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Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- CrossProxy
- Optimization enabled
- true
- Compiler version
- v0.4.26+commit.4563c3fc
- Optimization runs
- 200
- EVM Version
- byzantium
- Verified at
- 2023-04-20T02:16:11.621359Z
Contract source code
// File: contracts/crossApproach/lib/RapidityTxLib.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.26;
library RapidityTxLib {
/**
*
* ENUMS
*
*/
/// @notice tx info status
/// @notice uninitialized,Redeemed
enum TxStatus {None, Redeemed}
/**
*
* STRUCTURES
*
*/
struct Data {
/// @notice mapping of uniqueID to TxStatus -- uniqueID->TxStatus
mapping(bytes32 => TxStatus) mapTxStatus;
}
/**
*
* MANIPULATIONS
*
*/
/// @notice add user transaction info
/// @param uniqueID Rapidity random number
function addRapidityTx(Data storage self, bytes32 uniqueID)
internal
{
TxStatus status = self.mapTxStatus[uniqueID];
require(status == TxStatus.None, "Rapidity tx exists");
self.mapTxStatus[uniqueID] = TxStatus.Redeemed;
}
}
// File: openzeppelin-eth/contracts/math/SafeMath.sol
pragma solidity ^0.4.24;
/**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/
library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0); // Solidity only automatically asserts when dividing by 0
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0);
return a % b;
}
}
// File: contracts/crossApproach/lib/HTLCTxLib.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.26;
library HTLCTxLib {
using SafeMath for uint;
/**
*
* ENUMS
*
*/
/// @notice tx info status
/// @notice uninitialized,locked,redeemed,revoked
enum TxStatus {None, Locked, Redeemed, Revoked, AssetLocked, DebtLocked}
/**
*
* STRUCTURES
*
*/
/// @notice struct of HTLC user mint lock parameters
struct HTLCUserParams {
bytes32 xHash; /// hash of HTLC random number
bytes32 smgID; /// ID of storeman group which user has selected
uint tokenPairID; /// token pair id on cross chain
uint value; /// exchange token value
uint lockFee; /// exchange token value
uint lockedTime; /// HTLC lock time
}
/// @notice HTLC(Hashed TimeLock Contract) tx info
struct BaseTx {
bytes32 smgID; /// HTLC transaction storeman ID
uint lockedTime; /// HTLC transaction locked time
uint beginLockedTime; /// HTLC transaction begin locked time
TxStatus status; /// HTLC transaction status
}
/// @notice user tx info
struct UserTx {
BaseTx baseTx;
uint tokenPairID;
uint value;
uint fee;
address userAccount; /// HTLC transaction sender address for the security check while user's revoke
}
/// @notice storeman tx info
struct SmgTx {
BaseTx baseTx;
uint tokenPairID;
uint value;
address userAccount; /// HTLC transaction user address for the security check while user's redeem
}
/// @notice storeman debt tx info
struct DebtTx {
BaseTx baseTx;
bytes32 srcSmgID; /// HTLC transaction sender(source storeman) ID
}
struct Data {
/// @notice mapping of hash(x) to UserTx -- xHash->htlcUserTxData
mapping(bytes32 => UserTx) mapHashXUserTxs;
/// @notice mapping of hash(x) to SmgTx -- xHash->htlcSmgTxData
mapping(bytes32 => SmgTx) mapHashXSmgTxs;
/// @notice mapping of hash(x) to DebtTx -- xHash->htlcDebtTxData
mapping(bytes32 => DebtTx) mapHashXDebtTxs;
}
}
// File: contracts/interfaces/ISignatureVerifier.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity 0.4.26;
interface ISignatureVerifier {
function verify(
uint curveId,
bytes32 signature,
bytes32 groupKeyX,
bytes32 groupKeyY,
bytes32 randomPointX,
bytes32 randomPointY,
bytes32 message
) external returns (bool);
}
// File: contracts/interfaces/ITokenManager.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity 0.4.26;
interface ITokenManager {
function getTokenPairInfo(uint id) external view
returns (uint origChainID, bytes tokenOrigAccount, uint shadowChainID, bytes tokenShadowAccount);
function getTokenPairInfoSlim(uint id) external view
returns (uint origChainID, bytes tokenOrigAccount, uint shadowChainID);
function getAncestorInfo(uint id) external view
returns (bytes account, string name, string symbol, uint8 decimals, uint chainId);
function mintToken(address tokenAddress, address to, uint value) external;
function burnToken(address tokenAddress, address from, uint value) external;
function mapTokenPairType(uint tokenPairID) external view
returns (uint8 tokenPairType);
// erc1155
function mintNFT(uint tokenCrossType, address tokenAddress, address to, uint[] ids, uint[] values, bytes data) public;
function burnNFT(uint tokenCrossType, address tokenAddress, address from, uint[] ids, uint[] values) public;
}
