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Added ; check in cleaning function to help prevent injection attacks

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bluesaxman 2021-05-07 14:50:23 -06:00
parent 3b487967dc
commit f121eff48b
1 changed files with 4 additions and 4 deletions
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8
shomble/get.pl
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@ -35,9 +35,9 @@ sub soft_die {
sub clean_input { sub clean_input {
my $input = shift; my $input = shift;
unless ($input) { return ""; } unless ($input) { return ""; }
if ($input =~ m!%2F!) { print "Location: /hax\r\n\r\n"; exit; }
$input =~ s!%(..)!chr hex $1!ge; $input =~ s!%(..)!chr hex $1!ge;
$input =~ s!\+! !g; $input =~ s!\+! !g;
$input =~ s!;!\;!g; #antivaxx
return $input; return $input;
} }
@ -55,9 +55,9 @@ if ( "rand" eq $directive ) {
$sth = $db->prepare('SELECT * FROM posts ORDER BY DATE DESC LIMIT 1'); $sth = $db->prepare('SELECT * FROM posts ORDER BY DATE DESC LIMIT 1');
} elsif ( "range" eq $directive ) { } elsif ( "range" eq $directive ) {
# select range starting with lastest as 1 # select range starting with lastest as 1
my $low = $get_params[0]; my $start = $get_params[0];
my $high = $get_params[1]; my $count = $get_params[1];
$sth = $db->prepare('SELECT * FROM posts ORDER BY DATE DESC LIMIT '.$low.', '.$high); $sth = $db->prepare('SELECT * FROM posts ORDER BY DATE DESC LIMIT '.$start.', '.$count);
} else { } else {
# select the last 10 posts # select the last 10 posts
$sth = $db->prepare('SELECT * FROM posts ORDER BY DATE DESC LIMIT 10'); $sth = $db->prepare('SELECT * FROM posts ORDER BY DATE DESC LIMIT 10');