views.py 35.5 KB
Newer Older
1 2
from os import getenv
import json
Őry Máté committed
3
import logging
4 5 6
import re

from django.contrib.auth.models import User, Group
7
from django.contrib.messages import warning
8
from django.core.exceptions import (
9
    PermissionDenied, SuspiciousOperation,
10
)
11 12
from django.core import signing
from django.core.urlresolvers import reverse, reverse_lazy
13
from django.http import HttpResponse, HttpResponseRedirect, Http404
14
from django.shortcuts import redirect, render
15
from django.views.decorators.http import require_POST
16
from django.views.generic.detail import SingleObjectMixin
17
from django.views.generic import (TemplateView, DetailView, View, DeleteView,
18
                                  UpdateView, CreateView)
19 20
from django.contrib import messages
from django.utils.translation import ugettext as _
21

22
from django.forms.models import inlineformset_factory
23
from django_tables2 import SingleTableView
24
from braces.views import LoginRequiredMixin, SuperuserRequiredMixin
Kálmán Viktor committed
25

26
from .forms import VmCreateForm, TemplateForm, LeaseForm, NodeForm, HostForm
27 28
from .tables import (VmListTable, NodeListTable, NodeVmListTable,
                     TemplateListTable, LeaseListTable)
29
from vm.models import (Instance, InstanceTemplate, InterfaceTemplate,
30
                       InstanceActivity, Node, instance_activity, Lease)
31
from firewall.models import Vlan, Host, Rule
32
from storage.models import Disk
33
from dashboard.models import Favourite
34

Őry Máté committed
35
logger = logging.getLogger(__name__)
36

37

38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
# github.com/django/django/blob/stable/1.6.x/django/contrib/messages/views.py
class SuccessMessageMixin(object):
    """
    Adds a success message on successful form submission.
    """
    success_message = ''

    def form_valid(self, form):
        response = super(SuccessMessageMixin, self).form_valid(form)
        success_message = self.get_success_message(form.cleaned_data)
        if success_message:
            messages.success(self.request, success_message)
        return response

    def get_success_message(self, cleaned_data):
        return self.success_message % cleaned_data


56
class IndexView(LoginRequiredMixin, TemplateView):
Kálmán Viktor committed
57
    template_name = "dashboard/index.html"
58

59
    def get_context_data(self, **kwargs):
60 61 62 63
        if self.request.user.is_authenticated():
            user = self.request.user
        else:
            user = None
64
        context = super(IndexView, self).get_context_data(**kwargs)
65

66
        favs = Instance.objects.filter(favourite__user=self.request.user)
67 68
        instances = Instance.get_objects_with_level(
            'user', user).filter(destroyed=None)
69 70 71
        display = list(favs) + list(set(instances) - set(favs))
        for d in display:
            d.fav = True if d in favs else False
72
        context.update({
73
            'instances': display[:5],
74
            'more_instances': instances.count() - len(instances[:5])
75 76
        })

77 78
        nodes = Node.objects.all()
        context.update({
79 80 81 82 83 84 85 86 87
            'nodes': nodes[:10],
            'more_nodes': nodes.count() - len(nodes[:10]),
            'sum_node_num': nodes.count(),
            'node_num': {
                'running': Node.get_state_count(True, True),
                'missing': Node.get_state_count(False, True),
                'disabled': Node.get_state_count(True, False),
                'offline': Node.get_state_count(False, False)
            }
88 89
        })

90
        context.update({
91 92
            'running_vms': instances.filter(state='RUNNING'),
            'running_vm_num': instances.filter(state='RUNNING').count(),
93 94
            'stopped_vm_num': instances.exclude(
                state__in=['RUNNING', 'NOSTATE']).count()
95 96 97
        })
        return context

98

99 100 101 102 103 104 105 106 107 108
def get_acl_data(obj):
    levels = obj.ACL_LEVELS
    users = obj.get_users_with_level()
    users = [{'user': u, 'level': l} for u, l in users]
    groups = obj.get_groups_with_level()
    groups = [{'group': g, 'level': l} for g, l in groups]
    return {'users': users, 'groups': groups, 'levels': levels,
            'url': reverse('dashboard.views.vm-acl', args=[obj.pk])}


