sftpgo/common/tlsutils_test.go

// Copyright (C) 2019-2022  Nicola Murino
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package common

import (
	"crypto/tls"
	"crypto/x509"
	"os"
	"path/filepath"
	"testing"

	"github.com/stretchr/testify/assert"
)

const (
	serverCert = `-----BEGIN CERTIFICATE-----
MIIEIDCCAgigAwIBAgIRAPOR9zTkX35vSdeyGpF8Rn8wDQYJKoZIhvcNAQELBQAw
EzERMA8GA1UEAxMIQ2VydEF1dGgwHhcNMjEwMTAyMjEyMjU1WhcNMjIwNzAyMjEz
MDUxWjARMQ8wDQYDVQQDEwZzZXJ2ZXIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
ggEKAoIBAQCte0PJhCTNqTiqdwk/s4JanKIMKUVWr2u94a+JYy5gJ9xYXrQ49SeN
m+fwhTAOqctP5zNVkFqxlBytJZg3pqCKqRoOOl1qVgL3F3o7JdhZGi67aw8QMLPx
tLPpYWnnrlUQoXRJdTlqkDqO8lOZl9HO5oZeidPZ7r5BVD6ZiujAC6Zg0jIc+EPt
qhaUJ1CStoAeRf1rNWKmDsLv5hEaDWoaHF9sNVzDQg6atZ3ici00qQj+uvEZo8mL
k6egg3rqsTv9ml2qlrRgFumt99J60hTt3tuQaAruHY80O9nGy3SCXC11daa7gszH
ElCRvhUVoOxRtB54YBEtJ0gEpFnTO9J1AgMBAAGjcTBvMA4GA1UdDwEB/wQEAwID
uDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwHQYDVR0OBBYEFAgDXwPV
nhztNz+H20iNWgoIx8adMB8GA1UdIwQYMBaAFO1yCNAGr/zQTJIi8lw3w5OiuBvM
MA0GCSqGSIb3DQEBCwUAA4ICAQCR5kgIb4vAtrtsXD24n6RtU1yIXHPLNmDStVrH
uaMYNnHlLhRlQFCjHhjWvZ89FQC7FeNOITc3FpibJySyw7JfnsyEOGxEbcAS4uLB
2pdAiJPqdQtxIVcyi5vu53m1T5tm0sy8sBrGxU466aDQ8VGqjcjfTwNIyoFMd3p/
ezFRvg2BudwU9hqApgfHfLi4WCuI3hLO2tbmgDinyH0HI0YYNNweGpiBYbTLF4Tx
H6vHgD9USMZeu4+HX0IIsBiHQD7TTIe5ceREkPcNPd5qTpIvT3zKQ/KwwT90/zjP
aWmz6pLxBfjRu7MY/bDfxfRUqsrLYJCVBoaDVRWR9rhiPIFkC5JzoWD/4hdj2iis
N0+OOaJ77L+/ArFprE+7Fu3cSdYlfiNjV8R5kE29cAxKLI92CjAiTKrEuxKcQPKO
+taWNKIYYjEDZwVnzlkTIl007X0RBuzu9gh4w5NwJdt8ZOJAp0JV0Cq+UvG+FC/v
lYk82E6j1HKhf4CXmrjsrD1Fyu41mpVFOpa2ATiFGvms913MkXuyO8g99IllmDw1
D7/PN4Qe9N6Zm7yoKZM0IUw2v+SUMIdOAZ7dptO9ZjtYOfiAIYN3jM8R4JYgPiuD
DGSM9LJBJxCxI/DiO1y1Z3n9TcdDQYut8Gqdi/aYXw2YeqyHXosX5Od3vcK/O5zC
pOJTYQ==
-----END CERTIFICATE-----`
	serverKey = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`
	caCRT = `-----BEGIN CERTIFICATE-----
MIIE5jCCAs6gAwIBAgIBATANBgkqhkiG9w0BAQsFADATMREwDwYDVQQDEwhDZXJ0
QXV0aDAeFw0yMTAxMDIyMTIwNTVaFw0yMjA3MDIyMTMwNTJaMBMxETAPBgNVBAMT
CENlcnRBdXRoMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA4Tiho5xW
AC15JRkMwfp3/TJwI2As7MY5dele5cmdr5bHAE+sRKqC+Ti88OJWCV5saoyax/1S
CjxJlQMZMl169P1QYJskKjdG2sdv6RLWLMgwSNRRjxp/Bw9dHdiEb9MjLgu28Jro
9peQkHcRHeMf5hM9WvlIJGrdzbC4hUehmqggcqgARainBkYjf0SwuWxHeu4nMqkp
Ak5tcSTLCjHfEFHZ9Te0TIPG5YkWocQKyeLgu4lvuU+DD2W2lym+YVUtRMGs1Env
k7p+N0DcGU26qfzZ2sF5ZXkqm7dBsGQB9pIxwc2Q8T1dCIyP9OQCKVILdc5aVFf1
cryQFHYzYNNZXFlIBims5VV5Mgfp8ESHQSue+v6n6ykecLEyKt1F1Y/MWY/nWUSI
8zdq83jdBAZVjo9MSthxVn57/06s/hQca65IpcTZV2gX0a+eRlAVqaRbAhL3LaZe
bYsW3WHKoUOftwemuep3nL51TzlXZVL7Oz/ClGaEOsnGG9KFO6jh+W768qC0zLQI
CdE7v2Zex98sZteHCg9fGJHIaYoF0aJG5P3WI5oZf2fy7UIYN9ADLFZiorCXAZEh
CSU6mDoRViZ4RGR9GZxbDZ9KYn7O8M/KCR72bkQg73TlMsk1zSXEw0MKLUjtsw6c
rZ0Jt8t3sRatHO3JrYHALMt9vZfyNCZp0IsCAwEAAaNFMEMwDgYDVR0PAQH/BAQD
