implement Foss build flavour

Provide two build flavours 'Foss' and 'Play', the 'Play' flavour is
unchanged to what we had before. The 'Foss' flavour removes the
dependence on proprietary libraries.

This removes crashlytics, instead logging to the local log.

It also removes firebase/gcm messaging, disabling push functionality.
For now there is no replacement for this.

app/build.gradle

+def taskRequests = getGradle().getStartParameter().getTaskRequests().toString()
+def isPlay = !(taskRequests.contains("Foss") || taskRequests.contains("foss"))
+
 apply plugin: 'com.android.application'
-apply plugin: 'io.fabric'
+if (isPlay) { apply plugin: 'io.fabric' }
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'
@@ -57,6 +60,20 @@ android {
         }
     }
 
+    flavorDimensions "type"
+
+    productFlavors {
+        // includes proprietary libs
+        play {
+            dimension "type"
+        }
+
+        // only foss
+        foss {
+            dimension "type"
+        }
+    }
+
     packagingOptions {
         exclude 'META-INF/core.kotlin_module'
         exclude 'META-INF/main.kotlin_module'
@@ -91,8 +108,8 @@ dependencies {
     kapt libraries.daggerProcessor
     kapt libraries.daggerAndroidApt
 
-    implementation libraries.fcm
-    implementation libraries.playServicesAuth
+    playImplementation libraries.fcm
+    playImplementation libraries.playServicesAuth
 
     implementation libraries.room
     kapt libraries.roomProcessor
@@ -126,7 +143,7 @@ dependencies {
 
     implementation "com.github.luciofm:livedata-ktx:b1e8bbc25a"
 
-    implementation('com.crashlytics.sdk.android:crashlytics:2.9.4@aar') {
+    playImplementation('com.crashlytics.sdk.android:crashlytics:2.9.4@aar') {
         transitive = true
     }
 
@@ -156,5 +173,6 @@ task compileSdk(type:Exec) {
     }
 }
 preBuild.dependsOn compileSdk
-
-apply plugin: 'com.google.gms.google-services'
+if (isPlay) {
+    apply plugin: 'com.google.gms.google-services'
+}

app/src/foss/java/chat/rocket/android/dagger/module/ServiceBuilder.kt

+package chat.rocket.android.dagger.module
+
+import chat.rocket.android.chatroom.di.MessageServiceProvider
+import chat.rocket.android.chatroom.service.MessageService
+import dagger.Module
+import dagger.android.ContributesAndroidInjector
+
+@Module abstract class ServiceBuilder {
+    @ContributesAndroidInjector(modules = [MessageServiceProvider::class])
+    abstract fun bindMessageService(): MessageService
+}

app/src/foss/java/chat/rocket/android/helper/CrashlyticsTree.kt

+package chat.rocket.android.helper
+
+import timber.log.Timber
+import android.util.Log
+
+class CrashlyticsTree : Timber.Tree() {
+
+    override fun log(priority: Int, tag: String?, message: String, throwable: Throwable?) {
+        Log.println(priority, tag, message)
+
+        if (throwable != null) {
+            Log.e(tag,throwable.toString())
+        }
+    }
+}

app/src/foss/java/chat/rocket/android/push/FirebaseTokenService.kt

+package chat.rocket.android.push
+
+class FirebaseTokenService {
+
+}
\ No newline at end of file

app/src/foss/java/chat/rocket/android/util/CrashlyticsManager.kt

+package chat.rocket.android.util
+
+import android.content.Context
+
+fun setupCrashlytics(context: Context) {
+        //Do absolutely nothing
+}

app/src/foss/java/chat/rocket/android/util/GMSManager.kt

+package chat.rocket.android.util
+
+
+import chat.rocket.android.main.ui.MainActivity
+import chat.rocket.android.main.presentation.MainPresenter
+
+fun refreshFCMToken(presenter: MainPresenter) {
+    //Do absolutely nothing
+}
+
+fun invalidateFirebaseToken(token: String) {
+    //Do absolutely nothing
+}
\ No newline at end of file

app/src/main/AndroidManifest.xml

@@ -95,23 +95,6 @@
             </intent-filter>
         </receiver>
 
-        <service
-            android:name=".push.FirebaseTokenService"
-            android:exported="false">
-            <intent-filter>
-                <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
-            </intent-filter>
-        </service>
-
-        <service
-            android:name=".push.FirebaseMessagingService"
-            android:enabled="true"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="com.google.firebase.MESSAGING_EVENT" />
-            </intent-filter>
-        </service>
-
         <service
             android:name=".chatroom.service.MessageService"
             android:exported="true"
@@ -122,4 +105,4 @@
             android:value="12ac6e94f850aaffcdff52001af77ca415d06a43" />
     </application>
 
