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Improve error message if restoring from JSON file (#1056)

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* Improve error message if restoring from JSON file

* Replace Exception with IOException

* Use more generic error message if protobuf fails

* fix lint
This commit is contained in:
Vetle Ledaal 2024-07-31 16:39:41 +02:00 committed by GitHub
parent 8160b47ff5
commit de8ef6dad7
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GPG key ID: B5690EEEBB952194
2 changed files with 23 additions and 6 deletions
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25
app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupDecoder.kt
View file

@ -3,18 +3,21 @@ package eu.kanade.tachiyomi.data.backup
import android.content.Context
import android.net.Uri
import eu.kanade.tachiyomi.data.backup.models.Backup
import kotlinx.serialization.SerializationException
import kotlinx.serialization.protobuf.ProtoBuf
import okio.buffer
import okio.gzip
import okio.source
import tachiyomi.core.common.i18n.stringResource
import tachiyomi.i18n.MR
import uy.kohesive.injekt.Injekt
import uy.kohesive.injekt.api.get
import java.io.IOException
class BackupDecoder(
private val context: Context,
private val parser: ProtoBuf = Injekt.get(),
) {
/**
* Decode a potentially-gzipped backup.
*/
@ -26,13 +29,25 @@ class BackupDecoder(
require(2)
}
val id1id2 = peeked.readShort()
val backupString = if (id1id2.toInt() == 0x1f8b) { // 0x1f8b is gzip magic bytes
source.gzip().buffer()
} else {
source
val backupString = when (id1id2.toInt()) {
0x1f8b -> source.gzip().buffer() // 0x1f8b is gzip magic bytes
MAGIC_JSON_SIGNATURE1, MAGIC_JSON_SIGNATURE2, MAGIC_JSON_SIGNATURE3 -> {
throw IOException(context.stringResource(MR.strings.invalid_backup_file_json))
}
else -> source
}.use { it.readByteArray() }
try {
parser.decodeFromByteArray(Backup.serializer(), backupString)
} catch (_: SerializationException) {
throw IOException(context.stringResource(MR.strings.invalid_backup_file_unknown))
}
}
}
companion object {
private const val MAGIC_JSON_SIGNATURE1 = 0x7b7d // `{}`
private const val MAGIC_JSON_SIGNATURE2 = 0x7b22 // `{"`
private const val MAGIC_JSON_SIGNATURE3 = 0x7b0a // `{\n`
}
}

2
i18n/src/commonMain/moko-resources/base/strings.xml
View file

@ -518,6 +518,8 @@
<string name="invalid_backup_file">Invalid backup file:</string>
<string name="invalid_backup_file_error">Full error:</string>
<string name="invalid_backup_file_missing_manga">Backup does not contain any library entries.</string>
<string name="invalid_backup_file_json">JSON backup not supported</string>
<string name="invalid_backup_file_unknown">Backup file is corrupted</string>
<string name="backup_restore_missing_sources">Missing sources:</string>
<string name="backup_restore_missing_trackers">Trackers not logged into:</string>
<string name="backup_restore_content_full">You may need to install any missing extensions and log in to tracking services afterwards to use them.</string>