Refactor and cleanup backupv2 media restore.

2026-04-22 01:40:07 +01:00 · 2024-09-11 12:38:19 -04:00
parent baa6032770
commit 816006c67e
25 changed files with 498 additions and 671 deletions
--- a/app/src/main/java/org/thoughtcrime/securesms/attachments/DatabaseAttachment.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/attachments/DatabaseAttachment.kt
@@ -29,9 +29,6 @@ class DatabaseAttachment : Attachment {
  @JvmField
  val archiveCdn: Int

-  @JvmField
-  val archiveThumbnailCdn: Int
-
  @JvmField
  val archiveMediaName: String?

@@ -78,7 +75,6 @@ class DatabaseAttachment : Attachment {
    uploadTimestamp: Long,
    dataHash: String?,
    archiveCdn: Int,
-    archiveThumbnailCdn: Int,
    archiveMediaName: String?,
    archiveMediaId: String?,
    thumbnailRestoreState: AttachmentTable.ThumbnailRestoreState,
@@ -117,7 +113,6 @@ class DatabaseAttachment : Attachment {
    this.hasArchiveThumbnail = hasArchiveThumbnail
    this.displayOrder = displayOrder
    this.archiveCdn = archiveCdn
-    this.archiveThumbnailCdn = archiveThumbnailCdn
    this.archiveMediaName = archiveMediaName
    this.archiveMediaId = archiveMediaId
    this.thumbnailRestoreState = thumbnailRestoreState
@@ -131,7 +126,6 @@ class DatabaseAttachment : Attachment {
    mmsId = parcel.readLong()
    displayOrder = parcel.readInt()
    archiveCdn = parcel.readInt()
-    archiveThumbnailCdn = parcel.readInt()
    archiveMediaName = parcel.readString()
    archiveMediaId = parcel.readString()
    hasArchiveThumbnail = ParcelUtil.readBoolean(parcel)
@@ -147,7 +141,6 @@ class DatabaseAttachment : Attachment {
    dest.writeLong(mmsId)
    dest.writeInt(displayOrder)
    dest.writeInt(archiveCdn)
-    dest.writeInt(archiveThumbnailCdn)
    dest.writeString(archiveMediaName)
    dest.writeString(archiveMediaId)
    ParcelUtil.writeBoolean(dest, hasArchiveThumbnail)
--- a/app/src/main/java/org/thoughtcrime/securesms/attachments/InvalidAttachmentException.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/attachments/InvalidAttachmentException.kt
@@ -0,0 +1,14 @@
+/*
+ * Copyright 2024 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.thoughtcrime.securesms.attachments
+
+/**
+ * Thrown by jobs unable to rehydrate enough attachment information to download it.
+ */
+class InvalidAttachmentException : Exception {
+  constructor(s: String?) : super(s)
+  constructor(e: Exception?) : super(e)
+}
--- a/app/src/main/java/org/thoughtcrime/securesms/backup/v2/BackupRestoreManager.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/backup/v2/BackupRestoreManager.kt
@@ -30,6 +30,7 @@ object BackupRestoreManager {
    SignalExecutors.BOUNDED.execute {
      synchronized(this) {
        val restoringAttachments = messageRecords
+          .asSequence()
          .mapNotNull { (it as? MmsMessageRecord?)?.slideDeck?.slides }
          .flatten()
          .mapNotNull { it.asAttachment() as? DatabaseAttachment }
@@ -41,10 +42,11 @@ object BackupRestoreManager {
          .toSet()

        reprioritizedAttachments += restoringAttachments.map { it.first }
-        val thumbnailJobs = restoringAttachments.map {
-          val (attachmentId, mmsId) = it
+
+        val thumbnailJobs = restoringAttachments.map { (attachmentId, mmsId) ->
          RestoreAttachmentThumbnailJob(attachmentId = attachmentId, messageId = mmsId, highPriority = true)
        }
+
        if (thumbnailJobs.isNotEmpty()) {
          AppDependencies.jobManager.addAll(thumbnailJobs)
        }
--- a/app/src/main/java/org/thoughtcrime/securesms/backup/v2/database/DatabaseAttachmentBackupExtensions.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/backup/v2/database/DatabaseAttachmentBackupExtensions.kt
@@ -0,0 +1,129 @@
+/*
+ * Copyright 2024 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.thoughtcrime.securesms.backup.v2.database
+
+import android.text.TextUtils
+import org.signal.core.util.Base64
+import org.thoughtcrime.securesms.attachments.DatabaseAttachment
+import org.thoughtcrime.securesms.attachments.InvalidAttachmentException
+import org.thoughtcrime.securesms.backup.v2.BackupRepository
+import org.thoughtcrime.securesms.backup.v2.BackupRepository.getThumbnailMediaName
+import org.thoughtcrime.securesms.keyvalue.SignalStore
+import org.thoughtcrime.securesms.util.Util
+import org.whispersystems.signalservice.api.backup.MediaName
+import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer
+import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId
+import java.io.IOException
+import java.util.Optional
+
+/**
+ * Creates a [SignalServiceAttachmentPointer] for the archived attachment of the given [DatabaseAttachment].
+ */
+@Throws(InvalidAttachmentException::class)
+fun DatabaseAttachment.createArchiveAttachmentPointer(useArchiveCdn: Boolean): SignalServiceAttachmentPointer {
+  if (remoteKey.isNullOrBlank()) {
+    throw InvalidAttachmentException("empty encrypted key")
+  }
+
+  if (remoteDigest == null) {
+    throw InvalidAttachmentException("no digest")
+  }
+
+  return try {
+    val (remoteId, cdnNumber) = if (useArchiveCdn) {
+      val backupKey = SignalStore.svr.getOrCreateMasterKey().deriveBackupKey()
+      val backupDirectories = BackupRepository.getCdnBackupDirectories().successOrThrow()
+
+      val id = SignalServiceAttachmentRemoteId.Backup(
+        backupDir = backupDirectories.backupDir,
+        mediaDir = backupDirectories.mediaDir,
+        mediaId = backupKey.deriveMediaId(MediaName(archiveMediaName!!)).encode()
+      )
+
+      id to archiveCdn
+    } else {
+      if (remoteLocation.isNullOrEmpty()) {
+        throw InvalidAttachmentException("empty content id")
+      }
+
+      SignalServiceAttachmentRemoteId.from(remoteLocation) to cdn.cdnNumber
+    }
+
+    val key = Base64.decode(remoteKey)
+
+    SignalServiceAttachmentPointer(
+      cdnNumber = cdnNumber,
+      remoteId = remoteId,
+      contentType = null,
+      key = key,
+      size = Optional.of(Util.toIntExact(size)),
+      preview = Optional.empty(),
+      width = 0,
+      height = 0,
+      digest = Optional.ofNullable(remoteDigest),
+      incrementalDigest = Optional.ofNullable(getIncrementalDigest()),
+      incrementalMacChunkSize = incrementalMacChunkSize,
+      fileName = Optional.ofNullable(fileName),
+      voiceNote = voiceNote,
+      isBorderless = borderless,
+      isGif = videoGif,
+      caption = Optional.empty(),
+      blurHash = Optional.ofNullable(blurHash).map { it.hash },
+      uploadTimestamp = uploadTimestamp,
+      uuid = uuid
+    )
+  } catch (e: IOException) {
+    throw InvalidAttachmentException(e)
+  } catch (e: ArithmeticException) {
+    throw InvalidAttachmentException(e)
+  }
+}
+
+/**
+ * Creates a [SignalServiceAttachmentPointer] for an archived thumbnail of the given [DatabaseAttachment].
+ */
+@Throws(InvalidAttachmentException::class)
+fun DatabaseAttachment.createArchiveThumbnailPointer(): SignalServiceAttachmentPointer {
+  if (TextUtils.isEmpty(remoteKey)) {
+    throw InvalidAttachmentException("empty encrypted key")
+  }
+
+  val backupKey = SignalStore.svr.getOrCreateMasterKey().deriveBackupKey()
+  val backupDirectories = BackupRepository.getCdnBackupDirectories().successOrThrow()
+  return try {
+    val key = backupKey.deriveThumbnailTransitKey(getThumbnailMediaName())
+    val mediaId = backupKey.deriveMediaId(getThumbnailMediaName()).encode()
+    SignalServiceAttachmentPointer(
+      cdnNumber = archiveCdn,
+      remoteId = SignalServiceAttachmentRemoteId.Backup(
+        backupDir = backupDirectories.backupDir,
+        mediaDir = backupDirectories.mediaDir,
+        mediaId = mediaId
+      ),
+      contentType = null,
+      key = key,
+      size = Optional.empty(),
+      preview = Optional.empty(),
+      width = 0,
+      height = 0,
+      digest = Optional.empty(),
+      incrementalDigest = Optional.empty(),
+      incrementalMacChunkSize = incrementalMacChunkSize,
+      fileName = Optional.empty(),
+      voiceNote = voiceNote,
+      isBorderless = borderless,
+      isGif = videoGif,
+      caption = Optional.empty(),
+      blurHash = Optional.ofNullable(blurHash).map { it.hash },
+      uploadTimestamp = uploadTimestamp,
+      uuid = uuid
+    )
+  } catch (e: IOException) {
+    throw InvalidAttachmentException(e)
+  } catch (e: ArithmeticException) {
+    throw InvalidAttachmentException(e)
+  }
+}
--- a/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/backup/InternalBackupPlaygroundFragment.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/backup/InternalBackupPlaygroundFragment.kt
@@ -184,7 +184,8 @@ class InternalBackupPlaygroundFragment : ComposeFragment() {
          deleteArchivedMedia = { viewModel.deleteArchivedMedia(it) },
          batchArchiveAttachmentMedia = { viewModel.archiveAttachmentMedia(it) },
          batchDeleteBackupAttachmentMedia = { viewModel.deleteArchivedMedia(it) },
-          restoreArchivedMedia = { viewModel.restoreArchivedMedia(it) }
+          restoreArchivedMedia = { viewModel.restoreArchivedMedia(it, asThumbnail = false) },
+          restoreArchivedMediaThumbnail = { viewModel.restoreArchivedMedia(it, asThumbnail = true) }
        )
      }
    )
@@ -450,7 +451,8 @@ fun MediaList(
  deleteArchivedMedia: (InternalBackupPlaygroundViewModel.BackupAttachment) -> Unit,
  batchArchiveAttachmentMedia: (Set<AttachmentId>) -> Unit,
  batchDeleteBackupAttachmentMedia: (Set<AttachmentId>) -> Unit,
-  restoreArchivedMedia: (InternalBackupPlaygroundViewModel.BackupAttachment) -> Unit
+  restoreArchivedMedia: (InternalBackupPlaygroundViewModel.BackupAttachment) -> Unit,
+  restoreArchivedMediaThumbnail: (InternalBackupPlaygroundViewModel.BackupAttachment) -> Unit
 ) {
  if (!enabled) {
    Text(
@@ -553,6 +555,14 @@ fun MediaList(
                  }
                )

+                DropdownMenuItem(
+                  text = { Text("Pseudo Restore Thumbnail") },
+                  onClick = {
+                    selectionState = selectionState.copy(expandedOption = null)
+                    restoreArchivedMediaThumbnail(attachment)
+                  }
+                )
+
                if (attachment.dbAttachment.dataHash != null && attachment.state == InternalBackupPlaygroundViewModel.BackupAttachment.State.UPLOADED_UNDOWNLOADED) {
                  DropdownMenuItem(
                    text = { Text("Re-copy with hash") },
--- a/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/backup/InternalBackupPlaygroundViewModel.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/components/settings/app/internal/backup/InternalBackupPlaygroundViewModel.kt
@@ -32,11 +32,12 @@ import org.thoughtcrime.securesms.database.MessageType
 import org.thoughtcrime.securesms.database.SignalDatabase
 import org.thoughtcrime.securesms.dependencies.AppDependencies
 import org.thoughtcrime.securesms.jobs.ArchiveAttachmentJob
-import org.thoughtcrime.securesms.jobs.AttachmentDownloadJob
 import org.thoughtcrime.securesms.jobs.AttachmentUploadJob
 import org.thoughtcrime.securesms.jobs.BackupMessagesJob
 import org.thoughtcrime.securesms.jobs.BackupRestoreJob
 import org.thoughtcrime.securesms.jobs.BackupRestoreMediaJob
+import org.thoughtcrime.securesms.jobs.RestoreAttachmentJob
+import org.thoughtcrime.securesms.jobs.RestoreAttachmentThumbnailJob
 import org.thoughtcrime.securesms.jobs.RestoreLocalAttachmentJob
 import org.thoughtcrime.securesms.jobs.SyncArchivedMediaJob
 import org.thoughtcrime.securesms.keyvalue.SignalStore
@@ -346,7 +347,7 @@ class InternalBackupPlaygroundViewModel : ViewModel() {
      }
  }

