681d460938
Motivation: We have quite a bit of code duplication between HTTP/1, HTTP/2, SPDY, and STOMP codec, because they all have a notion of 'headers', which is a multimap of string names and values. Modifications: - Add TextHeaders and its default implementation - Add AsciiString to replace HttpHeaderEntity - Borrowed some portion from Apache Harmony's java.lang.String. - Reimplement HttpHeaders, SpdyHeaders, and StompHeaders using TextHeaders - Add AsciiHeadersEncoder to reuse the encoding a TextHeaders - Used a dedicated encoder for HTTP headers for better performance though - Remove shortcut methods in SpdyHeaders - Replace SpdyHeaders.getStatus() with HttpResponseStatus.parseLine() Result: - Removed quite a bit of code duplication in the header implementations. - Slightly better performance thanks to improved header validation and hash code calculation
126 lines
3.9 KiB
Java
126 lines
3.9 KiB
Java
/*
|
|
* Copyright 2012 The Netty Project
|
|
*
|
|
* The Netty Project licenses this file to you 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:
|
|
*
|
|
* http://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.netty.handler.codec.http;
|
|
|
|
import io.netty.buffer.ByteBuf;
|
|
import io.netty.buffer.Unpooled;
|
|
import io.netty.handler.codec.http.DefaultHttpHeaders.NonValidatingTextHeaders;
|
|
import io.netty.handler.codec.http.DefaultHttpHeaders.ValidatingTextHeaders;
|
|
import io.netty.util.internal.StringUtil;
|
|
|
|
import java.util.Map;
|
|
|
|
/**
|
|
* The default {@link LastHttpContent} implementation.
|
|
*/
|
|
public class DefaultLastHttpContent extends DefaultHttpContent implements LastHttpContent {
|
|
|
|
private final HttpHeaders trailingHeaders;
|
|
private final boolean validateHeaders;
|
|
|
|
public DefaultLastHttpContent() {
|
|
this(Unpooled.buffer(0));
|
|
}
|
|
|
|
public DefaultLastHttpContent(ByteBuf content) {
|
|
this(content, true);
|
|
}
|
|
|
|
public DefaultLastHttpContent(ByteBuf content, boolean validateHeaders) {
|
|
super(content);
|
|
trailingHeaders = new DefaultHttpHeaders(
|
|
validateHeaders? new ValidatingTrailingTextHeaders() : new NonValidatingTextHeaders());
|
|
this.validateHeaders = validateHeaders;
|
|
}
|
|
|
|
@Override
|
|
public LastHttpContent copy() {
|
|
DefaultLastHttpContent copy = new DefaultLastHttpContent(content().copy(), validateHeaders);
|
|
copy.trailingHeaders().set(trailingHeaders());
|
|
return copy;
|
|
}
|
|
|
|
@Override
|
|
public LastHttpContent duplicate() {
|
|
DefaultLastHttpContent copy = new DefaultLastHttpContent(content().duplicate(), validateHeaders);
|
|
copy.trailingHeaders().set(trailingHeaders());
|
|
return copy;
|
|
}
|
|
|
|
@Override
|
|
public LastHttpContent retain(int increment) {
|
|
super.retain(increment);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public LastHttpContent retain() {
|
|
super.retain();
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public LastHttpContent touch() {
|
|
super.touch();
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public LastHttpContent touch(Object hint) {
|
|
super.touch(hint);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public HttpHeaders trailingHeaders() {
|
|
return trailingHeaders;
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
StringBuilder buf = new StringBuilder(super.toString());
|
|
buf.append(StringUtil.NEWLINE);
|
|
appendHeaders(buf);
|
|
|
|
// Remove the last newline.
|
|
buf.setLength(buf.length() - StringUtil.NEWLINE.length());
|
|
return buf.toString();
|
|
}
|
|
|
|
private void appendHeaders(StringBuilder buf) {
|
|
for (Map.Entry<String, String> e: trailingHeaders()) {
|
|
buf.append(e.getKey());
|
|
buf.append(": ");
|
|
buf.append(e.getValue());
|
|
buf.append(StringUtil.NEWLINE);
|
|
}
|
|
}
|
|
|
|
private static final class ValidatingTrailingTextHeaders extends ValidatingTextHeaders {
|
|
@Override
|
|
protected CharSequence convertName(CharSequence name) {
|
|
name = super.convertName(name);
|
|
if (HttpHeaders.equalsIgnoreCase(HttpHeaders.Names.CONTENT_LENGTH, name) ||
|
|
HttpHeaders.equalsIgnoreCase(HttpHeaders.Names.TRANSFER_ENCODING, name) ||
|
|
HttpHeaders.equalsIgnoreCase(HttpHeaders.Names.TRAILER, name)) {
|
|
throw new IllegalArgumentException(
|
|
"prohibited trailing header: " + name);
|
|
}
|
|
return name;
|
|
}
|
|
}
|
|
}
|