Add user interface (#6)

- Add user interface
- Add L386
- Fix pysnmp for newer python versions
- Add requirements.txt
- Add printer discovery script
- Add UI script
- Fix ping opening window in pyinstaller exe
- remove scapy from requirements.txt
- improve comment formatting
- scan all local ips
- Fix power off timer write function
- Update L386 config

find_printers.py

@@ -0,0 +1,81 @@
+import os
+import socket
+import subprocess
+import threading
+import warnings
+
+from epson_print_conf import EpsonPrinter
+
+
+# suppress pysnmp warnings
+warnings.filterwarnings("ignore", category=SyntaxWarning)
+
+# common printer ports
+PRINTER_PORTS = [9100, 515, 631]
+
+class PrinterScanner:
+
+    def ping(self, host):
+        result = subprocess.run(['ping', '-n', '1', host], stdout=subprocess.PIPE, creationflags=subprocess.CREATE_NO_WINDOW)
+        return 'Reply from' in result.stdout.decode('utf-8')
+
+    def check_printer(self, ip, port):
+        try:
+            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            sock.settimeout(1)
+            sock.connect((ip, port))
+            sock.close()
+            return True
+        except socket.error:
+            return False
+
+    def get_printer_name(self, ip):
+        printer = EpsonPrinter(hostname=ip)
+        try:
+            printer_info = printer.get_snmp_info("Model")
+            return printer_info["Model"]
+        except:
+            return None
+
+    def scan_ip(self, ip):
+        if self.ping(ip):
+            for port in PRINTER_PORTS:
+                if self.check_printer(ip, port):
+                    try:
+                        hostname = socket.gethostbyaddr(ip)[0]
+                    except socket.herror:
+                        hostname = "Unknown"
+
+                    printer_name = self.get_printer_name(ip)
+                    if printer_name:
+                        return {"ip": ip, "hostname": hostname, "name": printer_name}
+                    else:
+                        return {"ip": ip, "hostname": hostname, "name": "Unknown"}
+        return None
+    def get_all_printers(self):
+        local_device_ip_list = socket.gethostbyname_ex(socket.gethostname())[2]
+        for local_device_ip in local_device_ip_list:
+            base_ip = local_device_ip[:local_device_ip.rfind('.') + 1]
+            ips=[f"{base_ip}{i}" for i in range(1, 255)]
+            printers = []
+            threads = []
+
+            def worker(ip):
+                result = self.scan_ip(ip)
+                if result:
+                    printers.append(result)
+
+            for ip in ips:
+                thread = threading.Thread(target=worker, args=(ip,))
+                threads.append(thread)
+                thread.start()
+
+            for thread in threads:
+                thread.join()
+
+        return printers
+
+
+if __name__ == "__main__":
+    scanner = PrinterScanner()
+    print(scanner.get_all_printers())