<?php
/*
Plugin Name: WP Smush
Plugin URI: http://wordpress.org/extend/plugins/wp-smushit/
Description: Reduce image file sizes, improve performance and boost your SEO using the free <a href="https://premium.wpmudev.org/">WPMU DEV</a> WordPress Smush API.
Author: WPMU DEV
Version: 2.7.1
Author URI: http://premium.wpmudev.org/
Text Domain: wp-smushit
*/

/*
This plugin was originally developed by Alex Dunae.
http://dialect.ca/
*/

/*
Copyright 2007-2016 Incsub (http://incsub.com)

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License (Version 2 - GPLv2) as published by
the Free Software Foundation.

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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/**
 * Constants
 */
$prefix  = 'WP_SMUSH_';
$version = '2.7.1';

//Deactivate the .org version, if pro version is active
add_action( 'admin_init', 'deactivate_smush_org' );

if ( ! function_exists( 'deactivate_smush_org' ) ) {
	function deactivate_smush_org() {
		if ( is_plugin_active( 'wp-smush-pro/wp-smush.php' ) && is_plugin_active( 'wp-smushit/wp-smush.php' ) ) {
			deactivate_plugins( 'wp-smushit/wp-smush.php' );
			//Store in database, in order to show a notice on page load
			update_site_option( 'smush_deactivated', 1 );
		}
	}
}

/**
 * Set the default timeout for API request and AJAX timeout
 */
$timeout = apply_filters( 'WP_SMUSH_API_TIMEOUT', 90 );

// To support smushing on staging sites like SiteGround staging where
// staging site urls are different but redirects to main site url.
// Remove the protocols and www, and get the domain name.
$site_url = str_replace( array( 'http://', 'https://', 'www.' ), '', site_url() );
// If current site's url is different from site_url, disable Async.
if ( ( 0 !== strpos( $_SERVER['SERVER_NAME'], $site_url ) ) && ! defined( $prefix . 'ASYNC' ) ) {
	define( $prefix . 'ASYNC', false );
}

$smush_constants = array(
	'VERSION'           => $version,
	'BASENAME'          => plugin_basename( __FILE__ ),
	'API'               => 'https://smushpro.wpmudev.org/1.0/',
	'UA'                => 'WP Smush/' . $version . '; ' . network_home_url(),
	'DIR'               => plugin_dir_path( __FILE__ ),
	'URL'               => plugin_dir_url( __FILE__ ),
	'MAX_BYTES'         => 1000000,
	'PREMIUM_MAX_BYTES' => 32000000,
	'PREFIX'            => 'wp-smush-',
	'TIMEOUT'           => $timeout,
	//If Set to false, WP Smush switch backs to the Old Sync Optimisation
	'ASYNC'             => true
);

foreach ( $smush_constants as $const_name => $constant_val ) {
	if ( ! defined( $prefix . $const_name ) ) {
		define( $prefix . $const_name, $constant_val );
	}
}

//Include main class
require_once WP_SMUSH_DIR . 'lib/class-wp-smush.php';

/**
 * Filters the rating message, include stats if greater than 1Mb
 *
 * @param $message
 *
 * @return string
 */
if ( ! function_exists( 'wp_smush_rating_message' ) ) {
	function wp_smush_rating_message( $message ) {
		global $wpsmushit_admin, $wpsmush_db;
		if ( empty( $wpsmushit_admin->stats ) ) {
			$wpsmushit_admin->setup_global_stats();
		}
		$savings     = $wpsmushit_admin->stats;
		$show_stats  = false;

		//If there is any saving, greater than 1Mb, show stats
		if ( ! empty( $savings ) && ! empty( $savings['bytes'] ) && $savings['bytes'] > 1048576 ) {
			$show_stats = true;
		}

		$message = "Hey %s, you've been using %s for a while now, and we hope you're happy with it.";

		//Conditionally Show stats in rating message
		if ( $show_stats ) {
			$message .= sprintf( " You've smushed <strong>%s</strong> from %d images already, improving the speed and SEO ranking of this site!", $savings['human'], $savings['total_images'] );
		}
		$message .= " We've spent countless hours developing this free plugin for you, and we would really appreciate it if you dropped us a quick rating!";

		return $message;
	}
}

/**
 * NewsLetter
 *
 * @param $message
 *
 * @return string
 */
if ( ! function_exists( 'wp_smush_email_message' ) ) {
	function wp_smush_email_message( $message ) {
		$message = "You're awesome for installing %s! Site speed isn't all image optimization though, so we've collected all the best speed resources we know in a single email - just for users of WP Smush!";

		return $message;
	}
}
if ( ! function_exists( 'get_plugin_dir' ) ) {
	/**
	 * Returns the dir path for the plugin
	 *
	 * @return string
	 */
	function get_plugin_dir() {
		$dir_path = plugin_dir_path( __FILE__ );

		return $dir_path;
	}
}

if ( is_admin() ) {

	$dir_path = get_plugin_dir();

