get_access_token( (int) $env_user_id, $env_token );
if ( ! $token || empty( $token->secret ) ) {
wp_die( esc_html__( 'You must connect your Jetpack plugin to WordPress.com to use this feature.', 'jetpack-connection' ) );
}
$die_error = __( 'Someone may be trying to trick you into giving them access to your site. Or it could be you just encountered a bug :). Either way, please close this window.', 'jetpack-connection' );
// Host has encoded the request URL, probably as a result of a bad http => https redirect.
if (
preg_match( '/https?%3A%2F%2F/i', esc_url_raw( wp_unslash( $_GET['redirect_to'] ) ) ) > 0 // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotValidated -- no site changes, we're erroring out.
) {
/**
* Jetpack authorisation request Error.
*
* @since jetpack-7.5.0
*/
do_action( 'jetpack_verify_api_authorization_request_error_double_encode' );
$die_error = sprintf(
/* translators: %s is a URL */
__( 'Your site is incorrectly double-encoding redirects from http to https. This is preventing Jetpack from authenticating your connection. Please visit our support page for details about how to resolve this.', 'jetpack-connection' ),
esc_url( Redirect::get_url( 'jetpack-support-double-encoding' ) )
);
}
$jetpack_signature = new \Jetpack_Signature( $token->secret, (int) Jetpack_Options::get_option( 'time_diff' ) );
if ( isset( $environment['jetpack_json_api_original_query'] ) ) {
$signature = $jetpack_signature->sign_request(
$environment['token'],
$environment['timestamp'],
$environment['nonce'],
'',
'GET',
$environment['jetpack_json_api_original_query'],
null,
true
);
} else {
$signature = $jetpack_signature->sign_current_request(
array(
'body' => null,
'method' => 'GET',
)
);
}
if ( ! $signature ) {
wp_die(
wp_kses(
$die_error,
array(
'a' => array(
'href' => array(),
),
)
)
);
} elseif ( is_wp_error( $signature ) ) {
wp_die(
wp_kses(
$die_error,
array(
'a' => array(
'href' => array(),
),
)
)
);
} elseif ( ! hash_equals( $signature, $environment['signature'] ) ) {
if ( is_ssl() ) {
// If we signed an HTTP request on the Jetpack Servers, but got redirected to HTTPS by the local blog, check the HTTP signature as well.
$signature = $jetpack_signature->sign_current_request(
array(
'scheme' => 'http',
'body' => null,
'method' => 'GET',
)
);
if ( ! $signature || is_wp_error( $signature ) || ! hash_equals( $signature, $environment['signature'] ) ) {
wp_die(
wp_kses(
$die_error,
array(
'a' => array(
'href' => array(),
),
)
)
);
}
} else {
wp_die(
wp_kses(
$die_error,
array(
'a' => array(
'href' => array(),
),
)
)
);
}
}
$timestamp = (int) $environment['timestamp'];
$nonce = stripslashes( (string) $environment['nonce'] );
if ( ! ( new Nonce_Handler() )->add( $timestamp, $nonce ) ) {
// De-nonce the nonce, at least for 5 minutes.
// We have to reuse this nonce at least once (used the first time when the initial request is made, used a second time when the login form is POSTed).
$old_nonce_time = get_option( "jetpack_nonce_{$timestamp}_{$nonce}" );
if ( $old_nonce_time < time() - 300 ) {
wp_die( esc_html__( 'The authorization process expired. Please go back and try again.', 'jetpack-connection' ) );
}
}
$data = json_decode(
base64_decode( stripslashes( $environment['data'] ) ) // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode
);
$data_filters = array(
'state' => 'opaque',
'client_id' => 'int',
'client_title' => 'string',
'client_image' => 'url',
);
foreach ( $data_filters as $key => $sanitation ) {
if ( ! isset( $data->$key ) ) {
wp_die(
wp_kses(
$die_error,
array(
'a' => array(
'href' => array(),
),
)
)
);
}
switch ( $sanitation ) {
case 'int':
$this->json_api_authorization_request[ $key ] = (int) $data->$key;
break;
case 'opaque':
$this->json_api_authorization_request[ $key ] = (string) $data->$key;
break;
case 'string':
$this->json_api_authorization_request[ $key ] = wp_kses( (string) $data->$key, array() );
break;
case 'url':
$this->json_api_authorization_request[ $key ] = esc_url_raw( (string) $data->$key );
break;
}
}
if ( empty( $this->json_api_authorization_request['client_id'] ) ) {
wp_die(
wp_kses(
$die_error,
array(
'a' => array(
'href' => array(),
),
)
)
);
}
}
/**
* Add the Access Code details to the public-api.wordpress.com redirect.
*
* @since 2.7.6 Ported from Jetpack to the Connection package.
*
* @param string $redirect_to URL.
* @param string $original_redirect_to URL.
* @param \WP_User $user WP_User for the redirect.
*
* @return string
*/
public function add_token_to_login_redirect_json_api_authorization( $redirect_to, $original_redirect_to, $user ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
return add_query_arg(
urlencode_deep(
array(
'jetpack-code' => get_user_meta(
$user->ID,
'jetpack_json_api_' . $this->json_api_authorization_request['client_id'],
true
),
'jetpack-user-id' => (int) $user->ID,
'jetpack-state' => $this->json_api_authorization_request['state'],
)
),
$redirect_to
);
}
/**
* If someone logs in to approve API access, store the Access Code in usermeta.
*
* @since 2.7.6 Ported from Jetpack to the Connection package.
*
* @param string $user_login Unused.
* @param \WP_User $user User logged in.
*
* @return void
*/
public function store_json_api_authorization_token( $user_login, $user ) {
add_filter( 'login_redirect', array( $this, 'add_token_to_login_redirect_json_api_authorization' ), 10, 3 );
add_filter( 'allowed_redirect_hosts', array( Host::class, 'allow_wpcom_public_api_domain' ) );
$token = wp_generate_password( 32, false );
update_user_meta( $user->ID, 'jetpack_json_api_' . $this->json_api_authorization_request['client_id'], $token );
}
/**
* HTML for the JSON API authorization notice.
*
* @since 2.7.6 Ported from Jetpack to the Connection package.
*
* @return string
*/
public function login_message_json_api_authorization() {
return '' . sprintf(
/* translators: Name/image of the client requesting authorization */
esc_html__( '%s wants to access your site’s data. Log in to authorize that access.', 'jetpack-connection' ),
'' . esc_html( $this->json_api_authorization_request['client_title'] ) . ''
) . ' . ')
';
}
}