dev

contracts/SmartRoute/DODONFTApprove.sol

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+/*
+
+    Copyright 2021 DODO ZOO.
+    SPDX-License-Identifier: Apache-2.0
+
+*/
+
+pragma solidity 0.6.9;
+
+import {IERC721} from "../intf/IERC721.sol";
+import {IERC1155} from "../intf/IERC1155.sol";
+import {InitializableOwnable} from "../lib/InitializableOwnable.sol";
+
+/**
+ * @title DODONFTApprove
+ * @author DODO Breeder
+ *
+ * @notice Handle NFT authorizations in DODO platform
+ */
+contract DODONFTApprove is InitializableOwnable {
+    
+    // ============ Storage ============
+    uint256 private constant _TIMELOCK_DURATION_ = 3 days;
+    mapping (address => bool) public _IS_ALLOWED_PROXY_;
+    uint256 public _TIMELOCK_;
+    address public _PENDING_ADD_DODO_PROXY_;
+
+    // ============ Events ============
+    event AddDODOProxy(address dodoProxy);
+
+    // ============ Modifiers ============
+    modifier notLocked() {
+        require(
+            _TIMELOCK_ <= block.timestamp,
+            "SetProxy is timelocked"
+        );
+        _;
+    }
+
+    function init(address owner, address[] memory proxies) external {
+        initOwner(owner);
+        for(uint i = 0; i < proxies.length; i++) 
+            _IS_ALLOWED_PROXY_[proxies[i]] = true;
+    }
+
+    function unlockAddProxy(address newDodoProxy) public onlyOwner {
+        _TIMELOCK_ = block.timestamp + _TIMELOCK_DURATION_;
+        _PENDING_ADD_DODO_PROXY_ = newDodoProxy;
+    }
+
+    function lockAddProxy() public onlyOwner {
+       _PENDING_ADD_DODO_PROXY_ = address(0);
+       _TIMELOCK_ = 0;
+    }
+
+
+    function addDODOProxy() external onlyOwner notLocked() {
+        _IS_ALLOWED_PROXY_[_PENDING_ADD_DODO_PROXY_] = true;
+        lockAddProxy();
+        emit AddDODOProxy(_PENDING_ADD_DODO_PROXY_);
+    }
+
+    function removeDODOProxy (address oldDodoProxy) public onlyOwner {
+        _IS_ALLOWED_PROXY_[oldDodoProxy] = false;
+    }
+
+
+    function claimERC721(
+        address nftContract,
+        address who,
+        address dest,
+        uint256 tokenId
+    ) external {
+        require(_IS_ALLOWED_PROXY_[msg.sender], "DODONFTApprove:Access restricted");
+        IERC721(nftContract).safeTransferFrom(who, dest, tokenId);
+    }
+
+    function claimERC1155(
+        address nftContract,
+        address who,
+        address dest,
+        uint256 tokenId,
+        uint256 amount
+    ) external {
+        require(_IS_ALLOWED_PROXY_[msg.sender], "DODONFTApprove:Access restricted");
+        IERC1155(nftContract).safeTransferFrom(who, dest, tokenId, amount, "");
+    } 
+
+    function claimERC1155Batch(
+        address nftContract,
+        address who,
+        address dest,
+        uint256[] memory tokenIds,
+        uint256[] memory amounts
+    ) external {
+        require(_IS_ALLOWED_PROXY_[msg.sender], "DODONFTApprove:Access restricted");
+        IERC1155(nftContract).safeBatchTransferFrom(who, dest, tokenIds, amounts, "");
+    } 
+
+    function isAllowedProxy(address _proxy) external view returns (bool) {
+        return _IS_ALLOWED_PROXY_[_proxy];
+    }
+}