bsc-eth-swap 编译及部署测试

2021-08-20 10:54:00

背景

项目后期需要准备一个ETH体系的资产IBC服务，设计要求轻量稳定安全。
前面对poly做过技术调研，相对去中心化，但导致运行和运维成本过高，以及近期出现的安全性问题，所以暂时搁置。
本片文章将针对BSC提供的Swap服务做技术调研，由于没有找到官方的部署文档，只有技术实现讲解，所以本篇文章将从合约代码，以及Swap程序代码阅读方向进行部署文档的反推整理。

合约实现包含了可升级合约的实现架构，相关技术细节可参考《使用OpenZeppelin编写可升级合约》

本篇文章先做bsc-eth-swap项目的部署和测试整理，后面将针对服务做二次开发或者模式技术参考，目标是开发出一个ETH体系多链资产和NFT轻量的IBC服务，后期再迭代成多节点去中心化模式。

项目组成

项目合约：https://github.com/binance-chain/eth-bsc-swap-contracts.git
项目程序：https://github.com/binance-chain/bsc-eth-swap.git

官方文档

https://github.com/binance-chain/bsc-eth-swap/blob/main/docs/spec.md

编译合约

git clone https://github.com/binance-chain/eth-bsc-swap-contracts.git
cd eth-bsc-swap-contracts/
sudo npm i -g truffle
npm i
npm run truffle:compile

部署合约

为了方便测试，以及etherscan区块浏览器对于数据的展示较完整，所以我们选择的测试网络为

  • Goerli Test Network
  • Ropsten Test Network

ETH合约部署在Goerli（主），BSC合约部署在Ropsten（侧）

ETH链合约部署

部署网络

Goerli Test Network

部署ETHSwapAgentImpl合约

使用编译后的build\contracts\ETHSwapAgentImpl.json中的abi和bytecode部署合约。

ETHSwapAgentImpl ABI
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"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":true,"internalType":"address","name":"erc20Addr","type":"address"},{"indexed":true,"internalType":"bytes32","name":"bscTxHash","type":"bytes32"},{"indexed":true,"internalType":"address","name":"toAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"SwapFilled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sponsor","type":"address"},{"indexed":true,"internalType":"address","name":"erc20Addr","type":"address"},{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"string","name":"symbol","type":"string"},{"indexed":false,"internalType":"uint8","name":"decimals","type":"uint8"}],"name":"SwapPairRegister","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc20Addr","type":"address"},{"indexed":true,"internalType":"address","name":"fromAddr","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"feeAmount","type":"uint256"}],"name":"SwapStarted","type":"event"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"filledBSCTx","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"registeredERC20","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"swapFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"fee","type":"uint256"},{"internalType":"address payable","name":"ownerAddr","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"fee","type":"uint256"}],"name":"setSwapFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"erc20Addr","type":"address"}],"name":"registerSwapPairToBSC","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"bscTxHash","type":"bytes32"},{"internalType":"address","name":"erc20Addr","type":"address"},{"internalType":"address","name":"toAddress","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"fillBSC2ETHSwap","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"erc20Addr","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"swapETH2BSC","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"payable","type":"function"}]
ETHSwapAgentImpl bytecode
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部署后的地址是0x4e99e2A70664f30d14b1f703b8bbe077872F5Fb7

部署ETHSwapAgentUpgradeableProxy合约

使用编译后的build\contracts\ETHSwapAgentUpgradeableProxy.json中的abi和bytecode部署合约。

ETHSwapAgentUpgradeableProxy abi
[{"inputs":[{"internalType":"address","name":"logic","type":"address"},{"internalType":"address","name":"admin","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"admin_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]
ETHSwapAgentUpgradeableProxy bytecode
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
部署参数
  • _logic （逻辑合约，也就是上面部署的ETHSwapAgentImpl合约地址）0x4e99e2A70664f30d14b1f703b8bbe077872F5Fb7
  • Admin_ （升级管理权限地址，需要一个单独的地址，只用于升级合约，不能与当前部署ETHSwapAgentImpl合约的ownerAddr地址相同）0x48F155527f25EB1d4cb2aa32b7e84692AA0025C0
  • _data （ETHSwapAgentImpl合约中的initialize初始化bytes数据）

