Fix Bilibili 412 error: inject dm_img risk-control params into yt-dlp wbi/playurl requests

BillNote_frontend/src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "../node_modules/@tauri-apps/cli/config.schema.json",
   "productName": "BiliNote",
-  "version": "2.4.2",
+  "version": "2.4.0",
   "identifier": "com.jefferyhuang.bilinote",
   "build": {
     "frontendDist": "../dist",

CHANGELOG.md

@@ -2,23 +2,6 @@
 
 本项目所有重要变更记录于此。格式参考 [Keep a Changelog](https://keepachangelog.com/zh-CN/1.1.0/)，遵循 [语义化版本](https://semver.org/lang/zh-CN/)。
 
-## [2.4.2] - 2026-06-17
-
-### Fixed
-
-- **Docker 部署打开显示 nginx 欢迎页**：`nginx/default.conf` 被 docker-compose（多容器）与 `Dockerfile.complete`（单镜像）共用，但两种模式对 `location /` 的需求相反（多容器需反代独立的 frontend 容器，单镜像需直接服务本地静态文件），导致其中一种部署方式总会回退到 nginx 默认欢迎页。现拆分为两份配置：`nginx/default.conf`（compose，反代 frontend 容器）与新增的 `nginx/standalone.conf`（单镜像，静态前端 + 本地 backend 代理）；`Dockerfile.complete` 改用后者并删除 Debian 默认站点，两种部署方式均恢复正常。
-
-## [2.4.1] - 2026-06-17
-
-### Added
-
-- **YouTube Shorts 链接支持**：后端 URL 校验与 video id 提取支持 `youtube.com/shorts/<id>` 形态，Shorts 链接可正常提交生成笔记（#381）。
-
-### Fixed
-
-- **B 站 412（wbi/playurl 风控）**：B 站 `x/player/wbi/playurl` 网关新增 `dm_img_list`/`dm_img_str`/`dm_cover_img_str`/`dm_img_inter` + `web_location` 风控校验，缺失即返回 HTTP 412。多数视频网页内嵌 playinfo、yt-dlp 不调此 API；而网页不内嵌 playinfo、必须走 API 的视频（如 BV1X9L16oEgB）会撞上风控，刷新 cookie 无效、yt-dlp（含最新版）上游尚未适配。现于 wbi 签名前注入哑值 dm_img 风控参数（形态对齐 yt-dlp 自身 arc/search 用法）恢复 200（#410）。
-- **B 站分 P 视频字幕取错集**：分 P 视频提交 `?p=N` 时，字幕优先链路未透传 p 参数，始终取第 1 集 cid，导致笔记内容与实际下载的 p=N 音频不一致。现从 `data.pages[N-1]` 取对应分 P 的 cid（#409）。
-
 ## [2.4.0] - 2026-06-07
 
 ### Added

Dockerfile.complete

@@ -90,11 +90,9 @@ WORKDIR /app/backend
 # 复制前端静态文件到 nginx
 COPY --from=frontend-builder /tmp/frontend/dist /usr/share/nginx/html
 
-# 配置 nginx（单镜像版：前端静态文件 + 本地 backend 代理，见 nginx/standalone.conf）
+# 配置 nginx
 RUN rm -rf /etc/nginx/conf.d/default.conf
-# 删除默认 nginx site，防止 default_server 劫持 80 端口
-RUN rm -f /etc/nginx/sites-enabled/default
-COPY ./nginx/standalone.conf /etc/nginx/conf.d/default.conf
+COPY ./nginx/default.conf /etc/nginx/conf.d/default.conf
 
