Python中多浏览器实例项目的隔离策略与实现

import asyncio
import os
from pyppeteer import launch

async def inject_js(browser_id, url, script):
    user_data_dir = f"./chrome_profiles/profile_{browser_id}"  # 每个实例独立的用户数据目录
    os.makedirs(user_data_dir, exist_ok=True)
    
    browser = await launch(
        headless=False,
        args=[
            '--no-sandbox',
            '--disable-cache',
            f'--user-data-dir={user_data_dir}',  # 使用独立的用户数据目录
        ]
    )
    
    page = await browser.newPage()
    await page.goto(url)
    
    # 执行 JavaScript 代码并清理本地存储
    await page.evaluate(f"""
        {script}
        localStorage.clear();
        sessionStorage.clear();
    """)

    print(f"[{browser_id}] 执行完毕")
    await browser.close()

async def main():
    url = "https://www.example.com"
    script = "document.body.style.backgroundColor = 'green';"
    
    tasks = [inject_js(i, url, script) for i in range(5)]  # 5 个浏览器实例
    await asyncio.gather(*tasks)

asyncio.run(main())

from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.chrome.options import Options
import multiprocessing

def inject_js_selenium(browser_id, url, script):
    print(f"[{browser_id}] 启动浏览器...")

    chrome_options = Options()
    chrome_options.add_argument("--incognito")  # 无痕模式
    chrome_options.add_argument("--disable-cache")
    chrome_options.add_argument("--disable-application-cache")
    
    driver = webdriver.Chrome(service=Service("/path/to/chromedriver"), options=chrome_options)
    driver.get(url)
    
    print(f"[{browser_id}] 注入 JavaScript 代码...")
    driver.execute_script(script)

    # 清除 Cookie，确保会话隔离
    driver.delete_all_cookies()
    
    print(f"[{browser_id}] 注入完成")
    driver.quit()

if __name__ == "__main__":
    url = "https://www.example.com"
    script = "document.body.style.backgroundColor = 'blue';"
    
    processes = []
    for i in range(5):  # 5个浏览器实例
        p = multiprocessing.Process(target=inject_js_selenium, args=(i, url, script))
        p.start()
        processes.append(p)
    
    for p in processes:
        p.join()

async def clear_storage(page):
    await page.evaluate("""
        indexedDB.databases().then(dbs => {
            for (let db of dbs) {
                indexedDB.deleteDatabase(db.name);
            }
        });
        localStorage.clear();
        sessionStorage.clear();
    """)
    print("存储清理完毕")

async def inject_js(browser_id, url, script):
    browser = await launch(headless=False, args=['--no-sandbox'])
    page = await browser.newPage()
    await page.goto(url)
    
    # 执行 JavaScript 代码并清理存储
    await clear_storage(page)
    await page.evaluate(script)

    print(f"[{browser_id}] 执行完毕")
    await browser.close()

async def main():
    url = "https://www.example.com"
    script = "document.body.style.backgroundColor = 'yellow';"
    
    tasks = [inject_js(i, url, script) for i in range(5)]
    await asyncio.gather(*tasks)

asyncio.run(main())

import multiprocessing
from selenium import webdriver
from selenium.webdriver.chrome.options import Options

def start_browser(instance_id):
    options = Options()
    options.add_argument("--headless")  
    options.add_argument("--incognito")  # 开启无痕模式
    options.add_argument(f"--user-data-dir=./chrome_profile_{instance_id}")  # 独立数据目录

    driver = webdriver.Chrome(options=options)
    driver.get("https://www.example.com")
    
    # 注入 JavaScript 代码
    driver.execute_script("document.body.style.backgroundColor = 'pink';")
    
    driver.quit()

if __name__ == "__main__":
    num_instances = 5  # 启动5个实例
    processes = []

    for i in range(num_instances):
        p = multiprocessing.Process(target=start_browser, args=(i,))
        p.start()
        processes.append(p)

    for p in processes:
        p.join()