东大校园网一键登录

　　东大校园网很不好用，我在宿舍连着网。当我出去自习的时候，也想用网，就连不上。
       因为东大校园网只允许一个人使用，这使得想合伙共用一个账号的人就没法整了。学校这么做多半是为了多挣点钱，这对于一个月只用2,3G的人是一种剥削。既然制度不对，为什么不改呢？
       于是只能先断开一下，在重新登陆校园网了。可是坑爹的问题又出现了，有三个按钮：连接，断开连接，断开全部连接。
        我点了“断开网络”，然后再“连接网络”，它还告诉我：当前连接数大于一。
        实际上，只有一个管用：应该点“断开全部连接”，再点“连接网络”。
        那么就得分析一下为啥会有这种逗比的情况：编这个页面的人多半是同情贫苦大众的，他以为学校肯定会开明到允许多个学生共用一个账号（然而他高估了学校），这样一来，中间那个按钮就起作用了，那个按钮就是为多个用户共用一个账号而生的。但是最终那个按钮没能派上用场，反倒成了累赘，总是误导人，不信可以统计一下，有多少人在一分钟之内先点了“断开连接”，然后又点了“断开全部连接”，这就说明又多少次点中间按钮是不管用的，是不符合人类需求的。学校既然狠心一人一个账号来剥削群众，为啥就不删除哪一个按钮呢？
        连上了网，一下子还开了一个小窗口，为啥不把这个窗口所显示的信息跟页面合并呢。这就使得我被迫多移动一次鼠标去关它。
        实际上，这个功能是后来添加的。http://jifei.neu.edu.cn/stats/dashboard?sid=12815848134566654这个链接里面的参数sid是随机生成的，发送到服务器上，服务器完成查询之后，将流量信息保存到一个hash表中，键是这个随机数，值是流量使用情况。所以这个是实现是有可能出bug的，就是可能撞车，张三和李四同时登陆校园网，可能张三看到的流量信息是李四的。
如果用linux登陆校园网，可以用下面这个脚本,把用户名和密码改一下就可以了。
#!/bin/bash
#use 'ping' to check whether you are connected to NEU
ping -c2 'www.neu.edu.cn' || { echo "You should connect to NEU firstly" ;exit 0 ; }
user='xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
password='xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
temp=`mktemp`
#disconnect all the connections
curl -d "uid=$user&password=$password&range=2&timeout=1&operation=disconnectall" "http://ipgw.neu.edu.cn/ipgw/ipgw.ipgw" -o $temp 
iconv -f "gb2312" -t "utf-8"  $temp  -o $temp
cat $temp | grep '<td>.*</td>'
#if ask connect,connect it
if test $# -eq 0;then
    curl -d "uid=$user&password=$password&range=2&timeout=1&operation=connect" "http://ipgw.neu.edu.cn/ipgw/ipgw.ipgw" -o $temp
    iconv -f "gb2312" -t "utf-8"  $temp  -o $temp
    cat $temp | grep '<td>.*</td>'
fi
#output how much energy did you use .
curl -d "uid=$user&password=$password" "http://jifei.neu.edu.cn/stats/dashboard?sid=0" -o $temp 
curl "http://jifei.neu.edu.cn/stats/dashboard?sid=0" -o $temp  
res=`cat $temp | grep '<li>.*MB</li>'`
res=${res//[<li>,</li>]/}
echo "$res"


还可以用一个网页打开，原理是用js向服务器post表单，自动登陆。
<html>
<script>
    var name='stu_20124003';
    var password="xxxxxxxxxxxxxxxxxxxxxxxxxxx";
    var user="uid="+name+"&password="+password;
    var data=user+"&range=2&timeout=1&";
    var x="http://ipgw.neu.edu.cn/ipgw/ipgw.ipgw";
    var y= "http://jifei.neu.edu.cn/stats/dashboard?sid=0";
    function post(url,data){
        var q=new XMLHttpRequest();
        q.open("post",url);
        q.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
        q.send(data);
    } 
       post(x,encodeURI(data+"operation=disconnectall"));
       post(x,encodeURI(data+"operation=connect"));
       post(y,encodeURI(user));
    location=y;
</script>
</ht

