fixing up the authenticator to allow identiy chaining

routes/web.php

@@ -1,6 +1,7 @@
 <?php
 use SocialNorm\Exceptions\ApplicationRejectedException;
 use SocialNorm\Exceptions\InvalidAuthorizationCodeException;
+use SocialNorm\ProviderUser;
 
 /*
 |--------------------------------------------------------------------------
@@ -36,52 +37,59 @@ Route::get('/home', 'HomeController@index')->name('home');
 
 // ----------------- SOCIAL LOGIN --------------------
 
+function _loginVia($method) {
+    try {
+        SocialAuth::login($method, function (\App\Models\User $user, ProviderUser $details) {
+            // update user name first time user logs in
+            if (!$user->exists) {
+                $user->name = $details->nickname ?: ($details->full_name ?: $details->email);
+            }
+
+            // set e-mail from provider data, only if user e-mail is empty
+            if ("$user->email" === "") {
+                $user->email = $details->email;
+            }
+        });
+    } catch (ApplicationRejectedException $e) {
+        abort(401, $e->getMessage());
+    } catch (InvalidAuthorizationCodeException $e) {
+        abort(401, $e->getMessage());
+    }
+    return Redirect::intended();
+};
+
+
 Route::get('/auth/github/authorize', function() {
 	return SocialAuth::authorize('github');
 })->name('oauth-github-authorize');
 
 Route::get('/auth/github/callback', function() {
-	try {
-		SocialAuth::login('github');
-	} catch (ApplicationRejectedException $e) {
-		abort(401, $e->getMessage());
-	} catch (InvalidAuthorizationCodeException $e) {
-		abort(401, $e->getMessage());
-	}
-	return Redirect::intended();
+	return _loginVia('github');
 })->name('oauth-github-callback');
 
 
-
 Route::get('/auth/google/authorize', function() {
 	return SocialAuth::authorize('google');
 })->name('oauth-google-authorize');
 
 Route::get('/auth/google/callback', function() {
-	try {
-		SocialAuth::login('google');
-	} catch (ApplicationRejectedException $e) {
-		abort(401);
-	} catch (InvalidAuthorizationCodeException $e) {
-		abort(401);
-	}
-	return Redirect::intended();
+    return _loginVia('google');
 })->name('oauth-google-callback');
 
 
-
-
 Route::get('/auth/facebook/authorize', function() {
 	return SocialAuth::authorize('facebook');
 })->name('oauth-facebook-authorize');
 
 Route::get('/auth/facebook/callback', function() {
-	try {
-		SocialAuth::login('facebook');
-	} catch (ApplicationRejectedException $e) {
-		abort(401);
-	} catch (InvalidAuthorizationCodeException $e) {
-		abort(401);
-	}
-	return Redirect::intended();
+    return _loginVia('facebook');
 })->name('oauth-facebook-callback');
+
+
+Route::get('/auth/stack/authorize', function() {
+    return SocialAuth::authorize('stack');
+})->name('oauth-stack-authorize');
+
+Route::get('/auth/stack/callback', function() {
+    return _loginVia('stack');
+})->name('oauth-stack-callback');