AgEGMBIGA1UdEwEB/wQIMAYBAf8CAQAwHQYDVR0OBBYEFO1yCNAGr/zQTJIi8lw3
w5OiuBvMMA0GCSqGSIb3DQEBCwUAA4ICAQA6gCNuM7r8mnx674dm31GxBjQy5ZwB
7CxDzYEvL/oiZ3Tv3HlPfN2LAAsJUfGnghh9DOytenL2CTZWjl/emP5eijzmlP+9
zva5I6CIMCf/eDDVsRdO244t0o4uG7+At0IgSDM3bpVaVb4RHZNjEziYChsEYY8d
HK6iwuRSvFniV6yhR/Vj1Ymi9yZ5xclqseLXiQnUB0PkfIk23+7s42cXB16653fH
O/FsPyKBLiKJArizLYQc12aP3QOrYoYD9+fAzIIzew7A5C0aanZCGzkuFpO6TRlD
Tb7ry9Gf0DfPpCgxraH8tOcmnqp/ka3hjqo/SRnnTk0IFrmmLdarJvjD46rKwBo4
MjyAIR1mQ5j8GTlSFBmSgETOQ/EYvO3FPLmra1Fh7L+DvaVzTpqI9fG3TuyyY+Ri
Fby4ycTOGSZOe5Fh8lqkX5Y47mCUJ3zHzOA1vUJy2eTlMRGpu47Eb1++Vm6EzPUP
2EF5aD+zwcssh+atZvQbwxpgVqVcyLt91RSkKkmZQslh0rnlTb68yxvUnD3zw7So
o6TAf9UvwVMEvdLT9NnFd6hwi2jcNte/h538GJwXeBb8EkfpqLKpTKyicnOdkamZ
7E9zY8SHNRYMwB9coQ/W8NvufbCgkvOoLyMXk5edbXofXl3PhNGOlraWbghBnzf5
r3rwjFsQOoZotA==
-----END CERTIFICATE-----`
	caKey = `-----BEGIN RSA PRIVATE KEY-----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sB7DLeTplR7/4mp9da7EQw51ZXC1DlZOEZt++4/desXsqATNAbva1OuzrLG7mMKe
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TRI5EolV6FTqqIP6AS+BAeBq7G1ELgsTrWNHh11rW3+3kBMuOCn77PUQ8WHwcq/r
teZcZn4Ewcr6P7cBODgVvnBPhe/J8xHS0HFVCeS1CvaiNYgees5yA80Apo9IPjDJ
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P0mwskikc3VIyvEO+NyjgFxo72yLPkFSzemkidN8uKDyFqKtnlfGM7OuA2CY1WZa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-----END RSA PRIVATE KEY-----`
	caCRL = `-----BEGIN X509 CRL-----
MIICpzCBkAIBATANBgkqhkiG9w0BAQsFADATMREwDwYDVQQDEwhDZXJ0QXV0aBcN
MjEwMTAyMjEzNDA1WhcNMjMwMTAyMjEzNDA1WjAkMCICEQC+l04DbHWMyC3fG09k
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YcW5mQk9Anvb4WjQW1cHmtNapMTzoC9AiYt/OWPfy+P6JCgCr4Hy6LgQyIRL6bM9
VYTalolOm1qa4Y5cIeT7iHq/91mfaqo8/6MYRjLl8DOTROpmw8OS9bCXkzGKdCat
AbAzwkQUSauyoCQ10rpX+Y64w9ng3g4Dr20aCqPf5osaqplEJ2HTK8ljDTidlslv
9anQj8ax3Su89vI8+hK+YbfVQwrThabgdSjQsn+veyx8GlP8WwHLAQ379KjZjWg+
OlOSwBeU1vTdP0QcB8X5C2gVujAyuQekbaV86xzIBOj7vZdfHZ6ee30TZ2FKiMyg
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5QH9dSIsmZHlPq7GoSXmKpMdjUL8eaky/IMteioyXgsBiATzl5L2dsw6MTX3MDF0
QbDK+MzhmbKfDxs=
-----END X509 CRL-----`
	client1Crt = `-----BEGIN CERTIFICATE-----
MIIEITCCAgmgAwIBAgIRAIppZHoj1hM80D7WzTEKLuAwDQYJKoZIhvcNAQELBQAw
EzERMA8GA1UEAxMIQ2VydEF1dGgwHhcNMjEwMTAyMjEyMzEwWhcNMjIwNzAyMjEz
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PT8qMfCaTwKTtUkzXuTFvQ8bAo2My/mS8FOcpkt2oQWeOsADHAUX7fz5BCoa2DL3
k/7Mh4gVT+JYZEoTwCFuYHgMWFWe98naqHi9lB4yR981p1QgXgxO7qBeipagKY1F
LlH1iwXUqZ3MZnkNA+4e1Fglsw3sa/rC+L98HnznJ/YbTfQbCP6aQ1qcOymrjMud
7MrFwqZjtd/SK4Qx1VpK6jGEAtPgWBTUS3p9ayg6lqjMBjsmySWfvRsDQbq6P5Ct
O/e3EH8=
-----END CERTIFICATE-----`
	client1Key = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`
	// client 2 crt is revoked
	client2Crt = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
	client2Key = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`
)

