HTTP Proxy

This is an HTTP proxy that distributes requests over a number of workers. These workers are also stored within this repository, and are run with the rpc_server.py command. See below for info. This is achieved by sending the HTTP requests to a RabbitMQ queue, where it is picked up by a number of workers.

Architecture Overview

The solution is comprised of two main components, the worker and the proxy. Here are the main files to look at to get a quick overview:

• Proxy Server implementation: This file contains the proxy server. It offers access in a programmatic way as well as through a HTTP proxy to the RabbitMQ queue.
• Worker implementation: A first pass implementation of the worker thread in Python.
• Database Models: Database architecture for the solution.
• Serialization Models: Handles serialization and unserialization of various objects for RabbitMQ communication.

Cloning.

This module uses git submodules to share code with other repositories. In order to clone those as well use the following command:

git clone --recurse-submodules <URL>

Installation & Python dependencies.

We use poetry for managing dependencies. Please see unicornbottle-dev/README.md for more info.

To run:

sudo -u httpproxy mitmdump --set confdir=/opt/mitmdump --no-http2 -s rpc_addon.py

I disable HTTP2 because I don't need that kind of functionality and it could be error prone if implemented incorrectly. Most people wouldn't expect an HTTP proxy to support HTTP2 in any case so it shoud work OK. See ./start-mitmproxy.sh for more details.

To run the worker thread, run as follows:

sudo -u httpproxy python3 rpc_server.py 1337 # 1337 is a log file number.

Run unit tests:

pytest

To run an individual test:

pytest -s -k "test_db_write"