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Viewing changes to nova/api/__init__.py

  • Committer: Bazaar Package Importer
  • Author(s): Chuck Short
  • Date: 2011-01-21 11:48:06 UTC
  • mto: This revision was merged to the branch mainline in revision 9.
  • Revision ID: james.westby@ubuntu.com-20110121114806-v8fvnnl6az4m4ohv
Tags: upstream-2011.1~bzr597
Import upstream version 2011.1~bzr597

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nova/api/__init__.py
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#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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#    License for the specific language governing permissions and limitations
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#    under the License.
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"""
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Root WSGI middleware for all API controllers.
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**Related Flags**
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:osapi_subdomain:  subdomain running the OpenStack API (default: api)
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:ec2api_subdomain:  subdomain running the EC2 API (default: ec2)
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"""
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import routes
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import webob.dec
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from nova import flags
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from nova import utils
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from nova import wsgi
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from nova.api import cloudpipe
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from nova.api import ec2
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from nova.api import openstack
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from nova.api.ec2 import metadatarequesthandler
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flags.DEFINE_string('osapi_subdomain', 'api',
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                    'subdomain running the OpenStack API')
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flags.DEFINE_string('ec2api_subdomain', 'ec2',
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                    'subdomain running the EC2 API')
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FLAGS = flags.FLAGS
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class API(wsgi.Router):
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    """Routes top-level requests to the appropriate controller."""
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    def __init__(self, default_api):
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        osapi_subdomain = {'sub_domain': [FLAGS.osapi_subdomain]}
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        ec2api_subdomain = {'sub_domain': [FLAGS.ec2api_subdomain]}
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        if default_api == 'os':
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            osapi_subdomain = {}
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        elif default_api == 'ec2':
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            ec2api_subdomain = {}
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        mapper = routes.Mapper()
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        mapper.sub_domains = True
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        mapper.connect("/", controller=self.osapi_versions,
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                       conditions=osapi_subdomain)
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        mapper.connect("/v1.0/{path_info:.*}", controller=openstack.API(),
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                       conditions=osapi_subdomain)
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        mapper.connect("/", controller=self.ec2api_versions,
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                       conditions=ec2api_subdomain)
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        mapper.connect("/services/{path_info:.*}", controller=ec2.API(),
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                       conditions=ec2api_subdomain)
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        mrh = metadatarequesthandler.MetadataRequestHandler()
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        for s in ['/latest',
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                  '/2009-04-04',
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                  '/2008-09-01',
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                  '/2008-02-01',
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                  '/2007-12-15',
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                  '/2007-10-10',
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                  '/2007-08-29',
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                  '/2007-03-01',
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                  '/2007-01-19',
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                  '/1.0']:
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            mapper.connect('%s/{path_info:.*}' % s, controller=mrh,
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                           conditions=ec2api_subdomain)
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        mapper.connect("/cloudpipe/{path_info:.*}", controller=cloudpipe.API())
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        super(API, self).__init__(mapper)
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    @webob.dec.wsgify
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    def osapi_versions(self, req):
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        """Respond to a request for all OpenStack API versions."""
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        response = {
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                "versions": [
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                    dict(status="CURRENT", id="v1.0")]}
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        metadata = {
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            "application/xml": {
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                "attributes": dict(version=["status", "id"])}}
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        return wsgi.Serializer(req.environ, metadata).to_content_type(response)
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    @webob.dec.wsgify
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    def ec2api_versions(self, req):
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        """Respond to a request for all EC2 versions."""
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        # available api versions
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        versions = [
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            '1.0',
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            '2007-01-19',
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            '2007-03-01',
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            '2007-08-29',
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            '2007-10-10',
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            '2007-12-15',
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            '2008-02-01',
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            '2008-09-01',
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            '2009-04-04',
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        ]
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        return ''.join('%s\n' % v for v in versions)
 
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"""No-op __init__ for directory full of api goodies."""