mirror of
https://github.com/vincentmli/bpfire.git
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635 lines
21 KiB
Perl
Executable File
635 lines
21 KiB
Perl
Executable File
#!/usr/bin/perl
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###############################################################################
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# #
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# IPFire.org - A linux based firewall #
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# Copyright (C) 2016 IPFire Team <alexander.marx@ipfire.org> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <http://www.gnu.org/licenses/>. #
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# #
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###############################################################################
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#use strict;
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use HTML::Entities();
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use File::Basename;
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# enable only the following on debugging purpose
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#use warnings;
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#use CGI::Carp 'fatalsToBrowser';
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require '/var/ipfire/general-functions.pl';
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require "${General::swroot}/lang.pl";
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require "${General::swroot}/header.pl";
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my $coupons = "${General::swroot}/captive/coupons";
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my %couponhash = ();
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my %settings=();
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my %mainsettings;
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my %color;
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my %cgiparams=();
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my %netsettings=();
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my %checked=();
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my $errormessage='';
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my $clients="${General::swroot}/captive/clients";
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my %clientshash=();
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my $settingsfile="${General::swroot}/captive/settings";
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my $logopath = "/srv/web/ipfire/html/captive/logo";
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unless (-e $settingsfile) { system("touch $settingsfile"); }
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&Header::getcgihash(\%cgiparams);
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&General::readhash("${General::swroot}/main/settings", \%mainsettings);
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&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
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&General::readhash("$settingsfile", \%settings) if(-f $settingsfile);
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&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
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&Header::showhttpheaders();
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#actions
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if ($cgiparams{'ACTION'} eq "$Lang::tr{'save'}"){
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my $file = $cgiparams{'uploaded_file'};
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if ($file){
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#Check if extension is png
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chomp $file;
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my ($name, $path, $ext) = fileparse($file, qr/\.[^.]*$/);
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if ($ext ne ".png"){
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$errormessage=$Lang::tr{'Captive wrong ext'};
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}
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}
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$settings{'ENABLE_GREEN'} = $cgiparams{'ENABLE_GREEN'};
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$settings{'ENABLE_BLUE'} = $cgiparams{'ENABLE_BLUE'};
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$settings{'AUTH'} = $cgiparams{'AUTH'};
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$settings{'TITLE'} = $cgiparams{'TITLE'};
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$settings{'UNLIMITED'} = $cgiparams{'UNLIMITED'};
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$settings{'COLOR'} = $cgiparams{'COLOR'};
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if (!$errormessage){
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#Check if we need to upload a new logo
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if($file){
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#Save File
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my ($filehandle) = CGI::upload('uploaded_file');
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open (UPLOADFILE, ">$logopath/logo.png");
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binmode $filehandle;
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while ( <$filehandle> ) {
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print UPLOADFILE;
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}
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close (UPLOADFILE);
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#Open file to check if dimensions are within rang
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open (PNG , "<$logopath/logo.png");
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local $/;
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my $PNG1=<PNG>;
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close(PNG);
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my ($width,$height)=&pngsize($PNG1);
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if($width > 1920 || $height > 800 || $width < 1280 || $height < 400){
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$errormessage.="$Lang::tr{'Captive invalid logosize'} <br>Filedimensions width: $width height: $height ";
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unlink("$logopath/logo.png");
