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