As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
/**
* Jetpack JSON API.
*
* @package automattic/jetpack
*/
use Automattic\Jetpack\Status;
if ( ! defined( 'WPCOM_JSON_API__DEBUG' ) ) {
define( 'WPCOM_JSON_API__DEBUG', false );
}
require_once __DIR__ . '/sal/class.json-api-platform.php';
/**
* Jetpack JSON API.
*/
class WPCOM_JSON_API {
/**
* Static instance.
*
* @todo This should be private.
* @var self|null
*/
public static $self = null;
/**
* Registered endpoints.
*
* @var WPCOM_JSON_API_Endpoint[]
*/
public $endpoints = array();
/**
* Endpoint being processed.
*
* @var WPCOM_JSON_API_Endpoint
*/
public $endpoint = null;
/**
* Token details.
*
* @var array
*/
public $token_details = array();
/**
* Request HTTP method.
*
* @var string
*/
public $method = '';
/**
* Request URL.
*
* @var string
*/
public $url = '';
/**
* Path part of the request URL.
*
* @var string
*/
public $path = '';
/**
* Version extracted from the request URL.
*
* @var string|null
*/
public $version = null;
/**
* Parsed query data.
*
* @var array
*/
public $query = array();
/**
* Post body, if the request is a POST.
*
* @var string|null
*/
public $post_body = null;
/**
* Copy of `$_FILES` if the request is a POST.
*
* @var null|array
*/
public $files = null;
/**
* Content type of the request.
*
* @var string|null
*/
public $content_type = null;
/**
* Value of `$_SERVER['HTTP_ACCEPT']`, if any
*
* @var string
*/
public $accept = '';
/**
* Value of `$_SERVER['HTTPS']`, or "--UNset--" if unset.
*
* @var string
*/
public $_server_https; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
/**
* Whether to exit after serving a response.
*
* @var bool
*/
public $exit = true;
/**
* Public API scheme.
*
* @var string
*/
public $public_api_scheme = 'https';
/**
* Output status code.
*
* @var int
*/
public $output_status_code = 200;
/**
* Trapped error.
*
* @var null|array
*/
public $trapped_error = null;
/**
* Whether output has been done.
*
* @var bool
*/
public $did_output = false;
/**
* Extra HTTP headers.
*
* @var string
*/
public $extra_headers = array();
/**
* AMP source origin.
*
* @var string
*/
public $amp_source_origin = null;
/**
* Initialize.
*
* @param string|null $method As for `$this->setup_inputs()`.
* @param string|null $url As for `$this->setup_inputs()`.
* @param string|null $post_body As for `$this->setup_inputs()`.
* @return WPCOM_JSON_API instance
*/
public static function init( $method = null, $url = null, $post_body = null ) {
if ( ! self::$self ) {
self::$self = new static( $method, $url, $post_body );
}
return self::$self;
}
/**
* Add an endpoint.
*
* @param WPCOM_JSON_API_Endpoint $endpoint Endpoint to add.
*/
public function add( WPCOM_JSON_API_Endpoint $endpoint ) {
// @todo Determine if anything depends on this being serialized rather than e.g. JSON.
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_serialize -- Legacy, possibly depended on elsewhere.
$path_versions = serialize(
array(
$endpoint->path,
$endpoint->min_version,
$endpoint->max_version,
)
);
if ( ! isset( $this->endpoints[ $path_versions ] ) ) {
$this->endpoints[ $path_versions ] = array();
}
$this->endpoints[ $path_versions ][ $endpoint->method ] = $endpoint;
}
/**
* Determine if a string is truthy. If it's not a string, which can happen with
* not well-formed data coming from Jetpack sites, we still consider it a truthy value.
*
* @param mixed $value true, 1, "1", "t", and "true" (case insensitive) are truthy, everything else isn't.
* @return bool
*/
public static function is_truthy( $value ) {
if ( true === $value ) {
return true;
}
if ( 1 === $value ) {
return true;
}
if ( ! is_string( $value ) ) {
return false;
}
switch ( strtolower( $value ) ) {
case '1':
case 't':
case 'true':
return true;
}
return false;
}
/**
* Determine if a string is falsey.
