epam · Astr1k · Sep 20, 2023 · Sep 19, 2023
diff --git a/policies/ecc-aws-560-unused_sns_topic.yml b/policies/ecc-aws-560-unused_sns_topic.yml
@@ -0,0 +1,26 @@
+# Copyright (c) 2023 EPAM Systems, Inc.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+policies:
+  - name: ecc-aws-560-unused_sns_topic
+    comment: '010002142000'
+    description: |
+      Amazon SNS topics unused
+    resource: aws.sns
+    filters:
+      - or:
+        - type: value
+          key: SubscriptionsConfirmed
+          value: "0"
+        - type: metrics
+          name: NumberOfMessagesPublished
+          statistics: Sum
+          missing-value: 0
+          days: 30
+          value: 0
+          op: eq
+          period: 2592000
diff --git a/terraform/ecc-aws-560-unused_sns_topic/green/provider.tf b/terraform/ecc-aws-560-unused_sns_topic/green/provider.tf
@@ -0,0 +1,20 @@
+terraform {
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "~> 4"
+    }
+  }
+}
+
+provider "aws" {
+  profile = var.profile
+  region  = var.default-region
+
+  default_tags {
+    tags = {
+      CustodianRule    = "ecc-aws-560-unused_sns_topic"
+      ComplianceStatus = "Green"
+    }
+  }
+}
diff --git a/terraform/ecc-aws-560-unused_sns_topic/green/sns.tf b/terraform/ecc-aws-560-unused_sns_topic/green/sns.tf
@@ -0,0 +1,28 @@
+resource "aws_sns_topic" "this" {
+  name = "560-sns-green"
+}
+
+resource "aws_sqs_queue" "this" {
+  name = "560-sqs-green"
+}
+
+resource "aws_sns_topic_subscription" "this" {
+  topic_arn = aws_sns_topic.this.arn
+  protocol  = "sqs"
+  endpoint  = aws_sqs_queue.this.arn
+}
+
+resource "null_resource" "this" {
+  provisioner "local-exec" {
+    command = join(" ", [
+      "aws sns publish ",
+      "--topic-arn ${aws_sns_topic.this.arn}",
+      "--message 'Hello World!'",
+      "--profile ${var.profile}",
+      "--region ${var.default-region}"
+      ]
+    )
+  }
+
+  depends_on = [aws_sns_topic_subscription.this]
+}
diff --git a/terraform/ecc-aws-560-unused_sns_topic/green/terraform.tfvars b/terraform/ecc-aws-560-unused_sns_topic/green/terraform.tfvars
@@ -0,0 +1,2 @@
+profile        = "c7n"
+default-region = "us-east-1"
diff --git a/terraform/ecc-aws-560-unused_sns_topic/green/variables.tf b/terraform/ecc-aws-560-unused_sns_topic/green/variables.tf
@@ -0,0 +1,9 @@
+variable "default-region" {
+  type        = string
+  description = "Default region for resources will be created"
+}
+
+variable "profile" {
+  type        = string
+  description = "Profile name configured before running apply"
+}
diff --git a/terraform/ecc-aws-560-unused_sns_topic/iam/560-policy.json b/terraform/ecc-aws-560-unused_sns_topic/iam/560-policy.json
@@ -0,0 +1,15 @@
+{
+    "Version": "2012-10-17",
+    "Statement": [
+        {
+            "Effect": "Allow",
+            "Action": [
+                "sns:ListTopics",
+                "sns:GetTopicAttributes",
+                "tag:GetResources",
+                "cloudwatch:GetMetricStatistics"
+            ],
+            "Resource": "*"
+        }
+    ]
+}
diff --git a/terraform/ecc-aws-560-unused_sns_topic/red/provider.tf b/terraform/ecc-aws-560-unused_sns_topic/red/provider.tf
@@ -0,0 +1,20 @@
+terraform {
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "~> 4"
+    }
+  }
+}
+
+provider "aws" {
+  profile = var.profile
+  region  = var.default-region
+
+  default_tags {
+    tags = {
+      CustodianRule    = "ecc-aws-560-unused_sns_topic"
+      ComplianceStatus = "Red"
+    }
+  }
+}
diff --git a/terraform/ecc-aws-560-unused_sns_topic/red/sns.tf b/terraform/ecc-aws-560-unused_sns_topic/red/sns.tf
@@ -0,0 +1,3 @@
+resource "aws_sns_topic" "this" {
+  name = "560-sns-red"
+}
diff --git a/terraform/ecc-aws-560-unused_sns_topic/red/terraform.tfvars b/terraform/ecc-aws-560-unused_sns_topic/red/terraform.tfvars
@@ -0,0 +1,2 @@
+profile        = "c7n"
+default-region = "us-east-1"
