prometheus/storage/remote/sigv4_test.go
Robert Fratto 5b78aa0649
Contribute grafana/agent sigv4 code (#8509)
* Contribute grafana/agent sigv4 code
* address review feedback
  - move validation logic for RemoteWrite into unmarshal
  - copy configuration fields from ec2 SD config
  - remove enabled field, use pointer for enabling sigv4
* Update config/config.go
* Don't provide credentials if secret key / access key left blank
* Add SigV4 headers to the list of unchangeable headers.
* sigv4: don't include all headers in signature
* only test for equality in the authorization header, not the signed date
* address review feedback
  1. s/httpClientConfigEnabled/httpClientConfigAuthEnabled
  2. bearer_token tuples to "authorization"
  3. Un-export NewSigV4RoundTripper
* add x-amz-content-sha256 to list of unchangeable headers
* Document sigv4 configuration
* add suggestion for using default AWS SDK credentials

Signed-off-by: Robert Fratto <robertfratto@gmail.com>
Co-authored-by: Julien Pivotto <roidelapluie@gmail.com>
2021-03-08 12:20:09 -07:00

93 lines
2.7 KiB
Go

// Copyright 2021 The Prometheus Authors
// 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 remote
import (
"net/http"
"os"
"strings"
"testing"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
signer "github.com/aws/aws-sdk-go/aws/signer/v4"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/stretchr/testify/require"
)
func TestSigV4_Inferred_Region(t *testing.T) {
os.Setenv("AWS_ACCESS_KEY_ID", "secret")
os.Setenv("AWS_SECRET_ACCESS_KEY", "token")
os.Setenv("AWS_REGION", "us-west-2")
sess, err := session.NewSession(&aws.Config{
// Setting to an empty string to demostrate the default value from the yaml
// won't override the environment's region.
Region: aws.String(""),
})
require.NoError(t, err)
_, err = sess.Config.Credentials.Get()
require.NoError(t, err)
require.NotNil(t, sess.Config.Region)
require.Equal(t, "us-west-2", *sess.Config.Region)
}
func TestSigV4RoundTripper(t *testing.T) {
var gotReq *http.Request
rt := &sigV4RoundTripper{
region: "us-east-2",
next: promhttp.RoundTripperFunc(func(req *http.Request) (*http.Response, error) {
gotReq = req
return &http.Response{StatusCode: http.StatusOK}, nil
}),
signer: signer.NewSigner(credentials.NewStaticCredentials(
"test-id",
"secret",
"token",
)),
}
rt.pool.New = rt.newBuf
cli := &http.Client{Transport: rt}
req, err := http.NewRequest(http.MethodPost, "google.com", strings.NewReader("Hello, world!"))
require.NoError(t, err)
_, err = cli.Do(req)
require.NoError(t, err)
require.NotNil(t, gotReq)
origReq := gotReq
require.NotEmpty(t, origReq.Header.Get("Authorization"))
require.NotEmpty(t, origReq.Header.Get("X-Amz-Date"))
// Perform the same request but with a header that shouldn't included in the
// signature; validate that the Authorization signature matches.
t.Run("Ignored Headers", func(t *testing.T) {
req, err := http.NewRequest(http.MethodPost, "google.com", strings.NewReader("Hello, world!"))
require.NoError(t, err)
req.Header.Add("Uber-Trace-Id", "some-trace-id")
_, err = cli.Do(req)
require.NoError(t, err)
require.NotNil(t, gotReq)
require.Equal(t, origReq.Header.Get("Authorization"), gotReq.Header.Get("Authorization"))
})
}