Add a setting to restrict authentication to SSO only - Closes #368, Closes #362

2024-11-25 09:44:04 +01:00 · 2024-09-20 10:50:25 +02:00 · 2024-09-20 10:50:25 +02:00 · 091129ef06
commit 091129ef06
parent 4d56e74b6f
16 changed files with 455 additions and 61 deletions
--- a/app/Http/Kernel.php
+++ b/app/Http/Kernel.php
@ -71,13 +71,14 @@ class Kernel extends HttpKernel
     * @var array<string, class-string|string>
     */
    protected $middlewareAliases = [
-        'auth'                 => \App\Http\Middleware\Authenticate::class,
-        'admin'                => \App\Http\Middleware\AdminOnly::class,
-        'guest'                => \App\Http\Middleware\RejectIfAuthenticated::class,
-        'throttle'             => \Illuminate\Routing\Middleware\ThrottleRequests::class,
-        'rejectIfDemoMode'     => \App\Http\Middleware\RejectIfDemoMode::class,
-        'rejectIfReverseProxy' => \App\Http\Middleware\RejectIfReverseProxy::class,
-        'cache.headers'        => \Illuminate\Http\Middleware\SetCacheHeaders::class,
+        'auth'                          => \App\Http\Middleware\Authenticate::class,
+        'admin'                         => \App\Http\Middleware\AdminOnly::class,
+        'guest'                         => \App\Http\Middleware\RejectIfAuthenticated::class,
+        'throttle'                      => \Illuminate\Routing\Middleware\ThrottleRequests::class,
+        'rejectIfDemoMode'              => \App\Http\Middleware\RejectIfDemoMode::class,
+        'rejectIfReverseProxy'          => \App\Http\Middleware\RejectIfReverseProxy::class,
+        'RejectIfSsoOnlyAndNotForAdmin' => \App\Http\Middleware\RejectIfSsoOnlyAndNotForAdmin::class,
+        'cache.headers'                 => \Illuminate\Http\Middleware\SetCacheHeaders::class,
        // 'password.confirm' => \Illuminate\Auth\Middleware\RequirePassword::class,
        // 'signed' => \App\Http\Middleware\ValidateSignature::class,
    ];
--- a/app/Http/Middleware/Authenticate.php
+++ b/app/Http/Middleware/Authenticate.php
@ -26,7 +26,8 @@ protected function authenticate($request, array $guards)
            // Will retreive the default guard
            $guards = [null];
        } else {
-            // We replace routes guard by the reverse proxy guard if necessary
+            // If reverse proxy is defined as the default guard, we force the
+            // authentication against this only guard.
            if (config('auth.defaults.guard') === $proxyGuard) {
                $guards = [$proxyGuard];
            }
--- a/app/Http/Middleware/RejectIfSsoOnlyAndNotForAdmin.php
+++ b/app/Http/Middleware/RejectIfSsoOnlyAndNotForAdmin.php
@ -0,0 +1,41 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use App\Facades\Settings;
+use App\Models\User;
+use Closure;
+use Illuminate\Http\Response;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\Log;
+
+class RejectIfSsoOnlyAndNotForAdmin
+{
+    /**
+     * Reject the request when it aims to modify or impact a user account in those 2 conditions:
+     * - The impacted account does not have the Administrator role
+     * - Authentication is restricted to SSO only
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        if (Settings::get('useSsoOnly')) {
+            if ($email = $request->input('email', null)) {
+                $user = User::whereEmail($email)->first();
+            }
+            else $user = Auth::user();
+    
+            if ($user?->isAdministrator()) {
+                return $next($request);
+            }
+    
+            Log::notice(sprintf('Request to %s rejected, only Admins can request it while authentication is restricted to SSO only', $request->getPathInfo()));
+            
+            return response()->json(['message' => __('errors.unsupported_with_sso_only')], Response::HTTP_METHOD_NOT_ALLOWED);
+        }
+
+        return $next($request);
+    }
+}
--- a/config/2fauth.php
+++ b/config/2fauth.php
@ -89,6 +89,7 @@
        'latestRelease' => false,
        'disableRegistration' => false,
        'enableSso' => true,
+        'useSsoOnly' => false,
        'restrictRegistration' => false,
        'restrictList' => '',
        'restrictRule' => '',
--- a/resources/js/components/SsoConnectLink.vue
+++ b/resources/js/components/SsoConnectLink.vue
@ -0,0 +1,31 @@
+<script setup>
+    const props = defineProps({
+        provider: {
+            type: String,
+            default: 'unknown'
+        }
+    })
+
+    const icons = {
+        unknown: {
+            collection: 'fa',
+            icon: 'globe',
+        },
+        github: {
+            collection: 'fab',
+            icon: 'github-alt',
+        },
+        openid: {
+            collection: 'fab',
+            icon: 'openid',
+        }
+    }
+</script>
+
+<template>
+    <a :id="'lnkSignWith' + props.provider" class="button is-link" :href="'socialite/redirect/' + props.provider">
+        {{ $t('auth.sso_providers.' + props.provider) }}
+        <FontAwesomeIcon class="ml-2" :icon="[icons[props.provider].collection, icons[props.provider].icon]" />
+    </a>
+</template>
+
--- a/resources/js/views/admin/Auth.vue
+++ b/resources/js/views/admin/Auth.vue
@ -78,6 +78,8 @@
                    <h4 class="title is-4 pt-4 has-text-grey-light">{{ $t('admin.single_sign_on') }}</h4>
                    <!-- enable SSO -->
                    <FormCheckbox v-model="appSettings.enableSso" @update:model-value="val => useAppSettingsUpdater('enableSso', val)" fieldName="enableSso" label="admin.forms.enable_sso.label" help="admin.forms.enable_sso.help" />
+                        <!-- use SSO only -->
+                        <FormCheckbox v-model="appSettings.useSsoOnly" @update:model-value="val => useAppSettingsUpdater('useSsoOnly', val)" fieldName="useSsoOnly" label="admin.forms.use_sso_only.label" help="admin.forms.use_sso_only.help" :isDisabled="!appSettings.enableSso" :isIndented="true" />
                    <h4 class="title is-4 pt-4 has-text-grey-light">{{ $t('admin.registrations') }}</h4>
                    <!-- restrict registration -->
                    <FormCheckbox v-model="appSettings.restrictRegistration" @update:model-value="val => useAppSettingsUpdater('restrictRegistration', val)" fieldName="restrictRegistration" :isDisabled="appSettings.disableRegistration" label="admin.forms.restrict_registration.label" help="admin.forms.restrict_registration.help" />
--- a/resources/js/views/auth/Login.vue
+++ b/resources/js/views/auth/Login.vue
@ -1,5 +1,6 @@
 <script setup>
    import Form from '@/components/formElements/Form'
+    import SsoConnectLink from '@/components/SsoConnectLink.vue'
    import { useUserStore } from '@/stores/user'
    import { useNotifyStore } from '@/stores/notify'
    import { useAppSettingsStore } from '@/stores/appSettings'
@ -16,13 +17,29 @@
        password: ''
    }))
    const isBusy = ref(false)
+    const activeForm = ref()
+
+    onMounted(() => {
+        if (appSettings.enableSso == true && appSettings.useSsoOnly == true) {
+            activeForm.value = 'sso'
+        }
+        else if (showWebauthnForm.value == true) {
+            activeForm.value = 'webauthn'
+        }
+        else activeForm.value = 'legacy'
+
+        // showWebauthnForm && appSettings.useSsoOnly != true
+    })
+
+    