109
class CheckedDetailView(LoginRequiredMixin, DetailView):
110 111 112 113 114 115 116 117 118 119 120
    read_level = 'user'

    def get_context_data(self, **kwargs):
        context = super(CheckedDetailView, self).get_context_data(**kwargs)
        instance = context['instance']
        if not instance.has_level(self.request.user, self.read_level):
            raise PermissionDenied()
        return context


class VmDetailView(CheckedDetailView):
Kálmán Viktor committed
121
    template_name = "dashboard/vm-detail.html"
122
    model = Instance
123 124

    def get_context_data(self, **kwargs):
125
        context = super(VmDetailView, self).get_context_data(**kwargs)
126 127 128
        instance = context['instance']
        if instance.node:
            port = instance.vnc_port
129
            host = str(instance.node.host.ipv4)
130
            value = signing.dumps({'host': host,
131 132
                                   'port': port},
                                  key=getenv("PROXY_SECRET", 'asdasd')),
133 134 135
            context.update({
                'vnc_url': '%s' % value
            })
136 137 138 139 140

        # activity data
        ia = InstanceActivity.objects.filter(
            instance=self.object, parent=None
        ).order_by('-started').select_related()
141

142
        context['activity'] = ia
143
        context['acl'] = get_acl_data(instance)
144
        return context
Kálmán Viktor committed
145

146 147 148 149 150
    def post(self, request, *args, **kwargs):
        if (request.POST.get('ram-size') and request.POST.get('cpu-count')
                and request.POST.get('cpu-priority')):
            return self.__set_resources(request)

151 152 153
        if request.POST.get('new_name'):
            return self.__set_name(request)

Kálmán Viktor committed
154 155 156 157 158 159
        if request.POST.get('new_tag') is not None:
            return self.__add_tag(request)

        if request.POST.get("to_remove") is not None:
            return self.__remove_tag(request)

160 161 162
        if request.POST.get("port") is not None:
            return self.__add_port(request)

163 164 165 166
    def __set_resources(self, request):
        self.object = self.get_object()
        if not self.object.has_level(request.user, 'owner'):
            raise PermissionDenied()
167 168
        if not request.user.has_perm('vm.change_resources'):
            raise PermissionDenied()
169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188

        resources = {
            'num_cores': request.POST.get('cpu-count'),
            'ram_size': request.POST.get('ram-size'),
            'priority': request.POST.get('cpu-priority')
        }
        Instance.objects.filter(pk=self.object.pk).update(**resources)

        success_message = _("Resources successfully updated!")
        if request.is_ajax():
            response = {'message': success_message}
            return HttpResponse(
                json.dumps(response),
                content_type="application/json"
            )
        else:
            messages.success(request, success_message)
            return redirect(reverse_lazy("dashboard.views.detail",
                                         kwargs={'pk': self.object.pk}))

189 190
    def __set_name(self, request):
        self.object = self.get_object()
191 192
        if not self.object.has_level(request.user, 'owner'):
            raise PermissionDenied()
193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212
        new_name = request.POST.get("new_name")
        Instance.objects.filter(pk=self.object.pk).update(
            **{'name': new_name})

        success_message = _("VM successfully renamed!")
        if request.is_ajax():
            response = {
                'message': success_message,
                'new_name': new_name,
                'vm_pk': self.object.pk
            }
            return HttpResponse(
                json.dumps(response),
                content_type="application/json"
            )
        else:
            messages.success(request, success_message)
            return redirect(reverse_lazy("dashboard.views.detail",
                                         kwargs={'pk': self.object.pk}))

Kálmán Viktor committed
213 214 215
    def __add_tag(self, request):
        new_tag = request.POST.get('new_tag')
        self.object = self.get_object()
216 217
        if not self.object.has_level(request.user, 'owner'):
            raise PermissionDenied()
Kálmán Viktor committed
218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237

        if len(new_tag) < 1:
            message = u"Please input something!"
        elif len(new_tag) > 20:
            message = u"Tag name is too long!"
        else:
            self.object.tags.add(new_tag)

        try:
            messages.error(request, message)
        except:
            pass

        return redirect(reverse_lazy("dashboard.views.detail",
                                     kwargs={'pk': self.object.pk}))

    def __remove_tag(self, request):
        try:
            to_remove = request.POST.get('to_remove')
            self.object = self.get_object()
238 239
            if not self.object.has_level(request.user, 'owner'):
                raise PermissionDenied()
Kálmán Viktor committed
240 241 242 243 244 245 246 247 248 249 250 251

            self.object.tags.remove(to_remove)
            message = u"Success"
        except:  # note this won't really happen
            message = u"Not success"

        if request.is_ajax():
            return HttpResponse(
                json.dumps({'message': message}),
                content_type="application=json"
            )

