文件 1 的 7:Address.sol
pragma solidity ^0.8.0;
library Address {
function isContract(address account) internal view returns (bool) {
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
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"
);
}
function functionCall(address target, bytes memory data)
internal
returns (bytes memory)
{
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
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"
);
}
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"
);
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) =
target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function functionStaticCall(address target, bytes memory data)
internal
view
returns (bytes memory)
{
return
functionStaticCall(
target,
data,
"Address: low-level static call failed"
);
}
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function functionDelegateCall(address target, bytes memory data)
internal
returns (bytes memory)
{
return
functionDelegateCall(
target,
data,
"Address: low-level delegate call failed"
);
}
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) private pure returns (bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
文件 2 的 7:Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this;
return msg.data;
}
}
文件 3 的 7:IERC20.sol
pragma solidity ^0.8.0;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount)
external
returns (bool);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
文件 4 的 7:Ownable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
文件 5 的 7:SafeERC20.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../../../utils/Address.sol";
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(
token,
abi.encodeWithSelector(token.transfer.selector, to, value)
);
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(
token,
abi.encodeWithSelector(token.transferFrom.selector, from, to, value)
);
}
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(
token,
abi.encodeWithSelector(token.approve.selector, spender, value)
);
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(
token,
abi.encodeWithSelector(
token.approve.selector,
spender,
newAllowance
)
);
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(
oldAllowance >= value,
"SafeERC20: decreased allowance below zero"
);
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(
token,
abi.encodeWithSelector(
token.approve.selector,
spender,
newAllowance
)
);
}
}
function _callOptionalReturn(IERC20 token, bytes memory data) private {
bytes memory returndata =
address(token).functionCall(
data,
"SafeERC20: low-level call failed"
);
if (returndata.length > 0) {
require(
abi.decode(returndata, (bool)),
"SafeERC20: ERC20 operation did not succeed"
);
}
}
}
文件 6 的 7:ZapBaseV2.sol
pragma solidity ^0.8.0;
import "../oz/0.8.0/access/Ownable.sol";
import "../oz/0.8.0/token/ERC20/utils/SafeERC20.sol";
abstract contract ZapBaseV2 is Ownable {
using SafeERC20 for IERC20;
bool public stopped = false;
mapping(address => bool) public feeWhitelist;
uint256 public goodwill;
uint256 affiliateSplit;
mapping(address => bool) public affiliates;
mapping(address => mapping(address => uint256)) public affiliateBalance;
mapping(address => uint256) public totalAffiliateBalance;
mapping(address => bool) public approvedTargets;
address internal constant ETHAddress =
0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
constructor(uint256 _goodwill, uint256 _affiliateSplit) {
goodwill = _goodwill;
affiliateSplit = _affiliateSplit;
}
modifier stopInEmergency {
if (stopped) {
revert("Temporarily Paused");
} else {
_;
}
}
function _getBalance(address token)
internal
view
returns (uint256 balance)
{
if (token == address(0)) {
balance = address(this).balance;
} else {
balance = IERC20(token).balanceOf(address(this));
}
}
function _approveToken(address token, address spender) internal {
IERC20 _token = IERC20(token);
if (_token.allowance(address(this), spender) > 0) return;
else {
_token.safeApprove(spender, type(uint256).max);
}
}
function _approveToken(
address token,
address spender,
uint256 amount
) internal {
IERC20(token).safeApprove(spender, 0);
IERC20(token).safeApprove(spender, amount);
}
function toggleContractActive() public onlyOwner {
stopped = !stopped;
}
function set_feeWhitelist(address zapAddress, bool status)
external
onlyOwner
{
feeWhitelist[zapAddress] = status;
}
function set_new_goodwill(uint256 _new_goodwill) public onlyOwner {
require(
_new_goodwill >= 0 && _new_goodwill <= 100,
"GoodWill Value not allowed"
);
goodwill = _new_goodwill;
}
function set_new_affiliateSplit(uint256 _new_affiliateSplit)
external
onlyOwner
{
require(
_new_affiliateSplit <= 100,
"Affiliate Split Value not allowed"
);
affiliateSplit = _new_affiliateSplit;
}
function set_affiliate(address _affiliate, bool _status)
external
onlyOwner
{
affiliates[_affiliate] = _status;
}
function withdrawTokens(address[] calldata tokens) external onlyOwner {
for (uint256 i = 0; i < tokens.length; i++) {
uint256 qty;
if (tokens[i] == ETHAddress) {
qty = address(this).balance - totalAffiliateBalance[tokens[i]];
Address.sendValue(payable(owner()), qty);
} else {
qty =
IERC20(tokens[i]).balanceOf(address(this)) -
totalAffiliateBalance[tokens[i]];
IERC20(tokens[i]).safeTransfer(owner(), qty);
}
}
}
function affilliateWithdraw(address[] calldata tokens) external {
uint256 tokenBal;
for (uint256 i = 0; i < tokens.length; i++) {
tokenBal = affiliateBalance[msg.sender][tokens[i]];
affiliateBalance[msg.sender][tokens[i]] = 0;
