随机生成浏览器头User-Agent

szszszzhs

已于 2023-05-06 15:57:25 修改

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分类专栏：爬虫文章标签： firefox safari chrome

于 2023-03-03 18:26:05 首次发布

本文链接：https://blog.youkuaiyun.com/szszszzhs/article/details/129325294

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该代码定义了一个函数random_ua，用于生成模拟不同浏览器和操作系统的随机User-Agent字符串。它随机选择浏览器名称，如Mozilla、Opera、Chrome等，然后根据选定的浏览器选择对应的操作系统和版本信息。

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import random
def random_ua():
    # 随机选择浏览器名称
    browsers = ['Mozilla/5.0', 'Mozilla/4.0', 'Opera/9.80', 'Chrome/41.0.2228.0', 'Safari/537.36', 'Firefox/35.0']
    browser = random.choice(browsers)
    
    # 随机选择操作系统
    systems = ['Windows NT 10.0; Win64; x64', 'Windows NT 6.3; WOW64', 'Windows NT 6.1; WOW64', 'Macintosh; Intel Mac OS X 10_10_5', 'X11; Ubuntu; Linux x86_64']
    system = random.choice(systems)
    
    # 随机选择浏览器版本
    if browser == 'Mozilla/5.0':
        versions = ['(Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0', '(Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36', '(Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36']
        version = random.choice(versions)
    elif browser == 'Mozilla/4.0':
        versions = ['(compatible; MSIE 7.0; Windows NT 6.0; WOW64; Trident/5.0)', '(Windows; U; Windows NT 6.0; en-US; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8', '(Windows NT 5.1; rv:40.0) Gecko/20100101 Firefox/40.0']
        version = random.choice(versions)
    elif browser == 'Opera/9.80':
        versions = ['(Windows NT 6.1; WOW64) Presto/2.12.388 Version/12.17', '(Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.125 Safari/537.36 OPR/23.0.1522.77', '(Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36 OPR/28.0.1750.40']
        version = random.choice(versions)
    else:
        versions = ['(KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36', '(KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36', '(KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36']
        version = random.choice(versions)
    
    user_agent = f'{browser} ({system}) {version}'
    return user_agent