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main.tf
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resource "aws_wafv2_web_acl" "this" {
depends_on = [
aws_wafv2_ip_set.ipset,
]
name = format("%s-waf", local.name)
description = "WAFv2 ACL for ${format("%s-waf", local.name)}"
scope = var.scope
default_action {
dynamic "allow" {
for_each = var.default_action == "allow" ? [1] : []
content {}
}
dynamic "block" {
for_each = var.default_action == "block" ? [1] : []
content {}
}
}
visibility_config {
cloudwatch_metrics_enabled = var.is_enable_cloudwatch_metrics
sampled_requests_enabled = var.is_enable_sampled_requests
metric_name = "All"
}
dynamic "custom_response_body" {
for_each = var.custom_response_body
content {
key = custom_response_body.value.key
content = custom_response_body.value.content
content_type = custom_response_body.value.content_type
}
}
dynamic "rule" {
for_each = local.managed_rules
content {
name = rule.value.name
priority = rule.value.priority
override_action {
dynamic "none" {
for_each = rule.value.override_action == "none" ? [1] : []
content {}
}
dynamic "count" {
for_each = rule.value.override_action == "count" ? [1] : []
content {}
}
}
statement {
managed_rule_group_statement {
name = rule.value.name
vendor_name = "AWS"
dynamic "excluded_rule" {
for_each = rule.value.excluded_rules
content {
name = excluded_rule.value
}
}
}
}
visibility_config {
cloudwatch_metrics_enabled = var.is_enable_cloudwatch_metrics
metric_name = rule.value.name
sampled_requests_enabled = var.is_enable_sampled_requests
}
}
}
# New rule
dynamic "rule" {
for_each = var.custom_rules
content {
name = rule.value.name
priority = rule.value.priority
action {
dynamic "allow" {
for_each = rule.value.action == "allow" ? [1] : []
content {}
}
dynamic "count" {
for_each = rule.value.action == "count" ? [1] : []
content {}
}
dynamic "block" {
for_each = rule.value.action == "block" ? [1] : []
content {
dynamic "custom_response" {
for_each = lookup(rule.value, "custom_response", false) == false ? [] : [lookup(rule.value, "custom_response", {})]
content {
custom_response_body_key = lookup(custom_response.value, "custom_response_body_key", null)
response_code = lookup(custom_response.value, "response_code", null)
dynamic "response_header" {
for_each = lookup(custom_response.value, "response_headers", [])
content {
name = lookup(response_header.value, "name")
value = lookup(response_header.value, "value")
}
}
}
}
}
}
}
statement {
dynamic "and_statement" {
for_each = rule.value.expression_type == "and-statements" ? [1] : []
content {
dynamic "statement" {
for_each = rule.value.statements
iterator = user_defined_statement
content {
# replace `rule.value.statements[0]` with `user_defined_statement.value`
# Add `&& lookup(user_defined_statement.value, "is_negated_statement", false) == false` to condition for non not_statement
/* -------------------------------------------------------------------------- */
/* (START): SINGLE MATCH STATEMEN (1) [is_negated_statement = false] */
/* -------------------------------------------------------------------------- */
## Originates from IP address
dynamic "ip_set_reference_statement" {
for_each = user_defined_statement.value.inspect == local.originate_from_an_ip_addresses_in && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
arn = aws_wafv2_ip_set.this[user_defined_statement.value.ip_set_key].arn
}
}
## Originates from country
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#country_codes
dynamic "geo_match_statement" {
for_each = user_defined_statement.value.inspect == local.originate_from_a_country_in && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
country_codes = user_defined_statement.value.country_codes
}
}
## Labels
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#label_match_statement
dynamic "label_match_statement" {
for_each = user_defined_statement.value.inspect == local.has_a_label && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
scope = user_defined_statement.value.scope
key = user_defined_statement.value.key
}
}
# Request component (byte_match_statement, size_constraint_statement, sqli_match_statement)
## byte_match_statement (String Macth Condition)
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#byte_match_statement
dynamic "byte_match_statement" {
for_each = contains(local.request_component_dynamic_blocks, user_defined_statement.value.inspect) && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
positional_constraint = user_defined_statement.value.positional_constraint
search_string = user_defined_statement.value.search_string
field_to_match {
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_header
dynamic "single_header" {
for_each = user_defined_statement.value.inspect == local.single_header && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
name = user_defined_statement.value.header_name
}
}