*
* @param mixed $value false, 0, "0", "f", and "false" (case insensitive) are falsey, everything else isn't.
* @return bool
*/
public static function is_falsy( $value ) {
if ( false === $value ) {
return true;
}
if ( 0 === $value ) {
return true;
}
if ( ! is_string( $value ) ) {
return false;
}
switch ( strtolower( $value ) ) {
case '0':
case 'f':
case 'false':
return true;
}
return false;
}
/**
* Constructor.
*
* @todo This should be private.
* @param string|null $method As for `$this->setup_inputs()`.
* @param string|null $url As for `$this->setup_inputs()`.
* @param string|null $post_body As for `$this->setup_inputs()`.
*/
public function __construct( $method = null, $url = null, $post_body = null ) {
$this->setup_inputs( $method, $url, $post_body );
}
/**
* Setup inputs.
*
* @param string|null $method Request HTTP method. Fetched from `$_SERVER` if null.
* @param string|null $url URL requested. Determined from `$_SERVER` if null.
* @param string|null $post_body POST body. Read from `php://input` if null and method is POST.
*/
public function setup_inputs( $method = null, $url = null, $post_body = null ) {
if ( $method === null ) {
$this->method = isset( $_SERVER['REQUEST_METHOD'] ) ? strtoupper( filter_var( wp_unslash( $_SERVER['REQUEST_METHOD'] ) ) ) : '';
} else {
$this->method = strtoupper( $method );
}
if ( $url === null ) {
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Sniff misses the esc_url_raw.
$this->url = esc_url_raw( set_url_scheme( 'http://' . ( isset( $_SERVER['HTTP_HOST'] ) ? wp_unslash( $_SERVER['HTTP_HOST'] ) : '' ) . ( isset( $_SERVER['REQUEST_URI'] ) ? wp_unslash( $_SERVER['REQUEST_URI'] ) : '' ) ) );
} else {
$this->url = $url;
}
$parsed = wp_parse_url( $this->url );
if ( ! empty( $parsed['path'] ) ) {
$this->path = $parsed['path'];
}
if ( ! empty( $parsed['query'] ) ) {
wp_parse_str( $parsed['query'], $this->query );
}
if ( ! empty( $_SERVER['HTTP_ACCEPT'] ) ) {
$this->accept = filter_var( wp_unslash( $_SERVER['HTTP_ACCEPT'] ) );
}
if ( 'POST' === $this->method ) {
if ( $post_body === null ) {
$this->post_body = file_get_contents( 'php://input' );
if ( ! empty( $_SERVER['HTTP_CONTENT_TYPE'] ) ) {
$this->content_type = filter_var( wp_unslash( $_SERVER['HTTP_CONTENT_TYPE'] ) );
} elseif ( ! empty( $_SERVER['CONTENT_TYPE'] ) ) {
$this->content_type = filter_var( wp_unslash( $_SERVER['CONTENT_TYPE'] ) );
} elseif ( isset( $this->post_body[0] ) && '{' === $this->post_body[0] ) {
$this->content_type = 'application/json';
} else {
$this->content_type = 'application/x-www-form-urlencoded';
}
if ( str_starts_with( strtolower( $this->content_type ), 'multipart/' ) ) {
// phpcs:ignore WordPress.Security.NonceVerification.Missing
$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 = isset( $this->post_body[0] ) && '{' === $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 ) ? filter_var( wp_unslash( $_SERVER['HTTPS'] ) ) : '--UNset--';
}
/**
* Initialize.
*
* @return null|WP_Error (although this implementation always returns null)
*/
public function initialize() {
$this->token_details['blog_id'] = Jetpack_Options::get_option( 'id' );
return null;
}
/**
* Checks if the current request is authorized with a blog token.
* This method is overridden by a child class in WPCOM.
*
* @since 9.1.0
*
* @param boolean|int $site_id The site id.
