minio/internal/bucket/encryption/bucket-sse-config_test.go

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// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package sse
import (
"bytes"
"encoding/xml"
"errors"
"testing"
)
// TestParseBucketSSEConfig performs basic sanity tests on ParseBucketSSEConfig
func TestParseBucketSSEConfig(t *testing.T) {
actualAES256NoNSConfig := &BucketSSEConfig{
XMLName: xml.Name{
Local: "ServerSideEncryptionConfiguration",
},
Rules: []Rule{
{
DefaultEncryptionAction: EncryptionAction{
Algorithm: AES256,
},
},
},
}
actualAES256Config := &BucketSSEConfig{
XMLNS: xmlNS,
XMLName: xml.Name{
Local: "ServerSideEncryptionConfiguration",
},
Rules: []Rule{
{
DefaultEncryptionAction: EncryptionAction{
Algorithm: AES256,
},
},
},
}
actualKMSConfig := &BucketSSEConfig{
XMLNS: xmlNS,
XMLName: xml.Name{
Local: "ServerSideEncryptionConfiguration",
},
Rules: []Rule{
{
DefaultEncryptionAction: EncryptionAction{
Algorithm: AWSKms,
MasterKeyID: "arn:aws:kms:us-east-1:1234/5678example",
},
},
},
}
testCases := []struct {
inputXML string
expectedErr error
shouldPass bool
expectedConfig *BucketSSEConfig
}{
// 1. Valid XML SSE-S3
{
inputXML: `<ServerSideEncryptionConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>AES256</SSEAlgorithm></ApplyServerSideEncryptionByDefault></Rule></ServerSideEncryptionConfiguration>`,
expectedErr: nil,
shouldPass: true,
expectedConfig: actualAES256Config,
},
// 2. Valid XML SSE-KMS
{
inputXML: `<ServerSideEncryptionConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>aws:kms</SSEAlgorithm><KMSMasterKeyID>arn:aws:kms:us-east-1:1234/5678example</KMSMasterKeyID></ApplyServerSideEncryptionByDefault></Rule></ServerSideEncryptionConfiguration>`,
expectedErr: nil,
shouldPass: true,
expectedConfig: actualKMSConfig,
},
// 3. Invalid - more than one rule
{
inputXML: `<ServerSideEncryptionConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>AES256</SSEAlgorithm></ApplyServerSideEncryptionByDefault></Rule><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>AES256</SSEAlgorithm></ApplyServerSideEncryptionByDefault></Rule></ServerSideEncryptionConfiguration>`,
expectedErr: errors.New("only one server-side encryption rule is allowed at a time"),
shouldPass: false,
},
// 4. Invalid XML - master key ID present along with AES256
{
inputXML: `<ServerSideEncryptionConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>AES256</SSEAlgorithm><KMSMasterKeyID>arn:aws:kms:us-east-1:1234/5678example</KMSMasterKeyID></ApplyServerSideEncryptionByDefault></Rule></ServerSideEncryptionConfiguration>`,
expectedErr: errors.New("MasterKeyID is allowed with aws:kms only"),
shouldPass: false,
},
// 5. Invalid XML - master key ID not provided when algorithm is set to aws:kms algorithm
{
inputXML: `<ServerSideEncryptionConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>aws:kms</SSEAlgorithm></ApplyServerSideEncryptionByDefault></Rule></ServerSideEncryptionConfiguration>`,
expectedErr: errors.New("MasterKeyID is missing with aws:kms"),
shouldPass: false,
},
// 6. Invalid Algorithm
{
inputXML: `<ServerSideEncryptionConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>InvalidAlgorithm</SSEAlgorithm></ApplyServerSideEncryptionByDefault></Rule></ServerSideEncryptionConfiguration>`,
expectedErr: errors.New("Unknown SSE algorithm"),
shouldPass: false,
},
// 7. Valid XML without the namespace set
{
inputXML: `<ServerSideEncryptionConfiguration><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>AES256</SSEAlgorithm></ApplyServerSideEncryptionByDefault></Rule></ServerSideEncryptionConfiguration>`,
expectedErr: nil,
shouldPass: true,
expectedConfig: actualAES256NoNSConfig,
},
}
for i, tc := range testCases {
_, err := ParseBucketSSEConfig(bytes.NewReader([]byte(tc.inputXML)))
if tc.shouldPass && err != nil {
t.Fatalf("Test case %d: Expected to succeed but got %s", i+1, err)
}
if !tc.shouldPass {
if err == nil || err != nil && err.Error() != tc.expectedErr.Error() {
t.Fatalf("Test case %d: Expected %s but got %s", i+1, tc.expectedErr, err)
}
continue
}
if expectedXML, err := xml.Marshal(tc.expectedConfig); err != nil || !bytes.Equal(expectedXML, []byte(tc.inputXML)) {
t.Fatalf("Test case %d: Expected bucket encryption XML %s but got %s", i+1, string(expectedXML), tc.inputXML)
}
}
}