-</manifest>
\ No newline at end of file
+</manifest>

app/src/main/java/chat/rocket/android/app/RocketChatApplication.kt

@@ -13,15 +13,13 @@ import chat.rocket.android.dagger.DaggerAppComponent
 import chat.rocket.android.dagger.qualifier.ForMessages
 import chat.rocket.android.helper.CrashlyticsTree
 import chat.rocket.android.infrastructure.LocalRepository
-import chat.rocket.android.infrastructure.installCrashlyticsWrapper
 import chat.rocket.android.server.domain.AccountsRepository
 import chat.rocket.android.server.domain.GetCurrentServerInteractor
 import chat.rocket.android.server.domain.GetSettingsInteractor
 import chat.rocket.android.server.domain.SITE_URL
 import chat.rocket.android.server.domain.TokenRepository
 import chat.rocket.android.emoji.EmojiRepository
-import com.crashlytics.android.Crashlytics
-import com.crashlytics.android.core.CrashlyticsCore
+import chat.rocket.android.util.setupCrashlytics
 import com.facebook.drawee.backends.pipeline.DraweeConfig
 import com.facebook.drawee.backends.pipeline.Fresco
 import com.facebook.imagepipeline.core.ImagePipelineConfig
@@ -31,7 +29,6 @@ import dagger.android.DispatchingAndroidInjector
 import dagger.android.HasActivityInjector
 import dagger.android.HasBroadcastReceiverInjector
 import dagger.android.HasServiceInjector
-import io.fabric.sdk.android.Fabric
 import timber.log.Timber
 import java.lang.ref.WeakReference
 import javax.inject.Inject
@@ -89,7 +86,7 @@ class RocketChatApplication : Application(), HasActivityInjector, HasServiceInje
         AndroidThreeTen.init(this)
         EmojiRepository.load(this)
 
-        setupCrashlytics()
+        setupCrashlytics(this)
         setupFresco()
         setupTimber()
 
@@ -125,15 +122,6 @@ class RocketChatApplication : Application(), HasActivityInjector, HasServiceInje
         }
     }
 
-    private fun setupCrashlytics() {
-        val core = CrashlyticsCore.Builder().disabled(BuildConfig.DEBUG).build()
-        Fabric.with(this, Crashlytics.Builder().core(core).build())
-
-        installCrashlyticsWrapper(this@RocketChatApplication,
-                getCurrentServerInteractor, settingsInteractor,
-                accountRepository, localRepository)
-    }
-
     private fun setupFresco() {
         Fresco.initialize(this, imagePipelineConfig, draweeConfig)
     }
@@ -169,4 +157,4 @@ class RocketChatApplication : Application(), HasActivityInjector, HasServiceInje
 private fun LocalRepository.needOldMessagesCleanUp() = getBoolean(CLEANUP_OLD_MESSAGES_NEEDED, true)
 private fun LocalRepository.setOldMessagesCleanedUp() = save(CLEANUP_OLD_MESSAGES_NEEDED, false)
 
-private const val CLEANUP_OLD_MESSAGES_NEEDED = "CLEANUP_OLD_MESSAGES_NEEDED"
\ No newline at end of file
+private const val CLEANUP_OLD_MESSAGES_NEEDED = "CLEANUP_OLD_MESSAGES_NEEDED"

app/src/main/java/chat/rocket/android/main/ui/MainActivity.kt

@@ -25,9 +25,9 @@ import chat.rocket.android.util.extensions.fadeIn
 import chat.rocket.android.util.extensions.fadeOut
 import chat.rocket.android.util.extensions.rotateBy
 import chat.rocket.android.util.extensions.showToast
+import chat.rocket.android.util.invalidateFirebaseToken
+import chat.rocket.android.util.refreshFCMToken
 import chat.rocket.common.model.UserStatus
-import com.google.firebase.iid.FirebaseInstanceId
-import com.google.firebase.messaging.FirebaseMessaging
 import dagger.android.AndroidInjection
 import dagger.android.AndroidInjector
 import dagger.android.DispatchingAndroidInjector
@@ -63,13 +63,7 @@ class MainActivity : AppCompatActivity(), MainView, HasActivityInjector,
         setContentView(R.layout.activity_main)
 
