kivitendo/SL/DB/Helper/IBANValidation.pm @ 7019e2b6
| 07a768c3 | Moritz Bunkus | package SL::DB::Helper::IBANValidation;
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use strict;
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use Algorithm::CheckDigits ();
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use Carp;
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use SL::Locale::String qw(t8);
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my $_validater;
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my %_countries = (
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AT => { len => 20, name => t8('Austria') },
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BE => { len => 16, name => t8('Belgium') },
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CH => { len => 21, name => t8('Switzerland') },
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CZ => { len => 24, name => t8('Czech Republic') },
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DE => { len => 22, name => t8('Germany') },
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DK => { len => 18, name => t8('Denmark') },
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FR => { len => 27, name => t8('France') },
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IT => { len => 27, name => t8('Italy') },
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LU => { len => 20, name => t8('Luxembourg') },
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NL => { len => 18, name => t8('Netherlands') },
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PL => { len => 28, name => t8('Poland') },
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);
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sub _validate {
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my ($self, $attribute) = @_;
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my $iban = $self->$attribute // '';
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$iban =~ s{\s+}{}g;
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return () unless length($iban);
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$_validater //= Algorithm::CheckDigits::CheckDigits('iban');
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return ($::locale->text("The value '#1' is not a valid IBAN.", $iban)) if !$_validater->is_valid($iban);
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my $country = $_countries{substr($iban, 0, 2)};
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return () if !$country || (length($iban) == $country->{len});
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return ($::locale->text("The IBAN '#1' is not valid as IBANs in #2 must be exactly #3 characters long.", $iban, $country->{name}, $country->{len}));
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}
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sub import {
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my ($package, @attributes) = @_;
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my $caller_package = caller;
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@attributes = qw(iban) unless @attributes;
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no strict 'refs';
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*{ $caller_package . '::validate_ibans' } = sub {
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my ($self) = @_;
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return map { SL::DB::Helper::IBANValidation::_validate($self, $_) } @attributes;
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};
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}
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1;
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__END__
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=pod
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=encoding utf8
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=head1 NAME
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SL::DB::Helper::IBANValidation - Mixin for validating IBAN attributes
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=head1 SYNOPSIS
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package SL::DB::SomeObject;
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use SL::DB::Helper::IBANValidation [ ATTRIBUTES ];
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sub validate {
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my ($self) = @_;
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my @errors;
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…
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push @errors, $self->validate_ibans;
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return @errors;
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}
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This mixin provides a function C<validate_ibans> that returns an list
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of error messages, one for each attribute that fails the IBAN
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validation. If all attributes are valid or empty then an empty list
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is returned.
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The names of attributes to check can be given as a import list to the
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mixin package. If no attributes are given the single attribute C<iban>
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is used.
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=head1 FUNCTIONS
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=over 4
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=item C<validate_ibans>
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This function iterates over all configured attributes and validates
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their content according to the IBAN standard. An attribute that is
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undefined, empty or consists solely of whitespace is considered valid,
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too.
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The function returns a list of human-readable error messages suitable
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for use in a general C<validate> function (see SYNOPSIS). For each
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attribute failing the check the list will include one error message.
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If all attributes are valid then an empty list is returned.
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=back
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=head1 BUGS
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Nothing here yet.
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=head1 AUTHOR
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Moritz Bunkus E<lt>m.bunkus@linet-services.deE<gt>
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=cut
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