local ip checking helper

couchpotato/core/helpers/variable.py

@@ -106,6 +106,11 @@ def md5(text):
 def sha1(text):
     return hashlib.sha1(text).hexdigest()
 
+def isLocalIP(ip):
+    ip = ip.lstrip('htps:/')
+    regex = '/(^127\.)|(^192\.168\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^::1)$/'
+    return re.search(regex, ip) is not None or 'localhost' in ip or ip[:4] == '127.'
+
 def getExt(filename):
     return os.path.splitext(filename)[1][1:]