# TODO: support all headers with oversizing handler
# dynamic "headers" {
# for_each = user_defined_statement.value.inspect == local.all_headers && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
# content {
# }
# }
# TODO: support cookies with oversizing handler
# dynamic "cookies" {
# for_each = user_defined_statement.value.inspect == local.cookies && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
# content {
# }
# }
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_query_argument
dynamic "single_query_argument" {
for_each = user_defined_statement.value.inspect == local.single_query_parameter && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
name = user_defined_statement.value.query_string_name
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#all_query_arguments
dynamic "all_query_arguments" {
for_each = user_defined_statement.value.inspect == local.all_query_parameters && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#uri_path
dynamic "uri_path" {
for_each = user_defined_statement.value.inspect == local.uri_path && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#query_string
dynamic "query_string" {
for_each = user_defined_statement.value.inspect == local.query_string && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
}
}
# TODO: support body, json with oversizing handler
# dynamic "body" {
# for_each = user_defined_statement.value.inspect == local.body && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
# content {
# }
# }
# TODO: support json_body with oversizing handler
## Can use input the same as body
# dynamic "json_body" {
# for_each = user_defined_statement.value.inspect == local.json_body && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
# content {
# }
# }
dynamic "method" {
for_each = user_defined_statement.value.inspect == local.http_method && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
}
}
# Not support for terraform at 2023-06-19
# dynamic "header_order" {
# }
}
#### TODO: support text transformation
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### support size_constraint_statement (Size Match Condition)
dynamic "size_constraint_statement" {
for_each = user_defined_statement.value.inspect == local.size_constraint && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
comparison_operator = user_defined_statement.value.comparison_operator
size = user_defined_statement.value.size
dynamic "field_to_match" {
# other fields to be added
for_each = lookup(user_defined_statement.value, "field_to_match", null) == null ? [] : [lookup(user_defined_statement.value, "field_to_match")]
content {
dynamic "body" {
for_each = lookup(field_to_match.value, "body", null) == null ? [] : [lookup(field_to_match.value, "body")]
content {
#oversize_handling = lookup(json_body.value, "oversize_handling", null) #not support as of now
}
}
}
}
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### support sqli_match_statement (Attack Match Condition)
/* -------------------------------------------------------------------------- */
/* (END): SINGLE MATCH STATEMEN (1) [is_negated_statement = false] */
/* -------------------------------------------------------------------------- */
# is_negated_statement = true
dynamic "not_statement" {
for_each = lookup(user_defined_statement.value, "is_negated_statement", false) == true ? [1] : [] # Force false
content {
statement {
# replace `rule.value.statements[0]` with `user_defined_statement.value`
/* -------------------------------------------------------------------------- */
/* (START): SINGLE MATCH STATEMEN [is_negated_statement = true] */
/* -------------------------------------------------------------------------- */
## Originates from IP address
dynamic "ip_set_reference_statement" {
for_each = user_defined_statement.value.inspect == local.originate_from_an_ip_addresses_in ? [1] : []
content {
arn = aws_wafv2_ip_set.this[user_defined_statement.value.ip_set_key].arn
}
}
## Originates from country
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#country_codes
dynamic "geo_match_statement" {
for_each = user_defined_statement.value.inspect == local.originate_from_a_country_in ? [1] : []
content {
country_codes = user_defined_statement.value.country_codes
}
}
## Labels
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#label_match_statement
dynamic "label_match_statement" {
for_each = user_defined_statement.value.inspect == local.has_a_label ? [1] : []
content {
scope = user_defined_statement.value.scope
key = user_defined_statement.value.key
}
}
# Request component (byte_match_statement, size_constraint_statement, sqli_match_statement)
## byte_match_statement (String Macth Condition)
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#byte_match_statement
dynamic "byte_match_statement" {
for_each = contains(local.request_component_dynamic_blocks, user_defined_statement.value.inspect) ? [1] : []
content {
