Add an opt-out header for HTTP throttling. Never throttle for localhost.

net/tools/backoff_server/backoff_server.py

Index: net/tools/backoff_server/backoff_server.py
diff --git a/net/tools/backoff_server/backoff_server.py b/net/tools/backoff_server/backoff_server.py
new file mode 100644
index 0000000000000000000000000000000000000000..9db0c0cc247d0ecd6f9ac87d5cf42f9db04b6bab
--- /dev/null
+++ b/net/tools/backoff_server/backoff_server.py
@@ -0,0 +1,46 @@
+#!/usr/bin/python2.4
+# Copyright (c) 2011 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""This is a simple HTTP server for manually testing exponential
+back-off functionality in Chrome.
+"""
+
+
+import BaseHTTPServer
+import sys
+import urlparse
+
+
+class RequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
+  keep_running = True
+
+  def do_GET(self):
+    if self.path == '/quitquitquit':
+      self.send_response(200)
+      self.send_header('Content-Type', 'text/plain')
+      self.end_headers()
+      self.wfile.write('QUITTING')
+      RequestHandler.keep_running = False
+      return
+
+    params = urlparse.parse_qs(urlparse.urlparse(self.path).query)
+
+    if not params or not 'code' in params or params['code'][0] == '200':
+      self.send_response(200)
+      self.send_header('Content-Type', 'text/plain')
+      self.end_headers()
+      self.wfile.write('OK')
+    else:
+      self.send_error(int(params['code'][0]))
+
+
+def main():
+  httpd = BaseHTTPServer.HTTPServer(('', int(sys.argv[1])), RequestHandler)

[yzshen1, 2011/03/18 22:49:51]

It is good if some more comments are added for this file: command line
parameters, special path and query parameters, etc.

[Jói, 2011/03/23 23:38:24]

Done.

+  while RequestHandler.keep_running:
+    httpd.handle_request()
+
+
+if __name__ == '__main__':
+  main()