analyze performance upgrade

django_project/IoTAnalyzer/db_create.py

@@ -84,7 +84,7 @@ def create_capture(
     filename: str,
     ip_address: str,
 ) -> File:
-    """Create capture metadata, analyze the stored file, and update its status."""
+    """Create capture metadata and hand the analysis to a background worker."""
     firmware_version = _required_text(firmware_version, "Firmware version", 100)
     filename = os.path.basename(_required_text(filename, "Capture filename", 255))
     if os.path.splitext(filename)[1].lower() not in CAPTURE_EXTENSIONS:
@@ -113,10 +113,10 @@ def create_capture(
             raise ValidationError("This capture is already registered for the device.")
         raw_dataset = RawDataset.objects.create(file=file_entry)
 
-    from .analyze.security_analysis import analyze_capture
+    from .analyze.security_analysis import start_capture_analysis
 
-    result = analyze_capture(filename, file_entry.id, raw_dataset.id)
-    file_entry.status = "analyzed" if result is not None else "analysis_failed"
-    file_entry.save(update_fields=["status"])
-    logger.info("Capture %s completed with status %s", file_entry.id, file_entry.status)
+    # The analysis reads the whole capture with tshark and can run for many
+    # minutes, so it must not block the upload response.
+    start_capture_analysis(file_entry.id, filename, raw_dataset.id)
+    logger.info("Capture %s registered, analysis queued", file_entry.id)
     return file_entry