/snf-astakos-app/astakos/im/views.py - Synnefo - Greek Research and Technology Network's projects

| Branch: | Tag: | Revision:

root / snf-astakos-app / astakos / im / views.py @ 53e0b8fe

History | View | Annotate | Download (70.1 kB)

       # 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 calendar
       import inflect
       engine = inflect.engine()
       from urllib import quote
       from functools import wraps
       from datetime import datetime
       from django.shortcuts import get_object_or_404
       from django.contrib import messages
       from django.contrib.auth.decorators import login_required
       from django.core.urlresolvers import reverse
       from django.db import transaction
       from django.db.utils import IntegrityError
       from django.http import (
           HttpResponse, HttpResponseBadRequest,
           HttpResponseForbidden, HttpResponseRedirect,
           HttpResponseBadRequest, Http404)
       from django.shortcuts import redirect
       from django.template import RequestContext, loader as template_loader
       from django.utils.http import urlencode
       from django.utils.translation import ugettext as _
       from django.views.generic.create_update import (
           apply_extra_context, lookup_object, delete_object, get_model_and_form_class)
       from django.views.generic.list_detail import object_list, object_detail
       from django.core.xheaders import populate_xheaders
       from django.core.exceptions import ValidationError, PermissionDenied
       from django.template.loader import render_to_string
       from django.views.decorators.http import require_http_methods
       from django.db.models import Q
       from django.core.exceptions import PermissionDenied
       import astakos.im.messages as astakos_messages
       from astakos.im.activation_backends import get_backend, SimpleBackend
       from astakos.im.models import (
           AstakosUser, ApprovalTerms,
       #     AstakosGroup, Membership
           EmailChange, GroupKind,
           RESOURCE_SEPARATOR, AstakosUserAuthProvider,
           PendingThirdPartyUser,
           ProjectApplication, ProjectMembership, Project)
       from astakos.im.util import (
           get_context, prepare_response, get_query, restrict_next)
       from astakos.im.forms import (
           LoginForm, InvitationForm, ProfileForm,
           FeedbackForm, SignApprovalTermsForm,
           EmailChangeForm,
       #     AstakosGroupCreationForm, AstakosGroupSearchForm,
       #     AstakosGroupUpdateForm, AddGroupMembersForm,
       #     MembersSortForm, AstakosGroupSortForm,
       #     TimelineForm, PickResourceForm,
       #     AstakosGroupCreationSummaryForm,
           ProjectApplicationForm, ProjectSortForm,
           AddProjectMembersForm, ProjectSearchForm,
           ProjectMembersSortForm)
       from astakos.im.functions import (
           send_feedback, SendMailError,
           logout as auth_logout,
           activate as activate_func,
           invite,
           send_activation as send_activation_func,
       #     send_group_creation_notification,
           SendNotificationError,
           accept_membership, reject_membership, remove_membership,
           leave_project, join_project)
       # from astakos.im.endpoints.qh import timeline_charge
       from astakos.im.settings import (
           COOKIE_DOMAIN, LOGOUT_NEXT,
           LOGGING_LEVEL, PAGINATE_BY,
           RESOURCES_PRESENTATION_DATA, PAGINATE_BY_ALL)
       #from astakos.im.tasks import request_billing
       from astakos.im.api.callpoint import AstakosCallpoint
       from astakos.im import settings
       from astakos.im import auth_providers
       logger = logging.getLogger(__name__)
       callpoint = AstakosCallpoint()
       def render_response(template, tab=None, status=200, context_instance=None, **kwargs):
           """
           Calls ``django.template.loader.render_to_string`` with an additional ``tab``
           keyword argument and returns an ``django.http.HttpResponse`` with the
           specified ``status``.
           """
           if tab is None:
               tab = template.partition('_')[0].partition('.html')[0]
           kwargs.setdefault('tab', tab)
           html = template_loader.render_to_string(
               template, kwargs, context_instance=context_instance)
           response = HttpResponse(html, status=status)
           return response
       def requires_auth_provider(provider_id, **perms):
           """
           """
           def decorator(func, *args, **kwargs):
               @wraps(func)
               def wrapper(request, *args, **kwargs):
                   provider = auth_providers.get_provider(provider_id)
                   if not provider or not provider.is_active():
                       raise PermissionDenied
                   if provider:
                       for pkey, value in perms.iteritems():
                           attr = 'is_available_for_%s' % pkey.lower()
                           if getattr(provider, attr)() != value:
                               #TODO: add session message
                               return HttpResponseRedirect(reverse('login'))
                   return func(request, *args)
               return wrapper
           return decorator
       def requires_anonymous(func):
           """
           Decorator checkes whether the request.user is not Anonymous and in that case
           redirects to `logout`.
           """
           @wraps(func)
           def wrapper(request, *args):
               if not request.user.is_anonymous():
                   next = urlencode({'next': request.build_absolute_uri()})
                   logout_uri = reverse(logout) + '?' + next
                   return HttpResponseRedirect(logout_uri)
               return func(request, *args)
           return wrapper
       def signed_terms_required(func):
           """
           Decorator checks whether the request.user is Anonymous and in that case
           redirects to `logout`.
           """
           @wraps(func)
           def wrapper(request, *args, **kwargs):
               if request.user.is_authenticated() and not request.user.signed_terms:
                   params = urlencode({'next': request.build_absolute_uri(),
                                       'show_form': ''})
                   terms_uri = reverse('latest_terms') + '?' + params
                   return HttpResponseRedirect(terms_uri)
               return func(request, *args, **kwargs)
           return wrapper
       def required_auth_methods_assigned(only_warn=False):
           """
           Decorator that checks whether the request.user has all required auth providers
           assigned.
           """
           required_providers = auth_providers.REQUIRED_PROVIDERS.keys()
           def decorator(func):
               if not required_providers:
                   return func
               @wraps(func)
               def wrapper(request, *args, **kwargs):
                   if request.user.is_authenticated():
                       for required in required_providers:
                           if not request.user.has_auth_provider(required):
                               provider = auth_providers.get_provider(required)
                               if only_warn:
                                   messages.error(request,
                                                  _(astakos_messages.AUTH_PROVIDER_REQUIRED  % {
                                                      'provider': provider.get_title_display}))
                               else:
                                   return HttpResponseRedirect(reverse('edit_profile'))
                   return func(request, *args, **kwargs)
               return wrapper
           return decorator
       def valid_astakos_user_required(func):
           return signed_terms_required(required_auth_methods_assigned()(login_required(func)))
       @require_http_methods(["GET", "POST"])
       @signed_terms_required
       def index(request, login_template_name='im/login.html', profile_template_name='im/profile.html', extra_context=None):
           """
           If there is logged on user renders the profile page otherwise renders login page.
           **Arguments**
           ``login_template_name``
               A custom login template to use. This is optional; if not specified,
               this will default to ``im/login.html``.
           ``profile_template_name``
               A custom profile template to use. This is optional; if not specified,
               this will default to ``im/profile.html``.
           ``extra_context``
               An dictionary of variables to add to the template context.
           **Template:**
           im/profile.html or im/login.html or ``template_name`` keyword argument.
           """
           extra_context = extra_context or {}
           template_name = login_template_name
           if request.user.is_authenticated():
               return HttpResponseRedirect(reverse('astakos.im.views.edit_profile'))
           third_party_token = request.GET.get('key', False)
           if third_party_token:
               messages.info(request, astakos_messages.AUTH_PROVIDER_LOGIN_TO_ADD)
           return render_response(
               template_name,
               login_form = LoginForm(request=request),
               context_instance = get_context(request, extra_context)
+          )
       @require_http_methods(["GET", "POST"])
       @valid_astakos_user_required
       @transaction.commit_manually
       def invite(request, template_name='im/invitations.html', extra_context=None):
           """
           Allows a user to invite somebody else.
           In case of GET request renders a form for providing the invitee information.
           In case of POST checks whether the user has not run out of invitations and then
           sends an invitation email to singup to the service.
