fix: Rename Protocol::WebRTC to Protocol::WebRTCDirect

CHANGELOG.md

@@ -1,9 +1,15 @@
-# 0.18.0 [unreleased]
+# 0.18.0 - unreleased
 
 - Add `WebTransport` instance for `Multiaddr`. See [PR 70].
 - Disable all features of `multihash`. See [PR 77].
 - Mark `Protocol` as `#[non_exhaustive]`. See [PR 82].
 
+- Rename `Protocol::WebRTC` to `Protocol::WebRTC`.
+  See [multiformats/multiaddr discussion] for context.
+  Remove deprecated support for `/webrtc` in favor of the existing `/webrtc-direct` string representation.
+  **Note that this is a breaking change.**
+
+[multiformats/multiaddr discussion]: https://github.com/multiformats/multiaddr/pull/150#issuecomment-1468791586
 [PR 70]: https://github.com/multiformats/rust-multiaddr/pull/70
 [PR 77]: https://github.com/multiformats/rust-multiaddr/pull/77
 [PR 82]: https://github.com/multiformats/rust-multiaddr/pull/82

Cargo.toml

@@ -17,7 +17,6 @@ default = ["url"]
 arrayref = "0.3"
 byteorder = "1.3.1"
 data-encoding = "2.1"
-log = "0.4"
 multibase = "0.9.1"
 multihash = { version = "0.18", default-features = false, features = ["std"] }
 percent-encoding = "2.1.0"

src/protocol.rs

@@ -28,7 +28,7 @@ const IP4: u32 = 4;
 const IP6: u32 = 41;
 const P2P_WEBRTC_DIRECT: u32 = 276;
 const P2P_WEBRTC_STAR: u32 = 275;
-const WEBRTC: u32 = 280;
+const WEBRTC_DIRECT: u32 = 280;
 const CERTHASH: u32 = 466;
 const P2P_WEBSOCKET_STAR: u32 = 479;
 const MEMORY: u32 = 777;
@@ -92,7 +92,7 @@ pub enum Protocol<'a> {
     Ip6(Ipv6Addr),
     P2pWebRtcDirect,
     P2pWebRtcStar,
-    WebRTC,
+    WebRTCDirect,
     Certhash(Multihash),
     P2pWebSocketStar,
     /// Contains the "port" to contact. Similar to TCP or UDP, 0 means "assign me a port".
@@ -210,11 +210,7 @@ impl<'a> Protocol<'a> {
             }
             "p2p-websocket-star" => Ok(Protocol::P2pWebSocketStar),
             "p2p-webrtc-star" => Ok(Protocol::P2pWebRtcStar),
-            "webrtc" => {
-                log::warn!("Parsed deprecated /webrtc. Use /webrtc-direct instead.");
-                Ok(Protocol::WebRTC)
-            }
-            "webrtc-direct" => Ok(Protocol::WebRTC),
+            "webrtc-direct" => Ok(Protocol::WebRTCDirect),
             "certhash" => {
                 let s = iter.next().ok_or(Error::InvalidProtocolString)?;
                 let (_base, decoded) = multibase::decode(s)?;
@@ -296,7 +292,7 @@ impl<'a> Protocol<'a> {
             }
             P2P_WEBRTC_DIRECT => Ok((Protocol::P2pWebRtcDirect, input)),
             P2P_WEBRTC_STAR => Ok((Protocol::P2pWebRtcStar, input)),
-            WEBRTC => Ok((Protocol::WebRTC, input)),
+            WEBRTC_DIRECT => Ok((Protocol::WebRTCDirect, input)),
             CERTHASH => {
                 let (n, input) = decode::usize(input)?;
                 let (data, rest) = split_at(n, input)?;
@@ -479,7 +475,7 @@ impl<'a> Protocol<'a> {
             }
             Protocol::P2pWebSocketStar => w.write_all(encode::u32(P2P_WEBSOCKET_STAR, &mut buf))?,
             Protocol::P2pWebRtcStar => w.write_all(encode::u32(P2P_WEBRTC_STAR, &mut buf))?,
-            Protocol::WebRTC => w.write_all(encode::u32(WEBRTC, &mut buf))?,
+            Protocol::WebRTCDirect => w.write_all(encode::u32(WEBRTC_DIRECT, &mut buf))?,
             Protocol::Certhash(hash) => {
                 w.write_all(encode::u32(CERTHASH, &mut buf))?;
                 let bytes = hash.to_bytes();
@@ -511,7 +507,7 @@ impl<'a> Protocol<'a> {
             Ip6(a) => Ip6(a),
             P2pWebRtcDirect => P2pWebRtcDirect,
             P2pWebRtcStar => P2pWebRtcStar,
-            WebRTC => WebRTC,
+            WebRTCDirect => WebRTCDirect,
             Certhash(hash) => Certhash(hash),
             P2pWebSocketStar => P2pWebSocketStar,
             Memory(a) => Memory(a),
@@ -549,7 +545,7 @@ impl<'a> Protocol<'a> {
             Ip6(_) => "ip6",
             P2pWebRtcDirect => "p2p-webrtc-direct",
             P2pWebRtcStar => "p2p-webrtc-star",
-            WebRTC => "webrtc-direct",
+            WebRTCDirect => "webrtc-direct",
             Certhash(_) => "certhash",
             P2pWebSocketStar => "p2p-websocket-star",
             Memory(_) => "memory",

tests/lib.rs

@@ -102,7 +102,7 @@ impl Arbitrary for Proto {
             8 => Proto(Ip6(Ipv6Addr::arbitrary(g))),
             9 => Proto(P2pWebRtcDirect),
             10 => Proto(P2pWebRtcStar),
-            11 => Proto(WebRTC),
+            11 => Proto(WebRTCDirect),
             12 => Proto(Certhash(Mh::arbitrary(g).0)),
             13 => Proto(P2pWebSocketStar),
             14 => Proto(Memory(Arbitrary::arbitrary(g))),
@@ -359,7 +359,7 @@ fn construct_success() {
     ma_valid(
         "/ip4/127.0.0.1/udp/1234/webrtc-direct",
         "047F000001910204D29802",
-        vec![Ip4(local), Udp(1234), WebRTC],
+        vec![Ip4(local), Udp(1234), WebRTCDirect],
     );
 
     let (_base, decoded) =
@@ -370,7 +370,7 @@ fn construct_success() {
         vec![
             Ip4(local),
             Udp(1234),
-            WebRTC,
+            WebRTCDirect,
             Certhash(MultihashGeneric::from_bytes(&decoded).unwrap()),
         ],
     );
@@ -649,23 +649,3 @@ fn arbitrary_impl_for_all_proto_variants() {
     let variants = core::mem::variant_count::<Protocol>() as u8;
     assert_eq!(variants, Proto::IMPL_VARIANT_COUNT);
 }
-
-#[test]
-fn webrtc_webrtc_direct_rename() {
-    assert_eq!(
-        Multiaddr::empty().with(Protocol::WebRTC),
-        "/webrtc".parse().unwrap(),
-    );
-    assert_eq!(
-        Multiaddr::empty().with(Protocol::WebRTC),
-        "/webrtc-direct".parse().unwrap(),
-    );
-    assert_eq!(
-        "/webrtc-direct",
-        Multiaddr::empty().with(Protocol::WebRTC).to_string(),
-    );
-    assert_ne!(
-        "/webrtc",
-        Multiaddr::empty().with(Protocol::WebRTC).to_string(),
-    );
-}