{
"address": "0x9759a6ac90977b93b58547b4a71c78317f391a28",
"name": "DaiJoin",
"language": "solidity",
"compiler_version": "v0.5.12+commit.7709ece9",
"optimization": false,
"optimization_runs": null,
"evm_version": "default",
"verified_at": "2024-04-04T20:44:38.738367Z",
"fully_verified": false,
"proxy_type": null,
"external_libraries": [],
"sources": {
"0x9759a6ac90977b93b58547b4a71c78317f391a28.sol": "/**\n *Submitted for verification at Etherscan.io on 2019-11-14\n*/\n\n// hevm: flattened sources of /nix/store/8xb41r4qd0cjb63wcrxf1qmfg88p0961-dss-6fd7de0/src/join.sol\npragma solidity =0.5.12;\n\n////// /nix/store/8xb41r4qd0cjb63wcrxf1qmfg88p0961-dss-6fd7de0/src/lib.sol\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see .\n\n/* pragma solidity 0.5.12; */\n\ncontract LibNote {\n event LogNote(\n bytes4 indexed sig,\n address indexed usr,\n bytes32 indexed arg1,\n bytes32 indexed arg2,\n bytes data\n ) anonymous;\n\n modifier note {\n _;\n assembly {\n // log an 'anonymous' event with a constant 6 words of calldata\n // and four indexed topics: selector, caller, arg1 and arg2\n let mark := msize // end of memory ensures zero\n mstore(0x40, add(mark, 288)) // update free memory pointer\n mstore(mark, 0x20) // bytes type data offset\n mstore(add(mark, 0x20), 224) // bytes size (padded)\n calldatacopy(add(mark, 0x40), 0, 224) // bytes payload\n log4(mark, 288, // calldata\n shl(224, shr(224, calldataload(0))), // msg.sig\n caller, // msg.sender\n calldataload(4), // arg1\n calldataload(36) // arg2\n )\n }\n }\n}\n\n////// /nix/store/8xb41r4qd0cjb63wcrxf1qmfg88p0961-dss-6fd7de0/src/join.sol\n/// join.sol -- Basic token adapters\n\n// Copyright (C) 2018 Rain \n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU Affero General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU Affero General Public License for more details.\n//\n// You should have received a copy of the GNU Affero General Public License\n// along with this program. If not, see .\n\n/* pragma solidity 0.5.12; */\n\n/* import \"./lib.sol\"; */\n\ncontract GemLike {\n function decimals() public view returns (uint);\n function transfer(address,uint) external returns (bool);\n function transferFrom(address,address,uint) external returns (bool);\n}\n\ncontract DSTokenLike {\n function mint(address,uint) external;\n function burn(address,uint) external;\n}\n\ncontract VatLike {\n function slip(bytes32,address,int) external;\n function move(address,address,uint) external;\n}\n\n/*\n Here we provide *adapters* to connect the Vat to arbitrary external\n token implementations, creating a bounded context for the Vat. The\n adapters here are provided as working examples:\n\n - `GemJoin`: For well behaved ERC20 tokens, with simple transfer\n semantics.\n\n - `ETHJoin`: For native Ether.\n\n - `DaiJoin`: For connecting internal Dai balances to an external\n `DSToken` implementation.\n\n In practice, adapter implementations will be varied and specific to\n individual collateral types, accounting for different transfer\n semantics and token standards.\n\n Adapters need to implement two basic methods:\n\n - `join`: enter collateral into the system\n - `exit`: remove collateral from the system\n\n*/\n\ncontract GemJoin is LibNote {\n // --- Auth ---\n mapping (address => uint) public wards;\n function rely(address usr) external note auth { wards[usr] = 1; }\n function deny(address usr) external note auth { wards[usr] = 0; }\n modifier auth {\n require(wards[msg.sender] == 1, \"GemJoin/not-authorized\");\n _;\n }\n\n VatLike public vat;\n bytes32 public ilk;\n GemLike public gem;\n uint public dec;\n uint public live; // Access Flag\n\n constructor(address vat_, bytes32 ilk_, address gem_) public {\n wards[msg.sender] = 1;\n live = 1;\n vat = VatLike(vat_);\n ilk = ilk_;\n gem = GemLike(gem_);\n dec = gem.decimals();\n }\n function cage() external note auth {\n live = 0;\n }\n function join(address usr, uint wad) external note {\n require(live == 1, \"GemJoin/not-live\");\n require(int(wad) >= 0, \"GemJoin/overflow\");\n vat.slip(ilk, usr, int(wad));\n require(gem.transferFrom(msg.sender, address(this), wad), \"GemJoin/failed-transfer\");\n }\n function exit(address usr, uint wad) external note {\n require(wad <= 2 ** 255, \"GemJoin/overflow\");\n