Sync plugins from current page

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/advanced-custom-fields/includes/ajax/class-acf-ajax.php

@@ -0,0 +1,184 @@
+<?php
+
+if( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
+
+if( ! class_exists('ACF_Ajax') ) :
+
+class ACF_Ajax {
+	
+	/** @var string The AJAX action name. */
+	var $action = '';
+	
+	/** @var array The $_REQUEST data. */
+	var $request;
+	
+	/** @var bool Prevents access for non-logged in users. */
+	var $public = false;
+	
+	/**
+	 * __construct
+	 *
+	 * Sets up the class functionality.
+	 *
+	 * @date	31/7/18
+	 * @since	5.7.2
+	 *
+	 * @param	void
+	 * @return	void
+	 */
+	function __construct() {
+		$this->initialize();
+		$this->add_actions();
+	}
+	
+	/**
+	 * has
+	 *
+	 * Returns true if the request has data for the given key.
+	 *
+	 * @date	31/7/18
+	 * @since	5.7.2
+	 *
+	 * @param	string $key The data key.
+	 * @return	boolean
+	 */
+	function has( $key = '' ) {
+		return isset($this->request[$key]);
+	}
+	
+	/**
+	 * get
+	 *
+	 * Returns request data for the given key.
+	 *
+	 * @date	31/7/18
+	 * @since	5.7.2
+	 *
+	 * @param	string $key The data key.
+	 * @return	mixed
+	 */
+	function get( $key = '' ) {
+		return isset($this->request[$key]) ? $this->request[$key] : null;
+	}
+	
+	/**
+	 * set
+	 *
+	 * Sets request data for the given key.
+	 *
+	 * @date	31/7/18
+	 * @since	5.7.2
+	 *
+	 * @param	string $key The data key.
+	 * @param	mixed $value The data value.
+	 * @return	ACF_Ajax
+	 */
+	function set( $key = '', $value ) {
+		$this->request[$key] = $value;
+		return $this;
+	}
+	
+	/**
+	 * initialize
+	 *
+	 * Allows easy access to modifying properties without changing constructor.
+	 *
+	 * @date	31/7/18
+	 * @since	5.7.2
+	 *
+	 * @param	void
+	 * @return	void
+	 */
+	function initialize() {
+		/* do nothing */
+	}
+	
+	/**
+	 * add_actions
+	 *
+	 * Adds the ajax actions for this response.
+	 *
+	 * @date	31/7/18
+	 * @since	5.7.2
+	 *
+	 * @param	void
+	 * @return	void
+	 */
+	function add_actions() {
+		
+		// add action for logged-in users
+		add_action( "wp_ajax_{$this->action}", array($this, 'request') );
+		
+		// add action for non logged-in users
+		if( $this->public ) {
+			add_action( "wp_ajax_nopriv_{$this->action}", array($this, 'request') );
+		}
+	}
+	
+	/**
+	 * request
+	 *
+	 * Callback for ajax action. Sets up properties and calls the get_response() function.
+	 *
+	 * @date	1/8/18
+	 * @since	5.7.2
+	 *
+	 * @param	void
+	 * @return	void
+	 */
+	function request() {
+		
+		// Verify ajax request
+		if( !acf_verify_ajax() ) {
+			wp_send_json_error();
+		}
+		
+		// Store data for has() and get() functions.
+		$this->request = wp_unslash($_REQUEST);
+		
+		// Send response.
+		$this->send( $this->get_response( $this->request ) );
+	}
+	
+	/**
+	 * get_response
+	 *
+	 * Returns the response data to sent back.
+	 *
+	 * @date	31/7/18
+	 * @since	5.7.2
+	 *
+	 * @param	array $request The request args.
+	 * @return	mixed The response data or WP_Error.
+	 */
+	function get_response( $request ) {
+		return true;
+	}
+	
+	/**
+	 * send
+	 *
+	 * Sends back JSON based on the $response as either success or failure.
+	 *
+	 * @date	31/7/18
+	 * @since	5.7.2
+	 *
+	 * @param	mixed $response The response to send back.
+	 * @return	void
+	 */
+	function send( $response ) {
+		
+		// Return error.
+		if( is_wp_error($response) ) {
+			wp_send_json_error(array( 'error' => $response->get_error_message() ));
+		
+		// Return success.
+		} else {
+			wp_send_json_success($response);
+		}
+	}
+}
+
+endif; // class_exists check
+
+?>