 # 创建 supervisor 配置
 # 关键点：supervisord 默认 *不* 把自己的环境变量传给子进程。
@@ -129,7 +127,9 @@ priority=20
 environment=BACKEND_PORT="%(ENV_BACKEND_PORT)s",BACKEND_HOST="%(ENV_BACKEND_HOST)s",TRANSCRIBER_TYPE="%(ENV_TRANSCRIBER_TYPE)s",WHISPER_MODEL_SIZE="%(ENV_WHISPER_MODEL_SIZE)s",FFMPEG_BIN_PATH="%(ENV_FFMPEG_BIN_PATH)s",HF_ENDPOINT="%(ENV_HF_ENDPOINT)s",STATIC="%(ENV_STATIC)s",OUT_DIR="%(ENV_OUT_DIR)s",DATA_DIR="%(ENV_DATA_DIR)s",NOTE_OUTPUT_DIR="%(ENV_NOTE_OUTPUT_DIR)s",DATABASE_URL="%(ENV_DATABASE_URL)s",IMAGE_BASE_URL="%(ENV_IMAGE_BASE_URL)s",ENV="%(ENV_ENV)s",GROQ_TRANSCRIBER_MODEL="%(ENV_GROQ_TRANSCRIBER_MODEL)s"
 EOF
 
-# nginx/standalone.conf 已直接写好本地 backend(127.0.0.1:8483)与前端静态服务，无需再 sed 改写。
+# 修改 nginx 配置以使用本地 backend
+RUN sed -i 's/proxy_pass http:\/\/backend:8483/proxy_pass http:\/\/127.0.0.1:8483/g' /etc/nginx/conf.d/default.conf && \
+    sed -i 's/proxy_pass http:\/\/frontend:80/proxy_pass http:\/\/127.0.0.1:8080/g' /etc/nginx/conf.d/default.conf
 
 # 启动 supervisor
 # 推荐启动方式（覆盖默认 env）：

README.md

@@ -3,7 +3,7 @@
     <p align="center">
   <img src="./doc/icon.svg" alt="BiliNote Banner" width="50" height="50"  />
 </p>
-<h1 align="center" > BiliNote v2.4.2</h1>
+<h1 align="center" > BiliNote v2.4.0</h1>
 </div>
 
 <p align="center"><i>AI 视频笔记生成工具 让 AI 为你的视频做笔记</i></p>

backend/app/downloaders/bilibili_dm_patch.py

@@ -1,71 +0,0 @@
-"""
-Patch yt-dlp's Bilibili extractor to inject the dm_img_* / web_location
-risk-control parameters required by Bilibili's wbi/playurl gateway.
-
-Background
-----------
-Around 2026-06 Bilibili's ``x/player/wbi/playurl`` gateway began rejecting
-requests that omit the browser fingerprint params
-``dm_img_list`` / ``dm_img_str`` / ``dm_cover_img_str`` / ``dm_img_inter`` +
-``web_location`` with **HTTP 412**. Current yt-dlp (incl. the latest release)
-does not send these for the playurl endpoint, so any video whose web page does
-*not* inline ``playinfo`` — forcing yt-dlp onto the API path — fails with 412.
-Refreshing cookies does not help; the params themselves are missing.
-
-We inject dummy-but-well-formed values *before* wbi signing. The value shapes
-deliberately mirror yt-dlp's own usage of the same fields for the
-``x/space/wbi/arc/search`` endpoint (``BiliBiliSpaceIE``), which is the only
-place upstream currently sends them.
-"""
-import base64
-import logging
-import random
-import string
-
-logger = logging.getLogger(__name__)
-
-
-def build_dm_img_params() -> dict:
-    """Return dummy ``dm_img_*`` / ``web_location`` params the gateway expects."""
-    return {
-        'web_location': 1550101,
-        'dm_img_list': '[]',
-        'dm_img_str': base64.b64encode(
-            ''.join(random.choices(string.printable, k=random.randint(16, 64))).encode()
-        )[:-2].decode(),
-        'dm_cover_img_str': base64.b64encode(
-            ''.join(random.choices(string.printable, k=random.randint(32, 128))).encode()
-        )[:-2].decode(),
-        'dm_img_inter': '{"ds":[],"wh":[6093,6631,31],"of":[430,760,380]}',
-    }
-
-
-def apply_bilibili_dm_img_patch() -> bool:
-    """
-    Monkey-patch ``BilibiliBaseIE._download_playinfo`` to inject dm_img params.
-
-    Idempotent and defensive: returns ``True`` if the patch is in place (whether
-    applied now or previously), ``False`` if yt-dlp's internals could not be
-    patched (logged, never raised — the caller stays functional).
-    """
-    try:
-        from yt_dlp.extractor.bilibili import BilibiliBaseIE
-    except Exception as e:  # yt-dlp missing or module layout changed upstream
-        logger.warning("Bilibili dm_img patch skipped, cannot import extractor: %s", e)
-        return False
-
-    original = BilibiliBaseIE._download_playinfo
-    if getattr(original, '_bili_dm_patched', False):
-        return True
-
-    def _patched_download_playinfo(self, bvid, cid, headers=None, query=None):
-        # dm_* are merged into the query that the original method signs via
-        # _sign_wbi; caller-supplied query params (e.g. try_look/qn) take
-        # precedence over the injected dummies.
-        merged_query = {**build_dm_img_params(), **(query or {})}
-        return original(self, bvid, cid, headers=headers, query=merged_query)
-
-    _patched_download_playinfo._bili_dm_patched = True
-    BilibiliBaseIE._download_playinfo = _patched_download_playinfo
-    logger.info("Applied Bilibili wbi/playurl dm_img patch to yt-dlp BilibiliBaseIE")
-    return True

