[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();

# 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
&head();
&error();
&start();

#Functions
sub start(){
	if ($settings{'AUTH'} eq 'VOUCHER'){
		&voucher();
	}else{
		&agb();
	}
}

sub error(){
	if ($errormessage){
		print "<center><div class='title'><br><font color='red'>$errormessage</font><br></div><br>";
	}
}

sub head(){
print<<END
Content-type: text/html\n\n
<html> 
	<head>
		<meta charset="utf-8">
		<title>$settings{'TITLE'}</title>
		<link href="../assets/captive.css" type="text/css" rel="stylesheet">
	</head>
	<body>
END
;
}

sub agb(){
print<<END
	<center>
		<div class="title">
			<h1>$settings{'TITLE'}</h1>
		</div>
		<br>
		<div class="agb">
		<textarea style="width:100%;" rows='40'>
END
;
&getagb();
print<<END
		</textarea>
			<center>
				<form method='post' action='$ENV{'SCRIPT_NAME'}'>
					<br><input type='hidden' name='redirect' value ='$url'><input type='submit' name='ACTION' value="$Lang::tr{'gpl i accept these terms and conditions'}"/>
				</form>
			</center>
		</div>
	</center>
	</body>
	</html>
END
;
}

sub voucher(){
	print<<END
	<center>
		<div class="title">
			<h1>$settings{'TITLE'}</h1>
		</div>
		<br>
		<div class="login">
END
;

print<<END
		<form method='post' action='$ENV{'SCRIPT_NAME'}'>
			<center>
				<table>
					<tr>
						<td>
							<b>$Lang::tr{'Captive voucher'}</b>&nbsp<input type='text' maxlength="8" size='10' style="font-size: 24px;font-weight: bold;" name='VOUCHER'>
						</td>
						<td>
							<input type='hidden' name='redirect' value ='$url'><input type='submit' name='ACTION' value="$Lang::tr{'Captive activate'}"/>
						</td>
					</tr>
				</table>
		</form>
		</div>
		<br>
		<div class="agb">
			<textarea style="width:100%;" rows='40'>
END
;
&getagb();
print<<END
			</textarea>
			<br><br>
		</div>
	</body>
	</html>
END
;
}