* @return boolean
*/
public function is_jetpack_authorized_for_site( $site_id = false ) {
if ( ! $this->token_details ) {
return false;
}
$token_details = (object) $this->token_details;
$site_in_token = (int) $token_details->blog_id;
if ( $site_in_token < 1 ) {
return false;
}
if ( $site_id && $site_in_token !== (int) $site_id ) {
return false;
}
if ( (int) get_current_user_id() !== 0 ) {
// If Jetpack blog token is used, no logged-in user should exist.
return false;
}
return true;
}
/**
* Checks if the current request is authorized with an upload token.
* This method is overridden by a child class in WPCOM.
*
* @since 13.5
* @return boolean
*/
public function is_authorized_with_upload_token() {
return false;
}
/**
* Serve.
*
* @param bool $exit Whether to exit.
* @return string|null Content type (assuming it didn't exit), or null in certain error cases.
*/
public function serve( $exit = true ) {
ini_set( 'display_errors', false ); // phpcs:ignore WordPress.PHP.IniSet.display_errors_Blacklisted
$this->exit = (bool) $exit;
// This was causing problems with Jetpack, but is necessary for wpcom
// @see https://github.com/Automattic/jetpack/pull/2603
// @see r124548-wpcom .
if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
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' ) );
$initialization = $this->initialize();
if ( 'OPTIONS' === $this->method ) {
/**
* Fires before the page output.
* Can be used to specify custom header options.
*
* @module json-api
*
* @since 3.1.0
*/
do_action( 'wpcom_json_api_options' );
return $this->output( 200, '', 'text/plain' );
}
if ( is_wp_error( $initialization ) ) {
$this->output_error( $initialization );
return;
}
// Normalize path and extract API version.
$this->path = untrailingslashit( $this->path );
if ( preg_match( '#^/rest/v(\d+(\.\d+)*)#', $this->path, $matches ) ) {
$this->path = substr( $this->path, strlen( $matches[0] ) );
$this->version = $matches[1];
}
$allowed_methods = array( 'GET', 'POST' );
$four_oh_five = false;
$is_help = preg_match( '#/help/?$#i', $this->path );
$matching_endpoints = array();
if ( $is_help ) {
$origin = get_http_origin();
if ( ! empty( $origin ) && 'GET' === $this->method ) {
header( 'Access-Control-Allow-Origin: ' . esc_url_raw( $origin ) );
}
$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';
}
} elseif ( in_array( $this->method, $allowed_methods, true ) ) {
// 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;
$path_pieces = array();
foreach ( $this->endpoints as $endpoint_path_versions => $endpoints_by_method ) {
// @todo Determine if anything depends on this being serialized rather than e.g. JSON.
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_unserialize -- Legacy, possibly depended on elsewhere.
$endpoint_path_versions = unserialize( $endpoint_path_versions );
$endpoint_path = $endpoint_path_versions[0];
$endpoint_min_version = $endpoint_path_versions[1];
$endpoint_max_version = $endpoint_path_versions[2];
// Make sure max_version is not less than min_version.
if ( version_compare( $endpoint_max_version, $endpoint_min_version, '<' ) ) {
$endpoint_max_version = $endpoint_min_version;
}
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.
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $depth is set when $is_help is true.
$endpoint_path = implode( '/', 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;
}
if ( version_compare( $this->version, $endpoint_min_version, '<' ) || version_compare( $this->version, $endpoint_max_version, '>' ) ) {
// This endpoint does not match the requested version.
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( implode( ',', array_unique( $allowed_methods ) ) ) );
return $this->output(
405,
array(
'error' => 'not_allowed',
'error_message' => 'Method not allowed',
)
);
}
if ( $is_help ) {
/**
* Fires before the API output.
*
* @since 1.9.0
*
* @param string help.
*/
do_action( 'wpcom_json_api_output', 'help' );
$proxied = function_exists( 'wpcom_is_proxied_request' ) ? wpcom_is_proxied_request() : false;
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $help_content_type is set when $is_help is true.
if ( 'json' === $help_content_type ) {
$docs = array();
foreach ( $matching_endpoints as $matching_endpoint ) {
if ( $matching_endpoint[0]->is_publicly_documentable() || $proxied || 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]->is_publicly_documentable() || $proxied || WPCOM_JSON_API__DEBUG ) {
call_user_func( array( $matching_endpoint[0], 'document' ) );
}
}
}
exit( 0 );
}
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $endpoint is set when $find_all_matching_endpoints is false and $found is true, which is guaranteed here.
if ( $endpoint->in_testing && ! WPCOM_JSON_API__DEBUG ) {
return $this->output( 404, '', 'text/plain' );
}
/** This action is documented in class.json-api.php */
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $endpoint is set when $find_all_matching_endpoints is false and $found is true, which is guaranteed here.
do_action( 'wpcom_json_api_output', $endpoint->stat );
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable -- $endpoint is set when $find_all_matching_endpoints is false and $found is true, which is guaranteed here.
