router = $router; $this->cspEnabled = false; $this->cspNonce = null; $this->databaseRequired = true; $this->cspWhitelist = []; $this->domain = $this->getSettings()->getBaseUrl(); $this->logger = new Logger("Document", $this->getSQL()); $this->searchable = false; $this->languageModules = []; } public abstract function getTitle(): string; public function isSearchable(): bool { return $this->searchable; } public function getLogger(): Logger { return $this->logger; } public function getUser(): ?User { return $this->getContext()->getUser(); } public function getContext(): Context { return $this->router->getContext(); } public function getSQL(): ?SQL { return $this->getContext()->getSQL(); } public function getSettings(): Settings { return $this->getContext()->getSettings(); } public function getCSPNonce(): ?string { return $this->cspNonce; } public function isCSPEnabled(): bool { return $this->cspEnabled; } public function enableCSP() { $this->cspEnabled = true; $this->cspNonce = generateRandomString(16, "base62"); } public function getRouter(): Router { return $this->router; } public function addCSPWhitelist(string $path) { $urlParts = parse_url($path); if (!$urlParts || !isset($urlParts["host"])) { $this->cspWhitelist[] = $this->domain . $path; } else { $this->cspWhitelist[] = $path; } } public function sendHeaders() { if ($this->cspEnabled) { $cspWhiteList = implode(" ", $this->cspWhitelist); $csp = [ "default-src $cspWhiteList 'self'", "object-src 'none'", "base-uri 'self'", "style-src 'self' 'unsafe-inline'", "img-src 'self' 'unsafe-inline' data: https:;", "script-src $cspWhiteList 'nonce-$this->cspNonce'" ]; if ($this->getSettings()->isRecaptchaEnabled()) { $csp[] = "frame-src https://www.google.com/ 'self'"; } $compiledCSP = implode("; ", $csp); header("Content-Security-Policy: $compiledCSP;"); } } public abstract function getCode(array $params = []); public function load(array $params = []): string { if ($this->databaseRequired) { $sql = $this->getSQL(); if (is_null($sql)) { return "Database is not configured yet."; } else if (!$sql->isConnected()) { return "Database is not connected: " . $sql->getLastError(); } } $language = $this->getContext()->getLanguage(); foreach ($this->languageModules as $module) { $language->loadModule($module); } $code = $this->getCode($params); $this->sendHeaders(); return $code; } public function doSearch(SearchQuery $query, DocumentRoute $route): array { $code = $this->getCode(); $results = Searchable::searchHtml($code, $query); return array_map(function ($res) use ($route) { return new SearchResult($route->getUrl(), $this->getTitle(), $res["text"]); }, $results); } public function createScript($type, $src, $content = ""): Script { $script = new Script($type, $src, $content); if ($this->isCSPEnabled()) { $script->setNonce($this->getCSPNonce()); } return $script; } }