验证代理ip是否可用

改编自：http://www.jianshu.com/p/588241a313e7

# _*_ coding:utf-8 _*_
 
import urllib2
import re
 
class TestProxy(object):
    def __init__(self, timeout):
        self.url = 'http://www.baidu.com'
        self.timeout = timeout
        self.regex = re.compile(r'baidu.com')
 
    def TestIt(self, ip, port):
        server = 'http://' + ip + ':' + port
 
        opener = urllib2.build_opener(urllib2.ProxyHandler({'http': server}))
        urllib2.install_opener(opener)
        try:
            response = urllib2.urlopen(self.url, timeout=self.timeout)
        except:
            print '%s connect failed' % server
            return False
        else:
            try:
                str = response.read()
            except:
                print '%s connect failed' % server
                return False
            print str
            if self.regex.search(str):
                print '%s connect success .......' % server
                print ip + ':' + port
        return True
 
if __name__ == '__main__':
    proxylist = [("113.118.97.119", ""), ("221.222.245.208",""), ("61.155.164.110", "")]
 
    Tp = TestProxy(5)
    for item in proxylist:
        Tp.TestIt(item[0], item[1])