| /* |
| * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 8164704 |
| * @modules java.net.http |
| * jdk.httpserver |
| * java.base/sun.net.www |
| * @run main MessageHeadersTest |
| * @summary Tests expected behavior of MessageHeader. This test |
| * cannot be used to verify 8164704 - it simply verifies |
| * the assumptions on which the fix is based. |
| */ |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.UnsupportedEncodingException; |
| import java.nio.ByteBuffer; |
| |
| |
| public class MessageHeadersTest { |
| |
| static final String BODY = |
| "This is the body dude,\r\n" |
| + "not a header!\r\n"; |
| |
| static final String MESSAGE_OK = |
| "HTTP/1.1 200 OK\r\n" |
| + "Content-Length: " + BODY.length() + "\r\n" |
| + "MY-Folding-Header: YES\r\n" |
| + " OR\r\n" |
| + " NO\r\n" |
| + "\r\n" |
| + BODY; |
| |
| static final String MESSAGE_NOK = |
| "HTTP/1.1 101 Switching Protocols\r\n" |
| + "\r\n"; |
| |
| static final class ByteBufferInputStream extends InputStream { |
| final ByteBuffer buffer; |
| int lastRead = -1; |
| ByteBufferInputStream(ByteBuffer buffer) { |
| this.buffer = buffer; |
| } |
| @Override |
| public int read() throws IOException { |
| if (buffer.hasRemaining()) { |
| return lastRead = buffer.get(); |
| } |
| return -1; |
| } |
| } |
| |
| public static void main(String[] args) throws IOException { |
| testMessageHeaders(MESSAGE_OK); |
| testMessageHeaders(MESSAGE_NOK); |
| } |
| |
| /** |
| * Verifies that MessageHeader behave as we expect. |
| * @param msg The response string. |
| * @throws IOException should not happen. |
| */ |
| static void testMessageHeaders(String msg) throws IOException { |
| byte[] bytes = msg.getBytes("US-ASCII"); |
| ByteBuffer buffer = ByteBuffer.wrap(bytes); |
| |
| // Read status line |
| String statusLine = readStatusLine(buffer); |
| System.out.println("StatusLine: " + statusLine); |
| if (!statusLine.startsWith("HTTP/1.1")) { |
| throw new AssertionError("bad status line: " + statusLine); |
| } |
| |
| // Wrap the buffer into an input stream and pass |
| // that to MessageHeader to read the header. |
| // We have two cases: |
| // - MESSAGE_OK: there will be some headers to read, |
| // - MESSAGE_NOK: there will be no headers to read. |
| ByteBufferInputStream bbis = new ByteBufferInputStream(buffer); |
| sun.net.www.MessageHeader mh = new sun.net.www.MessageHeader(bbis); |
| |
| // Now get the expected length of the body |
| String contentLengthValue = mh.findValue("Content-length"); |
| int contentLength = contentLengthValue == null ? 0 |
| : Integer.parseInt(contentLengthValue); |
| |
| // We again have two cases: |
| // - MESSAGE_OK: there should be a Content-length: header |
| // - MESSAGE_NOK: there should be no Content-length: header |
| if (contentLengthValue == null) { |
| // MESSAGE_NOK has no headers and no body and therefore |
| // no Content-length: header. |
| if (!MESSAGE_NOK.equals(msg)) { |
| throw new AssertionError("Content-length: header not found"); |
| } |
| // In that case we expect MessageHeader to read the CR but |
| // leave the LF in the buffer. We therefore need to consume |
| // the the LF in order to get an empty (all consumed) buffer. |
| // This is what ResponseHeaders does. |
| byte c = buffer.get(); |
| if (c != '\n' || bbis.lastRead != '\r') { |
| throw new AssertionError("Unexpected byte sequence for empty body" |
| + ": " + bbis.lastRead + " " + c + " expected " |
| + (byte)'\r' + " " + (byte)'\n'); |
| } |
| } else { |
| if (MESSAGE_NOK.equals(msg)) { |
| throw new AssertionError("Content-length: header found in" |
| + " error 101 message"); |
| } |
| } |
| |
| // Now read the remaining bytes. It should either be |
| // the empty string (MESSAGE_NOK) or BODY (MESSAGE_OK), |
| // and it should not contains any leading CR or LF" |
| String remaining = readRemainingBytes(buffer); |
| System.out.println("Body: <<<" + remaining + ">>>"); |
| if (remaining.length() != contentLength) { |
| throw new AssertionError("Unexpected body length: " + remaining.length() |
| + " expected " + contentLengthValue); |
| } |
| if (contentLengthValue != null) { |
| if (!BODY.equals(remaining)) { |
| throw new AssertionError("Body does not match!"); |
| } |
| } |
| } |
| |
| static String readRemainingBytes(ByteBuffer buffer) throws UnsupportedEncodingException { |
| byte[] res = new byte[buffer.limit() - buffer.position()]; |
| System.arraycopy(buffer.array(), buffer.position(), res, 0, res.length); |
| buffer.position(buffer.limit()); |
| return new String(res, "US-ASCII"); |
| } |
| |
| static String readStatusLine(ByteBuffer buffer) throws IOException { |
| buffer.mark(); |
| int p = buffer.position(); |
| while(buffer.hasRemaining()) { |
| char c = (char)buffer.get(); |
| if (c == '\r') { |
| c = (char)buffer.get(); |
| if (c == '\n') { |
| byte[] res = new byte[buffer.position() - p -2]; |
| System.arraycopy(buffer.array(), p, res, 0, res.length); |
| return new String(res, "US-ASCII"); |
| } |
| } |
| } |
| throw new IOException("Status line not found"); |
| } |
| } |