Issues in class.jetpack-xmlrpc-server.php - Fixed Issues - Inspection of "New build" - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

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created 2017-04-25 03:49 UTC

class.jetpack-xmlrpc-server.php (1 issue)

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<?php

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

	/**
	 * The current user
	 */
	public $user = null;

	/**
	 * 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.
	 */
	function xmlrpc_methods( $core_methods ) {
		$jetpack_methods = array(
			'jetpack.jsonAPI'      => array( $this, 'json_api' ),
			'jetpack.verifyAction' => array( $this, 'verify_action' ),
		);

		$this->user = $this->login();

		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.syncObject'        => array( $this, 'sync_object' ),
				'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
	 */
	function bootstrap_xmlrpc_methods() {
		return array(
			'jetpack.verifyRegistration' => array( $this, 'verify_registration' ),
			'jetpack.remoteAuthorize' => array( $this, 'remote_authorize' ),
		);
	}

	function authorize_xmlrpc_methods() {
		return array(
			'jetpack.remoteAuthorize' => array( $this, 'remote_authorize' ),
			'jetpack.activateManage'    => array( $this, 'activate_manage' ),
		);
	}

	function activate_manage( $request ) {
		foreach( array( 'secret', 'state' ) 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 ) );
			}
		}
		$verified = $this->verify_action( array( 'activate_manage', $request['secret'], $request['state'] ) );
		if ( is_a( $verified, 'IXR_Error' ) ) {
			return $verified;
		}
		$activated = Jetpack::activate_module( 'manage', false, false );
		if ( false === $activated || ! Jetpack::is_module_active( 'manage' ) ) {
			return $this->error( new Jetpack_Error( 'activation_error', 'There was an error while activating the module.', 500 ) );
		}
		return 'active';
	}

	function remote_authorize( $request ) {
		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 ) );
			}
		}

		if ( ! get_user_by( 'id', $request['state'] ) ) {
			return $this->error( new Jetpack_Error( 'user_unknown', 'User not found.', 404 ) );
		}

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

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

		if ( is_a( $verified, 'IXR_Error' ) ) {
			return $verified;
		}

		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 );
		}
		// Creates a new secret, allowing someone to activate the manage module for up to 1 day after authorization.
		$secrets = Jetpack::init()->generate_secrets( 'activate_manage', DAY_IN_SECONDS );
		@list( $secret ) = explode( ':', $secrets );
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		$response = array(
			'result' => $result,
			'activate_manage' => $secret,
		);
		return $response;
	}

	/**
	* Verifies that Jetpack.WordPress.com received a registration request from this site
	*/
	function verify_registration( $data ) {
		return $this->verify_action( array( 'register', $data[0], $data[1] ) );
	}

	/**
	 * @return WP_Error|string secret_2 on success, WP_Error( error_code => error_code, error_message => error description, error_data => status code ) on failure
	 *
	 * 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
	 *
	 * 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
	 */
	function verify_action( $params ) {
		$action = $params[0];
		$verify_secret = $params[1];
		$state = isset( $params[2] ) ? $params[2] : '';

		if ( empty( $verify_secret ) ) {
			return $this->error( new Jetpack_Error( 'verify_secret_1_missing', sprintf( 'The required "%s" parameter is missing.', 'secret_1' ), 400 ) );
		} else if ( ! is_string( $verify_secret ) ) {
			return $this->error( new Jetpack_Error( 'verify_secret_1_malformed', sprintf( 'The required "%s" parameter is malformed.', 'secret_1' ), 400 ) );
		}

		$secrets = Jetpack_Options::get_option( $action );
		if ( ! $secrets || is_wp_error( $secrets ) ) {
			Jetpack_Options::delete_option( $action );
			return $this->error( new Jetpack_Error( 'verify_secrets_missing', 'Verification secrets not found', 400 ) );
		}

