commit 8864be681443f7b847297fae8aef7dc8e692c6d9
parent af7d5c9f4fc835fd5a36e2a392954d20601f118a
Author: rhunk <101876869+rhunk@users.noreply.github.com>
Date: Sat, 4 May 2024 19:00:16 +0200
fix(download_processor): handle duplicates
- checks if the file already exists and if it does, compares its contents with the input file, if contents differ, deletes existing file
Diffstat:
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/app/src/main/kotlin/me/rhunk/snapenhance/download/DownloadProcessor.kt b/app/src/main/kotlin/me/rhunk/snapenhance/download/DownloadProcessor.kt
@@ -89,7 +89,6 @@ class DownloadProcessor (
private fun newFFMpegProcessor(pendingTask: PendingTask) = FFMpegProcessor.newFFMpegProcessor(remoteSideContext, pendingTask)
- @SuppressLint("UnspecifiedRegisterReceiverFlag")
suspend fun saveMediaToGallery(pendingTask: PendingTask, inputFile: File, metadata: DownloadMetadata) {
if (coroutineContext.job.isCancelled) return
@@ -129,6 +128,34 @@ class DownloadProcessor (
}
}
+ // checks if the file already exists and if it does, compares its contents with the input file, if contents differ, deletes existing file.
+ outputFileFolder.findFile(fileName)?.let { existingFile ->
+ pendingTask.updateProgress("Comparing existing media")
+ remoteSideContext.androidContext.contentResolver.openInputStream(existingFile.uri)?.use { existingInputStream ->
+ val buffer1 = ByteArray(1024 * 1024)
+ val buffer2 = ByteArray(1024 * 1024)
+ var read1: Int
+ var read2: Int
+
+ inputFile.inputStream().use { inputStream ->
+ while (true) {
+ read1 = inputStream.read(buffer1)
+ read2 = existingInputStream.read(buffer2)
+ if (read1 != read2 || !buffer1.contentEquals(buffer2)) {
+ existingFile.delete()
+ return@let
+ }
+ if (read1 == -1) break
+ }
+ }
+ }
+
+ pendingTask.task.extra = existingFile.uri.toString()
+ pendingTask.success()
+ callbackOnFailure(translation["already_downloaded_toast"])
+ return
+ }
+
val outputFile = outputFileFolder.createFile(fileType.mimeType, fileName)!!
pendingTask.updateProgress("Saving media to gallery")
