Jetpack_XMLRPC_Server::bootstrap_xmlrpc_methods() - Code Metrics - Inspection of "strict check" - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

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created 2019-11-06 12:20 UTC
Jetpack_XMLRPC_Server::bootstrap_xmlrpc_methods() A

↳ Parent: Jetpack_XMLRPC_Server
Complexity

Conditions	1
Paths	1
Size

Total Lines
Duplication

Lines	0
Ratio	0 %
Importance

Changes
Metric	Value
cc	1
nc	1
nop	0
dl	0
loc	6
rs	10
c	0
b	0
f	0
<?php
/**
 * Jetpack XMLRPC Server.
 *
 * @package automattic/jetpack-connection
 */

use Automattic\Jetpack\Connection\Client;
use Automattic\Jetpack\Connection\Manager as Connection_Manager;
use Automattic\Jetpack\Roles;
use Automattic\Jetpack\Sync\Modules;
use Automattic\Jetpack\Sync\Functions;
use Automattic\Jetpack\Sync\Sender;
use Automattic\Jetpack\Tracking;

/**
 * Just a sack of functions.  Not actually an IXR_Server
 */
class Jetpack_XMLRPC_Server {
	/**
	 * The current error object
	 *
	 * @var \WP_Error
	 */
	public $error = null;

	/**
	 * The current user
	 *
	 * @var \WP_User
	 */
	public $user = null;

	/**
	 * The tracking manager object.
	 *
	 * @var Automattic\Jetpack\Tracking
	 */
	private $tracking;

	/**
	 * The connection manager object.
	 *
	 * @var Automattic\Jetpack\Connection\Manager
	 */
	private $connection;

	/**
	 * Creates a new XMLRPC server object.
	 *
	 * @param Automattic\Jetpack\Connection\Manager $manager the connection manager object.

	 */
	public function __construct( $manager = null ) {
		$this->connection = is_null( $manager ) ? new Connection_Manager() : $manager;
		$this->tracking   = new Tracking( 'jetpack', $manager );

	}

	/**
	 * Whitelist of the XML-RPC methods available to the Jetpack Server. If the
	 * user is not authenticated (->login()) then the methods are never added,
	 * so they will get a "does not exist" error.
	 *
	 * @param array $core_methods Core XMLRPC methods.
	 */
	public function xmlrpc_methods( $core_methods ) {
		$jetpack_methods = array(
			'jetpack.jsonAPI'         => array( $this, 'json_api' ),
			'jetpack.verifyAction'    => array( $this, 'verify_action' ),
			'jetpack.getUser'         => array( $this, 'get_user' ),
			'jetpack.remoteRegister'  => array( $this, 'remote_register' ),
			'jetpack.remoteProvision' => array( $this, 'remote_provision' ),
		);

		$this->user = $this->login();
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}

		if ( $this->user ) {
			$jetpack_methods = array_merge(
				$jetpack_methods,
				array(
					'jetpack.testConnection'    => array( $this, 'test_connection' ),
					'jetpack.testAPIUserCode'   => array( $this, 'test_api_user_code' ),
					'jetpack.featuresAvailable' => array( $this, 'features_available' ),
					'jetpack.featuresEnabled'   => array( $this, 'features_enabled' ),
					'jetpack.disconnectBlog'    => array( $this, 'disconnect_blog' ),
					'jetpack.unlinkUser'        => array( $this, 'unlink_user' ),
					'jetpack.idcUrlValidation'  => array( $this, 'validate_urls_for_idc_mitigation' ),
				)
			);

			if ( isset( $core_methods['metaWeblog.editPost'] ) ) {
				$jetpack_methods['metaWeblog.newMediaObject']      = $core_methods['metaWeblog.newMediaObject'];
				$jetpack_methods['jetpack.updateAttachmentParent'] = array( $this, 'update_attachment_parent' );
			}

			/**
			 * Filters the XML-RPC methods available to Jetpack for authenticated users.
			 *
			 * @since 1.1.0
			 *
			 * @param array    $jetpack_methods XML-RPC methods available to the Jetpack Server.
			 * @param array    $core_methods    Available core XML-RPC methods.
			 * @param \WP_User $user            Information about a given WordPress user.
			 */
			$jetpack_methods = apply_filters( 'jetpack_xmlrpc_methods', $jetpack_methods, $core_methods, $this->user );
		}

