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<?php
/**
* WooCommerce Auth
*
* Handles wc-auth endpoint requests.
*
* @author WooThemes
* @category API
* @package WooCommerce/API
* @since 2.4.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
class WC_Auth {
/**
* Version.
*
* @var int
*/
const VERSION = 1;
/**
* Setup class.
*
* @since 2.4.0
*/
public function __construct() {
// Add query vars
add_filter( 'query_vars', array( $this, 'add_query_vars' ), 0 );
// Register auth endpoint
add_action( 'init', array( __CLASS__, 'add_endpoint' ), 0 );
// Handle auth requests
add_action( 'parse_request', array( $this, 'handle_auth_requests' ), 0 );
}
/**
* Add query vars.
*
* @since 2.4.0
*
* @param array $vars
*
* @return string[]
*/
public function add_query_vars( $vars ) {
$vars[] = 'wc-auth-version';
$vars[] = 'wc-auth-route';
return $vars;
}
/**
* Add auth endpoint.
*
* @since 2.4.0
*/
public static function add_endpoint() {
add_rewrite_rule( '^wc-auth/v([1]{1})/(.*)?', 'index.php?wc-auth-version=$matches[1]&wc-auth-route=$matches[2]', 'top' );
}
/**
* Get scope name.
*
* @since 2.4.0
*
* @param string $scope
*
* @return string
*/
protected function get_i18n_scope( $scope ) {
$permissions = array(
'read' => __( 'Read', 'woocommerce' ),
'write' => __( 'Write', 'woocommerce' ),
'read_write' => __( 'Read/Write', 'woocommerce' ),
);
return $permissions[ $scope ];
}
/**
* Return a list of permissions a scope allows.
*
* @since 2.4.0
*
* @param string $scope
*
* @return array
*/
protected function get_permissions_in_scope( $scope ) {
$permissions = array();
switch ( $scope ) {
case 'read' :
$permissions[] = __( 'View coupons', 'woocommerce' );
$permissions[] = __( 'View customers', 'woocommerce' );
$permissions[] = __( 'View orders and sales reports', 'woocommerce' );
$permissions[] = __( 'View products', 'woocommerce' );
break;
case 'write' :
$permissions[] = __( 'Create webhooks', 'woocommerce' );
$permissions[] = __( 'Create coupons', 'woocommerce' );
$permissions[] = __( 'Create customers', 'woocommerce' );
$permissions[] = __( 'Create orders', 'woocommerce' );
$permissions[] = __( 'Create products', 'woocommerce' );
break;
case 'read_write' :
$permissions[] = __( 'Create webhooks', 'woocommerce' );
$permissions[] = __( 'View and manage coupons', 'woocommerce' );
$permissions[] = __( 'View and manage customers', 'woocommerce' );
$permissions[] = __( 'View and manage orders and sales reports', 'woocommerce' );
$permissions[] = __( 'View and manage products', 'woocommerce' );
break;
}
return apply_filters( 'woocommerce_api_permissions_in_scope', $permissions, $scope );
}
/**
* Build auth urls.
*
* @since 2.4.0
*
* @param array $data
* @param string $endpoint
*
* @return string
*/
protected function build_url( $data, $endpoint ) {
$url = wc_get_endpoint_url( 'wc-auth/v' . self::VERSION, $endpoint, home_url( '/' ) );
return add_query_arg( array(
'app_name' => wc_clean( $data['app_name'] ),
'user_id' => wc_clean( $data['user_id'] ),
'return_url' => urlencode( $this->get_formatted_url( $data['return_url'] ) ),
'callback_url' => urlencode( $this->get_formatted_url( $data['callback_url'] ) ),
'scope' => wc_clean( $data['scope'] ),
), $url );
}
/**
* Decode and format a URL.
* @param string $url
* @return string
*/
protected function get_formatted_url( $url ) {
$url = urldecode( $url );
if ( ! strstr( $url, '://' ) ) {
$url = 'https://' . $url;
}
return $url;
}
/**
* Make validation.
