run.py

#!/usr/bin/env python3
import socket
import platform
import shutil

import uvicorn

from kiosk.logger import logger


def check_runtime_environment() -> None:
    """ Checks that 'heif-convert' is available if running on Linux """
    system = platform.system()

    if system == 'Linux':
        # libheif is required for pillow-heif
        if shutil.which('heif-convert') is None:
            logger.warning('HEIC requires libheif tools on Linux. '
                           '(libheif-dev / libheif-tools')
        else:
            logger.info('HEIC tools detected')

        if not any(shutil.which(cmd) for cmd in ('libreoffice', 'soffice')):
            logger.warning('Office files requires libreoffice tools')
        else:
            logger.info('LibreOffice detected')

    elif system == 'Windows':
        if shutil.which('libreoffice') is None:
            logger.warning('Office files requires libreoffice tools')
        else:
            logger.info('libreOffice detected')


def get_lan_ip() -> str:
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

    try:
        s.connect(('8.8.8.8', 80))
        lan_ip = s.getsockname()[0]
    except Exception as e:
        logger.error(f'get_lan_ip error: {e}')
        lan_ip = '127.0.0.1'
    finally:
        s.close()

    return lan_ip


if __name__ == '__main__':
    check_runtime_environment()

    ip = get_lan_ip()
    port = 8080

    logger.info(f'Starting Kiosk server on {ip}:{port}')
    uvicorn.run(
        'app:app',
        host=ip,
        port=port,
        reload=True
    )