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|
#!/usr/bin/perl
$| = 1;
open(STDERR, ">&STDOUT");
use warnings;
use CGI;
use Crypt::CBC;
use IPC::Open2;
use MIME::Base32 qw( RFC );
use Captcha::reCAPTCHA;
use Piny::Auth;
my $auth = Piny::Auth->new( );
my $cipher = Crypt::CBC->new( "-key" => $auth->key, "-cipher" => "Blowfish" );
$q = CGI->new;
print( "Content-type: text/plain\n\n" );
if( scalar( $q->param("n") ) && scalar( $q->param("a") ) && scalar( $q->param("p") ) ) {
my $pass = scalar( $q->param("p") );
my $code;
if ( scalar( $q->param("h") ) ) {
$pass = $cipher->decrypt( MIME::Base32::decode( $pass ) );
$code = $auth->hash( { "n" => scalar( $q->param( "n" ) ), "a" => scalar( $q->param( "a" ) ), "p" => $pass } );
} else {
$code = $auth->hash( { "n" => scalar( $q->param( "n" ) ), "a" => scalar( $q->param( "a" ) ), "p" => $pass } );
$pass = MIME::Base32::encode( $cipher->encrypt( $pass ) );
};
if ( scalar( $q->param("h") ) ) {
if ( scalar( $q->param("h") ) eq $code ) {
unless( open2( OUT, IN, "/usr/bin/sudo", "/usr/sbin/newuser", "--batch", scalar( $q->param("a") ), scalar( $q->param("n") ) ) ) {
print "could not execute newrepo";
die;
};
# make things flushier
select((select(IN), $| = 1)[0]);
select((select(OUT), $| = 1)[0]);
print( IN $pass . "\n" );
close( IN );
while( <OUT> ) {
print;
};
} else { # Invalid hash
print( "I'm sorry, the link you followed is invalid.\n" );
};
} else { # No hash, they need one sent to their address
# CAPTCHA check
if ( -f "/etc/recaptcha/private.key" ) {
if ( scalar( $q->param('recaptcha_response_field') ) && scalar( $q->param('recaptcha_challenge_field') ) ) {
open(RECAPTCHA, '/etc/recaptcha/private.key') || ( print "Can't read recaptcha key: [$!]\n" && exit 0 );
my $recaptchakey = <RECAPTCHA>;
close (RECAPTCHA);
chomp($recaptchakey);
my $c = Captcha::reCAPTCHA->new;
my $result = $c->check_answer( $recaptchakey, $ENV{'REMOTE_ADDR'}, scalar( $q->param( 'recaptcha_challenge_field' ) ), scalar( $q->param( 'recaptcha_response_field' ) ) );
if ( $result->{is_valid} ) {
print "Good recaptcha submission.\n"
} else {
print "Bad recaptcha submission: $result->{error}\n";
exit 0;
};
} else {
print( "Missing recaptcha parameters." );
exit 0;
};
};
print( "Dispatching email to " . scalar( $q->param("a") ) . "...\n" );
unless( open( MAIL, "|/usr/lib/sendmail -t" ) ) {
print "could not execute sendmail";
die;
};
print( MAIL "To: " . scalar( $q->param("a") ) . "\n" );
print( MAIL "Subject: Verifying account " . scalar( $q->param("n") ) . "\n" );
print( MAIL "Content-Type: text/plain; charset=us-ascii\n\n" );
print( MAIL "http" );
if( $ENV{"HTTPS"} eq "on" ) {
print( MAIL "s" );
};
print( MAIL "://" . $ENV{"SERVER_NAME"} . $ENV{"SCRIPT_NAME"} . "?" );
print( MAIL "h=" . CGI::escape( $code ) );
print( MAIL "&n=" . CGI::escape( scalar( $q->param("n") ) ) );
print( MAIL "&a=" . CGI::escape( scalar( $q->param("a") ) ) );
print( MAIL "&p=" . CGI::escape( $pass ) );
print( MAIL "\n");
close( MAIL );
print( "Done!" );
};
} else {
print( "Missing parameters." );
};
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