backend/app/downloaders/bilibili_downloader.py

@@ -1,6 +1,9 @@
+import base64
 import os
 import json
 import logging
+import random
+import string
 import tempfile
 from abc import ABC
 from typing import Union, Optional, List
@@ -8,7 +11,6 @@ from typing import Union, Optional, List
 import yt_dlp
 
 from app.downloaders.base import Downloader, DownloadQuality, QUALITY_MAP
-from app.downloaders.bilibili_dm_patch import apply_bilibili_dm_img_patch
 from app.downloaders.bilibili_subtitle import BilibiliSubtitleFetcher
 from app.models.notes_model import AudioDownloadResult
 from app.models.transcriber_model import TranscriptResult, TranscriptSegment
@@ -18,10 +20,53 @@ from app.services.cookie_manager import CookieConfigManager
 
 logger = logging.getLogger(__name__)
 
-# Inject the dm_img_* / web_location risk-control params Bilibili's wbi/playurl
-# gateway now requires; without them the API path returns HTTP 412. See
-# app/downloaders/bilibili_dm_patch.py for details.
-apply_bilibili_dm_img_patch()
+
+def _patch_bilibili_extractor():
+    """
+    Monkey-patch yt-dlp's BilibiliBaseIE._download_playinfo to inject the
+    dm_img_* / web_location risk-control parameters that Bilibili's
+    wbi/playurl gateway started requiring (returns HTTP 412 without them).
+
+    The parameter format (string.printable source + [:-2] base64 truncation)
+    mirrors yt-dlp's own implementation for the same fields in the channel
+    search endpoint (yt_dlp/extractor/bilibili.py, BiliBiliSpaceIE).
+    """
+    try:
+        from yt_dlp.extractor.bilibili import BilibiliBaseIE
+
+        # Guard: skip if already patched (e.g. module reloaded in tests)
+        if getattr(BilibiliBaseIE._download_playinfo, '_bili_dm_patched', False):
+            return
+
+        _original_download_playinfo = BilibiliBaseIE._download_playinfo
+
+        def _patched_download_playinfo(self, bvid, cid, headers=None, query=None):
+            # Inject dummy risk-control fingerprints expected by Bilibili's gateway.
+            # The [:-2] truncation and string.printable source intentionally match
+            # yt-dlp's own pattern used for the x/space/wbi/arc/search endpoint.
+            extra = {
+                'web_location': 1550101,
+                'dm_img_list': '[]',
+                'dm_img_str': base64.b64encode(
+                    ''.join(random.choices(string.printable, k=random.randint(16, 64))).encode()
+                )[:-2].decode(),
+                'dm_cover_img_str': base64.b64encode(
+                    ''.join(random.choices(string.printable, k=random.randint(32, 128))).encode()
+                )[:-2].decode(),
+                'dm_img_inter': '{"ds":[],"wh":[6093,6631,31],"of":[430,760,380]}',
+            }
+            # Caller-supplied query params take precedence over the dummy values
+            merged_query = {**extra, **(query or {})}
+            return _original_download_playinfo(self, bvid, cid, headers=headers, query=merged_query)
+
+        _patched_download_playinfo._bili_dm_patched = True
+        BilibiliBaseIE._download_playinfo = _patched_download_playinfo
+        logger.info("Applied Bilibili wbi/playurl dm_img patch to yt-dlp BilibiliBaseIE")
+    except Exception as e:
+        logger.warning("Failed to apply Bilibili dm_img patch: %s", e)
+
+
+_patch_bilibili_extractor()
 