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( $handle );
}
Commit	Line	Data
8b920789 AM	1	#!/usr/bin/perl
	2	###############################################################################
	3	# #
	4	# IPFire.org - A linux based firewall #
	5	# Copyright (C) 2016 Alexander Marx alexander.marx@ipfire.org #
	6	# #
	7	# This program is free software you can redistribute it and/or modify #
	8	# it under the terms of the GNU General Public License as published by #
	9	# the Free Software Foundation, either version 3 of the License, or #
	10	# (at your option) any later version. #
	11	# #
	12	# This program is distributed in the hope that it will be useful, #
	13	# but WITHOUT ANY WARRANTY; without even the implied warranty of #
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
	15	# GNU General Public License for more details. #
	16	# #
	17	# You should have received a copy of the GNU General Public License #
	18	# along with this program. If not, see <http://www.gnu.org/licenses/>. #
	19	# #
	20	###############################################################################
	21
	22	use strict;
	23	use CGI ':standard';
	24	use URI::Escape;
	25	use HTML::Entities();
e01c5ab7	26
8b920789 AM	27	# enable only the following on debugging purpose
	28	#use warnings;
	29	#use CGI::Carp 'fatalsToBrowser';
	30
	31	require '/var/ipfire/general-functions.pl';
	32	require "${General::swroot}/lang.pl";
	33
	34	#Set Variables
	35	my %voucherhash=();
	36	my %clientshash=();
	37	my %cgiparams=();
	38	my %settings=();
	39	my $voucherout="${General::swroot}/captive/voucher_out";
	40	my $clients="${General::swroot}/captive/clients";
	41	my $settingsfile="${General::swroot}/captive/settings";
	42	my $redir=0;
	43	my $errormessage;
	44	my $url=param('redirect');
e01c5ab7	45
8b920789 AM	46	#Create /var/ipfire/captive/clients if not exist
	47	unless (-f $clients){ system("touch $clients"); }
	48
	49	#Get GUI variables
	50	&getcgihash(\%cgiparams);
	51
	52	#Read settings
	53	&General::readhash("$settingsfile", \%settings) if(-f $settingsfile);
	54
	55	#Actions
	56	if ($cgiparams{'ACTION'} eq "$Lang::tr{'gpl i accept these terms and conditions'}"){
8b920789 AM	57	#Get Clients IP-Address
	58	my $ip_address = $ENV{X_FORWARDED_FOR} \|\| $ENV{REMOTE_ADDR} \|\|"";
	59
	60	#Ask arp to give the corresponding MAC-Address
	61	my $mac_address = qx(arp -a\|grep $ip_address\|cut -d ' ' -f 4);
	62	$mac_address =~ s/\n+\z//;
	63
	64	&General::readhasharray("$clients", \%clientshash);
11fc9575	65	my $key = &General::findhasharraykey(\%clientshash);
8b920789 AM	66
8b920789 AM	67	if (!$errormessage){
e01c5ab7 AM	68	foreach my $i (0 .. 5) { $clientshash{$key}[$i] = "";}
	69
	70	$clientshash{$key}[0] = $mac_address; #mac address of actual client
	71	$clientshash{$key}[1] = $ip_address; #ip address of actual client
	72	$clientshash{$key}[2] = time(); #actual time in unix seconds (timestamp of first conenction)
	73	$clientshash{$key}[3] = $settings{'EXPIRE'}; #Expire time in seconds (1day, 1 week ....)
	74	$clientshash{$key}[4] = $Lang::tr{'Captive auth_lic'}; #Type of license (license or voucher)
	75	$clientshash{$key}[5] = '';
	76
8b920789 AM	77	&General::writehasharray("$clients", \%clientshash);
	78	system("/usr/local/bin/captivectrl");
	79	&General::log("Captive", "Internet Access granted via license-agreement for $ip_address until $clientshash{$key}[3]");
	80	$redir=1;
	81	}
	82	}
	83
	84	if ($cgiparams{'ACTION'} eq "$Lang::tr{'Captive activate'}"){
	85	my $ip_address;
	86	my $mac_address;
5dc32e58	87	my $granted=0;
8b920789 AM	88	#Convert voucherinput to uppercase
	89	$cgiparams{'VOUCHER'} = uc $cgiparams{'VOUCHER'};
	90	#Get Clients IP-Address
	91	$ip_address = $ENV{X_FORWARDED_FOR} \|\| $ENV{REMOTE_ADDR} \|\|"";
	92	#Ask arp to give the corresponding MAC-Address
	93	$mac_address = qx(arp -a\|grep $ip_address\|cut -d ' ' -f 4);
	94	$mac_address =~ s/\n+\z//;
	95	#Check if voucher is valid and write client to clients file, delete voucher from voucherout
	96	&General::readhasharray("$voucherout", \%voucherhash);
	97	&General::readhasharray("$clients", \%clientshash);
	98	foreach my $key (keys %voucherhash) {
	99	if($voucherhash{$key}[1] eq $cgiparams{'VOUCHER'}){
	100	#Voucher valid, write to clients, then delete from voucherout
8b920789	101	my $key1 = &General::findhasharraykey(\%clientshash);
e01c5ab7 AM	102	foreach my $i (0 .. 5) { $clientshash{$key1}[$i] = "";}
e01c5ab7 AM	103
8b920789 AM	104	$clientshash{$key1}[0] = $mac_address;
8b920789 AM	105	$clientshash{$key1}[1] = $ip_address;
