snapshot

contracts/lib/OperatorSystem.sol

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+/*
+
+    Copyright 2020 DODO ZOO.
+    SPDX-License-Identifier: Apache-2.0
+
+*/
+
+pragma solidity 0.6.9;
+pragma experimental ABIEncoderV2;
+
+import {InitializableOwnable} from "./InitializableOwnable.sol";
+
+contract OperatorSystem is InitializableOwnable {
+    mapping(address => bool) internal _global_operator_;
+    mapping(address => mapping(address => bool)) internal _operator_; // user=>operator=>isValid
+
+    function isValidOperator(address user, address operator) external view returns (bool) {
+        return user == operator || _global_operator_[operator] || _operator_[user][operator];
+    }
+
+    function addGlobalOperator(address operator) external onlyOwner {
+        _global_operator_[operator] = true;
+    }
+
+    function removeGlobalOperator(address operator) external onlyOwner {
+        _global_operator_[operator] = false;
+    }
+
+    function addOperator(address operator) external {
+        _operator_[msg.sender][operator] = true;
+    }
+
+    function removeOperator(address operator) external {
+        _operator_[msg.sender][operator] = false;
+    }
+}