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<?php
// Do not allow directly accessing this file.
if ( ! defined( 'ABSPATH' ) ) {
exit( 'Direct script access denied.' );
}
/**
* Handles getting patches remotely and preparing them for Avada.
*
* @since 4.0.0
*/
class Avada_Patcher_Client {
/**
* Patches array.
*
* @var bool|array
*/
public static $patches;
/**
* The name of the transient we'll be using.
*
* @var string
*/
private static $transient_name = 'avada_patches';
/**
* The URL of the patches remote server.
*
* @var string
*/
public $remote_patches_uri = 'https://theme-fusion.com/avada_patch/';
/**
* The Avada version.
*
* @access private
* @since 5.0.0
* @var string
*/
private $avada_version = false;
/**
* The Fusion-Core version.
*
* @access private
* @since 5.0.0
* @var string
*/
private $fusion_core_version = false;
/**
* The Fusion-Builder version.
*
* @access private
* @since 5.0.0
* @var string
*/
private $fusion_builder_version = false;
/**
* Gets an array of all our patches.
* If we have these cached then use caches,
* otherwise query the server.
*
* @return array
*/
public static function get_patches() {
$client = new self();
if ( $client->get_cached() ) {
self::$patches = $client->get_cached();
} else {
self::$patches = $client->query_patch_server();
$client->cache_response();
}
return $client->prepare_patches( self::$patches );
}
/**
* Queries the patches server for a list of patches.
*
* @return bool|array
*/
private function query_patch_server() {
// Get the fusion-core version.
$this->fusion_core_version = ( class_exists( 'FusionCore_Plugin' ) ) ? FusionCore_Plugin::VERSION : false;
// Get the fusion-builder plugin version.
$this->fusion_builder_version = ( class_exists( 'FusionBuilder' ) ) ? FUSION_BUILDER_VERSION : false;
// Get the avada theme version.
$this->avada_version = Avada::get_theme_version();
// Build the remote server URL using the theme version.
$args = array();
if ( $this->avada_version ) {
$args['avada_version'] = $this->avada_version;
}
if ( $this->fusion_builder_version ) {
$args['fusion_builder_version'] = $this->fusion_builder_version;
}
if ( $this->fusion_core_version ) {
$args['fusion_core_version'] = $this->fusion_core_version;
}
$url = add_query_arg( $args, $this->remote_patches_uri );
// Get the server response.
$response = wp_remote_get( $url, array( 'user-agent' => 'avada-patcher-client' ) );
// Return false if we couldn't get to the server.
if ( is_wp_error( $response ) ) {
// Add a message so that the user knows what happened.
new Avada_Patcher_Admin_Notices( 'server-unreachable', esc_attr__( 'The Avada patches server could not be reached. Please contact your host to unblock the "https://theme-fusion.com/" domain.', 'Avada' ) );
return false;
}
// Return false if the response does not have a body.
if ( ! isset( $response['body'] ) ) {
return false;
}
$json = $response['body'];
// Response may have comments from caching plugins making it invalid.
if ( false !== strpos( $response['body'], '<!--' ) ) {
$json = explode( '<!--', $json );
return json_decode( $json[0] );
}
return json_decode( $json );
}
/**
* Decodes patches if needed.
*
* @return array
*/
private function prepare_patches() {
self::$patches = (array) self::$patches;
$patches = array();
if ( ! empty( self::$patches ) ) {
foreach ( self::$patches as $patch_id => $patch_args ) {
$patches[ $patch_id ] = (array) $patch_args;
if ( empty( $patch_args ) ) {
continue;
}
foreach ( $patch_args as $key => $patch ) {
$patches[ $patch_id ][ $key ] = (array) $patch;
foreach ( $patches[ $patch_id ]['patch'] as $patch_key => $args ) {
$args = (array) $args;
$args['reference'] = base64_decode( $args['reference'] );
$patches[ $patch_id ]['patch'][ $patch_key ] = $args;
}
}
}
}
return $patches;
}
/**
* Gets the cached patches.
*/
private function get_cached() {
// Force getting new options from the server if needed.
if ( $_GET && isset( $_GET['avada-reset-cached-patches'] ) ) {
$this->reset_cache();
return false;
}
return get_site_transient( self::$transient_name );
}
/**
* Caches the patches using transients.
*
* @return void
*/
private function cache_response() {
if ( false !== self::$patches && ! empty( self::$patches ) ) {
// Cache for 30 minutes.
set_site_transient( self::$transient_name, self::$patches, 30 * 60 );
}
}
/**
* Resets the transient cache.
*
* @return void
*/
private function reset_cache() {
delete_site_transient( self::$transient_name );
}
}