nextcloud / server

lib/private/TemplateLayout.php

Indentation +376 added lines, -376 removed lines

@@ -35,380 +35,380 @@
 use OCP\Util;
 
 class TemplateLayout {
-	private static string $versionHash = '';
-	/** @var string[] */
-	private static array $cacheBusterCache = [];
-
-	public static ?CSSResourceLocator $cssLocator = null;
-	public static ?JSResourceLocator $jsLocator = null;
-
-	public function __construct(
-		private IConfig $config,
-		private IAppManager $appManager,
-		private InitialStateService $initialState,
-		private INavigationManager $navigationManager,
-		private ITemplateManager $templateManager,
-		private ServerVersion $serverVersion,
-	) {
-	}
-
-	public function getPageTemplate(string $renderAs, string $appId): ITemplate {
-		// Add fallback theming variables if not rendered as user
-		if ($renderAs !== TemplateResponse::RENDER_AS_USER) {
-			// TODO cache generated default theme if enabled for fallback if server is erroring ?
-			Util::addStyle('theming', 'default');
-		}
-
-		// Decide which page we show
-		switch ($renderAs) {
-			case TemplateResponse::RENDER_AS_USER:
-				$page = $this->templateManager->getTemplate('core', 'layout.user');
-				if (in_array(\OC_App::getCurrentApp(), ['settings','admin', 'help']) !== false) {
-					$page->assign('bodyid', 'body-settings');
-				} else {
-					$page->assign('bodyid', 'body-user');
-				}
-
-				$this->initialState->provideInitialState('core', 'active-app', $this->navigationManager->getActiveEntry());
-				$this->initialState->provideInitialState('core', 'apps', array_values($this->navigationManager->getAll()));
-
-				if ($this->config->getSystemValueBool('unified_search.enabled', false) || !$this->config->getSystemValueBool('enable_non-accessible_features', true)) {
-					$this->initialState->provideInitialState('unified-search', 'limit-default', (int)$this->config->getAppValue('core', 'unified-search.limit-default', (string)SearchQuery::LIMIT_DEFAULT));
-					$this->initialState->provideInitialState('unified-search', 'min-search-length', (int)$this->config->getAppValue('core', 'unified-search.min-search-length', (string)1));
-					$this->initialState->provideInitialState('unified-search', 'live-search', $this->config->getAppValue('core', 'unified-search.live-search', 'yes') === 'yes');
-					Util::addScript('core', 'legacy-unified-search', 'core');
-				} else {
-					Util::addScript('core', 'unified-search', 'core');
-				}
-
-				// Set logo link target
-				$logoUrl = $this->config->getSystemValueString('logo_url', '');
-				$page->assign('logoUrl', $logoUrl);
-
-				// Set default entry name
-				$defaultEntryId = $this->navigationManager->getDefaultEntryIdForUser();
-				$defaultEntry = $this->navigationManager->get($defaultEntryId);
-				$page->assign('defaultAppName', $defaultEntry['name'] ?? '');
-
-				// Add navigation entry
-				$page->assign('application', '');
-				$page->assign('appid', $appId);
-
-				$navigation = $this->navigationManager->getAll();
-				$page->assign('navigation', $navigation);
-				$settingsNavigation = $this->navigationManager->getAll('settings');
-				$this->initialState->provideInitialState('core', 'settingsNavEntries', $settingsNavigation);
-
-				foreach ($navigation as $entry) {
-					if ($entry['active']) {
-						$page->assign('application', $entry['name']);
-						break;
-					}
-				}
-
-				foreach ($settingsNavigation as $entry) {
-					if ($entry['active']) {
-						$page->assign('application', $entry['name']);
-						break;
-					}
-				}
-
-				$user = Server::get(IUserSession::class)->getUser();
-
-				if ($user === null) {
-					$page->assign('user_uid', false);
-					$page->assign('user_displayname', false);
-					$page->assign('userAvatarSet', false);
-					$page->assign('userStatus', false);
-				} else {
