fix(youtube): 支持 Shorts 链接

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 或 youtu.be/xxxxx，ID 长度通常为 11
-        match = re.search(r"(?:v=|youtu\.be/)([0-9A-Za-z_-]{11})", url)
+        # 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)
         return match.group(1) if match else None
 
     elif platform == "douyin":

backend/app/validators/video_url_validator.py

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

backend/tests/test_video_url_support.py

@@ -0,0 +1,50 @@
+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()