Release v1.4.16 with crash prevention and hang protection

- Add 30s fetch timeouts to ALL API calls (Real-Debrid, BestDebrid, AllDebrid, Mega-Web)
- Fix race condition in concurrent worker indexing (runWithConcurrency)
- Guard JSON.parse in RealDebrid response with try-catch
- Add try-catch to fs.mkdirSync in download pipeline (handles permission denied)
- Convert MD5/SHA1 hashing to streaming (prevents OOM on large files)
- Add error handling for hash manifest file reading
- Prevent infinite hangs on unresponsive API endpoints

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.4.15",
+  "version": "1.4.16",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "real-debrid-downloader",
-      "version": "1.4.15",
+      "version": "1.4.16",
       "license": "MIT",
       "dependencies": {
         "adm-zip": "^0.5.16",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.4.15",
+  "version": "1.4.16",
   "description": "Real-Debrid Downloader Desktop (Electron + React + TypeScript)",
   "main": "build/main/main/main.js",
   "author": "Sucukdeluxe",

src/main/debrid.ts

@@ -1,8 +1,11 @@
 import { AppSettings, DebridFallbackProvider, DebridProvider } from "../shared/types";
 import { REQUEST_RETRIES } from "./constants";
+import { logger } from "./logger";
 import { RealDebridClient, UnrestrictedLink } from "./realdebrid";
 import { compactErrorText, filenameFromUrl, looksLikeOpaqueFilename, sleep } from "./utils";
 
+const API_TIMEOUT_MS = 30000;
+
 const BEST_DEBRID_API_BASE = "https://bestdebrid.com/api/v1";
 const ALL_DEBRID_API_BASE = "https://api.alldebrid.com/v4";
 
@@ -216,11 +219,19 @@ async function runWithConcurrency<T>(items: T[], concurrency: number, worker: (i
   }
   const size = Math.max(1, Math.min(concurrency, items.length));
   let index = 0;
-  const runners = Array.from({ length: size }, async () => {
-    while (index < items.length) {
-      const current = items[index];
+  const next = (): T | undefined => {
+    if (index >= items.length) {
+      return undefined;
+    }
+    const item = items[index];
     index += 1;
+    return item;
+  };
+  const runners = Array.from({ length: size }, async () => {
+    let current = next();
+    while (current !== undefined) {
       await worker(current);
+      current = next();
     }
   });
   await Promise.all(runners);
@@ -243,7 +254,8 @@ async function resolveRapidgatorFilename(link: string): Promise<string> {
           "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36",
           Accept: "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
           "Accept-Language": "en-US,en;q=0.9,de;q=0.8"
-        }
+        },
+        signal: AbortSignal.timeout(API_TIMEOUT_MS)
       });
       if (!response.ok) {
         if (shouldRetryStatus(response.status) && attempt < REQUEST_RETRIES + 2) {
@@ -348,7 +360,8 @@ class BestDebridClient {
 
         const response = await fetch(request.url, {
           method: "GET",
-          headers
+          headers,
+          signal: AbortSignal.timeout(API_TIMEOUT_MS)
         });
         const text = await response.text();
         const parsed = parseJson(text);
@@ -432,7 +445,8 @@ class AllDebridClient {
           "Content-Type": "application/x-www-form-urlencoded",
           "User-Agent": "RD-Node-Downloader/1.1.15"
         },
-        body
+        body,
+        signal: AbortSignal.timeout(API_TIMEOUT_MS)
       });
 
       const text = await response.text();
@@ -484,7 +498,8 @@ class AllDebridClient {
             "Content-Type": "application/x-www-form-urlencoded",
             "User-Agent": "RD-Node-Downloader/1.1.12"
           },
-          body: new URLSearchParams({ link })
+          body: new URLSearchParams({ link }),
+          signal: AbortSignal.timeout(API_TIMEOUT_MS)
         });
         const text = await response.text();
         const payload = asRecord(parseJson(text));

