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geetest_spider.py
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geetest_spider.py
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#coding:utf-8
# 爬取“国家企业信用信息公示系统”
# http://www.gsxt.gov.cn/corp-query-search-1.html
# geetest 行为验证码 【未解决】X 【已于2017.4.25解决】
# 暂时使用cookie爬取
from __future__ import division
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
import socket
socket.setdefaulttimeout(60)
import os
import re
import time
import cPickle
import random
import requests
from lxml import etree
from geetest_break import get_validate
# 请求gt和challenge 异常或出错返回空
def get_gt_challenge(url):
# url='http://www.gsxt.gov.cn/SearchItemCaptcha?v=1493114887662'
headers = {
"Accept-Language": "zh-CN,zh;q=0.8",
"Accept-Encoding": "gzip, deflate, sdch",
"X-Requested-With": "XMLHttpRequest",
"Host": "www.gsxt.gov.cn",
"Accept": "application/json, text/javascript, */*; q=0.01",
"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36",
"Connection": "keep-alive",
#"Cookie": "__jsluid=eb8523c9655107d177806597beb43f57; UM_distinctid=15b0d57141c23d-08caf973d-4349052c-1fa400-15b0d57141d940; tlb_cookie1=114ui_8280; Hm_lvt_d7682ab43891c68a00de46e9ce5b76aa=1492692994; Hm_lpvt_d7682ab43891c68a00de46e9ce5b76aa=1493024386; JSESSIONID=E7E8CC28F2EA0ABAF34E5B0B28A76730-n1:0; tlb_cookie=24query_8080; CNZZDATA1261033118=1201860774-1490573985-%7C1493103540; Hm_lvt_cdb4bc83287f8c1282df45ed61c4eac9=1490577462,1492505367; Hm_lpvt_cdb4bc83287f8c1282df45ed61c4eac9=1493104058",
#"Referer": "http://www.gsxt.gov.cn/corp-query-search-1.html"
}
try:
res=requests.get(url,headers=headers).content
if '"challenge"' in res and '"gt"' in res:
gt=re.findall('"gt":"(.*?)"',res)[0]
challenge=re.findall('"challenge":"(.*?)"',res)[0]
return gt,challenge
else:
return '',''
except Exception,e:
return '',''
# 得到查询结果的页数 10piece/page
def get_pageNum(page):
alist=page.xpath(u'//div[contains(@class,"search")]/span')
if len(alist)>0:
pageNum=alist[-1].text
return int(pageNum)
else:
return 1
# 获取一页上所有查询结果的link
def get_uri(page):
links=[]
alist=page.xpath(u'//a[@class="search_list_item db"]')
for item in alist:
# print item.attrib['href']
links.append(item.attrib['href'])
return links
# 爬取一个公司的信息
def crawl_one_piece(s,href,headers):
tt=1
# 若页面未能成功加载 尝试3次
while tt<=3:
tt+=1
html=s.get(href,headers=headers,timeout=60)
time.sleep(4)
page=etree.HTML(html.content)
info_list=[]
dlist=page.xpath(u'//*[@id="primaryInfo"]/div/div[@class="overview"]/dl')
print 'len(dlist):',len(dlist)
if len(dlist)>0:
break
for dl in dlist:
tmp1=dl.xpath('dt/text()')
tmp2=dl.xpath('dd/text()')
if len(tmp1)>0 and len(tmp2)>0:
info_list.append([''.join(tmp1).strip(),''.join(tmp2).strip()])
# info_list.append([tmp1[0].strip(),tmp2[0].strip()])
return info_list
# 规则化文件名
def regular_filename(fname):
invalid_chars=['\\','/',':','?','？','\"','<','>','|','*']
for c in fname:
if c in invalid_chars:
fname=fname.replace(c,'')
return fname
# 对于每个关键字 按页爬取信息
def crawl_by_page(s,searchword,pageNo,challenge,validate,headers):
global data_path
data = {
"searchword": searchword,
"geetest_challenge": challenge,
"token": "41111854",
"tab": "",
"geetest_seccode": validate+"|jordan",
