fix: decode FKTV bnc covers

py/tests/test_凡客TV.py

@@ -1,8 +1,12 @@
 import unittest
+from base64 import b64encode
 from importlib.machinery import SourceFileLoader
 from pathlib import Path
 from unittest.mock import patch
 
+from Cryptodome.Cipher import AES
+from Cryptodome.Util.Padding import pad
+
 
 ROOT = Path(__file__).resolve().parents[1]
 MODULE = SourceFileLoader("fktv_spider", str(ROOT / "凡客TV.py")).load_module()
@@ -102,6 +106,49 @@ class TestFKTVSpider(unittest.TestCase):
         self.assertEqual(result["page"], 3)
         self.assertEqual(result["list"][0]["vod_id"], "xyz789")
 
+    @patch.object(Spider, "_request_html")
+    def test_category_content_uses_img_src_when_data_src_missing(self, mock_request_html):
+        mock_request_html.return_value = """
+        <div class="card-wrap">
+          <div class="meta-wrap">
+            <a class="normal-title" href="/movie/detail/src001" title="封面走 src">封面走 src</a>
+            <img class="lazy-load" src="/poster-src.jpg" />
+            <span class="tag">电影</span>
+          </div>
+        </div>
+        """
+        result = self.spider.categoryContent("1", "1", False, {})
+        self.assertEqual(result["list"][0]["vod_pic"], "https://fktv.me/poster-src.jpg")
+
+    @patch.object(Spider, "fetch")
+    @patch.object(Spider, "_request_html")
+    def test_category_content_decodes_bnc_cover_to_data_url(self, mock_request_html, mock_fetch):
+        mock_request_html.return_value = """
+        <div class="card-wrap">
+          <div class="meta-wrap">
+            <a class="normal-title" href="/movie/detail/bnc001" title="加密封面">加密封面</a>
+            <div class="lazy-load" data-src="https://img.example/cover.bnc"></div>
+            <span class="tag">电影</span>
+          </div>
+        </div>
+        """
+        png_bytes = (
+            b"\x89PNG\r\n\x1a\n"
+            b"\x00\x00\x00\rIHDR"
+            b"\x00\x00\x00\x01\x00\x00\x00\x01"
+            b"\x08\x06\x00\x00\x00"
+        )
+        key = b"525202f9149e061d"
+        encrypted = AES.new(key, AES.MODE_ECB).encrypt(pad(png_bytes, AES.block_size))
+        mock_fetch.return_value.status_code = 200
+        mock_fetch.return_value.content = encrypted
+
+        result = self.spider.categoryContent("1", "1", False, {})
+
+        expected_prefix = "data:image/png;base64,"
+        expected_body = b64encode(png_bytes).decode("ascii")
+        self.assertEqual(result["list"][0]["vod_pic"], expected_prefix + expected_body)
+
     @patch.object(Spider, "_request_html")
     def test_detail_content_extracts_state_and_builds_multiline_playlist(self, mock_request_html):
         mock_request_html.return_value = """