Sindbad~EG File Manager
<?php
/**
* Connect service.
*
* @package PopupMaker
* @copyright Copyright (c) 2024, Code Atlantic LLC
*/
namespace PopupMaker\Services;
use PopupMaker\Base\Service;
use function PopupMaker\plugin;
defined( 'ABSPATH' ) || exit;
/**
* Connection management.
*
* NOTE: For wordpress.org admins: This is not called in the free, hosted version. This is only used if:
* - The user explicitly entered a license key.
* - This then opens a window to our site allowing the user to authorize one-time oauth-style connection & installation of pro.
*
* @package PopupMaker
*/
class Connect extends Service {
const API_URL = 'https://upgrade.wppopupmaker.com/';
const TOKEN_OPTION_NAME = 'popup_maker_connect_token';
const NONCE_OPTION_NAME = 'popup_maker_connect_nonce';
const ERROR_REFERRER = 1;
const ERROR_AUTHENTICATION = 2;
const ERROR_USER_AGENT = 3;
const ERROR_SIGNATURE = 4;
const ERROR_NONCE = 5;
const ERROR_WEBHOOK_ARGS = 6;
/**
* Check if debug mode is enabled.
*
* @return bool
*/
public function debug_mode_enabled() {
return defined( '\WP_DEBUG' ) && \WP_DEBUG;
}
/**
* Generate a new authorizatin token.
*
* @return string
*/
public function generate_token() {
$token = hash( 'sha512', (string) wp_rand() );
\set_site_transient( self::TOKEN_OPTION_NAME, $token, HOUR_IN_SECONDS );
return $token;
}
/**
* Get the current token.
*
* @return string|false
*/
public function get_access_token() {
return \get_site_transient( self::TOKEN_OPTION_NAME );
}
/**
* Get the current nonce.
*
* @param string $token Token.
*
* @return string|false
*/
public function get_nonce_name( $token ) {
return self::NONCE_OPTION_NAME . '_' . $token;
}
/**
* Log a message to the debug log if enabled.
*
* Here to prevent constant conditional checks for the debug mode.
*
* @param string $message Message.
* @param string $type Type.
*
* @return void
*/
public function debug_log( $message, $type = 'INFO' ) {
if ( $this->debug_mode_enabled() ) {
plugin( 'logging' )->log( "Plugin\Connect.$type: $message" );
}
}
/**
* Get header Authorization
*
* @return null|string
*/
public function get_request_authorization_header() {
$headers = null;
if ( isset( $_SERVER['Authorization'] ) ) {
$headers = trim( sanitize_text_field( wp_unslash( $_SERVER['Authorization'] ) ) );
} elseif ( isset( $_SERVER['HTTP_AUTHORIZATION'] ) ) { // Nginx or fast CGI.
$headers = trim( sanitize_text_field( wp_unslash( $_SERVER['HTTP_AUTHORIZATION'] ) ) );
} elseif ( function_exists( 'apache_request_headers' ) ) {
$request_headers = apache_request_headers();
// Server-side fix for bug in old Android versions (a nice side-effect of this fix means we don't care about capitalization for Authorization).
$request_headers = array_combine( array_map( 'ucwords', array_keys( $request_headers ) ), array_values( $request_headers ) );
if ( isset( $request_headers['Authorization'] ) ) {
$headers = trim( $request_headers['Authorization'] );
}
}
// Fallback: Some servers strip Authorization headers, check for custom headers
if ( ! $headers ) {
$fallback_headers = [
'HTTP_X_AUTH_TOKEN' => 'X-Auth-Token',
'HTTP_X_AUTH_TOKEN_UC' => 'X-AUTH-TOKEN (uppercase)', // This won't match, but keeping for clarity
'HTTP_HTTP_X_AUTH_TOKEN' => 'HTTP_X_AUTH_TOKEN (server format)',
];
foreach ( $fallback_headers as $server_key => $header_name ) {
if ( isset( $_SERVER[ $server_key ] ) ) {
$token = sanitize_text_field( wp_unslash( $_SERVER[ $server_key ] ) );
$headers = 'Bearer ' . $token;
// Using fallback header.
break;
}
}
}
return $headers;
}
/**
* Get access token from header.
