Add session backup restore and release v1.4.68

CHANGELOG.md

@@ -2,6 +2,27 @@
 
 Alle nennenswerten Aenderungen werden in dieser Datei dokumentiert.
 
+## 1.4.68 - 2026-03-01
+
+Stabilitaets-Hotfix fuer Session-Verlust nach Update/Neustart: Session-Dateien haben jetzt ein robustes Backup-/Restore-Fallback.
+
+### Fixes
+
+- Session-Backup fuer Queue-Zustand eingefuehrt:
+  - Vor jedem Session-Save wird die vorherige Session als `.bak` gesichert (sync + async Pfad).
+  - Schuetzt gegen defekte/trunkierte Session-Datei beim Start.
+- Session-Autorestore beim Laden:
+  - Wenn `rd_session_state.json` defekt ist, wird automatisch `rd_session_state.json.bak` geladen.
+  - Das Backup wird danach best-effort wieder als primäre Session-Datei hergestellt.
+- Klarere Fehlersignale im Log:
+  - Eindeutige Meldung, ob primäre Session defekt war und Backup verwendet wurde.
+
+### Tests
+
+- Neue Tests in `tests/storage.test.ts`:
+  - Laden aus Session-Backup bei defekter primärer Session.
+  - Backup-Erstellung vor sync- und async-Session-Overwrite.
+
 ## 1.4.67 - 2026-03-01
 
 Hotfix fuer einen kritischen Start-Konflikt-Datenverlust und zusaetzliche Renamer-Haertung fuer reale Scene-Muster.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.4.67",
+  "version": "1.4.68",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "real-debrid-downloader",
-      "version": "1.4.67",
+      "version": "1.4.68",
       "license": "MIT",
       "dependencies": {
         "adm-zip": "^0.5.16",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.4.67",
+  "version": "1.4.68",
   "description": "Real-Debrid Downloader Desktop (Electron + React + TypeScript)",
   "main": "build/main/main/main.js",
   "author": "Sucukdeluxe",

src/main/storage.ts

@@ -365,6 +365,34 @@ function sessionTempPath(sessionFile: string, kind: "sync" | "async"): string {
   return `${sessionFile}.${kind}.tmp`;
 }
 
+function sessionBackupPath(sessionFile: string): string {
+  return `${sessionFile}.bak`;
+}
+
+function normalizeLoadedSessionTransientFields(session: SessionState): SessionState {
+  // Reset transient fields that may be stale from a previous crash
+  const ACTIVE_STATUSES = new Set(["downloading", "validating", "extracting", "integrity_check", "paused", "reconnect_wait"]);
+  for (const item of Object.values(session.items)) {
+    if (ACTIVE_STATUSES.has(item.status)) {
+      item.status = "queued";
+      item.lastError = "";
+    }
+    // Always clear stale speed values
+    item.speedBps = 0;
+  }
+
+  return session;
+}
+
+function readSessionFile(filePath: string): SessionState | null {
+  try {
+    const parsed = JSON.parse(fs.readFileSync(filePath, "utf8")) as unknown;
+    return normalizeLoadedSessionTransientFields(normalizeLoadedSession(parsed));
+  } catch {
+    return null;
+  }
+}
+
 export function saveSettings(paths: StoragePaths, settings: AppSettings): void {
   ensureBaseDir(paths.baseDir);
   // Create a backup of the existing config before overwriting
@@ -404,30 +432,40 @@ export function loadSession(paths: StoragePaths): SessionState {
   if (!fs.existsSync(paths.sessionFile)) {
     return emptySession();
   }
+
+  const primary = readSessionFile(paths.sessionFile);
+  if (primary) {
+    return primary;
+  }
+
+  const backupFile = sessionBackupPath(paths.sessionFile);
+  const backup = fs.existsSync(backupFile) ? readSessionFile(backupFile) : null;
+  if (backup) {
+    logger.warn("Session defekt, Backup-Datei wird verwendet");
     try {
-    const parsed = JSON.parse(fs.readFileSync(paths.sessionFile, "utf8")) as unknown;
-    const session = normalizeLoadedSession(parsed);
-
-    // Reset transient fields that may be stale from a previous crash
-    const ACTIVE_STATUSES = new Set(["downloading", "validating", "extracting", "integrity_check", "paused", "reconnect_wait"]);
-    for (const item of Object.values(session.items)) {
-      if (ACTIVE_STATUSES.has(item.status)) {
-        item.status = "queued";
-        item.lastError = "";
+      const payload = JSON.stringify({ ...backup, updatedAt: Date.now() });
+      const tempPath = sessionTempPath(paths.sessionFile, "sync");
+      fs.writeFileSync(tempPath, payload, "utf8");
+      syncRenameWithExdevFallback(tempPath, paths.sessionFile);
+    } catch {
+      // ignore restore write failure
     }
-      // Always clear stale speed values
-      item.speedBps = 0;
+    return backup;
   }
 
