EIP-7702 Integration

Makefile

@@ -0,0 +1,4 @@
+.PHONY: run
+
+run:
+	dotnet run --project Thirdweb.Console

Thirdweb.Console/Program.Types.cs

@@ -0,0 +1,16 @@
+using System.Numerics;
+using Nethereum.ABI.FunctionEncoding.Attributes;
+
+namespace Thirdweb.Console;
+
+public class Call
+{
+    [Parameter("bytes", "data", 1)]
+    public required byte[] Data { get; set; }
+
+    [Parameter("address", "to", 2)]
+    public required string To { get; set; }
+
+    [Parameter("uint256", "value", 3)]
+    public required BigInteger Value { get; set; }
+}

Thirdweb.Console/Program.cs

@@ -91,6 +91,92 @@
 
 #endregion
 
+#region EIP-7702
+
+// // Chain and contract addresses
+// var chainWith7702 = 911867;
+// var erc20ContractAddress = "0xAA462a5BE0fc5214507FDB4fB2474a7d5c69065b"; // Fake ERC20
+// var delegationContractAddress = "0x654F42b74885EE6803F403f077bc0409f1066c58"; // BatchCallDelegation
+
+// // Initialize contracts normally
+// var erc20Contract = await ThirdwebContract.Create(client: client, address: erc20ContractAddress, chain: chainWith7702);
+// var delegationContract = await ThirdwebContract.Create(client: client, address: delegationContractAddress, chain: chainWith7702);
+
+// // Initialize a (to-be) 7702 EOA
+// var eoaWallet = await PrivateKeyWallet.Generate(client);
+// var eoaWalletAddress = await eoaWallet.GetAddress();
+// Console.WriteLine($"EOA address: {eoaWalletAddress}");
+
+// // Initialize another wallet, the "executor" that will hit the eoa's (to-be) execute function
+// var executorWallet = await PrivateKeyWallet.Generate(client);
+// var executorWalletAddress = await executorWallet.GetAddress();
+// Console.WriteLine($"Executor address: {executorWalletAddress}");
+
+// // Fund the executor wallet
+// var fundingWallet = await PrivateKeyWallet.Create(client, privateKey);
+// var fundingHash = (await fundingWallet.Transfer(chainWith7702, executorWalletAddress, BigInteger.Parse("0.001".ToWei()))).TransactionHash;
+// Console.WriteLine($"Funded Executor Wallet: {fundingHash}");
+
+// // Sign the authorization to make it point to the delegation contract
+// var authorization = await eoaWallet.SignAuthorization(chainId: chainWith7702, contractAddress: delegationContractAddress, willSelfExecute: false);
+// Console.WriteLine($"Authorization: {JsonConvert.SerializeObject(authorization, Formatting.Indented)}");
+
+// // Execute the delegation
+// var tx = await ThirdwebTransaction.Create(executorWallet, new ThirdwebTransactionInput(chainId: chainWith7702, to: executorWalletAddress, authorization: authorization));
+// var hash = (await ThirdwebTransaction.SendAndWaitForTransactionReceipt(tx)).TransactionHash;
+// Console.WriteLine($"Authorization execution transaction hash: {hash}");
+
+// // Prove that code has been deployed to the eoa
+// var rpc = ThirdwebRPC.GetRpcInstance(client, chainWith7702);
+// var code = await rpc.SendRequestAsync<string>("eth_getCode", eoaWalletAddress, "latest");
+// Console.WriteLine($"EOA code: {code}");
+
+// // Log erc20 balance of executor before the claim
+// var executorBalanceBefore = await erc20Contract.ERC20_BalanceOf(executorWalletAddress);
+// Console.WriteLine($"Executor balance before: {executorBalanceBefore}");
+
+// // Prepare the claim call
+// var claimCallData = erc20Contract.CreateCallData(
+//     "claim",
+//     new object[]
+//     {
+//         executorWalletAddress, // receiver
+//         100, // quantity
+//         Constants.NATIVE_TOKEN_ADDRESS, // currency
+//         0, // pricePerToken
+//         new object[] { Array.Empty<byte>(), BigInteger.Zero, BigInteger.Zero, Constants.ADDRESS_ZERO }, // allowlistProof
+//         Array.Empty<byte>() // data
+//     }
+// );
+
+// // Embed the claim call in the execute call
+// var executeCallData = delegationContract.CreateCallData(
+//     method: "execute",
+//     parameters: new object[]
+//     {
+//         new List<Thirdweb.Console.Call>
+//         {
+//             new()
+//             {
+//                 Data = claimCallData.HexToBytes(),
+//                 To = erc20ContractAddress,
+//                 Value = BigInteger.Zero
+//             }
+//         }
+//     }
+// );
+
+// // Execute from the executor wallet targeting the eoa which is pointing to the delegation contract
+// var tx2 = await ThirdwebTransaction.Create(executorWallet, new ThirdwebTransactionInput(chainId: chainWith7702, to: eoaWalletAddress, data: executeCallData));
+// var hash2 = (await ThirdwebTransaction.SendAndWaitForTransactionReceipt(tx2)).TransactionHash;
+// Console.WriteLine($"Token claim transaction hash: {hash2}");
+
+// // Log erc20 balance of executor after the claim
+// var executorBalanceAfter = await erc20Contract.ERC20_BalanceOf(executorWalletAddress);
+// Console.WriteLine($"Executor balance after: {executorBalanceAfter}");
+
+#endregion
+
 #region Smart Ecosystem Wallet
 
