/wp-content/plugins/jetpack/class.json-api.php
PHP | 447 lines | 342 code | 81 blank | 24 comment | 74 complexity | bc686c162a17c82647ee574d5a2c37bd MD5 | raw file
Possible License(s): Apache-2.0, AGPL-1.0, LGPL-2.1, GPL-2.0
- <?php
- defined( 'WPCOM_JSON_API__DEBUG' ) or define( 'WPCOM_JSON_API__DEBUG', false );
- class WPCOM_JSON_API {
- static $self = null;
- var $endpoints = array();
- var $token_details = array();
- var $method = '';
- var $url = '';
- var $path = '';
- var $query = array();
- var $post_body = null;
- var $files = null;
- var $content_type = null;
- var $accept = '';
- var $_server_https;
- var $exit = true;
- var $public_api_scheme = 'https';
- var $trapped_error = null;
- static function init( $method = null, $url = null, $post_body = null ) {
- if ( !self::$self ) {
- $class = function_exists( 'get_called_class' ) ? get_called_class() : __CLASS__;
- self::$self = new $class( $method, $url, $post_body );
- }
- return self::$self;
- }
- function add( WPCOM_JSON_API_Endpoint $endpoint ) {
- if ( !isset( $this->endpoints[$endpoint->path] ) ) {
- $this->endpoints[$endpoint->path] = array();
- }
- $this->endpoints[$endpoint->path][$endpoint->method] = $endpoint;
- }
- static function is_truthy( $value ) {
- switch ( strtolower( (string) $value ) ) {
- case '1' :
- case 't' :
- case 'true' :
- return true;
- }
- return false;
- }
- function __construct() {
- $args = func_get_args();
- call_user_func_array( array( $this, 'setup_inputs' ), $args );
- }
- function setup_inputs( $method = null, $url = null, $post_body = null ) {
- if ( is_null( $method ) ) {
- $this->method = strtoupper( $_SERVER['REQUEST_METHOD'] );
- } else {
- $this->method = strtoupper( $method );
- }
- if ( is_null( $url ) ) {
- $this->url = ( is_ssl() ? 'https' : 'http' ) . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
- } else {
- $this->url = $url;
- }
- $parsed = parse_url( $this->url );
- $this->path = $parsed['path'];
- if ( !empty( $parsed['query'] ) ) {
- wp_parse_str( $parsed['query'], $this->query );
- }
- if ( isset( $_SERVER['HTTP_ACCEPT'] ) && $_SERVER['HTTP_ACCEPT'] ) {
- $this->accept = $_SERVER['HTTP_ACCEPT'];
- }
- if ( 'POST' === $this->method ) {
- if ( is_null( $post_body ) ) {
- $this->post_body = file_get_contents( 'php://input' );
- if ( isset( $_SERVER['HTTP_CONTENT_TYPE'] ) && $_SERVER['HTTP_CONTENT_TYPE'] ) {
- $this->content_type = $_SERVER['HTTP_CONTENT_TYPE'];
- } elseif ( isset( $_SERVER['CONTENT_TYPE'] ) && $_SERVER['CONTENT_TYPE'] ) {
- $this->content_type = $_SERVER['CONTENT_TYPE'] ;
- } elseif ( '{' === $this->post_body[0] ) {
- $this->content_type = 'application/json';
- } else {
- $this->content_type = 'application/x-www-form-urlencoded';
- }
- if ( 0 === strpos( strtolower( $this->content_type ), 'multipart/' ) ) {
- $this->post_body = http_build_query( stripslashes_deep( $_POST ) );
- $this->files = $_FILES;
- $this->content_type = 'multipart/form-data';
- }
- } else {
- $this->post_body = $post_body;
- $this->content_type = '{' === $this->post_body[0] ? 'application/json' : 'application/x-www-form-urlencoded';
- }
- } else {
- $this->post_body = null;
- $this->content_type = null;
- }
- $this->_server_https = array_key_exists( 'HTTPS', $_SERVER ) ? $_SERVER['HTTPS'] : '--UNset--';
- }
- function initialize() {
- $this->token_details['blog_id'] = Jetpack::get_option( 'id' );
- }
- function serve( $exit = true ) {
- $this->exit = (bool) $exit;
- add_filter( 'home_url', array( $this, 'ensure_http_scheme_of_home_url' ), 10, 3 );
- add_filter( 'user_can_richedit', '__return_true' );
- add_filter( 'comment_edit_pre', array( $this, 'comment_edit_pre' ) );
- $this->initialize();
- // Normalize path
- $this->path = untrailingslashit( $this->path );
- $this->path = preg_replace( '#^/rest/v1#', '', $this->path );
- $allowed_methods = array( 'GET', 'POST' );
- $four_oh_five = false;
- $is_help = preg_match( '#/help/?$#i', $this->path );
- $matching_endpoints = array();
- if ( $is_help ) {
- $this->path = substr( rtrim( $this->path, '/' ), 0, -5 );
- // Show help for all matching endpoints regardless of method
- $methods = $allowed_methods;
- $find_all_matching_endpoints = true;
- // How deep to truncate each endpoint's path to see if it matches this help request