-  fun restoreArchivedMedia(attachment: BackupAttachment) {
+  fun restoreArchivedMedia(attachment: BackupAttachment, asThumbnail: Boolean) {
    disposables += Completable
      .fromCallable {
        val recipientId = SignalStore.releaseChannel.releaseChannelRecipientId!!
@@ -365,20 +366,29 @@ class InternalBackupPlaygroundViewModel : ViewModel() {
        val insertMessage = SignalDatabase.messages.insertMessageInbox(message, threadId).get()

        SignalDatabase.attachments.debugCopyAttachmentForArchiveRestore(
-          insertMessage.messageId,
-          attachment.dbAttachment
+          mmsId = insertMessage.messageId,
+          attachment = attachment.dbAttachment,
+          forThumbnail = asThumbnail
        )

        val archivedAttachment = SignalDatabase.attachments.getAttachmentsForMessage(insertMessage.messageId).first()

-        AppDependencies.jobManager.add(
-          AttachmentDownloadJob(
-            messageId = insertMessage.messageId,
-            attachmentId = archivedAttachment.attachmentId,
-            manual = false,
-            forceArchiveDownload = true
+        if (asThumbnail) {
+          AppDependencies.jobManager.add(
+            RestoreAttachmentThumbnailJob(
+              messageId = insertMessage.messageId,
+              attachmentId = archivedAttachment.attachmentId,
+              highPriority = false
+            )
          )
-        )
+        } else {
+          AppDependencies.jobManager.add(
+            RestoreAttachmentJob(
+              messageId = insertMessage.messageId,
+              attachmentId = archivedAttachment.attachmentId
+            )
+          )
+        }
      }
      .subscribeOn(Schedulers.io())
      .observeOn(Schedulers.single())
--- a/app/src/main/java/org/thoughtcrime/securesms/database/AttachmentTable.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/database/AttachmentTable.kt
@@ -55,7 +55,6 @@ import org.signal.core.util.requireBlob
 import org.signal.core.util.requireBoolean
 import org.signal.core.util.requireInt
 import org.signal.core.util.requireLong
-import org.signal.core.util.requireLongOrNull
 import org.signal.core.util.requireNonNullBlob
 import org.signal.core.util.requireNonNullString
 import org.signal.core.util.requireObject
@@ -98,10 +97,12 @@ import org.thoughtcrime.securesms.util.StorageUtil
 import org.thoughtcrime.securesms.util.Util
 import org.thoughtcrime.securesms.video.EncryptedMediaDataSource
 import org.whispersystems.signalservice.api.attachment.AttachmentUploadResult
+import org.whispersystems.signalservice.api.backup.MediaId
 import org.whispersystems.signalservice.api.crypto.AttachmentCipherOutputStream
 import org.whispersystems.signalservice.api.util.UuidUtil
 import org.whispersystems.signalservice.internal.crypto.PaddingInputStream
 import org.whispersystems.signalservice.internal.util.JsonUtil
+import java.io.ByteArrayInputStream
 import java.io.File
 import java.io.FileNotFoundException
 import java.io.IOException
@@ -163,7 +164,6 @@ class AttachmentTable(
    const val ARCHIVE_MEDIA_NAME = "archive_media_name"
    const val ARCHIVE_MEDIA_ID = "archive_media_id"
    const val ARCHIVE_THUMBNAIL_MEDIA_ID = "archive_thumbnail_media_id"
-    const val ARCHIVE_THUMBNAIL_CDN = "archive_thumbnail_cdn"
    const val ARCHIVE_TRANSFER_FILE = "archive_transfer_file"
    const val ARCHIVE_TRANSFER_STATE = "archive_transfer_state"
    const val THUMBNAIL_RESTORE_STATE = "thumbnail_restore_state"
@@ -219,7 +219,6 @@ class AttachmentTable(
      DATA_HASH_START,
      DATA_HASH_END,
      ARCHIVE_CDN,
-      ARCHIVE_THUMBNAIL_CDN,
      ARCHIVE_MEDIA_NAME,
      ARCHIVE_MEDIA_ID,
      ARCHIVE_TRANSFER_FILE,
@@ -269,7 +268,6 @@ class AttachmentTable(
        $ARCHIVE_MEDIA_ID TEXT DEFAULT NULL,
        $ARCHIVE_TRANSFER_FILE TEXT DEFAULT NULL,
        $ARCHIVE_TRANSFER_STATE INTEGER DEFAULT ${ArchiveTransferState.NONE.value},
-        $ARCHIVE_THUMBNAIL_CDN INTEGER DEFAULT 0,
        $ARCHIVE_THUMBNAIL_MEDIA_ID TEXT DEFAULT NULL,
        $THUMBNAIL_FILE TEXT DEFAULT NULL,
        $THUMBNAIL_RANDOM BLOB DEFAULT NULL,
@@ -499,29 +497,16 @@ class AttachmentTable(
      }
  }

-  fun getRestorableAttachments(batchSize: Int): List<DatabaseAttachment> {
+  fun getRestorableAttachments(batchSize: Int): List<RestorableAttachment> {
    return readableDatabase
-      .select(*PROJECTION)
+      .select(ID, MESSAGE_ID, DATA_SIZE, REMOTE_DIGEST, REMOTE_KEY)
      .from(TABLE_NAME)
      .where("$TRANSFER_STATE = ?", TRANSFER_NEEDS_RESTORE)
      .limit(batchSize)
      .orderBy("$ID DESC")
      .run()
      .readToList {
-        it.readAttachment()
-      }
-  }
-
-  fun getLocalRestorableAttachments(batchSize: Int): List<LocalRestorableAttachment> {
-    return readableDatabase
-      .select(*PROJECTION)
-      .from(TABLE_NAME)
-      .where("$TRANSFER_STATE = ?", TRANSFER_NEEDS_RESTORE)
-      .limit(batchSize)
-      .orderBy("$ID DESC")
-      .run()
-      .readToList {
-        LocalRestorableAttachment(
+        RestorableAttachment(
          attachmentId = AttachmentId(it.requireLong(ID)),
          mmsId = it.requireLong(MESSAGE_ID),
          size = it.requireLong(DATA_SIZE),
@@ -871,17 +856,6 @@ class AttachmentTable(
    notifyConversationListeners(threadId)
  }

-  fun setThumbnailTransferState(messageId: Long, attachmentId: AttachmentId, thumbnailRestoreState: ThumbnailRestoreState) {
-    writableDatabase
-      .update(TABLE_NAME)
-      .values(THUMBNAIL_RESTORE_STATE to thumbnailRestoreState.value)
-      .where("$ID = ?", attachmentId.id)
-      .run()
-
-    val threadId = messages.getThreadIdForMessage(messageId)
-    notifyConversationListeners(threadId)
-  }
-
  fun setTransferProgressFailed(attachmentId: AttachmentId, mmsId: Long) {
    writableDatabase
      .update(TABLE_NAME)
@@ -912,30 +886,46 @@ class AttachmentTable(
    notifyConversationListeners(messages.getThreadIdForMessage(mmsId))
  }

-  fun setRestoreInProgressTransferState(restorableAttachments: List<LocalRestorableAttachment>) {
-    setRestoreTransferState(
-      restorableAttachments = restorableAttachments,
-      prefix = "$TRANSFER_STATE = $TRANSFER_NEEDS_RESTORE",
-      state = TRANSFER_RESTORE_IN_PROGRESS
-    )
-  }
+  fun setThumbnailRestoreState(thumbnailAttachmentIds: List<AttachmentId>, thumbnailRestoreState: ThumbnailRestoreState) {
+    val prefix: String = when (thumbnailRestoreState) {
+      ThumbnailRestoreState.IN_PROGRESS -> {
+        "($THUMBNAIL_RESTORE_STATE = ${ThumbnailRestoreState.NEEDS_RESTORE.value} OR $THUMBNAIL_RESTORE_STATE = ${ThumbnailRestoreState.IN_PROGRESS.value}) AND"
+      }
+      else -> ""
+    }

-  fun setRestoreFailedTransferState(notRestorableAttachments: List<LocalRestorableAttachment>) {
-    setRestoreTransferState(
-      restorableAttachments = notRestorableAttachments,
-      prefix = "$TRANSFER_STATE != $TRANSFER_PROGRESS_PERMANENT_FAILURE",
-      state = TRANSFER_PROGRESS_FAILED
+    val setQueries = SqlUtil.buildCollectionQuery(
+      column = ID,
+      values = thumbnailAttachmentIds.map { it.id },
+      prefix = prefix
    )
-  }

-  private fun setRestoreTransferState(restorableAttachments: List<LocalRestorableAttachment>, prefix: String, state: Int) {
    writableDatabase.withinTransaction {
-      val setQueries = SqlUtil.buildCollectionQuery(
-        column = ID,
-        values = restorableAttachments.map { it.attachmentId.id },
-        prefix = "$prefix AND"
-      )
+      setQueries.forEach { query ->
+        writableDatabase
+          .update(TABLE_NAME)
+          .values(THUMBNAIL_RESTORE_STATE to thumbnailRestoreState.value)
+          .where(query.where, query.whereArgs)
+          .run()
+      }
+    }
+  }

+  fun setRestoreTransferState(restorableAttachments: Collection<RestorableAttachment>, state: Int) {
+    val prefix = when (state) {
+      TRANSFER_RESTORE_OFFLOADED -> "$TRANSFER_STATE != $TRANSFER_PROGRESS_PERMANENT_FAILURE AND"
+      TRANSFER_RESTORE_IN_PROGRESS -> "($TRANSFER_STATE = $TRANSFER_NEEDS_RESTORE OR $TRANSFER_STATE = $TRANSFER_RESTORE_OFFLOADED) AND"
+      TRANSFER_PROGRESS_FAILED -> "$TRANSFER_STATE != $TRANSFER_PROGRESS_PERMANENT_FAILURE AND"
+      else -> ""
+    }
+
+    val setQueries = SqlUtil.buildCollectionQuery(
+      column = ID,
+      values = restorableAttachments.map { it.attachmentId.id },
+      prefix = prefix
+    )
+
+    writableDatabase.withinTransaction {
      setQueries.forEach { query ->
        writableDatabase
          .update(TABLE_NAME)
@@ -943,23 +933,6 @@ class AttachmentTable(
          .where(query.where, query.whereArgs)
          .run()
      }
-
-      val threadQueries = SqlUtil.buildCollectionQuery(
-        column = MessageTable.ID,
-        values = restorableAttachments.map { it.mmsId }
-      )
-
-      val threads = mutableSetOf<Long>()
-      threadQueries.forEach { query ->
-        threads += readableDatabase
-          .select("DISTINCT ${MessageTable.THREAD_ID}")
-          .from(MessageTable.TABLE_NAME)
-          .where(query.where, query.whereArgs)
-          .run()
-          .readToList { it.requireLongOrNull(MessageTable.THREAD_ID) ?: -1 }
-      }
-
-      notifyConversationListeners(threads)
    }
  }

