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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import json
import logging
from werkzeug.http import parse_options_header
from mediagoblin.db.models import User, AccessToken
from mediagoblin.oauth.tools.request import decode_authorization_header
_log = logging.getLogger(__name__)
# MIME-Types
form_encoded = "application/x-www-form-urlencoded"
json_encoded = "application/json"
def setup_user_in_request(request):
"""
Examine a request and tack on a request.user parameter if that's
appropriate.
"""
# If API request the user will be associated with the access token
authorization = decode_authorization_header(request.headers)
if authorization.get("access_token"):
# Check authorization header.
token = authorization["oauth_token"]
token = AccessToken.query.filter_by(token=token).first()
if token is not None:
request.user = token.user
return
if 'user_id' not in request.session:
request.user = None
return
request.user = User.query.get(request.session['user_id'])
if not request.user:
# Something's wrong... this user doesn't exist? Invalidate
# this session.
_log.warn("Killing session for user id %r", request.session['user_id'])
request.session.delete()
def decode_request(request):
""" Decodes a request based on MIME-Type """
data = request.data
content_type, _ = parse_options_header(request.content_type)
if content_type == json_encoded:
data = json.loads(str(data, "utf-8"))
elif content_type == form_encoded or content_type == "":
data = request.form
else:
data = ""
return data
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