www/gadgets/sitemonitor.py

   1 #!/usr/bin/python
   2
   3 import cgi
   4 import cgitb
   5 cgitb.enable()
   6 print "Content-Type: text/html\r\n"
   7
   8 import time
   9 from monitor.model import *
  10 from monitor import database
  11 from HyperText.HTML import A, BR, IMG, TABLE, TR, TH, TD, EM, quote_body, CENTER
  12 from HyperText.Documents import Document
  13
  14 form = cgi.FieldStorage()
  15
  16 print """
  17 <style>
  18 table {
  19         align: center;
  20     border-color: #ccc;
  21     border-width: 0 0 1px 1px;
  22     border-style: solid;
  23 }
  24 th {
  25     border-color: #fff;
  26     border-width: 1px 1px 1px 1px;
  27     border-style: solid;
  28     margin: 0;
  29     padding: 0px;
  30 }
  31 td {
  32     border-color: #ccc;
  33     border-width: 1px 1px 0 0;
  34     border-style: solid;
  35     margin: 0;
  36     padding: 3px;
  37 }
  38 </style>
  39 """
  40
  41 def get(fb, path):
  42     indexes = path.split("/")
  43     values = fb
  44     for index in indexes:
  45         if index in values:
  46             values = values[index]
  47         else:
  48             return None
  49     return values
  50
  51 def diff_time(timestamp, abstime=True):
  52         import math
  53         now = time.time()
  54         if timestamp == None:
  55                 return "unknown"
  56         if abstime:
  57                 diff = now - timestamp
  58         else:
  59                 diff = timestamp
  60         # return the number of seconds as a difference from current time.
  61         t_str = ""
  62         if diff < 60: # sec in min.
  63                 t = diff / 1
  64                 t_str = "%s sec ago" % int(math.ceil(t))
  65         elif diff < 60*60: # sec in hour
  66                 t = diff / (60)
  67                 t_str = "%s min ago" % int(math.ceil(t))
  68         elif diff < 60*60*24: # sec in day
  69                 t = diff / (60*60)
  70                 t_str = "%s hrs ago" % int(math.ceil(t))
  71         elif diff < 60*60*24*14: # sec in week
  72                 t = diff / (60*60*24)
  73                 t_str = "%s days ago" % int(math.ceil(t))
  74         elif diff <= 60*60*24*30: # approx sec in month
  75                 t = diff / (60*60*24*7)
  76                 t_str = "%s weeks ago" % int(math.ceil(t))
  77         elif diff > 60*60*24*30: # approx sec in month
  78                 t = diff / (60*60*24*30)
  79                 t_str = "%s months ago" % int(t)
  80         return t_str
  81
  82 def get_value(val):
  83
  84         if form.has_key(val):
  85                 retvalue = form.getvalue(val)
  86         else:
  87                 retvalue = None
  88
  89         return retvalue
  90
  91 def state_to_color(state):
  92         if state == "BOOT":
  93                 return "darkseagreen"
  94         elif state == "DEBUG":
  95                 return "gold"
  96         elif state == "DOWN":
  97                 return "indianred"
  98         else:
  99                 return "lightgrey"
 100
 101 def main():
 102
 103         if form.has_key('loginbase'):
 104                 loginbase = form.getvalue('loginbase')
 105                 loginbase = loginbase.rstrip("_")
 106         else:
 107                 loginbase = "undefined"
 108
 109         fb = database.dbLoad("findbad")
 110         lb2hn = database.dbLoad("plcdb_lb2hn")
 111         pf = database.dbLoad("node_persistflags")
 112
 113         # SETUP header
 114         t = TABLE(border="0", cellspacing="0", cellpadding="0")
 115         r = TR()
 116
 117         if loginbase not in lb2hn:
 118                 value = ("""Select 'Edit settings' to enter your Site's loginbase.<br><br>
 119                                         The loginbase is the unchangable portion of your slicename.
 120                                         For instance, your slice follows the pattern loginbase_slicename.<br><br>
 121                                         If this hint is unclear, then you can find your loginbase by visiting 'My Site' at <a target=_blank href=http://www.planet-lab.org>'PlanetLab.org'</a>""", "")
 122                 r = TR(TD(value[0]))
 123                 t.append(r)
 124         else:
 125                 for value in ['Hostname', 'Since']:
 126                         r.append(TH(value))
 127                 t.append(r)
 128                 nodes = lb2hn[loginbase]
 129                 hostnames = [ n['hostname'] for n in nodes ]
 130                 hostnames.sort()
 131
 132                 for host in hostnames:
 133                         r = TR()
 134                         color = state_to_color(fb['nodes'][host]['values']['state'])
 135                         url = 'http://www.planet-lab.org/db/nodes/index.php?nodepattern=%s' % host
 136                         td = TD(A(host, target='_blank', href=url), bgcolor=color)
 137                         r.append(td)
 138                         lc = pf[host].last_changed
 139                         td = TD(diff_time(lc))
 140                         r.append(td)
 141                         t.append(r)
 142
 143         #d = Document(t)
 144         print CENTER(t)
 145
 146 if __name__ == "__main__":
 147         main()