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feat(rules): add size constraint statement (#41)
* feat(rules): add size constraint statement Signed-off-by: Felipe Zipitria <[email protected]> * feat(terratest): add tests to sizeconstraint statement Signed-off-by: Felipe Zipitria <[email protected]> * fix(ci): update go modules to fix terratest in GHA Signed-off-by: Felipe Zipitria <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| provider "aws" { | ||
| region = "eu-west-1" | ||
| } | ||
|
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| ##### | ||
| # Web Application Firewall configuration | ||
| ##### | ||
| module "waf" { | ||
| source = "../.." | ||
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| name_prefix = var.name_prefix | ||
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| allow_default_action = true | ||
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| scope = "REGIONAL" | ||
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| create_alb_association = false | ||
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| visibility_config = { | ||
| cloudwatch_metrics_enabled = false | ||
| metric_name = "${var.name_prefix}-waf-setup-waf-main-metrics" | ||
| sampled_requests_enabled = false | ||
| } | ||
|
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| rules = [ | ||
| { | ||
| name = "AWSManagedRulesCommonRuleSet-rule-1" | ||
| priority = "1" | ||
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| override_action = "none" | ||
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| visibility_config = { | ||
| cloudwatch_metrics_enabled = false | ||
| metric_name = "AWSManagedRulesCommonRuleSet-metric" | ||
| sampled_requests_enabled = false | ||
| } | ||
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| managed_rule_group_statement = { | ||
| name = "AWSManagedRulesCommonRuleSet" | ||
| vendor_name = "AWS" | ||
| excluded_rule = [ | ||
| "SizeRestrictions_QUERYSTRING", | ||
| "SizeRestrictions_BODY", | ||
| "GenericRFI_QUERYARGUMENTS" | ||
| ] | ||
| } | ||
| }, | ||
| { | ||
| name = "block-specific-uri-path" | ||
| priority = "2" | ||
| action = "block" | ||
|
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| byte_match_statement = { | ||
| field_to_match = { | ||
| uri_path = "{}" | ||
| } | ||
| positional_constraint = "STARTS_WITH" | ||
| search_string = "/path/to/match" | ||
| priority = 0 | ||
| type = "NONE" # The text transformation type | ||
| } | ||
|
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| visibility_config = { | ||
| cloudwatch_metrics_enabled = false | ||
| sampled_requests_enabled = false | ||
| } | ||
| }, | ||
| { | ||
| name = "block-if-request-body-contains-hotmail-email" | ||
| priority = "3" | ||
| action = "block" | ||
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| byte_match_statement = { | ||
| field_to_match = { | ||
| body = "{}" | ||
| } | ||
| positional_constraint = "CONTAINS" | ||
| search_string = "@hotmail.com" | ||
| priority = 0 | ||
| type = "NONE" # The text transformation type | ||
| } | ||
|
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| visibility_config = { | ||
| cloudwatch_metrics_enabled = false | ||
| sampled_requests_enabled = false | ||
| } | ||
| }, | ||
| { | ||
| name = "block-all-post-requests" | ||
| priority = "4" | ||
| action = "block" | ||
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| byte_match_statement = { | ||
| field_to_match = { | ||
| method = "{}" | ||
| } | ||
| positional_constraint = "EXACTLY" | ||
| search_string = "post" | ||
| priority = 0 | ||
| type = "LOWERCASE" # The text transformation type | ||
| } | ||
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| visibility_config = { | ||
| cloudwatch_metrics_enabled = false | ||
| sampled_requests_enabled = false | ||
| } | ||
| }, | ||
| { | ||
| # Blocks a single user by checking the username header | ||
| name = "block-single-user" | ||
| priority = "5" | ||
| action = "block" | ||
|
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| byte_match_statement = { | ||
| field_to_match = { | ||
| single_header = { | ||
| name = "Username" | ||
| } | ||
| } | ||
| positional_constraint = "EXACTLY" | ||
| search_string = "testuser" | ||
| priority = 0 | ||
| type = "LOWERCASE" # The text transformation type | ||
| } | ||
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| visibility_config = { | ||
| cloudwatch_metrics_enabled = false | ||
| sampled_requests_enabled = false | ||
| } | ||
| }, | ||
| { | ||
| name = "BodySizeConstraint" | ||
| priority = 0 | ||
| size_constraint_statement = { | ||
| field_to_match = { | ||
| body = "{}" | ||
| } | ||
| comparison_operator = "GT" | ||
| size = 8192 | ||
| priority = 0 | ||
| type = "NONE" | ||
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| } | ||
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| action = "block" | ||
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| visibility_config = { | ||
| cloudwatch_metrics_enabled = true | ||
| metric_name = "BodySizeConstraint" | ||
| sampled_requests_enabled = true | ||
| } | ||
| }, | ||
| ] | ||
|
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||
| tags = { | ||
| "Environment" = "test" | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| output "web_acl_name" { | ||
| description = "The name of the WAFv2 WebACL." | ||
| value = module.waf.web_acl_name | ||
| } | ||
|
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| output "web_acl_arn" { | ||
| description = "The ARN of the WAFv2 WebACL." | ||
| value = module.waf.web_acl_arn | ||
| } | ||
|
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| output "web_acl_capacity" { | ||
| description = "The web ACL capacity units (WCUs) currently being used by this web ACL." | ||
| value = module.waf.web_acl_capacity | ||
| } | ||
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| output "web_acl_visibility_config_name" { | ||
| description = "The web ACL visibility config name" | ||
| value = module.waf.web_acl_visibility_config_name | ||
| } | ||
|
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| output "web_acl_rule_names" { | ||
| description = "List of created rule names" | ||
| value = module.waf.web_acl_rule_names | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| variable "name_prefix" { | ||
| description = "A prefix used for naming resources." | ||
| type = string | ||
| default = "example" | ||
| } |
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