Add multi-provider fallback with AllDebrid and fix packaged UI path

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.1.9",
+  "version": "1.1.12",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "real-debrid-downloader",
-      "version": "1.1.9",
+      "version": "1.1.12",
       "license": "MIT",
       "dependencies": {
         "adm-zip": "^0.5.16",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.1.11",
+  "version": "1.1.12",
   "description": "Real-Debrid Downloader Desktop (Electron + React + TypeScript)",
   "main": "build/main/main/main.js",
   "author": "Sucukdeluxe",

scripts/debrid_service_smoke.ts

@@ -0,0 +1,39 @@
+import { DebridService } from "../src/main/debrid";
+import { defaultSettings } from "../src/main/constants";
+
+const links = [
+  "https://rapidgator.net/file/837ef967aede4935e3e0374c4e663b40/GTHDERTPIIP7P401.part1.rar.html",
+  "https://rapidgator.net/file/ef3c9d64c899f801d69d6888dad89dcd/GTHDERTPIIP7P401.part2.rar.html",
+  "https://rapidgator.net/file/b38130fcf1e8448953250b9a1ed7958d/GTHDERTPIIP7P401.part3.rar.html"
+];
+
+const settings = {
+  ...defaultSettings(),
+  token: process.env.RD_TOKEN || "",
+  megaToken: process.env.MEGA_TOKEN || "",
+  bestToken: process.env.BEST_TOKEN || "",
+  allDebridToken: process.env.ALLDEBRID_TOKEN || "",
+  providerPrimary: "alldebrid" as const,
+  providerSecondary: "realdebrid" as const,
+  providerTertiary: "megadebrid" as const,
+  autoProviderFallback: true
+};
+
+if (!settings.token && !settings.megaToken && !settings.bestToken && !settings.allDebridToken) {
+  console.error("No provider tokens set. Use RD_TOKEN/MEGA_TOKEN/BEST_TOKEN/ALLDEBRID_TOKEN.");
+  process.exit(1);
+}
+
+async function main(): Promise<void> {
+  const service = new DebridService(settings);
+  for (const link of links) {
+    try {
+      const result = await service.unrestrictLink(link);
+      console.log(`[OK] ${result.providerLabel} -> ${result.fileName}`);
+    } catch (error) {
+      console.log(`[FAIL] ${String(error)}`);
+    }
+  }
+}
+
+void main();

