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 use File::Basename;
  25
  26 # enable only the following on debugging purpose
  27 #use warnings;
  28 #use CGI::Carp 'fatalsToBrowser';
  29
  30 require '/var/ipfire/general-functions.pl';
  31 require "${General::swroot}/lang.pl";
  32 require "${General::swroot}/header.pl";
  33
  34 my %selected = ();
  35
  36 my $coupons = "${General::swroot}/captive/coupons";
  37 my %couponhash = ();
  38
  39 my $logo = "${General::swroot}/captive/logo.dat";
  40
  41 my %settings=();
  42 my %mainsettings;
  43 my %color;
  44 my %cgiparams=();
  45 my %netsettings=();
  46 my %checked=();
  47 my $errormessage='';
  48 my $clients="${General::swroot}/captive/clients";
  49 my %clientshash=();
  50 my $settingsfile="${General::swroot}/captive/settings";
  51 unless (-e $settingsfile)       { system("touch $settingsfile"); }
  52
  53 &Header::getcgihash(\%cgiparams);
  54
  55 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
  56 &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
  57 &General::readhash("$settingsfile", \%settings) if(-f $settingsfile);
  58 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
  59
  60 &Header::showhttpheaders();
  61
  62 if ($cgiparams{'ACTION'} eq $Lang::tr{'save'}) {
  63         my $file = $cgiparams{'logo'};
  64         if ($file) {
  65                 # Check if the file extension is PNG/JPEG
  66                 chomp $file;
  67
  68                 my ($name, $path, $ext) = fileparse($file, qr/\.[^.]*$/);
  69                 if ($ext ne ".png" && $ext ne ".jpg" && $ext ne ".jpeg") {
  70                         $errormessage = $Lang::tr{'Captive wrong ext'};
  71                 }
  72         }
  73
  74         $settings{'ENABLE_GREEN'}               = $cgiparams{'ENABLE_GREEN'};
  75         $settings{'ENABLE_BLUE'}                = $cgiparams{'ENABLE_BLUE'};
  76         $settings{'AUTH'}                               = $cgiparams{'AUTH'};
  77         $settings{'TITLE'}                              = $cgiparams{'TITLE'};
  78         $settings{'COLOR'}                      = $cgiparams{'COLOR'};
  79         $settings{'SESSION_TIME'}               = $cgiparams{'SESSION_TIME'};
  80
  81         if (!$errormessage){
  82                 #Check if we need to upload a new logo
  83                 if ($file) {
  84                         # Save logo
  85                         my ($filehandle) = CGI::upload("logo");
  86
  87                         # XXX check filesize
  88
  89                         open(FILE, ">$logo");
  90                         binmode $filehandle;
  91                         while (<$filehandle>) {
  92                                 print FILE;
  93                         }
  94                         close(FILE);
  95                 }
  96
  97                 &General::writehash("$settingsfile", \%settings);
  98
  99                 # Save terms
 100                 if ($cgiparams{'TERMS'}){
 101                         $cgiparams{'TERMS'} = &Header::escape($cgiparams{'TERMS'});
 102                         open(FH, ">:utf8", "/var/ipfire/captive/terms.txt") or die("$!");
 103                         print FH $cgiparams{'TERMS'};
 104                         close(FH);
 105                         $cgiparams{'TERMS'} = "";
 106                 }
 107
 108                 #execute binary to reload firewall rules
 109                 system("/usr/local/bin/captivectrl");
 110
 111                 if ($cgiparams{'ENABLE_BLUE'} eq 'on'){
 112                                 system("/usr/local/bin/wirelessctrl");
 113                 }
 114         }
 115 }
 116
 117 if ($cgiparams{'ACTION'} eq "$Lang::tr{'Captive generate coupon'}") {
 118         #calculate expiredate
 119         my $expire;
 120         if ($settings{'UNLIMITED'} eq 'on'){
 121                 $expire = $Lang::tr{'Captive nolimit'};
 122         }else{
 123                 $settings{'EXPIRE'} = $cgiparams{'EXP_HOUR'}+$cgiparams{'EXP_DAY'}+$cgiparams{'EXP_WEEK'}+$cgiparams{'EXP_MONTH'};
 124                 $expire = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime(time()+$settings{'EXPIRE'}));
 125     }
 126
 127         #Check Expiretime