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}
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}
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&General::writehash("$settingsfile", \%settings);
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# Save terms
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if ($cgiparams{'TERMS'}){
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$cgiparams{'TERMS'} = &Header::escape($cgiparams{'TERMS'});
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open(FH, ">:utf8", "/var/ipfire/captive/terms.txt") or die("$!");
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print FH $cgiparams{'TERMS'};
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close(FH);
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$cgiparams{'TERMS'} = "";
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}
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#execute binary to reload firewall rules
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system("/usr/local/bin/captivectrl");
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if ($cgiparams{'ENABLE_BLUE'} eq 'on'){
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system("/usr/local/bin/wirelessctrl");
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}
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}
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}
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if ($cgiparams{'ACTION'} eq "$Lang::tr{'Captive generate coupon'}"){
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# Generates a new coupon
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#calculate expiredate
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my $expire;
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if ($settings{'UNLIMITED'} eq 'on'){
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$expire = $Lang::tr{'Captive nolimit'};
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}else{
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$settings{'EXPIRE'} = $cgiparams{'EXP_HOUR'}+$cgiparams{'EXP_DAY'}+$cgiparams{'EXP_WEEK'}+$cgiparams{'EXP_MONTH'};
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$expire = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime(time()+$settings{'EXPIRE'}));
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}
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#Check Expiretime
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if($cgiparams{'EXP_HOUR'}+$cgiparams{'EXP_DAY'}+$cgiparams{'EXP_WEEK'}+$cgiparams{'EXP_MONTH'} == 0 && $cgiparams{'UNLIMITED'} == ''){
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$errormessage=$Lang::tr{'Captive noexpiretime'};
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}
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#check if we already have a coupon with same code
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&General::readhasharray($coupons, \%couponhash) if (-e $coupons);
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foreach my $key (keys %couponhash) {
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if($couponhash{$key}[1] eq $cgiparams{'CODE'}){
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$errormessage=$Lang::tr{'Captive err doublevoucher'};
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last;
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}
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}
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#check valid remark
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if ($cgiparams{'REMARK'} ne '' && !&validremark($cgiparams{'REMARK'})){
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$errormessage=$Lang::tr{'fwhost err remark'};
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}
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#if no error detected, write to disk
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if (!$errormessage){
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my $date=time(); #seconds in utc
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#first get new key from hash
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my $key=&General::findhasharraykey (\%couponhash);
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#initialize all fields with ''
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foreach my $i (0 .. 3) { $couponhash{$key}[$i] = "";}
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#define fields
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$couponhash{$key}[0] = $date;
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$couponhash{$key}[1] = $cgiparams{'CODE'};
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$couponhash{$key}[2] = $settings{'EXPIRE'};
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$couponhash{$key}[3] = $cgiparams{'REMARK'};
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#write values to disk
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&General::writehasharray($coupons, \%couponhash);
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#now prepare log entry, get expiring date for voucher and decode remark for logfile
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my $expdate=localtime(time()+$couponhash{$key}[3]);
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my $rem=HTML::Entities::decode_entities($couponhash{$key}[4]);
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#write logfile entry
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&General::log("Captive", "Generated new coupon $couponhash{$key}[1] $couponhash{$key}[2] hours valid expires on $expdate remark $rem");
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}
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}
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if ($cgiparams{'ACTION'} eq 'delete-coupon') {
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#deletes an already generated but unused voucher
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#read all generated vouchers
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&General::readhasharray($coupons, \%couponhash) if (-e $coupons);
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foreach my $key (keys %couponhash) {
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if($cgiparams{'key'} eq $couponhash{$key}[0]){
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#write logenty with decoded remark
