feat: add a custom domain picker for auth0 test login

internal/auth/auth.go

@@ -32,7 +32,7 @@ var requiredScopes = []string{
 	"create:rules", "delete:rules", "read:rules", "update:rules",
 	"read:users", "update:users",
 	"read:branding", "update:branding",
-	"read:client_keys", "read:logs", "read:tenant_settings",
+	"read:client_keys", "read:logs", "read:tenant_settings", "read:custom_domains",
 }
 
 // RequiredScopes returns the scopes used for login.

internal/auth0/auth0.go

@@ -14,6 +14,7 @@ type API struct {
 	ActionBinding   ActionBindingAPI
 	Branding        BrandingAPI
 	Client          ClientAPI
+	CustomDomain    CustomDomainAPI
 	Log             LogAPI
 	ResourceServer  ResourceServerAPI
 	Rule            RuleAPI
@@ -29,6 +30,7 @@ func NewAPI(m *management.Management) *API {
 		ActionBinding:   m.ActionBinding,
 		Branding:        m.Branding,
 		Client:          m.Client,
+		CustomDomain:    m.CustomDomain,
 		Log:             m.Log,
 		ResourceServer:  m.ResourceServer,
 		Rule:            m.Rule,

internal/auth0/custom_domain.go

@@ -0,0 +1,8 @@
+//go:generate mockgen -source=custom_domain.go -destination=custom_domain_mock.go -package=auth0
+package auth0
+
+import "gopkg.in/auth0.v5/management"
+
+type CustomDomainAPI interface {
+	List(opts ...management.RequestOption) (c []*management.CustomDomain, err error)
+}

internal/cli/template.go

@@ -2,6 +2,7 @@ package cli
 
 import (
 	"context"
+	"errors"
 	"fmt"
 
 	"github.com/auth0/auth0-cli/internal/ansi"
@@ -27,6 +28,8 @@ var (
 		{"Login box + image", branding.ImageTemplate},
 		{"Page footers", branding.FooterTemplate},
 	}
+
+	errNotAllowed = errors.New("This feature requires at least one custom domain to be configured for the tenant.")
 )
 
 func brandingCmd(cli *cli) *cobra.Command {
@@ -178,6 +181,28 @@ func (cli *cli) obtainCustomTemplateData(ctx context.Context) (*branding.Templat
 		tenant       *management.Tenant
 	)
 
+	g.Go(func() error {
+		var err error
+		domains, err := cli.api.CustomDomain.List()
+		if err != nil {
+			errStatus := err.(management.Error)
+			// 403 is a valid response for free tenants that don't have
+			// custom domains enabled
+			if errStatus != nil && errStatus.Status() == 403 {
+				return errNotAllowed
+			}
+
+			return err
+		}
+
+		for _, domain := range domains {
+			if domain.GetStatus() == "ready" {
+				return nil
+			}
+		}
+		return errNotAllowed
+	})
+
 	g.Go(func() error {
 		var err error
 		clients, err = cli.api.Client.List(management.Context(ctx), management.ExcludeFields(clientExcludedList...))

internal/cli/test.go

@@ -1,6 +1,7 @@
 package cli
 
 import (
+	"errors"
 	"fmt"
 
 	"github.com/auth0/auth0-cli/internal/ansi"
@@ -50,6 +51,20 @@ var (
 		ShortForm: "s",
 		Help:      "The list of scope you want to use to generate the token.",
 	}
+
+	testDomainArg = Argument{
+		Name: "Custom Domain",
+		Help: "One of your custom domains.",
+	}
+
+	testDomain = Flag{
+		Name:      "Custom Domain",
+		LongForm:  "domain",
+		ShortForm: "d",
+		Help:      "One of your custom domains.",
+	}
+
+	errNoCustomDomains = errors.New("there are currently no custom domains")
 )
 
 func testCmd(cli *cli) *cobra.Command {
@@ -71,6 +86,7 @@ func testLoginCmd(cli *cli) *cobra.Command {
 		ClientID       string
 		Audience       string
 		ConnectionName string
+		CustomDomain   string
 	}
 
 	cmd := &cobra.Command{
@@ -123,6 +139,13 @@ auth0 test login <client-id> --connection <connection>`,
 				return fmt.Errorf("Unable to find client %s; if you specified a client, please verify it exists, otherwise re-run the command", inputs.ClientID)
 			}
 
