minio/cmd/signature-v4_test.go
Harshavardhana fef5416b3c Support unknown gateway errors and convert at handler layer (#7219)
Different gateway implementations due to different backend
API errors, might return different unsupported errors at
our handler layer. Current code posed a problem for us because
this information was lost and we would convert it to InternalError
in this situation all S3 clients end up retrying the request.

To avoid this unexpected situation implement a way to support
this cleanly such that the underlying information is not lost
which is returned by gateway.
2019-02-12 14:55:52 +05:30

302 lines
10 KiB
Go

/*
* Minio Cloud Storage, (C) 2016, 2017 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"fmt"
"net/http"
"net/url"
"os"
"testing"
"time"
)
func niceError(code APIErrorCode) string {
// Special-handle ErrNone
if code == ErrNone {
return "ErrNone"
}
return fmt.Sprintf("%s (%s)", errorCodes[code].Code, errorCodes[code].Description)
}
func TestDoesPolicySignatureMatch(t *testing.T) {
credentialTemplate := "%s/%s/%s/s3/aws4_request"
now := UTCNow()
accessKey := globalServerConfig.GetCredential().AccessKey
testCases := []struct {
form http.Header
expected APIErrorCode
}{
// (0) It should fail if 'X-Amz-Credential' is missing.
{
form: http.Header{},
expected: ErrMissingFields,
},
// (1) It should fail if the access key is incorrect.
{
form: http.Header{
"X-Amz-Credential": []string{fmt.Sprintf(credentialTemplate, "EXAMPLEINVALIDEXAMPL", now.Format(yyyymmdd), globalMinioDefaultRegion)},
},
expected: ErrInvalidAccessKeyID,
},
// (2) It should fail with a bad signature.
{
form: http.Header{
"X-Amz-Credential": []string{fmt.Sprintf(credentialTemplate, accessKey, now.Format(yyyymmdd), globalMinioDefaultRegion)},
"X-Amz-Date": []string{now.Format(iso8601Format)},
"X-Amz-Signature": []string{"invalidsignature"},
"Policy": []string{"policy"},
},
expected: ErrSignatureDoesNotMatch,
},
// (3) It should succeed if everything is correct.
{
form: http.Header{
"X-Amz-Credential": []string{
fmt.Sprintf(credentialTemplate, accessKey, now.Format(yyyymmdd), globalMinioDefaultRegion),
},
"X-Amz-Date": []string{now.Format(iso8601Format)},
"X-Amz-Signature": []string{
getSignature(getSigningKey(globalServerConfig.GetCredential().SecretKey, now,
globalMinioDefaultRegion), "policy"),
},
"Policy": []string{"policy"},
},
expected: ErrNone,
},
}
// Run each test case individually.
for i, testCase := range testCases {
code := doesPolicySignatureMatch(testCase.form)
if code != testCase.expected {
t.Errorf("(%d) expected to get %s, instead got %s", i, niceError(testCase.expected), niceError(code))
}
}
}
func TestDoesPresignedSignatureMatch(t *testing.T) {
obj, fsDir, err := prepareFS()
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(fsDir)
if err = newTestConfig(globalMinioDefaultRegion, obj); err != nil {
t.Fatal(err)
}
// sha256 hash of "payload"
payloadSHA256 := "239f59ed55e737c77147cf55ad0c1b030b6d7ee748a7426952f9b852d5a935e5"
now := UTCNow()
credentialTemplate := "%s/%s/%s/s3/aws4_request"
region := globalServerConfig.GetRegion()
accessKeyID := globalServerConfig.GetCredential().AccessKey
testCases := []struct {
queryParams map[string]string
headers map[string]string
region string
expected APIErrorCode
}{
// (0) Should error without a set URL query.
{
region: globalMinioDefaultRegion,
expected: ErrInvalidQueryParams,
},
// (1) Should error on an invalid access key.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, "Z7IXGOO6BZ0REAN1Q26I", now.Format(yyyymmdd), "us-west-1"),
},
region: "us-west-1",
expected: ErrInvalidAccessKeyID,
},
// (2) Should NOT fail with an invalid region if it doesn't verify it.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, accessKeyID, now.Format(yyyymmdd), "us-west-1"),
"X-Amz-Content-Sha256": payloadSHA256,