@@ -1103,6 +1076,30 @@ class AttachmentTable(
    }
  }

+  fun finalizeAttachmentThumbnailAfterUpload(
+    attachmentId: AttachmentId,
+    archiveMediaId: String,
+    archiveThumbnailMediaId: MediaId,
+    data: ByteArray
+  ) {
+    Log.i(TAG, "[finalizeAttachmentThumbnailAfterUpload] Finalizing archive data for $attachmentId thumbnail.")
+    val fileWriteResult: DataFileWriteResult = writeToDataFile(newDataFile(context), ByteArrayInputStream(data), TransformProperties.empty())
+
+    writableDatabase.withinTransaction { db ->
+      val values = contentValuesOf(
+        THUMBNAIL_FILE to fileWriteResult.file.absolutePath,
+        THUMBNAIL_RANDOM to fileWriteResult.random,
+        THUMBNAIL_RESTORE_STATE to ThumbnailRestoreState.FINISHED.value,
+        ARCHIVE_THUMBNAIL_MEDIA_ID to archiveThumbnailMediaId.encode()
+      )
+
+      db.update(TABLE_NAME)
+        .values(values)
+        .where("$ARCHIVE_MEDIA_ID = ? OR $ID = ?", archiveMediaId, attachmentId)
+        .run()
+    }
+  }
+
  /**
   * Needs to be called after an attachment is successfully uploaded. Writes metadata around it's final remote location, as well as calculates
   * it's ending hash, which is critical for backups.
@@ -1334,7 +1331,8 @@ class AttachmentTable(

  fun debugCopyAttachmentForArchiveRestore(
    mmsId: Long,
-    attachment: DatabaseAttachment
+    attachment: DatabaseAttachment,
+    forThumbnail: Boolean
  ) {
    val copy =
      """
@@ -1365,7 +1363,9 @@ class AttachmentTable(
          $DATA_HASH_END,
          $ARCHIVE_MEDIA_ID,
          $ARCHIVE_MEDIA_NAME,
-          $ARCHIVE_CDN
+          $ARCHIVE_CDN,
+          $ARCHIVE_THUMBNAIL_MEDIA_ID,
+          $THUMBNAIL_RESTORE_STATE
        )
      SELECT
          $mmsId,
@@ -1393,7 +1393,9 @@ class AttachmentTable(
          $DATA_HASH_END,
          "${attachment.archiveMediaId}",
          "${attachment.archiveMediaName}",
-          ${attachment.archiveCdn}
+          ${attachment.archiveCdn},
+          $ARCHIVE_THUMBNAIL_MEDIA_ID,
+          ${if (forThumbnail) ThumbnailRestoreState.NEEDS_RESTORE.value else ThumbnailRestoreState.NONE.value}
        FROM $TABLE_NAME
        WHERE $ID = ${attachment.attachmentId.id}
    """
@@ -1667,7 +1669,6 @@ class AttachmentTable(
              uploadTimestamp = jsonObject.getLong(UPLOAD_TIMESTAMP),
              dataHash = jsonObject.getString(DATA_HASH_END),
              archiveCdn = jsonObject.getInt(ARCHIVE_CDN),
-              archiveThumbnailCdn = jsonObject.getInt(ARCHIVE_THUMBNAIL_CDN),
              archiveMediaName = jsonObject.getString(ARCHIVE_MEDIA_NAME),
              archiveMediaId = jsonObject.getString(ARCHIVE_MEDIA_ID),
              hasArchiveThumbnail = !TextUtils.isEmpty(jsonObject.getString(THUMBNAIL_FILE)),
@@ -1745,11 +1746,10 @@ class AttachmentTable(
  fun updateArchiveCdnByMediaId(archiveMediaId: String, archiveCdn: Int): Int {
    return writableDatabase.rawQuery(
      "UPDATE $TABLE_NAME SET " +
-        "$ARCHIVE_THUMBNAIL_CDN = CASE WHEN $ARCHIVE_THUMBNAIL_MEDIA_ID = ? THEN ? ELSE $ARCHIVE_THUMBNAIL_CDN END," +
        "$ARCHIVE_CDN = CASE WHEN $ARCHIVE_MEDIA_ID = ? THEN ? ELSE $ARCHIVE_CDN END " +
        "WHERE $ARCHIVE_MEDIA_ID = ? OR $ARCHIVE_THUMBNAIL_MEDIA_ID = ? " +
-        "RETURNING $ARCHIVE_CDN, $ARCHIVE_THUMBNAIL_CDN",
-      SqlUtil.buildArgs(archiveMediaId, archiveCdn, archiveMediaId, archiveCdn, archiveMediaId, archiveMediaId)
+        "RETURNING $ARCHIVE_CDN",
+      SqlUtil.buildArgs(archiveMediaId, archiveCdn, archiveMediaId, archiveMediaId)
    ).count
  }

@@ -2269,7 +2269,6 @@ class AttachmentTable(
      uploadTimestamp = cursor.requireLong(UPLOAD_TIMESTAMP),
      dataHash = cursor.requireString(DATA_HASH_END),
      archiveCdn = cursor.requireInt(ARCHIVE_CDN),
-      archiveThumbnailCdn = cursor.requireInt(ARCHIVE_THUMBNAIL_CDN),
      archiveMediaName = cursor.requireString(ARCHIVE_MEDIA_NAME),
      archiveMediaId = cursor.requireString(ARCHIVE_MEDIA_ID),
      hasArchiveThumbnail = !cursor.isNull(THUMBNAIL_FILE),
@@ -2562,11 +2561,19 @@ class AttachmentTable(
    val remoteIv: ByteArray
  )

-  class LocalRestorableAttachment(
+  class RestorableAttachment(
    val attachmentId: AttachmentId,
    val mmsId: Long,
    val size: Long,
    val remoteDigest: ByteArray?,
    val remoteKey: ByteArray?
-  )
+  ) {
+    override fun equals(other: Any?): Boolean {
+      return this === other || attachmentId == (other as? RestorableAttachment)?.attachmentId
+    }
+
+    override fun hashCode(): Int {
+      return attachmentId.hashCode()
+    }
+  }
 }
--- a/app/src/main/java/org/thoughtcrime/securesms/database/MediaTable.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/database/MediaTable.kt
@@ -56,7 +56,6 @@ class MediaTable internal constructor(context: Context?, databaseHelper: SignalD
        ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ARCHIVE_CDN},
        ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ARCHIVE_MEDIA_NAME},
        ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ARCHIVE_MEDIA_ID},
-        ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ARCHIVE_THUMBNAIL_CDN},
        ${AttachmentTable.TABLE_NAME}.${AttachmentTable.THUMBNAIL_RESTORE_STATE},
        ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ATTACHMENT_UUID},
        ${MessageTable.TABLE_NAME}.${MessageTable.TYPE}, 
--- a/app/src/main/java/org/thoughtcrime/securesms/database/MessageTable.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/database/MessageTable.kt
@@ -388,7 +388,6 @@ open class MessageTable(context: Context?, databaseHelper: SignalDatabase) : Dat
            '${AttachmentTable.UPLOAD_TIMESTAMP}', ${AttachmentTable.TABLE_NAME}.${AttachmentTable.UPLOAD_TIMESTAMP},
            '${AttachmentTable.DATA_HASH_END}', ${AttachmentTable.TABLE_NAME}.${AttachmentTable.DATA_HASH_END},
            '${AttachmentTable.ARCHIVE_CDN}', ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ARCHIVE_CDN},
-            '${AttachmentTable.ARCHIVE_THUMBNAIL_CDN}', ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ARCHIVE_THUMBNAIL_CDN},
            '${AttachmentTable.ARCHIVE_MEDIA_NAME}', ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ARCHIVE_MEDIA_NAME},
            '${AttachmentTable.ARCHIVE_MEDIA_ID}', ${AttachmentTable.TABLE_NAME}.${AttachmentTable.ARCHIVE_MEDIA_ID},
            '${AttachmentTable.THUMBNAIL_RESTORE_STATE}', ${AttachmentTable.TABLE_NAME}.${AttachmentTable.THUMBNAIL_RESTORE_STATE},
--- a/app/src/main/java/org/thoughtcrime/securesms/database/helpers/SignalDatabaseMigrations.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/database/helpers/SignalDatabaseMigrations.kt
@@ -103,6 +103,7 @@ import org.thoughtcrime.securesms.database.helpers.migration.V242_MessageFullTex
 import org.thoughtcrime.securesms.database.helpers.migration.V243_MessageFullTextSearchDisableSecureDelete
 import org.thoughtcrime.securesms.database.helpers.migration.V244_AttachmentRemoteIv
 import org.thoughtcrime.securesms.database.helpers.migration.V245_DeletionTimestampOnCallLinks
+import org.thoughtcrime.securesms.database.helpers.migration.V246_DropThumbnailCdnFromAttachments

 /**
 * Contains all of the database migrations for [SignalDatabase]. Broken into a separate file for cleanliness.
@@ -208,10 +209,11 @@ object SignalDatabaseMigrations {
    242 to V242_MessageFullTextSearchEmojiSupportV2,
    243 to V243_MessageFullTextSearchDisableSecureDelete,
    244 to V244_AttachmentRemoteIv,
-    245 to V245_DeletionTimestampOnCallLinks
+    245 to V245_DeletionTimestampOnCallLinks,
+    246 to V246_DropThumbnailCdnFromAttachments
  )

-  const val DATABASE_VERSION = 245
+  const val DATABASE_VERSION = 246

  @JvmStatic
  fun migrate(context: Application, db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
--- a/app/src/main/java/org/thoughtcrime/securesms/database/helpers/migration/V246_DropThumbnailCdnFromAttachments.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/database/helpers/migration/V246_DropThumbnailCdnFromAttachments.kt
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2023 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.thoughtcrime.securesms.database.helpers.migration
+
+import android.app.Application
+import net.zetetic.database.sqlcipher.SQLiteDatabase
+
+/**
+ * Thumbnails are best effort and assumed to have the same CDN as the full attachment, there is no need to store it in the database.
+ */
+@Suppress("ClassName")
+object V246_DropThumbnailCdnFromAttachments : SignalDatabaseMigration {
+  override fun migrate(context: Application, db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
+    db.execSQL("ALTER TABLE attachment DROP COLUMN archive_thumbnail_cdn")
+  }
+}
--- a/app/src/main/java/org/thoughtcrime/securesms/jobmanager/JobController.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobmanager/JobController.java
@@ -164,7 +164,7 @@ class JobController {
  }

  @WorkerThread
-  void submitJobs(@NonNull List<Job> jobs) {
+  <T extends Job> void submitJobs(@NonNull List<T> jobs) {
    List<Job> canRun = new ArrayList<>(jobs.size());

    synchronized (this) {
--- a/app/src/main/java/org/thoughtcrime/securesms/jobmanager/JobManager.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobmanager/JobManager.java
@@ -198,7 +198,7 @@ public class JobManager implements ConstraintObserver.Notifier {
    });
  }

-  public void addAll(@NonNull List<Job> jobs) {
+  public <T extends Job> void addAll(@NonNull List<T> jobs) {
    if (jobs.isEmpty()) {
      return;
    }
--- a/app/src/main/java/org/thoughtcrime/securesms/jobs/ArchiveThumbnailUploadJob.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobs/ArchiveThumbnailUploadJob.kt
@@ -13,6 +13,7 @@ import org.thoughtcrime.securesms.attachments.AttachmentId
 import org.thoughtcrime.securesms.attachments.DatabaseAttachment
 import org.thoughtcrime.securesms.attachments.PointerAttachment
 import org.thoughtcrime.securesms.backup.v2.BackupRepository
+import org.thoughtcrime.securesms.backup.v2.BackupRepository.getMediaName
 import org.thoughtcrime.securesms.backup.v2.BackupRepository.getThumbnailMediaName
 import org.thoughtcrime.securesms.database.SignalDatabase
 import org.thoughtcrime.securesms.dependencies.AppDependencies
@@ -29,7 +30,6 @@ import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStre
 import org.whispersystems.signalservice.internal.push.http.ResumableUploadSpec
 import java.io.ByteArrayInputStream
 import java.io.IOException
-import java.lang.RuntimeException
 import java.util.Optional
 import kotlin.time.Duration.Companion.days

@@ -52,7 +52,7 @@ class ArchiveThumbnailUploadJob private constructor(
    }
  }

-  constructor(attachmentId: AttachmentId) : this(
+  private constructor(attachmentId: AttachmentId) : this(
    Parameters.Builder()
      .setQueue("ArchiveThumbnailUploadJob")
      .addConstraint(NetworkConstraint.KEY)
@@ -82,11 +82,15 @@ class ArchiveThumbnailUploadJob private constructor(
      return Result.success()
    }