 128         if($cgiparams{'EXP_HOUR'}+$cgiparams{'EXP_DAY'}+$cgiparams{'EXP_WEEK'}+$cgiparams{'EXP_MONTH'} == 0 && $cgiparams{'UNLIMITED'} == ''){
 129                 $errormessage=$Lang::tr{'Captive noexpiretime'};
 130         }
 131
 132         #check valid remark
 133         if ($cgiparams{'REMARK'} ne '' && !&validremark($cgiparams{'REMARK'})){
 134                 $errormessage=$Lang::tr{'fwhost err remark'};
 135         }
 136
 137         if (!$errormessage) {
 138                 # Remember selected values
 139                 foreach my $val (("UNLIMITED", "EXP_HOUR", "EXP_DAY", "EXP_WEEK", "EXP_MONTH")) {
 140                         $settings{$val} = $cgiparams{$val};
 141                 }
 142                 &General::writehash($settingsfile, \%settings);
 143
 144                 &General::readhasharray($coupons, \%couponhash) if (-e $coupons);
 145                 my $now = time();
 146
 147                 my $count = $cgiparams{'COUNT'} || 1;
 148                 while($count-- > 0) {
 149                         # Generate a new code
 150                         my $code = &gencode();
 151
 152                         # Check if the coupon code already exists
 153                         foreach my $key (keys %couponhash) {
 154                                 if($couponhash{$key}[1] eq $code) {
 155                                         # Code already exists, so try again
 156                                         $code = "";
 157                                         $count++;
 158                                         last;
 159                                 }
 160                         }
 161
 162                         next if ($code eq "");
 163
 164                         # Get a new key from hash
 165                         my $key = &General::findhasharraykey(\%couponhash);
 166
 167                         # Initialize all fields
 168                         foreach my $i (0 .. 3) { $couponhash{$key}[$i] = ""; }
 169
 170                         $couponhash{$key}[0] = $now;
 171                         $couponhash{$key}[1] = $code;
 172                         $couponhash{$key}[2] = $expires;
 173                         $couponhash{$key}[3] = $cgiparams{'REMARK'};
 174                 }
 175
 176                 # Save everything to disk
 177                 &General::writehasharray($coupons, \%couponhash);
 178         }
 179 }
 180
 181 if ($cgiparams{'ACTION'} eq 'delete-coupon') {
 182         #deletes an already generated but unused voucher
 183
 184         #read all generated vouchers
 185         &General::readhasharray($coupons, \%couponhash) if (-e $coupons);
 186         foreach my $key (keys %couponhash) {
 187                 if($cgiparams{'key'} eq $couponhash{$key}[0]){
 188                         #write logenty with decoded remark
 189                         my $rem=HTML::Entities::decode_entities($couponhash{$key}[4]);
 190                         &General::log("Captive", "Delete unused coupon $couponhash{$key}[1] $couponhash{$key}[2] hours valid expires on $couponhash{$key}[3] remark $rem");
 191                         #delete line from hash
 192                         delete $couponhash{$key};
 193                         last;
 194                 }
 195         }
 196         #write back hash
 197         &General::writehasharray($coupons, \%couponhash);
 198 }
 199
 200 if ($cgiparams{'ACTION'} eq 'delete-client') {
 201         #delete voucher and connection in use
 202
 203         #read all active clients
 204         &General::readhasharray($clients, \%clientshash) if (-e $clients);
 205         foreach my $key (keys %clientshash) {
 206                 if($cgiparams{'key'} eq $clientshash{$key}[0]){
 207                         #prepare log entry with decoded remark
 208                         my $rem=HTML::Entities::decode_entities($clientshash{$key}[7]);
 209                         #write logentry
 210                         &General::log("Captive", "Deleted client in use $clientshash{$key}[1] $clientshash{$key}[2] hours valid expires on $clientshash{$key}[3] remark $rem - Connection will be terminated");
 211                         #delete line from hash
 212                         delete $clientshash{$key};
 213                         last;
 214                 }
 215         }
 216         #write back hash
