Class: Aws::WAFV2::Types::SizeConstraintStatement

Inherits:

Struct

• Object
• Struct
• Aws::WAFV2::Types::SizeConstraintStatement

Defined in:

gems/aws-sdk-wafv2/lib/aws-sdk-wafv2/types.rb

Overview

A rule statement that compares a number of bytes against the size of a request component, using a comparison operator, such as greater than (>) or less than (<). For example, you can use a size constraint statement to look for query strings that are longer than 100 bytes.

If you configure WAF to inspect the request body, WAF inspects only the number of bytes in the body up to the limit for the web ACL and protected resource type. If you know that the request body for your web requests should never exceed the inspection limit, you can use a size constraint statement to block requests that have a larger request body size. For more information about the inspection limits, see Body and JsonBody settings for the FieldToMatch data type.

If you choose URI for the value of Part of the request to filter on, the slash (/) in the URI counts as one character. For example, the URI /logo.jpg is nine characters long.

See Also:

• AWS API Documentation

Constant Summary

SENSITIVE =

[]

Instance Attribute Summary

• #comparison_operator ⇒ String

  The operator to use to compare the request part to the size setting.

• #field_to_match ⇒ Types::FieldToMatch

  The part of the web request that you want WAF to inspect.

• #pre_parse_text_transformations ⇒ Array<Types::PreParseTextTransformation>

  Pre-parse text transformations normalize the raw query string before WAF parses it into individual query arguments.

• #size ⇒ Integer

  The size, in byte, to compare to the request part, after any transformations.

• #text_transformations ⇒ Array<Types::TextTransformation>

  Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass detection.

Instance Attribute Details

#comparison_operator ⇒ String

The operator to use to compare the request part to the size setting.

Returns:

• (String)

# File 'gems/aws-sdk-wafv2/lib/aws-sdk-wafv2/types.rb', line 9974

class SizeConstraintStatement < Struct.new(
  :field_to_match,
  :comparison_operator,
  :size,
  :text_transformations,
  :pre_parse_text_transformations)
  SENSITIVE = []
  include Aws::Structure
end

#field_to_match ⇒ Types::FieldToMatch

The part of the web request that you want WAF to inspect.

Returns:

• (Types::FieldToMatch)

# File 'gems/aws-sdk-wafv2/lib/aws-sdk-wafv2/types.rb', line 9974

class SizeConstraintStatement < Struct.new(
  :field_to_match,
  :comparison_operator,
  :size,
  :text_transformations,
  :pre_parse_text_transformations)
  SENSITIVE = []
  include Aws::Structure
end

#pre_parse_text_transformations ⇒ Array<Types::PreParseTextTransformation>

Pre-parse text transformations normalize the raw query string before WAF parses it into individual query arguments. They are applied before the standard text transformations. Pre-parse text transformations are only supported when FieldToMatch is SingleQueryArgument or AllQueryArguments. You can specify up to 10 pre-parse text transformations per rule statement.

Returns:

• (Array<Types::PreParseTextTransformation>)

# File 'gems/aws-sdk-wafv2/lib/aws-sdk-wafv2/types.rb', line 9974

class SizeConstraintStatement < Struct.new(
  :field_to_match,
  :comparison_operator,
  :size,
  :text_transformations,
  :pre_parse_text_transformations)
  SENSITIVE = []
  include Aws::Structure
end

#size ⇒ Integer

The size, in byte, to compare to the request part, after any transformations.

Returns:

• (Integer)

# File 'gems/aws-sdk-wafv2/lib/aws-sdk-wafv2/types.rb', line 9974

class SizeConstraintStatement < Struct.new(
  :field_to_match,
  :comparison_operator,
  :size,
  :text_transformations,
  :pre_parse_text_transformations)
  SENSITIVE = []
  include Aws::Structure
end

#text_transformations ⇒ Array<Types::TextTransformation>

Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass detection. Text transformations are used in rule match statements, to transform the FieldToMatch request component before inspecting it, and they're used in rate-based rule statements, to transform request components before using them as custom aggregation keys. If you specify one or more transformations to apply, WAF performs all transformations on the specified content, starting from the lowest priority setting, and then uses the transformed component contents.

Returns:

• (Array<Types::TextTransformation>)

# File 'gems/aws-sdk-wafv2/lib/aws-sdk-wafv2/types.rb', line 9974

class SizeConstraintStatement < Struct.new(
  :field_to_match,
  :comparison_operator,
  :size,
  :text_transformations,
  :pre_parse_text_transformations)
  SENSITIVE = []
  include Aws::Structure
end