Package software.amazon.awscdk.services.wafv2

Interface CfnWebACL.ByteMatchStatementProperty

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnWebACL.ByteMatchStatementProperty.Jsii$Proxy

Enclosing class:

CfnWebACL

@Stability(Stable)
public static interface CfnWebACL.ByteMatchStatementProperty
extends software.amazon.jsii.JsiiSerializable

A rule statement that defines a string match search for AWS WAF to apply to web requests.

The byte match statement provides the bytes to search for, the location in requests that you want AWS WAF to search, and other settings. The bytes to search for are typically a string that corresponds with ASCII characters. In the AWS WAF console and the developer guide, this is called a string match statement.

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.wafv2.*;
 Object all;
 Object allQueryArguments;
 Object method;
 Object queryString;
 Object singleHeader;
 Object singleQueryArgument;
 Object uriPath;
 ByteMatchStatementProperty byteMatchStatementProperty = ByteMatchStatementProperty.builder()
         .fieldToMatch(FieldToMatchProperty.builder()
                 .allQueryArguments(allQueryArguments)
                 .body(BodyProperty.builder()
                         .oversizeHandling("oversizeHandling")
                         .build())
                 .cookies(CookiesProperty.builder()
                         .matchPattern(CookieMatchPatternProperty.builder()
                                 .all(all)
                                 .excludedCookies(List.of("excludedCookies"))
                                 .includedCookies(List.of("includedCookies"))
                                 .build())
                         .matchScope("matchScope")
                         .oversizeHandling("oversizeHandling")
                         .build())
                 .headers(HeadersProperty.builder()
                         .matchPattern(HeaderMatchPatternProperty.builder()
                                 .all(all)
                                 .excludedHeaders(List.of("excludedHeaders"))
                                 .includedHeaders(List.of("includedHeaders"))
                                 .build())
                         .matchScope("matchScope")
                         .oversizeHandling("oversizeHandling")
                         .build())
                 .ja3Fingerprint(JA3FingerprintProperty.builder()
                         .fallbackBehavior("fallbackBehavior")
                         .build())
                 .jsonBody(JsonBodyProperty.builder()
                         .matchPattern(JsonMatchPatternProperty.builder()
                                 .all(all)
                                 .includedPaths(List.of("includedPaths"))
                                 .build())
                         .matchScope("matchScope")
                         // the properties below are optional
                         .invalidFallbackBehavior("invalidFallbackBehavior")
                         .oversizeHandling("oversizeHandling")
                         .build())
                 .method(method)
                 .queryString(queryString)
                 .singleHeader(singleHeader)
                 .singleQueryArgument(singleQueryArgument)
                 .uriPath(uriPath)
                 .build())
         .positionalConstraint("positionalConstraint")
         .textTransformations(List.of(TextTransformationProperty.builder()
                 .priority(123)
                 .type("type")
                 .build()))
         // the properties below are optional
         .searchString("searchString")
         .searchStringBase64("searchStringBase64")
         .build();
 

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-wafv2-webacl-bytematchstatement.html

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final class	CfnWebACL.ByteMatchStatementProperty.Builder	A builder for CfnWebACL.ByteMatchStatementProperty
static final class	CfnWebACL.ByteMatchStatementProperty.Jsii$Proxy	An implementation for CfnWebACL.ByteMatchStatementProperty

Method Summary

Modifier and Type	Method	Description
static CfnWebACL.ByteMatchStatementProperty.Builder	builder()
Object	getFieldToMatch()	The part of the web request that you want AWS WAF to inspect.
String	getPositionalConstraint()	The area within the portion of the web request that you want AWS WAF to search for SearchString .
default String	getSearchString()	A string value that you want AWS WAF to search for.
default String	getSearchStringBase64()	String to search for in a web request component, base64-encoded.
Object	getTextTransformations()	Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass detection.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Details

getFieldToMatch

@Stability(Stable)
@NotNull
Object getFieldToMatch()

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

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-wafv2-webacl-bytematchstatement.html#cfn-wafv2-webacl-bytematchstatement-fieldtomatch

getPositionalConstraint

@Stability(Stable)
@NotNull
String getPositionalConstraint()

The area within the portion of the web request that you want AWS WAF to search for SearchString .

Valid values include the following:

CONTAINS

The specified part of the web request must include the value of SearchString , but the location doesn't matter.

CONTAINS_WORD

The specified part of the web request must include the value of SearchString , and SearchString must contain only alphanumeric characters or underscore (A-Z, a-z, 0-9, or _). In addition, SearchString must be a word, which means that both of the following are true:

• SearchString is at the beginning of the specified part of the web request or is preceded by a character other than an alphanumeric character or underscore (_). Examples include the value of a header and ;BadBot .
• SearchString is at the end of the specified part of the web request or is followed by a character other than an alphanumeric character or underscore (_), for example, BadBot; and -BadBot; .

EXACTLY

The value of the specified part of the web request must exactly match the value of SearchString .

STARTS_WITH

The value of SearchString must appear at the beginning of the specified part of the web request.

ENDS_WITH

The value of SearchString must appear at the end of the specified part of the web request.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-wafv2-webacl-bytematchstatement.html#cfn-wafv2-webacl-bytematchstatement-positionalconstraint

getTextTransformations

@Stability(Stable)
@NotNull
Object getTextTransformations()

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

If you specify one or more transformations in a rule statement, AWS WAF performs all transformations on the content of the request component identified by FieldToMatch , starting from the lowest priority setting, before inspecting the content for a match.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-wafv2-webacl-bytematchstatement.html#cfn-wafv2-webacl-bytematchstatement-texttransformations

getSearchString

@Stability(Stable)
@Nullable
default String getSearchString()

A string value that you want AWS WAF to search for.

AWS WAF searches only in the part of web requests that you designate for inspection in FieldToMatch . The maximum length of the value is 200 bytes. For alphabetic characters A-Z and a-z, the value is case sensitive.

Don't encode this string. Provide the value that you want AWS WAF to search for. AWS CloudFormation automatically base64 encodes the value for you.

For example, suppose the value of Type is HEADER and the value of Data is User-Agent . If you want to search the User-Agent header for the value BadBot , you provide the string BadBot in the value of SearchString .

You must specify either SearchString or SearchStringBase64 in a ByteMatchStatement .

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-wafv2-webacl-bytematchstatement.html#cfn-wafv2-webacl-bytematchstatement-searchstring

getSearchStringBase64

@Stability(Stable)
@Nullable
default String getSearchStringBase64()

String to search for in a web request component, base64-encoded.

If you don't want to encode the string, specify the unencoded value in SearchString instead.

You must specify either SearchString or SearchStringBase64 in a ByteMatchStatement .

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-wafv2-webacl-bytematchstatement.html#cfn-wafv2-webacl-bytematchstatement-searchstringbase64

builder

@Stability(Stable)
static CfnWebACL.ByteMatchStatementProperty.Builder builder()

Returns:

a CfnWebACL.ByteMatchStatementProperty.Builder of CfnWebACL.ByteMatchStatementProperty