           The view uses commit_manually decorator in order to ensure the number of the
           user invitations is going to be updated only if the email has been successfully sent.
           If the user isn't logged in, redirects to settings.LOGIN_URL.
           **Arguments**
           ``template_name``
               A custom template to use. This is optional; if not specified,
               this will default to ``im/invitations.html``.
           ``extra_context``
               An dictionary of variables to add to the template context.
           **Template:**
           im/invitations.html or ``template_name`` keyword argument.
           **Settings:**
           The view expectes the following settings are defined:
           * LOGIN_URL: login uri
           """
           extra_context = extra_context or {}
           status = None
           message = None
           form = InvitationForm()
           inviter = request.user
           if request.method == 'POST':
               form = InvitationForm(request.POST)
               if inviter.invitations > 0:
                   if form.is_valid():
                       try:
                           email = form.cleaned_data.get('username')
                           realname = form.cleaned_data.get('realname')
                           invite(inviter, email, realname)
                           message = _(astakos_messages.INVITATION_SENT) % locals()
                           messages.success(request, message)
                       except SendMailError, e:
                           message = e.message
                           messages.error(request, message)
                           transaction.rollback()
                       except BaseException, e:
                           message = _(astakos_messages.GENERIC_ERROR)
                           messages.error(request, message)
                           logger.exception(e)
                           transaction.rollback()
                       else:
                           transaction.commit()
               else:
                   message = _(astakos_messages.MAX_INVITATION_NUMBER_REACHED)
                   messages.error(request, message)
           sent = [{'email': inv.username,
                    'realname': inv.realname,
                    'is_consumed': inv.is_consumed}
                   for inv in request.user.invitations_sent.all()]
           kwargs = {'inviter': inviter,
                     'sent': sent}
           context = get_context(request, extra_context, **kwargs)
           return render_response(template_name,
                                  invitation_form=form,
                                  context_instance=context)
       @require_http_methods(["GET", "POST"])
       @required_auth_methods_assigned(only_warn=True)
       @login_required
       @signed_terms_required
       def edit_profile(request, template_name='im/profile.html', extra_context=None):
           """
           Allows a user to edit his/her profile.
           In case of GET request renders a form for displaying the user information.
           In case of POST updates the user informantion and redirects to ``next``
           url parameter if exists.
           If the user isn't logged in, redirects to settings.LOGIN_URL.
           **Arguments**
           ``template_name``
               A custom template to use. This is optional; if not specified,
               this will default to ``im/profile.html``.
           ``extra_context``
               An dictionary of variables to add to the template context.
           **Template:**
           im/profile.html or ``template_name`` keyword argument.
           **Settings:**
           The view expectes the following settings are defined:
           * LOGIN_URL: login uri
           """
           extra_context = extra_context or {}
           form = ProfileForm(
               instance=request.user,
               session_key=request.session.session_key
+          )
           extra_context['next'] = request.GET.get('next')
           if request.method == 'POST':
               form = ProfileForm(
                   request.POST,
                   instance=request.user,
                   session_key=request.session.session_key
+              )
               if form.is_valid():
                   try:
                       prev_token = request.user.auth_token
                       user = form.save()
                       form = ProfileForm(
                           instance=user,
                           session_key=request.session.session_key
+                      )
                       next = restrict_next(
                           request.POST.get('next'),
                           domain=COOKIE_DOMAIN
+                      )
                       if next:
                           return redirect(next)
                       msg = _(astakos_messages.PROFILE_UPDATED)
                       messages.success(request, msg)
                   except ValueError, ve:
                       messages.success(request, ve)
           elif request.method == "GET":
               request.user.is_verified = True
               request.user.save()
           # existing providers
           user_providers = request.user.get_active_auth_providers()
           # providers that user can add
           user_available_providers = request.user.get_available_auth_providers()
           return render_response(template_name,
                                  profile_form = form,
                                  user_providers = user_providers,
                                  user_available_providers = user_available_providers,
                                  context_instance = get_context(request,
                                                                 extra_context))
       @transaction.commit_manually
       @require_http_methods(["GET", "POST"])
       def signup(request, template_name='im/signup.html', on_success='im/signup_complete.html', extra_context=None, backend=None):
           """
           Allows a user to create a local account.
           In case of GET request renders a form for entering the user information.
           In case of POST handles the signup.
           The user activation will be delegated to the backend specified by the ``backend`` keyword argument
           if present, otherwise to the ``astakos.im.activation_backends.InvitationBackend``
           if settings.ASTAKOS_INVITATIONS_ENABLED is True or ``astakos.im.activation_backends.SimpleBackend`` if not
           (see activation_backends);
           Upon successful user creation, if ``next`` url parameter is present the user is redirected there
           otherwise renders the same page with a success message.
           On unsuccessful creation, renders ``template_name`` with an error message.
           **Arguments**
           ``template_name``
               A custom template to render. This is optional;
               if not specified, this will default to ``im/signup.html``.
           ``on_success``
               A custom template to render in case of success. This is optional;
               if not specified, this will default to ``im/signup_complete.html``.
           ``extra_context``
               An dictionary of variables to add to the template context.
           **Template:**
           im/signup.html or ``template_name`` keyword argument.
           im/signup_complete.html or ``on_success`` keyword argument.
           """
           extra_context = extra_context or {}
           if request.user.is_authenticated():
               return HttpResponseRedirect(reverse('edit_profile'))
           provider = get_query(request).get('provider', 'local')
           if not auth_providers.get_provider(provider).is_available_for_create():
               raise PermissionDenied
           id = get_query(request).get('id')
           try:
               instance = AstakosUser.objects.get(id=id) if id else None
           except AstakosUser.DoesNotExist:
               instance = None
           third_party_token = request.REQUEST.get('third_party_token', None)
           if third_party_token:
               pending = get_object_or_404(PendingThirdPartyUser,
                                           token=third_party_token)
               provider = pending.provider
               instance = pending.get_user_instance()
           try:
               if not backend:
                   backend = get_backend(request)
               form = backend.get_signup_form(provider, instance)
           except Exception, e:
               form = SimpleBackend(request).get_signup_form(provider)
               messages.error(request, e)
           if request.method == 'POST':
               if form.is_valid():
                   user = form.save(commit=False)
                   try:
                       result = backend.handle_activation(user)
                       status = messages.SUCCESS
                       message = result.message
                       form.store_user(user, request)
                       if 'additional_email' in form.cleaned_data:
                           additional_email = form.cleaned_data['additional_email']
                           if additional_email != user.email:
                               user.additionalmail_set.create(email=additional_email)
                               msg = 'Additional email: %s saved for user %s.' % (
                                   additional_email,
                                   user.email
+                              )
                               logger._log(LOGGING_LEVEL, msg, [])
                       if user and user.is_active:
                           next = request.POST.get('next', '')
                           response = prepare_response(request, user, next=next)
                           transaction.commit()
                           return response
                       messages.add_message(request, status, message)
                       transaction.commit()
                       return render_response(
                           on_success,
                           context_instance=get_context(
                               request,
                               extra_context
+                          )
+                      )
                   except SendMailError, e:
                       logger.exception(e)
                       status = messages.ERROR
                       message = e.message
                       messages.error(request, message)
                       transaction.rollback()
                   except BaseException, e:
                       logger.exception(e)
                       message = _(astakos_messages.GENERIC_ERROR)
                       messages.error(request, message)
                       logger.exception(e)
                       transaction.rollback()
           return render_response(template_name,
                                  signup_form=form,
                                  third_party_token=third_party_token,
                                  provider=provider,
                                  context_instance=get_context(request, extra_context))
       @require_http_methods(["GET", "POST"])
       @required_auth_methods_assigned(only_warn=True)
       @login_required
       @signed_terms_required
       def feedback(request, template_name='im/feedback.html', email_template_name='im/feedback_mail.txt', extra_context=None):
           """
           Allows a user to send feedback.
           In case of GET request renders a form for providing the feedback information.
           In case of POST sends an email to support team.
           If the user isn't logged in, redirects to settings.LOGIN_URL.
           **Arguments**
           ``template_name``
               A custom template to use. This is optional; if not specified,
               this will default to ``im/feedback.html``.
           ``extra_context``
               An dictionary of variables to add to the template context.
           **Template:**
           im/signup.html or ``template_name`` keyword argument.
           **Settings:**
           * LOGIN_URL: login uri
           """
           extra_context = extra_context or {}
           if request.method == 'GET':
               form = FeedbackForm()
           if request.method == 'POST':
               if not request.user:
                   return HttpResponse('Unauthorized', status=401)
               form = FeedbackForm(request.POST)
               if form.is_valid():
                   msg = form.cleaned_data['feedback_msg']
                   data = form.cleaned_data['feedback_data']
                   try:
                       send_feedback(msg, data, request.user, email_template_name)
                   except SendMailError, e:
                       messages.error(request, message)
                   else:
                       message = _(astakos_messages.FEEDBACK_SENT)
                       messages.success(request, message)
           return render_response(template_name,
                                  feedback_form=form,
                                  context_instance=get_context(request, extra_context))
       @require_http_methods(["GET"])
       @signed_terms_required
       def logout(request, template='registration/logged_out.html', extra_context=None):
           """
           Wraps `django.contrib.auth.logout`.
           """
           extra_context = extra_context or {}
           response = HttpResponse()
           if request.user.is_authenticated():
               email = request.user.email
               auth_logout(request)
           else:
               response['Location'] = reverse('index')
               response.status_code = 301
               return response
           next = restrict_next(
               request.GET.get('next'),
               domain=COOKIE_DOMAIN
+          )
           if next:
               response['Location'] = next
               response.status_code = 302
           elif LOGOUT_NEXT:
               response['Location'] = LOGOUT_NEXT
               response.status_code = 301
           else:
               messages.add_message(request, messages.SUCCESS, _(astakos_messages.LOGOUT_SUCCESS))
               response['Location'] = reverse('index')
               response.status_code = 301
           return response
       @require_http_methods(["GET", "POST"])
       @transaction.commit_manually
       def activate(request, greeting_email_template_name='im/welcome_email.txt',
                    helpdesk_email_template_name='im/helpdesk_notification.txt'):
           """
           Activates the user identified by the ``auth`` request parameter, sends a welcome email
           and renews the user token.
           The view uses commit_manually decorator in order to ensure the user state will be updated
           only if the email will be send successfully.
           """
           token = request.GET.get('auth')
           next = request.GET.get('next')
           try:
               user = AstakosUser.objects.get(auth_token=token)
           except AstakosUser.DoesNotExist:
               return HttpResponseBadRequest(_(astakos_messages.ACCOUNT_UNKNOWN))
           if user.is_active:
               message = _(astakos_messages.ACCOUNT_ALREADY_ACTIVE)
               messages.error(request, message)
               return index(request)
           try:
               activate_func(user, greeting_email_template_name, helpdesk_email_template_name, verify_email=True)
               response = prepare_response(request, user, next, renew=True)
               transaction.commit()
               return response
           except SendMailError, e:
               message = e.message
               messages.add_message(request, messages.ERROR, message)
               transaction.rollback()
               return index(request)
           except BaseException, e:
               status = messages.ERROR
               message = _(astakos_messages.GENERIC_ERROR)
               messages.add_message(request, messages.ERROR, message)
               logger.exception(e)
               transaction.rollback()
               return index(request)
       @require_http_methods(["GET", "POST"])
       def approval_terms(request, term_id=None, template_name='im/approval_terms.html', extra_context=None):
           extra_context = extra_context or {}
           term = None
           terms = None
           if not term_id:
               try:
                   term = ApprovalTerms.objects.order_by('-id')[0]
               except IndexError:
                   pass
           else:
               try:
                   term = ApprovalTerms.objects.get(id=term_id)
               except ApprovalTerms.DoesNotExist, e:
                   pass
           if not term:
               messages.error(request, _(astakos_messages.NO_APPROVAL_TERMS))
               return HttpResponseRedirect(reverse('index'))
           f = open(term.location, 'r')
           terms = f.read()
           if request.method == 'POST':
               next = restrict_next(
                   request.POST.get('next'),
                   domain=COOKIE_DOMAIN
+              )
               if not next:
                   next = reverse('index')
               form = SignApprovalTermsForm(request.POST, instance=request.user)
               if not form.is_valid():
                   return render_response(template_name,
                                          terms=terms,
                                          approval_terms_form=form,
                                          context_instance=get_context(request, extra_context))
               user = form.save()
               return HttpResponseRedirect(next)
           else:
               form = None
               if request.user.is_authenticated() and not request.user.signed_terms:
                   form = SignApprovalTermsForm(instance=request.user)
               return render_response(template_name,
                                      terms=terms,
                                      approval_terms_form=form,
                                      context_instance=get_context(request, extra_context))
       @require_http_methods(["GET", "POST"])
       @valid_astakos_user_required
       @transaction.commit_manually
       def change_email(request, activation_key=None,
                        email_template_name='registration/email_change_email.txt',
                        form_template_name='registration/email_change_form.html',
                        confirm_template_name='registration/email_change_done.html',
                        extra_context=None):
           extra_context = extra_context or {}
           if activation_key:
               try:
                   user = EmailChange.objects.change_email(activation_key)
                   if request.user.is_authenticated() and request.user == user:
                       msg = _(astakos_messages.EMAIL_CHANGED)
                       messages.success(request, msg)
                       auth_logout(request)
                       response = prepare_response(request, user)
                       transaction.commit()
                       return HttpResponseRedirect(reverse('edit_profile'))
               except ValueError, e:
                   messages.error(request, e)
                   transaction.rollback()
                   return HttpResponseRedirect(reverse('index'))
               return render_response(confirm_template_name,
                                      modified_user=user if 'user' in locals() \
                                      else None, context_instance=get_context(request,
                                                                   extra_context))
           if not request.user.is_authenticated():
               path = quote(request.get_full_path())
               url = request.build_absolute_uri(reverse('index'))
               return HttpResponseRedirect(url + '?next=' + path)
           # clean up expired email changes
           if request.user.email_change_is_pending():
               change = request.user.emailchanges.get()
               if change.activation_key_expired():
                   change.delete()
                   transaction.commit()
                   return HttpResponseRedirect(reverse('email_change'))
           form = EmailChangeForm(request.POST or None)
           if request.method == 'POST' and form.is_valid():
               try:
                   # delete pending email changes
                   request.user.emailchanges.all().delete()
                   ec = form.save(email_template_name, request)
               except SendMailError, e:
                   msg = e
                   messages.error(request, msg)
                   transaction.rollback()
                   return HttpResponseRedirect(reverse('edit_profile'))
               else:
                   msg = _(astakos_messages.EMAIL_CHANGE_REGISTERED)
                   messages.success(request, msg)
                   transaction.commit()
                   return HttpResponseRedirect(reverse('edit_profile'))
           if request.user.email_change_is_pending():
               messages.warning(request, astakos_messages.PENDING_EMAIL_CHANGE_REQUEST)
           return render_response(
               form_template_name,
               form=form,
               context_instance=get_context(request, extra_context)
+          )
       def send_activation(request, user_id, template_name='im/login.html', extra_context=None):
           if request.user.is_authenticated():
               messages.error(request, _(astakos_messages.ALREADY_LOGGED_IN))
               return HttpResponseRedirect(reverse('edit_profile'))
