Add a job to backfill attachment uploads to the archive service.

app/src/main/java/org/thoughtcrime/securesms/attachments/AttachmentUploadUtil.kt

@@ -0,0 +1,105 @@
+/*
+ * Copyright 2024 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.thoughtcrime.securesms.attachments
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.os.Build
+import org.signal.core.util.logging.Log
+import org.signal.protos.resumableuploads.ResumableUpload
+import org.thoughtcrime.securesms.blurhash.BlurHashEncoder
+import org.thoughtcrime.securesms.mms.PartAuthority
+import org.thoughtcrime.securesms.util.MediaUtil
+import org.whispersystems.signalservice.api.messages.SignalServiceAttachment
+import org.whispersystems.signalservice.api.messages.SignalServiceAttachment.ProgressListener
+import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream
+import org.whispersystems.signalservice.internal.push.http.ResumableUploadSpec
+import java.io.IOException
+import java.util.Objects
+
+/**
+ * A place collect common attachment upload operations to allow for code reuse.
+ */
+object AttachmentUploadUtil {
+
+  private val TAG = Log.tag(AttachmentUploadUtil::class.java)
+
+  /**
+   * Builds a [SignalServiceAttachmentStream] from the provided data, which can then be provided to various upload methods.
+   */
+  @Throws(IOException::class)
+  fun buildSignalServiceAttachmentStream(
+    context: Context,
+    attachment: Attachment,
+    uploadSpec: ResumableUpload,
+    cancellationSignal: (() -> Boolean)? = null,
+    progressListener: ProgressListener? = null
+  ): SignalServiceAttachmentStream {
+    val inputStream = PartAuthority.getAttachmentStream(context, attachment.uri!!)
+    val builder = SignalServiceAttachment.newStreamBuilder()
+      .withStream(inputStream)
+      .withContentType(attachment.contentType)
+      .withLength(attachment.size)
+      .withFileName(attachment.fileName)
+      .withVoiceNote(attachment.voiceNote)
+      .withBorderless(attachment.borderless)
+      .withGif(attachment.videoGif)
+      .withFaststart(attachment.transformProperties?.mp4FastStart ?: false)
+      .withWidth(attachment.width)
+      .withHeight(attachment.height)
+      .withUploadTimestamp(System.currentTimeMillis())
+      .withCaption(attachment.caption)
+      .withResumableUploadSpec(ResumableUploadSpec.from(uploadSpec))
+      .withCancelationSignal(cancellationSignal)
+      .withListener(progressListener)
+
+    if (MediaUtil.isImageType(attachment.contentType)) {
+      builder.withBlurHash(getImageBlurHash(context, attachment))
+    } else if (MediaUtil.isVideoType(attachment.contentType)) {
+      builder.withBlurHash(getVideoBlurHash(context, attachment))
+    }
+
+    return builder.build()
+  }
+
+  @Throws(IOException::class)
+  private fun getImageBlurHash(context: Context, attachment: Attachment): String? {
+    if (attachment.blurHash != null) {
+      return attachment.blurHash!!.hash
+    }
+
+    if (attachment.uri == null) {
+      return null
+    }
+
+    return PartAuthority.getAttachmentStream(context, attachment.uri!!).use { inputStream ->
+      BlurHashEncoder.encode(inputStream)
+    }
+  }
+
+  @Throws(IOException::class)
+  private fun getVideoBlurHash(context: Context, attachment: Attachment): String? {
+    if (attachment.blurHash != null) {
+      return attachment.blurHash.hash
+    }
+
+    if (Build.VERSION.SDK_INT < 23) {
+      Log.w(TAG, "Video thumbnails not supported...")
+      return null
+    }
+
+    return MediaUtil.getVideoThumbnail(context, Objects.requireNonNull(attachment.uri), 1000)?.let { bitmap ->
+      val thumb = Bitmap.createScaledBitmap(bitmap, 100, 100, false)
+      bitmap.recycle()
+
+      Log.i(TAG, "Generated video thumbnail...")
+      val hash = BlurHashEncoder.encode(thumb)
+      thumb.recycle()
+
+      hash
+    }
+  }
+}