I want to get the key-hash from signed signature of my Android App so that I can integrate facebook login in my android app. I have created the signed signature using AndroidTools-->Export Signed Application Package. How can I read the key generated in the signature file.
Solution 1:
Try this link: http://www.helloandroid.com/tutorials/using-facebook-sdk-android-development-part-1. I found that using the Facebook method of getting a Hash Key did not always work as advertised. This link however, has a different method of getting the Hash Key and has pretty much always worked.
Solution 2:
That being said, I always found the simplest thing to do was, let the Facebook SDK tell you what your Hash Key is. This is by far more simpler and shouldn't take more than a couple of minutes.
Step 1: In your Facebook SDK, locate the Util.java class. In that, change this:
private static boolean ENABLE_LOG = false;
to:
private static boolean ENABLE_LOG = true;
Step 2: Create a new Signed APK, transfer to your device and install. If it is already installed, naturally, it will prompt.
Step 3: With your DDMS (Logcat) running and your device connected to the computer, run the application and keep looking for a key mismatch warning. That warning has the actual Hash Key. Copy that key, go to your Facebook Developer page and add the new key to the list.
Related
I got KeyHash using this.
Of course, I copied this (KeyHash, package name and main activity class) to facebook settings according this.
And when I debug my app it looks fine (I can login and logout how many times I want), but when I create APK and run the app I received common error "invalid key hash the key hash does not match any stored key hash..."
What do I need to except getting right KeyHash and adding it into your Facebook App ID's Android settings?
You have to call
FacebookSdk.sdkInitialize(getApplicationContext());
before calling
FacebookSdk.getApplicationSignature(getApplicationContext());
to avoid getting NULL
This worked fine for me.
When I'm calling plusClient.getCurrentPerson() I am getting NULL.
Method onConnected(Bundle...) called after a successful login:
#Override
public void onConnected(Bundle bundle)
{
if (plusClient.getCurrentPerson() == null)
{
Log.e("DD", "Person is null !");
}
}
I have added SHA1 directly from eclipse (Window->Preferences->Android->Build). I don't know what I am doing wrong!
SHA1 fingerprint from Eclipse ADT
Client ID for installed applications
Simple API access
In my case I forgot to enable permission for google-plus
Hope it works...Any doubt let me know
Check from scratch:
Sometime person info may be null
check : PERMISSIONS
Important things to do:
Enable Google plus API
Enable Google Maps Android API
If you test locally then add sha1 key in eclipse-->window-->preference option-->Android-->Build
OR
You can generate SHA1 key through command prompt
keytool -list -v -keystore "C:\Users\User.android\debug.keystore" -alias androiddebugkey -storepass android -keypass android
If you are publishing app in play-store then you need to change SHA1 key in google console
because in local SHA1 key is different . After doing signedApk SHA1 key is different
While generating signed apk -->in the last screen -->you can see SHA1 key
After adding in google console you will get API key
Add this key in Manifest file
I just found out that you need to pass multiple scopes when you're building the PlusClient object:
PlusClient plusClient = new PlusClient.Builder(this, this, this).setScopes(Scopes.PLUS_LOGIN, Scopes.PLUS_PROFILE ,"https://www.googleapis.com/auth/userinfo.email").build();
I encountered this today. This is an old post but I think others should know how I fixed this in Android Studio and what was the source of the problem.
I spent the last 6 hours with this and the problem was that a week ago I changed the package name using Refactoring from Android Studio but something must have gotten wrong since would always return me null, even though I refactored the project back to it's original package.
I fixed this by creating a new project, without closing the original, but using the same package name and the same login code from the original project and to my surprise it worked. The name of the new project was different but I named the package the same as the old one and it only had a button and code to manage the connection and nothing else.
The new project would read the data as it should and now the old project somehow got back on his feet and started reading the current user.
I closed the project with Close Project option from the File menu.
Best regards !
Please check your phone network. you can use those codes below to check:
Plus.PeopleApi.loadVisible(mGoogleApiClient, null).setResultCallback(this);
#Override
public void onResult(LoadPeopleResult result) {
Log.d(TAG, "result.getStatus():" + result.getStatus());
}
if the result status is network error. the current person will be null.
