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src/main/java/reactor/ipc/netty/http/server/AccessLogHandler.java
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| @@ -0,0 +1,166 @@ | ||
| /* | ||
| * Copyright (c) 2011-2018 Pivotal Software Inc, All Rights Reserved. | ||
| * | ||
| * 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 | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package reactor.ipc.netty.http.server; | ||
|
|
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| import io.netty.buffer.ByteBuf; | ||
| import io.netty.buffer.ByteBufHolder; | ||
| import io.netty.channel.ChannelDuplexHandler; | ||
| import io.netty.channel.ChannelHandlerContext; | ||
| import io.netty.channel.ChannelPromise; | ||
| import io.netty.channel.socket.SocketChannel; | ||
| import io.netty.handler.codec.http.HttpRequest; | ||
| import io.netty.handler.codec.http.HttpResponse; | ||
| import io.netty.handler.codec.http.HttpResponseStatus; | ||
| import io.netty.handler.codec.http.HttpUtil; | ||
| import io.netty.handler.codec.http.LastHttpContent; | ||
| import reactor.util.Logger; | ||
| import reactor.util.Loggers; | ||
|
|
||
| import java.time.ZonedDateTime; | ||
| import java.time.format.DateTimeFormatter; | ||
| import java.util.Locale; | ||
| import java.util.Objects; | ||
|
|
||
| /** | ||
| * @author Violeta Georgieva | ||
| */ | ||
| final class AccessLogHandler extends ChannelDuplexHandler { | ||
|
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| AccessLog accessLog = new AccessLog(); | ||
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| @Override | ||
| public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { | ||
| if (msg instanceof HttpRequest) { | ||
| final HttpRequest request = (HttpRequest) msg; | ||
|
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| accessLog = new AccessLog() | ||
| .address(((SocketChannel) ctx.channel()).remoteAddress().getHostString()) | ||
| .method(request.method().name()) | ||
| .uri(request.uri()) | ||
| .protocol(request.protocolVersion().text()); | ||
| } | ||
| super.channelRead(ctx, msg); | ||
| } | ||
|
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| @Override | ||
| public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) { | ||
| if (msg instanceof HttpResponse) { | ||
| final HttpResponse response = (HttpResponse) msg; | ||
| HttpResponseStatus status = response.status(); | ||
| if (status.equals(HttpResponseStatus.CONTINUE)) { | ||
| ctx.write(msg, promise); | ||
| return; | ||
| } | ||
| boolean chunked = HttpUtil.isTransferEncodingChunked(response); | ||
| accessLog.status(status.code()) | ||
| .chunked(chunked); | ||
| if (!chunked) { | ||
| accessLog.contentLength(HttpUtil.getContentLength(response, -1)); | ||
| } | ||
| } | ||
| if (msg instanceof LastHttpContent) { | ||
| accessLog.increaseContentLength(((LastHttpContent) msg).content().readableBytes()); | ||
| ctx.write(msg, promise) | ||
| .addListener(future -> { | ||
| if (future.isSuccess()) { | ||
| accessLog.log(); | ||
| } | ||
| }); | ||
| return; | ||
| } | ||
| if (msg instanceof ByteBuf) { | ||
| accessLog.increaseContentLength(((ByteBuf) msg).readableBytes()); | ||
| } | ||
| if (msg instanceof ByteBufHolder) { | ||
| accessLog.increaseContentLength(((ByteBufHolder) msg).content().readableBytes()); | ||
| } | ||
| ctx.write(msg, promise); | ||
| } | ||
|
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| static final class AccessLog { | ||
| static final Logger log = Loggers.getLogger("reactor.netty.http.server.AccessLog"); | ||
| static final DateTimeFormatter DATE_TIME_FORMATTER = | ||
| DateTimeFormatter.ofPattern("dd/MMM/yyyy:HH:mm:ss Z", Locale.US); | ||
| static final String COMMON_LOG_FORMAT = | ||
| "{} - {} [{}] \"{} {} {}\" {} {}"; | ||
| static final String MISSING = "-"; | ||
|
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| final String zonedDateTime; | ||
|
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| String address; | ||
| String method; | ||
| String uri; | ||
| String protocol; | ||
| String user = MISSING; | ||
| int status; | ||
| long contentLength; | ||
| boolean chunked; | ||
|
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| AccessLog() { | ||
| this.zonedDateTime = ZonedDateTime.now().format(DATE_TIME_FORMATTER); | ||
| } | ||
|
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| AccessLog address(String address) { | ||
| this.address = Objects.requireNonNull(address, "address"); | ||
| return this; | ||
| } | ||
|
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| AccessLog method(String method) { | ||
| this.method = Objects.requireNonNull(method, "method"); | ||
| return this; | ||
| } | ||
|
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| AccessLog uri(String uri) { | ||
| this.uri = Objects.requireNonNull(uri, "uri"); | ||
| return this; | ||
| } | ||
|
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| AccessLog protocol(String protocol) { | ||
| this.protocol = Objects.requireNonNull(protocol, "protocol"); | ||
| return this; | ||
| } | ||
|
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| AccessLog status(int status) { | ||
| this.status = status; | ||
| return this; | ||
| } | ||
|
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| AccessLog contentLength(long contentLength) { | ||
| this.contentLength = contentLength; | ||
| return this; | ||
| } | ||
|
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| AccessLog increaseContentLength(long contentLength) { | ||
| if (chunked) { | ||
| this.contentLength += contentLength; | ||
| } | ||
| return this; | ||
| } | ||
|
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| AccessLog chunked(boolean chunked) { | ||
| this.chunked = chunked; | ||
| return this; | ||
| } | ||
|
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| void log() { | ||
| if (log.isInfoEnabled()) { | ||
| log.info(COMMON_LOG_FORMAT, address, user, zonedDateTime, | ||
| method, uri, protocol, status, (contentLength > -1 ? contentLength : MISSING)); | ||
| } | ||
| } | ||
| } | ||
| } |
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