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<?php
/**
* @package Duplicator
* @copyright (c) 2022, Snap Creek LLC
*/
namespace Duplicator\Ajax;
use Plugin_Upgrader;
use Duplicator\Ajax\AjaxWrapper;
use Duplicator\Views\EducationElements;
use Exception;
use Duplicator\Libs\OneClickUpgrade\UpgraderSkin;
use DUP_Log;
use DUP_Settings;
use Duplicator\Core\Controllers\ControllersManager;
use Duplicator\Libs\Snap\SnapJson;
use Duplicator\Libs\Snap\SnapUtil;
class ServicesEducation extends AbstractAjaxService
{
const OPTION_KEY_ONE_CLICK_UPGRADE_OTH = 'duplicator_one_click_upgrade_oth';
const LICENSE_KEY_OPTION_AUTO_ACTIVE = 'duplicator_pro_license_auto_active';
const DUPLICATOR_STORE_URL = "https://duplicator.com";
const REMOTE_SUBSCRIBE_URL = 'https://duplicator.com/?lite_email_signup=1';
/**
* Init ajax calls
*
* @return void
*/
public function init()
{
$this->addAjaxCall('wp_ajax_duplicator_settings_callout_cta_dismiss', 'dismissCalloutCTA');
$this->addAjaxCall('wp_ajax_duplicator_packages_bottom_bar_dismiss', 'dismissBottomBar');
$this->addAjaxCall('wp_ajax_duplicator_email_subscribe', 'setEmailSubscribed');
$this->addAjaxCall('wp_ajax_duplicator_one_click_upgrade_prepare', 'prepareForOneClickUpgrade');
$this->addAjaxCall('wp_ajax_duplicator_finalize_oneclick_upr', 'finalizeOneClickUpgrade');
$this->addAjaxCall('wp_ajax_nopriv_duplicator_lite_run_one_click_upgrade', 'oneClickUpgrade');
$this->addAjaxCall('wp_ajax_duplicator_lite_run_one_click_upgrade', 'oneClickUpgrade');
$this->addAjaxCall('wp_ajax_duplicator_enable_usage_stats', 'enableUsageStats');
}
/**
* Set email subscribed
*
* @return bool
*/
public static function setEmailSubscribedCallback()
{
if (EducationElements::userIsSubscribed()) {
return true;
}
$email = filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL, FILTER_NULL_ON_FAILURE);
if (is_null($email)) {
throw new \Exception('Invalid email');
}
$response = wp_remote_post(self::REMOTE_SUBSCRIBE_URL, array(
'method' => 'POST',
'timeout' => 45,
'body' => array('email' => $email)
));
if (is_wp_error($response) || 200 !== wp_remote_retrieve_response_code($response)) {
$error_msg = $response->get_error_code() . ': ' . $response->get_error_message();
SnapUtil::errorLog($error_msg);
throw new \Exception($error_msg);
}
return (update_user_meta(get_current_user_id(), EducationElements::DUP_EMAIL_SUBSCRIBED_OPT_KEY, true) !== false);
}
/**
* Set recovery action
*
* @return void
*/
public function setEmailSubscribed()
{
AjaxWrapper::json(
array(__CLASS__, 'setEmailSubscribedCallback'),
'duplicator_email_subscribe',
$_POST['nonce'],
'export'
);
}
/**
* Set dismiss callout CTA callback
*
* @return bool
*/
public static function dismissCalloutCTACallback()
{
return (update_user_meta(get_current_user_id(), EducationElements::DUP_SETTINGS_FOOTER_CALLOUT_DISMISSED, true) !== false);
}
/**
* Dismiss callout CTA
*
* @return void
*/
public function dismissCalloutCTA()
{
AjaxWrapper::json(
array(__CLASS__, 'dismissCalloutCTACallback'),
'duplicator_settings_callout_cta_dismiss',
$_POST['nonce'],
'export'
);
}
/**
* Dismiss bottom bar callback
*
* @return bool
*/
public static function dismissBottomBarCallback()
{
return (update_user_meta(get_current_user_id(), EducationElements::DUP_PACKAGES_BOTTOM_BAR_DISMISSED, true) !== false);
}
/**
* Dismiss bottom bar
*
* @return void
*/
public function dismissBottomBar()
{
AjaxWrapper::json(
array(__CLASS__, 'dismissBottomBarCallback'),
'duplicator_packages_bottom_bar_dismiss',
$_POST['nonce'],
'export'
);
}
/**
* Generate oth and save it into a db option, save also license key into a db option.