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my $rem=HTML::Entities::decode_entities($couponhash{$key}[4]);
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&General::log("Captive", "Delete unused coupon $couponhash{$key}[1] $couponhash{$key}[2] hours valid expires on $couponhash{$key}[3] remark $rem");
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#delete line from hash
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delete $couponhash{$key};
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last;
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}
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}
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#write back hash
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&General::writehasharray($coupons, \%couponhash);
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}
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if ($cgiparams{'ACTION'} eq 'delete-client') {
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#delete voucher and connection in use
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#read all active clients
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&General::readhasharray($clients, \%clientshash) if (-e $clients);
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foreach my $key (keys %clientshash) {
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if($cgiparams{'key'} eq $clientshash{$key}[0]){
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#prepare log entry with decoded remark
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my $rem=HTML::Entities::decode_entities($clientshash{$key}[7]);
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#write logentry
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&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");
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#delete line from hash
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delete $clientshash{$key};
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last;
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}
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}
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#write back hash
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&General::writehasharray("$clients", \%clientshash);
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#reload firewallrules to kill connection of client
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system("/usr/local/bin/captivectrl");
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}
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#open webpage, print header and open box
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&Header::openpage($Lang::tr{'Captive menu'}, 1, '');
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&Header::openbigbox();
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#call error() to see if we have to print an errormessage on website
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&error();
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#call config() to display the configuration box
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&config();
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sub getterms(){
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my @ret;
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open(FILE, "<:utf8", "/var/ipfire/captive/terms.txt");
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while(<FILE>) {
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push(@ret, HTML::Entities::decode_entities($_));
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}
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close(FILE);
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return join(/\n/, @ret);
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}
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sub config(){
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#prints the config box on the website
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&Header::openbox('100%', 'left', $Lang::tr{'Captive config'});
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print <<END
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<form method='post' action='$ENV{'SCRIPT_NAME'}' enctype="multipart/form-data">\n
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<table width='100%' border="0">
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<tr>
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END
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;
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#check which parameters have to be enabled (from settings file)
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$checked{'ENABLE_GREEN'}{'off'} = '';
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$checked{'ENABLE_GREEN'}{'on'} = '';
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$checked{'ENABLE_GREEN'}{$settings{'ENABLE_GREEN'}} = "checked='checked'";
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$checked{'ENABLE_BLUE'}{'off'} = '';
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$checked{'ENABLE_BLUE'}{'on'} = '';
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$checked{'ENABLE_BLUE'}{$settings{'ENABLE_BLUE'}} = "checked='checked'";
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$checked{'UNLIMITED'}{'off'} = '';
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$checked{'UNLIMITED'}{'on'} = '';
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$checked{'UNLIMITED'}{$settings{'UNLIMITED'}} = "checked='checked'";
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if ($netsettings{'GREEN_DEV'}){
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print "<td width='30%'>$Lang::tr{'Captive active on'} <font color='$Header::colourgreen'>Green</font></td><td><input type='checkbox' name='ENABLE_GREEN' $checked{'ENABLE_GREEN'}{'on'} /></td></tr>";
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}
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if ($netsettings{'BLUE_DEV'}){
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print "<td width='30%'>$Lang::tr{'Captive active on'} <font color='$Header::colourblue'>Blue</font></td><td><input type='checkbox' name='ENABLE_BLUE' $checked{'ENABLE_BLUE'}{'on'} /></td></tr>";
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}
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print<<END
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</tr>
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<tr>
