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// SPDX-License-Identifier: AGPL-3.0

pragma solidity ^0.8.0;

import "./Utils.sol";
import "../access/Ownable.sol";
import "./interfaces/IBridge.sol";
import "./interfaces/ICallProxy.sol";
import "../swap/interfaces/IPool.sol";
import "../assets/interfaces/IWETH.sol";
import "../assets/interfaces/IPToken.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

contract CallProxy is ICallProxy, Ownable {
    using SafeMath for uint;
    using SafeERC20 for IERC20;

    bool public externalCallEnabled;
    address public wethAddress;
    address public bridgeAddress;

    uint256 private constant FEE_DENOMINATOR = 10**10;

    event SetWETH(address wethAddress);
    event SetBridge(address bridgeAddress);
    event EnableExternalCall();
    event DisableExternalCall();

    modifier onlyBridge() {
        require(msg.sender == bridgeAddress, "CallProxy: only Bridge can do this");
        _;
    }

    function setWETH(address _wethAddress) public onlyOwner {
        wethAddress = _wethAddress;
        emit SetWETH(_wethAddress);
    }

    function setBridge(address _bridgeAddress) public onlyOwner {
        bridgeAddress = _bridgeAddress;
        emit SetBridge(bridgeAddress);
    }

    function enableExternalCall() public onlyOwner {
        externalCallEnabled = true;
        emit EnableExternalCall();
    }

    function disableExternalCall() public onlyOwner {
        externalCallEnabled = false;
        emit DisableExternalCall();
    }

    function proxyCall(
        address ptoken,
        address receiver,
        uint256 amount,
        bytes memory callData
    ) public override onlyBridge returns(bool) {
        (bytes1 tag, ) = Utils.NextByte(callData, 0);
        if (tag == 0x01) { // swap
            // decode data
            try this.decodeCallDataForSwap(callData)
            returns(address poolAddress,bool unwrapETH,bool swapAll,uint8 tokenIndexFrom, uint8 tokenIndexTo,uint256 dx,uint256 dy,uint256 deadline)
            {
                // check from token address
                if (address(IPool(poolAddress).coins(tokenIndexFrom)) != ptoken) {
                    _transferFromContract(ptoken, receiver, amount);
                    return true;
                }

                // check swap amount
                if (swapAll) {
                    dx = amount;
                }

                // do swap
                dy = _swap(poolAddress, tokenIndexFrom, tokenIndexTo, dx, dy, deadline);

                // check if unwrap ETH is needed
                if (unwrapETH && address(IPool(poolAddress).coins(tokenIndexTo)) == wethAddress && dy != 0) {
                    IWETH(wethAddress).withdraw(dy);
                    payable(receiver).transfer(dy);
                } else if (dy != 0) {
                    IERC20 targetToken = IPool(poolAddress).coins(tokenIndexTo);
                    targetToken.safeTransfer(receiver, dy);
                }
            } catch { /* do nothing if data is invalid*/ }
        } else if (tag == 0x02) {
            try this.decodeCallDataForWithdraw(callData) returns(address ptokenAddress, address toAddress, uint256 withdrawAmount) {
                // check
                if (ptokenAddress != ptoken) {
                    _transferFromContract(ptoken, receiver, amount);
                    return true;
                }

                if (!IPToken(ptoken).checkIfDepositWithdrawEnabled()) {
                    uint256 bridgeFeeRate = IBridge(bridgeAddress).bridgeFeeRate();
                    address feeTo = IBridge(bridgeAddress).bridgeFeeCollector();

                    if (bridgeFeeRate != 0 && feeTo != address(0)) {
                        uint256 bridgeFee = withdrawAmount.mul(bridgeFeeRate).div(FEE_DENOMINATOR);
                        withdrawAmount = withdrawAmount.sub(bridgeFee);
                        _transferFromContract(ptoken, feeTo, bridgeFee);
                    }
                } else {
                    try IPToken(ptoken).withdraw(toAddress, withdrawAmount) {} catch {}
                }
            } catch { /* do nothing if data is invalid*/ }
        } else if (externalCallEnabled && tag == 0x03) { // external call
            try this.decodeCallDataForExternalCall(callData) returns(address callee,bytes memory data) {
                // approve ptoken
                IERC20(ptoken).safeApprove(callee, 0);
                IERC20(ptoken).safeApprove(callee, amount);

