Python Proxy Server: Homemade HTTP Proxy Tutorial

Hands-on with Python to build a proxy staging area

The old iron everyone engaged in data capture attention! Today we do not pull the theory of those imaginary head, directly on the hard stuff to teach you to use Python to make a proxy server. This thing is especially suitable for the need for a large number of IP switching scenarios, such as grabbing limited sneakers, batch registration account these need to "disguise" operation.

import socket
from threading import Thread

def handle_client(client_socket).
     This is the heart of request handling
    request = client_socket.recv(1024)
     Forward the request to the target server
    remote_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    remote_socket.connect((('www.target.com', 80)))
    remote_socket.send(request)

     Pass the response back to the client
    response = remote_socket.recv(4096)
    client_socket.send(response)

    client_socket.close()
    remote_socket.close()

 Start the service listener
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind((('0.0.0.0', 8888)))
server.listen(5)

server.listen(5) while True: client, addr = server.accept
    client, addr = server.accept()
    print(f "Request received from {addr}")
    Thread(target=handle_client, args=(client,)).start()

The basic version above works, but it's as dangerous as running naked on the internet. We need to put a bulletproof vest on it:

Must-have three-piece set:
1. Request filtering (don't forward illegal requests for others)
2. Connection encryption (to prevent data prying)
3. Intelligent routing (different routes for different requests)

Giving proxy servers IP wings

Standalone IP easily blocked? It's time to bring out ouripipgo proxy serviceup. He has a million residential IP pools, especially for scenarios that require frequent switching.

import requests

def get_proxy().
     Get dynamic proxy from ipipgo
    api_url = "https://api.ipipgo.com/getproxy"
    params = {
        "key": "Your API key",
        "protocol": "http",
        "count": 1
    }
    resp = requests.get(api_url, params=params)
    return resp.json()['data'][0]

 Use this when forwarding requests
proxy = get_proxy()
remote_socket.connect((proxy['ip'], proxy['port']))

Remember to add exception handling in the code, in case an IP hangs to automatically switch. ipipgo's API return speed is quite fast, the measured average response in 200ms or so, much more stable than many free proxies.

A practical guide to avoiding the pit

White Answer Zone

Q: Is it illegal to build my own agent?
A: A purely technical implementation is not illegal, but it depends on the specific use scenario. Just like a kitchen knife can cut vegetables or hurt people, it is important to use it in the right place.

Q: How do ipipgo's agents charge?
A: His family has pay-per-volume and monthly packages, and new users send 5G traffic experience. It is recommended to try before deciding, which is more reliable than those runaway pheasant agents.

Q: Why does my agent often disconnect?
A: Check two points: 1. whether the local network is stable 2. whether the proxy package is selected long-lasting version. If it is a short-lived proxy, it will be replaced automatically in 15 minutes by default.

And finally.gold advice: Don't save money on proxies when you're a crawler! With ipipgo's high-quality proxies, you can save enough money to buy ten years of service. Next time, I will teach you how to use this proxy server to play with flowers, such as automatic switching country nodes, simulating real people to operate these tawdry operations.