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[multistream-select] Fix panic with V1Lazy and add integration tests.
Fixes a panic when using the `V1Lazy` negotiation protocol, a regression introduced in libp2p#1484. Thereby adds integration tests for a transport upgrade with both `V1` and `V1Lazy` to the `multistream-select` crate to prevent future regressions.
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Roman S. Borschel
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Oct 5, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| // Copyright 2020 Parity Technologies (UK) Ltd. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a | ||
| // copy of this software and associated documentation files (the "Software"), | ||
| // to deal in the Software without restriction, including without limitation | ||
| // the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
| // and/or sell copies of the Software, and to permit persons to whom the | ||
| // Software is furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | ||
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
| // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
| // DEALINGS IN THE SOFTWARE. | ||
|
|
||
| use libp2p_core::{ | ||
| connection::{ConnectionHandler, ConnectionHandlerEvent, Substream, SubstreamEndpoint}, | ||
| identity, | ||
| muxing::StreamMuxerBox, | ||
| upgrade, | ||
| multiaddr::Protocol, | ||
| Multiaddr, | ||
| Network, | ||
| network::{NetworkEvent, NetworkConfig}, | ||
| PeerId, | ||
| Transport, | ||
| transport::{self, MemoryTransport} | ||
| }; | ||
| use libp2p_mplex::MplexConfig; | ||
| use libp2p_plaintext::PlainText2Config; | ||
| use futures::{channel::oneshot, ready, prelude::*}; | ||
| use rand::random; | ||
| use std::{io, task::{Context, Poll}}; | ||
|
|
||
| type TestTransport = transport::Boxed<(PeerId, StreamMuxerBox), io::Error>; | ||
| type TestNetwork = Network<TestTransport, (), (), TestHandler>; | ||
|
|
||
| fn mk_transport(up: upgrade::Version) -> (PeerId, TestTransport) { | ||
| let keys = identity::Keypair::generate_ed25519(); | ||
| let id = keys.public().into_peer_id(); | ||
| (id, MemoryTransport::default() | ||
| .upgrade(up) | ||
| .authenticate(PlainText2Config { local_public_key: keys.public() }) | ||
| .multiplex(MplexConfig::default()) | ||
| .boxed()) | ||
| } | ||
|
|
||
| /// Tests the transport upgrade process with all supported | ||
| /// upgrade protocol versions. | ||
| #[test] | ||
| fn transport_upgrade() { | ||
| let _ = env_logger::try_init(); | ||
|
|
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| fn run(up: upgrade::Version) { | ||
| let (dialer_id, dialer_transport) = mk_transport(up); | ||
| let (listener_id, listener_transport) = mk_transport(up); | ||
|
|
||
| let listen_addr = Multiaddr::from(Protocol::Memory(random::<u64>())); | ||
|
|
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| let mut dialer = TestNetwork::new(dialer_transport, dialer_id, NetworkConfig::default()); | ||
| let mut listener = TestNetwork::new(listener_transport, listener_id, NetworkConfig::default()); | ||
|
|
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| listener.listen_on(listen_addr).unwrap(); | ||
| let (addr_sender, addr_receiver) = oneshot::channel(); | ||
|
|
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| let client = async move { | ||
| let addr = addr_receiver.await.unwrap(); | ||
| dialer.dial(&addr, TestHandler()).unwrap(); | ||
| futures::future::poll_fn(move |cx| { | ||
| loop { | ||
| match ready!(dialer.poll(cx)) { | ||
| NetworkEvent::ConnectionEstablished { .. } => { | ||
| return Poll::Ready(()) | ||
| } | ||
| _ => {} | ||
| } | ||
| } | ||
| }).await | ||
| }; | ||
|
|
||
| let mut addr_sender = Some(addr_sender); | ||
| let server = futures::future::poll_fn(move |cx| { | ||
| loop { | ||
| match ready!(listener.poll(cx)) { | ||
| NetworkEvent::NewListenerAddress { listen_addr, .. } => { | ||
| addr_sender.take().unwrap().send(listen_addr).unwrap(); | ||
| } | ||
| NetworkEvent::IncomingConnection { connection, .. } => { | ||
| listener.accept(connection, TestHandler()).unwrap(); | ||
| } | ||
| NetworkEvent::ConnectionEstablished { .. } => { | ||
| return Poll::Ready(()) | ||
| } | ||
| _ => {} | ||
| } | ||
| } | ||
| }); | ||
|
|
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| async_std::task::block_on(future::select(Box::pin(server), Box::pin(client))); | ||
| } | ||
|
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| run(upgrade::Version::V1); | ||
| run(upgrade::Version::V1Lazy); | ||
| } | ||
|
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| struct TestHandler(); | ||
|
|
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| impl ConnectionHandler for TestHandler { | ||
| type InEvent = (); | ||
| type OutEvent = (); | ||
| type Error = io::Error; | ||
| type Substream = Substream<StreamMuxerBox>; | ||
| type OutboundOpenInfo = (); | ||
|
|
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| fn inject_substream(&mut self, _: Self::Substream, _: SubstreamEndpoint<Self::OutboundOpenInfo>) | ||
| {} | ||
|
|
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| fn inject_event(&mut self, _: Self::InEvent) | ||
| {} | ||
|
|
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| fn inject_address_change(&mut self, _: &Multiaddr) | ||
| {} | ||
|
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| fn poll(&mut self, _: &mut Context<'_>) | ||
| -> Poll<Result<ConnectionHandlerEvent<Self::OutboundOpenInfo, Self::OutEvent>, Self::Error>> | ||
| { | ||
| Poll::Pending | ||
| // Poll::Ready(Ok(ConnectionHandlerEvent::Custom(()))) | ||
| } | ||
| } | ||
|
|
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