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https://github.com/pezkuwichain/pezkuwi-subxt.git
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Reorganising the repository - external renames and moves (#4074)
* Adding first rough ouline of the repository structure * Remove old CI stuff * add title * formatting fixes * move node-exits job's script to scripts dir * Move docs into subdir * move to bin * move maintainence scripts, configs and helpers into its own dir * add .local to ignore * move core->client * start up 'test' area * move test client * move test runtime * make test move compile * Add dependencies rule enforcement. * Fix indexing. * Update docs to reflect latest changes * Moving /srml->/paint * update docs * move client/sr-* -> primitives/ * clean old readme * remove old broken code in rhd * update lock * Step 1. * starting to untangle client * Fix after merge. * start splitting out client interfaces * move children and blockchain interfaces * Move trie and state-machine to primitives. * Fix WASM builds. * fixing broken imports * more interface moves * move backend and light to interfaces * move CallExecutor * move cli off client * moving around more interfaces * re-add consensus crates into the mix * fix subkey path * relieve client from executor * starting to pull out client from grandpa * move is_decendent_of out of client * grandpa still depends on client directly * lemme tests pass * rename srml->paint * Make it compile. * rename interfaces->client-api * Move keyring to primitives. * fixup libp2p dep * fix broken use * allow dependency enforcement to fail * move fork-tree * Moving wasm-builder * make env * move build-script-utils * fixup broken crate depdencies and names * fix imports for authority discovery * fix typo * update cargo.lock * fixing imports * Fix paths and add missing crates * re-add missing crates
This commit is contained in:
Benjamin Kampmann
committed by
Bastian Köcher
Bastian Köcher
parent
becc3b0a4f
commit
60e5011c72
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// Copyright 2018-2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate 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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// Substrate 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 Substrate. If not, see <http://www.gnu.org/licenses/>.
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use futures::prelude::*;
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use libp2p::{
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InboundUpgradeExt, OutboundUpgradeExt, PeerId, Transport,
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mplex, identity, secio, yamux, bandwidth, wasm_ext
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};
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#[cfg(not(target_os = "unknown"))]
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use libp2p::{tcp, dns, websocket, noise};
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#[cfg(not(target_os = "unknown"))]
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use libp2p::core::{either::EitherError, either::EitherOutput};
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use libp2p::core::{self, upgrade, transport::boxed::Boxed, transport::OptionalTransport, muxing::StreamMuxerBox};
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use std::{io, sync::Arc, time::Duration, usize};
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pub use self::bandwidth::BandwidthSinks;
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/// Builds the transport that serves as a common ground for all connections.
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///
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/// If `memory_only` is true, then only communication within the same process are allowed. Only
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/// addresses with the format `/memory/...` are allowed.
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///
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/// Returns a `BandwidthSinks` object that allows querying the average bandwidth produced by all
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/// the connections spawned with this transport.
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pub fn build_transport(
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keypair: identity::Keypair,
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memory_only: bool,
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wasm_external_transport: Option<wasm_ext::ExtTransport>
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) -> (Boxed<(PeerId, StreamMuxerBox), io::Error>, Arc<bandwidth::BandwidthSinks>) {
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// Build configuration objects for encryption mechanisms.
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#[cfg(not(target_os = "unknown"))]
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let noise_config = {
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let noise_keypair = noise::Keypair::new().into_authentic(&keypair)
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// For more information about this panic, see in "On the Importance of Checking
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// Cryptographic Protocols for Faults" by Dan Boneh, Richard A. DeMillo,
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// and Richard J. Lipton.
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.expect("can only fail in case of a hardware bug; since this signing is performed only \
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once and at initialization, we're taking the bet that the inconvenience of a very \
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rare panic here is basically zero");
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noise::NoiseConfig::ix(noise_keypair)
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};
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let secio_config = secio::SecioConfig::new(keypair);
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// Build configuration objects for multiplexing mechanisms.
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let mut mplex_config = mplex::MplexConfig::new();
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mplex_config.max_buffer_len_behaviour(mplex::MaxBufferBehaviour::Block);
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mplex_config.max_buffer_len(usize::MAX);
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let yamux_config = yamux::Config::default();
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// Build the base layer of the transport.
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let transport = if let Some(t) = wasm_external_transport {
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OptionalTransport::some(t)
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} else {
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OptionalTransport::none()
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};
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#[cfg(not(target_os = "unknown"))]
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let transport = transport.or_transport(if !memory_only {
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let desktop_trans = tcp::TcpConfig::new();
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let desktop_trans = websocket::WsConfig::new(desktop_trans.clone())
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.or_transport(desktop_trans);
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OptionalTransport::some(dns::DnsConfig::new(desktop_trans))
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} else {
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OptionalTransport::none()
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});
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let transport = transport.or_transport(if memory_only {
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OptionalTransport::some(libp2p::core::transport::MemoryTransport::default())
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} else {
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OptionalTransport::none()
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});
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let (transport, sinks) = bandwidth::BandwidthLogging::new(transport, Duration::from_secs(5));
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// Encryption
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// For non-WASM, we support both secio and noise.
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#[cfg(not(target_os = "unknown"))]
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let transport = transport.and_then(move |stream, endpoint| {
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let upgrade = core::upgrade::SelectUpgrade::new(noise_config, secio_config);
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core::upgrade::apply(stream, upgrade, endpoint, upgrade::Version::V1)
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.and_then(|out| match out {
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// We negotiated noise
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EitherOutput::First((remote_id, out)) => {
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let remote_key = match remote_id {
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noise::RemoteIdentity::IdentityKey(key) => key,
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_ => return Err(upgrade::UpgradeError::Apply(EitherError::A(noise::NoiseError::InvalidKey)))
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};
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Ok((EitherOutput::First(out), remote_key.into_peer_id()))
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}
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// We negotiated secio
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EitherOutput::Second((remote_id, out)) =>
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Ok((EitherOutput::Second(out), remote_id))
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})
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});
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// For WASM, we only support secio for now.
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#[cfg(target_os = "unknown")]
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let transport = transport.and_then(move |stream, endpoint| {
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core::upgrade::apply(stream, secio_config, endpoint, upgrade::Version::V1)
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.and_then(|(id, stream)| Ok((stream, id)))
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});
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// Multiplexing
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let transport = transport.and_then(move |(stream, peer_id), endpoint| {
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let peer_id2 = peer_id.clone();
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let upgrade = core::upgrade::SelectUpgrade::new(yamux_config, mplex_config)
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.map_inbound(move |muxer| (peer_id, muxer))
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.map_outbound(move |muxer| (peer_id2, muxer));
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core::upgrade::apply(stream, upgrade, endpoint, upgrade::Version::V1)
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.map(|(id, muxer)| (id, core::muxing::StreamMuxerBox::new(muxer)))
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})
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.timeout(Duration::from_secs(20))
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.map_err(|err| io::Error::new(io::ErrorKind::Other, err))
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.boxed();
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(transport, sinks)
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}
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