fix(vault): исправил шифрование, meta Yandex и enc-meta при первом открытии

Remember key после encrypt, мягкий auto-open в UnlockManager,
StorageMetaLoadState без затирания meta на сетевых ошибках,
фильтр storages в YandexVault и создание .enc-meta при FileNotFound.

domain-vault/src/main/java/com/github/nullptroma/wallenc/domain/vault/storages/UnlockManager.kt

@@ -58,11 +58,17 @@ class UnlockManager(
                             allStorages.removeAt(allStorages.size - 1)
                             allStorages.add(encStorage)
                         }
-                        catch (_: Exception) {
+                        catch (e: WallencException.Storage.IncorrectKey) {
-                            // ключ не подошёл
                             keysToRemove.add(key)
                             allStorages.removeAt(allStorages.size - 1)
                         }
+                        catch (_: WallencException.Storage.EncInfoMissing) {
+                            keysToRemove.add(key)
+                            allStorages.removeAt(allStorages.size - 1)
+                        }
+                        catch (_: Exception) {
+                            allStorages.removeAt(allStorages.size - 1)
+                        }
                     }
                     keymapRepository.delete(*keysToRemove.toTypedArray()) // удалить мёртвые ключи
                     _openedStorages.value = map.toMap()
@@ -104,6 +110,21 @@ class UnlockManager(
         return UUID(bb.long, bb.long)
     }
 
+    override suspend fun rememberKey(storage: IStorage, key: EncryptKey) = withContext(ioDispatcher) {
+        mutex.withLock {
+            val encInfo = storage.metaInfo.value.encInfo ?: throw WallencException.Storage.EncInfoMissing()
+            if (!Encryptor.checkKey(key, encInfo)) {
+                throw WallencException.Storage.IncorrectKey()
+            }
+            keymapRepository.add(
+                StorageKeyMap(
+                    sourceUuid = storage.uuid,
+                    key = key,
+                ),
+            )
+        }
+    }
+
     override suspend fun open(
         storage: IStorage,
         key: EncryptKey,

domain-vault/src/main/java/com/github/nullptroma/wallenc/domain/vault/storages/common/BaseStorage.kt

@@ -3,6 +3,7 @@ package com.github.nullptroma.wallenc.domain.vault.storages.common
 import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
 import com.github.nullptroma.wallenc.domain.common.impl.CommonStorageMetaInfo
 import com.github.nullptroma.wallenc.domain.datatypes.StorageEncryptionInfo
+import com.github.nullptroma.wallenc.domain.datatypes.StorageMetaLoadState
 import com.github.nullptroma.wallenc.domain.errors.WallencException
 import com.github.nullptroma.wallenc.domain.interfaces.IStorage
 import com.github.nullptroma.wallenc.domain.interfaces.IStorageAccessor
@@ -39,6 +40,10 @@ abstract class BaseStorage(
     final override val metaInfo: StateFlow<IStorageMetaInfo>
         get() = _metaInfo
 
+    private val _metaLoadState = MutableStateFlow(StorageMetaLoadState.Loading)
+    final override val metaLoadState: StateFlow<StorageMetaLoadState>
+        get() = _metaLoadState
+
     final override val size: StateFlow<Long?>
         get() = accessor.size
 
@@ -71,32 +76,39 @@ abstract class BaseStorage(
     }
 
     private suspend fun readMetaInfo() = withContext(ioDispatcher) {
-        val meta = try {
+        val (meta, state) = loadMetaFromDisk()
-            accessor.openReadSystemFile(metaInfoFileName).use { input ->
+        _metaInfo.value = meta
-                val bytes = input.readBytes()
+        _metaLoadState.value = state
+    }
+
+    private suspend fun loadMetaFromDisk(): Pair<IStorageMetaInfo, StorageMetaLoadState> {
+        return try {
+            val bytes = accessor.openReadSystemFile(metaInfoFileName).use { it.readBytes() }
             when {
                 bytes.isEmpty() -> {
                     val default = CommonStorageMetaInfo()
                     updateMetaInfo(default)
-                        default
+                    default to StorageMetaLoadState.Ready
                 }
                 else -> try {
-                        jackson.readValue(bytes, CommonStorageMetaInfo::class.java)
+                    jackson.readValue(bytes, CommonStorageMetaInfo::class.java) to StorageMetaLoadState.Ready
                 } catch (_: Exception) {
-                        // Битый JSON — не перезаписываем файл на диске
+                    CommonStorageMetaInfo() to StorageMetaLoadState.Unavailable
-                        CommonStorageMetaInfo()
-                    }
                 }
             }
         } catch (_: WallencException.Storage.FileNotFound) {
             val default = CommonStorageMetaInfo()
             updateMetaInfo(default)
-            default
+            default to StorageMetaLoadState.Ready
         } catch (_: Exception) {
-            // Сеть/IO — оставляем дефолт в памяти, существующий файл не трогаем
+            CommonStorageMetaInfo() to StorageMetaLoadState.Unavailable
-            CommonStorageMetaInfo()
+        }
+    }
+
+    private suspend fun requireMetaReady() {
+        if (_metaLoadState.value != StorageMetaLoadState.Ready) {
+            throw WallencException.Storage.NotAvailable()
         }
-        _metaInfo.value = meta
     }
 
