Merge pull request #1 from nextgen-networks/php_8.5_ready-16593493786561827381

PHP 8.4/8.5 Compatibility: Fix implicit nullable types in Predis

integrations/nextcloud/snappymail/appinfo/info.xml

@@ -64,7 +64,7 @@ There, click on the link to go to the SnappyMail admin panel.
 		<lib>xxtea</lib>
 		<lib>zip</lib>
 -->
-		<nextcloud min-version="20" max-version="32" />
+		<nextcloud min-version="25" max-version="33" />
 	</dependencies>
 	<settings>
 		<admin>OCA\SnappyMail\Settings\AdminSettings</admin>

integrations/nextcloud/snappymail/lib/AppInfo/Application.php

@@ -5,7 +5,6 @@ namespace OCA\SnappyMail\AppInfo;
 use OCA\SnappyMail\Util\SnappyMailHelper;
 use OCA\SnappyMail\Controller\FetchController;
 use OCA\SnappyMail\Controller\PageController;
-use OCA\SnappyMail\Dashboard\UnreadMailWidget;
 use OCA\SnappyMail\Search\Provider;
 use OCA\SnappyMail\Listeners\AccessTokenUpdatedListener;
 
@@ -18,6 +17,10 @@ use OCP\IUser;
 use OCP\User\Events\PostLoginEvent;
 use OCP\User\Events\BeforeUserLoggedOutEvent;
 use OCA\OIDCLogin\Events\AccessTokenUpdatedEvent;
+use OCP\IConfig;
+use OCP\ISession;
+use OCP\IUserSession;
+use OCP\INavigationManager;
 
 class Application extends App implements IBootstrap
 {
@@ -37,7 +40,9 @@ class Application extends App implements IBootstrap
 			'PageController', function($c) {
 				return new PageController(
 					$c->query('AppName'),
-					$c->query('Request')
+					$c->query('Request'),
+					$c->query(IConfig::class),
+					$c->query(INavigationManager::class)
 				);
 			}
 		);
@@ -47,9 +52,10 @@ class Application extends App implements IBootstrap
 				return new FetchController(
 					$c->query('AppName'),
 					$c->query('Request'),
-					$c->getServer()->getAppManager(),
+					$c->query('ServerContainer')->getAppManager(),
 					$c->query('ServerContainer')->getConfig(),
-					$c->query(IL10N::class)
+					$c->query(IL10N::class),
+					$c->query(IUserSession::class)
 				);
 			}
 		);
@@ -72,22 +78,24 @@ class Application extends App implements IBootstrap
 
 	public function boot(IBootContext $context): void
 	{
-		if (!\is_dir(\rtrim(\trim(\OC::$server->getSystemConfig()->getValue('datadirectory', '')), '\\/') . '/appdata_snappymail')) {
+		$config = $context->getServerContainer()->getConfig();
+		if (!\is_dir(\rtrim(\trim($config->getSystemValue('datadirectory', '')), '\\/') . '/appdata_snappymail')) {
 			return;
 		}
 
