html/cgi-bin/captive.cgi

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2016  IPFire Team  <alexander.marx@ipfire.org>                #
   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 use HTML::Entities();
  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 unless (-e "${General::swroot}/captive/settings")       { system("touch ${General::swroot}/captive/settings"); }
  32 my %settings=();
  33 my %mainsettings;
  34 my %color;
  35 my %cgiparams=();
  36 my %netsettings=();
  37 my %checked=();
  38 my $errormessage='';
  39 my $voucherout="${General::swroot}/captive/voucher_out";
  40 my $clients="${General::swroot}/captive/clients";
  41 my %voucherhash=();
  42 my %clientshash=();
  43 my $settingsfile="${General::swroot}/captive/settings";
  44
  45 unless (-e $voucherout) { system("touch $voucherout"); }
  46
  47 &Header::getcgihash(\%cgiparams);
  48
  49 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
  50 &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
  51 &General::readhash("$settingsfile", \%settings) if(-f $settingsfile);
  52 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
  53
  54 &Header::showhttpheaders();
  55
  56 #actions
  57 if ($cgiparams{'ACTION'} eq "$Lang::tr{'save'}"){
  58         #saves the Captiveportal settings to disk
  59         if ($cgiparams{'UNLIMITED'} eq 'on'){
  60                 $cgiparams{'EXP_HOUR'}  = '0';
  61                 $cgiparams{'EXP_DAY'}   = '0';
  62                 $cgiparams{'EXP_WEEK'}  = '0';
  63                 $cgiparams{'EXP_MONTH'} = '0';
  64         }
  65
  66         $settings{'ENABLE_GREEN'}               = $cgiparams{'ENABLE_GREEN'};
  67         $settings{'ENABLE_BLUE'}                = $cgiparams{'ENABLE_BLUE'};
  68         $settings{'AUTH'}                               = $cgiparams{'AUTH'};
  69         $settings{'EXPIRE'}                             = $cgiparams{'EXP_HOUR'}+$cgiparams{'EXP_DAY'}+$cgiparams{'EXP_WEEK'}+$cgiparams{'EXP_MONTH'};
  70         $settings{'EXP_HOUR'}                   = $cgiparams{'EXP_HOUR'};
  71         $settings{'EXP_DAY'}                    = $cgiparams{'EXP_DAY'};
  72         $settings{'EXP_WEEK'}                   = $cgiparams{'EXP_WEEK'};
  73         $settings{'EXP_MONTH'}                  = $cgiparams{'EXP_MONTH'};
  74         $settings{'TITLE'}                              = $cgiparams{'TITLE'};
  75         $settings{'UNLIMITED'}                  = $cgiparams{'UNLIMITED'};
  76         &General::writehash("$settingsfile", \%settings);
  77
  78         #write Licensetext if defined
  79         if ($cgiparams{'AGB'}){
  80                 $cgiparams{'AGB'} = &Header::escape($cgiparams{'AGB'});
  81                 open( FH, ">:utf8", "/var/ipfire/captive/agb.txt" ) or die("$!");
  82                 print FH $cgiparams{'AGB'};
  83                 close( FH );
  84                 $cgiparams{'AGB'}="";
  85         }
  86         #execute binary to reload firewall rules
  87         system("/usr/local/bin/captivectrl");
  88 }
  89
  90 if ($cgiparams{'ACTION'} eq "$Lang::tr{'Captive voucherout'}"){
  91         #generates a voucher and writes it to /var/ipfire/voucher_out
  92
  93         #check if we already have a voucher with same code
  94         &General::readhasharray("$voucherout", \%voucherhash);
  95         foreach my $key (keys %voucherhash) {
  96                 if($voucherhash{$key}[1] eq $cgiparams{'CODE'}){
  97                         $errormessage=$Lang::tr{'Captive err doublevoucher'};
  98                         last;
  99                 }
 100         }
 101
 102         #check valid remark
 103         if ($cgiparams{'REMARK'} ne '' && !&validremark($cgiparams{'REMARK'})){
 104                 $errormessage=$Lang::tr{'fwhost err remark'};
 105         }
 106
 107         #if no error detected, write to disk
 108         if (!$errormessage){
 109                 my $date=time(); #seconds in utc
 110
 111                 #first get new key from hash
 112                 my $key=&General::findhasharraykey (\%voucherhash);
 113                 #initialize all fields with ''
 114                 foreach my $i (0 .. 3) { $voucherhash{$key}[$i] = "";}
 115                 #define fields
