FastLane-Labs · ephess · Jan 8, 2024 · Jan 8, 2024 · Jan 8, 2024
diff --git a/contracts/auction-handler/FastLaneAuctionHandler.sol b/contracts/auction-handler/FastLaneAuctionHandler.sol
diff --git a/contracts/interfaces/IPaymentProcessor.sol b/contracts/interfaces/IPaymentProcessor.sol
@@ -9,4 +9,4 @@ interface IPaymentProcessor {
         uint256 totalAmount,
         bytes calldata data
     ) external;
-}
+}
diff --git a/contracts/interfaces/IWMatic.sol b/contracts/interfaces/IWMatic.sol
@@ -6,16 +6,15 @@ interface WMATIC {
     event Transfer(address indexed src, address indexed dst, uint256 wad);
     event Withdrawal(address indexed src, uint256 wad);
 
-    function allowance(address, address) view external returns (uint256);
+    function allowance(address, address) external view returns (uint256);
     function approve(address guy, uint256 wad) external returns (bool);
-    function balanceOf(address) view external returns (uint256);
-    function decimals() view external returns (uint8);
-    function deposit() payable external;
-    function name() view external returns (string memory);
-    function symbol() view external returns (string memory);
-    function totalSupply() view external returns (uint256);
+    function balanceOf(address) external view returns (uint256);
+    function decimals() external view returns (uint8);
+    function deposit() external payable;
+    function name() external view returns (string memory);
+    function symbol() external view returns (string memory);
+    function totalSupply() external view returns (uint256);
     function transfer(address dst, uint256 wad) external returns (bool);
     function transferFrom(address src, address dst, uint256 wad) external returns (bool);
     function withdraw(uint256 wad) external;
 }
-
diff --git a/contracts/searcher-direct/FastLaneSearcherDirect.sol b/contracts/searcher-direct/FastLaneSearcherDirect.sol
@@ -1,11 +1,10 @@
 //SPDX-License-Identifier: Unlicensed
 pragma solidity ^0.8.16;
 
-import { ReentrancyGuard } from "solmate/utils/ReentrancyGuard.sol";
+import {ReentrancyGuard} from "solmate/utils/ReentrancyGuard.sol";
 import "openzeppelin-contracts/contracts/utils/Strings.sol";
 
 abstract contract FastLaneSearcherDirectContract is ReentrancyGuard {
-
     address public owner;
     address payable private PFLAuction;
 
@@ -25,30 +24,36 @@ abstract contract FastLaneSearcherDirectContract is ReentrancyGuard {
     // PFL will pass along the original msg.sender as _sender for the searcher to do additional checks
     // Do NOT forget `onlyRelayer` and `checkFastLaneEOA(_sender);` or ANYONE will be able to call your contract with arbitrary calldata
     function fastLaneCall(
-            address _sender, // Relay will always set this to msg.sender that called it. Ideally you (owner) or an approvedEOA.
-            uint256 _bidAmount,
-            bytes calldata _searcherCallData // contains func selector and calldata for your MEV transaction ie: abi.encodeWithSignature("doStuff(address,uint256)", 0xF00, 1212);
+        address _sender, // Relay will always set this to msg.sender that called it. Ideally you (owner) or an approvedEOA.
+        uint256 _bidAmount,
+        bytes calldata _searcherCallData // contains func selector and calldata for your MEV transaction ie: abi.encodeWithSignature("doStuff(address,uint256)", 0xF00, 1212);
     ) external payable onlyRelayer nonReentrant returns (bool, bytes memory) {
-
-        // Make sure it's your own EOA that's calling your contract 
+        // Make sure it's your own EOA that's calling your contract
         checkFastLaneEOA(_sender);
 
         // Execute the searcher's intended function
         (bool success, bytes memory returnedData) = address(this).call(_searcherCallData);
-
-        // If the call didn't turn out the way you wanted, revert either here or inside your MEV function itself
+
         if (!success) {
+            // If the call didn't turn out the way you wanted, revert either here or inside your MEV function itself
             return (false, returnedData);
         }
 
         // Balance check then Repay PFL at the end
         require(
-            (address(this).balance >= _bidAmount), 
-            string(abi.encodePacked("SearcherInsufficientFunds  ", Strings.toString(_bidAmount), " ", Strings.toString(address(this).balance)))
+            (address(this).balance >= _bidAmount),
+            string(
+                abi.encodePacked(
+                    "SearcherInsufficientFunds  ",
+                    Strings.toString(_bidAmount),
+                    " ",
+                    Strings.toString(address(this).balance)
+                )
+            )
         );
 
         safeTransferETH(PFLAuction, _bidAmount);
-        
+
         // /!\ Important to return success true or relay will revert.
         // In case of success == false, `returnedData` will be used as revert message that can be decoded with `.humanizeError()`
         return (success, returnedData);
@@ -83,7 +88,7 @@ abstract contract FastLaneSearcherDirectContract is ReentrancyGuard {
         approvedEOAs[_eoaAddress] = false;
     }
 