 217         &General::writehasharray("$clients", \%clientshash);
 218         #reload firewallrules to kill connection of client
 219         system("/usr/local/bin/captivectrl");
 220 }
 221
 222 #open webpage, print header and open box
 223 &Header::openpage($Lang::tr{'Captive menu'}, 1, '');
 224 &Header::openbigbox();
 225
 226 # If an error message exists, show a box with the error message
 227 if ($errormessage) {
 228         &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 229         print $errormessage;
 230         &Header::closebox();
 231 }
 232
 233 # Prints the config box on the website
 234 &Header::openbox('100%', 'left', $Lang::tr{'Captive config'});
 235 print <<END
 236         <form method='post' action='$ENV{'SCRIPT_NAME'}' enctype="multipart/form-data">\n
 237                 <table width='100%' border="0">
 238                 <tr>
 239 END
 240 ;
 241
 242 #check which parameters have to be enabled (from settings file)
 243 $checked{'ENABLE_GREEN'}{'off'} = '';
 244 $checked{'ENABLE_GREEN'}{'on'} = '';
 245 $checked{'ENABLE_GREEN'}{$settings{'ENABLE_GREEN'}} = "checked='checked'";
 246
 247 $checked{'ENABLE_BLUE'}{'off'} = '';
 248 $checked{'ENABLE_BLUE'}{'on'} = '';
 249 $checked{'ENABLE_BLUE'}{$settings{'ENABLE_BLUE'}} = "checked='checked'";
 250
 251 $checked{'UNLIMITED'}{'off'} = '';
 252 $checked{'UNLIMITED'}{'on'} = '';
 253 $checked{'UNLIMITED'}{$settings{'UNLIMITED'}} = "checked='checked'";
 254
 255 $selected{'AUTH'} = ();
 256 $selected{'AUTH'}{'COUPON'} = "";
 257 $selected{'AUTH'}{'TERMS'} = "";
 258 $selected{'AUTH'}{$settings{'AUTH'}} = "selected";
 259
 260 if ($netsettings{'GREEN_DEV'}){
 261         print "<td width='30%'>$Lang::tr{'Captive active on'} <font color='$Header::colourgreen'>Green</font></td><td><input type='checkbox' name='ENABLE_GREEN' $checked{'ENABLE_GREEN'}{'on'} /></td></tr>";
 262 }
 263 if ($netsettings{'BLUE_DEV'}){
 264         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>";
 265 }
 266
 267 print<<END
 268         </tr>
 269         <tr>
 270                 <td>
 271                         $Lang::tr{'Captive authentication'}
 272                 </td>
 273                 <td>
 274                         <select name='AUTH'>
 275                                 <option value="TERMS"  $selected{'AUTH'}{'TERMS'} >$Lang::tr{'Captive terms'}</option>
 276                                 <option value="COUPON" $selected{'AUTH'}{'COUPON'}>$Lang::tr{'Captive coupon'}</option>
 277                         </select>
 278                 </td>
 279         </tr>
 280 END
 281 ;
 282
 283 if ($settings{'AUTH'} eq 'TERMS') {
 284         $selected{'SESSION_TIME'} = ();
 285         $selected{'SESSION_TIME'}{'0'} = "";
 286         $selected{'SESSION_TIME'}{'3600'} = "";
 287         $selected{'SESSION_TIME'}{'86400'} = "";
 288         $selected{'SESSION_TIME'}{'604800'} = "";
 289         $selected{'SESSION_TIME'}{'18144000'} = "";
 290         $selected{'SESSION_TIME'}{$settings{'SESSION_TIME'}} = "selected";
 291
 292         my $terms = &getterms();
 293         print <<END;
 294                 <tr>
 295                         <td></td>
 296                         <td>
 297                                 <textarea cols="50" rows="10" name="TERMS">$terms</textarea>
 298                         </td>
 299                 </tr>
 300
 301                 <tr>
 302                         <td>$Lang::tr{'Captive client session expiry time'}</td>
 303                         <td>
 304                                 <select name="SESSION_TIME">
 305                                         <option value="0"        $selected{'SESSION_TIME'}{'0'}>- $Lang::tr{'unlimited'} -</option>
 306                                         <option value="3600"     $selected{'SESSION_TIME'}{'3600'}>$Lang::tr{'one hour'}</option>
 307                                         <option value="86400"    $selected{'SESSION_TIME'}{'86400'}>$Lang::tr{'24 hours'}</option>
 308                                         <option value="604800"   $selected{'SESSION_TIME'}{'604800'}>$Lang::tr{'one week'}</option>
 309                                         <option value="18144000" $selected{'SESSION_TIME'}{'18144000'}>$Lang::tr{'one month'}</option>
 310                                 </select>