diff --git a/terraform/ecc-aws-560-unused_sns_topic/red/variables.tf b/terraform/ecc-aws-560-unused_sns_topic/red/variables.tf
@@ -0,0 +1,9 @@
+variable "default-region" {
+  type        = string
+  description = "Default region for resources will be created"
+}
+
+variable "profile" {
+  type        = string
+  description = "Profile name configured before running apply"
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/placebo-green/monitoring.GetMetricStatistics_1.json b/tests/ecc-aws-560-unused_sns_topic/placebo-green/monitoring.GetMetricStatistics_1.json
@@ -0,0 +1,23 @@
+{
+    "status_code": 200,
+    "data": {
+        "Label": "NumberOfMessagesPublished",
+        "Datapoints": [
+            {
+                "Timestamp": {
+                    "__class__": "datetime",
+                    "year": 2023,
+                    "month": 8,
+                    "day": 20,
+                    "hour": 18,
+                    "minute": 55,
+                    "second": 0,
+                    "microsecond": 0
+                },
+                "Sum": 1.0,
+                "Unit": "Count"
+            }
+        ],
+        "ResponseMetadata": {}
+    }
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/placebo-green/sns.GetTopicAttributes_1.json b/tests/ecc-aws-560-unused_sns_topic/placebo-green/sns.GetTopicAttributes_1.json
@@ -0,0 +1,21 @@
+{
+    "status_code": 200,
+    "data": {
+        "Attributes": {
+            "Policy": "{\"Version\":\"2008-10-17\",\"Id\":\"__default_policy_ID\",\"Statement\":[{\"Sid\":\"__default_statement_ID\",\"Effect\":\"Allow\",\"Principal\":{\"AWS\":\"*\"},\"Action\":[\"SNS:GetTopicAttributes\",\"SNS:SetTopicAttributes\",\"SNS:AddPermission\",\"SNS:RemovePermission\",\"SNS:DeleteTopic\",\"SNS:Subscribe\",\"SNS:ListSubscriptionsByTopic\",\"SNS:Publish\"],\"Resource\":\"arn:aws:sns:us-east-1:111111111111:560-sns-green\",\"Condition\":{\"StringEquals\":{\"AWS:SourceOwner\":\"111111111111\"}}}]}",
+            "LambdaSuccessFeedbackSampleRate": "0",
+            "Owner": "111111111111",
+            "SubscriptionsPending": "0",
+            "TopicArn": "arn:aws:sns:us-east-1:111111111111:560-sns-green",
+            "EffectiveDeliveryPolicy": "{\"http\":{\"defaultHealthyRetryPolicy\":{\"minDelayTarget\":20,\"maxDelayTarget\":20,\"numRetries\":3,\"numMaxDelayRetries\":0,\"numNoDelayRetries\":0,\"numMinDelayRetries\":0,\"backoffFunction\":\"linear\"},\"disableSubscriptionOverrides\":false,\"defaultRequestPolicy\":{\"headerContentType\":\"text/plain; charset=UTF-8\"}}}",
+            "FirehoseSuccessFeedbackSampleRate": "0",
+            "SubscriptionsConfirmed": "1",
+            "SQSSuccessFeedbackSampleRate": "0",
+            "HTTPSuccessFeedbackSampleRate": "0",
+            "ApplicationSuccessFeedbackSampleRate": "0",
+            "DisplayName": "",
+            "SubscriptionsDeleted": "0"
+        },
+        "ResponseMetadata": {}
+    }
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/placebo-green/sns.ListTopics_1.json b/tests/ecc-aws-560-unused_sns_topic/placebo-green/sns.ListTopics_1.json
@@ -0,0 +1,11 @@
+{
+    "status_code": 200,
+    "data": {
+        "Topics": [
+            {
+                "TopicArn": "arn:aws:sns:us-east-1:111111111111:560-sns-green"
+            }
+        ],
+        "ResponseMetadata": {}
+    }
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/placebo-green/tagging.GetResources_1.json b/tests/ecc-aws-560-unused_sns_topic/placebo-green/tagging.GetResources_1.json
@@ -0,0 +1,22 @@
+{
+    "status_code": 200,
+    "data": {
+        "PaginationToken": "",
+        "ResourceTagMappingList": [
+            {
+                "ResourceARN": "arn:aws:sns:us-east-1:111111111111:560-sns-green",
+                "Tags": [
+                    {
+                        "Key": "CustodianRule",
+                        "Value": "ecc-aws-560-unused_sns_topic"
+                    },
+                    {
+                        "Key": "ComplianceStatus",
