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<?php |
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/** |
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* Headers controller file. |
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* |
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* @package Controller |
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* |
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* @copyright YetiForce Sp. z o.o |
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* @license YetiForce Public License 3.0 (licenses/LicenseEN.txt or yetiforce.com) |
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* @author Mariusz Krzaczkowski <[email protected]> |
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*/ |
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namespace App\Controller; |
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/** |
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* Headers controller class. |
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*/ |
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class Headers |
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{ |
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/** |
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* Default header values. |
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* |
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* @var string[] |
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*/ |
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protected $headers = [ |
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'Access-Control-Allow-Methods' => 'GET, POST', |
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'Access-Control-Allow-Origin' => '*', |
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'Expires' => '-', |
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'Last-Modified' => '-', |
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'Pragma' => 'no-cache', |
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'Cache-Control' => 'private, no-cache, no-store, must-revalidate, post-check=0, pre-check=0', |
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'Content-Type' => 'text/html; charset=UTF-8', |
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'Referrer-Policy' => 'no-referrer', |
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'Permissions-Policy' => 'fullscreen=(self), camera=(), geolocation=()', |
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'Cross-Origin-Embedder-Policy' => 'require-corp', |
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'Cross-Origin-Opener-Policy: ' => 'same-origin', |
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'Cross-Origin-Resource-Policy: ' => 'same-origin', |
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'Expect-Ct' => 'enforce; max-age=3600', |
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'X-Frame-Options' => 'sameorigin', |
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'X-Xss-Protection' => '1; mode=block', |
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'X-Content-Type-Options' => 'nosniff', |
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'X-Robots-Tag' => 'none', |
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'X-Permitted-Cross-Domain-Policies' => 'none', |
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]; |
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/** |
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* Default CSP header values. |
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* |
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* @var string[] |
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*/ |
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public $csp = [ |
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'default-src' => '\'self\' blob:', |
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'img-src' => '\'self\' data:', |
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'script-src' => '\'self\' \'unsafe-inline\' blob:', |
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'form-action' => '\'self\'', |
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'frame-ancestors' => '\'self\'', |
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'frame-src' => '\'self\' mailto: tel:', |
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'style-src' => '\'self\' \'unsafe-inline\'', |
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'connect-src' => '\'self\'', |
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]; |
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/** |
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* Headers to delete. |
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* |
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* @var string[] |
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*/ |
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protected $headersToDelete = ['X-Powered-By', 'Server']; |
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/** |
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* Headers instance.. |
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* |
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* @var self |
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*/ |
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public static $instance; |
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/** |
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* Get headers instance. |
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* |
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* @return \self |
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*/ |
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public static function getInstance() |
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{ |
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if (isset(self::$instance)) { |
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return self::$instance; |
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} |
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if (!\App\Session::get('CSP_TOKEN')) { |
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self::generateCspToken(); |
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} |
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return self::$instance = new self(); |
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} |
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/** |
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* Construct, loads default headers depending on the browser and environment. |
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*/ |
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public function __construct() |
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{ |
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$browser = \App\RequestUtil::getBrowserInfo(); |
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$this->headers['Expires'] = gmdate('D, d M Y H:i:s') . ' GMT'; |
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$this->headers['Last-Modified'] = gmdate('D, d M Y H:i:s') . ' GMT'; |
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if ($browser->ie) { |
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$this->headers['X-Ua-Compatible'] = 'IE=11,edge'; |
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if ($browser->https) { |
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$this->headers['Pragma'] = 'private'; |
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$this->headers['Cache-Control'] = 'private, must-revalidate'; |
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} |
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} |
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if ($browser->https) { |
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$this->headers['Strict-Transport-Security'] = 'max-age=31536000; includeSubDomains; preload'; |
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} |
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if (\App\Config::$cspHeaderActive ?? false) { |
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$this->loadCsp(); |
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} |
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if ($keys = (\App\Config::$hpkpKeysHeader ?? [])) { |
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$this->headers['Public-Key-Pins'] = 'pin-sha256="' . implode('"; pin-sha256="', $keys) . '"; max-age=10000;'; |
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} |
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if ($nonce = \App\Session::get('CSP_TOKEN')) { |
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$this->csp['script-src'] .= " 'nonce-{$nonce}'"; |
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} |
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$this->headers['Access-Control-Allow-Origin'] = \App\Config::$portalUrl; |
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} |
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/** |
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* Set header. |
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* |
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* @param string $key |
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* @param string $value |
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*/ |
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public function setHeader(string $key, string $value) |
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{ |
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$this->headers[$key] = $value; |
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} |
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/** |
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* Send headers. |
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* |
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* @return void |
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*/ |
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public function send(): void |
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{ |
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if (headers_sent()) { |
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return; |
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} |
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foreach ($this->getHeaders() as $value) { |
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header($value); |
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} |
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foreach ($this->headersToDelete as $name) { |
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header_remove($name); |
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} |
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} |
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/** |
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* Get headers string. |
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* |
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* @return string[] |
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*/ |
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public function getHeaders(): array |
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{ |
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if (\App\Config::$cspHeaderActive ?? false) { |
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$this->headers['Content-Security-Policy'] = $this->getCspHeader(); |
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} |
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$return = []; |
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foreach ($this->headers as $name => $value) { |
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$return[] = "$name: $value"; |
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} |
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return $return; |
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} |
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/** |
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* Load CSP directive. |
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* |
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* @return void |
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*/ |
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public function loadCsp() |
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{ |
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} |
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/** |
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* Get CSP headers string. |
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* |
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* @return string |
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*/ |
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public function getCspHeader(): string |
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{ |
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$scp = ''; |
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foreach ($this->csp as $key => $value) { |
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$scp .= "$key $value; "; |
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} |
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return $scp; |
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} |
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/** |
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* Generate Content Security Policy token. |
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* |
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* @return void |
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*/ |
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public static function generateCspToken(): void |
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{ |
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\App\Session::set('CSP_TOKEN', \base64_encode(\random_bytes(16))); |
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} |
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} |
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YetiForceCompany /
YetiForcePortal2
This check compares the return type specified in the
@returnannotation of a function or method doc comment with the types returned by the function and raises an issue if they mismatch.