// File: contracts/interfaces/IStoremanGroup.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.24;
interface IStoremanGroup {
function getSelectedSmNumber(bytes32 groupId) external view returns(uint number);
function getStoremanGroupConfig(bytes32 id) external view returns(bytes32 groupId, uint8 status, uint deposit, uint chain1, uint chain2, uint curve1, uint curve2, bytes gpk1, bytes gpk2, uint startTime, uint endTime);
function getDeposit(bytes32 id) external view returns(uint);
function getStoremanGroupStatus(bytes32 id) external view returns(uint8 status, uint startTime, uint endTime);
function setGpk(bytes32 groupId, bytes gpk1, bytes gpk2) external;
function setInvalidSm(bytes32 groupId, uint[] indexs, uint8[] slashTypes) external returns(bool isContinue);
function getThresholdByGrpId(bytes32 groupId) external view returns (uint);
function getSelectedSmInfo(bytes32 groupId, uint index) external view returns(address wkAddr, bytes PK, bytes enodeId);
function recordSmSlash(address wk) external;
}
// File: contracts/interfaces/IQuota.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity 0.4.26;
interface IQuota {
function userLock(uint tokenId, bytes32 storemanGroupId, uint value) external;
function userBurn(uint tokenId, bytes32 storemanGroupId, uint value) external;
function smgRelease(uint tokenId, bytes32 storemanGroupId, uint value) external;
function smgMint(uint tokenId, bytes32 storemanGroupId, uint value) external;
function upgrade(bytes32 storemanGroupId) external;
function transferAsset(bytes32 srcStoremanGroupId, bytes32 dstStoremanGroupId) external;
function receiveDebt(bytes32 srcStoremanGroupId, bytes32 dstStoremanGroupId) external;
function getUserMintQuota(uint tokenId, bytes32 storemanGroupId) external view returns (uint);
function getSmgMintQuota(uint tokenId, bytes32 storemanGroupId) external view returns (uint);
function getUserBurnQuota(uint tokenId, bytes32 storemanGroupId) external view returns (uint);
function getSmgBurnQuota(uint tokenId, bytes32 storemanGroupId) external view returns (uint);
function getAsset(uint tokenId, bytes32 storemanGroupId) external view returns (uint asset, uint asset_receivable, uint asset_payable);
function getDebt(uint tokenId, bytes32 storemanGroupId) external view returns (uint debt, uint debt_receivable, uint debt_payable);
function isDebtClean(bytes32 storemanGroupId) external view returns (bool);
}
// File: contracts/interfaces/IRC20Protocol.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.26;
interface IRC20Protocol {
function transfer(address, uint) external returns (bool);
function transferFrom(address, address, uint) external returns (bool);
function balanceOf(address _owner) external view returns (uint);
}
// File: contracts/crossApproach/lib/CrossTypes.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.26;
library CrossTypes {
using SafeMath for uint;
/**
*
* STRUCTURES
*
*/
struct Data {
/// map of the htlc transaction info
HTLCTxLib.Data htlcTxData;
/// map of the rapidity transaction info
RapidityTxLib.Data rapidityTxData;
/// quota data of storeman group
IQuota quota;
/// token manager instance interface
ITokenManager tokenManager;
/// storemanGroup admin instance interface
IStoremanGroup smgAdminProxy;
/// storemanGroup fee admin instance address
address smgFeeProxy;
ISignatureVerifier sigVerifier;
/// @notice transaction fee, smgID => fee
mapping(bytes32 => uint) mapStoremanFee;
/// @notice transaction fee, origChainID => shadowChainID => fee
mapping(uint => mapping(uint =>uint)) mapLockFee;
/// @notice transaction fee, origChainID => shadowChainID => fee
mapping(uint => mapping(uint =>uint)) mapRevokeFee;
}
/**
*
* MANIPULATIONS
*
*/
// /// @notice convert bytes32 to address
// /// @param b bytes32
// function bytes32ToAddress(bytes32 b) internal pure returns (address) {
// return address(uint160(bytes20(b))); // high
// // return address(uint160(uint256(b))); // low
// }
/// @notice convert bytes to address
/// @param b bytes
function bytesToAddress(bytes b) internal pure returns (address addr) {
assembly {
addr := mload(add(b,20))
}
}
function transfer(address tokenScAddr, address to, uint value)
internal
returns(bool)
{
uint beforeBalance;
uint afterBalance;
beforeBalance = IRC20Protocol(tokenScAddr).balanceOf(to);
// IRC20Protocol(tokenScAddr).transfer(to, value);
tokenScAddr.call(bytes4(keccak256("transfer(address,uint256)")), to, value);
afterBalance = IRC20Protocol(tokenScAddr).balanceOf(to);
return afterBalance == beforeBalance.add(value);
}
function transferFrom(address tokenScAddr, address from, address to, uint value)
internal
returns(bool)
{