                // do external call
                callee.call(data);
            } catch { /* do nothing if data is invalid*/ }
        } else { /* unknown tag, do nothing */ }

        // transfer the remaining ptoken to receiver
        uint256 balance = IERC20(ptoken).balanceOf(address(this));
        if (balance != 0) {
            _transferFromContract(ptoken, receiver, balance);
        }
        return true;
    }

    function _swap(address poolAddress, uint8 tokenIndexFrom, uint8 tokenIndexTo, uint256 dx, uint256 minDy, uint256 deadline) internal returns(uint256 dy) {
        IERC20 tokenFrom = IERC20(IPool(poolAddress).coins(tokenIndexFrom));
        tokenFrom.safeApprove(poolAddress, 0);
        tokenFrom.safeApprove(poolAddress, dx);
        try IPool(poolAddress).swap(tokenIndexFrom, tokenIndexTo, dx, minDy, deadline) returns(uint256 _dy) {
            dy = _dy;
        } catch {
            dy = 0;
        }
    }

    function decodeCallDataForSwap(bytes memory callData) public pure returns (
        address poolAddress,
        bool unwrapETH,
        bool swapAll,
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx,
        uint256 minDy,
        uint256 deadline
    ){
        bytes memory poolAddressBytes;
        uint8 boolPair;
        uint256 off = 1; // dismiss tag
        (poolAddressBytes, off) = Utils.NextVarBytes(callData, off);
        poolAddress = Utils.bytesToAddress(poolAddressBytes);

        (boolPair, off) = Utils.NextUint8(callData, off);
        (unwrapETH, swapAll) = _uint8ToBoolPair(boolPair);

        (tokenIndexFrom, off) = Utils.NextUint8(callData, off);

        (tokenIndexTo, off) = Utils.NextUint8(callData, off);

        (dx, off) = Utils.NextUint255(callData, off);

        (minDy, off) = Utils.NextUint255(callData, off);

        (deadline, off) = Utils.NextUint255(callData, off);
    }

    function encodeArgsForSwap(
        bytes memory poolAddress,
        bool unwrapETH,
        bool swapAll,
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx,
        uint256 minDy,
        uint256 deadline
    ) public pure returns(bytes memory) {
        bytes memory buff;
        buff = abi.encodePacked(
            Utils.WriteByte(0x01),
            Utils.WriteVarBytes(poolAddress),
            Utils.WriteUint8(_boolPairToUint8(unwrapETH, swapAll)),
            Utils.WriteUint8(tokenIndexFrom),
            Utils.WriteUint8(tokenIndexTo),
            Utils.WriteUint255(dx),
            Utils.WriteUint255(minDy),
            Utils.WriteUint255(deadline)
        );
        return buff;
    }

    function decodeCallDataForWithdraw(bytes memory callData) public pure returns(
        address ptokenAddress,
        address toAddress,
        uint256 amount
    ){
        bytes memory ptokenAddressBytes;
        bytes memory toAddressBytes;
        uint256 off = 1; // dismiss tag
        (ptokenAddressBytes, off) = Utils.NextVarBytes(callData, off);
        ptokenAddress = Utils.bytesToAddress(ptokenAddressBytes);

        (toAddressBytes, off) = Utils.NextVarBytes(callData, off);
        toAddress = Utils.bytesToAddress(toAddressBytes);

        (amount, off) = Utils.NextUint255(callData, off);
    }

    function encodeArgsForWithdraw(
        bytes memory ptokenAddress,
        bytes memory toAddress,
        uint256 amount
    ) public pure returns(bytes memory) {
        bytes memory buff;
        buff = abi.encodePacked(
            Utils.WriteByte(0x02),
            Utils.WriteVarBytes(ptokenAddress),
            Utils.WriteVarBytes(toAddress),
            Utils.WriteUint255(amount)
        );
        return buff;
    }

    function decodeCallDataForExternalCall(bytes memory callData) public pure returns(
        address callee,
        bytes memory data
    ){
        bytes memory calleeAddressBytes;
        uint256 off = 1; // dismiss tag
        (calleeAddressBytes, off) = Utils.NextVarBytes(callData, off);
        callee = Utils.bytesToAddress(calleeAddressBytes);

