root / snf-cyclades-app / synnefo / helpdesk / views.py @ b4b82ec4
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# Copyright 2012, 2013 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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import re |
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import logging |
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from django.shortcuts import redirect |
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from django.views.generic.simple import direct_to_template |
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from django.conf import settings |
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from django.core.exceptions import PermissionDenied |
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from django.http import Http404, HttpResponseRedirect |
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from django.core.urlresolvers import reverse |
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from urllib import unquote |
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import astakosclient |
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from snf_django.lib import astakos |
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from synnefo.db.models import VirtualMachine, NetworkInterface, Network |
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# server actions specific imports
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from synnefo.api import util |
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from synnefo.logic import backend as servers_backend |
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from synnefo.ui.views import UI_MEDIA_URL |
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logger = logging.getLogger(__name__) |
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HELPDESK_MEDIA_URL = getattr(settings, 'HELPDESK_MEDIA_URL', |
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settings.MEDIA_URL + 'helpdesk/')
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IP_SEARCH_REGEX = re.compile('([0-9]+)(?:\.[0-9]+){3}')
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UUID_SEARCH_REGEX = re.compile('([0-9a-z]{8}-([0-9a-z]{4}-){3}[0-9a-z]{12})')
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VM_SEARCH_REGEX = re.compile('vm(-){0,}(?P<vmid>[0-9]+)')
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def get_token_from_cookie(request, cookiename): |
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"""
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Extract token from the cookie name provided. Cookie should be in the same
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form as astakos service sets its cookie contents::
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<user_uniq>|<user_token>
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"""
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try:
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cookie_content = unquote(request.COOKIES.get(cookiename, None))
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return cookie_content.split("|")[1] |
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except AttributeError: |
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pass
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return None |
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AUTH_COOKIE_NAME = getattr(settings, 'HELPDESK_AUTH_COOKIE_NAME', |
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getattr(settings, 'UI_AUTH_COOKIE_NAME', |
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'_pithos2_a'))
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PERMITTED_GROUPS = getattr(settings, 'HELPDESK_PERMITTED_GROUPS', ['helpdesk']) |
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SHOW_DELETED_VMS = getattr(settings, 'HELPDESK_SHOW_DELETED_VMS', False) |
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def token_check(func): |
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"""
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Mimic csrf security check using user auth token.
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"""
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def wrapper(request, *args, **kwargs): |
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if not hasattr(request, 'user'): |
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raise PermissionDenied
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token = request.POST.get('token', None) |
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if token:
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try:
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req_token = request.user["access"]["token"]["id"] |
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if token == req_token:
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return func(request, *args, **kwargs)
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except KeyError: |
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pass
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raise PermissionDenied
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return wrapper
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def helpdesk_user_required(func, permitted_groups=PERMITTED_GROUPS): |
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"""
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Django view wrapper that checks if identified request user has helpdesk
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permissions (exists in helpdesk group)
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"""
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def wrapper(request, *args, **kwargs): |
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HELPDESK_ENABLED = getattr(settings, 'HELPDESK_ENABLED', True) |
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if not HELPDESK_ENABLED: |
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raise Http404
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token = get_token_from_cookie(request, AUTH_COOKIE_NAME) |
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astakos.get_user(request, settings.ASTAKOS_AUTH_URL, |
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fallback_token=token, logger=logger) |
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if hasattr(request, 'user') and request.user: |
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groups = request.user['access']['user']['roles'] |
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groups = [g["name"] for g in groups] |
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if not groups: |
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logger.error("Failed to access helpdesk view. User: %r",
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request.user_uniq) |
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raise PermissionDenied
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has_perm = False
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for g in groups: |
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if g in permitted_groups: |
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has_perm = True
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if not has_perm: |
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logger.error("Failed to access helpdesk view %r. No valid "
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"helpdesk group (%r) matches user groups (%r)",
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request.user_uniq, permitted_groups, groups) |
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raise PermissionDenied
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else:
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logger.error("Failed to access helpdesk view %r. No authenticated "
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"user found.", request.user_uniq)
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raise PermissionDenied
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logging.info("User %s accessed helpdesk view (%s)", request.user_uniq,
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request.path) |
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return func(request, *args, **kwargs)
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return wrapper
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@helpdesk_user_required
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def index(request): |
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"""
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Helpdesk index view.
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"""
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# if form submitted redirect to details
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account = request.GET.get('account', None) |
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if account:
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return redirect('synnefo.helpdesk.views.account', |
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search_query=account) |
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# show index template
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return direct_to_template(request, "helpdesk/index.html", |
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extra_context={'HELPDESK_MEDIA_URL':
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HELPDESK_MEDIA_URL}) |
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@helpdesk_user_required
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def account(request, search_query): |
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"""
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Account details view.
