Getting HTML response instead of JSON in android
Question
I'm trying to retrieve data from mysql database located on a remote server through php into android. This worked fine while running in localhost. But when it is in remote server, I receive HTML codes instead of JSON response from server. I tried pasting the url ( http://ksos.0fees.us/pgm_list.php?day=1&hall=A ) in browser which resulted in correct JSON output. The HTML response is shown below.
<html><body>
<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("5cb1c0309e553acda177d912f21ac485");
document.cookie="__test="+toHex(slowAES.decrypt(c,2,a,b))+";
expires=Thu, 31-Dec-37 23:55:55 GMT;
path=/";
location.href="http://ksos.0fees.us/pgm_list.php?day=1&hall=A&ckattempt=1";
</script>
<noscript>This site requires Javascript to work, please enable Javascript in your browser or use a browser with Javascript support</noscript>
</body></html>
Following is my request to server for getting response
public String makeServiceCall(String url, int method, List<NameValuePair> params){
try{
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpEntity httpentity = null;
HttpResponse httpresponse = null;
if (method == POST) {
HttpPost httppost = new HttpPost(url);
httppost.setHeader("User-Agent", ua);
httppost.setHeader("Accept", "application/json");
if(params!=null){
httppost.setEntity(new UrlEncodedFormEntity(params));
}
httpresponse = httpclient.execute(httppost);
} else if(method == GET){
if(params!=null){
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
}
HttpGet httpget = new HttpGet(url);
// HttpPost httppost = new HttpPost(url);
httpget.setHeader("User-Agent", ua);
httpget.setHeader("Accept", "application/json");
httpresponse = httpclient.execute(httpget);
}
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);
// BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine())!= null) {
sb.append(line+"\n");
}
is.close();
response = sb.toString();
}catch(Exception e){
Log.e("Buffer Error", "Error : "+e.toString());
}
return response;
}
I've tried by setting and not setting setHeader for user agent. The php part looks as follows:
$q=mysql_query("SELECT ...........");
if(!empty($q)){
while($row=mysql_fetch_assoc($q))
$pgmlist[]=$row;
$response["pgmlist"] = $pgmlist;
echo json_encode($response);
}
else{
$response["success"] = 0;
$response["message"] = "No record found";
echo json_encode($response);
}
2 answers
solution1
4 2015-09-11 13:18:07
Atlast found solution...
The issue was not with the android or php part. It was the problem with the server. The hosting site which I used, sends cookies to client side which is not handled inside android but is automatically handled by browsers. I used to another hosting site where cookies are not involved and got the needed json output.
solution2
2 2018-03-26 19:56:36
I spent a long time to understand and solve the problem.
Firstly, we need to understand that 0fess hosting has anti bot technique which blocks the calls from (none-browser) clients. The main idea of this technique is using a javascript script that checks if the request is coming from a normal web browser then the script encrypts the IP and sets a cookie with key __test and value of the encrypted IP.
To solve such a problem we need to run a webview inside our application and request any page from the our 0fees site. then we can intercept the response and get the cookie. after that, we can use this cookie as a request header in our http rest requests.
This is a sample code
WebView browser=new WebView(getContext());
browser.getSettings().setJavaScriptEnabled(true);
browser.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url){
final String cookies = CookieManager.getInstance().getCookie(url);
Log.d("any", "All the cookies by me in a string:" + cookies);
HttpPost httppost = new HttpPost("http://ksos.0fees.us/pgm_list.php");
httppost.setHeader("Accept", "application/json");
httppost.setHeader("Cookie", cookies);
//continue your request paramters
}
}
);
browser.loadUrl("http://ksos.0fees.us/");
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