*
* @return string|null
*/
public function get_request_token() {
$headers = $this->get_request_authorization_header();
// HEADER: Get the access token from the header.
if ( ! empty( $headers ) ) {
if ( preg_match( '/Bearer\s(\S+)/', $headers, $matches ) ) {
return trim( $matches[1], ', ' );
}
}
return null;
}
/**
* Get nonce from header.
*
* @return string|null
*/
public function get_request_nonce() {
$headers = $this->get_request_authorization_header();
// HEADER: Get the nonce from the header.
if ( ! empty( $headers ) ) {
if ( preg_match( '/Nonce\s(\S+)/', $headers, $matches ) ) {
return trim( $matches[1], ', ' );
}
}
return null;
}
/**
* Get the OAuth connect URL.
*
* @param string $license_key License key.
*
* @return array{url:string,back_url:string}
*/
public function get_connect_info( $license_key ) {
$token = $this->generate_token();
$nonce = wp_create_nonce( $this->get_nonce_name( $token ) );
$webhook = rest_url( 'popup-maker/v2/connect/install' );
$redirect = add_query_arg(
[
'post_type' => 'popup',
'page' => 'pum-settings',
// TODO This should be set to the Pro upgrade page?
'view' => 'upgrade',
'tab' => 'general',
],
admin_url( 'edit.php' )
);
$url = add_query_arg(
[
'key' => $license_key,
'token' => $token,
'nonce' => $nonce,
'webhook' => $webhook,
'version' => plugin( 'version' ),
'siteurl' => admin_url(),
'homeurl' => home_url(),
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
'redirect' => rawurlencode( base64_encode( $redirect ) ),
],
self::API_URL
);
$this->debug_log( 'Generated new connection.' );
$this->debug_log( 'Token: ' . $token );
$this->debug_log( 'Nonce: ' . $nonce );
$this->debug_log( 'Redirect URL: ' . $redirect );
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
$this->debug_log( 'Base64 Redirect: ' . base64_encode( $redirect ) );
$this->debug_log( 'Final URL: ' . $url );
return [
'url' => $url,
'back_url' => add_query_arg(
[
'action' => 'popup_maker_connect',
'token' => $token,
],
$webhook
),
];
}
/**
* Kill the connection with no permission.
*
* @param int $error_no Error number.
* @param string|false $message Error message.
*
* @return void
*/
public function kill_connection( $error_no = self::ERROR_REFERRER, $message = false ) {
$this->debug_log( "Killing connection with error ($error_no) message: " . $message, 'ERROR' );
wp_die(
esc_html(
$this->debug_mode_enabled() && $message ?
$message :
__( 'Sorry, You Are Not Allowed to Access This Page.', 'popup-maker' )
),
esc_attr( (string) $error_no ),
[ 'response' => 403 ]
);
}
/**
* Verify the user agent.
*
* @return void
*/
public function verify_user_agent() {
// Check user agent matches Popup Maker Upgrader.
$user_agent = isset( $_SERVER['HTTP_USER_AGENT'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_USER_AGENT'] ) ) : '';
if ( strpos( $user_agent, 'PopupMakerUpgrader' ) !== 0 ) {
$this->kill_connection( self::ERROR_USER_AGENT, 'User agent invalid: ' . $user_agent );
}
}
/**
* Verify the referrer.