uint beforeBalance;
uint afterBalance;
beforeBalance = IRC20Protocol(tokenScAddr).balanceOf(to);
// IRC20Protocol(tokenScAddr).transferFrom(from, to, value);
tokenScAddr.call(bytes4(keccak256("transferFrom(address,address,uint256)")), from, to, value);
afterBalance = IRC20Protocol(tokenScAddr).balanceOf(to);
return afterBalance == beforeBalance.add(value);
}
}
// File: contracts/lib/BasicStorageLib.sol
pragma solidity ^0.4.24;
library BasicStorageLib {
struct UintData {
mapping(bytes => mapping(bytes => uint)) _storage;
}
struct BoolData {
mapping(bytes => mapping(bytes => bool)) _storage;
}
struct AddressData {
mapping(bytes => mapping(bytes => address)) _storage;
}
struct BytesData {
mapping(bytes => mapping(bytes => bytes)) _storage;
}
struct StringData {
mapping(bytes => mapping(bytes => string)) _storage;
}
/* uintStorage */
function setStorage(UintData storage self, bytes memory key, bytes memory innerKey, uint value) internal {
self._storage[key][innerKey] = value;
}
function getStorage(UintData storage self, bytes memory key, bytes memory innerKey) internal view returns (uint) {
return self._storage[key][innerKey];
}
function delStorage(UintData storage self, bytes memory key, bytes memory innerKey) internal {
delete self._storage[key][innerKey];
}
/* boolStorage */
function setStorage(BoolData storage self, bytes memory key, bytes memory innerKey, bool value) internal {
self._storage[key][innerKey] = value;
}
function getStorage(BoolData storage self, bytes memory key, bytes memory innerKey) internal view returns (bool) {
return self._storage[key][innerKey];
}
function delStorage(BoolData storage self, bytes memory key, bytes memory innerKey) internal {
delete self._storage[key][innerKey];
}
/* addressStorage */
function setStorage(AddressData storage self, bytes memory key, bytes memory innerKey, address value) internal {
self._storage[key][innerKey] = value;
}
function getStorage(AddressData storage self, bytes memory key, bytes memory innerKey) internal view returns (address) {
return self._storage[key][innerKey];
}
function delStorage(AddressData storage self, bytes memory key, bytes memory innerKey) internal {
delete self._storage[key][innerKey];
}
/* bytesStorage */
function setStorage(BytesData storage self, bytes memory key, bytes memory innerKey, bytes memory value) internal {
self._storage[key][innerKey] = value;
}
function getStorage(BytesData storage self, bytes memory key, bytes memory innerKey) internal view returns (bytes memory) {
return self._storage[key][innerKey];
}
function delStorage(BytesData storage self, bytes memory key, bytes memory innerKey) internal {
delete self._storage[key][innerKey];
}
/* stringStorage */
function setStorage(StringData storage self, bytes memory key, bytes memory innerKey, string memory value) internal {
self._storage[key][innerKey] = value;
}
function getStorage(StringData storage self, bytes memory key, bytes memory innerKey) internal view returns (string memory) {
return self._storage[key][innerKey];
}
function delStorage(StringData storage self, bytes memory key, bytes memory innerKey) internal {
delete self._storage[key][innerKey];
}
}
// File: contracts/components/BasicStorage.sol
pragma solidity ^0.4.24;
contract BasicStorage {
/************************************************************
**
** VARIABLES
**
************************************************************/
//// basic variables
using BasicStorageLib for BasicStorageLib.UintData;
using BasicStorageLib for BasicStorageLib.BoolData;
using BasicStorageLib for BasicStorageLib.AddressData;
using BasicStorageLib for BasicStorageLib.BytesData;
using BasicStorageLib for BasicStorageLib.StringData;
BasicStorageLib.UintData internal uintData;
BasicStorageLib.BoolData internal boolData;
BasicStorageLib.AddressData internal addressData;
BasicStorageLib.BytesData internal bytesData;
BasicStorageLib.StringData internal stringData;
}
// File: contracts/crossApproach/CrossStorage.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.26;
contract CrossStorage is BasicStorage {
using HTLCTxLib for HTLCTxLib.Data;
using RapidityTxLib for RapidityTxLib.Data;
/************************************************************
**
** VARIABLES
**
************************************************************/
CrossTypes.Data internal storageData;
/// @notice locked time(in seconds)
uint public lockedTime = uint(3600*36);
/// @notice Since storeman group admin receiver address may be changed, system should make sure the new address
/// @notice can be used, and the old address can not be used. The solution is add timestamp.