-					$page->assign('user_uid', $user->getUID());
-					$page->assign('user_displayname', $user->getDisplayName());
-					$page->assign('userAvatarSet', true);
-					$page->assign('userAvatarVersion', $this->config->getUserValue($user->getUID(), 'avatar', 'version', 0));
-				}
-				break;
-			case TemplateResponse::RENDER_AS_ERROR:
-				$page = $this->templateManager->getTemplate('core', 'layout.guest', '', false);
-				$page->assign('bodyid', 'body-login');
-				$page->assign('user_displayname', '');
-				$page->assign('user_uid', '');
-				break;
-			case TemplateResponse::RENDER_AS_GUEST:
-				$page = $this->templateManager->getTemplate('core', 'layout.guest');
-				Util::addStyle('guest');
-				$page->assign('bodyid', 'body-login');
-
-				$userDisplayName = false;
-				$user = Server::get(IUserSession::class)->getUser();
-				if ($user) {
-					$userDisplayName = $user->getDisplayName();
-				}
-
-				$page->assign('enabledThemes', []);
-				if ($this->appManager->isEnabledForUser('theming') && class_exists('\OCA\Theming\Service\ThemesService')) {
-					$themesService = Server::get(\OCA\Theming\Service\ThemesService::class);
-					$page->assign('enabledThemes', $themesService->getEnabledThemes());
-				}
-
-				$page->assign('user_displayname', $userDisplayName);
-				$page->assign('user_uid', \OC_User::getUser());
-				break;
-			case TemplateResponse::RENDER_AS_PUBLIC:
-				$page = $this->templateManager->getTemplate('core', 'layout.public');
-				$page->assign('appid', $appId);
-				$page->assign('bodyid', 'body-public');
-
-				// Set logo link target
-				$logoUrl = $this->config->getSystemValueString('logo_url', '');
-				$page->assign('logoUrl', $logoUrl);
-
-				$subscription = Server::get(IRegistry::class);
-				$showSimpleSignup = $this->config->getSystemValueBool('simpleSignUpLink.shown', true);
-				if ($showSimpleSignup && $subscription->delegateHasValidSubscription()) {
-					$showSimpleSignup = false;
-				}
-
-				$defaultSignUpLink = 'https://nextcloud.com/signup/';
-				$signUpLink = $this->config->getSystemValueString('registration_link', $defaultSignUpLink);
-				if ($signUpLink !== $defaultSignUpLink) {
-					$showSimpleSignup = true;
-				}
-
-				if ($this->appManager->isEnabledForUser('registration')) {
-					$urlGenerator = Server::get(IURLGenerator::class);
-					$signUpLink = $urlGenerator->getAbsoluteURL('/index.php/apps/registration/');
-				}
-
-				$page->assign('showSimpleSignUpLink', $showSimpleSignup);
-				$page->assign('signUpLink', $signUpLink);
-				break;
-			default:
-				$page = $this->templateManager->getTemplate('core', 'layout.base');
-				break;
-		}
-		// Send the language, locale, and direction to our layouts
-		$l10nFactory = Server::get(IFactory::class);
-		$lang = $l10nFactory->findLanguage();
-		$locale = $l10nFactory->findLocale($lang);
-		$direction = $l10nFactory->getLanguageDirection($lang);
-
-		$lang = str_replace('_', '-', $lang);
-		$page->assign('language', $lang);
-		$page->assign('locale', $locale);
-		$page->assign('direction', $direction);
-
-		// Set body data-theme
-		try {
-			$themesService = Server::get(\OCA\Theming\Service\ThemesService::class);
-		} catch (\OCP\AppFramework\QueryException) {
-			$themesService = null;
-		}
-
-		$page->assign('enabledThemes', $themesService?->getEnabledThemes() ?? []);
-
-		if ($this->config->getSystemValueBool('installed', false)) {
-			if (empty(self::$versionHash)) {
-				$v = $this->appManager->getAppInstalledVersions();
-				$v['core'] = implode('.', $this->serverVersion->getVersion());
-				self::$versionHash = substr(md5(implode(',', $v)), 0, 8);
-			}
-		} else {
-			self::$versionHash = md5('not installed');
-		}
-
-		// Add the js files
-		$jsFiles = self::findJavascriptFiles(Util::getScripts());
-		$page->assign('jsfiles', []);