		/**
		 * Filters the XML-RPC methods available to Jetpack for unauthenticated users.
		 *
		 * @since 3.0.0
		 *
		 * @param array $jetpack_methods XML-RPC methods available to the Jetpack Server.
		 * @param array $core_methods    Available core XML-RPC methods.
		 */
		return apply_filters( 'jetpack_xmlrpc_unauthenticated_methods', $jetpack_methods, $core_methods );
	}

	/**
	 * Whitelist of the bootstrap XML-RPC methods
	 */
	public function bootstrap_xmlrpc_methods() {
		return array(
			'jetpack.remoteAuthorize' => array( $this, 'remote_authorize' ),
			'jetpack.remoteRegister'  => array( $this, 'remote_register' ),
		);
	}

	/**
	 * Additional method needed for authorization calls.
	 */
	public function authorize_xmlrpc_methods() {
		return array(
			'jetpack.remoteAuthorize' => array( $this, 'remote_authorize' ),
		);
	}

	/**
	 * Remote provisioning methods.
	 */
	public function provision_xmlrpc_methods() {
		return array(
			'jetpack.remoteRegister'  => array( $this, 'remote_register' ),
			'jetpack.remoteProvision' => array( $this, 'remote_provision' ),
			'jetpack.remoteConnect'   => array( $this, 'remote_connect' ),
			'jetpack.getUser'         => array( $this, 'get_user' ),
		);
	}

	/**
	 * Used to verify whether a local user exists and what role they have.
	 *
	 * @param int|string|array $request One of:
	 *                         int|string The local User's ID, username, or email address.
	 *                         array      A request array containing:
	 *                                    0: int|string The local User's ID, username, or email address.
	 *
	 * @return array|\IXR_Error Information about the user, or error if no such user found:
	 *                          roles:     string[] The user's rols.
	 *                          login:     string   The user's username.
	 *                          email_hash string[] The MD5 hash of the user's normalized email address.
	 *                          caps       string[] The user's capabilities.
	 *                          allcaps    string[] The user's granular capabilities, merged from role capabilities.
	 *                          token_key  string   The Token Key of the user's Jetpack token. Empty string if none.
	 */
	public function get_user( $request ) {
		$user_id = is_array( $request ) ? $request[0] : $request;

		if ( ! $user_id ) {
			return $this->error(
				new Jetpack_Error(
					'invalid_user',

					__( 'Invalid user identifier.', 'jetpack' ),
					400
				),
				'jpc_get_user_fail'
			);
		}

		$user = $this->get_user_by_anything( $user_id );

		if ( ! $user ) {
			return $this->error(
				new Jetpack_Error(
					'user_unknown',

					__( 'User not found.', 'jetpack' ),
					404
				),
				'jpc_get_user_fail'
			);
		}

		$user_token = $this->connection->get_access_token( $user->ID );

		if ( $user_token ) {
			list( $user_token_key ) = explode( '.', $user_token->secret );
			if ( $user_token_key === $user_token->secret ) {
				$user_token_key = '';
			}
		} else {
			$user_token_key = '';
		}

		return array(
			'id'         => $user->ID,
			'login'      => $user->user_login,
			'email_hash' => md5( strtolower( trim( $user->user_email ) ) ),
			'roles'      => $user->roles,
			'caps'       => $user->caps,
			'allcaps'    => $user->allcaps,
			'token_key'  => $user_token_key,
		);
	}

	/**
	 * Remote authorization XMLRPC method handler.
	 *
	 * @param array $request the request.
	 */
	public function remote_authorize( $request ) {
		$user = get_user_by( 'id', $request['state'] );
		$this->tracking->record_user_event( 'jpc_remote_authorize_begin', array(), $user );

		foreach ( array( 'secret', 'state', 'redirect_uri', 'code' ) as $required ) {
			if ( ! isset( $request[ $required ] ) || empty( $request[ $required ] ) ) {
				return $this->error( new Jetpack_Error( 'missing_parameter', 'One or more parameters is missing from the request.', 400 ), 'jpc_remote_authorize_fail' );

			}
		}

		if ( ! $user ) {
			return $this->error( new Jetpack_Error( 'user_unknown', 'User not found.', 404 ), 'jpc_remote_authorize_fail' );

