feat: dns discovery bootstrap

Author: kaichaosun

examples/pingpong.nim

@@ -22,8 +22,8 @@ proc main() {.async.} =
   var cfg_raya = DefaultConfig()
 
   # Cross pollinate Peers - No Waku discovery is used in this example
-  cfg_saro.staticPeers.add(cfg_raya.getMultiAddr())
-  cfg_raya.staticPeers.add(cfg_saro.getMultiAddr())
+  # cfg_saro.staticPeers.add(cfg_raya.getMultiAddr())
+  # cfg_raya.staticPeers.add(cfg_saro.getMultiAddr())
 
   let sKey = loadPrivateKeyFromBytes(@[45u8, 216, 160, 24, 19, 207, 193, 214, 98, 92, 153, 145, 222, 247, 101, 99, 96, 131, 149, 185, 33, 187, 229, 251, 100, 158, 20, 131, 111, 97, 181, 210]).get()
   let rKey = loadPrivateKeyFromBytes(@[43u8, 12, 160, 51, 212, 90, 199, 160, 154, 164, 129, 229, 147, 69, 151, 17, 239, 51, 190, 33, 86, 164, 50, 105, 39, 250, 182, 116, 138, 132, 114, 234]).get()
@@ -79,7 +79,7 @@ proc main() {.async.} =
   let raya_bundle = raya.createIntroBundle()
   discard await saro.newPrivateConversation(raya_bundle)
 
-  await sleepAsync(20.seconds) # Run for some time 
+  await sleepAsync(200.seconds) # Run for some time 
 
   saro.stop()
   raya.stop()

examples/tui/tui.nim

@@ -106,9 +106,9 @@ proc getSelectedConvo(app: ChatApp): ptr ConvoInfo =
 
 proc createChatClient(name: string): Future[Client] {.async.} =
   var cfg = await getCfg(name)
-  for key, val in fetchRegistrations():
-    if key != name:
-      cfg.waku.staticPeers.add(val)
+  # for key, val in fetchRegistrations():
+  #   if key != name:
+  #     cfg.waku.staticPeers.add(val)
 
   result = newClient(cfg.waku, cfg.ident)
 
@@ -124,7 +124,7 @@ proc sendMessage(app: ChatApp, convoInfo: ptr ConvoInfo, msg: string) {.async.}
 
   var msgId = ""
   if convoInfo.convo != nil:
-    msgId = await convoInfo.convo.sendMessage(app.client.ds, initTextFrame(msg).toContentFrame())
+    msgId = await convoInfo.convo.sendMessage(initTextFrame(msg).toContentFrame())
 
   convoInfo[].addMessage(msgId, "You", app.inputBuffer)
 
@@ -490,7 +490,7 @@ proc appLoop(app: ChatApp, panes: seq[Pane]) : Future[void] {.async.} =
   illwillInit(fullscreen = false)
   # Clear buffer
   while true:
-    await sleepAsync(5.milliseconds)
+    await sleepAsync(chronos.milliseconds(5))
     app.tb.clear()
 
     drawStatusBar(app, panes[0], fgBlack, getIdColor(app.client.getId()))
@@ -527,7 +527,7 @@ proc appLoop(app: ChatApp, panes: seq[Pane]) : Future[void] {.async.} =
 
 proc peerWatch(app: ChatApp): Future[void] {.async.} =
   while true:
-    await sleepAsync(1.seconds)
+    await sleepAsync(chronos.seconds(1))
     app.peerCount = app.client.ds.getConnectedPeerCount()
 
 

src/chat/client.nim

@@ -15,6 +15,12 @@ import # Foreign
   tables,
   types
 
+import
+  waku/[
+    waku_node,
+    discovery/waku_dnsdisc
+  ]
+
 import #local
   conversations,
   conversations/convo_impl,
@@ -44,7 +50,7 @@ type
 
 type KeyEntry* = object
   keyType: string
-  privateKey: PrivateKey
+  privateKey: crypto.PrivateKey
   timestamp: int64
 
 type Client* = ref object
@@ -287,6 +293,17 @@ proc start*(client: Client) {.async.} =
 
   client.isRunning = true
 
+  let dnsDiscoveryUrl = "enrtree://AIRVQ5DDA4FFWLRBCHJWUWOO6X6S4ZTZ5B667LQ6AJU6PEYDLRD5O@sandbox.waku.nodes.status.im"
+  let nameServer = parseIpAddress("1.1.1.1")
+  let discoveredPeers = await retrieveDynamicBootstrapNodes(dnsDiscoveryUrl, @[nameServer])
+  if discoveredPeers.isOk:
+    info "Connecting to discovered peers"
+    let remotePeers = discoveredPeers.get()
+    info "Discovered and connecting to peers", peerCount = remotePeers.len
+    asyncSpawn client.ds.node.connectToNodes(remotePeers)
+  else:
+    warn "Failed to find peers via DNS discovery", error = discoveredPeers.error
+
   asyncSpawn client.messageQueueConsumer()
 
   notice "Client start complete", client = client.getId()