scripts/provider_smoke_check.mjs

@@ -0,0 +1,245 @@
+const RAPIDGATOR_LINKS = [
+  "https://rapidgator.net/file/837ef967aede4935e3e0374c4e663b40/GTHDERTPIIP7P401.part1.rar.html",
+  "https://rapidgator.net/file/ef3c9d64c899f801d69d6888dad89dcd/GTHDERTPIIP7P401.part2.rar.html",
+  "https://rapidgator.net/file/b38130fcf1e8448953250b9a1ed7958d/GTHDERTPIIP7P401.part3.rar.html"
+];
+
+const rdToken = process.env.RD_TOKEN || "";
+const megaToken = process.env.MEGA_TOKEN || "";
+const bestToken = process.env.BEST_TOKEN || "";
+const allDebridToken = process.env.ALLDEBRID_TOKEN || "";
+
+if (!rdToken && !megaToken && !bestToken && !allDebridToken) {
+  console.error("No provider token configured. Set RD_TOKEN and/or MEGA_TOKEN and/or BEST_TOKEN and/or ALLDEBRID_TOKEN.");
+  process.exit(1);
+}
+
+function asRecord(value) {
+  if (!value || typeof value !== "object" || Array.isArray(value)) {
+    return null;
+  }
+  return value;
+}
+
+function pickString(payload, keys) {
+  if (!payload) {
+    return "";
+  }
+  for (const key of keys) {
+    const value = payload[key];
+    if (typeof value === "string" && value.trim()) {
+      return value.trim();
+    }
+  }
+  return "";
+}
+
+function parseResponseError(status, bodyText, payload) {
+  return pickString(payload, ["response_text", "error", "message", "error_description"]) || bodyText || `HTTP ${status}`;
+}
+
+async function callRealDebrid(link) {
+  const response = await fetch("https://api.real-debrid.com/rest/1.0/unrestrict/link", {
+    method: "POST",
+    headers: {
+      Authorization: `Bearer ${rdToken}`,
+      "Content-Type": "application/x-www-form-urlencoded",
+      "User-Agent": "RD-Node-Downloader/1.1.12"
+    },
+    body: new URLSearchParams({ link })
+  });
+  const text = await response.text();
+  const payload = asRecord(safeJson(text));
+  if (!response.ok) {
+    return { ok: false, error: parseResponseError(response.status, text, payload) };
+  }
+  const direct = pickString(payload, ["download", "link"]);
+  if (!direct) {
+    return { ok: false, error: "Real-Debrid returned no download URL" };
+  }
+  return {
+    ok: true,
+    direct,
+    fileName: pickString(payload, ["filename", "fileName"])
+  };
+}
+
+async function callMegaDebrid(link) {
+  const response = await fetch(`https://www.mega-debrid.eu/api.php?action=getLink&token=${encodeURIComponent(megaToken)}`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/x-www-form-urlencoded",
+      "User-Agent": "RD-Node-Downloader/1.1.12"
+    },
+    body: new URLSearchParams({ link })
+  });
+  const text = await response.text();
+  const payload = asRecord(safeJson(text));
+  if (!response.ok) {
+    return { ok: false, error: parseResponseError(response.status, text, payload) };
+  }
+  const code = pickString(payload, ["response_code"]);
+  if (code && code.toLowerCase() !== "ok") {
+    return { ok: false, error: pickString(payload, ["response_text"]) || code };
+  }
+  const direct = pickString(payload, ["debridLink", "download", "link"]);
+  if (!direct) {
+    return { ok: false, error: "Mega-Debrid returned no debridLink" };
+  }
+  return {
+    ok: true,
+    direct,
+    fileName: pickString(payload, ["filename", "fileName"])
+  };
+}
+
+async function callBestDebrid(link) {
+  const encoded = encodeURIComponent(link);
+  const requests = [
+    {
+      url: `https://bestdebrid.com/api/v1/generateLink?link=${encoded}`,
+      useHeader: true
+    },
+    {
+      url: `https://bestdebrid.com/api/v1/generateLink?auth=${encodeURIComponent(bestToken)}&link=${encoded}`,
+      useHeader: false
+    }
+  ];
+
+  let lastError = "Unknown BestDebrid error";
+  for (const req of requests) {
+    const headers = {
+      "User-Agent": "RD-Node-Downloader/1.1.12"
+    };
+    if (req.useHeader) {
+      headers.Authorization = bestToken;
+    }
+    const response = await fetch(req.url, {
+      method: "GET",
+      headers
+    });
+    const text = await response.text();
+    const parsed = safeJson(text);
+    const payload = Array.isArray(parsed) ? asRecord(parsed[0]) : asRecord(parsed);
+
+    if (!response.ok) {
+      lastError = parseResponseError(response.status, text, payload);
+      continue;
+    }
+
+    const direct = pickString(payload, ["download", "debridLink", "link"]);
+    if (!direct) {
+      lastError = pickString(payload, ["response_text", "message", "error"]) || "BestDebrid returned no download URL";
+      continue;
+    }
+    return {
+      ok: true,
+      direct,
+      fileName: pickString(payload, ["filename", "fileName"])
+    };
+  }
+  return { ok: false, error: lastError };
+}
+
+async function callAllDebrid(link) {
+  const response = await fetch("https://api.alldebrid.com/v4/link/unlock", {
+    method: "POST",
+    headers: {
+      Authorization: `Bearer ${allDebridToken}`,
+      "Content-Type": "application/x-www-form-urlencoded",
+      "User-Agent": "RD-Node-Downloader/1.1.12"
+    },
+    body: new URLSearchParams({ link })
+  });
+
+  const text = await response.text();
+  const payload = asRecord(safeJson(text));
+  if (!response.ok) {
+    return { ok: false, error: parseResponseError(response.status, text, payload) };
+  }
+
+  if (pickString(payload, ["status"]) === "error") {
+    const err = asRecord(payload?.error);
+    return { ok: false, error: pickString(err, ["message", "code"]) || "AllDebrid API error" };
+  }
+
+  const data = asRecord(payload?.data);
+  const direct = pickString(data, ["link"]);
+  if (!direct) {
+    return { ok: false, error: "AllDebrid returned no download URL" };
+  }
+  return {
+    ok: true,
+    direct,
+    fileName: pickString(data, ["filename"])
+  };
+}
+
+function safeJson(text) {
+  try {
+    return JSON.parse(text);
+  } catch {
+    return null;
+  }
+}
+
+function hostFromUrl(url) {
+  try {
+    return new URL(url).host;
+  } catch {
+    return "invalid-url";
+  }
+}
+
+async function main() {
+  const providers = [];
+  if (rdToken) {
+    providers.push({ name: "Real-Debrid", run: callRealDebrid });
+  }
+  if (megaToken) {
+    providers.push({ name: "Mega-Debrid", run: callMegaDebrid });
+  }
+  if (bestToken) {
+    providers.push({ name: "BestDebrid", run: callBestDebrid });
+  }
+  if (allDebridToken) {
+    providers.push({ name: "AllDebrid", run: callAllDebrid });
+  }
+
+  let failures = 0;
+
+  for (const link of RAPIDGATOR_LINKS) {
+    console.log(`\nLink: ${link}`);
+    const results = [];
+    for (const provider of providers) {
+      try {
+        const result = await provider.run(link);
+        results.push({ provider: provider.name, ...result });
+      } catch (error) {
+        results.push({ provider: provider.name, ok: false, error: String(error) });
+      }
+    }
+
+    for (const result of results) {
+      if (result.ok) {
+        console.log(`  [OK]   ${result.provider} -> ${hostFromUrl(result.direct)} ${result.fileName ? `(${result.fileName})` : ""}`);
+      } else {
+        console.log(`  [FAIL] ${result.provider} -> ${result.error}`);
+      }
+    }
+
+    const fallbackPick = results.find((entry) => entry.ok);
+    if (fallbackPick) {
+      console.log(`  [AUTO] Selected by fallback order: ${fallbackPick.provider}`);
+    } else {
+      failures += 1;
+      console.log("  [AUTO] No provider could unrestrict this link");
+    }
+  }
+
+  if (failures > 0) {
+    process.exitCode = 2;
+  }
+}
+
+await main();

src/main/app-controller.ts

@@ -28,13 +28,17 @@ export class AppController {
     if (this.settings.autoResumeOnStart) {
       const snapshot = this.manager.getSnapshot();
       const hasPending = Object.values(snapshot.session.items).some((item) => item.status === "queued" || item.status === "reconnect_wait");
-      if (hasPending && this.settings.token.trim()) {
+      if (hasPending && this.hasAnyProviderToken(this.settings)) {
         this.manager.start();
         logger.info("Auto-Resume beim Start aktiviert");
       }
     }
   }
 
+  private hasAnyProviderToken(settings: AppSettings): boolean {
+    return Boolean(settings.token.trim() || settings.megaToken.trim() || settings.bestToken.trim() || settings.allDebridToken.trim());
+  }
+
   public onState: ((snapshot: UiSnapshot) => void) | null = null;
 
   public getSnapshot(): UiSnapshot {

src/main/constants.ts

@@ -2,8 +2,8 @@ import path from "node:path";
 import os from "node:os";
 import { AppSettings } from "../shared/types";
 