*
* @return void
*/
public function verify_referrer() {
$referer = isset( $_SERVER['HTTP_X_SENDING_DOMAIN'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_X_SENDING_DOMAIN'] ) ) : '';
if ( ! $referer ) {
$this->kill_connection( self::ERROR_REFERRER, 'Missing referrer' );
}
$referer_host = wp_parse_url( $referer, PHP_URL_HOST );
if ( ! $referer_host ) {
$this->kill_connection( self::ERROR_REFERRER, 'Invalid referrer' );
}
$allowed_hosts = [
'wppopupmaker.com',
'upgrade.wppopupmaker.com',
];
if ( ! in_array( $referer_host, $allowed_hosts, true ) ) {
$this->kill_connection( self::ERROR_REFERRER, 'Referrer doesn\'t match' );
}
}
/**
* Verify the nonce.
*
* @deprecated 2.0.0 Don't use, it doesn't work as its a separate server making request.
*
* @return void
*/
public function verify_nonce() {
$token = $this->get_access_token();
$nonce = $this->get_request_nonce();
if ( ! $nonce ) {
$this->kill_connection( self::ERROR_NONCE, 'Missing nonce' );
}
if ( false === wp_verify_nonce( $nonce, $this->get_nonce_name( $token ) ) ) {
$this->debug_log( 'Nonce mismatch: ' . $nonce, 'DEBUG' );
$this->debug_log( 'Nonce Name: ' . $this->get_nonce_name( $token ) );
$this->kill_connection( self::ERROR_NONCE, 'Invalid nonce' );
}
}
/**
* Verify the authentication token.
*
* @return void
*/
public function verify_authentication() {
// Get token from header Bearer.
$token = $this->get_access_token();
$auth_token = $this->get_request_token();
if ( ! $token || ! $auth_token ) {
$this->kill_connection( self::ERROR_AUTHENTICATION, 'Missing authentication' );
}
// Verify hashes match.
if ( ! hash_equals( $token, $auth_token ) ) {
$this->kill_connection( self::ERROR_AUTHENTICATION, 'Invalid authentication' );
}
}
/**
* Generate signature hash.
*
* This must match the hash generated on the server.
*
* @see \PopupMakerUpgrader\App::generate_hash()
*
* @param array<string,mixed>|string $data Data to hash.
* @param string $token Token to hash with.
* @return string
*/
public function generate_hash( $data, $token ) {
// Convert boolean values to their string representation.
array_walk_recursive($data, function ( &$value ) {
if ( is_bool( $value ) ) {
$value = $value ? '1' : '0';
}
});
if ( ! is_string( $data ) ) {
// Sort the array before encoding it as JSON.
ksort( $data );
// Ignored due to wp_json_encode stripping slashes and breaking hashes.
// phpcs:ignore WordPress.WP.AlternativeFunctions.json_encode_json_encode
$data = json_encode( $data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE );
}
// Generate the hash binary.
$hash = hash_hmac( 'sha256', $data, $token, true );
// Generate HMAC-SHA256 signature.
// Encode the hash in base64 to make it URL safe.
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
return base64_encode( $hash );
}
/**
* Verify the signature of the requester.
*
* @return void
*/
public function verify_signature() {
if ( ! isset( $_SERVER['HTTP_X_POPUPMAKER_SIGNATURE'] ) ) {
$this->kill_connection( self::ERROR_SIGNATURE, 'Missing signature' );
}
// Verify the webhook signature.
$signature = sanitize_text_field( wp_unslash( $_SERVER['HTTP_X_POPUPMAKER_SIGNATURE'] ) );
// Get the request data for signature calculation.
$request_data = json_decode( file_get_contents( 'php://input' ), true );
// Fallback to $_POST if JSON body is empty (backwards compatibility).
if ( empty( $request_data ) ) {
// phpcs:ignore WordPress.Security.NonceVerification.Missing
$request_data = $_POST;
}
// Calculate the expected signature.
$expected_signature = $this->generate_hash( $request_data, $this->get_access_token() );
// Compare the expected signature to the received signature.
if ( ! hash_equals( $expected_signature, $signature ) ) {
$this->kill_connection( self::ERROR_SIGNATURE, 'Invalid signature' );
}
}
/**
* Validate the connection.
*
* @return void
*/
public function validate_connection() {
// Validate connection security layers.
