Update Size Constraint Set
wafregional_update_size_constraint_set | R Documentation |
This is AWS WAF Classic documentation¶
Description¶
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.
Inserts or deletes SizeConstraint objects (filters) in a
SizeConstraintSet. For each SizeConstraint
object, you specify the
following values:
-
Whether to insert or delete the object from the array. If you want to change a
SizeConstraintSetUpdate
object, you delete the existing object and add a new one. -
The part of a web request that you want AWS WAF to evaluate, such as the length of a query string or the length of the
User-Agent
header. -
Whether to perform any transformations on the request, such as converting it to lowercase, before checking its length. Note that transformations of the request body are not supported because the AWS resource forwards only the first
8192
bytes of your request to AWS WAF.You can only specify a single type of TextTransformation.
-
A
ComparisonOperator
used for evaluating the selected part of the request against the specifiedSize
, such as equals, greater than, less than, and so on. -
The length, in bytes, that you want AWS WAF to watch for in selected part of the request. The length is computed after applying the transformation.
For example, you can add a SizeConstraintSetUpdate
object that matches
web requests in which the length of the User-Agent
header is greater
than 100 bytes. You can then configure AWS WAF to block those requests.
To create and configure a SizeConstraintSet
, perform the following
steps:
-
Create a
SizeConstraintSet.
For more information, seecreate_size_constraint_set
. -
Use
get_change_token
to get the change token that you provide in theChangeToken
parameter of anupdate_size_constraint_set
request. -
Submit an
update_size_constraint_set
request to specify the part of the request that you want AWS WAF to inspect (for example, the header or the URI) and the value that you want AWS WAF to watch for.
For more information about how to use the AWS WAF API to allow or block HTTP requests, see the AWS WAF Developer Guide.
Usage¶
Arguments¶
SizeConstraintSetId
[required] The
SizeConstraintSetId
of the SizeConstraintSet that you want to update.SizeConstraintSetId
is returned bycreate_size_constraint_set
and bylist_size_constraint_sets
.ChangeToken
[required] The value returned by the most recent call to
get_change_token
.Updates
[required] An array of
SizeConstraintSetUpdate
objects that you want to insert into or delete from a SizeConstraintSet. For more information, see the applicable data types:SizeConstraintSetUpdate: Contains
Action
andSizeConstraint
SizeConstraint: Contains
FieldToMatch
,TextTransformation
,ComparisonOperator
, andSize
FieldToMatch: Contains
Data
andType
Value¶
A list with the following syntax:
Request syntax¶
svc$update_size_constraint_set(
SizeConstraintSetId = "string",
ChangeToken = "string",
Updates = list(
list(
Action = "INSERT"|"DELETE",
SizeConstraint = list(
FieldToMatch = list(
Type = "URI"|"QUERY_STRING"|"HEADER"|"METHOD"|"BODY"|"SINGLE_QUERY_ARG"|"ALL_QUERY_ARGS",
Data = "string"
),
TextTransformation = "NONE"|"COMPRESS_WHITE_SPACE"|"HTML_ENTITY_DECODE"|"LOWERCASE"|"CMD_LINE"|"URL_DECODE",
ComparisonOperator = "EQ"|"NE"|"LE"|"LT"|"GE"|"GT",
Size = 123
)
)
)
)
Examples¶
## Not run:
# The following example deletes a SizeConstraint object (filters) in a
# size constraint set with the ID
# example1ds3t-46da-4fdb-b8d5-abc321j569j5.
svc$update_size_constraint_set(
ChangeToken = "abcd12f2-46da-4fdb-b8d5-fbd4c466928f",
SizeConstraintSetId = "example1ds3t-46da-4fdb-b8d5-abc321j569j5",
Updates = list(
list(
Action = "DELETE",
SizeConstraint = list(
ComparisonOperator = "GT",
FieldToMatch = list(
Type = "QUERY_STRING"
),
Size = 0L,
TextTransformation = "NONE"
)
)
)
)
## End(Not run)