Hidden archive entries no longer name releases

One poster adds the same 22 GB hidden '.1917-….mkv' decoy to every 7z
upload; the largest-entry rule named 840 releases after it. Entries with
a hidden path part are skipped; release:rename --hidden renames the
existing ones from their stored listing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/services/ArchiveService.ts

@@ -115,9 +115,11 @@ export async function extractEntry(archive: Buffer, entry: RarEntry, maxBytes =
  * `Joker.Folie.a.Deux.2024.2160p….nzb`). Samples are skipped.
  */
 export function releaseNameFromContents(info: Pick<RarInfo, 'entries'>): string | undefined {
-  const entries = info.entries.filter((e) => !e.directory)
-  const tops = new Set(info.entries.map((e) => e.name.split(/[\\/]/)[0]))
-  if (tops.size === 1 && info.entries.some((e) => /[\\/]/.test(e.name))) {
+  // Hidden entries name nothing: one poster adds the same 22 GB ".1917-….mkv" decoy to every upload (LOG.md 2026-10-06 (2)).
+  const listed = info.entries.filter((e) => !isHidden(e.name))
+  const entries = listed.filter((e) => !e.directory)
+  const tops = new Set(listed.map((e) => e.name.split(/[\\/]/)[0]))
+  if (tops.size === 1 && listed.some((e) => /[\\/]/.test(e.name))) {
     const [top] = tops
     if (/[A-Za-z]{2,}.*[._-].*[A-Za-z0-9]{2,}/.test(top) && !looksRandom(top)) return top
   }
@@ -129,6 +131,36 @@ export function releaseNameFromContents(info: Pick<RarInfo, 'entries'>): string
   return candidates[0]?.stem
 }
 
+/** An entry in a hidden directory or a hidden file itself (`.x/…`, `dir/.x`). */
+export function isHidden(name: string): boolean {
+  return name.split(/[\\/]/).some((part) => part.startsWith('.'))
+}
+
+/**
+ * Releases named after a hidden archive entry before those were skipped:
+ * renamed from their stored listing (no downloads). Used by
+ * `release:rename --hidden`.
+ */
+export async function renameHiddenNamed(): Promise<number> {
+  const releases = await db
+    .from('releases')
+    .where('name', 'like', '.%')
+    .whereNot('source', 'spot')
+    .whereNotNull('contents')
+    .select('id', 'name', 'contents')
+  let renamed = 0
+  for (const release of releases) {
+    const entries: any[] = Array.isArray(release.contents) ? release.contents : []
+    const fromHidden = entries.some((e) => isHidden(e.name) && fileStem(String(e.name).split(/[\\/]/).pop() ?? '') === release.name)
+    if (!fromHidden) continue
+    const better = releaseNameFromContents({ entries })
+    if (!better || better === release.name) continue
+    await db.from('releases').where('id', release.id).update({ name: better })
+    renamed++
+  }
+  return renamed
+}
+
 /**
  * Renames random-named releases from their stored archive listing (no
  * downloads). Used by `release:rename`.