Feed error messages through a cors wrapper so that people on other domains can see what's happening.

endpoints/api/build.py

@@ -2,12 +2,11 @@ import logging
 import json
 
 from flask import request
-from flask.ext.restful import abort
 
 from app import app
 from endpoints.api import (RepositoryParamResource, parse_args, query_param, nickname, resource,
                            require_repo_read, require_repo_write, validate_json_request,
-                           ApiResource, internal_only, format_date, api)
+                           ApiResource, internal_only, format_date, api, Unauthorized, NotFound)
 from endpoints.common import start_build
 from endpoints.trigger import BuildTrigger
 from data import model
@@ -111,7 +110,7 @@ class RepositoryBuildList(RepositoryParamResource):
     if associated_repository:
       if not ModifyRepositoryPermission(associated_repository.namespace,
                                         associated_repository.name):
-        abort(403)
+        raise Unauthorized()
 
     # Start the build.
     repo = model.get_repository(namespace, repository)
@@ -137,7 +136,7 @@ class RepositoryBuildStatus(RepositoryParamResource):
     """ Return the status for the builds specified by the build uuids. """
     build = model.get_repository_build(namespace, repository, build_uuid)
     if not build:
-      abort(404)
+      raise NotFound()
       
     can_write = ModifyRepositoryPermission(namespace, repository).can()
     return build_status_view(build, can_write)