use std::convert::Infallible;
use std::marker::PhantomData;
use std::sync::Arc;
use libp2p_core::upgrade::{InboundConnectionUpgrade, OutboundConnectionUpgrade};
use libp2p_core::Transport;
#[cfg(feature = "relay")]
use libp2p_core::{Negotiated, UpgradeInfo};
#[cfg(feature = "relay")]
use libp2p_identity::PeerId;
#[allow(deprecated)]
use crate::bandwidth::BandwidthSinks;
use crate::SwarmBuilder;
use super::*;
pub struct OtherTransportPhase<T> {
pub(crate) transport: T,
}
impl<Provider, T: AuthenticatedMultiplexedTransport>
SwarmBuilder<Provider, OtherTransportPhase<T>>
{
pub fn with_other_transport<
Muxer: libp2p_core::muxing::StreamMuxer + Send + 'static,
OtherTransport: Transport<Output = (libp2p_identity::PeerId, Muxer)> + Send + Unpin + 'static,
R: TryIntoTransport<OtherTransport>,
>(
self,
constructor: impl FnOnce(&libp2p_identity::Keypair) -> R,
) -> Result<
SwarmBuilder<Provider, OtherTransportPhase<impl AuthenticatedMultiplexedTransport>>,
R::Error,
>
where
<OtherTransport as Transport>::Error: Send + Sync + 'static,
<OtherTransport as Transport>::Dial: Send,
<OtherTransport as Transport>::ListenerUpgrade: Send,
<Muxer as libp2p_core::muxing::StreamMuxer>::Substream: Send,
<Muxer as libp2p_core::muxing::StreamMuxer>::Error: Send + Sync,
{
Ok(SwarmBuilder {
phase: OtherTransportPhase {
transport: self
.phase
.transport
.or_transport(
constructor(&self.keypair)
.try_into_transport()?
.map(|(peer_id, conn), _| (peer_id, StreamMuxerBox::new(conn))),
)
.map(|either, _| either.into_inner()),
},
keypair: self.keypair,
phantom: PhantomData,
})
}
pub(crate) fn without_any_other_transports(self) -> SwarmBuilder<Provider, DnsPhase<T>> {
SwarmBuilder {
keypair: self.keypair,
phantom: PhantomData,
phase: DnsPhase {
transport: self.phase.transport,
},
}
}
}
#[cfg(all(not(target_arch = "wasm32"), feature = "async-std", feature = "dns"))]
impl<T: AuthenticatedMultiplexedTransport>
SwarmBuilder<super::provider::AsyncStd, OtherTransportPhase<T>>
{
pub fn with_dns(
self,
) -> Result<
SwarmBuilder<
super::provider::AsyncStd,
WebsocketPhase<impl AuthenticatedMultiplexedTransport>,
>,
std::io::Error,
> {
self.without_any_other_transports().with_dns()
}
}
#[cfg(all(not(target_arch = "wasm32"), feature = "tokio", feature = "dns"))]
impl<T: AuthenticatedMultiplexedTransport>
SwarmBuilder<super::provider::Tokio, OtherTransportPhase<T>>
{
pub fn with_dns(
self,
) -> Result<
SwarmBuilder<
super::provider::Tokio,
WebsocketPhase<impl AuthenticatedMultiplexedTransport>,
>,
std::io::Error,
> {
self.without_any_other_transports().with_dns()
}
}
#[cfg(all(not(target_arch = "wasm32"), feature = "async-std", feature = "dns"))]
impl<T: AuthenticatedMultiplexedTransport>
SwarmBuilder<super::provider::AsyncStd, OtherTransportPhase<T>>
{
pub fn with_dns_config(
self,
cfg: libp2p_dns::ResolverConfig,
opts: libp2p_dns::ResolverOpts,
) -> SwarmBuilder<
super::provider::AsyncStd,
WebsocketPhase<impl AuthenticatedMultiplexedTransport>,
> {
self.without_any_other_transports()
.with_dns_config(cfg, opts)
}
}
#[cfg(all(not(target_arch = "wasm32"), feature = "tokio", feature = "dns"))]
impl<T: AuthenticatedMultiplexedTransport>
SwarmBuilder<super::provider::Tokio, OtherTransportPhase<T>>
{
pub fn with_dns_config(
self,
cfg: libp2p_dns::ResolverConfig,
opts: libp2p_dns::ResolverOpts,
) -> SwarmBuilder<super::provider::Tokio, WebsocketPhase<impl AuthenticatedMultiplexedTransport>>
{
self.without_any_other_transports()
.with_dns_config(cfg, opts)
}
}
#[cfg(feature = "relay")]
impl<T: AuthenticatedMultiplexedTransport, Provider>
SwarmBuilder<Provider, OtherTransportPhase<T>>
{
pub fn with_relay_client<SecUpgrade, SecStream, SecError, MuxUpgrade, MuxStream, MuxError>(
self,
security_upgrade: SecUpgrade,
multiplexer_upgrade: MuxUpgrade,
) -> Result<
SwarmBuilder<
Provider,
BandwidthLoggingPhase<impl AuthenticatedMultiplexedTransport, libp2p_relay::client::Behaviour>,
>,
SecUpgrade::Error,
> where
SecStream: futures::AsyncRead + futures::AsyncWrite + Unpin + Send + 'static,
SecError: std::error::Error + Send + Sync + 'static,
