mirror of
https://github.com/Instadapp/smart-contract.git
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123 lines
11 KiB
JSON
123 lines
11 KiB
JSON
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{
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"schemaVersion": "2.0.0",
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"contractName": "Kyber",
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"compilerOutput": {
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"abi": [
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{
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"constant": true,
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"inputs": [
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{
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"name": "src",
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"type": "address"
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},
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{
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"name": "dest",
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"type": "address"
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},
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{
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"name": "srcQty",
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"type": "uint256"
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}
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],
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"name": "getExpectedRate",
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"outputs": [
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{
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"name": "",
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"type": "uint256"
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},
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{
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"name": "",
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"type": "uint256"
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}
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],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"name": "src",
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"type": "address"
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},
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{
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"name": "srcAmount",
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"type": "uint256"
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},
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{
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"name": "dest",
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"type": "address"
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},
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{
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"name": "destAddress",
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"type": "address"
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},
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{
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"name": "maxDestAmount",
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"type": "uint256"
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},
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{
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"name": "minConversionRate",
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"type": "uint256"
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},
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{
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"name": "walletId",
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"type": "address"
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}
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],
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"name": "trade",
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"outputs": [
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{
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"name": "",
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"type": "uint256"
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}
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],
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"payable": true,
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"stateMutability": "payable",
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"type": "function"
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}
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],
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"devdoc": {
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"methods": {}
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}
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},
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"sources": {
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"Bin/Kyber.sol": {
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"id": 0
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},
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"openzeppelin-solidity/contracts/math/SafeMath.sol": {
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"id": 8
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},
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"openzeppelin-solidity/contracts/token/ERC20/IERC20.sol": {
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"id": 9
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}
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},
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"sourceCodes": {
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"Bin/Kyber.sol": "pragma solidity ^0.5.2;\n\nimport \"openzeppelin-solidity/contracts/math/SafeMath.sol\";\nimport \"openzeppelin-solidity/contracts/token/ERC20/IERC20.sol\";\n\ninterface AddressRegistry {\n function getAddr(string calldata name) external view returns (address);\n}\n\ninterface Kyber {\n // Kyber's trade function\n function trade(\n address src,\n uint srcAmount,\n address dest,\n address destAddress,\n uint maxDestAmount,\n uint minConversionRate,\n address walletId\n ) external payable returns (uint);\n // Kyber's Get expected Rate function\n function getExpectedRate(address src, address dest, uint srcQty) external view returns (uint, uint);\n}\n\ncontract Registry {\n address public addressRegistry;\n modifier onlyAdmin() {\n require(msg.sender == _getAddress(\"admin\"), \"Permission Denied\");\n _;\n }\n function _getAddress(string memory name) internal view returns (address) {\n AddressRegistry addrReg = AddressRegistry(addressRegistry);\n return addrReg.getAddr(name);\n }\n}\n\ncontract helper is Registry {\n function _getToken(address trader, address src, uint srcAmt, address eth) internal returns (uint ethQty) {\n if (src == eth) {\n require(msg.value == srcAmt, \"Invalid Operation\");\n ethQty = srcAmt;\n } else {\n IERC20 tokenFunctions = IERC20(src);\n tokenFunctions.transferFrom(trader, address(this), srcAmt);\n ethQty = 0;\n }\n }\n\n // approve to Kyber Proxy contract\n function _approveKyber(address token) internal returns (bool) {\n address kyberProxy = _getAddress(\"kyber\");\n IERC20 tokenFunctions = IERC20(token);\n return tokenFunctions.approve(kyberProxy, uint(0 - 1));\n }\n\n // Check Allowance to Kyber Proxy contract\n function _allowanceKyber(address token) internal view returns (uint) {\n address kyberProxy = _getAddress(\"kyber\");\n IERC20 tokenFunctions = IERC20(token);\n return tokenFunctions.allowance(address(this), kyberProxy);\n }\n\n // Check allowance, if not approve\n function _allowanceApproveKyber(address token) internal returns (bool) {\n uint allowanceGiven = _allowanceKyber(token);\n if (allowanceGiven == 0) {\n return _approveKyber(token);\n } else {\n return true;\n }\n }\n}\n\ncontract Trade is helper {\n using SafeMath for uint;\n\n event KyberTrade(address src, uint srcAmt, address dest, uint destAmt, address beneficiary, uint minConversionRate, address affiliate);\n\n function getExpectedRateKyber(address src, address dest, uint srcAmt) public view returns (uint, uint) {\n Kyber kyberFunctions = Kyber(_getAddress(\"kyber\"));\n return kyberFunctions.getExpectedRate(src, dest, srcAmt);\n }\n\n /**\n * @dev Kyber's trade when token to sell Amount fixed\n * @param src - Token address to sell (for ETH it's \"0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\")\n * @param srcAmt - amount of token for sell\n * @param dest - Token address to buy (for ETH it's \"0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\")\n * @param minDestAmt - min amount of token to buy (slippage)\n */\n function tradeSrcKyber(\n address src, // token to sell\n uint srcAmt, // amount of token for sell\n address dest, // token to buy\n uint minDestAmt // minimum slippage rate\n ) public payable returns (uint tokensBought) {\n address eth = _getAddress(\"eth\");\n uint ethQty = _getToken(msg.sender, src, srcAmt, eth);\n\n if (src != eth) {\n _allowanceApproveKyber(src);\n }\n\n // Interacting with Kyber Proxy Contract\n Kyber kyberFunctions = Kyber(_getAddress(\"kyber\"));\n tokensBought = kyberFunctions.trade.value(ethQty)(src, srcAmt, dest, msg.sender, uint(0 - 1), minDestAmt, _getAddress(\"admin\"));\n\n emit KyberTrade(src, srcAmt, dest, token
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"openzeppelin-solidity/contracts/math/SafeMath.sol": "pragma solidity ^0.5.2;\n\n/**\n * @title SafeMath\n * @dev Unsigned math operations with safety checks that revert on error\n */\nlibrary SafeMath {\n /**\n * @dev Multiplies two unsigned integers, reverts on overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b);\n\n return c;\n }\n\n /**\n * @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0);\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a);\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Adds two unsigned integers, reverts on overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a);\n\n return c;\n }\n\n /**\n * @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo),\n * reverts when dividing by zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0);\n return a % b;\n }\n}\n",
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"openzeppelin-solidity/contracts/token/ERC20/IERC20.sol": "pragma solidity ^0.5.2;\n\n/**\n * @title ERC20 interface\n * @dev see https://eips.ethereum.org/EIPS/eip-20\n */\ninterface IERC20 {\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(address from, address to, uint256 value) external returns (bool);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n"
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},
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"sourceTreeHashHex": "0xaa360f8e2c65e34e3697c5f348f1f27a6f75e94c847cf9c08035c8bdd04eb43f",
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"compiler": {
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"name": "solc",
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"version": "soljson-v0.5.7+commit.6da8b019.js",
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"settings": {
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"optimizer": {
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"enabled": false
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},
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"outputSelection": {
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"*": {
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"*": [
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"abi",
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"devdoc"
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]
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}
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},
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"remappings": [
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"openzeppelin-solidity=/Users/ravindra/code/contract-v2/node_modules/openzeppelin-solidity"
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]
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}
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},
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"networks": {}
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}
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