+			if inputs.CustomDomain == "" {
+				err = testDomainArg.Pick(cmd, &inputs.CustomDomain, cli.customDomainPickerOptions)
+				if err != nil && err != errNoCustomDomains {
+					return err
+				}
+			}
+
 			if proceed := runLoginFlowPreflightChecks(cli, client); !proceed {
 				return nil
 			}
@@ -135,6 +158,7 @@ auth0 test login <client-id> --connection <connection>`,
 				inputs.Audience, // audience is only supported for the test token command
 				"login",         // force a login page when using the test login command
 				cliLoginTestingScopes,
+				inputs.CustomDomain,
 			)
 			if err != nil {
 				return fmt.Errorf("An unexpected error occurred while logging in to client %s: %w", inputs.ClientID, err)
@@ -172,6 +196,7 @@ auth0 test login <client-id> --connection <connection>`,
 	cmd.SetUsageTemplate(resourceUsageTemplate())
 	testAudience.RegisterString(cmd, &inputs.Audience, "")
 	testConnection.RegisterString(cmd, &inputs.ConnectionName, "")
+	testDomain.RegisterString(cmd, &inputs.CustomDomain, "")
 	return cmd
 }
 
@@ -246,6 +271,7 @@ auth0 test token --client-id <id> --audience <audience> --scopes <scope1,scope2>
 				inputs.Audience,
 				"", // We don't want to force a prompt for the test token command
 				inputs.Scopes,
+				"",
 			)
 			if err != nil {
 				return fmt.Errorf("An unexpected error occurred when logging in to client %s: %w", inputs.ClientID, err)
@@ -274,3 +300,40 @@ func cleanupTempApplication(isTemp bool, cli *cli, id string) {
 		cli.renderer.Infof("Default test application removed")
 	}
 }
+
+func (c *cli) customDomainPickerOptions() (pickerOptions, error) {
+	var opts pickerOptions
+
+	domains, err := c.api.CustomDomain.List()
+	if err != nil {
+		errStatus := err.(management.Error)
+		// 403 is a valid response for free tenants that don't have
+		// custom domains enabled
+		if errStatus != nil && errStatus.Status() == 403 {
+			return nil, errNoCustomDomains
+		}
+
+		return nil, err
+	}
+
+	tenant, err := c.getTenant()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, d := range domains {
+		if d.GetStatus() != "ready" {
+			continue
+		}
+
+		opts = append(opts, pickerOption{value: d.GetDomain(), label: d.GetDomain()})
+	}
+
+	if len(opts) == 0 {
+		return nil, errNoCustomDomains
+	}
+
+	opts = append(opts, pickerOption{value: "", label: fmt.Sprintf("none (use %s)", tenant.Domain)})
+
+	return opts, nil
+}

internal/cli/utils_shared.go

@@ -108,7 +108,7 @@ func runLoginFlowPreflightChecks(cli *cli, c *management.Client) (abort bool) {
 
 // runLoginFlow initiates a full user-facing login flow, waits for a response
 // and returns the retrieved tokens to the caller when done.
-func runLoginFlow(cli *cli, t tenant, c *management.Client, connName, audience, prompt string, scopes []string) (*authutil.TokenResponse, error) {
+func runLoginFlow(cli *cli, t tenant, c *management.Client, connName, audience, prompt string, scopes []string, customDomain string) (*authutil.TokenResponse, error) {
 	var tokenResponse *authutil.TokenResponse
 
 	err := ansi.Spinner("Waiting for login flow to complete", func() error {
@@ -122,8 +122,13 @@ func runLoginFlow(cli *cli, t tenant, c *management.Client, connName, audience,
 			return err
 		}
 
+		domain := t.Domain
+		if customDomain != "" {
+			domain = customDomain
+		}
+
 		// Build a login URL and initiate login in a browser window.
-		loginURL, err := authutil.BuildLoginURL(t.Domain, c.GetClientID(), cliLoginTestingCallbackURL, state, connName, audience, prompt, scopes)
+		loginURL, err := authutil.BuildLoginURL(domain, c.GetClientID(), cliLoginTestingCallbackURL, state, connName, audience, prompt, scopes)
 		if err != nil {
 			return err
 		}