		}

		if ( $this->connection->is_active() && $this->connection->is_user_connected( $request['state'] ) ) {
			return $this->error( new Jetpack_Error( 'already_connected', 'User already connected.', 400 ), 'jpc_remote_authorize_fail' );

		}

		$verified = $this->verify_action( array( 'authorize', $request['secret'], $request['state'] ) );

		if ( is_a( $verified, 'IXR_Error' ) ) {
			return $this->error( $verified, 'jpc_remote_authorize_fail' );
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
		}

		wp_set_current_user( $request['state'] );

		$client_server = new Jetpack_Client_Server();
		$result        = $client_server->authorize( $request );

		if ( is_wp_error( $result ) ) {
			return $this->error( $result, 'jpc_remote_authorize_fail' );
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
		}

		$this->tracking->record_user_event( 'jpc_remote_authorize_success' );

		return array(
			'result' => $result,
		);
	}

	/**
	 * This XML-RPC method is called from the /jpphp/provision endpoint on WPCOM in order to
	 * register this site so that a plan can be provisioned.
	 *
	 * @param array $request An array containing at minimum nonce and local_user keys.
	 *
	 * @return \WP_Error|array
	 */
	public function remote_register( $request ) {
		$this->tracking->record_user_event( 'jpc_remote_register_begin', array() );

		$user = $this->fetch_and_verify_local_user( $request );

		if ( ! $user ) {
			return $this->error( new WP_Error( 'input_error', __( 'Valid user is required', 'jetpack' ), 400 ), 'jpc_remote_register_fail' );

		}

		if ( is_wp_error( $user ) || is_a( $user, 'IXR_Error' ) ) {
			return $this->error( $user, 'jpc_remote_register_fail' );
		}

		if ( empty( $request['nonce'] ) ) {
			return $this->error(
				new Jetpack_Error(
					'nonce_missing',

					__( 'The required "nonce" parameter is missing.', 'jetpack' ),
					400
				),
				'jpc_remote_register_fail'
			);
		}

		$nonce = sanitize_text_field( $request['nonce'] );
		unset( $request['nonce'] );

		$api_url  = Jetpack::fix_url_for_bad_hosts(
			$this->connection->api_url( 'partner_provision_nonce_check' )
		);
		$response = Client::_wp_remote_request(
			esc_url_raw( add_query_arg( 'nonce', $nonce, $api_url ) ),
			array( 'method' => 'GET' ),
			true
		);

		if (
			200 !== wp_remote_retrieve_response_code( $response ) ||
			'OK' !== trim( wp_remote_retrieve_body( $response ) )
		) {
			return $this->error(
				new Jetpack_Error(
					'invalid_nonce',

					__( 'There was an issue validating this request.', 'jetpack' ),
					400
				),
				'jpc_remote_register_fail'
			);
		}

		if ( ! Jetpack_Options::get_option( 'id' ) || ! $this->connection->get_access_token() || ! empty( $request['force'] ) ) {
			wp_set_current_user( $user->ID );

			// This code mostly copied from Jetpack::admin_page_load.
			Jetpack::maybe_set_version_option();
			$registered = Jetpack::try_registration();
			if ( is_wp_error( $registered ) ) {
				return $this->error( $registered, 'jpc_remote_register_fail' );
			} elseif ( ! $registered ) {
				return $this->error(
					new Jetpack_Error(
						'registration_error',

						__( 'There was an unspecified error registering the site', 'jetpack' ),
						400
					),
					'jpc_remote_register_fail'
				);
			}
		}

		$this->tracking->record_user_event( 'jpc_remote_register_success' );

		return array(
			'client_id' => Jetpack_Options::get_option( 'id' ),
		);
	}

	/**
	 * This XML-RPC method is called from the /jpphp/provision endpoint on WPCOM in order to
	 * register this site so that a plan can be provisioned.
	 *
	 * @param array $request An array containing at minimum a nonce key and a local_username key.
	 *
	 * @return \WP_Error|array
	 */
	public function remote_provision( $request ) {
		$user = $this->fetch_and_verify_local_user( $request );

		if ( ! $user ) {
			return $this->error( new WP_Error( 'input_error', __( 'Valid user is required', 'jetpack' ), 400 ), 'jpc_remote_provision_fail' );

		}

		if ( is_wp_error( $user ) || is_a( $user, 'IXR_Error' ) ) {
			return $this->error( $user, 'jpc_remote_provision_fail' );
		}

		$site_icon = get_site_icon_url();

