org.springframework.security.web.server.DelegatingServerAuthenticationEntryPoint Maven / Gradle / Ivy
/*
* Copyright 2002-2020 the original author or 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 org.springframework.security.web.server;
import java.util.Arrays;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import org.springframework.core.log.LogMessage;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.server.util.matcher.ServerWebExchangeMatcher;
import org.springframework.security.web.server.util.matcher.ServerWebExchangeMatcher.MatchResult;
import org.springframework.util.Assert;
import org.springframework.web.server.ServerWebExchange;
/**
* A {@link ServerAuthenticationEntryPoint} which delegates to multiple
* {@link ServerAuthenticationEntryPoint} based on a {@link ServerWebExchangeMatcher}
*
* @author Rob Winch
* @author Mathieu Ouellet
* @since 5.0
*/
public class DelegatingServerAuthenticationEntryPoint implements ServerAuthenticationEntryPoint {
private static final Log logger = LogFactory.getLog(DelegatingServerAuthenticationEntryPoint.class);
private final List entryPoints;
private ServerAuthenticationEntryPoint defaultEntryPoint = (exchange, ex) -> {
exchange.getResponse().setStatusCode(HttpStatus.UNAUTHORIZED);
return exchange.getResponse().setComplete();
};
public DelegatingServerAuthenticationEntryPoint(DelegateEntry... entryPoints) {
this(Arrays.asList(entryPoints));
}
public DelegatingServerAuthenticationEntryPoint(List entryPoints) {
Assert.notEmpty(entryPoints, "entryPoints cannot be null");
this.entryPoints = entryPoints;
}
@Override
public Mono commence(ServerWebExchange exchange, AuthenticationException ex) {
return Flux.fromIterable(this.entryPoints).filterWhen((entry) -> isMatch(exchange, entry)).next()
.map((entry) -> entry.getEntryPoint())
.doOnNext((entryPoint) -> logger.debug(LogMessage.format("Match found! Executing %s", entryPoint)))
.switchIfEmpty(Mono.just(this.defaultEntryPoint)
.doOnNext((entryPoint) -> logger.debug(LogMessage
.format("No match found. Using default entry point %s", this.defaultEntryPoint))))
.flatMap((entryPoint) -> entryPoint.commence(exchange, ex));
}
private Mono isMatch(ServerWebExchange exchange, DelegateEntry entry) {
ServerWebExchangeMatcher matcher = entry.getMatcher();
logger.debug(LogMessage.format("Trying to match using %s", matcher));
return matcher.matches(exchange).map(MatchResult::isMatch);
}
/**
* EntryPoint which is used when no RequestMatcher returned true
*/
public void setDefaultEntryPoint(ServerAuthenticationEntryPoint defaultEntryPoint) {
this.defaultEntryPoint = defaultEntryPoint;
}
public static class DelegateEntry {
private final ServerWebExchangeMatcher matcher;
private final ServerAuthenticationEntryPoint entryPoint;
public DelegateEntry(ServerWebExchangeMatcher matcher, ServerAuthenticationEntryPoint entryPoint) {
this.matcher = matcher;
this.entryPoint = entryPoint;
}
public ServerWebExchangeMatcher getMatcher() {
return this.matcher;
}
public ServerAuthenticationEntryPoint getEntryPoint() {
return this.entryPoint;
}
}
}