 116                 $voucherhash{$key}[0] = $date;
 117                 $voucherhash{$key}[1] = $cgiparams{'CODE'};
 118                 $voucherhash{$key}[2] = $settings{'EXPIRE'};
 119                 $voucherhash{$key}[3] = $cgiparams{'REMARK'};
 120                 #write values to disk
 121                 &General::writehasharray("$voucherout", \%voucherhash);
 122
 123                 #now prepare log entry, get expiring date for voucher and decode remark for logfile
 124                 my $expdate=localtime(time()+$voucherhash{$key}[3]);
 125                 my $rem=HTML::Entities::decode_entities($voucherhash{$key}[4]);
 126
 127                 #write logfile entry
 128                 &General::log("Captive", "Generated new voucher $voucherhash{$key}[1] $voucherhash{$key}[2] hours valid expires on $expdate remark $rem");
 129         }
 130 }
 131
 132 if ($cgiparams{'ACTION'} eq 'delvoucherout'){
 133         #deletes an already generated but unused voucher
 134
 135         #read all generated vouchers
 136         &General::readhasharray("$voucherout", \%voucherhash);
 137         foreach my $key (keys %voucherhash) {
 138                 if($cgiparams{'key'} eq $voucherhash{$key}[0]){
 139                         #write logenty with decoded remark
 140                         my $rem=HTML::Entities::decode_entities($voucherhash{$key}[4]);
 141                         &General::log("Captive", "Delete unused voucher $voucherhash{$key}[1] $voucherhash{$key}[2] hours valid expires on $voucherhash{$key}[3] remark $rem");
 142                         #delete line from hash
 143                         delete $voucherhash{$key};
 144                         last;
 145                 }
 146         }
 147         #write back hash
 148         &General::writehasharray("$voucherout", \%voucherhash);
 149 }
 150
 151 if ($cgiparams{'ACTION'} eq 'delvoucherinuse'){
 152         #delete voucher and connection in use
 153
 154         #read all active clients
 155         &General::readhasharray("$clients", \%clientshash);
 156         foreach my $key (keys %clientshash) {
 157                 if($cgiparams{'key'} eq $clientshash{$key}[0]){
 158                         #prepare log entry with decoded remark
 159                         my $rem=HTML::Entities::decode_entities($clientshash{$key}[7]);
 160                         #write logentry
 161                         &General::log("Captive", "Delete voucher in use $clientshash{$key}[1] $clientshash{$key}[2] hours valid expires on $clientshash{$key}[3] remark $rem - Connection will be terminated");
 162                         #delete line from hash
 163                         delete $clientshash{$key};
 164                         last;
 165                 }
 166         }
 167         #write back hash
 168         &General::writehasharray("$clients", \%clientshash);
 169         #reload firewallrules to kill connection of client
 170         system("/usr/local/bin/captivectrl");
 171 }
 172
 173 #open webpage, print header and open box
 174 &Header::openpage($Lang::tr{'Captive menu'}, 1, '');
 175 &Header::openbigbox();
 176
 177 #call error() to see if we have to print an errormessage on website
 178 &error();
 179
 180 #call config() to display the configuration box
 181 &config();
 182
 183 sub getagb(){
 184         #open textfile from /var/ipfire/captive/agb.txt
 185         open( my $handle, "<:utf8", "/var/ipfire/captive/agb.txt" ) or die("$!");
 186                 while(<$handle>){
 187                         #read line by line and print on screen
 188                         $cgiparams{'AGB'}.= HTML::Entities::decode_entities($_);
 189                 }
 190         close( $handle );
 191 }
 192
 193 sub config(){
 194         #prints the config box on the website
 195         &Header::openbox('100%', 'left', $Lang::tr{'Captive config'});
 196         print <<END
 197                 <form method='post' action='$ENV{'SCRIPT_NAME'}'>\n
 198                 <table width='100%' border="0">
 199                 <tr>
 200 END
 201 ;
 202         #check which parameters have to be enabled (from settings file)
 203         $checked{'ENABLE_GREEN'}{'off'} = '';
 204         $checked{'ENABLE_GREEN'}{'on'} = '';