$this->verify_user_agent();
$this->verify_referrer();
$this->verify_authentication();
$this->verify_signature();
}
/**
* Verify the connection.
*
* @return void
*/
public function process_verify_connection() {
$this->validate_connection();
wp_send_json_success();
}
/**
* Get the webhook args.
*
* @return array{file:string,type:string,slug:string,force:boolean}
*/
public function get_webhook_args() {
// First try to get data from JSON body (modern REST API approach)
$json_data = json_decode( file_get_contents( 'php://input' ), true );
if ( is_array( $json_data ) && ! empty( $json_data ) ) {
$this->debug_log( 'Using JSON body data for webhook args', 'DEBUG' );
$this->debug_log( 'JSON data: ' . wp_json_encode( $json_data, JSON_PRETTY_PRINT ), 'DEBUG' );
$args = [
'file' => ! empty( $json_data['file'] ) ? esc_url_raw( $json_data['file'] ) : '',
'type' => ! empty( $json_data['type'] ) ? sanitize_text_field( $json_data['type'] ) : 'plugin',
'slug' => ! empty( $json_data['slug'] ) ? sanitize_text_field( $json_data['slug'] ) : '',
'force' => ! empty( $json_data['force'] ) ? (bool) $json_data['force'] : false,
];
} else {
// Fallback to $_REQUEST for backwards compatibility
$this->debug_log( 'Using $_REQUEST data for webhook args', 'DEBUG' );
$args = [
// phpcs:disable WordPress.Security.NonceVerification.Recommended
'file' => ! empty( $_REQUEST['file'] ) ? esc_url_raw( wp_unslash( $_REQUEST['file'] ) ) : '',
'type' => ! empty( $_REQUEST['type'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['type'] ) ) : 'plugin',
'slug' => ! empty( $_REQUEST['slug'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['slug'] ) ) : '',
'force' => ! empty( $_REQUEST['force'] ) ? (bool) $_REQUEST['force'] : false,
// phpcs:enable WordPress.Security.NonceVerification.Recommended
];
}
$this->debug_log( 'Parsed webhook args: ' . wp_json_encode( $args, JSON_PRETTY_PRINT ), 'DEBUG' );
$this->verify_webhook_args( $args );
return $args;
}
/**
* Verify and return webhook args.
*
* @param array{file:string,type:string,slug:string,force:bool} $args The webhook args.
*
* @return void
*/
public function verify_webhook_args( $args ) {
$file_url = ! empty( $args['file'] ) ? $args['file'] : false;
$file_type = ! empty( $args['type'] ) ? $args['type'] : false;
$file_slug = ! empty( $args['slug'] ) ? $args['slug'] : false;
$force = ! empty( $args['force'] ) ? (bool) $args['force'] : false;
if ( ! $file_url || ! $file_type || ! $file_slug ) {
$this->kill_connection( self::ERROR_WEBHOOK_ARGS, 'Missing webhook args' );
}
if ( ! in_array( $file_type, [ 'plugin', 'theme' ], true ) ) {
$this->kill_connection( self::ERROR_WEBHOOK_ARGS, 'Invalid webhook args' );
}
}
/**
* Listen for incoming secure webhooks from the API server.
*
* @return void
*/
public function process_webhook() {
// 1. Validate the connection is secure & from the API server.
$this->validate_connection();
$error = esc_html__( 'There was an error while installing an upgrade. Please download the plugin from wppopupmaker.com and install it manually.', 'popup-maker' );
// 2. Get the webhook data.
$args = $this->get_webhook_args();
// 3. Validate license key.
if ( ! plugin( 'license' )->is_license_active() ) {
$this->debug_log( 'License not active', 'DEBUG' );
wp_send_json_error( $error );
}
// Set the current screen to avoid undefined notices.
set_current_screen( 'settings_page_popup-maker-settings' );
// 4. Install the plugin.
switch ( $args['type'] ) {
case 'plugin':
$this->install_plugin( $args );
break;
}
// 5. Delete the token to prevent abuse. Doing so last means it should be possible to retry if something goes wrong.
if ( ! $this->debug_mode_enabled() ) {
$this->debug_log( 'Deleting token', 'DEBUG' );
\delete_site_transient( self::TOKEN_OPTION_NAME );
}
}
/**
* Install a plugin.
