def check_permissions(self):
        """
        Checks that all permissions are set correctly for the users.

        :return: A set of users whose permissions was wrong.

        """
        # Variable to supply some feedback
        changed_permissions = []
        changed_users = []
        warnings = []

        # Check that all the permissions are available.
        for model, perms in ASSIGNED_PERMISSIONS.items():
            if model == 'profile':
                model_obj = get_profile_model()
            else:
                model_obj = get_user_model()

            model_content_type = ContentType.objects.get_for_model(model_obj)

            for perm in perms:
                try:
                    Permission.objects.get(codename=perm[0],
                                           content_type=model_content_type)
                except Permission.DoesNotExist:
                    changed_permissions.append(perm[1])
                    Permission.objects.create(name=perm[1],
                                              codename=perm[0],
                                              content_type=model_content_type)

        # it is safe to rely on settings.ANONYMOUS_USER_ID since it is a
        # requirement of django-guardian
        for user in get_user_model().objects.exclude(id=settings.ANONYMOUS_USER_ID):
            try:
                user_profile = get_user_profile(user=user)
            except ObjectDoesNotExist:
                warnings.append(_("No profile found for %(username)s") \
                                % {'username': user.username})
            else:
                all_permissions = get_perms(user, user_profile) + get_perms(user, user)

                for model, perms in ASSIGNED_PERMISSIONS.items():
                    if model == 'profile':
                        perm_object = get_user_profile(user=user)
                    else:
                        perm_object = user

                    for perm in perms:
                        if perm[0] not in all_permissions:
                            assign_perm(perm[0], user, perm_object)
                            changed_users.append(user)

        return (changed_permissions, changed_users, warnings)

    def test_change_email_form(self):
        user = get_user_model().objects.get(pk=1)
        invalid_data_dicts = [
            # No change in e-mail address
            {'data': {'email': '[email protected]'},
             'error': ('email', ['You\'re already known under this email.'])},
            # An e-mail address used by another
            {'data': {'email': '[email protected]'},
             'error': ('email', ['This email is already in use. Please supply a different email.'])},
        ]

        # Override locale settings since we are checking for existence of error
        # messaged written in english. Note: it should not be necessasy but
        # we have experienced such locale issues during tests on Travis builds.
        # See: https://github.com/bread-and-pepper/django-userena/issues/446
        with override('en'):
            for invalid_dict in invalid_data_dicts:
                form = forms.ChangeEmailForm(user, data=invalid_dict['data'])
                self.failIf(form.is_valid())
                self.assertEqual(form.errors[invalid_dict['error'][0]],
                                 invalid_dict['error'][1])

        # Test a valid post
        form = forms.ChangeEmailForm(user,
                                     data={'email': '[email protected]'})
        self.failUnless(form.is_valid())

    def get_context_data(self, username, extra_context=None, *args, **kwargs):
        context = super(ProfileDetailView, self).get_context_data(*args, **kwargs)
        
        user = get_object_or_404(get_user_model(),
                                 username__iexact=username)

        # Get profile
        profile_model = get_profile_model()
        try:
            profile = user.get_profile()
        except profile_model.DoesNotExist:
            profile = profile_model.objects.create(user=user)

        # Lookup badges
        services = profile.services.all()
        services_detailed = profile.service_detailed.all()
        badges = ServiceBadge.objects.filter(services__in=services).distinct().order_by('category')
        
        for b in badges:
            b.user_services = []
            for service_detailed in services_detailed:
                if service_detailed.service in b.services.all():
                    b.user_services.append(service_detailed)

        # Check perms
        if not profile.can_view_profile(self.request.user):
            return HttpResponseForbidden(_("You don't have permission to view this profile."))

        # context
        context['profile'] = profile
        context['hide_email'] = userena_settings.USERENA_HIDE_EMAIL
        context['badges'] = badges

        return context

    def authenticate(self, identification, password=None, check_password=True):
        """
        Authenticates a user through the combination email/username with
        password.

        :param identification:
            A string containing the username or e-mail of the user that is
            trying to authenticate.

        :password:
            Optional string containing the password for the user.

        :param check_password:
            Boolean that defines if the password should be checked for this
            user.  Always keep this ``True``. This is only used by userena at
            activation when a user opens a page with a secret hash.

        :return: The signed in :class:`User`.

        """
        User = get_user_model()
        try:
            django.core.validators.validate_email(identification)
            try: user = User.objects.get(email__iexact=identification)
            except User.DoesNotExist: return None
        except django.core.validators.ValidationError:
            try: user = User.objects.get(username__iexact=identification)
            except User.DoesNotExist: return None
        if check_password:
            if user.check_password(password):
                return user
            return None
        else: return user

def profile_detail(request, username,
    template_name=userena_settings.USERENA_PROFILE_DETAIL_TEMPLATE,
    extra_context=None, **kwargs):
    """
    Detailed view of an user.