-export const APP_NAME = "Real-Debrid Download Manager";
+export const APP_NAME = "Debrid Download Manager";
-export const APP_VERSION = "1.1.11";
+export const APP_VERSION = "1.1.12";
 export const API_BASE_URL = "https://api.real-debrid.com/rest/1.0";
 
 export const DCRYPT_UPLOAD_URL = "https://dcrypt.it/decrypt/upload";
@@ -28,7 +28,14 @@ export function defaultSettings(): AppSettings {
   const baseDir = path.join(os.homedir(), "Downloads", "RealDebrid");
   return {
     token: "",
+    megaToken: "",
+    bestToken: "",
+    allDebridToken: "",
     rememberToken: true,
+    providerPrimary: "realdebrid",
+    providerSecondary: "megadebrid",
+    providerTertiary: "bestdebrid",
+    autoProviderFallback: true,
     outputDir: baseDir,
     packageName: "",
     autoExtract: true,

src/main/debrid.ts

@@ -0,0 +1,408 @@
+import { AppSettings, DebridProvider } from "../shared/types";
+import { REQUEST_RETRIES } from "./constants";
+import { RealDebridClient, UnrestrictedLink } from "./realdebrid";
+import { compactErrorText, filenameFromUrl, sleep } from "./utils";
+
+const MEGA_DEBRID_API = "https://www.mega-debrid.eu/api.php";
+const BEST_DEBRID_API_BASE = "https://bestdebrid.com/api/v1";
+const ALL_DEBRID_API_BASE = "https://api.alldebrid.com/v4";
+
+const PROVIDER_LABELS: Record<DebridProvider, string> = {
+  realdebrid: "Real-Debrid",
+  megadebrid: "Mega-Debrid",
+  bestdebrid: "BestDebrid",
+  alldebrid: "AllDebrid"
+};
+
+interface ProviderUnrestrictedLink extends UnrestrictedLink {
+  provider: DebridProvider;
+  providerLabel: string;
+}
+
+type BestDebridRequest = {
+  url: string;
+  useAuthHeader: boolean;
+};
+
+function shouldRetryStatus(status: number): boolean {
+  return status === 429 || status >= 500;
+}
+
+function retryDelay(attempt: number): number {
+  return Math.min(5000, 400 * 2 ** attempt);
+}
+
+function asRecord(value: unknown): Record<string, unknown> | null {
+  if (!value || typeof value !== "object" || Array.isArray(value)) {
+    return null;
+  }
+  return value as Record<string, unknown>;
+}
+
+function parseJson(text: string): unknown {
+  try {
+    return JSON.parse(text) as unknown;
+  } catch {
+    return null;
+  }
+}
+
+function pickString(payload: Record<string, unknown> | null, keys: string[]): string {
+  if (!payload) {
+    return "";
+  }
+  for (const key of keys) {
+    const value = payload[key];
+    if (typeof value === "string" && value.trim()) {
+      return value.trim();
+    }
+  }
+  return "";
+}
+
+function pickNumber(payload: Record<string, unknown> | null, keys: string[]): number | null {
+  if (!payload) {
+    return null;
+  }
+  for (const key of keys) {
+    const value = Number(payload[key] ?? NaN);
+    if (Number.isFinite(value) && value > 0) {
+      return Math.floor(value);
+    }
+  }
+  return null;
+}
+
+function parseError(status: number, responseText: string, payload: Record<string, unknown> | null): string {
+  const fromPayload = pickString(payload, ["response_text", "error", "message", "detail", "error_description"]);
+  if (fromPayload) {
+    return fromPayload;
+  }
+  const compact = compactErrorText(responseText);
+  if (compact && compact !== "Unbekannter Fehler") {
+    return compact;
+  }
+  return `HTTP ${status}`;
+}
+
+function uniqueProviderOrder(order: DebridProvider[]): DebridProvider[] {
+  const seen = new Set<DebridProvider>();
+  const result: DebridProvider[] = [];
+  for (const provider of order) {
+    if (seen.has(provider)) {
+      continue;
+    }
+    seen.add(provider);
+    result.push(provider);
+  }
+  return result;
+}
+
+function buildBestDebridRequests(link: string, token: string): BestDebridRequest[] {
+  const linkParam = encodeURIComponent(link);
+  const authParam = encodeURIComponent(token);
+  return [
+    {
+      url: `${BEST_DEBRID_API_BASE}/generateLink?link=${linkParam}`,
+      useAuthHeader: true
+    },
+    {
+      url: `${BEST_DEBRID_API_BASE}/generateLink?auth=${authParam}&link=${linkParam}`,
+      useAuthHeader: false
+    }
+  ];
+}
+
+class MegaDebridClient {
+  private token: string;
+
+  public constructor(token: string) {
+    this.token = token;
+  }
+
+  public async unrestrictLink(link: string): Promise<UnrestrictedLink> {
+    let lastError = "";
+    for (let attempt = 1; attempt <= REQUEST_RETRIES; attempt += 1) {
+      try {
+        const body = new URLSearchParams({ link });
+        const response = await fetch(`${MEGA_DEBRID_API}?action=getLink&token=${encodeURIComponent(this.token)}`, {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/x-www-form-urlencoded",
+            "User-Agent": "RD-Node-Downloader/1.1.12"
+          },
+          body
+        });
+        const text = await response.text();
+        const payload = asRecord(parseJson(text));
+
+        if (!response.ok) {
+          const reason = parseError(response.status, text, payload);
+          if (shouldRetryStatus(response.status) && attempt < REQUEST_RETRIES) {
+            await sleep(retryDelay(attempt));
+            continue;
+          }
+          throw new Error(reason);
+        }
+
+        const responseCode = pickString(payload, ["response_code"]);
+        if (responseCode && responseCode.toLowerCase() !== "ok") {
+          throw new Error(pickString(payload, ["response_text"]) || responseCode);
+        }
+
+        const directUrl = pickString(payload, ["debridLink", "download", "link"]);
+        if (!directUrl) {
+          throw new Error("Mega-Debrid Antwort ohne debridLink");
+        }
+
+        const fileName = pickString(payload, ["filename", "fileName"]) || filenameFromUrl(link);
+        const fileSize = pickNumber(payload, ["filesize", "size"]);
+        return {
+          fileName,
+          directUrl,
+          fileSize,
+          retriesUsed: attempt - 1
+        };
+      } catch (error) {
+        lastError = compactErrorText(error);
+        if (attempt >= REQUEST_RETRIES) {
+          break;
+        }
+        await sleep(retryDelay(attempt));
+      }
+    }
+    throw new Error(lastError || "Mega-Debrid Unrestrict fehlgeschlagen");
+  }
+}
+
+class BestDebridClient {
+  private token: string;
+
+  public constructor(token: string) {
+    this.token = token;
+  }
+
+  public async unrestrictLink(link: string): Promise<UnrestrictedLink> {
+    const requests = buildBestDebridRequests(link, this.token);
+    let lastError = "";
+
+    for (const request of requests) {
+      try {
+        return await this.tryRequest(request, link);
+      } catch (error) {
+        lastError = compactErrorText(error);
+      }
+    }
+
+    throw new Error(lastError || "BestDebrid Unrestrict fehlgeschlagen");
+  }
+
