author | chegar |
Sun, 05 Nov 2017 21:19:55 +0000 | |
branch | http-client-branch |
changeset 55764 | 34d7cc00f87a |
parent 55763 | 634d8e14c172 |
child 55799 | c71f52f48d97 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.incubator.http; |
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import java.io.IOException; |
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import java.lang.System.Logger.Level; |
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import java.net.URI; |
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import java.nio.ByteBuffer; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.Map; |
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import java.net.InetSocketAddress; |
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import java.util.Objects; |
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import java.util.concurrent.Flow; |
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import jdk.incubator.http.Http1Exchange.Http1BodySubscriber; |
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import jdk.incubator.http.internal.common.HttpHeadersImpl; |
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import jdk.incubator.http.internal.common.Log; |
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import jdk.incubator.http.internal.common.Utils; |
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import static java.nio.charset.StandardCharsets.US_ASCII; |
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/** |
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* An HTTP/1.1 request. |
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*/ |
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class Http1Request { |
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private final HttpClientImpl client; |
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private final HttpRequestImpl request; |
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private final Http1Exchange<?> http1Exchange; |
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private final HttpConnection connection; |
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private final HttpRequest.BodyPublisher requestPublisher; |
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private final HttpHeaders userHeaders; |
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private final HttpHeadersImpl systemHeaders; |
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private volatile boolean streaming; |
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private volatile long contentLength; |
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Http1Request(HttpRequestImpl request, |
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HttpClientImpl client, |
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Http1Exchange<?> http1Exchange) |
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throws IOException |
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{ |
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this.client = client; |
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this.request = request; |
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this.http1Exchange = http1Exchange; |
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this.connection = http1Exchange.connection(); |
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this.requestPublisher = request.requestPublisher; // may be null |
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this.userHeaders = request.getUserHeaders(); |
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this.systemHeaders = request.getSystemHeaders(); |
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} |
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private void logHeaders(String completeHeaders) { |
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if (Log.headers()) { |
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//StringBuilder sb = new StringBuilder(256); |
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//sb.append("REQUEST HEADERS:\n"); |
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//Log.dumpHeaders(sb, " ", systemHeaders); |
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//Log.dumpHeaders(sb, " ", userHeaders); |
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//Log.logHeaders(sb.toString()); |
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String s = completeHeaders.replaceAll("\r\n", "\n"); |
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Log.logHeaders("REQUEST HEADERS:\n" + s); |
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} |
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} |
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private void collectHeaders0(StringBuilder sb) { |
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collectHeaders1(sb, systemHeaders); |
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collectHeaders1(sb, userHeaders); |
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sb.append("\r\n"); |
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} |
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private void collectHeaders1(StringBuilder sb, HttpHeaders headers) { |
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for (Map.Entry<String,List<String>> entry : headers.map().entrySet()) { |
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String key = entry.getKey(); |
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List<String> values = entry.getValue(); |
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for (String value : values) { |
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sb.append(key).append(": ").append(value).append("\r\n"); |
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} |
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} |
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} |
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private String getPathAndQuery(URI uri) { |
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String path = uri.getPath(); |
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String query = uri.getQuery(); |
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if (path == null || path.equals("")) { |
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path = "/"; |
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} |
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if (query == null) { |
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query = ""; |
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} |
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if (query.equals("")) { |
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return path; |
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} else { |
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return path + "?" + query; |
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} |
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} |
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private String authorityString(InetSocketAddress addr) { |
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return addr.getHostString() + ":" + addr.getPort(); |
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} |
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private String hostString() { |
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URI uri = request.uri(); |
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int port = uri.getPort(); |
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String host = uri.getHost(); |
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|
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boolean defaultPort; |
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if (port == -1) { |
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defaultPort = true; |
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} else if (request.secure()) { |
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defaultPort = port == 443; |
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} else { |
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defaultPort = port == 80; |
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} |
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|
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if (defaultPort) { |
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return host; |
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} else { |
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return host + ":" + Integer.toString(port); |
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} |
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} |
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|
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private String requestURI() { |
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URI uri = request.uri(); |
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String method = request.method(); |
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if ((request.proxy() == null && !method.equals("CONNECT")) |
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|| request.isWebSocket()) { |
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return getPathAndQuery(uri); |