    /**
     * Toggle the form between legacy and webauthn method
     */
-    function toggleForm() {
+    function switchToForm(formName) {
        form.clear()
-        showWebauthnForm.value = ! showWebauthnForm.value
+        activeForm.value = formName
+        showWebauthnForm.value = activeForm.value == 'webauthn'
    }

    /**
@ -101,7 +118,8 @@

 <template>
    <!-- webauthn authentication -->
-    <FormWrapper v-if="showWebauthnForm" title="auth.forms.webauthn_login" punchline="auth.welcome_to_2fauth">
+    <FormWrapper v-if="activeForm == 'webauthn'" title="auth.forms.webauthn_login" punchline="auth.welcome_to_2fauth">
+        <div v-if="appSettings.enableSso == true && appSettings.useSsoOnly == true" class="notification is-warning has-text-centered" v-html="$t('auth.forms.sso_only_form_restricted_to_admin')" />
        <div class="field">
            {{ $t('auth.webauthn.use_security_device_to_sign_in') }}
        </div>
@ -116,36 +134,64 @@
                    {{ $t('auth.webauthn.recover_your_account') }}
                </RouterLink>
            </p>
-            <p v-if="!user.preferences.useWebauthnOnly">{{ $t('auth.sign_in_using') }}&nbsp;
-                <a id="lnkSignWithLegacy" role="button" class="is-link" @keyup.enter="toggleForm" @click="toggleForm" tabindex="0">
+            <p>{{ $t('auth.sign_in_using') }}&nbsp;
+                <a id="lnkSignWithLegacy" role="button" class="is-link" @keyup.enter="switchToForm('legacy')" @click="switchToForm('legacy')" tabindex="0">
                    {{ $t('auth.login_and_password') }}
                </a>
            </p>
-            <p v-if="appSettings.disableRegistration == false" class="mt-4">
+            <p v-if="appSettings.disableRegistration == false && appSettings.useSsoOnly == false" class="mt-4">
                {{ $t('auth.forms.dont_have_account_yet') }}&nbsp;
                <RouterLink id="lnkRegister" :to="{ name: 'register' }" class="is-link">
                    {{ $t('auth.register') }}
                </RouterLink>
            </p>
-            <div v-if="appSettings.enableSso && Object.values($2fauth.config.sso).includes(true)" class="columns mt-4 is-variable is-1">
+            <div v-if="appSettings.enableSso == true && Object.values($2fauth.config.sso).includes(true)" class="columns mt-4 is-variable is-1">
                <div class="column is-narrow py-1">
                    {{ $t('auth.or_continue_with') }}
                </div>
                <div class="column py-1">
-                    <a v-if="$2fauth.config.sso.openid" id="lnkSignWithOpenID" class="button is-link is-outlined is-small ml-2" href="/socialite/redirect/openid">
-                        OpenID<FontAwesomeIcon class="ml-2" :icon="['fab', 'openid']" />
-                    </a>
-                    <a v-if="$2fauth.config.sso.github" id="lnkSignWithGithub" class="button is-link is-outlined is-small ml-2" href="/socialite/redirect/github">
-                        Github<FontAwesomeIcon class="ml-2" :icon="['fab', 'github-alt']" />
-                    </a>
+                    <div class="buttons">
+                        <template v-for="(isEnabled, provider) in $2fauth.config.sso">
+                            <SsoConnectLink v-if="isEnabled" :class="'is-outlined is-small'" :provider="provider" />
+                        </template>
+                    </div>
                </div>
            </div>
        </div>
    </FormWrapper>
-    <!-- login/password legacy form -->
-    <FormWrapper v-else title="auth.forms.login" punchline="auth.welcome_to_2fauth">
+    <!-- SSO only links -->
+    <FormWrapper v-else-if="activeForm == 'sso'" title="auth.forms.sso_login" punchline="auth.welcome_to_2fauth">
        <div v-if="$2fauth.isDemoApp" class="notification is-info has-text-centered is-radiusless" v-html="$t('auth.forms.welcome_to_demo_app_use_those_credentials')" />
        <div v-if="$2fauth.isTestingApp" class="notification is-warning has-text-centered is-radiusless" v-html="$t('auth.forms.welcome_to_testing_app_use_those_credentials')" />
+        <div class="nav-links">
+            <p class="">{{ $t('auth.password_login_and_webauthn_are_disabled') }}</p>
+            <p class="">{{ $t('auth.sign_in_using_sso') }}</p>
+        </div>
+        <div v-if="Object.values($2fauth.config.sso).includes(true)" class="buttons mt-4">
+            <template v-for="(isEnabled, provider) in $2fauth.config.sso">
+                <SsoConnectLink v-if="isEnabled" :provider="provider" />
+            </template>
+        </div>
+        <p v-else class="is-italic">- {{ $t('auth.no_provider') }} -</p>
+        <div class="nav-links">
+            <p>
+                {{ $t('auth.no_sso_provider_or_provider_is_missing') }}&nbsp;