*
* @param array{file:string,type:string,slug:string,force:bool} $args The file args.
* @return void
*/
public function install_plugin( $args ) {
$this->debug_log( 'Installing plugin...', 'DEBUG' );
// If not forcing, and already active, return success.
if ( ! $args['force'] && is_plugin_active( "{$args['slug']}/{$args['slug']}.php" ) ) {
$this->debug_log( 'Plugin already installed & active.', 'DEBUG' );
wp_send_json_success( esc_html__( 'Plugin installed & activated.', 'popup-maker' ) );
}
// Get the upgrader.
$upgrader = $this->container->get( 'upgrader' );
// Install the plugin. (if installed already, this will replace it using upgrade).
$installed = $upgrader->install_plugin( $args['file'] );
if ( ! is_wp_error( $installed ) ) {
$this->debug_log( 'Plugin installed & activated successfully.', 'DEBUG' );
wp_send_json_success( esc_html__( 'Plugin installed & activated.', 'popup-maker' ) );
}
switch ( $installed->get_error_code() ) {
default:
$error = $installed->get_error_message();
}
if ( empty( $error ) ) {
$error = esc_html__( 'There was an error while installing an upgrade. Please download the plugin from wppopupmaker.com and install it manually.', 'popup-maker' );
}
$this->debug_log( 'Plugin install failed: ' . $error, 'DEBUG' );
wp_send_json_error( $installed->get_error_message() );
}
/**
* Verify webhook request for REST API.
*
* Validates webhook requests coming through REST endpoints.
* This method performs the same security checks as the AJAX webhook
* but is designed for REST API integration.
*
* @param \WP_REST_Request $request REST request object.
* @return array{valid:bool,error:string|null}
*/
public function verify_webhook_request( $request ) {
$this->debug_log( 'Verifying webhook request via REST API...', 'DEBUG' );
try {
// Validate the connection security.
$this->validate_connection();
// Validate license is active.
if ( ! plugin( 'license' )->is_license_active() ) {
$this->debug_log( 'License not active for webhook request', 'DEBUG' );
return [
'valid' => false,
'error' => 'License not active',
];
}
$this->debug_log( 'Webhook request verified successfully', 'DEBUG' );
return [
'valid' => true,
'error' => null,
];
} catch ( \Exception $e ) {
$this->debug_log( 'Webhook verification failed: ' . $e->getMessage(), 'ERROR' );
return [
'valid' => false,
'error' => $e->getMessage(),
];
}
}
/**
* Generate webhook URL for REST endpoints.
*
* Creates properly formatted webhook URLs for REST API endpoints
* with appropriate namespace and security parameters.
*
* @param string $endpoint The REST endpoint (e.g., 'connect/verify', 'upgrade/install').
* @param array $args Additional query arguments.
* @return string The webhook URL.
*/
public function generate_webhook_url( $endpoint, $args = [] ) {
// Generate security token.
$token = $this->generate_token();
$nonce = wp_create_nonce( $this->get_nonce_name( $token ) );
// Base REST URL with our namespace.
$base_url = rest_url( 'popup-maker/v2/' . ltrim( $endpoint, '/' ) );
// Add security parameters.
$default_args = [
'token' => $token,
'nonce' => $nonce,
];
$query_args = array_merge( $default_args, $args );
$webhook_url = add_query_arg( $query_args, $base_url );
$this->debug_log( 'Generated webhook URL: ' . $webhook_url );
$this->debug_log( 'Token: ' . $token );
$this->debug_log( 'Nonce: ' . $nonce );
return $webhook_url;
}
}
Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists