mirror of
https://github.com/oxen-io/session-android.git
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feat: add support for firebase and split out google services as a dependency for only the play version of the app. Add support for requests in new pn server
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0x330a
16
app/src/play/AndroidManifest.xml
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16
app/src/play/AndroidManifest.xml
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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools">
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<application tools:node="merge">
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<service
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android:name="org.thoughtcrime.securesms.notifications.PushNotificationService"
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android:enabled="true"
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android:exported="false">
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<intent-filter>
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<action android:name="com.google.firebase.MESSAGING_EVENT" />
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</intent-filter>
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</service>
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</application>
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</manifest>
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@file:JvmName("FcmUtils")
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package org.thoughtcrime.securesms.notifications
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import com.google.android.gms.tasks.Task
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import com.google.firebase.iid.FirebaseInstanceId
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import com.google.firebase.iid.InstanceIdResult
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import kotlinx.coroutines.*
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fun getFcmInstanceId(body: (Task<InstanceIdResult>)->Unit): Job = MainScope().launch(Dispatchers.IO) {
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val task = FirebaseInstanceId.getInstance().instanceId
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while (!task.isComplete && isActive) {
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// wait for task to complete while we are active
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}
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if (!isActive) return@launch // don't 'complete' task if we were canceled
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body(task)
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}
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package org.thoughtcrime.securesms.notifications
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import android.content.Context
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import com.goterl.lazysodium.LazySodiumAndroid
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import com.goterl.lazysodium.SodiumAndroid
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import com.goterl.lazysodium.interfaces.AEAD
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import com.goterl.lazysodium.interfaces.Sign
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import com.goterl.lazysodium.utils.Key
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import com.goterl.lazysodium.utils.KeyPair
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import kotlinx.coroutines.Job
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import kotlinx.serialization.encodeToString
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import kotlinx.serialization.json.Json
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import kotlinx.serialization.json.decodeFromStream
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import nl.komponents.kovenant.Promise
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import nl.komponents.kovenant.functional.map
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import okhttp3.MediaType
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import okhttp3.Request
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import okhttp3.RequestBody
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import org.session.libsession.messaging.sending_receiving.notifications.PushNotificationAPI
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import org.session.libsession.messaging.sending_receiving.notifications.SubscriptionRequest
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import org.session.libsession.messaging.sending_receiving.notifications.SubscriptionResponse
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import org.session.libsession.snode.OnionRequestAPI
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import org.session.libsession.snode.SnodeAPI
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import org.session.libsession.snode.Version
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import org.session.libsession.utilities.TextSecurePreferences
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import org.session.libsession.utilities.TextSecurePreferences.Companion.getLocalNumber
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import org.session.libsignal.utilities.Base64
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import org.session.libsignal.utilities.Log
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import org.session.libsignal.utilities.Namespace
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import org.session.libsignal.utilities.retryIfNeeded
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import org.thoughtcrime.securesms.crypto.IdentityKeyUtil
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import org.thoughtcrime.securesms.crypto.KeyPairUtilities
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class FirebasePushManager(private val context: Context, private val prefs: TextSecurePreferences): PushManager {
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companion object {
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private const val maxRetryCount = 4
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private const val tokenExpirationInterval = 12 * 60 * 60 * 1000
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}
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private var firebaseInstanceIdJob: Job? = null
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private val sodium = LazySodiumAndroid(SodiumAndroid())
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private fun getOrCreateNotificationKey(): Key {
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if (IdentityKeyUtil.retrieve(context, IdentityKeyUtil.NOTIFICATION_KEY) == null) {
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// generate the key and store it
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val key = sodium.keygen(AEAD.Method.XCHACHA20_POLY1305_IETF)
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IdentityKeyUtil.save(context, IdentityKeyUtil.NOTIFICATION_KEY, key.asHexString)
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}
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return Key.fromHexString(
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IdentityKeyUtil.retrieve(
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context,
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IdentityKeyUtil.NOTIFICATION_KEY
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)
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)
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}
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override fun register(force: Boolean) {
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val currentInstanceIdJob = firebaseInstanceIdJob
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if (currentInstanceIdJob != null && currentInstanceIdJob.isActive && !force) return
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if (force && currentInstanceIdJob != null) {
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currentInstanceIdJob.cancel(null)