		$auto_enable_sso = ( ! $this->connection->is_active() || Jetpack::is_module_active( 'sso' ) );

		/** This filter is documented in class.jetpack-cli.php */
		if ( apply_filters( 'jetpack_start_enable_sso', $auto_enable_sso ) ) {
			$redirect_uri = add_query_arg(
				array(
					'action'      => 'jetpack-sso',
					'redirect_to' => rawurlencode( admin_url() ),
				),
				wp_login_url() // TODO: come back to Jetpack dashboard?
			);
		} else {
			$redirect_uri = admin_url();
		}

		// Generate secrets.
		$roles   = new Roles();
		$role    = $roles->translate_user_to_role( $user );
		$secrets = $this->connection->generate_secrets( 'authorize', $user->ID );

		$response = array(
			'jp_version'   => JETPACK__VERSION,
			'redirect_uri' => $redirect_uri,
			'user_id'      => $user->ID,
			'user_email'   => $user->user_email,
			'user_login'   => $user->user_login,
			'scope'        => $this->connection->sign_role( $role, $user->ID ),
			'secret'       => $secrets['secret_1'],
			'is_active'    => $this->connection->is_active(),
		);

		if ( $site_icon ) {
			$response['site_icon'] = $site_icon;
		}

		if ( ! empty( $request['onboarding'] ) ) {
			Jetpack::create_onboarding_token();
			$response['onboarding_token'] = Jetpack_Options::get_option( 'onboarding' );
		}

		return $response;
	}

	/**
	 * Given an array containing a local user identifier and a nonce, will attempt to fetch and set
	 * an access token for the given user.
	 *
	 * @param array       $request    An array containing local_user and nonce keys at minimum.
	 * @param \IXR_Client $ixr_client The client object, optional.

	 * @return mixed
	 */
	public function remote_connect( $request, $ixr_client = false ) {
		if ( $this->connection->is_active() ) {
			return $this->error(
				new WP_Error(
					'already_connected',

					__( 'Jetpack is already connected.', 'jetpack' ),
					400
				),
				'jpc_remote_connect_fail'
			);
		}

		$user = $this->fetch_and_verify_local_user( $request );

		if ( ! $user || is_wp_error( $user ) || is_a( $user, 'IXR_Error' ) ) {
			return $this->error(
				new WP_Error(
					'input_error',

					__( 'Valid user is required.', 'jetpack' ),
					400
				),
				'jpc_remote_connect_fail'
			);
		}

		if ( empty( $request['nonce'] ) ) {
			return $this->error(
				new WP_Error(
					'input_error',

					__( 'A non-empty nonce must be supplied.', 'jetpack' ),
					400
				),
				'jpc_remote_connect_fail'
			);
		}

		if ( ! $ixr_client ) {
			$ixr_client = new Jetpack_IXR_Client();
		}
		$ixr_client->query(
			'jetpack.getUserAccessToken',
			array(
				'nonce'            => sanitize_text_field( $request['nonce'] ),
				'external_user_id' => $user->ID,
			)
		);

		$token = $ixr_client->isError() ? false : $ixr_client->getResponse();
		if ( empty( $token ) ) {
			return $this->error(
				new WP_Error(
					'token_fetch_failed',

					__( 'Failed to fetch user token from WordPress.com.', 'jetpack' ),
					400
				),
				'jpc_remote_connect_fail'
			);
		}
		$token = sanitize_text_field( $token );

		Jetpack::update_user_token( $user->ID, sprintf( '%s.%d', $token, $user->ID ), true );

		$this->do_post_authorization();

		return $this->connection->is_active();
	}

	/**
	 * Getter for the local user to act as.
	 *
	 * @param array $request the current request data.
	 */
	private function fetch_and_verify_local_user( $request ) {
		if ( empty( $request['local_user'] ) ) {
			return $this->error(
				new Jetpack_Error(
					'local_user_missing',

					__( 'The required "local_user" parameter is missing.', 'jetpack' ),
					400
				),
				'jpc_remote_provision_fail'
			);
		}

		// Local user is used to look up by login, email or ID.
		$local_user_info = $request['local_user'];

		return $this->get_user_by_anything( $local_user_info );
	}

	/**
	 * Gets the user object by its data.
	 *
	 * @param string $user_id can be any identifying user data.
	 */
	private function get_user_by_anything( $user_id ) {
		$user = get_user_by( 'login', $user_id );

		if ( ! $user ) {
			$user = get_user_by( 'email', $user_id );
		}

		if ( ! $user ) {
			$user = get_user_by( 'ID', $user_id );
		}

		return $user;
	}

	/**
	 * Track an error.
	 *
	 * @param string               $name  Event name.
	 * @param \WP_Error|\IXR_Error $error The error object.
	 * @param \WP_User             $user  The user object.