+    // TODO [backups] Decide if we fail a job when associated attachment not already backed up
+    // TODO [backups] Determine if we actually need to upload or are reusing a thumbnail from another attachment
+
    val thumbnailResult = generateThumbnailIfPossible(attachment)
    if (thumbnailResult == null) {
      Log.w(TAG, "Unable to generate a thumbnail result for $attachmentId")
      return Result.success()
    }
+
    val backupKey = SignalStore.svr.getOrCreateMasterKey().deriveBackupKey()

    val resumableUpload = when (val result = BackupRepository.getMediaUploadSpec(secretKey = backupKey.deriveThumbnailTransitKey(attachment.getThumbnailMediaName()))) {
@@ -123,6 +127,10 @@ class ArchiveThumbnailUploadJob private constructor(

    return when (val result = BackupRepository.archiveThumbnail(attachmentPointer, attachment)) {
      is NetworkResult.Success -> {
+        // save attachment thumbnail
+        val archiveMediaId = attachment.archiveMediaId ?: backupKey.deriveMediaId(attachment.getMediaName()).encode()
+        SignalDatabase.attachments.finalizeAttachmentThumbnailAfterUpload(attachmentId, archiveMediaId, mediaSecrets.id, thumbnailResult.data)
+
        Log.i(RestoreAttachmentJob.TAG, "Restore: Thumbnail mediaId=${mediaSecrets.id.encode()} backupDir=${backupDirectories.backupDir} mediaDir=${backupDirectories.mediaDir}")
        Log.d(TAG, "Successfully archived thumbnail for $attachmentId mediaName=${attachment.getThumbnailMediaName()}")
        Result.success()
--- a/app/src/main/java/org/thoughtcrime/securesms/jobs/AttachmentDownloadJob.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobs/AttachmentDownloadJob.kt
@@ -4,8 +4,6 @@
 */
 package org.thoughtcrime.securesms.jobs

-import android.text.TextUtils
-import androidx.annotation.VisibleForTesting
 import okio.Source
 import okio.buffer
 import org.greenrobot.eventbus.EventBus
@@ -19,7 +17,7 @@ import org.thoughtcrime.securesms.attachments.Attachment
 import org.thoughtcrime.securesms.attachments.AttachmentId
 import org.thoughtcrime.securesms.attachments.Cdn
 import org.thoughtcrime.securesms.attachments.DatabaseAttachment
-import org.thoughtcrime.securesms.backup.v2.BackupRepository
+import org.thoughtcrime.securesms.attachments.InvalidAttachmentException
 import org.thoughtcrime.securesms.database.AttachmentTable
 import org.thoughtcrime.securesms.database.SignalDatabase
 import org.thoughtcrime.securesms.dependencies.AppDependencies
@@ -37,7 +35,6 @@ import org.thoughtcrime.securesms.transport.RetryLaterException
 import org.thoughtcrime.securesms.util.AttachmentUtil
 import org.thoughtcrime.securesms.util.RemoteConfig
 import org.thoughtcrime.securesms.util.Util
-import org.whispersystems.signalservice.api.backup.MediaName
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId
@@ -56,9 +53,8 @@ import java.util.concurrent.TimeUnit
 class AttachmentDownloadJob private constructor(
  parameters: Parameters,
  private val messageId: Long,
-  attachmentId: AttachmentId,
-  private val manual: Boolean,
-  private var forceArchiveDownload: Boolean
+  private val attachmentId: AttachmentId,
+  private val manual: Boolean
 ) : BaseJob(parameters) {

  companion object {
@@ -68,7 +64,6 @@ class AttachmentDownloadJob private constructor(
    private const val KEY_MESSAGE_ID = "message_id"
    private const val KEY_ATTACHMENT_ID = "part_row_id"
    private const val KEY_MANUAL = "part_manual"
-    private const val KEY_FORCE_ARCHIVE = "force_archive"

    @JvmStatic
    fun constructQueueString(attachmentId: AttachmentId): String {
@@ -89,25 +84,37 @@ class AttachmentDownloadJob private constructor(
    @JvmStatic
    fun downloadAttachmentIfNeeded(databaseAttachment: DatabaseAttachment): String? {
      return when (val transferState = databaseAttachment.transferState) {
-        AttachmentTable.TRANSFER_RESTORE_OFFLOADED -> RestoreAttachmentJob.restoreOffloadedAttachment(databaseAttachment)
+        AttachmentTable.TRANSFER_RESTORE_OFFLOADED,
+        AttachmentTable.TRANSFER_NEEDS_RESTORE -> RestoreAttachmentJob.restoreAttachment(databaseAttachment)

        AttachmentTable.TRANSFER_PROGRESS_PENDING,
-        AttachmentTable.TRANSFER_PROGRESS_FAILED,
-        AttachmentTable.TRANSFER_NEEDS_RESTORE -> {
-          val downloadJob = AttachmentDownloadJob(
-            messageId = databaseAttachment.mmsId,
-            attachmentId = databaseAttachment.attachmentId,
-            manual = true,
-            forceArchiveDownload = false
-          )
-          AppDependencies.jobManager.add(downloadJob)
-          downloadJob.id
+        AttachmentTable.TRANSFER_PROGRESS_FAILED -> {
+          if (SignalStore.backup.backsUpMedia && databaseAttachment.remoteLocation == null) {
+            if (databaseAttachment.archiveMediaName.isNullOrEmpty()) {
+              Log.w(TAG, "No remote location or archive media name, can't download")
+              null
+            } else {
+              Log.i(TAG, "Trying to restore attachment from archive cdn")
+              RestoreAttachmentJob.restoreAttachment(databaseAttachment)
+            }
+          } else {
+            val downloadJob = AttachmentDownloadJob(
+              messageId = databaseAttachment.mmsId,
+              attachmentId = databaseAttachment.attachmentId,
+              manual = true
+            )
+            AppDependencies.jobManager.add(downloadJob)
+            downloadJob.id
+          }
        }

        AttachmentTable.TRANSFER_RESTORE_IN_PROGRESS,
        AttachmentTable.TRANSFER_PROGRESS_DONE,
        AttachmentTable.TRANSFER_PROGRESS_STARTED,
-        AttachmentTable.TRANSFER_PROGRESS_PERMANENT_FAILURE -> null
+        AttachmentTable.TRANSFER_PROGRESS_PERMANENT_FAILURE -> {
+          Log.d(TAG, "$databaseAttachment is downloading, downloaded already or permanently failed, transferState: $transferState")
+          null
+        }

        else -> {
          Log.w(TAG, "Attempted to download attachment with unknown transfer state: $transferState")
@@ -117,9 +124,7 @@ class AttachmentDownloadJob private constructor(
    }
  }

-  private val attachmentId: Long
-
-  constructor(messageId: Long, attachmentId: AttachmentId, manual: Boolean, forceArchiveDownload: Boolean = false) : this(
+  constructor(messageId: Long, attachmentId: AttachmentId, manual: Boolean) : this(
    Parameters.Builder()
      .setQueue(constructQueueString(attachmentId))
      .addConstraint(NetworkConstraint.KEY)
@@ -128,20 +133,14 @@ class AttachmentDownloadJob private constructor(
      .build(),
    messageId,
    attachmentId,
-    manual,
-    forceArchiveDownload
+    manual
  )

-  init {
-    this.attachmentId = attachmentId.id
-  }
-
  override fun serialize(): ByteArray? {
    return JsonJobData.Builder()
      .putLong(KEY_MESSAGE_ID, messageId)
-      .putLong(KEY_ATTACHMENT_ID, attachmentId)
+      .putLong(KEY_ATTACHMENT_ID, attachmentId.id)
      .putBoolean(KEY_MANUAL, manual)
-      .putBoolean(KEY_FORCE_ARCHIVE, forceArchiveDownload)
      .serialize()
  }

@@ -152,7 +151,6 @@ class AttachmentDownloadJob private constructor(
  override fun onAdded() {
    Log.i(TAG, "onAdded() messageId: $messageId  attachmentId: $attachmentId  manual: $manual")

-    val attachmentId = AttachmentId(attachmentId)
    val attachment = SignalDatabase.attachments.getAttachment(attachmentId)
    val pending = attachment != null && attachment.transferState != AttachmentTable.TRANSFER_PROGRESS_DONE && attachment.transferState != AttachmentTable.TRANSFER_PROGRESS_PERMANENT_FAILURE

@@ -175,7 +173,6 @@ class AttachmentDownloadJob private constructor(
  fun doWork() {
    Log.i(TAG, "onRun() messageId: $messageId  attachmentId: $attachmentId  manual: $manual")

-    val attachmentId = AttachmentId(attachmentId)
    val attachment = SignalDatabase.attachments.getAttachment(attachmentId)

    if (attachment == null) {
@@ -199,6 +196,17 @@ class AttachmentDownloadJob private constructor(
      return
    }

+    if (SignalStore.backup.backsUpMedia && attachment.remoteLocation == null) {
+      if (attachment.archiveMediaName.isNullOrEmpty()) {
+        throw InvalidAttachmentException("No remote location or archive media name")
+      }
+
+      Log.i(TAG, "Trying to restore attachment from archive cdn instead")
+      RestoreAttachmentJob.restoreAttachment(attachment)
+
+      return
+    }
+
    Log.i(TAG, "Downloading push part $attachmentId")
    SignalDatabase.attachments.setTransferState(messageId, attachmentId, AttachmentTable.TRANSFER_PROGRESS_STARTED)

@@ -218,7 +226,6 @@ class AttachmentDownloadJob private constructor(
  override fun onFailure() {
    Log.w(TAG, format(this, "onFailure() messageId: $messageId  attachmentId: $attachmentId  manual: $manual"))

-    val attachmentId = AttachmentId(attachmentId)
    markFailed(messageId, attachmentId)
  }

@@ -235,25 +242,13 @@ class AttachmentDownloadJob private constructor(
  ) {
    val maxReceiveSize: Long = RemoteConfig.maxAttachmentReceiveSizeBytes
    val attachmentFile: File = SignalDatabase.attachments.getOrCreateTransferFile(attachmentId)
-    var archiveFile: File? = null
-    var useArchiveCdn = false

    try {
      if (attachment.size > maxReceiveSize) {
        throw MmsException("Attachment too large, failing download")
      }

-      useArchiveCdn = if (SignalStore.backup.backsUpMedia && (forceArchiveDownload || attachment.remoteLocation == null)) {
-        if (attachment.archiveMediaName.isNullOrEmpty()) {
-          throw InvalidPartException("Invalid attachment configuration")
-        }
-        true
-      } else {
-        false
-      }
-
-      val messageReceiver = AppDependencies.signalServiceMessageReceiver
-      val pointer = createAttachmentPointer(attachment, useArchiveCdn)
+      val pointer = createAttachmentPointer(attachment)

      val progressListener = object : SignalServiceAttachment.ProgressListener {
        override fun onAttachmentProgress(total: Long, progress: Long) {
@@ -265,55 +260,32 @@ class AttachmentDownloadJob private constructor(
        }
      }

-      val downloadResult = if (useArchiveCdn) {
-        archiveFile = SignalDatabase.attachments.getOrCreateArchiveTransferFile(attachmentId)
-        val cdnCredentials = BackupRepository.getCdnReadCredentials(attachment.archiveCdn).successOrThrow().headers
-
-        messageReceiver
-          .retrieveArchivedAttachment(
-            SignalStore.svr.getOrCreateMasterKey().deriveBackupKey().deriveMediaSecrets(MediaName(attachment.archiveMediaName!!)),
-            cdnCredentials,
-            archiveFile,
-            pointer,
-            attachmentFile,
-            maxReceiveSize,
-            false,
-            progressListener
-          )
-      } else {
-        messageReceiver
-          .retrieveAttachment(
-            pointer,
-            attachmentFile,
-            maxReceiveSize,
-            progressListener
-          )
-      }
+      val downloadResult = AppDependencies
+        .signalServiceMessageReceiver
+        .retrieveAttachment(
+          pointer,
+          attachmentFile,
+          maxReceiveSize,
+          progressListener
+        )