vat.slip(ilk, msg.sender, -int(wad));\n require(gem.transfer(usr, wad), \"GemJoin/failed-transfer\");\n }\n}\n\ncontract ETHJoin is LibNote {\n // --- Auth ---\n mapping (address => uint) public wards;\n function rely(address usr) external note auth { wards[usr] = 1; }\n function deny(address usr) external note auth { wards[usr] = 0; }\n modifier auth {\n require(wards[msg.sender] == 1, \"ETHJoin/not-authorized\");\n _;\n }\n\n VatLike public vat;\n bytes32 public ilk;\n uint public live; // Access Flag\n\n constructor(address vat_, bytes32 ilk_) public {\n wards[msg.sender] = 1;\n live = 1;\n vat = VatLike(vat_);\n ilk = ilk_;\n }\n function cage() external note auth {\n live = 0;\n }\n function join(address usr) external payable note {\n require(live == 1, \"ETHJoin/not-live\");\n require(int(msg.value) >= 0, \"ETHJoin/overflow\");\n vat.slip(ilk, usr, int(msg.value));\n }\n function exit(address payable usr, uint wad) external note {\n require(int(wad) >= 0, \"ETHJoin/overflow\");\n vat.slip(ilk, msg.sender, -int(wad));\n usr.transfer(wad);\n }\n}\n\ncontract DaiJoin is LibNote {\n // --- Auth ---\n mapping (address => uint) public wards;\n function rely(address usr) external note auth { wards[usr] = 1; }\n function deny(address usr) external note auth { wards[usr] = 0; }\n modifier auth {\n require(wards[msg.sender] == 1, \"DaiJoin/not-authorized\");\n _;\n }\n\n VatLike public vat;\n DSTokenLike public dai;\n uint public live; // Access Flag\n\n constructor(address vat_, address dai_) public {\n wards[msg.sender] = 1;\n live = 1;\n vat = VatLike(vat_);\n dai = DSTokenLike(dai_);\n }\n function cage() external note auth {\n live = 0;\n }\n uint constant ONE = 10 ** 27;\n function mul(uint x, uint y) internal pure returns (uint z) {\n require(y == 0 || (z = x * y) / y == x);\n }\n function join(address usr, uint wad) external note {\n vat.move(address(this), usr, mul(ONE, wad));\n dai.burn(msg.sender, wad);\n }\n function exit(address usr, uint wad) external note {\n require(live == 1, \"DaiJoin/not-live\");\n vat.move(msg.sender, address(this), mul(ONE, wad));\n dai.mint(usr, wad);\n }\n}"
},
"source_sha256": {
"0x9759a6ac90977b93b58547b4a71c78317f391a28.sol": "51c2462ad6c7ae2bc4776421a914bcd541abd0e36c85bfa2368bbd6da3d835e5"
},
"abi": [
{
"inputs": [
{
"internalType": "address",
"name": "vat_",
"type": "address"
},
{
"internalType": "address",
"name": "dai_",
"type": "address"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"anonymous": true,
"inputs": [
{
"indexed": true,
"internalType": "bytes4",
"name": "sig",
"type": "bytes4"
},
{
"indexed": true,
"internalType": "address",
"name": "usr",
"type": "address"
},
{
"indexed": true,
"internalType": "bytes32",
"name": "arg1",
"type": "bytes32"
},
{
"indexed": true,
"internalType": "bytes32",
"name": "arg2",
"type": "bytes32"
},
{
"indexed": false,
"internalType": "bytes",
"name": "data",
"type": "bytes"
}
],
"name": "LogNote",
"type": "event"
},
{
"constant": false,
"inputs": [],
"name": "cage",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "dai",
"outputs": [
{
"internalType": "contract DSTokenLike",
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"internalType": "address",
"name": "usr",
"type": "address"
}
],
"name": "deny",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"internalType": "address",
"name": "usr",
"type": "address"
},
{
"internalType": "uint256",
"name": "wad",
"type": "uint256"
}
],
"name": "exit",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"internalType": "address",
"name": "usr",
"type": "address"
},
{
"internalType": "uint256",
"name": "wad",
"type": "uint256"
}
],
"name": "join",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "live",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"internalType": "address",
"name": "usr",
"type": "address"
}
],
"name": "rely",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "vat",
"outputs": [
{
"internalType": "contract VatLike",
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": true,
"inputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"name": "wards",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
}
],
"provenance": "[ext-api] blockscout-verified source + ABI (api/v2 smart-contracts) as published by the deployer community; captured by the registry sweep"
}