diff --git a/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClient.java b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClient.java new file mode 100644 index 0000000..ed30827 --- /dev/null +++ b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClient.java @@ -0,0 +1,904 @@ +/* + * Copyright 2021 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: + * + * 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 io.netty.buffer.api.examples.http.upload; + +import io.netty.bootstrap.Bootstrap; +import io.netty.buffer.api.adaptor.ByteBufAllocatorAdaptor; +import io.netty.channel.Channel; +import io.netty.channel.ChannelFuture; +import io.netty.channel.ChannelOption; +import io.netty.channel.EventLoopGroup; +import io.netty.channel.MultithreadEventLoopGroup; +import io.netty.channel.nio.NioHandler; +import io.netty.channel.socket.nio.NioSocketChannel; +import io.netty.handler.codec.http.DefaultHttpRequest; +import io.netty.handler.codec.http.HttpHeaderNames; +import io.netty.handler.codec.http.HttpHeaderValues; +import io.netty.handler.codec.http.HttpHeaders; +import io.netty.handler.codec.http.HttpMethod; +import io.netty.handler.codec.http.HttpRequest; +import io.netty.handler.codec.http.HttpVersion; +import io.netty.handler.codec.http.QueryStringEncoder; +import io.netty.handler.codec.http.cookie.ClientCookieEncoder; +import io.netty.handler.codec.http.cookie.DefaultCookie; +import io.netty.handler.codec.http.multipart.DefaultHttpDataFactory; +import io.netty.handler.codec.http.multipart.DiskAttribute; +import io.netty.handler.codec.http.multipart.DiskFileUpload; +import io.netty.handler.codec.http.multipart.HttpDataFactory; +import io.netty.handler.codec.http.multipart.HttpPostRequestEncoder; +import io.netty.handler.codec.http.multipart.InterfaceHttpData; +import io.netty.handler.ssl.SslContext; +import io.netty.handler.ssl.SslContextBuilder; +import io.netty.handler.ssl.util.InsecureTrustManagerFactory; +import io.netty.util.internal.SocketUtils; + +import java.io.File; +import java.io.FileNotFoundException; +import java.net.URI; +import java.util.List; +import java.util.Map.Entry; + +/** + * This class is meant to be run against {@link HttpUploadServer}. + */ +public final class HttpUploadClient { + + static final String BASE_URL = System.getProperty("baseUrl", "http://127.0.0.1:8080/"); + static final String FILE = System.getProperty("file", "README.adoc"); + + public static void main(String[] args) throws Exception { + String postSimple, postFile, get; + if (BASE_URL.endsWith("/")) { + postSimple = BASE_URL + "formpost"; + postFile = BASE_URL + "formpostmultipart"; + get = BASE_URL + "formget"; + } else { + postSimple = BASE_URL + "/formpost"; + postFile = BASE_URL + "/formpostmultipart"; + get = BASE_URL + "/formget"; + } + + URI uriSimple = new URI(postSimple); + String scheme = uriSimple.getScheme() == null? "http" : uriSimple.getScheme(); + String host = uriSimple.getHost() == null? "127.0.0.1" : uriSimple.getHost(); + int port = uriSimple.getPort(); + if (port == -1) { + if ("http".equalsIgnoreCase(scheme)) { + port = 80; + } else if ("https".equalsIgnoreCase(scheme)) { + port = 443; + } + } + + if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)) { + System.err.println("Only HTTP(S) is supported."); + return; + } + + final boolean ssl = "https".equalsIgnoreCase(scheme); + final SslContext sslCtx; + if (ssl) { + sslCtx = SslContextBuilder.forClient() + .trustManager(InsecureTrustManagerFactory.INSTANCE).build(); + } else { + sslCtx = null; + } + + URI uriFile = new URI(postFile); + File file = new File(FILE); + if (!file.canRead()) { + throw new FileNotFoundException(FILE); + } + + // Configure the client. + ByteBufAllocatorAdaptor allocator = new ByteBufAllocatorAdaptor(); + EventLoopGroup group = new MultithreadEventLoopGroup(NioHandler.newFactory()); + + // setup the factory: here using a mixed memory/disk based on size threshold + HttpDataFactory factory = new DefaultHttpDataFactory(DefaultHttpDataFactory.MINSIZE); // Disk if MINSIZE exceed + + DiskFileUpload.deleteOnExitTemporaryFile = true; // should delete file on exit (in normal exit) + DiskFileUpload.baseDirectory = null; // system temp directory + DiskAttribute.deleteOnExitTemporaryFile = true; // should delete file on exit (in normal exit) + DiskAttribute.baseDirectory = null; // system temp directory + + try { + Bootstrap b = new Bootstrap(); + b.group(group).channel(NioSocketChannel.class) + .option(ChannelOption.ALLOCATOR, allocator) + .handler(new HttpUploadClientInitializer(sslCtx)); + + // Simple Get form: no factory used (not usable) + List> headers = formget(b, host, port, get, uriSimple); + if (headers == null) { + factory.cleanAllHttpData(); + return; + } + + // Simple Post form: factory used for big attributes + List bodylist = formpost(b, host, port, uriSimple, file, factory, headers); + if (bodylist == null) { + factory.cleanAllHttpData(); + return; + } + + // Multipart Post form: factory used + formpostmultipart(b, host, port, uriFile, factory, headers, bodylist); + } finally { + // Shut down executor threads to exit. + group.shutdownGracefully(); + + // Really clean all temporary files if they still exist + factory.cleanAllHttpData(); + } + } + + /** + * Standard usage of HTTP API in Netty without file Upload (get is not able to achieve File upload + * due to limitation on request size). + * + * @return the list of headers that will be used in every example after + **/ + private static List> formget( + Bootstrap bootstrap, String host, int port, String get, URI uriSimple) throws Exception { + // XXX /formget + // No use of HttpPostRequestEncoder since not a POST + Channel channel = bootstrap.connect(host, port).sync().channel(); + + // Prepare the HTTP request. + QueryStringEncoder encoder = new QueryStringEncoder(get); + // add Form attribute + encoder.addParam("getform", "GET"); + encoder.addParam("info", "first value"); + encoder.addParam("secondinfo", "secondvalue ���&"); + // not the big one since it is not compatible with GET size + // encoder.addParam("thirdinfo", textArea); + encoder.addParam("thirdinfo", "third value\r\ntest second line\r\n\r\nnew line\r\n"); + encoder.addParam("Send", "Send"); + + URI uriGet = new URI(encoder.toString()); + HttpRequest request = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, uriGet.toASCIIString()); + HttpHeaders headers = request.headers(); + headers.set(HttpHeaderNames.HOST, host); + headers.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE); + headers.set(HttpHeaderNames.ACCEPT_ENCODING, HttpHeaderValues.GZIP + "," + HttpHeaderValues.DEFLATE); + + headers.set(HttpHeaderNames.ACCEPT_CHARSET, "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); + headers.set(HttpHeaderNames.ACCEPT_LANGUAGE, "fr"); + headers.set(HttpHeaderNames.REFERER, uriSimple.toString()); + headers.set(HttpHeaderNames.USER_AGENT, "Netty Simple Http Client side"); + headers.set(HttpHeaderNames.ACCEPT, "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); + + //connection will not close but needed + // headers.set("Connection","keep-alive"); + // headers.set("Keep-Alive","300"); + + headers.set( + HttpHeaderNames.COOKIE, ClientCookieEncoder.STRICT.encode( + new DefaultCookie("my-cookie", "foo"), + new DefaultCookie("another-cookie", "bar")) + ); + + // send request + channel.writeAndFlush(request); + + // Wait for the server to close the connection. + channel.closeFuture().sync(); + + // convert headers to list + return headers.entries(); + } + + /** + * Standard post without multipart but already support on Factory (memory management) + * + * @return the list of HttpData object (attribute and file) to be reused on next post + */ + private static List formpost( + Bootstrap bootstrap, + String host, int port, URI uriSimple, File file, HttpDataFactory factory, + List> headers) throws Exception { + // XXX /formpost + // Start the connection attempt. + ChannelFuture future = bootstrap.connect(SocketUtils.socketAddress(host, port)); + // Wait until the connection attempt succeeds or fails. + Channel channel = future.sync().channel(); + + // Prepare the HTTP request. + HttpRequest request = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST, uriSimple.toASCIIString()); + + // Use the PostBody encoder + HttpPostRequestEncoder bodyRequestEncoder = + new HttpPostRequestEncoder(factory, request, false); // false => not multipart + + // it is legal to add directly header or cookie into the request until finalize + for (Entry entry : headers) { + request.headers().set(entry.getKey(), entry.getValue()); + } + + // add Form attribute + bodyRequestEncoder.addBodyAttribute("getform", "POST"); + bodyRequestEncoder.addBodyAttribute("info", "first value"); + bodyRequestEncoder.addBodyAttribute("secondinfo", "secondvalue ���&"); + bodyRequestEncoder.addBodyAttribute("thirdinfo", textArea); + bodyRequestEncoder.addBodyAttribute("fourthinfo", textAreaLong); + bodyRequestEncoder.addBodyFileUpload("myfile", file, "application/x-zip-compressed", false); + + // finalize request + request = bodyRequestEncoder.finalizeRequest(); + + // Create the bodylist to be reused on the last version with Multipart support + List bodylist = bodyRequestEncoder.getBodyListAttributes(); + + // send request + channel.write(request); + + // test if request was chunked and if so, finish the write + if (bodyRequestEncoder.isChunked()) { // could do either request.isChunked() + // either do it through ChunkedWriteHandler + channel.write(bodyRequestEncoder); + } + channel.flush(); + + // Do not clear here since we will reuse the InterfaceHttpData on the next request + // for the example (limit action on client side). Take this as a broadcast of the same + // request on both Post actions. + // + // On standard program, it is clearly recommended to clean all files after each request + // bodyRequestEncoder.cleanFiles(); + + // Wait for the server to close the connection. + channel.closeFuture().sync(); + return bodylist; + } + + /** + * Multipart example + */ + private static void formpostmultipart( + Bootstrap bootstrap, String host, int port, URI uriFile, HttpDataFactory factory, + Iterable> headers, List bodylist) throws Exception { + // XXX /formpostmultipart + // Start the connection attempt. + ChannelFuture future = bootstrap.connect(SocketUtils.socketAddress(host, port)); + // Wait until the connection attempt succeeds or fails. + Channel channel = future.sync().channel(); + + // Prepare the HTTP request. + HttpRequest request = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST, uriFile.toASCIIString()); + + // Use the PostBody encoder + HttpPostRequestEncoder bodyRequestEncoder = + new HttpPostRequestEncoder(factory, request, true); // true => multipart + + // it is legal to add directly header or cookie into the request until finalize + for (Entry entry : headers) { + request.headers().set(entry.getKey(), entry.getValue()); + } + + // add Form attribute from previous request in formpost() + bodyRequestEncoder.setBodyHttpDatas(bodylist); + + // finalize request + bodyRequestEncoder.finalizeRequest(); + + // send request + channel.write(request); + + // test if request was chunked and if so, finish the write + if (bodyRequestEncoder.isChunked()) { + channel.write(bodyRequestEncoder); + } + channel.flush(); + + // Now no more use of file representation (and list of HttpData) + bodyRequestEncoder.cleanFiles(); + + // Wait for the server to close the connection. + channel.closeFuture().sync(); + } + + // use to simulate a small TEXTAREA field in a form + private static final String textArea = "short text"; + // use to simulate a big TEXTAREA field in a form + private static final String textAreaLong = + "lkjlkjlKJLKJLKJLKJLJlkj lklkj\r\n\r\nLKJJJJJJJJKKKKKKKKKKKKKKK ����&\r\n\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + 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"MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n" + + "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM\r\n"; +} diff --git a/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClientHandler.java b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClientHandler.java new file mode 100644 index 0000000..c959324 --- /dev/null +++ b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClientHandler.java @@ -0,0 +1,79 @@ +/* + * Copyright 2021 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: + * + * 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 io.netty.buffer.api.examples.http.upload; + +import io.netty.channel.ChannelHandlerContext; +import io.netty.channel.SimpleChannelInboundHandler; +import io.netty.handler.codec.http.HttpContent; +import io.netty.handler.codec.http.HttpObject; +import io.netty.handler.codec.http.HttpResponse; +import io.netty.handler.codec.http.HttpUtil; +import io.netty.handler.codec.http.LastHttpContent; +import io.netty.util.CharsetUtil; + +/** + * Handler that just dumps the contents of the response from the server + */ +public class HttpUploadClientHandler extends SimpleChannelInboundHandler { + + private boolean readingChunks; + + @Override + public void messageReceived(ChannelHandlerContext ctx, HttpObject