		@list( $secret_1, $secret_2, $secret_eol, $user_id ) = explode( ':', $secrets );

		if ( empty( $secret_1 ) || empty( $secret_2 ) || empty( $secret_eol ) ) {
			Jetpack_Options::delete_option( $action );
			return $this->error( new Jetpack_Error( 'verify_secrets_incomplete', 'Verification secrets are incomplete', 400 ) );
		}

		if ( $secret_eol < time() ) {
			Jetpack_Options::delete_option( $action );
			return $this->error( new Jetpack_Error( 'verify_secrets_expired', 'Verification took too long', 400 ) );
		}

		if ( ! hash_equals( $verify_secret, $secret_1 ) ) {
			Jetpack_Options::delete_option( $action );
			return $this->error( new Jetpack_Error( 'verify_secrets_mismatch', 'Secret mismatch', 400 ) );
		}

		if ( in_array( $action, array( 'authorize', 'register' ) ) ) {
			// 'authorize' and 'register' actions require further testing
			if ( empty( $state ) ) {
				return $this->error( new Jetpack_Error( 'state_missing', sprintf( 'The required "%s" parameter is missing.', 'state' ), 400 ) );
			} else if ( ! ctype_digit( $state ) ) {
				return $this->error( new Jetpack_Error( 'state_malformed', sprintf( 'The required "%s" parameter is malformed.', 'state' ), 400 ) );
			}
			if ( empty( $user_id ) || $user_id !== $state ) {
				Jetpack_Options::delete_option( $action );
				return $this->error( new Jetpack_Error( 'invalid_state', 'State is invalid', 400 ) );
			}
		}

		Jetpack_Options::delete_option( $action );

		return $secret_2;
	}

	/**
	 * Wrapper for wp_authenticate( $username, $password );
	 *
	 * @return WP_User|bool
	 */
	function login() {
		Jetpack::init()->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 = $user;
			}
			return false;
		} else if ( !$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
	 *
	 * @return bool|IXR_Error
	 */
	function error( $error = null ) {
		if ( !is_null( $error ) ) {
			$this->error = $error;
		}

		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 );
		} else if ( 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
	 */
	function test_connection() {
		return JETPACK__VERSION;
	}

	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;
		}

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

		$jetpack_token = Jetpack_Data::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( (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
	*/
	function disconnect_blog() {

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

		Jetpack::log( 'disconnect' );
		Jetpack::disconnect();

		return true;
	}

	/**
	 * Unlink a user from WordPress.com
	 *
	 * This will fail if called by the Master User.
	 */
	function unlink_user() {
		Jetpack::log( 'unlink' );
		return Jetpack::unlink_user();
	}

	/**
	 * Returns any object that is able to be synced
	 */
	function sync_object( $args ) {
		// e.g. posts, post, 5
		list( $module_name, $object_type, $id ) = $args;
		require_once dirname( __FILE__ ) . '/sync/class.jetpack-sync-modules.php';
		require_once dirname( __FILE__ ) . '/sync/class.jetpack-sync-sender.php';

		$sync_module = Jetpack_Sync_Modules::get_module( $module_name );
		$codec = Jetpack_Sync_Sender::get_instance()->get_codec();

		return $codec->encode( $sync_module->get_object_by_id( $object_type, $id ) );
	}

	/**
	 * 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
	 */
	function validate_urls_for_idc_mitigation() {
		return array(
			'home'    => get_home_url(),
			'siteurl' => get_site_url(),
		);
	}

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

		return $modules;
	}

	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,
		) );
	}

	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;
			}
		}

		/* 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 );

		$token = Jetpack_Data::get_access_token( get_current_user_id() );
		if ( !$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 );
		ob_start();
		$content_type = $api->serve( false );
		$output = ob_get_clean();
		ini_set( 'display_errors', $display_errors );