+                <a id="lnkSsoDocs" class="is-link" tabindex="0" :href="$2fauth.urls.ssoDocUrl" target="_blank">
+                    {{ $t('auth.see_how_to_enable_sso') }}
+                </a>
+            </p>
+            <p >{{ $t('auth.if_administrator') }}&nbsp;
+                <a id="lnkSignWithLegacy" role="button" class="is-link" @keyup.enter="switchToForm('legacy')" @click="switchToForm('legacy')" tabindex="0">
+                    {{ $t('auth.sign_in_here') }}
+                </a>
+            </p>
+        </div>
+    </FormWrapper>
+    <!-- login/password legacy form -->
+    <FormWrapper v-else-if="activeForm == 'legacy'" title="auth.forms.login" punchline="auth.welcome_to_2fauth">
+        <div v-if="$2fauth.isDemoApp" class="notification is-info has-text-centered is-radiusless" v-html="$t('auth.forms.welcome_to_demo_app_use_those_credentials')" />
+        <div v-if="$2fauth.isTestingApp" class="notification is-warning has-text-centered is-radiusless" v-html="$t('auth.forms.welcome_to_testing_app_use_those_credentials')" />
+        <div v-if="appSettings.enableSso == true && appSettings.useSsoOnly == true" class="notification is-warning has-text-centered" v-html="$t('auth.forms.sso_only_form_restricted_to_admin')" />
        <form id="frmLegacyLogin" @submit.prevent="LegacysignIn" @keydown="form.onKeydown($event)">
            <FormField v-model="form.email" fieldName="email" :fieldError="form.errors.get('email')" inputType="email" label="auth.forms.email" autofocus />
            <FormPasswordField v-model="form.password" fieldName="password" :fieldError="form.errors.get('password')" label="auth.forms.password" />
@ -158,11 +204,11 @@
                </RouterLink>
            </p>
            <p >{{ $t('auth.sign_in_using') }}&nbsp;
-                <a id="lnkSignWithWebauthn" role="button" class="is-link" @keyup.enter="toggleForm" @click="toggleForm" tabindex="0" :aria-label="$t('auth.sign_in_using_security_device')">
+                <a id="lnkSignWithWebauthn" role="button" class="is-link" @keyup.enter="switchToForm('webauthn')" @click="switchToForm('webauthn')" tabindex="0" :aria-label="$t('auth.sign_in_using_security_device')">
                    {{ $t('auth.webauthn.security_device') }}
                </a>
            </p>
-            <p v-if="appSettings.disableRegistration == false" class="mt-4">
+            <p v-if="appSettings.disableRegistration == false && appSettings.useSsoOnly == false" class="mt-4">
                {{ $t('auth.forms.dont_have_account_yet') }}&nbsp;
                <RouterLink id="lnkRegister" :to="{ name: 'register' }" class="is-link">
                    {{ $t('auth.register') }}
@ -173,12 +219,11 @@
                    {{ $t('auth.or_continue_with') }}
                </div>
                <div class="column py-1">
-                    <a v-if="$2fauth.config.sso.openid" id="lnkSignWithOpenID" class="button is-link is-outlined is-small mr-2" href="/socialite/redirect/openid">
-                        OpenID<FontAwesomeIcon class="ml-2" :icon="['fab', 'openid']" />
-                    </a>
-                    <a v-if="$2fauth.config.sso.github" id="lnkSignWithGithub" class="button is-link is-outlined is-small mr-2" href="/socialite/redirect/github">
-                        Github<FontAwesomeIcon class="ml-2" :icon="['fab', 'github-alt']" />
-                    </a>
+                    <div class="buttons">
+                        <template v-for="(isEnabled, provider) in $2fauth.config.sso">
+                            <SsoConnectLink v-if="isEnabled" :class="'is-outlined is-small'" :provider="provider" />
+                        </template>
+                    </div>
                </div>
            </div>
        </div>
--- a/resources/js/views/settings/Account.vue
+++ b/resources/js/views/settings/Account.vue
@ -107,7 +107,7 @@
                <div v-if="user.isAdmin" class="notification is-warning">
                    {{ $t('settings.you_are_administrator') }}
                </div>
-                <div v-if="user.oauth_provider" class="notification is-info">
+                <div v-if="user.oauth_provider" class="notification is-info has-text-centered">
                    {{ $t('settings.account_linked_to_sso_x_provider', { provider: user.oauth_provider }) }}
                </div>
                <form @submit.prevent="submitProfile" @keydown="formProfile.onKeydown($event)">
--- a/resources/js/views/settings/OAuth.vue
+++ b/resources/js/views/settings/OAuth.vue
@ -4,20 +4,25 @@
    import SettingTabs from '@/layouts/SettingTabs.vue'
    import { useNotifyStore } from '@/stores/notify'
    import { UseColorMode } from '@vueuse/components'
+    import { useUserStore } from '@/stores/user'
    import Spinner from '@/components/Spinner.vue'

