Synnefo

# Copyright 2011-2013 GRNET S.A. All rights reserved.

#

# Redistribution and use in source and binary forms, with or

# without modification, are permitted provided that the following

# conditions are met:

#

#   1. Redistributions of source code must retain the above

#      copyright notice, this list of conditions and the following

#      disclaimer.

#

#   2. Redistributions in binary form must reproduce the above

#      copyright notice, this list of conditions and the following

#      disclaimer in the documentation and/or other materials

#      provided with the distribution.

#

# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

# POSSIBILITY OF SUCH DAMAGE.

#

# The views and conclusions contained in the software and

# documentation are those of the authors and should not be

# interpreted as representing official policies, either expressed

# or implied, of GRNET S.A.

from time import time, mktime

from functools import wraps

from django.views.decorators.csrf import csrf_exempt

from . import  __get_uuid_displayname_catalogs, __send_feedback

from snf_django.lib import api

from snf_django.lib.api import faults

from astakos.im.models import Service

import logging

logger = logging.getLogger(__name__)

def service_from_token(func):

    """Decorator for authenticating service by it's token.

    Check that a service with the corresponding token exists. Also,

    if service's token has an expiration token, check that it has not

    expired.

    """

    @wraps(func)

    def wrapper(request, *args, **kwargs):

        try:

            token = request.x_auth_token

        except AttributeError:

            raise faults.Unauthorized("No authentication token")

        if not token:

            raise faults.Unauthorized("Invalid X-Auth-Token")

        try:

            service = Service.objects.get(auth_token=token)

        except Service.DoesNotExist:

            raise faults.Unauthorized("Invalid X-Auth-Token")

        # Check if the token has expired

        expiration_date = service.auth_token_expires

        if expiration_date:

            expires_at = mktime(expiration_date.timetuple())

            if time() > expires_at:

                raise faults.Unauthorized("Authentication expired")

        request.service_instance = service

        return func(request, *args, **kwargs)

    return wrapper

@csrf_exempt

@api.api_method(http_method='POST', token_required=True, user_required=False,

            logger=logger)

@service_from_token  # Authenticate service !!

def get_uuid_displayname_catalogs(request):

    # Normal Response Codes: 200

    # Error Response Codes: internalServerError (500)

    #                       badRequest (400)

    #                       unauthorised (401)

    return __get_uuid_displayname_catalogs(request, user_call=False)

@csrf_exempt

@api.api_method(http_method='POST', token_required=True, user_required=False,

            logger=logger)

@service_from_token  # Authenticate service !!

def send_feedback(request, email_template_name='im/feedback_mail.txt'):

    # Normal Response Codes: 200

    # Error Response Codes: internalServerError (500)

    #                       badRequest (400)

    #                       unauthorised (401)

    return __send_feedback(request, email_template_name)