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#!/usr/bin/env python3
import cgi, cgitb
import json
import os
import socket
import subprocess
from subprocess import PIPE, STDOUT
def headers():
print("Content-Type: text/html; charset=utf-8")
print()
def debugging():
# TODO: figure out how to include this on the web page
#cgitb.enable()
pass
def setup():
headers()
debugging()
def format_response(response):
return json.dumps(response, ensure_ascii=False)
def run(*args, **kwargs):
output = subprocess.run(args, stdout=PIPE, stderr=STDOUT, universal_newlines=True, **kwargs)
return output.stdout
def hostname():
return socket.gethostname()
def top():
return run('top', '-b', '-n', '1', '-w', '512')
systemd_env = os.environ.copy()
systemd_env['SYSTEMD_PAGER'] = ''
systemd_env['SYSTEMD_COLORS'] = 'no'
def run_systemd_command(*args):
return run(*args, env=systemd_env)
def run_systemctl(*args):
return run_systemd_command('systemctl', *args)
def system_status_overview():
return run_systemctl('--system', 'status', '--full')
def system_status_failed():
return run_systemctl('--system', 'list-units', '--failed', '--full')
def user_status_overview():
return run_systemctl('--user', 'status', '--full')
def user_status_failed():
return run_systemctl('--user', 'list-units', '--failed', '--full')
def system_timers():
return run_systemctl('--system', 'list-timers', '--all', '--full')
def user_timers():
return run_systemctl('--user', 'list-timers', '--all', '--full')
def status():
status = {
'hostname': hostname(),
'top': top(),
'system': {
'overview': system_status_overview(),
'failed': system_status_failed(),
'timers': system_timers(),
},
'user': {
'overview': user_status_overview(),
'failed': user_status_failed(),
'timers': user_timers(),
},
}
return status
def timers():
timers = {
'system': {
'timers': system_timers(),
},
'user': {
'timers': user_timers(),
},
}
return timers
def do():
params = cgi.FieldStorage()
what = params['what'].value
if what == 'status':
response = status()
elif what == 'timers':
response = timers()
elif what == 'top':
response = top()
else:
raise RuntimeError(f'invalid parameter "what": {what}')
print(format_response(response))
def main():
setup()
do()
if __name__ == '__main__':
main()
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