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login.PNG
下面给大家看一下,fiddler抓包的结果(提交的form信息和请求的头部信息):
form.PNG
请求头:
捕获2.PNG
接下来小编给大家解释下form中各个参数的含义:
1 TxtBox1 &TxtBox2 后面的内容是固定不变的(我也不知道后面的值是什么鬼)
2 ddDay 后面跟的参数是你想要预约的日期(“今日”或“明日”)
3 ddRoom 一共有7位数字(第一位表示校区,即:1----“东区”,“2”----“中区”,3----“西区”;第2-4位表示 预约教室的门牌号;后三位“001”是固定的)所以上图中“3207001”指代的就是西区图书馆207自习室;
4 txtSeats:是已预约的座位/空闲座位
小编在撸代码的时候,以为这个网站没有反爬措施,是我天真了,竟然还有反爬!所以,还是老规矩需要在请求的头部信息加上headers,伪装成浏览器才行。
import requests
import http.cookiejar
from bs4 import BeautifulSoup
import pytesseract
import time
cookies = {} #构建一个空字典用来存放cookies
headers={
'Connection': 'Keep-Alive',
'Accept-Language': 'zh-CN,zh;q=0.8',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 SE 2.X MetaSr 1.0',
'Accept-Encoding': 'gzip, deflate, sdch',
'Upgrade-Insecure-Requests':'1',
'Referer': 'http://172.16.47.84/',
'X-Requested-With': 'XMLHttpRequest',
'Host': '172.16.47.84',
}
def login(username, password, code):
url = 'http://172.16.47.84/'
form = {
'__VIEWSTATE': '/wEPDwUKMTM4MDI3NzI1MGRkScbX95yvCTaTc5BiKFlgoJSN0gi9TvPi4as2Sed98Ug=',
'__EVENTVALIDATION': '/wEWBQLYjc7zAwLs0bLrBgLs0fbZDALs0Yq1BQKM54rGBuOROfeko3/nasulQt/v8ihgd8TDoZ4pgdA4rtbVvanV',
'TextBox1': username,
'TextBox2': password,
'TextBox3': code,
'Button1': '登录',
}
resp = requests.post(url, headers=headers, data=form, cookies=cookies)
对了,这个网站也有验证码,而且还极为复杂,表示给用户带来了很不好的体验,用pytesseract识别的时候,成功率几乎为0.在下感觉这个开发者脑子里有坑,作为一个人类的我,倾斜过后的0和o,还有g和数字9 都不分清楚,更不要讲机器了。下面是验证码的处理:
def get_code():
url = 'http://172.16.47.84/VerifyCode.aspx?'
resp = requests.get(url, headers=headers)
cookies['ASP.NET_SessionId'] = resp.cookies.get('ASP.NET_SessionId')
with open('code.jpg', 'wb') as img:
img.write(resp.content)
def check_show():
checkcode = Image.open("code.jpg")
image = Image.open('code.jpg')
imgry = image.convert('L')
imgry.show()
成功登陆后就是选座了:
def cchose_seat():
try:
churl = "http://172.16.47.84/DayNavigation.aspx"
churl_1 = "http://172.16.47.84/AppSTod.aspx?roomid=3207&hei=834&wd=1920"
responce = requests.get(url)
form_1 = {
'__VIEWSTATE':'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',
'__EVENTVALIDATION':"/wEWEwL72v/5BALs0bLrBgLs0fbZDAKPwd2MAQLpu8rPDwKt6srPDwLytq6nDwK6p5TSCwKVpujRCwKVpuzQCwKVpvCRCAKetsSdCgL0p+TRCAL0p5TSCwL0p8CRDwL9h9mtDgKM54rGBgK7q7GGCALWlM+bAudkkeCZYjIbgxcot/UJfplpDini+B9RpiIThosUANI+",
'TextBox1':"883",
'TextBox2':"1920",
"ddlDay":"明日",
'ddlRoom':"3207001",
"txtSeats":"",
"Button1":"手动选座",
}
resp_1 = requests.post(churl, headers=headers, data=form_1, cookies=cookies)
except:
print("####---------登陆失败--------#######")
###提交预约座位
def chseat():
churl = "http://172.16.47.84/AppSTod.aspx?roomid=3207&hei=834&wd=1920"
churl_1= "http://172.16.47.84/Skip.aspx?seatid=3207128"
from_2 = {
'roomid' :'3207',
'hei' :'883',
'wd' :'1920',
}
from_3 = {
'seatid':'3207128',
}
for i in range(0,2):
resp_2 = requests.post(churl,headers = headers,data = from_2,cookies = cookies)
resp_3 = requests.post(churl_1,headers = headers,data = from_3,cookies = cookies)
soup = BeautifulSoup(resp_3.content,'lxml')
Soup = soup.find_all("script")
if Soup:
print(Soup[0])
else:
print("正在抢座")
for i in range(0,50):
time.sleep(1) #为防止服务器瘫痪,请求50次,这个大家可以根据需要,自行改动
resp_2 = requests.post(churl,headers = headers,data = from_2,cookies = cookies)
resp_3 = requests.post(churl_1,headers = headers,data = from_3,cookies = cookies)
检测是否成功抢座,是根据预约成功后弹出一个页面,告诉“你已经成功预约”, 而这句话是存在于
给大家看下结果:
运行结果.PNG
登陆网站验证:
验证结果.PNG
小编还在成长,希望大家多多指教。
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