         launch(CommonPool) {
-            try {
-                val token = FirebaseInstanceId.getInstance().token
-                Timber.d("FCM token: $token")
-                presenter.refreshToken(token)
-            } catch (ex: Exception) {
-                Timber.d(ex, "Missing play services...")
-            }
+            refreshFCMToken(presenter)
         }
 
         chatRoomId = intent.getStringExtra(INTENT_CHAT_ROOM_ID)
@@ -211,7 +205,7 @@ class MainActivity : AppCompatActivity(), MainView, HasActivityInjector,
     }
 
     override fun invalidateToken(token: String) =
-        FirebaseInstanceId.getInstance().deleteToken(token, FirebaseMessaging.INSTANCE_ID_SCOPE)
+        invalidateFirebaseToken(token)
 
     override fun showMessage(resId: Int) = showToast(resId)
 

app/src/play/AndroidManifest.xml

+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="chat.rocket.android">
+
+    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
+
+    <permission
+        android:name="${applicationId}.permission.C2D_MESSAGE"
+        android:protectionLevel="signature" />
+
+    <uses-permission android:name="${applicationId}.permission.C2D_MESSAGE" />
+
+    <application
+        android:name=".app.RocketChatApplication"
+        android:allowBackup="true"
+        android:fullBackupContent="@xml/backup_config"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:networkSecurityConfig="@xml/network_security_config"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true">
+
+        <receiver
+            android:name="com.google.android.gms.gcm.GcmReceiver"
+            android:exported="true"
+            android:permission="com.google.android.c2dm.permission.SEND">
+            <intent-filter>
+                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
+                <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
+
+                <category android:name="${applicationId}" />
+            </intent-filter>
+        </receiver>
+
+        <service
+            android:name=".push.FirebaseTokenService"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
+            </intent-filter>
+        </service>
+        <service
+            android:name=".push.FirebaseMessagingService"
+            android:enabled="true"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT" />
+            </intent-filter>
+        </service>
+    </application>
+</manifest>

app/src/play/java/chat/rocket/android/util/CrashlyticsManager.kt

+package chat.rocket.android.util
+
+import chat.rocket.android.BuildConfig
+import io.fabric.sdk.android.Fabric
+import com.crashlytics.android.Crashlytics
+import com.crashlytics.android.core.CrashlyticsCore
+import android.content.Context
+import chat.rocket.android.app.RocketChatApplication
+import chat.rocket.android.infrastructure.installCrashlyticsWrapper
+
+fun setupCrashlytics(context: Context) {
+    val core = CrashlyticsCore.Builder().disabled(BuildConfig.DEBUG).build()
+    Fabric.with(context, Crashlytics.Builder().core(core).build())
+
+    installCrashlyticsWrapper(context as RocketChatApplication,
+            context.getCurrentServerInteractor, context.settingsInteractor,
+            context.accountRepository, context.localRepository)
+}
\ No newline at end of file

app/src/play/java/chat/rocket/android/util/GMSManager.kt

+package chat.rocket.android.util
+
+import chat.rocket.android.R
+import chat.rocket.android.main.ui.MainActivity
+import chat.rocket.android.main.presentation.MainPresenter
+import com.google.firebase.iid.FirebaseInstanceId
+import com.google.firebase.messaging.FirebaseMessaging
+import timber.log.Timber
+
+suspend fun refreshFCMToken(presenter: MainPresenter) {
+    try {
+        val token = FirebaseInstanceId.getInstance().token
+        Timber.d("FCM token: $token")
+        presenter.refreshToken(token)
+    } catch (ex: Exception) {
+        Timber.d(ex, "Missing play services...")
+    }
+}
+
+fun invalidateFirebaseToken(token: String) {
+    FirebaseInstanceId.getInstance().deleteToken(token, FirebaseMessaging.INSTANCE_ID_SCOPE)
+}