 		$dispatcher = $context->getAppContainer()->query('OCP\EventDispatcher\IEventDispatcher');
-		$dispatcher->addListener(PostLoginEvent::class, function (PostLoginEvent $Event) {
+		$dispatcher->addListener(PostLoginEvent::class, function (PostLoginEvent $Event) use ($context) {
 /*
-			$config = \OC::$server->getConfig();
+			$config = $context->getServerContainer()->getConfig();
 			// Only store the user's password in the current session if they have
 			// enabled auto-login using Nextcloud username or email address.
 			if ($config->getAppValue('snappymail', 'snappymail-autologin', false)
 			 || $config->getAppValue('snappymail', 'snappymail-autologin-with-email', false)) {
 */
 				$sUID = $Event->getUser()->getUID();
-				\OC::$server->getSession()['snappymail-nc-uid'] = $sUID;
+				$session = $context->getServerContainer()->getSession();
-				\OC::$server->getSession()['snappymail-passphrase'] = SnappyMailHelper::encodePassword($Event->getPassword(), $sUID);
+				$session['snappymail-nc-uid'] = $sUID;
+				$session['snappymail-passphrase'] = SnappyMailHelper::encodePassword($Event->getPassword(), $sUID);
 /*
 			}
 */
@@ -105,13 +113,13 @@ class Application extends App implements IBootstrap
 		// https://github.com/nextcloud/impersonate/pull/180
 		$class = 'OCA\Impersonate\Events\BeginImpersonateEvent';
 		if (\class_exists($class)) {
-			$dispatcher->addListener($class, function ($Event) {
+			$dispatcher->addListener($class, function ($Event) use ($context) {
-				\OC::$server->getSession()['snappymail-passphrase'] = '';
+				$context->getServerContainer()->getSession()['snappymail-passphrase'] = '';
 				SnappyMailHelper::loadApp();
 				\RainLoop\Api::Actions()->Logout(true);
 			});
-			$dispatcher->addListener('OCA\Impersonate\Events\EndImpersonateEvent', function ($Event) {
+			$dispatcher->addListener('OCA\Impersonate\Events\EndImpersonateEvent', function ($Event) use ($context) {
-				\OC::$server->getSession()['snappymail-passphrase'] = '';
+				$context->getServerContainer()->getSession()['snappymail-passphrase'] = '';
 				SnappyMailHelper::loadApp();
 				\RainLoop\Api::Actions()->Logout(true);
 			});

integrations/nextcloud/snappymail/lib/Command/Settings.php

@@ -3,14 +3,14 @@
 namespace OCA\SnappyMail\Command;
 
 use OCA\SnappyMail\Util\SnappyMailHelper;
-use OC\Core\Command\Base;
 use OCP\IConfig;
 use OCP\IUserManager;
+use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 
-class Settings extends Base
+class Settings extends Command
 {
 	protected IUserManager $userManager;
 	protected IConfig $config;

integrations/nextcloud/snappymail/lib/ContentSecurityPolicy.php

@@ -2,6 +2,9 @@
 
 namespace OCA\SnappyMail;
 
+use OCP\Server;
+use OCP\Security\IContentSecurityPolicyNonceManager;
+
 class ContentSecurityPolicy extends \OCP\AppFramework\Http\ContentSecurityPolicy {
 
 	/** @var bool Whether inline JS snippets are allowed */
@@ -37,7 +40,7 @@ class ContentSecurityPolicy extends \OCP\AppFramework\Http\ContentSecurityPolicy
 	public function getSnappyMailNonce() {
 		static $sNonce;
 		if (!$sNonce) {
-			$cspManager = \OC::$server->getContentSecurityPolicyNonceManager();
+			$cspManager = Server::get(IContentSecurityPolicyNonceManager::class);
 			$sNonce = $cspManager->getNonce() ?: \SnappyMail\UUID::generate();
 			if (\method_exists($cspManager, 'browserSupportsCspV3') && !$cspManager->browserSupportsCspV3()) {
 				$this->addAllowedScriptDomain("'nonce-{$sNonce}'");

integrations/nextcloud/snappymail/lib/Controller/FetchController.php

@@ -10,17 +10,21 @@ use OCP\AppFramework\Http\JSONResponse;
 use OCP\IConfig;
 use OCP\IL10N;
 use OCP\IRequest;
+use OCP\IUserSession;
+use Exception;
 
 class FetchController extends Controller {
 	private IConfig $config;
 	private IAppManager $appManager;
 	private IL10N $l;
+	private IUserSession $userSession;
 
-	public function __construct(string $appName, IRequest $request, IAppManager $appManager, IConfig $config, IL10N $l) {
+	public function __construct(string $appName, IRequest $request, IAppManager $appManager, IConfig $config, IL10N $l, IUserSession $userSession) {
 		parent::__construct($appName, $request);
 		$this->config = $config;
 		$this->appManager = $appManager;
 		$this->l = $l;
+		$this->userSession = $userSession;
 	}
 
 	public function upgrade(): JSONResponse {
@@ -104,15 +108,18 @@ class FetchController extends Controller {
 		try {
 			$sEmail = '';
 			if (isset($_POST['appname'], $_POST['snappymail-password'], $_POST['snappymail-email']) && 'snappymail' === $_POST['appname']) {
-				$sUser =  \OC::$server->getUserSession()->getUser()->getUID();
+				$user = $this->userSession->getUser();
+				$sUser = $user ? $user->getUID() : '';
 
