client/authority-discovery/Cargo.toml: Update dependency (#4706)

* client/authority-discovery/Cargo.toml: Update dependency

* client/authority-discovery: Pass packet payload and addresses as slice

Starting with Bytes 0.5 `Vec<T>` does not implement `Buf`, but `&[T]`
does.

client/authority-discovery/Cargo.toml

@@ -16,7 +16,7 @@ futures = "0.3.1"
 futures-timer = "2.0"
 libp2p = { version = "0.14.0-alpha.1", default-features = false, features = ["secp256k1", "libp2p-websocket"] }
 log = "0.4.8"
-prost = "0.5.0"
+prost = "0.6.1"
 rand = "0.7.2"
 sc-client-api = { version = "2.0.0", path = "../api" }
 sc-keystore = { version = "2.0.0", path = "../keystore" }

client/authority-discovery/src/lib.rs

@@ -315,18 +315,18 @@ where
 
 		let remote_addresses: Vec<Multiaddr> = values.into_iter()
 			.map(|(_k, v)| {
-				let schema::SignedAuthorityAddresses {
-					signature,
-					addresses,
-				} = schema::SignedAuthorityAddresses::decode(v).map_err(Error::DecodingProto)?;
+				let schema::SignedAuthorityAddresses { signature, addresses } =
+					schema::SignedAuthorityAddresses::decode(v.as_slice())
+					.map_err(Error::DecodingProto)?;
+
 				let signature = AuthoritySignature::decode(&mut &signature[..])
 					.map_err(Error::EncodingDecodingScale)?;
 
 				if !AuthorityPair::verify(&signature, &addresses, authority_id) {
 					return Err(Error::VerifyingDhtPayload);
 				}
 
-				let addresses: Vec<libp2p::Multiaddr> = schema::AuthorityAddresses::decode(addresses)
+				let addresses = schema::AuthorityAddresses::decode(addresses.as_slice())
 					.map(|a| a.addresses)
 					.map_err(Error::DecodingProto)?
 					.into_iter()