Edit - Generic_AdminActions

Edit: Generic_AdminActions_Test.php

<?php
/**
 * File: Generic_AdminActions_Test.php
 *
 * @package W3TC
 */

namespace W3TC;

/**
 * Class Generic_AdminActions_Test
 *
 * phpcs:disable PSR2.Classes.PropertyDeclaration.Underscore
 * phpcs:disable PSR2.Methods.MethodDeclaration.Underscore
 * phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged
 * phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
 */
class Generic_AdminActions_Test {
	/**
	 * Config
	 *
	 * @var Config
	 */
	private $_config = null;

/**
	 * Current page
	 *
	 * @var null|string
	 */
	private $_page = null;

/**
	 * Constructor
	 *
	 * @return void
	 */
	public function __construct() {
		$this->_config = Dispatcher::config();
		$this->_page   = Util_Admin::get_current_page();
	}

/**
	 * Test memcached
	 *
	 * @return void
	 */
	public function w3tc_test_memcached() {
		$servers         = Util_Request::get_array( 'servers' );
		$binary_protocol = Util_Request::get_boolean( 'binary_protocol', true );
		$username        = Util_Request::get_string( 'username', '' );
		$password        = Util_Request::get_string( 'password', '' );

$this->respond_test_result( $this->is_memcache_available( $servers, $binary_protocol, $username, $password ) );
	}

/**
	 * Test redis
	 *
	 * @return void
	 */
	public function w3tc_test_redis() {
		$servers                 = Util_Request::get_array( 'servers' );
		$verify_tls_certificates = Util_Request::get_boolean( 'verify_tls_certificates', true );
		$password                = Util_Request::get_string( 'password', '' );
		$dbid                    = Util_Request::get_integer( 'dbid', 0 );

if ( empty( $servers ) ) {
			$success = false;
		} else {
			$success = true;

foreach ( $servers as $server ) {
				@$cache = Cache::instance( // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
					'redis',
					array(
						'servers'                 => $server,
						'verify_tls_certificates' => $verify_tls_certificates,
						'persistent'              => false,
						'password'                => $password,
						'dbid'                    => $dbid,
					)
				);

if ( empty( $cache ) ) {
					$success = false;
				}

$test_string = sprintf( 'test_' . md5( time() ) );
				$test_value  = array( 'content' => $test_string );

$cache->set( $test_string, $test_value, 60 );

$test_value = $cache->get( $test_string );

if ( empty( $test_value['content'] ) || $test_value['content'] !== $test_string ) {
					$success = false;
				}
			}
		}

$this->respond_test_result( $success );
	}

/**
	 * Return response results
	 *
	 * @param bool $success Success.
	 *
	 * @return void
	 */
	private function respond_test_result( $success ) {
		if ( $success ) {
			$response = array(
				'result' => true,
				'error'  => __( 'Test passed.', 'w3-total-cache' ),
			);
		} else {
			$response = array(
				'result' => false,
				'error'  => __( 'Test failed.', 'w3-total-cache' ),
			);
		}

echo wp_json_encode( $response );
		exit();
	}

/**
	 * Test minifier action
	 *
	 * @return void
	 */
	public function w3tc_test_minifier() {
		$engine    = Util_Request::get_string( 'engine' );
		$path_java = Util_Request::get_string( 'path_java' );
		$path_jar  = Util_Request::get_string( 'path_jar' );

$result = false;
		$error  = '';

if ( 'googleccjs' !== $engine ) {
			if ( ! $path_java ) {
				$error = __( 'Empty JAVA executable path.', 'w3-total-cache' );
			} elseif ( ! $path_jar ) {
				$error = __( 'Empty JAR file path.', 'w3-total-cache' );
			}
		}

if ( empty( $error ) ) {
			switch ( $engine ) {
				case 'yuijs':
					\W3TCL\Minify\Minify_YUICompressor::$tempDir        = Util_File::create_tmp_dir();
					\W3TCL\Minify\Minify_YUICompressor::$javaExecutable = $path_java;
					\W3TCL\Minify\Minify_YUICompressor::$jarFile        = $path_jar;

$result = \W3TCL\Minify\Minify_YUICompressor::testJs( $error );
					break;

case 'yuicss':
					\W3TCL\Minify\Minify_YUICompressor::$tempDir        = Util_File::create_tmp_dir();
					\W3TCL\Minify\Minify_YUICompressor::$javaExecutable = $path_java;
					\W3TCL\Minify\Minify_YUICompressor::$jarFile        = $path_jar;

$result = \W3TCL\Minify\Minify_YUICompressor::testCss( $error );
					break;

case 'ccjs':
					\W3TCL\Minify\Minify_ClosureCompiler::$tempDir        = Util_File::create_tmp_dir();
					\W3TCL\Minify\Minify_ClosureCompiler::$javaExecutable = $path_java;
					\W3TCL\Minify\Minify_ClosureCompiler::$jarFile        = $path_jar;

$result = \W3TCL\Minify\Minify_ClosureCompiler::test( $error );
					break;

case 'googleccjs':
					$result = \W3TCL\Minify\Minify_JS_ClosureCompiler::test( $error );
					break;

default:
					$error = __( 'Invalid engine.', 'w3-total-cache' );
					break;
			}
		}

$response = array(
			'result' => $result,
			'error'  => $error,
		);

echo wp_json_encode( $response );
	}

/**
	 * Check if memcache is available
	 *
	 * @param array  $servers         Servers.
	 * @param string $binary_protocol Binary Protocol.
	 * @param string $username        Username.
	 * @param string $password        Password.
	 *
	 * @return boolean
	 */
	private function is_memcache_available( $servers, $binary_protocol, $username, $password ) {
		if ( count( $servers ) <= 0 ) {
			return false;
		}

foreach ( $servers as $server ) {
			@$memcached = Cache::instance(
				'memcached',
				array(
					'servers'         => $server,
					'persistent'      => false,
					'binary_protocol' => $binary_protocol,
					'username'        => $username,
					'password'        => $password,
				)
			);

if ( is_null( $memcached ) ) {
				return false;
			}

$test_string = sprintf( 'test_' . md5( time() ) );
			$test_value  = array( 'content' => $test_string );
			$memcached->set( $test_string, $test_value, 60 );
			$test_value = $memcached->get( $test_string );

if ( empty( $test_value['content'] ) || $test_value['content'] !== $test_string ) {
				return false;
			}
		}

return true;
	}

/**
	 * Self test action
	 *
	 * @return void
	 */
	public function w3tc_test_self() {
		include W3TC_INC_LIGHTBOX_DIR . '/self_test.php';
	}

/**
	 * Minify recommendations action
	 *
	 * @return void
	 */
	public function w3tc_test_minify_recommendations() {
		$options_minify = new Minify_Page();
		$options_minify->recommendations();
	}
}

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