+  private async tryRequest(request: BestDebridRequest, originalLink: string): Promise<UnrestrictedLink> {
+    let lastError = "";
+    for (let attempt = 1; attempt <= REQUEST_RETRIES; attempt += 1) {
+      try {
+        const headers: Record<string, string> = {
+          "User-Agent": "RD-Node-Downloader/1.1.12"
+        };
+        if (request.useAuthHeader) {
+          headers.Authorization = this.token;
+        }
+
+        const response = await fetch(request.url, {
+          method: "GET",
+          headers
+        });
+        const text = await response.text();
+        const parsed = parseJson(text);
+        const payload = Array.isArray(parsed) ? asRecord(parsed[0]) : asRecord(parsed);
+
+        if (!response.ok) {
+          const reason = parseError(response.status, text, payload);
+          if (shouldRetryStatus(response.status) && attempt < REQUEST_RETRIES) {
+            await sleep(retryDelay(attempt));
+            continue;
+          }
+          throw new Error(reason);
+        }
+
+        const directUrl = pickString(payload, ["download", "debridLink", "link"]);
+        if (directUrl) {
+          const fileName = pickString(payload, ["filename", "fileName"]) || filenameFromUrl(originalLink);
+          const fileSize = pickNumber(payload, ["filesize", "size", "bytes"]);
+          return {
+            fileName,
+            directUrl,
+            fileSize,
+            retriesUsed: attempt - 1
+          };
+        }
+
+        const message = pickString(payload, ["response_text", "message", "error"]);
+        if (message) {
+          throw new Error(message);
+        }
+
+        throw new Error("BestDebrid Antwort ohne Download-Link");
+      } catch (error) {
+        lastError = compactErrorText(error);
+        if (attempt >= REQUEST_RETRIES) {
+          break;
+        }
+        await sleep(retryDelay(attempt));
+      }
+    }
+    throw new Error(lastError || "BestDebrid Request fehlgeschlagen");
+  }
+}
+
+class AllDebridClient {
+  private token: string;
+
+  public constructor(token: string) {
+    this.token = token;
+  }
+
+  public async unrestrictLink(link: string): Promise<UnrestrictedLink> {
+    let lastError = "";
+    for (let attempt = 1; attempt <= REQUEST_RETRIES; attempt += 1) {
+      try {
+        const response = await fetch(`${ALL_DEBRID_API_BASE}/link/unlock`, {
+          method: "POST",
+          headers: {
+            Authorization: `Bearer ${this.token}`,
+            "Content-Type": "application/x-www-form-urlencoded",
+            "User-Agent": "RD-Node-Downloader/1.1.12"
+          },
+          body: new URLSearchParams({ link })
+        });
+        const text = await response.text();
+        const payload = asRecord(parseJson(text));
+
+        if (!response.ok) {
+          const reason = parseError(response.status, text, payload);
+          if (shouldRetryStatus(response.status) && attempt < REQUEST_RETRIES) {
+            await sleep(retryDelay(attempt));
+            continue;
+          }
+          throw new Error(reason);
+        }
+
+        const status = pickString(payload, ["status"]);
+        if (status && status.toLowerCase() === "error") {
+          const errorObj = asRecord(payload?.error);
+          throw new Error(pickString(errorObj, ["message", "code"]) || "AllDebrid API error");
+        }
+
+        const data = asRecord(payload?.data);
+        const directUrl = pickString(data, ["link"]);
+        if (!directUrl) {
+          throw new Error("AllDebrid Antwort ohne Download-Link");
+        }
+
+        return {
+          fileName: pickString(data, ["filename"]) || filenameFromUrl(link),
+          directUrl,
+          fileSize: pickNumber(data, ["filesize"]),
+          retriesUsed: attempt - 1
+        };
+      } catch (error) {
+        lastError = compactErrorText(error);
+        if (attempt >= REQUEST_RETRIES) {
+          break;
+        }
+        await sleep(retryDelay(attempt));
+      }
+    }
+
+    throw new Error(lastError || "AllDebrid Unrestrict fehlgeschlagen");
+  }
+}
+
+export class DebridService {
+  private settings: AppSettings;
+
+  private realDebridClient: RealDebridClient;
+
+  private allDebridClient: AllDebridClient;
+
+  public constructor(settings: AppSettings) {
+    this.settings = settings;
+    this.realDebridClient = new RealDebridClient(settings.token);
+    this.allDebridClient = new AllDebridClient(settings.allDebridToken);
+  }
+
+  public setSettings(next: AppSettings): void {
+    this.settings = next;
+    this.realDebridClient = new RealDebridClient(next.token);
+    this.allDebridClient = new AllDebridClient(next.allDebridToken);
+  }
+
+  public async unrestrictLink(link: string): Promise<ProviderUnrestrictedLink> {
+    const order = uniqueProviderOrder([
+      this.settings.providerPrimary,
+      this.settings.providerSecondary,
+      this.settings.providerTertiary,
+      "realdebrid",
+      "megadebrid",
+      "bestdebrid",
+      "alldebrid"
+    ]);
+
+    let configuredFound = false;
+    const attempts: string[] = [];
+
+    for (const provider of order) {
+      const token = this.getProviderToken(provider).trim();
+      if (!token) {
+        continue;
+      }
+      configuredFound = true;
+      if (!this.settings.autoProviderFallback && attempts.length > 0) {
+        break;
+      }
+
+      try {
+        const result = await this.unrestrictViaProvider(provider, link, token);
+        return {
+          ...result,
+          provider,
+          providerLabel: PROVIDER_LABELS[provider]
+        };
+      } catch (error) {
+        attempts.push(`${PROVIDER_LABELS[provider]}: ${compactErrorText(error)}`);
+      }
+    }
+
+    if (!configuredFound) {
+      throw new Error("Kein Debrid-Provider konfiguriert (API-Key fehlt)");
+    }
+
+    throw new Error(`Unrestrict fehlgeschlagen: ${attempts.join(" | ")}`);
+  }
+
+  private getProviderToken(provider: DebridProvider): string {
+    if (provider === "realdebrid") {
+      return this.settings.token;
+    }
+    if (provider === "megadebrid") {
+      return this.settings.megaToken;
+    }
+    if (provider === "alldebrid") {
+      return this.settings.allDebridToken;
+    }
+    return this.settings.bestToken;
+  }
+
+  private async unrestrictViaProvider(provider: DebridProvider, link: string, token: string): Promise<UnrestrictedLink> {
+    if (provider === "realdebrid") {
+      return this.realDebridClient.unrestrictLink(link);
+    }
+    if (provider === "megadebrid") {
+      return new MegaDebridClient(token).unrestrictLink(link);
+    }
+    if (provider === "alldebrid") {
+      return this.allDebridClient.unrestrictLink(link);
+    }
+    return new BestDebridClient(token).unrestrictLink(link);
+  }
+}