        (data, off) = Utils.NextVarBytes(callData, off);
    }

    function encodeArgsForExternalCall(
        bytes memory callee,
        bytes memory data
    ) public pure returns(bytes memory) {
        bytes memory buff;
        buff = abi.encodePacked(
            Utils.WriteByte(0x03),
            Utils.WriteVarBytes(callee),
            Utils.WriteVarBytes(data)
        );
        return buff;
    }

    function _transferFromContract(address token, address receiver, uint256 amount) internal {
        IERC20(token).safeTransfer(receiver, amount);
    }

    function _boolPairToUint8(bool flag1, bool flag2) internal pure returns(uint8 res) {
        assembly{
            res := add(flag1, mul(flag2, 2))
        }
    }

    function _uint8ToBoolPair(uint8 raw) internal pure returns(bool flag1, bool flag2) {
        assembly{
            flag1 := mod(raw, 2)
            flag2 := div(raw, 2)
        }
    }

    receive() external payable {}
}

// SPDX-License-Identifier: AGPL-3.0

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IPool {
    function coins(uint256 index) external view returns(IERC20);
    function getA() external view returns (uint256);
    function getTokenIndex(address token) external view returns (uint8);

    function getVirtualPrice() external view returns (uint256);

    function calculateSwap(uint8 tokenIndexFrom, uint8 tokenIndexTo, uint256 dx) external view returns (uint256 dy);
    function calculateRemoveLiquidity(uint256 amount) external view returns (uint256[] memory);
    function calculateTokenAmount(uint256[] calldata amounts, bool deposit) external view returns (uint256);
    function calculateWithdrawOneToken(uint256 tokenAmount, uint8 tokenIndex) external view returns (uint256 amount);

    function swap(uint8 tokenIndexFrom, uint8 tokenIndexTo, uint256 dx, uint256 minDy, uint256 deadline) external returns (uint256);
    function addLiquidity(uint256[] memory amounts, uint256 minToMint, uint256 deadline) external returns (uint256);
    function removeLiquidity(uint256 amount, uint256[] calldata minAmounts, uint256 deadline) external returns (uint256[] memory);
    function removeLiquidityOneToken(uint256 tokenAmount, uint8 tokenIndex, uint256 minAmount, uint256 deadline) external returns (uint256);
    function removeLiquidityImbalance(uint256[] calldata amounts, uint256 maxBurnAmount, uint256 deadline) external returns (uint256);

    function applySwapFee(uint256 newSwapFee) external;
    function applyAdminFee(uint256 newAdminFee) external;
    function getAdminBalance(uint256 index) external view returns (uint256);
    function withdrawAdminFee(address receiver) external;
    function rampA(uint256 _futureA, uint256 _futureTime) external;
    function stopRampA() external;
}

// SPDX-License-Identifier: AGPL-3.0

pragma solidity ^0.8.0;

interface ICallProxy {
    function proxyCall(
        address ptoken,
        address receiver,
        uint256 amount,
        bytes memory callData
    ) external returns(bool);

    function encodeArgsForWithdraw(
        bytes memory ptokenAddress,
        bytes memory toAddress,
        uint256 amount
    ) external pure returns(bytes memory);
}

// SPDX-License-Identifier: AGPL-3.0

pragma solidity ^0.8.0;

interface IBridge {
    function bridgeFeeRate() external view returns (uint256);
    function bridgeFeeCollector() external view returns (address);

    function bridgeOut(
        address fromAssetHash,
        uint64 toChainId,
        bytes memory toAddress,
        uint256 amount,
        bytes memory callData
    ) external returns(bool);

    function depositAndBridgeOut(
        address originalTokenAddress,
        address pTokenAddress,
        uint64 toChainId,
        bytes memory toAddress,
        uint256 amount,
        bytes memory callData
    ) external returns(bool);

    function bridgeOutAndWithdraw(
        address pTokenAddress,
        uint64 toChainId,
        bytes memory toAddress,
        uint256 amount
    ) external returns(bool);
}