ETHSwapAgentImpl中的initialize实现如下

function initialize(uint256 fee, address payable ownerAddr) public initializer {
    swapFee = fee;
    owner = ownerAddr;
}

其中的ownerAddr为逻辑合约管理权限地址，切记不能与升级管理权限地址相同，否则无法执行。fee为跨链需要缴纳的手续费。
简单说就是部署ETHSwapAgentUpgradeableProxy合约时，会把ETHSwapAgentImpl合约一同初始化{_logic.delegatecall(_data)}，此时测试时预定的参数如下

- fee = 100000000
- ownerAddr = 0xbb93FcC2bB90D46255c43DD398A1A372E12bE6Aa

此时计算_data如下

web3js.eth.abi.encodeFunctionCall({
    name: 'initialize',
    type: 'function',
    inputs: [{
        type: 'uint256',
        name: 'fee'
    },{
        type: 'address',
        name: 'ownerAddr'
    }]
}, [100000000, '0xbb93FcC2bB90D46255c43DD398A1A372E12bE6Aa']);

得到

0xda35a26f0000000000000000000000000000000000000000000000000000000005f5e100000000000000000000000000bb93fcc2bb90d46255c43dd398a1a372e12be6aa

最终三个参数为

  • _logic：0x4e99e2A70664f30d14b1f703b8bbe077872F5Fb7
  • Admin_：0x48F155527f25EB1d4cb2aa32b7e84692AA0025C0
  • _data ：0xda35a26f0000000000000000000000000000000000000000000000000000000005f5e100000000000000000000000000bb93fcc2bb90d46255c43dd398a1a372e12be6aa

部署后的地址是0x31366023017888A1ef48ca60cbB5de26aCBe6b02

测试ETHSwapAgentImpl合约

通过逻辑合约管理权限地址0xbb93FcC2bB90D46255c43DD398A1A372E12bE6Aa使用ETHSwapAgentImpl ABI访问ETHSwapAgentUpgradeableProxy部署地址0x31366023017888A1ef48ca60cbB5de26aCBe6b02

  1. 查询swapFee等于100000000，然后使用setSwapFee修改值为100000000000000，再次查询确认值与修改值相同
  2. 使用registerSwapPairToBSC注册已发行ERC20代币，代币地址0x8ee79e91b1f7b882941f0c11bb91a760134bc644，并通过registeredERC20确认注册成功

测试ETHSwapAgentUpgradeableProxy合约

通过升级合约管理权限地址0x48F155527f25EB1d4cb2aa32b7e84692AA0025C0使用ETHSwapAgentUpgradeableProxy ABI访问ETHSwapAgentUpgradeableProxy部署地址0x31366023017888A1ef48ca60cbB5de26aCBe6b02

  1. 使用changeAdmin修改当前升级合约管理权限地址为0x10210572d6b4924Af7Ef946136295e9b209E1FA0，然后验证权限生效，再修改回0x48F155527f25EB1d4cb2aa32b7e84692AA0025C0

一定确认好执行的权限地址是对应的，否则只报执行合约出错

  1. 在ETHSwapAgentImp合约中增加一个方法，
function hellowWord() public view returns (string memory) {
    return "https://www.bcskill.com";
}

并重新编译和部署，新部署的地址为0x63F27AEE1A7C228D05f67C43F6C5ED82d726b104
使用upgradeTo修改新逻辑合约地址NewImplementation为0x63F27AEE1A7C228D05f67C43F6C5ED82d726b104
然后通过逻辑合约管理权限地址，使用修改后ETHSwapAgentImpl合约编译得到的ABI，访问ETHSwapAgentUpgradeableProxy部署地址0x31366023017888A1ef48ca60cbB5de26aCBe6b02，执行hellowWord
正确返回https://www.bcskill.com
并再次验证 测试ETHSwapAgentImpl合约中的流程，保证结果都正确