$response = $this->process_request( $endpoint, $path_pieces );
if ( ! $response && ! is_array( $response ) ) {
return $this->output( 500, '', 'text/plain' );
} elseif ( is_wp_error( $response ) ) {
return $this->output_error( $response );
}
$output_status_code = $this->output_status_code;
$this->set_output_status_code();
return $this->output( $output_status_code, $response, 'application/json', $this->extra_headers );
}
/**
* Process a request.
*
* @param WPCOM_JSON_API_Endpoint $endpoint Endpoint.
* @param array $path_pieces Path pieces.
* @return array|WP_Error Return value from the endpoint's callback.
*/
public function process_request( WPCOM_JSON_API_Endpoint $endpoint, $path_pieces ) {
$this->endpoint = $endpoint;
$this->maybe_switch_to_token_user_and_site();
return call_user_func_array( array( $endpoint, 'callback' ), $path_pieces );
}
/**
* Output a response or error without exiting.
*
* @param int $status_code HTTP status code.
* @param mixed $response Response data.
* @param string $content_type Content type of the response.
*/
public function output_early( $status_code, $response = null, $content_type = 'application/json' ) {
$exit = $this->exit;
$this->exit = false;
if ( is_wp_error( $response ) ) {
$this->output_error( $response );
} else {
$this->output( $status_code, $response, $content_type );
}
$this->exit = $exit;
if ( ! defined( 'XMLRPC_REQUEST' ) || ! XMLRPC_REQUEST ) {
$this->finish_request();
}
}
/**
* Set output status code.
*
* @param int $code HTTP status code.
*/
public function set_output_status_code( $code = 200 ) {
$this->output_status_code = $code;
}
/**
* Output a response.
*
* @param int $status_code HTTP status code.
* @param mixed $response Response data.
* @param string $content_type Content type of the response.
* @param array $extra Additional HTTP headers.
* @return string Content type (assuming it didn't exit).
*/
public function output( $status_code, $response = null, $content_type = 'application/json', $extra = array() ) {
$status_code = (int) $status_code;
// In case output() was called before the callback returned.
if ( $this->did_output ) {
if ( $this->exit ) {
exit( 0 );
}
return $content_type;
}
$this->did_output = true;
// 400s and 404s are allowed for all origins
if ( 404 === $status_code || 400 === $status_code ) {
header( 'Access-Control-Allow-Origin: *' );
}
/* Add headers for form submission from <amp-form/> */
if ( $this->amp_source_origin ) {
header( 'Access-Control-Allow-Origin: ' . wp_unslash( $this->amp_source_origin ) );
header( 'Access-Control-Allow-Credentials: true' );
}
if ( $response === null ) {
$response = new stdClass();
}
if ( 'text/plain' === $content_type ||
'text/html' === $content_type ) {
status_header( $status_code );
header( 'Content-Type: ' . $content_type );
foreach ( $extra as $key => $value ) {
header( "$key: $value" );
}
echo $response; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
if ( $this->exit ) {
exit( 0 );
}
return $content_type;
}
$response = $this->filter_fields( $response );
if ( isset( $this->query['http_envelope'] ) && self::is_truthy( $this->query['http_envelope'] ) ) {
$response = static::wrap_http_envelope( $status_code, $response, $content_type, $extra );
$status_code = 200;
$content_type = 'application/json';
}
status_header( $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 ( $callback ) {
// Mitigate Rosetta Flash [1] by setting the Content-Type-Options: nosniff header
// and by prepending the JSONP response with a JS comment.
// [1] <https://blog.miki.it/2014/7/8/abusing-jsonp-with-rosetta-flash/index.html>.
echo "/**/$callback("; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- This is JSONP output, not HTML.
