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lego/acme/tls_alpn_challenge_test.go
2018-09-15 19:16:35 +02:00

90 lines
2.8 KiB
Go

package acme
import (
"crypto/rand"
"crypto/rsa"
"crypto/sha256"
"crypto/subtle"
"crypto/tls"
"encoding/asn1"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestTLSALPNChallenge(t *testing.T) {
domain := "localhost:23457"
mockValidate := func(_ *jws, _, _ string, chlng challenge) error {
conn, err := tls.Dial("tcp", domain, &tls.Config{
InsecureSkipVerify: true,
})
assert.NoError(t, err, "Expected to connect to challenge server without an error")
// Expect the server to only return one certificate
connState := conn.ConnectionState()
assert.Len(t, connState.PeerCertificates, 1, "Expected the challenge server to return exactly one certificate")
remoteCert := connState.PeerCertificates[0]
assert.Len(t, remoteCert.DNSNames, 1, "Expected the challenge certificate to have exactly one DNSNames entry")
assert.Equal(t, domain, remoteCert.DNSNames[0], "challenge certificate DNSName ")
assert.NotEmpty(t, remoteCert.Extensions, "Expected the challenge certificate to contain extensions")
idx := -1
for i, ext := range remoteCert.Extensions {
if idPeAcmeIdentifierV1.Equal(ext.Id) {
idx = i
break
}
}
require.NotEqual(t, -1, idx, "Expected the challenge certificate to contain an extension with the id-pe-acmeIdentifier id,")
ext := remoteCert.Extensions[idx]
assert.True(t, ext.Critical, "Expected the challenge certificate id-pe-acmeIdentifier extension to be marked as critical")
zBytes := sha256.Sum256([]byte(chlng.KeyAuthorization))
value, err := asn1.Marshal(zBytes[:sha256.Size])
require.NoError(t, err, "Expected marshaling of the keyAuth to return no error")
if subtle.ConstantTimeCompare(value[:], ext.Value) != 1 {
t.Errorf("Expected the challenge certificate id-pe-acmeIdentifier extension to contain the SHA-256 digest of the keyAuth, %v, but was %v", zBytes[:], ext.Value)
}
return nil
}
privKey, err := rsa.GenerateKey(rand.Reader, 512)
require.NoError(t, err, "Could not generate test key")
solver := &tlsALPNChallenge{
jws: &jws{privKey: privKey},
validate: mockValidate,
provider: &TLSALPNProviderServer{port: "23457"},
}
clientChallenge := challenge{Type: string(TLSALPN01), Token: "tlsalpn1"}
err = solver.Solve(clientChallenge, domain)
assert.NoError(t, err)
}
func TestTLSALPNChallengeInvalidPort(t *testing.T) {
privKey, err := rsa.GenerateKey(rand.Reader, 128)
require.NoError(t, err, "Could not generate test key")
solver := &tlsALPNChallenge{
jws: &jws{privKey: privKey},
validate: stubValidate,
provider: &TLSALPNProviderServer{port: "123456"},
}
clientChallenge := challenge{Type: string(TLSALPN01), Token: "tlsalpn1"}
err = solver.Solve(clientChallenge, "localhost:123456")
require.Error(t, err)
assert.Contains(t, err.Error(), "invalid port")
assert.Contains(t, err.Error(), "123456")
}