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());
Related
I try to use Google Consent with the User Messaging Platform to show in Android app consent form. I follow this documentation https://developers.google.com/admob/ump/android/quick-start.
I get this error:
onConsentInfoUpdateFailure: Publisher misconfiguration: Failed to read publisher's account configuration; please check your configured app ID. Received app ID: `ca-app-pub-XXXXXXXXXXXXXXXX~XXXXXXXXXX`.
My Code:
ConsentRequestParameters params;
if (testingGDPR) {
ConsentDebugSettings debugSettings = new ConsentDebugSettings.Builder(this)
.setDebugGeography(ConsentDebugSettings.DebugGeography.DEBUG_GEOGRAPHY_EEA)
.addTestDeviceHashedId(getString(R.string.ADMOB_REAL_DEVICE_HASH_ID_FOR_TESTING))
.build();
params = new ConsentRequestParameters.Builder().setConsentDebugSettings(debugSettings).build();
} else {
params = new ConsentRequestParameters.Builder().build();
}
consentInformation = UserMessagingPlatform.getConsentInformation(this);
if (testingGDPR) {
consentInformation.reset();
}
consentInformation.requestConsentInfoUpdate(
this,
params,
new ConsentInformation.OnConsentInfoUpdateSuccessListener() {
#Override
public void onConsentInfoUpdateSuccess() {
if (consentInformation.isConsentFormAvailable() && consentInformation.getConsentStatus() == ConsentInformation.ConsentStatus.REQUIRED) {
loadForm();
} else {
setupAds();
}
}
},
new ConsentInformation.OnConsentInfoUpdateFailureListener() {
#Override
public void onConsentInfoUpdateFailure(FormError formError) {
Log.d("gdpr", "onConsentInfoUpdateFailure, code:" + formError.getErrorCode() + ", " + formError.getMessage());
}
});
The TestDeviceHashedId is not the same thing as the Admob Device Id.
So remove this line:
.addTestDeviceHashedId(getString(R.string.ADMOB_REAL_DEVICE_HASH_ID_FOR_TESTING))
Then run your code and check for the log. The TestDeviceHashedId you should use will appear.
As I know that the ViewModel should be secluded from the UI/View and contains only the logic that observes the data that's coming from the server or database
In my App, I used REST API "retrofit" and blogger API and I tried to migrate/upgrade the current code to MVVM but there are a few problems, let's go to the code
BloggerAPI Class
public class BloggerAPI {
private static final String BASE_URL =
"https://www.googleapis.com/blogger/v3/blogs/4294497614198718393/posts/";
private static final String KEY = "the Key";
private PostInterFace postInterFace;
private static BloggerAPI INSTANCE;
public BloggerAPI() {
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
postInterFace = retrofit.create(PostInterFace.class);
}
public static String getBaseUrl() {
return BASE_URL;
}
public static String getKEY() {
return KEY;
}
public static BloggerAPI getINSTANCE() {
if(INSTANCE == null){
INSTANCE = new BloggerAPI();
}
return INSTANCE;
}
public interface PostInterFace {
#GET
Call<PostList> getPostList(#Url String url);
}
public Call<PostList>getPosts(String url){
return postInterFace.getPostList(url);
}
}
this getData method I used in the Mainctivity to retrieve blog posts
public void getData() {
if (getItemsByLabelCalled) return;
progressBar.setVisibility(View.VISIBLE);
String url = BloggerAPI.getBaseUrl() + "?key=" + BloggerAPI.getKEY();
if (token != "") {
url = url + "&pageToken=" + token;
}
if (token == null) {
return;
}
final Call<PostList> postList = BloggerAPI.getINSTANCE().getPosts(url);
postList.enqueue(new Callback<PostList>() {
#Override
public void onResponse(#NonNull Call<PostList> call, #NonNull Response<PostList> response) {
if (response.isSuccessful()) {
progressBar.setVisibility(View.GONE);
PostList list = response.body();
Log.d(TAG, "onResponse: " + response.body());