 205         $checked{'ENABLE_GREEN'}{$settings{'ENABLE_GREEN'}} = "checked='checked'";
 206
 207         $checked{'ENABLE_BLUE'}{'off'} = '';
 208         $checked{'ENABLE_BLUE'}{'on'} = '';
 209         $checked{'ENABLE_BLUE'}{$settings{'ENABLE_BLUE'}} = "checked='checked'";
 210
 211         $checked{'UNLIMITED'}{'off'} = '';
 212         $checked{'UNLIMITED'}{'on'} = '';
 213         $checked{'UNLIMITED'}{$settings{'UNLIMITED'}} = "checked='checked'";
 214
 215         if ($netsettings{'GREEN_DEV'}){
 216                 print "<td width='30%'>$Lang::tr{'Captive active on'} <font color='$Header::colourgreen'>Green</font></td><td><input type='checkbox' name='ENABLE_GREEN' $checked{'ENABLE_GREEN'}{'on'} /></td></tr>";
 217         }
 218         if ($netsettings{'BLUE_DEV'}){
 219                 print "<td width='30%'>$Lang::tr{'Captive active on'} <font color='$Header::colourblue'>Blue</font></td><td><input type='checkbox' name='ENABLE_BLUE' $checked{'ENABLE_BLUE'}{'on'} /></td></tr>";
 220         }
 221
 222         print<<END
 223                 </tr>
 224                 <tr>
 225                 <td><br>
 226                         $Lang::tr{'Captive title'}
 227                 </td>
 228                 <td><br>
 229                         <input type='text' name='TITLE' value="$settings{'TITLE'}" size='40'>
 230                 </td>
 231                 </tr>
 232 END
 233 ;
 234
 235 print<<END
 236                 <tr>
 237                         <td>
 238                                 $Lang::tr{'Captive authentication'}
 239                         </td>
 240                         <td>
 241                                 <select name='AUTH' style='width:8em;'>
 242 END
 243 ;
 244         print "<option value='LICENSE' ";
 245         print " selected='selected'" if ($settings{'AUTH'} eq 'LICENSE');
 246         print ">$Lang::tr{'Captive auth_lic'}</option>";
 247
 248         print "<option value='VOUCHER' ";
 249         print " selected='selected'" if ($settings{'AUTH'} eq 'VOUCHER');
 250         print ">$Lang::tr{'Captive auth_vou'}</option>";
 251
 252         print<<END
 253                                 </select>
 254                         </td>
 255                 </tr>
 256 END
 257 ;
 258
 259         if($settings{'AUTH'} eq 'LICENSE'){
 260                 &agbbox();
 261         }
 262
 263         print"<tr><td>$Lang::tr{'Captive vouchervalid'}</td><td>";
 264
 265         print "<br><table border='0' with=100%>";
 266         print "<th>$Lang::tr{'hours'}</th><th>$Lang::tr{'days'}</th><th>$Lang::tr{'weeks'}</th><th>$Lang::tr{'months'}</th>";
 267
 268         #print hour-dropdownbox
 269         my $hrs=3600;
 270         print "<tr><td><select name='EXP_HOUR' style='width:8em;'>";
 271         print "<option value='0' ";
 272         print " selected='selected'" if ($settings{'EXP_HOUR'} eq '0');
 273         print ">--</option>";
 274         for (my $i = 1; $i<25; $i++){
 275                 my $exp_sec = $i * $hrs;
 276                 print "<option value='$exp_sec' ";
 277                 print " selected='selected'" if ($settings{'EXP_HOUR'} eq $exp_sec);
 278                 print ">$i</option>";
 279         }
 280         print "</td><td>";
 281
 282         #print day-dropdownbox
 283         my $days=3600*24;
 284         print "<select name='EXP_DAY' style='width:8em;'>";
 285         print "<option value='0' ";
 286         print " selected='selected'" if ($settings{'EXP_DAY'} eq '0');
 287         print ">--</option>";
 288         for (my $i = 1; $i<8; $i++){
 289                 my $exp_sec = $i * $days;
 290                 print "<option value='$exp_sec' ";
 291                 print " selected='selected'" if ($settings{'EXP_DAY'} eq $exp_sec);
 292                 print ">$i</option>";
 293         }
 294         print "</td><td>";
 295
 296         #print week-dropdownbox
 297         my $week=3600*24*7;
 298         print "<select name='EXP_WEEK' style='width:8em;'>";
 299         print "<option value='0' ";
 300         print " selected='selected'" if ($settings{'EXP_WEEK'} eq '0');
 301         print ">--</option>";
 302         for (my $i = 1; $i<5; $i++){
