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[BackupRestorer] Handle uncompressed backups (#8988)

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[Backups] Handle uncompressed backups
This commit is contained in:
beerpsi 2023-01-26 21:14:18 +07:00 committed by GitHub
parent 3a82b4d924
commit c892c793a8
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3 changed files with 36 additions and 15 deletions
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12
app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupFileValidator.kt
View File

@ -3,12 +3,9 @@ package eu.kanade.tachiyomi.data.backup
import android.content.Context import android.content.Context
import android.net.Uri import android.net.Uri
import eu.kanade.tachiyomi.R import eu.kanade.tachiyomi.R
import eu.kanade.tachiyomi.data.backup.models.BackupSerializer
import eu.kanade.tachiyomi.data.track.TrackManager import eu.kanade.tachiyomi.data.track.TrackManager
import eu.kanade.tachiyomi.source.SourceManager import eu.kanade.tachiyomi.source.SourceManager
import okio.buffer import eu.kanade.tachiyomi.util.BackupUtil
import okio.gzip
import okio.source
import uy.kohesive.injekt.Injekt import uy.kohesive.injekt.Injekt
import uy.kohesive.injekt.api.get import uy.kohesive.injekt.api.get
@ -24,13 +21,8 @@ class BackupFileValidator(
* @return List of missing sources or missing trackers. * @return List of missing sources or missing trackers.
*/ */
fun validate(context: Context, uri: Uri): Results { fun validate(context: Context, uri: Uri): Results {
val backupManager = BackupManager(context)
val backup = try { val backup = try {
val backupString = BackupUtil.decodeBackup(context, uri)
context.contentResolver.openInputStream(uri)!!.source().gzip().buffer()
.use { it.readByteArray() }
backupManager.parser.decodeFromByteArray(BackupSerializer, backupString)
} catch (e: Exception) { } catch (e: Exception) {
throw IllegalStateException(e) throw IllegalStateException(e)
} }

7
app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestorer.kt
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@ -6,15 +6,13 @@ import eu.kanade.tachiyomi.R
import eu.kanade.tachiyomi.data.backup.models.BackupCategory import eu.kanade.tachiyomi.data.backup.models.BackupCategory
import eu.kanade.tachiyomi.data.backup.models.BackupHistory import eu.kanade.tachiyomi.data.backup.models.BackupHistory
import eu.kanade.tachiyomi.data.backup.models.BackupManga import eu.kanade.tachiyomi.data.backup.models.BackupManga
import eu.kanade.tachiyomi.data.backup.models.BackupSerializer
import eu.kanade.tachiyomi.data.backup.models.BackupSource import eu.kanade.tachiyomi.data.backup.models.BackupSource
import eu.kanade.tachiyomi.data.database.models.Chapter import eu.kanade.tachiyomi.data.database.models.Chapter
import eu.kanade.tachiyomi.data.database.models.Manga import eu.kanade.tachiyomi.data.database.models.Manga
import eu.kanade.tachiyomi.data.database.models.Track import eu.kanade.tachiyomi.data.database.models.Track
import eu.kanade.tachiyomi.util.BackupUtil
import eu.kanade.tachiyomi.util.system.createFileInCacheDir import eu.kanade.tachiyomi.util.system.createFileInCacheDir
import kotlinx.coroutines.Job import kotlinx.coroutines.Job
import okio.buffer
import okio.gzip
import okio.source import okio.source
import java.io.File import java.io.File
import java.text.SimpleDateFormat import java.text.SimpleDateFormat
@ -79,8 +77,7 @@ class BackupRestorer(
@Suppress("BlockingMethodInNonBlockingContext") @Suppress("BlockingMethodInNonBlockingContext")
private suspend fun performRestore(uri: Uri): Boolean { private suspend fun performRestore(uri: Uri): Boolean {
val backupString = context.contentResolver.openInputStream(uri)!!.source().gzip().buffer().use { it.readByteArray() } val backup = BackupUtil.decodeBackup(context, uri)
val backup = backupManager.parser.decodeFromByteArray(BackupSerializer, backupString)
restoreAmount = backup.backupManga.size + 1 // +1 for categories restoreAmount = backup.backupManga.size + 1 // +1 for categories

32
app/src/main/java/eu/kanade/tachiyomi/util/BackupUtil.kt Normal file
View File

@ -0,0 +1,32 @@
package eu.kanade.tachiyomi.util
import android.content.Context
import android.net.Uri
import eu.kanade.tachiyomi.data.backup.BackupManager
import eu.kanade.tachiyomi.data.backup.models.Backup
import eu.kanade.tachiyomi.data.backup.models.BackupSerializer
import okio.buffer
import okio.gzip
import okio.source
object BackupUtil {
/**
* Decode a potentially-gzipped backup.
*/
fun decodeBackup(context: Context, uri: Uri): Backup {
val backupManager = BackupManager(context)
val backupStringSource = context.contentResolver.openInputStream(uri)!!.source().buffer()
val peeked = backupStringSource.peek()
peeked.require(2)
val id1id2 = peeked.readShort()
val backupString = if (id1id2.toInt() == 0x1f8b) { // 0x1f8b is gzip magic bytes
backupStringSource.gzip().buffer()
} else {
backupStringSource
}.use { it.readByteArray() }
return backupManager.parser.decodeFromByteArray(BackupSerializer, backupString)
}
}