if (list != null) {
token = list.getNextPageToken();
items.addAll(list.getItems());
adapter.notifyDataSetChanged();
for (int i = 0; i < items.size(); i++) {
items.get(i).setReDefinedID(i);
}
if (sqLiteItemsDBHelper == null || sqLiteItemsDBHelper.getAllItems().isEmpty()) {
SaveInDatabase task = new SaveInDatabase();
Item[] listArr = items.toArray(new Item[0]);
task.execute(listArr);
}
}
} else {
progressBar.setVisibility(View.GONE);
recyclerView.setVisibility(View.GONE);
emptyView.setVisibility(View.VISIBLE);
int sc = response.code();
switch (sc) {
case 400:
Log.e("Error 400", "Bad Request");
break;
case 404:
Log.e("Error 404", "Not Found");
break;
default:
Log.e("Error", "Generic Error");
}
}
}
#Override
public void onFailure(#NonNull Call<PostList> call, #NonNull Throwable t) {
Toast.makeText(MainActivity.this, "getData error occured", Toast.LENGTH_LONG).show();
Log.e(TAG, "onFailure: " + t.toString());
Log.e(TAG, "onFailure: " + t.getCause());
progressBar.setVisibility(View.GONE);
recyclerView.setVisibility(View.GONE);
emptyView.setVisibility(View.VISIBLE);
}
});
}
I created the PostsViewModel to trying to think practically how to migrate the current code to use MVVM
public class PostsViewModel extends ViewModel {
public MutableLiveData<PostList> postListMutableLiveData = new MutableLiveData<>();
public void getData() {
String token = "";
// if (getItemsByLabelCalled) return;
// progressBar.setVisibility(View.VISIBLE);
String url = BloggerAPI.getBaseUrl() + "?key=" + BloggerAPI.getKEY();
if (token != "") {
url = url + "&pageToken=" + token;
}
if (token == null) {
return;
}
BloggerAPI.getINSTANCE().getPosts(url).enqueue(new Callback<PostList>() {
#Override
public void onResponse(Call<PostList> call, Response<PostList> response) {
postListMutableLiveData.setValue(response.body());
}
#Override
public void onFailure(Call<PostList> call, Throwable t) {
}
});
}
}
and it's used thus in MainActivity
postsViewModel = ViewModelProviders.of(this).get(PostsViewModel.class);
postsViewModel.postListMutableLiveData.observe(this, postList -> {
items.addAll(postList.getItems());
adapter.notifyDataSetChanged();
});
now there are two problems using this way of MVVM "ViewModel"
first in the current getData method in the MainActivity it's contains some components that should work only in the View layer like the items list, the recyclerView needs to set View.GONE in case of response unsuccessful, progressBar, emptyView TextView, the adapter that needs to notify if there are changes in the list, and finally I need the context to used the create the Toast messages.
To solve this issue I think to add the UI components and other things into the ViewModel Class and create a constructor like this
public class PostsViewModel extends ViewModel {
Context context;
List<Item> itemList;
PostAdapter postAdapter;
ProgressBar progressBar;
TextView textView;
public PostsViewModel(Context context, List<Item> itemList, PostAdapter postAdapter, ProgressBar progressBar, TextView textView) {
this.context = context;
this.itemList = itemList;
this.postAdapter = postAdapter;
this.progressBar = progressBar;
this.textView = textView;
}
but this is not logically with MVVM arch and for sure cause memory leaking also I will not be able to create the instance of ViewModel with regular way like this
postsViewModel = ViewModelProviders.of(this).get(PostsViewModel.class);
postsViewModel.postListMutableLiveData.observe(this, postList -> {
items.addAll(postList.getItems());
adapter.notifyDataSetChanged();
});
and must be used like this
postsViewModel = new PostsViewModel(this,items,adapter,progressBar,emptyView);
so the first question is How to bind these UI components with the ViewModel?
