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REST API: Return error when JSON decoding fails.

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If you send a request to the REST API with invalid JSON in body than it will now return a error. This assists developers if they accidentally send invalid JSON and wonder why their data appears to be ignored.

Props rmccue.
Fixes #38547.

Built from https://develop.svn.wordpress.org/trunk@39109


git-svn-id: http://core.svn.wordpress.org/trunk@39051 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Joe Hoyle 2016-11-03 04:05:36 +00:00
parent 8c9f4f812a
commit 6b08485cfa
2 changed files with 21 additions and 4 deletions
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23
wp-includes/rest-api/class-wp-rest-request.php
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@ -651,11 +651,13 @@ class WP_REST_Request implements ArrayAccess {
* 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;
return true;
}
$this->parsed_json = true;
@ -664,7 +666,7 @@ class WP_REST_Request implements ArrayAccess {
$content_type = $this->get_content_type();
if ( empty( $content_type ) || 'application/json' !== $content_type['value'] ) {
return;
return true;
}
$params = json_decode( $this->get_body(), true );
@ -676,10 +678,19 @@ class WP_REST_Request implements ArrayAccess {
* 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() ) ) {
return;
// Ensure subsequent calls receive error instance.
$this->parsed_json = false;
$error_data = array(
'status' => WP_Http::BAD_REQUEST,
'json_error_code' => json_last_error(),
'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;
}
/**
@ -841,6 +852,12 @@ class WP_REST_Request implements ArrayAccess {
* 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();

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.7-beta1-39108';
$wp_version = '4.7-beta1-39109';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.