userfiles: make handler optional

data/archivedlogs.py

@@ -38,7 +38,8 @@ class LogArchive(object):
 
     handler_name = 'logarchive_handlers'
 
-    log_archive = DelegateUserfiles(app, distributed_storage, location, path, handler_name)
+    log_archive = DelegateUserfiles(app, distributed_storage, location, path,
+                                    handler_name=handler_name)
 
     app.add_url_rule('/logarchive/<file_id>',
                      view_func=LogArchiveHandlers.as_view(handler_name,

data/userfiles.py

@@ -1,12 +1,14 @@
 import os
 import logging
-import magic
 import urlparse
 
 from uuid import uuid4
+from _pyio import BufferedReader
+
+import magic
+
 from flask import url_for, request, send_file, make_response, abort
 from flask.views import View
-from _pyio import BufferedReader
 from util import get_app_url
 
 
@@ -53,8 +55,12 @@ class UserfilesHandlers(View):
       return self.put(file_id)
 
 
+class MissingHandlerException(Exception):
+  pass
+
+
 class DelegateUserfiles(object):
-  def __init__(self, app, distributed_storage, location, path, handler_name):
+  def __init__(self, app, distributed_storage, location, path, handler_name=None):
     self._app = app
     self._storage = distributed_storage
     self._locations = {location}
@@ -77,6 +83,9 @@ class DelegateUserfiles(object):
     url = self._storage.get_direct_upload_url(self._locations, path, mime_type, requires_cors)
 
     if url is None:
+      if self._handler_name is None:
+        raise MissingHandlerException()
+
       with self._app.app_context() as ctx:
         ctx.url_adapter = self._build_url_adapter()
         file_relative_url = url_for(self._handler_name, file_id=file_id)
@@ -99,6 +108,9 @@ class DelegateUserfiles(object):
     url = self._storage.get_direct_download_url(self._locations, path, expires_in, requires_cors)
 
     if url is None:
+      if self._handler_name is None:
+        raise MissingHandlerException()
+
       with self._app.app_context() as ctx:
         ctx.url_adapter = self._build_url_adapter()
         file_relative_url = url_for(self._handler_name, file_id=file_id)
@@ -125,7 +137,8 @@ class Userfiles(object):
 
     handler_name = 'userfiles_handlers'
 
-    userfiles = DelegateUserfiles(app, distributed_storage, location, path, handler_name)
+    userfiles = DelegateUserfiles(app, distributed_storage, location, path,
+                                  handler_name=handler_name)
 
     app.add_url_rule('/userfiles/<file_id>',
                      view_func=UserfilesHandlers.as_view(handler_name,

workers/logrotateworker.py

@@ -36,8 +36,9 @@ class LogRotateWorker(Worker):
 
   def _archive_logs(self):
     logger.debug('Attempting to rotate log entries')
-    log_archive = DelegateUserfiles(app, storage, SAVE_LOCATION, SAVE_PATH,
+
-                                    'action_log_archive_handlers')
+    log_archive = DelegateUserfiles(app, storage, SAVE_LOCATION, SAVE_PATH)
+
     while True:
       with GlobalLock('ACTION_LOG_ROTATION') as gl:
         if not gl: