root / api / networks.py @ b19653d1
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from synnefo.api.actions import network_actions |
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from synnefo.api.common import method_not_allowed |
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from synnefo.api.faults import BadRequest, Unauthorized |
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from synnefo.api.util import (isoformat, isoparse, get_network, |
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get_request_dict, api_method) |
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from synnefo.db.models import Network |
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from django.conf.urls.defaults 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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urlpatterns = patterns('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'^/(\d+)(?:.json|.xml)?$', 'network_demux'), |
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(r'^/(\d+)/action(?:.json|.xml)?$', 'network_action'), |
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) |
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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 method_not_allowed(request)
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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 == 'PUT': |
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return update_network_name(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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else:
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return method_not_allowed(request)
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def network_to_dict(network, detail=True): |
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d = {'id': network.id, 'name': network.name} |
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if detail:
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d['servers'] = {'values': [vm.id for vm in network.machines.all()]} |
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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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@api_method('GET') |
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def list_networks(request, detail=False): |
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# Normal Response Codes: 200, 203
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# badRequest (400),
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# overLimit (413)
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since = isoparse(request.GET.get('changes-since'))
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if since:
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user_networks = Network.objects.filter(owner=request.user, updated__gte=since) |
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if not user_networks: |
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return HttpResponse(status=304) |
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else:
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user_networks = Network.objects.filter(owner=request.user) |
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networks = [network_to_dict(network, detail) for network in user_networks] |
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if request.serialization == 'xml': |
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data = render_to_string('list_networks.xml', {'networks': networks, 'detail': detail}) |
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else:
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data = json.dumps({'networks': {'values': networks}}) |
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return HttpResponse(data, status=200) |
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@api_method('POST') |
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def create_network(request): |
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# Normal Response Code: 202
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# badMediaType(415),
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# badRequest (400),
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# overLimit (413)
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req = get_request_dict(request) |
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try:
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d = req['network']
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name = d['name']
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except (KeyError, ValueError): |
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raise BadRequest('Malformed request.') |
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network = Network.objects.create(name=name, owner=request.user) |
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networkdict = network_to_dict(network) |
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return render_network(request, networkdict, status=202) |
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@api_method('GET') |
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def get_network_details(request, network_id): |
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# Normal Response Codes: 200, 203
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# badRequest (400),
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# itemNotFound (404),
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# overLimit (413)
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net = get_network(network_id, request.user) |
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netdict = network_to_dict(net) |
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return render_network(request, netdict)
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@api_method('PUT') |
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def update_network_name(request, network_id): |
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# Normal Response Code: 204
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# badRequest (400),
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# badMediaType(415),
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# itemNotFound (404),
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# overLimit (413)
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req = get_request_dict(request) |
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try:
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name = req['network']['name'] |
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except (TypeError, KeyError): |
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raise BadRequest('Malformed request.') |
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net = get_network(network_id, request.user) |
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net.name = name |
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net.save() |
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return HttpResponse(status=204) |
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@api_method('DELETE') |
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def delete_network(request, network_id): |
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# Normal Response Code: 204
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# itemNotFound (404),
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# unauthorized (401),
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# overLimit (413)
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net = get_network(network_id, request.user) |
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net.delete() |
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return HttpResponse(status=204) |
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@api_method('POST') |
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def network_action(request, network_id): |
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net = get_network(network_id, request.user) |
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req = get_request_dict(request) |
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if len(req) != 1: |
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raise BadRequest('Malformed request.') |
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key = req.keys()[0]
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val = req[key] |
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try:
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assert isinstance(val, dict) |
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return network_actions[key](request, net, req[key])
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except KeyError: |
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raise BadRequest('Unknown action.') |
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except AssertionError: |
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raise BadRequest('Invalid argument.') |