-		if ($this->config->getSystemValueBool('installed', false) && $renderAs != TemplateResponse::RENDER_AS_ERROR) {
-			// this is on purpose outside of the if statement below so that the initial state is prefilled (done in the getConfig() call)
-			// see https://github.com/nextcloud/server/pull/22636 for details
-			$jsConfigHelper = new JSConfigHelper(
-				$this->serverVersion,
-				\OCP\Util::getL10N('lib'),
-				\OCP\Server::get(Defaults::class),
-				$this->appManager,
-				\OC::$server->getSession(),
-				\OC::$server->getUserSession()->getUser(),
-				$this->config,
-				\OC::$server->getGroupManager(),
-				\OC::$server->get(IniGetWrapper::class),
-				\OC::$server->getURLGenerator(),
-				\OC::$server->get(CapabilitiesManager::class),
-				\OCP\Server::get(IInitialStateService::class),
-				\OCP\Server::get(IProvider::class),
-				\OCP\Server::get(FilenameValidator::class),
-			);
-			$config = $jsConfigHelper->getConfig();
-			if (\OC::$server->getContentSecurityPolicyNonceManager()->browserSupportsCspV3()) {
-				$page->assign('inline_ocjs', $config);
-			} else {
-				$page->append('jsfiles', \OC::$server->getURLGenerator()->linkToRoute('core.OCJS.getConfig', ['v' => self::$versionHash]));
-			}
-		}
-		foreach ($jsFiles as $info) {
-			$web = $info[1];
-			$file = $info[2];
-			$page->append('jsfiles', $web . '/' . $file . $this->getVersionHashSuffix());
-		}
-
-		$request = \OCP\Server::get(IRequest::class);
-
-		try {
-			$pathInfo = $request->getPathInfo();
-		} catch (\Exception $e) {
-			$pathInfo = '';
-		}
-
-		// Do not initialise scss appdata until we have a fully installed instance
-		// Do not load scss for update, errors, installation or login page
-		if ($this->config->getSystemValueBool('installed', false)
-			&& !\OCP\Util::needUpgrade()
-			&& $pathInfo !== ''
-			&& !preg_match('/^\/login/', $pathInfo)
-			&& $renderAs !== TemplateResponse::RENDER_AS_ERROR
-		) {
-			$cssFiles = self::findStylesheetFiles(\OC_Util::$styles);
-		} else {
-			// If we ignore the scss compiler,
-			// we need to load the guest css fallback
-			Util::addStyle('guest');
-			$cssFiles = self::findStylesheetFiles(\OC_Util::$styles);
-		}
-
-		$page->assign('cssfiles', []);
-		$page->assign('printcssfiles', []);
-		$this->initialState->provideInitialState('core', 'versionHash', self::$versionHash);
-		foreach ($cssFiles as $info) {
-			$web = $info[1];
-			$file = $info[2];
-
-			if (str_ends_with($file, 'print.css')) {
-				$page->append('printcssfiles', $web . '/' . $file . $this->getVersionHashSuffix());
-			} else {
-				$suffix = $this->getVersionHashSuffix($web, $file);
-
-				if (!str_contains($file, '?v=')) {
-					$page->append('cssfiles', $web . '/' . $file . $suffix);
-				} else {
-					$page->append('cssfiles', $web . '/' . $file . '-' . substr($suffix, 3));
-				}
-			}
-		}
-
-		if ($request->isUserAgent([Request::USER_AGENT_CLIENT_IOS, Request::USER_AGENT_SAFARI, Request::USER_AGENT_SAFARI_MOBILE])) {
-			// Prevent auto zoom with iOS but still allow user zoom
-			// On chrome (and others) this does not work (will also disable user zoom)
-			$page->assign('viewport_maximum_scale', '1.0');
-		}
-
-		$page->assign('initialStates', $this->initialState->getInitialStates());
-
-		$page->assign('id-app-content', $renderAs === TemplateResponse::RENDER_AS_USER ? '#app-content' : '#content');
-		$page->assign('id-app-navigation', $renderAs === TemplateResponse::RENDER_AS_USER ? '#app-navigation' : null);
-
-		return $page;
-	}
-
-	protected function getVersionHashSuffix(string $path = '', string $file = ''): string {
-		if ($this->config->getSystemValueBool('debug', false)) {
-			// allows chrome workspace mapping in debug mode
-			return '';
-		}
-
-		if ($this->config->getSystemValueBool('installed', false) === false) {
-			// if not installed just return the version hash