positional_constraint = user_defined_statement.value.positional_constraint
search_string = user_defined_statement.value.search_string
field_to_match {
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_header
dynamic "single_header" {
for_each = user_defined_statement.value.inspect == local.single_header ? [1] : []
content {
name = user_defined_statement.value.header_name
}
}
# TODO: support all headers with oversizing handler
# dynamic "headers" {
# for_each = user_defined_statement.value.inspect == local.all_headers ? [1] : []
# content {
# }
# }
# TODO: support cookies with oversizing handler
# dynamic "cookies" {
# for_each = user_defined_statement.value.inspect == local.cookies ? [1] : []
# content {
# }
# }
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_query_argument
dynamic "single_query_argument" {
for_each = user_defined_statement.value.inspect == local.single_query_parameter ? [1] : []
content {
name = user_defined_statement.value.query_string_name
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#all_query_arguments
dynamic "all_query_arguments" {
for_each = user_defined_statement.value.inspect == local.all_query_parameters ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#uri_path
dynamic "uri_path" {
for_each = user_defined_statement.value.inspect == local.uri_path ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#query_string
dynamic "query_string" {
for_each = user_defined_statement.value.inspect == local.query_string ? [1] : []
content {
}
}
# TODO: support body, json with oversizing handler
# dynamic "body" {
# for_each = user_defined_statement.value.inspect == local.body ? [1] : []
# content {
# }
# }
# TODO: support json_body with oversizing handler
## Can use input the same as body
# dynamic "json_body" {
# for_each = user_defined_statement.value.inspect == local.json_body ? [1] : []
# content {
# }
# }
dynamic "method" {
for_each = user_defined_statement.value.inspect == local.http_method ? [1] : []
content {
}
}
# Not support for terraform at 2023-06-19
# dynamic "header_order" {
# }
}
#### TODO: support text transformation
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### TODO:
#### support size_constraint_statement (Size Match Condition)
dynamic "size_constraint_statement" {
for_each = user_defined_statement.value.inspect == local.size_constraint ? [1] : []
content {
comparison_operator = user_defined_statement.value.comparison_operator
size = user_defined_statement.value.size
dynamic "field_to_match" {
# other fields to be added
for_each = lookup(user_defined_statement.value, "field_to_match", null) == null ? [] : [lookup(user_defined_statement.value, "field_to_match")]
content {
dynamic "body" {
for_each = lookup(field_to_match.value, "body", null) == null ? [] : [lookup(field_to_match.value, "body")]
content {
#oversize_handling = lookup(json_body.value, "oversize_handling", null) #not support as of now
}
}
}
}
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### support sqli_match_statement (Attack Match Condition)
/* -------------------------------------------------------------------------- */
/* (END): SINGLE MATCH STATEMEN [is_negated_statement = true] */
/* -------------------------------------------------------------------------- */
}
}
}
}
}
}
}
# TODO: support or_statement; can use following dynamic block with some adjustment
dynamic "or_statement" {
for_each = rule.value.expression_type == "or-statements" ? [1] : []
content {
dynamic "statement" {
for_each = rule.value.statements
iterator = user_defined_statement
content {
# replace `rule.value.statements[0]` with `user_defined_statement.value`
# Add `&& lookup(user_defined_statement.value, "is_negated_statement", false) == false` to condition for non not_statement
/* -------------------------------------------------------------------------- */
/* (START): SINGLE MATCH STATEMEN (2) [is_negated_statement = false] */
/* -------------------------------------------------------------------------- */
## Originates from IP address
dynamic "ip_set_reference_statement" {
for_each = user_defined_statement.value.inspect == local.originate_from_an_ip_addresses_in && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
arn = aws_wafv2_ip_set.this[user_defined_statement.value.ip_set_key].arn
}
}
## Originates from country
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#country_codes
dynamic "geo_match_statement" {
for_each = user_defined_statement.value.inspect == local.originate_from_a_country_in && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
country_codes = user_defined_statement.value.country_codes
}
}
## Labels
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#label_match_statement
dynamic "label_match_statement" {
for_each = user_defined_statement.value.inspect == local.has_a_label && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
scope = user_defined_statement.value.scope
key = user_defined_statement.value.key
