Fix Debrid-Link retry recovery

src/main/debug-server.ts

@@ -76,6 +76,21 @@ function readSupportHistory() {
   return loadHistory(getStoragePaths());
 }
 
+function extractDebugClientIp(req: http.IncomingMessage): string {
+  const forwarded = req.headers["x-forwarded-for"];
+  const forwardedValue = Array.isArray(forwarded) ? forwarded[0] : forwarded;
+  const forwardedIp = String(forwardedValue || "").split(",")[0]?.trim();
+  if (forwardedIp) {
+    return forwardedIp;
+  }
+  const realIp = String(req.headers["x-real-ip"] || "").trim();
+  if (realIp) {
+    return realIp;
+  }
+  const remote = String(req.socket.remoteAddress || req.socket.address()?.address || "").trim();
+  return remote.replace(/^::ffff:/i, "");
+}
+
 function getAiManifestPath(baseDir: string = runtimeBaseDir): string {
   return path.join(baseDir, AI_MANIFEST_FILE);
 }
@@ -431,7 +446,8 @@ function handleRequest(req: http.IncomingMessage, res: http.ServerResponse): voi
   if (traceConfig.enabled && traceConfig.logDebugRequests) {
     logTraceEvent("INFO", "debug-http", "Request", {
       method: req.method || "GET",
-      url: sanitizeRequestUrlForTrace(req.url || "/")
+      url: sanitizeRequestUrlForTrace(req.url || "/"),
+      clientIp: extractDebugClientIp(req)
     });
   }
 
@@ -449,7 +465,8 @@ function handleRequest(req: http.IncomingMessage, res: http.ServerResponse): voi
     if (traceConfig.enabled && traceConfig.logDebugRequests) {
       logTraceEvent("WARN", "debug-http", "Unauthorized request", {
         method: req.method || "GET",
-        url: sanitizeRequestUrlForTrace(req.url || "/")
+        url: sanitizeRequestUrlForTrace(req.url || "/"),
+        clientIp: extractDebugClientIp(req)
       });
     }
     jsonResponse(res, 401, { error: "Unauthorized" });

src/main/download-manager.ts

@@ -434,6 +434,11 @@ function shouldPreflightFinalizeItemFromDisk(item: DownloadItem): boolean {
   const text = `${item.fullStatus || ""} ${item.lastError || ""}`.toLowerCase();
   return text.includes("resume-link erneuern")
     || text.includes("resume link erneuern")
+    || text.includes("direktlink erneuern")
+    || text.includes("direktlink erschöpft")
+    || text.includes("direct_link_retry_exhausted")
+    || text.includes("download_underflow")
+    || text.includes("resume_download_underflow")
     || text.includes("range_ignored_on_resume")
     || text.includes("server ignorierte range");
 }
@@ -8142,16 +8147,21 @@ export class DownloadManager extends EventEmitter {
         if (response.status === 416 && existingBytes > 0) {
           await response.arrayBuffer().catch(() => undefined);
           const rangeTotal = parseContentRangeTotal(response.headers.get("content-range"));
-          const expectedTotal = knownTotal && knownTotal > 0 ? knownTotal : rangeTotal;
-          if (expectedTotal && existingBytes === expectedTotal) {
-            item.totalBytes = expectedTotal;
+          const expectedTotal = rangeTotal && rangeTotal > 0
+            ? rangeTotal
+            : (knownTotal && knownTotal > 0 ? knownTotal : null);
+          const closeEnoughToExpected = expectedTotal != null
+            && Math.abs(existingBytes - expectedTotal) <= ALLOCATION_UNIT_SIZE;
+          if (expectedTotal != null && closeEnoughToExpected) {
+            const finalizedTotal = Math.max(existingBytes, expectedTotal);
+            item.totalBytes = finalizedTotal;
             item.downloadedBytes = existingBytes;
             item.progressPercent = 100;
             item.speedBps = 0;
             item.updatedAt = nowMs();
             logAttemptEvent("INFO", "HTTP 416 als vollständig behandelt", {
               existingBytes,
-              expectedTotal
+              expectedTotal: finalizedTotal
             });
             return { resumable: true };
           }