    const $2fauth = inject('2fauth')
    const notify = useNotifyStore()
+    const user = useUserStore()
    const returnTo = useStorage($2fauth.prefix + 'returnTo', 'accounts')
    const { copy } = useClipboard({ legacy: true })

    const tokens = ref([])
    const isFetching = ref(false)
-    const isRemoteUser = ref(false)
    const createPATModalIsVisible = ref(false)
    const visibleToken = ref(null)
    const visibleTokenId = ref(null)

+    const isDisabled = computed(() => {
+        return (appSettings.enableSso && appSettings.useSsoOnly) || user.authenticated_by_proxy
+    })
+
    onMounted(() => {
        fetchTokens()
    })
@ -47,9 +52,9 @@
        })
        .catch(error => {
            if( error.response.status === 405 ) {
-                // The backend returns a 405 response for routes with the
-                // rejectIfReverseProxy middleware
-                isRemoteUser.value = true
+                // The backend returns a 405 response if the user is authenticated by a reverse proxy
+                // or if SSO only is enabled.
+                // The form is already disabled (see isDisabled) so we do nothing more here
            }
            else {
                notify.error(error)
@ -69,7 +74,7 @@
    function showPATcreationForm() {
        clearTokenValues()

-        if (isRemoteUser.value) {
+        if (isDisabled.value) {
            notify.warn({ text: trans('errors.unsupported_with_reverseproxy') })
        }
        else createPATModalIsVisible.value = true
@ -141,7 +146,10 @@
        <SettingTabs :activeTab="'settings.oauth.tokens'" />
        <div class="options-tabs">
            <FormWrapper>
-                <div v-if="isRemoteUser" class="notification is-warning has-text-centered" v-html="$t('auth.auth_handled_by_proxy')" />
+                <div v-if="isDisabled && user.oauth_provider" class="notification is-warning has-text-centered">
+                    {{ $t('auth.sso_only_x_settings_are_disabled', { auth_method: 'OAuth' }) }}
+                </div>
+                <div v-if="isDisabled && user.authenticated_by_proxy" class="notification is-warning has-text-centered" v-html="$t('auth.auth_handled_by_proxy')" />
                <h4 class="title is-4 has-text-grey-light">{{ $t('settings.personal_access_tokens') }}</h4>
                <div class="is-size-7-mobile">
                    {{ $t('settings.token_legend')}}
--- a/resources/js/views/settings/WebAuthn.vue
+++ b/resources/js/views/settings/WebAuthn.vue
@ -2,6 +2,7 @@
    import SettingTabs from '@/layouts/SettingTabs.vue'
    import userService from '@/services/userService'
    import { webauthnService } from '@/services/webauthn/webauthnService'
+    import { useAppSettingsStore } from '@/stores/appSettings'
    import { useUserStore } from '@/stores/user'
    import { useNotifyStore } from '@/stores/notify'
    import { UseColorMode } from '@vueuse/components'
@ -9,13 +10,17 @@

    const $2fauth = inject('2fauth')
    const user = useUserStore()
+    const appSettings = useAppSettingsStore()
    const notify = useNotifyStore()
    const router = useRouter()
    const returnTo = useStorage($2fauth.prefix + 'returnTo', 'accounts')

    const credentials = ref([])
    const isFetching = ref(false)
-    const isRemoteUser = ref(false)
+
+    const isDisabled = computed(() => {
+        return (appSettings.enableSso && appSettings.useSsoOnly) || user.authenticated_by_proxy
+    })
    