           if settings.MODERATION_ENABLED:
               raise PermissionDenied
           extra_context = extra_context or {}
           try:
               u = AstakosUser.objects.get(id=user_id)
           except AstakosUser.DoesNotExist:
               messages.error(request, _(astakos_messages.ACCOUNT_UNKNOWN))
           else:
               try:
                   send_activation_func(u)
                   msg = _(astakos_messages.ACTIVATION_SENT)
                   messages.success(request, msg)
               except SendMailError, e:
                   messages.error(request, e)
           return render_response(
               template_name,
               login_form = LoginForm(request=request),
               context_instance = get_context(
                   request,
                   extra_context
+              )
+          )
       # class ResourcePresentation():
+      #
       #     def __init__(self, data):
       #         self.data = data
+      #
       #     def update_from_result(self, result):
       #         if result.is_success:
       #             for r in result.data:
       #                 rname = '%s%s%s' % (r.get('service'), RESOURCE_SEPARATOR, r.get('name'))
       #                 if not rname in self.data['resources']:
       #                     self.data['resources'][rname] = {}
+      #
       #                 self.data['resources'][rname].update(r)
       #                 self.data['resources'][rname]['id'] = rname
       #                 group = r.get('group')
       #                 if not group in self.data['groups']:
       #                     self.data['groups'][group] = {}
+      #
       #                 self.data['groups'][r.get('group')].update({'name': r.get('group')})
+      #
       #     def test(self, quota_dict):
       #         for k, v in quota_dict.iteritems():
       #             rname = k
       #             value = v
       #             if not rname in self.data['resources']:
       #                 self.data['resources'][rname] = {}
+      #
+      #
       #             self.data['resources'][rname]['value'] = value
+      #
+      #
       #     def update_from_result_report(self, result):
       #         if result.is_success:
       #             for r in result.data:
       #                 rname = r.get('name')
       #                 if not rname in self.data['resources']:
       #                     self.data['resources'][rname] = {}
+      #
       #                 self.data['resources'][rname].update(r)
       #                 self.data['resources'][rname]['id'] = rname
       #                 group = r.get('group')
       #                 if not group in self.data['groups']:
       #                     self.data['groups'][group] = {}
+      #
       #                 self.data['groups'][r.get('group')].update({'name': r.get('group')})
+      #
       #     def get_group_resources(self, group):
       #         return dict(filter(lambda t: t[1].get('group') == group, self.data['resources'].iteritems()))
+      #
       #     def get_groups_resources(self):
       #         for g in self.data['groups']:
       #             yield g, self.get_group_resources(g)
+      #
       #     def get_quota(self, group_quotas):
       #         for r, v in group_quotas:
       #             rname = str(r)
       #             quota = self.data['resources'].get(rname)
       #             quota['value'] = v
       #             yield quota
+      #
+      #
       #     def get_policies(self, policies_data):
       #         for policy in policies_data:
       #             rname = '%s%s%s' % (policy.get('service'), RESOURCE_SEPARATOR, policy.get('resource'))
       #             policy.update(self.data['resources'].get(rname))
       #             yield policy
+      #
       #     def __repr__(self):
       #         return self.data.__repr__()
+      #
       #     def __iter__(self, *args, **kwargs):
       #         return self.data.__iter__(*args, **kwargs)
+      #
       #     def __getitem__(self, *args, **kwargs):
       #         return self.data.__getitem__(*args, **kwargs)
+      #
       #     def get(self, *args, **kwargs):
       #         return self.data.get(*args, **kwargs)
       # @require_http_methods(["GET", "POST"])
       # @signed_terms_required
       # @login_required
       # def group_add(request, kind_name='default'):
       #     result = callpoint.list_resources()
       #     resource_catalog = ResourcePresentation(RESOURCES_PRESENTATION_DATA)
       #     resource_catalog.update_from_result(result)
+      #
       #     if not result.is_success:
       #         messages.error(
       #             request,
       #             'Unable to retrieve system resources: %s' % result.reason
       #     )
+      #
       #     try:
       #         kind = GroupKind.objects.get(name=kind_name)
       #     except:
       #         return HttpResponseBadRequest(_(astakos_messages.GROUPKIND_UNKNOWN))
+      #
+      #
+      #
       #     post_save_redirect = '/im/group/%(id)s/'
       #     context_processors = None
       #     model, form_class = get_model_and_form_class(
       #         model=None,
       #         form_class=AstakosGroupCreationForm
       #     )
+      #
       #     if request.method == 'POST':
       #         form = form_class(request.POST, request.FILES)
       #         if form.is_valid():
       #             policies = form.policies()
       #             return render_response(
       #                 template='im/astakosgroup_form_summary.html',
       #                 context_instance=get_context(request),
       #                 form=AstakosGroupCreationSummaryForm(form.cleaned_data),
       #                 policies=resource_catalog.get_policies(policies)
       #             )
       #     else:
       #         now = datetime.now()
       #         data = {
       #             'kind': kind,
       #         }
       #         for group, resources in resource_catalog.get_groups_resources():
       #             data['is_selected_%s' % group] = False
       #             for resource in resources:
       #                 data['%s_uplimit' % resource] = ''
+      #
       #         form = form_class(data)
+      #
       #     # Create the template, context, response
       #     template_name = "%s/%s_form.html" % (
       #         model._meta.app_label,
       #         model._meta.object_name.lower()
       #     )
       #     t = template_loader.get_template(template_name)
       #     c = RequestContext(request, {
       #         'form': form,
       #         'kind': kind,
       #         'resource_catalog':resource_catalog,
       #     }, context_processors)
       #     return HttpResponse(t.render(c))
       ##@require_hsttp_methods(["POST"])
       # @require_http_methods(["GET", "POST"])
       # @signed_terms_required
       # @login_required
       # @transaction.commit_manually
       # def group_add_complete(request):
       #     model = AstakosGroup
       #     form = AstakosGroupCreationSummaryForm(request.POST)
       #     if form.is_valid():
       #         d = form.cleaned_data
       #         d['owners'] = [request.user]
       #         result = callpoint.create_groups((d,)).next()
       #         if result.is_success:
       #             new_object = result.data[0]
       #             # send notification
       #             try:
       #                 send_group_creation_notification(
       #                     template_name='im/group_creation_notification.txt',
       #                     dictionary={
       #                         'group': new_object,
       #                         'owner': request.user,
       #                         'policies': d.get('policies', [])
       #                     }
       #                 )
       #             except SendNotificationError, e:
       #                 messages.error(request, e, fail_silently=True)
       #                 transaction.rollback()
       #             else:
       #                 msg = _(astakos_messages.OBJECT_CREATED) %\
       #                     {"verbose_name": model._meta.verbose_name}
       #                 message = _(astakos_messages.NOTIFICATION_SENT) % 'a project'
       #                 messages.success(request, msg, fail_silently=True)
       #                 transaction.commit()
       #         else:
       #             d = {"verbose_name": model._meta.verbose_name,
       #                  "reason":result.reason}
       #             msg = _(astakos_messages.OBJECT_CREATED_FAILED) % d
       #             messages.error(request, msg, fail_silently=True)
       #     return render_response(
       #         template='im/astakosgroup_form_summary.html',
       #         context_instance=get_context(request),
       #         form=form,
       #         policies=form.cleaned_data.get('policies')
       #     )
       ##@require_http_methods(["GET"])
       # @require_http_methods(["GET", "POST"])
       # @signed_terms_required
       # @login_required
       # def group_list(request):
       #     none = request.user.astakos_groups.none()
       #     query = """
       #         SELECT auth_group.id,
       #         auth_group.name AS groupname,
       #         im_groupkind.name AS kindname,
       #         im_astakosgroup.*,
       #         owner.email AS groupowner,
       #         (SELECT COUNT(*) FROM im_membership
       #             WHERE group_id = im_astakosgroup.group_ptr_id
       #             AND date_joined IS NOT NULL) AS approved_members_num,
       #         (SELECT CASE WHEN(
       #                     SELECT date_joined FROM im_membership
       #                     WHERE group_id = im_astakosgroup.group_ptr_id
       #                     AND person_id = %(id)s) IS NULL
       #                     THEN 0 ELSE 1 END) AS membership_status
       #         FROM im_astakosgroup
       #         INNER JOIN im_membership ON (
       #             im_astakosgroup.group_ptr_id = im_membership.group_id)
