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# -*- coding: utf-8 -*-
# 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 uuid
from random import getrandbits
from datetime import datetime
from functools import wraps
from mediagoblin.plugins.api.tools import json_response
def require_client_auth(controller):
'''
View decorator
- Requires the presence of ``?client_id``
'''
# Avoid circular import
from mediagoblin.plugins.oauth.models import OAuthClient
@wraps(controller)
def wrapper(request, *args, **kw):
if not request.GET.get('client_id'):
return json_response({
'status': 400,
'errors': [u'No client identifier in URL']},
_disable_cors=True)
client = OAuthClient.query.filter(
OAuthClient.identifier == request.GET.get('client_id')).first()
if not client:
return json_response({
'status': 400,
'errors': [u'No such client identifier']},
_disable_cors=True)
return controller(request, client)
return wrapper
def create_token(client, user):
'''
Create an OAuthToken and an OAuthRefreshToken entry in the database
Returns the data structure expected by the OAuth clients.
'''
from mediagoblin.plugins.oauth.models import OAuthToken, OAuthRefreshToken
token = OAuthToken()
token.user = user
token.client = client
token.save()
refresh_token = OAuthRefreshToken()
refresh_token.user = user
refresh_token.client = client
refresh_token.save()
# expire time of token in full seconds
# timedelta.total_seconds is python >= 2.7 or we would use that
td = token.expires - datetime.now()
exp_in = 86400*td.days + td.seconds # just ignore µsec
return {'access_token': token.token, 'token_type': 'bearer',
'refresh_token': refresh_token.token, 'expires_in': exp_in}
def generate_identifier():
''' Generates a ``uuid.uuid4()`` '''
return unicode(uuid.uuid4())
def generate_token():
''' Uses generate_identifier '''
return generate_identifier()
def generate_refresh_token():
''' Uses generate_identifier '''
return generate_identifier()
def generate_code():
''' Uses generate_identifier '''
return generate_identifier()
def generate_secret():
'''
Generate a long string of pseudo-random characters
'''
# XXX: We might not want it to use bcrypt, since bcrypt takes its time to
# generate the result.
return unicode(getrandbits(192))
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