 
 class BilibiliDownloader(Downloader, ABC):

backend/app/downloaders/bilibili_subtitle.py

@@ -3,13 +3,12 @@
 
 流程：
 1. 从 URL 提 BV id（已有 utils.url_parser.extract_video_id）
-2. 从 URL 提 p 参数（分 P 序号，已有 utils.url_parser.extract_bilibili_p_number）
-3. GET /x/web-interface/view?bvid=BVxxx&p=N → 拿第 N 集的 cid
-4. GET /x/player/wbi/v2?bvid=...&cid=... → 返回 data.subtitle.subtitles[]
+2. GET /x/web-interface/view?bvid=BVxxx → 拿 cid
+3. GET /x/player/wbi/v2?bvid=...&cid=... → 返回 data.subtitle.subtitles[]
    每条带 subtitle_url（B 站后端已经签好 auth_key 的完整地址）
-5. 按优先级（人工 zh-CN > AI zh-CN > 任意 zh > 任意非空）选一条
-6. fetch subtitle_url → JSON {body:[{from,to,content,...}]}
-7. 解析为 TranscriptResult
+4. 按优先级（人工 zh-CN > AI zh-CN > 任意 zh > 任意非空）选一条
+5. fetch subtitle_url → JSON {body:[{from,to,content,...}]}
+6. 解析为 TranscriptResult
 
 AI 字幕需要登录态 cookie（SESSDATA）；通过 CookieConfigManager 注入。
 """
@@ -21,7 +20,7 @@ import requests
 from app.models.transcriber_model import TranscriptResult, TranscriptSegment
 from app.services.cookie_manager import CookieConfigManager
 from app.utils.logger import get_logger
-from app.utils.url_parser import extract_video_id, extract_bilibili_p_number, resolve_bilibili_short_url
+from app.utils.url_parser import extract_video_id
 
 logger = get_logger(__name__)
 
@@ -46,13 +45,10 @@ class BilibiliSubtitleFetcher:
             h["Cookie"] = self._cookie
         return h
 
-    def _get_cid(self, bvid: str, p: Optional[int] = None) -> Optional[int]:
+    def _get_cid(self, bvid: str) -> Optional[int]:
         url = "https://api.bilibili.com/x/web-interface/view"
-        params = {"bvid": bvid}
-        if p is not None and p >= 1:
-            params["p"] = p
         try:
-            resp = requests.get(url, params=params, headers=self._headers(), timeout=10)
+            resp = requests.get(url, params={"bvid": bvid}, headers=self._headers(), timeout=10)
             data = resp.json()
         except Exception as e:
             logger.warning(f"获取 cid 失败: {e}")
@@ -60,19 +56,6 @@ class BilibiliSubtitleFetcher:
         if data.get("code") != 0:
             logger.warning(f"view API 返回错误: code={data.get('code')}, msg={data.get('message')}")
             return None
-        # 分 P 视频：data.pages[N-1] 对应第 N 集
-        pages = data.get("data", {}).get("pages", [])
-        if pages:
-            if p is not None and 1 <= p <= len(pages):
-                cid = pages[p - 1].get("cid")
-                logger.info(f"分 P 视频: bvid={bvid} p={p} 共 {len(pages)} 集, 取第 {p} 集 cid={cid}")
-                return int(cid) if cid else None
-            else:
-                # 没有 p 参数或 p 超出范围，取第 1 集
-                cid = pages[0].get("cid")
-                logger.info(f"非分 P 或 p 无效: bvid={bvid} 取第 1 集 cid={cid}")
-                return int(cid) if cid else None
-        # 单集视频
         cid = data.get("data", {}).get("cid")
         return int(cid) if cid else None
 
@@ -126,21 +109,14 @@ class BilibiliSubtitleFetcher:
             return None
 
     def fetch_subtitles(self, video_url: str) -> Optional[TranscriptResult]:
-        # 统一 resolve 短链，避免 extract_video_id 和 extract_bilibili_p_number 各 resolve 一次
-        if "b23.tv" in video_url:
-            video_url = resolve_bilibili_short_url(video_url) or video_url
-
         bvid = extract_video_id(video_url, "bilibili")
         if not bvid:
             logger.info("无法从 URL 提取 BV id")
             return None
 
