Not able to receive the event logs on my terminal

[AchillesTD]

I'm working on a Python script that uses the ONVIF and Zeep libraries to retrieve NVR event logs and display them on my terminal. My goal is to access logs related to alarms such as motion detection, video tampering, scene changes, and video loss.

Currently, I’m able to fetch basic device information like the model, firmware version, system date and time, and RTSP URLs for my streams. I’ve also successfully obtained the event service capabilities, which indicate support for features such as WSSubscriptionPolicy, WSPullPoint, and others.

Here’s the current output for event service capabilities:
--- Event Service Capabilities ---
{
'_value_1': None,
'WSSubscriptionPolicySupport': True,
'WSPullPointSupport': True,
'WSPausableSubscriptionManagerInterfaceSupport': False,
'MaxNotificationProducers': 10,
'MaxPullPoints': 5,
'PersistentNotificationStorage': None,
'_attr_1': {
'PersistenNotificationStorage': 'false'
}
}

What steps should I take to get the event logs displayed on my terminal? Is it possible to retrieve these logs directly from my DAHUA NVR without using additional tools like MQTT?
My NVR model is DHI-NVR5216-16P-I
any help would be appreciated!!

[Itachi-6]

Hello @AchillesTD ,

Were you able to display/download those event messages?

I have the same goal as yours. I want to download those event messages and access them. The reason being the event message contains the metadata of each frame which is important for me to conduct further analysis on top of that metadata. But it seems like impossible to download that events. Any help would be much appreciated!!

[AchillesTD]

Hey @Itachi-6 ,

What I did was I polled the system logs every 10 seconds and wrote them to a text file. If any new logs were found, I simply appended them to the file. This way, I could continuously collect the event messages and access the metadata for further analysis. It's kind of incomplete, but it served as a starting point.

Hope this helps! Let me know if you have any other questions.

[AchillesTD]

You can refer to my code here

[kaburagisec]

You can see an example of a live pull event in the script pull_live_events.py in this library nirsimetri/onvif-python, maybe you find the solution.