 303                 my $exp_sec = $i * $week;
 304                 print "<option value='$exp_sec' ";
 305                 print " selected='selected'" if ($settings{'EXP_WEEK'} eq $exp_sec);
 306                 print ">$i</option>";
 307         }
 308         print "</td><td>";
 309
 310         #print month-dropdownbox
 311         my $month=3600*24*30;
 312         print "<select name='EXP_MONTH' style='width:8em;'>";
 313         print "<option value='0' ";
 314         print " selected='selected'" if ($settings{'EXP_MONTH'} eq '0');
 315         print ">--</option>";
 316         for (my $i = 1; $i<13; $i++){
 317                 my $exp_sec = $i * $month;
 318                 print "<option value='$exp_sec' ";
 319                 print " selected='selected'" if ($settings{'EXP_MONTH'} eq $exp_sec);
 320                 print ">$i</option>";
 321         }
 322         print "</td>";
 323
 324         print "<td>&nbsp;&nbsp;&nbsp;<input type='checkbox' name='UNLIMITED' $checked{'UNLIMITED'}{'on'} /></td><td>&nbsp;<b>$Lang::tr{'Captive nolimit'}</b></td>";
 325
 326         print "</tr></table>";
 327
 328 print<<END
 329                 <tr>
 330                         <td>
 331                         </td>
 332                         <td align='right'>
 333                         <input type='submit' name='ACTION' value="$Lang::tr{'save'}"/>
 334                         </td>
 335                 </tr>
 336                 </table>
 337                 <br><br>
 338 END
 339 ;
 340         print "</form>";
 341
 342         &Header::closebox();
 343
 344         #if settings is set to use vouchers, the voucher part has to be displayed
 345         if ($settings{'AUTH'} eq 'VOUCHER'){
 346                 &voucher();
 347         }else{
 348                 #otherwise we show the licensepart
 349                 &show_license_connections();
 350         }
 351 }
 352
 353 sub agbbox(){
 354         &getagb();
 355 print<<END
 356         <tr>
 357                 <td>
 358                         License agreement
 359                 </td>
 360                 <td>
 361                         <br>
 362                         <textarea cols="50" rows="10" name="AGB">$cgiparams{'AGB'}</textarea>
 363                 </td>
 364         </tr>
 365 END
 366 ;
 367 }
 368
 369 sub gencode(){
 370         #generate a random code only letters from A-Z except 'O'  and 0-9
 371         my @chars = ("A".."N", "P".."Z", "0".."9");
 372         my $randomstring;
 373         $randomstring .= $chars[rand @chars] for 1..8;
 374         return $randomstring;
 375 }
 376
 377 sub voucher(){
 378         #show voucher part
 379         #calculate expiredate
 380         my $expire;
 381         if ($settings{'UNLIMITED'} eq 'on'){
 382                 $expire = $Lang::tr{'Captive nolimit'};
 383         }else{
 384                 $expire = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime(time()+$settings{'EXPIRE'}));
 385     }
 386
 387         &Header::openbox('100%', 'left', $Lang::tr{'Captive voucher'});
 388 print<<END
 389         <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 390         <table class='tbl'>
 391         <tr>
 392                 <th align='center' width='20%'>$Lang::tr{'Captive voucher'}</th><th th align='center' width='25%'>$Lang::tr{'Captive expire'}</th><th align='center' width='55%'>$Lang::tr{'remark'}</th></tr>
 393 END
 394 ;
 395
 396         $cgiparams{'CODE'} = &gencode();
 397         print "<tr><td><center><b><font size='5'>$cgiparams{'CODE'}</font></b></center></td><td><center><font size='3'>$expire</font></center></td><td><input type='text' name='REMARK' align='left' size='80'></td></tr>";
 398         print "</table><br>";
 399         print "<center><input type='submit' name='ACTION' value='$Lang::tr{'Captive voucherout'}'><input type='hidden' name='CODE' value='$cgiparams{'CODE'}'</center></form>";
 400         &Header::closebox();
 401         if (! -z $voucherout) { &show_voucher_out();}
 402         if (! -z $clients) { &show_voucher_in_use();}
 403 }
 404
 405 sub show_license_connections(){
 406         #if there are active clients, show the box with active connections
 407         return if ( -z $clients || ! -f $clients );
