[people/pmueller/ipfire-2.x.git] / html / cgi-bin / captive / index.cgi

#!/usr/bin/perl
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2016  Alexander Marx alexander.marx@ipfire.org                #
#                                                                             #
# This program is free software you can redistribute it and/or modify         #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation, either version 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

use strict;
use CGI ':standard';
use URI::Escape;
use HTML::Entities();
use HTML::Template;

# enable only the following on debugging purpose
#use warnings;
#use CGI::Carp 'fatalsToBrowser';

require '/var/ipfire/general-functions.pl';
require "${General::swroot}/lang.pl";

#Set Variables
my %voucherhash=();
my %clientshash=();
my %cgiparams=();
my %settings=();
my $voucherout="${General::swroot}/captive/voucher_out";
my $clients="${General::swroot}/captive/clients";
my $settingsfile="${General::swroot}/captive/settings";
my $redir=0;
my $errormessage;
my $url=param('redirect');

#Create /var/ipfire/captive/clients if not exist
unless (-f $clients){ system("touch $clients"); }

#Get GUI variables
&getcgihash(\%cgiparams);

#Read settings
&General::readhash("$settingsfile", \%settings) if(-f $settingsfile);

#Actions
if ($cgiparams{'ACTION'} eq "$Lang::tr{'gpl i accept these terms and conditions'}"){
	#Get Clients IP-Address
	my $ip_address = $ENV{X_FORWARDED_FOR} || $ENV{REMOTE_ADDR} ||"";

	#Ask arp to give the corresponding MAC-Address
	my $mac_address = qx(arp -a|grep $ip_address|cut -d ' ' -f 4);
	$mac_address =~ s/\n+\z//;

	&General::readhasharray("$clients", \%clientshash);
	my $key = &General::findhasharraykey(\%clientshash);

	if (!$errormessage){
		foreach my $i (0 .. 5) { $clientshash{$key}[$i] = "";}

		$clientshash{$key}[0] = $mac_address;			#mac address of actual client
		$clientshash{$key}[1] = $ip_address;			#ip address of actual client
		$clientshash{$key}[2] = time();					#actual time in unix seconds (timestamp of first conenction)
		$clientshash{$key}[3] = $settings{'EXPIRE'};	#Expire time in seconds (1day, 1 week ....)
		$clientshash{$key}[4] = $Lang::tr{'Captive auth_lic'};	#Type of license (license or voucher)
		$clientshash{$key}[5] = '';

		&General::writehasharray("$clients", \%clientshash);
		system("/usr/local/bin/captivectrl");
		&General::log("Captive", "Internet Access granted via license-agreement for $ip_address until $clientshash{$key}[3]");
		$redir=1;
	}	
}

if ($cgiparams{'ACTION'} eq "$Lang::tr{'Captive activate'}"){
	my $ip_address;
	my $mac_address;
	my $granted=0;
	#Convert voucherinput to uppercase
	$cgiparams{'VOUCHER'} = uc $cgiparams{'VOUCHER'};
	#Get Clients IP-Address
	$ip_address = $ENV{X_FORWARDED_FOR} || $ENV{REMOTE_ADDR} ||"";
	#Ask arp to give the corresponding MAC-Address
	$mac_address = qx(arp -a|grep $ip_address|cut -d ' ' -f 4);
	$mac_address =~ s/\n+\z//;
	#Check if voucher is valid and write client to clients file, delete voucher from voucherout
	&General::readhasharray("$voucherout", \%voucherhash);
	&General::readhasharray("$clients", \%clientshash);
	foreach my $key (keys %voucherhash) {
		if($voucherhash{$key}[1] eq $cgiparams{'VOUCHER'}){
			#Voucher valid, write to clients, then delete from voucherout
			my $key1 = &General::findhasharraykey(\%clientshash);
			foreach my $i (0 .. 5) { $clientshash{$key1}[$i] = "";}

			$clientshash{$key1}[0] = $mac_address;
			$clientshash{$key1}[1] = $ip_address;
			$clientshash{$key1}[2] = time();
			$clientshash{$key1}[3] = $voucherhash{$key}[2];
			$clientshash{$key1}[4] = $cgiparams{'VOUCHER'};
			$clientshash{$key1}[5] = HTML::Entities::decode_entities($voucherhash{$key}[3]);

