1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
# -*- coding: utf-8 -*-
# netdata
# Netdata is a module uses great Py3status (i3status wrapper) to
# display network information (Linux systems) in i3bar.
# For more information read:
# i3wm homepage: http://i3wm.org
# py3status homepage: https://github.com/ultrabug/py3status
# Copyright (C) <2013> <Shahin Azad [ishahinism at Gmail]>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# ----------------------------------------------------------------- #
# Notes:
# 1. netdata will check 'eth0' interface by default. You can
# change it by changing 'self.net_interface' variable in 'GetData'
# class.
# 2. Colors are depended on strict specification in traffic/netspeed methods.
# You can change them by manipulating conditions.
import subprocess
from time import time
# Method 'netSpeed' will use this variables to calculate downloaded
# bytes in last second. Initializing this variables globally is
# necessary since we can't use __init__ method in Py3Status class.
old_transmitted, old_received = 0, 0
class GetData:
"""Get system status
"""
def __init__(self):
# You can change it to another interface.
# It'll be used for grabbing net interface data.
self.net_interface = 'eth0'
def execCMD(self, cmd, arg):
"""Take a system command and its argument, then return the result.
Arguments:
- `cmd`: system command.
- `arg`: argument.
"""
result = subprocess.check_output([cmd, arg])
return result
def netBytes(self):
"""Execute 'cat /proc/net/dev', find the interface line (Default
'eth0') and grab received/transmitted bytes.
"""
net_data = self.execCMD('cat', '/proc/net/dev').decode('utf-8').split()
interface_index = net_data.index(self.net_interface + ':')
received_bytes = int(net_data[interface_index + 1])
transmitted_bytes = int(net_data[interface_index + 9])
return received_bytes, transmitted_bytes
class Py3status:
"""
System status in i3bar
"""
def netSpeed(self, json, i3status_config):
"""Calculate network speed ('eth0' interface) and return it. You can
change the interface using 'self.net_interface' variable in
'GetData' class.
"""
data = GetData()
response = {'full_text': '', 'name': 'net_speed'}
global old_received
global old_transmitted
received_bytes, transmitted_bytes = data.netBytes()
dl_speed = (received_bytes - old_received) / 1024.
up_speed = (transmitted_bytes - old_transmitted) / 1024.
if dl_speed < 30:
response['color'] = i3status_config['color_bad']
elif dl_speed < 60:
response['color'] = i3status_config['color_degraded']
else:
response['color'] = i3status_config['color_good']
response['full_text'] = "LAN(Kb): {:5.1f}↓ {:5.1f}↑"\
.format(dl_speed, up_speed)
response['cached_until'] = time()
old_received, old_transmitted = received_bytes, transmitted_bytes
return (0, response)
def traffic(self, json, i3status_config):
"""Calculate networks used traffic. Same as 'netSpeed' method you can
change the interface.
"""
data = GetData()
response = {'full_text': '', 'name': 'traffic'}
received_bytes, transmitted_bytes = data.netBytes()
download = received_bytes / 1024 / 1024.
upload = transmitted_bytes / 1024 / 1024.
total = download + upload
if total < 400:
response['color'] = i3status_config['color_good']
elif total < 700:
response['color'] = i3status_config['color_degraded']
else:
response['color'] = i3status_config['color_bad']
response['full_text'] = "T(Mb): {:3.0f}↓ {:3.0f}↑ {:3.0f}↕"\
.format(download, upload, total)
return (1, response)
|
