[WalletConnect/BNB]: Add support for WalletConnect signing requests

.github/workflows/codegen-v2.yml

@@ -13,6 +13,7 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.draft == false
     steps:
     - uses: actions/checkout@v2
     - uses: actions-rs/toolchain@v1

android/app/src/androidTest/java/com/trustwallet/core/app/blockchains/binance/TestBinanceWalletConnectSigning.kt

@@ -0,0 +1,46 @@
+package com.trustwallet.core.app.blockchains.binance
+
+import com.google.protobuf.ByteString
+import com.trustwallet.core.app.utils.toHexBytes
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import wallet.core.jni.proto.Binance.SigningOutput
+import wallet.core.jni.proto.WalletConnect
+import wallet.core.jni.*
+import wallet.core.jni.CoinType.BINANCE
+import wallet.core.java.AnySigner
+import wallet.core.jni.proto.Common
+
+class TestBinanceWalletConnectSigning {
+    init {
+        System.loadLibrary("TrustWalletCore")
+    }
+
+    @Test
+    fun testSignBinanceTransactionFromWalletConnectRequest() {
+        // Step 1: Parse a signing request received through WalletConnect.
+
+        val parsingInput = WalletConnect.ParseRequestInput.newBuilder().apply {
+            method = WalletConnect.Method.CosmosSignAmino
+            payload = "{\"signerAddress\":\"bnb1grpf0955h0ykzq3ar5nmum7y6gdfl6lxfn46h2\",\"signDoc\":{\"account_number\":\"19\",\"chain_id\":\"chain-bnb\",\"memo\":\"\",\"data\":null,\"msgs\":[{\"inputs\":[{\"address\":\"bnb1grpf0955h0ykzq3ar5nmum7y6gdfl6lxfn46h2\",\"coins\":[{\"amount\":1001000000,\"denom\":\"BNB\"}]}],\"outputs\":[{\"address\":\"bnb13zeh6hs97d5eu2s5qerguhv8ewwue6u4ywa6yf\",\"coins\":[{\"amount\":1001000000,\"denom\":\"BNB\"}]}]}],\"sequence\":\"23\",\"source\":\"1\"}}"
+        }.build()
+
+        val parsingOutputBytes = WalletConnectRequest.parse(BINANCE, parsingInput.toByteArray())
+        val parsingOutput = WalletConnect.ParseRequestOutput.parseFrom(parsingOutputBytes)
+
+        assertEquals(parsingOutput.error, Common.SigningError.OK)
+
+        // Step 2: Set missing fields.
+
+        val signingInput = parsingOutput.binance.toBuilder().apply {
+            privateKey = ByteString.copyFrom("95949f757db1f57ca94a5dff23314accbe7abee89597bf6a3c7382c84d7eb832".toHexBytes())
+        }.build()
+
+        // Step 3: Sign the transaction.
+
+        val output = AnySigner.sign(signingInput, BINANCE, SigningOutput.parser())
+
+        assertEquals(output.error, Common.SigningError.OK)
+        assertEquals(output.signatureJson, "{\"pub_key\":{\"type\":\"tendermint/PubKeySecp256k1\",\"value\":\"Amo1kgCI2Yw4iMpoxT38k/RWRgJgbLuH8P5e5TPbOOUC\"},\"signature\":\"PCTHhMa7+Z1U/6uxU+3LbTxKd0k231xypdMolyVvjgYvMg+0dTMC+wqW8IxHWXTSDt/Ronu+7ac1h/WN3JWJdQ==\"}")
+    }
+}

codegen-v2/src/codegen/rust/templates/blockchain_crate/entry.rs

@@ -15,6 +15,7 @@ use tw_coin_entry::error::AddressResult;
 use tw_coin_entry::modules::json_signer::NoJsonSigner;
 use tw_coin_entry::modules::message_signer::NoMessageSigner;
 use tw_coin_entry::modules::plan_builder::NoPlanBuilder;
+use tw_coin_entry::modules::wallet_connector::NoWalletConnector;
 use tw_coin_entry::prefix::NoPrefix;
 use tw_keypair::tw::PublicKey;
 use tw_proto::{BLOCKCHAIN}::Proto;
@@ -33,6 +34,7 @@ impl CoinEntry for {BLOCKCHAIN}Entry {
     type JsonSigner = NoJsonSigner;
     type PlanBuilder = NoPlanBuilder;
     type MessageSigner = NoMessageSigner;
+    type WalletConnector = NoWalletConnector;
 