此时ETHSwapAgent合约相关部署已完成，

BSC侧链合约部署

对于BSCSwapAgent相关侧链部署同理，再此不做详细讲解，只做数据的记录

部署网络

Ropsten Test Network

1. BEP20Token合约部署

BEP20TokenImplementation ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","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":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"uint8","name":"decimals","type":"uint8"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bool","name":"mintable","type":"bool"},{"internalType":"address","name":"owner","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"mintable","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"mintTo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

BEP20TokenImplementation bytecode

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部署地址：0x41941cC749d561A13A3a8295f355033D23fDc060

2. BSCSwapAgent合约部署

BSCSwapAgentImpl合约ABI
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"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":true,"internalType":"address","name":"bep20Addr","type":"address"},{"indexed":true,"internalType":"bytes32","name":"ethTxHash","type":"bytes32"},{"indexed":true,"internalType":"address","name":"toAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"SwapFilled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"ethRegisterTxHash","type":"bytes32"},{"indexed":true,"internalType":"address","name":"bep20Addr","type":"address"},{"indexed":true,"internalType":"address","name":"erc20Addr","type":"address"},{"indexed":false,"internalType":"string","name":"symbol","type":"string"},{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"uint8","name":"decimals","type":"uint8"}],"name":"SwapPairCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"bep20Addr","type":"address"},{"indexed":true,"internalType":"address","name":"erc20Addr","type":"address"},{"indexed":true,"internalType":"address","name":"fromAddr","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"feeAmount","type":"uint256"}],"name":"SwapStarted","type":"event"},{"inputs":[],"name":"bep20Implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"bep20ProxyAdmin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"filledETHTx","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"swapFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"swapMappingBSC2ETH","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"swapMappingETH2BSC","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"bep20Impl","type":"address"},{"internalType":"uint256","name":"fee","type":"uint256"},{"internalType":"address payable","name":"ownerAddr","type":"address"},{"internalType":"address","name":"bep20ProxyAdminAddr","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"fee","type":"uint256"}],"name":"setSwapFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"ethTxHash","type":"bytes32"},{"internalType":"address","name":"erc20Addr","type":"address"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"name":"createSwapPair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"ethTxHash","type":"bytes32"},{"internalType":"address","name":"erc20Addr","type":"address"},{"internalType":"address","name":"toAddress","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"fillETH2BSCSwap","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"bep20Addr","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"swapBSC2ETH","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"payable","type":"function"}]
BSCSwapAgentImpl合约bytecode
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部署后地址：0xc5612639db6250a9e44A7d846fe60adCE1f65E53

BSCSwapAgentUpgradeableProxy 合约abi

[{"inputs":[{"internalType":"address","name":"logic","type":"address"},{"internalType":"address","name":"admin","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"admin_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

BSCSwapAgentUpgradeableProxy 合约bytecode

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

此时计算_data如下

web3js.eth.abi.encodeFunctionCall({
    name: 'initialize',
    type: 'function',
    inputs: [{
        type: 'address',
        name: 'bep20Impl'
    },{
        type: 'uint256',
        name: 'fee'
    },{
        type: 'address',
        name: 'ownerAddr'
    },{
        type: 'address',
        name: 'bep20ProxyAdminAddr'
    }]
}, ['0x41941cC749d561A13A3a8295f355033D23fDc060',100000000, '0xbb93FcC2bB90D46255c43DD398A1A372E12bE6Aa','0x48F155527f25EB1d4cb2aa32b7e84692AA0025C0']);

