only return correct peer type from swarm

Author: feross

lib/swarm.js

@@ -20,10 +20,11 @@ Swarm.prototype.announce = function (params, cb) {
   if (self[fn]) {
     self[fn](params, peer) // process event
 
+    var peerType = params.compact === undefined ? 'webrtc' : 'addr'
     cb(null, {
       complete: self.complete,
       incomplete: self.incomplete,
-      peers: self._getPeers(params.numwant)
+      peers: self._getPeers(params.numwant, peerType)
     })
   } else {
     cb(new Error('invalid event'))
@@ -93,13 +94,16 @@ Swarm.prototype._onAnnounce_update = function (params, peer) {
   }
 }
 
-Swarm.prototype._getPeers = function (numWant) {
+Swarm.prototype._getPeers = function (numWant, peerType) {
   var peers = []
   var ite = randomIterate(Object.keys(this.peers))
   while (true) {
     var peerId = ite()
     if (peers.length >= numWant || peerId == null) return peers
     var peer = this.peers[peerId]
-    if (peer) peers.push(peer)
+    if (peer &&
+        ((peerType === 'webrtc' && peer.socket) || (peerType === 'addr' && peer.ip))) {
+      peers.push(peer)
+    }
   }
 }