author | dfuchs |
Wed, 31 Jan 2018 16:18:41 +0000 | |
branch | http-client-branch |
changeset 56054 | 352e845ae744 |
parent 56041 | b4b5e09ef3cc |
child 56067 | 31eb9176ba85 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2018, 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 java.util.function.BiPredicate; |
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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 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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Http1Exchange<?> http1Exchange) |
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throws IOException |
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{ |
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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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BiPredicate<String,List<String>> filter = |
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connection.headerFilter(request); |
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// If we're sending this request through a tunnel, |
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// then don't send any preemptive proxy-* headers that |
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// the authentication filter may have saved in its |
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// cache. |
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collectHeaders1(sb, systemHeaders, filter); |
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// If we're sending this request through a tunnel, |
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// don't send any user-supplied proxy-* headers |
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// to the target server. |
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collectHeaders1(sb, userHeaders, filter); |
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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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BiPredicate<String, List<String>> filter) { |
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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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if (!filter.test(key, values)) continue; |
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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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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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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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158 |
|
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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")) { |
173 |
// use authority for connect itself |
|
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return authorityString(request.authority()); |
|
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} |
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|
48083 | 177 |
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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|
48083 | 190 |
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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200 |
|
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URI uri = request.uri(); |
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if (uri != null) { |
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systemHeaders.setHeader("Host", hostString()); |
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} |
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if (request == null || requestPublisher == null) { |
206 |
// 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 { |
48083 | 209 |
contentLength = requestPublisher.contentLength(); |
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} |
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211 |
|
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if (contentLength == 0) { |
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systemHeaders.setHeader("Content-Length", "0"); |
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} 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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217 |
} else { |
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streaming = true; |
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systemHeaders.setHeader("Transfer-encoding", "chunked"); |
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220 |
} |
48083 | 221 |
collectHeaders0(sb); |
222 |
String hs = sb.toString(); |
|
223 |
logHeaders(hs); |
|
224 |
ByteBuffer b = ByteBuffer.wrap(hs.getBytes(US_ASCII)); |
|
225 |
return List.of(b); |
|
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} |
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227 |
|
48083 | 228 |
Http1BodySubscriber continueRequest() { |
229 |
Http1BodySubscriber subscriber; |
|
230 |
if (streaming) { |
|
231 |
subscriber = new StreamSubscriber(); |
|
232 |
requestPublisher.subscribe(subscriber); |
|
233 |
} else { |
|
234 |
if (contentLength == 0) |
|
235 |
return null; |
|
236 |
||
237 |
subscriber = new FixedContentSubscriber(); |
|
238 |
requestPublisher.subscribe(subscriber); |
|
239 |
} |
|
240 |
return subscriber; |
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} |
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|
48083 | 243 |
class StreamSubscriber extends Http1BodySubscriber { |
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244 |
|
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@Override |
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public void onSubscribe(Flow.Subscription subscription) { |
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if (this.subscription != null) { |
48083 | 248 |
Throwable t = new IllegalStateException("already subscribed"); |
249 |
http1Exchange.appendToOutgoing(t); |
|
250 |
} else { |
|
251 |
this.subscription = subscription; |
