forgot to add parsers file

Signed-off-by: vsoch <vsochat@stanford.edu>

django_oci/views/parsers.py

@@ -0,0 +1,53 @@
+"""
+
+Copyright (c) 2020, Vanessa Sochat
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+"""
+
+from rest_framework.parsers import BaseParser
+from rest_framework import renderers
+from rest_framework.negotiation import BaseContentNegotiation
+
+
+class IgnoreClientContentNegotiation(BaseContentNegotiation):
+    """Important! This class is not used, however if you want to validate
+    (or allow) any media type (e.g., the server doesn't return 406) you
+    can set this as the default content negotiation for any view.
+
+    content_negotiation_class = IgnoreClientContentNegotiation
+    """
+
+    def select_parser(self, request, parsers):
+        """Return the first parser (usually application/json)"""
+        return parsers[0]
+
+    def select_renderer(self, request, renderers, format_suffix):
+        """Return the first renderer (usually application/json)"""
+        return (renderers[0], renderers[0].media_type)
+
+
+class ManifestRenderer(renderers.BaseRenderer):
+    """A ManifestRenderer is provided to the ImageManifest views, which need
+    to accept a content type for the image manifest. Without this
+    renderer, Django will return 406
+    """
+
+    media_type = "application/vnd.oci.image.manifest.v1+json"
+    format = None
+    charset = None
+    render_style = "binary"
+
+    def render(self, data, media_type=None, renderer_context=None):
+        return data