/*
* Copyright 2017-2020 original authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.micronaut.http.server.cors;
import static io.micronaut.http.HttpHeaders.ACCESS_CONTROL_REQUEST_METHOD;
import io.micronaut.http.HttpHeaders;
import io.micronaut.http.HttpMethod;
import io.micronaut.http.HttpRequest;
import java.util.Optional;
Utility methods for CORS.
Author: Graeme Rocher Since: 1.0
/**
* Utility methods for CORS.
*
* @author Graeme Rocher
* @since 1.0
*/
class CorsUtil {
Params: - request – The
HttpRequest
object
Returns: Return whether this request is a pre-flight request
/**
* @param request The {@link HttpRequest} object
* @return Return whether this request is a pre-flight request
*/
static boolean isPreflightRequest(HttpRequest request) {
HttpHeaders headers = request.getHeaders();
Optional<String> origin = headers.getOrigin();
return origin.isPresent() && headers.contains(ACCESS_CONTROL_REQUEST_METHOD) && HttpMethod.OPTIONS == request.getMethod();
}
}