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Remove part file(s) in case of failure

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Will not always delete part files in case of crashes
This commit is contained in:
Benoit Marty 2021-07-19 11:08:03 +02:00
parent 9c1bec94c9
commit 7643cc506d
2 changed files with 14 additions and 2 deletions
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12
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/DefaultFileService.kt
View file

@ -97,6 +97,9 @@ internal class DefaultFileService @Inject constructor(
}
}
var atomicFileCreator1: AtomicFileCreator? = null
var atomicFileCreator2: AtomicFileCreator? = null
if (existingDownload != null) {
// FIXME If the first downloader cancels then we'll unfortunately be cancelled too.
return existingDownload.await()
@ -133,7 +136,7 @@ internal class DefaultFileService @Inject constructor(
// Write the file to cache (encrypted version if the file is encrypted)
// Write to a part file first, so if we abort before done, we don't have a broken cached file
val atomicFileCreator = AtomicFileCreator(cachedFiles.file)
val atomicFileCreator = AtomicFileCreator(cachedFiles.file).also { atomicFileCreator1 = it }
writeToFile(source.inputStream(), atomicFileCreator.partFile)
response.close()
atomicFileCreator.commit()
@ -150,7 +153,7 @@ internal class DefaultFileService @Inject constructor(
// Ensure the parent folder exists
cachedFiles.decryptedFile.parentFile?.mkdirs()
// Write to a part file first, so if we abort before done, we don't have a broken cached file
val atomicFileCreator = AtomicFileCreator(cachedFiles.decryptedFile)
val atomicFileCreator = AtomicFileCreator(cachedFiles.decryptedFile).also { atomicFileCreator2 = it }
val decryptSuccess = cachedFiles.file.inputStream().use { inputStream ->
atomicFileCreator.partFile.outputStream().buffered().use { outputStream ->
MXEncryptedAttachments.decryptAttachment(
@ -181,6 +184,11 @@ internal class DefaultFileService @Inject constructor(
}
toNotify?.completeWith(result)
result.onFailure {
atomicFileCreator1?.cancel()
atomicFileCreator2?.cancel()
}
return result.getOrThrow()
}

4
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/util/file/AtomicFileCreator.kt
View file

@ -32,6 +32,10 @@ internal class AtomicFileCreator(private val file: File) {
}
}
fun cancel() {
partFile.delete()
}
fun commit() {
partFile.renameTo(file)
}