+                        "Value": "Green"
+                    }
+                ]
+            }
+        ],
+        "ResponseMetadata": {}
+    }
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/placebo-red/monitoring.GetMetricStatistics_1.json b/tests/ecc-aws-560-unused_sns_topic/placebo-red/monitoring.GetMetricStatistics_1.json
@@ -0,0 +1,8 @@
+{
+    "status_code": 200,
+    "data": {
+        "Label": "NumberOfMessagesPublished",
+        "Datapoints": [],
+        "ResponseMetadata": {}
+    }
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/placebo-red/sns.GetTopicAttributes_1.json b/tests/ecc-aws-560-unused_sns_topic/placebo-red/sns.GetTopicAttributes_1.json
@@ -0,0 +1,21 @@
+{
+    "status_code": 200,
+    "data": {
+        "Attributes": {
+            "Policy": "{\"Version\":\"2008-10-17\",\"Id\":\"__default_policy_ID\",\"Statement\":[{\"Sid\":\"__default_statement_ID\",\"Effect\":\"Allow\",\"Principal\":{\"AWS\":\"*\"},\"Action\":[\"SNS:GetTopicAttributes\",\"SNS:SetTopicAttributes\",\"SNS:AddPermission\",\"SNS:RemovePermission\",\"SNS:DeleteTopic\",\"SNS:Subscribe\",\"SNS:ListSubscriptionsByTopic\",\"SNS:Publish\"],\"Resource\":\"arn:aws:sns:us-east-1:111111111111:560-sns-red\",\"Condition\":{\"StringEquals\":{\"AWS:SourceOwner\":\"111111111111\"}}}]}",
+            "LambdaSuccessFeedbackSampleRate": "0",
+            "Owner": "111111111111",
+            "SubscriptionsPending": "0",
+            "TopicArn": "arn:aws:sns:us-east-1:111111111111:560-sns-red",
+            "EffectiveDeliveryPolicy": "{\"http\":{\"defaultHealthyRetryPolicy\":{\"minDelayTarget\":20,\"maxDelayTarget\":20,\"numRetries\":3,\"numMaxDelayRetries\":0,\"numNoDelayRetries\":0,\"numMinDelayRetries\":0,\"backoffFunction\":\"linear\"},\"disableSubscriptionOverrides\":false,\"defaultRequestPolicy\":{\"headerContentType\":\"text/plain; charset=UTF-8\"}}}",
+            "FirehoseSuccessFeedbackSampleRate": "0",
+            "SubscriptionsConfirmed": "0",
+            "SQSSuccessFeedbackSampleRate": "0",
+            "HTTPSuccessFeedbackSampleRate": "0",
+            "ApplicationSuccessFeedbackSampleRate": "0",
+            "DisplayName": "",
+            "SubscriptionsDeleted": "0"
+        },
+        "ResponseMetadata": {}
+    }
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/placebo-red/sns.ListTopics_1.json b/tests/ecc-aws-560-unused_sns_topic/placebo-red/sns.ListTopics_1.json
@@ -0,0 +1,11 @@
+{
+    "status_code": 200,
+    "data": {
+        "Topics": [
+            {
+                "TopicArn": "arn:aws:sns:us-east-1:111111111111:560-sns-red"
+            }
+        ],
+        "ResponseMetadata": {}
+    }
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/placebo-red/tagging.GetResources_1.json b/tests/ecc-aws-560-unused_sns_topic/placebo-red/tagging.GetResources_1.json
@@ -0,0 +1,22 @@
+{
+    "status_code": 200,
+    "data": {
+        "PaginationToken": "",
+        "ResourceTagMappingList": [
+            {
+                "ResourceARN": "arn:aws:sns:us-east-1:111111111111:560-sns-red",
+                "Tags": [
+                    {
+                        "Key": "CustodianRule",
+                        "Value": "ecc-aws-560-unused_sns_topic"
+                    },
+                    {
+                        "Key": "ComplianceStatus",
+                        "Value": "Red"
+                    }
+                ]
+            }
+        ],
+        "ResponseMetadata": {}
+    }
+}
diff --git a/tests/ecc-aws-560-unused_sns_topic/red_policy_test.py b/tests/ecc-aws-560-unused_sns_topic/red_policy_test.py
@@ -0,0 +1,6 @@
+class PolicyTest(object):
+
+   def test_resources(self, base_test, resources):
+        base_test.assertEqual(len(resources), 1)
+        base_test.assertEqual(resources[0]["SubscriptionsConfirmed"], "0")
+        base_test.assertEqual(resources[0]["c7n.metrics"]["AWS/SNS.NumberOfMessagesPublished.Sum.30"][0]["Sum"], 0)