-				$sEmail = $_POST['snappymail-email'];
+				if ($sUser) {
-				$this->config->setUserValue($sUser, 'snappymail', 'snappymail-email', $sEmail);
+					$sEmail = $_POST['snappymail-email'];
+					$this->config->setUserValue($sUser, 'snappymail', 'snappymail-email', $sEmail);
 
-				$sPass = $_POST['snappymail-password'];
+					$sPass = $_POST['snappymail-password'];
-				if ('******' !== $sPass) {
+					if ('******' !== $sPass) {
-					$this->config->setUserValue($sUser, 'snappymail', 'passphrase',
+						$this->config->setUserValue($sUser, 'snappymail', 'passphrase',
-						$sPass ? SnappyMailHelper::encodePassword($sPass, \md5($sEmail)) : '');
+							$sPass ? SnappyMailHelper::encodePassword($sPass, \md5($sEmail)) : '');
+					}
 				}
 			} else {
 				return new JSONResponse([
@@ -144,4 +151,3 @@ class FetchController extends Controller {
 		}
 	}
 }
-

integrations/nextcloud/snappymail/lib/Controller/PageController.php

@@ -7,23 +7,27 @@ use OCA\SnappyMail\ContentSecurityPolicy;
 
 use OCP\AppFramework\Controller;
 use OCP\AppFramework\Http\TemplateResponse;
-
+use OCP\INavigationManager;
-// SnappyMail Nextcoud 32 compatibility workaound - START
+use OCP\IConfig;
-// src: https://github.com/the-djmaze/snappymail/issues/1994#issuecomment-3366086651
+use OCP\IRequest;
-
-use OCP\INavigationManager;  // <<<<<<<<<<<< add this 
-use OCP\Server; // <<<<<<<<<<<< add this 
 
 class PageController extends Controller
 {
+	private IConfig $config;
+	private INavigationManager $navigationManager;
+
+	public function __construct($appName, IRequest $request, IConfig $config, INavigationManager $navigationManager) {
+		parent::__construct($appName, $request);
+		$this->config = $config;
+		$this->navigationManager = $navigationManager;
+	}
+
 	/**
 	 * @NoAdminRequired
 	 * @NoCSRFRequired
 	 */
 	public function index()
 	{
-		$config = \OC::$server->getConfig();
-        $nav = Server::get(INavigationManager::class);  // <<<<<<<<<<<< add this 
 		$bAdmin = false;
 		if (!empty($_SERVER['QUERY_STRING'])) {
 			SnappyMailHelper::loadApp();
@@ -33,11 +37,8 @@ class PageController extends Controller
 			}
 		}
 
-		if (!$bAdmin && $config->getAppValue('snappymail', 'snappymail-no-embed')) {
+		if (!$bAdmin && $this->config->getAppValue('snappymail', 'snappymail-no-embed')) {
-            // \OC::$server->getNavigationManager()->setActiveEntry('snappymail'); // <<<<<<<<<<<< Comment this
+			$this->navigationManager->setActiveEntry('snappymail');
-            $nav->setActiveEntry('snappymail');  // <<<<<<<<<<<< add this 
-			\OCP\Util::addScript('snappymail', 'snappymail');
-			\OCP\Util::addStyle('snappymail', 'style');
 			SnappyMailHelper::startApp();
 			$response = new TemplateResponse('snappymail', 'index', [
 				'snappymail-iframe-url' => SnappyMailHelper::normalizeUrl(SnappyMailHelper::getAppUrl())
@@ -50,12 +51,7 @@ class PageController extends Controller
 			return $response;
 		}
 
-		// \OC::$server->getNavigationManager()->setActiveEntry('snappymail'); // <<<<<<<<<<<< Comment this
+		$this->navigationManager->setActiveEntry('snappymail');
-        $nav->setActiveEntry('snappymail');  // <<<<<<<<<<<< add this
-
-// SnappyMail Nextcoud 32 compatibility workaound - END
-
-		\OCP\Util::addStyle('snappymail', 'embed');
 
