only audio for recent 10 minute log

analytics.py

@@ -249,20 +249,33 @@ def return_folder_yesterday():
 
 
 def return_file_access():
-    """Return recent file access logs from memory (the last 10 minutes)."""
+    """Return recent audio file access logs from memory (the last 10 minutes)."""
     global file_access_temp
-    if file_access_temp:
-        # Create a timezone-aware cutoff time
-        cutoff_time = datetime.now(timezone.utc).astimezone() - timedelta(minutes=10)
-        # Only keep entries with timestamps greater than or equal to cutoff_time
-        file_access_temp[:] = [
-            entry for entry in file_access_temp
-            if datetime.fromisoformat(entry[0]) >= cutoff_time
-        ]
-        return file_access_temp
-    else:
+
+    def is_audio(entry):
+        """Check whether a log entry references an audio file."""
+        mime_val = (entry[3] or "").lower()
+        if mime_val.startswith("audio/"):
+            return True
+        path_val = (entry[1] or "").lower()
+        return path_val.endswith((
+            ".mp3", ".wav", ".flac", ".m4a", ".aac",
+            ".ogg", ".wma", ".aiff", ".alac", ".opus"
+        ))
+
+    if not file_access_temp:
         return []
 
+    # Create a timezone-aware cutoff time
+    cutoff_time = datetime.now(timezone.utc).astimezone() - timedelta(minutes=10)
+    # Only keep entries with timestamps greater than or equal to cutoff_time
+    file_access_temp[:] = [
+        entry for entry in file_access_temp
+        if datetime.fromisoformat(entry[0]) >= cutoff_time
+    ]
+    # Only expose audio file accesses to the UI
+    return [entry for entry in file_access_temp if is_audio(entry)]
+
 
 def return_file_access_with_geo():
     """Return recent file access logs with geographic coordinates from the database."""

app.py

@@ -799,6 +799,16 @@ def serve_file(subpath):
     else:
         cache = cache_other
 
+    # Plain HEAD requests (without X-Cache-Request) should not populate the cache.
+    # They are just probes and would otherwise turn the first real GET into a “cached hit”.
+    if request.method == 'HEAD' and not is_cache_request:
+        response = make_response('', 200)
+        response.headers['Content-Type'] = mime
+        response.headers['Content-Length'] = str(filesize)
+        response.headers['Accept-Ranges'] = 'bytes'
+        response.headers['Cache-Control'] = 'public, max-age=86400'
+        return response
+
     # 4) Image and thumbnail handling first
     if mime.startswith('image/'):
         small = request.args.get('thumbnail') == 'true'

templates/connections.html

@@ -101,7 +101,8 @@
 {% block content %}
   <div class="page-content">
     <div class="section-header">
-      <h2 style="margin: 0;">Verbindungen der letzten 10 Minuten</h2>
+      <h2 style="margin: 0;">Verbindungen der letzten 10 Minuten (nur Audio)</h2>
+      <p class="text-muted" style="margin: 4px 0 0 0;">Diese Ansicht listet ausschließlich Zugriffe auf Audio-Dateien.</p>
       <div class="stats">
         <div class="stat-item">
           <div class="stat-label">Last Connection</div>