机械化随机用户代理

Question

我试图让Mechanize每次启动URL时都使用随机的User-Agent。 有人可以指出我要这样做的正确方向吗？ -我到处搜索，找不到参考。

谢谢！

Answer 1

该链接为您提供了样本用户代理参考。 演示它的示例代码：

from random import choice
user_agents = ['Mozilla/5.0 (X11; U; Linux; i686; en-US; rv:1.6) Gecko Debian/1.6-7','Konqueror/3.0-rc4; (Konqueror/3.0-rc4; i686 Linux;;datecode)','Opera/9.52 (X11; Linux i686; U; en)']
random_user_agent = choice(user_agents)

您可以从上面的链接中将尽可能多的user_agents包含到变量user_agents中。

现在，只需在初始化过程中在其中添加标头，即可将random_user_agent放入Mechanize中。

Answer 2

我在执行网络搜寻器时遇到了相同的问题，这是我使用的解决方案：

class URLOpener():      
    def opener(self,user_agent):
        cj=cookielib.CookieJar()
        #Process Hadlers
        opener=urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
        opener.addheaders=[
                        ('User-Agent', user_agent),
                        ('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8'),
                        ('Accept-Language', 'en-gb,en;q=0.5'),
                        ('Accept-Charset', 'ISO-8859-1,utf-8;q=0.7,*;q=0.7'),
                        ('Keep-Alive', '115'),
                        ('Connection', 'keep-alive'),
                        ('Cache-Control', 'max-age=0'),
                    ]
        return opener

    #Openers with different User-Agents
    def opener_list(self,f_path):
        #f_path is a path to the file that contains browsers
        f=open(f_path, 'r+')
        count=0
        user_agent_list=list()
        for line in f.xreadlines():
            count+=1
            user_agent_list.append(line[:-1])
        openers=[self.opener(user_agent) for user_agent in user_agent_list]
        return openers

我创建的文件也与此类似：

Mozilla/5.0 (Linux; U; Android 4.0.3; ko-kr; LG-L160L Build/IML74K) AppleWebkit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 4.0.3; de-ch; HTC Sensation Build/IML74K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30
Mozilla/5.0 (Linux; U; Android 2.3; en-us) AppleWebKit/999+ (KHTML, like Gecko) Safari/999.9
Mozilla/5.0 (Linux; U; Android 2.3.5; zh-cn; HTC_IncredibleS_S710e Build/GRJ90) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
Mozilla/5.0 (Linux; U; Android 2.3.5; en-us; HTC Vision Build/GRI40) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
Mozilla/5.0 (Linux; U; Android 2.3.4; fr-fr; HTC Desire Build/GRJ22) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
Mozilla/5.0 (Linux; U; Android 2.3.4; en-us; T-Mobile myTouch 3G Slide Build/GRI40) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
Mozilla/5.0 (Linux; U; Android 2.3.3; zh-tw; HTC_Pyramid Build/GRI40) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
Mozilla/5.0 (Linux; U; Android 2.3.3; zh-tw; HTC_Pyramid Build/GRI40) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari
Mozilla/5.0 (Linux; U; Android 2.3.3; zh-tw; HTC Pyramid Build/GRI40) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1