package com.keylesspalace.tusky.service import android.app.Notification import android.app.NotificationChannel import android.app.NotificationManager import android.app.PendingIntent import android.app.Service import android.content.ClipData import android.content.ClipDescription import android.content.Context import android.content.Intent import android.os.Build import android.os.IBinder import android.os.Parcelable import android.util.Log import androidx.annotation.StringRes import androidx.core.app.NotificationCompat import androidx.core.app.ServiceCompat import at.connyduck.calladapter.networkresult.fold import com.keylesspalace.tusky.MainActivity import com.keylesspalace.tusky.R import com.keylesspalace.tusky.appstore.EventHub import com.keylesspalace.tusky.appstore.StatusComposedEvent import com.keylesspalace.tusky.appstore.StatusScheduledEvent import com.keylesspalace.tusky.components.drafts.DraftHelper import com.keylesspalace.tusky.components.notifications.NotificationHelper import com.keylesspalace.tusky.db.AccountManager import com.keylesspalace.tusky.di.Injectable import com.keylesspalace.tusky.entity.NewPoll import com.keylesspalace.tusky.entity.NewStatus import com.keylesspalace.tusky.entity.Status import com.keylesspalace.tusky.network.MastodonApi import dagger.android.AndroidInjection import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.Job import kotlinx.coroutines.SupervisorJob import kotlinx.coroutines.delay import kotlinx.coroutines.launch import kotlinx.parcelize.Parcelize import retrofit2.HttpException import java.util.concurrent.ConcurrentHashMap import java.util.concurrent.TimeUnit import javax.inject.Inject class SendStatusService : Service(), Injectable { @Inject lateinit var mastodonApi: MastodonApi @Inject lateinit var accountManager: AccountManager @Inject lateinit var eventHub: EventHub @Inject lateinit var draftHelper: DraftHelper private val supervisorJob = SupervisorJob() private val serviceScope = CoroutineScope(Dispatchers.Main + supervisorJob) private val statusesToSend = ConcurrentHashMap() private val sendJobs = ConcurrentHashMap() private val notificationManager by lazy { getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager } override fun onCreate() { AndroidInjection.inject(this) super.onCreate() } override fun onBind(intent: Intent): IBinder? = null override fun onStartCommand(intent: Intent, flags: Int, startId: Int): Int { if (intent.hasExtra(KEY_STATUS)) { val statusToSend = intent.getParcelableExtra(KEY_STATUS) ?: throw IllegalStateException("SendStatusService started without $KEY_STATUS extra") if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { val channel = NotificationChannel(CHANNEL_ID, getString(R.string.send_post_notification_channel_name), NotificationManager.IMPORTANCE_LOW) notificationManager.createNotificationChannel(channel) } var notificationText = statusToSend.warningText if (notificationText.isBlank()) { notificationText = statusToSend.text } val builder = NotificationCompat.Builder(this, CHANNEL_ID) .setSmallIcon(R.drawable.ic_notify) .setContentTitle(getString(R.string.send_post_notification_title)) .setContentText(notificationText) .setProgress(1, 0, true) .setOngoing(true) .setColor(getColor(R.color.notification_color)) .addAction(0, getString(android.R.string.cancel), cancelSendingIntent(sendingNotificationId)) if (statusesToSend.size == 0 || Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_DETACH) startForeground(sendingNotificationId, builder.build()) } else { notificationManager.notify(sendingNotificationId, builder.build()) } statusesToSend[sendingNotificationId] = statusToSend sendStatus(sendingNotificationId--) } else { if (intent.hasExtra(KEY_CANCEL)) { cancelSending(intent.getIntExtra(KEY_CANCEL, 0)) } } return START_NOT_STICKY } private fun sendStatus(statusId: Int) { // when statusToSend == null, sending has been canceled val statusToSend = statusesToSend[statusId] ?: return // when account == null, user has logged out, cancel sending val account = accountManager.getAccountById(statusToSend.accountId) if (account == null) { statusesToSend.remove(statusId) notificationManager.cancel(statusId) stopSelfWhenDone() return } statusToSend.retries++ sendJobs[statusId] = serviceScope.launch { try { var mediaCheckRetries = 0 while (statusToSend.mediaProcessed.any { !it }) { delay(1000L * mediaCheckRetries) statusToSend.mediaProcessed.forEachIndexed { index, processed -> if (!processed) { // Mastodon returns 206 if the media was not yet processed statusToSend.mediaProcessed[index] = mastodonApi.getMedia(statusToSend.mediaIds[index]).code() == 200 } } mediaCheckRetries ++ } } catch (e: Exception) { Log.w(TAG, "failed getting media status", e) retrySending(statusId) return@launch } val newStatus = NewStatus( statusToSend.text, statusToSend.warningText, statusToSend.inReplyToId, statusToSend.visibility, statusToSend.sensitive, statusToSend.mediaIds, statusToSend.scheduledAt, statusToSend.poll ) mastodonApi.createStatus( "Bearer " + account.accessToken, account.domain, statusToSend.idempotencyKey, newStatus ).fold({ sentStatus -> statusesToSend.remove(statusId) // If the status was loaded from a draft, delete the draft and associated media files. if (statusToSend.draftId != 0) { draftHelper.deleteDraftAndAttachments(statusToSend.draftId) } val scheduled = !statusToSend.scheduledAt.isNullOrEmpty() if (scheduled) { eventHub.dispatch(StatusScheduledEvent(sentStatus)) } else { eventHub.dispatch(StatusComposedEvent(sentStatus)) } notificationManager.cancel(statusId) }, { throwable -> Log.w(TAG, "failed sending status", throwable) if (throwable is HttpException) { // the server refused to accept the status, save status & show error message statusesToSend.remove(statusId) saveStatusToDrafts(statusToSend) val notification = buildDraftNotification( R.string.send_post_notification_error_title, R.string.send_post_notification_saved_content, statusToSend.accountId, statusId ) notificationManager.cancel(statusId) notificationManager.notify(errorNotificationId--, notification) } else { // a network problem occurred, let's retry sending the status retrySending(statusId) } }) stopSelfWhenDone() } } private suspend fun retrySending(statusId: Int) { // when statusToSend == null, sending has been canceled val statusToSend = statusesToSend[statusId] ?: return val backoff = TimeUnit.SECONDS.toMillis(statusToSend.retries.toLong()).coerceAtMost(MAX_RETRY_INTERVAL) delay(backoff) sendStatus(statusId) } private fun stopSelfWhenDone() { if (statusesToSend.isEmpty()) { ServiceCompat.stopForeground(this@SendStatusService, ServiceCompat.STOP_FOREGROUND_REMOVE) stopSelf() } } private fun cancelSending(statusId: Int) = serviceScope.launch { val statusToCancel = statusesToSend.remove(statusId) if (statusToCancel != null) { val sendJob = sendJobs.remove(statusId) sendJob?.cancel() saveStatusToDrafts(statusToCancel) val notification = buildDraftNotification( R.string.send_post_notification_cancel_title, R.string.send_post_notification_saved_content, statusToCancel.accountId, statusId ) notificationManager.notify(statusId, notification) delay(5000) stopSelfWhenDone() } } private suspend fun saveStatusToDrafts(status: StatusToSend) { draftHelper.saveDraft( draftId = status.draftId, accountId = status.accountId, inReplyToId = status.inReplyToId, content = status.text, contentWarning = status.warningText, sensitive = status.sensitive, visibility = Status.Visibility.byString(status.visibility), mediaUris = status.mediaUris, mediaDescriptions = status.mediaDescriptions, poll = status.poll, failedToSend = true, scheduledAt = status.scheduledAt ) } private fun cancelSendingIntent(statusId: Int): PendingIntent { val intent = Intent(this, SendStatusService::class.java) intent.putExtra(KEY_CANCEL, statusId) return PendingIntent.getService( this, statusId, intent, NotificationHelper.pendingIntentFlags(false) ) } private fun buildDraftNotification( @StringRes title: Int, @StringRes content: Int, accountId: Long, statusId: Int ): Notification { val intent = Intent(this, MainActivity::class.java) intent.putExtra(NotificationHelper.ACCOUNT_ID, accountId) intent.putExtra(MainActivity.OPEN_DRAFTS, true) val pendingIntent = PendingIntent.getActivity( this, statusId, intent, NotificationHelper.pendingIntentFlags(false) ) return NotificationCompat.Builder(this@SendStatusService, CHANNEL_ID) .setSmallIcon(R.drawable.ic_notify) .setContentTitle(getString(title)) .setContentText(getString(content)) .setColor(getColor(R.color.notification_color)) .setAutoCancel(true) .setOngoing(false) .setContentIntent(pendingIntent) .build() } override fun onDestroy() { super.onDestroy() supervisorJob.cancel() } companion object { private const val TAG = "SendStatusService" private const val KEY_STATUS = "status" private const val KEY_CANCEL = "cancel_id" private const val CHANNEL_ID = "send_toots" private val MAX_RETRY_INTERVAL = TimeUnit.MINUTES.toMillis(1) private var sendingNotificationId = -1 // use negative ids to not clash with other notis private var errorNotificationId = Int.MIN_VALUE // use even more negative ids to not clash with other notis fun sendStatusIntent( context: Context, statusToSend: StatusToSend ): Intent { val intent = Intent(context, SendStatusService::class.java) intent.putExtra(KEY_STATUS, statusToSend) if (statusToSend.mediaUris.isNotEmpty()) { // forward uri permissions intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION) val uriClip = ClipData( ClipDescription("Status Media", arrayOf("image/*", "video/*")), ClipData.Item(statusToSend.mediaUris[0]) ) statusToSend.mediaUris .drop(1) .forEach { mediaUri -> uriClip.addItem(ClipData.Item(mediaUri)) } intent.clipData = uriClip } return intent } } } @Parcelize data class StatusToSend( val text: String, val warningText: String, val visibility: String, val sensitive: Boolean, val mediaIds: List, val mediaUris: List, val mediaDescriptions: List, val scheduledAt: String?, val inReplyToId: String?, val poll: NewPoll?, val replyingStatusContent: String?, val replyingStatusAuthorUsername: String?, val accountId: Long, val draftId: Int, val idempotencyKey: String, var retries: Int, val mediaProcessed: MutableList ) : Parcelable