public static interface CfnSizeConstraintSet.SizeConstraintProperty
For more information, see AWS WAF Classic in the developer guide.
For the latest version of AWS WAF , use the AWS WAF V2 API and see the AWS WAF Developer Guide . With the latest version, AWS WAF has a single set of endpoints for regional and global use.
Specifies a constraint on the size of a part of the web request. AWS WAF uses the Size
, ComparisonOperator
, and FieldToMatch
to build an expression in the form of " Size
ComparisonOperator
size in bytes of FieldToMatch
". If that expression is true, the SizeConstraint
is considered to match.
Example:
// The code below shows an example of how to instantiate this type. // The values are placeholders you should change. import software.amazon.awscdk.services.waf.regional.*; SizeConstraintProperty sizeConstraintProperty = SizeConstraintProperty.builder() .comparisonOperator("comparisonOperator") .fieldToMatch(FieldToMatchProperty.builder() .type("type") // the properties below are optional .data("data") .build()) .size(123) .textTransformation("textTransformation") .build();
Modifier and Type | Interface and Description |
---|---|
static class |
CfnSizeConstraintSet.SizeConstraintProperty.Builder
A builder for
CfnSizeConstraintSet.SizeConstraintProperty |
static class |
CfnSizeConstraintSet.SizeConstraintProperty.Jsii$Proxy
An implementation for
CfnSizeConstraintSet.SizeConstraintProperty |
Modifier and Type | Method and Description |
---|---|
static CfnSizeConstraintSet.SizeConstraintProperty.Builder |
builder() |
java.lang.String |
getComparisonOperator()
The type of comparison you want AWS WAF to perform.
|
java.lang.Object |
getFieldToMatch()
The part of a web request that you want AWS WAF to inspect, such as a specific header or a query string.
|
java.lang.Number |
getSize()
The size in bytes that you want AWS WAF to compare against the size of the specified `FieldToMatch` .
|
java.lang.String |
getTextTransformation()
Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass AWS WAF .
|
java.lang.String getComparisonOperator()
AWS WAF uses this in combination with the provided Size
and FieldToMatch
to build an expression in the form of " Size
ComparisonOperator
size in bytes of FieldToMatch
". If that expression is true, the SizeConstraint
is considered to match.
EQ : Used to test if the Size
is equal to the size of the FieldToMatch
NE : Used to test if the Size
is not equal to the size of the FieldToMatch
LE : Used to test if the Size
is less than or equal to the size of the FieldToMatch
LT : Used to test if the Size
is strictly less than the size of the FieldToMatch
GE : Used to test if the Size
is greater than or equal to the size of the FieldToMatch
GT : Used to test if the Size
is strictly greater than the size of the FieldToMatch
java.lang.Object getFieldToMatch()
java.lang.Number getSize()
AWS WAF uses this in combination with ComparisonOperator
and FieldToMatch
to build an expression in the form of " Size
ComparisonOperator
size in bytes of FieldToMatch
". If that expression is true, the SizeConstraint
is considered to match.
Valid values for size are 0 - 21474836480 bytes (0 - 20 GB).
If you specify URI
for the value of Type
, the / in the URI path that you specify counts as one character. For example, the URI /logo.jpg
is nine characters long.
java.lang.String getTextTransformation()
If you specify a transformation, AWS WAF performs the transformation on FieldToMatch
before inspecting a request for a match.
You can only specify a single type of TextTransformation.
Note that if you choose BODY
for the value of Type
, you must choose NONE
for TextTransformation
because the API Gateway API or Application Load Balancer forward only the first 8192 bytes for inspection.
NONE
Specify NONE
if you don't want to perform any text transformations.
CMD_LINE
When you're concerned that attackers are injecting an operating system command line command and using unusual formatting to disguise some or all of the command, use this option to perform the following transformations:
COMPRESS_WHITE_SPACE
Use this option to replace the following characters with a space character (decimal 32):
COMPRESS_WHITE_SPACE
also replaces multiple spaces with one space.
HTML_ENTITY_DECODE
Use this option to replace HTML-encoded characters with unencoded characters. HTML_ENTITY_DECODE
performs the following operations:
(ampersand)quot;
with "
(ampersand)nbsp;
with a non-breaking space, decimal 160(ampersand)lt;
with a "less than" symbol(ampersand)gt;
with >
(ampersand)#xhhhh;
, with the corresponding characters(ampersand)#nnnn;
, with the corresponding charactersLOWERCASE
Use this option to convert uppercase letters (A-Z) to lowercase (a-z).
URL_DECODE
Use this option to decode a URL-encoded value.
static CfnSizeConstraintSet.SizeConstraintProperty.Builder builder()