views.py 24.6 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 19
from django.contrib import messages
from django.utils.translation import ugettext as _
20

21
from django_tables2 import SingleTableView
22
from braces.views import LoginRequiredMixin
Kálmán Viktor committed
23

24
from .forms import VmCreateForm
25
from .tables import (VmListTable, NodeListTable)
26
from vm.models import (Instance, InstanceTemplate, InterfaceTemplate,
27
                       InstanceActivity, Node, instance_activity)
28
from firewall.models import Vlan, Host, Rule
29
from storage.models import Disk
30

Őry Máté committed
31
logger = logging.getLogger(__name__)
32

33 34

class IndexView(TemplateView):
Kálmán Viktor committed
35
    template_name = "dashboard/index.html"
36

37
    def get_context_data(self, **kwargs):
38 39 40 41 42
        if self.request.user.is_authenticated():
            user = self.request.user
        else:
            user = None

43
        instances = Instance.active.filter(owner=user)
44 45
        context = super(IndexView, self).get_context_data(**kwargs)
        context.update({
46
            'instances': instances[:5],
47
            'more_instances': instances.count() - len(instances[:5])
48 49
        })

50 51 52 53 54 55
        nodes = Node.objects.all()
        context.update({
            'nodes': nodes[:1],
            'more_nodes': nodes.count() - len(nodes[:1])
        })

56
        context.update({
57 58
            'running_vms': instances.filter(state='RUNNING'),
            'running_vm_num': instances.filter(state='RUNNING').count(),
59 60
            'stopped_vm_num': instances.exclude(
                state__in=['RUNNING', 'NOSTATE']).count()
61 62 63
        })
        return context

64

65 66 67 68 69 70 71 72 73 74
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])}


75 76 77 78 79 80 81 82 83 84 85 86
class CheckedDetailView(DetailView):
    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
87
    template_name = "dashboard/vm-detail.html"
88
    model = Instance
89 90

    def get_context_data(self, **kwargs):
91
        context = super(VmDetailView, self).get_context_data(**kwargs)
92 93 94
        instance = context['instance']
        if instance.node:
            port = instance.vnc_port
95
            host = str(instance.node.host.ipv4)
96
            value = signing.dumps({'host': host,
97 98
                                   'port': port},
                                  key=getenv("PROXY_SECRET", 'asdasd')),
99 100 101
            context.update({
                'vnc_url': '%s' % value
            })
102 103 104 105 106

        # activity data
        ia = InstanceActivity.objects.filter(
            instance=self.object, parent=None
        ).order_by('-started').select_related()
107

108
        context['activity'] = ia
109
        context['acl'] = get_acl_data(instance)
110
        return context
Kálmán Viktor committed
111

112 113 114 115 116
    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)

117 118 119
        if request.POST.get('new_name'):
            return self.__set_name(request)

Kálmán Viktor committed
120 121 122 123 124 125
        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)

126 127 128
        if request.POST.get("port") is not None:
            return self.__add_port(request)

129 130 131 132
    def __set_resources(self, request):
        self.object = self.get_object()
        if not self.object.has_level(request.user, 'owner'):
            raise PermissionDenied()
133 134
        if not request.user.has_perm('vm.change_resources'):
            raise PermissionDenied()
135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154

        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}))

155 156
    def __set_name(self, request):
        self.object = self.get_object()
157 158
        if not self.object.has_level(request.user, 'owner'):
            raise PermissionDenied()
159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178
        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
179 180 181
    def __add_tag(self, request):
        new_tag = request.POST.get('new_tag')
        self.object = self.get_object()
182 183
        if not self.object.has_level(request.user, 'owner'):
            raise PermissionDenied()
Kálmán Viktor committed
184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203

        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()
204 205
            if not self.object.has_level(request.user, 'owner'):
                raise PermissionDenied()
Kálmán Viktor committed
206 207 208 209 210 211 212 213 214 215 216 217

            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"
            )

218 219 220 221
    def __add_port(self, request):
        object = self.get_object()
        if not object.has_level(request.user, 'owner'):
            raise PermissionDenied()
222 223
        if not request.user.has_perm('vm.config_ports'):
            raise PermissionDenied()
224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244

        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
245

246 247 248 249 250 251 252 253 254
class NodeDetailView(DetailView):
    template_name = "dashboard/node-detail.html"
    model = Node

    def get_context_data(self, **kwargs):
        context = super(NodeDetailView, self).get_context_data(**kwargs)
        return context


255
class AclUpdateView(View, SingleObjectMixin):
256

257
    def post(self, request, *args, **kwargs):
258
        instance = self.get_object()
259 260
        if not (instance.has_level(request.user, "owner") or
                getattr(instance, 'owner', None) == request.user):
Őry Máté committed
261 262
            logger.warning('Tried to set permissions of %s by non-owner %s.',
                           unicode(instance), unicode(request.user))
263
            raise PermissionDenied()
264 265 266 267 268
        self.set_levels(request, instance)
        self.add_levels(request, instance)
        return redirect(instance)

    def set_levels(self, request, instance):
269 270 271 272 273
        for key, value in request.POST.items():
            m = re.match('perm-([ug])-(\d+)', key)
            if m:
                type, id = m.groups()
                entity = {'u': User, 'g': Group}[type].objects.get(id=id)
274
                instance.set_level(entity, value)
Őry Máté committed
275 276 277
                logger.info("Set %s's acl level for %s to %s by %s.",
                            unicode(entity), unicode(instance),
                            value, unicode(request.user))
278