-        # 提取分 P 序号
-        p = extract_bilibili_p_number(video_url)
-
-        cid = self._get_cid(bvid, p)
+        cid = self._get_cid(bvid)
         if not cid:
-            logger.info(f"{bvid} (p={p}) 没有取到 cid")
+            logger.info(f"{bvid} 没有取到 cid")
             return None
 
         subtitles = self._list_subtitles(bvid, cid)
@@ -173,7 +149,7 @@ class BilibiliSubtitleFetcher:
             return None
 
         full_text = " ".join(s.text for s in segments)
-        logger.info(f"B站直拉字幕成功: {bvid} p={p} lan={lan} 共 {len(segments)} 段")
+        logger.info(f"B站直拉字幕成功: {bvid} lan={lan} 共 {len(segments)} 段")
         return TranscriptResult(
             language=lan,
             full_text=full_text,
@@ -182,7 +158,6 @@ class BilibiliSubtitleFetcher:
                 "source": "bilibili_player_api",
                 "bvid": bvid,
                 "cid": cid,
-                "p": p,
                 "lan": lan,
                 "ai_type": track.get("ai_type"),
             },

backend/app/utils/url_parser.py

@@ -23,8 +23,8 @@ def extract_video_id(url: str, platform: str) -> Optional[str]:
         return f"BV{match.group(1)}" if match else None
 
     elif platform == "youtube":
-        # 匹配 v=xxxxx、youtu.be/xxxxx 或 shorts/xxxxx，ID 长度通常为 11
-        match = re.search(r"(?:v=|youtu\.be/|shorts/)([0-9A-Za-z_-]{11})", url)
+        # 匹配 v=xxxxx 或 youtu.be/xxxxx，ID 长度通常为 11
+        match = re.search(r"(?:v=|youtu\.be/)([0-9A-Za-z_-]{11})", url)
         return match.group(1) if match else None
 
     elif platform == "douyin":
@@ -48,36 +48,3 @@ def resolve_bilibili_short_url(short_url: str) -> Optional[str]:
     except requests.RequestException as e:
         print(f"Error resolving short URL: {e}")
         return None
-
-
-def extract_bilibili_p_number(url: str) -> Optional[int]:
-    """
-    从 B 站分 P 视频 URL 中提取 p 参数（分 P 序号）。
-
-    支持格式：
-      - https://www.bilibili.com/video/BVxxx/?p=36
-      - https://www.bilibili.com/video/BVxxx?p=5
-      - https://b23.tv/xxxxx?p=10
-      - https://www.bilibili.com/video/BVxxx/pN (尾缀形式)
-
-    :param url: B 站视频链接
-    :return: 分 P 序号（从 1 开始），非分 P 视频返回 None
-    """
-    if "b23.tv" in url:
-        url = resolve_bilibili_short_url(url) or url
-
-    # 匹配 ?p=NNN 或 &p=NNN
-    match = re.search(r'[?&]p=(\d+)', url)
-    if match:
-        p = int(match.group(1))
-        if p >= 1:
-            return p
-
-    # 匹配 /pN 尾缀形式（较少见）
-    match = re.search(r'/p(\d+)(?:/?$|\?|&)', url)
-    if match:
-        p_val = int(match.group(1))
-        if p_val >= 1:
-            return p_val
-
-    return None

backend/app/validators/video_url_validator.py

@@ -4,7 +4,7 @@ from urllib.parse import urlparse
 
 SUPPORTED_PLATFORMS = {
     "bilibili": r"(https?://)?(www\.)?bilibili\.com/video/[a-zA-Z0-9]+",
-    "youtube": r"(https?://)?(www\.)?(youtube\.com/(watch\?v=|shorts/)|youtu\.be/)[\w\-]+",
+    "youtube": r"(https?://)?(www\.)?(youtube\.com/watch\?v=|youtu\.be/)[\w\-]+",
     "douyin": "douyin",
     "kuaishou": "kuaishou"
 }