"geetest_validate": validate,
'page':str(pageNo)
}
href='http://www.gsxt.gov.cn/corp-query-search-%s.html' %(pageNo)
html=s.post(href,headers=headers,data=data)
time.sleep(2)
html=html.content
# print html
page=etree.HTML(html)
pageNum=-1 # -1 表示不是首页 未计算页数
Num=-1
# 爬取第一页的时候 计算下查询条数 页数
if pageNo==1:
Num=get_pageNum(page)
print 'Num:',Num
pageNum=int((Num-1)/10+1) # 页数 10/页 1~10 11~20
print 'pageNum:',pageNum
# 每一页上的链接 若页面异常 则len(links)==0
links=get_uri(page)
print 'len(links) of page-%s:' %(pageNo),len(links)
# 标志位 表示页面是否未加载 通过len(links)==0来判断
# flag=1
# 遍历 该页所有结果
web_site='http://www.gsxt.gov.cn'
for i,link in enumerate(links):
try:
print 'crawling...',link
info_list=crawl_one_piece(s,web_site+link,headers)
print 'len(info_list):',len(info_list)
for item in info_list:
print item[0],item[1]
if len(info_list)>1:
fname=info_list[1][1]+'(%s)' %info_list[0][1]
fname=regular_filename(fname)
# 1.方便可视化 保存为.txt
f=open(data_path+os.sep+searchword+os.sep+fname+'.txt','w')
f.write('\n'.join([' '.join(item) for item in info_list]))
f.close()
else:
# 该项未能成功加载 len(info_list)==0
f=open(data_path+os.sep+searchword+os.sep+'piece_failed.txt','a')
f.write('%s-%s %s:%s\n' %(pageNo,i+1,web_site+link,'load failed'))
f.close()
# 2.提高效率 保存为cPickle文件 后期再处理为.txt文件
# cPickle.dump(info_list,open(searchword+os.sep+fname+'.pkl','w'))
print '%s page:%s-%s has load successed...' %(searchword,pageNo,i+1)
except Exception,e:
# 一项公司信息爬取错误
f=open(data_path+os.sep+searchword+os.sep+'piece_failed.txt','a')
f.write('%s-%s %s:%s\n' %(pageNo,i+1,web_site+link,e))
f.close()
print '%s page:%s-%s has load failed...' %(searchword,pageNo,i+1)
print '%s page:%s has load success...' %(searchword,pageNo)
# 返回pageNum 若第一页返回真实页数 否则返回-1 忽略
return Num,pageNum,len(links)
# 按关键字爬取信息
# 验证码破解失败-1
# 关键字不可查 0
# 否则返回 1
# 页面加载异常 返回2 待重新爬取
def crawl_by_key(searchword):
global data_path
headers = {
"Accept-Language": "zh-CN,zh;q=0.8",
"Accept-Encoding": "gzip, deflate, sdch",
"Host": "www.gsxt.gov.cn",
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
"Upgrade-Insecure-Requests": "1",
"Connection": "keep-alive",
# "Cookie": "__jsluid=eb8523c9655107d177806597beb43f57; UM_distinctid=15b0d57141c23d-08caf973d-4349052c-1fa400-15b0d57141d940; tlb_cookie1=114ui_8280; Hm_lvt_d7682ab43891c68a00de46e9ce5b76aa=1492692994; Hm_lpvt_d7682ab43891c68a00de46e9ce5b76aa=1493116163; JSESSIONID=A4ED466AC6C5324C6F6CD02E079D70E2-n2:0; tlb_cookie=42query_8080; CNZZDATA1261033118=1201860774-1490573985-%7C1493114715; Hm_lvt_cdb4bc83287f8c1282df45ed61c4eac9=1490577462,1492505367; Hm_lpvt_cdb4bc83287f8c1282df45ed61c4eac9=1493116859",
#"Referer": "http://www.gsxt.gov.cn/corp-query-search-2.html?geetest_seccode=d0186455515f9c23f60ea99293ea7dd1%7Cjordan&tab=&geetest_validate=d0186455515f9c23f60ea99293ea7dd1&searchword=%E7%99%BE%E5%BA%A6&geetest_challenge=81245508634092e365977f9b6111140f5b&token=41111854&page=2",
"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36"
}
# 1 测试关键字是否可查
test_url='http://www.gsxt.gov.cn/corp-query-search-test.html?searchword=%s' %searchword
try:
res=requests.get(test_url,headers=headers).content
print res
if res=='false':
print 'searchword invaild,please input again!'
