111 lines
2.9 KiB
Python
111 lines
2.9 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""Displays network traffic
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* No extra configuration needed
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"""
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import psutil
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import netifaces
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import core.module
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import core.widget
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import util.format
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WIDGET_NAME = "network_traffic"
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class Module(core.module.Module):
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def __init__(self, config, theme):
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widgets = [
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core.widget.Widget(
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module=self,
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name="{0}.rx".format(WIDGET_NAME),
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full_text=self.download_rate,
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),
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core.widget.Widget(
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module=self,
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name="{0}.tx".format(WIDGET_NAME),
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full_text=self.upload_rate,
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),
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]
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super().__init__(config, theme, widgets)
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self.widgets()[0].set("theme.minwidth", "0000000KiB/s")
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self.widgets()[1].set("theme.minwidth", "0000000KiB/s")
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try:
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self._bandwidth = BandwidthInfo()
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self._rate_recv = "?"
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self._rate_sent = "?"
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self._bytes_recv = self._bandwidth.bytes_recv()
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self._bytes_sent = self._bandwidth.bytes_sent()
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except Exception:
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""" We do not want do explode anything """
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pass
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def state(self, widget):
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"""Return the widget state"""
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if widget.name == "{}.rx".format(WIDGET_NAME):
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return "rx"
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elif widget.name == "{}.tx".format(WIDGET_NAME):
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return "tx"
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return None
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def update(self):
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try:
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bytes_recv = self._bandwidth.bytes_recv()
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bytes_sent = self._bandwidth.bytes_sent()
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self._rate_recv = bytes_recv - self._bytes_recv
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self._rate_sent = bytes_sent - self._bytes_sent
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self._bytes_recv, self._bytes_sent = bytes_recv, bytes_sent
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except Exception:
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""" We do not want do explode anything """
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pass
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def download_rate(self, _):
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return "{}/s".format(util.format.byte(self._rate_recv))
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def upload_rate(self, _):
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return "{}/s".format(util.format.byte(self._rate_sent))
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class BandwidthInfo(object):
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"""Get received/sent bytes from network adapter"""
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def bytes_recv(self):
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"""Return received bytes"""
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return self.bandwidth().bytes_recv
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def bytes_sent(self):
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"""Return sent bytes"""
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return self.bandwidth().bytes_sent
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def bandwidth(self):
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"""Return bandwidth information"""
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io_counters = self.io_counters()
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return io_counters[self.default_network_adapter()]
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@classmethod
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def default_network_adapter(cls):
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"""Return default active network adapter"""
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gateway = netifaces.gateways()["default"]
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if not gateway:
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raise "No default gateway found"
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return gateway[netifaces.AF_INET][1]
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@classmethod
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def io_counters(cls):
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"""Return IO counters"""
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return psutil.net_io_counters(pernic=True)
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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