Web Proxy to Simulate Network Problems

I need a way to simulate connectivity problems in an automated test suite, on Linux, and preferably from Python. Some sort of proxy that I can put in front of the web server that can hang or drop connections after one trigger or another (after X bytes transferred, etc) would be perfect.

It doesn't seem too hard to build, but I'd rather grab something pre-existing,开发者_运维百科 if anyone has any good recommendations.

when i needed one, i found that building it yourself is the best thing.. start by raising a threaded server in python http://docs.python.org/dev/library/socketserver.html (you don't have to use the class itself). and it's very simple: in the new connection thread, you create a new socket and connects it to the real server. then, you put both of them in a list and sends it to select.select (import select). then, when socket x receive data - sends it to y. when socket y receives data sends it to x. (don't forget to close the socket when you receive empty string).

now you can do whatever you want..

if you need anything, i'm here..