Move parse_repository_name into decorators

endpoints/decorators.py

@@ -4,8 +4,35 @@ from functools import wraps
 from flask import abort
 
 import features
+
+from app import app
 from auth.auth_context import (
   get_validated_oauth_token, get_authenticated_user, get_validated_token, get_grant_context)
+from util.names import parse_namespace_repository
+
+
+def parse_repository_name(include_tag=False,
+                          ns_kwarg_name='namespace_name',
+                          repo_kwarg_name='repo_name',
+                          tag_kwarg_name='tag_name',
+                          incoming_repo_kwarg='repository'):
+  """ Decorator which parses the repository name found in the incoming_repo_kwarg argument,
+      and applies its pieces to the decorated function.
+  """
+  def inner(func):
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+      repo_name_components = parse_namespace_repository(kwargs[incoming_repo_kwarg],
+                                                        app.config['LIBRARY_NAMESPACE'],
+                                                        include_tag=include_tag)
+      del kwargs[incoming_repo_kwarg]
+      kwargs[ns_kwarg_name] = repo_name_components[0]
+      kwargs[repo_kwarg_name] = repo_name_components[1]
+      if include_tag:
+        kwargs[tag_kwarg_name] = repo_name_components[2]
+      return func(*args, **kwargs)
+    return wrapper
+  return inner
 
 
 def anon_allowed(func):