			&General::writehasharray("$clients", \%clientshash);
			&General::log("Captive", "Internet Access granted via voucher no. $clientshash{$key1}[4] for $ip_address until $clientshash{$key}[3] Remark: $clientshash{$key1}[7]");

			delete $voucherhash{$key};
			&General::writehasharray("$voucherout", \%voucherhash);
			$granted=1;
			last;
		}
	}
	if($granted==1){
		system("/usr/local/bin/captivectrl");
		$redir=1;
	}else{
		$errormessage="$Lang::tr{'Captive invalid_voucher'}";
	}
}

if($redir == 1){
	print "Status: 302 Moved Temporarily\n";
	print "Location: $url\n";
	print "Connection: close\n";
	print "\n";
	exit 0;
}

#Open HTML Page, load header and css
my $tmpl = HTML::Template->new(
	filename => "/srv/web/ipfire/html/captive/template.html",
	die_on_bad_params => 0
);

$tmpl->param(REDIRECT_URL => $url);

$tmpl->param(AUTH  => $settings{'AUTH'});
$tmpl->param(TITLE => $settings{'TITLE'});
$tmpl->param(ERROR => $errormessage);

# Print header
print "Pragma: no-cache\n";
print "Cache-control: no-cache\n";
print "Connection: close\n";
print "Content-type: text/html\n\n";

# Print rendered template
print $tmpl->output;

sub getcgihash {
	my ($hash, $params) = @_;
	my $cgi = CGI->new ();
	$hash->{'__CGI__'} = $cgi;
	return if ($ENV{'REQUEST_METHOD'} ne 'POST');
	if (!$params->{'wantfile'}) {
		$CGI::DISABLE_UPLOADS = 1;
		$CGI::POST_MAX        = 1024 * 1024;
	} else {
		$CGI::POST_MAX = 10 * 1024 * 1024;
	}
	$cgi->referer() =~ m/^http?\:\/\/([^\/]+)/;
	my $referer = $1;
	$cgi->url() =~ m/^http?\:\/\/([^\/]+)/;
	my $servername = $1;
	return if ($referer ne $servername);

	### Modified for getting multi-vars, split by |
	my %temp = $cgi->Vars();
        foreach my $key (keys %temp) {
		$hash->{$key} = $temp{$key};
		$hash->{$key} =~ s/\0/|/g;
		$hash->{$key} =~ s/^\s*(.*?)\s*$/$1/;
        }

	if (($params->{'wantfile'})&&($params->{'filevar'})) {
		$hash->{$params->{'filevar'}} = $cgi->upload
						($params->{'filevar'});
	}
	return;
}

