fix: Add support for webrtc and certhash (multiformats#261)

package.json

@@ -167,6 +167,7 @@
     "dns-over-http-resolver": "^2.1.0",
     "err-code": "^3.0.1",
     "is-ip": "^4.0.0",
+    "multibase": "^4.0.6",
     "multiformats": "^9.4.5",
     "uint8arrays": "^3.0.0",
     "varint": "^6.0.0"

src/convert.ts

@@ -4,6 +4,7 @@ import { getProtocol } from './protocols-table.js'
 import { CID } from 'multiformats/cid'
 import { base32 } from 'multiformats/bases/base32'
 import { base58btc } from 'multiformats/bases/base58'
+import * as MB from 'multibase'
 import * as Digest from 'multiformats/hashes/digest'
 import varint from 'varint'
 import { toString as uint8ArrayToString } from 'uint8arrays/to-string'
@@ -51,6 +52,8 @@ export function convertToString (proto: number | string, buf: Uint8Array) {
       return bytes2onion(buf)
     case 445: // onion3
       return bytes2onion(buf)
+    case 466: //certhash
+      return bytes2mh(buf)
     default:
       return uint8ArrayToString(buf, 'base16') // no clue. convert to hex
   }
@@ -84,6 +87,8 @@ export function convertToBytes (proto: string | number, str: string) {
       return onion2bytes(str)
     case 445: // onion3
       return onion32bytes(str)
+    case 466: //certhash
+      return mb2bytes(str)
     default:
       return uint8ArrayFromString(str, 'base16') // no clue. convert from hex
   }
@@ -148,6 +153,12 @@ function mh2bytes (hash: string) {
   return uint8ArrayConcat([size, mh], size.length + mh.length)
 }
 
+function mb2bytes(mbstr: string) {
+  let mb = MB.decode(mbstr)
+  const size = Uint8Array.from(varint.encode(mb.length))
+  return uint8ArrayConcat([size, mb], size.length + mb.length)
+}
+
 /**
  * Converts bytes to bas58btc string
  */

src/protocols-table.ts

@@ -25,6 +25,7 @@ export const table: Array<[number, number, string, boolean?, boolean?]> = [
   [275, 0, 'p2p-webrtc-star'],
   [276, 0, 'p2p-webrtc-direct'],
   [277, 0, 'p2p-stardust'],
+  [280, 0, 'webrtc'],
   [290, 0, 'p2p-circuit'],
   [301, 0, 'udt'],
   [302, 0, 'utp'],
@@ -40,6 +41,7 @@ export const table: Array<[number, number, string, boolean?, boolean?]> = [
   [445, 296, 'onion3'],
   [446, V, 'garlic64'],
   [460, 0, 'quic'],
+  [466, V, 'certhash'],
   [477, 0, 'ws'],
   [478, 0, 'wss'],
   [479, 0, 'p2p-websocket-star'],