Proxies para automatización de navegadores: Playwright, Puppeteer y Selenium

# pip install playwright && playwright install chromium
import uuid
from playwright.sync_api import sync_playwright

SERVER = "http://gw.namelessproxy.com:7777"   # HTTP port: browsers
USERNAME, PASSWORD = "USERNAME", "PASSWORD"

def proxy_for(country, city, ttl=30):
    """One sticky session per browser context."""
    session = uuid.uuid4().hex[:10]
    return {
        "server": SERVER,
        "username": f"{USERNAME}-country-{country}-city-{city}-session-{session}-ttl-{ttl}",
        "password": PASSWORD,
    }

with sync_playwright() as p:
    # Placeholder launch proxy: some Chromium builds need one before contexts
    # can set their own. It is never used when every context sets a proxy.
    browser = p.chromium.launch(proxy={"server": "http://per-context"})
    for country, city, tz in [("ae", "dubai", "Asia/Dubai"), ("sa", "riyadh", "Asia/Riyadh")]:
        context = browser.new_context(proxy=proxy_for(country, city), locale="ar", timezone_id=tz)
        page = context.new_page()
        page.goto("https://api.ipify.org")
        print(country, page.inner_text("body"))
        context.close()
    browser.close()

// npm i playwright && npx playwright install chromium
const { chromium } = require('playwright');
const crypto = require('crypto');

const server = 'http://gw.namelessproxy.com:7777';
const proxyFor = (country, city, ttl = 30) => ({
  server,
  username: `USERNAME-country-${country}-city-${city}-session-${crypto.randomBytes(5).toString('hex')}-ttl-${ttl}`,
  password: 'PASSWORD',
});

(async () => {
  const browser = await chromium.launch({ proxy: { server: 'http://per-context' } });
  const context = await browser.newContext({ proxy: proxyFor('eg', 'cairo') });
  const page = await context.newPage();
  await page.goto('https://api.ipify.org');
  console.log(await page.textContent('body'));
  await browser.close();
})();

// npm i puppeteer
const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch({
    args: ['--proxy-server=http://gw.namelessproxy.com:7777'],
  });
  const page = await browser.newPage();
  // Chrome ignores credentials in --proxy-server, so answer the 407 challenge per page
  await page.authenticate({
    username: 'USERNAME-country-ng-city-lagos-session-x7k2p9-ttl-30',
    password: 'PASSWORD',
  });
  await page.goto('https://api.ipify.org');
  console.log(await page.evaluate(() => document.body.innerText));
  await browser.close();
})();

pip install pproxy selenium

# Local forwarder: no auth on 127.0.0.1:8899, adds your credentials upstream (#user:pass)
pproxy -l http://127.0.0.1:8899 \
  -r "http://gw.namelessproxy.com:7777#USERNAME-country-ke-city-nairobi-session-k3m9q1-ttl-30:PASSWORD"

# Selenium 4.6+ downloads the matching chromedriver itself (Selenium Manager)
from selenium import webdriver
from selenium.webdriver.common.by import By

options = webdriver.ChromeOptions()
options.add_argument("--proxy-server=http://127.0.0.1:8899")   # the local forwarder
driver = webdriver.Chrome(options=options)
try:
    driver.get("https://api.ipify.org")
    print(driver.find_element(By.TAG_NAME, "body").text)
finally:
    driver.quit()