python爬取cnvd漏洞库信息的实例

# -*- coding: utf-8 -*-
import requests
import re
import xlwt
import time
from bs4 import BeautifulSoup
headers = {
 'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
 'Accept-Encoding': 'gzip, deflate, sdch',
 'Accept-Language': 'zh-CN,zh;q=0.8',
 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36'
}
cookies={'__jsluid':'8d3f4c75f437ca82cdfad85c0f4f7c25'}
myfile=xlwt.Workbook()
wtable=myfile.add_sheet(u"信息",cell_overwrite_ok=True)
j = 0
a = 900
for i in range(4):
 url ="http://ics.cnvd.org.cn/?max=20&offset="+str(a)
 r = requests.get(urttp://ics.cnvd.org.cnl,headers=headers,cookies=cookies)
 print r.status_code
 while r.status_code != 200:
  r = requests.get(url,headers=headers,cookies=cookies)
  print r.status_code
 html = r.text
 soup = BeautifulSoup(html)
 #print html
 
 for tag in soup.find('tbody',id='tr').find_all('a',href=re.compile('http://www.cnvd.org.cn/flaw/show')):
  print tag.attrs['href']
  wtable.write(j,0,tag.attrs['href'])
  j += 1
 a += 20
 print u"已完成%s"%(a)
filename=str(time.strftime('%Y%m%d%H%M%S',time.localtime()))+"url.xls"
myfile.save(filename)
print u"完成%s的url备份"%time.strftime('%Y%m%d%H%M%S',time.localtime())

# -*- coding: utf-8 -*-
from selenium import webdriver
import xlrd
import xlwt
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import Select
from selenium.common.exceptions import NoSuchElementException
from selenium.common.exceptions import NoAlertPresentException
import unittest, time, re
 
class Gk(unittest.TestCase):
 def setUp(self):
  self.driver = webdriver.Firefox()
  self.driver.implicitly_wait(5)
  self.verificationErrors = []
  self.accept_next_alert = True
 
 def test_gk(self):
  myfile=xlwt.Workbook()
  wtable=myfile.add_sheet(u"info",cell_overwrite_ok=True)
  data = xlrd.open_workbook('url.xlsx')
  table = data.sheets()[0]
  nrows = table.nrows
  driver = self.driver
  
  j = 0
  for i in range(nrows):
   try:
    s = []
    driver.get(table.cell(i,0).value)
    title = driver.find_element_by_xpath("//h2").text
    print title
    s.append(title)
    trs = driver.find_element_by_xpath("//tbody").find_elements_by_tag_name('tr')
    for td in trs:
     tds = td.find_elements_by_tag_name("td")
     for tt in tds:
      print tt.text
      s.append(tt.text)
    k = 0
    for info in s:
     wtable.write(j,k,info)
     k += 1
    j += 1
   except:
    filename=str(time.strftime('%Y%m%d%H%M%S',time.localtime()))+"url.xls"
    myfile.save(filename)
    print u"异常自动保存%s的漏洞信息备份"%time.strftime('%Y%m%d%H%M%S',time.localtime())
   
  filename=str(time.strftime('%Y%m%d%H%M%S',time.localtime()))+"url.xls"
  myfile.save(filename)
  print u"完成%s的漏洞信息备份"%time.strftime('%Y%m%d%H%M%S',time.localtime())
  
 def is_element_present(self, how, what):
  try: self.driver.find_element(by=how, value=what)
  except NoSuchElementException, e: return False
  return True
 
 def is_alert_present(self):
  try: self.driver.switch_to_alert()
  except NoAlertPresentException, e: return False
  return True
 
 def close_alert_and_get_its_text(self):
  try:
   alert = self.driver.switch_to_alert()
   alert_text = alert.text
   if self.accept_next_alert:
    alert.accept()
   else:
    alert.dismiss()
   return alert_text
  finally: self.accept_next_alert = True
 
 def tearDown(self):
  self.driver.quit()
  self.assertEqual([], self.verificationErrors)
 
if __name__ == "__main__":
 unittest.main()