		$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,
		);
	}
}


1		<?php
2
3		/**
4		* Just a sack of functions. Not actually an IXR_Server
5		*/
6		class Jetpack_XMLRPC_Server {
7		/**
8		* The current error object
9		*/
10		public $error = null;
11
12		/**
13		* The current user
14		*/
15		public $user = null;
16
17		/**
18		* Whitelist of the XML-RPC methods available to the Jetpack Server. If the
19		* user is not authenticated (->login()) then the methods are never added,
20		* so they will get a "does not exist" error.
21		*/
22		function xmlrpc_methods( $core_methods ) {
23		$jetpack_methods = array(
24		'jetpack.jsonAPI' => array( $this, 'json_api' ),
25		'jetpack.verifyAction' => array( $this, 'verify_action' ),
26		);
27
28		$this->user = $this->login();
29
30		if ( $this->user ) {
31		$jetpack_methods = array_merge( $jetpack_methods, array(
32		'jetpack.testConnection' => array( $this, 'test_connection' ),
33		'jetpack.testAPIUserCode' => array( $this, 'test_api_user_code' ),
34		'jetpack.featuresAvailable' => array( $this, 'features_available' ),
35		'jetpack.featuresEnabled' => array( $this, 'features_enabled' ),
36		'jetpack.disconnectBlog' => array( $this, 'disconnect_blog' ),
37		'jetpack.unlinkUser' => array( $this, 'unlink_user' ),
38		'jetpack.syncObject' => array( $this, 'sync_object' ),
39		'jetpack.idcUrlValidation' => array( $this, 'validate_urls_for_idc_mitigation' ),
40		) );
41
42		if ( isset( $core_methods['metaWeblog.editPost'] ) ) {
43		$jetpack_methods['metaWeblog.newMediaObject'] = $core_methods['metaWeblog.newMediaObject'];
44		$jetpack_methods['jetpack.updateAttachmentParent'] = array( $this, 'update_attachment_parent' );
45		}
46
47		/**
48		* Filters the XML-RPC methods available to Jetpack for authenticated users.
49		*
50		* @since 1.1.0
51		*
52		* @param array $jetpack_methods XML-RPC methods available to the Jetpack Server.
53		* @param array $core_methods Available core XML-RPC methods.
54		* @param WP_User $user Information about a given WordPress user.
55		*/
56		$jetpack_methods = apply_filters( 'jetpack_xmlrpc_methods', $jetpack_methods, $core_methods, $this->user );
57		}
58
59		/**
60		* Filters the XML-RPC methods available to Jetpack for unauthenticated users.
61		*
62		* @since 3.0.0
63		*
64		* @param array $jetpack_methods XML-RPC methods available to the Jetpack Server.
65		* @param array $core_methods Available core XML-RPC methods.
66		*/
67		return apply_filters( 'jetpack_xmlrpc_unauthenticated_methods', $jetpack_methods, $core_methods );
68		}
69
70		/**
71		* Whitelist of the bootstrap XML-RPC methods
72		*/
73		function bootstrap_xmlrpc_methods() {
74		return array(
75		'jetpack.verifyRegistration' => array( $this, 'verify_registration' ),
76		'jetpack.remoteAuthorize' => array( $this, 'remote_authorize' ),
77		);
78		}
79
80		function authorize_xmlrpc_methods() {
81		return array(
82		'jetpack.remoteAuthorize' => array( $this, 'remote_authorize' ),
83		'jetpack.activateManage' => array( $this, 'activate_manage' ),
84		);
85		}
86
87		function activate_manage( $request ) {
88	View Code Duplication	foreach( array( 'secret', 'state' ) as $required ) {
89		if ( ! isset( $request[ $required ] ) \|\| empty( $request[ $required ] ) ) {
90		return $this->error( new Jetpack_Error( 'missing_parameter', 'One or more parameters is missing from the request.', 400 ) );
91		}
92		}
93		$verified = $this->verify_action( array( 'activate_manage', $request['secret'], $request['state'] ) );
94		if ( is_a( $verified, 'IXR_Error' ) ) {
95		return $verified;
96		}
97		$activated = Jetpack::activate_module( 'manage', false, false );
98		if ( false === $activated \|\| ! Jetpack::is_module_active( 'manage' ) ) {
