root / snf-cyclades-app / synnefo / api / networks.py @ 6faf3c78
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# Copyright 2011-2013 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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from django.conf import settings |
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from django.conf.urls import patterns |
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from django.http import HttpResponse |
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from django.utils import simplejson as json |
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from django.db import transaction |
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from django.db.models import Q |
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from django.template.loader import render_to_string |
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from snf_django.lib import api |
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from synnefo.api import util |
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from synnefo.db.models import Network |
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from synnefo.logic import networks |
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from logging import getLogger |
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log = getLogger(__name__) |
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urlpatterns = patterns( |
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'synnefo.api.networks',
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(r'^(?:/|.json|.xml)?$', 'demux'), |
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(r'^/detail(?:.json|.xml)?$', 'list_networks', {'detail': True}), |
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(r'^/(\w+)(?:/|.json|.xml)?$', 'network_demux')) |
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def demux(request): |
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if request.method == 'GET': |
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return list_networks(request)
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elif request.method == 'POST': |
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return create_network(request)
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else:
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return api.api_method_not_allowed(request,
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allowed_methods=['GET', 'POST']) |
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def network_demux(request, network_id): |
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if request.method == 'GET': |
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return get_network_details(request, network_id)
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elif request.method == 'DELETE': |
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return delete_network(request, network_id)
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elif request.method == 'PUT': |
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return update_network(request, network_id)
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else:
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return api.api_method_not_allowed(request,
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allowed_methods=['GET',
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'PUT',
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'DELETE'])
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@api.api_method(http_method='GET', user_required=True, logger=log) |
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def list_networks(request, detail=True): |
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log.debug('list_networks detail=%s', detail)
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user_networks = Network.objects.filter(Q(userid=request.user_uniq) | |
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Q(public=True))\
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.order_by('id')
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if detail:
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user_networks = user_networks.prefetch_related("subnets")
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user_networks = api.utils.filter_modified_since(request, |
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objects=user_networks) |
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network_dicts = [network_to_dict(network, detail) |
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for network in user_networks] |
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if request.serialization == 'xml': |
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data = render_to_string('list_networks.xml', {
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"networks": network_dicts})
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else:
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data = json.dumps({'networks': network_dicts})
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return HttpResponse(data, status=200) |
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@api.api_method(http_method='POST', user_required=True, logger=log) |
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def create_network(request): |
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userid = request.user_uniq |
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req = api.utils.get_request_dict(request) |
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log.info('create_network %s', req)
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network_dict = api.utils.get_attribute(req, "network",
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attr_type=dict)
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flavor = api.utils.get_attribute(network_dict, "type",
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attr_type=basestring)
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if flavor not in Network.FLAVORS.keys(): |
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raise api.faults.BadRequest("Invalid network type '%s'" % flavor) |
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if flavor not in settings.API_ENABLED_NETWORK_FLAVORS: |
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raise api.faults.Forbidden("Cannot create network of type '%s'." % |
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flavor) |
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name = api.utils.get_attribute(network_dict, "name", attr_type=basestring, |
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required=False)
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if name is None: |
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name = ""
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network = networks.create(userid=userid, name=name, flavor=flavor, |
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public=False)
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networkdict = network_to_dict(network, detail=True)
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response = render_network(request, networkdict, status=201)
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return response
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@api.api_method(http_method='GET', user_required=True, logger=log) |
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def get_network_details(request, network_id): |
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log.debug('get_network_details %s', network_id)
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network = util.get_network(network_id, request.user_uniq) |
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return render_network(request, network_to_dict(network, detail=True)) |
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@api.api_method(http_method='PUT', user_required=True, logger=log) |
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def update_network(request, network_id): |
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info = api.utils.get_request_dict(request) |
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network = api.utils.get_attribute(info, "network", attr_type=dict, |
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required=True)
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new_name = api.utils.get_attribute(network, "name", attr_type=basestring) |
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network = util.get_network(network_id, request.user_uniq, for_update=True)
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if network.public:
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raise api.faults.Forbidden("Cannot rename the public network.") |
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network = networks.rename(network, new_name) |
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return render_network(request, network_to_dict(network), 200) |
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@api.api_method(http_method='DELETE', user_required=True, logger=log) |
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@transaction.commit_on_success
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def delete_network(request, network_id): |
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log.info('delete_network %s', network_id)
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network = util.get_network(network_id, request.user_uniq, for_update=True)
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if network.public:
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raise api.faults.Forbidden("Cannot delete the public network.") |
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networks.delete(network) |
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return HttpResponse(status=204) |
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def network_to_dict(network, detail=True): |
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d = {'id': str(network.id), 'name': network.name} |
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d['links'] = util.network_to_links(network.id)
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if detail:
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# Loop over subnets. Do not perform any extra query because of prefetch
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# related!
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subnet_ids = [] |
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for subnet in network.subnets.all(): |
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subnet_ids.append(subnet.id) |
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state = "SNF:DRAINED" if network.drained else network.state |
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d['user_id'] = network.userid
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d['tenant_id'] = network.userid
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d['type'] = network.flavor
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d['updated'] = api.utils.isoformat(network.updated)
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d['created'] = api.utils.isoformat(network.created)
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d['status'] = state
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d['public'] = network.public
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d['router:external'] = network.external_router
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d['admin_state_up'] = True |
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d['subnets'] = subnet_ids
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d['SNF:floating_ip_pool'] = network.floating_ip_pool
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d['deleted'] = network.deleted
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return d
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def render_network(request, networkdict, status=200): |
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if request.serialization == 'xml': |
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data = render_to_string('network.xml', {'network': networkdict}) |
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else:
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data = json.dumps({'network': networkdict})
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return HttpResponse(data, status=status)
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