验证码和爬虫之间的爱恨情仇?
识别验证码的操作:
古诗文网址:https://so.gushiwen.cn/user/login.aspx?from=http://so.gushiwen.cn/user/collect.aspx
使用打码平台识别验证码的编码流程:
将验证码图片进行本地下载
1.请求过程
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-oAy3qbdP-1637062720658)(图片/1.png)]
1.古诗文网验证识别.py
import requests
from lxml import etree
from CodeClass import YDMHttp
#封装识别验证码图片的函数
def getCodeText(imgPath,codeType):
# 普通用户用户名
username = 'bobo328410948'
# 普通用户密码
password = 'bobo328410948'
# 软件ID,开发者分成必要参数。登录开发者后台【我的软件】获得!
appid = 6003
# 软件密钥,开发者分成必要参数。登录开发者后台【我的软件】获得!
appkey = '1f4b564483ae5c907a1d34f8e2f2776c'
# 图片文件:即将被识别的验证码图片的路径
filename = imgPath
# 验证码类型,# 例:1004表示4位字母数字,不同类型收费不同。请准确填写,否则影响识别率。在此查询所有类型 http://www.yundama.com/price.html
codetype = codeType
# 超时时间,秒
timeout = 20
result = None
# 检查
if (username == 'username'):
print('请设置好相关参数再测试')
else:
# 初始化
yundama = YDMHttp(username, password, appid, appkey)
# 登陆云打码
uid = yundama.login();
print('uid: %s' % uid)
# 查询余额
balance = yundama.balance();
print('balance: %s' % balance)
# 开始识别,图片路径,验证码类型ID,超时时间(秒),识别结果
cid, result = yundama.decode(filename, codetype, timeout);
print('cid: %s, result: %s' % (cid, result))
return result
#将验证码图片下载到本地
headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36'
}
url = 'https://so.gushiwen.org/user/login.aspx?from=http://so.gushiwen.org/user/collect.aspx'
page_text = requests.get(url=url,headers=headers).text
#解析验证码图片img中src属性值
tree = etree.HTML(page_text)
code_img_src = 'https://so.gushiwen.org'+tree.xpath('//*[@id="imgCode"]/@src')[0]
img_data = requests.get(url=code_img_src,headers=headers).content
#将验证码图片保存到了本地
with open('./code.jpg','wb') as fp:
fp.write(img_data)
#调用打码平台的示例程序进行验证码图片数据识别
code_text = getCodeText('code.jpg',1004)
print('识别结果为:',code_text)
2、CodeClass.py (这是那个云打码的)
import http.client, mimetypes, urllib, json, time, requests
######################################################################
class YDMHttp:
apiurl = 'http://api.yundama.com/api.php'
username = ''
password = ''
appid = ''
appkey = ''
def __init__(self, username, password, appid, appkey):
self.username = username
self.password = password
self.appid = str(appid)
self.appkey = appkey
def request(self, fields, files=[]):
response = self.post_url(self.apiurl, fields, files)
response = json.loads(response)
return response
def balance(self):
data = {'method': 'balance', 'username': self.username, 'password': self.password, 'appid': self.appid,
'appkey': self.appkey}
response = self.request(data)
if (response):
if (response['ret'] and response['ret'] < 0):
return response['ret']
else:
return response['balance']
else:
return -9001
def login(self):
data = {'method': 'login', 'username': self.username, 'password': self.password, 'appid': self.appid,
'appkey': self.appkey}
response = self.request(data)
if (response):
if (response['ret'] and response['ret'] < 0):
return response['ret']
else:
return response['uid']
else:
return -9001
def upload(self, filename, codetype, timeout):
data = {'method': 'upload', 'username': self.username, 'password': self.password, 'appid': self.appid,
'appkey': self.appkey, 'codetype': str(codetype), 'timeout': str(timeout)}
file = {'file': filename}
response = self.request(data, file)
if (response):
if (response['ret'] and response['ret'] < 0):
return response['ret']
else:
return response['cid']
else:
return -9001
def result(self, cid):
data = {'method': 'result', 'username': self.username, 'password': self.password, 'appid': self.appid,
'appkey': self.appkey, 'cid': str(cid)}
response = self.request(data)
return response and response['text'] or ''
def decode(self, filename, codetype, timeout):
cid = self.upload(filename, codetype, timeout)
if (cid > 0):
for i in range(0, timeout):
result = self.result(cid)
if (result != ''):
return cid, result
else:
time.sleep(1)
return -3003, ''
else:
return cid, ''
def report(self, cid):
data = {'method': 'report', 'username': self.username, 'password': self.password, 'appid': self.appid,
'appkey': self.appkey, 'cid': str(cid), 'flag': '0'}
response = self.request(data)
if (response):
return response['ret']
else:
return -9001
def post_url(self, url, fields, files=[]):
for key in files:
files[key] = open(files[key], 'rb');
res = requests.post(url, files=files, data=fields)
return res.text