 311                         </td>
 312                 </tr>
 313 END
 314 }
 315
 316 print<<END;
 317         <tr>
 318                 <td colspan="2">
 319                         <br>
 320                         <strong>$Lang::tr{'Captive branding'}</strong>
 321                 </td>
 322         </tr>
 323         <tr>
 324                 <td>
 325                         $Lang::tr{'Captive title'}
 326                 </td>
 327                 <td>
 328                         <input type='text' name='TITLE' value="$settings{'TITLE'}" size='40'>
 329                 </td>
 330         </tr>
 331         <tr>
 332                 <td>$Lang::tr{'Captive brand color'}</td>
 333                 <td>
 334                         <input type="color" name="COLOR" value="$settings{'COLOR'}">
 335                 </td>
 336         </tr>
 337         <tr>
 338                 <td>
 339                         $Lang::tr{'Captive upload logo'}
 340                 </td>
 341                 <td>
 342                         <input type="file" name="logo">
 343                         <br>$Lang::tr{'Captive upload logo recommendations'}
 344                 </td>
 345         </tr>
 346 END
 347
 348 if (-e $logo) {
 349         print <<END;
 350                 <tr>
 351                         <td>$Lang::tr{'Captive logo uploaded'}</td>
 352                         <td>$Lang::tr{'yes'}</td>
 353                 </tr>
 354 END
 355 }
 356
 357 print <<END;
 358         <tr>
 359                 <td></td>
 360                 <td align='right'>
 361                         <input type='submit' name='ACTION' value="$Lang::tr{'save'}"/>
 362                 </td>
 363         </tr>
 364         </table></form>
 365 END
 366
 367 &Header::closebox();
 368
 369 #if settings is set to use coupons, the coupon part has to be displayed
 370 if ($settings{'AUTH'} eq 'COUPON') {
 371         &coupons();
 372 } else {
 373         #otherwise we show the licensepart
 374         &show_license_connections();
 375 }
 376
 377 sub getterms() {
 378         my @ret;
 379
 380         open(FILE, "<:utf8", "/var/ipfire/captive/terms.txt");
 381         while(<FILE>) {
 382                 push(@ret, HTML::Entities::decode_entities($_));
 383         }
 384         close(FILE);
 385
 386         return join(/\n/, @ret);
 387 }
 388
 389 sub gencode(){
 390         #generate a random code only letters from A-Z except 'O'  and 0-9
 391         my @chars = ("A".."N", "P".."Z", "0".."9");
 392         my $randomstring;
 393         $randomstring .= $chars[rand @chars] for 1..8;
 394         return $randomstring;
 395 }
 396
 397 sub coupons() {
 398         &Header::openbox('100%', 'left', $Lang::tr{'Captive generate coupon'});
 399         print <<END;
 400                 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 401                         <table border='0' width='100%'>
 402                                 <tr>
 403                                         <td width='30%'>
 404                                                 $Lang::tr{'Captive vouchervalid'}
 405                                         </td>
 406                                         <td width='70%'>
 407                                                 <table class='tbl' border='0' width='100%'>
 408                                                         <tr>
 409                                                                 <th>$Lang::tr{'hours'}</th>
 410                                                                 <th>$Lang::tr{'days'}</th>
 411                                                                 <th>$Lang::tr{'weeks'}</th>
 412                                                                 <th>$Lang::tr{'months'}</th>
 413                                                                 <th></th>
 414                                                         </tr>
 415 END
 416
 417                 #print hour-dropdownbox
 418                 my $hrs=3600;
 419                 print "<tr height='40px'><td><select name='EXP_HOUR' style='width:8em;'>";
 420                 print "<option value='0' ";
 421                 print " selected='selected'" if ($settings{'EXP_HOUR'} eq '0');
 422                 print ">--</option>";