99		return $this->error( new Jetpack_Error( 'activation_error', 'There was an error while activating the module.', 500 ) );
100		}
101		return 'active';
102		}
103
104		function remote_authorize( $request ) {
105	View Code Duplication	foreach( array( 'secret', 'state', 'redirect_uri', 'code' ) as $required ) {
106		if ( ! isset( $request[ $required ] ) \|\| empty( $request[ $required ] ) ) {
107		return $this->error( new Jetpack_Error( 'missing_parameter', 'One or more parameters is missing from the request.', 400 ) );
108		}
109		}
110
111		if ( ! get_user_by( 'id', $request['state'] ) ) {
112		return $this->error( new Jetpack_Error( 'user_unknown', 'User not found.', 404 ) );
113		}
114
115		if ( Jetpack::is_active() && Jetpack::is_user_connected( $request['state'] ) ) {
116		return $this->error( new Jetpack_Error( 'already_connected', 'User already connected.', 400 ) );
117		}
118
119		$verified = $this->verify_action( array( 'authorize', $request['secret'], $request['state'] ) );
120
121		if ( is_a( $verified, 'IXR_Error' ) ) {
122		return $verified;
123		}
124
125		wp_set_current_user( $request['state'] );
126
127		$client_server = new Jetpack_Client_Server;
128		$result = $client_server->authorize( $request );
129
130		if ( is_wp_error( $result ) ) {
131		return $this->error( $result );
132		}
133		// Creates a new secret, allowing someone to activate the manage module for up to 1 day after authorization.
134		$secrets = Jetpack::init()->generate_secrets( 'activate_manage', DAY_IN_SECONDS );
135		@list( $secret ) = explode( ':', $secrets );
		0 ignored issues – show Security Best Practice introduced 2015-11-20 23:03 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended. If you suppress an error, we recommend checking for the error condition explicitly: // For example instead of @mkdir($dir); // Better use if (@mkdir($dir) === false) { throw new \RuntimeException('The directory '.$dir.' could not be created.'); } Loading history...
136		$response = array(
137		'result' => $result,
138		'activate_manage' => $secret,
139		);
140		return $response;
141		}
142
143		/**
144		* Verifies that Jetpack.WordPress.com received a registration request from this site
145		*/
146		function verify_registration( $data ) {
147		return $this->verify_action( array( 'register', $data[0], $data[1] ) );
148		}
149
150		/**
151		* @return WP_Error\|string secret_2 on success, WP_Error( error_code => error_code, error_message => error description, error_data => status code ) on failure
152		*
153		* Possible error_codes:
154		*
155		* verify_secret_1_missing
156		* verify_secret_1_malformed
157		* verify_secrets_missing: verification secrets are not found in database
158		* verify_secrets_incomplete: verification secrets are only partially found in database
159		* verify_secrets_expired: verification secrets have expired
160		* verify_secrets_mismatch: stored secret_1 does not match secret_1 sent by Jetpack.WordPress.com
161		* state_missing: required parameter of state not found
162		* state_malformed: state is not a digit
163		* invalid_state: state in request does not match the stored state
164		*
165		* The 'authorize' and 'register' actions have additional error codes
166		*
167		* state_missing: a state ( user id ) was not supplied
168		* state_malformed: state is not the correct data type
169		* invalid_state: supplied state does not match the stored state
170		*/
171		function verify_action( $params ) {
172		$action = $params[0];
173		$verify_secret = $params[1];
174		$state = isset( $params[2] ) ? $params[2] : '';
175
176		if ( empty( $verify_secret ) ) {
177		return $this->error( new Jetpack_Error( 'verify_secret_1_missing', sprintf( 'The required "%s" parameter is missing.', 'secret_1' ), 400 ) );