===============java版==================

import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.Scanner;

public class URLConnectionPost {
 static void post(String url, String data) {
  try {
   URLConnection connection = new URL(url).openConnection();
   connection.setDoOutput(true);
   connection.setRequestProperty("content-type", "application/x-www-form-urlencoded");
   OutputStream cout = connection.getOutputStream();
   cout.write(data.getBytes());
   cout.close();
   connection.getInputStream();
  } catch (Exception e) {
   e.printStackTrace();
  }
 }

 public static void main(String[] args) {
  String name = "stu_20124003", password = "xxxxxxxxxxxxx";
  String user = "uid=" + name + "&password=" + password, data = user + "&range=2&timeout=1&";
  String x = "http://ipgw.neu.edu.cn/ipgw/ipgw.ipgw", y = "http://jifei.neu.edu.cn/stats/dashboard?sid=0";
  post(x, data + "operation=disconnectall");
  post(x, data + "operation=connect");
  post(y, user);
  try {
   Scanner cin = new Scanner(new URL(y).openConnection().getInputStream());
   while(cin.hasNext()){
    System.out.println(cin.nextLine());
   }
   cin.close();
  } catch (Exception e) {
   e.printStackTrace();
  }
 }
}


在连接校园网之前程序会点击“断开全部连接”，然后再点击“连接”。所以只要连着校园网，一旦打开这个网页就肯定登陆了。
======================
4.20日更新
现在，东大校园网改版了，确实是变好了不少。首先，那个显示流量的弹框没了，变成了ajax请求；其次，手机端变得漂亮多了.
java大法好
public class Main {
    static String tos(InputStream cin) {
        Scanner in = new Scanner(cin);
        String ans = "";
        while (in.hasNext()) {
            ans += in.nextLine() + "
";
        }
        in.close();
        return ans;
    }
    static InputStream post(String url, String data) {
        try {
            URLConnection connection = new URL(url).openConnection();
            connection.setDoOutput(true);
            connection.setRequestProperty("content-type",
                    "application/x-www-form-urlencoded");
            OutputStream cout = connection.getOutputStream();
            cout.write(data.getBytes());
            cout.close();
            return connection.getInputStream();
        } catch (Exception e) {
            System.out.println("没连校园网");
            // e.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) {
        String name = "stu_20124003", password = "xxxxxxxxx";
        String user = "username=" + name + "&password=" + password;
        String base = "http://ipgw.neu.edu.cn:803/";
        String logout = base + "include/auth_action.php";
        String login = base + "srun_portal_pc.php?ac_id=1&";
        post(logout, user + "&action=logout&ajax=1");
        post(login, user + "&action=login&ac_id=1");
        InputStream cin = post(logout, "action=get_online_info");
        String s[] = tos(cin).split(",");
        System.out.println("已用流量："
                + new DecimalFormat("#,###").format(Long.parseLong(s[0])));
        long time = Long.parseLong(s[1]);
        System.out.println("登录时间：" + String.format("%02d:%02d:%02d", time / 3600,
                (time / 60) % 60, time % 60));
        System.out.println("账户余额：" + s[2]);
        System.out.println("IP地址：" + s[5]);
    }
}

 顺道学学python

from urllib.request import Request, urlopen
def post(url, data, doCallback):
    req = Request(url)
    fd = urlopen(req, data.encode(encoding='utf_8'))
    if(doCallback):
        return fd.read().decode("utf_8")
name = "stu_20124003"
password = "xxxxxxxx" 
user = "username=" + name + "&password=" + password
base = "http://ipgw.neu.edu.cn:803/";
logout = base + "include/auth_action.php";
login = base + "srun_portal_pc.php?ac_id=1&";
post(logout, user + "&action=logout&ajax=1", False)
post(login, user + "&action=login&ac_id=1", False);
ans = post(logout, "action=get_online_info", True)
value = ans.split(sep=',')
def formatFlux(s):
    ans = ""
    danwei = "B,K,M,G".split(",")
    i=len(danwei)-1
    while i>=0:
        if i*3<=len(s):
            ans+=s[max(len(s)-i*3-3,0):len(s)-i*3]+danwei[i]+' '
        i=i-1
    return ans
print("已用流量：" + formatFlux(value[0]))
t = int(value[1])
print("登录时间：%02d:%02d:%02d" % (t / 3600, (t / 60) % 60, t % 60))
print ("账户余额：" + value[2])
print("IP地址：" + value[5])

