spring security BasicAuthenticationEncoder 源码
spring security BasicAuthenticationEncoder 代码
文件路径：/rsocket/src/main/java/org/springframework/security/rsocket/metadata/BasicAuthenticationEncoder.java
/*
* Copyright 2019 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.metadata;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import org.springframework.core.ResolvableType;
import org.springframework.core.codec.AbstractEncoder;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.DataBufferUtils;
import org.springframework.util.MimeType;
/**
* Encodes {@link UsernamePasswordMetadata#BASIC_AUTHENTICATION_MIME_TYPE}
*
* @author Rob Winch
* @since 5.2
* @deprecated Basic Authentication did not evolve into a standard. use
* {@link SimpleAuthenticationEncoder}
*/
@Deprecated
public class BasicAuthenticationEncoder extends AbstractEncoder<UsernamePasswordMetadata> {
public BasicAuthenticationEncoder() {
super(UsernamePasswordMetadata.BASIC_AUTHENTICATION_MIME_TYPE);
}
@Override
public Flux<DataBuffer> encode(Publisher<? extends UsernamePasswordMetadata> inputStream,
DataBufferFactory bufferFactory, ResolvableType elementType, MimeType mimeType, Map<String, Object> hints) {
return Flux.from(inputStream)
.map((credentials) -> encodeValue(credentials, bufferFactory, elementType, mimeType, hints));
}
@Override
public DataBuffer encodeValue(UsernamePasswordMetadata credentials, DataBufferFactory bufferFactory,
ResolvableType valueType, MimeType mimeType, Map<String, Object> hints) {
String username = credentials.getUsername();
String password = credentials.getPassword();
byte[] usernameBytes = username.getBytes(StandardCharsets.UTF_8);
byte[] usernameBytesLengthBytes = ByteBuffer.allocate(4).putInt(usernameBytes.length).array();
DataBuffer metadata = bufferFactory.allocateBuffer();
boolean release = true;
try {
metadata.write(usernameBytesLengthBytes);
metadata.write(usernameBytes);
metadata.write(password.getBytes(StandardCharsets.UTF_8));
release = false;
return metadata;
}
finally {
if (release) {
DataBufferUtils.release(metadata);
}
}
}
}
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