Files
pezkuwi-subxt/substrate/client/network/light/src/light_client_requests.rs
T
Vivek Pandya bc53b9a03a Remove years from copyright notes. (#13415)
* Change copyright year to 2023 from 2022

* Fix incorrect update of copyright year

* Remove years from copy right header

* Fix remaining files

* Fix typo in a header and remove update-copyright.sh
2023-02-21 18:46:41 +00:00

60 lines
2.2 KiB
Rust

// This file is part of Substrate.
// Copyright (C) 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/>.
//! Helpers for outgoing and incoming light client requests.
/// For incoming light client requests.
pub mod handler;
use sc_network_common::{config::ProtocolId, request_responses::ProtocolConfig};
use std::time::Duration;
/// Generate the light client protocol name from the genesis hash and fork id.
fn generate_protocol_name<Hash: AsRef<[u8]>>(genesis_hash: Hash, fork_id: Option<&str>) -> String {
let genesis_hash = genesis_hash.as_ref();
if let Some(fork_id) = fork_id {
format!("/{}/{}/light/2", array_bytes::bytes2hex("", genesis_hash), fork_id)
} else {
format!("/{}/light/2", array_bytes::bytes2hex("", genesis_hash))
}
}
/// Generate the legacy light client protocol name from chain specific protocol identifier.
fn generate_legacy_protocol_name(protocol_id: &ProtocolId) -> String {
format!("/{}/light/2", protocol_id.as_ref())
}
/// Generates a [`ProtocolConfig`] for the light client request protocol, refusing incoming
/// requests.
pub fn generate_protocol_config<Hash: AsRef<[u8]>>(
protocol_id: &ProtocolId,
genesis_hash: Hash,
fork_id: Option<&str>,
) -> ProtocolConfig {
ProtocolConfig {
name: generate_protocol_name(genesis_hash, fork_id).into(),
fallback_names: std::iter::once(generate_legacy_protocol_name(protocol_id).into())
.collect(),
max_request_size: 1 * 1024 * 1024,
max_response_size: 16 * 1024 * 1024,
request_timeout: Duration::from_secs(15),
inbound_queue: None,
}
}