       #         INNER JOIN auth_group ON(im_astakosgroup.group_ptr_id = auth_group.id)
       #         INNER JOIN im_groupkind ON (im_astakosgroup.kind_id = im_groupkind.id)
       #         LEFT JOIN im_astakosuser_owner ON (
       #             im_astakosuser_owner.astakosgroup_id = im_astakosgroup.group_ptr_id)
       #         LEFT JOIN auth_user as owner ON (
       #             im_astakosuser_owner.astakosuser_id = owner.id)
       #         WHERE im_membership.person_id = %(id)s
       #         AND im_groupkind.name != 'default'
       #         """ % request.user.__dict__
+      #
       #     # validate sorting
       #     sorting = 'groupname'
       #     sort_form = AstakosGroupSortForm(request.GET)
       #     if sort_form.is_valid():
       #         sorting = sort_form.cleaned_data.get('sorting')
       #     query = query+" ORDER BY %s ASC" %sorting
+      #
       #     q = AstakosGroup.objects.raw(query)
+      #
       #     # Create the template, context, response
       #     template_name = "%s/%s_list.html" % (
       #         q.model._meta.app_label,
       #         q.model._meta.object_name.lower()
       #     )
       #     extra_context = dict(
       #         is_search=False,
       #         q=q,
       #         sorting=sorting,
       #         page=request.GET.get('page', 1)
       #     )
       #     return render_response(template_name,
       #                            context_instance=get_context(request, extra_context)
       #     )
       # @require_http_methods(["GET", "POST"])
       # @signed_terms_required
       # @login_required
       # def group_detail(request, group_id):
       #     q = AstakosGroup.objects.select_related().filter(pk=group_id)
       #     q = q.extra(select={
       #         'is_member': """SELECT CASE WHEN EXISTS(
       #                             SELECT id FROM im_membership
       #                             WHERE group_id = im_astakosgroup.group_ptr_id
       #                             AND person_id = %s)
       #                         THEN 1 ELSE 0 END""" % request.user.id,
       #         'is_owner': """SELECT CASE WHEN EXISTS(
       #                         SELECT id FROM im_astakosuser_owner
       #                         WHERE astakosgroup_id = im_astakosgroup.group_ptr_id
       #                         AND astakosuser_id = %s)
       #                         THEN 1 ELSE 0 END""" % request.user.id,
       #         'is_active_member': """SELECT CASE WHEN(
       #                         SELECT date_joined FROM im_membership
       #                         WHERE group_id = im_astakosgroup.group_ptr_id
       #                         AND person_id = %s) IS NULL
       #                         THEN 0 ELSE 1 END""" % request.user.id,
       #         'kindname': """SELECT name FROM im_groupkind
       #                        WHERE id = im_astakosgroup.kind_id"""})
+      #
       #     model = q.model
       #     context_processors = None
       #     mimetype = None
       #     try:
       #         obj = q.get()
       #     except AstakosGroup.DoesNotExist:
       #         raise Http404("No %s found matching the query" % (
       #             model._meta.verbose_name))
+      #
       #     update_form = AstakosGroupUpdateForm(instance=obj)
       #     addmembers_form = AddGroupMembersForm()
       #     if request.method == 'POST':
       #         update_data = {}
       #         addmembers_data = {}
       #         for k, v in request.POST.iteritems():
       #             if k in update_form.fields:
       #                 update_data[k] = v
       #             if k in addmembers_form.fields:
       #                 addmembers_data[k] = v
       #         update_data = update_data or None
       #         addmembers_data = addmembers_data or None
       #         update_form = AstakosGroupUpdateForm(update_data, instance=obj)
       #         addmembers_form = AddGroupMembersForm(addmembers_data)
       #         if update_form.is_valid():
       #             update_form.save()
       #         if addmembers_form.is_valid():
       #             try:
       #                 map(obj.approve_member, addmembers_form.valid_users)
       #             except AssertionError:
       #                 msg = _(astakos_messages.GROUP_MAX_PARTICIPANT_NUMBER_REACHED)
       #                 messages.error(request, msg)
       #             addmembers_form = AddGroupMembersForm()
+      #
       #     template_name = "%s/%s_detail.html" % (
       #         model._meta.app_label, model._meta.object_name.lower())
       #     t = template_loader.get_template(template_name)
       #     c = RequestContext(request, {
       #         'object': obj,
       #     }, context_processors)
+      #
       #     # validate sorting
       #     sorting = 'person__email'
       #     form = MembersSortForm(request.GET)
       #     if form.is_valid():
       #         sorting = form.cleaned_data.get('sorting')
+      #
       #     result = callpoint.list_resources()
       #     resource_catalog = ResourcePresentation(RESOURCES_PRESENTATION_DATA)
       #     resource_catalog.update_from_result(result)
+      #
+      #
       #     if not result.is_success:
       #         messages.error(
       #             request,
       #             'Unable to retrieve system resources: %s' % result.reason
       #     )
+      #
       #     extra_context = {'update_form': update_form,
       #                      'addmembers_form': addmembers_form,
       #                      'page': request.GET.get('page', 1),
       #                      'sorting': sorting,
       #                      'resource_catalog':resource_catalog,
       #                      'quota':resource_catalog.get_quota(obj.quota)}
       #     for key, value in extra_context.items():
       #         if callable(value):
       #             c[key] = value()
       #         else:
       #             c[key] = value
       #     response = HttpResponse(t.render(c), mimetype=mimetype)
       #     populate_xheaders(
       #         request, response, model, getattr(obj, obj._meta.pk.name))
       #     return response
       # @require_http_methods(["GET", "POST"])
       # @signed_terms_required
       # @login_required
       # def group_search(request, extra_context=None, **kwargs):
       #     q = request.GET.get('q')
       #     if request.method == 'GET':
       #         form = AstakosGroupSearchForm({'q': q} if q else None)
       #     else:
       #         form = AstakosGroupSearchForm(get_query(request))
       #         if form.is_valid():
       #             q = form.cleaned_data['q'].strip()
+      #
       #     sorting = 'groupname'
       #     if q:
       #         queryset = AstakosGroup.objects.select_related()
       #         queryset = queryset.filter(~Q(kind__name='default'))
       #         queryset = queryset.filter(name__contains=q)
       #         queryset = queryset.filter(approval_date__isnull=False)
       #         queryset = queryset.extra(select={
       #                                   'groupname': "auth_group.name",
       #                                   'kindname': "im_groupkind.name",
       #                                   'approved_members_num': """
       #                     SELECT COUNT(*) FROM im_membership
       #                     WHERE group_id = im_astakosgroup.group_ptr_id
       #                     AND date_joined IS NOT NULL""",
       #                                   'membership_approval_date': """
       #                     SELECT date_joined FROM im_membership
       #                     WHERE group_id = im_astakosgroup.group_ptr_id
       #                     AND person_id = %s""" % request.user.id,
       #                                   'is_member': """
       #                     SELECT CASE WHEN EXISTS(
       #                     SELECT date_joined FROM im_membership
       #                     WHERE group_id = im_astakosgroup.group_ptr_id
       #                     AND person_id = %s)
       #                     THEN 1 ELSE 0 END""" % request.user.id,
       #                                   'is_owner': """
       #                     SELECT CASE WHEN EXISTS(
       #                     SELECT id FROM im_astakosuser_owner
       #                     WHERE astakosgroup_id = im_astakosgroup.group_ptr_id
       #                     AND astakosuser_id = %s)
       #                     THEN 1 ELSE 0 END""" % request.user.id,
       #                     'is_owner': """SELECT CASE WHEN EXISTS(
       #                         SELECT id FROM im_astakosuser_owner
       #                         WHERE astakosgroup_id = im_astakosgroup.group_ptr_id
       #                         AND astakosuser_id = %s)
       #                         THEN 1 ELSE 0 END""" % request.user.id,
       #                     })
+      #
       #         # validate sorting
       #         sort_form = AstakosGroupSortForm(request.GET)
       #         if sort_form.is_valid():
       #             sorting = sort_form.cleaned_data.get('sorting')
       #         queryset = queryset.order_by(sorting)
+      #
       #     else:
       #         queryset = AstakosGroup.objects.none()
       #     return object_list(
       #         request,
       #         queryset,
       #         paginate_by=PAGINATE_BY_ALL,
       #         page=request.GET.get('page') or 1,
       #         template_name='im/astakosgroup_list.html',
       #         extra_context=dict(form=form,
       #                            is_search=True,
       #                            q=q,
       #                            sorting=sorting))
       # @require_http_methods(["GET", "POST"])
       # @signed_terms_required
       # @login_required
       # def group_all(request, extra_context=None, **kwargs):
       #     q = AstakosGroup.objects.select_related()
       #     q = q.filter(~Q(kind__name='default'))
       #     q = q.filter(approval_date__isnull=False)
       #     q = q.extra(select={