 423                 for (my $i = 1; $i<25; $i++){
 424                         my $exp_sec = $i * $hrs;
 425                         print "<option value='$exp_sec' ";
 426                         print " selected='selected'" if ($settings{'EXP_HOUR'} eq $exp_sec);
 427                         print ">$i</option>";
 428                 }
 429                 print "</td><td>";
 430
 431                 #print day-dropdownbox
 432                 my $days=3600*24;
 433                 print "<select name='EXP_DAY' style='width:8em;'>";
 434                 print "<option value='0' ";
 435                 print " selected='selected'" if ($settings{'EXP_DAY'} eq '0');
 436                 print ">--</option>";
 437                 for (my $i = 1; $i<8; $i++){
 438                         my $exp_sec = $i * $days;
 439                         print "<option value='$exp_sec' ";
 440                         print " selected='selected'" if ($settings{'EXP_DAY'} eq $exp_sec);
 441                         print ">$i</option>";
 442                 }
 443                 print "</td><td>";
 444
 445                 #print week-dropdownbox
 446                 my $week=3600*24*7;
 447                 print "<select name='EXP_WEEK' style='width:8em;'>";
 448                 print "<option value='0' ";
 449                 print " selected='selected'" if ($settings{'EXP_WEEK'} eq '0');
 450                 print ">--</option>";
 451                 for (my $i = 1; $i<5; $i++){
 452                         my $exp_sec = $i * $week;
 453                         print "<option value='$exp_sec' ";
 454                         print " selected='selected'" if ($settings{'EXP_WEEK'} eq $exp_sec);
 455                         print ">$i</option>";
 456                 }
 457                 print "</td><td>";
 458
 459                 #print month-dropdownbox
 460                 my $month=3600*24*30;
 461                 print "<select name='EXP_MONTH' style='width:8em;'>";
 462                 print "<option value='0' ";
 463                 print " selected='selected'" if ($settings{'EXP_MONTH'} eq '0');
 464                 print ">--</option>";
 465                 for (my $i = 1; $i<13; $i++){
 466                         my $exp_sec = $i * $month;
 467                         print "<option value='$exp_sec' ";
 468                         print " selected='selected'" if ($settings{'EXP_MONTH'} eq $exp_sec);
 469                         print ">$i</option>";
 470                 }
 471                 print <<END;
 472                                                                 </td>
 473                                                                 <td>
 474                                                                         <label>
 475                                                                                 <input type='checkbox' name='UNLIMITED' $checked{'UNLIMITED'}{'on'} />
 476                                                                                 $Lang::tr{'Captive nolimit'}
 477                                                                         </label>
 478                                                                 </td>
 479                                                         </tr>
 480                                                 </table>
 481                                         </td>
 482                                 </tr>
 483                                 <tr>
 484                                         <td>$Lang::tr{'remark'}</td>
 485                                         <td>
 486                                                 <input type='text' style='width: 98%;' name='REMARK' align='left'>
 487                                         </td>
 488                                 </tr>
 489                         </table>
 490
 491                         <div align="right">
 492                                 <select name="COUNT">
 493                                         <option value="1">1</option>
 494                                         <option value="2">2</option>
 495                                         <option value="3">3</option>
 496                                         <option value="4">4</option>
 497                                         <option value="5">5</option>