- $depth = substr_count( $this->path, '/' ) + 1;
- if ( false !== stripos( $this->accept, 'javascript' ) || false !== stripos( $this->accept, 'json' ) ) {
- $help_content_type = 'json';
- } else {
- $help_content_type = 'html';
- }
- } else {
- if ( in_array( $this->method, $allowed_methods ) ) {
- // Only serve requested method
- $methods = array( $this->method );
- $find_all_matching_endpoints = false;
- } else {
- // We don't allow this requested method - find matching endpoints and send 405
- $methods = $allowed_methods;
- $find_all_matching_endpoints = true;
- $four_oh_five = true;
- }
- }
- // Find which endpoint to serve
- $found = false;
- foreach ( $this->endpoints as $endpoint_path => $endpoints_by_method ) {
- foreach ( $methods as $method ) {
- if ( !isset( $endpoints_by_method[$method] ) ) {
- continue;
- }
- // Normalize
- $endpoint_path = untrailingslashit( $endpoint_path );
- if ( $is_help ) {
- // Truncate path at help depth
- $endpoint_path = join( '/', array_slice( explode( '/', $endpoint_path ), 0, $depth ) );
- }
- // Generate regular expression from sprintf()
- $endpoint_path_regex = str_replace( array( '%s', '%d' ), array( '([^/?&]+)', '(\d+)' ), $endpoint_path );
- if ( !preg_match( "#^$endpoint_path_regex\$#", $this->path, $path_pieces ) ) {
- // This endpoint does not match the requested path.
- continue;
- }
- $found = true;
- if ( $find_all_matching_endpoints ) {
- $matching_endpoints[] = array( $endpoints_by_method[$method], $path_pieces );
- } else {
- // The method parameters are now in $path_pieces
- $endpoint = $endpoints_by_method[$method];
- break 2;
- }
- }
- }
- if ( !$found ) {
- return $this->output( 404, '', 'text/plain' );
- }
- if ( $four_oh_five ) {
- $allowed_methods = array();
- foreach ( $matching_endpoints as $matching_endpoint ) {
- $allowed_methods[] = $matching_endpoint[0]->method;
- }
- header( 'Allow: ' . strtoupper( join( ',', array_unique( $allowed_methods ) ) ) );
- return $this->output( 405, array( 'error' => 'not_allowed', 'error_message' => 'Method not allowed' ) );
- }
- if ( $is_help ) {
- do_action( 'wpcom_json_api_output', 'help' );
- if ( 'json' === $help_content_type ) {
- $docs = array();
- foreach ( $matching_endpoints as $matching_endpoint ) {
- if ( !$matching_endpoint[0]->in_testing || WPCOM_JSON_API__DEBUG )
- $docs[] = call_user_func( array( $matching_endpoint[0], 'generate_documentation' ) );
- }
- return $this->output( 200, $docs );
- } else {
- status_header( 200 );
- foreach ( $matching_endpoints as $matching_endpoint ) {
- if ( !$matching_endpoint[0]->in_testing || WPCOM_JSON_API__DEBUG )
- call_user_func( array( $matching_endpoint[0], 'document' ) );
- }
- }
- exit;
- }
- if ( $endpoint->in_testing && !WPCOM_JSON_API__DEBUG ) {
- return $this->output( 404, '', 'text/plain' );
- }
- do_action( 'wpcom_json_api_output', $endpoint->stat );
- $response = $this->process_request( $endpoint, $path_pieces );
- if ( !$response ) {
- return $this->output( 500, '', 'text/plain' );
- } elseif ( is_wp_error( $response ) ) {
- $status_code = $response->get_error_data();
- if ( is_array( $status_code ) )
- $status_code = $status_code['status_code'];
- if ( !$status_code ) {
- $status_code = 400;
- }
- $response = array(
- 'error' => $response->get_error_code(),
- 'message' => $response->get_error_message(),
- );
- return $this->output( $status_code, $response );
- }
- return $this->output( 200, $response );
- }
- function process_request( WPCOM_JSON_API_Endpoint $endpoint, $path_pieces ) {
- return call_user_func_array( array( $endpoint, 'callback' ), $path_pieces );
- }
- function output( $status_code, $response = null, $content_type = 'application/json' ) {
- if ( is_null( $response ) ) {
- $response = new stdClass;
- }
- if ( 'text/plain' === $content_type ) {
- status_header( (int) $status_code );
- header( 'Content-Type: text/plain' );
- echo $response;
- if ( $this->exit ) {
- exit;
- }
- return $content_type;
- }
- if ( isset( $this->query['http_envelope'] ) && self::is_truthy( $this->query['http_envelope'] ) ) {
- $response = array(
- 'code' => (int) $status_code,
- 'headers' => array(
- array(
- 'name' => 'Content-Type',
