org.smartboot.http.client.decode.HttpHeaderDecoder Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2017-2021, org.smartboot. All rights reserved.
* project name: smart-http
* file name: HttpHeaderDecoder.java
* Date: 2021-07-15
* Author: sandao ([email protected])
******************************************************************************/
package org.smartboot.http.client.decode;
import org.smartboot.http.client.AbstractResponse;
import org.smartboot.http.common.enums.HttpStatus;
import org.smartboot.http.common.exception.HttpException;
import org.smartboot.http.common.utils.Constant;
import org.smartboot.http.common.utils.StringUtils;
import org.smartboot.socket.transport.AioSession;
import java.nio.ByteBuffer;
/**
* @author 三刀
* @version V1.0 , 2020/3/30
*/
class HttpHeaderDecoder implements HeaderDecoder {
private final HeaderValueDecoder headerValueDecoder = new HeaderValueDecoder();
@Override
public HeaderDecoder decode(ByteBuffer byteBuffer, AioSession aioSession, AbstractResponse request) {
if (byteBuffer.remaining() < 2) {
return this;
}
//header解码结束
if (byteBuffer.get(byteBuffer.position()) == Constant.CR) {
if (byteBuffer.get(byteBuffer.position() + 1) != Constant.LF) {
throw new HttpException(HttpStatus.BAD_REQUEST);
}
byteBuffer.position(byteBuffer.position() + 2);
// return decoder.decode(byteBuffer, aioSession, request);
return HeaderDecoder.BODY_READY_DECODER;
}
//Header name解码
int length = StringUtils.scanUntilAndTrim(byteBuffer, Constant.COLON);
if (length < 0) {
return this;
}
String name = StringUtils.convertToString(byteBuffer, byteBuffer.position() - length - 1, length, StringUtils.String_CACHE_HEADER_NAME);
request.setHeaderTemp(name);
return headerValueDecoder.decode(byteBuffer, aioSession, request);
}
/**
* Value值解码
*/
class HeaderValueDecoder implements HeaderDecoder {
@Override
public HeaderDecoder decode(ByteBuffer byteBuffer, AioSession aioSession, AbstractResponse request) {
int length = StringUtils.scanUntilAndTrim(byteBuffer, Constant.LF);
if (length == -1) {
return this;
}
request.setHeadValue(StringUtils.convertToString(byteBuffer, byteBuffer.position() - 1 - length, length - 1));
return HttpHeaderDecoder.this.decode(byteBuffer, aioSession, request);
}
}
}