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<td>
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$Lang::tr{'Captive authentication'}
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</td>
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<td>
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<select name='AUTH'>
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END
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;
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print "<option value='TERMS' ";
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print " selected='selected'" if ($settings{'AUTH'} eq 'TERMS');
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print ">$Lang::tr{'Captive terms'}</option>";
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print "<option value='COUPON' ";
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print " selected='selected'" if ($settings{'AUTH'} eq 'COUPON');
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print ">$Lang::tr{'Captive coupon'}</option>";
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print<<END
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</select>
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</td>
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</tr>
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END
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;
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if ($settings{'AUTH'} eq 'TERMS') {
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my $terms = &getterms();
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print <<END;
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<tr>
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<td></td>
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<td>
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<textarea cols="50" rows="10" name="TERMS">$terms</textarea>
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</td>
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</tr>
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END
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}
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print<<END;
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<tr>
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<td colspan="2">
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<br>
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<strong>$Lang::tr{'Captive branding'}</strong>
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</td>
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</tr>
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<tr>
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<td>
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$Lang::tr{'Captive title'}
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</td>
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<td>
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<input type='text' name='TITLE' value="$settings{'TITLE'}" size='40'>
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</td>
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</tr>
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<tr>
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<td>$Lang::tr{'Captive brand color'}</td>
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<td>
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<input type="color" name="COLOR" value="$settings{'COLOR'}">
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</td>
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</tr>
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END
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#Logo Upload
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print <<END;
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<tr>
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<td>
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$Lang::tr{'Captive logo_upload'}
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<br>
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$Lang::tr{'Captive logo_upload1'}
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</td>
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<td>
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<INPUT TYPE='file' NAME='uploaded_file' SIZE=30 MAXLENGTH=80>
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</td>
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</tr>
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END
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#Show Logo in webinterface with 1/2 size if set
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if (-f "$logopath/logo.png"){
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print"<tr><td>$Lang::tr{'Captive logo_set'}</td>";
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print"<td><img src='/captive/logo/logo.png' alt='$logopath/logo.png' width='25%' height='25%' /></td></tr>";
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}else{
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print"<tr><td>$Lang::tr{'Captive logo_set'}</td>";
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print"<td><br>$Lang::tr{'no'}</td></tr>";
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}
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print <<END;
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<tr>
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<td></td>
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<td align='right'>
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<input type='submit' name='ACTION' value="$Lang::tr{'save'}"/>
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</td>
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</tr>
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</table></form>
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END
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&Header::closebox();
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#if settings is set to use coupons, the coupon part has to be displayed
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if ($settings{'AUTH'} eq 'COUPON'){
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&coupons();
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}else{
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#otherwise we show the licensepart
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&show_license_connections();
