mitmproxy - an SSL-capable man-in-the-middle proxy

mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP. It provides a console interface that allows traffic flows to be inspected and edited on the fly.

mitmdump is the command-line version of mitmproxy, with the same functionality but without the user interface. Think tcpdump for HTTP.

• Features 
• Intercept HTTP requests and responses and modify them on the fly. 
• Save complete HTTP conversations for later replay and analysis. 
• Replay the client-side of an HTTP conversations. 
• Replay HTTP responses of a previously recorded server. 
• Reverse proxy mode to forward traffic to a specified server. 
• Make scripted changes to HTTP traffic using Python. 
• SSL certificates for interception are generated on the fly.

Install

The easiest way to install the latest release of mitmproxy is to use pip: pip install mitmproxy

For further instructions, see the Installation section of the documentation.

Download

• Current release source: mitmproxy 0.8
• Git Repository: github.com/cortesi/mitmproxy
• Source is hosted on github: 
• github.com/cortesi/mitmproxy

Requirements

• Python 2.6.x or 2.7.x. 
• PyOpenSSL 0.12 or newer. 
• pyasn1 0.1.2 or newer. 
• urwid version 0.9.8 or newer. 
• PIL version 1.1 or newer. 
• lxml version 2.3 or newer.

• The following auxiliary components may be needed if you plan to hack on mitmproxy: 
• The test suite uses the pry unit testing library. 
• Rendering the documentation requires countershape. 
• mitmproxy is tested and developed on OSX, Linux and OpenBSD. Windows is not supported at the moment. 

• You should also make sure that your console environment is set up with the following: 
• EDITOR environment variable to determine the external editor. 
• PAGER environment variable to determine the external pager. 
• Appropriate entries in your mailcap files to determine external viewers for request and response contents. 

Source -
http://mitmproxy.org/index.html
Screenshot -