totalAffiliateBalance[tokens[i]] =
totalAffiliateBalance[tokens[i]] -
tokenBal;
if (tokens[i] == ETHAddress) {
Address.sendValue(payable(msg.sender), tokenBal);
} else {
IERC20(tokens[i]).safeTransfer(msg.sender, tokenBal);
}
}
}
function setApprovedTargets(
address[] calldata targets,
bool[] calldata isApproved
) external onlyOwner {
require(targets.length == isApproved.length, "Invalid Input length");
for (uint256 i = 0; i < targets.length; i++) {
approvedTargets[targets[i]] = isApproved[i];
}
}
receive() external payable {
require(msg.sender != tx.origin, "Do not send ETH directly");
}
}
文件 7 的 7:Zapper_Matic_Bridge_V1.sol
pragma solidity ^0.8.0;
import "../../_base/ZapBaseV2.sol";
interface IRootChainManager {
function depositEtherFor(address user) external payable;
function depositFor(
address user,
address rootToken,
bytes calldata depositData
) external;
function tokenToType(address) external returns (bytes32);
function typeToPredicate(bytes32) external returns (address);
}
interface IDepositManager {
function depositERC20ForUser(
address _token,
address _user,
uint256 _amount
) external;
}
interface IWETH {
function deposit() external payable;
}
contract Zapper_Matic_Bridge_V1_1 is ZapBaseV2 {
using SafeERC20 for IERC20;
address private constant wethTokenAddress =
0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
IRootChainManager public rootChainManager =
IRootChainManager(0xA0c68C638235ee32657e8f720a23ceC1bFc77C77);
IDepositManager public depositManager =
IDepositManager(0x401F6c983eA34274ec46f84D70b31C151321188b);
address private constant maticAddress =
0x7D1AfA7B718fb893dB30A3aBc0Cfc608AaCfeBB0;
constructor(uint256 _goodwill, uint256 _affiliateSplit)
ZapBaseV2(_goodwill, _affiliateSplit)
{
_approveToken(maticAddress, address(depositManager));
approvedTargets[0xDef1C0ded9bec7F1a1670819833240f027b25EfF] = true;
}
function ZapBridge(
address fromToken,
address toToken,
uint256[2] calldata swapAmounts,
uint256[2] calldata minTokensRec,
address[2] calldata swapTargets,
bytes[2] calldata swapData,
address affiliate
) external payable stopInEmergency {
uint256[2] memory toInvest =
_pullTokens(fromToken, swapAmounts, affiliate);
if (swapAmounts[0] > 0) {
uint256 toTokenAmt =
_fillQuote(
fromToken,
toInvest[0],
toToken,
swapTargets[0],
swapData[0]
);
require(toTokenAmt >= minTokensRec[0], "ERR: High Slippage 1");
_bridgeToken(toToken, toTokenAmt);
}
if (swapAmounts[1] > 0) {
uint256 maticAmount =
_fillQuote(
fromToken,
toInvest[1],
maticAddress,
swapTargets[1],
swapData[1]
);
require(maticAmount >= minTokensRec[1], "ERR: High Slippage 2");
_bridgeMatic(maticAmount);
}
}
function _bridgeToken(address toToken, uint256 toTokenAmt) internal {
if (toToken == address(0)) {
rootChainManager.depositEtherFor{ value: toTokenAmt }(msg.sender);
} else {
bytes32 tokenType = rootChainManager.tokenToType(toToken);
address predicate = rootChainManager.typeToPredicate(tokenType);
_approveToken(toToken, predicate);
rootChainManager.depositFor(
msg.sender,
toToken,
abi.encode(toTokenAmt)
);
}
}
function _bridgeMatic(uint256 maticAmount) internal {
depositManager.depositERC20ForUser(
maticAddress,
msg.sender,
maticAmount
);
}
function _fillQuote(
address fromToken,
uint256 amount,
address toToken,
address swapTarget,
bytes memory swapCallData
) internal returns (uint256 amtBought) {
if (fromToken == wethTokenAddress && toToken == address(0)) {
IWETH(wethTokenAddress).deposit{ value: amount }();
return amount;
}
uint256 valueToSend;
if (fromToken == toToken) {
return amount;
}
if (fromToken == address(0)) {
valueToSend = amount;
} else {
_approveToken(fromToken, swapTarget);
}
uint256 iniBal = _getBalance(toToken);
require(approvedTargets[swapTarget], "Target not Authorized");
(bool success, ) = swapTarget.call{ value: valueToSend }(swapCallData);
require(success, "Error Swapping Tokens");
uint256 finalBal = _getBalance(toToken);
amtBought = finalBal - iniBal;
}
function _pullTokens(
address fromToken,
uint256[2] memory swapAmounts,
address affiliate
) internal returns (uint256[2] memory toInvest) {
if (fromToken == address(0)) {
require(msg.value > 0, "No eth sent");
require(
swapAmounts[0] + (swapAmounts[1]) == msg.value,
"msg.value != fromTokenAmounts"
);
} else {
require(msg.value == 0, "Eth sent with token");
IERC20(fromToken).safeTransferFrom(
msg.sender,
address(this),
swapAmounts[0] + (swapAmounts[1])
);
}
if (swapAmounts[0] > 0) {
toInvest[0] =
swapAmounts[0] -
(_subtractGoodwill(fromToken, swapAmounts[0], affiliate));
}
if (swapAmounts[1] > 0) {
toInvest[1] =
swapAmounts[1] -
(_subtractGoodwill(fromToken, swapAmounts[1], affiliate));
}
}
function _subtractGoodwill(
address token,
uint256 amount,
address affiliate
) internal returns (uint256 totalGoodwillPortion) {
bool whitelisted = feeWhitelist[msg.sender];
if (!whitelisted && goodwill > 0) {
totalGoodwillPortion = (amount * goodwill) / 10000;
if (affiliates[affiliate]) {
if (token == address(0)) {
token = ETHAddress;
}
uint256 affiliatePortion =
(totalGoodwillPortion * affiliateSplit) / 100;
affiliateBalance[affiliate][token] += affiliatePortion;
totalAffiliateBalance[token] += affiliatePortion;
}
}
}
}
{
"compilationTarget": {
"contracts/Polygon/Bridge/Zapper_Matic_Bridge_V1.sol": "Zapper_Matic_Bridge_V1_1"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs",
"useLiteralContent": true
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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