      SignalDatabase.attachments.finalizeAttachmentAfterDownload(messageId, attachmentId, downloadResult.dataStream, downloadResult.iv)
    } catch (e: RangeException) {
-      val transferFile = archiveFile ?: attachmentFile
-      Log.w(TAG, "Range exception, file size " + transferFile.length(), e)
-      if (transferFile.delete()) {
+      Log.w(TAG, "Range exception, file size " + attachmentFile.length(), e)
+      if (attachmentFile.delete()) {
        Log.i(TAG, "Deleted temp download file to recover")
        throw RetryLaterException(e)
      } else {
        throw IOException("Failed to delete temp download file following range exception")
      }
-    } catch (e: InvalidPartException) {
+    } catch (e: InvalidAttachmentException) {
      Log.w(TAG, "Experienced exception while trying to download an attachment.", e)
      markFailed(messageId, attachmentId)
    } catch (e: NonSuccessfulResponseCodeException) {
-      if (SignalStore.backup.backsUpMedia) {
-        if (e.code == 404 && !useArchiveCdn && attachment.archiveMediaName?.isNotEmpty() == true) {
-          Log.i(TAG, "Retrying download from archive CDN")
-          forceArchiveDownload = true
-          retrieveAttachment(messageId, attachmentId, attachment)
-          return
-        } else if (e.code == 401 && useArchiveCdn) {
-          SignalStore.backup.cdnReadCredentials = null
-          throw RetryLaterException(e)
-        }
+      if (SignalStore.backup.backsUpMedia && e.code == 404 && attachment.archiveMediaName?.isNotEmpty() == true) {
+        Log.i(TAG, "Retrying download from archive CDN")
+        RestoreAttachmentJob.restoreAttachment(attachment)
+        return
      }

      Log.w(TAG, "Experienced exception while trying to download an attachment.", e)
@@ -335,47 +307,31 @@ class AttachmentDownloadJob private constructor(
    }
  }

-  @Throws(InvalidPartException::class)
-  private fun createAttachmentPointer(attachment: DatabaseAttachment, useArchiveCdn: Boolean): SignalServiceAttachmentPointer {
-    if (TextUtils.isEmpty(attachment.remoteKey)) {
-      throw InvalidPartException("empty encrypted key")
+  @Throws(InvalidAttachmentException::class)
+  private fun createAttachmentPointer(attachment: DatabaseAttachment): SignalServiceAttachmentPointer {
+    if (attachment.remoteKey.isNullOrEmpty()) {
+      throw InvalidAttachmentException("empty encrypted key")
+    }
+
+    if (attachment.remoteLocation.isNullOrEmpty()) {
+      throw InvalidAttachmentException("empty content id")
    }

    return try {
-      val remoteData: RemoteData = if (useArchiveCdn) {
-        val backupKey = SignalStore.svr.getOrCreateMasterKey().deriveBackupKey()
-        val backupDirectories = BackupRepository.getCdnBackupDirectories().successOrThrow()
+      val remoteId = SignalServiceAttachmentRemoteId.from(attachment.remoteLocation)
+      val cdnNumber = attachment.cdn.cdnNumber

-        RemoteData(
-          remoteId = SignalServiceAttachmentRemoteId.Backup(
-            backupDir = backupDirectories.backupDir,
-            mediaDir = backupDirectories.mediaDir,
-            mediaId = backupKey.deriveMediaId(MediaName(attachment.archiveMediaName!!)).encode()
-          ),
-          cdnNumber = attachment.archiveCdn
-        )
-      } else {
-        if (attachment.remoteLocation.isNullOrEmpty()) {
-          throw InvalidPartException("empty content id")
-        }
-
-        RemoteData(
-          remoteId = SignalServiceAttachmentRemoteId.from(attachment.remoteLocation),
-          cdnNumber = attachment.cdn.cdnNumber
-        )
-      }
-
-      val key = Base64.decode(attachment.remoteKey!!)
+      val key = Base64.decode(attachment.remoteKey)

      if (attachment.remoteDigest != null) {
        Log.i(TAG, "Downloading attachment with digest: " + Hex.toString(attachment.remoteDigest))
      } else {
-        throw InvalidPartException("Null remote digest for $attachmentId")
+        throw InvalidAttachmentException("Null remote digest for $attachmentId")
      }

      SignalServiceAttachmentPointer(
-        remoteData.cdnNumber,
-        remoteData.remoteId,
+        cdnNumber,
+        remoteId,
        null,
        key,
        Optional.of(Util.toIntExact(attachment.size)),
@@ -396,10 +352,10 @@ class AttachmentDownloadJob private constructor(
      )
    } catch (e: IOException) {
      Log.w(TAG, e)
-      throw InvalidPartException(e)
+      throw InvalidAttachmentException(e)
    } catch (e: ArithmeticException) {
      Log.w(TAG, e)
-      throw InvalidPartException(e)
+      throw InvalidAttachmentException(e)
    }
  }

@@ -442,14 +398,6 @@ class AttachmentDownloadJob private constructor(
    SignalDatabase.attachments.setTransferProgressPermanentFailure(attachmentId, messageId)
  }

-  @VisibleForTesting
-  internal class InvalidPartException : Exception {
-    constructor(s: String?) : super(s)
-    constructor(e: Exception?) : super(e)
-  }
-
-  private data class RemoteData(val remoteId: SignalServiceAttachmentRemoteId, val cdnNumber: Int)
-
  class Factory : Job.Factory<AttachmentDownloadJob?> {
    override fun create(parameters: Parameters, serializedData: ByteArray?): AttachmentDownloadJob {
      val data = JsonJobData.deserialize(serializedData)
@@ -457,8 +405,7 @@ class AttachmentDownloadJob private constructor(
        parameters = parameters,
        messageId = data.getLong(KEY_MESSAGE_ID),
        attachmentId = AttachmentId(data.getLong(KEY_ATTACHMENT_ID)),
-        manual = data.getBoolean(KEY_MANUAL),
-        forceArchiveDownload = data.getBooleanOrDefault(KEY_FORCE_ARCHIVE, false)
+        manual = data.getBoolean(KEY_MANUAL)
      )
    }
  }
--- a/app/src/main/java/org/thoughtcrime/securesms/jobs/BackupRestoreMediaJob.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobs/BackupRestoreMediaJob.kt
@@ -6,7 +6,9 @@
 package org.thoughtcrime.securesms.jobs

 import org.signal.core.util.logging.Log
+import org.signal.core.util.withinTransaction
 import org.thoughtcrime.securesms.database.AttachmentTable
+import org.thoughtcrime.securesms.database.AttachmentTable.RestorableAttachment
 import org.thoughtcrime.securesms.database.SignalDatabase
 import org.thoughtcrime.securesms.database.model.MmsMessageRecord
 import org.thoughtcrime.securesms.dependencies.AppDependencies
@@ -48,40 +50,64 @@ class BackupRestoreMediaJob private constructor(parameters: Parameters) : BaseJo
      throw NotPushRegisteredException()
    }

-    SignalStore.backup.totalRestorableAttachmentSize = SignalDatabase.attachments.getRemainingRestorableAttachmentSize()
    val jobManager = AppDependencies.jobManager
-    val batchSize = 100
+    val batchSize = 500
    val restoreTime = System.currentTimeMillis()
-    var restoreJobBatch: List<Job>
+
    do {
+      val restoreThumbnailJobs: MutableList<RestoreAttachmentThumbnailJob> = mutableListOf()
+      val restoreFullAttachmentJobs: MutableMap<RestorableAttachment, RestoreAttachmentJob> = mutableMapOf()
+
+      val restoreThumbnailOnlyAttachments: MutableList<RestorableAttachment> = mutableListOf()
+      val notRestorable: MutableList<RestorableAttachment> = mutableListOf()
+
      val attachmentBatch = SignalDatabase.attachments.getRestorableAttachments(batchSize)
      val messageIds = attachmentBatch.map { it.mmsId }.toSet()
      val messageMap = SignalDatabase.messages.getMessages(messageIds).associate { it.id to (it as MmsMessageRecord) }
-      restoreJobBatch = SignalDatabase.attachments.getRestorableAttachments(batchSize).map { attachment ->
-        val message = messageMap[attachment.mmsId]!!
+
+      for (attachment in attachmentBatch) {
+        val message = messageMap[attachment.mmsId]
+        if (message == null) {
+          Log.w(TAG, "Unable to find message for ${attachment.attachmentId}")
+          notRestorable += attachment
+          continue
+        }
+
+        restoreThumbnailJobs += RestoreAttachmentThumbnailJob(
+          messageId = attachment.mmsId,
+          attachmentId = attachment.attachmentId,
+          highPriority = false
+        )
+
        if (shouldRestoreFullSize(message, restoreTime, SignalStore.backup.optimizeStorage)) {
-          RestoreAttachmentJob(
+          restoreFullAttachmentJobs += attachment to RestoreAttachmentJob(
            messageId = attachment.mmsId,
-            attachmentId = attachment.attachmentId,
-            manual = false,
-            forceArchiveDownload = true,
-            restoreMode = RestoreAttachmentJob.RestoreMode.ORIGINAL
+            attachmentId = attachment.attachmentId
          )
        } else {
-          SignalDatabase.attachments.setTransferState(
-            messageId = attachment.mmsId,
-            attachmentId = attachment.attachmentId,
-            transferState = AttachmentTable.TRANSFER_RESTORE_OFFLOADED
-          )
-          RestoreAttachmentThumbnailJob(
-            messageId = attachment.mmsId,
-            attachmentId = attachment.attachmentId,
-            highPriority = false
-          )
+          restoreThumbnailOnlyAttachments += attachment
        }
      }
-      jobManager.addAll(restoreJobBatch)
-    } while (restoreJobBatch.isNotEmpty())
+
+      SignalDatabase.rawDatabase.withinTransaction {
+        // Mark not restorable thumbnails and attachments as failed
+        SignalDatabase.attachments.setThumbnailRestoreState(notRestorable.map { it.attachmentId }, AttachmentTable.ThumbnailRestoreState.PERMANENT_FAILURE)
+        SignalDatabase.attachments.setRestoreTransferState(notRestorable, AttachmentTable.TRANSFER_PROGRESS_FAILED)
+
+        // Mark restorable thumbnails and attachments as in progress
+        SignalDatabase.attachments.setThumbnailRestoreState(restoreThumbnailJobs.map { it.attachmentId }, AttachmentTable.ThumbnailRestoreState.IN_PROGRESS)
+        SignalDatabase.attachments.setRestoreTransferState(restoreFullAttachmentJobs.keys, AttachmentTable.TRANSFER_RESTORE_IN_PROGRESS)
+
+        // Set thumbnail only attachments as offloaded
+        SignalDatabase.attachments.setRestoreTransferState(restoreThumbnailOnlyAttachments, AttachmentTable.TRANSFER_RESTORE_OFFLOADED)
+
+        jobManager.addAll(restoreThumbnailJobs + restoreFullAttachmentJobs.values)
+      }
+    } while (restoreThumbnailJobs.isNotEmpty() && restoreFullAttachmentJobs.isNotEmpty() && notRestorable.isNotEmpty())
+
+    SignalStore.backup.totalRestorableAttachmentSize = SignalDatabase.attachments.getRemainingRestorableAttachmentSize()
+
+    jobManager.add(CheckRestoreMediaLeftJob(RestoreAttachmentJob.constructQueueString()))
  }

  private fun shouldRestoreFullSize(message: MmsMessageRecord, restoreTime: Long, optimizeStorage: Boolean): Boolean {
--- a/app/src/main/java/org/thoughtcrime/securesms/jobs/RestoreAttachmentJob.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobs/RestoreAttachmentJob.kt
@@ -4,44 +4,36 @@
 */
 package org.thoughtcrime.securesms.jobs