src/main/download-manager.ts

@@ -6,10 +6,10 @@ import { v4 as uuidv4 } from "uuid";
 import { AppSettings, DownloadItem, DownloadSummary, DownloadStatus, PackageEntry, ParsedPackageInput, SessionState, UiSnapshot } from "../shared/types";
 import { CHUNK_SIZE, REQUEST_RETRIES } from "./constants";
 import { cleanupCancelledPackageArtifacts, removeDownloadLinkArtifacts, removeSampleArtifacts } from "./cleanup";
+import { DebridService } from "./debrid";
 import { extractPackageArchives } from "./extractor";
 import { validateFileAgainstManifest } from "./integrity";
 import { logger } from "./logger";
-import { RealDebridClient } from "./realdebrid";
 import { StoragePaths, saveSession } from "./storage";
 import { compactErrorText, ensureDirPath, filenameFromUrl, formatEta, humanSize, nowMs, sanitizeFilename, sleep } from "./utils";
 
@@ -47,6 +47,22 @@ function isFinishedStatus(status: DownloadStatus): boolean {
   return status === "completed" || status === "failed" || status === "cancelled";
 }
 
+function providerLabel(provider: DownloadItem["provider"]): string {
+  if (provider === "realdebrid") {
+    return "Real-Debrid";
+  }
+  if (provider === "megadebrid") {
+    return "Mega-Debrid";
+  }
+  if (provider === "bestdebrid") {
+    return "BestDebrid";
+  }
+  if (provider === "alldebrid") {
+    return "AllDebrid";
+  }
+  return "Debrid";
+}
+
 function nextAvailablePath(targetPath: string): string {
   if (!fs.existsSync(targetPath)) {
     return targetPath;
@@ -69,7 +85,7 @@ export class DownloadManager extends EventEmitter {
 
   private storagePaths: StoragePaths;
 
-  private rdClient: RealDebridClient;
+  private debridService: DebridService;
 
   private activeTasks = new Map<string, ActiveTask>();
 
@@ -88,17 +104,14 @@ export class DownloadManager extends EventEmitter {
     this.settings = settings;
     this.session = cloneSession(session);
     this.storagePaths = storagePaths;
-    this.rdClient = new RealDebridClient(settings.token);
+    this.debridService = new DebridService(settings);
     this.applyOnStartCleanupPolicy();
     this.normalizeSessionStatuses();
   }
 
   public setSettings(next: AppSettings): void {
-    const tokenChanged = next.token !== this.settings.token;
     this.settings = next;
-    if (tokenChanged) {
+    this.debridService.setSettings(next);
-      this.rdClient = new RealDebridClient(next.token);
-    }
     this.emitState();
   }
 
