ea_get_connected_smartcard_readers.py

ea_get_connected_smartcard_readers.py

#!/usr/bin/python3

"""Intends to read USB SmartCard readers and return 
device names, product IDs, and vendor IDs"""

import json
import plistlib
import subprocess

def main():
    DRIVER_INFO_PLIST_PATH = open('/usr/libexec/SmartCardServices/drivers/ifd-ccid.bundle/Contents/Info.plist', 'rb')
    drive_info_plist = plistlib.load(DRIVER_INFO_PLIST_PATH)
    product_ids = drive_info_plist['ifdProductID']
    vendor_ids = drive_info_plist['ifdVendorID']

    cmd = ['/usr/sbin/system_profiler', 'SPUSBDataType', '-json']
    output = subprocess.check_output(cmd)

    info = json.loads(output)
    hardware_info = info['SPUSBDataType']
    items = []
    for dict in hardware_info:
        if "_items" in dict:
            for item in dict["_items"]:
                if item['vendor_id'] in vendor_ids and item['product_id'] in product_ids:
                    items.append(f"{item['_name']},{item['vendor_id']},{item['product_id']}")
    if not items:
        items = "N/A"
    print(f"<result>{items}</result>")

if __name__ == "__main__":
    main()