backend/tests/test_bilibili_dm_patch.py

@@ -1,94 +0,0 @@
-"""
-TDD coverage for the Bilibili wbi/playurl dm_img risk-control patch.
-
-Background: around 2026-06, Bilibili's `x/player/wbi/playurl` gateway began
-rejecting requests that omit the browser fingerprint params
-(dm_img_list / dm_img_str / dm_cover_img_str / dm_img_inter + web_location)
-with HTTP 412. yt-dlp (incl. latest) does not yet send these for playurl, so
-videos whose web page does not inline playinfo (forcing the API call) fail.
-
-These tests verify our yt-dlp monkey-patch injects those params *before* wbi
-signing, and that caller-supplied query params still win.
-"""
-import importlib.util
-import pathlib
-import unittest
-
-ROOT = pathlib.Path(__file__).resolve().parents[1]
-MODULE_PATH = ROOT / "app" / "downloaders" / "bilibili_dm_patch.py"
-spec = importlib.util.spec_from_file_location("bilibili_dm_patch", MODULE_PATH)
-if spec is None or spec.loader is None:
-    raise ImportError("bilibili_dm_patch module spec not found")
-bilibili_dm_patch = importlib.util.module_from_spec(spec)
-spec.loader.exec_module(bilibili_dm_patch)
-
-REQUIRED_KEYS = {
-    "web_location",
-    "dm_img_list",
-    "dm_img_str",
-    "dm_cover_img_str",
-    "dm_img_inter",
-}
-
-
-class BuildDmImgParamsTest(unittest.TestCase):
-    def test_contains_all_required_risk_control_keys(self):
-        params = bilibili_dm_patch.build_dm_img_params()
-        self.assertTrue(REQUIRED_KEYS.issubset(params.keys()))
-
-    def test_web_location_is_expected_sentinel(self):
-        self.assertEqual(bilibili_dm_patch.build_dm_img_params()["web_location"], 1550101)
-
-
-class ApplyPatchTest(unittest.TestCase):
-    def setUp(self):
-        try:
-            import yt_dlp.extractor.bilibili  # noqa: F401
-        except Exception as exc:  # pragma: no cover - env without yt-dlp
-            self.skipTest(f"yt-dlp not importable: {exc}")
-
-    def test_patch_is_idempotent(self):
-        from yt_dlp.extractor.bilibili import BilibiliBaseIE
-
-        self.assertTrue(bilibili_dm_patch.apply_bilibili_dm_img_patch())
-        first = BilibiliBaseIE._download_playinfo
-        self.assertTrue(bilibili_dm_patch.apply_bilibili_dm_img_patch())
-        self.assertIs(BilibiliBaseIE._download_playinfo, first)
-
-    def test_dm_params_reach_wbi_signing_with_caller_query_preserved(self):
-        from yt_dlp import YoutubeDL
-        from yt_dlp.extractor.bilibili import BilibiliBaseIE
-
-        bilibili_dm_patch.apply_bilibili_dm_img_patch()
-
-        captured = {}
-
-        def fake_sign_wbi(params, video_id):
-            # Capture the exact params handed to wbi signing (just before the
-            # HTTP request). dm_* must already be present here, pre-signature.
-            captured.update(params)
-            return params
-
-        def fake_download_json(url, video_id, **kwargs):
-            # Avoid any network; the real playurl call would 412 without dm_*.
-            return {"data": {"ok": True}}
-
-        ie = BilibiliBaseIE(YoutubeDL({"quiet": True}))
-        ie._sign_wbi = fake_sign_wbi
-        ie._download_json = fake_download_json
-
-        ie._download_playinfo("BV1X9L16oEgB", 4242, headers={}, query={"qn": 64})
-
-        self.assertTrue(
-            REQUIRED_KEYS.issubset(captured.keys()),
-            f"missing dm_* keys, got: {sorted(captured)}",
-        )
-        self.assertEqual(captured["web_location"], 1550101)
-        # caller-supplied query must survive the merge
-        self.assertEqual(captured["qn"], 64)
-        # the original method still builds its base params
-        self.assertEqual(captured["bvid"], "BV1X9L16oEgB")
-
-
-if __name__ == "__main__":
-    unittest.main()