// SPDX-License-Identifier: AGPL-3.0

pragma solidity ^0.8.0;

library Utils {

    function WriteByte(bytes1 b) internal pure returns (bytes memory) {
        return WriteUint8(uint8(b));
    }

    function WriteUint8(uint8 v) internal pure returns (bytes memory) {
        bytes memory buff;
        assembly{
            buff := mload(0x40)
            mstore(buff, 1)
            mstore(add(buff, 0x20), shl(248, v))
            // mstore(add(buff, 0x20), byte(0x1f, v))
            mstore(0x40, add(buff, 0x21))
        }
        return buff;
    }

    function WriteUint16(uint16 v) internal pure returns (bytes memory) {
        bytes memory buff;

        assembly{
            buff := mload(0x40)
            let byteLen := 0x02
            mstore(buff, byteLen)
            for {
                let mindex := 0x00
                let vindex := 0x1f
            } lt(mindex, byteLen) {
                mindex := add(mindex, 0x01)
                vindex := sub(vindex, 0x01)
            }{
                mstore8(add(add(buff, 0x20), mindex), byte(vindex, v))
            }
            mstore(0x40, add(buff, 0x22))
        }
        return buff;
    }

    function WriteUint32(uint32 v) internal pure returns(bytes memory) {
        bytes memory buff;
        assembly{
            buff := mload(0x40)
            let byteLen := 0x04
            mstore(buff, byteLen)
            for {
                let mindex := 0x00
                let vindex := 0x1f
            } lt(mindex, byteLen) {
                mindex := add(mindex, 0x01)
                vindex := sub(vindex, 0x01)
            }{
                mstore8(add(add(buff, 0x20), mindex), byte(vindex, v))
            }
            mstore(0x40, add(buff, 0x24))
        }
        return buff;
    }

    function WriteUint64(uint64 v) internal pure returns(bytes memory) {
        bytes memory buff;

        assembly{
            buff := mload(0x40)
            let byteLen := 0x08
            mstore(buff, byteLen)
            for {
                let mindex := 0x00
                let vindex := 0x1f
            } lt(mindex, byteLen) {
                mindex := add(mindex, 0x01)
                vindex := sub(vindex, 0x01)
            }{
                mstore8(add(add(buff, 0x20), mindex), byte(vindex, v))
            }
            mstore(0x40, add(buff, 0x28))
        }
        return buff;
    }

    function WriteUint255(uint256 v) internal pure returns (bytes memory) {
        require(v <= 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff, "Value exceeds uint255 range");
        bytes memory buff;

        assembly{
            buff := mload(0x40)
            let byteLen := 0x20
            mstore(buff, byteLen)
            for {
                let mindex := 0x00
                let vindex := 0x1f
            } lt(mindex, byteLen) {
                mindex := add(mindex, 0x01)
                vindex := sub(vindex, 0x01)
            }{
                mstore8(add(add(buff, 0x20), mindex), byte(vindex, v))
            }
            mstore(0x40, add(buff, 0x40))
        }
        return buff;
    }

    function WriteVarBytes(bytes memory data) internal pure returns (bytes memory) {
        uint64 l = uint64(data.length);
        return abi.encodePacked(WriteVarUint(l), data);
    }

    function WriteVarUint(uint64 v) internal pure returns (bytes memory) {
        if (v < 0xFD){
    		return WriteUint8(uint8(v));
    	} else if (v <= 0xFFFF) {
    		return abi.encodePacked(WriteByte(0xFD), WriteUint16(uint16(v)));
    	} else if (v <= 0xFFFFFFFF) {
            return abi.encodePacked(WriteByte(0xFE), WriteUint32(uint32(v)));
    	} else {
    		return abi.encodePacked(WriteByte(0xFF), WriteUint64(uint64(v)));
    	}
    }

    function NextByte(bytes memory buff, uint256 offset) internal pure returns (bytes1, uint256) {
        require(offset + 1 <= buff.length && offset < offset + 1, "NextByte, Offset exceeds maximum");
        bytes1 v;
        assembly{
            v := mload(add(add(buff, 0x20), offset))
        }
        return (v, offset + 1);
    }

