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Unified Diff: appengine/monorail/sitewide/custom_404.py

Issue 1868553004: Open Source Monorail (Closed) Base URL: https://chromium.googlesource.com/infra/infra.git@master
Patch Set: Rebase Created 4 years, 8 months ago
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Index: appengine/monorail/sitewide/custom_404.py
diff --git a/appengine/monorail/sitewide/custom_404.py b/appengine/monorail/sitewide/custom_404.py
new file mode 100644
index 0000000000000000000000000000000000000000..29b1a3fbe67641ece15a7f4360038b1a55343dda
--- /dev/null
+++ b/appengine/monorail/sitewide/custom_404.py
@@ -0,0 +1,36 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is govered by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+"""Page class for generating somewhat informative project-page 404s.
+
+This page class produces a mostly-empty project subpage, which helps
+users find what they're looking for, rather than telling them
+"404. That's an error. That's all we know." which is maddeningly not
+helpful when we already have a project pb loaded.
+"""
+
+from framework import monorailrequest
+from framework import servlet
+
+
+class ErrorPage(servlet.Servlet):
+ """Page class for generating somewhat informative project-page 404s.
+
+ This page class produces a mostly-empty project subpage, which helps
+ users find what they're looking for, rather than telling them
+ "404. That's an error. That's all we know." which is maddeningly not
+ helpful when we already have a project pb loaded.
+ """
+
+ _PAGE_TEMPLATE = 'sitewide/project-404-page.ezt'
+
+ def get(self, **kwargs):
+ servlet.Servlet.get(self, **kwargs)
+
+ def GatherPageData(self, mr):
+ """Build up a dictionary of data values to use when rendering the page."""
+ if not mr.project_name:
+ raise monorailrequest.InputException('No project specified')
+ return {}
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