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[bookstack] / app / Auth / Access / Saml2Service.php

diff --git a/app/Auth/Access/Saml2Service.php b/app/Auth/Access/Saml2Service.php
index 9c208832aba1b43aafb4864dae60991865502f45..a95e3b1d2e8d410f510680b0911bc7307ebd2269 100644 (file)
--- a/app/Auth/Access/Saml2Service.php
+++ b/app/Auth/Access/Saml2Service.php
@@ -9,6 +9,7 @@ use BookStack\Exceptions\StoppedAuthenticationException;
 use BookStack\Exceptions\UserRegistrationException;
 use Exception;
 use OneLogin\Saml2\Auth;
+use OneLogin\Saml2\Constants;
 use OneLogin\Saml2\Error;
 use OneLogin\Saml2\IdPMetadataParser;
 use OneLogin\Saml2\ValidationError;
@@ -19,14 +20,11 @@ use OneLogin\Saml2\ValidationError;
  */
 class Saml2Service
 {
-    protected $config;
-    protected $registrationService;
-    protected $loginService;
-    protected $groupSyncService;
+    protected array $config;
+    protected RegistrationService $registrationService;
+    protected LoginService $loginService;
+    protected GroupSyncService $groupSyncService;
 
-    /**
-     * Saml2Service constructor.
-     */
     public function __construct(
         RegistrationService $registrationService,
         LoginService $loginService,
@@ -59,13 +57,20 @@ class Saml2Service
      *
      * @throws Error
      */
-    public function logout(): array
+    public function logout(User $user): array
     {
         $toolKit = $this->getToolkit();
         $returnRoute = url('/');
 
         try {
-            $url = $toolKit->logout($returnRoute, [], null, null, true);
+            $url = $toolKit->logout(
+                $returnRoute,
+                [],
+                $user->email,
+                null,
+                true,
+                Constants::NAMEID_EMAIL_ADDRESS
+            );
             $id = $toolKit->getLastRequestID();
         } catch (Error $error) {
             if ($error->getCode() !== Error::SAML_SINGLE_LOGOUT_NOT_SUPPORTED) {
@@ -91,7 +96,7 @@ class Saml2Service
      * @throws JsonDebugException
      * @throws UserRegistrationException
      */
-    public function processAcsResponse(string $requestId, string $samlResponse): ?User
+    public function processAcsResponse(?string $requestId, string $samlResponse): ?User
     {
         // The SAML2 toolkit expects the response to be within the $_POST superglobal
         // so we need to manually put it back there at this point.
@@ -101,9 +106,10 @@ class Saml2Service
         $errors = $toolkit->getErrors();
 
         if (!empty($errors)) {
-            throw new Error(
-                'Invalid ACS Response: ' . implode(', ', $errors)
-            );
+            $reason = $toolkit->getLastErrorReason();
+            $message = 'Invalid ACS Response; Errors: ' . implode(', ', $errors);
+            $message .= $reason ? "; Reason: {$reason}" : '';
+            throw new Error($message);
         }
 
         if (!$toolkit->isAuthenticated()) {
@@ -124,8 +130,13 @@ class Saml2Service
     public function processSlsResponse(?string $requestId): ?string
     {
         $toolkit = $this->getToolkit();
-        $redirect = $toolkit->processSLO(true, $requestId, false, null, true);
 
+        // The $retrieveParametersFromServer in the call below will mean the library will take the query
+        // parameters, used for the response signing, from the raw $_SERVER['QUERY_STRING']
+        // value so that the exact encoding format is matched when checking the signature.
+        // This is primarily due to ADFS encoding query params with lowercase percent encoding while
+        // PHP (And most other sensible providers) standardise on uppercase.
+        $redirect = $toolkit->processSLO(true, $requestId, true, null, true);
         $errors = $toolkit->getErrors();
 
         if (!empty($errors)) {
@@ -155,7 +166,7 @@ class Saml2Service
      */
     public function metadata(): string
     {
-        $toolKit = $this->getToolkit();
+        $toolKit = $this->getToolkit(true);
         $settings = $toolKit->getSettings();
         $metadata = $settings->getSPMetadata();
         $errors = $settings->validateMetadata($metadata);
@@ -176,7 +187,7 @@ class Saml2Service
      * @throws Error
      * @throws Exception
      */
-    protected function getToolkit(): Auth
+    protected function getToolkit(bool $spOnly = false): Auth
     {
         $settings = $this->config['onelogin'];
         $overrides = $this->config['onelogin_overrides'] ?? [];
@@ -186,14 +197,14 @@ class Saml2Service
         }
 
         $metaDataSettings = [];
-        if ($this->config['autoload_from_metadata']) {
+        if (!$spOnly && $this->config['autoload_from_metadata']) {
             $metaDataSettings = IdPMetadataParser::parseRemoteXML($settings['idp']['entityId']);
         }
 
         $spSettings = $this->loadOneloginServiceProviderDetails();
         $settings = array_replace_recursive($settings, $spSettings, $metaDataSettings, $overrides);
 
-        return new Auth($settings);
+        return new Auth($settings, $spOnly);
     }
 
     /**