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import hashlib
import socket
from .python_3x import url_encode
# define constants
CONFIGURATIONS = "configurations"
NOTIFICATION_ID = "notificationId"
NAMESPACE_NAME = "namespaceName"
# add timestamps uris and keys
def signature(timestamp, uri, secret):
import base64
import hmac
string_to_sign = "" + timestamp + "\n" + uri
hmac_code = hmac.new(secret.encode(), string_to_sign.encode(), hashlib.sha1).digest()
return base64.b64encode(hmac_code).decode()
def url_encode_wrapper(params):
return url_encode(params)
def no_key_cache_key(namespace, key):
return "{}{}{}".format(namespace, len(namespace), key)
# Returns whether the obtained value is obtained, and None if it does not
def get_value_from_dict(namespace_cache, key):
if namespace_cache:
kv_data = namespace_cache.get(CONFIGURATIONS)
if kv_data is None:
return None
if key in kv_data:
return kv_data[key]
return None
def init_ip():
ip = ""
s = None
try:
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(("8.8.8.8", 53))
ip = s.getsockname()[0]
finally:
if s:
s.close()
return ip
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