html/cgi-bin/memory.cgi

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2005-2010  IPFire Team                                        #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 use strict;
  23
  24 # enable only the following on debugging purpose
  25 #use warnings;
  26 #use CGI::Carp 'fatalsToBrowser';
  27
  28 require '/var/ipfire/general-functions.pl';
  29 require "${General::swroot}/lang.pl";
  30 require "${General::swroot}/header.pl";
  31 require "${General::swroot}/graphs.pl";
  32
  33 my %color = ();
  34 my %mainsettings = ();
  35 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
  36 &General::readhash("/srv/web/ipfire/html/themes/ipfire/include/colors.txt", \%color);
  37
  38 &Header::showhttpheaders();
  39 &Header::openpage($Lang::tr{'memory information'}, 1, '');
  40 &Header::openbigbox('100%', 'left');
  41
  42 &Header::openbox('100%', 'center', "Memory $Lang::tr{'graph'}");
  43 &Graphs::makegraphbox("memory.cgi","memory","day");
  44 &Header::closebox();
  45
  46 if (-f "$mainsettings{'RRDLOG'}/collectd/localhost/swap") {
  47         &Header::openbox('100%', 'center', "Swap $Lang::tr{'graph'}");
  48         &Graphs::makegraphbox("memory.cgi","swap","day");
  49         &Header::closebox();
  50 }
  51
  52 &Header::openbox('100%', 'center', $Lang::tr{'memory'});
  53 print "<table width='95%' cellspacing='5'>";
  54 my $size=0;
  55 my $used=0;
  56 my $free=0;
  57 my $percent=0;
  58 my $shared=0;
  59 my $buffers=0;
  60 my $cached=0;
  61 my $available=0;
  62
  63 # output format: kibibytes, wide mode (buffers and cache in two columns)
  64 open(my $cmd_fh, "-|", '/usr/bin/free -k -w') or die $!;
  65 while(<$cmd_fh>){
  66         if ($_ =~ m/^\s+total\s+used\s+free\s+shared\s+buffers\s+cache\s+available$/ ){
  67                 print <<END
  68 <tr>
  69         <td align='center'>&nbsp;</td>
  70         <td align='center' class='boldbase'><b>$Lang::tr{'size'}</b></td>
  71         <td align='center' class='boldbase'><b>$Lang::tr{'used'}</b></td>
  72         <td align='center' class='boldbase'><b>$Lang::tr{'free'}</b></td>
  73         <td align='left' class='boldbase' colspan='2'><b>$Lang::tr{'percentage'}</b></td>
  74 </tr>
  75 END
  76 ;
  77         }else{
  78                 if ($_ =~ m/^Mem:\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/){
  79                         ($size,$used,$free,$shared,$buffers,$cached,$available) = ($1,$2,$3,$4,$5,$6,$7);
  80                         ($percent = ($used/$size)*100) =~ s/^(\d+)(\.\d+)?$/$1%/;
  81                         print <<END
  82 <tr>
  83         <td class='boldbase'><b>$Lang::tr{'ram'}</b></td>
  84 END
  85 ;
  86                 }elsif($_ =~ m/^Swap:\s+(\d+)\s+(\d+)\s+(\d+)$/){
  87                         ($size,$used,$free) = ($1,$2,$3);
  88                         if ($size != 0){
  89                                 ($percent = ($used/$size)*100) =~ s/^(\d+)(\.\d+)?$/$1%/;
  90                         }else{
  91                                 ($percent = '');
  92                         }
  93                         print <<END
  94 <tr>
  95         <td class='boldbase'><b>$Lang::tr{'swap'}</b></td>
  96 END
  97 ;
  98                 }
  99                 print <<END
 100         <td align='center'>$size KiB</td>
 101         <td align='center'>$used KiB</td>
 102         <td align='center'>$free KiB</td>
 103         <td>
 104 END
 105 ;
 106                 &percentbar($percent);
 107                 print <<END
 108 </td>
 109         <td align='left'>$percent</td>
 110 </tr>
 111 END
 112 ;
 113         }
 114 }
 115 close($cmd_fh);
 116 print <<END
 117 <tr><td colspan='6'><br /></td></tr>
 118 <tr><td class='boldbase'><b>$Lang::tr{'shared'}</b></td><td align='center'>$shared KiB</td></tr>
 119 <tr><td class='boldbase'><b>$Lang::tr{'buffers'}</b></td><td align='center'>$buffers KiB</td></tr>
 120 <tr><td class='boldbase'><b>$Lang::tr{'cached'}</b></td><td align='center'>$cached KiB</td></tr>
 121 <tr><td class='boldbase'><b>$Lang::tr{'available'}</b></td><td align='center'>$available KiB</td></tr>
 122 </table>
 123 END
 124 ;
 125 &Header::closebox();
 126
 127 &Header::closebigbox();
 128 &Header::closepage();
 129
 130 sub percentbar{
 131         my $percent = $_[0];
 132         my $fg = '#a0a0a0';
 133         my $bg = '#e2e2e2';
 134
 135         if ($percent =~ m/^(\d+)%$/ ){
 136                 print <<END
 137 <table width='100' border='1' cellspacing='0' cellpadding='0' style='border-width:1px;border-style:solid;border-color:$fg;width:100px;height:10px;'>
 138 <tr>
 139 END
 140 ;
 141                 if ($percent eq "100%"){
 142                         print "<td width='100%' bgcolor='$fg' style='background-color:$fg;border-style:solid;border-width:1px;border-color:$bg'>";
 143                 }elsif($percent eq "0%"){
 144                         print "<td width='100%' bgcolor='$bg' style='background-color:$bg;border-style:solid;border-width:1px;border-color:$bg'>";
 145                 }else{
 146                         print "<td width='$percent' bgcolor='$fg' style='background-color:$fg;border-style:solid;border-width:1px;border-color:$bg'></td><td width='" . (100-$1) . "%' bgcolor='$bg' style='background-color:$bg;border-style:solid;border-width:1px;border-color:$bg'>";
 147                 }
 148                 print <<END
 149 <img src='/images/null.gif' width='1' height='1' alt='' /></td></tr></table>
 150 END
 151 ;
 152         }
 153 }