252 253
    def __add_port(self, request):
        object = self.get_object()
254 255
        if (not object.has_level(request.user, 'owner') or
                not request.user.has_perm('vm.config_ports')):
256
            raise PermissionDenied()
257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277

        port = request.POST.get("port")
        proto = request.POST.get("proto")

        try:
            error = None
            host = Host.objects.get(pk=request.POST.get("host_pk"))
            host.add_port(proto, private=port)
        except Host.DoesNotExist:
            error = _("Host not found!")
        except Exception, e:
            error = u', '.join(e.messages)

        if request.is_ajax():
            pass
        else:
            if error:
                messages.error(request, error)
            return redirect(reverse_lazy("dashboard.views.detail",
                                         kwargs={'pk': self.get_object().pk}))

Kálmán Viktor committed
278

279
class NodeDetailView(LoginRequiredMixin, SuperuserRequiredMixin, DetailView):
280 281 282 283 284
    template_name = "dashboard/node-detail.html"
    model = Node

    def get_context_data(self, **kwargs):
        context = super(NodeDetailView, self).get_context_data(**kwargs)
285 286
        instances = Instance.active.filter(node=self.object)
        context['table'] = NodeVmListTable(instances)
287 288
        return context

289 290 291
    def post(self, request, *args, **kwargs):
        if request.POST.get('new_name'):
            return self.__set_name(request)
292 293
        if request.POST.get('new_status'):
            return self.__set_status(request)
294 295 296 297 298 299 300 301 302 303 304 305 306

    def __set_name(self, request):
        self.object = self.get_object()
        new_name = request.POST.get("new_name")
        Node.objects.filter(pk=self.object.pk).update(
            **{'name': new_name})

        success_message = _("Node successfully renamed!")
        if request.is_ajax():
            response = {
                'message': success_message,
                'new_name': new_name,
                'node_pk': self.object.pk
307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334
            }
            return HttpResponse(
                json.dumps(response),
                content_type="application/json"
            )
        else:
            messages.success(request, success_message)
            return redirect(reverse_lazy("dashboard.views.node-detail",
                                         kwargs={'pk': self.object.pk}))

    def __set_status(self, request):
        self.object = self.get_object()
        new_status = request.POST.get("new_status")
        if new_status == "enable":
            Node.objects.filter(pk=self.object.pk).update(
                **{'enabled': True})
        elif new_status == "disable":
            Node.objects.filter(pk=self.object.pk).update(
                **{'enabled': False})
        else:
            return

        success_message = _("Node successfully changed status!")
        if request.is_ajax():
            response = {
                'message': success_message,
                'new_status': new_status,
                'node_pk': self.object.pk
335 336 337 338 339 340 341 342 343 344 345
            }
            return HttpResponse(
                json.dumps(response),
                content_type="application/json"
            )
        else:
            messages.success(request, success_message)
            return redirect(reverse_lazy("dashboard.views.node-detail",
                                         kwargs={'pk': self.object.pk}))


346
class AclUpdateView(LoginRequiredMixin, View, SingleObjectMixin):
347

348
    def post(self, request, *args, **kwargs):
349
        instance = self.get_object()
350 351
        if not (instance.has_level(request.user, "owner") or
                getattr(instance, 'owner', None) == request.user):
Őry Máté committed
352 353
            logger.warning('Tried to set permissions of %s by non-owner %s.',
                           unicode(instance), unicode(request.user))
354
            raise PermissionDenied()
355 356 357 358 359
        self.set_levels(request, instance)
        self.add_levels(request, instance)
        return redirect(instance)

    def set_levels(self, request, instance):
360 361 362
        for key, value in request.POST.items():
            m = re.match('perm-([ug])-(\d+)', key)
            if m:
363 364 365 366 367 368
                typ, id = m.groups()
                entity = {'u': User, 'g': Group}[typ].objects.get(id=id)
                if instance.owner == entity:
                    logger.info("Tried to set owner's acl level for %s by %s.",
                                unicode(instance), unicode(request.user))
                    continue
369
                instance.set_level(entity, value)
Őry Máté committed
370 371 372
                logger.info("Set %s's acl level for %s to %s by %s.",
                            unicode(entity), unicode(instance),
                            value, unicode(request.user))
373