},
region: "us-west-1",
expected: ErrUnsignedHeaders,
},
// (3) Should fail to extract headers if the host header is not signed.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, accessKeyID, now.Format(yyyymmdd), region),
"X-Amz-Content-Sha256": payloadSHA256,
},
region: region,
expected: ErrUnsignedHeaders,
},
// (4) Should give an expired request if it has expired.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.AddDate(0, 0, -2).Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, accessKeyID, now.Format(yyyymmdd), region),
"X-Amz-Content-Sha256": payloadSHA256,
},
headers: map[string]string{
"X-Amz-Date": now.AddDate(0, 0, -2).Format(iso8601Format),
"X-Amz-Content-Sha256": payloadSHA256,
},
region: region,
expected: ErrExpiredPresignRequest,
},
// (5) Should error if the signature is incorrect.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, accessKeyID, now.Format(yyyymmdd), region),
"X-Amz-Content-Sha256": payloadSHA256,
},
headers: map[string]string{
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Content-Sha256": payloadSHA256,
},
region: region,
expected: ErrSignatureDoesNotMatch,
},
// (6) Should error if the request is not ready yet, ie X-Amz-Date is in the future.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.Add(1 * time.Hour).Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, accessKeyID, now.Format(yyyymmdd), region),
"X-Amz-Content-Sha256": payloadSHA256,
},
headers: map[string]string{
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Content-Sha256": payloadSHA256,
},
region: region,
expected: ErrRequestNotReadyYet,
},
// (7) Should not error with invalid region instead, call should proceed
// with sigature does not match.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, accessKeyID, now.Format(yyyymmdd), region),
"X-Amz-Content-Sha256": payloadSHA256,
},
headers: map[string]string{
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Content-Sha256": payloadSHA256,
},
region: "",
expected: ErrSignatureDoesNotMatch,
},
// (8) Should error with signature does not match. But handles
// query params which do not precede with "x-amz-" header.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, accessKeyID, now.Format(yyyymmdd), region),
"X-Amz-Content-Sha256": payloadSHA256,
"response-content-type": "application/json",
},
headers: map[string]string{
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Content-Sha256": payloadSHA256,
},
region: "",
expected: ErrSignatureDoesNotMatch,
},
// (9) Should error with unsigned headers.
{
queryParams: map[string]string{
"X-Amz-Algorithm": signV4Algorithm,
"X-Amz-Date": now.Format(iso8601Format),
"X-Amz-Expires": "60",
"X-Amz-Signature": "badsignature",
"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
"X-Amz-Credential": fmt.Sprintf(credentialTemplate, accessKeyID, now.Format(yyyymmdd), region),
"X-Amz-Content-Sha256": payloadSHA256,
"response-content-type": "application/json",
},
headers: map[string]string{
"X-Amz-Date": now.Format(iso8601Format),
},
region: "",
expected: ErrUnsignedHeaders,
},
}
// Run each test case individually.
for i, testCase := range testCases {
// Turn the map[string]string into map[string][]string, because Go.
query := url.Values{}
for key, value := range testCase.queryParams {
query.Set(key, value)
}
// Create a request to use.
req, e := http.NewRequest(http.MethodGet, "http://host/a/b?"+query.Encode(), nil)
if e != nil {
t.Errorf("(%d) failed to create http.Request, got %v", i, e)
}
// Do the same for the headers.
for key, value := range testCase.headers {
req.Header.Set(key, value)
}
// Check if it matches!
err := doesPresignedSignatureMatch(payloadSHA256, req, testCase.region)
if err != testCase.expected {
t.Errorf("(%d) expected to get %s, instead got %s", i, niceError(testCase.expected), niceError(err))
}
}
}