57 lines
2.9 KiB
Python
57 lines
2.9 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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import os
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import subprocess
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# Make sure mount point exists
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if not os.path.isdir('/var/wifi'):
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os.mkdir('/var/wifi')
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# Scan unmounted disks/partitions to see if we need to reconfig wifi
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blkids = subprocess.run(['/usr/sbin/blkid', '-o', 'device'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
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for blkid in blkids.stdout.split('\n'):
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blkid = blkid.strip()
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if not blkid:
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continue
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# Verify the disk/partition isn't mounted
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findmnt = subprocess.run(['/usr/bin/findmnt', '-n', '-o', 'TARGET', blkid], stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
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mnt = findmnt.stdout.strip()
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if not mnt and not 'zram' in blkid:
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print('checking ' + blkid)
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try:
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# Mount the disk
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subprocess.run(['/usr/bin/mount', blkid, '/var/wifi/'], universal_newlines=True)
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# Check if the wifi.txt confg file is present (line 1 is essid, line 2 is PSK)
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if os.path.exists('/var/wifi/wifi.txt'):
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# Get wifi config
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essid = ''
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password = ''
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with open('/var/wifi/wifi.txt', 'r') as f:
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essid = f.readline().strip()
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password = f.readline().strip()
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if essid and password:
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print('Found wifi config (' + essid + ' / ' + password + ')')
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# Look for existing wifi connections that should be cleaned up
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nmcli = subprocess.run(['/usr/bin/nmcli', '-t', 'connection', 'show'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
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for connection in nmcli.stdout.split('\n'):
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# Ignore empty lines in output
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if not connection:
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continue
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connection_details = connection.split(':')
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if connection_details[2] == '802-11-wireless':
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# If we cannot clean up a wifi connection assume it's a non-issue
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try:
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# Cleanup existing wifi connection
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print('cleaning up wifi connection ' + connection_details[0])
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subprocess.run(['/usr/bin/nmcli', 'connection', 'del', connection_details[1]], universal_newlines=True)
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except:
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pass
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print('Connecting to ' + essid + ' with password ' + password)
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subprocess.run(['/usr/bin/nmcli', 'd', 'wifi', 'connect', essid, 'password', password], universal_newlines=True)
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# Unmount disk so it's safe to remove
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subprocess.run(['/usr/bin/umount', '/var/wifi/'], universal_newlines=True)
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except:
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# Unmount disk so it's safe to remove
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subprocess.run(['/usr/bin/umount', '/var/wifi/'], universal_newlines=True)
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