Revision ee7a2b87 snf-astakos-app/astakos/im/api/service.py
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# interpreted as representing official policies, either expressed |
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# or implied, of GRNET S.A. |
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import logging |
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from functools import wraps |
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from time import time, mktime |
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from functools import wraps |
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from django.views.decorators.csrf import csrf_exempt |
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from . import render_fault, __get_uuid_displayname_catalogs, __send_feedback |
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from . import __get_uuid_displayname_catalogs, __send_feedback |
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from snf_django.lib import api |
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from snf_django.lib.api import faults |
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from astakos.im.models import Service |
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import logging |
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logger = logging.getLogger(__name__) |
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def api_method(http_method=None, token_required=False): |
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"""Decorator function for views that implement an API method.""" |
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def decorator(func): |
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@wraps(func) |
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def wrapper(request, *args, **kwargs): |
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try: |
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if http_method and request.method != http_method: |
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raise faults.BadRequest('Method not allowed.')
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x_auth_token = request.META.get('HTTP_X_AUTH_TOKEN')
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if token_required: |
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if not x_auth_token: |
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raise faults.Unauthorized('Access denied')
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try: |
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service = Service.objects.get(auth_token=x_auth_token) |
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def service_from_token(func): |
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"""Decorator for authenticating service by it's token. |
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# Check if the token has expired. |
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if service.auth_token_expires: |
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if (time() - mktime(service.auth_token_expires.timetuple())) > 0: |
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raise faults.Unauthorized('Authentication expired')
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except Service.DoesNotExist, e: |
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raise faults.Unauthorized('Invalid X-Auth-Token')
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response = func(request, *args, **kwargs) |
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return response |
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except faults.Fault, fault: |
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return render_fault(request, fault) |
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except BaseException, e: |
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logger.exception('Unexpected error: %s' % e)
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fault = faults.InternalServerError('Unexpected error')
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return render_fault(request, fault) |
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return wrapper |
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return decorator |
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Check that a service with the corresponding token exists. Also, |
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if service's token has an expiration token, check that it has not |
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expired. |
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""" |
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@wraps(func) |
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def wrapper(request, *args, **kwargs): |
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try: |
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token = request.x_auth_token |
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except AttributeError: |
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raise faults.Unauthorized("No authentication token")
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if not token: |
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raise faults.Unauthorized("Invalid X-Auth-Token")
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try: |
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service = Service.objects.get(auth_token=token) |
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except Service.DoesNotExist: |
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raise faults.Unauthorized("Invalid X-Auth-Token")
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# Check if the token has expired |
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expiration_date = service.auth_token_expires |
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if expiration_date: |
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expires_at = mktime(expiration_date.timetuple()) |
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if time() > expires_at: |
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raise faults.Unauthorized("Authentication expired")
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return func(request, *args, **kwargs) |
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return wrapper |
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@csrf_exempt |
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@api_method(http_method='POST', token_required=True) |
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@api.api_method(http_method='POST', token_required=True, user_required=False, |
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logger=logger) |
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@service_from_token # Authenticate service !! |
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def get_uuid_displayname_catalogs(request): |
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# Normal Response Codes: 200 |
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# Error Response Codes: internalServerError (500) |
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# badRequest (400) |
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# unauthorised (401) |
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return __get_uuid_displayname_catalogs(request, user_call=False) |
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@csrf_exempt |
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@api_method(http_method='POST', token_required=True) |
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@api.api_method(http_method='POST', token_required=True, user_required=False, |
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logger=logger) |
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@service_from_token # Authenticate service !! |
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def send_feedback(request, email_template_name='im/feedback_mail.txt'): |
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# Normal Response Codes: 200 |
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# Error Response Codes: internalServerError (500) |
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# badRequest (400) |
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# unauthorised (401) |
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return __send_feedback(request, email_template_name) |
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