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re2o/machines/views.py

106 lines
4.1 KiB
Python

# App de gestion des machines pour re2o
# Gabriel Détraz
# Gplv2
from django.shortcuts import render, redirect
from django.shortcuts import render_to_response, get_object_or_404
from django.core.context_processors import csrf
from django.template import Context, RequestContext, loader
from django.contrib import messages
from .models import NewMachineForm, EditMachineForm, EditInterfaceForm, AddInterfaceForm, NewInterfaceForm
from .models import Machine, Interface, IpList
from users.models import User
def unassign_ips(user):
machines = Interface.objects.filter(machine=Machine.objects.filter(user=user))
for machine in machines:
unassign_ipv4(machine)
return
def assign_ips(user):
""" Assign une ipv4 aux machines d'un user """
machines = Interface.objects.filter(machine=Machine.objects.filter(user=user))
for machine in machines:
if not machine.ipv4:
interface = assign_ipv4(machine)
interface.save()
return
def free_ip():
""" Renvoie la liste des ip disponibles """
return IpList.objects.filter(interface__isnull=True)
def assign_ipv4(interface):
""" Assigne une ip à l'interface """
free_ips = free_ip()
if free_ips:
interface.ipv4 = free_ips[0]
return interface
def unassign_ipv4(interface):
interface.ipv4 = None
interface.save()
def form(ctx, template, request):
c = ctx
c.update(csrf(request))
return render_to_response(template, c, context_instance=RequestContext(request))
def new_machine(request, userid):
try:
user = User.objects.get(pk=userid)
except User.DoesNotExist:
messages.error(request, u"Utilisateur inexistant" )
return redirect("/machines/")
machine = NewMachineForm(request.POST or None)
interface = NewInterfaceForm(request.POST or None)
if machine.is_valid() and interface.is_valid():
new_machine = machine.save(commit=False)
new_machine.user = user
new_machine.save()
new_interface = interface.save(commit=False)
new_interface.machine = new_machine
if free_ip():
new_interface = assign_ipv4(new_interface)
else:
messages.error(request, u"Il n'y a plus d'ip disponibles")
new_interface.save()
messages.success(request, "La machine a été crée")
return redirect("/users/")
return form({'machineform': machine, 'interfaceform': interface}, 'machines/machine.html', request)
def edit_machine(request, interfaceid):
try:
interface = Interface.objects.get(pk=interfaceid)
except Interface.DoesNotExist:
messages.error(request, u"Interface inexistante" )
return redirect("/machines")
machine_form = EditMachineForm(request.POST or None, instance=interface.machine)
interface_form = EditInterfaceForm(request.POST or None, instance=interface)
if machine_form.is_valid() and interface_form.is_valid():
machine_form.save()
interface_form.save()
messages.success(request, "La machine a été modifiée")
return redirect("/machines/")
return form({'machineform': machine_form, 'interfaceform': interface_form}, 'machines/machine.html', request)
def new_interface(request, machineid):
try:
machine = Machine.objects.get(pk=machineid)
except Machine.DoesNotExist:
messages.error(request, u"Machine inexistante" )
return redirect("/machines")
interface_form = AddInterfaceForm(request.POST or None)
machine_form = EditMachineForm(request.POST or None, instance=machine)
if interface_form.is_valid() and machine_form.is_valid():
machine_form.save()
new_interface = interface_form.save(commit=False)
new_interface.machine = machine
new_interface.save()
messages.success(request, "L'interface a été ajoutée")
return redirect("/machines/")
return form({'machineform': machine_form, 'interfaceform': interface_form}, 'machines/machine.html', request)
def index(request):
machine_list = Interface.objects.order_by('pk')
return render(request, 'machines/index.html', {'machine_list': machine_list})