279
    def add_levels(self, request, instance):
280 281
        name = request.POST['perm-new-name']
        value = request.POST['perm-new']
282 283 284 285 286 287
        if not name:
            return
        try:
            entity = User.objects.get(username=name)
        except User.DoesNotExist:
            entity = None
288 289
            try:
                entity = Group.objects.get(name=name)
290 291 292 293
            except Group.DoesNotExist:
                warning(request, _('User or group "%s" not found.') % name)
                return

294
        instance.set_level(entity, value)
Őry Máté committed
295 296 297
        logger.info("Set %s's new acl level for %s to %s by %s.",
                    unicode(entity), unicode(instance),
                    value, unicode(request.user))
298

Kálmán Viktor committed
299

300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329
class TemplateDetail(DetailView):
    model = InstanceTemplate

    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:
            # return super(TemplateDetail, self).get(request, *args, **kwargs)
            return HttpResponse('soon')


330
class VmList(SingleTableView):
Kálmán Viktor committed
331
    template_name = "dashboard/vm-list.html"
332
    queryset = Instance.active.all()
333
    table_class = VmListTable
334
    table_pagination = False
335

Őry Máté committed
336

337 338 339 340 341
class NodeList(SingleTableView):
    template_name = "dashboard/node-list.html"
    model = Node
    table_class = NodeListTable
    table_pagination = False
342

Őry Máté committed
343

344 345
class VmCreate(TemplateView):

346 347 348
    form_class = VmCreateForm
    form = None

349 350
    def get_template_names(self):
        if self.request.is_ajax():
351
            return ['dashboard/modal-wrapper.html']
352
        else:
353
            return ['dashboard/nojs-wrapper.html']
354

355 356 357
    def get(self, request, form=None, *args, **kwargs):
        if form is None:
            form = self.form_class()
358
        context = self.get_context_data(**kwargs)
359 360
        context.update({
            'template': 'dashboard/vm-create.html',
361 362 363 364 365
            'box_title': 'Create a VM',
            'templates': InstanceTemplate.objects.all(),
            'vlans': Vlan.objects.all(),
            'disks': Disk.objects.exclude(type="qcow2-snap"),
            'vm_create_form': form,
366
        })
367
        return self.render_to_response(context)
368 369 370

    def get_context_data(self, **kwargs):
        context = super(VmCreate, self).get_context_data(**kwargs)
371
        # TODO acl
372 373 374 375
        context.update({
        })

        return context
376

377
    # TODO handle not ajax posts
378
    def post(self, request, *args, **kwargs):
379 380
        if not self.request.user.is_authenticated():
            raise PermissionDenied()
381

382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404
        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)
                    for l in post['unmanaged_networks']] +
                [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)
405
        else:
406 407 408 409 410
            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()
411
        if request.is_ajax():
412 413
            return HttpResponse(json.dumps({'redirect': path}),
                                content_type="application/json")
414
        else:
415
            return redirect(path)
Kálmán Viktor committed
416 417


418 419
class VmDelete(DeleteView):
    model = Instance
420 421 422 423 424 425 426
    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']
427 428 429 430

    def get_context_data(self, **kwargs):
        # this is redundant now, but if we wanna add more to print
        # we'll need this
431
        print kwargs
432 433 434 435 436 437 438 439 440
        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()

441
        object.destroy_async(user=request.user)
442 443 444 445
        success_url = self.get_success_url()
        success_message = _("VM successfully deleted!")

        if request.is_ajax():
446 447
            if request.POST.get('redirect').lower() == "true":
                messages.success(request, success_message)
448 449 450 451 452 453 454 455 456 457 458 459 460 461
            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')
462 463


464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509
class PortDelete(DeleteView):
    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")})


510 511
class VmMassDelete(View):
    def get(self, request, *args, **kwargs):
512 513 514 515 516
        vms = request.GET.getlist('v[]')
        objects = Instance.objects.filter(pk__in=vms)
        return render(request, "dashboard/confirm/mass-delete.html",
                      {'objects': objects})

517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544
    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'))
545 546 547 548


@require_POST
def vm_activity(request, pk):
549
    object = Instance.objects.get(pk=pk)
550 551 552
    if not object.has_level(request.user, 'owner'):
        raise PermissionDenied()

553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585
    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"
    )
586 587


588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611
class TransferOwnershipView(LoginRequiredMixin, DetailView):
    model = Instance
    template_name = 'dashboard/vm-detail-tx-owner.html'

    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")


612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693
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)