optional-tools/hosts-ping.py

   1 #!/usr/bin/python
   2 # -*- coding: utf-8 -*-
   3
   4 import ping, socket
   5 import os, time
   6
   7 # (G)2013 xChaos, Arachne Labs http://arachne.cz + SPOJE.NET http://spoje.net
   8
   9 hosts = "/etc/hosts"
  10 timeout = 1500 #timeout in ms
  11 interval = 200 #ping interval in ms
  12 attempts = 10
  13
  14 tld = ".czf"
  15 domain = ".brevnov.czf"
  16 smokeping_prefix = "Klienti"
  17 smpater_prefix = "Backbone"
  18 smokeping_babble_length = 3
  19 smpater_babble_length = 2
  20 smokeping_html = "/var/www/html/web/sites/sysifos/hosts-ping/index.html"
  21 smpater_html = "/var/www/html/web/sites/sysifos/hosts-ping/backbone.html"
  22 smokeping_url = "http://sisyfos.brevnov.czf/cgi-bin/smokeping.cgi?filter=%s&amp;target=%s"
  23 smpater_url = "http://tartarus.brevnov.czf/cgi-bin/smokeping.cgi?filter=%s&amp;target=%s"
  24 table_head = """
  25 <table class="decorated last">
  26 <caption>hosts ping (%s)</caption><thead><tr>
  27 <th style="text-align: right;">#</th>
  28 <th>hostname</th>
  29 <th style="text-align: right;">received</th>
  30 <th style="text-align: right;">avg</th>
  31 <th style="text-align: right;">best</th>
  32 <th style="text-align: right;">worst</th>
  33 </tr></thead><tbody>
  34 """
  35 table_end = """
  36 </tbody></table>
  37 <br />
  38 <p>Page generated by (G)2013 xChaos hosts-ping version 0.1-a</p>
  39 """
  40
  41 def try_to_ping(host):
  42   sum = 0.0
  43   best = None
  44   worst = None
  45   loss = 0
  46
  47   for i in range(0, attempts):
  48     try:
  49       delay = ping.Ping(host, timeout = timeout).do() #timeout in ms
  50       time.sleep(interval/1000)
  51
  52       if delay:
  53         sum += delay
  54
  55         if not best or best > delay:
  56           best = delay
  57
  58         if not worst or worst < delay:
  59           worst = delay
  60
  61       else:
  62         loss += 1
  63
  64     except socket.error, e:
  65       loss += 1
  66
  67   return (sum/attempts, best, worst, loss)
  68
  69
  70 def smokenam_style(hostname, prefix, babble_length):
  71
  72   if not tld in hostname:
  73     hostname += domain
  74
  75   babble = hostname.split('.')
  76   return '.'.join([prefix,] + [a_tooth for a_tooth in reversed(babble)][1:babble_length] + ['-'.join(babble),])
  77
  78
  79 def append_host(html, host, base_url, counter):
  80   style = {'right': 'text-align: right;'}
  81   columns = ('loss','avg','best','worst')
  82   red_treshold = (0, 100, 50, 200)
  83   green_treshold = (0, 2, 1, 10)
  84
  85   for kolikaty, column in enumerate(columns):
  86     style[column] = style['right']
  87
  88     if not host[column]:
  89       host[column] = 0 #don't want it to be "None" type
  90
  91     if host[column] > red_treshold[kolikaty]:
  92       style[column] += ' color: red;'
  93     elif host[column] < green_treshold[kolikaty]:
  94       style[column] += ' color: green;'
  95
  96   received = attempts-host['loss']
  97   html.write(   ('<tr class="%s"><td style="%s">%d</td><td><a href="%s" target="_blank" class="blue">%s</a></td><td style="%s">%d/%d</td>' + "\n")
  98               % (('even', 'odd')[counter % 2], style['right'], counter, base_url % (host['name'], host['smokename']), host['name'], style['loss'], received, attempts))
  99
 100   if host['avg'] and host['best'] and host['worst']:
 101     html.write(   ('<td style="%s">%1.2f</td><td style="%s">%1.2f</td><td style="%s">%1.2f</td></tr>' + "\n")
 102                 % (style['avg'], host['avg'], style['best'], host['best'], style['worst'], host['worst']))
 103   else:
 104     html.write(3*('<td style="%s">-</td>' % style['loss']) + "\n")
 105
 106 # main program
 107
 108 smokeping = []
 109 smpater = []
 110
 111 for radek in open(hosts):
 112   if radek[0] != '#':
 113     is_smokeping = 'smokeping' in radek and not 'hidden' in radek
 114     is_smpater = 'smpater' in radek
 115     if is_smokeping or is_smpater:
 116       slovo = radek.split("\t")
 117       host = { 'ip': slovo[0], 'name': slovo[1].split(' ')[0] }
 118       (host['avg'], host['best'], host['worst'], host['loss']) = try_to_ping(host['ip'])
 119
 120       if is_smokeping:
 121         host['smokename'] = smokenam_style(host['name'], smokeping_prefix, smokeping_babble_length)
 122         smokeping.append(host)
 123       else:
 124         host['smokename'] = smokenam_style(host['name'], smpater_prefix, smpater_babble_length)
 125         smpater.append(host)
 126
 127 # smokeping
 128
 129 html = open(smokeping_html, 'w')
 130 html.write("<h1>Smokeping - klientská zařízení</h1>");
 131 html.write(table_head % time.ctime());
 132
 133 for kolikaty, host in enumerate(sorted(smokeping, key = lambda host: -host['loss']*attempts*timeout-host['avg'])):
 134   append_host(html, host, smokeping_url, kolikaty+1)
 135
 136 html.write(table_end);
 137 html.close();
 138
 139 # smpater
 140
 141 html = open(smpater_html, 'w')
 142 html.write("<h1>Smokeping - páteřní routery</h1>");
 143 html.write(table_head % time.ctime());
 144
 145 for kolikaty, host in enumerate(sorted(smpater, key = lambda host: -host['loss']*attempts*timeout-host['avg'])):
 146   append_host(html, host, smpater_url, kolikaty+1)
 147
 148 html.write(table_end);
 149 html.close();