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Filename : addons.class.php
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<?php
/**
 * @author    ThemePunch <info@themepunch.com>
 * @link      https://www.themepunch.com/
 * @copyright 2019 ThemePunch
 */

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

class RevSliderAddons extends RevSliderFunctions { //before: Rev_addon_Admin
	//private $addon_version_required = '2.0.0'; //this holds the globally needed addon version for the current RS version
	
	private $addon_version_required = array(
		'revslider-404-addon' => '2.0.0',
		'revslider-backup-addon' => '2.0.0',
		'revslider-beforeafter-addon' => '3.0.0',
		'revslider-bubblemorph-addon' => '3.0.0',
		'revslider-charts-addon' => '3.0.0',
		'revslider-duotonefilters-addon' => '3.0.0',
		'revslider-explodinglayers-addon' => '3.0.0',
		'revslider-featured-addon' => '2.0.0',
		'revslider-filmstrip-addon' => '3.0.0',
		'revslider-gallery-addon' => '2.0.0',
		'revslider-liquideffect-addon' => '3.0.0',
		'revslider-login-addon' => '2.0.0',
		'revslider-lottie-addon' => '3.0.0',
		'revslider-maintenance-addon' => '2.0.0',
		'revslider-mousetrap-addon' => '3.0.0',
		'revslider-paintbrush-addon' => '3.0.0',
		'revslider-panorama-addon' => '3.0.0',
		'revslider-particles-addon' => '3.0.0',
		'revslider-polyfold-addon' => '3.0.0',
		'revslider-prevnext-posts-addon' => '2.0.0',
		'revslider-rel-posts-addon' => '2.0.0',
		'revslider-refresh-addon' => '3.0.0',
		'revslider-revealer-addon' => '3.0.0',
		'revslider-scrollvideo-addon' => '3.0.0',
		'revslider-sharing-addon' => '3.0.0',
		'revslider-slicey-addon' => '3.0.0',
		'revslider-snow-addon' => '3.0.0',
		'revslider-typewriter-addon' => '3.0.0',
		'revslider-weather-addon' => '2.0.0',
		'revslider-whiteboard-addon' => '3.0.0',
	);
	
	public function __construct(){
		include_once(ABSPATH . 'wp-admin/includes/plugin.php');
	}
	
	/**
	 * get all the addons with information
	 **/
	public function get_addon_list(){
		$addons	= get_option('revslider-addons');
		$addons	= (array)$addons;
		$addons = array_reverse($addons, true);
		$plugins = get_plugins();
		
		if(!empty($addons)){
			foreach($addons as $k => $addon){
				if(!is_object($addon)) continue;
				if(array_key_exists($addon->slug.'/'.$addon->slug.'.php', $plugins)){
					$addons[$k]->full_title	= $plugins[$addon->slug.'/'.$addon->slug.'.php']['Name'];
					$addons[$k]->active = is_plugin_active($addon->slug.'/'.$addon->slug.'.php');
					$addons[$k]->installed	= $plugins[$addon->slug.'/'.$addon->slug.'.php']['Version'];
				}else{
					$addons[$k]->active = false;
					$addons[$k]->installed	= false;
				}
			}
		}
		
		return $addons;
	}
	
	/**
	 * get a specific addon version
	 **/
	public function get_addon_version($handle){
		$list = $this->get_addon_list();
		return $this->get_val($list, array($handle, 'installed'), false);
	}

	/**
	 * check if any addon is below version x (for RS6.0 this is version 2.0)
	 * if yes give a message that tells to update
	 **/
	public function check_addon_version(){
		$rs_addons	= $this->get_addon_list();
		$update		= array();
		
		if(!empty($rs_addons)){
			foreach($rs_addons as $handle => $addon){
				$installed = $this->get_val($addon, 'installed');
				if(trim($installed) === '') continue;
				if($this->get_val($addon, 'active', false) === false) continue;
				
