feat: add granular signin disable flags and OIDC auto-redirect (#2857)

apps/remix/app/components/forms/signin.tsx

@@ -58,6 +58,7 @@ export type TSignInFormSchema = z.infer<typeof ZSignInFormSchema>;
 export type SignInFormProps = {
   className?: string;
   initialEmail?: string;
+  isEmailPasswordSigninEnabled?: boolean;
   isGoogleSSOEnabled?: boolean;
   isMicrosoftSSOEnabled?: boolean;
   isOIDCSSOEnabled?: boolean;
@@ -68,6 +69,7 @@ export type SignInFormProps = {
 export const SignInForm = ({
   className,
   initialEmail,
+  isEmailPasswordSigninEnabled = true,
   isGoogleSSOEnabled,
   isMicrosoftSSOEnabled,
   isOIDCSSOEnabled,
@@ -324,66 +326,78 @@ export const SignInForm = ({
     <Form {...form}>
       <form className={cn('flex w-full flex-col gap-y-4', className)} onSubmit={form.handleSubmit(onFormSubmit)}>
         <fieldset className="flex w-full flex-col gap-y-4" disabled={isSubmitting || isPasskeyLoading}>
-          <FormField
-            control={form.control}
-            name="email"
-            render={({ field }) => (
-              <FormItem>
-                <FormLabel>
-                  <Trans>Email</Trans>
-                </FormLabel>
+          {isEmailPasswordSigninEnabled && (
+            <>
+              <FormField
+                control={form.control}
+                name="email"
+                render={({ field }) => (
+                  <FormItem>
+                    <FormLabel>
+                      <Trans>Email</Trans>
+                    </FormLabel>
 
-                <FormControl>
-                  <Input type="email" {...field} />
-                </FormControl>
+                    <FormControl>
+                      <Input type="email" {...field} />
+                    </FormControl>
 
-                <FormMessage />
-              </FormItem>
-            )}
-          />
+                    <FormMessage />
+                  </FormItem>
+                )}
+              />
 
-          <FormField
-            control={form.control}
-            name="password"
-            render={({ field }) => (
-              <FormItem>
-                <FormLabel>
-                  <Trans>Password</Trans>
-                </FormLabel>
+              <FormField
+                control={form.control}
+                name="password"
+                render={({ field }) => (
+                  <FormItem>
+                    <FormLabel>
+                      <Trans>Password</Trans>
+                    </FormLabel>
 
-                <FormControl>
-                  <PasswordInput {...field} />
-                </FormControl>
+                    <FormControl>
+                      <PasswordInput {...field} />
+                    </FormControl>
 
-                <FormMessage />
+                    <FormMessage />
 
-                <p className="mt-2 text-right">
-                  <Link to="/forgot-password" className="text-muted-foreground text-sm duration-200 hover:opacity-70">
-                    <Trans>Forgot your password?</Trans>
-                  </Link>
-                </p>
-              </FormItem>
-            )}
-          />
+                    <p className="mt-2 text-right">
+                      <Link
+                        to="/forgot-password"
+                        className="text-muted-foreground text-sm duration-200 hover:opacity-70"
+                      >
+                        <Trans>Forgot your password?</Trans>
+                      </Link>
+                    </p>
+                  </FormItem>
+                )}
+              />
 
-          {turnstileSiteKey && !isTwoFactorAuthenticationDialogOpen && (
-            <Turnstile
-              ref={turnstileRef}
-              siteKey={turnstileSiteKey}
-              options={{
-                size: 'flexible',
-                appearance: 'always',
-              }}
-            />
+              {turnstileSiteKey && !isTwoFactorAuthenticationDialogOpen && (
+                <Turnstile
+                  ref={turnstileRef}
+                  siteKey={turnstileSiteKey}
+                  options={{
+                    size: 'flexible',
+                    appearance: 'always',
+                  }}
+                />
+              )}
+
+              <Button
+                type="submit"
+                size="lg"
+                loading={isSubmitting}
+                className="dark:bg-documenso dark:hover:opacity-90"
+              >
+                {isSubmitting ? <Trans>Signing in...</Trans> : <Trans>Sign In</Trans>}
+              </Button>
+            </>
           )}
 
