抓取http://www.proxy.com.ru

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#!/usr/bin/env python
#coding:utf-8
#BLOG: blog.linuxeye.com

import urllib2
import re
import threading
import time
import MySQLdb

rawProxyList = []
checkedProxyList = []

#抓取代理网站
targets = []
for i in xrange(1,42):
        target = r"http://www.proxy.com.ru/list_%d.html" % i
        targets.append(target)

#抓取代理服务器正则
p = re.compile(r‘‘‘<tr><b><td>(\d+)</td><td>(.+?)</td><td>(\d+)</td><td>(.+?)</td><td>(.+?)</td></b></tr>‘‘‘)

#获取代理的类
class ProxyGet(threading.Thread):
    def __init__(self,target):
        threading.Thread.__init__(self)
        self.target = target

    def getProxy(self):
        print "代理服务器目标网站： " + self.target
        req = urllib2.urlopen(self.target)
        result = req.read()
        #print chardet.detect(result)
        matchs = p.findall(result)
#       print matchs
        for row in matchs:
            ip=row[1]
            port =row[2]
            addr = row[4].decode("cp936").encode("utf-8")
            proxy = [ip,port,addr]
            print proxy
            rawProxyList.append(proxy)

    def run(self):
        self.getProxy()

#检验代理的类
class ProxyCheck(threading.Thread):
    def __init__(self,proxyList):
        threading.Thread.__init__(self)
        self.proxyList = proxyList
        self.timeout = 5
        self.testUrl = "http://www.baidu.com/"
        self.testStr = "030173"

    def checkProxy(self):
        cookies = urllib2.HTTPCookieProcessor()
        for proxy in self.proxyList:
            proxyHandler = urllib2.ProxyHandler({"http" : r‘http://%s:%s‘ %(proxy[0],proxy[1])})
            #print r‘http://%s:%s‘ %(proxy[0],proxy[1])
            opener = urllib2.build_opener(cookies,proxyHandler)
            opener.addheaders = [(‘User-agent‘, ‘Mozilla/5.0 (Windows NT 6.2; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0‘)]
            #urllib2.install_opener(opener)
            t1 = time.time()

            try:
                #req = urllib2.urlopen("http://www.baidu.com", timeout=self.timeout)
                req = opener.open(self.testUrl, timeout=self.timeout)
                #print "urlopen is ok...."
                result = req.read()
                #print "read html...."
                timeused = time.time() - t1
                pos = result.find(self.testStr)
                #print "pos is %s" %pos

                if pos > 1:
                    checkedProxyList.append((proxy[0],proxy[1],proxy[2],timeused))
                    #print "ok ip: %s %s %s %s" %(proxy[0],proxy[1],proxy[2],timeused)
                else:
                     continue
            except Exception,e:
                #print e.message
                continue

    def run(self):
        self.checkProxy()

if __name__ == "__main__":
    getThreads = []
    checkThreads = []

#对每个目标网站开启一个线程负责抓取代理
for i in range(len(targets)):
    t = ProxyGet(targets[i])
    getThreads.append(t)

for i in range(len(getThreads)):
    getThreads[i].start()

for i in range(len(getThreads)):
    getThreads[i].join()

print ‘.‘*10+"总共抓取了%s个代理" %len(rawProxyList)+‘.‘*10#开启20个线程负责校验，将抓取到的代理分成20份，每个线程校验一份for i in range(20):
    t =ProxyCheck(rawProxyList[((len(rawProxyList)+19)/20)* i:((len(rawProxyList)+19)/20)*(i+1)])
    checkThreads.append(t)for i in range(len(checkThreads)):
    checkThreads[i].start()for i in range(len(checkThreads)):
    checkThreads[i].join()print‘.‘*10+"总共有%s个代理通过校验"%len(checkedProxyList)+‘.‘*10#插入数据库，表结构自己创建，四个字段ip,port,speed,addressdef db_insert(insert_list):try:
        conn =MySQLdb.connect(host="localhost", user="root", passwd="admin",db="m_common",charset=‘utf8‘)
        cursor = conn.cursor()
        cursor.execute(‘delete from proxy‘)
        cursor.execute(‘alter table proxy AUTO_INCREMENT=1‘)
        cursor.executemany("INSERT INTO proxy(ip,port,speed,address) VALUES (%s,%s,%s,%s)",insert_list)
        conn.commit()
        cursor.close()
        conn.close()exceptMySQLdb.Error,e:print"Mysql Error %d: %s"%(e.args[0], e.args[1])#代理排序持久化
proxy_ok =[]
f= open("proxy_list.txt",‘w+‘)for proxy in sorted(checkedProxyList,cmp=lambda x,y:cmp(x[3],y[3])):if proxy[3]<8:#print "checked proxy is: %s:%s\t%s\t%s" %(proxy[0],proxy[1],proxy[2],proxy[3])
        proxy_ok.append((proxy[0],proxy[1],proxy[3],proxy[2]))
        f.write("%s:%s\t%s\t%s\n"%(proxy[0],proxy[1],proxy[2],proxy[3]))
f.close()

db_insert(proxy_ok)

抓取http://www.proxy.com.ru

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原文地址：http://www.cnblogs.com/qsjmobilesec/p/4564805.html