* Returns all values necessary for creating a request to remote endpoint
*
* @throws Exception In case it failed to save data into db
* @return array Contains:
*/
public static function prepareForOneClickUpgradeCallback()
{
$oth = wp_generate_password(30, false, false); // Generate random oth
$licenseKey = sanitize_text_field($_REQUEST["license_key"]);
delete_option(self::OPTION_KEY_ONE_CLICK_UPGRADE_OTH);
delete_option(self::LICENSE_KEY_OPTION_AUTO_ACTIVE);
$ok1 = update_option(self::OPTION_KEY_ONE_CLICK_UPGRADE_OTH, $oth);
$ok2 = update_option(self::LICENSE_KEY_OPTION_AUTO_ACTIVE, $licenseKey);
if (!$ok1 || !$ok2) {
throw new Exception("Problem saving new parameters into options table in prepareForOneClickUpgradeCallback.");
}
$returnData = array();
$returnData["success"] = true;
$returnData["error_msg"] = "";
$returnData["oth"] = self::hashOth($oth);
$returnData["license_key"] = $licenseKey;
$returnData["version"] = DUPLICATOR_VERSION;
$returnData["redirect"] = base64_encode(admin_url('admin-ajax.php?action=duplicator_finalize_oneclick_upr'));
$returnData["endpoint"] = admin_url('admin-ajax.php');
$returnData["siteurl"] = admin_url();
$returnData["homeurl"] = home_url();
$returnData["response"] = ""; // Store response
$returnData["file"] = "";
// Activate license for this home_url. We can't use download link
// without first activating license.
$api_params = array(
'edd_action' => 'activate_license',
'license' => $licenseKey,
'item_name' => "Duplicator Pro", // the name of our product in EDD,
'url' => home_url()
);
global $wp_version;
$agent_string = "WordPress/" . $wp_version;
DUP_Log::trace("Wordpress agent string $agent_string");
$requestParam = array(
'timeout' => 15,
'sslverify' => true,
'user-agent' => $agent_string,
'body' => $api_params
);
if (($data = self::licenseUpgradeRequests($requestParam, $requestError)) === false) {
throw new Exception($requestError['message']);
} elseif (!isset($data->license) || $data->license != 'valid') {
throw new Exception(__('Invalid license key.', 'duplicator'));
}
// Fetch direct url and set $returnData["file"]. It is a direct url to download the upgrade version.
// It can be used only after license is activated for the given website.