e01c5ab7	106	$clientshash{$key1}[2] = time();
c7e78cc6	107	$clientshash{$key1}[3] = $voucherhash{$key}[2];
8b920789	108	$clientshash{$key1}[4] = $cgiparams{'VOUCHER'};
c7e78cc6	109	$clientshash{$key1}[5] = HTML::Entities::decode_entities($voucherhash{$key}[3]);
e01c5ab7	110
8b920789	111	&General::writehasharray("$clients", \%clientshash);
8b920789 AM	112	&General::log("Captive", "Internet Access granted via voucher no. $clientshash{$key1}[4] for $ip_address until $clientshash{$key}[3] Remark: $clientshash{$key1}[7]");
	113
	114	delete $voucherhash{$key};
	115	&General::writehasharray("$voucherout", \%voucherhash);
5dc32e58	116	$granted=1;
8b920789 AM	117	last;
	118	}
	119	}
5dc32e58 AM	120	if($granted==1){
	121	system("/usr/local/bin/captivectrl");
	122	$redir=1;
	123	}else{
	124	$errormessage="$Lang::tr{'Captive invalid_voucher'}";
	125	}
8b920789 AM	126	}
	127
	128	if($redir == 1){
	129	print "Status: 302 Moved Temporarily\n";
	130	print "Location: $url\n";
	131	print "Connection: close\n";
	132	print "\n";
	133	exit 0;
	134	}
8b920789 AM	135
	136	#Open HTML Page, load header and css
	137	&head();
	138	&error();
	139	&start();
	140
	141	#Functions
8b920789 AM	142	sub start(){
	143	if ($settings{'AUTH'} eq 'VOUCHER'){
	144	&voucher();
	145	}else{
	146	&agb();
	147	}
	148	}
	149
	150	sub error(){
	151	if ($errormessage){
5dc32e58	152	print "<center><div class='title'><br><font color='red'>$errormessage</font><br></div><br>";
8b920789 AM	153	}
	154	}
	155
	156	sub head(){
	157	print<<END
	158	Content-type: text/html\n\n
	159	<html>
	160	<head>
	161	<meta charset="utf-8">
	162	<title>$settings{'TITLE'}</title>
	163	<link href="../assets/captive.css" type="text/css" rel="stylesheet">
	164	</head>
5dc32e58	165	<body>
8b920789 AM	166	END
	167	;
	168	}
e01c5ab7	169
8b920789 AM	170	sub agb(){
8b920789 AM	171	print<<END
8b920789 AM	172	<center>
8b920789 AM	173	<div class="title">
e14adf75	174	<h1>$settings{'TITLE'}</h1>
8b920789 AM	175	</div>
	176	<br>
	177	<div class="agb">
	178	<textarea style="width:100%;" rows='40'>
	179	END
	180	;
	181	&getagb();
	182	print<<END
	183	</textarea>
	184	<center>
	185	<form method='post' action='$ENV{'SCRIPT_NAME'}'>
	186	<br><input type='hidden' name='redirect' value ='$url'><input type='submit' name='ACTION' value="$Lang::tr{'gpl i accept these terms and conditions'}"/>
	187	</form>
	188	</center>
	189	</div>
	190	</center>
	191	</body>
	192	</html>
	193	END
	194	;
	195	}
	196
	197	sub voucher(){
	198	print<<END
8b920789 AM	199	<center>
8b920789 AM	200	<div class="title">
e14adf75	201	<h1>$settings{'TITLE'}</h1>
8b920789 AM	202	</div>
	203	<br>
	204	<div class="login">
	205	END
	206	;
	207
	208	print<<END
	209	<form method='post' action='$ENV{'SCRIPT_NAME'}'>
	210	<center>
	211	<table>
	212	<tr>
	213	<td>
	214	<b>$Lang::tr{'Captive voucher'}</b>&nbsp<input type='text' maxlength="8" size='10' style="font-size: 24px;font-weight: bold;" name='VOUCHER'>
	215	</td>
	216	<td>
facfdcd0	217	<input type='hidden' name='redirect' value ='$url'><input type='submit' name='ACTION' value="$Lang::tr{'Captive activate'}"/>
8b920789 AM	218	</td>
	219	</tr>
	220	</table>
	221	</form>
	222	</div>
	223	<br>
	224	<div class="agb">
	225	<textarea style="width:100%;" rows='40'>
	226	END
	227	;
	228	&getagb();
	229	print<<END
	230	</textarea>
	231	<br><br>
	232	</div>
	233	</body>
	234	</html>
	235	END
	236	;
	237	}
	238
	239	sub getcgihash {
	240	my ($hash, $params) = @_;
	241	my $cgi = CGI->new ();
	242	$hash->{'__CGI__'} = $cgi;
	243	return if ($ENV{'REQUEST_METHOD'} ne 'POST');
	244	if (!$params->{'wantfile'}) {
	245	$CGI::DISABLE_UPLOADS = 1;
	246	$CGI::POST_MAX = 1024 * 1024;
	247	} else {
	248	$CGI::POST_MAX = 10 * 1024 * 1024;
	249	}
	250	$cgi->referer() =~ m/^http?\:\/\/([^\/]+)/;
	251	my $referer = $1;
	252	$cgi->url() =~ m/^http?\:\/\/([^\/]+)/;
	253	my $servername = $1;
	254	return if ($referer ne $servername);
	255
	256	### Modified for getting multi-vars, split by \|
	257	my %temp = $cgi->Vars();
	258	foreach my $key (keys %temp) {
	259	$hash->{$key} = $temp{$key};
	260	$hash->{$key} =~ s/\0/\|/g;
	261	$hash->{$key} =~ s/^\s(.?)\s*$/$1/;
	262	}
	263
	264	if (($params->{'wantfile'})&&($params->{'filevar'})) {
	265	$hash->{$params->{'filevar'}} = $cgi->upload
	266	($params->{'filevar'});
	267	}
	268	return;
	269	}
	270
	271	sub getagb(){
	272	open( my $handle, "<:utf8", "/var/ipfire/captive/agb.txt" ) or die("$!");
	273	while(<$handle>){
	274	$_ = HTML::Entities::decode_entities($_);
	275	print $_;
	276	}
	277	close( $handle );
	278	}