add: web-ntp client

tool/web-ntp.py

@@ -0,0 +1,114 @@
+import urllib.request
+
+import random
+import sys
+import os
+
+from datetime import datetime
+from datetime import timedelta
+
+import dateutil.parser
+
+import sys
+def cprint(*text,color="blue",space=" ",end="\n"):
+    #return 0 #disable print dbg
+    if not color:
+        print(text)
+        return 0
+
+    if color == "green":
+        txt = '\033[92m'
+    elif color == "red":
+        txt = '\033[0;31m\033[1m'
+    elif color == "yellow":
+        txt = '\033[93m\033[1m'
+    elif color == "cyan":
+        txt = '\033[96m'
+    else:
+        txt = '\033[94m'
+    for t in text:
+        txt += str(t ) +" "
+    #HEADER = '\033[95m'
+    #OKBLUE = '\033[94m'
+    #OKCYAN = '\033[96m'
+    #OKGREEN = '\033[92m'
+    #WARNING = '\033[93m'
+    #FAIL = '\033[91m'
+    #ENDC = '\033[0m'
+    #BOLD = '\033[1m'
+    #UNDERLINE = '\033[4m'
+    txt += '\033[0m'
+    print(txt,end=end)
+    #return txt
+    try:
+        sys.stdout.flush() # to grep output
+    except BrokenPipeError as e:
+        print("BROKEN PIPE ERROR CPRINT = EXIT")
+        #exit()
+
+
+host = "http://uxsrv.de"
+host = "http://librelight.de"
+#host = "https://google.com"
+host += "?r={}".format(random.randint(1_000_000_000,9_000_000_000))
+
+print(sys.argv)
+
+if "-v" in sys.argv:print(host)
+if "-v" in sys.argv:print()
+
+import ssl
+
+#ignore cert warning ... localtime is not correct
+ctx = ssl.create_default_context()
+ctx.check_hostname = False
+ctx.verify_mode = ssl.CERT_NONE
+
+now = datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S')
+now = dateutil.parser.parse(now)
+now = now.replace(tzinfo=None)
+try:
+    with urllib.request.urlopen(host,context=ctx) as response:
+       #print(dir(response) )
+       date = response.getheader("date")
+       if "-v" in sys.argv:print("response:".ljust(20," "),date)
+       
+       date = dateutil.parser.parse(date)
+       
+       date  = date.replace(tzinfo=None)
+       delta = date-now
+       if "-v" in sys.argv:print("delta:   ".ljust(20," "),delta,type(delta))
+       
+       #print( timedelta(seconds=100))
+       max_delta=timedelta(seconds=100)
+       min_delta=timedelta(seconds=-100)
+       print("-------")
+       print( delta > max_delta , delta < min_delta)
+       if delta > min_delta and delta < max_delta:
+           cprint(delta,"delta is OK",color="green")
+           exit()
+
+
+       cprint(delta,"delta is to high",color="red")
+
+       if "-v" in sys.argv:print("parse:   ".ljust(20," "),date)
+       date = date.strftime("%Y-%m-%d %H:%M:%S")
+
+       ndate = os.popen("date").read().strip()
+       print("current date: ".ljust(20," "),ndate)
+
+       # set local linux date
+       CMD = "/usr/bin/date -u -s '{}' > /dev/null ".format(date)
+       print("CMD:".ljust(20," "),CMD)
+       os.system(CMD)
+
+       date = os.popen("date").read().strip()
+       print("current date: ".ljust(20," "),date)
+
+       # set hwclock
+       date = os.popen("/usr/sbin/hwclock").read().strip()
+       print("hwclock: ".ljust(20," "),date)
+       date = os.popen("/usr/sbin/hwclock -w").read().strip()
+       print("hwclock: ".ljust(20," "),date)
+except Exception as e:
+    cprint("ERR",e,color="red")