    onMounted(() => {
        fetchCredentials()
@ -31,8 +36,7 @@
     * Register a new security device
     */
    function register() {
-
-        if (isRemoteUser == true) {
+        if (isDisabled.value == true) {
            notify.warn({text: trans('errors.unsupported_with_reverseproxy') })
            return false
        }
@ -95,9 +99,9 @@
        })
        .catch(error => {
            if( error.response.status === 405 ) {
-                // The backend returns a 405 response for routes with the
-                // rejectIfReverseProxy middleware
-                isRemoteUser.value = true
+                // The backend returns a 405 response if the user is authenticated by a reverse proxy
+                // or if SSO only is enabled.
+                // The form is already disabled (see isDisabled) so we do nothing more here
            }
            else {
                notify.error(error)
@ -120,7 +124,10 @@
        <SettingTabs :activeTab="'settings.webauthn.devices'" />
        <div class="options-tabs">
            <FormWrapper>
-                <div v-if="isRemoteUser" class="notification is-warning has-text-centered" v-html="$t('auth.auth_handled_by_proxy')" />
+                <div v-if="isDisabled && user.oauth_provider" class="notification is-warning has-text-centered">
+                    {{ $t('auth.sso_only_x_settings_are_disabled', { auth_method: 'WebAuthn' }) }}
+                </div>
+                <div v-if="isDisabled && user.authenticated_by_proxy" class="notification is-warning has-text-centered" v-html="$t('auth.auth_handled_by_proxy')" />
                <h4 class="title is-4 has-text-grey-light">{{ $t('auth.webauthn.security_devices') }}</h4>
                <div class="is-size-7-mobile">
                    {{ $t('auth.webauthn.security_devices_legend')}}
@ -161,7 +168,7 @@
                        fieldName="useWebauthnOnly"
                        label="auth.webauthn.use_webauthn_only.label"
                        help="auth.webauthn.use_webauthn_only.help"
-                        :disabled="isRemoteUser || credentials.length === 0"
+                        :isDisabled="isDisabled || credentials.length === 0"
                    />
                </form>
                <!-- footer -->
--- a/resources/lang/en/admin.php
+++ b/resources/lang/en/admin.php
@ -110,6 +110,10 @@
            'label' => 'Enable SSO',
            'help' => 'Allow visitors to authenticate using an external ID via the Single Sign-On scheme',
        ],
+        'use_sso_only' => [
+            'label' => 'Use SSO only',
+            'help' => 'Make SSO the only available method to log in to 2FAuth. Password login and Webauthn are then disabled for regular users. Administrators are not affected by this restriction.',
+        ],
        'keep_sso_registration_enabled' => [
            'label' => 'Keep SSO registration enabled',
            'help' => 'Allow new users to sign in for the first time via SSO whereas registration is disabled',
--- a/resources/lang/en/auth.php
+++ b/resources/lang/en/auth.php
@ -22,7 +22,14 @@
    'sign_out' => 'Sign out',
    'sign_in' => 'Sign in',
    'sign_in_using' => 'Sign in using',
+    'if_administrator' => 'Administrator?',
+    'sign_in_here' => 'You can sign without SSO',
    'or_continue_with' => 'You can also continue with:',
+    'password_login_and_webauthn_are_disabled' => 'Password login and WebAuthn are disabled.',
+    'sign_in_using_sso' => 'Pick an SSO provider to sign in with:',
+    'no_provider' => 'no provider',
+    'no_sso_provider_or_provider_is_missing' => 'Provider is missing?',
+    'see_how_to_enable_sso' => 'See how to enable a provider',
    'sign_in_using_security_device' => 'Sign in using a security device',
    'login_and_password' => 'login & password',
    'register' => 'Register',
@ -34,6 +41,7 @@
    'maybe_later' => 'Maybe later',
    'user_account_controlled_by_proxy' => 'User account made available by an authentication proxy.<br />Manage the account at proxy level.',
    'auth_handled_by_proxy' => 'Authentication handled by a reverse proxy, below settings are disabled.<br />Manage authentication at proxy level.',
+    'sso_only_x_settings_are_disabled' => 'Authentication is restricted to SSO only, :auth_method is disabled',
    'confirm' => [
        'logout' => 'Are you sure you want to log out?',
        'revoke_device' => 'Are you sure you want to revoke this device?',
@ -79,6 +87,7 @@
        'name' => 'Name',
        'login' => 'Login',
        'webauthn_login' => 'WebAuthn login',
+        'sso_login' => 'SSO login',
        'email' => 'Email',
        'password' => 'Password',
        'reveal_password' => 'Reveal password',
@ -94,6 +103,7 @@
        'reset_your_password' => 'Reset your password',
        'reset_password' => 'Reset password',
        'disabled_in_demo' => 'Feature disabled in Demo mode',
+        'sso_only_form_restricted_to_admin' => 'Regular users must sign in with SSO. Other methods are for administrators only.',
        'new_password' => 'New password',
        'current_password' => [
            'label' => 'Current password',
@ -124,5 +134,9 @@
        'optional_rules_you_should_follow' => 'Recommanded (highly)',
        'caps_lock_is_on' => 'Caps lock is On',
    ],
-
+    'sso_providers' => [
+        'unknown' => 'unknown',
+        'github' => 'Github',
+        'openid' => 'OpenID'
+    ]
 ];
--- a/resources/lang/en/errors.php
+++ b/resources/lang/en/errors.php
@ -43,7 +43,8 @@
    '2fauth_has_not_a_valid_domain' => '2FAuth\'s domain is not a valid domain',
    'user_id_not_between_1_64' => 'User ID was not between 1 and 64 chars',
    'no_entry_was_of_type_public_key' => 'No entry was of type "public-key"',
-    'unsupported_with_reverseproxy' => 'Not applicable when using an auth proxy',
+    'unsupported_with_reverseproxy' => 'Not applicable when using an auth proxy or SSO',
+    'unsupported_with_sso_only' => 'This authentication method is for administrators only. Users must log in with SSO.',
    'user_deletion_failed' => 'User account deletion failed, no data have been deleted',
    'auth_proxy_failed' => 'Proxy authentication failed',
    'auth_proxy_failed_legend' => '2Fauth is configured to run behind an authentication proxy but your proxy does not return the expected header. Check your configuration and try again.',
--- a/routes/web.php
+++ b/routes/web.php
@ -35,7 +35,7 @@
 /**
 * Routes that only work for unauthenticated user (return an error otherwise)
 */
-Route::group(['middleware' => ['guest', 'rejectIfDemoMode']], function () {
+Route::group(['middleware' => ['guest', 'rejectIfDemoMode', 'RejectIfSsoOnlyAndNotForAdmin']], function () {
    Route::post('user', [RegisterController::class, 'register'])->name('user.register');
    Route::post('user/password/lost', [ForgotPasswordController::class, 'sendResetLinkEmail'])->name('user.password.lost');
    Route::post('user/password/reset', [ResetPasswordController::class, 'reset'])->name('password.reset');
@ -46,7 +46,7 @@
 /**
 * Routes that can be requested max 10 times per minute by the same IP
 */
-Route::group(['middleware' => ['rejectIfDemoMode', 'throttle:10,1']], function () {
+Route::group(['middleware' => ['rejectIfDemoMode', 'throttle:10,1', 'RejectIfSsoOnlyAndNotForAdmin']], function () {
    Route::post('webauthn/recover', [WebAuthnRecoveryController::class, 'recover'])->name('webauthn.recover');
 });

