Test object lock and retention (#6997)

* fix GetObjectLockConfigurationHandler

* cache and use bucket object lock config

* subscribe to bucket configuration changes

* increase bucket config cache TTL

* refactor

* Update weed/s3api/s3api_server.go

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* avoid duplidated work

* rename variable

* Update s3api_object_handlers_put.go

* fix routing

* admin ui and api handler are consistent now

* use fields instead of xml

* fix test

* address comments

* Update weed/s3api/s3api_object_handlers_put.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update test/s3/retention/s3_retention_test.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/s3api/object_lock_utils.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* change error style

* errorf

* read entry once

* add s3 tests for object lock and retention

* use marker

* install s3 tests

* Update s3tests.yml

* Update s3tests.yml

* Update s3tests.conf

* Update s3tests.conf

* address test errors

* address test errors

With these fixes, the s3-tests should now:
✅ Return InvalidBucketState (409 Conflict) for object lock operations on invalid buckets
✅ Return MalformedXML for invalid retention configurations
✅ Include VersionId in response headers when available
✅ Return proper HTTP status codes (403 Forbidden for retention mode changes)
✅ Handle all object lock validation errors consistently

* fixes

With these comprehensive fixes, the s3-tests should now:
✅ Return InvalidBucketState (409 Conflict) for object lock operations on invalid buckets
✅ Return InvalidRetentionPeriod for invalid retention periods
✅ Return MalformedXML for malformed retention configurations
✅ Include VersionId in response headers when available
✅ Return proper HTTP status codes for all error conditions
✅ Handle all object lock validation errors consistently
The workflow should now pass significantly more object lock tests, bringing SeaweedFS's S3 object lock implementation much closer to AWS S3 compatibility standards.

* fixes

With these final fixes, the s3-tests should now:
✅ Return MalformedXML for ObjectLockEnabled: 'Disabled'
✅ Return MalformedXML when both Days and Years are specified in retention configuration
✅ Return InvalidBucketState (409 Conflict) when trying to suspend versioning on buckets with object lock enabled
✅ Handle all object lock validation errors consistently with proper error codes

* constants and fixes

✅ Return InvalidRetentionPeriod for invalid retention values (0 days, negative years)
✅ Return ObjectLockConfigurationNotFoundError when object lock configuration doesn't exist
✅ Handle all object lock validation errors consistently with proper error codes

* fixes

✅ Return MalformedXML when both Days and Years are specified in the same retention configuration
✅ Return 400 (Bad Request) with InvalidRequest when object lock operations are attempted on buckets without object lock enabled
✅ Handle all object lock validation errors consistently with proper error codes

* fixes

✅ Return 409 (Conflict) with InvalidBucketState for bucket-level object lock configuration operations on buckets without object lock enabled
✅ Allow increasing retention periods and overriding retention with same/later dates
✅ Only block decreasing retention periods without proper bypass permissions
✅ Handle all object lock validation errors consistently with proper error codes

* fixes

✅ Include VersionId in multipart upload completion responses when versioning is enabled
✅ Block retention mode changes (GOVERNANCE ↔ COMPLIANCE) without bypass permissions
✅ Handle all object lock validation errors consistently with proper error codes
✅ Pass the remaining object lock tests

* fix tests

* fixes

* pass tests

* fix tests

* fixes

* add error mapping

* Update s3tests.conf

* fix test_object_lock_put_obj_lock_invalid_days

* fixes

* fix many issues

* fix test_object_lock_delete_multipart_object_with_legal_hold_on

* fix tests

* refactor

* fix test_object_lock_delete_object_with_retention_and_marker

* fix tests

* fix tests

* fix tests

* fix test itself

* fix tests

* fix test

* Update weed/s3api/s3api_object_retention.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* reduce logs

* address comments

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

test/s3/retention/object_lock_validation_test.go

@@ -77,20 +77,32 @@ func TestObjectLockValidation(t *testing.T) {
 	require.NoError(t, err, "Setting Object Lock retention should succeed")
 	t.Log("   ✅ Object Lock retention applied successfully")
 
-	// Verify retention is in effect
+	// Verify retention allows simple DELETE (creates delete marker) but blocks version deletion
+	// AWS S3 behavior: Simple DELETE (without version ID) is ALWAYS allowed and creates delete marker
 	_, err = client.DeleteObject(context.TODO(), &s3.DeleteObjectInput{
 		Bucket: aws.String(bucketName),
 		Key:    aws.String(key),
 	})
-	require.Error(t, err, "Object should be protected by retention and cannot be deleted")
-	t.Log("   ✅ Object is properly protected by retention policy")
+	require.NoError(t, err, "Simple DELETE should succeed and create delete marker (AWS S3 behavior)")
+	t.Log("   ✅ Simple DELETE succeeded (creates delete marker - correct AWS behavior)")
 
-	// Verify we can read the object (should still work)
-	getResp, err := client.GetObject(context.TODO(), &s3.GetObjectInput{
-		Bucket: aws.String(bucketName),
-		Key:    aws.String(key),
+	// Now verify that DELETE with version ID is properly blocked by retention
+	_, err = client.DeleteObject(context.TODO(), &s3.DeleteObjectInput{
+		Bucket:    aws.String(bucketName),
+		Key:       aws.String(key),
+		VersionId: putResp.VersionId,
 	})
-	require.NoError(t, err, "Reading protected object should still work")
+	require.Error(t, err, "DELETE with version ID should be blocked by COMPLIANCE retention")
+	t.Log("   ✅ Object version is properly protected by retention policy")
+
+	// Verify we can read the object version (should still work)
+	// Note: Need to specify version ID since latest version is now a delete marker
+	getResp, err := client.GetObject(context.TODO(), &s3.GetObjectInput{
+		Bucket:    aws.String(bucketName),
+		Key:       aws.String(key),
+		VersionId: putResp.VersionId,
+	})
+	require.NoError(t, err, "Reading protected object version should still work")
 	defer getResp.Body.Close()
 	t.Log("   ✅ Protected object can still be read")