}
}
# Request component (byte_match_statement, size_constraint_statement, sqli_match_statement)
## byte_match_statement (String Macth Condition)
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#byte_match_statement
dynamic "byte_match_statement" {
for_each = contains(local.request_component_dynamic_blocks, user_defined_statement.value.inspect) && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
positional_constraint = user_defined_statement.value.positional_constraint
search_string = user_defined_statement.value.search_string
field_to_match {
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_header
dynamic "single_header" {
for_each = user_defined_statement.value.inspect == local.single_header && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
name = user_defined_statement.value.header_name
}
}
# TODO: support all headers with oversizing handler
# dynamic "headers" {
# for_each = user_defined_statement.value.inspect == local.all_headers && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
# content {
# }
# }
# TODO: support cookies with oversizing handler
# dynamic "cookies" {
# for_each = user_defined_statement.value.inspect == local.cookies && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
# content {
# }
# }
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_query_argument
dynamic "single_query_argument" {
for_each = user_defined_statement.value.inspect == local.single_query_parameter && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
name = user_defined_statement.value.query_string_name
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#all_query_arguments
dynamic "all_query_arguments" {
for_each = user_defined_statement.value.inspect == local.all_query_parameters && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#uri_path
dynamic "uri_path" {
for_each = user_defined_statement.value.inspect == local.uri_path && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#query_string
dynamic "query_string" {
for_each = user_defined_statement.value.inspect == local.query_string && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
}
}
# TODO: support body, json with oversizing handler
# dynamic "body" {
# for_each = user_defined_statement.value.inspect == local.body && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
# content {
# }
# }
# TODO: support json_body with oversizing handler
## Can use input the same as body
# dynamic "json_body" {
# for_each = user_defined_statement.value.inspect == local.json_body && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
# content {
# }
# }
dynamic "method" {
for_each = user_defined_statement.value.inspect == local.http_method && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
}
}
# Not support for terraform at 2023-06-19
# dynamic "header_order" {
# }
}
#### TODO: support text transformation
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### support size_constraint_statement (Size Match Condition)
dynamic "size_constraint_statement" {
for_each = user_defined_statement.value.inspect == local.size_constraint && lookup(user_defined_statement.value, "is_negated_statement", false) == false ? [1] : []
content {
comparison_operator = user_defined_statement.value.comparison_operator
size = user_defined_statement.value.size
dynamic "field_to_match" {
# other fields to be added
for_each = lookup(user_defined_statement.value, "field_to_match", null) == null ? [] : [lookup(user_defined_statement.value, "field_to_match")]
content {
dynamic "body" {
for_each = lookup(field_to_match.value, "body", null) == null ? [] : [lookup(field_to_match.value, "body")]
content {
#oversize_handling = lookup(json_body.value, "oversize_handling", null) #not support as of now
}
}
}
}
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### support sqli_match_statement (Attack Match Condition)
/* -------------------------------------------------------------------------- */
/* (END): SINGLE MATCH STATEMEN (2) [is_negated_statement = false] */
/* -------------------------------------------------------------------------- */
# is_negated_statement = true
dynamic "not_statement" {
for_each = lookup(user_defined_statement.value, "is_negated_statement", false) == true ? [1] : [] # Force false
content {
statement {
# replace `rule.value.statements[0]` with `user_defined_statement.value`
/* -------------------------------------------------------------------------- */
/* (START): SINGLE MATCH STATEMEN (2) [is_negated_statement = true] */
/* -------------------------------------------------------------------------- */
## Originates from IP address
dynamic "ip_set_reference_statement" {
for_each = user_defined_statement.value.inspect == local.originate_from_an_ip_addresses_in ? [1] : []
content {
arn = aws_wafv2_ip_set.this[user_defined_statement.value.ip_set_key].arn
}
}
## Originates from country
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#country_codes