@ -55,15 +55,16 @@
 * that can be requested max 10 times per minute by the same IP
 */
 Route::group(['middleware' => ['guest', 'throttle:10,1']], function () {
-    Route::post('user/login', [LoginController::class, 'login'])->name('user.login');
-    Route::post('webauthn/login', [WebAuthnLoginController::class, 'login'])->name('webauthn.login');
+    Route::post('user/login', [LoginController::class, 'login'])->name('user.login')->middleware('RejectIfSsoOnlyAndNotForAdmin');;
+    Route::post('webauthn/login', [WebAuthnLoginController::class, 'login'])->name('webauthn.login')->middleware('RejectIfSsoOnlyAndNotForAdmin');

    Route::get('/socialite/redirect/{driver}', [SocialiteController::class, 'redirect'])->name('socialite.redirect');
    Route::get('/socialite/callback/{driver}', [SocialiteController::class, 'callback'])->name('socialite.callback');
 });

 /**
- * Routes protected by an authentication guard but rejected when reverse-proxy guard is enabled
+ * Routes protected by an authentication guard but rejected when the reverse-proxy
+ * guard is enabled or SSO only is enabled
 */
 Route::group(['middleware' => ['behind-auth', 'rejectIfReverseProxy']], function () {
    Route::put('user', [UserController::class, 'update'])->name('user.update');
@ -71,15 +72,15 @@
    Route::get('user/logout', [LoginController::class, 'logout'])->name('user.logout');
    Route::delete('user', [UserController::class, 'delete'])->name('user.delete')->middleware('rejectIfDemoMode');

-    Route::get('oauth/personal-access-tokens', [PersonalAccessTokenController::class, 'forUser'])->name('passport.personal.tokens.index');
-    Route::post('oauth/personal-access-tokens', [PersonalAccessTokenController::class, 'store'])->name('passport.personal.tokens.store');
-    Route::delete('oauth/personal-access-tokens/{token_id}', [PersonalAccessTokenController::class, 'destroy'])->name('passport.personal.tokens.destroy');
+    Route::get('oauth/personal-access-tokens', [PersonalAccessTokenController::class, 'forUser'])->name('passport.personal.tokens.index')->middleware('RejectIfSsoOnlyAndNotForAdmin');
+    Route::post('oauth/personal-access-tokens', [PersonalAccessTokenController::class, 'store'])->name('passport.personal.tokens.store')->middleware('RejectIfSsoOnlyAndNotForAdmin');
+    Route::delete('oauth/personal-access-tokens/{token_id}', [PersonalAccessTokenController::class, 'destroy'])->name('passport.personal.tokens.destroy')->middleware('RejectIfSsoOnlyAndNotForAdmin');

