mitmproxy

Mitmproxy implemented with golang. Intercept HTTP & HTTPS requests and responses and modify them.

Features

• Intercept HTTP & HTTPS requests and responses and modify them on the fly
• SSL/TLS certificates for interception are generated on the fly
• Certificates logic compatible with mitmproxy, saved at ~/.mitmproxy. If you used mitmproxy before and installed certificates, then you can use this go-mitmproxy directly
• Addon mechanism, you can add your functions easily, refer to examples
• Performance advantages
  • Golang's inherent performance advantages
  • Forwarding and parsing HTTPS traffic in process memory without inter-process communication such as tcp port or unix socket
  • Use LRU cache when generating certificates of different domain names to avoid double counting
• Support Wireshark to analyze traffic through the environment variable SSLKEYLOGFILE
• Support streaming when uploading/downloading large files
• Web interface

Install

go install github.com/kardianos/mitmproxy/cmd/go-mitmproxy@latest

Usage

Startup

go-mitmproxy

After startup, the HTTP proxy address defaults to port 9080, and the web interface defaults to port 9081.

After the first startup, the SSL/TLS certificate will be automatically generated at ~/.mitmproxy/mitmproxy-ca-cert.pem. You can refer to this link to install: About Certificates.

Help

Usage of go-mitmproxy:
  -addr string
    	proxy listen addr (default ":9080")
  -cert_path string
    	path of generate cert files
  -debug int
    	debug mode: 1 - print debug log, 2 - show debug from
  -dump string
    	dump filename
  -dump_level int
    	dump level: 0 - header, 1 - header + body
  -mapper_dir string
    	mapper files dirpath
  -ssl_insecure
    	not verify upstream server SSL/TLS certificates.
  -version
    	show version
  -web_addr string
    	web interface listen addr (default ":9081")

Usage as package

Refer to cmd/mitmproxy/main.go, you can add your own addon by call AddAddon method.

For more examples, please refer to examples

Web interface

Has a web interface to view requests and responses.

TODO

• Support http2
• Support parse websocket

License

MIT License