use checksumed addresses

Author: Amxx

contracts/crosschain/axelar/AxelarGatewayDestination.sol

@@ -3,7 +3,6 @@
 pragma solidity ^0.8.27;
 
 import {AxelarExecutable} from "@axelar-network/axelar-gmp-sdk-solidity/contracts/executable/AxelarExecutable.sol";
-import {Strings} from "@openzeppelin/contracts/utils/Strings.sol";
 import {StringsUnreleased} from "../../utils/Strings.sol";
 import {CAIP2} from "../../utils/CAIP-2.sol";
 import {CAIP10} from "../../utils/CAIP-10.sol";
@@ -12,8 +11,8 @@ import {IGatewayDestinationPassive} from "../interfaces/IGatewayDestinationPassi
 import {IGatewayReceiver} from "../interfaces/IGatewayReceiver.sol";
 
 abstract contract AxelarGatewayDestination is IGatewayDestinationPassive, AxelarGatewayBase, AxelarExecutable {
-    using Strings for address;
-    using Strings for string;
+    using StringsUnreleased for address;
+    using StringsUnreleased for string;
 
     /// @dev Passive mode
     function validateReceivedMessage(
@@ -29,7 +28,7 @@ abstract contract AxelarGatewayDestination is IGatewayDestinationPassive, Axelar
         // Rebuild expected package
         bytes memory adapterPayload = abi.encode(
             sender,
-            msg.sender.toHexString(), // receiver
+            msg.sender.toChecksumHexString(), // receiver
             payload,
             attributes
         );
@@ -71,7 +70,7 @@ abstract contract AxelarGatewayDestination is IGatewayDestinationPassive, Axelar
         require(getRemoteGateway(source).equal(remoteAccount), "Invalid origin gateway");
 
         // Active mode
-        IGatewayReceiver(StringsUnreleased.parseAddress(receiver)).receiveMessage(
+        IGatewayReceiver(receiver.parseAddress()).receiveMessage(
             address(0), // not needed in active mode
             new bytes(0), // not needed in active mode
             source,

contracts/crosschain/axelar/AxelarGatewaySource.sol

@@ -4,12 +4,12 @@ pragma solidity ^0.8.27;
 
 import {AxelarGatewayBase} from "./AxelarGatewayBase.sol";
 import {IGatewaySource} from "../interfaces/IGatewaySource.sol";
-import {Strings} from "@openzeppelin/contracts/utils/Strings.sol";
+import {StringsUnreleased} from "../../utils/Strings.sol";
 import {CAIP2} from "../../utils/CAIP-2.sol";
 import {CAIP10} from "../../utils/CAIP-10.sol";
 
 abstract contract AxelarGatewaySource is IGatewaySource, AxelarGatewayBase {
-    using Strings for address;
+    using StringsUnreleased for address;
 
     function supportsAttribute(bytes4 /*selector*/) public view virtual returns (bool) {
         return false;
@@ -29,7 +29,7 @@ abstract contract AxelarGatewaySource is IGatewaySource, AxelarGatewayBase {
         }
 
         // Create the package
-        string memory sender = msg.sender.toHexString();
+        string memory sender = msg.sender.toChecksumHexString();
         bytes memory adapterPayload = abi.encode(sender, receiver, payload, attributes);
 
         // Emit event

contracts/crosschain/mocks/AxelarGatewayMock.sol

@@ -5,11 +5,11 @@ pragma solidity ^0.8.27;
 import {IAxelarGateway} from "@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IAxelarGateway.sol";
 import {IAxelarExecutable} from "@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IAxelarExecutable.sol";
 import {BitMaps} from "@openzeppelin/contracts/utils/structs/BitMaps.sol";
-import {Strings} from "@openzeppelin/contracts/utils/Strings.sol";
 import {StringsUnreleased} from "../../utils/Strings.sol";
 
 contract AxelarGatewayMock {
-    using Strings for address;
+    using StringsUnreleased for address;
+    using StringsUnreleased for string;
     using BitMaps for BitMaps.BitMap;
 
     bool private activeMode;
@@ -42,7 +42,12 @@ contract AxelarGatewayMock {
         );
 
         bytes32 commandId = keccak256(
-            abi.encode(destinationChain, msg.sender.toHexString(), destinationContractAddress, keccak256(payload))
+            abi.encode(
+                destinationChain,
+                msg.sender.toChecksumHexString(),
+                destinationContractAddress,
+                keccak256(payload)
+            )
         );
 
         require(!pendingCommandIds.get(uint256(commandId)));
@@ -53,8 +58,8 @@ contract AxelarGatewayMock {
         if (activeMode) {
             // NOTE:
             // - source chain and destination chain are the same in this mock
-            address target = StringsUnreleased.parseAddress(destinationContractAddress);
-            IAxelarExecutable(target).execute(commandId, destinationChain, msg.sender.toHexString(), payload);
+            address target = destinationContractAddress.parseAddress();
+            IAxelarExecutable(target).execute(commandId, destinationChain, msg.sender.toChecksumHexString(), payload);
         }
     }
 
@@ -70,7 +75,8 @@ contract AxelarGatewayMock {
             emit IAxelarGateway.ContractCallExecuted(commandId);
 
             return
-                commandId == keccak256(abi.encode(sourceChain, sourceAddress, msg.sender.toHexString(), payloadHash));
+                commandId ==
+                keccak256(abi.encode(sourceChain, sourceAddress, msg.sender.toChecksumHexString(), payloadHash));
         } else return false;
     }
 }

contracts/utils/CAIP-10.sol

@@ -3,7 +3,7 @@
 pragma solidity ^0.8.0;
 
 import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
-import {Strings} from "@openzeppelin/contracts/utils/Strings.sol";
+import {StringsUnreleased} from "./Strings.sol";
 import {Bytes} from "./Bytes.sol";
 import {CAIP2} from "./CAIP-2.sol";
 
@@ -12,11 +12,11 @@ import {CAIP2} from "./CAIP-2.sol";
 // account_address:   [-.%a-zA-Z0-9]{1,128}
 library CAIP10 {
     using SafeCast for uint256;
-    using Strings for address;
+    using StringsUnreleased for address;
     using Bytes for bytes;
 
     function local(address account) internal view returns (string memory) {
-        return format(CAIP2.local(), account.toHexString());
+        return format(CAIP2.local(), account.toChecksumHexString());
     }
 
     function format(string memory caip2, string memory account) internal pure returns (string memory) {

test/crosschain/axelar/AxelarGateway.test.js

@@ -3,7 +3,7 @@ const { expect } = require('chai');
 const { loadFixture } = require('@nomicfoundation/hardhat-network-helpers');
 const { anyValue } = require('@nomicfoundation/hardhat-chai-matchers/withArgs');
 
-const getAddress = account => (account.target ?? account.address ?? account).toLowerCase();
+const getAddress = account => ethers.getAddress(account.target ?? account.address ?? account);
 
 async function fixture() {
   const [owner, sender, ...accounts] = await ethers.getSigners();

test/crosschain/utils/CAIP.test.js

@@ -37,7 +37,7 @@ describe('CAIP utilities', function () {
 
     it(`local(${account})`, async function () {
       // lowercase encoding for now
-      expect(await this.caip10.$local(ethers.Typed.address(account))).to.equal(format('eip155', this.chainId, account.toLowerCase()));
+      expect(await this.caip10.$local(ethers.Typed.address(account))).to.equal(format('eip155', this.chainId, account));
     });
 
     for (const { account, caip2, caip10 } of Object.values(CHAINS))