update cdn checker

receiver/challenges/CDN.py

@@ -225,16 +225,22 @@ class CDN(Challenge):
             self.logger.error(f"    ✗ View post failed: {e}")
             return False
 
-        # [9/9] Metadata must be real ExifTool output (no fallbacks)
-        self.logger.info("[9/9] Verifying metadata via /post/<id> (ExifTool) ...")
+        # [9/9] Metadata must appear somewhere in the post HTML (no fallback)
+        self.logger.info("[9/9] Verifying metadata presence (File Name / Date Created) ...")
         try:
             mr = s.get(base_url + f"/post/{created_post_id}", timeout=10)
             assert mr.status_code == 200, f"Meta HTTP {mr.status_code}"
-            meta = (mr.text or "").strip()
-            assert meta, "Empty metadata"
-            assert "no-metadata" not in meta and "exif_err:" not in meta, "App fallback metadata detected"
-            assert all(k in meta for k in self._exif_must_have), "Metadata is not ExifTool output"
-            self.logger.info("    ✓ Metadata present and produced by ExifTool")
+            html = (mr.text or "")
+            assert html.strip(), "Empty metadata HTML"
+
+            # Reject app fallbacks
+            assert "no-metadata" not in html and "exif_err:" not in html, "App fallback metadata detected"
+
+            # Required keys appear anywhere in the HTML
+            assert "File Name:" in html, "Missing 'File Name:' in post HTML"
+            assert "Date Created:" in html, "Missing 'Date Created:' in post HTML"
+
+            self.logger.info("    ✓ Required metadata keys found in page HTML")
         except Exception as e:
             self.logger.error(f"    ✗ Metadata verification failed: {e}")
             return False