	 */
	private function tracks_record_error( $name, $error, $user = null ) {
		if ( is_wp_error( $error ) ) {
			$this->tracking->record_user_event(
				$name,
				array(
					'error_code'    => $error->get_error_code(),

					'error_message' => $error->get_error_message(),

				),
				$user
			);
		} elseif ( is_a( $error, '\\IXR_Error' ) ) {
			$this->tracking->record_user_event(
				$name,
				array(
					'error_code'    => $error->code,
					'error_message' => $error->message,
				),
				$user
			);
		}

		return $error;
	}

	/**
	 * Possible error_codes:
	 *
	 * - verify_secret_1_missing
	 * - verify_secret_1_malformed
	 * - verify_secrets_missing: verification secrets are not found in database
	 * - verify_secrets_incomplete: verification secrets are only partially found in database
	 * - verify_secrets_expired: verification secrets have expired
	 * - verify_secrets_mismatch: stored secret_1 does not match secret_1 sent by Jetpack.WordPress.com
	 * - state_missing: required parameter of state not found
	 * - state_malformed: state is not a digit
	 * - invalid_state: state in request does not match the stored state
	 *
	 * The 'authorize' and 'register' actions have additional error codes
	 *
	 * Possible values for action are `authorize`, `publicize` and `register`.
	 *
	 * state_missing: a state ( user id ) was not supplied
	 * state_malformed: state is not the correct data type
	 * invalid_state: supplied state does not match the stored state
	 *
	 * @param array $params action parameters.
	 * @return \WP_Error|string secret_2 on success, WP_Error( error_code => error_code, error_message => error description, error_data => status code ) on failure
	 */
	public function verify_action( $params ) {
		$action                    = $params[0];
		$verify_secret             = $params[1];
		$state                     = isset( $params[2] ) ? $params[2] : '';
		$user                      = get_user_by( 'id', $state );
		$tracks_failure_event_name = '';

		if ( 'authorize' === $action ) {
			$tracks_failure_event_name = 'jpc_verify_authorize_fail';
			$this->tracking->record_user_event( 'jpc_verify_authorize_begin', array(), $user );
		}
		if ( 'publicize' === $action ) {
			// This action is used on a response from a direct XML-RPC done from WordPress.com.
			$tracks_failure_event_name = 'jpc_verify_publicize_fail';
			$this->tracking->record_user_event( 'jpc_verify_publicize_begin', array(), $user );
		}
		if ( 'register' === $action ) {
			$tracks_failure_event_name = 'jpc_verify_register_fail';
			$this->tracking->record_user_event( 'jpc_verify_register_begin', array(), $user );
		}

		if ( empty( $verify_secret ) ) {
			return $this->error( new Jetpack_Error( 'verify_secret_1_missing', sprintf( 'The required "%s" parameter is missing.', 'secret_1' ), 400 ), $tracks_failure_event_name, $user );

		} elseif ( ! is_string( $verify_secret ) ) {
			return $this->error( new Jetpack_Error( 'verify_secret_1_malformed', sprintf( 'The required "%s" parameter is malformed.', 'secret_1' ), 400 ), $tracks_failure_event_name, $user );

		} elseif ( empty( $state ) ) {
			return $this->error( new Jetpack_Error( 'state_missing', sprintf( 'The required "%s" parameter is missing.', 'state' ), 400 ), $tracks_failure_event_name, $user );

		} elseif ( ! ctype_digit( $state ) ) {
			return $this->error( new Jetpack_Error( 'state_malformed', sprintf( 'The required "%s" parameter is malformed.', 'state' ), 400 ), $tracks_failure_event_name, $user );

		}

		$secrets = Jetpack::get_secrets( $action, $state );

		if ( ! $secrets ) {
			Jetpack::delete_secrets( $action, $state );

			return $this->error( new Jetpack_Error( 'verify_secrets_missing', 'Verification secrets not found', 400 ), $tracks_failure_event_name, $user );

