def get_can_whisper_to_user(self, sender_id: str, target_user_name: str):
key = RedisKeys.can_whisper_to(sender_id)
cache_key = '%s-%s' % (key, target_user_name)
can_whisper_and_reason = self.cache.get(cache_key)
if can_whisper_and_reason is not None:
can_whisper, reason_code = can_whisper_and_reason
return can_whisper, reason_code
can_whisper = self.redis.hget(key, target_user_name)
if can_whisper is None:
return None, None
can_whisper, reason_code = str(can_whisper, 'utf-8').split('|')
return can_whisper == '1', reason_code
def set_can_whisper_to_user(self, sender_id: str, target_user_name: str,
allowed: bool, reason_code: int) -> None:
# if not allowed, we need to check remote system, maybe they will soon be allowed
if not allowed:
return
key = RedisKeys.can_whisper_to(sender_id)
cache_key = '%s-%s' % (key, target_user_name)
can_whisper_and_reason = '|'.join(
['1' if allowed else '0',
str(reason_code)])
self.cache.set(cache_key, (allowed, reason_code), ttl=ONE_HOUR)
self.redis.hset(key, target_user_name, can_whisper_and_reason)
self.redis.expire(key, EIGHT_HOURS_IN_SECONDS)