sub getagb(){
	open( my $handle, "<:utf8", "/var/ipfire/captive/agb.txt" ) or die("$!");
		while(<$handle>){
			$_ = HTML::Entities::decode_entities($_);
			print $_;
		}
	close( $handle );
}
Commit	Line	Data
8b920789 AM	1	#!/usr/bin/perl
	2	###############################################################################
	3	# #
	4	# IPFire.org - A linux based firewall #
	5	# Copyright (C) 2016 Alexander Marx alexander.marx@ipfire.org #
	6	# #
	7	# This program is free software you can redistribute it and/or modify #
	8	# it under the terms of the GNU General Public License as published by #
	9	# the Free Software Foundation, either version 3 of the License, or #
	10	# (at your option) any later version. #
	11	# #
	12	# This program is distributed in the hope that it will be useful, #
	13	# but WITHOUT ANY WARRANTY; without even the implied warranty of #
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
	15	# GNU General Public License for more details. #
	16	# #
	17	# You should have received a copy of the GNU General Public License #
	18	# along with this program. If not, see <http://www.gnu.org/licenses/>. #
	19	# #
	20	###############################################################################
	21
	22	use strict;
	23	use CGI ':standard';
	24	use URI::Escape;
	25	use HTML::Entities();
a2c26388	26	use HTML::Template;
e01c5ab7	27
8b920789 AM	28	# enable only the following on debugging purpose
	29	#use warnings;
	30	#use CGI::Carp 'fatalsToBrowser';
	31
	32	require '/var/ipfire/general-functions.pl';
	33	require "${General::swroot}/lang.pl";
	34
	35	#Set Variables
	36	my %voucherhash=();
	37	my %clientshash=();
	38	my %cgiparams=();
	39	my %settings=();
	40	my $voucherout="${General::swroot}/captive/voucher_out";
	41	my $clients="${General::swroot}/captive/clients";
	42	my $settingsfile="${General::swroot}/captive/settings";
	43	my $redir=0;
	44	my $errormessage;
	45	my $url=param('redirect');
e01c5ab7	46
8b920789 AM	47	#Create /var/ipfire/captive/clients if not exist
	48	unless (-f $clients){ system("touch $clients"); }
	49
	50	#Get GUI variables
	51	&getcgihash(\%cgiparams);
	52
	53	#Read settings
	54	&General::readhash("$settingsfile", \%settings) if(-f $settingsfile);
	55
	56	#Actions
	57	if ($cgiparams{'ACTION'} eq "$Lang::tr{'gpl i accept these terms and conditions'}"){
8b920789 AM	58	#Get Clients IP-Address
	59	my $ip_address = $ENV{X_FORWARDED_FOR} \|\| $ENV{REMOTE_ADDR} \|\|"";
	60
	61	#Ask arp to give the corresponding MAC-Address
	62	my $mac_address = qx(arp -a\|grep $ip_address\|cut -d ' ' -f 4);
	63	$mac_address =~ s/\n+\z//;
	64
	65	&General::readhasharray("$clients", \%clientshash);
11fc9575	66	my $key = &General::findhasharraykey(\%clientshash);
8b920789 AM	67
8b920789 AM	68	if (!$errormessage){
e01c5ab7 AM	69	foreach my $i (0 .. 5) { $clientshash{$key}[$i] = "";}
	70
	71	$clientshash{$key}[0] = $mac_address; #mac address of actual client
	72	$clientshash{$key}[1] = $ip_address; #ip address of actual client
	73	$clientshash{$key}[2] = time(); #actual time in unix seconds (timestamp of first conenction)
	74	$clientshash{$key}[3] = $settings{'EXPIRE'}; #Expire time in seconds (1day, 1 week ....)
	75	$clientshash{$key}[4] = $Lang::tr{'Captive auth_lic'}; #Type of license (license or voucher)
	76	$clientshash{$key}[5] = '';
	77
8b920789 AM	78	&General::writehasharray("$clients", \%clientshash);
	79	system("/usr/local/bin/captivectrl");
	80	&General::log("Captive", "Internet Access granted via license-agreement for $ip_address until $clientshash{$key}[3]");
	81	$redir=1;
	82	}
	83	}
	84
	85	if ($cgiparams{'ACTION'} eq "$Lang::tr{'Captive activate'}"){
	86	my $ip_address;
	87	my $mac_address;
5dc32e58	88	my $granted=0;
8b920789 AM	89	#Convert voucherinput to uppercase
	90	$cgiparams{'VOUCHER'} = uc $cgiparams{'VOUCHER'};