		}

		if ( is_wp_error( $secrets ) ) {
			Jetpack::delete_secrets( $action, $state );

			return $this->error( new Jetpack_Error( $secrets->get_error_code(), $secrets->get_error_message(), 400 ), $tracks_failure_event_name, $user );

		}

		if ( empty( $secrets['secret_1'] ) || empty( $secrets['secret_2'] ) || empty( $secrets['exp'] ) ) {
			Jetpack::delete_secrets( $action, $state );

			return $this->error( new Jetpack_Error( 'verify_secrets_incomplete', 'Verification secrets are incomplete', 400 ), $tracks_failure_event_name, $user );

		}

		if ( ! hash_equals( $verify_secret, $secrets['secret_1'] ) ) {
			Jetpack::delete_secrets( $action, $state );

			return $this->error( new Jetpack_Error( 'verify_secrets_mismatch', 'Secret mismatch', 400 ), $tracks_failure_event_name, $user );

		}

		Jetpack::delete_secrets( $action, $state );


		if ( 'authorize' === $action ) {
			$this->tracking->record_user_event( 'jpc_verify_authorize_success', array(), $user );
		}
		if ( 'publicize' === $action ) {
			$this->tracking->record_user_event( 'jpc_verify_publicize_success', array(), $user );
		}
		if ( 'register' === $action ) {
			$this->tracking->record_user_event( 'jpc_verify_register_success', array(), $user );
		}

		return $secrets['secret_2'];
	}

	/**
	 * Wrapper for wp_authenticate( $username, $password );
	 *
	 * @return \WP_User|bool
	 */
	public function login() {
		$this->connection->require_jetpack_authentication();
		$user = wp_authenticate( 'username', 'password' );
		if ( is_wp_error( $user ) ) {
			if ( 'authentication_failed' === $user->get_error_code() ) { // Generic error could mean most anything.
				$this->error = new Jetpack_Error( 'invalid_request', 'Invalid Request', 403 );

			} else {
				$this->error = $user;
			}
			return false;
		} elseif ( ! $user ) { // Shouldn't happen.
			$this->error = new Jetpack_Error( 'invalid_request', 'Invalid Request', 403 );

			return false;
		}

		return $user;
	}

	/**
	 * Returns the current error as an \IXR_Error
	 *
	 * @param \WP_Error|\IXR_Error $error             The error object, optional.

	 * @param string               $tracks_event_name The event name.

	 * @param \WP_User             $user              The user object.

	 * @return bool|\IXR_Error
	 */
	public function error( $error = null, $tracks_event_name = null, $user = null ) {
		// Record using Tracks.
		if ( null !== $tracks_event_name ) {
			$this->tracks_record_error( $tracks_event_name, $error, $user );

		}

		if ( ! is_null( $error ) ) {
			$this->error = $error;
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
		}

		if ( is_wp_error( $this->error ) ) {
			$code = $this->error->get_error_data();

			if ( ! $code ) {
				$code = -10520;
			}
			$message = sprintf( 'Jetpack: [%s] %s', $this->error->get_error_code(), $this->error->get_error_message() );

			return new \IXR_Error( $code, $message );
		} elseif ( is_a( $this->error, 'IXR_Error' ) ) {
			return $this->error;
		}

		return false;
	}

	/* API Methods */

	/**
	 * Just authenticates with the given Jetpack credentials.
	 *
	 * @return string The current Jetpack version number
	 */
	public function test_connection() {
		return JETPACK__VERSION;
	}

	/**
	 * Test the API user code.
	 *
	 * @param array $args arguments identifying the test site.
	 */
	public function test_api_user_code( $args ) {
		$client_id = (int) $args[0];
		$user_id   = (int) $args[1];
		$nonce     = (string) $args[2];
		$verify    = (string) $args[3];

		if ( ! $client_id || ! $user_id || ! strlen( $nonce ) || 32 !== strlen( $verify ) ) {
			return false;
		}

		$user = get_user_by( 'id', $user_id );
		if ( ! $user || is_wp_error( $user ) ) {
			return false;
		}

		/* phpcs:ignore
		 debugging
		error_log( "CLIENT: $client_id" );
		error_log( "USER:   $user_id" );
		error_log( "NONCE:  $nonce" );
		error_log( "VERIFY: $verify" );
		*/

		$jetpack_token = $this->connection->get_access_token( $user_id );