$api_params = array(
'edd_action' => 'get_version',
'license' => $licenseKey,
'item_name' => "Duplicator Pro",
'slug' => "duplicator-pro",
'author' => "Snap Creek Software",
'url' => home_url(),
'beta' => false,
'php_version' => phpversion(),
'wp_version' => get_bloginfo('version'),
);
$requestParam = array(
'timeout' => 15,
'sslverify' => true,
'body' => $api_params,
);
if (($data = self::licenseUpgradeRequests($requestParam, $requestError)) === false) {
throw new Exception($requestError['message']);
} elseif (!isset($data->download_link) || empty($data->download_link)) {
throw new Exception('License key download URL is invalid');
}
$returnData["file"] = base64_encode($data->download_link);
return $returnData;
}
/**
* Returh hashed OTH
*
* @param string $oth OTH
*
* @return string Hashed OTH
*/
protected static function hashOth($oth)
{
return hash_hmac('sha512', $oth, wp_salt());
}
/**
* License upgrade requests
*
* @param array $params Parameters
* @param array $requestError Request error
*
* @return false|object False on error, array data on success
*/
protected static function licenseUpgradeRequests($params, &$requestError = array())
{
try {
$requestError = array(
'code' => -1,
'message' => '',
'details' => '',
);
$response = wp_remote_post(self::DUPLICATOR_STORE_URL, $params);
if (is_wp_error($response)) {
/** @var WP_Error $response */
$requestError['code'] = $response->get_error_code();
$requestError['message'] = $response->get_error_message();
$requestError['details'] = SnapJson::jsonEncodePPrint($response->get_error_data());
} elseif ($response['response']['code'] < 200 || $response['response']['code'] >= 300) {
$requestError['code'] = $response['response']['code'];
$requestError['message'] = $response['response']['message'];
$requestError['details'] = SnapJson::jsonEncodePPrint($response);
} else {
$data = json_decode(wp_remote_retrieve_body($response));
if (!is_object($data)) {
$requestError['code'] = -1;
$requestError['message'] = __('Invalid license JSON data.', 'duplicator');
$requestError['details'] = 'Response: ' . wp_remote_retrieve_body($response);
} else {
return $data;
}
}
} catch (Exception $e) {
$requestError['code'] = -1;
$requestError['message'] = 'Exception ' . $e->getMessage();
$requestError['details'] = $e->getTraceAsString();
}
return false;
}
/**
* Enable usage stats
*
* @return void
*/
public function enableUsageStats()
{
AjaxWrapper::json(
array(__CLASS__, 'enableUsageStatsCallback'),
'duplicator_enable_usage_stats',
SnapUtil::sanitizeTextInput(INPUT_POST, 'nonce'),
'manage_options'
);
}
/**
* Enable usage stats callback
*
* @return void
*/
public static function enableUsageStatsCallback()
{
$result = true;
if (DUP_Settings::Get('usage_tracking') !== true) {
DUP_Settings::setUsageTracking(true);
$result = DUP_Settings::Save();
}
return $result && self::setEmailSubscribedCallback();
}
/**
* Prepare for One Click Upgrade from Lite to Pro
*
* @return void
*/
public function prepareForOneClickUpgrade()
{
AjaxWrapper::json(
array(__CLASS__, 'prepareForOneClickUpgradeCallback'),
'duplicator_one_click_upgrade_prepare',
$_POST['nonce'],
'export'
);
}
/**
* Accepts oth and file from remote endpoint, installs Pro if it's not already installed.
* Prints json with error=true or success=true.
*
* @return void
*/
public function oneClickUpgrade()
{
$othReceived = sanitize_text_field($_REQUEST["oth"]);
$oth = get_option(self::OPTION_KEY_ONE_CLICK_UPGRADE_OTH);
if (self::hashOth($oth) !== $othReceived) { // Verify that oth is fine
DUP_Log::trace("ERROR: Wrong oth token.");
wp_send_json_error(array('message' => 'Invalid security token'));
}
// Verify upgrade version is not installed
if (!is_dir(WP_PLUGIN_DIR . "/duplicator-pro")) {
DUP_Log::trace("There is no upgrade version in plugins directory, we need to download it!");
// Prepare variables.
$url = esc_url_raw(
add_query_arg(
array( 'page' => 'duplicator-settings' ),
admin_url('admin.php')
)
);
$creds = request_filesystem_credentials($url, '', false, false, null);
// Check for file system permissions.
if (false === $creds || ! \WP_Filesystem($creds)) {
wp_send_json_error(array('message' => 'File system permissions error. Please check permissions and try again.'));
}
// We do not need any extra credentials if we have gotten this far, so let's install the plugin.
require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
// Do not allow WordPress to search/download translations, as this will break JS output.