@@ -180,6 +193,7 @@ export class DownloadManager extends EventEmitter {
           id: itemId,
           packageId,
           url: link,
+          provider: null,
           status: "queued",
           retries: 0,
           speedBps: 0,
@@ -278,6 +292,9 @@ export class DownloadManager extends EventEmitter {
 
   private normalizeSessionStatuses(): void {
     for (const item of Object.values(this.session.items)) {
+      if (item.provider !== "realdebrid" && item.provider !== "megadebrid" && item.provider !== "bestdebrid" && item.provider !== "alldebrid") {
+        item.provider = null;
+      }
       if (item.status === "downloading" || item.status === "validating" || item.status === "extracting" || item.status === "integrity_check") {
         item.status = "queued";
         item.speedBps = 0;
@@ -440,7 +457,7 @@ export class DownloadManager extends EventEmitter {
     }
 
     item.status = "validating";
-    item.fullStatus = "Link wird via Real-Debrid umgewandelt";
+    item.fullStatus = "Link wird umgewandelt";
     item.updatedAt = nowMs();
     pkg.status = "downloading";
     pkg.updatedAt = nowMs();
@@ -475,14 +492,15 @@ export class DownloadManager extends EventEmitter {
     }
 
     try {
-      const unrestricted = await this.rdClient.unrestrictLink(item.url);
+      const unrestricted = await this.debridService.unrestrictLink(item.url);
+      item.provider = unrestricted.provider;
       item.retries = unrestricted.retriesUsed;
       item.fileName = sanitizeFilename(unrestricted.fileName || filenameFromUrl(item.url));
       fs.mkdirSync(pkg.outputDir, { recursive: true });
       item.targetPath = nextAvailablePath(path.join(pkg.outputDir, item.fileName));
       item.totalBytes = unrestricted.fileSize;
       item.status = "downloading";
-      item.fullStatus = "Download läuft";
+      item.fullStatus = `Download läuft (${unrestricted.providerLabel})`;
       item.updatedAt = nowMs();
       this.emitState();
 
@@ -693,7 +711,7 @@ export class DownloadManager extends EventEmitter {
           item.speedBps = Math.max(0, Math.floor(speed));
           item.downloadedBytes = written;
           item.progressPercent = item.totalBytes ? Math.max(0, Math.min(100, Math.floor((written / item.totalBytes) * 100))) : 0;
-          item.fullStatus = "Download läuft";
+          item.fullStatus = `Download läuft (${providerLabel(item.provider)})`;
           item.updatedAt = nowMs();
           this.emitState();
         }

src/main/main.ts

@@ -4,6 +4,7 @@ import { AddLinksPayload, AppSettings } from "../shared/types";
 import { AppController } from "./app-controller";
 import { IPC_CHANNELS } from "../shared/ipc";
 import { logger } from "./logger";
+import { APP_NAME } from "./constants";
 
 let mainWindow: BrowserWindow | null = null;
 const controller = new AppController();
@@ -19,7 +20,7 @@ function createWindow(): BrowserWindow {
     minWidth: 1120,
     minHeight: 760,
     backgroundColor: "#070b14",
-    title: `Real-Debrid Download Manager v${controller.getVersion()}`,
+    title: `${APP_NAME} v${controller.getVersion()}`,
     webPreferences: {
       contextIsolation: true,
       nodeIntegration: false,
@@ -30,7 +31,7 @@ function createWindow(): BrowserWindow {
   if (isDevMode()) {
     void window.loadURL("http://localhost:5173");
   } else {
-    void window.loadFile(path.join(__dirname, "../renderer/index.html"));
+    void window.loadFile(path.join(app.getAppPath(), "build", "renderer", "index.html"));
   }
 
   return window;

src/main/realdebrid.ts

@@ -38,7 +38,7 @@ export class RealDebridClient {
           headers: {
             Authorization: `Bearer ${this.token}`,
             "Content-Type": "application/x-www-form-urlencoded",
-            "User-Agent": "RD-Node-Downloader/1.1.9"
+            "User-Agent": "RD-Node-Downloader/1.1.12"
           },
           body
         });

src/main/storage.ts

@@ -4,6 +4,8 @@ import { AppSettings, SessionState } from "../shared/types";
 import { defaultSettings } from "./constants";
 import { logger } from "./logger";
 
+const VALID_PROVIDERS = new Set(["realdebrid", "megadebrid", "bestdebrid", "alldebrid"]);
+
 export interface StoragePaths {
   baseDir: string;
   configFile: string;
@@ -33,6 +35,16 @@ export function loadSettings(paths: StoragePaths): AppSettings {
       ...defaultSettings(),
       ...parsed
     };
+    if (!VALID_PROVIDERS.has(merged.providerPrimary)) {
+      merged.providerPrimary = "realdebrid";
+    }
+    if (!VALID_PROVIDERS.has(merged.providerSecondary)) {
+      merged.providerSecondary = "megadebrid";
+    }
+    if (!VALID_PROVIDERS.has(merged.providerTertiary)) {
+      merged.providerTertiary = "bestdebrid";
+    }
+    merged.autoProviderFallback = Boolean(merged.autoProviderFallback);
     merged.maxParallel = Math.max(1, Math.min(50, Number(merged.maxParallel) || 4));
     merged.speedLimitKbps = Math.max(0, Math.min(500000, Number(merged.speedLimitKbps) || 0));
     merged.reconnectWaitSeconds = Math.max(10, Math.min(600, Number(merged.reconnectWaitSeconds) || 45));

src/renderer/App.tsx

@@ -1,12 +1,19 @@
 import { DragEvent, ReactElement, useEffect, useMemo, useState } from "react";
-import type { AppSettings, DownloadItem, PackageEntry, UiSnapshot } from "../shared/types";
+import type { AppSettings, DebridProvider, DownloadItem, PackageEntry, UiSnapshot } from "../shared/types";
 
 type Tab = "collector" | "downloads" | "settings";
 
 const emptySnapshot = (): UiSnapshot => ({
   settings: {
     token: "",
+    megaToken: "",
+    bestToken: "",
+    allDebridToken: "",
     rememberToken: true,
+    providerPrimary: "realdebrid",
+    providerSecondary: "megadebrid",
+    providerTertiary: "bestdebrid",
+    autoProviderFallback: true,
     outputDir: "",
     packageName: "",
     autoExtract: true,
@@ -58,6 +65,13 @@ const cleanupLabels: Record<string, string> = {
   package_done: "Sobald Paket fertig ist"
 };
 