 		SnappyMailHelper::startApp();
 		$oConfig = \RainLoop\Api::Config();
@@ -69,6 +65,8 @@ class PageController extends Controller
 		$csp = new ContentSecurityPolicy();
 		$sNonce = $csp->getSnappyMailNonce();
 
+		$cssLink = \RainLoop\Utils::WebStaticPath('css/'.($bAdmin?'admin':'app').$sAppCssMin.'.css');
+
 		$params = [
 			'Admin' => $bAdmin ? 1 : 0,
 			'LoadingDescriptionEsc' => \htmlspecialchars($oConfig->Get('webmail', 'loading_description', 'SnappyMail'), ENT_QUOTES|ENT_IGNORE, 'UTF-8'),
@@ -81,16 +79,10 @@ class PageController extends Controller
 				'/\\s*([:;{},]+)\\s*/s',
 				'$1',
 				$oActions->compileCss($oActions->GetTheme($bAdmin), $bAdmin)
-			)
+			),
+			'CssLink' => $cssLink
 		];
 
-//		\OCP\Util::addScript('snappymail', '../app/snappymail/v/'.APP_VERSION.'/static/js'.($sAppJsMin ? '/min' : '').'/boot'.$sAppJsMin);
-
-		// Nextcloud html encodes, so addHeader('style') is not possible
-//		\OCP\Util::addHeader('style', ['id'=>'app-boot-css'], \file_get_contents(APP_VERSION_ROOT_PATH.'static/css/boot'.$sAppCssMin.'.css'));
-		\OCP\Util::addHeader('link', ['type'=>'text/css','rel'=>'stylesheet','href'=>\RainLoop\Utils::WebStaticPath('css/'.($bAdmin?'admin':'app').$sAppCssMin.'.css')], '');
-//		\OCP\Util::addHeader('style', ['id'=>'app-theme-style','data-href'=>$params['BaseAppThemeCssLink']], $params['BaseAppThemeCss']);
-
 		$response = new TemplateResponse('snappymail', 'index_embed', $params);
 
 		$response->setContentSecurityPolicy($csp);

integrations/nextcloud/snappymail/lib/Migration/InstallStep.php

@@ -6,7 +6,8 @@ use OCA\SnappyMail\AppInfo\Application;
 use OCP\IConfig;
 use OCP\Migration\IOutput;
 use OCP\Migration\IRepairStep;
-use OCP\ILogger;
+use Psr\Log\LoggerInterface;
+use OCP\App\IAppManager;
 
 /**
  * Note: this is not run at install, but when:
@@ -15,6 +16,16 @@ use OCP\ILogger;
  */
 class InstallStep implements IRepairStep
 {
+	private IAppManager $appManager;
+	private IConfig $config;
+	private LoggerInterface $logger;
+
+	public function __construct(IAppManager $appManager, IConfig $config, LoggerInterface $logger) {
+		$this->appManager = $appManager;
+		$this->config = $config;
+		$this->logger = $logger;
+	}
+
 	public function getName() {
 		return 'Setup SnappyMail';
 	}
@@ -53,7 +64,7 @@ class InstallStep implements IRepairStep
 