 408         my $count=0;
 409         my $col;
 410         &Header::openbox('100%', 'left', $Lang::tr{'Captive voactive'});
 411 print<<END
 412                 <center><table class='tbl'>
 413                 <tr>
 414                         <th align='center' width='15%'>$Lang::tr{'Captive voucher'}</th><th th align='center' width='15%'>$Lang::tr{'Captive activated'}</th><th th align='center' width='15%'>$Lang::tr{'Captive expire'}</th><th align='center' width='50%'><font size='1'>$Lang::tr{'Captive mac'}</th><th th align='center' width='5%'>$Lang::tr{'delete'}</th></tr>
 415 END
 416 ;
 417         #read all clients from hash and show table
 418         &General::readhasharray("$clients", \%clientshash);
 419         foreach my $key (keys %clientshash){
 420                 my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($clientshash{$key}[2]));
 421                 my $endtime;
 422                 if ($clientshash{$key}[3] eq '0'){
 423                         $endtime=$Lang::tr{'Captive nolimit'};
 424                 }else{
 425                         $endtime=sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($clientshash{$key}[2]+$clientshash{$key}[3]));
 426                 }
 427
 428                 if ($count % 2){
 429                         print" <tr>";
 430                         $col="bgcolor='$color{'color20'}'";
 431                 }else{
 432                         $col="bgcolor='$color{'color22'}'";
 433                         print" <tr>";
 434                 }
 435                 print "<td $col><center>$clientshash{$key}[4]</td><td $col><center>$starttime ";
 436                 print "</center></td><td $col><center>$endtime ";
 437                 print "</td><td $col><center>$clientshash{$key}[0]</td><td $col><form method='post'><center><input type='image' src='/images/delete.gif' align='middle' alt='$Lang::tr{'delete'}' title='$Lang::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delvoucherinuse' /><input type='hidden' name='key' value='$clientshash{$key}[0]' /></form></tr>";
 438                 $count++;
 439         }
 440
 441         print "</table>";
 442         &Header::closebox();
 443 }
 444
 445 sub show_voucher_out(){
 446         #if there are already generated but unsused vouchers, print a table
 447         return if ( -z $voucherout);
 448         my $count=0;
 449         my $col;
 450         &Header::openbox('100%', 'left', $Lang::tr{'Captive vout'});
 451         print<<END
 452                 <center><table class='tbl' border='0'>
 453                 <tr>
 454                         <th align='center' width='15%'>$Lang::tr{'Captive voucher'}</th><th align='center' width='15%'>$Lang::tr{'date'}</th><th th align='center' width='15%'>$Lang::tr{'Captive expire'}</th><th align='center' width='60%'>$Lang::tr{'remark'}</th><th align='center' width='5%'>$Lang::tr{'delete'}</th></tr>
 455 END
 456 ;
 457         &General::readhasharray("$voucherout", \%voucherhash);
 458         foreach my $key (keys %voucherhash)
 459         {
 460                 my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($voucherhash{$key}[0]));
 461                 my $endtime;
 462                 if ($voucherhash{$key}[2] eq '0'){
 463                         $endtime=$Lang::tr{'Captive nolimit'};
 464                 }else{
 465                         $endtime=sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($voucherhash{$key}[0]+$voucherhash{$key}[2]));
 466                 }
 467
 468                 if ($count % 2){
 469                         print" <tr>";
 470                         $col="bgcolor='$color{'color20'}'";
 471                 }else{
 472                         $col="bgcolor='$color{'color22'}'";
 473                         print" <tr>";
 474                 }
 475
 476                 print "<td $col><center><b>$voucherhash{$key}[1]</b></td>";
 477                 print "<td $col><center>$starttime</td>";
 478                 print "<td $col><center>$endtime</td>";
 479                 print "<td $col align='center'>$voucherhash{$key}[3]</td>";
