Refactor Security Class

app/Config/App.php

@@ -334,6 +334,8 @@ class App extends BaseConfig
 	 *
 	 * The token name.
 	 *
+	 * @deprecated Use `Config\Security` $tokenName property instead of using this property.
+	 *
 	 * @var string
 	 */
 	public $CSRFTokenName = 'csrf_test_name';
@@ -345,6 +347,8 @@ class App extends BaseConfig
 	 *
 	 * The header name.
 	 *
+	 * @deprecated Use `Config\Security` $headerName property instead of using this property.
+	 *
 	 * @var string
 	 */
 	public $CSRFHeaderName = 'X-CSRF-TOKEN';
@@ -356,6 +360,8 @@ class App extends BaseConfig
 	 *
 	 * The cookie name.
 	 *
+	 * @deprecated Use `Config\Security` $cookieName property instead of using this property.
+	 *
 	 * @var string
 	 */
 	public $CSRFCookieName = 'csrf_cookie_name';
@@ -367,6 +373,8 @@ class App extends BaseConfig
 	 *
 	 * The number in seconds the token should expire.
 	 *
+	 * @deprecated Use `Config\Security` $expire property instead of using this property.
+	 *
 	 * @var integer
 	 */
 	public $CSRFExpire = 7200;
@@ -378,6 +386,8 @@ class App extends BaseConfig
 	 *
 	 * Regenerate token on every submission?
 	 *
+	 * @deprecated Use `Config\Security` $regenerate property instead of using this property.
+	 *
 	 * @var boolean
 	 */
 	public $CSRFRegenerate = true;
@@ -389,6 +399,8 @@ class App extends BaseConfig
 	 *
 	 * Redirect to previous page with error on failure?
 	 *
+	 * @deprecated Use `Config\Security` $redirect property instead of using this property.
+	 *
 	 * @var boolean
 	 */
 	public $CSRFRedirect = true;
@@ -408,6 +420,8 @@ class App extends BaseConfig
 	 *
 	 * @see https://portswigger.net/web-security/csrf/samesite-cookies
 	 *
+	 * @deprecated Use `Config\Security` $samesite property instead of using this property.
+	 *
 	 * @var string
 	 */
 	public $CSRFSameSite = 'Lax';

app/Config/Security.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace Config;
+
+use CodeIgniter\Config\BaseConfig;
+
+class Security extends BaseConfig
+{
+	/**
+	 * --------------------------------------------------------------------------
+	 * CSRF Token Name
+	 * --------------------------------------------------------------------------
+	 *
+	 * Token name for Cross Site Request Forgery protection cookie.
+	 *
+	 * @var string
+	 */
+	public $tokenName = 'csrf_test_name';
+
+	/**
+	 * --------------------------------------------------------------------------
+	 * CSRF Header Name
+	 * --------------------------------------------------------------------------
+	 *
+	 * Token name for Cross Site Request Forgery protection cookie.
+	 *
+	 * @var string
+	 */
+	public $headerName = 'X-CSRF-TOKEN';
+
+	/**
+	 * --------------------------------------------------------------------------
+	 * CSRF Cookie Name
+	 * --------------------------------------------------------------------------
+	 *
+	 * Cookie name for Cross Site Request Forgery protection cookie.
+	 *
+	 * @var string
+	 */
+	 public $cookieName = 'csrf_cookie_name';
+
+	/**
+	 * --------------------------------------------------------------------------
+	 * CSRF Expires
+	 * --------------------------------------------------------------------------
+	 *
+	 * Expiration time for Cross Site Request Forgery protection cookie.
+	 *
+	 * Defaults to two hours (in seconds).
+	 *
+	 * @var integer
+	 */
+	public $expires = 7200;
+
+	/**
+	 * --------------------------------------------------------------------------
+	 * CSRF Regenerate
+	 * --------------------------------------------------------------------------
+	 *
+	 * Regenerate CSRF Token on every request.
+	 *
+	 * @var boolean
+	 */
+	public $regenerate = true;
+
+	/**
+	 * --------------------------------------------------------------------------
+	 * CSRF Redirect
+	 * --------------------------------------------------------------------------
+	 *
+	 * Redirect to previous page with error on failure.
+	 *
+	 * @var boolean
+	 */
+	public $redirect = true;
+
+	/**
+	 * --------------------------------------------------------------------------
+	 * CSRF SameSite
+	 * --------------------------------------------------------------------------
+	 *
+	 * Setting for CSRF SameSite cookie token.
+	 *
+	 * Allowed values are: None - Lax - Strict - ''.
+	 *
+	 * Defaults to `Lax` as recommended in this link:
+	 * @see https://portswigger.net/web-security/csrf/samesite-cookies
+	 *
+	 * @var string
+	 */
+	public $samesite = 'Lax';
+}

system/Common.php

@@ -233,9 +233,7 @@ function config(string $name, bool $getShared = true)
 	 */
 	function csrf_token(): string
 	{
-		$config = config(App::class);
-
-		return $config->CSRFTokenName;
+		return Services::security()->getTokenName();
 	}
 }
 
@@ -250,9 +248,7 @@ function csrf_token(): string
 	 */
 	function csrf_header(): string
 	{
-		$config = config(App::class);
-
-		return $config->CSRFHeaderName;
+		return Services::security()->getHeaderName();
 	}
 }
 
@@ -267,9 +263,7 @@ function csrf_header(): string
 	 */
 	function csrf_hash(): string
 	{
-		$security = Services::security(null, true);
-
-		return $security->getCSRFHash();
+		return Services::security()->getHash();
 	}
 }
 

system/Config/Services.php

@@ -677,7 +677,7 @@ public static function security(App $config = null, bool $getShared = true)
 			return static::getSharedInstance('security', $config);
 		}
 
-		$config = $config ?? config('App');
+		$config = $config ?? config('Security') ?? config('App');
 
 		return new Security($config);
 	}
@@ -859,6 +859,4 @@ public static function typography(bool $getShared = true)
 
 		return new Typography();
 	}
-
-	//--------------------------------------------------------------------
 }

system/Filters/CSRF.php

@@ -53,11 +53,11 @@ public function before(RequestInterface $request, $arguments = null)
 
 		try
 		{
-			$security->CSRFVerify($request);
+			$security->verify($request);
 		}
 		catch (SecurityException $e)
 		{
-			if (config('App')->CSRFRedirect && ! $request->isAJAX())
+			if ($security->shouldRedirect() && ! $request->isAJAX())
 			{
 				return redirect()->back()->with('error', $e->getMessage());
 			}

system/Language/en/Security.php

@@ -0,0 +1,16 @@
+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+// Security language settings
+return [
+	'disallowedAction' => 'The action you requested is not allowed.',
+	'invalidSameSite'  => 'The SameSite value must be None, Lax, Strict, or a blank string. Given: {0}',
+];

system/Security/Exceptions/SecurityException.php

@@ -17,11 +17,11 @@ class SecurityException extends FrameworkException
 {
 	public static function forDisallowedAction()
 	{
-		return new static(lang('HTTP.disallowedAction'), 403);
+		return new static(lang('Security.disallowedAction'), 403);
 	}
-
-	public static function forInvalidSameSiteSetting(string $samesite)
+	
+	public static function forInvalidSameSite(string $samesite)
 	{
-		return new static(lang('HTTP.invalidSameSiteSetting', [$samesite]));
+		return new static(lang('Security.invalidSameSite', [$samesite]));
 	}
 }