whos_home_widget

README.md

whos_home_widget: Smashing Dashboard Widget listing Who's Home

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Contents of this gist licensed as follows:

MIT License

Copyright (c) 2021 Damien Eversmann

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

whos_home_widget.coffee

class Dashing.WhosHomeWidget extends Dashing.Widget
  ready: ->
    $('.whos_home_widget').css('vertical-align','top')
    
  onData: (data) ->
    

whos_home_widget.html

<h3 class="title">Who's Home?</h3>
<table class="list-nostyle presence">
    <tr><th style="width: 50%">IN</th><th>OUT</th></tr>
    <tr>
        <td>
            <ul data-id="res_in" data-foreach-item="res_in">
                <li data-bind="item"></li>
            </ul>
        </td>
        <td>
            <ul data-id="res_out" data-foreach-item="res_out">
                <li data-bind="item"></li>
            </ul>
        </td>

    </tr>
</table>

whos_home_widget.rb

# encoding: UTF-8
require 'open3'
require 'json'

# json-formatted dictionary or residents and mac-addresses, eg. '{"John":"de:ad:00:be:ef:00","Jane":"12:34:56:78:90:ab"}'
residents = JSON.parse(ENV["WHOS_HOME_RESIDENTS"])

# fully qualified CIDR of local network, eg. "192.168.1.0/24"
network = ENV["WHOS_HOME_NETWORK"]

SCHEDULER.every '60s', :first_in => 0 do |job|

    res_in = []
    res_out = []

    stdout, stderr, status = Open3.capture3("nmap -sP #{network}")
    stdout, stderr, status = Open3.capture3("arp -an")


    residents.keys.each do |resident|
        needle = residents[resident]
        if /#{needle}/ =~ stdout
            res_in.push resident
        else
            res_out.push resident
        end
    end

    send_event('whos_home_widget', { res_in: res_in, res_out: res_out })
end

whos_home_widget.scss

$background-color: #dc5945;

.whos_home_widget { 
  background-color: $background-color;
  padding-left: 5px;
  padding-right: 5px;

    .updated-at { 
      color: rgba(0, 0, 0, 0.7); 
    }
    
    .logo { 
      background-color: transparent;
      float: right;  
      padding-top: 0; 
      padding-bottom: 5px; 
    }
  
    .logo img { 
      float: right; 
    }
  
    table.presence {
      font-size: 24px;
    } 
  
    table.presence td {
      border-top: white solid 2px;
      vertical-align: top;
    }

  }