-import android.text.TextUtils
-import androidx.annotation.VisibleForTesting
 import org.greenrobot.eventbus.EventBus
-import org.signal.core.util.Base64
-import org.signal.core.util.Hex
 import org.signal.core.util.logging.Log
 import org.signal.libsignal.protocol.InvalidMacException
 import org.signal.libsignal.protocol.InvalidMessageException
 import org.thoughtcrime.securesms.attachments.AttachmentId
 import org.thoughtcrime.securesms.attachments.DatabaseAttachment
+import org.thoughtcrime.securesms.attachments.InvalidAttachmentException
 import org.thoughtcrime.securesms.backup.v2.BackupRepository
-import org.thoughtcrime.securesms.backup.v2.BackupRepository.getThumbnailMediaName
+import org.thoughtcrime.securesms.backup.v2.database.createArchiveAttachmentPointer
 import org.thoughtcrime.securesms.database.AttachmentTable
 import org.thoughtcrime.securesms.database.SignalDatabase
 import org.thoughtcrime.securesms.dependencies.AppDependencies
 import org.thoughtcrime.securesms.events.PartProgressEvent
 import org.thoughtcrime.securesms.jobmanager.Job
 import org.thoughtcrime.securesms.jobmanager.JobLogger.format
-import org.thoughtcrime.securesms.jobmanager.JsonJobData
 import org.thoughtcrime.securesms.jobmanager.impl.NetworkConstraint
-import org.thoughtcrime.securesms.jobmanager.persistence.JobSpec
+import org.thoughtcrime.securesms.jobs.protos.RestoreAttachmentJobData
 import org.thoughtcrime.securesms.keyvalue.SignalStore
 import org.thoughtcrime.securesms.mms.MmsException
 import org.thoughtcrime.securesms.notifications.v2.ConversationId.Companion.forConversation
 import org.thoughtcrime.securesms.transport.RetryLaterException
 import org.thoughtcrime.securesms.util.RemoteConfig
-import org.thoughtcrime.securesms.util.Util
 import org.whispersystems.signalservice.api.backup.MediaName
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment
-import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer
-import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId
 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException
 import org.whispersystems.signalservice.api.push.exceptions.NonSuccessfulResponseCodeException
 import org.whispersystems.signalservice.api.push.exceptions.PushNetworkException
 import org.whispersystems.signalservice.api.push.exceptions.RangeException
 import java.io.File
 import java.io.IOException
-import java.util.Optional
 import java.util.concurrent.TimeUnit

 /**
@@ -50,83 +42,46 @@ import java.util.concurrent.TimeUnit
 class RestoreAttachmentJob private constructor(
  parameters: Parameters,
  private val messageId: Long,
-  attachmentId: AttachmentId,
-  private val manual: Boolean,
-  private var forceArchiveDownload: Boolean,
-  private val restoreMode: RestoreMode
+  private val attachmentId: AttachmentId,
+  private val offloaded: Boolean
 ) : BaseJob(parameters) {

  companion object {
    const val KEY = "RestoreAttachmentJob"
    val TAG = Log.tag(RestoreAttachmentJob::class.java)

-    private const val KEY_MESSAGE_ID = "message_id"
-    private const val KEY_ATTACHMENT_ID = "part_row_id"
-    private const val KEY_MANUAL = "part_manual"
-    private const val KEY_FORCE_ARCHIVE = "force_archive"
-    private const val KEY_RESTORE_MODE = "restore_mode"
-
    @JvmStatic
-    fun constructQueueString(attachmentId: AttachmentId): String {
+    fun constructQueueString(): String {
      // TODO: decide how many queues
      return "RestoreAttachmentJob"
    }

-    private fun getJsonJobData(jobSpec: JobSpec): JsonJobData? {
-      if (KEY != jobSpec.factoryKey) {
-        return null
-      }
-
-      val serializedData = jobSpec.serializedData ?: return null
-      return JsonJobData.deserialize(serializedData)
-    }
-
-    fun jobSpecMatchesAnyAttachmentId(data: JsonJobData?, ids: Set<AttachmentId>): Boolean {
-      if (data == null) {
-        return false
-      }
-      val parsed = AttachmentId(data.getLong(KEY_ATTACHMENT_ID))
-      return ids.contains(parsed)
-    }
-
    @JvmStatic
-    fun restoreOffloadedAttachment(attachment: DatabaseAttachment): String {
+    fun restoreAttachment(attachment: DatabaseAttachment): String {
      val restoreJob = RestoreAttachmentJob(
        messageId = attachment.mmsId,
        attachmentId = attachment.attachmentId,
-        manual = false,
-        forceArchiveDownload = true,
-        restoreMode = RestoreAttachmentJob.RestoreMode.ORIGINAL
+        offloaded = true
      )
      AppDependencies.jobManager.add(restoreJob)
      return restoreJob.id
    }
  }

-  private val attachmentId: Long = attachmentId.id
-
-  constructor(messageId: Long, attachmentId: AttachmentId, manual: Boolean, forceArchiveDownload: Boolean = false, restoreMode: RestoreMode = RestoreMode.ORIGINAL) : this(
+  constructor(messageId: Long, attachmentId: AttachmentId, offloaded: Boolean = false) : this(
    Parameters.Builder()
-      .setQueue(constructQueueString(attachmentId))
+      .setQueue(constructQueueString())
      .addConstraint(NetworkConstraint.KEY)
      .setLifespan(TimeUnit.DAYS.toMillis(1))
      .setMaxAttempts(Parameters.UNLIMITED)
      .build(),
    messageId,
    attachmentId,
-    manual,
-    forceArchiveDownload,
-    restoreMode
+    offloaded
  )

  override fun serialize(): ByteArray? {
-    return JsonJobData.Builder()
-      .putLong(KEY_MESSAGE_ID, messageId)
-      .putLong(KEY_ATTACHMENT_ID, attachmentId)
-      .putBoolean(KEY_MANUAL, manual)
-      .putBoolean(KEY_FORCE_ARCHIVE, forceArchiveDownload)
-      .putInt(KEY_RESTORE_MODE, restoreMode.value)
-      .serialize()
+    return RestoreAttachmentJobData(messageId = messageId, attachmentId = attachmentId.id, offloaded = offloaded).encode()
  }

  override fun getFactoryKey(): String {
@@ -134,14 +89,14 @@ class RestoreAttachmentJob private constructor(
  }

  override fun onAdded() {
-    Log.i(TAG, "onAdded() messageId: $messageId  attachmentId: $attachmentId  manual: $manual")
+    if (offloaded) {
+      Log.i(TAG, "onAdded() messageId: $messageId  attachmentId: $attachmentId")

-    val attachmentId = AttachmentId(attachmentId)
-    val attachment = SignalDatabase.attachments.getAttachment(attachmentId)
-    val pending = attachment != null && attachment.transferState != AttachmentTable.TRANSFER_PROGRESS_DONE && attachment.transferState != AttachmentTable.TRANSFER_PROGRESS_PERMANENT_FAILURE
-    if (attachment?.transferState == AttachmentTable.TRANSFER_NEEDS_RESTORE || attachment?.transferState == AttachmentTable.TRANSFER_RESTORE_OFFLOADED) {
-      Log.i(TAG, "onAdded() Marking attachment restore progress as 'started'")
-      SignalDatabase.attachments.setTransferState(messageId, attachmentId, AttachmentTable.TRANSFER_RESTORE_IN_PROGRESS)
+      val attachment = SignalDatabase.attachments.getAttachment(attachmentId)
+      if (attachment?.transferState == AttachmentTable.TRANSFER_NEEDS_RESTORE || attachment?.transferState == AttachmentTable.TRANSFER_RESTORE_OFFLOADED) {
+        Log.i(TAG, "onAdded() Marking attachment restore progress as 'started'")
+        SignalDatabase.attachments.setTransferState(messageId, attachmentId, AttachmentTable.TRANSFER_RESTORE_IN_PROGRESS)
+      }
    }
  }

@@ -152,17 +107,12 @@ class RestoreAttachmentJob private constructor(
    if (!SignalDatabase.messages.isStory(messageId)) {
      AppDependencies.messageNotifier.updateNotification(context, forConversation(0))
    }
-
-    if (SignalDatabase.attachments.getRemainingRestorableAttachmentSize() == 0L) {
-      SignalStore.backup.totalRestorableAttachmentSize = 0L
-    }
  }

  @Throws(IOException::class, RetryLaterException::class)
  fun doWork() {
-    Log.i(TAG, "onRun() messageId: $messageId  attachmentId: $attachmentId  manual: $manual")
+    Log.i(TAG, "onRun() messageId: $messageId  attachmentId: $attachmentId")

-    val attachmentId = AttachmentId(attachmentId)
    val attachment = SignalDatabase.attachments.getAttachment(attachmentId)

    if (attachment == null) {
@@ -177,23 +127,18 @@ class RestoreAttachmentJob private constructor(

    if (attachment.transferState != AttachmentTable.TRANSFER_NEEDS_RESTORE &&
      attachment.transferState != AttachmentTable.TRANSFER_RESTORE_IN_PROGRESS &&
-      (attachment.transferState != AttachmentTable.TRANSFER_RESTORE_OFFLOADED || restoreMode == RestoreMode.THUMBNAIL)
+      (attachment.transferState != AttachmentTable.TRANSFER_RESTORE_OFFLOADED)
    ) {
      Log.w(TAG, "Attachment does not need to be restored.")
      return
    }
-    if (attachment.thumbnailUri == null && (restoreMode == RestoreMode.THUMBNAIL || restoreMode == RestoreMode.BOTH)) {
-      downloadThumbnail(attachmentId, attachment)
-    }
-    if (restoreMode == RestoreMode.ORIGINAL || restoreMode == RestoreMode.BOTH) {
-      retrieveAttachment(messageId, attachmentId, attachment)
-    }
+
+    retrieveAttachment(messageId, attachmentId, attachment)
  }

  override fun onFailure() {
-    Log.w(TAG, format(this, "onFailure() messageId: $messageId  attachmentId: $attachmentId  manual: $manual"))
+    Log.w(TAG, format(this, "onFailure() messageId: $messageId  attachmentId: $attachmentId"))

-    val attachmentId = AttachmentId(attachmentId)
    markFailed(messageId, attachmentId)
  }

@@ -206,7 +151,8 @@ class RestoreAttachmentJob private constructor(
  private fun retrieveAttachment(
    messageId: Long,
    attachmentId: AttachmentId,
-    attachment: DatabaseAttachment
+    attachment: DatabaseAttachment,
+    forceTransitTier: Boolean = false
  ) {
    val maxReceiveSize: Long = RemoteConfig.maxAttachmentReceiveSizeBytes
    val attachmentFile: File = SignalDatabase.attachments.getOrCreateTransferFile(attachmentId)
@@ -218,9 +164,9 @@ class RestoreAttachmentJob private constructor(
        throw MmsException("Attachment too large, failing download")
      }

-      useArchiveCdn = if (SignalStore.backup.backsUpMedia && (forceArchiveDownload || attachment.remoteLocation == null)) {
+      useArchiveCdn = if (SignalStore.backup.backsUpMedia && !forceTransitTier) {
        if (attachment.archiveMediaName.isNullOrEmpty()) {
-          throw InvalidPartException("Invalid attachment configuration")
+          throw InvalidAttachmentException("Invalid attachment configuration")
        }
        true
      } else {
@@ -228,7 +174,7 @@ class RestoreAttachmentJob private constructor(
      }

      val messageReceiver = AppDependencies.signalServiceMessageReceiver
-      val pointer = createAttachmentPointer(attachment, useArchiveCdn)
+      val pointer = attachment.createArchiveAttachmentPointer(useArchiveCdn)

      val progressListener = object : SignalServiceAttachment.ProgressListener {
        override fun onAttachmentProgress(total: Long, progress: Long) {
@@ -275,15 +221,14 @@ class RestoreAttachmentJob private constructor(
      } else {
        throw IOException("Failed to delete temp download file following range exception")
      }
-    } catch (e: InvalidPartException) {
+    } catch (e: InvalidAttachmentException) {
      Log.w(TAG, "Experienced exception while trying to download an attachment.", e)
      markFailed(messageId, attachmentId)
    } catch (e: NonSuccessfulResponseCodeException) {
      if (SignalStore.backup.backsUpMedia) {
-        if (e.code == 404 && !useArchiveCdn && attachment.archiveMediaName?.isNotEmpty() == true) {
-          Log.i(TAG, "Retrying download from archive CDN")
-          forceArchiveDownload = true
-          retrieveAttachment(messageId, attachmentId, attachment)
+        if (e.code == 404 && !forceTransitTier && attachment.remoteLocation?.isNotBlank() == true) {
+          Log.i(TAG, "Retrying download from transit CDN")
+          retrieveAttachment(messageId, attachmentId, attachment, true)
          return
        } else if (e.code == 401 && useArchiveCdn) {
          SignalStore.backup.cdnReadCredentials = null
@@ -310,212 +255,22 @@ class RestoreAttachmentJob private constructor(
    }
  }