 		if (!$oConfig->Get('webmail', 'app_path')) {
 			$output->info('Set config [webmail]app_path');
-			$oConfig->Set('webmail', 'app_path', \OC::$server->getAppManager()->getAppWebPath('snappymail') . '/app/');
+			$oConfig->Set('webmail', 'app_path', $this->appManager->getAppWebPath('snappymail') . '/app/');
 			$oConfig->Set('webmail', 'allow_languages_on_settings', false);
 			$oConfig->Set('login', 'allow_languages_on_login', false);
 			$bSave = true;
@@ -116,9 +127,7 @@ class InstallStep implements IRepairStep
 		// ex: php occ config:app:set snappymail custom_config_file --value="/path/to/config.php"
 		// https://github.com/the-djmaze/snappymail/pull/1197
 		try {
-			/** @var IConfig $ncConfig */
+			$customConfigFile = $this->config->getAppValue(Application::APP_ID, 'custom_config_file');
-			$ncConfig = \OC::$server->get(IConfig::class);
-			$customConfigFile = $ncConfig->getAppValue(Application::APP_ID, 'custom_config_file');
 			if ($customConfigFile) {
 				$output->info("Load custom config: {$customConfigFile}");
 				if (!\str_contains($customConfigFile, ':') && \is_readable($customConfigFile)) {
@@ -129,9 +138,7 @@ class InstallStep implements IRepairStep
 			}
 		} catch (\Throwable $e) {
 			$output->warning("custom config error: " . $e->getMessage());
-			/** @var \Psr\Log\LoggerInterface $logger */
+			$this->logger->error("custom config error: " . $e->getMessage());
-			$logger = \OC::$server->get(\Psr\Log\LoggerInterface::class);
-			$logger->error("custom config error: " . $e->getMessage());
 		}
 	}
 }

integrations/nextcloud/snappymail/lib/Settings/AdminSettings.php

@@ -5,14 +5,32 @@ use OCA\SnappyMail\Util\SnappyMailHelper;
 use OCP\AppFramework\Http\TemplateResponse;
 use OCP\IConfig;
 use OCP\Settings\ISettings;
+use OCP\IUserSession;
+use OCP\IGroupManager;
+use OCP\IURLGenerator;
+use OCP\App\IAppManager;
+use OCP\Util;
 
 class AdminSettings implements ISettings
 {
-	private $config;
+	private IConfig $config;
+	private IUserSession $userSession;
+	private IGroupManager $groupManager;
+	private IURLGenerator $urlGenerator;
+	private IAppManager $appManager;
 
-	public function __construct(IConfig $config)
+	public function __construct(
-	{
+		IConfig $config,
+		IUserSession $userSession,
+		IGroupManager $groupManager,
+		IURLGenerator $urlGenerator,
+		IAppManager $appManager
+	) {
 		$this->config = $config;
+		$this->userSession = $userSession;
+		$this->groupManager = $groupManager;
+		$this->urlGenerator = $urlGenerator;
+		$this->appManager = $appManager;
 	}
 
 	public function getForm()
@@ -30,12 +48,15 @@ class AdminSettings implements ISettings
 			$v = $this->config->getAppValue('snappymail', $k);
 			$parameters[$k] = $v;
 		}
-		$uid = \OC::$server->getUserSession()->getUser()->getUID();
+
-		if (\OC_User::isAdminUser($uid)) {
+		$user = $this->userSession->getUser();
+		$uid = $user ? $user->getUID() : null;
+
+		if ($uid && $this->groupManager->isAdmin($uid)) {
 //			$parameters['snappymail-admin-panel-link'] = SnappyMailHelper::getAppUrl().'?admin';
 			SnappyMailHelper::loadApp();
 			$parameters['snappymail-admin-panel-link'] =
-				\OC::$server->getURLGenerator()->linkToRoute('snappymail.page.index')
+				$this->urlGenerator->linkToRoute('snappymail.page.index')
 				. '?' . \RainLoop\Api::Config()->Get('security', 'admin_panel_key', 'admin');
 		}
 
@@ -49,7 +70,7 @@ class AdminSettings implements ISettings
 		$parameters['snappymail-admin-password'] = $sPassword;
 
 		$parameters['can-import-rainloop'] = $sPassword && \is_dir(
-			\rtrim(\trim(\OC::$server->getSystemConfig()->getValue('datadirectory', '')), '\\/')
+			\rtrim(\trim($this->config->getSystemValue('datadirectory', '')), '\\/')
 			. '/rainloop-storage'
 		);
 