 498                                         <option value="6">6</option>
 499                                         <option value="7">7</option>
 500                                         <option value="8">8</option>
 501                                         <option value="9">9</option>
 502                                         <option value="10">10</option>
 503                                         <option value="20">20</option>
 504                                         <option value="50">50</option>
 505                                         <option value="100">100</option>
 506                                 </select>
 507
 508                                 <input type="submit" name="ACTION" value="$Lang::tr{'Captive generate coupon'}">
 509                         </div>
 510                 </form>
 511 END
 512
 513         &Header::closebox();
 514
 515         # Show all coupons if exist
 516         if (! -z $coupons) {
 517                 &show_coupons();
 518         }
 519
 520         if (! -z $clients) {
 521                 &show_clients();
 522         }
 523 }
 524
 525 sub show_license_connections(){
 526         #if there are active clients, show the box with active connections
 527         return if ( -z $clients || ! -f $clients );
 528         my $count=0;
 529         my $col;
 530         &Header::openbox('100%', 'left', $Lang::tr{'Captive voactive'});
 531 print<<END
 532                 <center><table class='tbl'>
 533                 <tr>
 534                         <th align='center' width='15%'>$Lang::tr{'Captive coupon'}</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>
 535 END
 536 ;
 537         #read all clients from hash and show table
 538         &General::readhasharray($clients, \%clientshash) if (-e $clients);
 539         foreach my $key (keys %clientshash){
 540                 my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($clientshash{$key}[2]));
 541                 my $endtime;
 542                 if ($clientshash{$key}[3] eq '0'){
 543                         $endtime=$Lang::tr{'Captive nolimit'};
 544                 }else{
 545                         $endtime=sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($clientshash{$key}[2]+$clientshash{$key}[3]));
 546                 }
 547
 548                 if ($count % 2){
 549                         print" <tr>";
 550                         $col="bgcolor='$color{'color20'}'";
 551                 }else{
 552                         $col="bgcolor='$color{'color22'}'";
 553                         print" <tr>";
 554                 }
 555                 print "<td $col><center>$clientshash{$key}[4]</td><td $col><center>$starttime ";
 556                 print "</center></td><td $col><center>$endtime ";
 557                 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='$Lang::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delete-client' /><input type='hidden' name='key' value='$clientshash{$key}[0]' /></form></tr>";
 558                 $count++;
 559         }
 560
 561         print "</table>";
 562         &Header::closebox();
 563 }
 564
 565 sub show_coupons() {
 566         #if there are already generated but unsused coupons, print a table
 567         my $count=0;
 568         my $col;
 569         &Header::openbox('100%', 'left', $Lang::tr{'Captive vout'});
 570         print<<END
 571                 <center><table class='tbl' border='0'>
 572                 <tr>
 573                         <th align='center' width='15%'>$Lang::tr{'Captive coupon'}</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>
 574 END
 575 ;
 576         &General::readhasharray($coupons, \%couponhash) if (-e $coupons);
 577         foreach my $key (keys %couponhash)
 578         {
 579                 my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($couponhash{$key}[0]));
 580                 my $endtime;
 581                 if ($couponhash{$key}[2] eq '0'){
 582                         $endtime=$Lang::tr{'Captive nolimit'};
 583                 }else{
 584                         $endtime=sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime(time()+$couponhash{$key}[2]));
 585                 }
 586
 587                 if ($count % 2){
 588                         print" <tr>";