     #[inline]
     fn parse_address(

codegen-v2/src/tests/samples/class.output.swift

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

codegen-v2/src/tests/samples/enum.output.swift

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

codegen-v2/src/tests/samples/enum_extension.output.swift

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

codegen-v2/src/tests/samples/enum_private.output.swift

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

codegen-v2/src/tests/samples/non-associated.output.swift

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

codegen-v2/src/tests/samples/optional.output.swift

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

codegen-v2/src/tests/samples/private_class.output.swift

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

codegen-v2/src/tests/samples/struct.output.swift

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

include/TrustWalletCore/TWWalletConnectRequest.h

@@ -0,0 +1,27 @@
+// Copyright © 2017-2024 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+
+#pragma once
+
+#include "TWBase.h"
+#include "TWCoinType.h"
+#include "TWData.h"
+
+TW_EXTERN_C_BEGIN
+
+/// Represents a WalletConnect signing request.
+TW_EXPORT_CLASS
+struct TWWalletConnectRequest;
+
+/// Parses the WalletConnect signing request as a `SigningInput`.
+///
+/// \param coin The given coin type to plan the transaction for.
+/// \param input The serialized data of a `WalletConnect::Proto::ParseRequestInput` proto object.
+/// \return The serialized data of `WalletConnect::Proto::ParseRequestOutput` proto object.
+TW_EXPORT_STATIC_METHOD
+TWData* _Nonnull TWWalletConnectRequestParse(enum TWCoinType coin, TWData* _Nonnull input);
+
+TW_EXTERN_C_END

rust/chains/tw_binance/Cargo.toml

@@ -17,5 +17,5 @@ tw_evm = { path = "../../tw_evm" }
 tw_hash = { path = "../../tw_hash" }
 tw_keypair = { path = "../../tw_keypair" }
 tw_memory = { path = "../../tw_memory" }
-tw_misc = { path = "../../tw_misc" }
+tw_misc = { path = "../../tw_misc", features = ["serde"] }
 tw_proto = { path = "../../tw_proto" }

rust/chains/tw_binance/src/address.rs

@@ -1,17 +1,18 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the
 // file LICENSE at the root of the source code distribution tree.
 
-use serde::Serialize;
+use serde::{Deserialize, Serialize};
 use std::fmt;
 use std::str::FromStr;
 use tw_bech32_address::bech32_prefix::Bech32Prefix;
 use tw_bech32_address::Bech32Address;
 use tw_coin_entry::coin_context::CoinContext;
 use tw_coin_entry::coin_entry::CoinAddress;
 use tw_coin_entry::error::{AddressError, AddressResult};
+use tw_cosmos_sdk::address::CosmosAddress;
 use tw_keypair::tw::PublicKey;
 use tw_memory::Data;
 
@@ -21,7 +22,7 @@ const BNB_KNOWN_HRPS: [&str; 2] = [
     "bca",
 ];
 
-#[derive(Serialize)]
+#[derive(Deserialize, PartialEq, Serialize)]
 pub struct BinanceAddress(Bech32Address);
 
 impl CoinAddress for BinanceAddress {
@@ -31,6 +32,16 @@ impl CoinAddress for BinanceAddress {
     }
 }
 
+impl CosmosAddress for BinanceAddress {
+    fn from_str_with_coin(coin: &dyn CoinContext, addr: &str) -> AddressResult<Self>
+    where
+        Self: Sized,
+    {
+        let prefix = None;
+        Self::from_str_with_coin_and_prefix(coin, addr.to_string(), prefix)
+    }
+}
+
 impl BinanceAddress {
     pub const VALIDATOR_HRP: &'static str = "bva";
 

rust/chains/tw_binance/src/amino.rs

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

rust/chains/tw_binance/src/compiler.rs

@@ -1,9 +1,10 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the
 // file LICENSE at the root of the source code distribution tree.
 
