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<?php

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/**

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* Fetch the wpml config files for known plugins and themes

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* @package wpml-core

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class WPML_Config_Update {

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/** @var bool */

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private $has_errors;

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private $log;

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/** @var SitePress $sitepress */

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protected $sitepress;

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/**

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* @var WP_Http $http

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private $http;

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/**

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* @var WPML_Active_Plugin_Provider

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private $active_plugin_provider;

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/**

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* WPML_Config_Update constructor.

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* @param SitePress $sitepress

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* @param WP_Http $http

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* @param WPML_Log|null $log

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public function __construct( $sitepress, $http, WPML_Log $log = null ) {

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$this->sitepress = $sitepress;

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$this->http = $http;

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$this->log = $log;

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}

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/**

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* @param WPML_Active_Plugin_Provider $active_plugin_provider

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public function set_active_plugin_provider( WPML_Active_Plugin_Provider $active_plugin_provider ) {

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$this->active_plugin_provider = $active_plugin_provider;

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}

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/**

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* @return WPML_Active_Plugin_Provider

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public function get_active_plugin_provider() {

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if ( null === $this->active_plugin_provider ) {

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if ( ! class_exists( 'WPML_Active_Plugin_Provider' ) ) {

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require_once WPML_PLUGIN_PATH . '/classes/class-wpml-active-plugin-provider.php';

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}

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$this->active_plugin_provider = new WPML_Active_Plugin_Provider();

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}

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return $this->active_plugin_provider;

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}

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public function run() {

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if ( ! $this->is_config_update_disabled() ) {

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$this->has_errors = false;

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$request_args = array( 'timeout' => 45 );

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$index_response = $this->http->get( ICL_REMOTE_WPML_CONFIG_FILES_INDEX . 'wpml-config/config-index.json', $request_args );

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if ( ! $this->is_a_valid_remote_response( $index_response ) ) {

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$this->log_response( $index_response, 'index', 'wpml-config/config-index.json' );

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} else {

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$arr = json_decode( $index_response['body'] );

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$plugins = isset( $arr->plugins ) ? $arr->plugins : array();

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$themes = isset( $arr->themes ) ? $arr->themes : array();

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if ( $plugins || $themes ) {

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update_option( 'wpml_config_index', $arr, false );

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update_option( 'wpml_config_index_updated', time(), false );

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$config_files_original = get_option( 'wpml_config_files_arr', null );

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$config_files = maybe_unserialize( $config_files_original );

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$config_files_for_themes = array();

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$deleted_configs_for_themes = array();

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$config_files_for_plugins = array();

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$deleted_configs_for_plugins = array();

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if ( $config_files ) {

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if ( isset( $config_files->themes ) && $config_files->themes ) {

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$config_files_for_themes = $config_files->themes;

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$deleted_configs_for_themes = $config_files->themes;

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}

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if ( isset( $config_files->plugins ) && $config_files->plugins ) {

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$config_files_for_plugins = $config_files->plugins;

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$deleted_configs_for_plugins = $config_files->plugins;

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}

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}

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$current_theme_name = $this->sitepress->get_wp_api()

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->get_theme_name();

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$current_theme_parent = '';

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if ( method_exists( $this->sitepress->get_wp_api(), 'get_theme_parent_name' ) ) {

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$current_theme_parent = $this->sitepress->get_wp_api()

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->get_theme_parent_name();

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}

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$active_theme_names = array( $current_theme_name );

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if ( $current_theme_parent ) {

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$active_theme_names[] = $current_theme_parent;

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}

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foreach ( $themes as $theme ) {

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if ( in_array( $theme->name, $active_theme_names, true ) ) {

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unset( $deleted_configs_for_themes[ $theme->name ] );

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if ( ! isset( $config_files_for_themes[ $theme->name ] ) || md5( $config_files_for_themes[ $theme->name ] ) !== $theme->hash ) {

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$theme_response = $this->http->get( ICL_REMOTE_WPML_CONFIG_FILES_INDEX . $theme->path, $request_args );

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if ( ! $this->is_a_valid_remote_response( $theme_response ) ) {

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$this->log_response( $theme_response, 'index', $theme->name );

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} else {

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$config_files_for_themes[ $theme->name ] = $theme_response['body'];

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}

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}

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}

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}

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foreach ( $deleted_configs_for_themes as $key => $deleted_config ) {

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unset( $config_files_for_themes[ $key ] );

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}

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$active_plugins_names = $this->get_active_plugin_provider()

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->get_active_plugin_names();

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foreach ( $plugins as $plugin ) {

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if ( in_array( $plugin->name, $active_plugins_names, true ) ) {

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unset( $deleted_configs_for_plugins[ $plugin->name ] );

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if ( ! isset( $config_files_for_plugins[ $plugin->name ] ) || md5( $config_files_for_plugins[ $plugin->name ] ) !== $plugin->hash ) {

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$plugin_response = $this->http->get( ICL_REMOTE_WPML_CONFIG_FILES_INDEX . $plugin->path, $request_args );

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if ( ! $this->is_a_valid_remote_response( $plugin_response ) ) {

