mirror of https://github.com/pragma-/pbot.git
39 lines
946 B
Perl
39 lines
946 B
Perl
package PBot::Utils::ValidateString;
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use warnings;
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use strict;
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use feature 'unicode_strings';
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require Exporter;
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our @ISA = qw/Exporter/;
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our @EXPORT = qw/validate_string/;
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use JSON;
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sub validate_string {
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my ($string, $max_length) = @_;
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return $string if not defined $string or not length $string;
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$max_length = 1024 * 8 if not defined $max_length;
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local $@;
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eval {
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my $h = decode_json($string);
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foreach my $k (keys %$h) { $h->{$k} = substr $h->{$k}, 0, $max_length unless $max_length <= 0; }
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$string = encode_json($h);
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};
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if ($@) {
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# not a json string
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$string = substr $string, 0, $max_length unless $max_length <= 0;
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}
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# $string =~ s/(\P{PosixGraph})/my $ch = $1; if ($ch =~ m{[\s\x03\x02\x1d\x1f\x16\x0f]}) { $ch } else { sprintf "\\x%02X", ord $ch }/ge;
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# $string = substr $string, 0, $max_length unless $max_length <= 0;
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return $string;
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}
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1;
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