Adding basic function to add printers by IP

main.py

@@ -1,4 +1,4 @@
-from flask import Flask, Response, request, stream_with_context
+from flask import Flask, Response, request, stream_with_context, jsonify
 from werkzeug.utils import secure_filename
 from flask_socketio import SocketIO
 from threading import Thread
@@ -299,6 +299,45 @@ def ws_msg_handler(ws, msg):
         logger.warning("--- UNKNOWN MESSAGE ---")
 
 
+def discover_printer_by_ip(ip):
+    logger.info(f"Starting printer discovery for IP: {ip}")
+    msg = b'M99999'
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)  # UDP
+    sock.settimeout(discovery_timeout)
+    sock.sendto(msg, (ip, 3000))
+    try:
+        data = sock.recv(8192)
+        printer = save_discovered_printer(data)
+        logger.info(f"Discovery done for IP: {ip}")
+        return printer
+    except TimeoutError:
+        logger.error(f"Discovery timeout for IP: {ip}")
+        return None
+    finally:
+        sock.close()
+
+# Example usage:
+# printer = discover_printer_by_ip('192.168.1.100')
+# if printer:
+#     connect_printers({printer['connection']: printer})
+#     socketio.emit('printers', printers)
+
+
+@app.route('/add_printer', methods=['POST'])
+def add_printer():
+    ip = request.form.get('ip')
+    if not ip:
+        return jsonify({'error': 'IP address is required'}), 400
+
+    printer = discover_printer_by_ip(ip)
+    if printer:
+        connect_printers(printer)
+        socketio.emit('printers', printers)
+        return jsonify({'success': True, 'printer': printer})
+    else:
+        return jsonify({'error': 'Printer discovery failed'}), 500
+
+
 def main():
     printers = discover_printers()
     if printers:

web/index.html

@@ -76,6 +76,23 @@
         </a>
 
         <div id="printersList" class="list-group list-group-flush border-bottom scrollarea"></div>
+
+        <div class="container mt-3">
+          <div class="card">
+            <div class="card-header">
+              Add Printer by IP
+            </div>
+            <div class="card-body">
+              <form id="formAddPrinter">
+                <div class="mb-3">
+                  <label for="printerIp" class="form-label">Printer IP Address</label>
+                  <input type="text" class="form-control" id="printerIp" name="ip" placeholder="Enter printer IP address" required>
+                </div>
+                <button type="submit" class="btn btn-primary">Add Printer</button>
+              </form>
+            </div>
+          </div>
+        </div>
       </div>
       <!-- main column -->
       <div class="container w-100">

web/js/chitui.js

@@ -393,3 +393,27 @@ function fileTransferProgress() {
     new bootstrap.Tooltip(tooltipTriggerEl)
   })
 })()
+
+$(document).ready(function() {
+  $('#formAddPrinter').on('submit', function(event) {
+    event.preventDefault();
+    var ip = $('#printerIp').val();
+    $.ajax({
+      url: '/add_printer',
+      type: 'POST',
+      data: { ip: ip },
+      success: function(response) {
+        if (response.success) {
+          alert('Printer added successfully!');
+          // Optionally, refresh the printer list
+          socket.emit("printers", "{}");
+        } else {
+          alert('Failed to add printer: ' + response.error);
+        }
+      },
+      error: function(xhr, status, error) {
+        alert('Error: ' + error);
+      }
+    });
+  });
+});