    function NextUint8(bytes memory buff, uint256 offset) internal pure returns (uint8, uint256) {
        require(offset + 1 <= buff.length && offset < offset + 1, "NextUint8, Offset exceeds maximum");
        uint8 v;
        assembly{
            let tmpbytes := mload(0x40)
            let bvalue := mload(add(add(buff, 0x20), offset))
            mstore8(tmpbytes, byte(0, bvalue))
            mstore(0x40, add(tmpbytes, 0x01))
            v := mload(sub(tmpbytes, 0x1f))
        }
        return (v, offset + 1);
    }

    function NextUint16(bytes memory buff, uint256 offset) internal pure returns (uint16, uint256) {
        require(offset + 2 <= buff.length && offset < offset + 2, "NextUint16, offset exceeds maximum");

        uint16 v;
        assembly {
            let tmpbytes := mload(0x40)
            let bvalue := mload(add(add(buff, 0x20), offset))
            mstore8(tmpbytes, byte(0x01, bvalue))
            mstore8(add(tmpbytes, 0x01), byte(0, bvalue))
            mstore(0x40, add(tmpbytes, 0x02))
            v := mload(sub(tmpbytes, 0x1e))
        }
        return (v, offset + 2);
    }

    function NextUint32(bytes memory buff, uint256 offset) internal pure returns (uint32, uint256) {
        require(offset + 4 <= buff.length && offset < offset + 4, "NextUint32, offset exceeds maximum");
        uint32 v;
        assembly {
            let tmpbytes := mload(0x40)
            let byteLen := 0x04
            for {
                let tindex := 0x00
                let bindex := sub(byteLen, 0x01)
                let bvalue := mload(add(add(buff, 0x20), offset))
            } lt(tindex, byteLen) {
                tindex := add(tindex, 0x01)
                bindex := sub(bindex, 0x01)
            }{
                mstore8(add(tmpbytes, tindex), byte(bindex, bvalue))
            }
            mstore(0x40, add(tmpbytes, byteLen))
            v := mload(sub(tmpbytes, sub(0x20, byteLen)))
        }
        return (v, offset + 4);
    }

    function NextUint64(bytes memory buff, uint256 offset) internal pure returns (uint64, uint256) {
        require(offset + 8 <= buff.length && offset < offset + 8, "NextUint64, offset exceeds maximum");
        uint64 v;
        assembly {
            let tmpbytes := mload(0x40)
            let byteLen := 0x08
            for {
                let tindex := 0x00
                let bindex := sub(byteLen, 0x01)
                let bvalue := mload(add(add(buff, 0x20), offset))
            } lt(tindex, byteLen) {
                tindex := add(tindex, 0x01)
                bindex := sub(bindex, 0x01)
            }{
                mstore8(add(tmpbytes, tindex), byte(bindex, bvalue))
            }
            mstore(0x40, add(tmpbytes, byteLen))
            v := mload(sub(tmpbytes, sub(0x20, byteLen)))
        }
        return (v, offset + 8);
    }

    function NextUint255(bytes memory buff, uint256 offset) internal pure returns (uint256, uint256) {
        require(offset + 32 <= buff.length && offset < offset + 32, "NextUint255, offset exceeds maximum");
        uint256 v;
        assembly {
            let tmpbytes := mload(0x40)
            let byteLen := 0x20
            for {
                let tindex := 0x00
                let bindex := sub(byteLen, 0x01)
                let bvalue := mload(add(add(buff, 0x20), offset))
            } lt(tindex, byteLen) {
                tindex := add(tindex, 0x01)
                bindex := sub(bindex, 0x01)
            }{
                mstore8(add(tmpbytes, tindex), byte(bindex, bvalue))
            }
            mstore(0x40, add(tmpbytes, byteLen))
            v := mload(tmpbytes)
        }
        require(v <= 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff, "Value exceeds the range");
        return (v, offset + 32);
    }

    function NextVarBytes(bytes memory buff, uint256 offset) internal pure returns(bytes memory, uint256) {
        uint len;
        (len, offset) = NextVarUint(buff, offset);
        require(offset + len <= buff.length && offset <= offset + len, "NextVarBytes, offset exceeds maximum");
        bytes memory tempBytes;
        assembly{
            switch iszero(len)
            case 0 {
                // Get a location of some free memory and store it in tempBytes as
                // Solidity does for memory variables.
                tempBytes := mload(0x40)