@@ -65,7 +86,7 @@ class AdminSettings implements ISettings
 		// Prevent "Failed loading /nextcloud/snappymail/v/2.N.N/static/js/min/libs.min.js"
 		$app_path = $oConfig->Get('webmail', 'app_path');
 		if (!$app_path) {
-			$app_path = \OC::$server->getAppManager()->getAppWebPath('snappymail') . '/app/';
+			$app_path = $this->appManager->getAppWebPath('snappymail') . '/app/';
 			$oConfig->Set('webmail', 'app_path', $app_path);
 			$oConfig->Set('webmail', 'theme', 'NextcloudV25+');
 			$oConfig->Save();
@@ -73,7 +94,6 @@ class AdminSettings implements ISettings
 		$parameters['snappymail-app_path'] = $oConfig->Get('webmail', 'app_path', false);
 		$parameters['snappymail-nc-lang'] = !$oConfig->Get('webmail', 'allow_languages_on_settings', true);
 
-		\OCP\Util::addScript('snappymail', 'snappymail');
 		return new TemplateResponse('snappymail', 'admin-local', $parameters);
 	}
 

integrations/nextcloud/snappymail/lib/Util/SnappyMailHelper.php

@@ -2,6 +2,14 @@
 
 namespace OCA\SnappyMail\Util;
 
+use OCP\Server;
+use OCP\IUserSession;
+use OCP\IConfig;
+use OCP\IURLGenerator;
+use OCP\App\IAppManager;
+use OCP\ISession;
+use OCP\IGroupManager;
+
 class SnappyMailResponse extends \OCP\AppFramework\Http\Response
 {
 	public function render(): string
@@ -56,8 +64,10 @@ class SnappyMailHelper
 		try {
 			$oActions = \RainLoop\Api::Actions();
 			if (isset($_GET[$oConfig->Get('security', 'admin_panel_key', 'admin')])) {
+				$user = Server::get(IUserSession::class)->getUser();
 				if ($oConfig->Get('security', 'allow_admin_panel', true)
-				&& \OC_User::isAdminUser(\OC::$server->getUserSession()->getUser()->getUID())
+				&& $user
+				&& Server::get(IGroupManager::class)->isAdmin($user->getUID())
 				&& !$oActions->IsAdminLoggined(false)
 				) {
 					$sRand = \MailSo\Base\Utils::Sha1Rand();
@@ -79,7 +89,7 @@ class SnappyMailHelper
 //				file_get_contents(\OC::$SERVERROOT . 'config/config.php');
 //				$CONFIG['version']
 				if (24 < $OC_Version[0]) {
-					$ocSession = \OC::$server->getSession();
+					$ocSession = Server::get(ISession::class);
 					$ocSession->reopen();
 					if (!$doLogin && $ocSession['snappymail-uid'] && $ocSession['snappymail-uid'] != $aCredentials[0]) {
 						// UID changed, Impersonate plugin probably active
@@ -92,7 +102,7 @@ class SnappyMailHelper
 				if ($doLogin && $aCredentials[1] && $aCredentials[2]) {
 					$isOIDC = \str_starts_with($aCredentials[2], 'oidc_login|');
 					try {
-						$ocSession = \OC::$server->getSession();
+						$ocSession = Server::get(ISession::class);
 						$oAccount = $oActions->LoginProcess($aCredentials[1], $aCredentials[2]);
 						if (!$isOIDC && $oAccount
 						 && $oConfig->Get('login', 'sign_me_auto', \RainLoop\Enumerations\SignMeType::DefaultOff) === \RainLoop\Enumerations\SignMeType::DefaultOn
@@ -102,10 +112,14 @@ class SnappyMailHelper
 					} catch (\Throwable $e) {
 						// Login failure, reset password to prevent more attempts
 						if (!$isOIDC) {
-							$sUID = \OC::$server->getUserSession()->getUser()->getUID();
+							$user = Server::get(IUserSession::class)->getUser();
-							\OC::$server->getSession()['snappymail-passphrase'] = '';
+							$sUID = $user ? $user->getUID() : null;
-							\OC::$server->getConfig()->setUserValue($sUID, 'snappymail', 'passphrase', '');
+							if ($sUID) {
-							\SnappyMail\Log::error('Nextcloud', $e->getMessage());
+								$session = Server::get(ISession::class);
+								$session['snappymail-passphrase'] = '';
+								Server::get(IConfig::class)->setUserValue($sUID, 'snappymail', 'passphrase', '');
+								\SnappyMail\Log::error('Nextcloud', $e->getMessage());
+							}
 						}
 					}
 				}
@@ -127,12 +141,12 @@ class SnappyMailHelper
 	// https://apps.nextcloud.com/apps/oidc_login
 	public static function isOIDCLogin() : bool
 	{
-		$config = \OC::$server->getConfig();
+		$config = Server::get(IConfig::class);
 		if ($config->getAppValue('snappymail', 'snappymail-autologin-oidc', false)) {
 			// Check if the OIDC Login app is enabled
-			if (\OC::$server->getAppManager()->isEnabledForUser('oidc_login')) {
+			if (Server::get(IAppManager::class)->isEnabledForUser('oidc_login')) {
 				// Check if session is an OIDC Login
-				$ocSession = \OC::$server->getSession();
+				$ocSession = Server::get(ISession::class);
 				if ($ocSession->get('is_oidc')) {
 					// IToken->getPassword() ???
 					if ($ocSession->get('oidc_access_token')) {
@@ -151,9 +165,14 @@ class SnappyMailHelper
 
