-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
1 changed file
with
267 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,267 @@ | ||
| package config | ||
|
|
||
| import ( | ||
| "crypto" | ||
| "crypto/ecdsa" | ||
| "crypto/elliptic" | ||
| "crypto/rand" | ||
| "crypto/x509" | ||
| "crypto/x509/pkix" | ||
| "encoding/pem" | ||
| "github.com/pkg/errors" | ||
| "github.com/stretchr/testify/require" | ||
| "math/big" | ||
| "os" | ||
| "testing" | ||
| "time" | ||
| ) | ||
|
|
||
| func TestTLS_MakeConfig(t *testing.T) { | ||
| t.Run("TLS disabled", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: false} | ||
| config, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.NoError(t, err) | ||
| require.Nil(t, config) | ||
| }) | ||
|
|
||
| t.Run("Server name", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true} | ||
| config, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.NoError(t, err) | ||
| require.NotNil(t, config) | ||
| require.Equal(t, "icinga.com", config.ServerName) | ||
| }) | ||
|
|
||
| t.Run("Empty server name", func(t *testing.T) { | ||
| t.Skip("TODO: Either ServerName or InsecureSkipVerify must be specified in the tls.Config and" + | ||
| " should be verified in MakeConfig.") | ||
| }) | ||
|
|
||
| t.Run("Insecure skip verify", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Insecure: true} | ||
| config, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.NoError(t, err) | ||
| require.NotNil(t, config) | ||
| require.True(t, config.InsecureSkipVerify) | ||
| }) | ||
|
|
||
| t.Run("Missing client certificate", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Key: "test.key"} | ||
| _, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Missing private key", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Cert: "test.crt"} | ||
| _, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("x509", func(t *testing.T) { | ||
| cert, key, err := generateCert("cert", generateCertOptions{}) | ||
| require.NoError(t, err) | ||
| certFile, err := os.CreateTemp("", "cert-*.pem") | ||
| require.NoError(t, err) | ||
| defer func(name string) { | ||
| _ = os.Remove(name) | ||
| }(certFile.Name()) | ||
| err = pem.Encode(certFile, &pem.Block{Type: "CERTIFICATE", Bytes: cert.Raw}) | ||
| require.NoError(t, err) | ||
|
|
||
| keyFile, err := os.CreateTemp("", "key-*.pem") | ||
| require.NoError(t, err) | ||
| defer func(name string) { | ||
| _ = os.Remove(name) | ||
| }(keyFile.Name()) | ||
| keyBytes, err := x509.MarshalPKCS8PrivateKey(key) | ||
| require.NoError(t, err) | ||
| err = pem.Encode(keyFile, &pem.Block{Type: "PRIVATE KEY", Bytes: keyBytes}) | ||
| require.NoError(t, err) | ||
|
|
||
| ca, _, err := generateCert("ca", generateCertOptions{ca: true}) | ||
| require.NoError(t, err) | ||
| caFile, err := os.CreateTemp("", "ca-*.pem") | ||
| require.NoError(t, err) | ||
| defer func(name string) { | ||
| _ = os.Remove(name) | ||
| }(caFile.Name()) | ||
| err = pem.Encode(caFile, &pem.Block{Type: "CERTIFICATE", Bytes: ca.Raw}) | ||
| require.NoError(t, err) | ||
|
|
||
| corruptFile, err := os.CreateTemp("", "corrupt-*.pem") | ||
| require.NoError(t, err) | ||
| defer func(name string) { | ||
| _ = os.Remove(name) | ||
| }(corruptFile.Name()) | ||
| err = os.WriteFile(corruptFile.Name(), []byte("corrupt PEM"), 0600) | ||
| require.NoError(t, err) | ||
|
|
||
| t.Run("Valid certificate and key", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Cert: certFile.Name(), Key: keyFile.Name()} | ||
| config, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.NoError(t, err) | ||
| require.NotNil(t, config) | ||
| require.Len(t, config.Certificates, 1) | ||
| }) | ||
|
|
||
| t.Run("Mismatched certificate and key", func(t *testing.T) { | ||
| _key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) | ||
| require.NoError(t, err) | ||
| _keyFile, err := os.CreateTemp("", "key-*.pem") | ||
| require.NoError(t, err) | ||
| defer func(name string) { | ||
| _ = os.Remove(name) | ||
| }(_keyFile.Name()) | ||
| _keyBytes, err := x509.MarshalPKCS8PrivateKey(_key) | ||
| require.NoError(t, err) | ||
| err = pem.Encode(_keyFile, &pem.Block{Type: "PRIVATE KEY", Bytes: _keyBytes}) | ||
| require.NoError(t, err) | ||
|
|
||
