views.py 5.45 KB
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# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
# se veut agnostique au réseau considéré, de manière à être installable en
# quelques clics.
#
# Copyright © 2017  Gabriel Détraz
# Copyright © 2017  Goulven Kermarec
# Copyright © 2017  Augustin Lemesle
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""
Fonctions de la page d'accueil et diverses fonctions utiles pour tous
les views
"""
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from __future__ import unicode_literals

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from django.http import Http404
from django.shortcuts import render, redirect
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from django.template.context_processors import csrf
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from django.contrib.auth.decorators import login_required, permission_required
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
from reversion.models import Version
from django.contrib import messages
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from preferences.models import Service
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from preferences.models import OptionalUser, GeneralOption
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import users, preferences, cotisations, topologie, machines
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def form(ctx, template, request):
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    """Form générique, raccourci importé par les fonctions views du site"""
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    context = ctx
    context.update(csrf(request))
    return render(request, template, context)
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def index(request):
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    """Affiche la liste des services sur la page d'accueil de re2o"""
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    services = [[], [], []]
    for indice, serv in enumerate(Service.objects.all()):
        services[indice % 3].append(serv)
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    return form({'services_urls': services}, 're2o/index.html', request)
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#: Binding the corresponding char sequence of history url to re2o models.
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HISTORY_BIND = {
    'user' : users.models.User,
    'ban' : users.models.Ban,
    'whitelist' : users.models.Whitelist,
    'school' : users.models.School,
    'listright' : users.models.ListRight,
    'serviceuser' : users.models.ServiceUser,
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    'service' : preferences.models.Service,
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    'facture' : cotisations.models.Facture,
    'article' : cotisations.models.Article,
    'paiement' : cotisations.models.Paiement,
    'banque' : cotisations.models.Banque,
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    'switch' : topologie.models.Switch,
    'port' : topologie.models.Port,
    'room' : topologie.models.Room,
    'stack' : topologie.models.Stack,
    'model_switch' : topologie.models.ModelSwitch,
    'constructor_switch' : topologie.models.ConstructorSwitch,
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    'machine' : machines.models.Machine,
    'interface' : machines.models.Interface,
    'alias' : machines.models.Domain,
    'machinetype' : machines.models.MachineType,
    'iptype' : machines.models.IpType,
    'extension' : machines.models.Extension,
    'soa' : machines.models.SOA,
    'mx' : machines.models.Mx,
    'txt' : machines.models.Txt,
    'srv' : machines.models.Srv,
    'ns' : machines.models.Ns,
    'service' : machines.models.Service,
    'vlan' : machines.models.Vlan,
    'nas' : machines.models.Vlan,
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}

@login_required
def history(request, object_name, object_id):
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    """Render history for a model.

    The model is determined using the `HISTORY_BIND` dictionnary if none is
    found, raises a Http404. The view checks if the user is allowed to see the
    history using the `can_view` method of the model.

    Args:
        request: The request sent by the user.
        object_name: Name of the model.
        object_id: Id of the object you want to acces history.

    Returns:
        The rendered page of history if access is granted, else the user is
        redirected to their profile page, with an error message.

    Raises:
        Http404: This kind of models doesn't have history.
    """
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    try:
        model = HISTORY_BIND[object_name]
    except KeyError as e:
        raise Http404(u"Il n'existe pas d'historique pour ce modèle.")
    try:
        instance = model.get_instance(object_id)
    except model.DoesNotExist:
        messages.error(request, u"Entrée inexistante")
        return redirect(reverse('users:profil',
            kwargs={'userid':str(request.user.id)}
        ))
    can, msg = instance.can_view(request.user)
    if not can:
        messages.error(request, msg or "Vous ne pouvez pas accéder à ce menu")
        return redirect(reverse(
            'users:profil',
            kwargs={'userid':str(request.user.id)}
        ))
    options, _created = GeneralOption.objects.get_or_create()
    pagination_number = options.pagination_number
    reversions = Version.objects.get_for_object(instance)
    paginator = Paginator(reversions, pagination_number)
    page = request.GET.get('page')
    try:
        reversions = paginator.page(page)
    except PageNotAnInteger:
        # If page is not an integer, deliver first page.
        reversions = paginator.page(1)
    except EmptyPage:
        # If page is out of range (e.g. 9999), deliver last page of result
        reversions = paginator.page(paginator.num_pages)
    return render(
        request,
        're2o/history.html',
        {'reversions': reversions, 'object': instance}
    )