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758a80e39b
This commit adds basic support for SSE-C / SSE-C copy. This includes functions for determining whether SSE-C is requested by the S3 client and functions for parsing such HTTP headers. All S3 SSE-C parsing errors are exported such that callers can pattern-match to forward the correct error to S3 clients. Further the SSE-C related internal metadata entry-keys are added by this commit.
305 lines
12 KiB
Go
305 lines
12 KiB
Go
// Minio Cloud Storage, (C) 2015, 2016, 2017, 2018 Minio, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package crypto
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import (
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"net/http"
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"testing"
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)
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var s3IsRequestedTests = []struct {
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Header http.Header
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Expected bool
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}{
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{Header: http.Header{"X-Amz-Server-Side-Encryption": []string{"AES256"}}, Expected: true}, // 0
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{Header: http.Header{"X-Amz-Server-Side-Encryption": []string{"AES-256"}}, Expected: true}, // 1
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{Header: http.Header{"X-Amz-Server-Side-Encryption": []string{""}}, Expected: true}, // 2
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{Header: http.Header{"X-Amz-Server-Side-Encryptio": []string{"AES256"}}, Expected: false}, // 3
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}
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func TestS3IsRequested(t *testing.T) {
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for i, test := range s3IsRequestedTests {
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if got := S3.IsRequested(test.Header); got != test.Expected {
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t.Errorf("Test %d: Wanted %v but got %v", i, test.Expected, got)
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}
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}
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}
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var s3ParseTests = []struct {
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Header http.Header
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ExpectedErr error
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}{
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{Header: http.Header{"X-Amz-Server-Side-Encryption": []string{"AES256"}}, ExpectedErr: nil}, // 0
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{Header: http.Header{"X-Amz-Server-Side-Encryption": []string{"AES-256"}}, ExpectedErr: ErrInvalidEncryptionMethod}, // 1
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{Header: http.Header{"X-Amz-Server-Side-Encryption": []string{""}}, ExpectedErr: ErrInvalidEncryptionMethod}, // 2
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{Header: http.Header{"X-Amz-Server-Side-Encryptio": []string{"AES256"}}, ExpectedErr: ErrInvalidEncryptionMethod}, // 3
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}
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func TestS3Parse(t *testing.T) {
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for i, test := range s3ParseTests {
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if err := S3.Parse(test.Header); err != test.ExpectedErr {
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t.Errorf("Test %d: Wanted '%v' but got '%v'", i, test.ExpectedErr, err)
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}
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}
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}
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var ssecIsRequestedTests = []struct {
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Header http.Header
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Expected bool
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}{
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{Header: http.Header{}, Expected: false}, // 0
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{Header: http.Header{"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"}}, Expected: true}, // 1
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{Header: http.Header{"X-Amz-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="}}, Expected: true}, // 2
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{Header: http.Header{"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="}}, Expected: true}, // 3
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{""},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{""},
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{""},
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},
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Expected: true,
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}, // 4
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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Expected: true,
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}, // 5
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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Expected: false,
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}, // 6
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}
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func TestSSECIsRequested(t *testing.T) {
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for i, test := range ssecIsRequestedTests {
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if got := SSEC.IsRequested(test.Header); got != test.Expected {
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t.Errorf("Test %d: Wanted %v but got %v", i, test.Expected, got)
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}
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}
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}
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var ssecCopyIsRequestedTests = []struct {
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Header http.Header
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Expected bool
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}{
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{Header: http.Header{}, Expected: false}, // 0
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{Header: http.Header{"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"}}, Expected: true}, // 1
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{Header: http.Header{"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="}}, Expected: true}, // 2
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{Header: http.Header{"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="}}, Expected: true}, // 3
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{""},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{""},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{""},
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},
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Expected: true,
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}, // 4
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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Expected: true,
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}, // 5
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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Expected: false,
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}, // 6
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}
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func TestSSECopyIsRequested(t *testing.T) {
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for i, test := range ssecCopyIsRequestedTests {
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if got := SSECopy.IsRequested(test.Header); got != test.Expected {
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t.Errorf("Test %d: Wanted %v but got %v", i, test.Expected, got)
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}
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}
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}
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var ssecParseTests = []struct {
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Header http.Header
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ExpectedErr error
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}{
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: nil, // 0
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},
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES-256"}, // invalid algorithm
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: ErrInvalidCustomerAlgorithm, // 1
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},
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{""}, // no client key
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: ErrMissingCustomerKey, // 2
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},
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRr.ZXltdXN0cHJvdmlkZWQ="}, // invalid key
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: ErrInvalidCustomerKey, // 3
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},
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{""}, // no key MD5
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},
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ExpectedErr: ErrMissingCustomerKeyMD5, // 4
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},
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{"DzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="}, // wrong client key
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: ErrCustomerKeyMD5Mismatch, // 5
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},
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{
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Header: http.Header{
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"X-Amz-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Server-Side-Encryption-Customer-Key-Md5": []string{".7PpPLAK26ONlVUGOWlusfg=="}, // wrong key MD5
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},
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ExpectedErr: ErrCustomerKeyMD5Mismatch, // 6
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},
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}
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func TestSSECParse(t *testing.T) {
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var zeroKey [32]byte
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for i, test := range ssecParseTests {
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key, err := SSEC.Parse(test.Header)
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if err != test.ExpectedErr {
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t.Errorf("Test %d: want error '%v' but got '%v'", i, test.ExpectedErr, err)
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}
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if err != nil && key != zeroKey {
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t.Errorf("Test %d: parsing failed and client key is not zero key", i)
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}
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if err == nil && key == zeroKey {
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t.Errorf("Test %d: parsed client key is zero key", i)
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}
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if _, ok := test.Header[SSECKey]; ok {
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t.Errorf("Test %d: client key is not removed from HTTP headers after parsing", i)
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}
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}
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}
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var ssecCopyParseTests = []struct {
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Header http.Header
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ExpectedErr error
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}{
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: nil, // 0
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},
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES-256"}, // invalid algorithm
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: ErrInvalidCustomerAlgorithm, // 1
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},
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{""}, // no client key
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: ErrMissingCustomerKey, // 2
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},
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRr.ZXltdXN0cHJvdmlkZWQ="}, // invalid key
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: ErrInvalidCustomerKey, // 3
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},
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{""}, // no key MD5
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},
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ExpectedErr: ErrMissingCustomerKeyMD5, // 4
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},
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"DzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="}, // wrong client key
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{"7PpPLAK26ONlVUGOWlusfg=="},
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},
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ExpectedErr: ErrCustomerKeyMD5Mismatch, // 5
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},
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{
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Header: http.Header{
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": []string{"MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ="},
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"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": []string{".7PpPLAK26ONlVUGOWlusfg=="}, // wrong key MD5
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},
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ExpectedErr: ErrCustomerKeyMD5Mismatch, // 6
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},
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}
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func TestSSECopyParse(t *testing.T) {
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var zeroKey [32]byte
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for i, test := range ssecCopyParseTests {
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key, err := SSECopy.Parse(test.Header)
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if err != test.ExpectedErr {
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t.Errorf("Test %d: want error '%v' but got '%v'", i, test.ExpectedErr, err)
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}
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if err != nil && key != zeroKey {
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t.Errorf("Test %d: parsing failed and client key is not zero key", i)
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}
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if err == nil && key == zeroKey {
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t.Errorf("Test %d: parsed client key is zero key", i)
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}
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if _, ok := test.Header[SSECKey]; ok {
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t.Errorf("Test %d: client key is not removed from HTTP headers after parsing", i)
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}
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}
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}
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