 // var eco = await EcosystemWallet.Create(client: client, ecosystemId: "ecosystem.the-bonfire", authProvider: AuthProvider.Twitch);

Thirdweb.Tests/Thirdweb.Contracts/Thirdweb.Contracts.Tests.cs

@@ -78,6 +78,14 @@ public async Task ReadTest_Tuple()
         Assert.Equal(0, result.ReturnValue2);
     }
 
+    [Fact(Timeout = 120000)]
+    public async Task ReadTest_4Bytes()
+    {
+        var contract = await this.GetContract();
+        var result = await ThirdwebContract.Read<string>(contract, "0x06fdde03");
+        Assert.Equal("Kitty DropERC20", result);
+    }
+
     [Fact(Timeout = 120000)]
     public async Task ReadTest_FullSig()
     {

Thirdweb.Tests/Thirdweb.Utils/Thirdweb.Utils.Tests.cs

@@ -866,4 +866,32 @@ public void PreprocessTypedDataJson_NestedLargeNumbers()
 
         Assert.Equal(expectedJObject, processedJObject);
     }
+
+    [Fact]
+    public void DecodeTransaction_1559WithAuthList()
+    {
+        var signedTxStr =
+            "0x04f8ca830de9fb8082011882031083025bee94ff5d95e5aa1b5af3f106079518228a92818737728080c0f85ef85c830de9fb94654f42b74885ee6803f403f077bc0409f1066c588080a0a5caed9b0c46657a452250a3279f45937940c87c45854aead6a902d99bc638f39faa58026c6b018d36b8935a42f2bcf68097c712c9f09ca014c70887678e08a980a027ecc69e66eb9e28cbe6edab10fc827fcb6d2a34cdcb89d8b6aabc6e35608692a0750d306b04a50a35de57bd6aca11f207a8dd404f9d92502ce6e3817e52f79a1c";
+        (var txInput, var signature) = Utils.DecodeTransaction(signedTxStr);
+        Assert.Equal("0xfF5D95e5aA1B5Af3F106079518228A9281873772", txInput.To);
+        Assert.Equal("0x", txInput.Data);
+        Assert.Equal(0, txInput.Value.Value);
+        Assert.NotNull(txInput.AuthorizationList);
+        _ = Assert.Single(txInput.AuthorizationList);
+        Assert.Equal("0x654F42b74885EE6803F403f077bc0409f1066c58", txInput.AuthorizationList[0].Address);
+        Assert.Equal("0xde9fb", txInput.AuthorizationList[0].ChainId);
+        Assert.Equal("0x0", txInput.AuthorizationList[0].Nonce);
+
+        (txInput, var signature2) = Utils.DecodeTransaction(signedTxStr.HexToBytes());
+        Assert.Equal("0xfF5D95e5aA1B5Af3F106079518228A9281873772", txInput.To);
+        Assert.Equal("0x", txInput.Data);
+        Assert.Equal(0, txInput.Value.Value);
+        Assert.NotNull(txInput.AuthorizationList);
+        _ = Assert.Single(txInput.AuthorizationList);
+        Assert.Equal("0x654F42b74885EE6803F403f077bc0409f1066c58", txInput.AuthorizationList[0].Address);
+        Assert.Equal("0xde9fb", txInput.AuthorizationList[0].ChainId);
+        Assert.Equal("0x0", txInput.AuthorizationList[0].Nonce);
+
+        Assert.Equal(signature, signature2);
+    }
 }