+const providerLabels: Record<DebridProvider, string> = {
+  realdebrid: "Real-Debrid",
+  megadebrid: "Mega-Debrid",
+  bestdebrid: "BestDebrid",
+  alldebrid: "AllDebrid"
+};
+
 export function App(): ReactElement {
   const [snapshot, setSnapshot] = useState<UiSnapshot>(emptySnapshot);
   const [tab, setTab] = useState<Tab>("collector");
@@ -144,8 +158,8 @@ export function App(): ReactElement {
     <div className="app-shell">
       <header className="top-header">
         <div className="title-block">
-          <h1>Real-Debrid Download Manager</h1>
+          <h1>Debrid Download Manager</h1>
-          <span>JDownloader-Style Workflow</span>
+          <span>Multi-Provider Workflow</span>
         </div>
         <div className="metrics">
           <div>{snapshot.speedText}</div>
@@ -197,20 +211,64 @@ export function App(): ReactElement {
         {tab === "collector" && (
           <section className="grid-two">
             <article className="card">
-              <h3>Authentifizierung</h3>
+              <h3>Debrid Provider</h3>
-              <label>API Token</label>
+              <label>Real-Debrid API Token</label>
               <input
                 type="password"
                 value={settingsDraft.token}
                 onChange={(event) => setText("token", event.target.value)}
               />
+              <label>Mega-Debrid API Token</label>
+              <input
+                type="password"
+                value={settingsDraft.megaToken}
+                onChange={(event) => setText("megaToken", event.target.value)}
+              />
+              <label>BestDebrid API Token</label>
+              <input
+                type="password"
+                value={settingsDraft.bestToken}
+                onChange={(event) => setText("bestToken", event.target.value)}
+              />
+              <label>AllDebrid API Key</label>
+              <input
+                type="password"
+                value={settingsDraft.allDebridToken}
+                onChange={(event) => setText("allDebridToken", event.target.value)}
+              />
+              <label>Primärer Provider</label>
+              <select value={settingsDraft.providerPrimary} onChange={(event) => setText("providerPrimary", event.target.value)}>
+                {Object.entries(providerLabels).map(([key, label]) => (
+                  <option key={key} value={key}>{label}</option>
+                ))}
+              </select>
+              <label>Sekundärer Provider</label>
+              <select value={settingsDraft.providerSecondary} onChange={(event) => setText("providerSecondary", event.target.value)}>
+                {Object.entries(providerLabels).map(([key, label]) => (
+                  <option key={key} value={key}>{label}</option>
+                ))}
+              </select>
+              <label>Tertiärer Provider</label>
+              <select value={settingsDraft.providerTertiary} onChange={(event) => setText("providerTertiary", event.target.value)}>
+                {Object.entries(providerLabels).map(([key, label]) => (
+                  <option key={key} value={key}>{label}</option>
+                ))}
+              </select>
+              <label>
+                <input
+                  type="checkbox"
+                  checked={settingsDraft.autoProviderFallback}
+                  onChange={(event) => setBool("autoProviderFallback", event.target.checked)}
+                />
+                Bei Fehler/Fair-Use automatisch zum nächsten Provider wechseln
+              </label>
               <label>
                 <input
                   type="checkbox"
                   checked={settingsDraft.rememberToken}
                   onChange={(event) => setBool("rememberToken", event.target.checked)}
                 />
-                Token lokal speichern
+                API Keys lokal speichern
               </label>
               <label>GitHub Repo</label>
               <input value={settingsDraft.updateRepo} onChange={(event) => setText("updateRepo", event.target.value)} />
@@ -363,6 +421,7 @@ function PackageCard({ pkg, items, onCancel }: { pkg: PackageEntry; items: Downl
         <thead>
           <tr>
             <th>Datei</th>
+            <th>Provider</th>
             <th>Status</th>
             <th>Fortschritt</th>
             <th>Speed</th>
@@ -373,6 +432,7 @@ function PackageCard({ pkg, items, onCancel }: { pkg: PackageEntry; items: Downl
           {items.map((item) => (
             <tr key={item.id}>
               <td>{item.fileName}</td>
+              <td>{item.provider ? providerLabels[item.provider] : "-"}</td>
               <td title={item.fullStatus}>{item.fullStatus}</td>
               <td>{item.progressPercent}%</td>
               <td>{item.speedBps > 0 ? `${Math.floor(item.speedBps / 1024)} KB/s` : "0 KB/s"}</td>

src/renderer/index.html

@@ -3,7 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Real-Debrid Download Manager</title>
+    <title>Debrid Download Manager</title>
   </head>
   <body>
     <div id="root"></div>

src/shared/types.ts

@@ -14,10 +14,18 @@ export type CleanupMode = "none" | "trash" | "delete";
 export type ConflictMode = "overwrite" | "skip" | "rename" | "ask";
 export type SpeedMode = "global" | "per_download";
 export type FinishedCleanupPolicy = "never" | "immediate" | "on_start" | "package_done";
+export type DebridProvider = "realdebrid" | "megadebrid" | "bestdebrid" | "alldebrid";
 
 export interface AppSettings {
   token: string;
+  megaToken: string;
+  bestToken: string;
+  allDebridToken: string;
   rememberToken: boolean;
+  providerPrimary: DebridProvider;
+  providerSecondary: DebridProvider;
+  providerTertiary: DebridProvider;
+  autoProviderFallback: boolean;
   outputDir: string;
   packageName: string;
   autoExtract: boolean;
@@ -45,6 +53,7 @@ export interface DownloadItem {
   id: string;
   packageId: string;
   url: string;
+  provider: DebridProvider | null;
   status: DownloadStatus;
   retries: number;
   speedBps: number;

