+ install as service

src/setcamtime.py

@@ -4,6 +4,48 @@ from datetime import datetime, timedelta
 import logging
 import argparse
 import time
+import sys
+import shutil
+import os
+
+DST_FILE_NAME = "/usr/setcamtime"
+SERVICE_FILENAME = "/etc/systemd/system/setcamtime.service"
+SERVICE_TEMPLATE = """
+[Unit]
+Description=Webcam time sync service
+After=network.target
+
+[Service]
+Type=simple
+Restart=always
+ExecStart=%CMDLINE%
+[Install]
+WantedBy=multi-user.target
+"""
+
+
+def install_service():
+    uninstall_service()
+    # if not os.path.isfile(DST_FILE_NAME):
+    os.system("systemctl stop setcamtime")
+    os.system("systemctl disable setcamtime")
+    shutil.copy(sys.argv[0], DST_FILE_NAME)
+    service = SERVICE_TEMPLATE.replace(
+        "%CMDLINE%",
+        f"{DST_FILE_NAME} -d -a {args.address} -p {args.port} -s {args.hysteresis} -l {args.login} -w {args.password} -i {args.interval}",
+    )
+    with open(SERVICE_FILENAME, "w", encoding="UTF-8") as f:
+        f.write(service)
+    os.system("systemctl enable setcamtime")
+    os.system("systemctl start setcamtime")
+
+
+def uninstall_service():
+    os.system("systemctl stop setcamtime")
+    os.system("systemctl disable setcamtime")
+    if os.path.exists(SERVICE_FILENAME):
+        os.remove(SERVICE_FILENAME)
+
 
 log = logging.getLogger(__name__)
 # logging.basicConfig(filename='app.log', level=logging.INFO)
@@ -16,18 +58,18 @@ logging.basicConfig(
 )
 
 
-def setCamTime(cam_addr: str, port: int, hysteresis: int, login:str, password:str):
+def setCamTime(cam_addr: str, port: int, hysteresis: int, login: str, password: str):
     with Telnet(cam_addr, port) as tn:
         tn.read_until(b"login: ")
-        tn.write((login+"\n").encode("ascii"))
+        tn.write((login + "\n").encode("ascii"))
         tn.read_until(b"Password:")
-        tn.write((password+"\n").encode("ascii"))
+        tn.write((password + "\n").encode("ascii"))
         # tn.read_until(b"[/app]#")
         r = tn.expect([b"\[/app\]\#", b"Login incorrect"])
         if r[0] != 0:
-            log.error('Ошибка аутентификации')
+            log.error("Ошибка аутентификации")
             return
-        now = datetime.now() + timedelta(hours=3)
+        now = datetime.now()# + timedelta(hours=3)
         tn.write("date +%Y%m%d%H%M%S\n".encode("ascii"))
         ds = tn.read_until(b"[/app]#").decode("ascii").split("\n")[1].strip()
         d = datetime.strptime(ds, "%Y%m%d%H%M%S") - timedelta(hours=5)
@@ -54,8 +96,15 @@ parser.add_argument(
 parser.add_argument("-a", "--address", type=str, help="Camera address", required=True)
 parser.add_argument("-p", "--port", type=int, help="Camera port", default=23)
 parser.add_argument("-d", "--daemon", action="store_true", help="daemon mode")
-parser.add_argument("-l", "--login", type=str, help="login", default='root')
-parser.add_argument("-w", "--password", type=str, help="password")
+parser.add_argument("-l", "--login", type=str, help="login", default="root")
+parser.add_argument("-w", "--password", type=str, help="password", required=True)
+parser.add_argument(
+    "--install", action="store_true", help="Инсталлировать сервис (systemd)"
+)
+parser.add_argument(
+    "--uninstall", action="store_true", help="Деинсталлировать сервис (systemd)"
+)
+
 parser.add_argument(
     "-i",
     "--interval",
@@ -65,6 +114,15 @@ parser.add_argument(
 )
 args = parser.parse_args()
 
+if args.uninstall:
+    uninstall_service()
+    exit(0)
+
+
+if args.install:
+    install_service()
+    exit(0)
+
 if not args.daemon:
     setCamTime(args.address, args.port, args.hysteresis, args.login, args.password)
 else:
@@ -72,7 +130,9 @@ else:
     while True:
         log.info(f"Старт синхронизации времени")
         try:
-            setCamTime(args.address, args.port, args.hysteresis, args.login, args.password)
+            setCamTime(
+                args.address, args.port, args.hysteresis, args.login, args.password
+            )
         except Exception as e:
             log.error(f"Ошибка синхронизации времени {e}")
         log.info(f"Ожидание {args.interval}сек.")