Class ByteMatchTuple

java.lang.Object
software.amazon.awssdk.services.waf.model.ByteMatchTuple
All Implemented Interfaces:
Serializable, SdkPojo, ToCopyableBuilder<ByteMatchTuple.Builder,ByteMatchTuple>
@Generated("software.amazon.awssdk:codegen") public final class ByteMatchTuple extends Object implements SdkPojo, Serializable, ToCopyableBuilder<ByteMatchTuple.Builder,ByteMatchTuple>

This is AWS WAF Classic documentation. For more information, see AWS WAF Classic in the developer guide.

For the latest version of AWS WAF, use the AWS WAFV2 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.

The bytes (typically a string that corresponds with ASCII characters) that you want AWS WAF to search for in web requests, the location in requests that you want AWS WAF to search, and other settings.

See Also:

  • Method Details

    • fieldToMatch

      public final FieldToMatch fieldToMatch()

      The part of a web request that you want AWS WAF to search, such as a specified header or a query string. For more information, see FieldToMatch.

      Returns:
      The part of a web request that you want AWS WAF to search, such as a specified header or a query string. For more information, see FieldToMatch.

    • targetString

      public final SdkBytes targetString()

      The value that you want AWS WAF to search for. AWS WAF searches for the specified string in the part of web requests that you specified in FieldToMatch. The maximum length of the value is 50 bytes.

      Valid values depend on the values that you specified for FieldToMatch:

      • HEADER: The value that you want AWS WAF to search for in the request header that you specified in FieldToMatch, for example, the value of the User-Agent or Referer header.

      • METHOD: The HTTP method, which indicates the type of operation specified in the request. CloudFront supports the following methods: DELETE, GET, HEAD, OPTIONS, PATCH, POST, and PUT.

      • QUERY_STRING: The value that you want AWS WAF to search for in the query string, which is the part of a URL that appears after a ? character.

      • URI: The value that you want AWS WAF to search for in the part of a URL that identifies a resource, for example, /images/daily-ad.jpg.

      • BODY: The part of a request that contains any additional data that you want to send to your web server as the HTTP request body, such as data from a form. The request body immediately follows the request headers. Note that only the first 8192 bytes of the request body are forwarded to AWS WAF for inspection. To allow or block requests based on the length of the body, you can create a size constraint set. For more information, see CreateSizeConstraintSet.

      • SINGLE_QUERY_ARG: The parameter in the query string that you will inspect, such as UserName or SalesRegion. The maximum length for SINGLE_QUERY_ARG is 30 characters.

      • ALL_QUERY_ARGS: Similar to SINGLE_QUERY_ARG, but instead of inspecting a single parameter, AWS WAF inspects all parameters within the query string for the value or regex pattern that you specify in TargetString.

      If TargetString includes alphabetic characters A-Z and a-z, note that the value is case sensitive.

      If you're using the AWS WAF API

      Specify a base64-encoded version of the value. The maximum length of the value before you base64-encode it is 50 bytes.

      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 base64-encode BadBot using MIME base64-encoding and include the resulting value, QmFkQm90, in the value of TargetString.

      If you're using the AWS CLI or one of the AWS SDKs

      The value that you want AWS WAF to search for. The SDK automatically base64 encodes the value.

      Returns:
      The value that you want AWS WAF to search for. AWS WAF searches for the specified string in the part of web requests that you specified in FieldToMatch. The maximum length of the value is 50 bytes.

      Valid values depend on the values that you specified for FieldToMatch:

      • HEADER: The value that you want AWS WAF to search for in the request header that you specified in FieldToMatch, for example, the value of the User-Agent or Referer header.

      • METHOD: The HTTP method, which indicates the type of operation specified in the request. CloudFront supports the following methods: DELETE, GET, HEAD, OPTIONS, PATCH, POST, and PUT.

      • QUERY_STRING: The value that you want AWS WAF to search for in the query string, which is the part of a URL that appears after a ? character.

      • URI: The value that you want AWS WAF to search for in the part of a URL that identifies a resource, for example, /images/daily-ad.jpg.