		$api_user_code = get_user_meta( $user_id, "jetpack_json_api_$client_id", true );
		if ( ! $api_user_code ) {
			return false;
		}

		$hmac = hash_hmac(
			'md5',
			json_encode( // phpcs:ignore WordPress.WP.AlternativeFunctions.json_encode_json_encode
				(object) array(
					'client_id' => (int) $client_id,
					'user_id'   => (int) $user_id,
					'nonce'     => (string) $nonce,
					'code'      => (string) $api_user_code,
				)
			),
			$jetpack_token->secret
		);

		if ( ! hash_equals( $hmac, $verify ) ) {
			return false;
		}

		return $user_id;
	}

	/**
	 * Disconnect this blog from the connected wordpress.com account
	 *
	 * @return boolean
	 */
	public function disconnect_blog() {

		// For tracking.
		if ( ! empty( $this->user->ID ) ) {
			wp_set_current_user( $this->user->ID );
		}

		/**
		 * Fired when we want to log an event to the Jetpack event log.
		 *
		 * @since 7.7.0
		 *
		 * @param string $code Unique name for the event.
		 * @param string $data Optional data about the event.
		 */
		do_action( 'jetpack_event_log', 'disconnect' );
		Jetpack::disconnect();

		return true;
	}

	/**
	 * Unlink a user from WordPress.com
	 *
	 * This will fail if called by the Master User.
	 */
	public function unlink_user() {
		/**
		 * Fired when we want to log an event to the Jetpack event log.
		 *
		 * @since 7.7.0
		 *
		 * @param string $code Unique name for the event.
		 * @param string $data Optional data about the event.
		 */
		do_action( 'jetpack_event_log', 'unlink' );
		return Connection_Manager::disconnect_user();
	}

	/**
	 * Returns any object that is able to be synced.
	 *
	 * @deprecated since 7.8.0
	 * @see Automattic\Jetpack\Sync\Sender::sync_object()
	 *
	 * @param array $args the synchronized object parameters.
	 * @return string Encoded sync object.
	 */
	public function sync_object( $args ) {
		_deprecated_function( __METHOD__, 'jetpack-7.8', 'Automattic\\Jetpack\\Sync\\Sender::sync_object' );
		return Sender::get_instance()->sync_object( $args );
	}

	/**
	 * Returns the home URL and site URL for the current site which can be used on the WPCOM side for
	 * IDC mitigation to decide whether sync should be allowed if the home and siteurl values differ between WPCOM
	 * and the remote Jetpack site.
	 *
	 * @return array
	 */
	public function validate_urls_for_idc_mitigation() {
		return array(
			'home'    => Functions::home_url(),
			'siteurl' => Functions::site_url(),
		);
	}

	/**
	 * Returns what features are available. Uses the slug of the module files.
	 *
	 * @return array
	 */
	public function features_available() {
		$raw_modules = Jetpack::get_available_modules();
		$modules     = array();
		foreach ( $raw_modules as $module ) {
			$modules[] = Jetpack::get_module_slug( $module );
		}

		return $modules;
	}

	/**
	 * Returns what features are enabled. Uses the slug of the modules files.
	 *
	 * @return array
	 */
	public function features_enabled() {
		$raw_modules = Jetpack::get_active_modules();
		$modules     = array();
		foreach ( $raw_modules as $module ) {
			$modules[] = Jetpack::get_module_slug( $module );
		}

		return $modules;
	}

	/**
	 * Updates the attachment parent object.
	 *
	 * @param array $args attachment and parent identifiers.
	 */
	public function update_attachment_parent( $args ) {
		$attachment_id = (int) $args[0];
		$parent_id     = (int) $args[1];

		return wp_update_post(
			array(
				'ID'          => $attachment_id,
				'post_parent' => $parent_id,
			)
		);
	}

	/**
	 * Serve a JSON API request.
	 *
	 * @param array $args request arguments.
	 */
	public function json_api( $args = array() ) {
		$json_api_args        = $args[0];
		$verify_api_user_args = $args[1];