I'm in China, so as you know if we want to connect the google service , sometimes we need a good agent 。
This looks like a permissions issue. I added payment details in the Google API Console and it magically started working.
We integrated Facebook login on our Kindle Fire android app. It works without any problem most of the time. But occasionally for some users, when they try to register using facebook login, it fails with the error "APp is misconfigured for facebook login". We checked the hash key, package name and all that, they all are correct. As i said, it works for 95% of the users. For those users it fails, it fails repeatedly. Anybody from facebook can help us resolve this issue? Appreciated. (BTW, we use the same facebook app for our google play version of the android app also with a different hash key, we never had this problem for our google play app. We got the hash key for Kindle from Amazon.) Since it doesnt fail in any of our devices, and fails only on some random user's devices, we couldnt get any debug messages.
PS: I have already read the thread App is misconfigured for Facebook login: Android Facebook integration issue . I am a new user, i couldnt ask this question over there.
We just had the same problem with one of our apps on the Amazon appstore. In our case we realized the problem only happened if these three conditions were true:
Kindle Fire HD
Facebook App installed and user logged in
User also logged into facebook via Settings -> My Account -> Manage Social Accounts
That may explain why in your case it only happens in 5% of the cases.
As far as we could tell, Amazon resigns the .apk, which breaks the Facebook Android App Key Hash check.
The solution involved:
Obtaining the Amazon .apk of our app (not the one we submitted, but the one distributed by the Amazon appstore)
Extract the signing certificate from the .apk file
Base64 encode the SHA digest of the encoded certificate
Add the resulting Base64 key hash to our Facebook App settings
This fixed the problem.
Getting the .apk proved tricky. Applications reside in the /data/app folder of the device's filesystem. However, this directory is protected to prevent listing it, so unless you know the name of the file you're looking for, you're out of luck. You can of course, root the device. Alternatively you can try your blind luck by doing adb pull /data/app/<app-id><suffix>.apk where suffix is either an empty string or -1, -2, etc, until you succeed. E.g.:
$ adb pull /data/app/com.example.game.apk
remote object '/data/app/com.example.game.apk' does not exist
$ adb pull /data/app/com.example.game-1.apk
remote object '/data/app/com.example.game-1.apk' does not exist
$ adb pull /data/app/com.example.game-2.apk
3658 KB/s (1085140 bytes in 0.289s)
If this approach fails, rooting might be the only option.
Once you have the .apk file, you can use the code below to obtain the key hash. Save as Main.java, compile with javac Main.java and run with java Main <APK>, e.g.:
$ javac Main.java
$ java Main com.example.game-1.apk
com.example.game-1.apk: 478uEnKQV+fMQT8Dy4AKvHkYibo=
Adding 478uEnKQV+fMQT8Dy4AKvHkYibo= to the key hashes of our Facebook App settings then fixes the problem. I'm curious if other people find the same hash we got (which would mean all Amazon games are resigned with the same key). In our case, the hash started with wwYPegrz....
Here's the code:
import java.security.MessageDigest;
import java.security.cert.Certificate;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import sun.misc.BASE64Encoder;
public class Main {
public static void main(String[] args) throws Exception {
for (String jarFilename : args)
extractHash(jarFilename);
}
private static void extractHash(String jarFilename) throws Exception {
BASE64Encoder base64 = new BASE64Encoder();
MessageDigest sha1 = MessageDigest.getInstance("SHA");
Set<Certificate> certificates = new HashSet<Certificate>();
JarFile jarFile = new JarFile(jarFilename);
for (JarEntry jarEntry : Collections.list(jarFile.entries())) {
jarFile.getInputStream(jarEntry).skip(Long.MAX_VALUE);
Certificate[] certs = jarEntry.getCertificates();
if (certs == null)
continue;
certificates.addAll(Arrays.asList(certs));
}
System.out.printf("%s:", jarFilename);
for (Certificate cert : certificates) {
byte[] digest = sha1.digest(cert.getEncoded());
System.out.printf(" %s", base64.encode(digest));
}
if (certificates.isEmpty())
System.out.printf(" NOT SIGNED!");
System.out.println();
jarFile.close();
}
}
#Blanka's answer is technically correct, however I found an easier way: Simply go to Amazon developer console and copy the value I have highlighted in the red rectangle:
The solution from Blanka works.
