How to Use mitmproxy in Python with Upstream Proxy and Password

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What will you learn?

In this tutorial, you will learn how to configure and utilize mitmproxy in Python to connect through an upstream proxy that requires a password. This guide will equip you with the skills to effectively work with network requests in Python while handling password-protected upstream proxies.

Introduction to the Problem and Solution

When dealing with network requests in Python, intercepting and modifying traffic is often necessary. However, situations may arise where accessing an upstream proxy protected by a password becomes a requirement. This tutorial delves into configuring mitmproxy in Python to tackle such scenarios efficiently.

To address this challenge, we will harness the capabilities of mitmproxy alongside additional configurations tailored for managing upstream proxies. By meticulously setting up the required parameters, we can establish a connection from our Python code through a password-protected upstream proxy using mitmproxy.

Code

# Import necessary modules
from mitmproxy import options
from mitmproxy.tools.main import process_options

# Setup options for mitmdump (replace 'YOUR_PROXY_HOST', 'YOUR_PROXY_PORT', 'USERNAME', and 'PASSWORD' accordingly)
myaddon = AddonManager()
opts = options.Options(
    listen_host='127.0.0.1',
    listen_port=8080,
    upstream_server=('YOUR_PROXY_HOST', YOUR_PROXY_PORT),
    http2=True,
)

# Set up authentication for the upstream proxy
opts.upstream_auth = ("USERNAME", "PASSWORD")

# Start the proxy server
process_options(parser, opts)

# Copyright PHD

(Replace placeholders with actual values)

Explanation

The provided code snippet functions as follows: – Import essential modules required for configuring mitmproxy. – Define crucial options such as listening host and port. – Specify details of the upstream proxy server. – Provide authentication credentials for connecting through the password-protected proxy. – Initiate the proxy server using these configured options.

This setup enables seamless utilization of mitmproxy within a Python script while ensuring connectivity through an authenticated upstream proxy.

    How do I install mitmproxy in Python?

    You can install mitmproxy via pip: 

    pip install mitmproxy

# Copyright PHD

    Can I run multiple instances of mitmdump simultaneously?

    Yes, you can run multiple instances of mitmdump, each on different ports or interfaces.

    Is it possible to modify requests/responses passing through mitmdump?

    Absolutely! You can intercept and modify HTTP requests/responses using custom scripts or addons within mitmdump.

    How do I view HTTPS traffic with mitmdump?

    By default, mitmdump generates SSL certificates that need to be trusted on your device/browser to view HTTPS traffic.

    Can I use filters in mitmdump?

    Certainly! Various filters based on URLs or content types can be applied when running mitmdump.

    Conclusion

    In conclusion, mastering the configuration of mitmproxy in Python opens up new possibilities for efficiently managing network requests while navigating password-protected upstream proxies. Dive deeper into official documentation at MitMDump Documentation for further exploration.

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