+use crate::context::BinanceContext;
 use crate::modules::preimager::{JsonPreimager, JsonTxPreimage};
 use crate::modules::serializer::BinanceAminoSerializer;
 use crate::modules::tx_builder::TxBuilder;
@@ -12,9 +13,12 @@ use crate::transaction::SignerInfo;
 use tw_coin_entry::coin_context::CoinContext;
 use tw_coin_entry::coin_entry::{PublicKeyBytes, SignatureBytes};
 use tw_coin_entry::common::compile_input::SingleSignaturePubkey;
-use tw_coin_entry::error::SigningResult;
+use tw_coin_entry::error::{SigningError, SigningErrorType, SigningResult};
 use tw_coin_entry::signing_output_error;
-use tw_keypair::ecdsa::secp256k1;
+use tw_cosmos_sdk::modules::serializer::json_serializer::JsonSerializer;
+use tw_cosmos_sdk::public_key::secp256k1::Secp256PublicKey;
+use tw_cosmos_sdk::public_key::CosmosPublicKey;
+use tw_misc::traits::ToBytesVec;
 use tw_proto::Binance::Proto;
 use tw_proto::TxCompiler::Proto as CompilerProto;
 
@@ -69,7 +73,13 @@ impl BinanceCompiler {
             public_key,
         } = SingleSignaturePubkey::from_sign_pubkey_list(signatures, public_keys)?;
         let signature = BinanceSignature::try_from(signature.as_slice())?;
-        let public_key = secp256k1::PublicKey::try_from(public_key.as_slice())?;
+        let public_key = Secp256PublicKey::from_bytes(coin, public_key.as_slice())?;
+
+        let signature_bytes = signature.to_vec();
+        let signature_json = JsonSerializer::<BinanceContext>::serialize_signature(
+            &public_key,
+            signature_bytes.clone(),
+        );
 
         let unsigned_tx = TxBuilder::unsigned_tx_from_proto(coin, &input)?;
         let signed_tx = unsigned_tx.into_signed(SignerInfo {
@@ -79,8 +89,12 @@ impl BinanceCompiler {
 
         let encoded_tx = BinanceAminoSerializer::serialize_signed_tx(&signed_tx)?;
 
+        let signature_json = serde_json::to_string(&signature_json)
+            .map_err(|_| SigningError(SigningErrorType::Error_internal))?;
         Ok(Proto::SigningOutput {
             encoded: encoded_tx.into(),
+            signature: signature_bytes.into(),
+            signature_json: signature_json.into(),
             ..Proto::SigningOutput::default()
         })
     }

rust/chains/tw_binance/src/context.rs

@@ -0,0 +1,23 @@
+// Copyright © 2017-2024 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+
+use crate::address::BinanceAddress;
+use tw_cosmos_sdk::context::CosmosContext;
+use tw_cosmos_sdk::hasher::sha256_hasher::Sha256Hasher;
+use tw_cosmos_sdk::private_key::secp256k1::Secp256PrivateKey;
+use tw_cosmos_sdk::public_key::secp256k1::Secp256PublicKey;
+use tw_cosmos_sdk::signature::secp256k1::Secp256k1Signature;
+
+pub struct BinanceContext;
+
+impl CosmosContext for BinanceContext {
+    type Address = BinanceAddress;
+    /// Binance Beacon chain uses `sha256` hash.
+    type TxHasher = Sha256Hasher;
+    type PrivateKey = Secp256PrivateKey;
+    type PublicKey = Secp256PublicKey;
+    type Signature = Secp256k1Signature;
+}

rust/chains/tw_binance/src/entry.rs

@@ -1,11 +1,12 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the
 // file LICENSE at the root of the source code distribution tree.
 
