kuck1u-test-plugin.php

<?php
/**
 * Plugin Name: KUCKLU Test Plugin
 * Plugin URI:
 * Description: -_-
 * Author: KUCKLU
 * Version: 1.0.0
 * Author URI: http://visualive.jp/
 * Text Domain: kuck1u-test-plugin
 * Domain Path: /langs
 * License: GNU General Public License v2 or later
 * License URI: http://www.gnu.org/licenses/gpl-2.0.html
 *
 * @package    WordPress
 * @subpackage KUCKLU Test Plugin
 * @author     KUCKLU <kuck1u@visualive.jp>
 *             Copyright (C) 2015 KUCKLU & VisuAlive.
 *             This program is free software; you can redistribute it and/or modify
 *             it under the terms of the GNU General Public License as published by
 *             the Free Software Foundation; either version 2 of the License, or
 *             (at your option) any later version.
 *             This program is distributed in the hope that it will be useful,
 *             but WITHOUT ANY WARRANTY; without even the implied warranty of
 *             MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *             GNU General Public License for more details.
 *             You should have received a copy of the GNU General Public License along
 *             with this program; if not, write to the Free Software Foundation, Inc.,
 *             51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *             It is also available through the world-wide-web at this URL:
 *             http://www.gnu.org/licenses/gpl-2.0.txt
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Filter the URL embed handler callback.
 *
 * @since 1.0.0
 *
 * @param callable $handler URL embed handler callback function.
 */
add_action( 'plugins_loaded', function () {
	$whitelist = apply_filters( 'kuck1u_test_plugin_whitelist', array(
		'youtube\.com\/watch',
		'youtube\.com\/playlist',
		'youtu\.be',
		'vimeo\.com',
		'dailymotion\.com',
		'dai\.ly',
		'flickr\.com',
		'flic\.kr',
		'smugmug\.com',
		'hulu\.com\/watch',
		'photobucket.com\/albums',
		'photobucket.com\/groups',
		'scribd\.com\/doc',
		'wordpress\.tv',
		'polldaddy\.com',
		'poll\.fm',
		'funnyordie\.com\/videos',
		'twitter\.com',
		'vine\.co\/v',
		'soundcloud\.com',
		'slideshare\.net',
		'instagr\.am\/p',
		'instagram\.com\/p',
		'rdio\.com',
		'rd\.io\/x',
		'spotify\.com',
		'imgur\.com',
		'meetu\.ps',
		'meetup\.com',
		'issuu\.com',
		'collegehumor\.com\/video',
		'mixcloud\.com',
		'ted\.com\/talks',
		'animoto\.com\/play',
		'video214\.com\/play',
		'tumblr\.com\/post',
		'kickstarter\.com\/projects',
		'kck\.st',
		'cloudup\.com',
		'reverbnation\.com',
		'videopress.com\/v',
		'reddit\.com\/r',
		'speakerdeck\.com',
	) );
	$regex     = '/^(https?:\/\/(?!.*(' . join( '|', $whitelist ) . ')).*[-_.!~*\'()a-zA-Z0-9;\/?:\@&=+\$,%#]+)$/i';
	wp_embed_register_handler( 'kuck1u_test_plugin', $regex, apply_filters( 'wp_kuck1u_test_plugin_embed_handler', 'wp_embed_handler_kuck1u_test_plugin' ) );
} );

/**
 * VA Test embed.
 *
 * @param array  $matches The RegEx matches from the provided regex when calling wp_embed_register_handler().
 * @param array  $attr    Embed attributes.
 * @param string $url     The original URL that was matched by the regex.
 * @param array  $rawattr The original unmodified attributes.
 *
 * @return string The embed HTML.
 */
function wp_embed_handler_kuck1u_test_plugin( $matches, $attr, $url, $rawattr ) {
	$embed  = 'KUCKLU -_- oEmbed test.';
	$output = apply_filters( 'kuck1u_test_plugin_embed', $embed, $matches, $attr, $url, $rawattr );

	return $output;
}