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PlayIntegrity API Calls: How to handle GoogleServerUnavailable Error

I am developing an Android security app and have decided to implement the PlayIntegrity API as an alternative to SafetyNet API. I have already completed the necessary setup steps such as enabling the Play and Cloud console, however, I am encountering an issue where I am getting an error 'GOOGLE SERVER UNAVAILABLE' when trying to obtain a token. Can anyone provide any insight into why this might be happening and possible solutions? Any help would be greatly appreciated.
Please see below code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// playIntegritySetup.lol();
getToken();
}
private void getToken() {
String nonce = Base64.encodeToString(generateNonce(50).getBytes(), Base64.URL_SAFE | Base64.NO_WRAP | Base64.NO_PADDING);
// Create an instance of a manager.
IntegrityManager integrityManager = IntegrityManagerFactory.create(getApplicationContext());
// Request the integrity token by providing a nonce.
Task<IntegrityTokenResponse> integrityTokenResponse = integrityManager.requestIntegrityToken(
IntegrityTokenRequest.builder()
.setNonce(nonce)
.build());
integrityTokenResponse.addOnSuccessListener(new OnSuccessListener<IntegrityTokenResponse>() {
#Override
public void onSuccess(IntegrityTokenResponse integrityTokenResponse) {
String integrityToken = integrityTokenResponse.token();
SplashActivity.this.doIntegrityCheck(integrityToken);
Log.e("Integrity Token", "integrity token from the app" + integrityToken);
}
});
integrityTokenResponse.addOnFailureListener(e -> showErrorDialog("Error getting token from Google. Google said: " + getErrorText(e)));
}
private void doIntegrityCheck(String token) {
AtomicBoolean hasError = new AtomicBoolean(false);
Observable.fromCallable(() -> {
OkHttpClient okHttpClient = new OkHttpClient();
Response response = okHttpClient.newCall(new Request.Builder().url("money control url" + "token from backend server" + token).build()).execute();
Log.e("Token", "token from the app" + token);
if (!response.isSuccessful()) {
hasError.set(true);
return "Api request error. Code: " + response.code();
}
ResponseBody responseBody = response.body();
if (responseBody == null) {
hasError.set(true);
return "Api request error. Empty response";
}
JSONObject responseJson = new JSONObject(responseBody.string());
if (responseJson.has("error")) {
hasError.set(true);
return "Api request error: " + responseJson.getString("error");
}
if (!responseJson.has("deviceIntegrity")) {
hasError.set(true);
}
return responseJson.getJSONObject("deviceIntegrity").toString();
}) // Execute in IO thread, i.e. background thread.
.subscribeOn(Schedulers.io())
// report or post the result to main thread.
.observeOn(AndroidSchedulers.mainThread())
// execute this RxJava
.subscribe(new Observer<String>() {
#Override
public void onSubscribe(Disposable d) {
}
#Override
public void onNext(String result) {
if (hasError.get()) {
if (result.contains("MEETS_DEVICE_INTEGRITY") && result.contains("MEETS_BASIC_INTEGRITY")) {
//Here goes my other code
}
}
}
#Override
public void onError(Throwable e) {
}
#Override
public void onComplete() {
}
});
}
private String getErrorText(Exception e) {
String msg = e.getMessage();
if (msg == null) {
return "Unknown Error";
}
//the error code
int errorCode = Integer.parseInt(msg.replaceAll("\n", "").replaceAll(":(.*)", ""));
switch (errorCode) {
case IntegrityErrorCode.API_NOT_AVAILABLE:
return "API_NOT_AVAILABLE";
case IntegrityErrorCode.NO_ERROR:
return "NO_ERROR";
case IntegrityErrorCode.INTERNAL_ERROR:
return "INTERNAL_ERROR";
case IntegrityErrorCode.NETWORK_ERROR:
return "NETWORK_ERROR";
case IntegrityErrorCode.PLAY_STORE_NOT_FOUND:
return "PLAY_STORE_NOT_FOUND";
case IntegrityErrorCode.PLAY_STORE_ACCOUNT_NOT_FOUND:
return "PLAY_STORE_ACCOUNT_NOT_FOUND";
case IntegrityErrorCode.APP_NOT_INSTALLED:
return "APP_NOT_INSTALLED";
case IntegrityErrorCode.PLAY_SERVICES_NOT_FOUND:
return "PLAY_SERVICES_NOT_FOUND";
case IntegrityErrorCode.APP_UID_MISMATCH:
return "APP_UID_MISMATCH";
case IntegrityErrorCode.TOO_MANY_REQUESTS:
return "TOO_MANY_REQUESTS";
case IntegrityErrorCode.CANNOT_BIND_TO_SERVICE:
return "CANNOT_BIND_TO_SERVICE";
case IntegrityErrorCode.NONCE_TOO_SHORT:
return "NONCE_TOO_SHORT";
case IntegrityErrorCode.NONCE_TOO_LONG:
return "NONCE_TOO_LONG";
case IntegrityErrorCode.GOOGLE_SERVER_UNAVAILABLE:
return "GOOGLE_SERVER_UNAVAILABLE";
case IntegrityErrorCode.NONCE_IS_NOT_BASE64:
return "NONCE_IS_NOT_BASE64";
default:
return "Unknown Error";
}
}
private String generateNonce(int length) {
String nonce = "";
String allowed = getNonce();
for (int i = 0; i < length; i++) {
nonce = nonce.concat(String.valueOf(allowed.charAt((int) Math.floor(Math.random() * allowed.length()))));
}
return nonce;
}
public native String getNonce();
static {
System.loadLibrary("all-keys");
}

