47 lines
1.9 KiB
Python
47 lines
1.9 KiB
Python
import socket
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import httpx
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def generate_node_nickname():
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"""
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Generates a temporary unit registration ID in the format:
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"Node-{last octet of local IP}-{last octet of public IP}".
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This ID is intended for initial unit registration and will be replaced
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by a server-generated GUID upon assignment.
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Returns:
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str: The formatted registration ID.
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"""
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local_ip_octet = "unknown"
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public_ip_octet = "unknown"
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# Get the last octet of the local IP address
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try:
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# Create a UDP socket
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s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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# Connect to an external host (Google's DNS) to get the local IP
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# This doesn't send any data, just establishes a connection for getsockname()
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s.connect(("8.8.8.8", 80))
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local_ip = s.getsockname()[0]
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s.close()
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local_ip_octet = local_ip.split('.')[-1]
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except Exception as e:
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print(f"Warning: Could not determine local IP address. Error: {e}")
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# Get the last octet of the public IP address using an external service with httpx
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try:
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# Use ipify.org to get the public IP (a widely used, simple service)
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# httpx.get() is synchronous by default
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response = httpx.get('https://api.ipify.org?format=json')
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response.raise_for_status() # Raise an HTTPStatusError for bad responses (4xx or 5xx)
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public_ip = response.json()['ip']
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public_ip_octet = public_ip.split('.')[-1]
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except httpx.RequestError as e:
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print(f"Warning: Could not determine public IP address (network error with httpx). Error: {e}")
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except httpx.HTTPStatusError as e:
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print(f"Warning: Could not determine public IP address (HTTP status error with httpx). Error: {e}")
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except ValueError as e:
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print(f"Warning: Could not parse public IP response. Error: {e}")
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return f"Node-{local_ip_octet}-{public_ip_octet}"
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