Codebeispiel für den stapelweisen Erhalt und die Überprüfung eines HTTP-Proxys über Python

from bs4 import BeautifulSoup
import urllib2
of = open('proxy.txt' , 'w')
for page in range(1, 160):
  html_doc = urllib2.urlopen('http://www.xici.net.co/nn/' + str(page) ).read()
  soup = BeautifulSoup(html_doc)
  trs = soup.find('table', id='ip_list').find_all('tr')
  for tr in trs[1:]:
    tds = tr.find_all('td')
    ip = tds[1].text.strip()
    port = tds[2].text.strip()
    protocol = tds[5].text.strip()
    if protocol == 'HTTP' or protocol == 'HTTPS':
      of.write('%s=%s:%s\n' % (protocol, ip, port) )
      print '%s=%s:%s' % (protocol, ip, port)
of.close()

#encoding=gbk
import httplib
import time
import urllib
import threading
inFile = open('proxy.txt', 'r')
outFile = open('available.txt', 'w')
lock = threading.Lock()
def test():
  while True:
    lock.acquire()
    line = inFile.readline().strip()
    lock.release()
    if len(line) == 0: break
    protocol, proxy = line.split('=')
    headers = {'Content-Type': 'application/x-www-form-urlencoded',
      'Cookie': ''}
    try:
      conn = httplib.HTTPConnection(proxy, timeout=3.0)
      conn.request(method='POST', url='http://e.meituan.com/m/account/login', body='login=ttttttttttttttttttttttttttttttttttttt&password=bb&remember_username=1&auto_login=1', headers=headers )
      res = conn.getresponse()
      ret_headers = str( res.getheaders() ) 
      html_doc = res.read().decode('utf-8')
      print html_doc.encode('gbk')
      if ret_headers.find(u'/m/account/login/') > 0:
        lock.acquire()
        print 'add proxy', proxy
        outFile.write(proxy + '\n')
        lock.release()
      else:
        print '.',
    except Exception, e:
      print e

all_thread = []
for i in range(50):
  t = threading.Thread(target=test)
  all_thread.append(t)
  t.start()
  
for t in all_thread:
  t.join()

inFile.close()
outFile.close()