tests/debrid.test.ts

@@ -0,0 +1,145 @@
+import { afterEach, describe, expect, it } from "vitest";
+import { defaultSettings } from "../src/main/constants";
+import { DebridService } from "../src/main/debrid";
+
+const originalFetch = globalThis.fetch;
+
+afterEach(() => {
+  globalThis.fetch = originalFetch;
+});
+
+describe("debrid service", () => {
+  it("falls back to Mega-Debrid when Real-Debrid fails", async () => {
+    const settings = {
+      ...defaultSettings(),
+      token: "rd-token",
+      megaToken: "mega-token",
+      bestToken: "",
+      providerPrimary: "realdebrid" as const,
+      providerSecondary: "megadebrid" as const,
+      providerTertiary: "bestdebrid" as const,
+      autoProviderFallback: true
+    };
+
+    globalThis.fetch = (async (input: RequestInfo | URL): Promise<Response> => {
+      const url = typeof input === "string" ? input : input instanceof URL ? input.toString() : input.url;
+      if (url.includes("api.real-debrid.com/rest/1.0/unrestrict/link")) {
+        return new Response(JSON.stringify({ error: "traffic_limit" }), {
+          status: 403,
+          headers: { "Content-Type": "application/json" }
+        });
+      }
+      if (url.includes("mega-debrid.eu/api.php?action=getLink")) {
+        return new Response(JSON.stringify({ response_code: "ok", debridLink: "https://mega.example/file.bin" }), {
+          status: 200,
+          headers: { "Content-Type": "application/json" }
+        });
+      }
+      return new Response("not-found", { status: 404 });
+    }) as typeof fetch;
+
+    const service = new DebridService(settings);
+    const result = await service.unrestrictLink("https://rapidgator.net/file/example.part1.rar.html");
+    expect(result.provider).toBe("megadebrid");
+    expect(result.directUrl).toBe("https://mega.example/file.bin");
+  });
+
+  it("does not fallback when auto fallback is disabled", async () => {
+    const settings = {
+      ...defaultSettings(),
+      token: "rd-token",
+      megaToken: "mega-token",
+      providerPrimary: "realdebrid" as const,
+      providerSecondary: "megadebrid" as const,
+      providerTertiary: "bestdebrid" as const,
+      autoProviderFallback: false
+    };
+
+    globalThis.fetch = (async (input: RequestInfo | URL): Promise<Response> => {
+      const url = typeof input === "string" ? input : input instanceof URL ? input.toString() : input.url;
+      if (url.includes("api.real-debrid.com/rest/1.0/unrestrict/link")) {
+        return new Response("traffic exhausted", { status: 429 });
+      }
+      return new Response(JSON.stringify({ response_code: "ok", debridLink: "https://mega.example/file.bin" }), {
+        status: 200,
+        headers: { "Content-Type": "application/json" }
+      });
+    }) as typeof fetch;
+
+    const service = new DebridService(settings);
+    await expect(service.unrestrictLink("https://rapidgator.net/file/example.part2.rar.html")).rejects.toThrow();
+  });
+
+  it("supports BestDebrid auth query fallback", async () => {
+    const settings = {
+      ...defaultSettings(),
+      token: "",
+      megaToken: "",
+      bestToken: "best-token",
+      providerPrimary: "bestdebrid" as const,
+      providerSecondary: "realdebrid" as const,
+      providerTertiary: "megadebrid" as const,
+      autoProviderFallback: true
+    };
+
+    globalThis.fetch = (async (input: RequestInfo | URL): Promise<Response> => {
+      const url = typeof input === "string" ? input : input instanceof URL ? input.toString() : input.url;
+      if (url.includes("/api/v1/generateLink?link=")) {
+        return new Response(JSON.stringify({ message: "Bad token, expired, or invalid" }), {
+          status: 200,
+          headers: { "Content-Type": "application/json" }
+        });
+      }
+      if (url.includes("/api/v1/generateLink?auth=")) {
+        return new Response(JSON.stringify({ download: "https://best.example/file.bin", filename: "file.bin", filesize: 2048 }), {
+          status: 200,
+          headers: { "Content-Type": "application/json" }
+        });
+      }
+      return new Response("not-found", { status: 404 });
+    }) as typeof fetch;
+
+    const service = new DebridService(settings);
+    const result = await service.unrestrictLink("https://rapidgator.net/file/example.part3.rar.html");
+    expect(result.provider).toBe("bestdebrid");
+    expect(result.fileSize).toBe(2048);
+  });
+
+  it("supports AllDebrid unlock", async () => {
+    const settings = {
+      ...defaultSettings(),
+      token: "",
+      megaToken: "",
+      bestToken: "",
+      allDebridToken: "ad-token",
+      providerPrimary: "alldebrid" as const,
+      providerSecondary: "realdebrid" as const,
+      providerTertiary: "megadebrid" as const,
+      autoProviderFallback: true
+    };
+
+    globalThis.fetch = (async (input: RequestInfo | URL): Promise<Response> => {
+      const url = typeof input === "string" ? input : input instanceof URL ? input.toString() : input.url;
+      if (url.includes("api.alldebrid.com/v4/link/unlock")) {
+        return new Response(JSON.stringify({
+          status: "success",
+          data: {
+            link: "https://alldebrid.example/file.bin",
+            filename: "file.bin",
+            filesize: 4096
+          }
+        }), {
+          status: 200,
+          headers: { "Content-Type": "application/json" }
+        });
+      }
+      return new Response("not-found", { status: 404 });
+    }) as typeof fetch;
+
+    const service = new DebridService(settings);
+    const result = await service.unrestrictLink("https://rapidgator.net/file/example.part4.rar.html");
+    expect(result.provider).toBe("alldebrid");
+    expect(result.directUrl).toBe("https://alldebrid.example/file.bin");
+    expect(result.fileSize).toBe(4096);
+  });
+});