-          <Button type="submit" size="lg" loading={isSubmitting} className="dark:bg-documenso dark:hover:opacity-90">
-            {isSubmitting ? <Trans>Signing in...</Trans> : <Trans>Sign In</Trans>}
-          </Button>
-
           {!isEmbeddedRedirect && (
             <>
-              {hasSocialAuthEnabled && (
+              {isEmailPasswordSigninEnabled && hasSocialAuthEnabled && (
                 <div className="relative flex items-center justify-center gap-x-4 py-2 text-xs uppercase">
                   <div className="h-px flex-1 bg-border" />
                   <span className="bg-transparent text-muted-foreground">

apps/remix/app/routes/_unauthenticated+/forgot-password.tsx

@@ -1,6 +1,7 @@
+import { isSigninEnabledForProvider } from '@documenso/lib/constants/auth';
 import { msg } from '@lingui/core/macro';
 import { Trans } from '@lingui/react/macro';
-import { Link } from 'react-router';
+import { Link, redirect } from 'react-router';
 
 import { ForgotPasswordForm } from '~/components/forms/forgot-password';
 import { appMetaTags } from '~/utils/meta';
@@ -9,6 +10,14 @@ export function meta() {
   return appMetaTags(msg`Forgot Password`);
 }
 
+export async function loader() {
+  if (!isSigninEnabledForProvider('email')) {
+    throw redirect('/signin');
+  }
+
+  return null;
+}
+
 export default function ForgotPasswordPage() {
   return (
     <div className="w-screen max-w-lg px-4">

apps/remix/app/routes/_unauthenticated+/reset-password.$token.tsx

@@ -1,3 +1,4 @@
+import { isSigninEnabledForProvider } from '@documenso/lib/constants/auth';
 import { getResetTokenValidity } from '@documenso/lib/server-only/user/get-reset-token-validity';
 import { msg } from '@lingui/core/macro';
 import { Trans } from '@lingui/react/macro';
@@ -13,6 +14,10 @@ export function meta() {
 }
 
 export async function loader({ params }: Route.LoaderArgs) {
+  if (!isSigninEnabledForProvider('email')) {
+    throw redirect('/signin');
+  }
+
   const { token } = params;
 
   const isValid = await getResetTokenValidity({ token });

apps/remix/app/routes/_unauthenticated+/reset-password._index.tsx

@@ -1,7 +1,8 @@
+import { isSigninEnabledForProvider } from '@documenso/lib/constants/auth';
 import { Button } from '@documenso/ui/primitives/button';
 import { msg } from '@lingui/core/macro';
 import { Trans } from '@lingui/react/macro';
-import { Link } from 'react-router';
+import { Link, redirect } from 'react-router';
 
 import { appMetaTags } from '~/utils/meta';
 
@@ -9,6 +10,14 @@ export function meta() {
   return appMetaTags(msg`Reset Password`);
 }
 
+export async function loader() {
+  if (!isSigninEnabledForProvider('email')) {
+    throw redirect('/signin');
+  }
+
+  return null;
+}
+
 export default function ResetPasswordPage() {
   return (
     <div className="w-screen max-w-lg px-4">

apps/remix/app/routes/_unauthenticated+/signin.tsx

@@ -1,8 +1,11 @@
+import { authClient } from '@documenso/auth/client';
 import { getOptionalSession } from '@documenso/auth/server/lib/utils/get-session';
 import {
   IS_GOOGLE_SSO_ENABLED,
   IS_MICROSOFT_SSO_ENABLED,
+  IS_OIDC_AUTO_REDIRECT_DISABLED,
   IS_OIDC_SSO_ENABLED,
+  isSigninEnabledForProvider,
   isSignupEnabledForProvider,
   OIDC_PROVIDER_LABEL,
 } from '@documenso/lib/constants/auth';
@@ -11,6 +14,7 @@ import { Alert, AlertDescription } from '@documenso/ui/primitives/alert';
 import { msg } from '@lingui/core/macro';
 import { useLingui } from '@lingui/react';
 import { Trans } from '@lingui/react/macro';
+import { Loader2Icon } from 'lucide-react';
 import { useEffect, useState } from 'react';
 import { Link, redirect, useSearchParams } from 'react-router';
 
@@ -28,10 +32,20 @@ export async function loader({ request }: Route.LoaderArgs) {
   const { isAuthenticated } = await getOptionalSession(request);
 
