Revert "For #373 - Integrate leanplum-fcm"

This reverts commit ed239ec250.

We're choosing to revert LeanPlum push messaging integration since we believe
that this has introduced a crash in Firebase push messaging. To verify
this assumption we're reverting this change, and when confirmed, we can
re-introduce Leamplum in a safer manner.

See #6250 and #6251 for related info.

app/build.gradle

@@ -341,7 +341,6 @@ dependencies {
 
     implementation Deps.sentry
     implementation Deps.leanplum
-    implementation Deps.leanplumMessaging
     implementation Deps.osslicenses_library
 
     implementation Deps.mozilla_concept_engine

app/proguard-rules.pro

@@ -54,18 +54,6 @@
 
 -keep class org.mozilla.fenix.**ViewModel { *; }
 
-####################################################################################################
-# Leanplum
-####################################################################################################
-
--keepclassmembers class * {
-  @com.leanplum.annotations.* <fields>;
-}
-
--keep class com.leanplum.** { *; }
--dontwarn com.leanplum.**
-
-
 ####################################################################################################
 # Adjust
 ####################################################################################################
@@ -106,4 +94,3 @@
 # Keep motionlayout internal methods
 # https://github.com/mozilla-mobile/fenix/issues/2094
 -keep class androidx.constraintlayout.** { *; }
-

app/src/main/java/org/mozilla/fenix/components/FirebasePush.kt

@@ -4,40 +4,6 @@
 
 package org.mozilla.fenix.components
 
-import com.google.firebase.messaging.RemoteMessage
 import mozilla.components.lib.push.firebase.AbstractFirebasePushService
-import org.json.JSONObject
-import org.mozilla.fenix.ext.components
 
-class FirebasePush : AbstractFirebasePushService() {
-
-    // Helper function to help determine if the incoming message is from Leanplum
-    private fun RemoteMessage.isLeanplumChannel(): Boolean =
-        data[LEANPLUM_KEY]
-            ?.let { JSONObject(it) }
-            ?.getString(LEANPLUM_NAME_KEY) == LEANPLUM_CHANNEL_NAME
-
-    /**
-     * Overrides onMessageReceived to handle incoming Leanplum messages.
-     */
-    override fun onMessageReceived(remoteMessage: RemoteMessage?) {
-        if (remoteMessage?.isLeanplumChannel() == true) {
-            val message = remoteMessage.data?.get(LEANPLUM_MESSAGE_KEY) ?: return
-            sendLeanplumMessage(message)
-            return
-        }
-
-        return super.onMessageReceived(remoteMessage)
-    }
-
-    private fun sendLeanplumMessage(message: String) {
-        applicationContext.components.backgroundServices.notificationManager.showMessage(message)
-    }
-
-    companion object {
-        private const val LEANPLUM_KEY = "lp_channel"
-        private const val LEANPLUM_NAME_KEY = "name"
-        private const val LEANPLUM_CHANNEL_NAME = "leanplum"
-        private const val LEANPLUM_MESSAGE_KEY = "lp_message"
-    }
-}
+class FirebasePush : AbstractFirebasePushService()

app/src/main/java/org/mozilla/fenix/components/NotificationManager.kt

@@ -19,7 +19,6 @@ import androidx.core.app.NotificationManagerCompat
 import androidx.core.content.getSystemService
 import mozilla.components.concept.sync.DeviceEvent
 import mozilla.components.concept.sync.TabData
-import mozilla.components.support.base.ids.notify
 import mozilla.components.support.base.log.logger.Logger
 import org.mozilla.fenix.R
 
@@ -30,8 +29,6 @@ class NotificationManager(private val context: Context) {
     companion object {
         const val RECEIVE_TABS_TAG = "ReceivedTabs"
         const val RECEIVE_TABS_CHANNEL_ID = "ReceivedTabsChannel"
-        const val DEFAULT_CHANNEL_TAG = "Default"
-        const val DEFAULT_CHANEL_ID = "DefaultChannel"
     }
 
     init {
@@ -47,13 +44,6 @@ class NotificationManager(private val context: Context) {
                 context.getString(R.string.fxa_received_tab_channel_name),
                 context.getString(R.string.fxa_received_tab_channel_description)
             )
-
-            createNotificationChannel(
-                DEFAULT_CHANEL_ID,
-                NotificationManager.IMPORTANCE_DEFAULT,
-                context.getString(R.string.app_name),
-                ""
-            )
         }
     }
 
@@ -98,21 +88,6 @@ class NotificationManager(private val context: Context) {
         }
     }
 
-    fun showMessage(message: String) {
-        val builder = NotificationCompat.Builder(context, DEFAULT_CHANEL_ID)
-            .setSmallIcon(R.drawable.ic_status_logo)
-            .setContentTitle(context.getString(R.string.app_name))
-            .setContentText(message)
-            .setWhen(System.currentTimeMillis())
-            .setPriority(NotificationCompat.PRIORITY_HIGH)
-            .setDefaults(Notification.DEFAULT_VIBRATE or Notification.DEFAULT_SOUND)
-
-        val notification = builder.build()
-        with(NotificationManagerCompat.from(context)) {
-            notify(context, DEFAULT_CHANNEL_TAG, notification)
-        }
-    }
-
     @TargetApi(Build.VERSION_CODES.O)
     private fun createNotificationChannel(
         channelId: String,

buildSrc/src/main/java/Dependencies.kt

@@ -164,7 +164,6 @@ object Deps {
     const val leakcanary = "com.squareup.leakcanary:leakcanary-android:${Versions.leakcanary}"
 
     const val leanplum = "com.leanplum:leanplum-core:${Versions.leanplum}"
-    const val leanplumMessaging = "com.leanplum:leanplum-fcm:${Versions.leanplum}"
 
     const val androidx_annotation = "androidx.annotation:annotation:${Versions.androidx_annotation}"
     const val androidx_fragment = "androidx.fragment:fragment-ktx:${Versions.androidx_fragment}"