fix(extraction): classify RAR directories without losing collision safety

Use WinRAR's directory-attribute listing as a counted type source so bare folder entries remain valid while file-directory aliases are still rejected.

Emit only removed for successfully deleted JVM partial outputs so asynchronous consumers preserve the original archive error instead of reporting a stale missing file.

resources/extractor-jvm/src/com/sucukdeluxe/extractor/JBindExtractorMain.java

@@ -375,10 +375,11 @@ public final class JBindExtractorMain {
                     throw error;
                 } finally {
                     if (!extractionSuccess && output.exists()) {
+                        if (output.delete()) {
+                            emitOutput(request.archiveFile, entryName, output, "removed", outputTarget.disposition);
+                        } else {
                             emitOutput(request.archiveFile, entryName, output, "partial", outputTarget.disposition);
                         }
-                    if (!extractionSuccess && output.exists() && output.delete()) {
-                        emitOutput(request.archiveFile, entryName, output, "removed", outputTarget.disposition);
                     }
                 }
             }
@@ -1294,14 +1295,19 @@ public final class JBindExtractorMain {
             closeCurrentStreamOnly();
             if (!currentSuccess[0] && currentOutput[0] != null && currentOutput[0].exists()) {
                 int pos = currentPos[0];
+                if (currentOutput[0].delete()) {
                     if (pos >= 0) {
-                    emitOutput(archiveFile, entryNames.get(pos), currentOutput[0], "partial", dispositions.get(pos));
-                }
-                if (currentOutput[0].delete() && pos >= 0) {
                         emitOutput(archiveFile, entryNames.get(pos), currentOutput[0], "removed", dispositions.get(pos));
                     }
+                } else if (pos >= 0) {
+                    emitOutput(archiveFile, entryNames.get(pos), currentOutput[0], "partial", dispositions.get(pos));
                 }
             }
+            currentOutput[0] = null;
+            currentPos[0] = -1;
+            currentSuccess[0] = false;
+            currentRemaining[0] = 0;
+        }
     }
 
     private static final class WrongPasswordException extends Exception {

src/main/extractor.ts

@@ -2396,17 +2396,17 @@ export function buildExternalExtractArgs(
   return ["x", "-y", "-bb1", "-sccUTF-8", overwrite, pass, archivePath, `-o${targetDir}`];
 }
 
-export function buildExternalListArgs(command: string, archivePath: string, password = ""): string[] {
+export function buildExternalListArgs(command: string, archivePath: string, password = "", directoriesOnly = false): string[] {
   if (isRarNativeCommand(command)) {
     const pass = password ? `-p${password}` : "-p-";
-    return ["lb", pass, "-y", archivePath];
+    return directoriesOnly ? ["lb", "-e+d", pass, "-y", archivePath] : ["lb", pass, "-y", archivePath];
   }
   const pass = password ? `-p${password}` : "-p";
   return ["l", "-slt", "-sccUTF-8", pass, archivePath];
 }
 
-export function parseNativeArchiveEntryList(command: string, output: string): string[] {
+export function parseNativeArchiveEntryList(command: string, output: string, directoryOutput = ""): string[] {
-  return parseNativeArchiveEntryCandidates(command, output).map((entry) => (
+  return parseNativeArchiveEntryCandidates(command, output, directoryOutput).map((entry) => (
     entry.isDirectory && !/[\\/]$/.test(entry.entryPath) ? `${entry.entryPath}/` : entry.entryPath
   ));
 }
@@ -2415,13 +2415,25 @@ type NativeArchiveEntryCandidate = { entryPath: string; isDirectory: boolean };
 
 type NativeEntryPreflightResult = ExtractSpawnResult & { entries: NativeArchiveEntryCandidate[] };
 
-function parseNativeArchiveEntryCandidates(command: string, output: string): NativeArchiveEntryCandidate[] {
+function parseNativeArchiveEntryCandidates(command: string, output: string, directoryOutput = ""): NativeArchiveEntryCandidate[] {
   const lines = String(output || "").split(/\r?\n/);
   if (isRarNativeCommand(command)) {
-    return lines.filter((line) => line.length > 0).map((entryPath) => ({
+    const directoryCounts = new Map<string, number>();
+    for (const entryPath of String(directoryOutput || "").split(/\r?\n/).filter((line) => line.length > 0)) {
+      const key = entryPath.replace(/\\/g, "/").replace(/\/+$/, "").toLocaleLowerCase("en-US");
+      directoryCounts.set(key, (directoryCounts.get(key) || 0) + 1);
+    }
+    return lines.filter((line) => line.length > 0).map((entryPath) => {
+      const key = entryPath.replace(/\\/g, "/").replace(/\/+$/, "").toLocaleLowerCase("en-US");
+      const directoryCount = directoryCounts.get(key) || 0;
+      if (directoryCount > 0) {
+        directoryCounts.set(key, directoryCount - 1);
+      }
+      return {
         entryPath,
-      isDirectory: /[\\/]$/.test(entryPath)
+        isDirectory: /[\\/]$/.test(entryPath) || directoryCount > 0
-    }));
+      };
+    });
   }
   const entries: NativeArchiveEntryCandidate[] = [];
   let inEntries = false;
@@ -2573,8 +2585,21 @@ async function runNativeEntryPreflight(
   if (!result.ok) {
     return { ...result, entries: [] };
   }
+  const directoryChunks: string[] = [];
+  if (isRarNativeCommand(command)) {
+    const directoryResult = await runExtractCommand(
+      command,
+      buildExternalListArgs(command, archivePath, password, true),
+      (chunk) => directoryChunks.push(chunk),
+      signal,
+      timeoutMs
+    );
+    if (!directoryResult.ok) {
+      return { ...directoryResult, entries: [] };
+    }
+  }
   try {
-    const entries = parseNativeArchiveEntryCandidates(command, chunks.join(""));
+    const entries = parseNativeArchiveEntryCandidates(command, chunks.join(""), directoryChunks.join(""));
     if (entries.length === 0) {
       throw new Error("Native Archivliste enthält keine validierbaren Einträge");
     }