   // SSR env variables.
-  const isGoogleSSOEnabled = IS_GOOGLE_SSO_ENABLED;
-  const isMicrosoftSSOEnabled = IS_MICROSOFT_SSO_ENABLED;
-  const isOIDCSSOEnabled = IS_OIDC_SSO_ENABLED;
+  const isEmailPasswordSigninEnabled = isSigninEnabledForProvider('email');
+  const isGoogleSSOEnabled = IS_GOOGLE_SSO_ENABLED && isSigninEnabledForProvider('google');
+  const isMicrosoftSSOEnabled = IS_MICROSOFT_SSO_ENABLED && isSigninEnabledForProvider('microsoft');
+  const isOIDCSSOEnabled = IS_OIDC_SSO_ENABLED && isSigninEnabledForProvider('oidc');
+
+  // Automatically redirect to OIDC when it is the only enabled signin transport,
+  // unless the redirect has been explicitly disabled via env.
+  const isOIDCOnlyTransport =
+    isOIDCSSOEnabled && !isEmailPasswordSigninEnabled && !isGoogleSSOEnabled && !isMicrosoftSSOEnabled;
+
+  const shouldAutoRedirectToOIDC = isOIDCOnlyTransport && !IS_OIDC_AUTO_REDIRECT_DISABLED;
+
   const oidcProviderLabel = OIDC_PROVIDER_LABEL;
+
   const isSignupEnabled =
     isSignupEnabledForProvider('email') ||
     (IS_GOOGLE_SSO_ENABLED && isSignupEnabledForProvider('google')) ||
@@ -47,18 +61,28 @@ export async function loader({ request }: Route.LoaderArgs) {
   }
 
   return {
+    isEmailPasswordSigninEnabled,
     isGoogleSSOEnabled,
     isMicrosoftSSOEnabled,
     isOIDCSSOEnabled,
     isSignupEnabled,
     oidcProviderLabel,
     returnTo,
+    shouldAutoRedirectToOIDC,
   };
 }
 
 export default function SignIn({ loaderData }: Route.ComponentProps) {
-  const { isGoogleSSOEnabled, isMicrosoftSSOEnabled, isOIDCSSOEnabled, isSignupEnabled, oidcProviderLabel, returnTo } =
-    loaderData;
+  const {
+    isEmailPasswordSigninEnabled,
+    isGoogleSSOEnabled,
+    isMicrosoftSSOEnabled,
+    isOIDCSSOEnabled,
+    isSignupEnabled,
+    oidcProviderLabel,
+    returnTo,
+    shouldAutoRedirectToOIDC,
+  } = loaderData;
 
   const { _ } = useLingui();
 
@@ -76,6 +100,27 @@ export default function SignIn({ loaderData }: Route.ComponentProps) {
     setIsEmbeddedRedirect(params.get('embedded') === 'true');
   }, []);
 
+  useEffect(() => {
+    if (!shouldAutoRedirectToOIDC) {
+      return;
+    }
+
+    void authClient.oidc.signIn({ redirectPath: returnTo ?? '/' });
+  }, [shouldAutoRedirectToOIDC, returnTo]);
+
+  if (shouldAutoRedirectToOIDC) {
+    return (
+      <div className="w-screen max-w-lg px-4">
+        <div className="flex flex-col items-center justify-center gap-y-4 py-12">
+          <Loader2Icon className="h-8 w-8 animate-spin text-muted-foreground" />
+          <p className="text-muted-foreground text-sm">
+            <Trans>Redirecting to {oidcProviderLabel || 'OIDC'}...</Trans>
+          </p>
+        </div>
+      </div>
+    );
+  }
+
   return (
     <div className="w-screen max-w-lg px-4">
       <div className="z-10 rounded-xl border border-border bg-neutral-100 p-6 dark:bg-background">
@@ -95,6 +140,7 @@ export default function SignIn({ loaderData }: Route.ComponentProps) {
         <hr className="-mx-6 my-4" />
 
         <SignInForm
+          isEmailPasswordSigninEnabled={isEmailPasswordSigninEnabled}
           isGoogleSSOEnabled={isGoogleSSOEnabled}
           isMicrosoftSSOEnabled={isMicrosoftSSOEnabled}
           isOIDCSSOEnabled={isOIDCSSOEnabled}