      • BODY: The part of a request that contains any additional data that you want to send to your web server as the HTTP request body, such as data from a form. The request body immediately follows the request headers. Note that only the first 8192 bytes of the request body are forwarded to AWS WAF for inspection. To allow or block requests based on the length of the body, you can create a size constraint set. For more information, see CreateSizeConstraintSet.

      • SINGLE_QUERY_ARG: The parameter in the query string that you will inspect, such as UserName or SalesRegion. The maximum length for SINGLE_QUERY_ARG is 30 characters.

      • ALL_QUERY_ARGS: Similar to SINGLE_QUERY_ARG, but instead of inspecting a single parameter, AWS WAF inspects all parameters within the query string for the value or regex pattern that you specify in TargetString.

      If TargetString includes alphabetic characters A-Z and a-z, note that the value is case sensitive.

      If you're using the AWS WAF API

      Specify a base64-encoded version of the value. The maximum length of the value before you base64-encode it is 50 bytes.

      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 base64-encode BadBot using MIME base64-encoding and include the resulting value, QmFkQm90, in the value of TargetString.

      If you're using the AWS CLI or one of the AWS SDKs

      The value that you want AWS WAF to search for. The SDK automatically base64 encodes the value.

    • textTransformation

      public final TextTransformation textTransformation()

      Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass AWS WAF. If you specify a transformation, AWS WAF performs the transformation on FieldToMatch before inspecting it for a match.

      You can only specify a single type of TextTransformation.

      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:

      • Delete the following characters: \ " ' ^

      • Delete spaces before the following characters: / (

      • Replace the following characters with a space: , ;

      • Replace multiple spaces with one space

      • Convert uppercase letters (A-Z) to lowercase (a-z)

      COMPRESS_WHITE_SPACE

      Use this option to replace the following characters with a space character (decimal 32):

      • \f, formfeed, decimal 12

      • \t, tab, decimal 9

      • \n, newline, decimal 10

      • \r, carriage return, decimal 13

      • \v, vertical tab, decimal 11

      • non-breaking space, decimal 160

      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:

      • Replaces (ampersand)quot; with "

      • Replaces (ampersand)nbsp; with a non-breaking space, decimal 160

      • Replaces (ampersand)lt; with a "less than" symbol

      • Replaces (ampersand)gt; with >

      • Replaces characters that are represented in hexadecimal format, (ampersand)#xhhhh;, with the corresponding characters

      • Replaces characters that are represented in decimal format, (ampersand)#nnnn;, with the corresponding characters

      LOWERCASE

      Use this option to convert uppercase letters (A-Z) to lowercase (a-z).

      URL_DECODE

      Use this option to decode a URL-encoded value.

      NONE

      Specify NONE if you don't want to perform any text transformations.

      If the service returns an enum value that is not available in the current SDK version, textTransformation will return TextTransformation.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from textTransformationAsString().

      Returns:
      Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass AWS WAF. If you specify a transformation, AWS WAF performs the transformation on FieldToMatch before inspecting it for a match.

      You can only specify a single type of TextTransformation.

      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:

      • Delete the following characters: \ " ' ^

      • Delete spaces before the following characters: / (

      • Replace the following characters with a space: , ;

      • Replace multiple spaces with one space

      • Convert uppercase letters (A-Z) to lowercase (a-z)

      COMPRESS_WHITE_SPACE

      Use this option to replace the following characters with a space character (decimal 32):

      • \f, formfeed, decimal 12

      • \t, tab, decimal 9

      • \n, newline, decimal 10

      • \r, carriage return, decimal 13

      • \v, vertical tab, decimal 11

      • non-breaking space, decimal 160

      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:

      • Replaces (ampersand)quot; with "

      • Replaces (ampersand)nbsp; with a non-breaking space, decimal 160

      • Replaces (ampersand)lt; with a "less than" symbol

      • Replaces (ampersand)gt; with >

      • Replaces characters that are represented in hexadecimal format, (ampersand)#xhhhh;, with the corresponding characters

      • Replaces characters that are represented in decimal format, (ampersand)#nnnn;, with the corresponding characters

      LOWERCASE

      Use this option to convert uppercase letters (A-Z) to lowercase (a-z).

      URL_DECODE

      Use this option to decode a URL-encoded value.

      NONE

      Specify NONE if you don't want to perform any text transformations.

