Source code for ironic.api.middleware.json_ext

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import microversion_parse as mvp
from oslo_log import log

from ironic.api.controllers import base
from ironic.api.controllers.v1 import versions
from ironic.common import utils

LOG = log.getLogger(__name__)

[docs] class JsonExtensionMiddleware(object): """Simplified processing of .json extension. Previously Ironic API used the "guess_content_type_from_ext" feature. It was never needed, as we never allowed non-JSON content types anyway. Now that it is removed, this middleware strips .json extension for backward compatibility. """ def __init__(self, app): = app
[docs] def __call__(self, env, start_response): path = utils.safe_rstrip(env.get('PATH_INFO'), '/') if path and path.endswith('.json'): version_string = self.transform_header(base.Version.string) minor = None request_version = env.get(version_string, '') if request_version: _, minor = mvp.parse_version_string(request_version) env['HAS_JSON_SUFFIX'] = False if minor and minor < versions.MINOR_91_DOT_JSON: LOG.debug('Stripping .json prefix from %s for compatibility ' 'with pecan', path) env['PATH_INFO'] = path[:-5] env['HAS_JSON_SUFFIX'] = True else: env['HAS_JSON_SUFFIX'] = False return, start_response)
[docs] def transform_header(self, version_string): """Transforms version string to HTTP header format.""" return 'HTTP_%s' % version_string.replace('-', '_').upper()