下载HDUOJ所有AC题目代码

Python

通过对杭电OJ的观察,很容易找到规律,根据此规则写相应的代码.
Requests 实现模拟登陆
需要用 BeautifulSoup 处理 status 页面的表格, 获得runid,problemid,代码链接,其实runid就是代码链接

#!/usr/bin/env python3
#coding=utf-8
from bs4 import BeautifulSoup 
import requests
import time
def saveFile(data, fname = "temp.html"):
    with open(fname, "w") as f:
        f.write(data)
        print(fname + '保存成功')
def getCode(codeurl, proid):
    url = hdu_url + codeurl
    code_html = session.get(url, cookies=cookieJar)
    code_html.encoding = 'gb2312'
    data = code_html.text
    soup = BeautifulSoup(data) #初始化
    code = soup.textarea.text #代码区域的标签tag
    saveFile(code, 'HDU'+proid + '.cpp') #保存路径以及文件名,我的格式是当前目录,文件名规则为HDU1001.cpp
def getStatus():
    first = ''
    vis = set() #标记是否保存过
    while(True):
        payload = {'first':first, "user":uname, "pid":"", "lang":"", "status":5}
        status_html = session.get(status_url, cookies=cookieJar, params=payload)
        print(status_html.url)
        status_html.encoding = 'gb2312' #设置编码
        data = status_html.text #转换成str
        soup = BeautifulSoup(data) #初始化
        runid = "" #每次将first初始化为空
        for table in soup.findAll('table'):
            for row in table.findAll('tr'):
                i = 100
                for tr in row.findAll('td'):
                    if(len(tr.text) == 8 and '1' in tr.text): #找到RunId
                        runid = tr.text
                        i = 0
                    if(i == 3):
                        proid = tr.text
                        if(proid in vis):
                            break
                        else:
                            vis |= {proid} #保存过的代码,不再重新保存,节省时间
                    if(i == 6):
                        getCode(tr.a.get('href'), proid) #获取到代码的链接,保存代码
                        time.sleep(1) #休眠一秒,不然服务器反应不过来
                    i += 1      
        if(runid == ''): #本页没有runid, 说明是最后一页
            break
        first = str(int(runid)-1) #下一页 是以本页最后一个Runid - 1,规律
uname = input("请输入用户名: ")
upass = input("请输入密码: ")
hdu_url = "http://acm.hdu.edu.cn/"
login_url = hdu_url + "userloginex.php?action=login"
status_url = hdu_url + "status.php"
login_data = {'username': uname, "userpass": upass,
        "login":"Sign In"}
#保持会话
cookieJar = requests.cookies.RequestsCookieJar()
session = requests.Session()
#登陆
login_resp = session.request("POST", login_url, 
        cookies=cookieJar, data=login_data)
getStatus()