128 lines
3.5 KiB
Rust
128 lines
3.5 KiB
Rust
// Copyright 2015-2019 Parity Technologies (UK) Ltd.
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// This file is part of Parity Ethereum.
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// Parity Ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity Ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
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use std::{io, sync::Arc};
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use parity_rpc::Metadata;
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use parity_whisper::{
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message::Message,
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net::{self as whisper_net, Network as WhisperNetwork},
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rpc::{FilterManager, PoolHandle, WhisperClient},
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};
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use sync::{AttachedProtocol, ManageNetwork};
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/// Whisper config.
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#[derive(Debug, PartialEq, Eq)]
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pub struct Config {
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pub enabled: bool,
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pub target_message_pool_size: usize,
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}
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impl Default for Config {
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fn default() -> Self {
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Config {
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enabled: false,
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target_message_pool_size: 10 * 1024 * 1024,
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}
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}
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}
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/// Standard pool handle.
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pub struct NetPoolHandle {
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/// Pool handle.
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handle: Arc<WhisperNetwork<Arc<FilterManager>>>,
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/// Network manager.
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net: Arc<dyn ManageNetwork>,
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}
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impl PoolHandle for NetPoolHandle {
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fn relay(&self, message: Message) -> bool {
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let mut res = false;
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let mut message = Some(message);
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self.net
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.with_proto_context(whisper_net::PROTOCOL_ID, &mut |ctx| {
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if let Some(message) = message.take() {
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res = self.handle.post_message(message, ctx);
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}
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});
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res
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}
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fn pool_status(&self) -> whisper_net::PoolStatus {
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self.handle.pool_status()
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}
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}
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/// Factory for standard whisper RPC.
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pub struct RpcFactory {
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net: Arc<WhisperNetwork<Arc<FilterManager>>>,
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manager: Arc<FilterManager>,
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}
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impl RpcFactory {
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pub fn make_handler(
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&self,
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net: Arc<dyn ManageNetwork>,
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) -> WhisperClient<NetPoolHandle, Metadata> {
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let handle = NetPoolHandle {
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handle: self.net.clone(),
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net: net,
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};
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WhisperClient::new(handle, self.manager.clone())
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}
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}
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/// Sets up whisper protocol and RPC handler.
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///
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/// Will target the given pool size.
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#[cfg(not(feature = "ipc"))]
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pub fn setup(
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target_pool_size: usize,
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protos: &mut Vec<AttachedProtocol>,
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) -> io::Result<Option<RpcFactory>> {
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let manager = Arc::new(FilterManager::new()?);
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let net = Arc::new(WhisperNetwork::new(target_pool_size, manager.clone()));
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protos.push(AttachedProtocol {
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handler: net.clone() as Arc<_>,
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versions: whisper_net::SUPPORTED_VERSIONS,
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protocol_id: whisper_net::PROTOCOL_ID,
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});
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// parity-only extensions to whisper.
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protos.push(AttachedProtocol {
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handler: Arc::new(whisper_net::ParityExtensions),
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versions: whisper_net::SUPPORTED_VERSIONS,
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protocol_id: whisper_net::PARITY_PROTOCOL_ID,
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});
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let factory = RpcFactory {
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net: net,
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manager: manager,
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};
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Ok(Some(factory))
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}
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// TODO: make it possible to attach generic protocols in IPC.
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#[cfg(feature = "ipc")]
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pub fn setup(
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_target_pool_size: usize,
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_protos: &mut Vec<AttachedProtocol>,
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) -> io::Result<Option<RpcFactory>> {
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Ok(None)
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}
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