*
* @since 2.4.0
*/
protected function make_validation() {
$params = array(
'app_name',
'user_id',
'return_url',
'callback_url',
'scope',
);
foreach ( $params as $param ) {
if ( empty( $_REQUEST[ $param ] ) ) {
/* translators: %s: parameter */
throw new Exception( sprintf( __( 'Missing parameter %s', 'woocommerce' ), $param ) );
}
}
if ( ! in_array( $_REQUEST['scope'], array( 'read', 'write', 'read_write' ) ) ) {
/* translators: %s: scope */
throw new Exception( sprintf( __( 'Invalid scope %s', 'woocommerce' ), wc_clean( $_REQUEST['scope'] ) ) );
}
foreach ( array( 'return_url', 'callback_url' ) as $param ) {
$param = $this->get_formatted_url( $_REQUEST[ $param ] );
if ( false === filter_var( $param, FILTER_VALIDATE_URL ) ) {
/* translators: %s: url */
throw new Exception( sprintf( __( 'The %s is not a valid URL', 'woocommerce' ), $param ) );
}
}
$callback_url = $this->get_formatted_url( $_REQUEST['callback_url'] );
if ( 0 !== stripos( $callback_url, 'https://' ) ) {
throw new Exception( __( 'The callback_url need to be over SSL', 'woocommerce' ) );
}
}
/**
* Create keys.
*
* @since 2.4.0
*
* @param string $app_name
* @param string $app_user_id
* @param string $scope
*
* @return array
*/
protected function create_keys( $app_name, $app_user_id, $scope ) {
global $wpdb;
/* translators: 1: app name 2: scope 3: date 4: time */
$description = sprintf(
__( '%1$s - API %2$s (created on %3$s at %4$s).', 'woocommerce' ),
wc_clean( $app_name ),
$this->get_i18n_scope( $scope ),
date_i18n( wc_date_format() ),
date_i18n( wc_time_format() )
);
$user = wp_get_current_user();
// Created API keys.
$permissions = ( in_array( $scope, array( 'read', 'write', 'read_write' ) ) ) ? sanitize_text_field( $scope ) : 'read';
$consumer_key = 'ck_' . wc_rand_hash();
$consumer_secret = 'cs_' . wc_rand_hash();
$wpdb->insert(
$wpdb->prefix . 'woocommerce_api_keys',
array(
'user_id' => $user->ID,
'description' => $description,
'permissions' => $permissions,
'consumer_key' => wc_api_hash( $consumer_key ),
'consumer_secret' => $consumer_secret,
'truncated_key' => substr( $consumer_key, -7 ),
),
array(
'%d',
'%s',
'%s',
'%s',
'%s',
'%s',
)
);
return array(
'key_id' => $wpdb->insert_id,
'user_id' => $app_user_id,
'consumer_key' => $consumer_key,
'consumer_secret' => $consumer_secret,
'key_permissions' => $permissions,
);
}
/**
* Post consumer data.
*
* @since 2.4.0
*
* @param array $consumer_data
* @param string $url
*
* @return bool
* @throws Exception
*/
protected function post_consumer_data( $consumer_data, $url ) {
$params = array(
'body' => json_encode( $consumer_data ),
'timeout' => 60,
'headers' => array(
'Content-Type' => 'application/json;charset=' . get_bloginfo( 'charset' ),
),
);
$response = wp_safe_remote_post( esc_url_raw( $url ), $params );
if ( is_wp_error( $response ) ) {
throw new Exception( $response->get_error_message() );
} elseif ( 200 != $response['response']['code'] ) {
throw new Exception( __( 'An error occurred in the request and at the time were unable to send the consumer data', 'woocommerce' ) );
}
return true;
}
/**
* Handle auth requests.
*
* @since 2.4.0
*/
public function handle_auth_requests() {
global $wp;
if ( ! empty( $_GET['wc-auth-version'] ) ) {
$wp->query_vars['wc-auth-version'] = $_GET['wc-auth-version'];
}
if ( ! empty( $_GET['wc-auth-route'] ) ) {
$wp->query_vars['wc-auth-route'] = $_GET['wc-auth-route'];
}
// wc-auth endpoint requests
if ( ! empty( $wp->query_vars['wc-auth-version'] ) && ! empty( $wp->query_vars['wc-auth-route'] ) ) {
$this->auth_endpoint( $wp->query_vars['wc-auth-route'] );
}
}
/**
* Auth endpoint.
