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103
SARA/cellLocate/server_conf.py
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103
SARA/cellLocate/server_conf.py
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'''
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____ _ ____ _
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/ ___| / \ | _ \ / \
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\___ \ / _ \ | |_) | / _ \
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___) / ___ \| _ < / ___ \
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|____/_/ \_\_| \_\/_/ \_\
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Script to Configures the network connection to a Multi GNSS Assistance (MGA) server used also per CellLocate
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/usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/cellLocate/server_conf.py ttyAMA2 1
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AT+UGSRV="cell-live1.services.u-blox.com","cell-live2.services.u-blox.com","XkEKfGqVSbmNE1eZfBZm4Q"
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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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parameter = sys.argv[1:] # Exclude the script name
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port='/dev/'+parameter[0] # ex: ttyAMA2
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timeout = float(parameter[1]) # ex:2
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#get baudrate
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def load_config(config_file):
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try:
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with open(config_file, 'r') as file:
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config_data = json.load(file)
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return config_data
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except Exception as e:
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print(f"Error loading config file: {e}")
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return {}
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# Define the config file path
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config_file = '/var/www/nebuleair_pro_4g/config.json'
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# Load the configuration data
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config = load_config(config_file)
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# Access the shared variables
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baudrate = config.get('SaraR4_baudrate', 115200)
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ser = serial.Serial(
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port=port, #USB0 or ttyS0
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baudrate=baudrate, #115200 ou 9600
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parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
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stopbits=serial.STOPBITS_ONE,
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bytesize=serial.EIGHTBITS,
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timeout = timeout
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)
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def read_complete_response(serial_connection, timeout=2, end_of_response_timeout=2, wait_for_lines=None, debug=True):
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'''
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Fonction très importante !!!
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Reads the complete response from a serial connection and waits for specific lines.
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'''
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if wait_for_lines is None:
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wait_for_lines = [] # Default to an empty list if not provided
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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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start_time = time.time()
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while True:
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elapsed_time = time.time() - start_time # Time since function start
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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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# Decode and check for any target line
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decoded_response = response.decode('utf-8', errors='replace')
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for target_line in wait_for_lines:
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if target_line in decoded_response:
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if debug:
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print(f"[DEBUG] 🔎 Found target line: {target_line} (in {elapsed_time:.2f}s)")
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return decoded_response # Return response immediately if a target line is found
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elif time.time() > end_time:
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if debug:
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print(f"[DEBUG] Timeout reached. No more data received.")
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break
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time.sleep(0.1) # Short sleep to prevent busy waiting
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# Final response and debug output
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total_elapsed_time = time.time() - start_time
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if debug:
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print(f"[DEBUG] ⏱️ elapsed time: {total_elapsed_time:.2f}s. ⏱️")
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# Check if the elapsed time exceeded 10 seconds
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if total_elapsed_time > 10 and debug:
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print(f"[ALERT] 🚨 The operation took too long 🚨")
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print(f'<span style="color: red;font-weight: bold;">[ALERT] ⚠️{total_elapsed_time:.2f}s⚠️</span>')
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return response.decode('utf-8', errors='replace') # Return the full response if no target line is found
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#command = f'ATI\r'
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command = f'AT+UGSRV="cell-live1.services.u-blox.com","cell-live2.services.u-blox.com","XkEKfGqVSbmNE1eZfBZm4Q"\r'
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ser.write((command + '\r').encode('utf-8'))
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response = read_complete_response(ser, wait_for_lines=["+UULOC"])
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print(response)
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@@ -121,19 +121,38 @@ try:
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print('<h3>Start reboot python script</h3>')
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#check modem status
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#Attention:
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# SARA R4 response: Manufacturer: u-blox Model: SARA-R410M-02B
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# SArA R5 response: SARA-R500S-01B-00
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print("⚙️Check SARA Status")
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command = f'ATI\r'
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ser_sara.write(command.encode('utf-8'))
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response_SARA_ATI = read_complete_response(ser_sara, wait_for_lines=["IMEI"])
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print(response_SARA_ATI)
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match = re.search(r"Model:\s*(.+)", response_SARA_ATI)