src/main/download-manager.ts

@@ -1851,7 +1851,11 @@ export class DownloadManager extends EventEmitter {
         item.provider = unrestricted.provider;
         item.retries += unrestricted.retriesUsed;
         item.fileName = sanitizeFilename(unrestricted.fileName || filenameFromUrl(item.url));
+        try {
           fs.mkdirSync(pkg.outputDir, { recursive: true });
+        } catch (mkdirError) {
+          throw new Error(`Zielordner kann nicht erstellt werden: ${compactErrorText(mkdirError)}`);
+        }
         const existingTargetPath = String(item.targetPath || "").trim();
         const canReuseExistingTarget = existingTargetPath
           && isPathInsideDir(existingTargetPath, pkg.outputDir)

src/main/integrity.ts

@@ -50,7 +50,12 @@ export function readHashManifest(packageDir: string): Map<string, ParsedHashEntr
       continue;
     }
     const filePath = path.join(packageDir, entry.name);
-    const lines = fs.readFileSync(filePath, "utf8").split(/\r?\n/);
+    let lines: string[];
+    try {
+      lines = fs.readFileSync(filePath, "utf8").split(/\r?\n/);
+    } catch {
+      continue;
+    }
     for (const line of lines) {
       const parsed = parseHashLine(line);
       if (!parsed) {
@@ -93,9 +98,12 @@ async function hashFile(filePath: string, algorithm: "crc32" | "md5" | "sha1"):
   }
 
   const hash = crypto.createHash(algorithm);
-  const data = fs.readFileSync(filePath);
-  hash.update(data);
-  return hash.digest("hex").toLowerCase();
+  const stream = fs.createReadStream(filePath, { highWaterMark: 1024 * 1024 });
+  return await new Promise<string>((resolve, reject) => {
+    stream.on("data", (chunk: string | Buffer) => hash.update(typeof chunk === "string" ? Buffer.from(chunk) : chunk));
+    stream.on("error", reject);
+    stream.on("end", () => resolve(hash.digest("hex").toLowerCase()));
+  });
 }
 
 export async function validateFileAgainstManifest(filePath: string, packageDir: string): Promise<{ ok: boolean; message: string }> {

src/main/mega-web-fallback.ts

@@ -155,7 +155,8 @@ export class MegaWebFallback {
         password,
         remember: "on"
       }),
-      redirect: "manual"
+      redirect: "manual",
+      signal: AbortSignal.timeout(30000)
     });
 
     const cookie = parseSetCookieFromHeaders(response.headers);
@@ -169,7 +170,8 @@ export class MegaWebFallback {
         "User-Agent": "Mozilla/5.0",
         Cookie: cookie,
         Referer: DEBRID_REFERER
-      }
+      },
+      signal: AbortSignal.timeout(30000)
     });
     const verifyHtml = await verify.text();
     const hasDebridForm = /id=["']debridForm["']/i.test(verifyHtml) || /name=["']links["']/i.test(verifyHtml);
@@ -194,7 +196,8 @@ export class MegaWebFallback {
         links: link,
         password: "",
         showLinks: "1"
-      })
+      }),
+      signal: AbortSignal.timeout(30000)
     });
 
     const html = await page.text();
@@ -215,7 +218,8 @@ export class MegaWebFallback {
         body: new URLSearchParams({
           code,
           autodl: "0"
-        })
+        }),
+        signal: AbortSignal.timeout(15000)
       });
 
       const text = (await res.text()).trim();

src/main/realdebrid.ts

@@ -40,7 +40,8 @@ export class RealDebridClient {
             "Content-Type": "application/x-www-form-urlencoded",
             "User-Agent": "RD-Node-Downloader/1.1.12"
           },
-          body
+          body,
+          signal: AbortSignal.timeout(30000)
         });
 
         const text = await response.text();
@@ -53,7 +54,12 @@ export class RealDebridClient {
           throw new Error(parsed);
         }
 
-        const payload = JSON.parse(text) as Record<string, unknown>;
+        let payload: Record<string, unknown>;
+        try {
+          payload = JSON.parse(text) as Record<string, unknown>;
+        } catch {
+          throw new Error(`Ungültige JSON-Antwort: ${text.slice(0, 120)}`);
+        }
         const directUrl = String(payload.download || payload.link || "").trim();
         if (!directUrl) {
           throw new Error("Unrestrict ohne Download-URL");