python爬取cnvd漏洞库信息的实例

Python  /  管理员 发布于 7年前   427

今天一同事需要整理http://ics.cnvd.org.cn/工控漏洞库里面的信息，一看960多个要整理到什么时候才结束。

所以我决定写个爬虫帮他抓取数据。

看了一下各类信息还是很规则的，感觉应该很好写。

but这个网站设置了各种反爬虫手段。

经过各种百度，还是解决问题了。

设计思路：

1.先抓取每一个漏洞信息对应的网页url

2.获取每个页面的漏洞信息

# -*- coding: utf-8 -*-import requestsimport reimport xlwtimport timefrom bs4 import BeautifulSoupheaders = { '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 = 0a = 900for 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 webdriverimport xlrdimport xlwtfrom selenium.webdriver.common.by import Byfrom selenium.webdriver.common.keys import Keysfrom selenium.webdriver.support.ui import Selectfrom selenium.common.exceptions import NoSuchElementExceptionfrom selenium.common.exceptions import NoAlertPresentExceptionimport 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("//h1").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()

好了。看看结果怎样！

OK！剩下手动整理一下，收工！

以上这篇python爬取cnvd漏洞库信息的实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。