Detect whether a user has removed my app from his facebook apps - android

How can I check if a user has removed my app from his facebook apps before calling a dialog request.
Session session = Session.getActiveSession();
if (session != null) {
List<String> permissions = session.getPermissions();
if (!isSubsetOf(PERMISSIONS, permissions)) {
// //Log.d(TAG,
// "the session doesnt have the permissions");
Session.OpenRequest openRequest = null;
openRequest = new Session.OpenRequest(this);
openRequest.setPermissions(PERMISSIONS);
openRequest.setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK);
session.openForPublish(openRequest);
return;
} else {
// //Log.d(TAG,
// "the session has enough permissions");
displayFacebookDialog();
}
}
The else is still being called even that the user has deleted the app.
public static WebDialog displayFacebookDialog(String picture, OnCompleteListener callback,
Activity activity) {
Bundle data = new Bundle();
data.putString("name", activity.getString(R.string.app_name));
data.putString("caption", activity.getString(R.string.facebook_caption));
data.putString("description",
activity.getString(R.string.facebook_description));
data.putString("link", activity.getString(R.string.facebook_link));
data.putString("picture", picture);
WebDialog feedDialog = (new WebDialog.FeedDialogBuilder(activity,
Session.getActiveSession(), data)).setOnCompleteListener(callback).build();
return feedDialog;
}

Alright, so it looks like the permissions are bound to the Session object at creation and no request to confirm them is made when you call getPermissions. What this means is that you can have the out of sync state you're describing where your access token is no longer valid, but your application doesn't know that.
I assume what is happening is that you're getting a FacebookRequestError in your postStatusUpdate() method. You should check for this error in your callback and then put the login logic into that method.

Related

Android Facebook SDK 3 - request new permission but can't reauthorized

I have some problem with my code, i've followed hellofacebook example to post photo. But when i try to make new permission "publish_action", the code doesn't callback anything. Here is my code
private void performPublish(PendingAction action, boolean allowNoSession){
Session session = Session.getActiveSession();
if(session != null){
Toast.makeText(getApplicationContext(),"enter session unnull",Toast.LENGTH_SHORT).show();
pendingAction = action;
if(hasPublishPermission()){
Toast.makeText(getApplicationContext(),"enter haspublish",Toast.LENGTH_SHORT).show();
handlePendingAction();
Toast.makeText(getApplicationContext(),"Posted Success",Toast.LENGTH_SHORT).show();
return;
} else if(session.isOpened()) {
Toast.makeText(getApplicationContext(),"enter session opened",Toast.LENGTH_SHORT).show();
Session.NewPermissionsRequest newPermission = new Session.NewPermissionsRequest(Third.this,PERMISSION);
session.requestNewPublishPermissions(newPermission);
Toast.makeText(getApplicationContext(),"Posted Failed",Toast.LENGTH_SHORT).show();
return;
}
if(allowNoSession) {
pendingAction = action;
handlePendingAction();
}
}
}
Please help me if you can, because i'm newbie with facebook SDK. Thank you
according to new facebook sdk, you need to submit your app for review if you are publishing anything. after facebook approval you can upload picture by using any login. you can check this link for review process
https://developers.facebook.com/docs/apps/review/
https://github.com/sauce/guide/wiki/Facebook's-approval-process

Ask for additional facebook permission

I'm having trouble while trying to retrieve an additional permission "publish_action".
I assume that user has already logged in via facebook thus basic permissions are granted.
Then I have this code (from my fragment):
List<String> permissionsRequested = Arrays.asList("publish_actions");
List<String> permissionsActual = session.getPermissions();
if (!isSubsetOf(permissionsRequested, permissionsActual)) {
pendingPublishReauthorization = true;
Session.NewPermissionsRequest newPermissionsRequest = new Session
.NewPermissionsRequest(this, permissionsRequested);
session.requestNewPublishPermissions(newPermissionsRequest);
return;
}
Seeing from debug, after user grants permission, control goes to onActivityResult, where, according to facebook docs, I have
super.onActivityResult(requestCode, resultCode, data);
facebookUiHelper.onActivityResult(requestCode, resultCode, data);
uiHelper is also properly (acording to the docs) used in all those onResume&onDestroy methods.
In onCreate I have
super.onCreate(savedInstanceState);
facebookUiHelper = new UiLifecycleHelper(getActivity(), fbSessionCallback);
facebookUiHelper.onCreate(savedInstanceState);
where fbSessionCallback has overridden call() method, that calls my onFbSessionRestore():
if (pendingPublishReauthorization &&
state.equals(SessionState.OPENED_TOKEN_UPDATED)) {
pendingPublishReauthorization = false;
// do things with my new session, updated with granted permission. e.g. post to fb.
}
Trouble is that
onActivityResult executes, but after that no callback ever called, so that overridden call() won't go, and onFbSessionCallback either.
If I try to post again (start things from scratch) after that - it gets session without granted permission again, tries to request it and then goes facebook exception about pending newPublishRequest permission blah-blah
Can someone help to configure workflow from onActivityResult and later?
I read facebook docs and I tend to blame they are written badly. Maybe it's just me too stupid... :(((
This is how I have set it up:
Session session = Session.getActiveSession();
if (session != null) {
List<String> permissions = session.getPermissions();
if (!permissions.contains("publish_actions")) {
Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(this, "publish_actions");
session.addCallback(callbacktwo);
session.requestNewPublishPermissions(newPermissionsRequest);
return;
}
}
This is in my onActivityResult but it doesn't need to be. I have used it in my onCreate before. I added a callback to the request which I can then use to do my next step.
Here is my callback:
private Session.StatusCallback callbacktwo = new Session.StatusCallback() {
#Override
public void call(Session session, SessionState state, Exception exception) {
Intent in = new Intent(getActivity(), ClassHere.class);
startActivity(in);
}
};
Remember that the callback will respond twice, once when you start a permission request, and after it is completed. So you have to work around that/work that into your code.

