Synnefo

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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")

        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)