 	private static function getLoginCredentials() : array
 	{
-		$sUID = \OC::$server->getUserSession()->getUser()->getUID();
+		$user = Server::get(IUserSession::class)->getUser();
-		$config = \OC::$server->getConfig();
+		$sUID = $user ? $user->getUID() : '';
-		$ocSession = \OC::$server->getSession();
+		$config = Server::get(IConfig::class);
+		$ocSession = Server::get(ISession::class);
+
+		if (!$sUID) {
+			return ['', '', ''];
+		}
 
 		// If the user has set credentials for SnappyMail in their personal settings,
 		// this has the first priority.
@@ -171,6 +190,7 @@ class SnappyMailHelper
 
 		// If the current user ID is identical to login ID (not valid when using account switching),
 		// this has the second priority.
+		// Note: $ocSession array access is supported but deprecated? ISession implements ArrayAccess.
 		if ($ocSession['snappymail-nc-uid'] == $sUID) {
 
 			// If OpenID Connect (OIDC) is enabled and used for login, use this.
@@ -204,7 +224,7 @@ class SnappyMailHelper
 
 	public static function getAppUrl() : string
 	{
-		return \OC::$server->getURLGenerator()->linkToRoute('snappymail.page.appGet');
+		return Server::get(IURLGenerator::class)->linkToRoute('snappymail.page.appGet');
 	}
 
 	public static function normalizeUrl(string $sUrl) : string

integrations/nextcloud/snappymail/templates/admin-local.php

@@ -1,3 +1,4 @@
+<?php script('snappymail', 'snappymail'); ?>
 <div class="section">
 	<form class="snappymail" action="admin.php" method="post">
 		<input type="hidden" name="requesttoken" value="<?php echo $_['requesttoken'] ?>" id="requesttoken">

integrations/nextcloud/snappymail/templates/index.php

@@ -1,3 +1,5 @@
-<iframe id="rliframe" style="border: none; width: 100%; min-height: 100%; position: relative;" tabindex="-1" frameborder="0" src="<?php echo $_['snappymail-iframe-url']; ?>"></iframe>
 <?php
-// OCP\Util::addScript('snappymail', 'resize');
+script('snappymail', 'snappymail');
+style('snappymail', 'style');
+?>
+<iframe id="rliframe" style="border: none; width: 100%; min-height: 100%; position: relative;" tabindex="-1" frameborder="0" src="<?php echo $_['snappymail-iframe-url']; ?>"></iframe>

integrations/nextcloud/snappymail/templates/index_embed.php

@@ -1,3 +1,5 @@
+<?php style('snappymail', 'embed'); ?>
+<link type="text/css" rel="stylesheet" href="<?php echo $_['CssLink']; ?>" />
 <style id="app-boot-css"><?php echo $_['BaseAppBootCss']; ?></style>
 <style id="app-theme-style"><?php echo $_['BaseAppThemeCss']; ?></style>
 <div id="rl-app" data-admin="<?php echo $_['Admin']; ?>" spellcheck="false">