                // The first word of the slice result is potentially a partial
                // word read from the original array. To read it, we calculate
                // the length of that partial word and start copying that many
                // bytes into the array. The first word we copy will start with
                // data we don't care about, but the last `lengthmod` bytes will
                // land at the beginning of the contents of the new array. When
                // we're done copying, we overwrite the full first word with
                // the actual length of the slice.
                let lengthmod := and(len, 31)

                // The multiplication in the next line is necessary
                // because when slicing multiples of 32 bytes (lengthmod == 0)
                // the following copy loop was copying the origin's length
                // and then ending prematurely not copying everything it should.
                let mc := add(add(tempBytes, lengthmod), mul(0x20, iszero(lengthmod)))
                let end := add(mc, len)

                for {
                    // The multiplication in the next line has the same exact purpose
                    // as the one above.
                    let cc := add(add(add(buff, lengthmod), mul(0x20, iszero(lengthmod))), offset)
                } lt(mc, end) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                    mstore(mc, mload(cc))
                }

                mstore(tempBytes, len)

                //update free-memory pointer
                //allocating the array padded to 32 bytes like the compiler does now
                mstore(0x40, and(add(mc, 31), not(31)))
            }
            //if we want a zero-length slice let's just return a zero-length array
            default {
                tempBytes := mload(0x40)

                mstore(0x40, add(tempBytes, 0x20))
            }
        }

        return (tempBytes, offset + len);
    }

    function NextVarUint(bytes memory buff, uint256 offset) internal pure returns(uint, uint256) {
        bytes1 v;
        (v, offset) = NextByte(buff, offset);

        uint value;
        if (v == 0xFD) {
            // return NextUint16(buff, offset);
            (value, offset) = NextUint16(buff, offset);
            require(value >= 0xFD && value <= 0xFFFF, "NextUint16, value outside range");
            return (value, offset);
        } else if (v == 0xFE) {
            // return NextUint32(buff, offset);
            (value, offset) = NextUint32(buff, offset);
            require(value > 0xFFFF && value <= 0xFFFFFFFF, "NextVarUint, value outside range");
            return (value, offset);
        } else if (v == 0xFF) {
            // return NextUint64(buff, offset);
            (value, offset) = NextUint64(buff, offset);
            require(value > 0xFFFFFFFF, "NextVarUint, value outside range");
            return (value, offset);
        } else{
            // return (uint8(v), offset);
            value = uint8(v);
            require(value < 0xFD, "NextVarUint, value outside range");
            return (value, offset);
        }
    }

    function bytesToAddress(bytes memory _bs) internal pure returns (address addr) {
        require(_bs.length == 20, "bytes length does not match address");
        assembly {
            // for _bs, first word store _bs.length, second word store _bs.value
            // load 32 bytes from mem[_bs+20], convert it into Uint160, meaning we take last 20 bytes as addr (address).
            addr := mload(add(_bs, 0x14))
        }
    }

    function equalStorage(bytes storage _preBytes, bytes memory _postBytes) internal view returns (bool) {
        bool success = true;

        assembly {
            // we know _preBytes_offset is 0
            let fslot := sload(_preBytes.slot)
            // Arrays of 31 bytes or less have an even value in their slot,
            // while longer arrays have an odd value. The actual length is
            // the slot divided by two for odd values, and the lowest order
            // byte divided by two for even values.
            // If the slot is even, bitwise and the slot with 255 and divide by
            // two to get the length. If the slot is odd, bitwise and the slot
            // with -1 and divide by two.
            let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
            let mlength := mload(_postBytes)

            // if lengths don't match the arrays are not equal
            switch eq(slength, mlength)
            case 1 {
                // fslot can contain both the length and contents of the array
                // if slength < 32 bytes so let's prepare for that
                // v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
                // slength != 0
                if iszero(iszero(slength)) {
                    switch lt(slength, 32)
                    case 1 {
                        // blank the last byte which is the length
                        fslot := mul(div(fslot, 0x100), 0x100)