				$version = $this->get_val($this->addon_version_required, $handle, false);
				if($version !== false && version_compare($installed, $version, '<')){
					$available = (version_compare($version, $this->get_val($addon, 'available'), '>')) ? $version : $this->get_val($addon, 'available');
					$update[$handle] = array(
						'title' => $this->get_val($addon, 'full_title'),
						'old'	=> $installed,
						'new'	=> $available,
						'status'=> '1' //1 is mandatory to use it
					);
				}
			}
		}
		
		return $update;
	}
	
	/**
	 * Install Add-On/Plugin
	 *
	 * @since 6.0
	 */
	public function install_addon($addon, $force = false){
		if(get_option('revslider-valid', 'false') !== 'true') return __('Please activate Slider Revolution', 'revslider');
		
		//check if downloaded already
		$plugins	= get_plugins();
		$addon_path = $addon.'/'.$addon.'.php';
		if(!array_key_exists($addon_path, $plugins) || $force == true || !file_exists(WP_PLUGIN_DIR.'/'.$addon_path)){
			//download if nessecary
			return $this->download_addon($addon);
		}
		
		//activate 
		$activate = $this->activate_addon($addon_path);
		
		return $activate;
	}
	
	/**
	 * Download Add-On/Plugin
	 *
	 * @since    1.0.0
	 */
	public function download_addon($addon){
		global $rslb;
		
		if(get_option('revslider-valid', 'false') !== 'true') return __('Please activate Slider Revolution', 'revslider');
		
		$plugin_slug	= basename($addon);
		if(0 !== strpos($plugin_slug, 'revslider-')) die( '-1' );

		$code = get_option('revslider-code', '');
		
		$done	= false;
		$count	= 0;
		$rattr	= array(
			'code'		=> urlencode($code),
			'version'	=> urlencode(RS_REVISION),
			'product'	=> urlencode(RS_PLUGIN_SLUG),
			'type'		=> urlencode($plugin_slug)
		);
		
		do{	
			$url = 'addons/'.$plugin_slug.'/download.php';
			$get = $rslb->call_url($url, $rattr, 'updates');
			
			if(wp_remote_retrieve_response_code($get) == 200){
				$done = true;
			}else{
				$rslb->move_server_list();
			}
			
			$count++;
		}while($done == false && $count < 5);
		
		if($get && $get['body'] != 'invalid' && wp_remote_retrieve_response_code($get) == 200){
			$upload_dir	= wp_upload_dir();
			$file		= $upload_dir['basedir']. '/revslider/templates/' . $plugin_slug . '.zip';
			@mkdir(dirname($file), 0777, true);
			$ret		= @file_put_contents($file, $get['body']);
			
			require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php');
			require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-direct.php');
			$fsd = new WP_Filesystem_Direct(false);
			WP_Filesystem();
			
			global $wp_filesystem;

			$upload_dir	= wp_upload_dir();
			$d_path		= WP_PLUGIN_DIR;
			$fsd->rmdir($d_path . '/' . $plugin_slug, true); //remove the addon folder if exists

			$unzipfile	= unzip_file($file, $d_path);

			if(is_wp_error($unzipfile)){
				define('FS_METHOD', 'direct'); //lets try direct. 

				WP_Filesystem();  //WP_Filesystem() needs to be called again since now we use direct !

				//@chmod($file, 0775);
				$unzipfile = unzip_file($file, $d_path);
				if(is_wp_error($unzipfile)){
					$d_path = WP_PLUGIN_DIR;
					$unzipfile = unzip_file($file, $d_path);
					
					if(is_wp_error($unzipfile)){
						$f		= basename($file);
						$d_path = str_replace($f, '', $file);

						$unzipfile = unzip_file($file, $d_path);
					}
				}
			}
			
			@unlink($file);
			return true;
		}
		
		//$result = activate_plugin( $plugin_slug.'/'.$plugin_slug.'.php' );
		return false;
	}
	
	/**
	 * Activates Installed Add-On/Plugin
	 *
	 * @since    1.0.0
	 */
	public function activate_addon($addon){
		// Verify that the incoming request is coming with the security nonce
		if(isset($addon)){
			$result = activate_plugin($addon);
			if(is_wp_error($result)){
				// Process Error
				return false;
			}
		}else{
			return false;
		}
		
		return true;
	}

	/**
	 * Deactivates Installed Add-On/Plugin
	 *
	 * @since    1.0.0
	 */
	public function deactivate_addon($addon){
		// Verify that the incoming request is coming with the security nonce
		deactivate_plugins($addon);
		return true;
	}
}

class Rev_addon_Admin extends RevSliderAddons {}