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Signed-off-by: Peter Nied <[email protected]>
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modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4Authorizer.java
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| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.http.netty4; | ||
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| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
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| import io.netty.channel.ChannelHandler; | ||
| import io.netty.channel.ChannelHandlerContext; | ||
| import io.netty.channel.ChannelInboundHandlerAdapter; | ||
| import io.netty.channel.ChannelFutureListener; | ||
| import io.netty.handler.codec.http.HttpRequest; | ||
| import io.netty.handler.codec.http.FullHttpResponse; | ||
| import io.netty.handler.codec.http.DefaultFullHttpResponse; | ||
| import io.netty.handler.codec.http.HttpVersion; | ||
| import io.netty.handler.codec.http.HttpResponseStatus; | ||
| import io.netty.util.ReferenceCountUtil; | ||
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| @ChannelHandler.Sharable | ||
| public class Netty4Authorizer extends ChannelInboundHandlerAdapter { | ||
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| final static Logger log = LogManager.getLogger(Netty4Authorizer.class); | ||
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| @Override | ||
| public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { | ||
| if (!(msg instanceof HttpRequest)) { | ||
| ctx.fireChannelRead(msg); | ||
| } | ||
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| HttpRequest request = (HttpRequest) msg; | ||
| if (!isAuthenticated(request)) { | ||
| final FullHttpResponse response = new DefaultFullHttpResponse( | ||
| HttpVersion.HTTP_1_1, | ||
| HttpResponseStatus.UNAUTHORIZED); | ||
| ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE); | ||
| ReferenceCountUtil.release(msg); | ||
| } else { | ||
| // Lets the request pass to the next channel handler | ||
| ctx.fireChannelRead(msg); | ||
| } | ||
| } | ||
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| private boolean isAuthenticated(HttpRequest request) { | ||
| log.info("Checking if request is authenticated:\n" + request); | ||
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| final boolean shouldBlock = request.headers().contains("blockme"); | ||
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| return !shouldBlock; | ||
| } | ||
| } |
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