server,cmd: Add flag for disabling registation

For situations where admins add users.

cmd/dex-worker/main.go

@@ -44,6 +44,8 @@ func main() {
 	emailFrom := fs.String("email-from", "no-reply@coreos.com", "emails sent from dex will come from this address")
 	emailConfig := fs.String("email-cfg", "./static/fixtures/emailer.json", "configures emailer.")
 
+	enableRegistration := fs.Bool("enable-registration", true, "Allows users to self-register")
+
 	noDB := fs.Bool("no-db", false, "manage entities in-process w/o any encryption, used only for single-node testing")
 
 	// UI-related:
@@ -113,13 +115,14 @@ func main() {
 	}
 
 	scfg := server.ServerConfig{
-		IssuerURL:         *issuer,
-		TemplateDir:       *templates,
-		EmailTemplateDirs: emailTemplateDirs,
-		EmailFromAddress:  *emailFrom,
-		EmailerConfigFile: *emailConfig,
-		IssuerName:        *issuerName,
-		IssuerLogoURL:     *issuerLogoURL,
+		IssuerURL:          *issuer,
+		TemplateDir:        *templates,
+		EmailTemplateDirs:  emailTemplateDirs,
+		EmailFromAddress:   *emailFrom,
+		EmailerConfigFile:  *emailConfig,
+		IssuerName:         *issuerName,
+		IssuerLogoURL:      *issuerLogoURL,
+		EnableRegistration: *enableRegistration,
 	}
 
 	if *noDB {

server/config.go

@@ -25,14 +25,15 @@ import (
 )
 
 type ServerConfig struct {
-	IssuerURL         string
-	IssuerName        string
-	IssuerLogoURL     string
-	TemplateDir       string
-	EmailTemplateDirs []string
-	EmailFromAddress  string
-	EmailerConfigFile string
-	StateConfig       StateConfigurer
+	IssuerURL          string
+	IssuerName         string
+	IssuerLogoURL      string
+	TemplateDir        string
+	EmailTemplateDirs  []string
+	EmailFromAddress   string
+	EmailerConfigFile  string
+	StateConfig        StateConfigurer
+	EnableRegistration bool
 }
 
 type StateConfigurer interface {
@@ -56,7 +57,7 @@ func (cfg *ServerConfig) Server() (*Server, error) {
 		return nil, err
 	}
 
-	tpl, err := getTemplates(cfg.IssuerName, cfg.IssuerLogoURL, cfg.TemplateDir)
+	tpl, err := getTemplates(cfg.IssuerName, cfg.IssuerLogoURL, cfg.EnableRegistration, cfg.TemplateDir)
 	if err != nil {
 		return nil, err
 	}
@@ -69,6 +70,8 @@ func (cfg *ServerConfig) Server() (*Server, error) {
 
 		HealthChecks: []health.Checkable{km},
 		Connectors:   []connector.Connector{},
+
+		EnableRegistration: cfg.EnableRegistration,
 	}
 
 	err = cfg.StateConfig.Configure(&srv)
@@ -183,7 +186,8 @@ func (cfg *MultiServerConfig) Configure(srv *Server) error {
 	return nil
 }
 
-func getTemplates(issuerName, issuerLogoURL string, dir string) (*template.Template, error) {
+func getTemplates(issuerName,
+	issuerLogoURL string, enableRegister bool, dir string) (*template.Template, error) {
 	tpl := template.New("").Funcs(map[string]interface{}{
 		"issuerName": func() string {
 			return issuerName
@@ -191,6 +195,9 @@ func getTemplates(issuerName, issuerLogoURL string, dir string) (*template.Templ
 		"issuerLogoURL": func() string {
 			return issuerLogoURL
 		},
+		"enableRegister": func() bool {
+			return enableRegister
+		},
 	})
 
 	return tpl.ParseGlob(dir + "/*.html")

server/http.go

@@ -254,7 +254,7 @@ func renderLoginPage(w http.ResponseWriter, r *http.Request, srv OIDCServer, idp
 	execTemplate(w, tpl, td)
 }
 