second in the current getata I used the SaveInDatabase class use the AsyncTask way to save all items in the SQLite database the second question is How to move this class to work with ViewModel? but it also needs to work in the View layer to avoid leaking
the SaveInDatabase Class
static class SaveInDatabase extends AsyncTask<Item, Void, Void> {
#Override
protected Void doInBackground(Item... items) {
List<Item> itemsList = Arrays.asList(items);
// runtimeExceptionDaoItems.create(itemsList);
for (int i = 0 ; i< itemsList.size();i++) {
sqLiteItemsDBHelper.addItem(itemsList.get(i));
Log.e(TAG, "Size :" + sqLiteItemsDBHelper.getAllItems().size());
}
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
}
}
Actually the question is too broad to answer because there are many ways to implement for this case. First of all, never pass view objects to viewModel. ViewModel is used to notify changes to ui layer with LiveData or rxJava without retaining the view instance. You may try this way.
class PostViewModel extends ViewModel {
private final MutableLiveData<PostList> postListLiveData = new MutableLiveData<PostList>();
private final MutableLiveData<Boolean> loadingStateLiveData = new MutableLiveData<Boolean>();
private String token = "";
public void getData() {
loadingStateLiveData.postValue(true);
// if (getItemsByLabelCalled) return;
// progressBar.setVisibility(View.VISIBLE);
String url = BloggerAPI.getBaseUrl() + "?key=" + BloggerAPI.getKEY();
if (token != "") {
url = url + "&pageToken=" + token;
}
if (token == null) {
return;
}
BloggerAPI.getINSTANCE().getPosts(url).enqueue(new Callback<PostList>() {
#Override
public void onResponse(Call<PostList> call, Response<PostList> response) {
loadingStateLiveData.postValue(false);
postListLiveData.setValue(response.body());
token = response.body().getNextPageToken(); //===> the token
}
#Override
public void onFailure(Call<PostList> call, Throwable t) {
loadingStateLiveData.postValue(false);
}
});
}
public LiveData<PostList> getPostListLiveData(){
return postListLiveData;
}
public LiveData<Boolean> getLoadingStateLiveData(){
return loadingStateLiveData;
}
}
and you may observe the changes from your activity like this.
postsViewModel = ViewModelProviders.of(this).get(PostsViewModel.class);
postsViewModel.getPostListLiveData().observe(this,postList->{
if(isYourPostListEmpty(postlist)) {
recyclerView.setVisibility(View.GONE);
emptyView.setVisibility(View.VISIBLE);
items.addAll(postList.getItems());
adapter.notifyDataSetChanged();
}else {
recyclerView.setVisibility(View.VISIBLE);
emptyView.setVisibility(View.GONE);
}
});
postsViewModel.getLoadingStateLiveData().observe(this,isLoading->{
if(isLoading) {
progressBar.setVisibility(View.VISIBLE);
}else {
progressBar.setVisibility(View.GONE);
}
});
For my personal prefer, I like using Enum for error handling, but I can't post here as it will make the answer very long. For your second question, use Room from google. It will make you life a lot easier. It work very well with mvvm and it natively support liveData. You can try CodeLab from google to practise using room.
Bonus: You don't need to edit the url like this:
String url = BloggerAPI.getBaseUrl() + "?key=" + BloggerAPI.getKEY();
if (token != "") {
url = url + "&pageToken=" + token;
}
You can use #Path or #query based on your requirements.
As your question is bit broad , I am not giving any source code for the same, Rather mentioning samples which clearly resolves issues mentioned with MVVM.
Clean Code Architecture can be followed which will clearly separate the responsibilities of each layer.
First of all application architecture needs to be restructured so that each layer has designated role in MVVM. You can follow the following pattern for the same.
Only View Model will have access to UI layer
View model will connect with Use Case layer
Use case layer will connect with Data Layer
No layer will have cyclic reference to other components.
So now for Database, Repository will decide, from which section the data needs to be fetched
This can be either from Network or from DataBase.
All these points (except Database part) are covered over Medium Article, were each step is covered with actual API's .
Along with that unit test is also covered.
Libraries used are in this project are
Coroutines
Retrofit
Koin (Dependency Injection) Can be replaced with dagger2 is required
MockWebServer (Testing)
Language: Kotlin
Full Source code can be found over Github
Edit
Kotlin is the official supported language for Android Development now. I suggest you should lean and migrate your java android projects to Kotlin.