}
echo $this->json_encode( $response, JSON_UNESCAPED_SLASHES ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- This is JSON or JSONP output, not HTML.
if ( $callback ) {
echo ');';
}
if ( $this->exit ) {
exit( 0 );
}
return $content_type;
}
/**
* Wrap JSON API response into an HTTP 200 one.
*
* @param int $status_code HTTP status code.
* @param mixed $response Response body.
* @param string $content_type Content type.
* @param array|null $extra Extra data.
*
* @return array
*/
public static function wrap_http_envelope( $status_code, $response, $content_type, $extra = null ) {
$headers = array(
array(
'name' => 'Content-Type',
'value' => $content_type,
),
);
if ( is_array( $extra ) ) {
foreach ( $extra as $key => $value ) {
$headers[] = array(
'name' => $key,
'value' => $value,
);
}
}
return array(
'code' => (int) $status_code,
'headers' => $headers,
'body' => $response,
);
}
/**
* Serialize an error.
*
* @param WP_Error $error Error.
* @return array with 'status_code' and 'errors' data.
*/
public static function serializable_error( $error ) {
$status_code = $error->get_error_data();
if ( is_array( $status_code ) && isset( $status_code['status_code'] ) ) {
$status_code = $status_code['status_code'];
}
if ( ! $status_code ) {
$status_code = 400;
}
$response = array(
'error' => $error->get_error_code(),
'message' => $error->get_error_message(),
);
$additional_data = $error->get_error_data( 'additional_data' );
if ( $additional_data ) {
$response['data'] = $additional_data;
}
return array(
'status_code' => $status_code,
'errors' => $response,
);
}
/**
* Output an error.
*
* @param WP_Error $error Error.
* @return string Content type (assuming it didn't exit).
*/
public function output_error( $error ) {
$error_response = static::serializable_error( $error );
return $this->output( $error_response['status_code'], $error_response['errors'] );
}
/**
* Filter fields in a response.
*
* @param array|object $response Response.
* @return array|object Filtered response.
*/
public function filter_fields( $response ) {
if ( empty( $this->query['fields'] ) || ( is_array( $response ) && ! empty( $response['error'] ) ) || ! empty( $this->endpoint->custom_fields_filtering ) ) {
return $response;
}
$fields = array_map( 'trim', explode( ',', $this->query['fields'] ) );
if ( is_object( $response ) ) {
$response = (array) $response;
}
$has_filtered = false;
if ( is_array( $response ) && empty( $response['ID'] ) ) {
$keys_to_filter = array(
'categories',
'comments',
'connections',
'domains',
'groups',
'likes',
'media',
'notes',
'posts',
'services',
'sites',
'suggestions',
'tags',
'themes',
'topics',
'users',
);
foreach ( $keys_to_filter as $key_to_filter ) {
if ( ! isset( $response[ $key_to_filter ] ) || $has_filtered ) {
continue;
}
foreach ( $response[ $key_to_filter ] as $key => $values ) {
if ( is_object( $values ) ) {
if ( is_object( $response[ $key_to_filter ] ) ) {
// phpcs:ignore Squiz.PHP.DisallowMultipleAssignments.Found -- False positive.
$response[ $key_to_filter ]->$key = (object) array_intersect_key( ( (array) $values ), array_flip( $fields ) );
} elseif ( is_array( $response[ $key_to_filter ] ) ) {
$response[ $key_to_filter ][ $key ] = (object) array_intersect_key( ( (array) $values ), array_flip( $fields ) );
}
} elseif ( is_array( $values ) ) {
$response[ $key_to_filter ][ $key ] = array_intersect_key( $values, array_flip( $fields ) );
}
}
$has_filtered = true;
}
}
if ( ! $has_filtered ) {
if ( is_object( $response ) ) {
$response = (object) array_intersect_key( (array) $response, array_flip( $fields ) );
} elseif ( is_array( $response ) ) {
$response = array_intersect_key( $response, array_flip( $fields ) );
}
}
return $response;
}
/**
* Filter for `home_url`.
*
* If `$original_scheme` is null, turns an https URL to http.