178		} else if ( ! is_string( $verify_secret ) ) {
179		return $this->error( new Jetpack_Error( 'verify_secret_1_malformed', sprintf( 'The required "%s" parameter is malformed.', 'secret_1' ), 400 ) );
180		}
181
182		$secrets = Jetpack_Options::get_option( $action );
183		if ( ! $secrets \|\| is_wp_error( $secrets ) ) {
184		Jetpack_Options::delete_option( $action );
185		return $this->error( new Jetpack_Error( 'verify_secrets_missing', 'Verification secrets not found', 400 ) );
186		}
187
188		@list( $secret_1, $secret_2, $secret_eol, $user_id ) = explode( ':', $secrets );
189
190	View Code Duplication	if ( empty( $secret_1 ) \|\| empty( $secret_2 ) \|\| empty( $secret_eol ) ) {
191		Jetpack_Options::delete_option( $action );
192		return $this->error( new Jetpack_Error( 'verify_secrets_incomplete', 'Verification secrets are incomplete', 400 ) );
193		}
194
195		if ( $secret_eol < time() ) {
196		Jetpack_Options::delete_option( $action );
197		return $this->error( new Jetpack_Error( 'verify_secrets_expired', 'Verification took too long', 400 ) );
198		}
199
200		if ( ! hash_equals( $verify_secret, $secret_1 ) ) {
201		Jetpack_Options::delete_option( $action );
202		return $this->error( new Jetpack_Error( 'verify_secrets_mismatch', 'Secret mismatch', 400 ) );
203		}
204
205		if ( in_array( $action, array( 'authorize', 'register' ) ) ) {
206		// 'authorize' and 'register' actions require further testing
207		if ( empty( $state ) ) {
208		return $this->error( new Jetpack_Error( 'state_missing', sprintf( 'The required "%s" parameter is missing.', 'state' ), 400 ) );
209		} else if ( ! ctype_digit( $state ) ) {
210		return $this->error( new Jetpack_Error( 'state_malformed', sprintf( 'The required "%s" parameter is malformed.', 'state' ), 400 ) );
211		}
212	View Code Duplication	if ( empty( $user_id ) \|\| $user_id !== $state ) {
213		Jetpack_Options::delete_option( $action );
214		return $this->error( new Jetpack_Error( 'invalid_state', 'State is invalid', 400 ) );
215		}
216		}
217
218		Jetpack_Options::delete_option( $action );
219
220		return $secret_2;
221		}
222
223		/**
224		* Wrapper for wp_authenticate( $username, $password );
225		*
226		* @return WP_User\|bool
227		*/
228		function login() {
229		Jetpack::init()->require_jetpack_authentication();
230		$user = wp_authenticate( 'username', 'password' );
231		if ( is_wp_error( $user ) ) {
232		if ( 'authentication_failed' == $user->get_error_code() ) { // Generic error could mean most anything.
233		$this->error = new Jetpack_Error( 'invalid_request', 'Invalid Request', 403 );
234		} else {
235		$this->error = $user;
236		}
237		return false;
238		} else if ( !$user ) { // Shouldn't happen.
239		$this->error = new Jetpack_Error( 'invalid_request', 'Invalid Request', 403 );
240		return false;
241		}
242
243		return $user;
244		}
245
246		/**
247		* Returns the current error as an IXR_Error
248		*
249		* @return bool\|IXR_Error
250		*/
251		function error( $error = null ) {
252		if ( !is_null( $error ) ) {
253		$this->error = $error;
254		}
255
256		if ( is_wp_error( $this->error ) ) {
257		$code = $this->error->get_error_data();
258		if ( !$code ) {
259		$code = -10520;
260		}
261		$message = sprintf( 'Jetpack: [%s] %s', $this->error->get_error_code(), $this->error->get_error_message() );
262		return new IXR_Error( $code, $message );
263		} else if ( is_a( $this->error, 'IXR_Error' ) ) {
264		return $this->error;
265		}
266
267		return false;
268		}
269
270		/* API Methods */
271
272		/**
273		* Just authenticates with the given Jetpack credentials.
274		*
275		* @return string The current Jetpack version number
276		*/
277		function test_connection() {