func TestLoadCertificate(t *testing.T) {
	caCrtPath := filepath.Join(os.TempDir(), "testca.crt")
	caCrlPath := filepath.Join(os.TempDir(), "testcrl.crt")
	certPath := filepath.Join(os.TempDir(), "test.crt")
	keyPath := filepath.Join(os.TempDir(), "test.key")
	err := os.WriteFile(caCrtPath, []byte(caCRT), os.ModePerm)
	assert.NoError(t, err)
	err = os.WriteFile(caCrlPath, []byte(caCRL), os.ModePerm)
	assert.NoError(t, err)
	err = os.WriteFile(certPath, []byte(serverCert), os.ModePerm)
	assert.NoError(t, err)
	err = os.WriteFile(keyPath, []byte(serverKey), os.ModePerm)
	assert.NoError(t, err)
	keyPairs := []TLSKeyPair{
		{
			Cert: certPath,
			Key:  keyPath,
			ID:   DefaultTLSKeyPaidID,
		},
		{
			Cert: certPath,
			Key:  keyPath,
			ID:   DefaultTLSKeyPaidID,
		},
	}
	certManager, err := NewCertManager(keyPairs, configDir, logSenderTest)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "is duplicated")
	}
	assert.Nil(t, certManager)

	keyPairs = []TLSKeyPair{
		{
			Cert: certPath,
			Key:  keyPath,
			ID:   DefaultTLSKeyPaidID,
		},
	}

