84 lines
2.6 KiB
Python
84 lines
2.6 KiB
Python
"""
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A module to show currently active network connection (ethernet or wifi)
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and connection strength.
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"""
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import util.cli
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import util.format
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import core.module
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import core.widget
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import core.input
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class Module(core.module.Module):
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@core.decorators.every(seconds=10)
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def __init__(self, config, theme):
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super().__init__(config, theme, core.widget.Widget(self.network))
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self.__is_wireless = True
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self.__interface = None
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self.__message = None
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self.__signal = -110
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# Set up event handler for left mouse click
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core.input.register(self, button=core.input.LEFT_MOUSE, cmd="nm-connection-editor")
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def network(self, widgets):
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# run ip route command, tokenize output
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cmd = "ip route get 8.8.8.8"
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std_out = util.cli.execute(cmd)
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route_str = " ".join(std_out.split())
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route_tokens = route_str.split(" ")
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# Attempt to extract a valid network interface device
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try:
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self.__interface = route_tokens[route_tokens.index("dev") + 1]
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except ValueError:
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self.__interface = None
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# Check to see if the interface (if it exists) is wireless
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if self.__interface:
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with open("/proc/net/wireless", "r") as f:
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self.__is_wireless = self.__interface in f.read()
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f.close()
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# setup message to send to the user
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if self.__interface is None:
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self.__message = " No connection"
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elif self.__is_wireless:
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cmd = "iwgetid"
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iw_dat = util.cli.execute(cmd)
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has_ssid = "ESSID" in iw_dat
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ssid = iw_dat[iw_dat.index(":") + 2: -2] if has_ssid else "Unknown"
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# Get connection strength
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cmd = "iwconfig {}".format(self.__interface)
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config_dat = " ".join(util.cli.execute(cmd).split())
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config_tokens = config_dat.replace("=", " ").split()
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strength = config_tokens[config_tokens.index("level") + 1]
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self.__signal = util.format.asint(strength, minimum=-110, maximum=-30)
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self.__message = self.__generate_wireles_message(ssid, self.__signal)
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else:
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self.__signal = -30
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self.__message = " Ethernet"
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return self.__message
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def state(self, widget):
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if self.__signal < -80:
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return "critical"
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if self.__signal < -65:
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return "warning"
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return None
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def __generate_wireles_message(self, ssid, strength):
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computed_strength = 100 * ((strength + 100) / 70.0)
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return " {} {}%".format(ssid, int(computed_strength))
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