-    function checkFastLaneEOA(address _eoaAddress) view internal {
+    function checkFastLaneEOA(address _eoaAddress) internal view {
         require(approvedEOAs[_eoaAddress] || _eoaAddress == owner, "SenderEOANotApproved");
     }
 
@@ -92,34 +97,32 @@ abstract contract FastLaneSearcherDirectContract is ReentrancyGuard {
     }
 
     // Be aware with a fallback fn that:
-    // `address(this).call(_searcherCallData);` 
-    // Will hit this if _searcherCallData function is not implemented. 
+    // `address(this).call(_searcherCallData);`
+    // Will hit this if _searcherCallData function is not implemented.
     // And success will be true.
-    fallback() external payable {
-
-    }
+    fallback() external payable {}
     receive() external payable {}
 
-    modifier onlyRelayer {
-          if (!isTrustedForwarder(msg.sender)) revert("InvalidPermissions");
-          _;
-     }
+    modifier onlyRelayer() {
+        if (!isTrustedForwarder(msg.sender)) revert("InvalidPermissions");
+        _;
+    }
 }
 
 contract SearcherContractExample is FastLaneSearcherDirectContract {
-    // Your own MEV contract / functions here 
+    // Your own MEV contract / functions here
     // NOTE: its security checks must be compatible w/ calls from the FastLane Auction Contract
 
     address public anAddress; // just a var to change for the placeholder MEV function
     uint256 public anAmount; // another var to change for the placeholder MEV function
 
     function doStuff(address _anAddress, uint256 _anAmount) public payable returns (bool) {
         // NOTE: this function can't be external as the FastLaneCall func will call it internally
-        if (msg.sender != address(this)) { 
+        if (msg.sender != address(this)) {
             // NOTE: msg.sender becomes address(this) if using call from inside contract per above example in `fasfastLaneCall`
             require(approvedEOAs[msg.sender], "SenderEOANotApproved");
         }
-        
+
         // Do MEV stuff here
         // placeholder
         anAddress = _anAddress;
@@ -129,13 +132,13 @@ contract SearcherContractExample is FastLaneSearcherDirectContract {
     }
 
     function doFail() public payable {
-        if (msg.sender != address(this)) { 
+        if (msg.sender != address(this)) {
             // NOTE: msg.sender becomes address(this) if using call from inside contract per above example in `fasfastLaneCall`
             require(approvedEOAs[msg.sender], "SenderEOANotApproved");
         }
         // Will cause Error(string) of: 0x08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000f4641494c5f4f4e5f505552504f53450000000000000000000000000000000000
         // to bubble up to the relay contract.
         // Use the read function `FastLaneRelay.humanizeError(bytes error)` to get a human readable version of an error should your searcher contract fail on a require.
-        require(false,"FAIL_ON_PURPOSE");
+        require(false, "FAIL_ON_PURPOSE");
     }
-}
+}
diff --git a/contracts/searcher-proxy/FastLaneSearcherProxy.sol b/contracts/searcher-proxy/FastLaneSearcherProxy.sol
@@ -1,11 +1,10 @@
 //SPDX-License-Identifier: Unlicensed
 pragma solidity ^0.8.16;
 
-import { ReentrancyGuard } from "solmate/utils/ReentrancyGuard.sol";
+import {ReentrancyGuard} from "solmate/utils/ReentrancyGuard.sol";
 import "openzeppelin-contracts/contracts/utils/Strings.sol";
 
 contract FastLaneSearcherProxyContract is ReentrancyGuard {
-
     address public owner;
     address payable private PFLAuction;
     address payable private searcherContract;
@@ -27,32 +26,38 @@ contract FastLaneSearcherProxyContract is ReentrancyGuard {
     // PFL will pass along the original msg.sender as _sender for the searcher to do additional checks
     // Do NOT forget `onlyRelayer` and `checkFastLaneEOA(_sender);` or ANYONE will be able to call your contract with arbitrary calldata
     function fastLaneCall(
-            address _sender, // Relay will always set this to msg.sender that called it. Ideally you (owner) or an approvedEOA.
-            uint256 _bidAmount,
-            bytes calldata _searcherCallData // contains func selector and calldata for your MEV transaction ie: abi.encodeWithSignature("doStuff(address,uint256)", 0xF00, 1212);
+        address _sender, // Relay will always set this to msg.sender that called it. Ideally you (owner) or an approvedEOA.
+        uint256 _bidAmount,
+        bytes calldata _searcherCallData // contains func selector and calldata for your MEV transaction ie: abi.encodeWithSignature("doStuff(address,uint256)", 0xF00, 1212);
     ) external payable onlyRelayer nonReentrant returns (bool, bytes memory) {
-
-        // Make sure it's your own EOA that's calling your contract 
+        // Make sure it's your own EOA that's calling your contract
         checkFastLaneEOA(_sender);
 