278		return JETPACK__VERSION;
279		}
280
281		function test_api_user_code( $args ) {
282		$client_id = (int) $args[0];
283		$user_id = (int) $args[1];
284		$nonce = (string) $args[2];
285		$verify = (string) $args[3];
286
287		if ( !$client_id \|\| !$user_id \|\| !strlen( $nonce ) \|\| 32 !== strlen( $verify ) ) {
288		return false;
289		}
290
291		$user = get_user_by( 'id', $user_id );
292		if ( !$user \|\| is_wp_error( $user ) ) {
293		return false;
294		}
295
296		/* debugging
297		error_log( "CLIENT: $client_id" );
298		error_log( "USER: $user_id" );
299		error_log( "NONCE: $nonce" );
300		error_log( "VERIFY: $verify" );
301		*/
302
303		$jetpack_token = Jetpack_Data::get_access_token( $user_id );
304
305		$api_user_code = get_user_meta( $user_id, "jetpack_json_api_$client_id", true );
306		if ( !$api_user_code ) {
307		return false;
308		}
309
310		$hmac = hash_hmac( 'md5', json_encode( (object) array(
311		'client_id' => (int) $client_id,
312		'user_id' => (int) $user_id,
313		'nonce' => (string) $nonce,
314		'code' => (string) $api_user_code,
315		) ), $jetpack_token->secret );
316
317		if ( ! hash_equals( $hmac, $verify ) ) {
318		return false;
319		}
320
321		return $user_id;
322		}
323
324		/**
325		* Disconnect this blog from the connected wordpress.com account
326		* @return boolean
327		*/
328		function disconnect_blog() {
329
330		// For tracking
331		if ( ! empty( $this->user->ID ) ) {
332		wp_set_current_user( $this->user->ID );
333		}
334
335		Jetpack::log( 'disconnect' );
336		Jetpack::disconnect();
337
338		return true;
339		}
340
341		/**
342		* Unlink a user from WordPress.com
343		*
344		* This will fail if called by the Master User.
345		*/
346		function unlink_user() {
347		Jetpack::log( 'unlink' );
348		return Jetpack::unlink_user();
349		}
350
351		/**
352		* Returns any object that is able to be synced
353		*/
354		function sync_object( $args ) {
355		// e.g. posts, post, 5
356		list( $module_name, $object_type, $id ) = $args;
357		require_once dirname( __FILE__ ) . '/sync/class.jetpack-sync-modules.php';
358		require_once dirname( __FILE__ ) . '/sync/class.jetpack-sync-sender.php';
359
360		$sync_module = Jetpack_Sync_Modules::get_module( $module_name );
361		$codec = Jetpack_Sync_Sender::get_instance()->get_codec();
362
363		return $codec->encode( $sync_module->get_object_by_id( $object_type, $id ) );
364		}
365
366		/**
367		* Returns the home URL and site URL for the current site which can be used on the WPCOM side for
368		* IDC mitigation to decide whether sync should be allowed if the home and siteurl values differ between WPCOM
369		* and the remote Jetpack site.
370		*
371		* @return array
372		*/
373		function validate_urls_for_idc_mitigation() {
374		return array(
375		'home' => get_home_url(),
376		'siteurl' => get_site_url(),
377		);
378		}
379
380		/**
381		* Returns what features are available. Uses the slug of the module files.
382		*
383		* @return array
384		*/
385	View Code Duplication	function features_available() {
386		$raw_modules = Jetpack::get_available_modules();
387		$modules = array();
388		foreach ( $raw_modules as $module ) {
389		$modules[] = Jetpack::get_module_slug( $module );
390		}
391
392		return $modules;
393		}
394
395		/**
396		* Returns what features are enabled. Uses the slug of the modules files.
397		*
398		* @return array
399		*/
400	View Code Duplication	function features_enabled() {
401		$raw_modules = Jetpack::get_active_modules();
402		$modules = array();
403		foreach ( $raw_modules as $module ) {
404		$modules[] = Jetpack::get_module_slug( $module );
405		}
406
407		return $modules;
408		}
409
410		function update_attachment_parent( $args ) {