dynamic "geo_match_statement" {
for_each = user_defined_statement.value.inspect == local.originate_from_a_country_in ? [1] : []
content {
country_codes = user_defined_statement.value.country_codes
}
}
## Labels
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#label_match_statement
dynamic "label_match_statement" {
for_each = user_defined_statement.value.inspect == local.has_a_label ? [1] : []
content {
scope = user_defined_statement.value.scope
key = user_defined_statement.value.key
}
}
# Request component (byte_match_statement, size_constraint_statement, sqli_match_statement)
## byte_match_statement (String Macth Condition)
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#byte_match_statement
dynamic "byte_match_statement" {
for_each = contains(local.request_component_dynamic_blocks, user_defined_statement.value.inspect) ? [1] : []
content {
positional_constraint = user_defined_statement.value.positional_constraint
search_string = user_defined_statement.value.search_string
field_to_match {
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_header
dynamic "single_header" {
for_each = user_defined_statement.value.inspect == local.single_header ? [1] : []
content {
name = user_defined_statement.value.header_name
}
}
# TODO: support all headers with oversizing handler
# dynamic "headers" {
# for_each = user_defined_statement.value.inspect == local.all_headers ? [1] : []
# content {
# }
# }
# TODO: support cookies with oversizing handler
# dynamic "cookies" {
# for_each = user_defined_statement.value.inspect == local.cookies ? [1] : []
# content {
# }
# }
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_query_argument
dynamic "single_query_argument" {
for_each = user_defined_statement.value.inspect == local.single_query_parameter ? [1] : []
content {
name = user_defined_statement.value.query_string_name
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#all_query_arguments
dynamic "all_query_arguments" {
for_each = user_defined_statement.value.inspect == local.all_query_parameters ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#uri_path
dynamic "uri_path" {
for_each = user_defined_statement.value.inspect == local.uri_path ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#query_string
dynamic "query_string" {
for_each = user_defined_statement.value.inspect == local.query_string ? [1] : []
content {
}
}
# TODO: support body, json with oversizing handler
# dynamic "body" {
# for_each = user_defined_statement.value.inspect == local.body ? [1] : []
# content {
# }
# }
# TODO: support json_body with oversizing handler
## Can use input the same as body
# dynamic "json_body" {
# for_each = user_defined_statement.value.inspect == local.json_body ? [1] : []
# content {
# }
# }
dynamic "method" {
for_each = user_defined_statement.value.inspect == local.http_method ? [1] : []
content {
}
}
# Not support for terraform at 2023-06-19
# dynamic "header_order" {
# }
}
#### TODO: support text transformation
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### support size_constraint_statement (Size Match Condition)
dynamic "size_constraint_statement" {
for_each = user_defined_statement.value.inspect == local.size_constraint ? [1] : []
content {
comparison_operator = user_defined_statement.value.comparison_operator
size = user_defined_statement.value.size
dynamic "field_to_match" {
# other fields to be added
for_each = lookup(user_defined_statement.value, "field_to_match", null) == null ? [] : [lookup(user_defined_statement.value, "field_to_match")]
content {
dynamic "body" {
for_each = lookup(field_to_match.value, "body", null) == null ? [] : [lookup(field_to_match.value, "body")]
content {
#oversize_handling = lookup(json_body.value, "oversize_handling", null) #not support as of now
}
}
}
}
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### support sqli_match_statement (Attack Match Condition)
/* -------------------------------------------------------------------------- */
/* (END): SINGLE MATCH STATEMEN (2) [is_negated_statement = true] */
/* -------------------------------------------------------------------------- */
}
}
}
}
}
}
}
# TODO: support not_statement later; can use following dynamic block with some adjustment
dynamic "not_statement" {
for_each = rule.value.expression_type == "not-statement" ? [1] : []
content {
}
}
/* -------------------------------------------------------------------------- */
/* (START): SINGLE MATCH STATEMEN */
/* -------------------------------------------------------------------------- */
## Originates from IP address
dynamic "ip_set_reference_statement" {
for_each = rule.value.expression_type == "match-statement" && rule.value.statements[0].inspect == local.originate_from_an_ip_addresses_in ? [1] : []
content {
arn = aws_wafv2_ip_set.this[rule.value.statements[0].ip_set_key].arn
}
}
## Originates from country
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#country_codes