    :param username:
        String of the username of which the profile should be viewed.

    :param template_name:
        String representing the template name that should be used to display
        the profile.

    :param extra_context:
        Dictionary of variables which should be supplied to the template. The
        ``profile`` key is always the current profile.

    **Context**

    ``profile``
        Instance of the currently viewed ``Profile``.

    """
    user = get_object_or_404(get_user_model(), username__iexact=username)
    profile = get_user_profile(user=user)
    if not profile.can_view_profile(request.user):
        raise PermissionDenied
    if not extra_context: extra_context = dict()
    extra_context['profile'] = profile
    extra_context['hide_email'] = userena_settings.USERENA_HIDE_EMAIL
    return ExtraContextTemplateView.as_view(template_name=template_name,
                                            extra_context=extra_context)(request)

 def clean_username(self):
     """
         Validate that the username is alphanumeric and is not already in use.
         Also validates that the username is not listed in
         ``USERENA_FORBIDDEN_USERNAMES`` list.
     """
     try:
         user = get_user_model().objects.get(username__iexact=self.cleaned_data['username'])
     except get_user_model().DoesNotExist:
         pass
     else:
         if userena_settings.USERENA_ACTIVATION_REQUIRED and UserenaSignup.objects.filter(user__username__iexact=self.cleaned_data['username']).exclude(activation_key=userena_settings.USERENA_ACTIVATED):
             raise forms.ValidationError(_('This username is already taken but not confirmed. Please check your email for verification steps.'))
         raise forms.ValidationError(_('This username is already taken.'))
     if self.cleaned_data['username'].lower() in userena_settings.USERENA_FORBIDDEN_USERNAMES:
         raise forms.ValidationError(_('This username is not allowed.'))
     return self.cleaned_data['username']

 def get_queryset(self):
     username = self.kwargs['username']
     self.recipient = get_object_or_404(get_user_model(),
                                        username__iexact=username)
     queryset = Message.objects.get_conversation_between(self.request.user,
                                                         self.recipient)
     self._update_unread_messages(queryset)
     return queryset

def profile_detail_extended(request, username, edit_profile_form=EditProfileForm, template_name='userena/profile_detail_extended.html', success_url=None,extra_context=None, **kwargs):
	user = get_object_or_404(get_user_model(), username__iexact=username)
	profile = get_user_profile(user=user)
	if not extra_context: extra_context = dict()
	extra_context['profile'] = profile
	extra_context['profExpData'] = Profile_Experience.objects.filter(profile = profile)
	extra_context['projExpData'] = Project_Experience.objects.filter(profile = profile)
	extra_context['awardsData'] = Awards.objects.filter(profile = profile)
	return ExtraContextTemplateView.as_view(template_name=template_name, extra_context=extra_context)(request)

    def create_user_with_name(self, username, first_name, last_name, 
                              email, password, active=False,
                              send_email=True):
        """
        A simple wrapper that creates a new :class:`User`.

        :param username:
            String containing the username of the new user.

        :param email:
            String containing the email address of the new user.

        :param password:
            String containing the password for the new user.

        :param active:
            Boolean that defines if the user requires activation by clicking
            on a link in an e-mail. Defaults to ``False``.

        :param send_email:
            Boolean that defines if the user should be sent an email. You could
            set this to ``False`` when you want to create a user in your own
            code, but don't want the user to activate through email.

        :return: :class:`User` instance representing the new user.

        """
        now = get_datetime_now()

        new_user = get_user_model().objects.create_user(
            username, email, first_name, last_name, password)
        new_user.is_active = active
        new_user.save()

        userena_profile = self.create_userena_profile(new_user)

        # All users have an empty profile
        profile_model = get_profile_model()
        try:
            new_profile = new_user.get_profile()
        except profile_model.DoesNotExist:
            new_profile = profile_model(user=new_user)
            new_profile.save(using=self._db)

        # Give permissions to view and change profile
        for perm in ASSIGNED_PERMISSIONS['profile']:
            assign(perm[0], new_user, new_profile)

        # Give permissions to view and change itself
        for perm in ASSIGNED_PERMISSIONS['user']:
            assign(perm[0], new_user, new_user)

        if send_email:
            userena_profile.send_activation_email(first_name, last_name)

        return new_user

    def delete_expired_users(self):
        """
        Checks for expired users and delete's the ``User`` associated with
        it. Skips if the user ``is_staff``.

        :return: A list containing the deleted users.