-  @Throws(InvalidPartException::class)
-  private fun createAttachmentPointer(attachment: DatabaseAttachment, useArchiveCdn: Boolean): SignalServiceAttachmentPointer {
-    if (TextUtils.isEmpty(attachment.remoteKey)) {
-      throw InvalidPartException("empty encrypted key")
-    }
-
-    return try {
-      val remoteData: RemoteData = if (useArchiveCdn) {
-        val backupKey = SignalStore.svr.getOrCreateMasterKey().deriveBackupKey()
-        val backupDirectories = BackupRepository.getCdnBackupDirectories().successOrThrow()
-
-        RemoteData(
-          remoteId = SignalServiceAttachmentRemoteId.Backup(
-            backupDir = backupDirectories.backupDir,
-            mediaDir = backupDirectories.mediaDir,
-            mediaId = backupKey.deriveMediaId(MediaName(attachment.archiveMediaName!!)).encode()
-          ),
-          cdnNumber = attachment.archiveCdn
-        )
-      } else {
-        if (attachment.remoteLocation.isNullOrEmpty()) {
-          throw InvalidPartException("empty content id")
-        }
-
-        RemoteData(
-          remoteId = SignalServiceAttachmentRemoteId.from(attachment.remoteLocation),
-          cdnNumber = attachment.cdn.cdnNumber
-        )
-      }
-
-      val key = Base64.decode(attachment.remoteKey!!)
-
-      if (attachment.remoteDigest != null) {
-        Log.i(TAG, "Downloading attachment with digest: " + Hex.toString(attachment.remoteDigest))
-      } else {
-        Log.i(TAG, "Downloading attachment with no digest...")
-      }
-
-      SignalServiceAttachmentPointer(
-        remoteData.cdnNumber,
-        remoteData.remoteId,
-        null,
-        key,
-        Optional.of(Util.toIntExact(attachment.size)),
-        Optional.empty(),
-        0,
-        0,
-        Optional.ofNullable(attachment.remoteDigest),
-        Optional.ofNullable(attachment.getIncrementalDigest()),
-        attachment.incrementalMacChunkSize,
-        Optional.ofNullable(attachment.fileName),
-        attachment.voiceNote,
-        attachment.borderless,
-        attachment.videoGif,
-        Optional.empty(),
-        Optional.ofNullable(attachment.blurHash).map { it.hash },
-        attachment.uploadTimestamp,
-        attachment.uuid
-      )
-    } catch (e: IOException) {
-      Log.w(TAG, e)
-      throw InvalidPartException(e)
-    } catch (e: ArithmeticException) {
-      Log.w(TAG, e)
-      throw InvalidPartException(e)
-    }
-  }
-
-  @Throws(InvalidPartException::class)
-  private fun createThumbnailPointer(attachment: DatabaseAttachment): SignalServiceAttachmentPointer {
-    if (TextUtils.isEmpty(attachment.remoteKey)) {
-      throw InvalidPartException("empty encrypted key")
-    }
-
-    val backupKey = SignalStore.svr.getOrCreateMasterKey().deriveBackupKey()
-    val backupDirectories = BackupRepository.getCdnBackupDirectories().successOrThrow()
-    return try {
-      val key = backupKey.deriveThumbnailTransitKey(attachment.getThumbnailMediaName())
-      val mediaId = backupKey.deriveMediaId(attachment.getThumbnailMediaName()).encode()
-      SignalServiceAttachmentPointer(
-        attachment.archiveThumbnailCdn,
-        SignalServiceAttachmentRemoteId.Backup(
-          backupDir = backupDirectories.backupDir,
-          mediaDir = backupDirectories.mediaDir,
-          mediaId = mediaId
-        ),
-        null,
-        key,
-        Optional.empty(),
-        Optional.empty(),
-        0,
-        0,
-        Optional.empty(),
-        Optional.empty(),
-        attachment.incrementalMacChunkSize,
-        Optional.empty(),
-        attachment.voiceNote,
-        attachment.borderless,
-        attachment.videoGif,
-        Optional.empty(),
-        Optional.ofNullable(attachment.blurHash).map { it.hash },
-        attachment.uploadTimestamp,
-        attachment.uuid
-      )
-    } catch (e: IOException) {
-      Log.w(TAG, e)
-      throw InvalidPartException(e)
-    } catch (e: ArithmeticException) {
-      Log.w(TAG, e)
-      throw InvalidPartException(e)
-    }
-  }
-
-  private fun downloadThumbnail(attachmentId: AttachmentId, attachment: DatabaseAttachment) {
-    if (attachment.thumbnailRestoreState == AttachmentTable.ThumbnailRestoreState.FINISHED) {
-      Log.w(TAG, "$attachmentId already has thumbnail downloaded")
-      return
-    }
-    if (attachment.thumbnailRestoreState == AttachmentTable.ThumbnailRestoreState.NONE) {
-      Log.w(TAG, "$attachmentId has no thumbnail state")
-      return
-    }
-    if (attachment.thumbnailRestoreState == AttachmentTable.ThumbnailRestoreState.PERMANENT_FAILURE) {
-      Log.w(TAG, "$attachmentId thumbnail permanently failed")
-      return
-    }
-    if (attachment.archiveMediaName == null) {
-      Log.w(TAG, "$attachmentId was never archived! Cannot proceed.")
-      return
-    }
-
-    val maxThumbnailSize: Long = RemoteConfig.maxAttachmentReceiveSizeBytes
-    val thumbnailTransferFile: File = SignalDatabase.attachments.createArchiveThumbnailTransferFile()
-    val thumbnailFile: File = SignalDatabase.attachments.createArchiveThumbnailTransferFile()
-
-    val progressListener = object : SignalServiceAttachment.ProgressListener {
-      override fun onAttachmentProgress(total: Long, progress: Long) {
-      }
-
-      override fun shouldCancel(): Boolean {
-        return this@RestoreAttachmentJob.isCanceled
-      }
-    }
-
-    val cdnCredentials = BackupRepository.getCdnReadCredentials(attachment.archiveCdn).successOrThrow().headers
-    val messageReceiver = AppDependencies.signalServiceMessageReceiver
-    val pointer = createThumbnailPointer(attachment)
-
-    Log.w(TAG, "Downloading thumbnail for $attachmentId mediaName=${attachment.getThumbnailMediaName()}")
-    val downloadResult = messageReceiver
-      .retrieveArchivedAttachment(
-        SignalStore.svr.getOrCreateMasterKey().deriveBackupKey().deriveMediaSecrets(attachment.getThumbnailMediaName()),
-        cdnCredentials,
-        thumbnailTransferFile,
-        pointer,
-        thumbnailFile,
-        maxThumbnailSize,
-        true,
-        progressListener
-      )
-
-    SignalDatabase.attachments.finalizeAttachmentThumbnailAfterDownload(attachmentId, attachment.archiveMediaId!!, downloadResult.dataStream, thumbnailTransferFile)
-  }
-
  private fun markFailed(messageId: Long, attachmentId: AttachmentId) {
-    try {
-      SignalDatabase.attachments.setTransferProgressFailed(attachmentId, messageId)
-    } catch (e: MmsException) {
-      Log.w(TAG, e)
-    }
+    SignalDatabase.attachments.setTransferProgressFailed(attachmentId, messageId)
  }

  private fun markPermanentlyFailed(messageId: Long, attachmentId: AttachmentId) {
    SignalDatabase.attachments.setTransferProgressPermanentFailure(attachmentId, messageId)
  }

-  @VisibleForTesting
-  internal class InvalidPartException : Exception {
-    constructor(s: String?) : super(s)
-    constructor(e: Exception?) : super(e)
-  }
-
-  enum class RestoreMode(val value: Int) {
-    THUMBNAIL(0),
-    ORIGINAL(1),
-    BOTH(2);
-
-    companion object {
-      fun deserialize(value: Int): RestoreMode {
-        return values().firstOrNull { it.value == value } ?: ORIGINAL
-      }
-    }
-  }
-
-  private data class RemoteData(val remoteId: SignalServiceAttachmentRemoteId, val cdnNumber: Int)
-
  class Factory : Job.Factory<RestoreAttachmentJob?> {
    override fun create(parameters: Parameters, serializedData: ByteArray?): RestoreAttachmentJob {
-      val data = JsonJobData.deserialize(serializedData)
+      val data = RestoreAttachmentJobData.ADAPTER.decode(serializedData!!)
      return RestoreAttachmentJob(
        parameters = parameters,
-        messageId = data.getLong(KEY_MESSAGE_ID),
-        attachmentId = AttachmentId(data.getLong(KEY_ATTACHMENT_ID)),
-        manual = data.getBoolean(KEY_MANUAL),
-        forceArchiveDownload = data.getBooleanOrDefault(KEY_FORCE_ARCHIVE, false),
-        restoreMode = RestoreMode.deserialize(data.getIntOrDefault(KEY_RESTORE_MODE, RestoreMode.ORIGINAL.value))
+        messageId = data.messageId,
+        attachmentId = AttachmentId(data.attachmentId),
+        offloaded = data.offloaded
      )
    }
  }
--- a/app/src/main/java/org/thoughtcrime/securesms/jobs/RestoreAttachmentThumbnailJob.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobs/RestoreAttachmentThumbnailJob.kt
@@ -4,13 +4,13 @@
 */
 package org.thoughtcrime.securesms.jobs

-import android.text.TextUtils
-import androidx.annotation.VisibleForTesting
 import org.signal.core.util.logging.Log
+import org.signal.libsignal.protocol.InvalidMessageException
 import org.thoughtcrime.securesms.attachments.AttachmentId
-import org.thoughtcrime.securesms.attachments.DatabaseAttachment
+import org.thoughtcrime.securesms.attachments.InvalidAttachmentException
 import org.thoughtcrime.securesms.backup.v2.BackupRepository
 import org.thoughtcrime.securesms.backup.v2.BackupRepository.getThumbnailMediaName
+import org.thoughtcrime.securesms.backup.v2.database.createArchiveThumbnailPointer
 import org.thoughtcrime.securesms.database.AttachmentTable
 import org.thoughtcrime.securesms.database.SignalDatabase
 import org.thoughtcrime.securesms.dependencies.AppDependencies
@@ -19,16 +19,11 @@ import org.thoughtcrime.securesms.jobmanager.JobLogger.format
 import org.thoughtcrime.securesms.jobmanager.JsonJobData
 import org.thoughtcrime.securesms.jobmanager.impl.NetworkConstraint
 import org.thoughtcrime.securesms.keyvalue.SignalStore
-import org.thoughtcrime.securesms.notifications.v2.ConversationId.Companion.forConversation
-import org.thoughtcrime.securesms.transport.RetryLaterException
 import org.thoughtcrime.securesms.util.RemoteConfig
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment
-import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer
-import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId
-import org.whispersystems.signalservice.api.push.exceptions.PushNetworkException
+import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException
 import java.io.File
 import java.io.IOException
-import java.util.Optional
 import java.util.concurrent.TimeUnit

 /**
@@ -37,7 +32,7 @@ import java.util.concurrent.TimeUnit
 class RestoreAttachmentThumbnailJob private constructor(
  parameters: Parameters,
  private val messageId: Long,
-  attachmentId: AttachmentId
+  val attachmentId: AttachmentId
 ) : BaseJob(parameters) {

  companion object {
@@ -54,8 +49,6 @@ class RestoreAttachmentThumbnailJob private constructor(
    }
  }

-  private val attachmentId: Long
-
  constructor(messageId: Long, attachmentId: AttachmentId, highPriority: Boolean = false) : this(
    Parameters.Builder()
      .setQueue(constructQueueString(attachmentId))
@@ -68,14 +61,10 @@ class RestoreAttachmentThumbnailJob private constructor(
    attachmentId
  )