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model = match.group(1).strip() if match else "Unknown" # Strip unwanted characters
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print(f" Model: {model}")
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# Check for SARA model with more robust regex
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model = "Unknown"
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if "SARA-R410M" in response_SARA_ATI:
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model = "SARA-R410M"
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print("📱 Detected SARA R4 modem")
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elif "SARA-R500" in response_SARA_ATI:
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model = "SARA-R500"
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print("📱 Detected SARA R5 modem")
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else:
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# Fallback to regex match if direct string match fails
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match = re.search(r"Model:\s*([A-Za-z0-9\-]+)", response_SARA_ATI)
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if match:
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model = match.group(1).strip()
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else:
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model = "Unknown"
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print("⚠️ Could not identify modem model")
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print(f"🔍 Model: {model}")
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update_json_key(config_file, "modem_version", model)
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time.sleep(1)
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# 1. Set AIRCARTO URL
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# 1. Set AIRCARTO URL (profile id = 0)
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print('➡️Set aircarto URL')
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aircarto_profile_id = 0
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aircarto_url="data.nebuleair.fr"
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@@ -143,26 +162,74 @@ try:
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print(response_SARA_1)
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time.sleep(1)
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#2. Set uSpot URL
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#2. Set uSpot URL (profile id = 1)
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print('➡️Set uSpot URL')
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uSpot_profile_id = 1
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uSpot_url="api-prod.uspot.probesys.net"
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security_profile_id = 1
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#step 1: import the certificate
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print("****")
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certificate_name = "e6"
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with open("/var/www/nebuleair_pro_4g/SARA/SSL/certificate/e6.pem", "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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print("\033[0;33m Import certificate\033[0m")
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# AT+USECMNG=0,<type>,<internal_name>,<data_size>
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# type-> 0 -> trusted root CA
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command = f'AT+USECMNG=0,0,"{certificate_name}",{size_of_string}\r'
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ser_sara.write((command + '\r').encode('utf-8'))
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response_SARA_1 = read_complete_response(ser_sara)
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print(response_SARA_1)
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time.sleep(0.5)
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print("\033[0;33mAdd certificate\033[0m")
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ser_sara.write(certificate)
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response_SARA_2 = read_complete_response(ser_sara)
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print(response_SARA_2)
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time.sleep(0.5)
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# SECURITY PROFILE
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# op_code: 3 -> trusted root certificate internal name
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print("\033[0;33mSet the security profile (choose cert)\033[0m")
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command = f'AT+USECPRF={security_profile_id},3,"{certificate_name}"\r'
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ser_sara.write((command + '\r').encode('utf-8'))
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response_SARA_5c = read_complete_response(ser_sara, wait_for_lines=["OK"])
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print(response_SARA_5c)
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time.sleep(0.5)
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#step 4: set url (op_code = 1)
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command = f'AT+UHTTP={uSpot_profile_id},1,"{uSpot_url}"\r'
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ser_sara.write(command.encode('utf-8'))
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response_SARA_2 = read_complete_response(ser_sara, wait_for_lines=["OK"])
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print(response_SARA_2)
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time.sleep(1)
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print("set port 81")
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command = f'AT+UHTTP={uSpot_profile_id},5,81\r'
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#step 4: set PORT (op_code = 5)
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print("set port 443")
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command = f'AT+UHTTP={uSpot_profile_id},5,443\r'
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ser_sara.write((command + '\r').encode('utf-8'))
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response_SARA_55 = read_complete_response(ser_sara, wait_for_lines=["OK"])
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print(response_SARA_55)
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time.sleep(1)
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#step 4: set url to SSL (op_code = 6) (http_secure = 1 for HTTPS)(USECMNG_PROFILE = 2)
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print("\033[0;33mSET SSL\033[0m")
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http_secure = 1
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command = f'AT+UHTTP={uSpot_profile_id},6,{http_secure},{security_profile_id}\r'
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#command = f'AT+UHTTP={profile_id},6,{http_secure}\r'
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ser_sara.write(command.encode('utf-8'))
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response_SARA_5 = read_complete_response(ser_sara, wait_for_lines=["OK"])
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print(response_SARA_5)
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time.sleep(1)
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#3. Get localisation (CellLocate)
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mode = 2
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sensor = 2
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mode = 2 #single shot position
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sensor = 2 #use cellular CellLocate® location information
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response_type = 0
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timeout_s = 2
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accuracy_m = 1
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