msg) { + if (msg instanceof HttpResponse) { + HttpResponse response = (HttpResponse) msg; + + System.err.println("STATUS: " + response.status()); + System.err.println("VERSION: " + response.protocolVersion()); + + if (!response.headers().isEmpty()) { + for (CharSequence name : response.headers().names()) { + for (CharSequence value : response.headers().getAll(name)) { + System.err.println("HEADER: " + name + " = " + value); + } + } + } + + if (response.status().code() == 200 && HttpUtil.isTransferEncodingChunked(response)) { + readingChunks = true; + System.err.println("CHUNKED CONTENT {"); + } else { + System.err.println("CONTENT {"); + } + } + if (msg instanceof HttpContent) { + HttpContent chunk = (HttpContent) msg; + System.err.println(chunk.content().toString(CharsetUtil.UTF_8)); + + if (chunk instanceof LastHttpContent) { + if (readingChunks) { + System.err.println("} END OF CHUNKED CONTENT"); + } else { + System.err.println("} END OF CONTENT"); + } + readingChunks = false; + } else { + System.err.println(chunk.content().toString(CharsetUtil.UTF_8)); + } + } + } + + @Override + public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { + cause.printStackTrace(); + ctx.channel().close(); + } +} diff --git a/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClientInitializer.java b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClientInitializer.java new file mode 100644 index 0000000..a054db4 --- /dev/null +++ b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadClientInitializer.java @@ -0,0 +1,52 @@ +/* + * Copyright 2021 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: + * + * 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 io.netty.buffer.api.examples.http.upload; + +import io.netty.channel.ChannelInitializer; +import io.netty.channel.ChannelPipeline; +import io.netty.channel.socket.SocketChannel; +import io.netty.handler.codec.http.HttpClientCodec; +import io.netty.handler.codec.http.HttpContentDecompressor; +import io.netty.handler.ssl.SslContext; +import io.netty.handler.stream.ChunkedWriteHandler; + +public class HttpUploadClientInitializer extends ChannelInitializer { + + private final SslContext sslCtx; + + public HttpUploadClientInitializer(SslContext sslCtx) { + this.sslCtx = sslCtx; + } + + @Override + public void initChannel(SocketChannel ch) { + ChannelPipeline pipeline = ch.pipeline(); + + if (sslCtx != null) { + pipeline.addLast("ssl", sslCtx.newHandler(ch.alloc())); + } + + pipeline.addLast("codec", new HttpClientCodec()); + + // Remove the following line if you don't want automatic content decompression. + pipeline.addLast("inflater", new HttpContentDecompressor()); + + // to be used since huge file transfer + pipeline.addLast("chunkedWriter", new ChunkedWriteHandler()); + + pipeline.addLast("handler", new HttpUploadClientHandler()); + } +} diff --git a/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServer.java b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServer.java new file mode 100644 index 0000000..ebe3d13 --- /dev/null +++ b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServer.java @@ -0,0 +1,72 @@ +/* + * Copyright 2021 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: + * + * 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 io.netty.buffer.api.examples.http.upload; + +import io.netty.bootstrap.ServerBootstrap; +import io.netty.buffer.api.adaptor.ByteBufAllocatorAdaptor; +import io.netty.channel.Channel; +import io.netty.channel.ChannelOption; +import io.netty.channel.EventLoopGroup; +import io.netty.channel.MultithreadEventLoopGroup; +import io.netty.channel.nio.NioHandler; +import io.netty.channel.socket.nio.NioServerSocketChannel; +import io.netty.handler.logging.LogLevel; +import io.netty.handler.logging.LoggingHandler; +import io.netty.handler.ssl.SslContext; +import io.netty.handler.ssl.SslContextBuilder; +import io.netty.handler.ssl.util.SelfSignedCertificate; + +/** + * An HTTP server showing how to use the HTTP multipart package for file uploads and decoding post data. + */ +public final class HttpUploadServer { + + static final boolean SSL = System.getProperty("ssl") != null; + static final int PORT = Integer.parseInt(System.getProperty("port", SSL? "8443" : "8080")); + + public static void main(String[] args) throws Exception { + // Configure SSL. + final SslContext sslCtx; + if (SSL) { + SelfSignedCertificate ssc = new SelfSignedCertificate(); + sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build(); + } else { + sslCtx = null; + } + + ByteBufAllocatorAdaptor allocator = new ByteBufAllocatorAdaptor(); + EventLoopGroup bossGroup = new MultithreadEventLoopGroup(1, NioHandler.newFactory()); + EventLoopGroup workerGroup = new MultithreadEventLoopGroup(NioHandler.newFactory()); + try { + ServerBootstrap b = new ServerBootstrap(); + b.group(bossGroup, workerGroup); + b.channel(NioServerSocketChannel.class); + b.childOption(ChannelOption.ALLOCATOR, allocator); + b.handler(new LoggingHandler(LogLevel.INFO)); + b.childHandler(new HttpUploadServerInitializer(sslCtx)); + + Channel ch = b.bind(PORT).sync().channel(); + + System.err.println("Open your web browser and navigate to " + + (SSL? "https" : "http") + "://127.0.0.1:" + PORT + '/'); + + ch.closeFuture().sync(); + } finally { + bossGroup.shutdownGracefully(); + workerGroup.shutdownGracefully(); + } + } +} diff --git a/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServerHandler.java b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServerHandler.java new file mode 100644 index 0000000..0f6b62b --- /dev/null +++ b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServerHandler.java @@ -0,0 +1,453 @@ +/* + * Copyright 2021 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: + * + * 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 io.netty.buffer.api.examples.http.upload; + +import io.netty.buffer.ByteBuf; +import io.netty.channel.Channel; +import io.netty.channel.ChannelFuture; +import io.netty.channel.ChannelFutureListener; +import io.netty.channel.ChannelHandlerContext; +import io.netty.channel.SimpleChannelInboundHandler; +import io.netty.handler.codec.http.DefaultFullHttpResponse; +import io.netty.handler.codec.http.FullHttpResponse; +import io.netty.handler.codec.http.HttpContent; +import io.netty.handler.codec.http.HttpHeaderNames; +import io.netty.handler.codec.http.HttpHeaderValues; +import io.netty.handler.codec.http.HttpMethod; +import io.netty.handler.codec.http.HttpObject; +import io.netty.handler.codec.http.HttpRequest; +import io.netty.handler.codec.http.HttpResponseStatus; +import io.netty.handler.codec.http.HttpUtil; +import io.netty.handler.codec.http.HttpVersion; +import io.netty.handler.codec.http.LastHttpContent; +import io.netty.handler.codec.http.QueryStringDecoder; +import io.netty.handler.codec.http.cookie.Cookie; +import io.netty.handler.codec.http.cookie.ServerCookieDecoder; +import io.netty.handler.codec.http.cookie.ServerCookieEncoder; +import io.netty.handler.codec.http.multipart.Attribute; +import io.netty.handler.codec.http.multipart.DefaultHttpDataFactory; +import io.netty.handler.codec.http.multipart.DiskAttribute; +import io.netty.handler.codec.http.multipart.DiskFileUpload; +import io.netty.handler.codec.http.multipart.FileUpload; +import io.netty.handler.codec.http.multipart.HttpData; +import io.netty.handler.codec.http.multipart.HttpDataFactory; +import io.netty.handler.codec.http.multipart.HttpPostRequestDecoder; +import io.netty.handler.codec.http.multipart.HttpPostRequestDecoder.EndOfDataDecoderException; +import io.netty.handler.codec.http.multipart.HttpPostRequestDecoder.ErrorDataDecoderException; +import io.netty.handler.codec.http.multipart.InterfaceHttpData; +import io.netty.handler.codec.http.multipart.InterfaceHttpData.HttpDataType; +import io.netty.util.CharsetUtil; + +import java.io.IOException; +import java.net.URI; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; +import java.util.Set; +import java.util.logging.Level; +import java.util.logging.Logger; + +import static io.netty.buffer.Unpooled.copiedBuffer; + +public class HttpUploadServerHandler extends SimpleChannelInboundHandler { + + private static final Logger logger = Logger.getLogger(HttpUploadServerHandler.class.getName()); + + private HttpRequest request; + + private HttpData partialContent; + + private final StringBuilder responseContent = new StringBuilder(); + + private static final HttpDataFactory factory = + new DefaultHttpDataFactory(DefaultHttpDataFactory.MINSIZE); // Disk if size exceed + + private HttpPostRequestDecoder decoder; + + static { + DiskFileUpload.deleteOnExitTemporaryFile = true; // should delete file + // on exit (in normal + // exit) + DiskFileUpload.baseDirectory = null; // system temp directory + DiskAttribute.deleteOnExitTemporaryFile = true; // should delete file on + // exit (in normal exit) + DiskAttribute.baseDirectory = null; // system temp directory + } + + @Override + public void channelInactive(ChannelHandlerContext ctx) throws Exception { + if (decoder != null) { + decoder.cleanFiles(); + } + } + + @Override + public void messageReceived(ChannelHandlerContext ctx, HttpObject msg) throws Exception { + if (msg instanceof HttpRequest) { + HttpRequest request = this.request = (HttpRequest) msg; + URI uri = new URI(request.uri()); + if (!uri.getPath().startsWith("/form")) { + // Write Menu + writeMenu(ctx); + return; + } + responseContent.setLength(0); + responseContent.append("WELCOME TO THE WILD WILD WEB SERVER\r\n"); + responseContent.append("===================================\r\n"); + + responseContent.append("VERSION: " + request.protocolVersion().text() + "\r\n"); + + responseContent.append("REQUEST_URI: " + request.uri() + "\r\n\r\n"); + responseContent.append("\r\n\r\n"); + + // new getMethod + for (Entry entry : request.headers()) { + responseContent.append("HEADER: " + entry.getKey() + '=' + entry.getValue() + "\r\n"); + } + responseContent.append("\r\n\r\n"); + + // new getMethod + Set cookies; + String value = request.headers().get(HttpHeaderNames.COOKIE); + if (value == null) { + cookies = Collections.emptySet(); + } else { + cookies = ServerCookieDecoder.STRICT.decode(value); + } + for (Cookie cookie : cookies) { + responseContent.append("COOKIE: " + cookie + "\r\n"); + } + responseContent.append("\r\n\r\n"); + + QueryStringDecoder decoderQuery = new QueryStringDecoder(request.uri()); + Map> uriAttributes = decoderQuery.parameters(); + for (Entry> attr: uriAttributes.entrySet()) { + for (String attrVal: attr.getValue()) { + responseContent.append("URI: " + attr.getKey() + '=' + attrVal + "\r\n"); + } + } + responseContent.append("\r\n\r\n"); + + // if GET Method: should not try to create an HttpPostRequestDecoder + if (HttpMethod.GET.equals(request.method())) { + // GET Method: should not try to create an HttpPostRequestDecoder + // So stop here + responseContent.append("\r\n\r\nEND OF GET CONTENT\r\n"); + // Not now: LastHttpContent will be sent writeResponse(ctx.channel()); + return; + } + try { + decoder = new HttpPostRequestDecoder(factory, request); + } catch (ErrorDataDecoderException e1) { + logger.log(Level.WARNING, e1.getMessage(), e1); + responseContent.append(e1.getMessage()); + writeResponse(ctx.channel(), true); + return; + } + + boolean readingChunks = HttpUtil.isTransferEncodingChunked(request); + responseContent.append("Is Chunked: " + readingChunks + "\r\n"); + responseContent.append("IsMultipart: " + decoder.isMultipart() + "\r\n"); + if (readingChunks) { + // Chunk version + responseContent.append("Chunks: "); + } + } + + // check if the decoder was constructed before + // if not it handles the form get + if (decoder != null) { + if (msg instanceof HttpContent) { + // New chunk is received + HttpContent chunk = (HttpContent) msg; + try { + decoder.offer(chunk); + } catch (ErrorDataDecoderException e1) { + logger.log(Level.WARNING, e1.getMessage(), e1); + responseContent.append(e1.getMessage()); + writeResponse(ctx.channel(), true); + return; + } + responseContent.append('o'); + // example of reading chunk by chunk (minimize memory usage due to + // Factory) + readHttpDataChunkByChunk(); + // example of reading only if at the end + if (chunk instanceof LastHttpContent) { + writeResponse(ctx.channel()); + + reset(); + } + } + } else { + writeResponse(ctx.channel()); + } + } + + private void reset() { + request = null; + + // destroy the decoder to release all resources + decoder.destroy(); + decoder = null; + } + + /** + * Example of reading request by chunk and getting values from chunk to chunk + */ + private void readHttpDataChunkByChunk() { + try { + while (decoder.hasNext()) { + InterfaceHttpData data = decoder.next(); + if (data != null) { + // check if current HttpData is a FileUpload and previously set as partial + long length = -1; + if (partialContent == data) { + logger.info(" 100% (FinalSize: " + (length = partialContent.length()) + ')'); + partialContent = null; + } + // new value + writeHttpData(data); + } + } + // Check partial decoding for a FileUpload + InterfaceHttpData data = decoder.currentPartialHttpData(); + if (data != null) { + StringBuilder builder = new