         // Execute the searcher's intended function
         // /!\ Don't forget to whitelist `searcherContract` called function
         // to allow this contract.
         (bool success, bytes memory returnedData) = searcherContract.call(_searcherCallData);
-
-        // If the call didn't turn out the way you wanted, revert either here or inside your MEV function itself
+
         if (!success) {
+            // If the call didn't turn out the way you wanted, revert either here or inside your MEV function itself
             return (false, returnedData);
         }
 
         // Balance check then pay FastLane Auction Handler contract at the end
         require(
-            (address(this).balance >= _bidAmount), 
-            string(abi.encodePacked("SearcherInsufficientFunds  ", Strings.toString(_bidAmount), " ", Strings.toString(address(this).balance)))
+            (address(this).balance >= _bidAmount),
+            string(
+                abi.encodePacked(
+                    "SearcherInsufficientFunds  ",
+                    Strings.toString(_bidAmount),
+                    " ",
+                    Strings.toString(address(this).balance)
+                )
+            )
         );
 
         safeTransferETH(PFLAuction, _bidAmount);
-        
+
         // /!\ Important to return success true or relay will revert.
         // In case of success == false, `returnedData` will be used as revert message that can be decoded with `.humanizeError()`
         return (success, returnedData);
@@ -92,7 +97,7 @@ contract FastLaneSearcherProxyContract is ReentrancyGuard {
         approvedEOAs[_eoaAddress] = false;
     }
 
-    function checkFastLaneEOA(address _eoaAddress) view internal {
+    function checkFastLaneEOA(address _eoaAddress) internal view {
         require(approvedEOAs[_eoaAddress] || _eoaAddress == owner, "SenderEOANotApproved");
     }
 
@@ -101,16 +106,14 @@ contract FastLaneSearcherProxyContract is ReentrancyGuard {
     }
 
     // Be aware with a fallback fn that:
-    // `address(this).call(_searcherCallData);` 
-    // Will hit this if _searcherCallData function is not implemented. 
+    // `address(this).call(_searcherCallData);`
+    // Will hit this if _searcherCallData function is not implemented.
     // And success will be true.
-    fallback() external payable {
-
-    }
+    fallback() external payable {}
     receive() external payable {}
 
-    modifier onlyRelayer {
-          if (!isTrustedForwarder(msg.sender)) revert("InvalidPermissions");
-          _;
-     }
-}
+    modifier onlyRelayer() {
+        if (!isTrustedForwarder(msg.sender)) revert("InvalidPermissions");
+        _;
+    }
+}
diff --git a/script/EOADeploy.s.sol b/script/EOADeploy.s.sol
@@ -7,21 +7,17 @@ import "forge-std/Script.sol";
 import {FastLaneAuctionHandler} from "../contracts/auction-handler/FastLaneAuctionHandler.sol";
 
 contract Deploy is Script {
-
-
     address public fastlane;
 
     mapping(uint256 => address) public gelatoOpsAddresses;
     mapping(uint256 => address) public wrappedNativeAddresses;
 
-
     function getArgs() public view returns (address initial_bid_token, address ops) {
         ops = gelatoOpsAddresses[block.chainid];
         initial_bid_token = wrappedNativeAddresses[block.chainid];
     }
 
     function run() public {
-
         gelatoOpsAddresses[1] = 0xB3f5503f93d5Ef84b06993a1975B9D21B962892F;
         gelatoOpsAddresses[137] = 0x527a819db1eb0e34426297b03bae11F2f8B3A19E;
         gelatoOpsAddresses[80001] = 0xB3f5503f93d5Ef84b06993a1975B9D21B962892F;
@@ -32,10 +28,8 @@ contract Deploy is Script {
         wrappedNativeAddresses[80001] = 0x9c3C9283D3e44854697Cd22D3Faa240Cfb032889;
         wrappedNativeAddresses[31337] = 0x9c3C9283D3e44854697Cd22D3Faa240Cfb032889;
 
-
         (address initial_bid_token, address ops) = getArgs();
 
-
         require(ops != address(0), "O(o)ps");
         require(initial_bid_token != address(0), "Wrapped");
 
@@ -48,5 +42,4 @@ contract Deploy is Script {
 
         console2.log(fastlane);
     }
-
-}
+}