       #                 'groupname': "auth_group.name",
       #                 'kindname': "im_groupkind.name",
       #                 'approved_members_num': """
       #                     SELECT COUNT(*) FROM im_membership
       #                     WHERE group_id = im_astakosgroup.group_ptr_id
       #                     AND date_joined IS NOT NULL""",
       #                 'membership_approval_date': """
       #                     SELECT date_joined FROM im_membership
       #                     WHERE group_id = im_astakosgroup.group_ptr_id
       #                     AND person_id = %s""" % request.user.id,
       #                 'is_member': """
       #                     SELECT CASE WHEN EXISTS(
       #                     SELECT date_joined FROM im_membership
       #                     WHERE group_id = im_astakosgroup.group_ptr_id
       #                     AND person_id = %s)
       #                     THEN 1 ELSE 0 END""" % request.user.id,
       #                  'is_owner': """SELECT CASE WHEN EXISTS(
       #                         SELECT id FROM im_astakosuser_owner
       #                         WHERE astakosgroup_id = im_astakosgroup.group_ptr_id
       #                         AND astakosuser_id = %s)
       #                         THEN 1 ELSE 0 END""" % request.user.id,   })
+      #
       #     # validate sorting
       #     sorting = 'groupname'
       #     sort_form = AstakosGroupSortForm(request.GET)
       #     if sort_form.is_valid():
       #         sorting = sort_form.cleaned_data.get('sorting')
       #     q = q.order_by(sorting)
+      #
       #     return object_list(
       #         request,
       #         q,
       #         paginate_by=PAGINATE_BY_ALL,
       #         page=request.GET.get('page') or 1,
       #         template_name='im/astakosgroup_list.html',
       #         extra_context=dict(form=AstakosGroupSearchForm(),
       #                            is_search=True,
       #                            sorting=sorting))
       ##@require_http_methods(["POST"])
       # @require_http_methods(["POST", "GET"])
       # @signed_terms_required
       # @login_required
       # def group_join(request, group_id):
       #     m = Membership(group_id=group_id,
       #                    person=request.user,
       #                    date_requested=datetime.now())
       #     try:
       #         m.save()
       #         post_save_redirect = reverse(
       #             'group_detail',
       #             kwargs=dict(group_id=group_id))
       #         return HttpResponseRedirect(post_save_redirect)
       #     except IntegrityError, e:
       #         logger.exception(e)
       #         msg = _(astakos_messages.GROUP_JOIN_FAILURE)
       #         messages.error(request, msg)
       #         return group_search(request)
+      #
+      #
       # @require_http_methods(["POST"])
       # @signed_terms_required
       # @login_required
       # def group_leave(request, group_id):
       #     try:
       #         m = Membership.objects.select_related().get(
       #             group__id=group_id,
       #             person=request.user)
       #     except Membership.DoesNotExist:
       #         return HttpResponseBadRequest(_(astakos_messages.NOT_MEMBER))
       #     if request.user in m.group.owner.all():
       #         return HttpResponseForbidden(_(astakos_messages.OWNER_CANNOT_LEAVE_GROUP))
       #     return delete_object(
       #         request,
       #         model=Membership,
       #         object_id=m.id,
       #         template_name='im/astakosgroup_list.html',
       #         post_delete_redirect=reverse(
       #             'group_detail',
       #             kwargs=dict(group_id=group_id)))
       # def handle_membership(func):
       #     @wraps(func)
       #     def wrapper(request, group_id, user_id):
       #         try:
       #             m = Membership.objects.select_related().get(
       #                 group__id=group_id,
       #                 person__id=user_id)
       #         except Membership.DoesNotExist:
       #             return HttpResponseBadRequest(_(astakos_messages.NOT_MEMBER))
       #         else:
       #             if request.user not in m.group.owner.all():
       #                 return HttpResponseForbidden(_(astakos_messages.NOT_OWNER))
       #             func(request, m)
       #             return group_detail(request, group_id)
       #     return wrapper
       #@require_http_methods(["POST"])
       # @require_http_methods(["POST", "GET"])
       # @signed_terms_required
       # @login_required
       # @handle_membership
       # def approve_member(request, membership):
       #     try:
       #         membership.approve()
       #         realname = membership.person.realname
       #         msg = _(astakos_messages.MEMBER_JOINED_GROUP) % locals()
       #         messages.success(request, msg)
       #     except AssertionError:
       #         msg = _(astakos_messages.GROUP_MAX_PARTICIPANT_NUMBER_REACHED)
       #         messages.error(request, msg)
       #     except BaseException, e:
       #         logger.exception(e)
       #         realname = membership.person.realname
       #         msg = _(astakos_messages.GENERIC_ERROR)
       #         messages.error(request, msg)
       # @signed_terms_required
       # @login_required
       # @handle_membership
       # def disapprove_member(request, membership):
       #     try:
       #         membership.disapprove()
       #         realname = membership.person.realname
       #         msg = astakos_messages.MEMBER_REMOVED % locals()
       #         messages.success(request, msg)
       #     except BaseException, e:
       #         logger.exception(e)
       #         msg = _(astakos_messages.GENERIC_ERROR)
       #         messages.error(request, msg)
       @require_http_methods(["GET"])
       @require_http_methods(["POST", "GET"])
       @valid_astakos_user_required
       def resource_usage(request):
           def with_class(entry):
               entry['load_class'] = 'red'
               max_value = float(entry['maxValue'])
               curr_value = float(entry['currValue'])
               entry['ratio_limited']= 0
               if max_value > 0 :
                   entry['ratio'] = (curr_value / max_value) * 100
               else:
                   entry['ratio'] = 0
               if entry['ratio'] < 66:
                   entry['load_class'] = 'yellow'
               if entry['ratio'] < 33:
                   entry['load_class'] = 'green'
               if entry['ratio']<0:
                   entry['ratio'] = 0
               if entry['ratio']>100:
                   entry['ratio_limited'] = 100
               else:
                   entry['ratio_limited'] = entry['ratio']
               return entry
           def pluralize(entry):
               entry['plural'] = engine.plural(entry.get('name'))
               return entry
           result = callpoint.get_user_usage(request.user.id)
           if result.is_success:
               backenddata = map(with_class, result.data)
               data = map(pluralize, result.data)
           else:
               data = None
               messages.error(request, result.reason)
           resource_catalog = result.data
       #     resource_catalog = ResourcePresentation(RESOURCES_PRESENTATION_DATA)
       #     resource_catalog.update_from_result_report(result)
           return render_response('im/resource_usage.html',
                                  data=data,
                                  context_instance=get_context(request),
                                  resource_catalog=resource_catalog,
                                  result=result)
       # def group_create_list(request):
       #     form = PickResourceForm()
       #     return render_response(
       #         template='im/astakosgroup_create_list.html',
       #         context_instance=get_context(request),)
       ##@require_http_methods(["GET"])
       #@require_http_methods(["POST", "GET"])
       #@signed_terms_required
       #@login_required
       #def billing(request):
+      #
       #    today = datetime.today()
       #    month_last_day = calendar.monthrange(today.year, today.month)[1]
       #    start = request.POST.get('datefrom', None)
       #    if start:
       #        today = datetime.fromtimestamp(int(start))
       #        month_last_day = calendar.monthrange(today.year, today.month)[1]
+      #
       #    start = datetime(today.year, today.month, 1).strftime("%s")
       #    end = datetime(today.year, today.month, month_last_day).strftime("%s")
       #    r = request_billing.apply(args=('pgerakios@grnet.gr',
       #                                    int(start) * 1000,
       #                                    int(end) * 1000))
       #    data = {}
+      #
       #    try:
       #        status, data = r.result
       #        data = _clear_billing_data(data)
       #        if status != 200:
       #            messages.error(request, _(astakos_messages.BILLING_ERROR) % status)
       #    except:
       #        messages.error(request, r.result)
+      #
       #    return render_response(
       #        template='im/billing.html',
       #        context_instance=get_context(request),
       #        data=data,
       #        zerodate=datetime(month=1, year=1970, day=1),
       #        today=today,
       #        start=int(start),
       #        month_last_day=month_last_day)
       #def _clear_billing_data(data):
+      #
       #    # remove addcredits entries
       #    def isnotcredit(e):
       #        return e['serviceName'] != "addcredits"
+      #
       #    # separate services
       #    def servicefilter(service_name):
       #        service = service_name
+      #
       #        def fltr(e):
       #            return e['serviceName'] == service
       #        return fltr
+      #
       #    data['bill_nocredits'] = filter(isnotcredit, data['bill'])