 javascript也好用，不过是setHeader几下罢了。

<html>
<h1 id='haha'></h1>
<script>
    var name = 'stu_20124003';
    var password = "xxxxxxxxx";
    var user = "username=" + name + "&password=" + password;
    function post(url, data, doCallback) {
        var q = new XMLHttpRequest();
        q.open("post", url);
        q.setRequestHeader('Referer', 'http://ipgw.neu.edu.cn:803');
        q.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
         q.setRequestHeader("Origin","http://ipgw.neu.edu.cn:804");
        if (doCallback) {
            q.onreadystatechange = function(q) {
                if (q.readyState == 4 && q.status == 200) {
                    document.getElementById('haha').innerHtml = q.responseText;
                }
            };
        }
        q.send(data);
    }
    var base = "http://ipgw.neu.edu.cn:803/";
    var logout = base + "include/auth_action.php";
    var login = base + "srun_portal_pc.php?ac_id=1&";
    post(logout, user + "&action=logout&ajax=1", false);
    post(login, user + "&action=login&ac_id=1", false);
    post(logout, "action=get_online_info", true);
</script>
</html>

 林教主发现,断开连接时还需要post用户名,无需post正确的密码,后台没有对密码进行检测是否正确.于是,林教主把全校人的校园网断开了一遍.

现在我来北航了,北航校园网1G只要5毛钱,允许多人同时在线,节假日免费,每月初赠送1G,登录页面还算漂亮.总而言之,北航校园网比东北大学建设的好多了.

public class Main {
    static boolean post(String url, String data) throws IOException {
        URLConnection connection = new URL(url).openConnection();
        connection.setDoOutput(true);
        OutputStream cout = connection.getOutputStream();
        cout.write(data.getBytes());
        cout.close();
        StringBuilder builder = new StringBuilder();
        Scanner cin = new Scanner(connection.getInputStream());
        while (cin.hasNext()) {
            builder.append(cin.nextLine());
        }
        cin.close();
        return builder.toString().contains("login_ok");
    }
    public static void main(String[] args) throws IOException {
        String username = "xxxxx", password = "xxxxx";
        while (false == post(
                "https://gw.buaa.edu.cn:802/include/auth_action.php",
                "action=login&username=" + username + "&password={B}"
                        + Base64.getEncoder()
                                .encodeToString(password.getBytes())
                        + "&save_me=1&ajax=1&ac_id=4"));
    }
}

用python的requests库实现起来更简单

import requests
import base64

username = "xxxx"
password = "xxxx"

def go(action="login"):
    resp = requests.post("https://gw.buaa.edu.cn:802/include/auth_action.php", data={
        "action": action,
        "username": username,
        "password": "{B}" + base64.encodebytes(password.encode("utf8")).decode("utf8"),
        "save_me": 0,
        "ajax": 1,
        "ac_id": 22,
    })
    resp.encoding = "utf8"
    print(resp.text)

go("login")

手机端登录时,需要打开浏览器输入用户名密码,十分麻烦,所以编了一个android app,方便一键登录.本程序能自动打开wifi,链接校园网,然后点一下登录并退出就可以了.把用户名和密码存储在SharedPreference里面,因为android经验很少,特此记录.

Main.java:本程序唯一的Activity

public class Main extends Activity implements View.OnClickListener {
    Button loginButton, exitButton;
    EditText username, password;
    TextView info;
    Handler handler = new Handler();
    SharedPreferences sharedPreferences;
    Semaphore semaphore = new Semaphore(1);
    Runnable runnable = new Runnable() {
        long lastLoginTime = 0;

        @Override
        public void run() {
            try {
                semaphore.acquire();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            if (System.currentTimeMillis() - lastLoginTime < 3000) {
                return;
            } else {
                lastLoginTime = System.currentTimeMillis();
                login(username.getText().toString(), password.getText().toString());
            }
            semaphore.release();
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        loginButton = (Button) findViewById(R.id.login);
        exitButton = (Button) findViewById(R.id.exit);
        username = (EditText) findViewById(R.id.username);
        password = (EditText) findViewById(R.id.password);
        info = (TextView) findViewById(R.id.info);
        loginButton.setOnClickListener(this);
        exitButton.setOnClickListener(this);
        init();
        username.setText(sharedPreferences.getString("username", ""));
        password.setText(sharedPreferences.getString("password", ""));
    }

    void init() {
        WifiManager wifiManager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
        wifiManager.setWifiEnabled(true);
        WifiConfiguration config = new WifiConfiguration();
        config.SSID = ""BUAA-WiFi"";
        int netId = wifiManager.addNetwork(config);
        wifiManager.enableNetwork(netId, true);
        sharedPreferences = this.getSharedPreferences("wifi", 0);
    }