-			return '?v=' . self::$versionHash;
-		}
-
-		$hash = false;
-		// Try the web-root first
-		if ($path !== '') {
-			$hash = $this->getVersionHashByPath($path);
-		}
-		// If not found try the file
-		if ($hash === false && $file !== '') {
-			$hash = $this->getVersionHashByPath($file);
-		}
-		// As a last resort we use the server version hash
-		if ($hash === false) {
-			$hash = self::$versionHash;
-		}
-
-		// The theming app is force-enabled thus the cache buster is always available
-		$themingSuffix = '-' . $this->config->getAppValue('theming', 'cachebuster', '0');
-
-		return '?v=' . $hash . $themingSuffix;
-	}
-
-	private function getVersionHashByPath(string $path): string|false {
-		if (array_key_exists($path, self::$cacheBusterCache) === false) {
-			// Not yet cached, so lets find the cache buster string
-			$appId = $this->getAppNamefromPath($path);
-			if ($appId === false) {
-				// No app Id could be guessed
-				return false;
-			}
-
-			if ($appId === 'core') {
-				// core is not a real app but the server itself
-				$hash = self::$versionHash;
-			} else {
-				$appVersion = $this->appManager->getAppVersion($appId);
-				// For shipped apps the app version is not a single source of truth, we rather also need to consider the Nextcloud version
-				if ($this->appManager->isShipped($appId)) {
-					$appVersion .= '-' . self::$versionHash;
-				}
-
-				$hash = substr(md5($appVersion), 0, 8);
-			}
-			self::$cacheBusterCache[$path] = $hash;
-		}
-
-		return self::$cacheBusterCache[$path];
-	}
-
-	public static function findStylesheetFiles(array $styles): array {
-		if (!self::$cssLocator) {
-			self::$cssLocator = \OCP\Server::get(CSSResourceLocator::class);
-		}
-		self::$cssLocator->find($styles);
-		return self::$cssLocator->getResources();
-	}
-
-	public function getAppNamefromPath(string $path): string|false {
-		if ($path !== '') {
-			$pathParts = explode('/', $path);
-			if ($pathParts[0] === 'css') {
-				// This is a scss request
-				return $pathParts[1];
-			} elseif ($pathParts[0] === 'core') {
-				return 'core';
-			}
-			return end($pathParts);
-		}
-		return false;
-	}
-
-	public static function findJavascriptFiles(array $scripts): array {
-		if (!self::$jsLocator) {
-			self::$jsLocator = \OCP\Server::get(JSResourceLocator::class);
-		}
-		self::$jsLocator->find($scripts);
-		return self::$jsLocator->getResources();
-	}
-
-	/**
-	 * Converts the absolute file path to a relative path from \OC::$SERVERROOT
-	 * @param string $filePath Absolute path
-	 * @return string Relative path
-	 * @throws \Exception If $filePath is not under \OC::$SERVERROOT
-	 */
-	public static function convertToRelativePath(string $filePath) {
-		$relativePath = explode(\OC::$SERVERROOT, $filePath);
-		if (count($relativePath) !== 2) {
-			throw new \Exception('$filePath is not under the \OC::$SERVERROOT');
-		}
-
-		return $relativePath[1];
-	}
+    private static string $versionHash = '';
+    /** @var string[] */
+    private static array $cacheBusterCache = [];
+
+    public static ?CSSResourceLocator $cssLocator = null;
+    public static ?JSResourceLocator $jsLocator = null;
+
+    public function __construct(
+        private IConfig $config,
+        private IAppManager $appManager,
+        private InitialStateService $initialState,
+        private INavigationManager $navigationManager,
+        private ITemplateManager $templateManager,
+        private ServerVersion $serverVersion,
+    ) {
+    }
+
+    public function getPageTemplate(string $renderAs, string $appId): ITemplate {
+        // Add fallback theming variables if not rendered as user
+        if ($renderAs !== TemplateResponse::RENDER_AS_USER) {
+            // TODO cache generated default theme if enabled for fallback if server is erroring ?