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} |
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253 |
} |
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254 |
|
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@Override |
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256 |
public void onNext(ByteBuffer item) { |
48083 | 257 |
Objects.requireNonNull(item); |
258 |
if (complete) { |
|
259 |
Throwable t = new IllegalStateException("subscription already completed"); |
|
260 |
http1Exchange.appendToOutgoing(t); |
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261 |
} else { |
48083 | 262 |
int chunklen = item.remaining(); |
263 |
ArrayList<ByteBuffer> l = new ArrayList<>(3); |
|
264 |
l.add(getHeader(chunklen)); |
|
265 |
l.add(item); |
|
266 |
l.add(ByteBuffer.wrap(CRLF)); |
|
267 |
http1Exchange.appendToOutgoing(l); |
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} |
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269 |
} |
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270 |
|
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271 |
@Override |
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272 |
public void onError(Throwable throwable) { |
48083 | 273 |
if (complete) |
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return; |
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subscription.cancel(); |
48083 | 277 |
http1Exchange.appendToOutgoing(throwable); |
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} |
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279 |
|
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@Override |
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281 |
public void onComplete() { |
48083 | 282 |
if (complete) { |
283 |
Throwable t = new IllegalStateException("subscription already completed"); |
|
284 |
http1Exchange.appendToOutgoing(t); |
|
285 |
} else { |
|
286 |
ArrayList<ByteBuffer> l = new ArrayList<>(2); |
|
287 |
l.add(ByteBuffer.wrap(EMPTY_CHUNK_BYTES)); |
|
288 |
l.add(ByteBuffer.wrap(CRLF)); |
|
289 |
complete = true; |
|
290 |
//setFinished(); |
|
291 |
http1Exchange.appendToOutgoing(l); |
|
292 |
http1Exchange.appendToOutgoing(COMPLETED); |
|
293 |
setFinished(); // TODO: before or after,? does it matter? |
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294 |
|
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295 |
} |
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296 |
} |
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297 |
} |
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298 |
|
48083 | 299 |
class FixedContentSubscriber extends Http1BodySubscriber { |
300 |
||
301 |
private volatile long contentWritten; |
|
302 |
||
303 |
@Override |
|
304 |
public void onSubscribe(Flow.Subscription subscription) { |
|
305 |
if (this.subscription != null) { |
|
306 |
Throwable t = new IllegalStateException("already subscribed"); |
|
307 |
http1Exchange.appendToOutgoing(t); |
|
308 |
} else { |
|
309 |
this.subscription = subscription; |
|
310 |
} |
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311 |
} |
48083 | 312 |
|
313 |
@Override |
|
314 |
public void onNext(ByteBuffer item) { |
|
315 |
debug.log(Level.DEBUG, "onNext"); |
|
316 |
Objects.requireNonNull(item); |
|
317 |
if (complete) { |
|
318 |
Throwable t = new IllegalStateException("subscription already completed"); |
|
319 |
http1Exchange.appendToOutgoing(t); |
|
320 |
} else { |
|
321 |
long writing = item.remaining(); |
|
322 |
long written = (contentWritten += writing); |
|
323 |
||
324 |
if (written > contentLength) { |
|
325 |
subscription.cancel(); |
|
326 |
String msg = connection.getConnectionFlow() |
|
327 |
+ " [" + Thread.currentThread().getName() +"] " |
|
328 |
+ "Too many bytes in request body. Expected: " |
|
329 |
+ contentLength + ", got: " + written; |
|
330 |
http1Exchange.appendToOutgoing(new IOException(msg)); |
|
331 |
} else { |
|
332 |
http1Exchange.appendToOutgoing(List.of(item)); |
|
333 |
} |
|
334 |
} |
|
335 |
} |
|
336 |
||
337 |
@Override |
|
338 |
public void onError(Throwable throwable) { |
|
339 |
debug.log(Level.DEBUG, "onError"); |
|
340 |
if (complete) // TODO: error? |
|
341 |
return; |
|
342 |
||
343 |
subscription.cancel(); |
|
344 |
http1Exchange.appendToOutgoing(throwable); |
|
345 |
} |
|
346 |
||
347 |
@Override |
|
348 |
public void onComplete() { |
|
349 |
debug.log(Level.DEBUG, "onComplete"); |
|
350 |
if (complete) { |
|
351 |
Throwable t = new IllegalStateException("subscription already completed"); |
|
352 |
http1Exchange.appendToOutgoing(t); |
|
353 |
} else { |
|
354 |
complete = true; |
|
355 |
long written = contentWritten; |
|
356 |
if (contentLength > written) { |
|
357 |
subscription.cancel(); |
|
358 |
Throwable t = new IOException(connection.getConnectionFlow() |
|
359 |
+ " [" + Thread.currentThread().getName() +"] " |
|
360 |
+ "Too few bytes returned by the publisher (" |
|
361 |
+ written + "/" |
|
362 |
+ contentLength + ")"); |
|
363 |
http1Exchange.appendToOutgoing(t); |
|
364 |
} else { |
|
365 |
http1Exchange.appendToOutgoing(COMPLETED); |
|
366 |
} |
|
367 |
} |
|
368 |
} |
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|
369 |
} |
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|
370 |
|
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371 |
private static final byte[] CRLF = {'\r', '\n'}; |
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372 |
private static final byte[] EMPTY_CHUNK_BYTES = {'0', '\r', '\n'}; |
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373 |
|
48083 | 374 |
/** Returns a header for a particular chunk size */ |
375 |
private static ByteBuffer getHeader(int size) { |
|
376 |
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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} |
48083 | 384 |
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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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} |