From c55203474bc8dd513ef06582e75e744ceaaf6c21 Mon Sep 17 00:00:00 2001
From: Variet Agent <variet@variet.net>
Date: Wed, 18 Mar 2026 21:14:38 +0900
Subject: [PATCH] =?UTF-8?q?fix:=20NC=20=EA=B2=80=EC=83=89=20PROPFIND=20?=
 =?UTF-8?q?=ED=8F=B4=EB=B0=B1=20+=20=EC=9E=90=EB=A7=89=20=EC=A4=91?=
 =?UTF-8?q?=EB=B3=B5=20=EC=8A=A4=ED=82=B5?=
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- nc_files.py: WebDAV SEARCH 501 시 PROPFIND depth=99 + 로컬 필터 폴백
- subtitle_downloader.py: download_file에 기존 파일 존재 체크 추가 (이미 있으면 스킵)
---
 tools/nc_files.py            | 17 +++++++++++++++++
 tools/subtitle_downloader.py |  7 +++++++
 2 files changed, 24 insertions(+)

diff --git a/tools/nc_files.py b/tools/nc_files.py
index d71c0b8..03c1398 100644
--- a/tools/nc_files.py
+++ b/tools/nc_files.py
@@ -102,7 +102,24 @@ class NCFilesClient:
         Returns:
             매칭된 NCFile 리스트
         """
+        # 1차: WebDAV SEARCH 시도
         results = await self.nc.webdav_search(query)
+
+        # 2차: SEARCH 실패 시 (501 등) PROPFIND로 전체 목록 → 로컬 필터
+        if not results:
+            logger.info(f"WebDAV SEARCH 미지원, PROPFIND 폴백 사용: '{query}'")
+            try:
+                dav_path = f"files/{self.nc.username}/"
+                all_files = await self.nc.webdav_propfind(dav_path, depth=99)
+                query_lower = query.lower().lstrip(".")
+                results = [
+                    f for f in all_files[1:]  # 첫 번째는 루트
+                    if query_lower in f.get("name", "").lower()
+                    or query_lower in f.get("content_type", "").lower()
+                ]
+            except Exception as e:
+                logger.warning(f"PROPFIND 폴백 실패: {e}")
+
         files = [self._to_ncfile(r) for r in results]
         # 디렉토리보다 파일 우선, 최신순
         files.sort(key=lambda f: (f.is_dir, f.name))
diff --git a/tools/subtitle_downloader.py b/tools/subtitle_downloader.py
index e39aa35..385978d 100644
--- a/tools/subtitle_downloader.py
+++ b/tools/subtitle_downloader.py
@@ -252,6 +252,13 @@ class SubtitleDownloader:
         target_dir = Path(save_dir) if save_dir else self.download_dir
         target_dir.mkdir(parents=True, exist_ok=True)
 
+        # 이미 같은 파일명이 존재하면 스킵
+        existing = target_dir / sub.filename
+        if existing.exists() and existing.stat().st_size > 0:
+            logger.info(f"자막 이미 존재, 스킵: {existing}")
+            sub.local_path = str(existing)
+            return str(existing)
+
         headers = {
             "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
         }