     private suspend fun updateMetaInfo(meta: IStorageMetaInfo) = withContext(ioDispatcher) {
@@ -108,6 +120,7 @@ abstract class BaseStorage(
     }
 
     final override suspend fun rename(newName: String) = withContext(ioDispatcher) {
+        requireMetaReady()
         val cur = metaInfo.value
         updateMetaInfo(
             CommonStorageMetaInfo(
@@ -118,6 +131,7 @@ abstract class BaseStorage(
     }
 
     final override suspend fun setEncInfo(encInfo: StorageEncryptionInfo?) = withContext(ioDispatcher) {
+        requireMetaReady()
         val cur = metaInfo.value
         updateMetaInfo(
             CommonStorageMetaInfo(

domain-vault/src/main/java/com/github/nullptroma/wallenc/domain/vault/storages/encrypt/EncryptedStorageAccessor.kt

@@ -1,5 +1,7 @@
 package com.github.nullptroma.wallenc.domain.vault.storages.encrypt
 
+import com.github.nullptroma.wallenc.domain.errors.WallencException
+import com.github.nullptroma.wallenc.domain.vault.storages.common.readSystemFileBytesOrEmpty
 import com.github.nullptroma.wallenc.domain.vault.utils.CloseHandledStreamExtension.Companion.onClosed
 import com.github.nullptroma.wallenc.domain.vault.utils.CloseHandledStreamExtension.Companion.onClosing
 import com.github.nullptroma.wallenc.domain.common.impl.CommonDirectory
@@ -28,6 +30,7 @@ import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
+import java.io.ByteArrayInputStream
 import java.io.InputStream
 import java.io.OutputStream
 import java.time.Instant
@@ -272,7 +275,11 @@ class EncryptedStorageAccessor(
 
     override suspend fun openReadSystemFile(name: String): InputStream = scope.run {
         val path = Path(systemHiddenDirName, name).pathString
+        try {
             openRead(path)
+        } catch (_: WallencException.Storage.FileNotFound) {
+            ByteArrayInputStream(ByteArray(0))
+        }
     }
 
     override suspend fun openWriteSystemFile(name: String): OutputStream = scope.run {
@@ -284,7 +291,7 @@ class EncryptedStorageAccessor(
     }
 
     override suspend fun readSyncJournal(): List<StorageSyncJournalEntry> {
-        val bytes = openReadSystemFile(SYNC_JOURNAL_FILENAME).use { it.readBytes() }
+        val bytes = readSystemFileBytesOrEmpty { openReadSystemFile(SYNC_JOURNAL_FILENAME) }
         if (bytes.isEmpty()) {
             return emptyList()
         }
@@ -316,7 +323,7 @@ class EncryptedStorageAccessor(
     }
 
     override suspend fun readSyncLock(): StorageSyncLock? {
-        val bytes = openReadSystemFile(SYNC_LOCK_FILENAME).use { it.readBytes() }
+        val bytes = readSystemFileBytesOrEmpty { openReadSystemFile(SYNC_LOCK_FILENAME) }
         if (bytes.isEmpty()) {
             return null
         }

domain-vault/src/main/java/com/github/nullptroma/wallenc/domain/vault/vaults/yandex/YandexVault.kt

@@ -4,6 +4,7 @@ import com.github.nullptroma.wallenc.domain.vault.network.yandexdisk.YandexDiskA
 import com.github.nullptroma.wallenc.domain.vault.network.yandexdisk.repository.YandexDiskRepository
 import com.github.nullptroma.wallenc.domain.vault.storages.yandex.YandexStorage
 import com.github.nullptroma.wallenc.domain.datatypes.StorageEncryptionInfo
+import com.github.nullptroma.wallenc.domain.datatypes.StorageMetaLoadState
 import com.github.nullptroma.wallenc.domain.interfaces.IStorage
 import com.github.nullptroma.wallenc.vault.contract.CloudBrand
 import com.github.nullptroma.wallenc.vault.contract.DescribedVault
@@ -132,7 +133,10 @@ class YandexVault(
             if (attempt > 0) {
                 delay(STORAGE_INIT_RETRY_DELAY_MS * attempt)
             }
-            if (runCatching { storage.init() }.isSuccess) {
+            if (
+                runCatching { storage.init() }.isSuccess &&
+                storage.metaLoadState.value == StorageMetaLoadState.Ready
+            ) {
                 return storage
             }
         }

domain/src/main/java/com/github/nullptroma/wallenc/domain/datatypes/StorageMetaLoadState.kt

