grandpa-rpc: use FinalityProofProvider to check finality for rpc (#6215)

* grandpa-rpc: use FinalityProofProvider to check finality for rpc * grandpa-rpc: minor tidy * grandpa-rpc: remove dyn FinalityProofProvider * grandpa-rpc: remove unused dependencies * node: move finality_proof_provider setup * grandpa-rpc: print error reported by finality_proof_provider * grandpa-rpc: add note about unnecessary encode/decode * grandpa-rpc: dont encode/decode and use correct hash * grandpa-rpc: set_id is optional * grandpa-rpc: create test for prove_finality * grandpa-rpc: set visibility back to how it was * grandpa-rpc: remove unused dependency * grandpa-rpc: minor tidy * grandpa: doc strings * grandpa-rpc: rename to prove_finality * grandpa-rpc: use current set id if none is provided * grandpa-rpc: remove unnecessary check in test * node: group finality_proof_provider in rpc_setup * grandpa: make prove_finality concrete in FinalityProofProvider * grandpa-rpc: wrap finality output in struct and store as Bytes * grandpa-rpc: exhaustive error codes and wrap * grandpa-rpc: let prove_finality take a range instead of a starting point * grandpa-rpc: fix test for changed API * grandpa-rpc: fix line length * grandpa: fix reviewer nits * node/rpc: fix reviewer comments
2026-06-01 01:01:01 +00:00 · 2020-09-18 18:39:27 +02:00
parent 743cf7543b
commit 8a0ac4c40c
10 changed files with 263 additions and 31 deletions
@@ -0,0 +1,54 @@
+// This file is part of Substrate.
+
+// Copyright (C) 2020 Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+use serde::{Serialize, Deserialize};
+
+use sc_finality_grandpa::FinalityProofProvider;
+use sp_runtime::traits::{Block as BlockT, NumberFor};
+
+#[derive(Serialize, Deserialize)]
+pub struct EncodedFinalityProofs(pub sp_core::Bytes);
+
+/// Local trait mainly to allow mocking in tests.
+pub trait RpcFinalityProofProvider<Block: BlockT> {
+	/// Return finality proofs for the given authorities set id, if it is provided, otherwise the
+	/// current one will be used.
+	fn rpc_prove_finality(
+		&self,
+		begin: Block::Hash,
+		end: Block::Hash,
+		authorities_set_id: u64,
+	) -> Result<Option<EncodedFinalityProofs>, sp_blockchain::Error>;
+}
+
+impl<B, Block> RpcFinalityProofProvider<Block> for FinalityProofProvider<B, Block>
+where
+	Block: BlockT,
+	NumberFor<Block>: finality_grandpa::BlockNumberOps,
+	B: sc_client_api::backend::Backend<Block> + Send + Sync + 'static,
+{
+	fn rpc_prove_finality(
+		&self,
+		begin: Block::Hash,
+		end: Block::Hash,
+		authorities_set_id: u64,
+	) -> Result<Option<EncodedFinalityProofs>, sp_blockchain::Error> {
+		self.prove_finality(begin, end, authorities_set_id)
+			.map(|x| x.map(|y| EncodedFinalityProofs(y.into())))
+	}
+}