remove_action('upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20);
// Get license key and fetch download URL
$license_key = get_option(self::LICENSE_KEY_OPTION_AUTO_ACTIVE);
if (empty($license_key)) {
DUP_Log::trace("ERROR: No license key found for upgrade.");
wp_send_json_error(array('message' => 'No license key found for upgrade'));
}
// Get download URL from license API
$api_params = array(
'edd_action' => 'get_version',
'license' => $license_key,
'item_name' => "Duplicator Pro",
'slug' => "duplicator-pro",
'author' => "Snap Creek Software",
'url' => home_url(),
'beta' => false,
'php_version' => phpversion(),
'wp_version' => get_bloginfo('version'),
);
global $wp_version;
$agent_string = "WordPress/" . $wp_version;
$requestParam = array(
'timeout' => 15,
'sslverify' => true,
'user-agent' => $agent_string,
'body' => $api_params
);
if (($data = self::licenseUpgradeRequests($requestParam, $requestError)) === false) {
DUP_Log::trace("ERROR: Failed to get download URL: " . $requestError['message']);
wp_send_json_error(array('message' => 'Failed to get download URL: ' . $requestError['message']));
}
if (empty($data->download_link)) {
DUP_Log::trace("ERROR: No download link returned from license API.");
wp_send_json_error(array('message' => 'No download link returned from license API'));
}
$download_url = $data->download_link;
// Create the plugin upgrader with custom skin.
$installer = new Plugin_Upgrader(new UpgraderSkin());
$installer->install($download_url); // Use validated download URL from license API
// Flush the cache and return the newly installed plugin basename.
wp_cache_flush();
$plugin_basename = $installer->plugin_info();
if ($plugin_basename) {
$upgradeDir = dirname($plugin_basename);
if (
$upgradeDir != "duplicator-pro" &&
!rename(WP_PLUGIN_DIR . "/" . $upgradeDir, WP_PLUGIN_DIR . "/duplicator-pro")
) {
wp_send_json_error(array('message' => 'Failed renaming plugin directory'));
}
} else {
wp_send_json_error(array('message' => 'Installation of upgrade version failed'));
}
}
wp_send_json_success(array('message' => 'Plugin exists and is ready to be activated'));
}
/**
* Checks if duplicator-pro exists. If it does not, then it redirects to Lite settings license page.
* Otherwise deactivates Lite and redirects to upgrade plugin activation link.
*
* @return void
*/
public function finalizeOneClickUpgrade()
{
$othReceived = sanitize_text_field($_REQUEST["oth"]);
$oth = get_option(self::OPTION_KEY_ONE_CLICK_UPGRADE_OTH);
$newFolder = WP_PLUGIN_DIR . "/duplicator-pro";
if (!current_user_can('activate_plugins') || (self::hashOth($oth) !== $othReceived)) {
$duplicatorPage = ControllersManager::getMenuLink(
ControllersManager::PACKAGES_SUBMENU_SLUG,
null,
null,
['action' => 'upgrade_finalize_fail']
);
wp_safe_redirect($duplicatorPage);
exit;
}
delete_option(self::OPTION_KEY_ONE_CLICK_UPGRADE_OTH);
if (!is_dir($newFolder)) {
$licensePageUrl = ControllersManager::getMenuLink(
ControllersManager::SETTINGS_SUBMENU_SLUG,
'general'
);
header("Location: $licensePageUrl");
die();
}
deactivate_plugins(DUPLICATOR_PLUGIN_PATH . "/duplicator.php");
$plugin = "duplicator-pro/duplicator-pro.php";
$pluginsAdminUrl = is_multisite() ? network_admin_url('plugins.php') : admin_url('plugins.php');
$activateProUrl = esc_url_raw(
add_query_arg(
array(
'action' => 'activate',
'plugin' => $plugin,
'_wpnonce' => wp_create_nonce("activate-plugin_$plugin")
),
$pluginsAdminUrl
)
);
header("Location: $activateProUrl");
die();
// $activated = activate_plugin($plugin, '', true, true); // This won't work
}
}