374
    def add_levels(self, request, instance):
375 376
        name = request.POST['perm-new-name']
        value = request.POST['perm-new']
377 378 379 380 381 382
        if not name:
            return
        try:
            entity = User.objects.get(username=name)
        except User.DoesNotExist:
            entity = None
383 384
            try:
                entity = Group.objects.get(name=name)
385 386 387 388
            except Group.DoesNotExist:
                warning(request, _('User or group "%s" not found.') % name)
                return

389
        instance.set_level(entity, value)
Őry Máté committed
390 391 392
        logger.info("Set %s's new acl level for %s to %s by %s.",
                    unicode(entity), unicode(instance),
                    value, unicode(request.user))
393

Kálmán Viktor committed
394

395 396 397 398 399 400
class TemplateCreate(SuccessMessageMixin, CreateView):
    model = InstanceTemplate
    form_class = TemplateForm
    template_name = "dashboard/template-create.html"
    success_message = _("Successfully created a new template!")

401 402 403 404 405 406 407 408 409
    def get(self, *args, **kwargs):
        self.parent = self.request.GET.get("parent")
        return super(TemplateCreate, self).get(*args, **kwargs)

    def get_form_kwargs(self):
        kwargs = super(TemplateCreate, self).get_form_kwargs()
        kwargs['parent'] = getattr(self, "parent", None)
        return kwargs

410 411 412 413
    def get_success_url(self):
        return reverse_lazy("dashboard.views.template-list")


414
class TemplateDetail(LoginRequiredMixin, SuccessMessageMixin, UpdateView):
415
    model = InstanceTemplate
416 417 418
    template_name = "dashboard/template-edit.html"
    form_class = TemplateForm
    success_message = _("Successfully modified template!")
419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442

    def get(self, request, *args, **kwargs):
        if request.is_ajax():
            template = InstanceTemplate.objects.get(pk=kwargs['pk'])
            template = {
                'num_cores': template.num_cores,
                'ram_size': template.ram_size,
                'priority': template.priority,
                'arch': template.arch,
                'description': template.description,
                'system': template.system,
                'name': template.name,
                'disks': [{'pk': d.pk, 'name': d.name}
                          for d in template.disks.all()],
                'network': [
                    {'vlan_pk': i.vlan.pk, 'vlan': i.vlan.name,
                     'managed': i.managed}
                    for i in InterfaceTemplate.objects.filter(
                        template=self.get_object()).all()
                ]
            }
            return HttpResponse(json.dumps(template),
                                content_type="application/json")
        else:
443 444 445 446 447 448 449
            return super(TemplateDetail, self).get(request, *args, **kwargs)

    def get_success_url(self):
        return reverse_lazy("dashboard.views.template-detail",
                            kwargs=self.kwargs)


450
class TemplateList(LoginRequiredMixin, SingleTableView):
451 452 453 454 455 456 457 458 459
    template_name = "dashboard/template-list.html"
    model = InstanceTemplate
    table_class = TemplateListTable
    table_pagination = False

    def get_context_data(self, *args, **kwargs):
        context = super(TemplateList, self).get_context_data(*args, **kwargs)
        context['lease_table'] = LeaseListTable(Lease.objects.all())
        return context
460 461


462
class VmList(LoginRequiredMixin, SingleTableView):
Kálmán Viktor committed
463
    template_name = "dashboard/vm-list.html"
464
    table_class = VmListTable
465
    table_pagination = False
466 467
    model = Instance

468 469
    def get(self, *args, **kwargs):
        if self.request.is_ajax():
470 471 472 473 474 475 476
            favs = Instance.objects.filter(
                favourite__user=self.request.user).values_list('pk', flat=True)
            instances = Instance.get_objects_with_level(
                'user', self.request.user).filter(
                destroyed=None).values('pk', 'name', 'state')
            for i in instances:
                i['fav'] = True if i['pk'] in favs else False
477
            return HttpResponse(
478
                json.dumps(list(instances)),  # instances is ValuesQuerySet
479 480 481 482 483
                content_type="application/json",
            )
        else:
            return super(VmList, self).get(*args, **kwargs)

484
    def get_queryset(self):
485
        logger.debug('VmList.get_queryset() called. User: %s',
486 487 488
                     unicode(self.request.user))
        return Instance.get_objects_with_level(
            'user', self.request.user).filter(destroyed=None).all()
489

490

491
class NodeList(LoginRequiredMixin, SuperuserRequiredMixin, SingleTableView):
492 493 494 495
    template_name = "dashboard/node-list.html"
    model = Node
    table_class = NodeListTable
    table_pagination = False
496

Őry Máté committed
497

498
class VmCreate(LoginRequiredMixin, TemplateView):
499

500 501 502
    form_class = VmCreateForm
    form = None

503 504
    def get_template_names(self):
        if self.request.is_ajax():
505
            return ['dashboard/modal-wrapper.html']
506
        else:
507
            return ['dashboard/nojs-wrapper.html']
508

509 510 511
    def get(self, request, form=None, *args, **kwargs):
        if form is None:
            form = self.form_class()
512
        context = self.get_context_data(**kwargs)
513 514
        context.update({
            'template': 'dashboard/vm-create.html',
515 516 517 518 519
            'box_title': 'Create a VM',
            'templates': InstanceTemplate.objects.all(),
            'vlans': Vlan.objects.all(),
            'disks': Disk.objects.exclude(type="qcow2-snap"),
            'vm_create_form': form,
520
        })
521
        return self.render_to_response(context)
522 523 524

    def get_context_data(self, **kwargs):
        context = super(VmCreate, self).get_context_data(**kwargs)
525
        # TODO acl
526 527 528 529
        context.update({
        })

        return context
530

531
    # TODO handle not ajax posts
532
    def post(self, request, *args, **kwargs):
533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548
        form = self.form_class(request.POST)
        if not form.is_valid():
            return self.get(request, form, *args, **kwargs)
        post = form.cleaned_data
        user = request.user

        template = post['template']
        if request.user.has_perm('vm.set_resources'):
            ikwargs = {
                'num_cores': post['cpu_count'],
                'ram_size': post['ram_size'],
                'priority': post['cpu_priority'],
            }

            networks = (
                [InterfaceTemplate(vlan=l, managed=True)
549
                    for l in post['managed_networks']] +
550 551 552 553 554 555
                [InterfaceTemplate(vlan=l, managed=False)
                    for l in post['unmanaged_networks']])
            disks = post['disks']
            inst = Instance.create_from_template(
                template=template, owner=user, networks=networks,
                disks=disks, **ikwargs)
556
        else:
557 558 559 560 561
            inst = Instance.create_from_template(
                template=template, owner=user)
        inst.deploy_async(user=request.user)
        messages.success(request, _('VM successfully created!'))
        path = inst.get_absolute_url()
562
        if request.is_ajax():
563 564
            return HttpResponse(json.dumps({'redirect': path}),
                                content_type="application/json")
565
        else:
566
            return redirect(path)
Kálmán Viktor committed
567

568

569
class NodeCreate(LoginRequiredMixin, SuperuserRequiredMixin, TemplateView):
570

571 572 573 574 575 576
    form_class = HostForm
    hostform = None

    formset_class = inlineformset_factory(Host, Node, form=NodeForm, extra=1)
    formset = None

577 578 579 580 581 582
    def get_template_names(self):
        if self.request.is_ajax():
            return ['dashboard/modal-wrapper.html']
        else:
            return ['dashboard/nojs-wrapper.html']

583 584 585 586 587
    def get(self, request, hostform=None, formset=None, *args, **kwargs):
        if hostform is None:
            hostform = self.form_class()
        if formset is None:
            formset = self.formset_class(instance=Host())
588 589 590
        context = self.get_context_data(**kwargs)
        context.update({
            'template': 'dashboard/node-create.html',
591 592 593 594
            'box_title': 'Create a Node',
            'hostform': hostform,
            'formset': formset,

595 596 597 598 599 600 601 602 603 604 605 606 607
        })
        return self.render_to_response(context)

    def get_context_data(self, **kwargs):
        context = super(NodeCreate, self).get_context_data(**kwargs)
        # TODO acl
        context.update({
        })

        return context

    # TODO handle not ajax posts
    def post(self, request, *args, **kwargs):
608 609
        if not self.request.user.is_authenticated():
            raise PermissionDenied()
610

611 612 613 614 615 616 617 618 619 620 621 622 623 624
        hostform = self.form_class(request.POST)
        formset = self.formset_class(request.POST, Host())
        if not hostform.is_valid():
            return self.get(request, hostform, formset, *args, **kwargs)
        hostform.setowner(request.user)
        savedform = hostform.save(commit=False)
        formset = self.formset_class(request.POST, instance=savedform)
        if not formset.is_valid():
            return self.get(request, hostform, formset, *args, **kwargs)

        savedform.save()
        nodemodel = formset.save()
        messages.success(request, _('Node successfully created!'))
        path = nodemodel[0].get_absolute_url()
625
        if request.is_ajax():
626 627
            return HttpResponse(json.dumps({'redirect': path}),
                                content_type="application/json")
628
        else:
629
            return redirect(path)
630 631


632
class VmDelete(LoginRequiredMixin, DeleteView):
633
    model = Instance
634 635 636 637 638 639 640
    template_name = "dashboard/confirm/base-delete.html"

    def get_template_names(self):
        if self.request.is_ajax():
            return ['dashboard/confirm/ajax-delete.html']
        else:
            return ['dashboard/confirm/base-delete.html']
641 642 643 644 645 646 647

    def get_success_url(self):
        next = self.request.POST.get('next')
        if next:
            return next
        else:
            return reverse_lazy('dashboard.index')
648

649
    def get_context_data(self, **kwargs):
650 651 652
        object = self.get_object()
        if not object.has_level(self.request.user, 'owner'):
            raise PermissionDenied()
653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679
        # this is redundant now, but if we wanna add more to print
        # we'll need this
        context = super(VmDelete, self).get_context_data(**kwargs)
        return context

    # github.com/django/django/blob/master/django/views/generic/edit.py#L245
    def delete(self, request, *args, **kwargs):
        object = self.get_object()
        if not object.has_level(request.user, 'owner'):
            raise PermissionDenied()

        object.destroy_async(user=request.user)
        success_url = self.get_success_url()
        success_message = _("VM successfully deleted!")

        if request.is_ajax():
            if request.POST.get('redirect').lower() == "true":
                messages.success(request, success_message)
            return HttpResponse(
                json.dumps({'message': success_message}),
                content_type="application/json",
            )
        else:
            messages.success(request, success_message)
            return HttpResponseRedirect(success_url)


680
class NodeDelete(LoginRequiredMixin, SuperuserRequiredMixin, DeleteView):
681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723

    """This stuff deletes the node.
    """
    model = Node
    template_name = "dashboard/confirm/base-delete.html"

    def get_template_names(self):
        if self.request.is_ajax():
            return ['dashboard/confirm/ajax-delete.html']
        else:
            return ['dashboard/confirm/base-delete.html']

    def get_context_data(self, **kwargs):
        # this is redundant now, but if we wanna add more to print
        # we'll need this
        context = super(NodeDelete, self).get_context_data(**kwargs)
        return context

    # github.com/django/django/blob/master/django/views/generic/edit.py#L245
    def delete(self, request, *args, **kwargs):
        object = self.get_object()

        object.delete()
        success_url = self.get_success_url()
        success_message = _("Node successfully deleted!")

        if request.is_ajax():
            if request.POST.get('redirect').lower() == "true":
                messages.success(request, success_message)
            return HttpResponse(
                json.dumps({'message': success_message}),
                content_type="application/json",
            )
        else:
            messages.success(request, success_message)
            return HttpResponseRedirect(success_url)

    def get_success_url(self):
        next = self.request.POST.get('next')
        if next:
            return next
        else:
            return reverse_lazy('dashboard.index')
724