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}
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}
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sub gencode(){
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#generate a random code only letters from A-Z except 'O' and 0-9
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my @chars = ("A".."N", "P".."Z", "0".."9");
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my $randomstring;
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$randomstring .= $chars[rand @chars] for 1..8;
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return $randomstring;
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}
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sub coupons() {
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&Header::openbox('100%', 'left', $Lang::tr{'Captive generate coupon'});
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print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>";
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print "<table border='0' width='100%'>";
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print "<tr><td width='30%'><br>$Lang::tr{'Captive vouchervalid'}</td><td width='70%'><br>";
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print "<table class='tbl' border='0' width='100%'>";
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print "<th>$Lang::tr{'hours'}</th><th>$Lang::tr{'days'}</th><th>$Lang::tr{'weeks'}</th><th>$Lang::tr{'months'}</th><th></th><th></th>";
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#print hour-dropdownbox
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my $hrs=3600;
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print "<tr height='40px'><td><select name='EXP_HOUR' style='width:8em;'>";
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print "<option value='0' ";
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print " selected='selected'" if ($settings{'EXP_HOUR'} eq '0');
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print ">--</option>";
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for (my $i = 1; $i<25; $i++){
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my $exp_sec = $i * $hrs;
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print "<option value='$exp_sec' ";
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print " selected='selected'" if ($settings{'EXP_HOUR'} eq $exp_sec);
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print ">$i</option>";
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}
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print "</td><td>";
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#print day-dropdownbox
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my $days=3600*24;
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print "<select name='EXP_DAY' style='width:8em;'>";
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print "<option value='0' ";
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print " selected='selected'" if ($settings{'EXP_DAY'} eq '0');
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print ">--</option>";
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for (my $i = 1; $i<8; $i++){
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my $exp_sec = $i * $days;
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print "<option value='$exp_sec' ";
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print " selected='selected'" if ($settings{'EXP_DAY'} eq $exp_sec);
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print ">$i</option>";
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}
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print "</td><td>";
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#print week-dropdownbox
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my $week=3600*24*7;
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print "<select name='EXP_WEEK' style='width:8em;'>";
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print "<option value='0' ";
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print " selected='selected'" if ($settings{'EXP_WEEK'} eq '0');
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print ">--</option>";
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for (my $i = 1; $i<5; $i++){
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my $exp_sec = $i * $week;
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print "<option value='$exp_sec' ";
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print " selected='selected'" if ($settings{'EXP_WEEK'} eq $exp_sec);
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print ">$i</option>";
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}
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print "</td><td>";
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#print month-dropdownbox
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my $month=3600*24*30;
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print "<select name='EXP_MONTH' style='width:8em;'>";
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print "<option value='0' ";
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print " selected='selected'" if ($settings{'EXP_MONTH'} eq '0');
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print ">--</option>";
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for (my $i = 1; $i<13; $i++){
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my $exp_sec = $i * $month;
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print "<option value='$exp_sec' ";
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print " selected='selected'" if ($settings{'EXP_MONTH'} eq $exp_sec);
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print ">$i</option>";
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}
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print "</td>";
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print "<td> <input type='checkbox' name='UNLIMITED' $checked{'UNLIMITED'}{'on'} /></td><td> <b>$Lang::tr{'Captive nolimit'}</b></td>";
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print "</tr></table>";
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print "</td></tr>";
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print "<tr><td><br>$Lang::tr{'remark'}</td><td><br><input type='text' style='width: 98%;' name='REMARK' align='left'></td></tr>";
