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package Paws::WAF::SizeConstraint; |
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use Moose; |
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has ComparisonOperator => (is => 'ro', isa => 'Str', required => 1); |
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has FieldToMatch => (is => 'ro', isa => 'Paws::WAF::FieldToMatch', required => 1); |
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has Size => (is => 'ro', isa => 'Int', required => 1); |
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has TextTransformation => (is => 'ro', isa => 'Str', required => 1); |
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1; |
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### main pod documentation begin ### |
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=head1 NAME |
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Paws::WAF::SizeConstraint |
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=head1 USAGE |
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This class represents one of two things: |
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=head3 Arguments in a call to a service |
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Use the attributes of this class as arguments to methods. You shouldn't make instances of this class. |
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Each attribute should be used as a named argument in the calls that expect this type of object. |
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As an example, if Att1 is expected to be a Paws::WAF::SizeConstraint object: |
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$service_obj->Method(Att1 => { ComparisonOperator => $value, ..., TextTransformation => $value }); |
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=head3 Results returned from an API call |
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Use accessors for each attribute. If Att1 is expected to be an Paws::WAF::SizeConstraint object: |
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$result = $service_obj->Method(...); |
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$result->Att1->ComparisonOperator |
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=head1 DESCRIPTION |
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Specifies a constraint on the size of a part of the web request. AWS |
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WAF uses the C<Size>, C<ComparisonOperator>, and C<FieldToMatch> to |
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build an expression in the form of "C<Size> C<ComparisonOperator> size |
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in bytes of C<FieldToMatch>". If that expression is true, the |
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C<SizeConstraint> is considered to match. |
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=head1 ATTRIBUTES |
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=head2 B<REQUIRED> ComparisonOperator => Str |
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The type of comparison you want AWS WAF to perform. AWS WAF uses this |
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in combination with the provided C<Size> and C<FieldToMatch> to build |
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an expression in the form of "C<Size> C<ComparisonOperator> size in |
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bytes of C<FieldToMatch>". If that expression is true, the |
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C<SizeConstraint> is considered to match. |
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B<EQ>: Used to test if the C<Size> is equal to the size of the |
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C<FieldToMatch> |
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B<NE>: Used to test if the C<Size> is not equal to the size of the |
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C<FieldToMatch> |
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B<LE>: Used to test if the C<Size> is less than or equal to the size of |
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the C<FieldToMatch> |
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B<LT>: Used to test if the C<Size> is strictly less than the size of |
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the C<FieldToMatch> |
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B<GE>: Used to test if the C<Size> is greater than or equal to the size |
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of the C<FieldToMatch> |
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B<GT>: Used to test if the C<Size> is strictly greater than the size of |
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the C<FieldToMatch> |
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=head2 B<REQUIRED> FieldToMatch => L<Paws::WAF::FieldToMatch> |
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Specifies where in a web request to look for the size constraint. |
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=head2 B<REQUIRED> Size => Int |
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The size in bytes that you want AWS WAF to compare against the size of |
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the specified C<FieldToMatch>. AWS WAF uses this in combination with |
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C<ComparisonOperator> and C<FieldToMatch> to build an expression in the |
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form of "C<Size> C<ComparisonOperator> size in bytes of |
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C<FieldToMatch>". If that expression is true, the C<SizeConstraint> is |
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considered to match. |
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Valid values for size are 0 - 21474836480 bytes (0 - 20 GB). |
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If you specify C<URI> for the value of C<Type>, the / in the URI counts |
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as one character. For example, the URI C</logo.jpg> is nine characters |
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long. |
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=head2 B<REQUIRED> TextTransformation => Str |
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Text transformations eliminate some of the unusual formatting that |
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attackers use in web requests in an effort to bypass AWS WAF. If you |
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specify a transformation, AWS WAF performs the transformation on |
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C<FieldToMatch> before inspecting a request for a match. |
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Note that if you choose C<BODY> for the value of C<Type>, you must |
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choose C<NONE> for C<TextTransformation> because CloudFront forwards |
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only the first 8192 bytes for inspection. |
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B<NONE> |
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Specify C<NONE> if you don't want to perform any text transformations. |
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B<CMD_LINE> |
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When you're concerned that attackers are injecting an operating system |
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command line command and using unusual formatting to disguise some or |
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all of the command, use this option to perform the following |
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transformations: |
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=over |
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=item * |
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Delete the following characters: \ " ' ^ |
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=item * |
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Delete spaces before the following characters: / ( |
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=item * |
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Replace the following characters with a space: , ; |
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=item * |
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Replace multiple spaces with one space |
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=item * |
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Convert uppercase letters (A-Z) to lowercase (a-z) |
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=back |
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B<COMPRESS_WHITE_SPACE> |
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Use this option to replace the following characters with a space |
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character (decimal 32): |
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=over |
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=item * |
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\f, formfeed, decimal 12 |
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=item * |
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\t, tab, decimal 9 |
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=item * |
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\n, newline, decimal 10 |
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=item * |
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\r, carriage return, decimal 13 |
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=item * |
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\v, vertical tab, decimal 11 |
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=item * |
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non-breaking space, decimal 160 |
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=back |
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C<COMPRESS_WHITE_SPACE> also replaces multiple spaces with one space. |
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B<HTML_ENTITY_DECODE> |
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Use this option to replace HTML-encoded characters with unencoded |
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characters. C<HTML_ENTITY_DECODE> performs the following operations: |
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=over |
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=item * |
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Replaces C<(ampersand)quot;> with C<"> |
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=item * |
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Replaces C<(ampersand)nbsp;> with a non-breaking space, decimal 160 |
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=item * |
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Replaces C<(ampersand)lt;> with a "less than" symbol |
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=item * |
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Replaces C<(ampersand)gt;> with C<E<gt>> |
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=item * |
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Replaces characters that are represented in hexadecimal format, |
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C<(ampersand)(hash)xhhhh;>, with the corresponding characters |
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=item * |
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Replaces characters that are represented in decimal format, |
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C<(ampersand)(hash)nnnn;>, with the corresponding characters |
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=back |
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B<LOWERCASE> |
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Use this option to convert uppercase letters (A-Z) to lowercase (a-z). |
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B<URL_DECODE> |
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Use this option to decode a URL-encoded value. |
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=head1 SEE ALSO |
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This class forms part of L<Paws>, describing an object used in L<Paws::WAF> |
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=head1 BUGS and CONTRIBUTIONS |
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The source code is located here: https://github.com/pplu/aws-sdk-perl |
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Please report bugs to: https://github.com/pplu/aws-sdk-perl/issues |
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=cut |
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