From c3ab08dcc1169664466b93d5f62770160bcc4ad2 Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart.allen@gmail.com>
Date: Sun, 26 Jan 2025 11:52:52 -0500
Subject: [PATCH] update ssdp helper to allow for multiple printers

---
 mods/bambu/ssdp.js | 109 +++++++++++++++++++++------------------------
 1 file changed, 52 insertions(+), 57 deletions(-)

diff --git a/mods/bambu/ssdp.js b/mods/bambu/ssdp.js
index a902bd4d..20dbbf60 100644
--- a/mods/bambu/ssdp.js
+++ b/mods/bambu/ssdp.js
@@ -9,9 +9,9 @@
  * under the slicer Devices tab when "+" is selected.
  */
 
-const [ name, host, serial ] = process.argv.slice(2);
+let args = process.argv.slice(2);
 
-if (!(name && host && serial)) {
+if (args.length % 3 !== 0) {
     console.log([
         'usage: ssdp [name] [host] [serial-no]',
         'where:',
@@ -22,13 +22,6 @@ if (!(name && host && serial)) {
     return process.exit(0);
 }
 
-console.log([
-    `Broadcasting Bambu Printer`,
-    `Name: ${name}`,
-    `Host: ${host}`,
-    `Serial: ${serial}`,
-].join('\n'));
-
 const dgram = require("dgram");
 
 // SSDP parameters
@@ -38,58 +31,60 @@ const SSDP_PORT = 1900;
 // Create a UDP socket
 const socket = dgram.createSocket("udp4");
 
-// SSDP discovery message
-const ssdpMessage = `
-NOTIFY * HTTP/1.1
-HOST: ${SSDP_ADDRESS}:${SSDP_PORT}
-Server: UPnP/1.0
-Location: ${host}
-NT: urn:bambulab-com:device:3dprinter:1
-USN: ${serial}
-Cache-Control: max-age=1800
-DevModel.bambu.com: C11
-DevName.bambu.com: ${name}
-DevSignal.bambu.com: -66
-DevConnect.bambu.com: lan
-DevBind.bambu.com: free
-Devseclink.bambu.com: secure
-DevVersion.bambu.com: 01.07.00.00
-DevCap.bambu.com: 1`
-.trim().split('\n').join("\r\n") + "\r\n\r\n";
-
-function send(socket, addr, port) {
-
-    // Send the SSDP broadcast
-    socket.send(
-        ssdpMessage,
-        0,
-        ssdpMessage.length,
-        port,
-        addr,
-        (err) => {
-            if (err) {
-                console.error("Error sending SSDP broadcast:", err);
-            } else {
-                // console.log(`>>>>>>>>>>>>>>>>> ${addr} : ${port}`);
-            }
-        }
-    );
-}
-
 socket.on("error", error => console.log({ error }));
 
-// Handle responses from devices
-socket.on("message", (msg, rinfo) => {
-    // console.log(`<<<<<<<<<<<<<<<<< ${rinfo.address} : ${rinfo.port}`);
-    // console.log(msg.toString().trim());
-    // console.log('<<<<<<<<<<<<<<<<<');
-});
-
 // Bind the socket and join the multicast group
 socket.bind(1900, () => {
     socket.addMembership(SSDP_ADDRESS); // Join the SSDP multicast group
-    setInterval(() => send(socket, '239.255.255.250', 2021), 1000);
-    // setInterval(() => send(socket, '239.255.255.250', 1990), 2000);
-    // setInterval(() => send(socket, '255.255.255.255', 2021), 2000);
 });
 
+while (args.length) {
+    const [name, host, serial] = args;
+    args = args.slice(3);
+
+    console.log([
+        `Broadcasting Bambu Printer`,
+        `Name: ${name}`,
+        `Host: ${host}`,
+        `Serial: ${serial}`,
+    ].join('\n'));
+
+    // SSDP discovery message
+    const ssdpMessage = `
+    NOTIFY * HTTP/1.1
+    HOST: ${SSDP_ADDRESS}:${SSDP_PORT}
+    Server: UPnP/1.0
+    Location: ${host}
+    NT: urn:bambulab-com:device:3dprinter:1
+    USN: ${serial}
+    Cache-Control: max-age=1800
+    DevModel.bambu.com: C11
+    DevName.bambu.com: ${name}
+    DevSignal.bambu.com: -66
+    DevConnect.bambu.com: lan
+    DevBind.bambu.com: free
+    Devseclink.bambu.com: secure
+    DevVersion.bambu.com: 01.07.00.00
+    DevCap.bambu.com: 1`
+        .trim().split('\n').join("\r\n") + "\r\n\r\n";
+
+    // Send the SSDP broadcast
+    function send(socket, addr, port) {
+        socket.send(
+            ssdpMessage,
+            0,
+            ssdpMessage.length,
+            port,
+            addr,
+            (err) => {
+                if (err) {
+                    console.error("Error sending SSDP broadcast:", err);
+                } else {
+                    // console.log(`>>>>>>>>>>>>>>>>> ${addr} : ${port}`);
+                }
+            }
+        );
+    }
+
+    setInterval(() => send(socket, '239.255.255.250', 2021), 1000);
+}