base.py 文件源码

def prepare(self):
        if self.request.method == 'OPTIONS':
            return

        auth_header = self.request.headers.get('Authorization')
        if not auth_header or not auth_header.startswith('Basic '):
            raise exceptions.HTTPError(401, 'Unauthenticated')

        decoded = unquote_plus(base64.decodestring(auth_header[6:]))
        client_id, client_secret = decoded.split(':', 1)

        service = yield Service.authenticate(client_id, client_secret)
        if not service:
            raise exceptions.HTTPError(401, 'Unauthenticated')

        self.request.client_id = client_id
        self.request.client = service

        grant_type = self.request.body_arguments.get('grant_type', [None])[0]
        self.request.grant_type = grant_type