callback issue in Facebook while user clicks anywhere while Facebook login page is loading

I have one activity(Login) and one class(FacebookLogin).
public void loginWithFacebook(boolean fetchUserInfo) {
Log.d(TAG, "Logging into Facebook.");
String applicationId = Utility.getMetadataApplicationId(activity
.getBaseContext());
mCurrentSession = Session.getActiveSession();
if (mCurrentSession == null || mCurrentSession.getState().isClosed()) {
Session session = new Session.Builder(activity.getBaseContext())
.setApplicationId(applicationId).build();
Session.setActiveSession(session);
} else {
Log.d(TAG, "SESSION open");
}
mCurrentSession = Session.getActiveSession();
if (!mCurrentSession.isOpened()) {
Session.OpenRequest openRequest = null;
openRequest = new Session.OpenRequest(activity);
if (openRequest != null) {
openRequest.setDefaultAudience(SessionDefaultAudience.FRIENDS);
openRequest.setPermissions(Arrays.asList("user_birthday",
"email", "user_hometown"));
openRequest
.setLoginBehavior(SessionLoginBehavior.SUPPRESS_SSO);
mCurrentSession.openForRead(openRequest);
}
}
}
this is method of Facebook class. specified onActivityResult method in login activity.
this works well , unless user clicks anywhere while Facebook login page is loading.
If user clicks anywhere it calls onActivityResult class.
why is this happening?
Goto onCreate() method of WebDialog.java in FacebookSDK library, you will find following statement:
spinner = new ProgressDialog(getContext());
add the below statement after it
spinner.setCanceledOnTouchOutside(false);
you are ready to go!

Facebook Android SDK Session openForPublish not creating a new session

In the Facebook Android SDK when I call
Session tempSession = new Builder(this).build();
Session.setActiveSession(tempSession);
tempSession.openForRead(new OpenRequest(this).setPermissions(FB_PERMISSIONS));
It gets a FB session and every thing runs as normal. But when I replace Read with Publish. i.e. follows
Session tempSession = new Builder(this).build();
Session.setActiveSession(tempSession);
tempSession.openForPublish(new OpenRequest(this).setPermissions(FB_PERMISSIONS));
It gives an error saying, that the session is empty, and cannot get publish permissions to empty session.
Can you please tell why is it like this and what would be the best way to handle this?
It took me a while to sort this out so a user could click a button to share one of my products on Facebook in a feed. I didn't want them to be prompted to sign in until they actually wanted to share, so I really just wanted publish permission. The following stacks the initial login/read permission request with the publish permission request. This will double-prompt the users, first for read, then for publish, but that is required now regardless of the solution:
Session session = Session.getActiveSession();
if (session == null) {
session = new Session.Builder(this).setApplicationId("<APP ID HERE>").build();
Session.setActiveSession(session);
session.addCallback(new StatusCallback() {
public void call(Session session, SessionState state, Exception exception) {
if (state == SessionState.OPENED) {
Session.OpenRequest openRequest = new Session.OpenRequest(FacebookActivity.this);
openRequest.setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK);
session.requestNewPublishPermissions(
new Session.NewPermissionsRequest(FacebookActivity.this, PERMISSIONS));
}
else if (state == SessionState.OPENED_TOKEN_UPDATED) {
publishSomething();
}
else if (state == SessionState.CLOSED_LOGIN_FAILED) {
session.closeAndClearTokenInformation();
// Possibly finish the activity
}
else if (state == SessionState.CLOSED) {
session.close();
// Possibly finish the activity
}
}});
}
if (!session.isOpened()) {
Session.OpenRequest openRequest = new Session.OpenRequest(this);
openRequest.setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK);
session.openForRead(openRequest);
}
else
publishSomething();
The short answer is, don't call openForPublish. Call openForRead, and then requestNewPublishPermissions later if you need publish permissions.
The long answer is, you can't request publish permissions (on a user who's never connected with Facebook before via your app) unless you already have basic or default permissions already (what you would get if you call openForRead with an empty permission set). So openForPublish actually handles a very specific niche use case that most apps probably don't have.