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} |
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if (request.secure()) { |
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if (request.method().equals("CONNECT")) { |
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// use authority for connect itself |
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return authorityString(request.authority()); |
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} else { |
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// requests over tunnel do not require full URL |
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return getPathAndQuery(uri); |
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} |
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} |
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if (request.method().equals("CONNECT")) { |
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// use authority for connect itself |
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return authorityString(request.authority()); |
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} |
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|
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return uri == null? authorityString(request.authority()) : uri.toString(); |
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} |
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|
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private boolean finished; |
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|
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synchronized boolean finished() { |
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return finished; |
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} |
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|
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synchronized void setFinished() { |
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finished = true; |
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} |
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|
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List<ByteBuffer> headers() { |
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if (Log.requests() && request != null) { |
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Log.logRequest(request.toString()); |
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} |
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String uriString = requestURI(); |
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StringBuilder sb = new StringBuilder(64); |
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sb.append(request.method()) |
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.append(' ') |
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.append(uriString) |
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.append(" HTTP/1.1\r\n"); |
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189 |
|
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URI uri = request.uri(); |
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191 |
if (uri != null) { |
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systemHeaders.setHeader("Host", hostString()); |
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} |
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if (request == null || requestPublisher == null) { |
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// Not a user request, or maybe a method, e.g. GET, with no body. |
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contentLength = 0; |
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} else { |
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contentLength = requestPublisher.contentLength(); |
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} |
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|
200 |
|
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|
201 |
if (contentLength == 0) { |
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|
202 |
systemHeaders.setHeader("Content-Length", "0"); |
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203 |
} else if (contentLength > 0) { |
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systemHeaders.setHeader("Content-Length", Long.toString(contentLength)); |
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streaming = false; |
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|
206 |
} else { |
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streaming = true; |
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systemHeaders.setHeader("Transfer-encoding", "chunked"); |
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} |
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collectHeaders0(sb); |
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|
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String hs = sb.toString(); |
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logHeaders(hs); |
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ByteBuffer b = ByteBuffer.wrap(hs.getBytes(US_ASCII)); |
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return List.of(b); |
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} |
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|
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Http1BodySubscriber continueRequest() { |
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Http1BodySubscriber subscriber; |
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if (streaming) { |
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subscriber = new StreamSubscriber(); |
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|
221 |
requestPublisher.subscribe(subscriber); |
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|
222 |
} else { |
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|
223 |
if (contentLength == 0) |
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|
224 |
return null; |
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|
225 |
|
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subscriber = new FixedContentSubscriber(); |
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|
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requestPublisher.subscribe(subscriber); |
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|
228 |
} |
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229 |
return subscriber; |
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} |
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|
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class StreamSubscriber extends Http1BodySubscriber { |
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233 |
|
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234 |
@Override |
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public void onSubscribe(Flow.Subscription subscription) { |
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if (this.subscription != null) { |
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Throwable t = new IllegalStateException("already subscribed"); |
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http1Exchange.appendToOutgoing(t); |
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|
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} else { |
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this.subscription = subscription; |
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} |
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} |
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|
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@Override |
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public void onNext(ByteBuffer item) { |
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Objects.requireNonNull(item); |
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if (complete) { |
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Throwable t = new IllegalStateException("subscription already completed"); |
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http1Exchange.appendToOutgoing(t); |
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} else { |
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int chunklen = item.remaining(); |
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ArrayList<ByteBuffer> l = new ArrayList<>(3); |
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l.add(getHeader(chunklen)); |
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254 |
l.add(item); |
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l.add(ByteBuffer.wrap(CRLF)); |
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http1Exchange.appendToOutgoing(l); |
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} |
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} |
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|
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@Override |
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public void onError(Throwable throwable) { |
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if (complete) |
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return; |
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|
