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gns3-server/gns3server/web/response.py
2015-01-20 20:54:46 +01:00

57 lines
2.0 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import json
import jsonschema
import aiohttp.web
import logging
log = logging.getLogger(__name__)
class Response(aiohttp.web.Response):
def __init__(self, route=None, output_schema=None, headers={}, **kwargs):
self._route = route
self._output_schema = output_schema
headers['X-Route'] = self._route
super().__init__(headers=headers, **kwargs)
"""
Set the response content type to application/json and serialize
the content.
:param anwser The response as a Python object
"""
def json(self, answer):
"""Pass a Python object and return a JSON as answer"""
self.content_type = "application/json"
if hasattr(answer, '__json__'):
answer = answer.__json__()
if self._output_schema is not None:
try:
jsonschema.validate(answer, self._output_schema)
except jsonschema.ValidationError as e:
log.error("Invalid output schema {} '{}' in schema: {}".format(e.validator,
e.validator_value,
json.dumps(e.schema)))
raise aiohttp.web.HTTPBadRequest(text="{}".format(e))
self.body = json.dumps(answer, indent=4, sort_keys=True).encode('utf-8')