tests/extractor-jvm.test.ts

@@ -297,7 +297,7 @@ describe.skipIf(!hasJavaRuntime() || !hasJvmExtractorRuntime())("extractor jvm b
     expect(second).toEqual(expect.objectContaining({ extracted: 1, failed: 0 }));
   }, 10000);
 
-  it.each(["7zjbinding", "zip4j"])("reports %s partial output before removing a failed file", (backend) => {
+  it.each(["7zjbinding", "zip4j"])("reports only removed after deleting a failed %s output", (backend) => {
     const root = fs.mkdtempSync(path.join(os.tmpdir(), `rd-jvm-partial-${backend}-`));
     tempDirs.push(root);
     const targetDir = path.join(root, "out");
@@ -333,9 +333,35 @@ describe.skipIf(!hasJavaRuntime() || !hasJvmExtractorRuntime())("extractor jvm b
       .map((line) => line.split(" ")[2]);
 
     expect(run.status).not.toBe(0);
-    expect(states[0]).toBe("opened");
+    expect(states).toEqual(["opened", "removed"]);
-    expect(states).toContain("partial");
+    expect(fs.existsSync(path.join(targetDir, "episode.bin"))).toBe(false);
-    expect(states[states.length - 1]).toBe("removed");
+  });
+
+  it("preserves the real JVM archive error when a failed output is removed before Node consumes the event", async () => {
+    process.env.RD_EXTRACT_BACKEND = "jvm";
+    const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-jvm-removed-output-error-"));
+    tempDirs.push(root);
+    const packageDir = path.join(root, "pkg");
+    const targetDir = path.join(root, "out");
+    const zipPath = path.join(packageDir, "corrupt.zip");
+    fs.mkdirSync(packageDir, { recursive: true });
+    const zip = new AdmZip();
+    zip.addFile("episode.bin", Buffer.from("payload-".repeat(20_000)));
+    zip.writeZip(zipPath);
+    corruptFirstZipPayload(zipPath);
+
+    const result = await extractPackageArchives({
+      packageDir,
+      targetDir,
+      cleanupMode: "none",
+      conflictMode: "overwrite",
+      removeLinks: false,
+      removeSamples: false
+    });
+
+    expect(result).toEqual(expect.objectContaining({ extracted: 0, failed: 1 }));
+    expect(result.lastError).not.toContain("Gemeldete Extract-Ausgabe existiert nicht");
+    expect(result.lastError).toMatch(/crc|data|checksum|zip|archive/i);
     expect(fs.existsSync(path.join(targetDir, "episode.bin"))).toBe(false);
   });
 

tests/extractor.test.ts

@@ -1930,6 +1930,38 @@ describe("extractor", () => {
       ].join("\n"))).toEqual(["folder/", "folder/episode.mkv"]);
     });
 
+    it("classifies bare RAR directory names through the attribute-filtered directory listing", () => {
+      const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-native-rar-directory-list-"));
+      tempDirs.push(root);
+      const allEntries = [
+        "Doona.S01E02.German.DL.720p.WEB.x264-WvF\\doona.s01e02.german.dl.720p.web.x264-wvf.mkv",
+        "Doona.S01E02.German.DL.720p.WEB.x264-WvF"
+      ].join("\r\n");
+      const directoryEntries = "Doona.S01E02.German.DL.720p.WEB.x264-WvF\r\n";
+
+      expect(buildExternalListArgs("Rar.exe", "archive.rar", "", true)).toEqual([
+        "lb", "-e+d", "-p-", "-y", "archive.rar"
+      ]);
+      const parsed = parseNativeArchiveEntryList("Rar.exe", allEntries, directoryEntries);
+      expect(parsed).toEqual([
+        "Doona.S01E02.German.DL.720p.WEB.x264-WvF\\doona.s01e02.german.dl.720p.web.x264-wvf.mkv",
+        "Doona.S01E02.German.DL.720p.WEB.x264-WvF/"
+      ]);
+      expect(() => validateNativeArchiveEntryCandidates(parsed, root)).not.toThrow();
+      expect(() => validateNativeArchiveEntryCandidates(
+        parseNativeArchiveEntryList("Rar.exe", allEntries),
+        root
+      )).toThrow(/Datei ist Vorfahr/i);
+      expect(() => validateNativeArchiveEntryCandidates(
+        parseNativeArchiveEntryList("Rar.exe", "same\r\nsame\r\n", "same\r\n"),
+        root
+      )).toThrow(/mehrfaches|typwidriges/i);
+      expect(() => validateNativeArchiveEntryCandidates(
+        parseNativeArchiveEntryList("Rar.exe", "same\r\nsame\r\n", "same\r\nsame\r\n"),
+        root
+      )).not.toThrow();
+    });
+
     it("preflights every internal ZIP entry before overwriting an earlier safe target", async () => {
       const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-zip-full-preflight-"));
       tempDirs.push(root);