chore: update libp2p to 0.52.1 (#14429)

* update libp2p to 0.52.0

* proto name now must implement `AsRef<str>`

* update libp2p version everywhere

* ToSwarm, FromBehaviour, ToBehaviour

also LocalProtocolsChange and RemoteProtocolsChange

* new NetworkBehaviour invariants

* replace `Vec<u8>` with `StreamProtocol`

* rename ConnectionHandlerEvent::Custom to NotifyBehaviour

* remove DialError & ListenError invariants

also fix pending_events

* use connection_limits::Behaviour

See https://github.com/libp2p/rust-libp2p/pull/3885

* impl `void::Void` for `BehaviourOut`

also use `Behaviour::with_codec`

* KademliaHandler no longer public

* fix StreamProtocol construction

* update libp2p-identify to 0.2.0

* remove non-existing methods from PollParameters

rename ConnectionHandlerUpgrErr to StreamUpgradeError

* `P2p` now contains `PeerId`, not `Multihash`

* use multihash-codetable crate

* update Cargo.lock

* reformat text

* comment out tests for now

* remove `.into()` from P2p

* confirm observed addr manually

See https://github.com/libp2p/rust-libp2p/blob/master/protocols/identify/CHANGELOG.md#0430

* remove SwarmEvent::Banned

since we're not using `ban_peer_id`, this can be safely removed.
we may want to introduce `libp2p::allow_block_list` module in the future.

* fix imports

* replace `libp2p` with smaller deps in network-gossip

* bring back tests

* finish rewriting tests

* uncomment handler tests

* Revert "uncomment handler tests"

This reverts commit 720a06815887f4e10767c62b58864a7ec3a48e50.

* add a fixme

* update Cargo.lock

* remove extra From

* make void uninhabited

* fix discovery test

* use autonat protocols

confirming external addresses manually is unsafe in open networks

* fix SyncNotificationsClogged invariant

* only set server mode manually in tests

doubt that we need to set it on node since we're adding public addresses

* address @dmitry-markin comments

* remove autonat

* removed unused var

* fix EOL

* update smallvec and sha2

in attempt to compile polkadot

* bump k256

in attempt to build cumulus

---------

Co-authored-by: parity-processbot <>

substrate/client/network-gossip/src/bridge.rs

@@ -28,7 +28,7 @@ use futures::{
 	channel::mpsc::{channel, Receiver, Sender},
 	prelude::*,
 };
-use libp2p::PeerId;
+use libp2p_identity::PeerId;
 use log::trace;
 use prometheus_endpoint::Registry;
 use sp_runtime::traits::Block as BlockT;
@@ -330,12 +330,13 @@ impl<B: BlockT> futures::future::FusedFuture for GossipEngine<B> {
 #[cfg(test)]
 mod tests {
 	use super::*;
-	use crate::{multiaddr::Multiaddr, ValidationResult, ValidatorContext};
+	use crate::{ValidationResult, ValidatorContext};
 	use futures::{
 		channel::mpsc::{unbounded, UnboundedSender},
 		executor::{block_on, block_on_stream},
 		future::poll_fn,
 	};
+	use multiaddr::Multiaddr;
 	use quickcheck::{Arbitrary, Gen, QuickCheck};
 	use sc_network::{
 		config::MultiaddrWithPeerId, NetworkBlock, NetworkEventStream, NetworkNotification,

substrate/client/network-gossip/src/lib.rs

@@ -67,7 +67,8 @@ pub use self::{
 	validator::{DiscardAll, MessageIntent, ValidationResult, Validator, ValidatorContext},
 };
 
-use libp2p::{multiaddr, PeerId};
+use libp2p_identity::PeerId;
+use multiaddr::{Multiaddr, Protocol};
 use sc_network::{
 	types::ProtocolName, NetworkBlock, NetworkEventStream, NetworkNotification, NetworkPeers,
 };
@@ -82,8 +83,7 @@ mod validator;
 /// Abstraction over a network.
 pub trait Network<B: BlockT>: NetworkPeers + NetworkEventStream + NetworkNotification {
 	fn add_set_reserved(&self, who: PeerId, protocol: ProtocolName) {
-		let addr =
-			iter::once(multiaddr::Protocol::P2p(who.into())).collect::<multiaddr::Multiaddr>();
+		let addr = Multiaddr::empty().with(Protocol::P2p(who));
 		let result = self.add_peers_to_reserved_set(protocol, iter::once(addr).collect());
 		if let Err(err) = result {
 			log::error!(target: "gossip", "add_set_reserved failed: {}", err);

substrate/client/network-gossip/src/state_machine.rs

@@ -19,7 +19,7 @@
 use crate::{MessageIntent, Network, ValidationResult, Validator, ValidatorContext};
 
 use ahash::AHashSet;
-use libp2p::PeerId;
+use libp2p_identity::PeerId;
 use schnellru::{ByLength, LruMap};
 
 use prometheus_endpoint::{register, Counter, PrometheusError, Registry, U64};
@@ -521,8 +521,8 @@ impl Metrics {
 #[cfg(test)]
 mod tests {
 	use super::*;
-	use crate::multiaddr::Multiaddr;
 	use futures::prelude::*;
+	use multiaddr::Multiaddr;
 	use sc_network::{
 		config::MultiaddrWithPeerId, event::Event, NetworkBlock, NetworkEventStream,
 		NetworkNotification, NetworkPeers, NotificationSenderError,

substrate/client/network-gossip/src/validator.rs

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
 
-use libp2p::PeerId;
+use libp2p_identity::PeerId;
 use sc_network_common::role::ObservedRole;
 use sp_runtime::traits::Block as BlockT;