func newAuthenticator(config configapi.MasterConfig, restOptionsGetter restoptions.Getter, tokenGetter serviceaccount.ServiceAccountTokenGetter, apiClientCAs *x509.CertPool, groupMapper identitymapper.UserToGroupMapper) (authenticator.Request, error) {
authenticators := []authenticator.Request{}
// ServiceAccount token
if len(config.ServiceAccountConfig.PublicKeyFiles) > 0 {
publicKeys := []*rsa.PublicKey{}
for _, keyFile := range config.ServiceAccountConfig.PublicKeyFiles {
publicKey, err := serviceaccount.ReadPublicKey(keyFile)
if err != nil {
return nil, fmt.Errorf("Error reading service account key file %s: %v", keyFile, err)
}
publicKeys = append(publicKeys, publicKey)
}
tokenAuthenticator := serviceaccount.JWTTokenAuthenticator(publicKeys, true, tokenGetter)
authenticators = append(authenticators, bearertoken.New(tokenAuthenticator, true))
}
// OAuth token
if config.OAuthConfig != nil {
tokenAuthenticator, err := getEtcdTokenAuthenticator(restOptionsGetter, groupMapper)
if err != nil {
return nil, fmt.Errorf("Error building OAuth token authenticator: %v", err)
}
tokenRequestAuthenticators := []authenticator.Request{
bearertoken.New(tokenAuthenticator, true),
// Allow token as access_token param for WebSockets
paramtoken.New("access_token", tokenAuthenticator, true),
}
authenticators = append(authenticators,
// if you have a bearer token, you're a human (usually)
// if you change this, have a look at the impersonationFilter where we attach groups to the impersonated user
group.NewGroupAdder(unionrequest.NewUnionAuthentication(tokenRequestAuthenticators...), []string{bootstrappolicy.AuthenticatedOAuthGroup}))
}
if configapi.UseTLS(config.ServingInfo.ServingInfo) {
// build cert authenticator
// TODO: add "system:" prefix in authenticator, limit cert to username
// TODO: add "system:" prefix to groups in authenticator, limit cert to group name
opts := x509request.DefaultVerifyOptions()
opts.Roots = apiClientCAs
certauth := x509request.New(opts, x509request.SubjectToUserConversion)
authenticators = append(authenticators, certauth)
}
ret := &unionrequest.Authenticator{
FailOnError: true,
Handlers: []authenticator.Request{
// if you change this, have a look at the impersonationFilter where we attach groups to the impersonated user
group.NewGroupAdder(unionrequest.NewUnionAuthentication(authenticators...), []string{bootstrappolicy.AuthenticatedGroup}),
anonymous.NewAuthenticator(),
},
}
return ret, nil
}
func (c *AuthConfig) getAuthenticationRequestHandler() (authenticator.Request, error) {
var authRequestHandlers []authenticator.Request
if c.SessionAuth != nil {
authRequestHandlers = append(authRequestHandlers, c.SessionAuth)
}
for _, identityProvider := range c.Options.IdentityProviders {
identityMapper, err := identitymapper.NewIdentityUserMapper(c.IdentityRegistry, c.UserRegistry, identitymapper.MappingMethodType(identityProvider.MappingMethod))
if err != nil {
return nil, err
}
if configapi.IsPasswordAuthenticator(identityProvider) {
passwordAuthenticator, err := c.getPasswordAuthenticator(identityProvider)
if err != nil {
return nil, err
}
authRequestHandlers = append(authRequestHandlers, basicauthrequest.NewBasicAuthAuthentication(identityProvider.Name, passwordAuthenticator, true))
} else {
switch provider := identityProvider.Provider.(type) {
case (*configapi.RequestHeaderIdentityProvider):
var authRequestHandler authenticator.Request
authRequestConfig := &headerrequest.Config{
IDHeaders: provider.Headers,
NameHeaders: provider.NameHeaders,
EmailHeaders: provider.EmailHeaders,
PreferredUsernameHeaders: provider.PreferredUsernameHeaders,
}
authRequestHandler = headerrequest.NewAuthenticator(identityProvider.Name, authRequestConfig, identityMapper)
// Wrap with an x509 verifier
if len(provider.ClientCA) > 0 {
caData, err := ioutil.ReadFile(provider.ClientCA)
if err != nil {
return nil, fmt.Errorf("Error reading %s: %v", provider.ClientCA, err)
}
opts := x509request.DefaultVerifyOptions()
opts.Roots = x509.NewCertPool()
if ok := opts.Roots.AppendCertsFromPEM(caData); !ok {
return nil, fmt.Errorf("Error loading certs from %s: %v", provider.ClientCA, err)
}
authRequestHandler = x509request.NewVerifier(opts, authRequestHandler, sets.NewString(provider.ClientCommonNames...))