*
* @param string $url The complete home URL including scheme and path.
* @param string $path Path relative to the home URL. Blank string if no path is specified.
* @param string|null $original_scheme Scheme to give the home URL context. Accepts 'http', 'https', 'relative', 'rest', or null.
* @return string URL.
*/
public function ensure_http_scheme_of_home_url( $url, $path, $original_scheme ) {
if ( $original_scheme ) {
return $url;
}
return preg_replace( '#^https:#', 'http:', $url );
}
/**
* Decode HTML special characters in comment content.
*
* @param string $comment_content Comment content.
* @return string
*/
public function comment_edit_pre( $comment_content ) {
return htmlspecialchars_decode( $comment_content, ENT_QUOTES );
}
/**
* JSON encode.
*
* @param mixed $value The value to encode.
* @param int $flags Options to be passed to json_encode(). Default 0.
* @param int $depth Maximum depth to walk through $value. Must be greater than 0.
*
* @return string|false
*/
public function json_encode( $value, $flags = 0, $depth = 512 ) {
return wp_json_encode( $value, $flags, $depth );
}
/**
* Test if a string ends with a string.
*
* @param string $haystack String to check.
* @param string $needle Suffix to check.
* @return bool
*/
public function ends_with( $haystack, $needle ) {
return substr( $haystack, -strlen( $needle ) ) === $needle;
}
/**
* Returns the site's blog_id in the WP.com ecosystem
*
* @return int
*/
public function get_blog_id_for_output() {
return $this->token_details['blog_id'];
}
/**
* Returns the site's local blog_id.
*
* @param int $blog_id Blog ID.
* @return int
*/
public function get_blog_id( $blog_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
return $GLOBALS['blog_id'];
}
/**
* Switch to blog and validate user.
*
* @param int $blog_id Blog ID.
* @param bool $verify_token_for_blog Whether to verify the token.
* @return int Blog ID.
*/
public function switch_to_blog_and_validate_user( $blog_id = 0, $verify_token_for_blog = true ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
if ( $this->is_restricted_blog( $blog_id ) ) {
return new WP_Error( 'unauthorized', 'User cannot access this restricted blog', 403 );
}
/**
* If this is a private site we check for 2 things:
* 1. In case of user based authentication, we need to check if the logged-in user has the 'read' capability.
* 2. In case of site based authentication, make sure the endpoint accepts it.
*/
if ( ( new Status() )->is_private_site() &&
! current_user_can( 'read' ) &&
! $this->endpoint->accepts_site_based_authentication()
) {
return new WP_Error( 'unauthorized', 'User cannot access this private blog.', 403 );
}
return $blog_id;
}
/**
* Switch to a user and blog based on the current request's Jetpack token when the endpoint accepts this feature.
*
* @return void
*/
protected function maybe_switch_to_token_user_and_site() {
if ( ! $this->endpoint->allow_jetpack_token_auth ) {
return;
}
if ( ! class_exists( 'Jetpack_Server_Version' ) ) {
return;
}
$token = Jetpack_Server_Version::get_token_from_authorization_header();
if ( ! $token || is_wp_error( $token ) ) {
return;
}
if ( get_current_user_id() !== $token->user_id ) {
wp_set_current_user( $token->user_id );
}
if ( get_current_blog_id() !== $token->blog_id ) {
switch_to_blog( $token->blog_id );
}
}
/**
* Returns true if the specified blog ID is a restricted blog
*
* @param int $blog_id Blog ID.
* @return bool
*/
public function is_restricted_blog( $blog_id ) {
/**
* Filters all REST API access and return a 403 unauthorized response for all Restricted blog IDs.
*
* @module json-api
*
* @since 3.4.0
*
* @param array $array Array of Blog IDs.
*/
$restricted_blog_ids = apply_filters( 'wpcom_json_api_restricted_blog_ids', array() );
return true === in_array( $blog_id, $restricted_blog_ids ); // phpcs:ignore WordPress.PHP.StrictInArray.MissingTrueStrict -- I don't trust filters to return the right types.
}
/**
* Post like count.
*
* @param int $blog_id Blog ID.
* @param int $post_id Post ID.