得到

0x358394d800000000000000000000000041941cc749d561a13a3a8295f355033d23fdc0600000000000000000000000000000000000000000000000000000000005f5e100000000000000000000000000bb93fcc2bb90d46255c43dd398a1a372e12be6aa00000000000000000000000048f155527f25eb1d4cb2aa32b7e84692aa0025c0

最终三个参数为

  • _logic：0xc5612639db6250a9e44A7d846fe60adCE1f65E53
  • Admin_：0xF8329Ea42489C2164F44A81DEb3bE22c2C456109
  • _data ：0x358394d800000000000000000000000041941cc749d561a13a3a8295f355033d23fdc0600000000000000000000000000000000000000000000000000000000005f5e100000000000000000000000000bb93fcc2bb90d46255c43dd398a1a372e12be6aa00000000000000000000000048f155527f25eb1d4cb2aa32b7e84692aa0025c0

部署后的地址：0x2dd3DC6ec3ddC15d05C3719EB329a7E64e00Aad5

BSC合约管理地址

升级管理地址：0xF8329Ea42489C2164F44A81DEb3bE22c2C456109
逻辑合约管理地址：0xbb93FcC2bB90D46255c43DD398A1A372E12bE6Aa
Bep20合约管理地址：0x48F155527f25EB1d4cb2aa32b7e84692AA0025C0

Swap程序部署

编译程序

git clone https://github.com/binance-chain/bsc-eth-swap.git
make build

编译完，服务程序会生成在bsc-eth-swap\build\swap-backend

config配置

由于没有文档，还是看代码吧，先查看demo config config\config.json,以及config解析的代码
从代码角度完善配置参数以及参数作用。

{
  "key_manager_config": {
    "key_type": "local_private_key",
    "aws_region": "",
    "aws_secret_name": "",

    "local_hmac_key": "",
    "local_bsc_private_key": "",
    "local_eth_private_key": "",
    "local_admin_api_key":"",
    "local_admin_secret_key":""
  },
  "db_config": {
    "dialect": "sqlite3",
    "db_path": "./build/test.db"
  },
  "chain_config": {
    "balance_monitor_interval": 60,

    "bsc_observer_fetch_interval": 1,
    "bsc_start_height": 6010146,
    "bsc_provider": "https://ropsten.infura.io/v3/c4f8f662c565463e8e3285708cb41823",
    "bsc_confirm_num": 2,
    "bsc_swap_agent_addr":"0x2dd3DC6ec3ddC15d05C3719EB329a7E64e00Aad5",
    "bsc_explorer_url": "https://ropsten.etherscan.io/tx",
    "bsc_max_track_retry": 60,
    "bsc_alert_threshold": "1000000000000000000",
    "bsc_wait_milli_sec_between_swaps": 100,

    "eth_observer_fetch_interval": 10,
    "eth_start_height": 8018001,
    "eth_provider": "https://goerli.infura.io/v3/87aba2e668f9410498cdf74bc7a35467",
    "eth_confirm_num": 1,
    "eth_swap_agent_addr": "0x31366023017888A1ef48ca60cbB5de26aCBe6b02",
    "eth_explorer_url": "https://goerli.etherscan.io/tx",
    "eth_max_track_retry": 600,
    "eth_alert_threshold": "1000000000000000000",
    "eth_wait_milli_sec_between_swaps": 200
  },
  "log_config": {
    "level": "INFO",
    "filename": "build/test.log",
    "max_file_size_in_mb": 100,
    "max_backups_of_log_files": 1,
    "max_age_to_retain_log_files_in_days": 30,
    "use_console_logger": false,
    "use_file_logger": true,
    "compress": false
  },
  "alert_config": {
    "telegram_bot_id": "",
    "telegram_chat_id": "",
    "block_update_timeout": 10
  },
  "admin_config": {
    "listen_addr": ":8000"
  }
}

