server.py 文件源码

def generate_auth_token(self, user_id):
        """Generate an auth token for the user."""
        user = await self.db.execute('SELECT * FROM user WHERE id = ?;', user_id)
        if user:
            user = user[0]
            token_data = bytes((user[1] + ':' + ':' + str(now().timestamp())), 'utf8')
            token = hashlib.blake2b(digest_size=16, key=self.private_key)
            token.update(token_data)
            token = '{0}:{1}'.format(token.hexdigest(), user[1])
            token_base64 = base64.b64encode(bytes(token, 'utf8')).decode("utf-8")
            await self.db.execute('UPDATE user SET token=? WHERE id = ?;', token_base64, user_id)
            return token_base64
        else:
            raise HTTPError(401, 'Cannot locate user with id "{}"'.format(user_id))