 480                 print "<td $col><form method='post'><center><input type='image' src='/images/delete.gif' align='middle' alt='$Lang::tr{'delete'}' title='$Lang::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delvoucherout' /><input type='hidden' name='key' value='$voucherhash{$key}[0]' /></form></tr>";
 481                 $count++;
 482         }
 483
 484         print "</table>";
 485         &Header::closebox();
 486 }
 487
 488 sub show_voucher_in_use(){
 489         #if there are active clients which use vouchers show table
 490         return if ( -z $clients || ! -f $clients );
 491         my $count=0;
 492         my $col;
 493         &Header::openbox('100%', 'left', $Lang::tr{'Captive voactive'});
 494 print<<END
 495         <center><table class='tbl' width='100%'>
 496                 <tr>
 497                         <th align='center' width='15%'>$Lang::tr{'Captive voucher'}</th><th th align='center' width='15%'>$Lang::tr{'Captive activated'}</th><th align='center' width='15%'>$Lang::tr{'Captive expire'}</th><th align='center' width='10%'>$Lang::tr{'Captive mac'}</th><th align='center' width='43%'>$Lang::tr{'remark'}</th><th th align='center' width='5%'>$Lang::tr{'delete'}</th></tr>
 498 END
 499 ;
 500         &General::readhasharray("$clients", \%clientshash);
 501         foreach my $key (keys %clientshash)
 502         {
 503                 #calculate time from clientshash (starttime)
 504                 my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($clientshash{$key}[2]));
 505                 #calculate endtime from clientshash
 506                 my $endtime;
 507                 if ($clientshash{$key}[3] eq '0'){
 508                         $endtime=$Lang::tr{'Captive nolimit'};
 509                 }else{
 510                         $endtime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($clientshash{$key}[2]+$clientshash{$key}[3]));
 511                 }
 512
 513                         if ($count % 2){
 514                                 print" <tr>";
 515                                 $col="bgcolor='$color{'color20'}'";
 516                         }else{
 517                                 $col="bgcolor='$color{'color22'}'";
 518                                 print" <tr>";
 519                         }
 520
 521                         print "<td $col><center><b>$clientshash{$key}[4]</b></td><td $col><center>$starttime ";
 522                         print "</center></td><td $col><center>$endtime</center></td><td $col><center>$clientshash{$key}[0]</td><td $col><center>$clientshash{$key}[5]</center>";
 523                         print "</td><td $col><form method='post'><center><input type='image' src='/images/delete.gif' align='middle' alt='$Lang::tr{'delete'}' title='$Lang::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delvoucherinuse' /><input type='hidden' name='key' value='$clientshash{$key}[0]' /></form></tr>";
 524                         $count++;
 525         }
 526
 527         print "</table>";
 528         &Header::closebox();
 529 }
 530
 531 sub validremark
 532 {
 533         # Checks a hostname against RFC1035
 534         my $remark = $_[0];
 535         # Each part should be at least two characters in length
 536         # but no more than 63 characters
 537         if (length ($remark) < 1 || length ($remark) > 255) {
 538                 return 0;}
 539         # Only valid characters are a-z, A-Z, 0-9 and -
 540         if ($remark !~ /^[a-zäöüA-ZÖÄÜ0-9-.:;\|_()\/\s]*$/) {
 541                 return 0;}
 542         # First character can only be a letter or a digit
 543         if (substr ($remark, 0, 1) !~ /^[a-zäöüA-ZÖÄÜ0-9]*$/) {
 544                 return 0;}
 545         # Last character can only be a letter or a digit
 546         if (substr ($remark, -1, 1) !~ /^[a-zöäüA-ZÖÄÜ0-9.:;_)]*$/) {
 547                 return 0;}
 548         return 1;
 549 }
 550
 551 sub error{
 552         #if an errormessage exits, show a box with errormessage
 553         if ($errormessage) {
 554                 &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 555                 print "<class name='base'>$errormessage\n";
 556                 print "&nbsp;</class>\n";
 557                 &Header::closebox();
 558         }
 559 }
 560
 561 &Header::closebigbox();
 562 &Header::closepage();