启动程序

./build/swap-backend --config-type local --config-path config/config.json

unknown block

由于现有项目不支持 EIP-1559，导致解析 block head错误，block hash无效，报 unknown block

支持EIP-1559

更新 go-ethereum模块
go get github.com/ethereum/go-ethereum@v1.10.8

需要重新生成\bsc-eth-swap\abi\*.goabi.go文件
需要准备合约编译工具环境

首次需要安装solc
sudo pip3 install solc-select
sudo solc-select install 0.6.4 //安装指定版本solc
solc-select use 0.6.4

查看solc安装位置

whereis solc
/usr/local/bin/solc /home/surou/.local/bin/solc

添加到环境变量，或者移动到默认/usr/bin

sudo cp /usr/local/bin/solc  /usr/bin

查看版本solc版本

solc --version
solc, the solidity compiler commandline interface
Version: 0.6.4+commit.1dca32f3.Linux.g++
首次需要安装protobuf
sudo apt install protobuf-compiler

编译go-ethereum

git clone https://github.com/ethereum/go-ethereum.git
cd go-ethereum/
make all

最终生成在go-ethereum\build\bin\abigen
复制到全局

sudo cp ./build/bin/abigen /usr/bin/

重新生成abi和bin

git clone https://github.com/binance-chain/eth-bsc-swap-contracts.git
cd eth-bsc-swap-contracts/
npm run flatten //合并依赖为单文件
cd eth-bsc-swap-contracts/contracts/flattened
BSCSwapAgentImpl
solc --bin ./BSCSwapAgentImpl.sol > BSCSwapAgent.bin //生成文件中只保留BSCSwapAgentImpl独立内容
solc --abi ./BSCSwapAgentImpl.sol > BSCSwapAgent.abi //生成文件中只保留BSCSwapAgentImpl独立内容
abigen --bin=BSCSwapAgent.bin --abi=BSCSwapAgent.abi --pkg=BSCSwapAgent --out=BSCSwapAgent.go
ETHSwapAgentImpl
solc --bin ./ETHSwapAgentImpl.sol > ETHSwapAgent.bin //生成文件中只保留ETHSwapAgentImpl独立内容
solc --abi ./ETHSwapAgentImpl.sol > ETHSwapAgent.abi //生成文件中只保留ETHSwapAgentImpl独立内容
abigen --bin=ETHSwapAgent.bin --abi=ETHSwapAgent.abi --pkg=ETHSwapAgent --out=ETHSwapAgent.go

回到 \bsc-eth-swap\abi目录，将上面生成的BSCSwapAgent.go,BSCSwapAgent.abi,ETHSwapAgent.abi,ETHSwapAgent.go 文件覆盖过来
然后把 BSCSwapAgent.go和ETHSwapAgent.go中的package改为abi

ERC20
cd eth-bsc-swap-contracts/
sudo npm install -g truffle-flattener
truffle-flattener node_modules/openzeppelin-solidity/contracts/token/ERC20/ERC20.sol > contracts/flattened/ERC20.sol

同上将contracts/flattened/ERC20.sol 复制到 \bsc-eth-swap\abi目录中

cd `bsc-eth-swap/abi`
solc --bin ./ERC20.sol > ERC20.bin // 删除多余注释
solc --abi ./ERC20.sol > ERC20.abi // 删除多余注释
abigen --bin=ERC20.bin --abi=ERC20.abi --pkg=ERC20 --out=ERC20.go

修改后的代码已提交

git clone https://github.com/bcskill/bsc-eth-swap.git

常见问题

  • Cannot convert string to buffer. toBuffer only supports 0x-prefixed hex strings and this string was given: 0x0NaN

把逻辑合约重新部署下，用新地址再试下，或者确认下逻辑合约初始化函数参数，是否与encodeFunctionCall参数一致

  • admin cannot fallback to proxy target

不能拿升级管理权限地址操作逻辑合约，逻辑合约管理权限地址不能与升级管理权限地址相同

注意

  1. encodeFunctionCall执行时，参数要与函数方法参数顺序一致

在线工具

https://www.sojson.com/yasuoyihang.html

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