        """
        deleted_users = []
        for user in get_user_model().objects.filter(is_staff=False, is_active=False):
            if user.userena_signup.activation_key_expired():
                deleted_users.append(user)
                user.delete()
        return deleted_users

def profile_detail(request, username,extra_context=None, **kwargs):

    template_name = 'userena/profile_detail.html'
    user = get_object_or_404(get_user_model(),
                             username__iexact=username)
    profile_model = get_profile_model()
    try:
        profile = user.get_profile()
    except profile_model.DoesNotExist:
        profile = profile_model.objects.create(user=user)

    if not profile.can_view_profile(request.user):
        raise PermissionDenied
    return render(request, template_name, {'profile': profile,'bulletins' : Post.objects.filter(tag1='announcement').order_by("-time")})

def profile_detail(request, username,
    template_name=userena_settings.USERENA_PROFILE_DETAIL_TEMPLATE,
    extra_context=None, **kwargs):
    """
    Detailed view of an user.

    :param username:
        String of the username of which the profile should be viewed.

    :param template_name:
        String representing the template name that should be used to display
        the profile.

    :param extra_context:
        Dictionary of variables which should be supplied to the template. The
        ``profile`` key is always the current profile.

    **Context**

    ``profile``
        Instance of the currently viewed ``Profile``.

    """
    user = get_object_or_404(get_user_model(),
                             username__iexact=username)

    if Pago.objects.filter(user=user).exists():
        last_pago = Pago.objects.filter(user=user).order_by('-fecha_expiracion').get()
    else:
        last_pago = None

    today = date.today()

    profile_model = get_profile_model()
    try:
        profile = user.get_profile()
    except profile_model.DoesNotExist:
        profile = profile_model.objects.create(user=user)


    if not profile.can_view_profile(request.user):
        return HttpResponseForbidden(_("You don't have permission to view this profile."))
    if not extra_context: extra_context = dict()
    extra_context['profile'] = user.get_profile()
    extra_context['hide_email'] = userena_settings.USERENA_HIDE_EMAIL
    if last_pago is None or last_pago.fecha_expiracion < today:
        extra_context['suscripcion_status'] = "Inactiva"
    return ExtraContextTemplateView.as_view(template_name=template_name,
                                            extra_context=extra_context)(request)

def profile_detail(request, username, template_name=userena_settings.USERENA_PROFILE_DETAIL_TEMPLATE, extra_context=None, **kwargs):
    """
    Detailed view of an user.

    :param username:
        String of the username of which the profile should be viewed.

    :param template_name:
        String representing the template name that should be used to display
        the profile.

    :param extra_context:
        Dictionary of variables which should be supplied to the template. The
        ``profile`` key is always the current profile.

    **Context**

    ``profile``
        Instance of the currently viewed ``Profile``.

    """
    user = get_object_or_404(get_user_model(),
                             username__iexact=username)

    profile_model = get_profile_model()
    try:
        profile = user.get_profile()
    except profile_model.DoesNotExist:
        profile = profile_model.objects.create(user=user)

    if not profile.can_view_profile(request.user):
        return HttpResponseForbidden(_("You don't have permission to view this profile."))
    if not extra_context:
        extra_context = dict()
    
    extra_context['profile'] = user.get_profile()
    extra_context['hide_email'] = userena_settings.USERENA_HIDE_EMAIL
    extra_context['location'] = request.user_location["user_location_lat_lon"]
    extra_context['is_admin'] = user.is_superuser
    extra_context['per_page'] = int(request.GET.get('per_page', 6))

    tabs_page = "profile-detail"
    active_tab = request.session.get(tabs_page, "account-events")
    extra_context['active_tab'] = active_tab

    return ExtraContextTemplateView.as_view(
        template_name=template_name,
        extra_context=extra_context
    )(request)    

    def test_signin_redirect(self):
        """
        Test redirect function which should redirect the user after a
        succesfull signin.

        """
        # Test with a requested redirect
        self.failUnlessEqual(signin_redirect(redirect='/accounts/'), '/accounts/')

        # Test with only the user specified
        user = get_user_model().objects.get(pk=1)
        self.failUnlessEqual(signin_redirect(user=user),
                             '/accounts/%s/' % user.username)

        # The ultimate fallback, probably never used
        self.failUnlessEqual(signin_redirect(), settings.LOGIN_REDIRECT_URL)

def _friends(request,username,
                 template_name='friends.html', success_url=None,
                 extra_context=None):
    user = get_object_or_404(get_user_model(),
                             username__iexact=username)
    profile = user.get_profile()
    user_initial = {'first_name': user.first_name,
                    'last_name': user.last_name}
    data = locals()
    if not extra_context: extra_context = dict()
    #extra_context['ftype'] = ftype
    extra_context['profile'] = profile
    #extra_context['user'] = user
    #more_data = {'username':username,'ftype':ftype}
    #return direct_to_template(template = 'friends.html', kwargs=kwargs)
    return ExtraContextTemplateView.as_view(template_name=template_name,
                                            extra_context=extra_context)(request)

def profile_detail(request, username,
    template_name=userena_settings.USERENA_PROFILE_DETAIL_TEMPLATE,
    extra_context=None, **kwargs):
    """
    Detailed view of an user.