       #    data['bill_vmtime'] = filter(servicefilter('vmtime'), data['bill'])
       #    data['bill_diskspace'] = filter(servicefilter('diskspace'), data['bill'])
       #    data['bill_addcredits'] = filter(servicefilter('addcredits'), data['bill'])
+      #
       #    return data
       # #@require_http_methods(["GET"])
       # @require_http_methods(["POST", "GET"])
       # @signed_terms_required
       # @login_required
       # def timeline(request):
       # #    data = {'entity':request.user.email}
       #     timeline_body = ()
       #     timeline_header = ()
       # #    form = TimelineForm(data)
       #     form = TimelineForm()
       #     if request.method == 'POST':
       #         data = request.POST
       #         form = TimelineForm(data)
       #         if form.is_valid():
       #             data = form.cleaned_data
       #             timeline_header = ('entity', 'resource',
       #                                'event name', 'event date',
       #                                'incremental cost', 'total cost')
       #             timeline_body = timeline_charge(
       #                 data['entity'], data['resource'],
       #                 data['start_date'], data['end_date'],
       #                 data['details'], data['operation'])
+      #
       #     return render_response(template='im/timeline.html',
       #                            context_instance=get_context(request),
       #                            form=form,
       #                            timeline_header=timeline_header,
       #                            timeline_body=timeline_body)
       #     return data
       # TODO: action only on POST and user should confirm the removal
       @require_http_methods(["GET", "POST"])
       @login_required
       @signed_terms_required
       def remove_auth_provider(request, pk):
           try:
               provider = request.user.auth_providers.get(pk=pk)
           except AstakosUserAuthProvider.DoesNotExist:
               raise Http404
           if provider.can_remove():
               provider.delete()
               return HttpResponseRedirect(reverse('edit_profile'))
           else:
               raise PermissionDenied
       def how_it_works(request):
           return render_response(
               'im/how_it_works.html',
               context_instance=get_context(request))
       @transaction.commit_manually
       def _create_object(request, model=None, template_name=None,
               template_loader=template_loader, extra_context=None, post_save_redirect=None,
               login_required=False, context_processors=None, form_class=None):
           """
           Based of django.views.generic.create_update.create_object which displays a
           summary page before creating the object.
           """
           rollback = False
           response = None
           if extra_context is None: extra_context = {}
           if login_required and not request.user.is_authenticated():
               return redirect_to_login(request.path)
           try:
               model, form_class = get_model_and_form_class(model, form_class)
               extra_context['edit'] = 0
               if request.method == 'POST':
                   form = form_class(request.POST, request.FILES)
                   if form.is_valid():
                       verify = request.GET.get('verify')
                       edit = request.GET.get('edit')
                       if verify == '1':
                           extra_context['show_form'] = False
                           extra_context['form_data'] = form.cleaned_data
                       elif edit == '1':
                           extra_context['show_form'] = True
                       else:
                           new_object = form.save()
                           msg = _("The %(verbose_name)s was created successfully.") %\
                                       {"verbose_name": model._meta.verbose_name}
                           messages.success(request, msg, fail_silently=True)
                           response = redirect(post_save_redirect, new_object)
               else:
                   form = form_class()
           except BaseException, e:
               logger.exception(e)
               messages.error(request, _(astakos_messages.GENERIC_ERROR))
               rollback = True
           finally:
               if rollback:
                   transaction.rollback()
               else:
                   transaction.commit()
               if response == None:
                   # Create the template, context, response
                   if not template_name:
                       template_name = "%s/%s_form.html" %\
                            (model._meta.app_label, model._meta.object_name.lower())
                   t = template_loader.get_template(template_name)
                   c = RequestContext(request, {
                       'form': form
                   }, context_processors)
                   apply_extra_context(extra_context, c)
                   response = HttpResponse(t.render(c))
               return response
       @transaction.commit_manually
       def _update_object(request, model=None, object_id=None, slug=None,
               slug_field='slug', template_name=None, template_loader=template_loader,
               extra_context=None, post_save_redirect=None, login_required=False,
               context_processors=None, template_object_name='object',
               form_class=None):
           """
           Based of django.views.generic.create_update.update_object which displays a
           summary page before updating the object.
           """
           rollback = False
           response = None
           if extra_context is None: extra_context = {}
           if login_required and not request.user.is_authenticated():
               return redirect_to_login(request.path)
           try:
               model, form_class = get_model_and_form_class(model, form_class)
               obj = lookup_object(model, object_id, slug, slug_field)
               if request.method == 'POST':
                   form = form_class(request.POST, request.FILES, instance=obj)
                   if form.is_valid():
                       verify = request.GET.get('verify')
                       edit = request.GET.get('edit')
                       if verify == '1':
                           extra_context['show_form'] = False
                           extra_context['form_data'] = form.cleaned_data
                       elif edit == '1':
                           extra_context['show_form'] = True
                       else:
                           obj = form.save()
                           msg = _("The %(verbose_name)s was updated successfully.") %\
                                       {"verbose_name": model._meta.verbose_name}
                           messages.success(request, msg, fail_silently=True)
                           response = redirect(post_save_redirect, obj)
               else:
                   form = form_class(instance=obj)
           except BaseException, e:
               logger.exception(e)
               messages.error(request, _(astakos_messages.GENERIC_ERROR))
               rollback = True
           finally:
               if rollback:
                   transaction.rollback()
               else:
                   transaction.commit()
               if response == None:
                   if not template_name:
                       template_name = "%s/%s_form.html" %\
                           (model._meta.app_label, model._meta.object_name.lower())
                   t = template_loader.get_template(template_name)
                   c = RequestContext(request, {
                       'form': form,
                       template_object_name: obj,
                   }, context_processors)
                   apply_extra_context(extra_context, c)
                   response = HttpResponse(t.render(c))
                   populate_xheaders(request, response, model, getattr(obj, obj._meta.pk.attname))
               return response
       @require_http_methods(["GET", "POST"])
       @signed_terms_required
       @login_required
       def project_add(request):
           result = callpoint.list_resources()
           if not result.is_success:
               messages.error(
                   request,
                   'Unable to retrieve system resources: %s' % result.reason
+          )
           else:
               resource_catalog = result.data
           extra_context = {'resource_catalog':resource_catalog, 'show_form':True}
           return _create_object(request, template_name='im/projects/projectapplication_form.html',
               extra_context=extra_context, post_save_redirect='/im/project/list/',
               form_class=ProjectApplicationForm)
       @require_http_methods(["GET"])
       @signed_terms_required
       @login_required
       def project_list(request):
           q = ProjectApplication.objects.filter(owner=request.user)
           q |= ProjectApplication.objects.filter(
               project__in=request.user.projectmembership_set.values_list('project', flat=True)
+          )
           q = q.select_related()
           sorting = 'name'
           sort_form = ProjectSortForm(request.GET)
           if sort_form.is_valid():
               sorting = sort_form.cleaned_data.get('sorting')
           q = q.order_by(sorting)
           return object_list(
               request,
               q,
               paginate_by=PAGINATE_BY_ALL,
               page=request.GET.get('page') or 1,
               template_name='im/projects/project_list.html',
               extra_context={
                   'is_search':False,
                   'sorting':sorting
+              }
+          )
       @require_http_methods(["GET", "POST"])
       @signed_terms_required
       @login_required
       def project_update(request, application_id):
           result = callpoint.list_resources()