However, here's another solution easier to do if you can reproduce the issue on a Kindle Fire.
Retrieve from LogCat the authentication request sent by Facebook:
03-13 15:21:19.360: D/WebCore(26863): *-* Total load time: 1535.31 ms, thread time: 287.00 ms for
https://m.facebook.com/dialog/oauth?android_key=XXXXXXXXXXXXX&calling_package_key=<app_package_id>
&client_id=YYYYYYYYYYYY&display=touch&redirect_uri=fbconnect%3A%2F%2Fsuccess&scope=email%
2Cpublish_stream&type=user_agent&_rdr
android_key parameter is the Hash Key of your app.
You need to add this key on the Facebook Dashboad.
Note: Be careful, the encoding format of your hash may in the https request be different that the one needed by Facebook.
I think the problem with hashkey, I also faced same issue. I resolved this by downloaded openssl and generated hash. Try with following answer https://stackoverflow.com/a/14826036/1258999
Discovered an even easier way to deal with this on Kindle or any other device. If you have the FB app installed (in my case I didn't try other sign in paths but may work too?), and the login you're using is listed as a developer in the FB app at developer.facebook.com for the app in question, the hash will appear in the error message it gives you in the app itself. Says something to the effect of "Hash key xxxxxxxxxxxxxxxxx was not recognized. Manage your hash keys in the developer portal for app id yyyyyyyyyyyy".
Sorry if the text isn't exactly right, i didn't screenshot it prior to fixing the problem myself, but that's the gist of it.
when I using new Facebook SDK v3.0.2.b sample HelloFacebookSample, I login to Facebook but I get error:
HelloFBSample is misconfigured for Facebook login.
But I have already generate Hash key and add it to Sample App Setting on Facebook Developer site.
Is anybody get the same defect?
Or is it a bug of new SDK?
Sometimes the Key Hash generated using the method given by the Facebook Doc does not always work as advertised. I have faced this problem and so have a few others.
There are a couple of things you can do to sort it out.
First method
Follow the tutorial on this site: http://www.helloandroid.com/tutorials/using-facebook-sdk-android-development-part-1
This is a little time consuming (about 5 odd minutes I expect) but worked when I tried it.
Second Method (And I personally like this one)
Find the Util.java in the Facebook SDK and open it.
Among the first few lines of code, you should see this piece: private static boolean ENABLE_LOG = false;.
Change the false to true and run your application with your logcat (DDMD) open.
You should see an error that looks something like this:
Login failed: invalid_key:Android key mismatch. Your key
"**real*key***" does not match the allowed keys specified in
your application settings.
If this is for a testing APK, using the debug.keystore, this will be enough. However, if this is for an app signed with your release key, then follow the steps till Step No. 3 but instead of pushing the app from eclipse, create a signed APK and install that on your device. Don't forget to keep it connected with DDMS running.
This part here: "**real*key***" is your actual key.
I have been following the Facebook API guide on https://developers.facebook.com/docs/mobile/android/build/#sig and in step 5 it says
There are two ways to find your Android application signature:
1) From debug logs generated during Single Sign On when there is a signature mismatch.
2) From the Java JDK keytool.
How do I find it using debug logs? I have enabled the logs as they said, using private static boolean ENABLE_LOG = true;. I want to know this because I have tried to get it following step 2, but unsuccessfully. I can't find anything in the logs that would tell me the correct Key Hash.
after setting private static boolean ENABLE_LOG = true;
run single sign on, if at all you dont find the key in error logs then,
add this line of code in one of the callback functions mentioned below
onFacebookError(FacebookError error)
{
System.out.println(error);
}
now run it check error logs, you'll be able to find the key.