 use crate::address::BinanceAddress;
 use crate::compiler::BinanceCompiler;
+use crate::modules::wallet_connect::connector::BinanceWalletConnector;
 use crate::signer::BinanceSigner;
 use std::str::FromStr;
 use tw_bech32_address::bech32_prefix::Bech32Prefix;
@@ -33,6 +34,7 @@ impl CoinEntry for BinanceEntry {
     type JsonSigner = NoJsonSigner;
     type PlanBuilder = NoPlanBuilder;
     type MessageSigner = NoMessageSigner;
+    type WalletConnector = BinanceWalletConnector;
 
     #[inline]
     fn parse_address(
@@ -88,4 +90,9 @@ impl CoinEntry for BinanceEntry {
     ) -> Self::SigningOutput {
         BinanceCompiler::compile(coin, input, signatures, public_keys)
     }
+
+    #[inline]
+    fn wallet_connector(&self) -> Option<Self::WalletConnector> {
+        Some(BinanceWalletConnector)
+    }
 }

rust/chains/tw_binance/src/lib.rs

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the
@@ -7,6 +7,7 @@
 pub mod address;
 pub mod amino;
 pub mod compiler;
+pub mod context;
 pub mod entry;
 pub mod modules;
 pub mod signature;

rust/chains/tw_binance/src/modules/mod.rs

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the
@@ -7,3 +7,4 @@
 pub mod preimager;
 pub mod serializer;
 pub mod tx_builder;
+pub mod wallet_connect;

rust/chains/tw_binance/src/modules/preimager.rs

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the

rust/chains/tw_binance/src/modules/serializer.rs

@@ -1,4 +1,4 @@
-// Copyright © 2017-2023 Trust Wallet.
+// Copyright © 2017-2024 Trust Wallet.
 //
 // This file is part of Trust. The full Trust copyright notice, including
 // terms governing use, modification, and redistribution, is contained in the
@@ -8,7 +8,7 @@ use crate::amino::AminoEncoder;
 use crate::transaction::SignedTransaction;
 use std::borrow::Cow;
 use tw_coin_entry::error::{SigningError, SigningErrorType, SigningResult};
-use tw_hash::H264;
+use tw_cosmos_sdk::public_key::CosmosPublicKey;
 use tw_memory::Data;
 use tw_misc::traits::ToBytesVec;
 use tw_proto::serialize;
@@ -27,7 +27,7 @@ impl BinanceAminoSerializer {
             .unsigned
             .msgs
             .iter()
-            .map(|msg| msg.to_amino_protobuf().map(Cow::from))
+            .map(|msg| msg.as_ref().to_amino_protobuf().map(Cow::from))
             .collect::<SigningResult<Vec<_>>>()?;
 
         let signature = Self::serialize_signature(tx)?;
@@ -43,7 +43,7 @@ impl BinanceAminoSerializer {
             .encode_size_prefixed()?)
     }
 
-    pub fn serialize_public_key(public_key: H264) -> Data {
+    pub fn serialize_public_key(public_key: Data) -> Data {
         let public_key_len = public_key.len() as u8;
         AminoEncoder::new(&PUBLIC_KEY_PREFIX)
             // Push the length of the public key.
@@ -54,7 +54,7 @@ impl BinanceAminoSerializer {
 
     pub fn serialize_signature(signed: &SignedTransaction) -> SigningResult<Data> {
         let sign_msg = Proto::Signature {
-            pub_key: Self::serialize_public_key(signed.signer.public_key.compressed()).into(),
+            pub_key: Self::serialize_public_key(signed.signer.public_key.to_bytes()).into(),
             signature: signed.signer.signature.to_vec().into(),
             account_number: signed.unsigned.account_number,
             sequence: signed.unsigned.sequence,