*
* @since 2.4.0
*
* @param string $route
*/
protected function auth_endpoint( $route ) {
ob_start();
$consumer_data = array();
try {
if ( 'yes' !== get_option( 'woocommerce_api_enabled' ) ) {
throw new Exception( __( 'API disabled!', 'woocommerce' ) );
}
$route = strtolower( wc_clean( $route ) );
$this->make_validation();
// Login endpoint
if ( 'login' == $route && ! is_user_logged_in() ) {
wc_get_template( 'auth/form-login.php', array(
'app_name' => $_REQUEST['app_name'],
'return_url' => add_query_arg( array( 'success' => 0, 'user_id' => wc_clean( $_REQUEST['user_id'] ) ), $this->get_formatted_url( $_REQUEST['return_url'] ) ),
'redirect_url' => $this->build_url( $_REQUEST, 'authorize' ),
) );
exit;
// Redirect with user is logged in
} elseif ( 'login' == $route && is_user_logged_in() ) {
wp_redirect( esc_url_raw( $this->build_url( $_REQUEST, 'authorize' ) ) );
exit;
// Redirect with user is not logged in and trying to access the authorize endpoint
} elseif ( 'authorize' == $route && ! is_user_logged_in() ) {
wp_redirect( esc_url_raw( $this->build_url( $_REQUEST, 'login' ) ) );
exit;
// Authorize endpoint
} elseif ( 'authorize' == $route && current_user_can( 'manage_woocommerce' ) ) {
wc_get_template( 'auth/form-grant-access.php', array(
'app_name' => $_REQUEST['app_name'],
'return_url' => add_query_arg( array( 'success' => 0, 'user_id' => wc_clean( $_REQUEST['user_id'] ) ), $this->get_formatted_url( $_REQUEST['return_url'] ) ),
'scope' => $this->get_i18n_scope( wc_clean( $_REQUEST['scope'] ) ),
'permissions' => $this->get_permissions_in_scope( wc_clean( $_REQUEST['scope'] ) ),
'granted_url' => wp_nonce_url( $this->build_url( $_REQUEST, 'access_granted' ), 'wc_auth_grant_access', 'wc_auth_nonce' ),
'logout_url' => wp_logout_url( $this->build_url( $_REQUEST, 'login' ) ),
'user' => wp_get_current_user(),
) );
exit;
// Granted access endpoint
} elseif ( 'access_granted' == $route && current_user_can( 'manage_woocommerce' ) ) {
if ( ! isset( $_GET['wc_auth_nonce'] ) || ! wp_verify_nonce( $_GET['wc_auth_nonce'], 'wc_auth_grant_access' ) ) {
throw new Exception( __( 'Invalid nonce verification', 'woocommerce' ) );
}
$consumer_data = $this->create_keys( $_REQUEST['app_name'], $_REQUEST['user_id'], $_REQUEST['scope'] );
$response = $this->post_consumer_data( $consumer_data, $this->get_formatted_url( $_REQUEST['callback_url'] ) );
if ( $response ) {
wp_redirect( esc_url_raw( add_query_arg( array( 'success' => 1, 'user_id' => wc_clean( $_REQUEST['user_id'] ) ), $this->get_formatted_url( $_REQUEST['return_url'] ) ) ) );
exit;
}
} else {
throw new Exception( __( 'You do not have permission to access this page', 'woocommerce' ) );
}
} catch ( Exception $e ) {
$this->maybe_delete_key( $consumer_data );
/* translators: %s: error message */
wp_die( sprintf( __( 'Error: %s.', 'woocommerce' ), $e->getMessage() ), __( 'Access denied', 'woocommerce' ), array( 'response' => 401 ) );
}
}
/**
* Maybe delete key.
*
* @since 2.4.0
*
* @param array $key
*/
private function maybe_delete_key( $key ) {
global $wpdb;
if ( isset( $key['key_id'] ) ) {
$wpdb->delete( $wpdb->prefix . 'woocommerce_api_keys', array( 'key_id' => $key['key_id'] ), array( '%d' ) );
}
}
}
new WC_Auth();