share command

app/nose/bin/share.ts

@@ -0,0 +1,14 @@
+import { apps } from "app/src/webapp"
+import { connectSneaker } from "app/src/sneaker"
+
+export default async function (app: string) {
+  if (!app) {
+    return `usage: share <app>`
+  }
+
+  if (!apps().includes(app)) {
+    return { error: `${app} not found` }
+  }
+
+  return await connectSneaker(app)
+}

app/src/sneaker.ts

@@ -1,21 +1,47 @@
-import app from "./server"
+import nose from "./server"
 
+// const SNEAKER_URL = "sneaker-ep2i.onrender.com"
+// const SNEAKER_TLS = true
 const SNEAKER_URL = "localhost:3100"
+const SNEAKER_TLS = false
 
-const ws = new WebSocket(`ws://${SNEAKER_URL}/tunnel`)
+type Connection = {
+    subdomain: string
+    ws: any
+}
+const connections: Record<string, Connection> = {}
 
-ws.onerror = e => console.log("sneaker error", e)
+// returns the sneaker subdomain if successful
+export async function connectSneaker(app: string): Promise<string> {
+    if (connections[app]) {
+        return connections[app].subdomain
+    }
+
+    const ws = new WebSocket(`ws${SNEAKER_TLS ? "s" : ""}://${SNEAKER_URL}/tunnel?app=${app}`)
+    let resolve: (v: string) => void
+    let promise = new Promise<string>(res => resolve = res)
+
+    ws.onclose = (e) => delete connections[app]
+
+    ws.onerror = e => console.error("sneaker error", e)
 
     ws.onmessage = async event => {
         const msg = JSON.parse(event.data.toString())
+
+        if (msg.subdomain) {
+            connections[app] = { subdomain: "", ws }
+            resolve(msg.subdomain)
+            return
+        }
+
         try {
-        const req = new Request("http://localhost" + msg.path, {
+            const req = new Request(`http://${msg.app}.localhost` + msg.path, {
                 method: msg.method,
                 headers: msg.headers,
                 body: msg.body || undefined,
             })
 
-        const res = await app.fetch(req)
+            const res = await nose.fetch(req)
 
             const body = await res.text()
             const headers: Record<string, string> = {}
@@ -36,3 +62,6 @@ ws.onmessage = async event => {
             }))
         }
     }
+
+    return promise
+}