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}
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firebaseInstanceIdJob = getFcmInstanceId { task ->
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// context in here is Dispatchers.IO
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if (!task.isSuccessful) {
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Log.w(
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"Loki",
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"FirebaseInstanceId.getInstance().getInstanceId() failed." + task.exception
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)
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return@getFcmInstanceId
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}
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val token: String = task.result?.token ?: return@getFcmInstanceId
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val userPublicKey = getLocalNumber(context) ?: return@getFcmInstanceId
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val userEdKey = KeyPairUtilities.getUserED25519KeyPair(context) ?: return@getFcmInstanceId
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if (prefs.isUsingFCM()) {
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register(token, userPublicKey, userEdKey, force)
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} else {
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unregister(token)
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}
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}
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}
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override fun unregister(token: String) {
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TODO("Not yet implemented")
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}
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fun register(token: String, publicKey: String, userEd25519Key: KeyPair, force: Boolean, namespaces: List<Int> = listOf(Namespace.DEFAULT)) {
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val oldToken = TextSecurePreferences.getFCMToken(context)
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val lastUploadDate = TextSecurePreferences.getLastFCMUploadTime(context)
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if (!force && token == oldToken && System.currentTimeMillis() - lastUploadDate < tokenExpirationInterval) { return }
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val pnKey = getOrCreateNotificationKey()
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val timestamp = SnodeAPI.nowWithOffset / 1000 // get timestamp in ms -> s
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// if we want to support passing namespace list, here is the place to do it
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val sigData = "MONITOR${publicKey}${timestamp}1${namespaces.joinToString(separator = ",")}".encodeToByteArray()
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val signature = ByteArray(Sign.BYTES)
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sodium.cryptoSignDetached(signature, sigData, sigData.size.toLong(), userEd25519Key.secretKey.asBytes)
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val requestParameters = SubscriptionRequest (
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pubkey = publicKey,
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session_ed25519 = userEd25519Key.publicKey.asHexString,
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namespaces = listOf(Namespace.DEFAULT),
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data = true, // only permit data subscription for now (?)
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service = "firebase",
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sig_ts = timestamp,
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signature = Base64.encodeBytes(signature),
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service_info = mapOf("token" to token),
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enc_key = pnKey.asHexString,
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)
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val url = "${PushNotificationAPI.server}/subscribe"
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val body = RequestBody.create(MediaType.get("application/json"), Json.encodeToString(requestParameters))
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val request = Request.Builder().url(url).post(body)
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retryIfNeeded(maxRetryCount) {
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getResponseBody(request.build()).map { response ->
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if (response.isSuccess()) {
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TextSecurePreferences.setIsUsingFCM(context, true)
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TextSecurePreferences.setFCMToken(context, token)
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TextSecurePreferences.setLastFCMUploadTime(context, System.currentTimeMillis())
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} else {
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val (_, message) = response.errorInfo()
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Log.d("Loki", "Couldn't register for FCM due to error: $message.")
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}
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}.fail { exception ->
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Log.d("Loki", "Couldn't register for FCM due to error: ${exception}.")
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}
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}
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}
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private fun getResponseBody(request: Request): Promise<SubscriptionResponse, Exception> {
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return OnionRequestAPI.sendOnionRequest(request,
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PushNotificationAPI.server,
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PushNotificationAPI.serverPublicKey, Version.V4).map { response ->
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Json.decodeFromStream(response.body!!.inputStream())
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}
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}
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}
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@@ -0,0 +1,21 @@
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package org.thoughtcrime.securesms.notifications
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import android.content.Context
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import dagger.Module
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import dagger.Provides
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import dagger.hilt.InstallIn
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import dagger.hilt.android.qualifiers.ApplicationContext
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import dagger.hilt.components.SingletonComponent
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import org.session.libsession.utilities.TextSecurePreferences
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import javax.inject.Singleton
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@Module
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@InstallIn(SingletonComponent::class)
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object FirebasePushModule {
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@Provides
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@Singleton
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fun provideFirebasePushManager(
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@ApplicationContext context: Context,
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prefs: TextSecurePreferences,
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): PushManager = FirebasePushManager(context, prefs)
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}
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