@@ -0,0 +1,7 @@
+package com.github.nullptroma.wallenc.domain.datatypes
+
+enum class StorageMetaLoadState {
+    Loading,
+    Ready,
+    Unavailable,
+}

domain/src/main/java/com/github/nullptroma/wallenc/domain/interfaces/IStorage.kt

@@ -1,6 +1,7 @@
 package com.github.nullptroma.wallenc.domain.interfaces
 
 import com.github.nullptroma.wallenc.domain.datatypes.StorageEncryptionInfo
+import com.github.nullptroma.wallenc.domain.datatypes.StorageMetaLoadState
 import com.github.nullptroma.wallenc.domain.tasks.TaskProgress
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.StateFlow
@@ -14,6 +15,7 @@ sealed interface IStorageInfo {
     val numberOfFiles: StateFlow<Int?>
     val isEmpty: Flow<Boolean?>
     val metaInfo: StateFlow<IStorageMetaInfo>
+    val metaLoadState: StateFlow<StorageMetaLoadState>
     val isVirtualStorage: Boolean
 }
 

domain/src/main/java/com/github/nullptroma/wallenc/domain/interfaces/IUnlockManager.kt

@@ -16,6 +16,8 @@ interface IUnlockManager {
     fun getOpenedStorageKey(uuid: UUID): EncryptKey?
 
     suspend fun open(storage: IStorage, key: EncryptKey, rememberPassword: Boolean = true): IStorage
+    /** Сохранить ключ для auto-open без открытия виртуального storage. */
+    suspend fun rememberKey(storage: IStorage, key: EncryptKey)
     suspend fun close(storage: IStorage)
     suspend fun close(uuid: UUID)
 }

usecases/src/main/java/com/github/nullptroma/wallenc/usecases/ManageStoragesEncryptionUseCase.kt

@@ -46,6 +46,14 @@ class ManageStoragesEncryptionUseCase @Inject constructor(
         }
     }
 
+    suspend fun rememberStorageKey(storage: IStorageInfo, key: EncryptKey) {
+        if (storage is IStorage) {
+            unlockManager.rememberKey(storage, key)
+            return
+        }
+        throw IllegalStateException("Unsupported storage type")
+    }
+
     suspend fun openStorage(storage: IStorageInfo, key: EncryptKey, rememberPassword: Boolean): IStorageInfo {
         if (storage is IStorage) return unlockManager.open(storage, key, rememberPassword)
         throw IllegalStateException("Unsupported storage type")

usecases/src/test/java/com/github/nullptroma/wallenc/usecases/fakes/FakeStorage.kt

@@ -1,6 +1,7 @@
 package com.github.nullptroma.wallenc.usecases.fakes
 
 import com.github.nullptroma.wallenc.domain.datatypes.StorageEncryptionInfo
+import com.github.nullptroma.wallenc.domain.datatypes.StorageMetaLoadState
 import com.github.nullptroma.wallenc.domain.datatypes.StorageSyncJournalEntry
 import com.github.nullptroma.wallenc.domain.interfaces.IStorage
 import com.github.nullptroma.wallenc.domain.interfaces.IStorageAccessor
@@ -23,6 +24,8 @@ class FakeStorage(
     override val numberOfFiles: StateFlow<Int?> = MutableStateFlow(0)
     override val isEmpty: Flow<Boolean?> = flowOf(true)
     override val metaInfo: StateFlow<IStorageMetaInfo> = MutableStateFlow(meta)
+    override val metaLoadState: StateFlow<StorageMetaLoadState> =
+        MutableStateFlow(StorageMetaLoadState.Ready)
     override val isVirtualStorage: Boolean = false
     override val accessor: IStorageAccessor = accessorImpl
 

usecases/src/test/java/com/github/nullptroma/wallenc/usecases/fakes/FakeVaultsManager.kt

@@ -24,6 +24,8 @@ class FakeUnlockManager : IUnlockManager {
 
     override suspend fun open(storage: IStorage, key: EncryptKey, rememberPassword: Boolean): IStorage = storage
 
+    override suspend fun rememberKey(storage: IStorage, key: EncryptKey) = Unit
+
     override suspend fun close(storage: IStorage) = Unit
 
     override suspend fun close(uuid: UUID) = Unit