	91	#Get Clients IP-Address
	92	$ip_address = $ENV{X_FORWARDED_FOR} \|\| $ENV{REMOTE_ADDR} \|\|"";
	93	#Ask arp to give the corresponding MAC-Address
	94	$mac_address = qx(arp -a\|grep $ip_address\|cut -d ' ' -f 4);
	95	$mac_address =~ s/\n+\z//;
	96	#Check if voucher is valid and write client to clients file, delete voucher from voucherout
	97	&General::readhasharray("$voucherout", \%voucherhash);
	98	&General::readhasharray("$clients", \%clientshash);
	99	foreach my $key (keys %voucherhash) {
	100	if($voucherhash{$key}[1] eq $cgiparams{'VOUCHER'}){
	101	#Voucher valid, write to clients, then delete from voucherout
8b920789	102	my $key1 = &General::findhasharraykey(\%clientshash);
e01c5ab7 AM	103	foreach my $i (0 .. 5) { $clientshash{$key1}[$i] = "";}
e01c5ab7 AM	104
8b920789 AM	105	$clientshash{$key1}[0] = $mac_address;
8b920789 AM	106	$clientshash{$key1}[1] = $ip_address;
e01c5ab7	107	$clientshash{$key1}[2] = time();
c7e78cc6	108	$clientshash{$key1}[3] = $voucherhash{$key}[2];
8b920789	109	$clientshash{$key1}[4] = $cgiparams{'VOUCHER'};
c7e78cc6	110	$clientshash{$key1}[5] = HTML::Entities::decode_entities($voucherhash{$key}[3]);
e01c5ab7	111
8b920789	112	&General::writehasharray("$clients", \%clientshash);
8b920789 AM	113	&General::log("Captive", "Internet Access granted via voucher no. $clientshash{$key1}[4] for $ip_address until $clientshash{$key}[3] Remark: $clientshash{$key1}[7]");
	114
	115	delete $voucherhash{$key};
	116	&General::writehasharray("$voucherout", \%voucherhash);
5dc32e58	117	$granted=1;
8b920789 AM	118	last;
	119	}
	120	}
5dc32e58 AM	121	if($granted==1){
	122	system("/usr/local/bin/captivectrl");
	123	$redir=1;
	124	}else{
	125	$errormessage="$Lang::tr{'Captive invalid_voucher'}";
	126	}
8b920789 AM	127	}
	128
	129	if($redir == 1){
	130	print "Status: 302 Moved Temporarily\n";
	131	print "Location: $url\n";
	132	print "Connection: close\n";
	133	print "\n";
	134	exit 0;
	135	}
8b920789 AM	136
8b920789 AM	137	#Open HTML Page, load header and css
a2c26388 MT	138	my $tmpl = HTML::Template->new(
	139	filename => "/srv/web/ipfire/html/captive/template.html",
	140	die_on_bad_params => 0
	141	);
8b920789	142
a2c26388	143	$tmpl->param(REDIRECT_URL => $url);
8b920789	144
a2c26388 MT	145	$tmpl->param(AUTH => $settings{'AUTH'});
	146	$tmpl->param(TITLE => $settings{'TITLE'});
	147	$tmpl->param(ERROR => $errormessage);
e01c5ab7	148
a2c26388 MT	149	# Print header
	150	print "Pragma: no-cache\n";
	151	print "Cache-control: no-cache\n";
	152	print "Connection: close\n";
	153	print "Content-type: text/html\n\n";
8b920789	154
a2c26388 MT	155	# Print rendered template
a2c26388 MT	156	print $tmpl->output;
8b920789 AM	157
	158	sub getcgihash {
	159	my ($hash, $params) = @_;
	160	my $cgi = CGI->new ();
	161	$hash->{'__CGI__'} = $cgi;
	162	return if ($ENV{'REQUEST_METHOD'} ne 'POST');
	163	if (!$params->{'wantfile'}) {
	164	$CGI::DISABLE_UPLOADS = 1;
	165	$CGI::POST_MAX = 1024 * 1024;
	166	} else {
	167	$CGI::POST_MAX = 10 * 1024 * 1024;
	168	}
	169	$cgi->referer() =~ m/^http?\:\/\/([^\/]+)/;
	170	my $referer = $1;
	171	$cgi->url() =~ m/^http?\:\/\/([^\/]+)/;
	172	my $servername = $1;
	173	return if ($referer ne $servername);
	174
	175	### Modified for getting multi-vars, split by \|
	176	my %temp = $cgi->Vars();
	177	foreach my $key (keys %temp) {
	178	$hash->{$key} = $temp{$key};
	179	$hash->{$key} =~ s/\0/\|/g;
	180	$hash->{$key} =~ s/^\s(.?)\s*$/$1/;
	181	}
	182
	183	if (($params->{'wantfile'})&&($params->{'filevar'})) {
	184	$hash->{$params->{'filevar'}} = $cgi->upload
	185	($params->{'filevar'});
	186	}
	187	return;
	188	}
	189
	190	sub getagb(){
	191	open( my $handle, "<:utf8", "/var/ipfire/captive/agb.txt" ) or die("$!");
	192	while(<$handle>){
	193	$_ = HTML::Entities::decode_entities($_);
	194	print $_;
	195	}
	196	close( $handle );
	197	}