+            Util::addStyle('theming', 'default');
+        }
+
+        // Decide which page we show
+        switch ($renderAs) {
+            case TemplateResponse::RENDER_AS_USER:
+                $page = $this->templateManager->getTemplate('core', 'layout.user');
+                if (in_array(\OC_App::getCurrentApp(), ['settings','admin', 'help']) !== false) {
+                    $page->assign('bodyid', 'body-settings');
+                } else {
+                    $page->assign('bodyid', 'body-user');
+                }
+
+                $this->initialState->provideInitialState('core', 'active-app', $this->navigationManager->getActiveEntry());
+                $this->initialState->provideInitialState('core', 'apps', array_values($this->navigationManager->getAll()));
+
+                if ($this->config->getSystemValueBool('unified_search.enabled', false) || !$this->config->getSystemValueBool('enable_non-accessible_features', true)) {
+                    $this->initialState->provideInitialState('unified-search', 'limit-default', (int)$this->config->getAppValue('core', 'unified-search.limit-default', (string)SearchQuery::LIMIT_DEFAULT));
+                    $this->initialState->provideInitialState('unified-search', 'min-search-length', (int)$this->config->getAppValue('core', 'unified-search.min-search-length', (string)1));
+                    $this->initialState->provideInitialState('unified-search', 'live-search', $this->config->getAppValue('core', 'unified-search.live-search', 'yes') === 'yes');
+                    Util::addScript('core', 'legacy-unified-search', 'core');
+                } else {
+                    Util::addScript('core', 'unified-search', 'core');
+                }
+
+                // Set logo link target
+                $logoUrl = $this->config->getSystemValueString('logo_url', '');
+                $page->assign('logoUrl', $logoUrl);
+
+                // Set default entry name
+                $defaultEntryId = $this->navigationManager->getDefaultEntryIdForUser();
+                $defaultEntry = $this->navigationManager->get($defaultEntryId);
+                $page->assign('defaultAppName', $defaultEntry['name'] ?? '');
+
+                // Add navigation entry
+                $page->assign('application', '');
+                $page->assign('appid', $appId);
+
+                $navigation = $this->navigationManager->getAll();
+                $page->assign('navigation', $navigation);
+                $settingsNavigation = $this->navigationManager->getAll('settings');
+                $this->initialState->provideInitialState('core', 'settingsNavEntries', $settingsNavigation);
+
+                foreach ($navigation as $entry) {
+                    if ($entry['active']) {
+                        $page->assign('application', $entry['name']);
+                        break;
+                    }
+                }
+
+                foreach ($settingsNavigation as $entry) {
+                    if ($entry['active']) {
+                        $page->assign('application', $entry['name']);
+                        break;
+                    }
+                }
+
+                $user = Server::get(IUserSession::class)->getUser();
+
+                if ($user === null) {
+                    $page->assign('user_uid', false);
+                    $page->assign('user_displayname', false);
+                    $page->assign('userAvatarSet', false);
+                    $page->assign('userStatus', false);
+                } else {
+                    $page->assign('user_uid', $user->getUID());
+                    $page->assign('user_displayname', $user->getDisplayName());
+                    $page->assign('userAvatarSet', true);
+                    $page->assign('userAvatarVersion', $this->config->getUserValue($user->getUID(), 'avatar', 'version', 0));
+                }
+                break;
+            case TemplateResponse::RENDER_AS_ERROR:
+                $page = $this->templateManager->getTemplate('core', 'layout.guest', '', false);
+                $page->assign('bodyid', 'body-login');
