HTTP/HTTPS proxy in a single python script
- easy to customize
- require no external modules
- support both of IPv4 and IPv6
- support HTTP/1.1 Persistent Connection
- support dynamic certificate generation for HTTPS intercept
This script works on Python 2.7. You need to install OpenSSL to intercept HTTPS connections.
Just run as a script:
$ python proxy2.py
Above command runs the proxy on tcp/8080. To use another port, specify the port number as the first argument.
$ python proxy2.py 3128
To intercept HTTPS connections, generate private keys and a private CA certificate:
$ ./setup_https_intercept.sh
Through the proxy, you can access http://proxy2.test/ and install the CA certificate in the browsers.
You can easily customize the proxy and modify the requests/responses or save something to the files. The ProxyRequestHandler class has 3 methods to customize:
- request_handler: called before accessing the upstream server
- response_handler: called before responding to the client
- save_handler: called after responding to the client with the exclusive lock, so you can safely write out to the terminal or the file system
By default, only save_handler is implemented which outputs HTTP(S) headers and some useful data to the standard output.