dynamic "geo_match_statement" {
for_each = rule.value.expression_type == "match-statement" && rule.value.statements[0].inspect == local.originate_from_a_country_in ? [1] : []
content {
country_codes = rule.value.statements[0].country_codes
}
}
## Labels
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#label_match_statement
dynamic "label_match_statement" {
for_each = rule.value.expression_type == "match-statement" && rule.value.statements[0].inspect == local.has_a_label ? [1] : []
content {
scope = rule.value.statements[0].scope
key = rule.value.statements[0].key
}
}
# Request component (byte_match_statement, size_constraint_statement, sqli_match_statement)
## byte_match_statement (String Macth Condition)
#### https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#byte_match_statement
dynamic "byte_match_statement" {
for_each = rule.value.expression_type == "match-statement" && contains(local.request_component_dynamic_blocks, rule.value.statements[0].inspect) ? [1] : []
content {
positional_constraint = rule.value.statements[0].positional_constraint
search_string = rule.value.statements[0].search_string
field_to_match {
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_header
dynamic "single_header" {
for_each = rule.value.statements[0].inspect == local.single_header ? [1] : []
content {
name = rule.value.statements[0].header_name
}
}
# TODO: support all headers with oversizing handler
# dynamic "headers" {
# for_each = rule.value.statements[0].inspect == local.all_headers ? [1] : []
# content {
# }
# }
# TODO: support cookies with oversizing handler
# dynamic "cookies" {
# for_each = rule.value.statements[0].inspect == local.cookies ? [1] : []
# content {
# }
# }
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#single_query_argument
dynamic "single_query_argument" {
for_each = rule.value.statements[0].inspect == local.single_query_parameter ? [1] : []
content {
name = rule.value.statements[0].query_string_name
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#all_query_arguments
dynamic "all_query_arguments" {
for_each = rule.value.statements[0].inspect == local.all_query_parameters ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#uri_path
dynamic "uri_path" {
for_each = rule.value.statements[0].inspect == local.uri_path ? [1] : []
content {
}
}
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/wafv2_web_acl.html#query_string
dynamic "query_string" {
for_each = rule.value.statements[0].inspect == local.query_string ? [1] : []
content {
}
}
# TODO: support body, json with oversizing handler
# dynamic "body" {
# for_each = rule.value.statements[0].inspect == local.body ? [1] : []
# content {
# }
# }
# TODO: support json_body with oversizing handler
## Can use input the same as body
# dynamic "json_body" {
# for_each = rule.value.statements[0].inspect == local.json_body ? [1] : []
# content {
# }
# }
dynamic "method" {
for_each = rule.value.statements[0].inspect == local.http_method ? [1] : []
content {
}
}
# Not support for terraform at 2023-06-19
# dynamic "header_order" {
# }
}
#### TODO: support text transformation
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### support size_constraint_statement (Size Match Condition)
dynamic "geo_match_statement" {
for_each = rule.value.expression_type == "match-statement" && rule.value.statements[0].inspect == local.originate_from_a_country_in ? [1] : []
content {
country_codes = rule.value.statements[0].country_codes
}
}
dynamic "size_constraint_statement" {
for_each = rule.value.expression_type == "size-constraint-statement" && rule.value.statements[0].inspect == local.size_constraint ? [1] : []
content {
comparison_operator = rule.value.statements[0].comparison_operator
size = rule.value.statements[0].size
dynamic "field_to_match" {
# other fields to be added
for_each = lookup(rule.value.statements[0], "field_to_match", null) == null ? [] : [lookup(rule.value.statements[0], "field_to_match")]
content {
dynamic "body" {
for_each = lookup(field_to_match.value, "body", null) == null ? [] : [lookup(field_to_match.value, "body")]
content {
#oversize_handling = lookup(json_body.value, "oversize_handling", null) #not support as of now
}
}
}
}
text_transformation {
priority = 0
type = "NONE"
}
}
}
#### TODO:
#### support sqli_match_statement (Attack Match Condition)
/* -------------------------------------------------------------------------- */
/* (END): SINGLE MATCH STATEMEN */
/* -------------------------------------------------------------------------- */
}
visibility_config {
cloudwatch_metrics_enabled = var.is_enable_cloudwatch_metrics
metric_name = rule.value.name
sampled_requests_enabled = var.is_enable_sampled_requests
}
}
}
# ANCHOR: Can remoove infuture
dynamic "rule" {
for_each = var.ip_sets_rule
content {
name = rule.value.name
priority = rule.value.priority
action {
dynamic "allow" {