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refactor: normalize range checks into one clear path

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Sandro CURY CAZZANIGA
2025-12-29 15:34:33 +01:00
parent 7005e0852a
commit b203bcad78
1 changed files with 24 additions and 24 deletions
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48
lib/Urupam/Validation.pm
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@@ -95,39 +95,39 @@ sub _is_private_ipv4 {
sub _is_private_ipv6 { sub _is_private_ipv6 {
my ( $self, $ip ) = @_; my ( $self, $ip ) = @_;
return 0 unless defined $ip;
$ip = lc($ip); $ip = lc($ip);
$ip =~ s/^\[|\]$//g; $ip =~ s/^\[|\]$//g;
return 1 if $ip eq '::1'; return 1 if $ip eq '::1';
return 1 if $ip eq '::'; return 1 if $ip eq '::';
return 1
if $ip =~ /^::ffff:(127\.|192\.168\.|10\.|172\.(1[6-9]|2[0-9]|3[01])\.)/;
if ( $ip =~ /^([0-9a-f]{0,4}:)+[0-9a-f]{0,4}$/ || $ip =~ /^::/ ) { if ( $ip =~ /^::ffff:(.+)$/ ) {
my @parts = split /:/, $ip; return $self->_is_private_ipv4($1) ? 1 : 0;
my $first_part = $parts[0] || ''; }
if ( length($first_part) > 0 ) { return 0 unless $ip =~ /^([0-9a-f]{0,4}:)+[0-9a-f]{0,4}$/ || $ip =~ /^::/;
my $first = hex($first_part);
if ( $first >= 0xfc && $first <= 0xfd ) { my @parts = split /:/, $ip;
return 0 unless @parts > 0;
my $first_part = $parts[0] || '';
return 0 unless length($first_part) > 0;
my $first = hex($first_part);
if ( $first >= 0xfc && $first <= 0xfd ) {
return 1;
}
if ( $first == 0xfe && @parts > 1 ) {
my $second_part = $parts[1] || '';
if ( length($second_part) > 0 ) {
my $second = hex($second_part);
if ( $second >= 0x80 && $second <= 0xbf ) {
return 1; return 1;
} }
if ( $first == 0xfe && @parts > 1 ) {
my $second_part = $parts[1] || '';
if ( length($second_part) > 0 ) {
my $second = hex($second_part);
if ( $second >= 0x80 && $second <= 0xbf ) {
return 1;
}
}
}
}
if ( $ip =~ /^fc[0-9a-f]{2}:/i || $ip =~ /^fd[0-9a-f]{2}:/i ) {
return 1;
}
if ( $ip =~ /^fe[89ab][0-9a-f]:/i ) {
return 1;
} }
} }