaceID` and
/// `interfaceID` is not 0xffffffff, `false` otherwise
function supportsInterface(
bytes4 interfaceID
) external
view
virtual
override
returns (bool) {
return (
interfaceID == type(IERC173).interfaceId ||
interfaceID == type(IMAX173).interfaceId ||
interfaceID == type(IMAXDEV).interfaceId ||
interfaceID == type(IRoles).interfaceId ||
interfaceID == type(IERC20).interfaceId
);
}
uint256 internal bpsDeposit;
uint256[34] private __gap;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlotUpgradeable {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
}// 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 AddressUpgradeable {
/**
* @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 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 (last updated v4.8.0) (proxy/utils/UUPSUpgradeable.sol)
pragma solidity ^0.8.0;
import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
import "./Initializable.sol";
/**
* @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
* {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
*
* A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
* reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
* `UUPSUpgradeable` with a custom implementation of upgrades.
*
* The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
*
* _Available since v4.1._
*/
abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {
function __UUPSUpgradeable_init() internal onlyInitializing {
}
function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
}
/// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
address private immutable __self = address(this);
/**
* @dev Check that the execution is being performed through a delegatecall call and that the execution context is
* a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
* for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
* function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
* fail.
*/
modifier onlyProxy() {
require(address(this) != __self, "Function must be called through delegatecall");
require(_getImplementation() == __self, "Function must be called through active proxy");
_;
}
/**
* @dev Check that the execution is not being performed through a delegate call. This allows a function to be
* callable on the implementing contract but not through proxies.
*/
modifier notDelegated() {
require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
_;
}
/**
* @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
* implementation. It is used to validate the implementation's compatibility when performing an upgrade.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
*/
function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
return _IMPLEMENTATION_SLOT;
}
/**
* @dev Upgrade the implementation of the proxy to `newImplementation`.
*
* Calls {_authorizeUpgrade}.
*
* Emits an {Upgraded} event.
*/
function upgradeTo(address newImplementation) external virtual onlyProxy {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
}
/**
* @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
* encoded in `data`.
*
* Calls {_authorizeUpgrade}.
*
* Emits an {Upgraded} event.
*/
function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallUUPS(newImplementation, data, true);
}
/**
* @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
* {upgradeTo} and {upgradeToAndCall}.
*
* Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
*
* ```solidity
* function _authorizeUpgrade(address) internal override onlyOwner {}
* ```
*/
function _authorizeUpgrade(address newImplementation) internal virtual;
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.1) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized < type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
pragma solidity ^0.8.0;
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeaconUpgradeable {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {BeaconProxy} will check that this address is a contract.
*/
function implementation() external view returns (address);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.3) (proxy/ERC1967/ERC1967Upgrade.sol)
pragma solidity ^0.8.2;
import "../beacon/IBeaconUpgradeable.sol";
import "../../interfaces/IERC1967Upgradeable.sol";
import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/StorageSlotUpgradeable.sol";
import "../utils/Initializable.sol";
/**
* @dev This abstract contract provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
*
* _Available since v4.1._
*
* @custom:oz-upgrades-unsafe-allow delegatecall
*/
abstract contract ERC1967UpgradeUpgradeable is Initializable, IERC1967Upgradeable {
function __ERC1967Upgrade_init() internal onlyInitializing {
}
function __ERC1967Upgrade_init_unchained() internal onlyInitializing {
}
// This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation address.
*/
function _getImplementation() internal view returns (address) {
return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 implementation slot.
*/
function _setImplementation(address newImplementation) private {
require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
}
/**
* @dev Perform implementation upgrade
*
* Emits an {Upgraded} event.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Perform implementation upgrade with additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCall(
address newImplementation,
bytes memory data,
bool forceCall
) internal {
_upgradeTo(newImplementation);
if (data.length > 0 || forceCall) {
_functionDelegateCall(newImplementation, data);
}
}
/**
* @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCallUUPS(
address newImplementation,
bytes memory data,
bool forceCall
) internal {
// Upgrades from old implementations will perform a rollback test. This test requires the new
// implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
// this special case will break upgrade paths from old UUPS implementation to new ones.
if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {
_setImplementation(newImplementation);
} else {
try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {
require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
} catch {
revert("ERC1967Upgrade: new implementation is not UUPS");
}
_upgradeToAndCall(newImplementation, data, forceCall);
}
}
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Returns the current admin.
*/
function _getAdmin() internal view returns (address) {
return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 admin slot.
*/
function _setAdmin(address newAdmin) private {
require(newAdmin != address(0), "ERC1967: new admin is the zero address");
StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*/
function _changeAdmin(address newAdmin) internal {
emit AdminChanged(_getAdmin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
* This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
*/
bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
/**
* @dev Returns the current beacon.
*/
function _getBeacon() internal view returns (address) {
return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;
}
/**
* @dev Stores a new beacon in the EIP1967 beacon slot.
*/
function _setBeacon(address newBeacon) private {
require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract");
require(
AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),
"ERC1967: beacon implementation is not a contract"
);
StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;
}
/**
* @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
* not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
*
* Emits a {BeaconUpgraded} event.
*/
function _upgradeBeaconToAndCall(
address newBeacon,
bytes memory data,
bool forceCall
) internal {
_setBeacon(newBeacon);
emit BeaconUpgraded(newBeacon);
if (data.length > 0 || forceCall) {
_functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);
}
}
/**
* @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) private returns (bytes memory) {
require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.delegatecall(data);
return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed");
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822ProxiableUpgradeable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.3) (interfaces/IERC1967.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
*
* _Available since v4.9._
*/
interface IERC1967Upgradeable {
/**
* @dev Emitted when the implementation is upgraded.
*/
event Upgraded(address indexed implementation);
/**
* @dev Emitted when the admin account has changed.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Emitted when the beacon is changed.
*/
event BeaconUpgraded(address indexed beacon);
}{
"remappings": [],
"optimizer": {
"enabled": true,
"runs": 10000
},
"evmVersion": "paris",
"libraries": {},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
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stedRemote","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceID","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newDeveloper","type":"address"}],"name":"transferDeveloper","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_chainId","type":"uint16"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"traverseChains","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"}],"name":"trustedRemoteLookup","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"}]Contract Creation Code
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.