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package WWW::FieldValidator; |
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145947
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use 5.014; |
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use strict; |
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use warnings; |
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our $VERSION = "1.19"; |
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# The following constants represent the validator types that can be used to |
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# validate the specified user input. |
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use constant WELL_FORMED_EMAIL => 1; |
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use constant MIN_STR_LENGTH => 2; |
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use constant MAX_STR_LENGTH => 5; |
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use constant REGEX_MATCH => 3; |
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use constant USER_DEFINED_SUB => 4; |
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# Create a new Validator object. |
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sub new { |
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my $class = shift; |
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# The type of validation the instance will use |
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my $validatorType = shift; |
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# The error feedback to return if the test data does not pass validation |
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my $feedback = shift; |
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my $self = {}; |
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bless($self, $class); |
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$self->{feedback} = $feedback; |
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$self->{validatorType} = $validatorType; |
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if ($validatorType == MIN_STR_LENGTH) { |
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# Set min length to 1 by default |
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my $minLength = shift || 1; |
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$self->{minLength} = $minLength; |
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} |
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elsif ($validatorType == REGEX_MATCH) { |
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my $regex = shift; |
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$self->{regex} = $regex; |
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} |
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elsif ($validatorType == USER_DEFINED_SUB) { |
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my $subRef = shift; |
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$self->{usub} = $subRef; |
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} |
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elsif ($validatorType == MAX_STR_LENGTH) { |
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# Set max_length to 30 by default |
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my $maxLength = shift || 30; |
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$self->{maxLength} = $maxLength; |
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} |
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# is_optional - if true, field is only validated if it's not empty |
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my $isOptional = shift || 0; |
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$self->{isOptional} = $isOptional; |
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return $self; |
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} |
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#----------------------------------------------------------------------------- |
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# These methods should really be treated as private because the Form module |
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# handles calling these methods, for most purposes all you will need to know |
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# how to do is to instantiate FieldValidators. |
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#----------------------------------------------------------------------------- |
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# Checks to see what the validation type of the instance is and conditionally |
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# calls the appropriate validation method. |
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sub validate { |
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2298
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my $self = shift; |
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my $input = shift; # User entered data |
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# If the field is optional and is empty, don't validate |
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return 1 if ($self->{isOptional} && !$input); |
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100
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if ($self->{validatorType} == WELL_FORMED_EMAIL) { |
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83
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84
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2
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return $self->_validateEmail($input); |
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} |
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elsif ($self->{validatorType} == MIN_STR_LENGTH) { |
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return $self->_validateStrLength($input, $self->{minLength}); |
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} |
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elsif ($self->{validatorType} == REGEX_MATCH) { |
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return $self->_validateRegex($input, $self->{regex}); |
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} |
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elsif ($self->{validatorType} == USER_DEFINED_SUB) { |
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return $self->{usub}($input); |
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} |
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elsif ($self->{validatorType} == MAX_STR_LENGTH) { |
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return $self->_validateMaxStrLength($input, $self->{maxLength}); |
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} |
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} |
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sub getFeedback { |
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my $self = shift; |
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return $self->{feedback}; |
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} |
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*get_feedback = \&getFeedback; |
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# Checks to see if input is a well formed email address. |
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# TODO: Maybe use Email::Valid for this? |
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sub _validateEmail { |
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my $self = shift; |
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my $input = shift || ''; |
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return ($input =~ /^[\w\-\.\+]+@([\w\-]+)(\.([\w\-]+))+$/); |
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} |
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# Checks to see if input is a minimum string length. |
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sub _validateStrLength { |
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my $self = shift; |
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my $input = shift; |
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return (length($input) >= $self->{minLength}); |
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} |
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sub _validateMaxStrLength { |
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my $self = shift; |
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my $input = shift; |
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return (length($input) <= $self->{maxLength}); |
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} |
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136
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# Checks to see if input matches the specified pattern. |
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sub _validateRegex { |
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my $self = shift; |
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my $input = shift // ''; |
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141
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11
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return ($input =~ /$self->{regex}/); |
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} |
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144
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1; |
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146
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__END__ |