StringBuilder(); + if (partialContent == null) { + partialContent = (HttpData) data; + if (partialContent instanceof FileUpload) { + builder.append("Start FileUpload: ") + .append(((FileUpload) partialContent).getFilename()).append(' '); + } else { + builder.append("Start Attribute: ") + .append(partialContent.getName()).append(' '); + } + builder.append("(DefinedSize: ").append(partialContent.definedLength()).append(')'); + } + if (partialContent.definedLength() > 0) { + builder.append(' ').append(partialContent.length() * 100 / partialContent.definedLength()) + .append("% "); + } else { + builder.append(' ').append(partialContent.length()).append(' '); + } + logger.info(builder.toString()); + } + } catch (EndOfDataDecoderException e1) { + // end + responseContent.append("\r\n\r\nEND OF CONTENT CHUNK BY CHUNK\r\n\r\n"); + } + } + + private void writeHttpData(InterfaceHttpData data) { + if (data.getHttpDataType() == HttpDataType.Attribute) { + Attribute attribute = (Attribute) data; + String value; + try { + value = attribute.getValue(); + } catch (IOException e1) { + // Error while reading data from File, only print name and error + logger.log(Level.WARNING, e1.getMessage(), e1); + responseContent.append("\r\nBODY Attribute: " + attribute.getHttpDataType().name() + ": " + + attribute.getName() + " Error while reading value: " + e1.getMessage() + "\r\n"); + return; + } + if (value.length() > 100) { + responseContent.append("\r\nBODY Attribute: " + attribute.getHttpDataType().name() + ": " + + attribute.getName() + " data too long\r\n"); + } else { + responseContent.append("\r\nBODY Attribute: " + attribute.getHttpDataType().name() + ": " + + attribute + "\r\n"); + } + } else { + responseContent.append("\r\nBODY FileUpload: " + data.getHttpDataType().name() + ": " + data + + "\r\n"); + if (data.getHttpDataType() == HttpDataType.FileUpload) { + FileUpload fileUpload = (FileUpload) data; + if (fileUpload.isCompleted()) { + if (fileUpload.length() < 10000) { + responseContent.append("\tContent of file\r\n"); + try { + responseContent.append(fileUpload.getString(fileUpload.getCharset())); + } catch (IOException e1) { + // do nothing for the example + logger.log(Level.WARNING, e1.getMessage(), e1); + } + responseContent.append("\r\n"); + } else { + responseContent.append("\tFile too long to be printed out:" + fileUpload.length() + "\r\n"); + } + // fileUpload.isInMemory();// tells if the file is in Memory + // or on File + // fileUpload.renameTo(dest); // enable to move into another + // File dest + // decoder.removeFileUploadFromClean(fileUpload); //remove + // the File of to delete file + } else { + responseContent.append("\tFile to be continued but should not!\r\n"); + } + } + } + } + + private void writeResponse(Channel channel) { + writeResponse(channel, false); + } + + private void writeResponse(Channel channel, boolean forceClose) { + // Convert the response content to a ChannelBuffer. + ByteBuf buf = copiedBuffer(responseContent.toString(), CharsetUtil.UTF_8); + responseContent.setLength(0); + + // Decide whether to close the connection or not. + boolean keepAlive = HttpUtil.isKeepAlive(request) && !forceClose; + + // Build the response object. + FullHttpResponse response = new DefaultFullHttpResponse( + HttpVersion.HTTP_1_1, HttpResponseStatus.OK, buf); + response.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/plain; charset=UTF-8"); + response.headers().setInt(HttpHeaderNames.CONTENT_LENGTH, buf.readableBytes()); + + if (!keepAlive) { + response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE); + } else if (request.protocolVersion().equals(HttpVersion.HTTP_1_0)) { + response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE); + } + + Set cookies; + String value = request.headers().get(HttpHeaderNames.COOKIE); + if (value == null) { + cookies = Collections.emptySet(); + } else { + cookies = ServerCookieDecoder.STRICT.decode(value); + } + if (!cookies.isEmpty()) { + // Reset the cookies if necessary. + for (Cookie cookie : cookies) { + response.headers().add(HttpHeaderNames.SET_COOKIE, ServerCookieEncoder.STRICT.encode(cookie)); + } + } + // Write the response. + ChannelFuture future = channel.writeAndFlush(response); + // Close the connection after the write operation is done if necessary. + if (!keepAlive) { + future.addListener(ChannelFutureListener.CLOSE); + } + } + + private void writeMenu(ChannelHandlerContext ctx) { + // print several HTML forms + // Convert the response content to a ChannelBuffer. + responseContent.setLength(0); + + // create Pseudo Menu + responseContent.append(""); + responseContent.append(""); + responseContent.append("Netty Test Form\r\n"); + responseContent.append("\r\n"); + responseContent.append(""); + + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append("
