Current File : //backups/router/usr/local/opnsense/scripts/system/activity.py
#!/usr/local/bin/python3
"""
Copyright (c) 2015-2019 Ad Schellevis <ad@opnsense.org>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
--------------------------------------------------------------------------------------
returns system activity (top)
"""
import collections
import tempfile
import subprocess
import os
import sys
import ujson
if __name__ == '__main__':
fieldnames = None
field_max_width = dict()
result = {'headers': [], 'details': []}
is_header = True
tidpid = dict()
for line in subprocess.run(['/usr/bin/procstat','-ath'], capture_output=True, text=True).stdout.split('\n'):
parts = line.split(maxsplit=2)
if len(parts) > 1:
tidpid[parts[1]] = parts[0]
# grab second display so that CPU time data appears
sp = subprocess.run(['/usr/bin/top','-aHSTn','-d2','999999'], capture_output=True, text=True)
topData = sp.stdout.strip().split('\n\n',2)[-1]
for line in topData.split('\n'):
# end of header, start of top detection
if line.find('USERNAME') > -1 and line.find('COMMAND') > -1:
is_header = False
if is_header:
# parse headers from top command, add to result
if len(line.strip()) > 0:
result['headers'].append(line)
else:
# parse details including fieldnames (leave original)
if fieldnames is None:
fieldnames = ['PID'] + line.split()
else:
tmp = line.split(maxsplit=10)
record = {'C': '0'}
for field_id in range(len(fieldnames)):
fieldname = fieldnames[field_id]
if field_id == 0: # PID
record[fieldname] = tidpid[tmp[0]] if tmp[0] in tidpid else ''
else:
record[fieldname] = tmp[field_id - 1]
if fieldname not in field_max_width or field_max_width[fieldname] < len(record[fieldname]):
field_max_width[fieldname] = len(record[fieldname])
result['details'].append(record)
if len(sys.argv) > 1 and sys.argv[1] == 'json':
# output as json
print(ujson.dumps(result))
else:
# output plain (reconstruct data)
for header_line in result['headers']:
print (header_line)
print ("\n")
if fieldnames is not None:
format_str = ""
header_fields = {}
for fieldname in fieldnames:
format_str = '%s %%(%s)-%ds'%(format_str,fieldname, field_max_width[fieldname]+1)
header_fields[fieldname] = fieldname
print (format_str % header_fields)
for detail_line in result['details']:
print (format_str % detail_line)
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