                        if iszero(eq(fslot, mload(add(_postBytes, 0x20)))) {
                            // unsuccess:
                            success := 0
                        }
                    }
                    default {
                        // cb is a circuit breaker in the for loop since there's
                        //  no said feature for inline assembly loops
                        // cb = 1 - don't breaker
                        // cb = 0 - break
                        let cb := 1

                        // get the keccak hash to get the contents of the array
                        mstore(0x0, _preBytes.slot)
                        let sc := keccak256(0x0, 0x20)

                        let mc := add(_postBytes, 0x20)
                        let end := add(mc, mlength)

                        // the next line is the loop condition:
                        // while(uint(mc < end) + cb == 2)
                        for {} eq(add(lt(mc, end), cb), 2) {
                            sc := add(sc, 1)
                            mc := add(mc, 0x20)
                        } {
                            if iszero(eq(sload(sc), mload(mc))) {
                                // unsuccess:
                                success := 0
                                cb := 0
                            }
                        }
                    }
                }
            }
            default {
                // unsuccess:
                success := 0
            }
        }

        return success;
    }
}

// SPDX-License-Identifier: AGPL-3.0

pragma solidity ^0.8.0;

interface IWETH {
    function deposit() external payable;
    function withdraw(uint wad) external;

    function transfer(address dst, uint wad) external returns (bool);
}

// SPDX-License-Identifier: AGPL-3.0

pragma solidity ^0.8.0;

interface IPToken {
    function mint(address to, uint256 amount) external;
    function burn(uint256 amount) external;

    function deposit(address to, uint256 amount) external;
    function withdraw(address to, uint256 amount) external;

    function tokenUnderlying() external view returns(address);

    function checkAuthorizedCaller(address caller) external view returns (bool);
    function checkIfDepositWithdrawEnabled() external view returns (bool);
}

// SPDX-License-Identifier: AGPL-3.0

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // 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-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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[{"anonymous":false,"inputs":[],"name":"DisableExternalCall","type":"event"},{"anonymous":false,"inputs":[],"name":"EnableExternalCall","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"bridgeAddress","type":"address"}],"name":"SetBridge","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"wethAddress","type":"address"}],"name":"SetWETH","type":"event"},{"inputs":[],"name":"bridgeAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"callData","type":"bytes"}],"name":"decodeCallDataForExternalCall","outputs":[{"internalType":"address","name":"callee","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes","name":"callData","type":"bytes"}],"name":"decodeCallDataForSwap","outputs":[{"internalType":"address","name":"poolAddress","type":"address"},{"internalType":"bool","name":"unwrapETH","type":"bool"},{"internalType":"bool","name":"swapAll","type":"bool"},{"internalType":"uint8","name":"tokenIndexFrom","type":"uint8"},{"internalType":"uint8","name":"tokenIndexTo","type":"uint8"},{"internalType":"uint256","name":"dx","type":"uint256"},{"internalType":"uint256","name":"minDy","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes","name":"callData","type":"bytes"}],"name":"decodeCallDataForWithdraw","outputs":[{"internalType":"address","name":"ptokenAddress","type":"address"},{"internalType":"address","name":"toAddress","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"disableExternalCall","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"enableExternalCall","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"callee","type":"bytes"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"encodeArgsForExternalCall","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes","name":"poolAddress","type":"bytes"},{"internalType":"bool","name":"unwrapETH","type":"bool"},{"internalType":"bool","name":"swapAll","type":"bool"},{"internalType":"uint8","name":"tokenIndexFrom","type":"uint8"},{"internalType":"uint8","name":"tokenIndexTo","type":"uint8"},{"internalType":"uint256","name":"dx","type":"uint256"},{"internalType":"uint256","name":"minDy","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"encodeArgsForSwap","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes","name":"ptokenAddress","type":"bytes"},{"internalType":"bytes","name":"toAddress","type":"bytes"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"encodeArgsForWithdraw","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"externalCallEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"ptoken","type":"address"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"name":"proxyCall","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_bridgeAddress","type":"address"}],"name":"setBridge","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_wethAddress","type":"address"}],"name":"setWETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"wethAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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