-    return session;
-  } catch (error) {
-    logger.error(`Session konnte nicht geladen werden: ${String(error)}`);
+  logger.error("Session konnte nicht geladen werden (auch Backup fehlgeschlagen)");
   return emptySession();
-  }
 }
 
 export function saveSession(paths: StoragePaths, session: SessionState): void {
   ensureBaseDir(paths.baseDir);
+  if (fs.existsSync(paths.sessionFile)) {
+    try {
+      fs.copyFileSync(paths.sessionFile, sessionBackupPath(paths.sessionFile));
+    } catch {
+      // Best-effort backup; proceed even if it fails
+    }
+  }
   const payload = JSON.stringify({ ...session, updatedAt: Date.now() });
   const tempPath = sessionTempPath(paths.sessionFile, "sync");
   fs.writeFileSync(tempPath, payload, "utf8");
@@ -439,6 +477,9 @@ let asyncSaveQueued: { paths: StoragePaths; payload: string } | null = null;
 
 async function writeSessionPayload(paths: StoragePaths, payload: string): Promise<void> {
   await fs.promises.mkdir(paths.baseDir, { recursive: true });
+  if (fs.existsSync(paths.sessionFile)) {
+    await fsp.copyFile(paths.sessionFile, sessionBackupPath(paths.sessionFile)).catch(() => {});
+  }
   const tempPath = sessionTempPath(paths.sessionFile, "async");
   await fsp.writeFile(tempPath, payload, "utf8");
   try {

tests/storage.test.ts

@@ -304,6 +304,58 @@ describe("settings storage", () => {
     expect(loaded.packageOrder).toEqual(empty.packageOrder);
   });
 
+  it("loads backup session when primary session is corrupted", () => {
+    const dir = fs.mkdtempSync(path.join(os.tmpdir(), "rd-store-"));
+    tempDirs.push(dir);
+    const paths = createStoragePaths(dir);
+
+    const backupSession = emptySession();
+    backupSession.packageOrder = ["pkg-backup"];
+    backupSession.packages["pkg-backup"] = {
+      id: "pkg-backup",
+      name: "Backup Package",
+      outputDir: path.join(dir, "out"),
+      extractDir: path.join(dir, "extract"),
+      status: "queued",
+      itemIds: ["item-backup"],
+      cancelled: false,
+      enabled: true,
+      createdAt: Date.now(),
+      updatedAt: Date.now()
+    };
+    backupSession.items["item-backup"] = {
+      id: "item-backup",
+      packageId: "pkg-backup",
+      url: "https://example.com/backup-file",
+      provider: null,
+      status: "queued",
+      retries: 0,
+      speedBps: 0,
+      downloadedBytes: 0,
+      totalBytes: null,
+      progressPercent: 0,
+      fileName: "backup-file.rar",
+      targetPath: path.join(dir, "out", "backup-file.rar"),
+      resumable: true,
+      attempts: 0,
+      lastError: "",
+      fullStatus: "Wartet",
+      createdAt: Date.now(),
+      updatedAt: Date.now()
+    };
+
+    fs.writeFileSync(`${paths.sessionFile}.bak`, JSON.stringify(backupSession), "utf8");
+    fs.writeFileSync(paths.sessionFile, "{broken-session-json", "utf8");
+
+    const loaded = loadSession(paths);
+    expect(loaded.packageOrder).toEqual(["pkg-backup"]);
+    expect(loaded.packages["pkg-backup"]?.name).toBe("Backup Package");
+    expect(loaded.items["item-backup"]?.fileName).toBe("backup-file.rar");
+
+    const restoredPrimary = JSON.parse(fs.readFileSync(paths.sessionFile, "utf8")) as { packages?: Record<string, unknown> };
+    expect(restoredPrimary.packages && "pkg-backup" in restoredPrimary.packages).toBe(true);
+  });
+
   it("returns defaults when config file contains invalid JSON", () => {
     const dir = fs.mkdtempSync(path.join(os.tmpdir(), "rd-store-"));
     tempDirs.push(dir);
@@ -395,6 +447,32 @@ describe("settings storage", () => {
     expect(persisted.summaryText).toBe("before-mutation");
   });
 
+  it("creates session backup before sync and async session overwrites", async () => {
+    const dir = fs.mkdtempSync(path.join(os.tmpdir(), "rd-store-"));
+    tempDirs.push(dir);
+    const paths = createStoragePaths(dir);
+
+    const first = emptySession();
+    first.summaryText = "first";
+    saveSession(paths, first);
+
+    const second = emptySession();
+    second.summaryText = "second";
+    saveSession(paths, second);
+
+    const backupAfterSync = JSON.parse(fs.readFileSync(`${paths.sessionFile}.bak`, "utf8")) as { summaryText?: string };
+    expect(backupAfterSync.summaryText).toBe("first");
+
+    const third = emptySession();
+    third.summaryText = "third";
+    await saveSessionAsync(paths, third);
+
+    const backupAfterAsync = JSON.parse(fs.readFileSync(`${paths.sessionFile}.bak`, "utf8")) as { summaryText?: string };
+    const primaryAfterAsync = JSON.parse(fs.readFileSync(paths.sessionFile, "utf8")) as { summaryText?: string };
+    expect(backupAfterAsync.summaryText).toBe("second");
+    expect(primaryAfterAsync.summaryText).toBe("third");
+  });
+
   it("applies defaults for missing fields when loading old config", () => {
     const dir = fs.mkdtempSync(path.join(os.tmpdir(), "rd-store-"));
     tempDirs.push(dir);