abstract server a bit better

http_server.ts

@@ -2,23 +2,11 @@ import { RemoteInfo } from "node:dgram";
 import { createWriteStream } from "node:fs";
 import http from "node:http";
 
-import { CommandsByValue } from "./datatypes.js";
-import { hexdump } from "./hexdump.js";
 import { create_LanSearch, create_P2pAlive } from "./impl.js";
 import { Handlers, makeSession } from "./server.js";
 
 const s = makeSession(
-  (session, msg, rinfo, options) => {
-    const ab = new Uint8Array(msg).buffer;
-    const dv = new DataView(ab);
-    const cmd = CommandsByValue[dv.readU16()];
-    if (options.debug) {
-      console.log(`<< ${cmd}`);
-      console.log(hexdump(msg.buffer, { ansi: options.ansi, ansiColor: 1 }));
-    }
-    Handlers[cmd](session, dv, rinfo);
-    session.lastReceivedPacket = Date.now();
-  },
+  Handlers,
   (session) => {
     // ther should be a better way of executing periodic status update
     // requests per device

server.ts

@@ -2,7 +2,6 @@ import { createSocket, RemoteInfo } from "node:dgram";
 import { Commands, CommandsByValue } from "./datatypes.js";
 import { handle_P2PAlive, handle_PunchPkt, handle_P2PRdy, handle_Drw, notImpl, noop } from "./handlers.js";
 import { hexdump } from "./hexdump.js";
-import { SendDevStatus } from "./impl.js";
 import EventEmitter from "node:events";
 
 export type Session = {
@@ -22,10 +21,32 @@ type opt = {
   ansi: boolean;
 };
 
-type msgCb = (session: Session, msg: Buffer, rinfo: RemoteInfo, options: opt) => void;
+type msgCb = (
+  session: Session,
+  handlers: Record<keyof typeof Commands, PacketHandler>,
+  msg: Buffer,
+  rinfo: RemoteInfo,
+  options: opt,
+) => void;
 type connCb = (session: Session) => void;
 
-export const makeSession = (cb: msgCb, connCb: connCb, options: opt): Session => {
+const handleIncoming: msgCb = (session, handlers, msg, rinfo, options) => {
+  const ab = new Uint8Array(msg).buffer;
+  const dv = new DataView(ab);
+  const cmd = CommandsByValue[dv.readU16()];
+  if (options.debug) {
+    console.log(`<< ${cmd}`);
+    console.log(hexdump(msg.buffer, { ansi: options.ansi, ansiColor: 1 }));
+  }
+  handlers[cmd](session, dv, rinfo);
+  session.lastReceivedPacket = Date.now();
+};
+
+export const makeSession = (
+  handlers: Record<keyof typeof Commands, PacketHandler>,
+  connCb: connCb,
+  options: opt,
+): Session => {
   const sock = createSocket("udp4");
 
   sock.on("error", (err) => {
@@ -33,7 +54,7 @@ export const makeSession = (cb: msgCb, connCb: connCb, options: opt): Session =>
     sock.close();
   });
 
-  sock.on("message", (msg, rinfo) => cb(session, msg, rinfo, options));
+  sock.on("message", (msg, rinfo) => handleIncoming(session, handlers, msg, rinfo, options));
 
   sock.on("listening", () => {
     const address = sock.address();
@@ -43,7 +64,8 @@ export const makeSession = (cb: msgCb, connCb: connCb, options: opt): Session =>
   });
 
   const RECV_PORT = 49512; // important?
-  const BCAST_IP = "192.168.1.255";
+  //const BCAST_IP = "192.168.1.255";
+  const BCAST_IP = "192.168.40.101";
   const SEND_PORT = 32108;
   sock.bind(RECV_PORT);
 
@@ -76,20 +98,18 @@ export const makeSession = (cb: msgCb, connCb: connCb, options: opt): Session =>
 
 export const Handlers: Record<keyof typeof Commands, PacketHandler> = {
   PunchPkt: handle_PunchPkt,
+  P2PAlive: handle_P2PAlive,
+  P2pRdy: handle_P2PRdy,
+  DrwAck: noop,
+  Drw: handle_Drw,
 
   Close: notImpl,
   LanSearchExt: notImpl,
   LanSearch: notImpl,
-  P2PAlive: handle_P2PAlive,
   P2PAliveAck: notImpl,
   Hello: notImpl,
-  P2pRdy: handle_P2PRdy,
   P2pReq: notImpl,
   LstReq: notImpl,
-  DrwAck: noop,
-  Drw: handle_Drw,
-
-  // From CSession_CtrlPkt_Proc, incomplete
   PunchTo: notImpl,
   HelloAck: notImpl,
   RlyTo: notImpl,