-func handleAuthFunc(srv OIDCServer, idpcs []connector.Connector, tpl *template.Template) http.HandlerFunc {
+func handleAuthFunc(srv OIDCServer, idpcs []connector.Connector, tpl *template.Template, registrationEnabled bool) http.HandlerFunc {
 	idx := makeConnectorMap(idpcs)
 	return func(w http.ResponseWriter, r *http.Request) {
 		if r.Method != "GET" {
@@ -264,7 +264,7 @@ func handleAuthFunc(srv OIDCServer, idpcs []connector.Connector, tpl *template.T
 		}
 
 		q := r.URL.Query()
-		register := q.Get("register") == "1"
+		register := q.Get("register") == "1" && registrationEnabled
 		e := q.Get("error")
 		if e != "" {
 			sessionKey := q.Get("state")

server/http_test.go

@@ -51,7 +51,7 @@ func (c *fakeConnector) TrustedEmailProvider() bool {
 
 func TestHandleAuthFuncMethodNotAllowed(t *testing.T) {
 	for _, m := range []string{"POST", "PUT", "DELETE"} {
-		hdlr := handleAuthFunc(nil, nil, nil)
+		hdlr := handleAuthFunc(nil, nil, nil, true)
 		req, err := http.NewRequest(m, "http://example.com", nil)
 		if err != nil {
 			t.Errorf("case %s: unable to create HTTP request: %v", m, err)
@@ -170,7 +170,7 @@ func TestHandleAuthFuncResponsesSingleRedirectURL(t *testing.T) {
 	}
 
 	for i, tt := range tests {
-		hdlr := handleAuthFunc(srv, idpcs, nil)
+		hdlr := handleAuthFunc(srv, idpcs, nil, true)
 		w := httptest.NewRecorder()
 		u := fmt.Sprintf("http://server.example.com?%s", tt.query.Encode())
 		req, err := http.NewRequest("GET", u, nil)
@@ -271,7 +271,7 @@ func TestHandleAuthFuncResponsesMultipleRedirectURLs(t *testing.T) {
 	}
 
 	for i, tt := range tests {
-		hdlr := handleAuthFunc(srv, idpcs, nil)
+		hdlr := handleAuthFunc(srv, idpcs, nil, true)
 		w := httptest.NewRecorder()
 		u := fmt.Sprintf("http://server.example.com?%s", tt.query.Encode())
 		req, err := http.NewRequest("GET", u, nil)

server/server.go

@@ -72,6 +72,7 @@ type Server struct {
 	PasswordInfoRepo               user.PasswordInfoRepo
 	RefreshTokenRepo               refresh.RefreshTokenRepo
 	UserEmailer                    *useremail.UserEmailer
+	EnableRegistration             bool
 
 	localConnectorID string
 }
@@ -198,11 +199,15 @@ func (s *Server) HTTPHandler() http.Handler {
 	clock := clockwork.NewRealClock()
 	mux := http.NewServeMux()
 	mux.HandleFunc(httpPathDiscovery, handleDiscoveryFunc(s.ProviderConfig()))
-	mux.HandleFunc(httpPathAuth, handleAuthFunc(s, s.Connectors, s.LoginTemplate))
+	mux.HandleFunc(httpPathAuth, handleAuthFunc(s, s.Connectors, s.LoginTemplate, s.EnableRegistration))
 	mux.HandleFunc(httpPathToken, handleTokenFunc(s))
 	mux.HandleFunc(httpPathKeys, handleKeysFunc(s.KeyManager, clock))
 	mux.Handle(httpPathHealth, makeHealthHandler(checks))
-	mux.HandleFunc(httpPathRegister, handleRegisterFunc(s))
+
+	if s.EnableRegistration {
+		mux.HandleFunc(httpPathRegister, handleRegisterFunc(s))
+	}
+
 	mux.HandleFunc(httpPathEmailVerify, handleEmailVerifyFunc(s.VerifyEmailTemplate,
 		s.IssuerURL, s.KeyManager.PublicKeys, s.UserManager))
 

server/testutil.go

@@ -126,7 +126,8 @@ func makeTestFixtures() (*testFixtures, error) {
 		return nil, err
 	}
 
-	tpl, err := getTemplates("dex", "https://coreos.com/assets/images/brand/coreos-mark-30px.png", templatesLocation)
+	tpl, err := getTemplates("dex", "https://coreos.com/assets/images/brand/coreos-mark-30px.png",
+		true, templatesLocation)
 	if err != nil {
 		return nil, err
 	}

static/html/login.html

@@ -68,9 +68,11 @@
 {{ if not .Error }}
   <div class="footer subtle-text">
     {{ if .Register }}
-      Already have an account? <a href="{{ .RegisterOrLoginURL }}">Log in</a>
+        Already have an account? <a href="{{ .RegisterOrLoginURL }}">Log in</a>
     {{ else }}
-      Don't have an account yet? <a href="{{ .RegisterOrLoginURL }}">Register</a>
+      {{ if enableRegister }}
+        Don't have an account yet? <a href="{{ .RegisterOrLoginURL }}">Register</a>
+      {{ end }}
     {{ end }}
   </div>
 {{ end }}