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print "<tr><td> </td><td></td></tr></table><br><br>";
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$cgiparams{'CODE'} = &gencode();
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print "<div align='right'><input type='submit' name='ACTION' value='$Lang::tr{'Captive generate coupon'}'><input type='hidden' name='CODE' value='$cgiparams{'CODE'}'></form></div>";
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&Header::closebox();
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# Show all coupons if exist
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if (! -z $coupons) {
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&show_coupons();
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}
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if (! -z $clients) {
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&show_clients();
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}
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}
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sub show_license_connections(){
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#if there are active clients, show the box with active connections
|
|
return if ( -z $clients || ! -f $clients );
|
|
my $count=0;
|
|
my $col;
|
|
&Header::openbox('100%', 'left', $Lang::tr{'Captive voactive'});
|
|
print<<END
|
|
<center><table class='tbl'>
|
|
<tr>
|
|
<th align='center' width='15%'>$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>
|
|
END
|
|
;
|
|
#read all clients from hash and show table
|
|
&General::readhasharray($clients, \%clientshash) if (-e $clients);
|
|
foreach my $key (keys %clientshash){
|
|
my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime($clientshash{$key}[2]));
|
|
my $endtime;
|
|
if ($clientshash{$key}[3] eq '0'){
|
|
$endtime=$Lang::tr{'Captive nolimit'};
|
|
}else{
|
|
$endtime=sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime($clientshash{$key}[2]+$clientshash{$key}[3]));
|
|
}
|
|
|
|
if ($count % 2){
|
|
print" <tr>";
|
|
$col="bgcolor='$color{'color20'}'";
|
|
}else{
|
|
$col="bgcolor='$color{'color22'}'";
|
|
print" <tr>";
|
|
}
|
|
print "<td $col><center>$clientshash{$key}[4]</td><td $col><center>$starttime ";
|
|
print "</center></td><td $col><center>$endtime ";
|
|
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>";
|
|
$count++;
|
|
}
|
|
|
|
print "</table>";
|
|
&Header::closebox();
|
|
}
|
|
|
|
sub show_coupons() {
|
|
#if there are already generated but unsused coupons, print a table
|
|
my $count=0;
|
|
my $col;
|
|
&Header::openbox('100%', 'left', $Lang::tr{'Captive vout'});
|
|
print<<END
|
|
<center><table class='tbl' border='0'>
|
|
<tr>
|
|
<th align='center' width='15%'>$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>
|
|
END
|
|
;
|
|
&General::readhasharray($coupons, \%couponhash) if (-e $coupons);
|
|
foreach my $key (keys %couponhash)
|
|
{
|
|
my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime($couponhash{$key}[0]));
|
|
my $endtime;
|
|
if ($couponhash{$key}[2] eq '0'){
|
|
$endtime=$Lang::tr{'Captive nolimit'};
|
|
}else{
|
|
$endtime=sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime(time()+$couponhash{$key}[2]));
|
|
}
|
|
|
|
if ($count % 2){
|
|
print" <tr>";
|
|
$col="bgcolor='$color{'color20'}'";
|
|
}else{
|
|
$col="bgcolor='$color{'color22'}'";
|
|
print" <tr>";
|
|
}
|
|
|
|
print "<td $col><center><b>$couponhash{$key}[1]</b></td>";
|
|
print "<td $col><center>$starttime</td>";
|
|
print "<td $col><center>$endtime</td>";
|
|
print "<td $col align='center'>$couponhash{$key}[3]</td>";
|
|
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>";
|
|
$count++;
|
|
}
|
|
|
|
print "</table>";
|
|
&Header::closebox();
|
|
}
|
|
|
|
sub show_clients() {
|
|
#if there are active clients which use coupons show table
|
|
return if ( -z $clients || ! -f $clients );
|
|
my $count=0;
|
|
my $col;
|
|
&Header::openbox('100%', 'left', $Lang::tr{'Captive voactive'});
|
|
print<<END
|
|
<center><table class='tbl' width='100%'>
|
|
<tr>
|
|
<th align='center' width='15%'>$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%'>$Lang::tr{'delete'}</th></tr>
|
|
END
|
|
;
|
|
&General::readhasharray($clients, \%clientshash) if (-e $clients);
|
|
foreach my $key (keys %clientshash)
|
|
{
|
|
#calculate time from clientshash (starttime)
|
|
my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime($clientshash{$key}[2]));
|
|
#calculate endtime from clientshash
|
|
my $endtime;
|
|
if ($clientshash{$key}[3] eq '0'){
|
|
$endtime=$Lang::tr{'Captive nolimit'};
|
|
}else{
|
|
$endtime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime($clientshash{$key}[2]+$clientshash{$key}[3]));
|
|
}
|
|
|
|
if ($count % 2){
|
|
print" <tr>";
|
|
$col="bgcolor='$color{'color20'}'";
|
|
}else{
|
|
$col="bgcolor='$color{'color22'}'";
|
|
print" <tr>";
|
|
}
|
|
|
|
print "<td $col><center><b>$clientshash{$key}[4]</b></td><td $col><center>$starttime ";
|
|
print "</center></td><td $col><center>$endtime</center></td><td $col><center>$clientshash{$key}[0]</td><td $col><center>$clientshash{$key}[5]</center>";
|
|
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>";
|
|
$count++;
|
|
}
|
|
|
|
print "</table>";
|
|
&Header::closebox();
|
|
}
|
|
|
|
sub validremark
|
|
{
|
|
# Checks a hostname against RFC1035
|
|
my $remark = $_[0];
|
|
# Each part should be at least two characters in length
|
|
# but no more than 63 characters
|
|
if (length ($remark) < 1 || length ($remark) > 255) {
|
|
return 0;}
|
|
# Only valid characters are a-z, A-Z, 0-9 and -
|
|
if ($remark !~ /^[a-zäöüA-ZÖÄÜ0-9-.:;\|_()\/\s]*$/) {
|
|
return 0;}
|
|
# First character can only be a letter or a digit
|
|
if (substr ($remark, 0, 1) !~ /^[a-zäöüA-ZÖÄÜ0-9]*$/) {
|
|
return 0;}
|
|
# Last character can only be a letter or a digit
|
|
if (substr ($remark, -1, 1) !~ /^[a-zöäüA-ZÖÄÜ0-9.:;_)]*$/) {
|
|
return 0;}
|
|
return 1;
|
|
}
|
|
|
|
sub pngsize {
|
|
my $Buffer = shift;
|
|
my ($width,$height) = ( undef, undef );
|
|
|
|
if ($Buffer =~ /IHDR(.{8})/) {
|
|
my $PNG = $1;
|
|
($width,$height) = unpack( "NN", $PNG );
|
|
} else {
|
|
$width="invalid";
|
|
$height= "invalid";
|
|
};
|
|
return ($width,$height);
|
|
}
|
|
|
|
sub error{
|
|
#if an errormessage exits, show a box with errormessage
|
|
if ($errormessage) {
|
|
&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
|
|
print "<class name='base'>$errormessage\n";
|
|
print " </class>\n";
|
|
&Header::closebox();
|
|
}
|
|
}
|
|
|
|
&Header::closebigbox();
|
|
&Header::closepage();
|