主体步骤
1. 笔记本装fiddler;猎豹WiFi开热点;
2. 手机连接热点,WiFi设置代理-手动-主机为192.168.1.1,端口为8888;
3. 手机浏览器访问fiddler代理ip+端口,如猎豹WiFi是192.168.191.1:8888,安装fiddler证书到手机;否则app是不给联网的。
4. 抓app的包。
5. 分析app登录、签到时都干了什么。
更多关于fiddller参考:
http://chessman-126-com.iteye.com/blog/2001501
http://www.cnphp6.com/archives/97865
http://www.cnblogs.com/mfryf/p/5028010.html
具体实施
好,假设你已经做好了准备工作。
(1)第一步,device_open
当有道云笔记app打开时,app访问device_open,fiddler抓到的包:
注意返回的delusers数组,删除用户?怪吓人的。
上图是POST请求,下图是服务器返回(下同)。
(2)第二步,login
如图,重点是请求时发送的usertoken,这个是app内部产生的。这个token变化的频率是?
经测试,退出app后再次打开,此token没有变化。或许是每天变化一次。后面测试。
服务器返回的就是set-cookie了。usertoken不变,cookie就不用变。
(3)login后的很多请求使用cookie
在这之后app的自动请求已有LOGIN=true的cookie了。
(4)点击签到访问服务器 checkin 方法
点击签到按钮,请求checkin method
返回签到是否成功,签到得到的空间等等。
2016/05/10 09:50
今天打开笔记签到,user token 没变,cookie也没变。
2016/05/11 13:44
user token 和 cookie 依旧没变。
由此推论,只要app运行的环境不改变,发送给server的token不会变,返回的cookie不会变。
退出账号后再次登录,user token会改变。仅退出app(登录状态是保留的),下次打开app自动登录,user token 不改变。
好,下面上代码。关键是main函数中的三个方法,模拟了你打开app-点击签到按钮的这个过程。
程序中有的参数需要自己抓包然后放进去。
1 importjava.io.BufferedReader;2 importjava.io.IOException;3 importjava.io.InputStreamReader;4 importjava.io.OutputStream;5 importjava.net.HttpURLConnection;6 importjava.net.MalformedURLException;7 importjava.net.URL;8
9
10 importjava.io.PrintWriter;11 importjava.net.URLConnection;12 import java.util.*;13 import java.io.*;14 importjava.util.zip.GZIPInputStream;15 importjava.io.UnsupportedEncodingException;16
17 public classSignin {18 public static String seesion_cookie = null;19
20 public static void main(String[] args) throwsIOException {21
32
33 System.out.println("deviceOpen:" +deviceOpen());34 System.out.println("login:" +login());35 System.out.println("checkIn:" +checkIn());36
37 }38
39 public staticString deviceOpen() {40 String url = "http://note.youdao.com/yws/device_open/poll";41 String arg = "your_arg";42 Map headers = new HashMap();43 headers.put("Content-Length", "481");44 headers.put("Content-Type", "application/x-www-form-urlencoded");45
46 returnsendPost(url, arg, headers);47 }48
49 public staticString login() {50 String url = "http://note.youdao.com/login/acc/co/cq?product=YNOTE&cf=7&userid=.......";51 String arg = null;52 Map headers = new HashMap();53 headers.put("Content-Length", "0");54 headers.put("YNOTE-PC", "v2|urstoken||YNOTE|......");55
56 returnsendPost(url, arg, headers);57 }58
59 public staticString checkIn() {60 String url = "https://note.youdao.com/yws/mapi/user?method=checkin";61 String arg = "your_arg";62 Map headers = new HashMap();63 headers.put("Cookie", "YNOTE_LOGIN=true;" +seesion_cookie);64 headers.put("Content-Length", "481");65 headers.put("Content-Type", "application/x-www-form-urlencoded");66
67 returnsendPost(url, arg, headers);68 }69
70
71
72 public static String sendPost(String url, String param, Mapheaders) {73 PrintWriter out = null;74 BufferedReader in = null;75 StringBuilder result = newStringBuilder();76 try{77 URL realUrl = newURL(url);78
79 HttpURLConnection conn =(HttpURLConnection) realUrl.openConnection();80 conn.setRequestMethod("POST");81
82 conn.setRequestProperty("Accept-Encoding", "gzip");83 conn.setRequestProperty("Accept-Charset", "GBK,utf-8;q=0.7,*;q=0.3");84 for(String key : headers.keySet())85 conn.setRequestProperty(key, headers.get(key));86 conn.setRequestProperty("Host", "note.youdao.com");87 conn.setRequestProperty("Connection", "Keep-Alive");88 conn.setRequestProperty("User-Agent", "ynote-android");89
90 conn.setDoOutput(true);91 conn.setDoInput(true);92
93 out = newPrintWriter(conn.getOutputStream());94 if (param != null) out.print(param);95 out.flush();96 System.out.println(conn.getResponseCode() + " " +conn.getResponseMessage());97
98 for (int i = 1; conn.getHeaderFieldKey(i) != null; ++i) {99 if (conn.getHeaderFieldKey(i).equals("Set-Cookie") &&
100 conn.getHeaderField(i).contains("YNOTE_SESS=v2")) {101 seesion_cookie = conn.getHeaderField(i).split(";")[0];102 System.out.println("seesion_cookie:" +seesion_cookie);103 break;104 }105 }106
107 Reader reader = null;108 if ("gzip".equals(conn.getContentEncoding())) {109 System.out.println("Response body is encoded in gzip.");110 reader = new InputStreamReader(newGZIPInputStream(conn.getInputStream()));111 } else{112 reader = newInputStreamReader(conn.getInputStream());113 }114
115 in = newBufferedReader(reader);116 String line;117 while ((line = in.readLine()) != null) {118 result.append(line);119 }120 } catch(Exception e) {121 System.out.println("sendPost Exception !!! " +e);122 e.printStackTrace();123 }124
125 finally{126 try{127 if (out != null) out.close();128 if (in != null) in.close();129 } catch(IOException ex) {130 ex.printStackTrace();131 }132 }133
134 returnresult.toString();135 }136 }
Java Code
2016/05/12 00:53
把程序放在服务器上:
设置crontab例行任务
# signin.shcd/home/whuliss/Documents/
date >>signin_log
java SignIn>> signin_log
log:
Fri Jun 3 00:37:01 CST 2016checkIn:{"total":830472192,"time":1464885510110,"space":6291456,"success":1}
Sat Jun4 00:37:01 CST 2016checkIn:{"total":834666496,"time":1464971913651,"space":4194304,"success":1}
Sun Jun5 00:37:02 CST 2016checkIn:{"total":840957952,"time":1465058318146,"space":6291456,"success":1}
Mon Jun6 00:37:01 CST 2016checkIn:{"total":842006528,"time":1465144721286,"space":1048576,"success":1}
Tue Jun7 00:37:01 CST 2016checkIn:{"total":847249408,"time":1465231125472,"space":5242880,"success":1}
Wed Jun8 00:37:01 CST 2016checkIn:{"total":852492288,"time":1465317528907,"space":5242880,"success":1}