-    Route::post('webauthn/register/options', [WebAuthnRegisterController::class, 'options'])->name('webauthn.register.options');
-    Route::post('webauthn/register', [WebAuthnRegisterController::class, 'register'])->name('webauthn.register');
-    Route::get('webauthn/credentials', [WebAuthnManageController::class, 'index'])->name('webauthn.credentials.index');
-    Route::patch('webauthn/credentials/{credential}/name', [WebAuthnManageController::class, 'rename'])->name('webauthn.credentials.rename');
-    Route::delete('webauthn/credentials/{credential}', [WebAuthnManageController::class, 'delete'])->name('webauthn.credentials.delete');
+    Route::post('webauthn/register/options', [WebAuthnRegisterController::class, 'options'])->name('webauthn.register.options')->middleware('RejectIfSsoOnlyAndNotForAdmin');
+    Route::post('webauthn/register', [WebAuthnRegisterController::class, 'register'])->name('webauthn.register')->middleware('RejectIfSsoOnlyAndNotForAdmin');
+    Route::get('webauthn/credentials', [WebAuthnManageController::class, 'index'])->name('webauthn.credentials.index')->middleware('RejectIfSsoOnlyAndNotForAdmin');
+    Route::patch('webauthn/credentials/{credential}/name', [WebAuthnManageController::class, 'rename'])->name('webauthn.credentials.rename')->middleware('RejectIfSsoOnlyAndNotForAdmin');
+    Route::delete('webauthn/credentials/{credential}', [WebAuthnManageController::class, 'delete'])->name('webauthn.credentials.delete')->middleware('RejectIfSsoOnlyAndNotForAdmin');
 });

 /**
--- a/tests/Feature/Http/Auth/WebAuthnLoginControllerTest.php
+++ b/tests/Feature/Http/Auth/WebAuthnLoginControllerTest.php
@ -3,7 +3,9 @@
 namespace Tests\Feature\Http\Auth;

 use App\Extensions\WebauthnTwoFAuthUserProvider;
+use App\Facades\Settings;
 use App\Http\Controllers\Auth\WebAuthnLoginController;
+use App\Http\Middleware\RejectIfSsoOnlyAndNotForAdmin;
 use App\Listeners\Authentication\FailedLoginListener;
 use App\Listeners\Authentication\LoginListener;
 use App\Models\User;
@ -26,6 +28,7 @@
 #[CoversClass(WebauthnTwoFAuthUserProvider::class)]
 #[CoversClass(LoginListener::class)]
 #[CoversClass(FailedLoginListener::class)]
+#[CoversMethod(RejectIfSsoOnlyAndNotForAdmin::class, 'handle')]
 class WebAuthnLoginControllerTest extends FeatureTestCase
 {
    /**
@ -125,6 +128,34 @@ public function test_webauthn_login_returns_success()
            ]);
    }

