spring security BasicAuthenticationPayloadExchangeConverter 源码
spring security BasicAuthenticationPayloadExchangeConverter 代码
文件路径：/rsocket/src/main/java/org/springframework/security/rsocket/authentication/BasicAuthenticationPayloadExchangeConverter.java
/*
* Copyright 2019-2022 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.rsocket.authentication;
import io.rsocket.metadata.WellKnownMimeType;
import reactor.core.publisher.Mono;
import org.springframework.messaging.rsocket.DefaultMetadataExtractor;
import org.springframework.messaging.rsocket.MetadataExtractor;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.rsocket.api.PayloadExchange;
import org.springframework.security.rsocket.metadata.BasicAuthenticationDecoder;
import org.springframework.security.rsocket.metadata.UsernamePasswordMetadata;
import org.springframework.util.MimeType;
import org.springframework.util.MimeTypeUtils;
/**
* Converts from the {@link PayloadExchange} to a
* {@link UsernamePasswordAuthenticationToken} by extracting
* {@link UsernamePasswordMetadata#BASIC_AUTHENTICATION_MIME_TYPE} from the metadata.
*
* @author Rob Winch
* @since 5.2
*/
public class BasicAuthenticationPayloadExchangeConverter implements PayloadExchangeAuthenticationConverter {
private MimeType metadataMimetype = MimeTypeUtils
.parseMimeType(WellKnownMimeType.MESSAGE_RSOCKET_COMPOSITE_METADATA.getString());
private MetadataExtractor metadataExtractor = createDefaultExtractor();
@Override
public Mono<Authentication> convert(PayloadExchange exchange) {
return Mono.fromCallable(() -> this.metadataExtractor.extract(exchange.getPayload(), this.metadataMimetype))
.flatMap((metadata) -> Mono
.justOrEmpty(metadata.get(UsernamePasswordMetadata.BASIC_AUTHENTICATION_MIME_TYPE.toString())))
.cast(UsernamePasswordMetadata.class).map((credentials) -> UsernamePasswordAuthenticationToken
.unauthenticated(credentials.getUsername(), credentials.getPassword()));
}
private static MetadataExtractor createDefaultExtractor() {
DefaultMetadataExtractor result = new DefaultMetadataExtractor(new BasicAuthenticationDecoder());
result.metadataToExtract(UsernamePasswordMetadata.BASIC_AUTHENTICATION_MIME_TYPE,
UsernamePasswordMetadata.class, (String) null);
return result;
}
}
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