Still for converting Kotlin to Java, Go to Menu > Tools > Kotlin > Decompile Kotlin to Java Option
I would like to add some keywords to my app, so the API can recognize more efficiently the spoken words.
For example Im having trouble recognizing the some Italian words that starts with E ,(E` per me) for example. Or in German (er geht).
Here is my code:
public void recognize (int sampleRate) {
if (mApi == null) {
Log.w(TAG, "API not ready. Ignoring the request.");
return;
}
// Configure the API
mRequestObserver = mApi.streamingRecognize(mResponseObserver);
mRequestObserver.onNext(StreamingRecognizeRequest.newBuilder()
.setStreamingConfig(StreamingRecognitionConfig.newBuilder()
.setConfig(RecognitionConfig.newBuilder()
.setLanguageCode(getDefaultLanguageCode())
.setEncoding(RecognitionConfig.AudioEncoding.LINEAR16)
.setSampleRateHertz(sampleRate)
.build())
.setInterimResults(true)
.setSingleUtterance(true)
.build())
.build());
}
Setting the language for different cases :
private String getDefaultLanguageCode() {
SharedPreferences getLangSharedPrefs = getSharedPreferences("langSelected",0);
String selectedLanguage = getLangSharedPrefs.getString("langSelected", null);
switch (selectedLanguage) {
case "German":
langaugeCode = "de-DE";
break;
case "Italian":
langaugeCode = "it-IT";
break;
case "Spanish" :
langaugeCode = "es-ES";
break;
case "French" :
langaugeCode = "fr-FR";
break;
}
return langaugeCode;
}
I found the solution :
public void startRecognizing(int sampleRate) {
if (mApi == null) {
Log.w(TAG, "API not ready. Ignoring the request.");
return;
}
// Configure the API
mRequestObserver = mApi.streamingRecognize(mResponseObserver);
SpeechContext.Builder speechBuilder = SpeechContext.newBuilder();
speechBuilder.addPhrases("E per me");
speechBuilder.addPhrases("E");
mRequestObserver.onNext(StreamingRecognizeRequest.newBuilder()
.setStreamingConfig(StreamingRecognitionConfig.newBuilder()
.setConfig(RecognitionConfig.newBuilder()
.setLanguageCode(getDefaultLanguageCode())
.setEncoding(RecognitionConfig.AudioEncoding.LINEAR16)
.setSampleRateHertz(sampleRate)
.addSpeechContexts(speechBuilder)
.build())
.setInterimResults(true)
.setSingleUtterance(true)
.build())
.build());
}
I have created a .NET backend Mobile Service on Windows Azure using the code sample provided on the website article.
Now I am trying to register a user with android client but I can't.
My backend registration control looks like below;
[AuthorizeLevel(AuthorizationLevel.Anonymous)]
public class CustomRegistrationController : ApiController
{
public ApiServices Services { get; set; }
// POST api/CustomRegistration
public HttpResponseMessage Post(RegistrationRequest registrationRequest)
{
if (!Regex.IsMatch(registrationRequest.username, "^[a-zA-Z0-9]{4,}$"))
{
return this.Request.CreateResponse(HttpStatusCode.BadRequest, "Invalid username (at least 4 chars, alphanumeric only)");
}
else if (registrationRequest.password.Length < 8)
{
return this.Request.CreateResponse(HttpStatusCode.BadRequest, "Invalid password (at least 8 chars required)");
}
hadContext context = new hadContext();
Account account = context.Accounts.Where(a => a.Username == registrationRequest.username).SingleOrDefault();
if (account != null)
{
return this.Request.CreateResponse(HttpStatusCode.BadRequest, "Username already exists");
}
else
{
byte[] salt = CustomLoginProviderUtils.generateSalt();
Account newAccount = new Account
{
Id = Guid.NewGuid().ToString(),
Username = registrationRequest.username,
Salt = salt,
SaltedAndHashedPassword = CustomLoginProviderUtils.hash(registrationRequest.password, salt)
};
context.Accounts.Add(newAccount);
context.SaveChanges();
return this.Request.CreateResponse(HttpStatusCode.Created);
}
}
}
I wrote this code on android client app
public void register(View view) {
if ( txtUsername.getText().toString().equals("")
&& txtPassword.getText().toString().equals(""))
{
Log.w(TAG,"tüm alanları girmen gerek");
return;
}
else
{
RegistrationRequest register = new RegistrationRequest();
register.setUsername(txtUsername.getText().toString());
register.setPassword(txtUsername.getText().toString());
mClient.invokeApi("CustomRegistration",register,RegistrationRequest.class,
new ApiOperationCallback<RegistrationRequest>() {
#Override
public void onCompleted(RegistrationRequest result, Exception exception, ServiceFilterResponse response) {
if (exception==null)
{
Log.w(TAG,"kayıt başarılı");
}
else
{
Log.w(TAG,"kayıt başarısız " +exception);
}
}
});
}
}
It's not working. How should I do for registration.
