116 lines
3.6 KiB
PHP
116 lines
3.6 KiB
PHP
<?php
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/**
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* Save generated cloud critical CSS.
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*
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* This endpoint is used by WP.com to push the generated CSS to the boost plugin.
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*/
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namespace Automattic\Jetpack_Boost\REST_API\Endpoints;
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use Automattic\Jetpack_Boost\Lib\Critical_CSS\Critical_CSS_State;
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use Automattic\Jetpack_Boost\Lib\Critical_CSS\Critical_CSS_Storage;
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use Automattic\Jetpack_Boost\REST_API\Contracts\Endpoint;
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use Automattic\Jetpack_Boost\REST_API\Permissions\Signed_With_Blog_Token;
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use WP_REST_Server;
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/**
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* Handler for POST cloud-css/update. Expects the following body params:
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* - success: boolean - False if the whole Critical CSS job failed.
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* - message: string containing an error message if success is false.
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* - providers: Object containing one result for each provider_key:
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*
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* Each provider key contains:
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* - success: boolean - False if this provider key failed.
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* - data: Either a successful CSS block, or a CSS error.
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*
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* Each CSS block looks like:
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* - css: string - containing CSS data.
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*
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* Each CSS error looks like:
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* - urls: Object describing each URL which failed. Keys are URLs.
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*
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* Each URL failure looks like:
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* - message: string - containing an error message.
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* - type: string - machine readable error type.
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* - meta: Object - JSON string compatible object containing extra metadata for consumption in the UI.
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*/
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class Update_Cloud_CSS implements Endpoint {
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public function name() {
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return 'cloud-css/update';
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}
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public function request_methods() {
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return WP_REST_Server::EDITABLE;
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}
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public function response( $request ) {
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$state = new Critical_CSS_State();
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$storage = new Critical_CSS_Storage();
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$params = $request->get_params();
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$providers = empty( $params['providers'] ) || ! is_array( $params['providers'] ) ? array() : $params['providers'];
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$api_successful = array( 'success' => true );
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// If success is false, the whole Cloud CSS generation process failed.
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if ( empty( $params['success'] ) ) {
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if ( empty( $params['message'] ) || ! is_string( $params['message'] ) ) {
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$error = __( 'An unknown error occurred', 'jetpack-boost' );
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} else {
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$error = $params['message'];
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}
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$state->set_error( $error );
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$state->save();
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return $api_successful;
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}
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// Update each provider.
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foreach ( $providers as $provider_key => $result ) {
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if ( ! isset( $result['data'] ) ) {
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return new \WP_Error( 'invalid_data', __( 'Invalid request; missing data element', 'jetpack-boost' ) );
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}
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$data = $result['data'];
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// Success
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if ( ! empty( $result['success'] ) && ! empty( $data['css'] ) && is_string( $data['css'] ) ) {
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$storage->store_css( $provider_key, $data['css'] );
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$state->set_provider_success( $provider_key );
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continue;
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}
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// Failures must have an array of urls.
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if ( empty( $data['urls'] ) || ! is_array( $data['urls'] ) ) {
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return new \WP_Error( 'invalid_data', __( 'Invalid request; missing urls element', 'jetpack-boost' ) );
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}
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$state->set_provider_errors( $provider_key, $this->flatten_url_errors( $data['urls'] ) );
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}
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// Save the state changes.
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$state->save();
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return $api_successful;
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}
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/**
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* Errors arrive from Shield in an associative array with the URL as the key.
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* This function flattens the array into a list of assoc arrays with the URL in each member.
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*/
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private function flatten_url_errors( $errors ) {
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$flat_errors = array();
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foreach ( $errors as $url => $error ) {
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$flat_errors[] = array_merge( array( 'url' => $url ), $error );
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}
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return $flat_errors;
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}
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public function permissions() {
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return array(
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new Signed_With_Blog_Token(),
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);
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}
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}
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