html/cgi-bin/remote.cgi

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007  Michael Tremer & Christian Schmidt                      #
   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
  32 my %remotesettings=();
  33 my %checked=();
  34 my $errormessage='';
  35 my $counter = 0;
  36
  37 &Header::showhttpheaders();
  38
  39 $remotesettings{'ENABLE_SSH'} = 'off';
  40 $remotesettings{'ENABLE_SSH_PROTOCOL1'} = 'off';
  41 $remotesettings{'ENABLE_SSH_PORTFW'} = 'off';
  42 $remotesettings{'ACTION'} = '';
  43 &Header::getcgihash(\%remotesettings);
  44
  45 if ( (($remotesettings{'ACTION'} eq $Lang::tr{'save'}) || ($remotesettings{'ACTION'} eq $Lang::tr{'ssh tempstart15'}) || ($remotesettings{'ACTION'} eq $Lang::tr{'ssh tempstart30'})) && $remotesettings{'ACTION'} ne "" )
  46 {
  47         # not existing here indicates the box is unticked
  48         $remotesettings{'ENABLE_SSH_PASSWORDS'} = 'off' unless exists $remotesettings{'ENABLE_SSH_PASSWORDS'};
  49         $remotesettings{'ENABLE_SSH_KEYS'} = 'off' unless exists $remotesettings{'ENABLE_SSH_KEYS'};
  50
  51
  52         &General::writehash("${General::swroot}/remote/settings", \%remotesettings);
  53         if ($remotesettings{'ENABLE_SSH'} eq 'on')
  54         {
  55                 &General::log($Lang::tr{'ssh is enabled'});
  56                 if  ($remotesettings{'ENABLE_SSH_PASSWORDS'} eq 'off'
  57                  and $remotesettings{'ENABLE_SSH_KEYS'}      eq 'off')
  58                 {
  59                         $errormessage = $Lang::tr{'ssh no auth'};
  60                 }
  61                 system ('/usr/bin/touch', "${General::swroot}/remote/enablessh");
  62         }
  63         else
  64         {
  65                 &General::log($Lang::tr{'ssh is disabled'});
  66                 unlink "${General::swroot}/remote/enablessh";
  67         }
  68
  69         if ($remotesettings{'ENABLE_SSH_PROTOCOL1'} eq 'on')
  70         {
  71                 &General::log($Lang::tr{'ssh1 enabled'});
  72         }
  73         else
  74         {
  75                 &General::log($Lang::tr{'ssh1 disabled'});
  76         }
  77 if ( $remotesettings{'ACTION'} eq $Lang::tr{'ssh tempstart15'} || $remotesettings{'ACTION'} eq $Lang::tr{'ssh tempstart30'} ){
  78         if ($remotesettings{'ENABLE_SSH'} eq 'off')
  79         {
  80                         system ('/usr/bin/touch', "${General::swroot}/remote/enablessh");
  81                         system('/usr/local/bin/sshctrl');
  82         }
  83   if ( $remotesettings{'ACTION'} eq $Lang::tr{'ssh tempstart15'} ) { $counter = 900;}
  84   elsif ( $remotesettings{'ACTION'} eq $Lang::tr{'ssh tempstart30'} ) { $counter = 1800;}
  85
  86   system("/usr/local/bin/sshctrl tempstart $counter >/dev/null");
  87  }
  88 else {
  89         system('/usr/local/bin/sshctrl') == 0
  90                 or $errormessage = "$Lang::tr{'bad return code'} " . $?/256;
  91  }
  92 }
  93
  94 &General::readhash("${General::swroot}/remote/settings", \%remotesettings);
  95
  96 # not existing here means they're undefined and the default value should be
  97 # used
  98         $remotesettings{'ENABLE_SSH_PASSWORDS'} = 'on' unless exists $remotesettings{'ENABLE_SSH_PASSWORDS'};
  99         $remotesettings{'ENABLE_SSH_KEYS'} = 'on' unless exists $remotesettings{'ENABLE_SSH_KEYS'};
 100
 101 $checked{'ENABLE_SSH'}{'off'} = '';
 102 $checked{'ENABLE_SSH'}{'on'} = '';
 103 $checked{'ENABLE_SSH'}{$remotesettings{'ENABLE_SSH'}} = "checked='checked'";
 104 $checked{'ENABLE_SSH_PROTOCOL1'}{'off'} = '';
 105 $checked{'ENABLE_SSH_PROTOCOL1'}{'on'} = '';
 106 $checked{'ENABLE_SSH_PROTOCOL1'}{$remotesettings{'ENABLE_SSH_PROTOCOL1'}} = "checked='checked'";
