malav shah malav shah - 20 days ago 9
Android Question

ByetHost server passing html values "Checking your browser" with JSON String

While trying to parse json string to android, HTML values are passed.
Before a day all was working good, and suddenly my app start crashing when trying to fetch database with the help of php files.

When I checked noticed that html values..
see logcat

08-10 01:09:55.814: E/result(6744): <html><body><h2>Checking your browser..<h2><script type="text/javascript" src="/aes.js" ></script><script>function toNumbers(d){var e=[];d.replace(/(..)/g,function(d){e.push(parseInt(d,16))});return e}function toHex(){for(var d=[],d=1==arguments.length&&arguments[0].constructor==Array?arguments[0]:arguments,e="",f=0;f<d.length;f++)e+=(16>d[f]?"0":"")+d[f].toString(16);return e.toLowerCase()}var a=toNumbers("f655ba9d09a112d4968c63579db590b4"),b=toNumbers("98344c2eee86c3994890592585b49f80"),c=toNumbers("7965e114a1dccaf35af3756261f75ad8");document.cookie="__test="+toHex(slowAES.decrypt(c,2,a,b))+"; expires=Thu, 31-Dec-37 23:55:55 GMT; path=/";location.href="http://realroom.byethost24.com/medical/stokist.php?ckattempt=1";</script></body></html>
08-10 01:09:55.814: E/JSON Parser(6744): Error parsing data org.json.JSONException: Value <html><body><h2>Checking of type java.lang.String cannot be converted to JSONObject
08-10 01:09:55.816: E/AndroidRuntime(6744): FATAL EXCEPTION: AsyncTask #1
08-10 01:09:55.816: E/AndroidRuntime(6744): Process: com.example.medionline, PID: 6744
08-10 01:09:55.816: E/AndroidRuntime(6744): java.lang.RuntimeException: An error occured while executing doInBackground()
08-10 01:09:55.816: E/AndroidRuntime(6744): at android.os.AsyncTask$3.done(AsyncTask.java:304)
08-10 01:09:55.816: E/AndroidRuntime(6744): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
08-10 01:09:55.816: E/AndroidRuntime(6744): at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
08-10 01:09:55.816: E/AndroidRuntime(6744): at java.util.concurrent.FutureTask.run(FutureTask.java:242)
08-10 01:09:55.816: E/AndroidRuntime(6744): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
08-10 01:09:55.816: E/AndroidRuntime(6744): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
08-10 01:09:55.816: E/AndroidRuntime(6744): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
08-10 01:09:55.816: E/AndroidRuntime(6744): at java.lang.Thread.run(Thread.java:818)
08-10 01:09:55.816: E/AndroidRuntime(6744): Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String org.json.JSONObject.toString()' on a null object reference
08-10 01:09:55.816: E/AndroidRuntime(6744): at com.example.medionline.All_supplier_list$FetchMFG.doInBackground(All_supplier_list.java:182)
08-10 01:09:55.816: E/AndroidRuntime(6744): at com.example.medionline.All_supplier_list$FetchMFG.doInBackground(All_supplier_list.java:1)
08-10 01:09:55.816: E/AndroidRuntime(6744): at android.os.AsyncTask$2.call(AsyncTask.java:292)
08-10 01:09:55.816: E/AndroidRuntime(6744): at java.util.concurrent.FutureTask.run(FutureTask.java:237)
08-10 01:09:55.816: E/AndroidRuntime(6744): ... 4 more


This is happening to all the pages that I have hosted on byethost server, while the pages that are hosted on other server are working well and fine. I tried moving one of my file to other server and on that it is returning proper json string.

Also when I check the url in browser it is returning proper json string without any exception or error with byethost.. but in android giving html values..

Here's my JSONfunction class

package com.example.medionline;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;

public class JSONfunctions
{

static InputStream is = null;
static String result = "";
static JSONObject jArray = null;
public static JSONObject getJSONfromURL(String url)
{
// Download JSON data from URL
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
httppost.setHeader("User-Agent","Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10240 ");
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}
catch (Exception e)
{
Log.e("log_tag", "Error in http connection " + e.toString());
}

try
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
Log.e("jsonnnnnnn", line);
sb.append(line + "\n");
}
is.close();
result = sb.toString();
Log.e("result", result);
}
catch (Exception e)
{
Log.e("log_tag", "Error converting result " + e.toString());
}
try
{
jArray = new JSONObject(result);
}
catch (JSONException e)
{
Log.e("log_tag", "Error parsing data " + e.toString());
}
return jArray;
}

public static JSONObject makeHttpRequest(String loginUrl, String post, List<NameValuePair> para)
{
try
{
if(post == "POST")
{
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(loginUrl);
httpPost.setEntity(new UrlEncodedFormEntity(para));
httpPost.setHeader("User-Agent","Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10240 ");
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();

}
else if(post == "GET")
{
HttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(para, "utf-8");
loginUrl += "?" + paramString;
HttpGet httpGet = new HttpGet(loginUrl);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
}
catch (UnsupportedEncodingException e)
{
e.printStackTrace();
}
catch (ClientProtocolException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
try
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "utf-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
if (is != null)
{
while ((line = reader.readLine()) != null)
{
//Log.e("jsonnnnnnn", line);
sb.append(line + "\n");
}
is.close();
result = sb.toString();
Log.e("result", result);
}
}
catch (Exception e)
{
Log.e("Buffer Error", "Error converting result " + e.toString());
}
try
{
jArray = new JSONObject(result);
}
catch (JSONException e)
{
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
return jArray;
}
}


And this is my PHP file

<?php
include('config.php');
date_default_timezone_set("Asia/Calcutta");

$result1 = mysqli_query($con,"SELECT *
FROM `pj_medionline_mst_stockist`
ORDER BY `pj_medionline_mst_stockist`.`ID` ASC ");


$response = array();
$posts = array();
while($row=mysqli_fetch_array($result1))
{
$id =$row["ID"];
$stkcode =$row["stkcode"];
$comName =$row["ComName"];
$operatorid =$row["operatorid"];
$password =$row["Password"];


$posts[] = array('id'=>$id, 'stkcode'=>$stkcode, 'stkname'=>$comName, 'operatorid'=>$operatorid, 'password'=>$password);
}

$response['stokist'] = $posts;
print(json_encode($response));
?>

Answer

The main problem is that Byet Host implement a simple security antibots module named testcookie-nginx-module

https://kyprizel.github.io/testcookie-nginx-module/

This make your app crash