docker.images/ansible.awx/awx-17.1.0/awx/api/swagger.py

114 lines
4.2 KiB
Python

import json
import warnings
from coreapi.document import Object, Link
from rest_framework import exceptions
from rest_framework.permissions import AllowAny
from rest_framework.renderers import CoreJSONRenderer
from rest_framework.response import Response
from rest_framework.schemas import SchemaGenerator, AutoSchema as DRFAuthSchema
from rest_framework.views import APIView
from rest_framework_swagger import renderers
class SuperUserSchemaGenerator(SchemaGenerator):
def has_view_permissions(self, path, method, view):
#
# Generate the Swagger schema as if you were a superuser and
# permissions didn't matter; this short-circuits the schema path
# discovery to include _all_ potential paths in the API.
#
return True
class AutoSchema(DRFAuthSchema):
def get_link(self, path, method, base_url):
link = super(AutoSchema, self).get_link(path, method, base_url)
try:
serializer = self.view.get_serializer()
except Exception:
serializer = None
warnings.warn('{}.get_serializer() raised an exception during '
'schema generation. Serializer fields will not be '
'generated for {} {}.'
.format(self.view.__class__.__name__, method, path))
link.__dict__['deprecated'] = getattr(self.view, 'deprecated', False)
# auto-generate a topic/tag for the serializer based on its model
if hasattr(self.view, 'swagger_topic'):
link.__dict__['topic'] = str(self.view.swagger_topic).title()
elif serializer and hasattr(serializer, 'Meta'):
link.__dict__['topic'] = str(
serializer.Meta.model._meta.verbose_name_plural
).title()
elif hasattr(self.view, 'model'):
link.__dict__['topic'] = str(self.view.model._meta.verbose_name_plural).title()
else:
warnings.warn('Could not determine a Swagger tag for path {}'.format(path))
return link
def get_description(self, path, method):
setattr(self.view.request, 'swagger_method', method)
description = super(AutoSchema, self).get_description(path, method)
return description
class SwaggerSchemaView(APIView):
_ignore_model_permissions = True
exclude_from_schema = True
permission_classes = [AllowAny]
renderer_classes = [
CoreJSONRenderer,
renderers.OpenAPIRenderer,
renderers.SwaggerUIRenderer
]
def get(self, request):
generator = SuperUserSchemaGenerator(
title='Ansible Tower API',
patterns=None,
urlconf=None
)
schema = generator.get_schema(request=request)
# python core-api doesn't support the deprecation yet, so track it
# ourselves and return it in a response header
_deprecated = []
# By default, DRF OpenAPI serialization places all endpoints in
# a single node based on their root path (/api). Instead, we want to
# group them by topic/tag so that they're categorized in the rendered
# output
document = schema._data.pop('api')
for path, node in document.items():
if isinstance(node, Object):
for action in node.values():
topic = getattr(action, 'topic', None)
if topic:
schema._data.setdefault(topic, Object())
schema._data[topic]._data[path] = node
if isinstance(action, Object):
for link in action.links.values():
if link.deprecated:
_deprecated.append(link.url)
elif isinstance(node, Link):
topic = getattr(node, 'topic', None)
if topic:
schema._data.setdefault(topic, Object())
schema._data[topic]._data[path] = node
if not schema:
raise exceptions.ValidationError(
'The schema generator did not return a schema Document'
)
return Response(
schema,
headers={'X-Deprecated-Paths': json.dumps(_deprecated)}
)