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import collections
import psutil
from functools import wraps
def safe(name):
def decorator_safe(func):
"""
Decorator for try-catch on string assembly
"""
@wraps(func)
def wrap_safe(*args, **kwargs):
try:
return func(*args, **kwargs)
except Exception as e:
return "Failed to get {}: {}".format(name, e)
return wrap_safe
return decorator_safe
def get_proc_attrib(attr):
if callable(attr):
try:
return attr()
except psutil.Error:
return None
else:
return attr
@safe("cpu/mem info")
def _cpu_mem_str():
vm = psutil.virtual_memory()
cpu_tp = psutil.cpu_times_percent(0.1)
str_items = []
str_items.append(
"CPU: Idle: {}% User: {}% System: {}% IOwait: {}%\n".format(
cpu_tp.idle, cpu_tp.user, cpu_tp.system, cpu_tp.iowait
)
)
str_items.append(
"MEM: total {} Gb available: {} Gb used: {} Gb free: {} Gb active: {} Gb inactive: {} Gb shared: {} Gb\n".format(
round(vm.total / 1e9, 2),
round(vm.available / 1e9, 2),
round(vm.used / 1e9, 2),
round(vm.free / 1e9, 2),
round(vm.active / 1e9, 2),
round(vm.inactive / 1e9, 2),
round(vm.shared / 1e9, 2),
)
)
str_items.append("Used swap: {}%\n".format(psutil.swap_memory().percent))
return "".join(str_items)
@safe("processes tree")
def _proc_tree_str():
tree = collections.defaultdict(list)
for p in psutil.process_iter():
try:
tree[p.ppid()].append(p.pid)
except (psutil.NoSuchProcess, psutil.ZombieProcess):
pass
# on systems supporting PID 0, PID 0's parent is usually 0
if 0 in tree and 0 in tree[0]:
tree[0].remove(0)
return _print_proc_tree(min(tree), tree)
def _print_proc_tree(parent_root, tree, indent_root=''):
stack = [(parent_root, indent_root, "")]
str_items = list()
while len(stack) > 0:
try:
parent, indent, prefix = stack.pop()
p = psutil.Process(parent)
name = get_proc_attrib(p.name)
str_items.append("{}({}, '{}'".format(prefix, parent, name if name else '?'))
exe = get_proc_attrib(p.exe)
if exe:
str_items.append(" [{}]".format(exe))
str_items.append(") ")
str_items.append(" st: {}".format(p.status()))
str_items.append(" mem: {}%".format(round(p.memory_percent(), 2)))
ndfs = get_proc_attrib(p.num_fds)
if ndfs and ndfs > 0:
str_items.append(" fds: {}".format(ndfs))
conns = get_proc_attrib(p.connections)
if conns and len(conns) > 1:
str_items.append(" num con: {}".format(len(conns)))
ths = get_proc_attrib(p.num_threads)
if ths and ths > 1:
str_items.append(" threads: {}".format(ths))
str_items.append("\n")
except psutil.Error:
name = "?"
str_items.append("({}, '{}')\n".format(parent, name))
if parent not in tree:
continue
child = tree[parent][-1]
stack.append((child, indent + " ", indent + "`_ "))
children = tree[parent][:-1]
children.reverse()
for child in children:
stack.append((child, indent + "| ", indent + "|- "))
return "".join(str_items)
@safe("network info")
def _network_conn_str():
str_items = list()
counters = psutil.net_io_counters()
str_items.append(
"\nPackSent: {} PackRecv: {} ErrIn: {} ErrOut: {} DropIn: {} DropOut: {}\n\n".format(
counters.packets_sent,
counters.packets_recv,
counters.errin,
counters.errout,
counters.dropin,
counters.dropout,
)
)
ifaces = psutil.net_if_addrs()
conns = psutil.net_connections()
list_ip = collections.defaultdict(list)
for con in conns:
list_ip[con.laddr.ip].append(con)
for name, addrs in ifaces.iteritems():
str_items.append("{}:\n".format(name))
for ip in addrs:
str_items.append(" {}".format(ip.address))
if ip.netmask:
str_items.append(" mask={}".format(ip.netmask))
if ip.broadcast:
str_items.append(" bc={}".format(ip.broadcast))
str_items.append("\n")
for con in list_ip[ip.address]:
str_items.append(" {}".format(con.laddr.port))
if con.raddr:
str_items.append(" <--> {} : {}".format(con.raddr.ip, con.raddr.port))
str_items.append(" (stat: {}".format(con.status))
if con.pid:
str_items.append(" proc: {} (pid={})".format(psutil.Process(con.pid).exe(), con.pid))
str_items.append(")\n")
del list_ip[ip.address]
str_items.append("***\n")
for ip, conns in list_ip.iteritems():
str_items.append(" {}\n".format(ip))
for con in conns:
str_items.append(" {}".format(con.laddr.port))
if con.raddr:
str_items.append(" <--> {} : {}".format(con.raddr.ip, con.raddr.port))
str_items.append(" (stat: {}".format(con.status))
if con.pid:
str_items.append(" proc: {} (pid={})".format(psutil.Process(con.pid).exe(), con.pid))
str_items.append(")\n")
return "".join(str_items)
@safe("info")
def get_system_info():
str_items = list()
str_items.append("\n --- CPU MEM --- \n")
str_items.append(_cpu_mem_str())
str_items.append("\n")
str_items.append("\n --- PROCESSES TREE --- \n")
str_items.append(_proc_tree_str())
str_items.append("\n")
str_items.append("\n --- NETWORK INFO --- \n")
str_items.append(_network_conn_str())
str_items.append("\n")
return "".join(str_items)
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