Update pip and setuptools in requirements txt

Versions selected to be pre-19 pip
due to unresolved issues with the build systems

Upgrade everything, party on

document new process

rotate license files

fix Swagger schema generation target

Remove --ignore-installed flag

awx/__init__.py

@@ -24,31 +24,18 @@ except ImportError: # pragma: no cover
 import hashlib
 
 try:
-    import django
-    from django.db.backends.base import schema
-    from django.db.backends.utils import names_digest
+    import django  # noqa: F401
     HAS_DJANGO = True
 except ImportError:
     HAS_DJANGO = False
+else:
+    from django.db.backends.base import schema
+    from django.db.backends.utils import names_digest
 
 
 if HAS_DJANGO is True:
-    # This line exists to make sure we don't regress on FIPS support if we
-    # upgrade Django; if you're upgrading Django and see this error,
-    # update the version check below, and confirm that FIPS still works.
-    # If operating in a FIPS environment, `hashlib.md5()` will raise a `ValueError`,
-    # but will support the `usedforsecurity` keyword on RHEL and Centos systems.
-
-    # Keep an eye on https://code.djangoproject.com/ticket/28401
-    target_version = '2.2.4'
-    if django.__version__ != target_version:
-        raise RuntimeError(
-            "Django version other than {target} detected: {current}. "
-            "Overriding `names_digest` is known to work for Django {target} "
-            "and may not work in other Django versions.".format(target=target_version,
-                                                                current=django.__version__)
-        )
 
+    # See upgrade blocker note in requirements/README.md
     try:
         names_digest('foo', 'bar', 'baz', length=8)
     except ValueError:

awx/settings/defaults.py

@@ -310,6 +310,9 @@ REST_FRAMEWORK = {
     'VIEW_DESCRIPTION_FUNCTION': 'awx.api.generics.get_view_description',
     'NON_FIELD_ERRORS_KEY': '__all__',
     'DEFAULT_VERSION': 'v2',
+    # For swagger schema generation
+    # see https://github.com/encode/django-rest-framework/pull/6532
+    'DEFAULT_SCHEMA_CLASS': 'rest_framework.schemas.AutoSchema',
     #'URL_FORMAT_OVERRIDE': None,
 }
 

awx/sso/middleware.py

@@ -20,17 +20,7 @@ class SocialAuthMiddleware(SocialAuthExceptionMiddleware):
 
     def process_request(self, request):
         if request.path.startswith('/sso'):
-            # django-social keeps a list of backends in memory that it gathers
-            # based on the value of settings.AUTHENTICATION_BACKENDS *at import
-            # time*:
-            # https://github.com/python-social-auth/social-app-django/blob/c1e2795b00b753d58a81fa6a0261d8dae1d9c73d/social_django/utils.py#L13
-            #
-            # our settings.AUTHENTICATION_BACKENDS can *change*
-            # dynamically as Tower settings are changed (i.e., if somebody
-            # configures Github OAuth2 integration), so we need to
-            # _overwrite_ this in-memory value at the top of every request so
-            # that we have the latest version
-            # see: https://github.com/ansible/tower/issues/1979
+            # See upgrade blocker note in requirements/README.md
             utils.BACKENDS = settings.AUTHENTICATION_BACKENDS
         token_key = request.COOKIES.get('token', '')
         token_key = urllib.parse.quote(urllib.parse.unquote(token_key).strip('"'))

awx/wsgi.py

@@ -34,11 +34,6 @@ if MODE == 'production':
         logger.error("Missing or incorrect metadata for Tower version.  Ensure Tower was installed using the setup playbook.")
         raise Exception("Missing or incorrect metadata for Tower version.  Ensure Tower was installed using the setup playbook.")
 
-if social_django.__version__ != '2.1.0':
-    raise RuntimeError("social_django version other than 2.1.0 detected {}. \
-            Confirm that per-request social_django.utils.BACKENDS override \
-            still works".format(social_django.__version__))
-
 
 # Return the default Django WSGI application.
 application = get_wsgi_application()