	certManager, err = NewCertManager(keyPairs, configDir, logSenderTest)
	assert.NoError(t, err)
	certFunc := certManager.GetCertificateFunc(DefaultTLSKeyPaidID)
	if assert.NotNil(t, certFunc) {
		hello := &tls.ClientHelloInfo{
			ServerName:   "localhost",
			CipherSuites: []uint16{tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305},
		}
		cert, err := certFunc(hello)
		assert.NoError(t, err)
		assert.Equal(t, certManager.certs[DefaultTLSKeyPaidID], cert)
	}
	certFunc = certManager.GetCertificateFunc("unknownID")
	if assert.NotNil(t, certFunc) {
		hello := &tls.ClientHelloInfo{
			ServerName:   "localhost",
			CipherSuites: []uint16{tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305},
		}
		_, err = certFunc(hello)
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), "no certificate for id unknownID")
		}
	}
	certManager.SetCACertificates(nil)
	err = certManager.LoadRootCAs()
	assert.NoError(t, err)

	certManager.SetCACertificates([]string{""})
	err = certManager.LoadRootCAs()
	assert.Error(t, err)

	certManager.SetCACertificates([]string{"invalid"})
	err = certManager.LoadRootCAs()
	assert.Error(t, err)

	// laoding the key as root CA must fail
	certManager.SetCACertificates([]string{keyPath})
	err = certManager.LoadRootCAs()
	assert.Error(t, err)

	certManager.SetCACertificates([]string{certPath})
	err = certManager.LoadRootCAs()
	assert.NoError(t, err)

	rootCa := certManager.GetRootCAs()
	assert.NotNil(t, rootCa)

	err = certManager.Reload()
	assert.NoError(t, err)

	certManager.SetCARevocationLists(nil)
	err = certManager.LoadCRLs()
	assert.NoError(t, err)

	certManager.SetCARevocationLists([]string{""})
	err = certManager.LoadCRLs()
	assert.Error(t, err)

	certManager.SetCARevocationLists([]string{"invalid crl"})
	err = certManager.LoadCRLs()
	assert.Error(t, err)

	// this is not a crl and must fail
	certManager.SetCARevocationLists([]string{caCrtPath})
	err = certManager.LoadCRLs()
	assert.Error(t, err)

	certManager.SetCARevocationLists([]string{caCrlPath})
	err = certManager.LoadCRLs()
	assert.NoError(t, err)

	crt, err := tls.X509KeyPair([]byte(caCRT), []byte(caKey))
	assert.NoError(t, err)

	x509CAcrt, err := x509.ParseCertificate(crt.Certificate[0])
	assert.NoError(t, err)

	crt, err = tls.X509KeyPair([]byte(client1Crt), []byte(client1Key))
	assert.NoError(t, err)
	x509crt, err := x509.ParseCertificate(crt.Certificate[0])
	if assert.NoError(t, err) {
		assert.False(t, certManager.IsRevoked(x509crt, x509CAcrt))
	}

	crt, err = tls.X509KeyPair([]byte(client2Crt), []byte(client2Key))
	assert.NoError(t, err)
	x509crt, err = x509.ParseCertificate(crt.Certificate[0])
	if assert.NoError(t, err) {
		assert.True(t, certManager.IsRevoked(x509crt, x509CAcrt))
	}

	assert.True(t, certManager.IsRevoked(nil, nil))

	err = os.Remove(caCrlPath)
	assert.NoError(t, err)
	err = certManager.Reload()
	assert.Error(t, err)

	err = os.Remove(certPath)
	assert.NoError(t, err)
	err = os.Remove(keyPath)
	assert.NoError(t, err)
	err = certManager.Reload()
	assert.Error(t, err)

	err = os.Remove(caCrtPath)
	assert.NoError(t, err)
}

func TestLoadInvalidCert(t *testing.T) {
	certManager, err := NewCertManager(nil, configDir, logSenderTest)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "no key pairs defined")
	}
	assert.Nil(t, certManager)

	keyPairs := []TLSKeyPair{
		{
			Cert: "test.crt",
			Key:  "test.key",
			ID:   DefaultTLSKeyPaidID,
		},
	}
	certManager, err = NewCertManager(keyPairs, configDir, logSenderTest)
	assert.Error(t, err)
	assert.Nil(t, certManager)

	keyPairs = []TLSKeyPair{
		{
			Cert: "test.crt",
			Key:  "test.key",
		},
	}
	certManager, err = NewCertManager(keyPairs, configDir, logSenderTest)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "TLS certificate without ID")
	}
	assert.Nil(t, certManager)
}