 107 $checked{'ENABLE_SSH_PORTFW'}{'off'} = '';
 108 $checked{'ENABLE_SSH_PORTFW'}{'on'} = '';
 109 $checked{'ENABLE_SSH_PORTFW'}{$remotesettings{'ENABLE_SSH_PORTFW'}} = "checked='checked'";
 110 $checked{'ENABLE_SSH_PASSWORDS'}{'off'} = '';
 111 $checked{'ENABLE_SSH_PASSWORDS'}{'on'} = '';
 112 $checked{'ENABLE_SSH_PASSWORDS'}{$remotesettings{'ENABLE_SSH_PASSWORDS'}} = "checked='checked'";
 113 $checked{'ENABLE_SSH_KEYS'}{'off'} = '';
 114 $checked{'ENABLE_SSH_KEYS'}{'on'} = '';
 115 $checked{'ENABLE_SSH_KEYS'}{$remotesettings{'ENABLE_SSH_KEYS'}} = "checked='checked'";
 116
 117
 118 &Header::openpage($Lang::tr{'remote access'}, 1, '');
 119
 120 &Header::openbigbox('100%', 'left', '', $errormessage);
 121
 122 if ($errormessage) {
 123         &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 124         print "<FONT CLASS='base'>$errormessage&nbsp;</FONT>\n";
 125         &Header::closebox();
 126 }
 127
 128 print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n";
 129
 130 &Header::openbox('100%', 'left', 'SSH:');
 131 print <<END
 132 <table width='100%'>
 133 <tr>
 134         <td><input type='checkbox' name='ENABLE_SSH' $checked{'ENABLE_SSH'}{'on'} /></td>
 135         <td class='base' colspan='2'>$Lang::tr{'ssh access'}</td>
 136 </tr>
 137 <tr>
 138         <td>&nbsp;</td>
 139         <td><input type='checkbox' name='ENABLE_SSH_PROTOCOL1' $checked{'ENABLE_SSH_PROTOCOL1'}{'on'} /></td>
 140         <td width='100%' class='base'>$Lang::tr{'ssh1 support'}</td>
 141 </tr>
 142 <tr>
 143         <td>&nbsp;</td>
 144         <td><input type='checkbox' name='ENABLE_SSH_PORTFW' $checked{'ENABLE_SSH_PORTFW'}{'on'} /></td>
 145         <td width='100%' class='base'>$Lang::tr{'ssh portfw'}</td>
 146 </tr>
 147 <tr>
 148         <td>&nbsp;</td>
 149         <td><input type='checkbox' name='ENABLE_SSH_PASSWORDS' $checked{'ENABLE_SSH_PASSWORDS'}{'on'} /></td>
 150         <td width='100%' class='base'>$Lang::tr{'ssh passwords'}</td>
 151 </tr>
 152 <tr>
 153         <td>&nbsp;</td>
 154         <td><input type='checkbox' name='ENABLE_SSH_KEYS' $checked{'ENABLE_SSH_KEYS'}{'on'} /></td>
 155         <td width='100%' class='base'>$Lang::tr{'ssh keys'}</td>
 156 </tr>
 157 <tr>
 158         <td align='center' colspan='3'><hr />
 159         <input type='submit' name='ACTION' value='$Lang::tr{'ssh tempstart15'}' />
 160         <input type='submit' name='ACTION' value='$Lang::tr{'ssh tempstart30'}' />
 161         <input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
 162 </tr>
 163 </table>
 164 END
 165 ;
 166 &Header::closebox();
 167
 168 print "</form>\n";
 169
 170 &Header::openbox('100%', 'left', $Lang::tr{'ssh host keys'});
 171
 172 print "<table>\n";
 173
 174 print <<END
 175 <tr><td class='boldbase'><b>$Lang::tr{'ssh key'}</b></td>
 176     <td class='boldbase'><b>$Lang::tr{'ssh fingerprint'}</b></td>
 177     <td class='boldbase'><b>$Lang::tr{'ssh key size'}</b></td></tr>
 178 END
 179 ;
 180
 181 &viewkey("/etc/ssh/ssh_host_key.pub","RSA1");
 182 &viewkey("/etc/ssh/ssh_host_rsa_key.pub","RSA2");
 183 &viewkey("/etc/ssh/ssh_host_dsa_key.pub","DSA");
 184
 185 print "</table>\n";
 186
 187 &Header::closebox();
 188
 189 &Header::closebigbox();
 190
 191 &Header::closepage();
 192
 193
 194 sub viewkey
 195 {
 196   my $key = $_[0];
 197   my $name = $_[1];
 198
 199   if ( -e $key )
 200   {
 201     my @temp = split(/ /,`/usr/bin/ssh-keygen -l -f $key`);
 202     my $keysize = &Header::cleanhtml($temp[0],"y");
 203     my $fingerprint = &Header::cleanhtml($temp[1],"y");
 204     print "<tr><td>$key ($name)</td><td><code>$fingerprint</code></td><td align='center'>$keysize</td></tr>\n";
 205   }
 206 }