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"""
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logging.info("Helpdesk search by %s: %s", request.user_uniq, search_query)
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show_deleted = bool(int(request.GET.get('deleted', SHOW_DELETED_VMS))) |
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account_exists = True
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# flag to indicate successfull astakos calls
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account_resolved = False
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vms = [] |
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networks = [] |
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is_ip = IP_SEARCH_REGEX.match(search_query) |
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is_uuid = UUID_SEARCH_REGEX.match(search_query) |
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is_vm = VM_SEARCH_REGEX.match(search_query) |
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account_name = search_query |
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auth_token = request.user['access']['token']['id'] |
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if is_ip:
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try:
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nic = NetworkInterface.objects.filter(ipv4=search_query).exclude( |
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machine__deleted=True).get()
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search_query = nic.machine.userid |
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is_uuid = True
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except NetworkInterface.DoesNotExist:
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account_exists = False
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account = None
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if is_vm:
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vmid = is_vm.groupdict().get('vmid')
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try:
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vm = VirtualMachine.objects.get(pk=int(vmid))
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search_query = vm.userid |
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is_uuid = True
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except VirtualMachine.DoesNotExist:
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account_exists = False
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account = None
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search_query = vmid |
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astakos_client = astakosclient.AstakosClient( |
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auth_token, settings.ASTAKOS_AUTH_URL, |
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retry=2, use_pool=True, logger=logger) |
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account = None
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if is_uuid:
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account = search_query |
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try:
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account_name = astakos_client.get_username(account) |
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except:
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logger.info("Failed to resolve '%s' into account" % account)
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if account_exists and not is_uuid: |
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account_name = search_query |
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try:
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account = astakos_client.get_uuid(account_name) |
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except:
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logger.info("Failed to resolve '%s' into account" % account_name)
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if not account: |
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account_exists = False
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else:
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account_resolved = True
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filter_extra = {} |
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if not show_deleted: |
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filter_extra['deleted'] = False |
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# all user vms
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vms = VirtualMachine.objects.filter(userid=account, |
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**filter_extra).order_by('deleted')
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# return all user private and public networks
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public_networks = Network.objects.filter(public=True,
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nics__machine__userid=account, |
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**filter_extra |
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).order_by('state').distinct()
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private_networks = Network.objects.filter(userid=account, |
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**filter_extra).order_by('state')
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networks = list(public_networks) + list(private_networks) |
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if vms.count() == 0 and private_networks.count() == 0 and not \ |
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account_resolved: |
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account_exists = False
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user_context = { |
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'account_exists': account_exists,
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'is_ip': is_ip,
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'is_vm': is_vm,
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'is_uuid': is_uuid,
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'account': account,
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'search_query': search_query,
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'vms': vms,
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'show_deleted': show_deleted,
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'account_name': account_name,
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'token': request.user['access']['token']['id'], |
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'networks': networks,
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'HELPDESK_MEDIA_URL': HELPDESK_MEDIA_URL,
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'UI_MEDIA_URL': UI_MEDIA_URL
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} |
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return direct_to_template(request, "helpdesk/account.html", |
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extra_context=user_context) |
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@helpdesk_user_required
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@token_check
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def vm_suspend(request, vm_id): |
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vm = VirtualMachine.objects.get(pk=vm_id) |
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vm.suspended = True
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vm.save() |
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logging.info("VM %s suspended by %s", vm_id, request.user_uniq)
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account = vm.userid |
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return HttpResponseRedirect(reverse('helpdesk-details', args=(account,))) |
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@helpdesk_user_required
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@token_check
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def vm_suspend_release(request, vm_id): |
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vm = VirtualMachine.objects.get(pk=vm_id) |
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vm.suspended = False
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vm.save() |
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logging.info("VM %s unsuspended by %s", vm_id, request.user_uniq)
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account = vm.userid |
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return HttpResponseRedirect(reverse('helpdesk-details', args=(account,))) |
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@helpdesk_user_required
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@token_check
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def vm_shutdown(request, vm_id): |
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logging.info("VM %s shutdown by %s", vm_id, request.user_uniq)
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vm = VirtualMachine.objects.get(pk=vm_id) |
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jobId = servers_backend.shutdown_instance(vm) |
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util.start_action(vm, 'STOP', jobId)
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account = vm.userid |
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return HttpResponseRedirect(reverse('helpdesk-details', args=(account,))) |
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@helpdesk_user_required
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@token_check
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def vm_start(request, vm_id): |
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logging.info("VM %s start by %s", vm_id, request.user_uniq)
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vm = VirtualMachine.objects.get(pk=vm_id) |
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jobId = servers_backend.startup_instance(vm) |
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util.start_action(vm, 'START', jobId)
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account = vm.userid |
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return HttpResponseRedirect(reverse('helpdesk-details', args=(account,))) |