ganeti_web/views/jobs.py

   1 # Copyright (C) 2010 Oregon State University et al.
   2 #
   3 # This program is free software; you can redistribute it and/or
   4 # modify it under the terms of the GNU General Public License
   5 # as published by the Free Software Foundation; either version 2
   6 # of the License, or (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  16 # USA.
  17
  18 from django.contrib.auth.decorators import login_required
  19 from django.http import HttpResponse, HttpResponseForbidden
  20 from django.shortcuts import get_object_or_404
  21 from django.utils import simplejson as json
  22 from django.views.generic.detail import DetailView
  23
  24 from ganeti_web.middleware import Http403
  25 from ganeti_web.models import Job, Cluster, VirtualMachine, Node
  26 from ganeti_web.views.generic import NO_PRIVS, LoginRequiredMixin
  27
  28
  29 class JobDetailView(LoginRequiredMixin, DetailView):
  30
  31     template_name = "ganeti/job/detail.html"
  32
  33     def get_object(self, queryset=None):
  34         return get_object_or_404(Job, job_id=self.kwargs["job_id"],
  35                                  cluster__slug=self.kwargs["cluster_slug"])
  36
  37     def get_context_data(self, **kwargs):
  38         job = kwargs["object"]
  39         user = self.request.user
  40         admin = user.is_superuser or user.has_perm("admin", job.cluster)
  41
  42         return {
  43             "job": job,
  44             "cluster_admin": admin,
  45         }
  46
  47
  48 @login_required
  49 def status(request, cluster_slug, job_id, rest=False):
  50     """
  51     returns the raw info of a job
  52     """
  53     job = get_object_or_404(Job, cluster__slug=cluster_slug, job_id=job_id)
  54     if rest:
  55         return job
  56     else:
  57         return HttpResponse(json.dumps(job.info), mimetype='application/json')
  58
  59
  60 @login_required
  61 def clear(request, cluster_slug, job_id):
  62     """
  63     Remove a job.
  64     """
  65
  66     user = request.user
  67     cluster = get_object_or_404(Cluster, slug=cluster_slug)
  68     job = get_object_or_404(Job, cluster__slug=cluster_slug, job_id=job_id)
  69     obj = job.obj
  70
  71     # if not a superuser, check permissions on the object itself
  72     cluster_admin = user.is_superuser or user.has_perm('admin', cluster)
  73
  74     if not cluster_admin:
  75         if isinstance(obj, (Cluster, Node)):
  76             raise Http403(NO_PRIVS)
  77         elif isinstance(obj, (VirtualMachine,)):
  78             # object is a virtual machine, check perms on VM and on Cluster
  79             if not (obj.owner_id == user.get_profile().pk
  80                     or user.has_perm('admin', obj)
  81                     or user.has_perm('admin', obj.cluster)):
  82                 raise Http403(NO_PRIVS)
  83
  84     # If the job points to an object, and the job is the most recent job on
  85     # the object, then clear it from the object.
  86     if obj is not None:
  87         if obj.last_job == job:
  88             obj.last_job = None
  89             obj.ignore_cache = False
  90             obj.save()
  91
  92     # "Clear" the job. With extreme prejudice.
  93     job.delete()
  94
  95     return HttpResponse('1', mimetype='application/json')