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 my @querry = split(/\?/,$ENV{'QUERY_STRING'});
  39 $querry[0] = '' unless defined $querry[0];
  40 $querry[1] = 'hour' unless defined $querry[1];
  41
  42 if ( $querry[0] =~ "memory"){
  43         print "Content-type: image/png\n\n";
  44         binmode(STDOUT);
  45         &Graphs::updatememorygraph($querry[1]);
  46 }elsif ( $querry[0] =~ "swap"){
  47         print "Content-type: image/png\n\n";
  48         binmode(STDOUT);
  49         &Graphs::updateswapgraph($querry[1]);
  50 }else{
  51         &Header::showhttpheaders();
  52         &Header::openpage($Lang::tr{'memory information'}, 1, '');
  53         &Header::openbigbox('100%', 'left');
  54
  55         &Header::openbox('100%', 'center', "Memory $Lang::tr{'graph'}");
  56         &Graphs::makegraphbox("memory.cgi","memory","day");
  57         &Header::closebox();
  58
  59         if (-f "$mainsettings{'RRDLOG'}/collectd/localhost/swap") {
  60             &Header::openbox('100%', 'center', "Swap $Lang::tr{'graph'}");
  61             &Graphs::makegraphbox("memory.cgi","swap","day");
  62             &Header::closebox();
  63         }
  64
  65         &Header::openbox('100%', 'center', $Lang::tr{'memory'});
  66         print "<table width='95%' cellspacing='5'>";
  67         my $size=0;
  68         my $used=0;
  69         my $free=0;
  70         my $percent=0;
  71         my $shared=0;
  72         my $buffers=0;
  73         my $cached=0;
  74         my $available=0;
  75
  76         # output format: kibibytes, wide mode (buffers and cache in two columns)
  77         open(my $cmd_fh, "-|", '/usr/bin/free -k -w') or die $!;
  78         while(<$cmd_fh>){
  79                 if ($_ =~ m/^\s+total\s+used\s+free\s+shared\s+buffers\s+cache\s+available$/ ){
  80                         print <<END
  81 <tr>
  82 <td align='center'>&nbsp;</td>
  83 <td align='center' class='boldbase'><b>$Lang::tr{'size'}</b></td>
  84 <td align='center' class='boldbase'><b>$Lang::tr{'used'}</b></td>
  85 <td align='center' class='boldbase'><b>$Lang::tr{'free'}</b></td>
  86 <td align='left' class='boldbase' colspan='2'><b>$Lang::tr{'percentage'}</b></td>
  87 </tr>
  88 END
  89 ;
  90                 }else{
  91                         if ($_ =~ m/^Mem:\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/){
  92                                 ($size,$used,$free,$shared,$buffers,$cached,$available) = ($1,$2,$3,$4,$5,$6,$7);
  93                                 ($percent = ($used/$size)*100) =~ s/^(\d+)(\.\d+)?$/$1%/;
  94                                 print <<END
  95 <tr>
  96 <td class='boldbase'><b>$Lang::tr{'ram'}</b></td>
  97 END
  98 ;
  99                         }elsif($_ =~ m/^Swap:\s+(\d+)\s+(\d+)\s+(\d+)$/){
 100                                 ($size,$used,$free) = ($1,$2,$3);
 101                                 if ($size != 0){
 102                                         ($percent = ($used/$size)*100) =~ s/^(\d+)(\.\d+)?$/$1%/;
 103                                 }else{
 104                                         ($percent = '');
 105                                 }
 106                                 print <<END
 107 <tr>
 108 <td class='boldbase'><b>$Lang::tr{'swap'}</b></td>
 109 END
 110 ;
 111                         }
 112                         print <<END
 113 <td align='center'>$size KiB</td>
 114 <td align='center'>$used KiB</td>
 115 <td align='center'>$free KiB</td>
 116 <td>
 117 END
 118 ;
 119                         &percentbar($percent);
 120                         print <<END
 121 </td>
 122 <td align='left'>$percent</td>
 123 </tr>
 124 END
 125 ;
 126                 }
 127         }
 128         close($cmd_fh);
 129         print <<END
 130 <tr><td colspan='6'><br /></td></tr>
 131 <tr><td class='boldbase'><b>$Lang::tr{'shared'}</b></td><td align='center'>$shared KiB</td></tr>
 132 <tr><td class='boldbase'><b>$Lang::tr{'buffers'}</b></td><td align='center'>$buffers KiB</td></tr>
 133 <tr><td class='boldbase'><b>$Lang::tr{'cached'}</b></td><td align='center'>$cached KiB</td></tr>
 134 <tr><td class='boldbase'><b>$Lang::tr{'available'}</b></td><td align='center'>$available KiB</td></tr>
 135 </table>
 136 END
 137 ;
 138         &Header::closebox();
 139
 140         &Header::closebigbox();
 141         &Header::closepage();
 142 }
 143
 144 sub percentbar{
 145         my $percent = $_[0];
 146         my $fg = '#a0a0a0';
 147         my $bg = '#e2e2e2';
 148
 149         if ($percent =~ m/^(\d+)%$/ ){
 150                 print <<END
 151 <table width='100' border='1' cellspacing='0' cellpadding='0' style='border-width:1px;border-style:solid;border-color:$fg;width:100px;height:10px;'>
 152 <tr>
 153 END
 154 ;
 155                 if ($percent eq "100%"){
 156                         print "<td width='100%' bgcolor='$fg' style='background-color:$fg;border-style:solid;border-width:1px;border-color:$bg'>";
 157                 }elsif($percent eq "0%"){
 158                         print "<td width='100%' bgcolor='$bg' style='background-color:$bg;border-style:solid;border-width:1px;border-color:$bg'>";
 159                 }else{
 160                         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'>";
 161                 }
 162                 print <<END
 163 <img src='/images/null.gif' width='1' height='1' alt='' /></td></tr></table>
 164 END
 165 ;
 166         }
 167 }