      See Also:

    • textTransformationAsString

      public final String textTransformationAsString()

      Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass AWS WAF. If you specify a transformation, AWS WAF performs the transformation on FieldToMatch before inspecting it for a match.

      You can only specify a single type of TextTransformation.

      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:

      • Delete the following characters: \ " ' ^

      • Delete spaces before the following characters: / (

      • Replace the following characters with a space: , ;

      • Replace multiple spaces with one space

      • Convert uppercase letters (A-Z) to lowercase (a-z)

      COMPRESS_WHITE_SPACE

      Use this option to replace the following characters with a space character (decimal 32):

      • \f, formfeed, decimal 12

      • \t, tab, decimal 9

      • \n, newline, decimal 10

      • \r, carriage return, decimal 13

      • \v, vertical tab, decimal 11

      • non-breaking space, decimal 160

      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:

      • Replaces (ampersand)quot; with "

      • Replaces (ampersand)nbsp; with a non-breaking space, decimal 160

      • Replaces (ampersand)lt; with a "less than" symbol

      • Replaces (ampersand)gt; with >

      • Replaces characters that are represented in hexadecimal format, (ampersand)#xhhhh;, with the corresponding characters

      • Replaces characters that are represented in decimal format, (ampersand)#nnnn;, with the corresponding characters

      LOWERCASE

      Use this option to convert uppercase letters (A-Z) to lowercase (a-z).

      URL_DECODE

      Use this option to decode a URL-encoded value.

      NONE

      Specify NONE if you don't want to perform any text transformations.

      If the service returns an enum value that is not available in the current SDK version, textTransformation will return TextTransformation.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from textTransformationAsString().

      Returns:
      Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass AWS WAF. If you specify a transformation, AWS WAF performs the transformation on FieldToMatch before inspecting it for a match.

      You can only specify a single type of TextTransformation.

      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:

      • Delete the following characters: \ " ' ^

      • Delete spaces before the following characters: / (

      • Replace the following characters with a space: , ;

      • Replace multiple spaces with one space

      • Convert uppercase letters (A-Z) to lowercase (a-z)

      COMPRESS_WHITE_SPACE

      Use this option to replace the following characters with a space character (decimal 32):

      • \f, formfeed, decimal 12

      • \t, tab, decimal 9

      • \n, newline, decimal 10

      • \r, carriage return, decimal 13

      • \v, vertical tab, decimal 11

      • non-breaking space, decimal 160

      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:

      • Replaces (ampersand)quot; with "

      • Replaces (ampersand)nbsp; with a non-breaking space, decimal 160

      • Replaces (ampersand)lt; with a "less than" symbol

      • Replaces (ampersand)gt; with >

      • Replaces characters that are represented in hexadecimal format, (ampersand)#xhhhh;, with the corresponding characters

      • Replaces characters that are represented in decimal format, (ampersand)#nnnn;, with the corresponding characters

      LOWERCASE

      Use this option to convert uppercase letters (A-Z) to lowercase (a-z).

      URL_DECODE

      Use this option to decode a URL-encoded value.

      NONE

      Specify NONE if you don't want to perform any text transformations.

      See Also:

    • positionalConstraint

      public final PositionalConstraint positionalConstraint()

      Within the portion of a web request that you want to search (for example, in the query string, if any), specify where you want AWS WAF to search. Valid values include the following:

      CONTAINS

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

      CONTAINS_WORD

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

      • TargetString exactly matches the value of the specified part of the web request, such as the value of a header.

      • TargetString is at the beginning of the specified part of the web request and is followed by a character other than an alphanumeric character or underscore (_), for example, BadBot;.

      • TargetString is at the end of the specified part of the web request and is preceded by a character other than an alphanumeric character or underscore (_), for example, ;BadBot.

      • TargetString is in the middle of the specified part of the web request and is preceded and followed by characters other than alphanumeric characters or underscore (_), for example, -BadBot;.

      EXACTLY

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

      STARTS_WITH

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

      ENDS_WITH

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

      If the service returns an enum value that is not available in the current SDK version, positionalConstraint will return PositionalConstraint.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from positionalConstraintAsString().