i already found out how to post something to a wall with the graph api on behalf of the facebook user. But now i want to post something in the name of my application.
Here is how i'm trying to do this:
protected void btn_submit_Click(object sender, EventArgs e)
{
Dictionary<string, string> data = new Dictionary<string, string>();
data.Add("message", "Testing");
// i'll add more data later here (picture, link, ...)
data.Add("access_token", FbGraphApi.getAppToken());
FbGraphApi.postOnWall(ConfigSettings.getFbPageId(), data);
}
FbGraphApi.getAppToken()
// ...
private static string graphUrl = "https://graph.facebook.com";
//...
public static string getAppToken() {
MyWebRequest req = new MyWebRequest(graphUrl + "/" + "oauth/access_token?type=client_cred&client_id=" + ConfigSettings.getAppID() + "&client_secret=" + ConfigSettings.getAppSecret(), "GET");
return req.GetResponse().Split('=')[1];
}
FbGraphApi.postOnWall()
public static void postOnWall(string id, Dictionary<string,string> args)
{
call(id, "feed", args);
}
FbGraphApi.call()
private static void call(string id, string method, Dictionary<string,string> args )
{
string data = "";
foreach (KeyValuePair<string, string> arg in args)
{
data += arg.Key + "=" + arg.Value + "&";
}
MyWebRequest req = new MyWebRequest(graphUrl +"/" + id + "/" + method, "POST", data.Substring(0, data.Length - 1));
req.GetResponse(); // here i get: "The remote server returned an error: (403) Forbidden."
}
Does anyone see where this i going wrong? I'm really stuck on this.
Thanks!
You need to obtain the Auth Token for your application to post as that application.
The Auth_Token defines the security context you are posting as.
You would need to request the following Graph API URL, for the current user, to find the access token for your application.
https://graph.facebook.com/me/accounts?access_token=XXXXXXXX
This should give you an output similar to the following:
{
"data": [
{
"name": "My App",
"category": "Application",
"id": "10258853",
"access_token": "xxxxxxxxxxxxxxxx"
}
]
}
Be sure you have the manage_pages permission before calling that API or your will not get the access token back.
Once you have the Access Token you publish to the wall like you would any other user. Note that the ID used in the URL matches the ID of the application. This will post to the Application's wall as the Application.
https://graph.facebook.com/10258853/feed?access_token=XXXXXXX
Be sure you have the publish_stream permission as well before posting to the wall.
Recently I had worked With FB api's.
I had Done every thing in javascript.
Here is what i used to post to a users wall.
I hope this helps you.
Include the javascript library provided by FB and add your app id to it.
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: 'your app id', status: true, cookie: true,
xfbml: true});
};
(function() {
var e = document.createElement('script');
e.type = 'text/javascript';
e.src = document.location.protocol +
'//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
</script>
For login , i used a button with "fb_login" as id and then i used jquery as follows:
$("#fb_login").click(function(){
FB.login(function(response) {
if (response.session)
{
if (response.perms)
{
// alert("Logged in and permission granted for posting");
}
else
{
// alert("Logged in but permission not granted for posting");
}
}
else
{
//alert("Not Logged In");
}
}, {perms:'publish_stream'});
Note that You have to add {perms:'publish_stream'} as done above which will obtain you the rights to post to the users wall.