Thirdweb.Tests/Thirdweb.Wallets/Thirdweb.PrivateKeyWallet.Tests.cs

@@ -209,16 +209,36 @@ public async Task SignTypedDataV4_Typed_NullData()
     public async Task SignTransaction_Success()
     {
         var account = await this.GetAccount();
-        var transaction = new ThirdwebTransactionInput(421614)
-        {
-            From = await account.GetAddress(),
-            To = Constants.ADDRESS_ZERO,
-            // Value = new HexBigInteger(0),
-            Gas = new HexBigInteger(21000),
-            // Data = "0x",
-            Nonce = new HexBigInteger(99999999999),
-            GasPrice = new HexBigInteger(10000000000),
-        };
+        var transaction = new ThirdwebTransactionInput(
+            chainId: 421614,
+            from: await account.GetAddress(),
+            to: Constants.ADDRESS_ZERO,
+            value: 0,
+            gas: 21000,
+            data: "0x",
+            nonce: 99999999999,
+            gasPrice: 10000000000
+        );
+        var signature = await account.SignTransaction(transaction);
+        Assert.NotNull(signature);
+    }
+
+    [Fact(Timeout = 120000)]
+    public async Task SignTransaction_WithAuthorizationList_Success()
+    {
+        var account = await this.GetAccount();
+        var authorization = await account.SignAuthorization(421614, Constants.ADDRESS_ZERO, false);
+        var transaction = new ThirdwebTransactionInput(
+            chainId: 421614,
+            from: await account.GetAddress(),
+            to: Constants.ADDRESS_ZERO,
+            value: 0,
+            gas: 21000,
+            data: "0x",
+            nonce: 99999999999,
+            gasPrice: 10000000000,
+            authorization: authorization
+        );
         var signature = await account.SignTransaction(transaction);
         Assert.NotNull(signature);
     }
@@ -227,15 +247,7 @@ public async Task SignTransaction_Success()
     public async Task SignTransaction_NoFrom_Success()
     {
         var account = await this.GetAccount();
-        var transaction = new ThirdwebTransactionInput(421614)
-        {
-            To = Constants.ADDRESS_ZERO,
-            // Value = new HexBigInteger(0),
-            Gas = new HexBigInteger(21000),
-            Data = "0x",
-            Nonce = new HexBigInteger(99999999999),
-            GasPrice = new HexBigInteger(10000000000),
-        };
+        var transaction = new ThirdwebTransactionInput(chainId: 421614, to: Constants.ADDRESS_ZERO, value: 0, gas: 21000, data: "0x", nonce: 99999999999, gasPrice: 10000000000);
         var signature = await account.SignTransaction(transaction);
         Assert.NotNull(signature);
     }
@@ -469,4 +481,26 @@ public async Task Export_ReturnsPrivateKey()
         Assert.NotNull(privateKey);
         Assert.Equal(privateKey, await wallet.Export());
     }
+
+    [Fact(Timeout = 120000)]
+    public async Task SignAuthorization_SelfExecution()
+    {
+        var wallet = await PrivateKeyWallet.Generate(this.Client);
+        var chainId = 911867;
+        var targetAddress = "0x654F42b74885EE6803F403f077bc0409f1066c58";
+
+        var currentNonce = await wallet.GetTransactionCount(chainId);
+
+        var authorization = await wallet.SignAuthorization(chainId: chainId, contractAddress: targetAddress, willSelfExecute: false);
+
+        Assert.Equal(chainId.NumberToHex(), authorization.ChainId);
+        Assert.Equal(targetAddress, authorization.Address);
+        Assert.True(authorization.Nonce.HexToNumber() == currentNonce);
+
+        authorization = await wallet.SignAuthorization(chainId: chainId, contractAddress: targetAddress, willSelfExecute: true);
+
+        Assert.Equal(chainId.NumberToHex(), authorization.ChainId);
+        Assert.Equal(targetAddress, authorization.Address);
+        Assert.True(authorization.Nonce.HexToNumber() == currentNonce + 1);
+    }
 }

Thirdweb.Tests/Thirdweb.Wallets/Thirdweb.SmartWallet.Tests.cs

@@ -364,6 +364,18 @@ public async Task SwitchNetwork_NonZkToZk_Success()
         Assert.NotEqual(addy1, addy2);
     }
 