+                $page->assign('user_displayname', '');
+                $page->assign('user_uid', '');
+                break;
+            case TemplateResponse::RENDER_AS_GUEST:
+                $page = $this->templateManager->getTemplate('core', 'layout.guest');
+                Util::addStyle('guest');
+                $page->assign('bodyid', 'body-login');
+
+                $userDisplayName = false;
+                $user = Server::get(IUserSession::class)->getUser();
+                if ($user) {
+                    $userDisplayName = $user->getDisplayName();
+                }
+
+                $page->assign('enabledThemes', []);
+                if ($this->appManager->isEnabledForUser('theming') && class_exists('\OCA\Theming\Service\ThemesService')) {
+                    $themesService = Server::get(\OCA\Theming\Service\ThemesService::class);
+                    $page->assign('enabledThemes', $themesService->getEnabledThemes());
+                }
+
+                $page->assign('user_displayname', $userDisplayName);
+                $page->assign('user_uid', \OC_User::getUser());
+                break;
+            case TemplateResponse::RENDER_AS_PUBLIC:
+                $page = $this->templateManager->getTemplate('core', 'layout.public');
+                $page->assign('appid', $appId);
+                $page->assign('bodyid', 'body-public');
+
+                // Set logo link target
+                $logoUrl = $this->config->getSystemValueString('logo_url', '');
+                $page->assign('logoUrl', $logoUrl);
+
+                $subscription = Server::get(IRegistry::class);
+                $showSimpleSignup = $this->config->getSystemValueBool('simpleSignUpLink.shown', true);
+                if ($showSimpleSignup && $subscription->delegateHasValidSubscription()) {
+                    $showSimpleSignup = false;
+                }
+
+                $defaultSignUpLink = 'https://nextcloud.com/signup/';
+                $signUpLink = $this->config->getSystemValueString('registration_link', $defaultSignUpLink);
+                if ($signUpLink !== $defaultSignUpLink) {
+                    $showSimpleSignup = true;
+                }
+
+                if ($this->appManager->isEnabledForUser('registration')) {
+                    $urlGenerator = Server::get(IURLGenerator::class);
+                    $signUpLink = $urlGenerator->getAbsoluteURL('/index.php/apps/registration/');
+                }
+
+                $page->assign('showSimpleSignUpLink', $showSimpleSignup);
+                $page->assign('signUpLink', $signUpLink);
+                break;
+            default:
+                $page = $this->templateManager->getTemplate('core', 'layout.base');
+                break;
+        }
+        // Send the language, locale, and direction to our layouts
+        $l10nFactory = Server::get(IFactory::class);
+        $lang = $l10nFactory->findLanguage();
+        $locale = $l10nFactory->findLocale($lang);
+        $direction = $l10nFactory->getLanguageDirection($lang);
+
+        $lang = str_replace('_', '-', $lang);
+        $page->assign('language', $lang);
+        $page->assign('locale', $locale);
+        $page->assign('direction', $direction);
+
+        // Set body data-theme
+        try {
+            $themesService = Server::get(\OCA\Theming\Service\ThemesService::class);
+        } catch (\OCP\AppFramework\QueryException) {
+            $themesService = null;
+        }
+
+        $page->assign('enabledThemes', $themesService?->getEnabledThemes() ?? []);
+
+        if ($this->config->getSystemValueBool('installed', false)) {
+            if (empty(self::$versionHash)) {
+                $v = $this->appManager->getAppInstalledVersions();
+                $v['core'] = implode('.', $this->serverVersion->getVersion());
+                self::$versionHash = substr(md5(implode(',', $v)), 0, 8);
+            }
+        } else {
+            self::$versionHash = md5('not installed');
+        }
+
+        // Add the js files