 589                         $col="bgcolor='$color{'color20'}'";
 590                 }else{
 591                         $col="bgcolor='$color{'color22'}'";
 592                         print" <tr>";
 593                 }
 594
 595                 print "<td $col><center><b>$couponhash{$key}[1]</b></td>";
 596                 print "<td $col><center>$starttime</td>";
 597                 print "<td $col><center>$endtime</td>";
 598                 print "<td $col align='center'>$couponhash{$key}[3]</td>";
 599                 print "<td $col><form method='post'><center><input type='image' src='/images/delete.gif' align='middle' alt='$Lang::tr{'delete'}' title='$Lang::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delete-coupon' /><input type='hidden' name='key' value='$couponhash{$key}[0]' /></form></tr>";
 600                 $count++;
 601         }
 602
 603         print "</table>";
 604         &Header::closebox();
 605 }
 606
 607 sub show_clients() {
 608         #if there are active clients which use coupons show table
 609         return if ( -z $clients || ! -f $clients );
 610         my $count=0;
 611         my $col;
 612         &Header::openbox('100%', 'left', $Lang::tr{'Captive voactive'});
 613 print<<END
 614         <center><table class='tbl' width='100%'>
 615                 <tr>
 616                         <th align='center' width='15%'>$Lang::tr{'Captive coupon'}</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%'>$Lang::tr{'delete'}</th></tr>
 617 END
 618 ;
 619         &General::readhasharray($clients, \%clientshash) if (-e $clients);
 620         foreach my $key (keys %clientshash)
 621         {
 622                 #calculate time from clientshash (starttime)
 623                 my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($clientshash{$key}[2]));
 624                 #calculate endtime from clientshash
 625                 my $endtime;
 626                 if ($clientshash{$key}[3] eq '0'){
 627                         $endtime=$Lang::tr{'Captive nolimit'};
 628                 }else{
 629                         $endtime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1]  }->(localtime($clientshash{$key}[2]+$clientshash{$key}[3]));
 630                 }
 631
 632                         if ($count % 2){
 633                                 print" <tr>";
 634                                 $col="bgcolor='$color{'color20'}'";
 635                         }else{
 636                                 $col="bgcolor='$color{'color22'}'";
 637                                 print" <tr>";
 638                         }
 639
 640                         print "<td $col><center><b>$clientshash{$key}[4]</b></td><td $col><center>$starttime ";
 641                         print "</center></td><td $col><center>$endtime</center></td><td $col><center>$clientshash{$key}[0]</td><td $col><center>$clientshash{$key}[5]</center>";
 642                         print "</td><td $col><form method='post'><center><input type='image' src='/images/delete.gif' align='middle' alt='$Lang::tr{'delete'}' title='$Lang::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delete-client' /><input type='hidden' name='key' value='$clientshash{$key}[0]' /></form></tr>";
 643                         $count++;
 644         }
 645
 646         print "</table>";
 647         &Header::closebox();
 648 }
 649
 650 sub validremark
 651 {
 652         # Checks a hostname against RFC1035
 653         my $remark = $_[0];
 654         # Each part should be at least two characters in length
 655         # but no more than 63 characters
 656         if (length ($remark) < 1 || length ($remark) > 255) {
 657                 return 0;}
 658         # Only valid characters are a-z, A-Z, 0-9 and -
 659         if ($remark !~ /^[a-zäöüA-ZÖÄÜ0-9-.:;\|_()\/\s]*$/) {
 660                 return 0;}
 661         # First character can only be a letter or a digit
 662         if (substr ($remark, 0, 1) !~ /^[a-zäöüA-ZÖÄÜ0-9]*$/) {
 663                 return 0;}
 664         # Last character can only be a letter or a digit
 665         if (substr ($remark, -1, 1) !~ /^[a-zöäüA-ZÖÄÜ0-9.:;_)]*$/) {
 666                 return 0;}
 667         return 1;
 668 }
 669
 670 &Header::closebigbox();
 671 &Header::closepage();