use net.listen() pubkey field

lib/plugin-hub.cjs

@@ -17,21 +17,6 @@ function ErrorDuplex(message) {
   }
 }
 
-/**
- * @param {string} addresses
- * @returns {string | undefined}
- */
-function extractSHSEPubkey(addresses) {
-  for (const address of addresses.split(';')) {
-    for (const [transport, transform] of address.split('~')) {
-      const [name, pubkey, extra] = transform.split(':')
-      if (name === 'shse') {
-        return pubkey
-      }
-    }
-  }
-}
-
 module.exports = {
   name: 'hub',
   version: '1.0.0',
@@ -84,7 +69,7 @@ module.exports = {
       pull.filter(
         ({ type }) => type === 'connecting-failed' || type === 'disconnected'
       ),
-      pull.map(({ address }) => extractSHSEPubkey(address)),
+      pull.map(({ pubkey }) => pubkey),
       pull.filter((pubkey) => !!pubkey && attendants.has(pubkey)),
       pull.drain((pubkey) => {
         debug('farewell %s', pubkey)