+    [Fact(Timeout = 120000)]
+    public async Task SignAuthorization_WithPrivateKeyWallet_Success()
+    {
+        var smartWallet = await SmartWallet.Create(personalWallet: await PrivateKeyWallet.Generate(this.Client), chainId: 421614);
+        var smartWalletSigner = await smartWallet.GetPersonalWallet();
+        var signature1 = await smartWallet.SignAuthorization(chainId: 421614, contractAddress: Constants.ADDRESS_ZERO, willSelfExecute: true);
+        var signature2 = await smartWalletSigner.SignAuthorization(chainId: 421614, contractAddress: Constants.ADDRESS_ZERO, willSelfExecute: true);
+        Assert.Equal(signature1.ChainId, signature2.ChainId);
+        Assert.Equal(signature1.Address, signature2.Address);
+        Assert.Equal(signature1.Nonce, signature2.Nonce);
+    }
+
     // [Fact(Timeout = 120000)]
     // public async Task MultiChainTransaction_Success()
     // {

Thirdweb/Thirdweb.Contracts/ThirdwebContract.cs

@@ -182,19 +182,6 @@ internal static (string callData, Function function) EncodeFunctionCall(Thirdweb
     {
         var contractRaw = new Contract(null, contract.Abi, contract.Address);
         var function = GetFunctionMatchSignature(contractRaw, method, parameters);
-        if (function == null)
-        {
-            if (method.Contains('('))
-            {
-                var canonicalSignature = ExtractCanonicalSignature(method);
-                var selector = Nethereum.Util.Sha3Keccack.Current.CalculateHash(canonicalSignature)[..8];
-                function = contractRaw.GetFunctionBySignature(selector);
-            }
-            else
-            {
-                throw new ArgumentException("Method signature not found in contract ABI.");
-            }
-        }
         return (function.GetData(parameters), function);
     }
 
@@ -207,6 +194,11 @@ internal static (string callData, Function function) EncodeFunctionCall(Thirdweb
     /// <returns>The matching function, or null if no match is found.</returns>
     private static Function GetFunctionMatchSignature(Contract contract, string functionName, params object[] args)
     {
+        if (functionName.StartsWith("0x"))
+        {
+            return contract.GetFunctionBySignature(functionName);
+        }
+
         var abi = contract.ContractBuilder.ContractABI;
         var functions = abi.Functions;
         var paramsCount = args?.Length ?? 0;
@@ -218,7 +210,17 @@ private static Function GetFunctionMatchSignature(Contract contract, string func
                 return contract.GetFunctionBySignature(sha);
             }
         }
-        return null;
+
+        if (functionName.Contains('('))
+        {
+            var canonicalSignature = ExtractCanonicalSignature(functionName);
+            var selector = Utils.HashMessage(canonicalSignature)[..8];
+            return contract.GetFunctionBySignature(selector);
+        }
+        else
+        {
+            throw new ArgumentException("Method signature not found in contract ABI.");
+        }
     }
 
     /// <summary>

Thirdweb/Thirdweb.Transactions/ThirdwebTransaction.cs

@@ -261,17 +261,24 @@ public static async Task<string> Simulate(ThirdwebTransaction transaction)
     public static async Task<BigInteger> EstimateGasLimit(ThirdwebTransaction transaction)
     {
         var rpc = ThirdwebRPC.GetRpcInstance(transaction._wallet.Client, transaction.Input.ChainId.Value);
-
-        if (await Utils.IsZkSync(transaction._wallet.Client, transaction.Input.ChainId.Value).ConfigureAwait(false))
+        var isZkSync = await Utils.IsZkSync(transaction._wallet.Client, transaction.Input.ChainId.Value).ConfigureAwait(false);
+        BigInteger divider = isZkSync
+            ? 7
+            : transaction.Input.AuthorizationList == null
+                ? 5
+                : 3;
+        BigInteger baseGas;
+        if (isZkSync)
         {
             var hex = (await rpc.SendRequestAsync<JToken>("zks_estimateFee", transaction.Input).ConfigureAwait(false))["gas_limit"].ToString();
-            return new HexBigInteger(hex).Value * 10 / 5;
+            baseGas = hex.HexToNumber();
         }
         else
         {
             var hex = await rpc.SendRequestAsync<string>("eth_estimateGas", transaction.Input).ConfigureAwait(false);
-            return new HexBigInteger(hex).Value * 10 / 7;
+            baseGas = hex.HexToNumber();
         }
+        return baseGas * 10 / divider;
     }
 
     /// <summary>
@@ -357,6 +364,7 @@ public static async Task<string> Send(ThirdwebTransaction transaction)
 
         var rpc = ThirdwebRPC.GetRpcInstance(transaction._wallet.Client, transaction.Input.ChainId.Value);
         string hash;
+
         if (await Utils.IsZkSync(transaction._wallet.Client, transaction.Input.ChainId.Value).ConfigureAwait(false) && transaction.Input.ZkSync.HasValue)
         {
             var zkTx = await ConvertToZkSyncTransaction(transaction).ConfigureAwait(false);