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import os
import struct
from calendar import timegm
from datetime import datetime
def utc_timestamp():
return timegm(datetime.utcnow().utctimetuple())
def key_path(key_name):
return os.path.join(
os.path.dirname(os.path.realpath(__file__)), "keys", key_name
)
# Borrowed from `cryptography`
if hasattr(int, "from_bytes"):
int_from_bytes = int.from_bytes
else:
def int_from_bytes(data, byteorder, signed=False):
assert byteorder == "big"
assert not signed
if len(data) % 4 != 0:
data = (b"\x00" * (4 - (len(data) % 4))) + data
result = 0
while len(data) > 0:
digit, = struct.unpack(">I", data[:4])
result = (result << 32) + digit
data = data[4:]
return result
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