+        $jsFiles = self::findJavascriptFiles(Util::getScripts());
+        $page->assign('jsfiles', []);
+        if ($this->config->getSystemValueBool('installed', false) && $renderAs != TemplateResponse::RENDER_AS_ERROR) {
+            // this is on purpose outside of the if statement below so that the initial state is prefilled (done in the getConfig() call)
+            // see https://github.com/nextcloud/server/pull/22636 for details
+            $jsConfigHelper = new JSConfigHelper(
+                $this->serverVersion,
+                \OCP\Util::getL10N('lib'),
+                \OCP\Server::get(Defaults::class),
+                $this->appManager,
+                \OC::$server->getSession(),
+                \OC::$server->getUserSession()->getUser(),
+                $this->config,
+                \OC::$server->getGroupManager(),
+                \OC::$server->get(IniGetWrapper::class),
+                \OC::$server->getURLGenerator(),
+                \OC::$server->get(CapabilitiesManager::class),
+                \OCP\Server::get(IInitialStateService::class),
+                \OCP\Server::get(IProvider::class),
+                \OCP\Server::get(FilenameValidator::class),
+            );
+            $config = $jsConfigHelper->getConfig();
+            if (\OC::$server->getContentSecurityPolicyNonceManager()->browserSupportsCspV3()) {
+                $page->assign('inline_ocjs', $config);
+            } else {
+                $page->append('jsfiles', \OC::$server->getURLGenerator()->linkToRoute('core.OCJS.getConfig', ['v' => self::$versionHash]));
+            }
+        }
+        foreach ($jsFiles as $info) {
+            $web = $info[1];
+            $file = $info[2];
+            $page->append('jsfiles', $web . '/' . $file . $this->getVersionHashSuffix());
+        }
+
+        $request = \OCP\Server::get(IRequest::class);
+
+        try {
+            $pathInfo = $request->getPathInfo();
+        } catch (\Exception $e) {
+            $pathInfo = '';
+        }
+
+        // Do not initialise scss appdata until we have a fully installed instance
+        // Do not load scss for update, errors, installation or login page
+        if ($this->config->getSystemValueBool('installed', false)
+            && !\OCP\Util::needUpgrade()
+            && $pathInfo !== ''
+            && !preg_match('/^\/login/', $pathInfo)
+            && $renderAs !== TemplateResponse::RENDER_AS_ERROR
+        ) {
+            $cssFiles = self::findStylesheetFiles(\OC_Util::$styles);
+        } else {
+            // If we ignore the scss compiler,
+            // we need to load the guest css fallback
+            Util::addStyle('guest');
+            $cssFiles = self::findStylesheetFiles(\OC_Util::$styles);
+        }
+
+        $page->assign('cssfiles', []);
+        $page->assign('printcssfiles', []);
+        $this->initialState->provideInitialState('core', 'versionHash', self::$versionHash);
+        foreach ($cssFiles as $info) {
+            $web = $info[1];
+            $file = $info[2];
+
+            if (str_ends_with($file, 'print.css')) {
+                $page->append('printcssfiles', $web . '/' . $file . $this->getVersionHashSuffix());
+            } else {
+                $suffix = $this->getVersionHashSuffix($web, $file);
+
+                if (!str_contains($file, '?v=')) {
+                    $page->append('cssfiles', $web . '/' . $file . $suffix);
+                } else {
+                    $page->append('cssfiles', $web . '/' . $file . '-' . substr($suffix, 3));
+                }
+            }
+        }
+
+        if ($request->isUserAgent([Request::USER_AGENT_CLIENT_IOS, Request::USER_AGENT_SAFARI, Request::USER_AGENT_SAFARI_MOBILE])) {
+            // Prevent auto zoom with iOS but still allow user zoom
+            // On chrome (and others) this does not work (will also disable user zoom)
+            $page->assign('viewport_maximum_scale', '1.0');
+        }
+
+        $page->assign('initialStates', $this->initialState->getInitialStates());
+
+        $page->assign('id-app-content', $renderAs === TemplateResponse::RENDER_AS_USER ? '#app-content' : '#content');