- 'value' => $content_type,
- ),
- ),
- 'body' => $response,
- );
- $status_code = 200;
- $content_type = 'application/json';
- }
- status_header( (int) $status_code );
- header( "Content-Type: $content_type" );
- if ( isset( $this->query['callback'] ) && is_string( $this->query['callback'] ) ) {
- $callback = preg_replace( '/[^a-z0-9_.]/i', '', $this->query['callback'] );
- } else {
- $callback = false;
- }
- if ( $callback ) {
- echo "$callback(";
- }
- echo $this->json_encode( $response );
- if ( $callback ) {
- echo ");";
- }
- if ( $this->exit ) {
- exit;
- }
- return $content_type;
- }
- function ensure_http_scheme_of_home_url( $url, $path, $original_scheme ) {
- if ( $original_scheme ) {
- return $url;
- }
- return preg_replace( '#^https:#', 'http:', $url );
- }
- function comment_edit_pre( $comment_content ) {
- return htmlspecialchars_decode( $comment_content, ENT_QUOTES );
- }
- function json_encode( $data ) {
- return json_encode( $data );
- }
- function ends_with( $haystack, $needle ) {
- return $needle === substr( $haystack, -strlen( $needle ) );
- }
- // Returns the site's blog_id in the WP.com ecosystem
- function get_blog_id_for_output() {
- return $this->token_details['blog_id'];
- }
- // Returns the site's local blog_id
- function get_blog_id( $blog_id ) {
- return $GLOBALS['blog_id'];
- }
- function switch_to_blog_and_validate_user( $blog_id = 0, $verify_token_for_blog = true ) {
- if ( -1 == get_option( 'blog_public' ) && !current_user_can( 'read' ) ) {
- return new WP_Error( 'unauthorized', 'User cannot access this private blog.', 403 );
- }
- return $blog_id;
- }
- function post_like_count( $blog_id, $post_id ) {
- return 0;
- }
- function get_avatar_url( $email ) {
- add_filter( 'pre_option_show_avatars', '__return_true', 999 );
- $_SERVER['HTTPS'] = 'off';
- $avatar_img_element = get_avatar( $email, 96, '' );
- if ( !$avatar_img_element || is_wp_error( $avatar_img_element ) ) {
- $return = '';
- } elseif ( !preg_match( '#src=([\'"])?(.*?)(?(1)\\1|\s)#', $avatar_img_element, $matches ) ) {
- $return = '';
- } else {
- $return = esc_url_raw( htmlspecialchars_decode( $matches[2] ) );
- }
- remove_filter( 'pre_option_show_avatars', '__return_true', 999 );
- if ( '--UNset--' === $this->_server_https ) {
- unset( $_SERVER['HTTPS'] );
- } else {
- $_SERVER['HTTPS'] = $this->_server_https;
- }
- return $return;
- }
- /**
- * Traps `wp_die()` calls and outputs a JSON response instead.
- * The result is always output, never returned.
- *
- * @param string|null $error_code. Call with string to start the trapping. Call with null to stop.
- */
- function trap_wp_die( $error_code = null ) {
- // Stop trapping
- if ( is_null( $error_code ) ) {
- $this->trapped_error = null;
- remove_filter( 'wp_die_handler', array( $this, 'wp_die_handler_callback' ) );
- return;
- }
- // If API called via PHP, bail: don't do our custom wp_die(). Do the normal wp_die().
- if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
- if ( ! defined( 'REST_API_REQUEST' ) || ! REST_API_REQUEST ) {
- return;
- }
- } else {
- if ( ! defined( 'XMLRPC_REQUEST' ) || ! XMLRPC_REQUEST ) {
- return;
- }
- }
- // Start trapping
- $this->trapped_error = array(
- 'status' => 500,
- 'code' => $error_code,
- 'message' => '',
- );
- add_filter( 'wp_die_handler', array( $this, 'wp_die_handler_callback' ) );
- }
- function wp_die_handler_callback() {
- return array( $this, 'wp_die_handler' );
- }
- function wp_die_handler( $message, $title = '', $args = array() ) {
- $args = wp_parse_args( $args, array(
- 'response' => 500,
- ) );
- if ( $title ) {
- $message = "$title: $message";
- }
- $this->trapped_error['status'] = $args['response'];
- $this->trapped_error['message'] = wp_kses( $message, array() );
- // We still want to exit so that code execution stops where it should.
- // Attach the JSON output to WordPress' shutdown handler
- add_action( 'shutdown', array( $this, 'output_trapped_error' ), 0 );
- exit;
- }
- function output_trapped_error() {
- $this->exit = false; // We're already exiting once. Don't do it twice.
- $this->output( $this->trapped_error['status'], (object) array(
- 'error' => $this->trapped_error['code'],
- 'message' => $this->trapped_error['message'],
- ) );
- }
- }