I ran into the same problem and I found a solution for this.
You need to specify cloudProjectNumber() when you are working on outside of Google Play, which can be found in google cloud console.
Quote from the doc:
Important: In order to receive and decrypt Integrity API responses,
apps not available on Google Play need to include their Cloud project
number in their requests. You can find this in Project info in the
Google Cloud Console.
So the code should be like this:
IntegrityTokenRequest.builder()
.setNonce(nonce)
.cloudProjectNumber(100004676) // your cloud project number here for dev build
.build());

PHP if-else bodies both executing

I'm a beginner in PHP and i've got this code where both if and else parts are executed in the same "run". I know it's logically impossible but that's what I'm getting.
Here's my PHP Code:
<?php
require_once 'create_request_form.php';
$db = new create_request_form();
// json response array
$response = array("error" => FALSE);
if (isset($_POST['rqTitle']) && isset($_POST['rqMname']) && isset($_POST['rqUname']) && isset($_POST['rqBranch']) && isset($_POST['rqText']) && isset($_POST['rqMinPrice']) && isset($_POST['rqMaxPrice']) && isset($_POST['rqImage']) && isset($_POST['rqCategory']) && isset($_POST['rqDateTime'])) {
// receiving the post params
$rqTitle = $_POST['rqTitle'];
$rqMname = $_POST['rqMname'];
$rqUname = $_POST['rqUname'];
$rqBranch = $_POST['rqBranch'];
$rqText = $_POST['rqText'];
$rqMinPrice = $_POST['rqMinPrice'];
$rqMaxPrice = $_POST['rqMaxPrice'];
$rqImage = $_POST['rqImage'];
$rqCategory = $_POST['rqCategory'];
$rqDateTime = $_POST['rqDateTime'];
// check if there is a request with the same title
if ($db->checkReqTitle($rqTitle)) {
// Request already exists
$response["error"] = TRUE;
$response["error_msg"] = "Request already exists with the title: " . $rqTitle;
echo json_encode($response);
} else {
// create a new request
$request = $db->StoreReqInfo($rqTitle, $rqMname, $rqUname, $rqBranch, $rqText, $rqMinPrice, $rqMaxPrice, $rqImage, $rqCategory, $rqDateTime);
if ($request) {
// request stored successfully
$response["error"] = FALSE;
$response["request"]["rqTitle"] = $request["rqTitle"];
$response["request"]["rqMname"] = $request["rqMname"];
$response["request"]["rqUname"] = $request["rqUname"];
$response["request"]["rqBranch"] = $request["rqBranch"];
$response["request"]["rqText"] = $request["rqText"];
$response["request"]["rqMinPrice"] = $request["rqMinPrice"];
$response["request"]["rqMaxPrice"] = $request["rqMaxPrice"];
$response["request"]["rqImage"] = $request["rqImage"];
$response["request"]["rqCategory"] = $request["rqCategory"];
$response["request"]["rqDateTime"] = $request["rqDateTime"];
echo json_encode($response);
} else {
// request failed to store
$response["error"] = TRUE;
$response["error_msg"] = "An error occurred while creating the request. Please try again.";
echo json_encode($response);
}
}
} else {
$response["error"] = TRUE;
$response["error_msg"] = "Required parameter is missing!";
echo json_encode($response);
}
?>
The required behavior (storing data in the database) is all performed well but the $response I'm getting is the error string i've assigned to when a request title already exists instead of the JSON formatted array of the stored request (Both if and else bodies are executed but i get the result of if body as a response).
A screenshot of the $response using Postman to send the request:
A screenshot from my Samsung Galaxy Note 3:
I'm also using Galaxy Note 4 for testing and it just shows me a blank Toast message and doesn't start the intent(doesn't move to home screen).
So far the only possible explanation is that the script is being executed twice, however I can't find anywhere that called it a second time.
This is the java code responsible for sending a request with required paramters to the php script above.
private void storeRequest(final String rTitle, final String rMname, final String rUname,
final String rBranch, final String rText, final String rMinPrice,
final String rMaxPrice, final String imagePath, final String rCategory) {
// Tag used to cancel the request
String cancel_req_tag = "request";
//A progress dialog message to let the user know they are being registered
progressDialog.setMessage("Please wait while we add your request...");
showDialog();
//creating a StringRequest to send the registration info to the script
// at the server for processing
StringRequest strReq = new StringRequest(Request.Method.POST,
URL_FOR_REQUEST, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d(TAG, "Request Response: " + response.toString());
hideDialog();
try { //json objects must be surrounded by try catch statement
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
if (!error) { // error is set to false, meaning no error
// Launch home activity
Intent intent = new Intent(CreateRequestActivity.this, HomeActivity.class);
startActivity(intent);
finish();
} else {
String errorMsg = jObj.getString("error_msg");
Toast.makeText(CreateRequestActivity.this, errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Error: " + error.getMessage());
Toast.makeText(CreateRequestActivity.this,
error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
#Override
protected Map<String, String> getParams() {
// Posting params to register url
Map<String, String> params = new HashMap<String, String>();
params.put("rqTitle", rTitle);
params.put("rqText", rText);
params.put("rqMname", rMname);
params.put("rqUname", rUname);
params.put("rqBranch", rBranch);
params.put("rqMinPrice", rMinPrice);
params.put("rqMaxPrice", rMaxPrice);
params.put("rqImage", imagePath);
params.put("rqCategory", rCategory);
params.put("rqDateTime", DateFormat.getDateTimeInstance().format(new Date()));
return params;
}
};
// Adding request to request queue
AppSingleton.getInstance(getApplicationContext()).addToRequestQueue(strReq, cancel_req_tag);
}
Any ideas?
Thanks in advance!

So turns out the problem stemmed from the Java code and not PHP (poor PHP ;P). More accurately, Volley requests have a problem with request timeouts, especially when sending requests using POST method.
So what worked for me was adding this line right before adding the request to the queue:
strReq.setRetryPolicy(new DefaultRetryPolicy(0, -1, 0));
*Replace strReq with your request name. Basically what this line does is that it prevents volley from sending a duplicate request when the first request takes too long.
The original & more datailed answer:
The DefaultRetryPolicy.class's hasAttemptRemaining() class looks like this:
protected boolean hasAttemptRemaining() {
return this.mCurrentRetryCount <= this.mMaxNumRetries;
}
From what I can see, setting the maxNumRetries to 0 will still make that return true if it hasn't done a retry yet.
I fixed it with a
request.setRetryPolicy(new DefaultRetryPolicy(0, -1, 0);
Source: Android Volley makes 2 requests to the server when retry policy is set to 0

Angular JS - How to get spring returned map value inside angular controller?