+        $page->assign('id-app-navigation', $renderAs === TemplateResponse::RENDER_AS_USER ? '#app-navigation' : null);
+
+        return $page;
+    }
+
+    protected function getVersionHashSuffix(string $path = '', string $file = ''): string {
+        if ($this->config->getSystemValueBool('debug', false)) {
+            // allows chrome workspace mapping in debug mode
+            return '';
+        }
+
+        if ($this->config->getSystemValueBool('installed', false) === false) {
+            // if not installed just return the version hash
+            return '?v=' . self::$versionHash;
+        }
+
+        $hash = false;
+        // Try the web-root first
+        if ($path !== '') {
+            $hash = $this->getVersionHashByPath($path);
+        }
+        // If not found try the file
+        if ($hash === false && $file !== '') {
+            $hash = $this->getVersionHashByPath($file);
+        }
+        // As a last resort we use the server version hash
+        if ($hash === false) {
+            $hash = self::$versionHash;
+        }
+
+        // The theming app is force-enabled thus the cache buster is always available
+        $themingSuffix = '-' . $this->config->getAppValue('theming', 'cachebuster', '0');
+
+        return '?v=' . $hash . $themingSuffix;
+    }
+
+    private function getVersionHashByPath(string $path): string|false {
+        if (array_key_exists($path, self::$cacheBusterCache) === false) {
+            // Not yet cached, so lets find the cache buster string
+            $appId = $this->getAppNamefromPath($path);
+            if ($appId === false) {
+                // No app Id could be guessed
+                return false;
+            }
+
+            if ($appId === 'core') {
+                // core is not a real app but the server itself
+                $hash = self::$versionHash;
+            } else {
+                $appVersion = $this->appManager->getAppVersion($appId);
+                // For shipped apps the app version is not a single source of truth, we rather also need to consider the Nextcloud version
+                if ($this->appManager->isShipped($appId)) {
+                    $appVersion .= '-' . self::$versionHash;
+                }
+
+                $hash = substr(md5($appVersion), 0, 8);
+            }
+            self::$cacheBusterCache[$path] = $hash;
+        }
+
+        return self::$cacheBusterCache[$path];
+    }
+
+    public static function findStylesheetFiles(array $styles): array {
+        if (!self::$cssLocator) {
+            self::$cssLocator = \OCP\Server::get(CSSResourceLocator::class);
+        }
+        self::$cssLocator->find($styles);
+        return self::$cssLocator->getResources();
+    }
+
+    public function getAppNamefromPath(string $path): string|false {
+        if ($path !== '') {
+            $pathParts = explode('/', $path);
+            if ($pathParts[0] === 'css') {
+                // This is a scss request
+                return $pathParts[1];
+            } elseif ($pathParts[0] === 'core') {
+                return 'core';
+            }
+            return end($pathParts);
+        }
+        return false;
+    }
+
+    public static function findJavascriptFiles(array $scripts): array {
+        if (!self::$jsLocator) {
+            self::$jsLocator = \OCP\Server::get(JSResourceLocator::class);
+        }
+        self::$jsLocator->find($scripts);
+        return self::$jsLocator->getResources();
+    }
+
+    /**
+     * Converts the absolute file path to a relative path from \OC::$SERVERROOT
+     * @param string $filePath Absolute path
+     * @return string Relative path
+     * @throws \Exception If $filePath is not under \OC::$SERVERROOT
+     */
+    public static function convertToRelativePath(string $filePath) {
+        $relativePath = explode(\OC::$SERVERROOT, $filePath);
+        if (count($relativePath) !== 2) {
+            throw new \Exception('$filePath is not under the \OC::$SERVERROOT');
+        }
+
+        return $relativePath[1];
+    }
 }