411		$attachment_id = (int) $args[0];
412		$parent_id = (int) $args[1];
413
414		return wp_update_post( array(
415		'ID' => $attachment_id,
416		'post_parent' => $parent_id,
417		) );
418		}
419
420		function json_api( $args = array() ) {
421		$json_api_args = $args[0];
422		$verify_api_user_args = $args[1];
423
424		$method = (string) $json_api_args[0];
425		$url = (string) $json_api_args[1];
426		$post_body = is_null( $json_api_args[2] ) ? null : (string) $json_api_args[2];
427		$user_details = (array) $json_api_args[4];
428		$locale = (string) $json_api_args[5];
429
430		if ( !$verify_api_user_args ) {
431		$user_id = 0;
432		} elseif ( 'internal' === $verify_api_user_args[0] ) {
433		$user_id = (int) $verify_api_user_args[1];
434		if ( $user_id ) {
435		$user = get_user_by( 'id', $user_id );
436		if ( !$user \|\| is_wp_error( $user ) ) {
437		return false;
438		}
439		}
440		} else {
441		$user_id = call_user_func( array( $this, 'test_api_user_code' ), $verify_api_user_args );
442		if ( !$user_id ) {
443		return false;
444		}
445		}
446
447		/* debugging
448		error_log( "-- begin json api via jetpack debugging -- " );
449		error_log( "METHOD: $method" );
450		error_log( "URL: $url" );
451		error_log( "POST BODY: $post_body" );
452		error_log( "VERIFY_ARGS: " . print_r( $verify_api_user_args, 1 ) );
453		error_log( "VERIFIED USER_ID: " . (int) $user_id );
454		error_log( "-- end json api via jetpack debugging -- " );
455		*/
456
457		if ( 'en' !== $locale ) {
458		// .org mo files are named slightly different from .com, and all we have is this the locale -- try to guess them.
459		$new_locale = $locale;
460		if ( strpos( $locale, '-' ) !== false ) {
461		$locale_pieces = explode( '-', $locale );
462		$new_locale = $locale_pieces[0];
463		$new_locale .= ( ! empty( $locale_pieces[1] ) ) ? '_' . strtoupper( $locale_pieces[1] ) : '';
464		} else {
465		// .com might pass 'fr' because thats what our language files are named as, where core seems
466		// to do fr_FR - so try that if we don't think we can load the file.
467		if ( ! file_exists( WP_LANG_DIR . '/' . $locale . '.mo' ) ) {
468		$new_locale = $locale . '_' . strtoupper( $locale );
469		}
470		}
471
472		if ( file_exists( WP_LANG_DIR . '/' . $new_locale . '.mo' ) ) {
473		unload_textdomain( 'default' );
474		load_textdomain( 'default', WP_LANG_DIR . '/' . $new_locale . '.mo' );
475		}
476		}
477
478		$old_user = wp_get_current_user();
479		wp_set_current_user( $user_id );
480
481		$token = Jetpack_Data::get_access_token( get_current_user_id() );
482		if ( !$token \|\| is_wp_error( $token ) ) {
483		return false;
484		}
485
486		define( 'REST_API_REQUEST', true );
487		define( 'WPCOM_JSON_API__BASE', 'public-api.wordpress.com/rest/v1' );
488
489		// needed?
490		require_once ABSPATH . 'wp-admin/includes/admin.php';
491
492		require_once JETPACK__PLUGIN_DIR . 'class.json-api.php';
493		$api = WPCOM_JSON_API::init( $method, $url, $post_body );
494		$api->token_details['user'] = $user_details;
495		require_once JETPACK__PLUGIN_DIR . 'class.json-api-endpoints.php';
496
497		$display_errors = ini_set( 'display_errors', 0 );
498		ob_start();
499		$content_type = $api->serve( false );
500		$output = ob_get_clean();
501		ini_set( 'display_errors', $display_errors );
502
503		$nonce = wp_generate_password( 10, false );
504		$hmac = hash_hmac( 'md5', $nonce . $output, $token->secret );
505
506		wp_set_current_user( isset( $old_user->ID ) ? $old_user->ID : 0 );
507
508		return array(
509		(string) $output,
510		(string) $nonce,
511		(string) $hmac,
512		);
513		}
514		}
515

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class.jetpack-xmlrpc-server.php (1 issue)

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