| tlsConfig := &TLS{Enable: true, Cert: certFile.Name(), Key: _keyFile.Name()} | ||
| _, err = tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Invalid certificate path", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Cert: "nonexistent.crt", Key: keyFile.Name()} | ||
| _, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Invalid certificate permissions", func(t *testing.T) { | ||
| fileInfo, err := certFile.Stat() | ||
| require.NoError(t, err) | ||
| defer func() { | ||
| err := certFile.Chmod(fileInfo.Mode()) | ||
| require.NoError(t, err) | ||
| }() | ||
| err = certFile.Chmod(0000) | ||
| require.NoError(t, err) | ||
|
|
||
| tlsConfig := &TLS{Enable: true, Cert: certFile.Name(), Key: keyFile.Name()} | ||
| _, err = tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Corrupt certificate", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Cert: corruptFile.Name(), Key: keyFile.Name()} | ||
| _, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Invalid key path", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Cert: certFile.Name(), Key: "nonexistent.key"} | ||
| _, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Invalid key permissions", func(t *testing.T) { | ||
| fileInfo, err := keyFile.Stat() | ||
| require.NoError(t, err) | ||
| defer func() { | ||
| err := keyFile.Chmod(fileInfo.Mode()) | ||
| require.NoError(t, err) | ||
| }() | ||
| err = keyFile.Chmod(0000) | ||
| require.NoError(t, err) | ||
|
|
||
| tlsConfig := &TLS{Enable: true, Cert: certFile.Name(), Key: keyFile.Name()} | ||
| _, err = tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Corrupt key", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Cert: certFile.Name(), Key: corruptFile.Name()} | ||
| _, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Valid CA", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Ca: caFile.Name()} | ||
| config, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.NoError(t, err) | ||
| require.NotNil(t, config) | ||
| require.NotNil(t, config.RootCAs) | ||
| }) | ||
|
|
||
| t.Run("Invalid CA path", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Ca: "nonexistent.ca"} | ||
| _, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Invalid CA permissions", func(t *testing.T) { | ||
| fileInfo, err := caFile.Stat() | ||
| require.NoError(t, err) | ||
| defer func() { | ||
| err := caFile.Chmod(fileInfo.Mode()) | ||
| require.NoError(t, err) | ||
| }() | ||
| err = caFile.Chmod(0000) | ||
| require.NoError(t, err) | ||
|
|
||
| tlsConfig := &TLS{Enable: true, Ca: caFile.Name()} | ||
| _, err = tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
|
|
||
| t.Run("Corrupt CA", func(t *testing.T) { | ||
| tlsConfig := &TLS{Enable: true, Ca: corruptFile.Name()} | ||
| _, err := tlsConfig.MakeConfig("icinga.com") | ||
| require.Error(t, err) | ||
| }) | ||
| }) | ||
| } | ||
|
|
||
| type generateCertOptions struct { | ||
| ca bool | ||
| issuer *x509.Certificate | ||
| issuerKey crypto.PrivateKey | ||
| } | ||
|
|
||
| func generateCert(cn string, options generateCertOptions) (*x509.Certificate, crypto.PrivateKey, error) { | ||
| privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| serialNumber, err := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128)) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| template := &x509.Certificate{ | ||
| SerialNumber: serialNumber, | ||
| Subject: pkix.Name{CommonName: cn}, | ||
| NotBefore: time.Now().Add(-1 * time.Hour), | ||
| NotAfter: time.Now().Add(24 * time.Hour), | ||
| KeyUsage: x509.KeyUsageCertSign, | ||
| BasicConstraintsValid: true, | ||
| IsCA: options.ca, | ||
| } | ||
|
|
||
| var issuer *x509.Certificate | ||
| var issuerKey crypto.PrivateKey | ||
| if options.issuer != nil { | ||
| if options.issuerKey == nil { | ||
| return nil, nil, errors.New("issuerKey required if issuer set") | ||
| } | ||
| issuer = options.issuer | ||
| issuerKey = options.issuerKey | ||
| } else { | ||
| issuer = template | ||
| issuerKey = privateKey | ||
| } | ||
|
|
||
| der, err := x509.CreateCertificate(rand.Reader, template, issuer, privateKey.Public(), issuerKey) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| cert, err := x509.ParseCertificate(der) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| return cert, privateKey, nil | ||
| } |