Open-Source based anti-face spoofing?

So I am building a face recognition algorithm, and want to ensure that no individual is using a photo to spoof. I have been trying to find out a pre-trained model where I could get the liveliness of the face but had no luck. I would appreciate it it if anyone could give me ninsight into what could be done to doto achieve this.
ps. I also tried methodologies like making them do some actions like rotate their face to …

algorithm building computervision face face recognition photo recognition