-  init {
-    this.attachmentId = attachmentId.id
-  }
-
  override fun serialize(): ByteArray? {
    return JsonJobData.Builder()
      .putLong(KEY_MESSAGE_ID, messageId)
-      .putLong(KEY_ATTACHMENT_ID, attachmentId)
+      .putLong(KEY_ATTACHMENT_ID, attachmentId.id)
      .serialize()
  }

@@ -83,35 +72,10 @@ class RestoreAttachmentThumbnailJob private constructor(
    return KEY
  }

-  override fun onAdded() {
-    Log.i(TAG, "onAdded() messageId: $messageId  attachmentId: $attachmentId")
-
-    val attachmentId = AttachmentId(attachmentId)
-    val attachment = SignalDatabase.attachments.getAttachment(attachmentId)
-    val pending = attachment != null &&
-      attachment.thumbnailRestoreState != AttachmentTable.ThumbnailRestoreState.FINISHED &&
-      attachment.thumbnailRestoreState != AttachmentTable.ThumbnailRestoreState.PERMANENT_FAILURE &&
-      attachment.thumbnailRestoreState != AttachmentTable.ThumbnailRestoreState.NONE
-    if (pending) {
-      Log.i(TAG, "onAdded() Marking thumbnail restore progress as 'started'")
-      SignalDatabase.attachments.setThumbnailTransferState(messageId, attachmentId, AttachmentTable.ThumbnailRestoreState.IN_PROGRESS)
-    }
-  }
-
-  @Throws(Exception::class)
+  @Throws(Exception::class, IOException::class, InvalidAttachmentException::class, InvalidMessageException::class, MissingConfigurationException::class)
  public override fun onRun() {
-    doWork()
-
-    if (!SignalDatabase.messages.isStory(messageId)) {
-      AppDependencies.messageNotifier.updateNotification(context, forConversation(0))
-    }
-  }
-
-  @Throws(IOException::class, RetryLaterException::class)
-  fun doWork() {
    Log.i(TAG, "onRun() messageId: $messageId  attachmentId: $attachmentId")

-    val attachmentId = AttachmentId(attachmentId)
    val attachment = SignalDatabase.attachments.getAttachment(attachmentId)

    if (attachment == null) {
@@ -119,79 +83,21 @@ class RestoreAttachmentThumbnailJob private constructor(
      return
    }

-    downloadThumbnail(attachmentId, attachment)
-  }
-
-  override fun onFailure() {
-    Log.w(TAG, format(this, "onFailure() thumbnail messageId: $messageId  attachmentId: $attachmentId "))
-
-    val attachmentId = AttachmentId(attachmentId)
-    markFailed(messageId, attachmentId)
-  }
-
-  override fun onShouldRetry(exception: Exception): Boolean {
-    return exception is PushNetworkException ||
-      exception is RetryLaterException
-  }
-
-  @Throws(InvalidPartException::class)
-  private fun createThumbnailPointer(attachment: DatabaseAttachment): SignalServiceAttachmentPointer {
-    if (TextUtils.isEmpty(attachment.remoteKey)) {
-      throw InvalidPartException("empty encrypted key")
-    }
-
-    val backupKey = SignalStore.svr.getOrCreateMasterKey().deriveBackupKey()
-    val backupDirectories = BackupRepository.getCdnBackupDirectories().successOrThrow()
-    return try {
-      val key = backupKey.deriveThumbnailTransitKey(attachment.getThumbnailMediaName())
-      val mediaId = backupKey.deriveMediaId(attachment.getThumbnailMediaName()).encode()
-      SignalServiceAttachmentPointer(
-        attachment.archiveThumbnailCdn,
-        SignalServiceAttachmentRemoteId.Backup(
-          backupDir = backupDirectories.backupDir,
-          mediaDir = backupDirectories.mediaDir,
-          mediaId = mediaId
-        ),
-        null,
-        key,
-        Optional.empty(),
-        Optional.empty(),
-        0,
-        0,
-        Optional.empty(),
-        Optional.empty(),
-        attachment.incrementalMacChunkSize,
-        Optional.empty(),
-        attachment.voiceNote,
-        attachment.borderless,
-        attachment.videoGif,
-        Optional.empty(),
-        Optional.ofNullable(attachment.blurHash).map { it.hash },
-        attachment.uploadTimestamp,
-        attachment.uuid
-      )
-    } catch (e: IOException) {
-      Log.w(TAG, e)
-      throw InvalidPartException(e)
-    } catch (e: ArithmeticException) {
-      Log.w(TAG, e)
-      throw InvalidPartException(e)
-    }
-  }
-
-  private fun downloadThumbnail(attachmentId: AttachmentId, attachment: DatabaseAttachment) {
    if (attachment.thumbnailRestoreState == AttachmentTable.ThumbnailRestoreState.FINISHED) {
      Log.w(TAG, "$attachmentId already has thumbnail downloaded")
      return
    }
+
    if (attachment.thumbnailRestoreState == AttachmentTable.ThumbnailRestoreState.NONE) {
      Log.w(TAG, "$attachmentId has no thumbnail state")
      return
    }
+
    if (attachment.thumbnailRestoreState == AttachmentTable.ThumbnailRestoreState.PERMANENT_FAILURE) {
      Log.w(TAG, "$attachmentId thumbnail permanently failed")
      return
    }
+
    if (attachment.archiveMediaName == null) {
      Log.w(TAG, "$attachmentId was never archived! Cannot proceed.")
      return
@@ -202,20 +108,15 @@ class RestoreAttachmentThumbnailJob private constructor(
    val thumbnailFile: File = SignalDatabase.attachments.createArchiveThumbnailTransferFile()

    val progressListener = object : SignalServiceAttachment.ProgressListener {
-      override fun onAttachmentProgress(total: Long, progress: Long) {
-      }
-
-      override fun shouldCancel(): Boolean {
-        return this@RestoreAttachmentThumbnailJob.isCanceled
-      }
+      override fun onAttachmentProgress(total: Long, progress: Long) = Unit
+      override fun shouldCancel(): Boolean = this@RestoreAttachmentThumbnailJob.isCanceled
    }

    val cdnCredentials = BackupRepository.getCdnReadCredentials(attachment.archiveCdn).successOrThrow().headers
-    val messageReceiver = AppDependencies.signalServiceMessageReceiver
-    val pointer = createThumbnailPointer(attachment)
+    val pointer = attachment.createArchiveThumbnailPointer()

-    Log.w(TAG, "Downloading thumbnail for $attachmentId")
-    val downloadResult = messageReceiver
+    Log.i(TAG, "Downloading thumbnail for $attachmentId")
+    val downloadResult = AppDependencies.signalServiceMessageReceiver
      .retrieveArchivedAttachment(
        SignalStore.svr.getOrCreateMasterKey().deriveBackupKey().deriveMediaSecrets(attachment.getThumbnailMediaName()),
        cdnCredentials,
@@ -228,16 +129,20 @@ class RestoreAttachmentThumbnailJob private constructor(
      )

    SignalDatabase.attachments.finalizeAttachmentThumbnailAfterDownload(attachmentId, attachment.archiveMediaId!!, downloadResult.dataStream, thumbnailTransferFile)
+
+    if (!SignalDatabase.messages.isStory(messageId)) {
+      AppDependencies.messageNotifier.updateNotification(context)
+    }
  }

-  private fun markFailed(messageId: Long, attachmentId: AttachmentId) {
+  override fun onFailure() {
+    Log.w(TAG, format(this, "onFailure() thumbnail messageId: $messageId  attachmentId: $attachmentId "))
+
    SignalDatabase.attachments.setThumbnailRestoreProgressFailed(attachmentId, messageId)
  }

-  @VisibleForTesting
-  internal class InvalidPartException : Exception {
-    constructor(s: String?) : super(s)
-    constructor(e: Exception?) : super(e)
+  override fun onShouldRetry(exception: Exception): Boolean {
+    return exception is IOException
  }

  class Factory : Job.Factory<RestoreAttachmentThumbnailJob?> {
--- a/app/src/main/java/org/thoughtcrime/securesms/jobs/RestoreLocalAttachmentJob.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobs/RestoreLocalAttachmentJob.kt
@@ -15,7 +15,7 @@ import org.signal.libsignal.protocol.InvalidMessageException
 import org.thoughtcrime.securesms.attachments.AttachmentId
 import org.thoughtcrime.securesms.backup.v2.local.ArchiveFileSystem
 import org.thoughtcrime.securesms.database.AttachmentTable
-import org.thoughtcrime.securesms.database.AttachmentTable.LocalRestorableAttachment
+import org.thoughtcrime.securesms.database.AttachmentTable.RestorableAttachment
 import org.thoughtcrime.securesms.database.SignalDatabase
 import org.thoughtcrime.securesms.dependencies.AppDependencies
 import org.thoughtcrime.securesms.jobmanager.Job
@@ -47,9 +47,9 @@ class RestoreLocalAttachmentJob private constructor(
      var restoreAttachmentJobs: MutableList<Job>

      do {
-        val possibleRestorableAttachments: List<LocalRestorableAttachment> = SignalDatabase.attachments.getLocalRestorableAttachments(500)
-        val restorableAttachments = ArrayList<LocalRestorableAttachment>(possibleRestorableAttachments.size)
-        val notRestorableAttachments = ArrayList<LocalRestorableAttachment>(possibleRestorableAttachments.size)
+        val possibleRestorableAttachments: List<RestorableAttachment> = SignalDatabase.attachments.getRestorableAttachments(500)
+        val restorableAttachments = ArrayList<RestorableAttachment>(possibleRestorableAttachments.size)
+        val notRestorableAttachments = ArrayList<RestorableAttachment>(possibleRestorableAttachments.size)

        restoreAttachmentJobs = ArrayList(possibleRestorableAttachments.size)

@@ -71,8 +71,8 @@ class RestoreLocalAttachmentJob private constructor(
          }

        SignalDatabase.rawDatabase.withinTransaction {
-          SignalDatabase.attachments.setRestoreInProgressTransferState(restorableAttachments)
-          SignalDatabase.attachments.setRestoreFailedTransferState(notRestorableAttachments)
+          SignalDatabase.attachments.setRestoreTransferState(restorableAttachments, AttachmentTable.TRANSFER_RESTORE_IN_PROGRESS)
+          SignalDatabase.attachments.setRestoreTransferState(notRestorableAttachments, AttachmentTable.TRANSFER_PROGRESS_FAILED)

          SignalStore.backup.totalRestorableAttachmentSize = SignalDatabase.attachments.getRemainingRestorableAttachmentSize()
          AppDependencies.jobManager.addAll(restoreAttachmentJobs)
@@ -92,7 +92,7 @@ class RestoreLocalAttachmentJob private constructor(
    }
  }

-  private constructor(queue: String, attachment: LocalRestorableAttachment, info: DocumentFileInfo) : this(
+  private constructor(queue: String, attachment: RestorableAttachment, info: DocumentFileInfo) : this(
    Parameters.Builder()
      .setQueue(queue)
      .setLifespan(Parameters.IMMORTAL)
--- a/app/src/main/java/org/thoughtcrime/securesms/migrations/LegacyMigrationJob.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/migrations/LegacyMigrationJob.java
@@ -255,7 +255,7 @@ public class LegacyMigrationJob extends MigrationJob {
        attachmentDb.setTransferState(attachment.mmsId, attachment.attachmentId, AttachmentTable.TRANSFER_PROGRESS_DONE);
      } else if (record != null && !record.isOutgoing() && record.isPush()) {
        Log.i(TAG, "queuing new attachment download job for incoming push part " + attachment.attachmentId + ".");
-        AppDependencies.getJobManager().add(new AttachmentDownloadJob(attachment.mmsId, attachment.attachmentId, false, false));
+        AppDependencies.getJobManager().add(new AttachmentDownloadJob(attachment.mmsId, attachment.attachmentId, false));
      }
      reader.close();
    }
--- a/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/state/PendingParticipantsState.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/service/webrtc/state/PendingParticipantsState.kt
@@ -13,4 +13,4 @@ import org.thoughtcrime.securesms.service.webrtc.PendingParticipantCollection
 data class PendingParticipantsState(
  val pendingParticipantCollection: PendingParticipantCollection,
  val isInPipMode: Boolean
-)
+)