| /* |
| * Copyright (c) 1999, 2011, 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 4160195 7026346 |
| * @summary Check for correct detection of XML content type, including BOM streams |
| */ |
| |
| import java.io.*; |
| import java.net.*; |
| |
| |
| public class GetXmlContentType { |
| |
| static final String XML_MIME_TYPE = "application/xml"; |
| static final String XML_HEADER = "<?xml"; |
| static int passed, failed; |
| |
| // guess type from content and filename |
| static final String goodFiles [] = { |
| "xml1", // US-ASCII and supersets |
| "xml2.xml", // typed inferred from filename |
| "xml3", // UTF-16 little endian (partial) |
| "xml4" // UTF-16 big endian (partial) |
| }; |
| |
| // some common non-XML examples |
| static final String badFiles [] = { |
| "not-xml1", |
| "not-xml2" |
| }; |
| |
| public static void main(String[] args) throws Exception { |
| contentTypeFromFile(); |
| contentTypeFromBOMStream(); |
| |
| if (failed > 0) |
| throw new RuntimeException ( |
| "Test failed; passed = " + passed + ", failed = " + failed); |
| } |
| |
| static void contentTypeFromFile() throws Exception { |
| // POSITIVE tests: good data --> good result |
| |
| for (String goodFile : goodFiles) { |
| String result = getUrlContentType(goodFile); |
| |
| if (!XML_MIME_TYPE.equals(result)) { |
| System.out.println("Wrong MIME type: " + goodFile + " --> " + result); |
| failed++; |
| } else { |
| passed++; |
| } |
| } |
| |
| // NEGATIVE tests: bad data --> correct diagnostic |
| for (String badFile : badFiles) { |
| String result = getUrlContentType(badFile); |
| |
| if (XML_MIME_TYPE.equals(result)) { |
| System.out.println("Wrong MIME type: " + badFile + " --> " + result); |
| failed++; |
| } else { |
| passed++; |
| } |
| } |
| } |
| |
| static String getUrlContentType(String name) throws IOException { |
| File file = new File(System.getProperty("test.src", "."), "xml"); |
| URL u = new URL("file:" |
| + file.getCanonicalPath() |
| + file.separator |
| + name); |
| URLConnection conn = u.openConnection(); |
| |
| return conn.getContentType(); |
| } |
| |
| static void contentTypeFromBOMStream() throws Exception { |
| final String[] encodings = new String[] |
| {"UTF-8", "UTF-16BE", "UTF-16LE", "UTF-32BE", "UTF-32LE"}; |
| for (String encoding : encodings) { |
| try (InputStream is = new ByteArrayInputStream(toBOMBytes(encoding))) { |
| String mime = URLConnection.guessContentTypeFromStream(is); |
| if ( !XML_MIME_TYPE.equals(mime) ) { |
| System.out.println("Wrong MIME type: " + encoding + " --> " + mime); |
| failed++; |
| } else { |
| passed++; |
| } |
| } |
| } |
| } |
| |
| static byte[] toBOMBytes(String encoding) throws Exception { |
| ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| |
| switch (encoding) { |
| case "UTF-8" : |
| bos.write(new byte[] { (byte) 0xEF, (byte) 0xBB, (byte) 0xBF }); |
| break; |
| case "UTF-16BE" : |
| bos.write(new byte[] { (byte) 0xFE, (byte) 0xFF }); |
| break; |
| case "UTF-16LE" : |
| bos.write(new byte[] { (byte) 0xFF, (byte) 0xFE }); |
| break; |
| case "UTF-32BE" : |
| bos.write(new byte[] { (byte) 0x00, (byte) 0x00, |
| (byte) 0xFE, (byte) 0xFF }); |
| break; |
| case "UTF-32LE" : |
| bos.write(new byte[] { (byte) 0xFF, (byte) 0xFE, |
| (byte) 0x00, (byte) 0x00 }); |
| } |
| |
| bos.write(XML_HEADER.getBytes(encoding)); |
| return bos.toByteArray(); |
| } |
| } |