}
authRequestHandlers = append(authRequestHandlers, authRequestHandler)
}
}
}
authRequestHandler := unionrequest.NewUnionAuthentication(authRequestHandlers...)
return authRequestHandler, nil
}
func newAuthenticator(config configapi.MasterConfig, etcdHelper storage.Interface, tokenGetter serviceaccount.ServiceAccountTokenGetter, apiClientCAs *x509.CertPool, groupMapper identitymapper.UserToGroupMapper) authenticator.Request {
authenticators := []authenticator.Request{}
// ServiceAccount token
if len(config.ServiceAccountConfig.PublicKeyFiles) > 0 {
publicKeys := []*rsa.PublicKey{}
for _, keyFile := range config.ServiceAccountConfig.PublicKeyFiles {
publicKey, err := serviceaccount.ReadPublicKey(keyFile)
if err != nil {
glog.Fatalf("Error reading service account key file %s: %v", keyFile, err)
}
publicKeys = append(publicKeys, publicKey)
}
tokenAuthenticator := serviceaccount.JWTTokenAuthenticator(publicKeys, true, tokenGetter)
authenticators = append(authenticators, bearertoken.New(tokenAuthenticator, true))
}
// OAuth token
if config.OAuthConfig != nil {
tokenAuthenticator := getEtcdTokenAuthenticator(etcdHelper, groupMapper)
authenticators = append(authenticators, bearertoken.New(tokenAuthenticator, true))
// Allow token as access_token param for WebSockets
authenticators = append(authenticators, paramtoken.New("access_token", tokenAuthenticator, true))
}
if configapi.UseTLS(config.ServingInfo.ServingInfo) {
// build cert authenticator
// TODO: add "system:" prefix in authenticator, limit cert to username
// TODO: add "system:" prefix to groups in authenticator, limit cert to group name
opts := x509request.DefaultVerifyOptions()
opts.Roots = apiClientCAs
certauth := x509request.New(opts, x509request.SubjectToUserConversion)
authenticators = append(authenticators, certauth)
}
// TODO: make anonymous auth optional?
ret := &unionrequest.Authenticator{
FailOnError: true,
Handlers: []authenticator.Request{
group.NewGroupAdder(unionrequest.NewUnionAuthentication(authenticators...), []string{bootstrappolicy.AuthenticatedGroup}),
authenticator.RequestFunc(func(req *http.Request) (user.Info, bool, error) {
return &user.DefaultInfo{Name: unauthenticatedUsername, Groups: []string{bootstrappolicy.UnauthenticatedGroup}}, true, nil
}),
},
}
return ret
}
func newAuthenticator(authenticationClient unversionedauthentication.TokenReviewsGetter, clientCAs *x509.CertPool, cacheTTL time.Duration, cacheSize int) (authenticator.Request, error) {
authenticators := []oauthenticator.Request{}
// API token auth
var (
tokenAuthenticator oauthenticator.Token
err error
)
// Authenticate against the remote master
tokenAuthenticator, err = authnremote.NewAuthenticator(authenticationClient)
if err != nil {
return nil, err
}
// Cache results
if cacheTTL > 0 && cacheSize > 0 {
tokenAuthenticator, err = authncache.NewAuthenticator(tokenAuthenticator, cacheTTL, cacheSize)
if err != nil {
return nil, err
}
}
authenticators = append(authenticators, bearertoken.New(tokenAuthenticator, true))
// Client-cert auth
if clientCAs != nil {
opts := x509request.DefaultVerifyOptions()
opts.Roots = clientCAs
certauth := x509request.New(opts, x509request.SubjectToUserConversion)
authenticators = append(authenticators, certauth)
}
ret := &unionrequest.Authenticator{
// Anonymous requests will pass the token and cert checks without errors
// Bad tokens or bad certs will produce errors, in which case we should not continue to authenticate them as "system:anonymous"
FailOnError: true,
Handlers: []oauthenticator.Request{
// Add the "system:authenticated" group to users that pass token/cert authentication
group.NewGroupAdder(unionrequest.NewUnionAuthentication(authenticators...), []string{bootstrappolicy.AuthenticatedGroup}),
// Fall back to the "system:anonymous" user
anonymous.NewAuthenticator(),
},
}
return ret, nil
}