725

726
class PortDelete(LoginRequiredMixin, DeleteView):
727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771
    model = Rule
    pk_url_kwarg = 'rule'

    def get_template_names(self):
        if self.request.is_ajax():
            return ['dashboard/confirm/ajax-delete.html']
        else:
            return ['dashboard/confirm/base-delete.html']

    def get_context_data(self, **kwargs):
        context = super(PortDelete, self).get_context_data(**kwargs)
        rule = kwargs.get('object')
        instance = rule.host.interface_set.get().instance
        context['title'] = _("Port delete confirmation")
        context['text'] = _("Are you sure you want to close %(port)d/"
                            "%(proto)s on %(vm)s?" % {'port': rule.dport,
                                                      'proto': rule.proto,
                                                      'vm': instance})
        return context

    def delete(self, request, *args, **kwargs):
        rule = Rule.objects.get(pk=kwargs.get("rule"))
        instance = rule.host.interface_set.get().instance
        if not instance.has_level(request.user, 'owner'):
            raise PermissionDenied()

        super(PortDelete, self).delete(request, *args, **kwargs)

        success_url = self.get_success_url()
        success_message = _("Port successfully removed!")

        if request.is_ajax():
            return HttpResponse(
                json.dumps({'message': success_message}),
                content_type="application/json",
            )
        else:
            messages.success(request, success_message)
            return HttpResponseRedirect("%s#network" % success_url)

    def get_success_url(self):
        return reverse_lazy('dashboard.views.detail',
                            kwargs={'pk': self.kwargs.get("pk")})


772
class VmMassDelete(LoginRequiredMixin, View):
773
    def get(self, request, *args, **kwargs):
774 775 776 777 778
        vms = request.GET.getlist('v[]')
        objects = Instance.objects.filter(pk__in=vms)
        return render(request, "dashboard/confirm/mass-delete.html",
                      {'objects': objects})

779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806
    def post(self, request, *args, **kwargs):
        vms = request.POST.getlist('vms')
        names = []
        if vms is not None:
            for i in Instance.objects.filter(pk__in=vms):
                if not i.has_level(request.user, 'owner'):
                    logger.info('Tried to delete instance #%d without owner '
                                'permission by %s.', i.pk,
                                unicode(request.user))
                    raise PermissionDenied()  # no need for rollback or proper
                                            # error message, this can't
                                            # normally happen.
                i.destroy_async(request.user)
                names.append(i.name)

        success_message = _("Mass delete complete, the following VMs were " +
                            "deleted: %s!" % u', '.join(names))

        # we can get this only via AJAX ...
        if request.is_ajax():
            return HttpResponse(
                json.dumps({'message': success_message}),
                content_type="application/json"
            )
        else:
            messages.success(request, success_message)
            next = request.GET.get('next')
            return redirect(next if next else reverse_lazy('dashboard.index'))
807 808


809 810 811 812 813 814 815 816 817 818
class LeaseCreate(SuccessMessageMixin, CreateView):
    model = Lease
    form_class = LeaseForm
    template_name = "dashboard/lease-create.html"
    success_message = _("Successfully created a new lease!")

    def get_success_url(self):
        return reverse_lazy("dashboard.views.template-list")


819
class LeaseDetail(LoginRequiredMixin, SuccessMessageMixin, UpdateView):
820 821 822 823 824 825 826 827 828
    model = Lease
    form_class = LeaseForm
    template_name = "dashboard/lease-edit.html"
    success_message = _("Successfully modified lease!")

    def get_success_url(self):
        return reverse_lazy("dashboard.views.lease-detail", kwargs=self.kwargs)


829 830
@require_POST
def vm_activity(request, pk):
831
    object = Instance.objects.get(pk=pk)
832 833 834
    if not object.has_level(request.user, 'owner'):
        raise PermissionDenied()

835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867
    latest = request.POST.get('latest')
    latest_sub = request.POST.get('latest_sub')

    instance = Instance.objects.get(pk=pk)
    new_sub_activities = InstanceActivity.objects.filter(
        parent=latest, pk__gt=latest_sub,
        instance=instance)
    # new_activities = InstanceActivity.objects.filter(
    #     parent=None, instance=instance, pk__gt=latest).values('finished')
    latest_sub_finished = InstanceActivity.objects.get(pk=latest_sub).finished

    time_string = "%H:%M:%S"
    new_sub_activities = [
        {'name': a.get_readable_name(), 'id': a.pk,
         'finished': None if a.finished is None else a.finished.strftime(
             time_string
         )
         } for a in new_sub_activities
    ]

    response = {
        'new_sub_activities': new_sub_activities,
        # TODO 'new_acitivites': new_activities,
        'is_parent_finished': True if InstanceActivity.objects.get(
            pk=latest).finished is not None else False,
        'latest_sub_finished': None if latest_sub_finished is None else
        latest_sub_finished.strftime(time_string)
    }

    return HttpResponse(
        json.dumps(response),
        content_type="application/json"
    )
868 869


