AtaraxiaDev/cryptomator-android
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#295 fix crash when opening a file using third party app and resuming

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Crash or that the file is no longer available only occurs under certain circumstances
This commit is contained in:
Julian Raufelder 2021-04-14 14:02:03 +02:00
parent 7f93b019c4
commit 99408e53fd
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GPG Key ID: 17EE71F6634E381D
2 changed files with 16 additions and 14 deletions
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29
presentation/src/main/java/org/cryptomator/presentation/presenter/BrowseFilesPresenter.kt
View File

@ -850,8 +850,7 @@ class BrowseFilesPresenter @Inject constructor( //
private fun createNewDocumentUri(parentUri: Uri, fileName: String): Uri {
val mimeType = mimeTypes.fromFilename(fileName) //
.orElse(MimeType.APPLICATION_OCTET_STREAM)
val newDocumentUri: Uri?
newDocumentUri = try {
return try {
DocumentsContract.createDocument( //
context().contentResolver, //
parentUri, //
@ -859,11 +858,7 @@ class BrowseFilesPresenter @Inject constructor( //
fileName)
} catch (e: FileNotFoundException) {
throw NoSuchCloudFileException(fileName)
}
if (newDocumentUri == null) {
throw IllegalFileNameException()
}
return newDocumentUri
} ?: throw IllegalFileNameException()
}
@Callback
@ -1093,7 +1088,7 @@ class BrowseFilesPresenter @Inject constructor( //
fun openFileFinished() {
try {
// necessary see https://gitlab.skymatic.de/cryptomator/android/-/issues/569
// necessary see https://community.cryptomator.org/t/android-tabelle-nach-upload-unlesbar/6550
Thread.sleep(500)
} catch (e: InterruptedException) {
Timber.tag("BrowseFilesPresenter").e(e, "Failed to sleep after resuming editing, necessary for google office apps")
@ -1107,12 +1102,17 @@ class BrowseFilesPresenter @Inject constructor( //
context().revokeUriPermission(uriToOpenedFile, Intent.FLAG_GRANT_WRITE_URI_PERMISSION or Intent.FLAG_GRANT_READ_URI_PERMISSION)
uriToOpenedFile?.let {
val hashAfterEdit = calculateDigestFromUri(it)
if (hashAfterEdit.isPresent && openedCloudFileMd5.isPresent //
&& Arrays.equals(hashAfterEdit.get(), openedCloudFileMd5.get())) {
Timber.tag("BrowseFilesPresenter").i("Opened app finished, file not changed")
} else {
uploadChangedFile()
try {
val hashAfterEdit = calculateDigestFromUri(it)
if (hashAfterEdit.isPresent && openedCloudFileMd5.isPresent //
&& Arrays.equals(hashAfterEdit.get(), openedCloudFileMd5.get())) {
Timber.tag("BrowseFilesPresenter").i("Opened app finished, file not changed")
} else {
uploadChangedFile()
}
} catch (e: FileNotFoundException) {
Timber.tag("BrowseFilesPresenter").e(e, "Failed to read back changes, file isn't present anymore")
Toast.makeText(context(), R.string.error_file_not_found_after_opening_using_3party, Toast.LENGTH_LONG).show()
}
}
}
@ -1159,6 +1159,7 @@ class BrowseFilesPresenter @Inject constructor( //
openWritableFileNotification.ifPresent { obj: OpenWritableFileNotification -> obj.hide() }
}
@Throws(FileNotFoundException::class)
private fun calculateDigestFromUri(uri: Uri): Optional<ByteArray> {
val digest = MessageDigest.getInstance("MD5")
DigestInputStream(context().contentResolver.openInputStream(uri), digest).use { dis ->

1
presentation/src/main/res/values/strings.xml
View File

@ -32,6 +32,7 @@
<string name="error_failed_to_decrypt_webdav_password">Failed to decrypt WebDAV password, please re add in settings</string>
<string name="error_play_services_not_available">Play Services not installed</string>
<string name="error_biometric_auth_aborted">Biometric authentication aborted</string>
<string name="error_file_not_found_after_opening_using_3party">Local file isn\'t present anymore after switching back to Cryptomator. Possible changes cannot be propagated back to the cloud.</string>
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