Set default bucket encryption during bucket creation

All S3 buckets have encryption configured by default,
and objects are automatically encrypted by using server
side encryption. When we do get-bucker-encryption on
any bucket we get the the default encryption configuration.

With this patch we set default encryption on bucket while
creating the bucket and follow the behavior of S3 bucket

Signed-off-by: Vinayakswami Hariharmath <[email protected]>

src/endpoint/s3/ops/s3_put_bucket.js

@@ -9,6 +9,15 @@ async function put_bucket(req, res) {
     const lock_enabled = config.WORM_ENABLED ? req.headers['x-amz-bucket-object-lock-enabled'] &&
         req.headers['x-amz-bucket-object-lock-enabled'].toUpperCase() === 'TRUE' : undefined;
     await req.object_sdk.create_bucket({ name: req.params.bucket, lock_enabled: lock_enabled });
+
+    // Set default server side bucket encryption
+    // More details: https://docs.aws.amazon.com/AmazonS3/latest/userguide/bucket-encryption.html
+    await req.object_sdk.put_bucket_encryption({
+        name: req.params.bucket,
+        encryption: {
+            "algorithm": "AES256",
+        }
+    });
     res.setHeader('Location', '/' + req.params.bucket);
 }
 

src/test/unit_tests/test_s3_encryption.js

@@ -71,14 +71,22 @@ mocha.describe('Bucket Encryption Operations', async () => {
         await local_s3.createBucket({ Bucket: BKT });
     });
 
-    mocha.it('should get bucket encryption error without encryption configured', async () => {
+    mocha.it('getBucketEncryption should return the default server side encryption configuration', async () => {
         try {
             const res = await local_s3.getBucketEncryption({ Bucket: BKT });
-            throw new Error(`Expected to get error with unconfigured bucket encryption ${res}`);
+            const expected_response = {
+                ServerSideEncryptionConfiguration: {
+                    Rules: [{
+                        ApplyServerSideEncryptionByDefault: {
+                            SSEAlgorithm: 'AES256'
+                        }
+                    }]
+                }
+            };
+            const res_without_metadata = _.omit(res, '$metadata');
+            assert.deepEqual(res_without_metadata, expected_response);
         } catch (error) {
-            assert(error.message === 'The server side encryption configuration was not found.', `Error message does not match got: ${error.message}`);
-            assert(error.Code === 'ServerSideEncryptionConfigurationNotFoundError', `Error code does not match got: ${error.Code}`);
-            assert(error.$metadata.httpStatusCode === 404, `Error status code does not match got: ${error.$metadata.httpStatusCode}`);
+            throw new Error(`The server side encryption configuration was not found ${error.message}`);
         }
     });