+    #[Test]
+    public function test_webauthn_login_of_admin_returns_success_even_with_sso_only_enabled()
+    {
+        Settings::set('useSsoOnly', true);
+        
+        $this->user->promoteToAdministrator(true);
+        $this->user->save();
+
+        $this->createWebauthnCredential(self::CREDENTIAL_ID_ALT, $this->user->id, self::USER_ID_ALT);
+        $this->addWebauthnChallengeToSession();
+
+        $this->json('POST', '/webauthn/login', self::ASSERTION_RESPONSE)
+            ->assertOk()
+            ->assertJsonFragment([
+                'message'  => 'authenticated',
+                'id'       => $this->user->id,
+                'name'     => $this->user->name,
+                'email'    => $this->user->email,
+                'is_admin' => true,
+            ])
+            ->assertJsonStructure([
+                'preferences',
+            ]);
+        
+        $this->user->promoteToAdministrator(false);
+        $this->user->save();
+    }
+
    #[Test]
    public function test_webauthn_login_sends_new_device_notification_to_existing_user()
    {
--- a/tests/Feature/Http/Middlewares/RejectIfSsoOnlyAndNotForAdminMiddlewareTest.php
+++ b/tests/Feature/Http/Middlewares/RejectIfSsoOnlyAndNotForAdminMiddlewareTest.php
@ -0,0 +1,206 @@
+<?php
+
+namespace Tests\Feature\Http\Middlewares;
+
+use App\Facades\Settings;
+use App\Http\Middleware\RejectIfSsoOnlyAndNotForAdmin;
+use App\Models\User;
+use Illuminate\Http\Response;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\CoversNothing;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\Test;
+use Tests\FeatureTestCase;
+
+/**
+ * RejectIfSsoOnlyAndNotForAdminMiddlewareTest test class
+ */
+#[CoversClass(RejectIfSsoOnlyAndNotForAdmin::class)]
+class RejectIfSsoOnlyAndNotForAdminMiddlewareTest extends FeatureTestCase
+{
+    /**
+     * @var \App\Models\User|\Illuminate\Contracts\Auth\Authenticatable
+     */
+    protected $user;
+
+    /**
+     * @var \App\Models\User|\Illuminate\Contracts\Auth\Authenticatable
+     */
+    protected $admin;
+
+    private const PASSWORD = 'password';
+
+    public function setUp() : void
+    {
+        parent::setUp();
+
+        $this->user  = User::factory()->create();
+        $this->admin = User::factory()->administrator()->create([
+            'password' => self::PASSWORD
+        ]);
+
+        Settings::set('useSsoOnly', true);
+    }
+
+    #[Test]
+    public function test_admin_login_with_password_returns_success()
+    {
+        $this->json('POST', '/user/login', [
+            'email'    => $this->admin->email,
+            'password' => self::PASSWORD,
+        ])
+            ->assertOk();
+    }
+
+    #[Test]
+    #[CoversNothing]
+    public function test_admin_login_with_webauthn_returns_success()
+    {
+        // See WebAuthnLoginControllerTest->test_webauthn_login_of_admin_returns_success_even_with_sso_only_enabled()
+    }
+
+    #[Test]
+    public function test_login_of_missing_account_returns_NOT_ALLOWED()
+    {
+        $this->json('POST', '/user/login', [
+            'email'    => 'missing@user.com',
+            'password' => self::PASSWORD,
+        ])
+            ->assertMethodNotAllowed();
+    }
+
+    #[Test]
+    #[DataProvider('providePublicEndPoints')]
+    public function test_public_endpoint_does_not_return_NOT_ALLOWED_if_requested_for_an_admin(string $method, string $url)
+    {
+        $expectedResponseCodes = [
+            Response::HTTP_OK,
+            Response::HTTP_UNPROCESSABLE_ENTITY,
+        ];
+
+        $response = $this->json($method, $url, [
+            'email' => $this->admin->email,
+        ]);
+
+        $this->assertContains($response->getStatusCode(), $expectedResponseCodes);
+    }
+
+    #[Test]
+    #[DataProvider('providePublicEndPoints')]
+    public function test_public_endpoint_returns_NOT_ALLOWED_if_requested_for_regular_user(string $method, string $url)
+    {
+        $this->json($method, $url)
+            ->assertMethodNotAllowed();
+    }
+
+    /**
+     * Provide Valid data for validation test
+     */
+    public static function providePublicEndPoints() : array
+    {
+        return [
+            'PWD_REGISTER' => [
+                'method' => 'POST',
+                'url'    => '/user',
+            ],
+            'PWD_LOGIN' => [
+                'method' => 'POST',
+                'url'    => '/user/login',
+            ],
+            'PWD_LOST' => [
+                'method' => 'POST',
+                'url'    => '/user/password/lost',
+            ],
+            'PWD_RESET' => [
+                'method' => 'POST',
+                'url'    => '/user/password/reset',
+            ],
+            'WEBAUTHN_LOGIN' => [
+                'method' => 'POST',
+                'url'    => '/webauthn/login',
+            ],
+            'WEBAUTHN_LOGIN_OPTIONS' => [
+                'method' => 'POST',
+                'url'    => '/webauthn/login/options',
+            ],
+            'WEBAUTHN_LOST' => [
+                'method' => 'POST',
+                'url'    => '/webauthn/lost',
+            ],
+            'WEBAUTHN_RECOVER' => [
+                'method' => 'POST',
+                'url'    => '/webauthn/recover',
+            ],
+        ];
+    }
+
+    #[Test]
+    #[DataProvider('provideProtectedEndPoints')]
+    public function test_protected_endpoint_are_allowed_if_requested_by_an_admin(string $method, string $url)
+    {
+        $expectedResponseCodes = [
+            Response::HTTP_OK,
+            Response::HTTP_UNPROCESSABLE_ENTITY,
+            Response::HTTP_NOT_FOUND,
+            Response::HTTP_CREATED,
+            Response::HTTP_NO_CONTENT,
+        ];
+
+        $response = $this->actingAs($this->admin, 'web-guard')
+            ->json($method, $url, [
+                'email' => $this->admin->email,
+            ]);
+
+        $this->assertContains($response->getStatusCode(), $expectedResponseCodes);
+    }
+
+    #[Test]
+    #[DataProvider('provideProtectedEndPoints')]
+    public function test_protected_endpoint_returns_NOT_ALLOWED_if_requested_by_regular_user(string $method, string $url)
+    {
+        $this->actingAs($this->user, 'web-guard')
+            ->json($method, $url)
+            ->assertMethodNotAllowed();
+    }
+
+    /**
+     * Provide Valid data for validation test
+     */
+    public static function provideProtectedEndPoints() : array
+    {
+        return [
+            'WEBAUTHN_REGISTER' => [
+                'method' => 'POST',
+                'url'    => '/webauthn/register',
+            ],
+            'WEBAUTHN_REGISTER_OPTIONS' => [
+                'method' => 'POST',
+                'url'    => '/webauthn/register/options',
+            ],
+            'WEBAUTHN_CREDENTIALS_ALL' => [
+                'method' => 'GET',
+                'url'    => '/webauthn/credentials',
+            ],
+            'WEBAUTHN_CREDENTIALS_PATCH' => [
+                'method' => 'PATCH',
+                'url'    => '/webauthn/credentials/FAKE_CREDENTIAL_ID/name',
+            ],
+            'WEBAUTHN_CREDENTIALS_DELETE' => [
+                'method' => 'DELETE',
+                'url'    => '/webauthn/credentials/FAKE_CREDENTIAL_ID',
+            ],
+            'OAUTH_PAT_ALL' => [
+                'method' => 'GET',
+                'url'    => '/oauth/personal-access-tokens',
+            ],
+            'OAUTH_PAT_STORE' => [
+                'method' => 'POST',
+                'url'    => '/oauth/personal-access-tokens',
+            ],
+            'OAUTH_PAT_DELETE' => [
+                'method' => 'DELETE',
+                'url'    => '/oauth/personal-access-tokens/FAKE_TOKEN_ID',
+            ],
+        ];
+    }
+}