    :param username:
        String of the username of which the profile should be viewed.

    :param template_name:
        String representing the template name that should be used to display
        the profile.

    :param extra_context:
        Dictionary of variables which should be supplied to the template. The
        ``profile`` key is always the current profile.

    **Context**

    ``profile``
        Instance of the currently viewed ``Profile``.

    """
    user = get_object_or_404(get_user_model(),
                             username__iexact=username)
    ganaderia = 'Sin asignar'
    if Ganaderia.objects.all():
        if Ganaderia.objects.filter(perfil=user.id):
            ganaderia = Ganaderia.objects.get(perfil=user.id)

    profile_model = get_profile_model()
    try:
        profile = user.get_profile()
    except profile_model.DoesNotExist:
        profile = profile_model.objects.create(user=user)

    if not profile.can_view_profile(request.user):
        raise PermissionDenied
    if not extra_context: extra_context = dict()
    extra_context['profile'] = user.get_profile()
    extra_context['hide_email'] = userena_settings.USERENA_HIDE_EMAIL
    extra_context['ganaderia'] = ganaderia
    return ExtraContextTemplateView.as_view(template_name=template_name,
                                            extra_context=extra_context)(request)

    def can_view_profile(self, user):
        """
        Can the :class:`User` view this profile?

        Returns a boolean if a user has the rights to view the profile of this
        user.

        Users are divided into four groups:

            ``Open``
                Everyone can view your profile

            ``Closed``
                Nobody can view your profile.

            ``Registered``
                Users that are registered on the website and signed
                in only.

            ``Admin``
                Special cases like superadmin and the owner of the profile.

        Through the ``privacy`` field a owner of an profile can define what
        they want to show to whom.

        :param user:
            A Django :class:`User` instance.

        """
        # Simple cases first, we don't want to waste CPU and DB hits.
        # Everyone.
        if self.privacy == 'open':
            return True
        # Registered users.
        elif self.privacy == 'registered' \
        and isinstance(user, get_user_model()):
            return True

        # Checks done by guardian for owner and admins.
        elif 'view_profile' in get_perms(user, self):
            return True

        # Fallback to closed profile.
        return False

    def create_user(self, username, email, password, active=False, send_email=True):
        """
        A simple wrapper that creates a new :class:`User`.

        :param username:
            String containing the username of the new user.

        :param email:
            String containing the email address of the new user.

        :param password:
            String containing the password for the new user.

        :param active:
            Boolean that defines if the user requires activation by clicking
            on a link in an e-mail. Defaults to ``False``.

        :param send_email:
            Boolean that defines if the user should be sent an email. You could
            set this to ``False`` when you want to create a user in your own
            code, but don't want the user to activate through email.

        :return: :class:`User` instance representing the new user.

        """

        new_user = get_user_model().objects.create_user(username, email, password)
        new_user.is_active = active
        new_user.save()

        # Give permissions to view and change profile
        for perm in ASSIGNED_PERMISSIONS["profile"]:
            assign_perm(perm[0], new_user, get_user_profile(user=new_user))

        # Give permissions to view and change itself
        for perm in ASSIGNED_PERMISSIONS["user"]:
            assign_perm(perm[0], new_user, new_user)

        userena_profile = self.create_userena_profile(new_user)

        if send_email:
            userena_profile.send_activation_email()

        return new_user

def profile_detail(request, username):
    """
        Add extra context and returns userena_profile_detail view
    """
    extra_context = {}
    user = get_object_or_404(get_user_model(),
                             username__iexact=username)

    # Get profile
    profile_model = get_profile_model()
    profile = user.get_profile()
    # Check perms
    if not profile.can_view_profile(request.user):
        return HttpResponseForbidden(_("You don't have permission to view this profile."))

    # context
    extra_context['profile'] = profile
    extra_context['hide_email'] = userena_settings.USERENA_HIDE_EMAIL

    return userena_profile_detail(request=request, username=username, extra_context=extra_context)

def profile_detail(request, username,
    template_name=userena_settings.USERENA_PROFILE_DETAIL_TEMPLATE,
    extra_context=None, **kwargs):

    user = get_object_or_404(get_user_model(),
                             username__iexact=username)

    profile_model = get_profile_model()
    
    try:
        profile = user.get_profile()
    except profile_model.DoesNotExist:
        profile = profile_model.objects.create(user=user)
            
    if not extra_context: extra_context = dict()
    extra_context['profile'] = user.get_profile()
    extra_context['company'] = Company.objects.get(id=profile.company_id)
    extra_context['hide_email'] = userena_settings.USERENA_HIDE_EMAIL
    return ExtraContextTemplateView.as_view(template_name=template_name,
                                            extra_context=extra_context)(request)