backend/tests/test_video_url_support.py

@@ -1,50 +0,0 @@
-import importlib.util
-import pathlib
-import unittest
-
-
-ROOT = pathlib.Path(__file__).resolve().parents[1]
-
-
-def _load_module(name, relative_path):
-    module_path = ROOT / relative_path
-    spec = importlib.util.spec_from_file_location(name, module_path)
-    if spec is None or spec.loader is None:
-        raise ImportError(f"{name} module spec not found")
-    module = importlib.util.module_from_spec(spec)
-    spec.loader.exec_module(module)
-    return module
-
-
-url_parser = _load_module("url_parser", pathlib.Path("app") / "utils" / "url_parser.py")
-video_url_validator = _load_module(
-    "video_url_validator",
-    pathlib.Path("app") / "validators" / "video_url_validator.py",
-)
-
-
-class TestVideoUrlSupport(unittest.TestCase):
-    def test_extract_youtube_video_id_from_supported_url_shapes(self):
-        expected_id = "dQw4w9WgXcQ"
-
-        cases = [
-            f"https://www.youtube.com/watch?v={expected_id}",
-            f"https://youtu.be/{expected_id}",
-            f"https://www.youtube.com/shorts/{expected_id}",
-        ]
-
-        for url in cases:
-            with self.subTest(url=url):
-                self.assertEqual(
-                    url_parser.extract_video_id(url, "youtube"),
-                    expected_id,
-                )
-
-    def test_accepts_youtube_shorts_url(self):
-        url = "https://www.youtube.com/shorts/dQw4w9WgXcQ"
-
-        self.assertTrue(video_url_validator.is_supported_video_url(url))
-
-
-if __name__ == "__main__":
-    unittest.main()

nginx/default.conf

@@ -2,18 +2,19 @@ server {
   listen 80;
   client_max_body_size 10G;
 
+  # gzip 压缩
   gzip on;
   gzip_vary on;
   gzip_min_length 1024;
   gzip_proxied any;
   gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
 
-  # 多容器(docker-compose)部署：前端在独立的 frontend 容器，代理过去。
-  # 单镜像(Dockerfile.complete)部署请勿用本文件，改用 nginx/standalone.conf。
+  # 所有非 /api 请求全部代理给 frontend 容器
   location / {
     proxy_pass http://frontend:80;
   }
 
+  # 所有 /api 请求代理给 backend 容器
   location /api/ {
     proxy_pass http://backend:8483;
     proxy_set_header Host $host;

nginx/standalone.conf

@@ -1,41 +0,0 @@
-# 单镜像（Dockerfile.complete / 一体化部署）专用 nginx 配置。
-#
-# 与 nginx/default.conf（docker-compose 多容器版）的关键区别：
-#   - 前端不再由独立的 frontend 容器提供，构建产物已直接 COPY 到本镜像的
-#     /usr/share/nginx/html，所以 location / 走【静态文件】而非反代 frontend；
-#   - backend 与 nginx 同处一个容器，所以 /api、/static 代理到 127.0.0.1:8483。
-#
-# 注意：请勿把本文件的 location / 改成代理 frontend，否则单镜像里没有 frontend
-# 服务，会回退到 nginx 默认欢迎页。多容器（compose）请改 nginx/default.conf。
-server {
-  listen 80;
-  client_max_body_size 10G;
-
-  gzip on;
-  gzip_vary on;
-  gzip_min_length 1024;
-  gzip_proxied any;
-  gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
-
-  # 前端静态文件由本容器直接服务（构建产物已 COPY 到此目录）
-  location / {
-    root /usr/share/nginx/html;
-    index index.html;
-    try_files $uri $uri/ /index.html;
-  }
-
-  # backend 与 nginx 同容器，代理到本地
-  location /api/ {
-    proxy_pass http://127.0.0.1:8483;
-    proxy_set_header Host $host;
-    proxy_set_header X-Real-IP $remote_addr;
-  }
-
-  location /static/ {
-    proxy_pass http://127.0.0.1:8483/static/;
-    proxy_set_header Host $host;
-    proxy_set_header X-Real-IP $remote_addr;
-    expires 7d;
-    add_header Cache-Control "public, immutable";
-  }
-}