SecUpgrade: IntoSecurityUpgrade<libp2p_relay::client::Connection>,
SecUpgrade::Upgrade: InboundConnectionUpgrade<Negotiated<libp2p_relay::client::Connection>, Output = (PeerId, SecStream), Error = SecError> + OutboundConnectionUpgrade<Negotiated<libp2p_relay::client::Connection>, Output = (PeerId, SecStream), Error = SecError> + Clone + Send + 'static,
<SecUpgrade::Upgrade as InboundConnectionUpgrade<Negotiated<libp2p_relay::client::Connection>>>::Future: Send,
<SecUpgrade::Upgrade as OutboundConnectionUpgrade<Negotiated<libp2p_relay::client::Connection>>>::Future: Send,
<<<SecUpgrade as IntoSecurityUpgrade<libp2p_relay::client::Connection>>::Upgrade as UpgradeInfo>::InfoIter as IntoIterator>::IntoIter: Send,
<<SecUpgrade as IntoSecurityUpgrade<libp2p_relay::client::Connection>>::Upgrade as UpgradeInfo>::Info: Send,
MuxStream: libp2p_core::muxing::StreamMuxer + Send + 'static,
MuxStream::Substream: Send + 'static,
MuxStream::Error: Send + Sync + 'static,
MuxUpgrade: IntoMultiplexerUpgrade<SecStream>,
MuxUpgrade::Upgrade: InboundConnectionUpgrade<Negotiated<SecStream>, Output = MuxStream, Error = MuxError> + OutboundConnectionUpgrade<Negotiated<SecStream>, Output = MuxStream, Error = MuxError> + Clone + Send + 'static,
<MuxUpgrade::Upgrade as InboundConnectionUpgrade<Negotiated<SecStream>>>::Future: Send,
<MuxUpgrade::Upgrade as OutboundConnectionUpgrade<Negotiated<SecStream>>>::Future: Send,
MuxError: std::error::Error + Send + Sync + 'static,
<<<MuxUpgrade as IntoMultiplexerUpgrade<SecStream>>::Upgrade as UpgradeInfo>::InfoIter as IntoIterator>::IntoIter: Send,
<<MuxUpgrade as IntoMultiplexerUpgrade<SecStream>>::Upgrade as UpgradeInfo>::Info: Send,
{
self.without_any_other_transports()
.without_dns()
.without_websocket()
.with_relay_client(security_upgrade, multiplexer_upgrade)
}
}
impl<Provider, T: AuthenticatedMultiplexedTransport>
SwarmBuilder<Provider, OtherTransportPhase<T>>
{
#[allow(deprecated)]
#[deprecated(note = "Use `with_bandwidth_metrics` instead.")]
pub fn with_bandwidth_logging(
self,
) -> (
SwarmBuilder<
Provider,
BandwidthMetricsPhase<impl AuthenticatedMultiplexedTransport, NoRelayBehaviour>,
>,
Arc<BandwidthSinks>,
) {
#[allow(deprecated)]
self.without_any_other_transports()
.without_dns()
.without_websocket()
.without_relay()
.with_bandwidth_logging()
}
}
#[cfg(feature = "metrics")]
impl<Provider, T: AuthenticatedMultiplexedTransport>
SwarmBuilder<Provider, OtherTransportPhase<T>>
{
pub fn with_bandwidth_metrics(
self,
registry: &mut libp2p_metrics::Registry,
) -> SwarmBuilder<
Provider,
BehaviourPhase<impl AuthenticatedMultiplexedTransport, NoRelayBehaviour>,
> {
self.without_any_other_transports()
.without_dns()
.without_websocket()
.without_relay()
.without_bandwidth_logging()
.with_bandwidth_metrics(registry)
}
}
impl<Provider, T: AuthenticatedMultiplexedTransport>
SwarmBuilder<Provider, OtherTransportPhase<T>>
{
pub fn with_behaviour<B, R: TryIntoBehaviour<B>>(
self,
constructor: impl FnOnce(&libp2p_identity::Keypair) -> R,
) -> Result<SwarmBuilder<Provider, SwarmPhase<T, B>>, R::Error> {
self.without_any_other_transports()
.without_dns()
.without_websocket()
.without_relay()
.without_bandwidth_logging()
.with_behaviour(constructor)
}
}
pub trait TryIntoTransport<T>: private::Sealed<Self::Error> {
type Error;
fn try_into_transport(self) -> Result<T, Self::Error>;
}
impl<T: Transport> TryIntoTransport<T> for T {
type Error = Infallible;
fn try_into_transport(self) -> Result<T, Self::Error> {
Ok(self)
}
}
impl<T: Transport> TryIntoTransport<T> for Result<T, Box<dyn std::error::Error + Send + Sync>> {
type Error = TransportError;
fn try_into_transport(self) -> Result<T, Self::Error> {
self.map_err(TransportError)
}
}
mod private {
pub trait Sealed<Error> {}
}
impl<T: Transport> private::Sealed<Infallible> for T {}
impl<T: Transport> private::Sealed<TransportError>
for Result<T, Box<dyn std::error::Error + Send + Sync>>
{
}
#[derive(Debug, thiserror::Error)]
#[error("failed to build transport: {0}")]
pub struct TransportError(Box<dyn std::error::Error + Send + Sync + 'static>);