mirror of
https://github.com/GNS3/gns3-server.git
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113 lines
3.9 KiB
Python
113 lines
3.9 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2015 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import json
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import jsonschema
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import asyncio
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import aiohttp.web
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import asyncio
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import logging
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import sys
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import jinja2
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from ..utils.get_resource import get_resource
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from ..version import __version__
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log = logging.getLogger(__name__)
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renderer = jinja2.Environment(loader=jinja2.FileSystemLoader(get_resource('templates')))
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class Response(aiohttp.web.Response):
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def __init__(self, request=None, route=None, output_schema=None, headers={}, **kwargs):
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self._route = route
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self._output_schema = output_schema
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self._request = request
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headers['X-Route'] = self._route
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headers['Server'] = "Python/{0[0]}.{0[1]} GNS3/{1}".format(sys.version_info, __version__)
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super().__init__(headers=headers, **kwargs)
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@asyncio.coroutine
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def prepare(self, request):
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if log.getEffectiveLevel() == logging.DEBUG:
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log.info("%s %s", request.method, request.path_qs)
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log.debug("%s", dict(request.headers))
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if isinstance(request.json, dict):
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log.debug("%s", request.json)
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log.info("Response: %d %s", self.status, self.reason)
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log.debug(dict(self.headers))
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if hasattr(self, 'body') and self.body is not None and self.headers["CONTENT-TYPE"] == "application/json":
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log.debug(json.loads(self.body.decode('utf-8')))
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return (yield from super().prepare(request))
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def html(self, answer):
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"""
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Set the response content type to text/html and serialize
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the content.
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:param anwser The response as a Python object
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"""
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self.content_type = "text/html"
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self.body = answer.encode('utf-8')
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def template(self, template_filename, **kwargs):
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"""
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Render a template
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:params template: Template name
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:params kwargs: Template parameters
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"""
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template = renderer.get_template(template_filename)
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kwargs["gns3_version"] = __version__
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kwargs["gns3_host"] = self._request.host
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self.html(template.render(**kwargs))
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def json(self, answer):
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"""
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Set the response content type to application/json and serialize
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the content.
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:param anwser The response as a Python object
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"""
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self.content_type = "application/json"
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if hasattr(answer, '__json__'):
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answer = answer.__json__()
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elif isinstance(answer, list):
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newanswer = []
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for elem in answer:
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if hasattr(elem, '__json__'):
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elem = elem.__json__()
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newanswer.append(elem)
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answer = newanswer
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if self._output_schema is not None:
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try:
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jsonschema.validate(answer, self._output_schema)
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except jsonschema.ValidationError as e:
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log.error("Invalid output query. JSON schema error: {}".format(e.message))
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raise aiohttp.web.HTTPBadRequest(text="{}".format(e))
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self.body = json.dumps(answer, indent=4, sort_keys=True).encode('utf-8')
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def redirect(self, url):
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"""
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Redirect to url
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:params url: Redirection URL
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"""
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raise aiohttp.web.HTTPFound(url)
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