User is asked for login credentials during reauthorization

I am trying to implement the new Facebook SDK 3.0 into my Android app and I have run into a problem. The problem I am having is that the user is asked to log in again to give publish ("post_to_wall") permissions, even though the user is already logged in, with read permissions. This only happens if the user doesn't have the FB application installed. If he has the FB application installed, then he is only asked to grant the permissions.
This is how I implemented the login:
public void login(Activity activity) {
Session session = Session.getActiveSession();
if (session == null || !session.isOpened()) {
openActiveSession(activity, true, sessionStatusCallback);
}
}
private Session openActiveSession(final Activity activity, final boolean allowLoginUI, final StatusCallback callback) {
return openActiveSession(activity, allowLoginUI, new OpenRequest(activity).setCallback(callback));
}
private Session openActiveSession(final Context context, final boolean allowLoginUI, final OpenRequest openRequest) {
Session session = new Builder(context).setApplicationId(FACEBOOK_APPLICATION_ID).build();
if (SessionState.CREATED_TOKEN_LOADED.equals(session.getState()) || allowLoginUI) {
Session.setActiveSession(session);
session.openForRead(openRequest);
return session;
}
return null;
}
This is the callback's call method:
public void call(final Session session, final SessionState state, final Exception exception) {
if (session.isOpened()) {
if (state.equals(SessionState.OPENED_TOKEN_UPDATED)) {
// code if new permissions have been granted
} else {
// code for login
}
} else if (session.isClosed()) {
// code for user canceled login
} else if (exception != null) {
// code if there were errors during login
}
}
}
This is the code I added to onActivityResult method of the activity that calls the login:
Session.getActiveSession().onActivityResult(activity, requestCode, resultCode, data);
And this is how I ask for new permissions:
Session session = Session.getActiveSession();
if (session != null && session.isOpened()) {
if (DONT_HAVE_PERMISSIONS) {
Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(activity,
FACEBOOK_PERMISSIONS).setRequestCode(FACEBOOK_AUTHORIZE_ACTIVITY_CODE);
session.requestNewPublishPermissions(newPermissionsRequest);
}
}
I've tried to find out more about this problem, and I only found out some hints that this is intended, but I haven't found anything concrete.
Is this the default behavior? If so, is there a way around it? Or, perhaps I did something wrong?
Thanks for the help.
Update your SDK version; this issue is resolved in Facebook Android SDK v3.0.1.
Looking at facebooks source code I think it should be possible to start trying to get the permissions directly as both login, and permissions classes derive from the same AuthorizationRequest class, and the AuthorizationRequest class does all the work, like really all the work. The Session.NewPermissionsRequest class just makes some private methods, public in the AuthorizationRequest class and that's it! They might as well give us access to AuthorizationRequest directly. The new facebook API doesn't seem to have any form of "OnFailed/OnSuccess" callbacks, so I end up having a state machine to remember the goal of firing up facebook (login, permissions, get friends list ...), and which step I'm on. If they have done some form of onFailed/onSuccess callbacks it would be simple to make a chain rather than keeping track of a state machine.
I haven't tried what I said. If I do, I'll update the answer. If you try and it works to just fire up Session.NewPermissionsRequest directly without logging in let me know!
Update
I got it working with only asking for credentials once as I explained above.
goto src/com/facebook/Sessions.java
On line 862 you will find
private static Session openActiveSession(Context context, boolean allowLoginUI, OpenRequest openRequest)
make it be a public function and save.
Now instead of creating the Session.NewPermissionsRequest object. Make Session.OpenRequest
permisions = new ArrayList<String>();
permisions.add("user_photos");
permisions.add("friends_photos");
Session.NewPermissionsRequest request = new Session.NewPermissionsRequest(
activity, permisions);
request.setCallback(helper);
if (Session.getActiveSession() != null)
Session.getActiveSession().requestNewReadPermissions(request);
else {
Session.OpenRequest orequest = new Session.OpenRequest(activity);
orequest.setPermissions(permisions);
orequest.setCallback(helper);
// its now public so you can call it
Session.openActiveSession(act, true, request);
}
Now make sure you do set a callback, for one important reason
#Override
public void call(Session session, SessionState state, Exception exception) {
if (state.isClosed()) {
// we are doing unofficial stuff so we loose guarantees.
// Set the active session to null if we logout or user cancels
// logging in. If you don't do this, the second time it will result
// in a crash.
Session.setActiveSession(null);
}
}
Now it will ask for all permissions directly and login in one go.

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