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subscription.cancel(); |
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http1Exchange.appendToOutgoing(throwable); |
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} |
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|
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@Override |
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public void onComplete() { |
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if (complete) { |
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Throwable t = new IllegalStateException("subscription already completed"); |
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http1Exchange.appendToOutgoing(t); |
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} else { |
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ArrayList<ByteBuffer> l = new ArrayList<>(2); |
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l.add(ByteBuffer.wrap(EMPTY_CHUNK_BYTES)); |
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l.add(ByteBuffer.wrap(CRLF)); |
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complete = true; |
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//setFinished(); |
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http1Exchange.appendToOutgoing(l); |
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http1Exchange.appendToOutgoing(COMPLETED); |
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setFinished(); // TODO: before or after,? does it matter? |
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|
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} |
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} |
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} |
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|
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class FixedContentSubscriber extends Http1BodySubscriber { |
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|
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private volatile long contentWritten; |
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|
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@Override |
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public void onSubscribe(Flow.Subscription subscription) { |
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if (this.subscription != null) { |
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Throwable t = new IllegalStateException("already subscribed"); |
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http1Exchange.appendToOutgoing(t); |
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} else { |
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this.subscription = subscription; |
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} |
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} |
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|
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@Override |
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public void onNext(ByteBuffer item) { |
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debug.log(Level.DEBUG, "onNext"); |
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Objects.requireNonNull(item); |
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if (complete) { |
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Throwable t = new IllegalStateException("subscription already completed"); |
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http1Exchange.appendToOutgoing(t); |
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} else { |
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long writing = item.remaining(); |
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long written = (contentWritten += writing); |
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|
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if (written > contentLength) { |
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subscription.cancel(); |
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String msg = connection.getConnectionFlow() |
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+ " [" + Thread.currentThread().getName() +"] " |
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+ "Too many bytes in request body. Expected: " |
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+ contentLength + ", got: " + written; |
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http1Exchange.appendToOutgoing(new IOException(msg)); |
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} else { |
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http1Exchange.appendToOutgoing(List.of(item)); |
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} |
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} |
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} |
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|
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@Override |
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public void onError(Throwable throwable) { |
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debug.log(Level.DEBUG, "onError"); |
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if (complete) // TODO: error? |
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return; |
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|
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subscription.cancel(); |
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http1Exchange.appendToOutgoing(throwable); |
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} |
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|
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@Override |
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public void onComplete() { |
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debug.log(Level.DEBUG, "onComplete"); |
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if (complete) { |
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Throwable t = new IllegalStateException("subscription already completed"); |
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http1Exchange.appendToOutgoing(t); |
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} else { |
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complete = true; |
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long written = contentWritten; |
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|
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if (contentLength > written) { |
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subscription.cancel(); |
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Throwable t = new IOException(connection.getConnectionFlow() |
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+ " [" + Thread.currentThread().getName() +"] " |
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+ "Too few bytes returned by the publisher (" |
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+ written + "/" |
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351 |
+ contentLength + ")"); |
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http1Exchange.appendToOutgoing(t); |
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} else { |
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http1Exchange.appendToOutgoing(COMPLETED); |
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355 |
} |
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356 |
} |
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357 |
} |
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} |
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359 |
|
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360 |
private static final byte[] CRLF = {'\r', '\n'}; |
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private static final byte[] EMPTY_CHUNK_BYTES = {'0', '\r', '\n'}; |
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|
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/** Returns a header for a particular chunk size */ |
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private static ByteBuffer getHeader(int size) { |
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String hexStr = Integer.toHexString(size); |
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byte[] hexBytes = hexStr.getBytes(US_ASCII); |
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byte[] header = new byte[hexStr.length()+2]; |
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System.arraycopy(hexBytes, 0, header, 0, hexBytes.length); |
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header[hexBytes.length] = CRLF[0]; |
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header[hexBytes.length+1] = CRLF[1]; |
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return ByteBuffer.wrap(header); |
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} |
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|
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static final boolean DEBUG = Utils.DEBUG; // Revisit: temporary dev flag. |
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final System.Logger debug = Utils.getDebugLogger(this::toString, DEBUG); |
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|
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} |