I am new to angular, can anyone tell me how to retrieve spring returned map value inside angular's controller?
Here is my code snippet:
app.js
// Service -----------------------------------------------------------------
myApp.service('FolderService', function ($log, $resource, $http) {
return {
onlineView: function(docId) {
var viwerResource = $resource('processOnlineView', {}, {
get: {method: 'POST', params: {'docId' : docId}}
});
return viwerResource.get();
}
}
})
// Controller -----------------------------------------------------------------
.controller('FolderController', function ($scope, $log, FolderService) {
//click online view
$scope.view = function(doc) {
var rtnMap = FolderService.onlineView(doc.cmObjectId);
console.log('rtnMap: ' + rtnMap );
// it shows rtnMap: [object Object]
var key = 'response';
var value = rtnMap[key];
console.log('value: ' + value );
// I want to get map value, but it shows undefined
// I except get "d:/tomcat/bin/hello.swf" here
$scope.rtnFileName = rtnMap;
}
});
my spring controller java code
#RequestMapping(value = "/processOnlineView", method = RequestMethod.POST)
public #ResponseBody Map<String, String> processOnlineView(#RequestParam(value = "docId") String docId) {
String resultDocName = "";
try {
// get File by docId
File file = queryFile(docId);
// set resultDocName value
resultDocName = file.getAbsolutePath(); // real file path, like: d:/tomcat/bin/hello.swf
} catch (Exception e) {
e.printStackTrace();
}
return Collections.singletonMap("response", resultDocName);
}
chrome log:
I can get expect value in html by using this:
rtnFileName: {{rtnFileName.response}}
html shows:
rtnFileName: d:/tomcat/bin/hello.swf
But how to get map value in angular controller directly?
Any suggestion would be appreciated.

Problem solved.
First, use $http post instead of $resource:
onlineView: function(docId) {
$http({
method: 'POST',
url: urlBase + '/processOnlineView',
params: {
docId: docId
}
})
.success(function(data, status, headers, config) {
console.log('success data: ' + data); // result: success data: [object Object]
for (key in data){
console.log('>> data key: ' + key );
console.log('>> data value: ' + data[key] );
}
var resultDocName = data['response'];
console.log('resultDocName: ' + resultDocName);
runFlexpaper(resultDocName);
})
.error(function(data, status, headers, config) {
});
}
Second, retrieve returned map inside 'success' block, because $http post is asynchronous call.

Use a service. For example:
var app = angular.module('myApp', [])
app.service('sharedProperties', function () {
var mapCoord= 'Test';
return {
getProperty: function () {
return mapCoord;
},
setProperty: function(value) {
mapCoord= value;
}
};
});
Inside your Main controller
app.controller('Main', function($scope, sharedProperties) {
$scope.mapCoord= sharedProperties.setProperty("Main");
});
Inside your Map controller
app.controller('Map', function($scope, sharedProperties) {
$scope.mapCoord= sharedProperties.getProperty();
});

Getting "502 bad gateway: request endpoint unable to handle" while validating the password

Am getting above error while validating the password in node.js and sending the response to android client.
Can anyone check my validation code is correct or not?
var queryData = url.parse(request.url, true).query;
var Email = queryData.email;
var Password = queryData.passwd;
ibmdb.open(dbConnection, function(err, conn) {
if (err) {
response.send("error occurred " + err.message);
}
else {
console.log('before select');
conn.query("SELECT PASSWORD FROM USER02130.USER_DETAILS123 WHERE SHORT_ID='"+Email+"'", function(err, rows, moreResultSets) {
if ( !err ) {
var valid = rows.JSON();
if (valid.PASSWORD==Password) {
response.write("Successful login");
}
else {
response.write("Invalid Password");
}
}
else {
response.write("error occurred " + err.message);
}
response.end();
});
}
})

please have a look at this below link http://pcsupport.about.com/od/findbyerrormessage/a/502error.htm

Why does my call to get using Play!'s WSRequestHolder make parts of my code not run?

WS.WSRequestHolder request = WS.url(url);
logger.info("1")
final Promise<Result> resultPromise = request.get().map(
new Function<WS.Response, Result>() {
public Result apply(WS.Response response) {
logger.info("2");
try {
logger.info("3");
return ok(response.asJson());
} catch(Exception e) {
logger.info("4");
logger.error(e.getMessage());
return status(response.getStatus());
}
}
}
);
logger.info("5");
return resultPromise;
For one particular URL, my code never enters the try/catch statement- it logs at point 1 and 5 though- what does this mean? That url hasn't returned anything yet? It works with other urls even if they return 400s or cause exceptions because of the format.
I've also tried to simplify it using:
WS.WSRequestHolder request = WS.url(url);
final WS.Response resultPromise = request.get().get();
logger.info("Before result");
logger.info("Res = " + resultPromise.getBody());
logger.info("Before result");
return null;
I don't see any of those lines logged with that particular URL. It worked with a URL where resultPromise.getBody() was empty