/// @notice unit: second
uint public smgFeeReceiverTimeout = uint(10*60);
enum GroupStatus { none, initial, curveSeted, failed, selected, ready, unregistered, dismissed }
}
// File: contracts/components/ReentrancyGuard.sol
pragma solidity 0.4.26;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
contract ReentrancyGuard {
bool private _notEntered;
constructor () internal {
// Storing an initial non-zero value makes deployment a bit more
// expensive, but in exchange the refund on every call to nonReentrant
// will be lower in amount. Since refunds are capped to a percetange of
// the total transaction's gas, it is best to keep them low in cases
// like this one, to increase the likelihood of the full refund coming
// into effect.
_notEntered = true;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and make it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_notEntered, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_notEntered = false;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_notEntered = true;
}
}
// File: contracts/components/Owned.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.24;
/// @dev `Owned` is a base level contract that assigns an `owner` that can be
/// later changed
contract Owned {
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/// @dev `owner` is the only address that can call a function with this
/// modifier
modifier onlyOwner() {
require(msg.sender == owner, "Not owner");
_;
}
address public owner;
/// @notice The Constructor assigns the message sender to be `owner`
constructor() public {
owner = msg.sender;
}
address public newOwner;
function transferOwner(address _newOwner) public onlyOwner {
require(_newOwner != address(0), "New owner is the zero address");
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
/// @notice `owner` can step down and assign some other address to this role
/// @param _newOwner The address of the new owner. 0x0 can be used to create
/// an unowned neutral vault, however that cannot be undone
function changeOwner(address _newOwner) public onlyOwner {
newOwner = _newOwner;
}
function acceptOwnership() public {
if (msg.sender == newOwner) {
owner = newOwner;
}
}
function renounceOwnership() public onlyOwner {
owner = address(0);
}
}
// File: contracts/components/Halt.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.24;
contract Halt is Owned {
bool public halted = false;
modifier notHalted() {
require(!halted, "Smart contract is halted");
_;
}
modifier isHalted() {
require(halted, "Smart contract is not halted");
_;
}
/// @notice function Emergency situation that requires
/// @notice contribution period to stop or not.
function setHalt(bool halt)
public
onlyOwner
{
halted = halt;
}
}
// File: contracts/components/Proxy.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.24;
/**
* Math operations with safety checks
*/
contract Proxy {
event Upgraded(address indexed implementation);
address internal _implementation;
function implementation() public view returns (address) {
return _implementation;
}
function () external payable {
address _impl = _implementation;
require(_impl != address(0), "implementation contract not set");
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
// File: contracts/crossApproach/CrossProxy.sol
/*
Copyright 2019 Wanchain Foundation.
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.
*/
// _ _ _
// __ ____ _ _ __ ___| |__ __ _(_)_ __ __| | _____ __
// \ \ /\ / / _` | '_ \ / __| '_ \ / _` | | '_ \@/ _` |/ _ \ \ / /
// \ V V / (_| | | | | (__| | | | (_| | | | | | (_| | __/\ V /
// \_/\_/ \__,_|_| |_|\___|_| |_|\__,_|_|_| |_|\__,_|\___| \_/
//
//
pragma solidity ^0.4.26;
/**
* Math operations with safety checks
*/
contract CrossProxy is CrossStorage, ReentrancyGuard, Halt, Proxy {
///@dev update the address of CrossDelegate contract
///@param impl the address of the new CrossDelegate contract
function upgradeTo(address impl) public onlyOwner {
require(impl != address(0), "Cannot upgrade to invalid address");
require(impl != _implementation, "Cannot upgrade to the same implementation");
_implementation = impl;
emit Upgraded(impl);
}
}
Contract ABI
[{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"upgradeTo","inputs":[{"type":"address","name":"impl"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"transferOwner","inputs":[{"type":"address","name":"_newOwner"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"implementation","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"renounceOwnership","inputs":[],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"acceptOwnership","inputs":[],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"owner","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"changeOwner","inputs":[{"type":"address","name":"_newOwner"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"lockedTime","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"bool","name":""}],"name":"halted","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"newOwner","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"smgFeeReceiverTimeout","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setHalt","inputs":[{"type":"bool","name":"halt"}],"constant":false},{"type":"fallback","stateMutability":"payable","payable":true},{"type":"event","name":"Upgraded","inputs":[{"type":"address","name":"implementation","indexed":true}],"anonymous":false},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","indexed":true},{"type":"address","name":"newOwner","indexed":true}],"anonymous":false}]
Contract Creation Code
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Deployed ByteCode
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