		$method       = (string) $json_api_args[0];
		$url          = (string) $json_api_args[1];
		$post_body    = is_null( $json_api_args[2] ) ? null : (string) $json_api_args[2];
		$user_details = (array) $json_api_args[4];
		$locale       = (string) $json_api_args[5];

		if ( ! $verify_api_user_args ) {
			$user_id = 0;
		} elseif ( 'internal' === $verify_api_user_args[0] ) {
			$user_id = (int) $verify_api_user_args[1];
			if ( $user_id ) {
				$user = get_user_by( 'id', $user_id );
				if ( ! $user || is_wp_error( $user ) ) {
					return false;
				}
			}
		} else {
			$user_id = call_user_func( array( $this, 'test_api_user_code' ), $verify_api_user_args );
			if ( ! $user_id ) {
				return false;
			}
		}

		/* phpcs:ignore
		 debugging
		error_log( "-- begin json api via jetpack debugging -- " );
		error_log( "METHOD: $method" );
		error_log( "URL: $url" );
		error_log( "POST BODY: $post_body" );
		error_log( "VERIFY_ARGS: " . print_r( $verify_api_user_args, 1 ) );
		error_log( "VERIFIED USER_ID: " . (int) $user_id );
		error_log( "-- end json api via jetpack debugging -- " );
		*/

		if ( 'en' !== $locale ) {
			// .org mo files are named slightly different from .com, and all we have is this the locale -- try to guess them.
			$new_locale = $locale;
			if ( strpos( $locale, '-' ) !== false ) {
				$locale_pieces = explode( '-', $locale );
				$new_locale    = $locale_pieces[0];
				$new_locale   .= ( ! empty( $locale_pieces[1] ) ) ? '_' . strtoupper( $locale_pieces[1] ) : '';
			} else {
				// .com might pass 'fr' because thats what our language files are named as, where core seems
				// to do fr_FR - so try that if we don't think we can load the file.
				if ( ! file_exists( WP_LANG_DIR . '/' . $locale . '.mo' ) ) {
					$new_locale = $locale . '_' . strtoupper( $locale );
				}
			}

			if ( file_exists( WP_LANG_DIR . '/' . $new_locale . '.mo' ) ) {
				unload_textdomain( 'default' );
				load_textdomain( 'default', WP_LANG_DIR . '/' . $new_locale . '.mo' );
			}
		}

		$old_user = wp_get_current_user();
		wp_set_current_user( $user_id );

		if ( $user_id ) {
			$token_key = false;
		} else {
			$verified  = $this->connection->verify_xml_rpc_signature();
			$token_key = $verified['token_key'];
		}

		$token = $this->connection->get_access_token( $user_id, $token_key );
		if ( ! $token || is_wp_error( $token ) ) {
			return false;
		}

		define( 'REST_API_REQUEST', true );
		define( 'WPCOM_JSON_API__BASE', 'public-api.wordpress.com/rest/v1' );

		// needed?
		require_once ABSPATH . 'wp-admin/includes/admin.php';

		require_once JETPACK__PLUGIN_DIR . 'class.json-api.php';
		$api                        = WPCOM_JSON_API::init( $method, $url, $post_body );
		$api->token_details['user'] = $user_details;
		require_once JETPACK__PLUGIN_DIR . 'class.json-api-endpoints.php';

		$display_errors = ini_set( 'display_errors', 0 ); // phpcs:ignore WordPress.PHP.IniSet
		ob_start();
		$api->serve( false );
		$output = ob_get_clean();
		ini_set( 'display_errors', $display_errors ); // phpcs:ignore WordPress.PHP.IniSet

		$nonce = wp_generate_password( 10, false );
		$hmac  = hash_hmac( 'md5', $nonce . $output, $token->secret );

		wp_set_current_user( isset( $old_user->ID ) ? $old_user->ID : 0 );

		return array(
			(string) $output,
			(string) $nonce,
			(string) $hmac,
		);
	}

	/**
	 * Handles authorization actions after connecting a site, such as enabling modules.
	 *
	 * This do_post_authorization() is used in this class, as opposed to calling
	 * Jetpack::handle_post_authorization_actions() directly so that we can mock this method as necessary.
	 *
	 * @return void
	 */
	public function do_post_authorization() {
		/** This filter is documented in class.jetpack-cli.php */
		$enable_sso = apply_filters( 'jetpack_start_enable_sso', true );
		Jetpack::handle_post_authorization_actions( $enable_sso, false, false );
	}
}

Automattic / jetpack

Push — fix/check-queue-status-before-... ( fa5495...b1b857 )

Jetpack_XMLRPC_Server::bootstrap_xmlrpc_methods() A

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