* @return int
*/
public function post_like_count( $blog_id, $post_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
return 0;
}
/**
* Is liked?
*
* @param int $blog_id Blog ID.
* @param int $post_id Post ID.
* @return bool
*/
public function is_liked( $blog_id, $post_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
return false;
}
/**
* Is reblogged?
*
* @param int $blog_id Blog ID.
* @param int $post_id Post ID.
* @return bool
*/
public function is_reblogged( $blog_id, $post_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
return false;
}
/**
* Is following?
*
* @param int $blog_id Blog ID.
* @return bool
*/
public function is_following( $blog_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
return false;
}
/**
* Add global ID.
*
* @param int $blog_id Blog ID.
* @param int $post_id Post ID.
* @return string
*/
public function add_global_ID( $blog_id, $post_id ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable, WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
return '';
}
/**
* Return a count of comment likes.
* This method is overridden by a child class in WPCOM.
*
* @since 13.5
* @return int
*/
public function comment_like_count() {
func_get_args(); // @phan-suppress-current-line PhanPluginUseReturnValueInternalKnown -- This is just here so Phan realizes the wpcom version does this.
return 0;
}
/**
* Get avatar URL.
*
* @param string $email Email.
* @param array $args Args for `get_avatar_url()`.
* @return string|false
*/
public function get_avatar_url( $email, $args = null ) {
if ( function_exists( 'wpcom_get_avatar_url' ) ) {
$ret = wpcom_get_avatar_url( $email, $args['size'] ?? 96, $args['default'] ?? '', false, $args['force_default'] ?? false );
return $ret ? $ret[0] : false;
} else {
return null === $args
? get_avatar_url( $email )
: get_avatar_url( $email, $args );
}
}
/**
* Counts the number of comments on a site, including certain comment types.
*
* @param int $post_id Post ID.
* @return object The number of counts keyed by status, matching the output of https://developer.wordpress.org/reference/functions/get_comment_count/.
*/
public function wp_count_comments( $post_id ) {
global $wpdb;
if ( 0 !== $post_id ) {
return wp_count_comments( $post_id );
}
$counts = array(
'total_comments' => 0,
'all' => 0,
);
/**
* Exclude certain comment types from comment counts in the REST API.
*
* @since 6.9.0
* @deprecated 11.1
* @module json-api
*
* @param array Array of comment types to exclude (default: 'order_note', 'webhook_delivery', 'review', 'action_log')
*/
$exclude = apply_filters_deprecated( 'jetpack_api_exclude_comment_types_count', array( 'order_note', 'webhook_delivery', 'review', 'action_log' ), 'jetpack-11.1', 'jetpack_api_include_comment_types_count' ); // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
/**
* Include certain comment types in comment counts in the REST API.
* Note: the default array of comment types includes an empty string,
* to support comments posted before WP 5.5, that used an empty string as comment type.
*
* @since 11.1
* @module json-api
*
* @param array Array of comment types to include (default: 'comment', 'pingback', 'trackback')
*/
$include = apply_filters(
'jetpack_api_include_comment_types_count',
array( 'comment', 'pingback', 'trackback', '' )
);
if ( empty( $include ) ) {
return wp_count_comments( $post_id );
}
// The following caching mechanism is based on what the get_comments() function uses.
$key = md5( serialize( $include ) ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_serialize
$last_changed = wp_cache_get_last_changed( 'comment' );
$cache_key = "wp_count_comments:$key:$last_changed";
$count = wp_cache_get( $cache_key, 'jetpack-json-api' );
if ( false === $count ) {
array_walk( $include, 'esc_sql' );
$where = sprintf(
"WHERE comment_type IN ( '%s' )",
implode( "','", $include )
);
// phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- `$where` is built with escaping just above.
