Synnefo

# Copyright 2011-2012 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.

import logging

import urlparse

from django.http import (

    HttpResponseNotFound, HttpResponseRedirect, HttpResponse)

from django.utils.http import urlencode

from django.views.decorators.csrf import csrf_exempt

from django.utils import simplejson as json

from pithos.api.settings import ASTAKOS_URL

from astakosclient import AstakosClient

from astakosclient.errors import AstakosClientException

logger = logging.getLogger(__name__)

USER_CATALOG_URL = "/astakos/api/user_catalogs"

USER_FEEDBACK_URL = "/astakos/api/feedback"

USER_LOGIN_URL = urlparse.urljoin(ASTAKOS_URL, "login")

def delegate_to_login_service(request):

    url = USER_LOGIN_URL

    if not url:

        return HttpResponseNotFound()

    p = urlparse.urlparse(url)

    if request.is_secure():

        proto = 'https://'

    else:

        proto = 'http://'

    params = dict([(k, v) for k, v in request.GET.items()])

    uri = proto + p.netloc + p.path + '?' + urlencode(params)

    return HttpResponseRedirect(uri)

@csrf_exempt

def delegate_to_feedback_service(request):

    token = request.META.get('HTTP_X_AUTH_TOKEN')

    body = request.raw_post_data

    method = request.method

    astakos = AstakosClient(ASTAKOS_URL, retry=2, use_pool=True, logger=logger)

    try:

        data = astakos._call_astakos(token, USER_FEEDBACK_URL, None, body,

                                     method)

        status = 200

    except AstakosClientException, e:

        status = e.status

        details = json.loads(e.details)

        _, d = details.popitem()

        data = d.get('message')

    return HttpResponse(data, status=status)

@csrf_exempt

def delegate_to_user_catalogs_service(request):

    token = request.META.get('HTTP_X_AUTH_TOKEN')

    headers = {'content-type': 'application/json'}

    body = request.raw_post_data

    method = request.method

    astakos = AstakosClient(ASTAKOS_URL, retry=2, use_pool=True, logger=logger)

    try:

        data = astakos._call_astakos(token, USER_CATALOG_URL, headers, body,

                                     method)

        data = json.dumps(data)

        status = 200

    except AstakosClientException, e:

        status = e.status

        details = json.loads(e.details)

        _, d = details.popitem()

        data = d.get('message')

    return HttpResponse(data, status=status)

        (r'^login/?$', 'pithos.api.delegate.delegate_to_login_service'),

        (r'^feedback/?$', 'pithos.api.delegate.delegate_to_feedback_service'),

        (r'^user_catalogs/?$', 'pithos.api.delegate.delegate_to_user_catalogs_service'))