	//Only for wordpress.org members
	if ( strpos( $dir_path, 'wp-smushit' ) !== false ) {
		require_once( WP_SMUSH_DIR . 'extras/free-dashboard/module.php' );

		// Register the current plugin.
		do_action(
			'wdev-register-plugin',
			/* 1             Plugin ID */
			plugin_basename( __FILE__ ), /* Plugin ID */
			/* 2          Plugin Title */
			'WP Smush',
			/* 3 https://wordpress.org */
			'/plugins/wp-smushit/',
			/* 4      Email Button CTA */
			__( 'Get Fast', 'wp-smushit' ),
			/* 5  getdrip Plugin param */
			'Smush'
		);

		// The rating message contains 2 variables: user-name, plugin-name
		add_filter(
			'wdev-rating-message-' . plugin_basename( __FILE__ ),
			'wp_smush_rating_message'
		);

		// The email message contains 1 variable: plugin-name
		add_filter(
			'wdev-email-message-' . plugin_basename( __FILE__ ),
			'wp_smush_email_message'
		);
	} elseif ( strpos( $dir_path, 'wp-smush-pro' ) !== false ) {

		//Only for WPMU DEV Members
		require_once( WP_SMUSH_DIR . 'extras/dash-notice/wpmudev-dash-notification.php' );

		//register items for the dashboard plugin
		global $wpmudev_notices;
		$wpmudev_notices[] = array(
			'id'      => 912164,
			'name'    => 'WP Smush Pro',
			'screens' => array(
				'upload',
				'media_page_wp-smush-bulk'
			)
		);
	}
}

//Show the required notice
add_action( 'network_admin_notices', 'smush_deactivated' );
add_action( 'admin_notices', 'smush_deactivated' );
//Display a admin Notice about plugin deactivation
if ( ! function_exists( 'smush_deactivated' ) ) {
	function smush_deactivated() {
		if ( get_site_option( 'smush_deactivated' ) && is_super_admin() ) { ?>
			<div class="updated">
				<p><?php esc_html_e( 'WP Smush Free was deactivated. You have WP Smush Pro active!', 'wp-smushit' ); ?></p>
			</div> <?php
			delete_site_option( 'smush_deactivated' );
		}
	}
}

if ( ! function_exists( 'smush_activated' ) ) {
//Check if a existing install or new
	function smush_activated() {

		$version = get_site_option( WP_SMUSH_PREFIX . 'version' );

		//If the version is not saved or if the version is not same as the current version,
		if ( ! $version || WP_SMUSH_VERSION != $version ) {
			global $wpdb;
			//Check if there are any existing smush stats
			$query   = "SELECT meta_id FROM {$wpdb->postmeta} WHERE meta_key=%s LIMIT 1";
			$results = $wpdb->get_var( $wpdb->prepare( $query, 'wp-smpro-smush-data' ) );

			if ( $results ) {
				update_site_option( 'wp-smush-install-type', 'existing' );
			} else {
				//Check for existing settings
				if ( false !== get_site_option( WP_SMUSH_PREFIX . 'auto' ) || false !== get_option( WP_SMUSH_PREFIX . 'auto' ) ) {
					update_site_option( 'wp-smush-install-type', 'existing' );
				}
			}

			//Store the plugin version in db
			update_site_option( WP_SMUSH_PREFIX . 'version', WP_SMUSH_VERSION );
		}

	}
}


if ( ! function_exists( 'smush_sanitize_hex_color' ) ) {
	/**
	 * Sanitizes a hex color.
	 *
	 * @param $color
	 *
	 * @return string Returns either '', a 3 or 6 digit hex color (with #), or nothing
	 */
	function smush_sanitize_hex_color( $color ) {
		if ( '' === $color ) {
			return '';
		}

		// 3 or 6 hex digits, or the empty string.
		if ( preg_match( '|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) ) {
			return $color;
		}
	}
}

if ( ! function_exists( 'smush_sanitize_hex_color_no_hash' ) ) {
	/**
	 * Sanitizes a hex color without hash
	 *
	 * @param $color
	 *
	 * @return string Returns either '', a 3 or 6 digit hex color (with #), or nothing
	 */
	function smush_sanitize_hex_color_no_hash( $color ) {
		$color = ltrim( $color, '#' );

		if ( '' === $color ) {
			return '';
		}

		return smush_sanitize_hex_color( '#' . $color ) ? $color : null;
	}
}
//Load Translation files
add_action( 'plugins_loaded', 'smush_i18n' );
if( !function_exists('smush_i18n')) {
	function smush_i18n() {
		$path = path_join( dirname( plugin_basename( __FILE__ ) ), 'languages/' );
		load_plugin_textdomain( 'wp-smushit', false, $path );
	}
}

register_activation_hook( __FILE__, 'smush_activated' );