$count = $wpdb->get_results(
"SELECT comment_approved, COUNT(*) AS num_comments
FROM $wpdb->comments
{$where}
GROUP BY comment_approved
"
);
// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
wp_cache_add( $cache_key, $count, 'jetpack-json-api' );
}
$approved = array(
'0' => 'moderated',
'1' => 'approved',
'spam' => 'spam',
'trash' => 'trash',
'post-trashed' => 'post-trashed',
);
// <https://developer.wordpress.org/reference/functions/get_comment_count/#source>
foreach ( $count as $row ) {
if ( ! in_array( $row->comment_approved, array( 'post-trashed', 'trash', 'spam' ), true ) ) {
$counts['all'] += $row->num_comments;
$counts['total_comments'] += $row->num_comments;
} elseif ( ! in_array( $row->comment_approved, array( 'post-trashed', 'trash' ), true ) ) {
$counts['total_comments'] += $row->num_comments;
}
if ( isset( $approved[ $row->comment_approved ] ) ) {
$counts[ $approved[ $row->comment_approved ] ] = $row->num_comments;
}
}
foreach ( $approved as $key ) {
if ( empty( $counts[ $key ] ) ) {
$counts[ $key ] = 0;
}
}
$counts = (object) $counts;
return $counts;
}
/**
* 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.
* @param int $http_status HTTP status code, 400 by default.
*/
public function trap_wp_die( $error_code = null, $http_status = 400 ) {
// Determine the filter name; based on the conditionals inside the wp_die function.
if ( wp_is_json_request() ) {
$die_handler = 'wp_die_json_handler';
} elseif ( wp_is_jsonp_request() ) {
$die_handler = 'wp_die_jsonp_handler';
} elseif ( wp_is_xml_request() ) {
$die_handler = 'wp_die_xml_handler';
} else {
$die_handler = 'wp_die_handler';
}
if ( $error_code === null ) {
$this->trapped_error = null;
// Stop trapping.
remove_filter( $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;
}
} elseif ( ! defined( 'XMLRPC_REQUEST' ) || ! XMLRPC_REQUEST ) {
return;
}
$this->trapped_error = array(
'status' => $http_status,
'code' => $error_code,
'message' => '',
);
// Start trapping.
add_filter( $die_handler, array( $this, 'wp_die_handler_callback' ) );
}
/**
* Filter function for `wp_die_handler` and similar filters.
*
* @return callable
*/
public function wp_die_handler_callback() {
return array( $this, 'wp_die_handler' );
}
/**
* Handler for `wp_die` calls.
*
* @param string|WP_Error $message As for `wp_die()`.
* @param string|int $title As for `wp_die()`.
* @param string|array|int $args As for `wp_die()`.
* @return never
*/
public function wp_die_handler( $message, $title = '', $args = array() ) {
// Allow wp_die calls to override HTTP status code...
$args = wp_parse_args(
$args,
array(
'response' => $this->trapped_error['status'],
)
);
// ... unless it's 500
if ( 500 !== (int) $args['response'] ) {
$this->trapped_error['status'] = $args['response'];
}
if ( $title ) {
$message = "$title: $message";
}
$this->trapped_error['message'] = wp_kses( $message, array() );
switch ( $this->trapped_error['code'] ) {
case 'comment_failure':
if ( did_action( 'comment_duplicate_trigger' ) ) {
$this->trapped_error['code'] = 'comment_duplicate';
} elseif ( did_action( 'comment_flood_trigger' ) ) {
$this->trapped_error['code'] = 'comment_flood';
}
break;
}
// We still want to exit so that code execution stops where it should.
// Attach the JSON output to the WordPress shutdown handler.
add_action( 'shutdown', array( $this, 'output_trapped_error' ), 0 );
exit( 0 );
}
/**
* Output the trapped error.
*/
public 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'],
)
);
}
/**
* Finish the request.
*/
public function finish_request() {
if ( function_exists( 'fastcgi_finish_request' ) ) {
return fastcgi_finish_request();
}
}
/**
* Initialize the locale if different from 'en'.
*
* @param string $locale The locale to initialize.
*/
public function init_locale( $locale ) {
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 ( str_contains( $locale, '-' ) ) {
$locale_pieces = explode( '-', $locale );
$new_locale = $locale_pieces[0];
$new_locale .= ( ! empty( $locale_pieces[1] ) ) ? '_' . strtoupper( $locale_pieces[1] ) : '';
} else { // phpcs:ignore Universal.ControlStructures.DisallowLonelyIf.Found
// .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' );
}
}
}
}