f=open(data_path+os.sep+searchword+os.sep+'searchword_invalid.txt','a')
f.write('%s:invalid\n' %(searchword))
f.close()
return 0
except Exception,e:
return 0
#===========关键字可查
url='http://www.gsxt.gov.cn/SearchItemCaptcha?v=%s' %(1493114887662+random.randint(0,10000))
gt,challenge=get_gt_challenge(url)
# gt,challenge请求失败 返回0
if gt=='' or challenge=='':
return -1
print 'gt:',gt
print 'challenge:',challenge
# 请求破解验证码
challenge,validate=get_validate(gt,challenge)
# challenge,validate破解失败 返回0
if validate=='' or challenge=='':
return -1
print 'new_challenge:',challenge
print 'validate:',validate
# ===============验证码破解成功
s=requests.Session()
# 首页
try:
Num,pageNum,len_links=crawl_by_page(s,searchword,1,challenge,validate,headers)
time.sleep(2)
f=open(data_path+os.sep+'piecesNum.txt','a')
f.write('searchword:%s has :%s\n' %(searchword,Num))
f.close()
except Exception,e:
# 首页爬取错误
f=open(data_path+os.sep+searchword+os.sep+'page_failed.txt','a')
f.write('%s-page:%s %s\n' %(searchword,1,e))
f.close()
pageNum=-1
# 若首页得到的总页数>1 则继续爬取
# 若首页爬取错误 pageNum==-1 for.. 不执行
for i in range(2,pageNum+1):
try:
_,_,len_links=crawl_by_page(s,searchword,i,challenge,validate,headers)
time.sleep(2)
except Exception,e:
# 页爬取错误
f=open(data_path+os.sep+searchword+os.sep+'page_failed.txt','a')
f.write('%s-page:%s %s\n' %(searchword,i,e))
f.close()
print 'key word:%s has crawled over...' %(searchword)
# 页面加载异常 返回2 待重新爬取
if len_links==0:
return 2
return 1
def main():
global data_path
data_path='data2'
if not os.path.exists(data_path):
os.mkdir(data_path)
# searchword_list=[u'阿里',u'阿里巴巴',u'甲骨文',u'网易',u'微软',u'百度',u'爱奇艺',u'腾讯',u'优酷',u'华为',u'乐视']
searchword_list=[u'微信']
tmp_list=searchword_list
run_count=0
# 未成功爬取的关键字列表不为空 且 轮询次数<=3
# tmp_list存放每次迭代爬取后 失败的关键字
# 供新的一轮继续重新爬取
while len(tmp_list)>0 and run_count<=3:
run_count+=1
searchword_list=tmp_list
tmp_list=[]
for searchword in searchword_list:
try:
# 创建文件夹 保存数据
if not os.path.exists(data_path+os.sep+searchword):
os.mkdir(data_path+os.sep+searchword)
# 按关键字爬取信息
# 验证码破解失败-1
# 关键字不可查 0
# 页面列表为空（未加载） 返回2
# 否则返回 1
tag=crawl_by_key(searchword)
time.sleep(1)
if tag==-1:
print '%s captcha err.' %(searchword)
tmp_list.append(searchword) # 重新爬取
if tag==0:
print '%s key word invalid.' %(searchword)
if tag==1:
print '%s not find err.' %(searchword)
if tag==2:
print '%s not load all...' %(searchword)
tmp_list.append(searchword) # 重新爬取
except Exception,e:
# 关键字 未知错误
print '%s has occured err:%s' %(searchword,e)
f=open(data_path+os.sep+searchword+os.sep+'unknown_failed.txt','a')
f.write('%s:%s\n' %(searchword,e))
f.close()
time.sleep(2)
print 'searchword_list crawled over...'
if len(tmp_list)>0:
f=open(data_path+os.sep+'crawled_failed.txt','a')
f.write('\n'.join(tmp_list))
f.close()
if __name__ == '__main__':
main()