{ "address": "0x09e05ff6142f2f9de8b6b65855a1d56b6cfe4c58", "name": "ESM", "language": "solidity", "compiler_version": "v0.6.12+commit.27d51765", "optimization": false, "optimization_runs": null, "evm_version": "default", "verified_at": "2025-03-26T03:17:01.579702Z", "fully_verified": false, "proxy_type": null, "external_libraries": [], "sources": { "0x09e05ff6142f2f9de8b6b65855a1d56b6cfe4c58.sol": "/**\n *Submitted for verification at Etherscan.io on 2022-02-02\n*/\n\n// SPDX-License-Identifier: AGPL-3.0-or-later\npragma solidity >=0.6.12;\n\n////// src/ESM.sol\n\n/// ESM.sol\n\n// Copyright (C) 2019-2022 Dai Foundation\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 >=0.6.12; */\n\ninterface GemLike {\n function balanceOf(address) external view returns (uint256);\n\n function burn(uint256) external;\n\n function transfer(address, uint256) external returns (bool);\n\n function transferFrom(address, address, uint256) external returns (bool);\n}\n\ninterface EndLike {\n function live() external view returns (uint256);\n\n function vat() external view returns (address);\n\n function cage() external;\n}\n\ninterface DenyLike {\n function deny(address) external;\n}\n\ncontract ESM {\n\n uint256 constant WAD = 10 ** 18;\n\n GemLike public immutable gem; // collateral (MKR token)\n address public immutable proxy; // Pause proxy\n\n mapping(address => uint256) public wards; // auth\n mapping(address => uint256) public sum; // per-address balance\n\n uint256 public Sum; // total balance\n uint256 public min; // minimum activation threshold [wad]\n EndLike public end; // cage module\n uint256 public live; // active flag\n\n event Fire();\n event Join(address indexed usr, uint256 wad);\n event File(bytes32 indexed what, uint256 data);\n event File(bytes32 indexed what, address data);\n event Rely(address indexed usr);\n event Deny(address indexed usr);\n event DenyProxy(address indexed base, address indexed pause);\n\n constructor(address gem_, address end_, address proxy_, uint256 min_) public {\n gem = GemLike(gem_);\n end = EndLike(end_);\n proxy = proxy_;\n min = min_;\n live = 1;\n\n wards[msg.sender] = 1;\n emit Rely(msg.sender);\n }\n\n function revokesGovernanceAccess() external view returns (bool ret) {\n ret = proxy != address(0);\n }\n\n // -- math --\n function add(uint256 x, uint256 y) internal pure returns (uint256 z) {\n z = x + y;\n require(z >= x);\n }\n\n // --- Auth ---\n function rely(address usr) external auth {\n wards[usr] = 1;\n\n emit Rely(usr);\n }\n\n function deny(address usr) external auth {\n wards[usr] = 0;\n\n emit Deny(usr);\n }\n modifier auth {\n require(wards[msg.sender] == 1, \"ESM/not-authorized\");\n _;\n }\n\n // -- admin --\n function file(bytes32 what, uint256 data) external auth {\n if (what == \"min\") {\n require(data > WAD, \"ESM/min-too-small\");\n min = data;\n } else {\n revert(\"ESM/file-unrecognized-param\");\n }\n\n emit File(what, data);\n }\n\n function file(bytes32 what, address data) external auth {\n if (what == \"end\") {\n end = EndLike(data);\n } else {\n revert(\"ESM/file-unrecognized-param\");\n }\n\n emit File(what, data);\n }\n\n function cage() external auth {\n live = 0;\n }\n\n function fire() external {\n require(live == 1, \"ESM/permanently-disabled\");\n require(Sum >= min, \"ESM/min-not-reached\");\n\n if (proxy != address(0)) {\n DenyLike(end.vat()).deny(proxy);\n }\n end.cage();\n\n emit Fire();\n }\n\n function denyProxy(address target) external {\n require(live == 1, \"ESM/permanently-disabled\");\n require(Sum >= min, \"ESM/min-not-reached\");\n\n DenyLike(target).deny(proxy);\n emit DenyProxy(target, proxy);\n }\n\n function join(uint256 wad) external {\n require(live == 1, \"ESM/permanently-disabled\");\n require(end.live() == 1, \"ESM/system-already-shutdown\");\n\n sum[msg.sender] = add(sum[msg.sender], wad);\n Sum = add(Sum, wad);\n\n require(gem.transferFrom(msg.sender, address(this), wad), \"ESM/transfer-failed\");\n emit Join(msg.sender, wad);\n }\n\n function burn() external {\n gem.burn(gem.balanceOf(address(this)));\n }\n}" }, "source_sha256": { "0x09e05ff6142f2f9de8b6b65855a1d56b6cfe4c58.sol": "4267c9320344090b48501508c25e477541d7e7efbc22a7d0846520b87a709851" }, "abi": [ { "inputs": [ { "internalType": "address", "name": "gem_", "type": "address" }, { "internalType": "address", "name": "end_", "type": "address" }, { "internalType": "address", "name": "proxy_", "type": "address" }, { "internalType": "uint256", "name": "min_", "type": "uint256" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "usr", "type": "address" } ], "name": "Deny", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "base", "type": "address" }, { "indexed": true, "internalType": "address", "name": "pause", "type": "address" } ], "name": "DenyProxy", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "what", "type": "bytes32" }, { "indexed": false, "internalType": "uint256", "name": "data", "type": "uint256" } ], "name": "File", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "what", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "data", "type": "address" } ], "name": "File", "type": "event" }, { "anonymous": false, "inputs": [], "name": "Fire", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "usr", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "wad", "type": "uint256" } ], "name": "Join", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "usr", "type": "address" } ], "name": "Rely", "type": "event" }, { "inputs": [], "name": "Sum", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "burn", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "cage", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "usr", "type": "address" } ], "name": "deny", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "target", "type": "address" } ], "name": "denyProxy", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "end", "outputs": [ { "internalType": "contract EndLike", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "what", "type": "bytes32" }, { "internalType": "uint256", "name": "data", "type": "uint256" } ], "name": "file", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "what", "type": "bytes32" }, { "internalType": "address", "name": "data", "type": "address" } ], "name": "file", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "fire", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "gem", "outputs": [ { "internalType": "contract GemLike", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "wad", "type": "uint256" } ], "name": "join", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "live", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "min", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "proxy", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "usr", "type": "address" } ], "name": "rely", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "revokesGovernanceAccess", "outputs": [ { "internalType": "bool", "name": "ret", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "sum", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "wards", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "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" }