A button with id="stream_publish" and then the following jquery:
$("#stream_publish").click(function(){
FB.getLoginStatus(function(response){
if(response.session)
{
publishPost(response.session);
}
});
});
function publishPost(session)
{
var publish = {
method: 'stream.publish',
message: 'Your Message',
picture : 'Image to be displayed',
link : 'The link that will be the part of the post, which can point to either your app page or your personal page or any other page',
name: 'Name or title of the post',
caption: 'Caption of the Post',
description: 'It is fun to write Facebook App!',
actions : { name : 'Start Learning', link : 'link to the app'}
};
FB.api('/me/feed', 'POST', publish, function(response) {
document.getElementById('confirmMsg').innerHTML =
'A post had just been published into the stream on your wall.';
});
};
private class FbWebViewClient extends WebViewClient {
boolean started=false;
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.d("Facebook-WebView", "Redirect URL: " + url);
if (url.startsWith(Facebook.REDIRECT_URI)) {
Bundle values = Util.parseUrl(url);
String error = values.getString("error");
if (error == null) {
error = values.getString("error_type");
}
if (error == null) {
mListener.onComplete(values);
} else if (error.equals("access_denied")
|| error.equals("OAuthAccessDeniedException")) {
mListener.onCancel();
} else {
mListener.onFacebookError(new FacebookError(error));
}
FbDialog.this.dismiss();
return true;
} else if (url.startsWith(Facebook.CANCEL_URI)) {
mListener.onCancel();
FbDialog.this.dismiss();
return true;
} else if (url.contains(DISPLAY_STRING)) {
return false;
}
// launch non-dialog URLs in a full browser
getContext().startActivity(
new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
return true;
}
#Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
super.onReceivedError(view, errorCode, description, failingUrl);
mListener.onError(new DialogError(description, errorCode,
failingUrl));
FbDialog.this.dismiss();
}
public Map<String, String> getUrlParameters(String url)
throws UnsupportedEncodingException {
Map<String, String> params = new HashMap<String, String>();
String[] urlParts = url.split("\\?");
if (urlParts.length > 1) {
String query = urlParts[1];
for (String param : query.split("&")) {
String pair[] = param.split("=");
String key = URLDecoder.decode(pair[0], "UTF-8");
String value = "";
if (pair.length > 1) {
value = URLDecoder.decode(pair[1], "UTF-8");
}
params.put(key, value);
}
}
return params;
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
Log.d("Facebook-WebView", "Webview loading URL: " + url);
String newUrl="http://www.facebook.com/dialog/feed?_path=feed&app_id=";
if (url.contains("touch") && started==false) {
started=true;
ChildTabBibleLessonActivity.fbMaterial=ChildTabBibleLessonActivity.fbMaterial.replace(" ", "+");
url=url+"&picture=http://www.minibiblecollege.org/mbclandingpage/images/icmlogo-small.jpg&description="+ChildTabBibleLessonActivity.fbMaterial;
/* Map<String,String> param;
try {
param = getUrlParameters(url);
newUrl=newUrl+param.get("app_id")+"&redirect_uri="+"https://deep-rain-6015.herokuapp.com"+"&display=page&picture=http://www.minibiblecollege.org/mbclandingpage/images/icmlogo-small.jpg"+"&name=MiniBible&description=heregoesMyMessage";
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
*/
view.loadUrl(url);
//super.onPageStarted(view, url, favicon);
}
else
{
super.onPageStarted(view, url, favicon);
}
mSpinner.show();
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
mSpinner.dismiss();
/*
* Once webview is fully loaded, set the mContent background to be
* transparent and make visible the 'x' image.
*/
mContent.setBackgroundColor(Color.TRANSPARENT);
mWebView.setVisibility(View.VISIBLE);
mCrossImage.setVisibility(View.VISIBLE);
}
}