Draft code to run SnappyMail inside Nextcloud without iframe for

Author: the-djmaze

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

@@ -16,6 +16,9 @@ class PageController extends Controller
 	 */
 	public function index()
 	{
+		// Uncomment to test without using an iframe
+//		return static::index_embed();
+
 		\OC::$server->getNavigationManager()->setActiveEntry('snappymail');
 
 		\OCP\Util::addStyle('snappymail', 'style');
@@ -72,5 +75,61 @@ public function appPost()
 	{
 		SnappyMailHelper::startApp();
 	}
-}
 
+	/**
+	 * Draft code to run without using an iframe
+	 */
+	private static function index_embed()
+	{
+		\OC::$server->getNavigationManager()->setActiveEntry('snappymail');
+
+		\OCP\Util::addStyle('snappymail', 'style');
+
+		SnappyMailHelper::startApp(true);
+		$webPath = \OC::$server->getAppManager()->getAppWebPath('snappymail') . '/app';
+		$oConfig = \RainLoop\Api::Config();
+		$oActions = \RainLoop\Api::Actions();
+		$oHttp = \MailSo\Base\Http::SingletonInstance();
+		$oServiceActions = new \RainLoop\ServiceActions($oHttp, $oActions);
+		$sAppJsMin = $oConfig->Get('labs', 'use_app_debug_js', false) ? '' : '.min';
+		$sAppCssMin = $oConfig->Get('labs', 'use_app_debug_css', false) ? '' : '.min';
+		$sLanguage = $oActions->GetLanguage(false);
+
+		$sScriptNonce = \OC::$server->getContentSecurityPolicyNonceManager()->getNonce();
+//		$sScriptNonce = \SnappyMail\UUID::generate();
+//		\RainLoop\Service::setCSP($sScriptNonce);
+
+		$params = [
+			'LoadingDescriptionEsc' => \htmlspecialchars($oConfig->Get('webmail', 'loading_description', 'SnappyMail'), ENT_QUOTES|ENT_IGNORE, 'UTF-8'),
+			'BaseTemplates' => \RainLoop\Utils::ClearHtmlOutput($oServiceActions->compileTemplates(false)),
+			'BaseAppBootScript' => \str_replace(
+				'loadScript(`./?/',
+				'loadScript(`'.$webPath.'/?/',
+				\file_get_contents(APP_VERSION_ROOT_PATH.'static/js'.($sAppJsMin ? '/min' : '').'/boot'.$sAppJsMin.'.js')
+			),
+			'BaseAppBootScriptNonce' => $sScriptNonce,
+			'BaseLanguage' => $oActions->compileLanguage($sLanguage, false),
+		];
+
+		\OCP\Util::addHeader('style', ['id'=>'app-boot-css'], \file_get_contents(APP_VERSION_ROOT_PATH.'static/css/boot'.$sAppCssMin.'.css'));
+		\OCP\Util::addHeader('link', ['type'=>'text/css','rel'=>'stylesheet','href'=>\RainLoop\Utils::WebStaticPath('css/app'.$sAppCssMin.'.css')], '');
+		\OCP\Util::addHeader('style', ['id'=>'app-theme-style','data-href'=>$oActions->ThemeLink(false)],
+			\preg_replace(
+				'/\\s*([:;{},]+)\\s*/s',
+				'$1',
+				$oActions->compileCss($oActions->GetTheme(false), false)
+			));
+
+		$response = new TemplateResponse('snappymail', 'index_embed', $params);
+
+		$csp = new ContentSecurityPolicy();
+		$csp->addAllowedScriptDomain("'self'");
+		$csp->useStrictDynamic(true);
+		$csp->allowEvalScript(true); // $csp->addAllowedScriptDomain("'unsafe-eval'");
+		$csp->addAllowedStyleDomain("'self'");
+		$response->setContentSecurityPolicy($csp);
+
+		return $response;
+	}
+
+}

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

@@ -36,21 +36,23 @@ public static function startApp(bool $api = false)
 		if (!\class_exists('RainLoop\\Api')) {
 			if ($api) {
 				$_ENV['SNAPPYMAIL_INCLUDE_AS_API'] = true;
-			} else {
-				$_SERVER['SCRIPT_NAME'] = \OC::$server->getAppManager()->getAppWebPath('snappymail') . '/app/index.php';
 			}
 			$_ENV['SNAPPYMAIL_NEXTCLOUD'] = true;
+			$_SERVER['SCRIPT_NAME'] = \OC::$server->getAppManager()->getAppWebPath('snappymail') . '/app/index.php';
+
 			$sData = \rtrim(\trim(\OC::$server->getSystemConfig()->getValue('datadirectory', '')), '\\/').'/appdata_snappymail/';
 			if (\is_dir($sData)) {
 				\define('APP_DATA_FOLDER_PATH', $sData);
 			}
+
 			// Nextcloud the default spl_autoload_register() not working
 			\spl_autoload_register(function($sClassName){
 				$file = RAINLOOP_APP_LIBRARIES_PATH . \strtolower(\strtr($sClassName, '\\', DIRECTORY_SEPARATOR)) . '.php';
 				if (is_file($file)) {
 					include_once $file;
 				}
 			});
+
 			require_once \OC::$server->getAppManager()->getAppPath('snappymail') . '/app/index.php';
 		}
 	}

integrations/nextcloud/snappymail/templates/index_embed.php

@@ -0,0 +1,17 @@
+<div id="rl-app" data-admin="0" spellcheck="false">
+	<div id="rl-loading">
+		<div id="rl-loading-desc"><?php echo $_['LoadingDescriptionEsc']; ?></div>
+		<i class="icon-spinner"></i>
+	</div>
+	<div id="rl-loading-error" hidden="">An error occurred.<br>Please refresh the page and try again.</div>
+	<div id="rl-content" hidden="">
+		<div id="rl-left"></div>
+		<div id="rl-right"></div>
+	</div>
+	<div id="rl-popups"></div>
+	<?php echo $_['BaseTemplates']; ?>
+</div>
+<?php
+echo '
+	<script nonce="'.$_['BaseAppBootScriptNonce'].'" type="text/javascript">'.$_['BaseAppBootScript'].$_['BaseLanguage'].'</script>
+';

plugins/nextcloud/index.php

@@ -17,15 +17,7 @@ public function Init() : void
 			$this->addHook('filter.app-data', 'FilterAppData');
 			$this->addHook('json.attachments', 'SaveAttachments');
 
-			$sAppPath = \rtrim(\trim(\OC::$server->getAppManager()->getAppWebPath()), '\\/').'/app/';
-			if (!$sAppPath) {
-				$sUrl = \MailSo\Base\Http::SingletonInstance()->GetUrl();
-				if (\str_contains($sUrl, '/index.php/apps/snappymail/')) {
-					$sAppPath = \preg_replace('/\/index\.php\/apps\/snappymail.+$/',
-						'/apps/snappymail/app/', $sUrl);
-				}
-			}
-			$_SERVER['SCRIPT_NAME'] = $sAppPath;
+			$this->addJs('js/attachments.js');
 		}
 	}