      Returns:
      Within the portion of a web request that you want to search (for example, in the query string, if any), specify where you want AWS WAF to search. Valid values include the following:

      CONTAINS

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

      CONTAINS_WORD

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

      • TargetString exactly matches the value of the specified part of the web request, such as the value of a header.

      • TargetString is at the beginning of the specified part of the web request and is followed by a character other than an alphanumeric character or underscore (_), for example, BadBot;.

      • TargetString is at the end of the specified part of the web request and is preceded by a character other than an alphanumeric character or underscore (_), for example, ;BadBot.

      • TargetString is in the middle of the specified part of the web request and is preceded and followed by characters other than alphanumeric characters or underscore (_), for example, -BadBot;.

      EXACTLY

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

      STARTS_WITH

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

      ENDS_WITH

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

      See Also:

    • positionalConstraintAsString

      public final String positionalConstraintAsString()

      Within the portion of a web request that you want to search (for example, in the query string, if any), specify where you want AWS WAF to search. Valid values include the following:

      CONTAINS

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

      CONTAINS_WORD

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

      • TargetString exactly matches the value of the specified part of the web request, such as the value of a header.

      • TargetString is at the beginning of the specified part of the web request and is followed by a character other than an alphanumeric character or underscore (_), for example, BadBot;.

      • TargetString is at the end of the specified part of the web request and is preceded by a character other than an alphanumeric character or underscore (_), for example, ;BadBot.

      • TargetString is in the middle of the specified part of the web request and is preceded and followed by characters other than alphanumeric characters or underscore (_), for example, -BadBot;.

      EXACTLY

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

      STARTS_WITH

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

      ENDS_WITH

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

      If the service returns an enum value that is not available in the current SDK version, positionalConstraint will return PositionalConstraint.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from positionalConstraintAsString().

      Returns:
      Within the portion of a web request that you want to search (for example, in the query string, if any), specify where you want AWS WAF to search. Valid values include the following:

      CONTAINS

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

      CONTAINS_WORD

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

      • TargetString exactly matches the value of the specified part of the web request, such as the value of a header.

      • TargetString is at the beginning of the specified part of the web request and is followed by a character other than an alphanumeric character or underscore (_), for example, BadBot;.

      • TargetString is at the end of the specified part of the web request and is preceded by a character other than an alphanumeric character or underscore (_), for example, ;BadBot.

      • TargetString is in the middle of the specified part of the web request and is preceded and followed by characters other than alphanumeric characters or underscore (_), for example, -BadBot;.

      EXACTLY

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

      STARTS_WITH

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

      ENDS_WITH

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

      See Also:

    • toBuilder

      public ByteMatchTuple.Builder toBuilder()
      Description copied from interface: ToCopyableBuilder
      Take this object and create a builder that contains all of the current property values of this object.
      Specified by:
      toBuilder in interface ToCopyableBuilder<ByteMatchTuple.Builder,ByteMatchTuple>
      Returns:
      a builder for type T

    • builder

      public static ByteMatchTuple.Builder builder()

    • serializableBuilderClass

      public static Class<? extends ByteMatchTuple.Builder> serializableBuilderClass()

    • hashCode

      public final int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public final boolean equals(Object obj)
      Overrides:
      equals in class Object

    • equalsBySdkFields

      public final boolean equalsBySdkFields(Object obj)
      Description copied from interface: SdkPojo
      Indicates whether some other object is "equal to" this one by SDK fields. An SDK field is a modeled, non-inherited field in an SdkPojo class, and is generated based on a service model.

      If an SdkPojo class does not have any inherited fields, equalsBySdkFields and equals are essentially the same.

      Specified by:
      equalsBySdkFields in interface SdkPojo
      Parameters:
      obj - the object to be compared with
      Returns:
      true if the other object equals to this object by sdk fields, false otherwise.

    • toString

      public final String toString()
      Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.
      Overrides:
      toString in class Object

    • getValueForField

      public final <T> Optional<T> getValueForField(String fieldName, Class<T> clazz)

    • sdkFields

      public final List<SdkField<?>> sdkFields()
      Specified by:
      sdkFields in interface SdkPojo
      Returns:
      List of SdkField in this POJO. May be empty list but should never be null.