Synnefo

# Copyright 2011 GRNET S.A. All rights reserved.

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from datetime import datetime

from logging import getLogger

from django.conf import settings

from django.http import HttpResponse

from django.template.loader import render_to_string

from django.utils import simplejson as json

from synnefo.api.util import api_method, isoformat

log = getLogger('synnefo.api')

VERSION_1_1 = {

    'id': 'v1.1',

    'status': 'CURRENT',

    'updated': '2011-04-01',

    'links': [

        {

            'rel': 'self',

            'href': settings.API_ROOT_URL,

        }

    ]

}

VERSIONS = [VERSION_1_1]

MEDIA_TYPES = [

    {'base': 'application/xml', 'type': 'application/vnd.openstack.compute-v1.1+xml'},

    {'base': 'application/json', 'type': 'application/vnd.openstack.compute-v1.1+json'}

]

DESCRIBED_BY = [

    {

        'rel' : 'describedby',

        'type' : 'application/pdf',

        'href' : 'http://docs.rackspacecloud.com/servers/api/v1.1/cs-devguide-20110125.pdf'

    },

    {

        'rel' : 'describedby',

        'type' : 'application/vnd.sun.wadl+xml',

        'href' : 'http://docs.rackspacecloud.com/servers/api/v1.1/application.wadl'

    }

]

@api_method('GET', atom_allowed=True)

def versions_list(request):

    # Normal Response Codes: 200, 203

    # Error Response Codes: 400, 413, 500, 503

    if request.serialization == 'xml':

        data = render_to_string('versions_list.xml', {'versions': VERSIONS})

    elif request.serialization == 'atom':

        now = isoformat(datetime.now())

        data = render_to_string('versions_list.atom', {'now': now,'versions': VERSIONS})

    else:

        data = json.dumps({'versions': {'values': VERSIONS}})

    return HttpResponse(data)

@api_method('GET', atom_allowed=True)

def version_details(request, api_version):

    # Normal Response Codes: 200, 203

    # Error Response Codes: computeFault (400, 500),

    #                       serviceUnavailable (503),

    #                       unauthorized (401),

    #                       badRequest (400),

    #                       overLimit(413)

    log.debug('version_details %s', api_version)

    # We hardcode to v1.1 since it is the only one we support

    version = VERSION_1_1.copy()

    version['links'] = version['links'] + DESCRIBED_BY

    if request.serialization == 'xml':

        version['media_types'] = MEDIA_TYPES

        data = render_to_string('version_details.xml', {'version': version})

    elif request.serialization == 'atom':

        version['media_types'] = MEDIA_TYPES

        now = isoformat(datetime.now())

        data = render_to_string('version_details.atom', {'now': now,'version': version})

    else:

        version['media-types'] = MEDIA_TYPES

        data = json.dumps({'version': version})

    return HttpResponse(data)