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$this->log_response( $plugin_response, 'index', $plugin->name );

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} else {

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$config_files_for_plugins[ $plugin->name ] = $plugin_response['body'];

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}

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}

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}

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}

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foreach ( $deleted_configs_for_plugins as $key => $deleted_config ) {

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unset( $config_files_for_plugins[ $key ] );

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}

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if ( ! $config_files ) {

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$config_files = new stdClass();

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}

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$config_files->themes = $config_files_for_themes;

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$config_files->plugins = $config_files_for_plugins;

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update_option( 'wpml_config_files_arr', $config_files, false );

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}

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}

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$wpml_config_files_arr = maybe_unserialize( get_option( 'wpml_config_files_arr', null ) );

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if ( ! $wpml_config_files_arr ) {

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$this->log_response( 'Missing data', 'get_option', 'wpml_config_files_arr' );

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}

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if ( ! $this->has_errors && $this->log ) {

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$this->log->clear();

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}

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}

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return ! $this->has_errors;

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}

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private function is_valid_wpml_config_files_arr( $wpml_config_files_arr ) {

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$is_valid = true;

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$is_valid &= is_object( $wpml_config_files_arr );

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$at_least_plugins_or_themes = false;

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$at_least_plugins_or_themes |= isset( $wpml_config_files_arr->themes ) && is_array( $wpml_config_files_arr->themes ) && $wpml_config_files_arr->themes;

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$at_least_plugins_or_themes |= isset( $wpml_config_files_arr->plugins ) && is_array( $wpml_config_files_arr->plugins ) && $wpml_config_files_arr->plugins;

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return $is_valid && $at_least_plugins_or_themes;

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}

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/**

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* @param array|WP_Error $response

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* @return bool

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private function is_a_valid_remote_response( $response ) {

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return $response && ! is_wp_error( $response ) && ! $this->is_http_error( $response );

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}

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private function is_http_error( $response ) {

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return $response && is_array( $response )

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&& ( ( array_key_exists( 'response', $response )

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&& array_key_exists( 'code', $response['response'] )

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&& 200 !== (int) $response['response']['code'] )

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|| ! array_key_exists( 'body', $response )

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|| '' === trim( $response['body'] ) );

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}

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/**

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* @param string|array|WP_Error $response

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* @param string $request_type

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* @param null $component

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* @param array|stdClass|null $extra_data

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private function log_response( $response, $request_type = 'unknown', $component = null, $extra_data = null ) {

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if ( ! $this->log ) {

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return;

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}

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$message_type = 'message';

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if ( ! defined( 'JSON_PRETTY_PRINT' ) ) {

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//Fallback -> Introduced in PHP 5.4.0

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define( 'JSON_PRETTY_PRINT', 128 );

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}

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$response_data = null;

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if ( is_scalar( $response ) ) {

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$message_type = 'app_error';

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$response_data = $response;

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} elseif ( is_wp_error( $response ) ) {

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$message_type = 'wp_error';

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$response_data = array(

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'code' => $response->get_error_code(),

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'message' => $response->get_error_message(),

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);

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} elseif ( $this->is_http_error( $response ) ) {

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$message_type = 'http_error';

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if ( array_key_exists( 'response', $response ) ) {

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if ( array_key_exists( 'code', $response['response'] ) ) {

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$response_data['code'] = $response['response']['code'];

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}

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if ( array_key_exists( 'message', $response['response'] ) ) {

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$response_data['message'] = $response['response']['message'];

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}

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}

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$response_data['body'] = 'Missing!';

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if ( array_key_exists( 'body', $response ) ) {

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$response_data['body'] = 'Empty!';

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if ( $response['body'] ) {

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$response_data['body'] = json_decode( json_encode( simplexml_load_string( $response['body'] ) ), true );

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}

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}

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} elseif ( is_array( $response ) ) {

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$response_data = $response;

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} else {

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$response_data = array( wp_json_encode( $response, JSON_PRETTY_PRINT ) );

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}

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$serialized_extra_data = null;

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if ( $extra_data ) {

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$serialized_extra_data = $extra_data;

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if ( is_object( $serialized_extra_data ) ) {

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$serialized_extra_data = get_object_vars( $serialized_extra_data );

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}

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if ( ! is_array( $serialized_extra_data ) ) {

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$serialized_extra_data = array( wp_json_encode( $serialized_extra_data, JSON_PRETTY_PRINT ) );

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}

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}

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$entry = array(

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'request' => $request_type,

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'type' => $message_type,

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'component' => $component,

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'response' => $response_data,

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'extra' => $serialized_extra_data,

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);

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$this->log->insert( microtime( true ), $entry );

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$this->has_errors = true;

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}

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private function is_config_update_disabled() {

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if ( $this->sitepress->get_wp_api()

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->constant( 'ICL_REMOTE_WPML_CONFIG_DISABLED' ) ) {

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delete_option( 'wpml_config_index' );

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delete_option( 'wpml_config_index_updated' );

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delete_option( 'wpml_config_files_arr' );

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return true;

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}

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return false;

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}

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}

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