Very very simple implementation of python's simple http server to be launched via roslaunch. Utilizes python3
roslaunch simple_http_server_ros http_server.launch port:=[desired_port] directory:=[desired_directory_to_host]
OR
bash scripts/http_server.sh [desired_port] [desired_directory_to_host]
See the launch file as an example on how to implement in your own launch file.