    @Override
    public void onClick(View v) {
        if (v == exitButton) {
            finish();
            System.exit(0);
        }
        if (username.getText().length() == 0 || password.getText().length() == 0) {
            Toast.makeText(this, "please input username&password", Toast.LENGTH_LONG).show();
            return;
        }
        if (semaphore.availablePermits() == 1) {
            new Thread(runnable).start();
        }
    }

    boolean post(String url, String data) throws IOException {
        URLConnection connection = new URL(url).openConnection();
        connection.setDoOutput(true);
        OutputStream cout = connection.getOutputStream();
        cout.write(data.getBytes());
        cout.close();
        StringBuilder builder = new StringBuilder();
        Scanner cin = new Scanner(connection.getInputStream());
        while (cin.hasNext()) {
            builder.append(cin.nextLine());
        }
        cin.close();
        return builder.toString().contains("login_ok");
    }

    void login(String username, String password) {
        try {
            int cnt = 2;
            while (cnt-- > 0 && !post(
                    "https://gw.buaa.edu.cn:802/include/auth_action.php",
                    "action=login&username=" + username + "&password={B}"
                            + Base64.encodeToString(password.getBytes(), Base64.DEFAULT)
                            + "&save_me=1&ajax=1&ac_id=4"))
                Thread.sleep(1000);
            if (cnt > 0) {
                sharedPreferences.edit().putString("username", Main.this.username.getText().toString()).putString("password", Main.this.password.getText().toString()).commit();
                exitButton.callOnClick();
            } else {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(Main.this, "login failed", Toast.LENGTH_LONG).show();
                    }
                });
            }
        } catch (IOException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

本程序布局文件:唯一的layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <EditText
        android:id="@+id/username"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="username" />

    <EditText
        android:id="@+id/password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="password"
        android:inputType="textPassword" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/exit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="exit" />

        <Button
            android:id="@+id/login"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="login&amp;exit" />

    </LinearLayout>

    <TextView
        android:id="@+id/info"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

 用网络请求的方式登录校园网有时无法成功,这是可以模拟浏览器,这样登录成功率百分之百,但是运行速度有些慢.下面代码用到HtmlUnit库.创建maven项目并添加HtmlUnit的依赖即可.

public class App {
    public static void main(String[] args) throws Exception {
        WebClient client = new WebClient(BrowserVersion.CHROME);
        HtmlPage page = client.getPage(
                "https://gw.buaa.edu.cn:802/beihanglogin.php?ac_id=22&url=http://gw.buaa.edu.cn:802/beihangview.php");
        HtmlTextInput loginname = (HtmlTextInput) page.getElementById("loginname");
        HtmlPasswordInput password = (HtmlPasswordInput) page.getElementById("password");
        HtmlSubmitInput button = (HtmlSubmitInput) page.getElementById("button");
        loginname.setValueAttribute("xxxxx");
        password.setValueAttribute("xxxxx");
        button.click();  
        client.close();
    }
}

带配置文件的登录，第一次登录时会提示输入用户名密码并保存到家目录下。

import base64

import requests
import warnings
import time
import os
import json
warnings.filterwarnings("ignore")


def login(username, password):
    print(username,password)
    resp = requests.post("https://gw.buaa.edu.cn:803/include/auth_action.php",
                         data={
                             "action": "login",
                             "username": username.lower(),
                             "password": "{B}" + base64.encodebytes(password.encode("utf8")).decode("utf8"),
                             "save_me": 0,
                             "ajax": 1,
                             "ac_id": 22
                         }, verify=0)
    resp.encoding = "utf8" 
    if "login_ok" in resp.text:
        return True
    else:
        return False


filename = os.path.join(os.path.expanduser("~"), '.school-net.json')
if os.path.exists(filename):
    config = json.load(open(filename,encoding='utf8'))
    resp = login(config['username'], config['password'])
else:
    while True:
        username = input("please input username : ").strip()
        if not username:
            continue
        password = input("please input password : ").strip()
        if not password:
            continue 
        if login(username, password):
            break
        else:
            print("登录失败，可能是用户名密码错误")
    config = dict(username=username, password=password)
    json.dump(config, open(filename,mode="w"))
    resp = True

if resp:
    print("login ok")
else:
    print("login failed")
time.sleep(2)

　　

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原文地址：https://www.cnblogs.com/weiyinfu/p/5124106.html