64 lines
1.8 KiB
Python
Executable File
64 lines
1.8 KiB
Python
Executable File
'''
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Script to add the SSL certificate
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ex:
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python3 /var/www/nebuleair_pro_4g/SARA/SSL/sara_add_certif_v2.py ttyAMA2 2
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'''
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import serial
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import time
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import sys
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import json
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import os
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parameter = sys.argv[1:] # Exclude the script name
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port = '/dev/' + parameter[0] # e.g., ttyAMA2
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timeout = float(parameter[1]) # e.g., 2 seconds
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baudrate = 115200
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def read_complete_response(serial_connection, timeout=2, end_of_response_timeout=2):
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response = bytearray()
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serial_connection.timeout = timeout
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end_time = time.time() + end_of_response_timeout
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while True:
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if serial_connection.in_waiting > 0:
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data = serial_connection.read(serial_connection.in_waiting)
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response.extend(data)
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end_time = time.time() + end_of_response_timeout # Reset timeout on new data
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elif time.time() > end_time:
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break
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time.sleep(0.1)
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return response.decode('utf-8', errors='replace')
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try:
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with open("/var/www/nebuleair_pro_4g/SARA/SSL/isrgrootx1.der", "rb") as cert_file:
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certificate = cert_file.read()
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size_of_string = len(certificate)
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ser = serial.Serial(port=port, baudrate=baudrate, timeout=timeout)
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command = f'AT+USECMNG=0,0,"myCertificate2",{size_of_string}\r'
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ser.write((command + '\r').encode('utf-8'))
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response_SARA_1 = read_complete_response(ser)
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print("Write certificate metadata")
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print(response_SARA_1)
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time.sleep(1)
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ser.write(certificate)
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response_SARA_2 = read_complete_response(ser)
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print("Write certificate data")
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print(response_SARA_2)
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except serial.SerialException as e:
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print(f"Serial Error: {e}")
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except FileNotFoundError as e:
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print(f"File Error: {e}")
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except Exception as e:
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print(f"Unexpected Error: {e}")
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finally:
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if 'ser' in locals() and ser.is_open:
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ser.close()
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