"); + responseContent.append("

Netty Test Form

"); + responseContent.append("Choose one FORM"); + responseContent.append("
\r\n"); + + // GET + responseContent.append("
GET FORM
"); + responseContent.append("
"); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append("
Fill with value:
Fill with value:
"); + responseContent + .append("
Fill with value:
"); + responseContent.append("
\r\n"); + responseContent.append("
"); + + // POST + responseContent.append("
POST FORM
"); + responseContent.append("
"); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append("
Fill with value:
Fill with value:
"); + responseContent + .append("
Fill with value:
"); + responseContent.append("
Fill with file (only file name will be transmitted):
" + + ""); + responseContent.append("
\r\n"); + responseContent.append("
"); + + // POST with enctype="multipart/form-data" + responseContent.append("
POST MULTIPART FORM
"); + responseContent.append("
"); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append(""); + responseContent.append("
Fill with value:
Fill with value:
"); + responseContent + .append("
Fill with value:
"); + responseContent.append("
Fill with file:
"); + responseContent.append("
\r\n"); + responseContent.append("
"); + + responseContent.append(""); + responseContent.append(""); + + ByteBuf buf = copiedBuffer(responseContent.toString(), CharsetUtil.UTF_8); + // Build the response object. + FullHttpResponse response = new DefaultFullHttpResponse( + HttpVersion.HTTP_1_1, HttpResponseStatus.OK, buf); + + response.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/html; charset=UTF-8"); + response.headers().setInt(HttpHeaderNames.CONTENT_LENGTH, buf.readableBytes()); + + // Decide whether to close the connection or not. + boolean keepAlive = HttpUtil.isKeepAlive(request); + if (!keepAlive) { + response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE); + } else if (request.protocolVersion().equals(HttpVersion.HTTP_1_0)) { + response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE); + } + + // Write the response. + ChannelFuture future = ctx.channel().writeAndFlush(response); + // Close the connection after the write operation is done if necessary. + if (!keepAlive) { + future.addListener(ChannelFutureListener.CLOSE); + } + } + + @Override + public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception { + logger.log(Level.WARNING, responseContent.toString(), cause); + ctx.channel().close(); + } +} diff --git a/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServerInitializer.java b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServerInitializer.java new file mode 100644 index 0000000..6da70a1 --- /dev/null +++ b/src/test/java/io/netty/buffer/api/examples/http/upload/HttpUploadServerInitializer.java @@ -0,0 +1,50 @@ +/* + * Copyright 2021 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: + * + * 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 io.netty.buffer.api.examples.http.upload; + +import io.netty.channel.ChannelInitializer; +import io.netty.channel.ChannelPipeline; +import io.netty.channel.socket.SocketChannel; +import io.netty.handler.codec.http.HttpContentCompressor; +import io.netty.handler.codec.http.HttpRequestDecoder; +import io.netty.handler.codec.http.HttpResponseEncoder; +import io.netty.handler.ssl.SslContext; + +public class HttpUploadServerInitializer extends ChannelInitializer { + + private final SslContext sslCtx; + + public HttpUploadServerInitializer(SslContext sslCtx) { + this.sslCtx = sslCtx; + } + + @Override + public void initChannel(SocketChannel ch) { + ChannelPipeline pipeline = ch.pipeline(); + + if (sslCtx != null) { + pipeline.addLast(sslCtx.newHandler(ch.alloc())); + } + + pipeline.addLast(new HttpRequestDecoder()); + pipeline.addLast(new HttpResponseEncoder()); + + // Remove the following line if you don't want automatic content compression. + pipeline.addLast(new HttpContentCompressor()); + + pipeline.addLast(new HttpUploadServerHandler()); + } +}