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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| //go:build unit | ||
| // +build unit | ||
|
|
||
| package http | ||
|
|
||
| import ( | ||
| "crypto/ecdsa" | ||
| "crypto/elliptic" | ||
| "crypto/rand" | ||
| "crypto/tls" | ||
| "crypto/x509" | ||
| "crypto/x509/pkix" | ||
| "encoding/pem" | ||
| "io" | ||
| "log" | ||
| "math/big" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
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| func GenerateSelfSignedCertificate(usages []x509.ExtKeyUsage) (pemKey, pemCert []byte) { | ||
| privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) | ||
| if err != nil { | ||
| log.Fatalf("Failed to generate private key: %v", err) | ||
| } | ||
|
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| serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128) | ||
| serialNumber, err := rand.Int(rand.Reader, serialNumberLimit) | ||
| if err != nil { | ||
| log.Fatalf("Failed to generate serial number: %v", err) | ||
| } | ||
|
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| template := x509.Certificate{ | ||
| SerialNumber: serialNumber, | ||
| Subject: pkix.Name{ | ||
| Organization: []string{"My Corp"}, | ||
| }, | ||
| DNSNames: []string{"localhost"}, | ||
| NotBefore: time.Now(), | ||
| NotAfter: time.Now().Add(3 * time.Hour), | ||
|
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| KeyUsage: x509.KeyUsageDigitalSignature, | ||
| ExtKeyUsage: usages, | ||
| BasicConstraintsValid: true, | ||
| } | ||
|
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| derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &privateKey.PublicKey, privateKey) | ||
| if err != nil { | ||
| log.Fatalf("Failed to create certificate: %v", err) | ||
| } | ||
|
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| pemCert = pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: derBytes}) | ||
| if pemCert == nil { | ||
| log.Fatal("Failed to encode certificate to PEM") | ||
| } | ||
|
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| privBytes, err := x509.MarshalPKCS8PrivateKey(privateKey) | ||
| if err != nil { | ||
| log.Fatalf("Unable to marshal private key: %v", err) | ||
| } | ||
| pemKey = pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: privBytes}) | ||
| if pemKey == nil { | ||
| log.Fatal("Failed to encode key to PEM") | ||
| } | ||
|
|
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| return pemKey, pemCert | ||
| } | ||
|
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| func GenerateSelfSignedServerAuthCertificate() (pemKey, pemCert []byte) { | ||
| return GenerateSelfSignedCertificate([]x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth}) | ||
| } | ||
|
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| func GenerateSelfSignedClientAuthCertificate() (pemKey, pemCert []byte) { | ||
| return GenerateSelfSignedCertificate([]x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth}) | ||
| } | ||
|
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| func TestCertificateLogon(t *testing.T) { | ||
| testOkayString := "Okidoki" | ||
|
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| server := httptest.NewUnstartedServer(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) { | ||
| rw.Write([]byte(testOkayString)) | ||
| })) | ||
|
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| clientPemKey, clientPemCert := GenerateSelfSignedClientAuthCertificate() | ||
|
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| //server | ||
| clientCertPool := x509.NewCertPool() | ||
| clientCertPool.AppendCertsFromPEM(clientPemCert) | ||
|
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| tlsConfig := tls.Config{ | ||
| MinVersion: tls.VersionTLS13, | ||
| PreferServerCipherSuites: true, | ||
| ClientCAs: clientCertPool, | ||
| ClientAuth: tls.RequireAndVerifyClientCert, | ||
| } | ||
|
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| server.TLS = &tlsConfig | ||
| server.StartTLS() | ||
| defer server.Close() | ||
|
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| //client | ||
| tlsKeyPair, err := tls.X509KeyPair(clientPemCert, clientPemKey) | ||
| if err != nil { | ||
| log.Fatal("Failed to create clients tls key pair") | ||
| } | ||
|
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| t.Run("Success - Login with certificate", func(t *testing.T) { | ||
| c := Client{} | ||
| c.SetOptions(ClientOptions{ | ||
| TransportSkipVerification: true, | ||
| MaxRetries: 1, | ||
| Certificates: []tls.Certificate{tlsKeyPair}, | ||
| }) | ||
|
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| response, err := c.SendRequest("GET", server.URL, nil, nil, nil) | ||
| assert.NoError(t, err, "Error occurred but none expected") | ||
| content, err := io.ReadAll(response.Body) | ||
| assert.Equal(t, testOkayString, string(content), "Returned content incorrect") | ||
| response.Body.Close() | ||
| }) | ||
|
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||
| t.Run("Failure - Login without certificate", func(t *testing.T) { | ||
| c := Client{} | ||
| c.SetOptions(ClientOptions{ | ||
| TransportSkipVerification: true, | ||
| MaxRetries: 1, | ||
| }) | ||
|
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| _, err := c.SendRequest("GET", server.URL, nil, nil, nil) | ||
| assert.ErrorContains(t, err, "bad certificate") | ||
| }) | ||
|
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| t.Run("Failure - Login with wrong certificate", func(t *testing.T) { | ||
| otherClientPemKey, otherClientPemCert := GenerateSelfSignedClientAuthCertificate() | ||
|
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| otherTlsKeyPair, err := tls.X509KeyPair(otherClientPemCert, otherClientPemKey) | ||
| if err != nil { | ||
| log.Fatal("Failed to create clients tls key pair") | ||
| } | ||
|
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| c := Client{} | ||
| c.SetOptions(ClientOptions{ | ||
| TransportSkipVerification: true, | ||
| MaxRetries: 1, | ||
| Certificates: []tls.Certificate{otherTlsKeyPair}, | ||
| }) | ||
|
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| _, err = c.SendRequest("GET", server.URL, nil, nil, nil) | ||
| assert.ErrorContains(t, err, "bad certificate") | ||
| }) | ||
|
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| t.Run("SanityCheck", func(t *testing.T) { | ||
| client := &http.Client{ | ||
| Transport: &http.Transport{ | ||
| TLSClientConfig: &tls.Config{ | ||
| //RootCAs: certPool, | ||
| InsecureSkipVerify: true, | ||
| Certificates: []tls.Certificate{tlsKeyPair}, | ||
| }, | ||
| }, | ||
| } | ||
|
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| response, err := client.Get(server.URL) | ||
| assert.NoError(t, err, "Error occurred but none expected") | ||
| content, err := io.ReadAll(response.Body) | ||
| assert.Equal(t, testOkayString, string(content), "Returned content incorrect") | ||
| response.Body.Close() | ||
| }) | ||
| } |
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