870 871 872 873 874 875 876 877 878 879 880 881 882
class FavouriteView(TemplateView):

    def post(self, *args, **kwargs):
        user = self.request.user
        vm = Instance.objects.get(pk=self.request.POST.get("vm"))
        try:
            Favourite.objects.get(instance=vm, user=user).delete()
            return HttpResponse("Deleted!")
        except Favourite.DoesNotExist:
            Favourite(instance=vm, user=user).save()
            return HttpResponse("Added!")


883 884
class TransferOwnershipView(LoginRequiredMixin, DetailView):
    model = Instance
885
    template_name = 'dashboard/vm-detail/tx-owner.html'
886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906

    def post(self, request, *args, **kwargs):
        try:
            new_owner = User.objects.get(username=request.POST['name'])
        except User.DoesNotExist:
            raise Http404()
        except KeyError:
            raise SuspiciousOperation()

        obj = self.get_object()
        if not (obj.owner == request.user or
                request.user.is_superuser):
            raise PermissionDenied()

        token = signing.dumps((obj.pk, new_owner.pk),
                              salt=TransferOwnershipConfirmView.get_salt())
        return HttpResponse("%s?key=%s" % (
            reverse('dashboard.views.vm-transfer-ownership-confirm'), token),
            content_type="text/plain")


907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988
class TransferOwnershipConfirmView(LoginRequiredMixin, View):
    max_age = 3 * 24 * 3600
    success_message = _("Ownership successfully transferred.")

    @classmethod
    def get_salt(cls):
        return unicode(cls)

    def get(self, request, *args, **kwargs):
        """Confirm ownership transfer based on token.
        """
        try:
            key = request.GET['key']
            logger.debug('Confirm dialog for token %s.', key)
            instance, new_owner = self.get_instance(key, request.user)
        except KeyError:
            raise Http404()
        except PermissionDenied():
            messages.error(request, _('This token is for an other user.'))
            raise
        except SuspiciousOperation:
            messages.error(request, _('This token is invalid or has expired.'))
            raise PermissionDenied()
        return render(request,
                      "dashboard/confirm/base-transfer-ownership.html",
                      dictionary={'instance': instance, 'key': key})

    def post(self, request, *args, **kwargs):
        """Really transfer ownership based on token.
        """
        try:
            key = request.POST['key']
            instance, owner = self.get_instance(key, request.user)
        except KeyError:
            logger.debug('Posted to %s without key field.',
                         unicode(self.__class__))
            raise SuspiciousOperation()

        old = instance.owner
        with instance_activity(code_suffix='ownership-transferred',
                               instance=instance, user=request.user):
            instance.owner = request.user
            instance.clean()
            instance.save()
        messages.success(request, self.success_message)
        logger.info('Ownership of %s transferred from %s to %s.',
                    unicode(instance), unicode(old), unicode(request.user))
        return HttpResponseRedirect(instance.get_absolute_url())

    def get_instance(self, key, user):
        """Get object based on signed token.
        """
        try:
            instance, new_owner = (
                signing.loads(key, max_age=self.max_age,
                              salt=self.get_salt()))
        except signing.BadSignature as e:
            logger.error('Tried invalid token. Token: %s, user: %s. %s',
                         key, unicode(user), unicode(e))
            raise SuspiciousOperation()
        except ValueError as e:
            logger.error('Tried invalid token. Token: %s, user: %s. %s',
                         key, unicode(user), unicode(e))
            raise SuspiciousOperation()
        except TypeError as e:
            logger.error('Tried invalid token. Token: %s, user: %s. %s',
                         key, unicode(user), unicode(e))
            raise SuspiciousOperation()

        try:
            instance = Instance.objects.get(id=instance)
        except Instance.DoesNotExist as e:
            logger.error('Tried token to nonexistent instance %d. '
                         'Token: %s, user: %s. %s',
                         instance, key, unicode(user), unicode(e))
            raise Http404()

        if new_owner != user.pk:
            logger.error('%s (%d) tried the token for %s. Token: %s.',
                         unicode(user), user.pk, new_owner, key)
            raise PermissionDenied()
        return (instance, new_owner)