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✏️ Editing: class.wpcom-json-api-update-customcss.php

<?php
/**
 * Custom Css update endpoint
 *
 * https://public-api.wordpress.com/rest/v1.1/sites/$site/customcss/
 */

new WPCOM_JSON_API_Update_CustomCss_Endpoint( array (
	'description'      => 'Set custom-css data for a site.',
	'group'            => '__do_not_document',
	'stat'             => 'customcss:1:update',
	'method'           => 'POST',
	'min_version'      => '1.1',
	'path'             => '/sites/%s/customcss',
	'path_labels'      => array(
		'$site' => '(string) Site ID or domain.',
	),
	'request_format'  => array(
		'css' => '(string) Optional. The raw CSS.',
		'preprocessor' => '(string) Optional. The name of the preprocessor if any.',
		'add_to_existing' => '(bool) Optional. False to skip the existing styles.',
	),
	'response_format'  => array(
		'css' => '(string) The raw CSS.',
		'preprocessor' => '(string) The name of the preprocessor if any.',
		'add_to_existing' => '(bool) False to skip the existing styles.',
	),
	'example_request'  => 'https://public-api.wordpress.com/rest/v1.1/sites/12345678/customcss',
	'example_request_data' => array(
		'headers' => array( 'authorization' => 'Bearer YOUR_API_TOKEN' ),
		'body' => array(
			'css' => '.stie-title { color: #fff; }',
			'preprocessor' => 'sass'
		),
	),
	'example_response' => '
	{
		"css": ".site-title { color: #fff; }",
		"preprocessor": "sass",
		"add_to_existing": "true"
	}'
) );

class WPCOM_JSON_API_Update_CustomCss_Endpoint extends WPCOM_JSON_API_Endpoint {
	/**
	 * API callback.
	 */
	function callback( $path = '', $blog_id = 0 ) {
		// Switch to the given blog.
		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
		if ( is_wp_error( $blog_id ) ) {
			return $blog_id;
		}

if ( ! current_user_can( 'edit_theme_options' ) ) {
			return new WP_Error( 'unauthorized', 'User is not authorized to access custom css', 403 );
		}

$args = $this->input();
		if ( empty( $args ) || ! is_array( $args ) ) {
			return new WP_Error( 'no_data', 'No data was provided.', 400 );
		}
		$save_args = array(
			'css' => $args['css'],
			'preprocessor' => $args['preprocessor'],
			'add_to_existing' => $args['add_to_existing'],
		);
		Jetpack_Custom_CSS::save( $save_args );

$current = array(
			'css' => Jetpack_Custom_CSS::get_css(),
			'preprocessor' => Jetpack_Custom_CSS::get_preprocessor_key(),
			'add_to_existing' => ! Jetpack_Custom_CSS::skip_stylesheet(),
		);

$defaults = array(
			'css' => '',
			'preprocessor' => '',
			'add_to_existing' => true,
		);
		return wp_parse_args( $current, $defaults );
	}
}

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