           if not result.is_success:
               messages.error(
                   request,
                   'Unable to retrieve system resources: %s' % result.reason
+          )
           else:
               resource_catalog = result.data
           extra_context = {'resource_catalog':resource_catalog, 'show_form':True}
           return _update_object(
               request,
               object_id=application_id,
               template_name='im/projects/projectapplication_form.html',
               extra_context=extra_context, post_save_redirect='/im/project/list/',
               form_class=ProjectApplicationForm)
       @require_http_methods(["GET", "POST"])
       @signed_terms_required
       @login_required
       @transaction.commit_manually
       def project_detail(request, application_id):
           result = callpoint.list_resources()
           if not result.is_success:
               messages.error(
                   request,
                   'Unable to retrieve system resources: %s' % result.reason
+          )
           else:
               resource_catalog = result.data
       #     resource_catalog = ResourcePresentation(RESOURCES_PRESENTATION_DATA)
       #     resource_catalog.update_from_result(result)
           addmembers_form = AddProjectMembersForm()
           if request.method == 'POST':
               addmembers_form = AddProjectMembersForm(request.POST)
               if addmembers_form.is_valid():
                   try:
                       rollback = False
                       map(lambda u: accept_membership(
                               application_id,
                               u,
                               request_user=request.user),
                           addmembers_form.valid_users)
                   except (IOError, PermissionDenied), e:
                       messages.error(request, e)
                   except BaseException, e:
                       rollback = True
                       messages.error(request, e)
                   finally:
                       if rollback == True:
                           transaction.rollback()
                       else:
                           transaction.commit()
                   addmembers_form = AddProjectMembersForm()
           # validate sorting
           sorting = 'person__email'
           form = ProjectMembersSortForm(request.GET or request.POST)
           if form.is_valid():
               sorting = form.cleaned_data.get('sorting')
           return object_detail(
               request,
               queryset=ProjectApplication.objects.select_related(),
               object_id=application_id,
               template_name='im/projects/project_detail.html',
               extra_context={
                   'resource_catalog':resource_catalog,
                   'sorting':sorting,
                   'addmembers_form':addmembers_form
+              }
+          )
       @require_http_methods(["GET", "POST"])
       @signed_terms_required
       @login_required
       def project_search(request):
           queryset = ProjectApplication.objects
           if request.method == 'GET':
               form = ProjectSearchForm()
               queryset = queryset.none()
           else:
               form = ProjectSearchForm(request.POST)
               if form.is_valid():
                   q = form.cleaned_data['q'].strip()
                   queryset = queryset.filter(~Q(project__last_approval_date__isnull=True))
                   queryset = queryset.filter(name__contains=q)
           sorting = 'name'
           # validate sorting
           sort_form = ProjectSortForm(request.GET)
           if sort_form.is_valid():
               sorting = sort_form.cleaned_data.get('sorting')
           queryset = queryset.order_by(sorting)
           return object_list(
               request,
               queryset,
               paginate_by=PAGINATE_BY_ALL,
               page=request.GET.get('page') or 1,
               template_name='im/projects/project_list.html',
               extra_context=dict(
                   form=form,
                   is_search=True,
                   sorting=sorting
+              )
+          )
       @require_http_methods(["GET"])
       @signed_terms_required
       @login_required
       def project_all(request):
           q = ProjectApplication.objects.filter(
               ~Q(project__last_approval_date__isnull=True))
           q = q.select_related()
           sorting = 'name'
           sort_form = ProjectSortForm(request.GET)
           if sort_form.is_valid():
               sorting = sort_form.cleaned_data.get('sorting')
           q = q.order_by(sorting)
           return object_list(
               request,
               q,
               paginate_by=PAGINATE_BY_ALL,
               page=request.GET.get('page') or 1,
               template_name='im/projects/project_list.html',
               extra_context={
                   'form':ProjectSearchForm(),
                   'is_search':True,
                   'sorting':sorting
+              }
+          )
       @require_http_methods(["POST"])
       @signed_terms_required
       @login_required
       @transaction.commit_manually
       def project_join(request, application_id):
           next = request.POST.get('next')
           if not next:
               return HttpResponseBadRequest(
                   _(astakos_messages.MISSING_NEXT_PARAMETER))
           rollback = False
           try:
               join_project(application_id, request.user)
           except (IOError, PermissionDenied), e:
               messages.error(request, e)
           except BaseException, e:
               logger.exception(e)
               messages.error(request, _(astakos_messages.GENERIC_ERROR))
               rollback = True
           else:
               return project_detail(request, id)
           finally:
               if rollback:
                   transaction.rollback()
               else:
                   transaction.commit()
           next = restrict_next(
               request.POST.get('next'),
               domain=COOKIE_DOMAIN)
           return redirect(next)
       @require_http_methods(["POST"])
       @signed_terms_required
       @login_required
       @transaction.commit_manually
       def project_leave(request, application_id):
           next = request.POST.get('next')
           if not next:
               return HttpResponseBadRequest(
                   _(astakos_messages.MISSING_NEXT_PARAMETER))
           rollback = False
           try:
               leave_project(application_id, request.user)
           except (IOError, PermissionDenied), e:
               messages.error(request, e)
           except BaseException, e:
               logger.exception(e)
               messages.error(_(astakos_messages.GENERIC_ERRO))
               rollback = True
           finally:
               if rollback:
                   transaction.rollback()
               else:
                   transaction.commit()
           next = restrict_next(
               request.POST.get('next'),
               domain=COOKIE_DOMAIN)
           return redirect(next)
       @require_http_methods(["GET"])
       @signed_terms_required
       @login_required
       @transaction.commit_manually
       def project_approve_member(request, application_id, user_id):
           rollback = False
           try:
               m = accept_membership(application_id, user_id, request.user)
           except (IOError, PermissionDenied), e:
               messages.error(request, e)
           except BaseException, e:
               logger.exception(e)
               messages.error(_(astakos_messages.GENERIC_ERRO))
               rollback = True
           else:
               realname = m.person.realname
               msg = _(astakos_messages.USER_JOINED_PROJECT) % locals()
               messages.success(request, msg)
           finally:
               if rollback:
                   transaction.rollback()
               else:
                   transaction.commit()
           return project_detail(request, application_id)
       @require_http_methods(["GET"])
       @signed_terms_required
       @login_required
       @transaction.commit_manually
       def project_remove_member(request, application_id, user_id):
           rollback = False
           try:
               m = remove_membership(application_id, user_id, request.user)
           except (IOError, PermissionDenied), e:
               messages.error(request, e)
           except BaseException, e:
               logger.exception(e)
               messages.error(_(astakos_messages.GENERIC_ERRO))
               rollback = True
           else:
               realname = m.person.realname
               msg = _(astakos_messages.USER_LEFT_PROJECT) % locals()
               messages.success(request, msg)
           finally:
               if rollback:
                   transaction.rollback()
               else:
                   transaction.commit()
           return project_detail(request, application_id)
       @require_http_methods(["GET"])
       @signed_terms_required
       @login_required
       @transaction.commit_manually
       def project_reject_member(request, application_id, user_id):
           rollback = False
           try:
               m = reject_membership(application_id, user_id, request.user)
           except (IOError, PermissionDenied), e:
               messages.error(request, e)
           except BaseException, e:
               logger.exception(e)
               messages.error(_(astakos_messages.GENERIC_ERRO))
               rollback = True
           else:
               realname = m.person.realname
               msg = _(astakos_messages.USER_LEFT_PROJECT) % locals()
               messages.success(request, msg)
           finally:
               if rollback:
                   transaction.rollback()
               else:
                   transaction.commit()
           return project_detail(request, application_id)