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Remove embedded issuer certificates from issued certificate if bundle is false (#1655)

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Co-authored-by: Fernandez Ludovic <ldez@users.noreply.github.com>
This commit is contained in:
Ricardo 2022-09-17 19:01:08 +02:00 committed by GitHub
parent e96d2c08fe
commit e7ffbe77f8
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 35 additions and 12 deletions
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6
acme/api/certificate.go
View file

@ -1,6 +1,7 @@
package api
import (
"bytes"
"crypto/x509"
"encoding/pem"
"errors"
@ -87,6 +88,11 @@ func (c *CertificateService) getCertificateChain(cert []byte, headers http.Heade
// See https://community.letsencrypt.org/t/acme-v2-no-up-link-in-response/64962
_, issuer := pem.Decode(cert)
if issuer != nil {
// If bundle is false, we want to return a single certificate.
// To do this, we remove the issuer cert(s) from the issued cert.
if !bundle {
cert = bytes.TrimSuffix(cert, issuer)
}
return &acme.RawCertificate{Cert: cert, Issuer: issuer}
}

41
certificate/certificates_test.go
View file

@ -16,6 +16,27 @@ import (
"github.com/stretchr/testify/require"
)
const certResponseNoBundleMock = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
const certResponseMock = `-----BEGIN CERTIFICATE-----
MIIDEDCCAfigAwIBAgIHPhckqW5fPDANBgkqhkiG9w0BAQsFADAoMSYwJAYDVQQD
Ex1QZWJibGUgSW50ZXJtZWRpYXRlIENBIDM5NWU2MTAeFw0xODExMDcxNzQ2NTZa
@ -179,9 +200,8 @@ func Test_checkResponse(t *testing.T) {
},
}
certRes := &Resource{}
bundle := false
valid, err := certifier.checkResponse(order, certRes, bundle, "")
valid, err := certifier.checkResponse(order, certRes, true, "")
require.NoError(t, err)
assert.True(t, valid)
assert.NotNil(t, certRes)
@ -230,9 +250,8 @@ func Test_checkResponse_issuerRelUp(t *testing.T) {
},
}
certRes := &Resource{}
bundle := false
valid, err := certifier.checkResponse(order, certRes, bundle, "")
valid, err := certifier.checkResponse(order, certRes, true, "")
require.NoError(t, err)
assert.True(t, valid)
assert.NotNil(t, certRes)
@ -245,7 +264,7 @@ func Test_checkResponse_issuerRelUp(t *testing.T) {
assert.Equal(t, issuerMock, string(certRes.IssuerCertificate), "IssuerCertificate")
}
func Test_checkResponse_embeddedIssuer(t *testing.T) {
func Test_checkResponse_no_bundle(t *testing.T) {
mux, apiURL := tester.SetupFakeAPI(t)
mux.HandleFunc("/certificate", func(w http.ResponseWriter, _ *http.Request) {
@ -271,9 +290,8 @@ func Test_checkResponse_embeddedIssuer(t *testing.T) {
},
}
certRes := &Resource{}
bundle := false
valid, err := certifier.checkResponse(order, certRes, bundle, "")
valid, err := certifier.checkResponse(order, certRes, false, "")
require.NoError(t, err)
assert.True(t, valid)
assert.NotNil(t, certRes)
@ -282,7 +300,7 @@ func Test_checkResponse_embeddedIssuer(t *testing.T) {
assert.Contains(t, certRes.CertURL, "/certificate")
assert.Nil(t, certRes.CSR)
assert.Nil(t, certRes.PrivateKey)
assert.Equal(t, certResponseMock, string(certRes.Certificate), "Certificate")
assert.Equal(t, certResponseNoBundleMock, string(certRes.Certificate), "Certificate")
assert.Equal(t, issuerMock, string(certRes.IssuerCertificate), "IssuerCertificate")
}
@ -324,9 +342,8 @@ func Test_checkResponse_alternate(t *testing.T) {
certRes := &Resource{
Domain: "example.com",
}
bundle := false
valid, err := certifier.checkResponse(order, certRes, bundle, "DST Root CA X3")
valid, err := certifier.checkResponse(order, certRes, true, "DST Root CA X3")
require.NoError(t, err)
assert.True(t, valid)
@ -359,7 +376,7 @@ func Test_Get(t *testing.T) {
certifier := NewCertifier(core, &resolverMock{}, CertifierOptions{KeyType: certcrypto.RSA2048})
certRes, err := certifier.Get(apiURL+"/acme/cert/test-cert", false)
certRes, err := certifier.Get(apiURL+"/acme/cert/test-cert", true)
require.NoError(t, err)
assert.NotNil(t, certRes)
@ -376,6 +393,6 @@ type resolverMock struct {
error error
}
func (r *resolverMock) Solve(authorizations []acme.Authorization) error {
func (r *resolverMock) Solve(_ []acme.Authorization) error {
return r.error
}