| /* |
| * Copyright (c) 2009, 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 6684104 |
| * @summary Test verifies that ImageIO checks all permissions required for |
| * the file cache usage: |
| * |
| * no policy file: No security restrictions. |
| * Expected result: ImageIO creates file-cached stream. |
| * |
| * w.policy: the case when we have read and write permissions |
| * for java.io.temp directory but have only write permission |
| * for a temp file. |
| * Expected result: ImageIO create a memory-cached stream |
| * image output stream. |
| * |
| * rw.policy: the case when we have read and write permissions |
| * for java.io.temp directory but have only read and write |
| * permission for a temp cache file. |
| * Expected result: ImageIO creates a memory-cached stream |
| * because temporary cache file can not be deleted. |
| * |
| * rwd.policy: the case when we have read and write permissions |
| * for java.io.temp directory and have all required permissions |
| * (read, write, and delete) for a temporary cache file. |
| * Expected result: ImageIO creates file-cached stream. |
| * |
| * -Djava.security.debug=access can be used to verify file permissions. |
| * |
| * @run main CachePermissionsTest true |
| * @run main/othervm/policy=w.policy CachePermissionsTest false |
| * @run main/othervm/policy=rw.policy CachePermissionsTest false |
| * @run main/othervm/policy=rwd.policy CachePermissionsTest true |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.ByteArrayOutputStream; |
| import javax.imageio.stream.ImageOutputStream; |
| |
| import javax.imageio.ImageIO; |
| |
| |
| public class CachePermissionsTest { |
| public static void main(String[] args) { |
| boolean isFileCacheExpected = |
| Boolean.valueOf(args[0]).booleanValue(); |
| System.out.println("Is file cache expected: " + isFileCacheExpected); |
| |
| ImageIO.setUseCache(true); |
| |
| System.out.println("java.io.tmpdir is " + System.getProperty("java.io.tmpdir")); |
| |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| |
| try { |
| ImageOutputStream ios = ImageIO.createImageOutputStream(baos); |
| |
| boolean isFileCache = ios.isCachedFile(); |
| System.out.println("Is file cache used: " + isFileCache); |
| |
| if (isFileCache !=isFileCacheExpected) { |
| System.out.println("WARNING: file chace usage is not as expected!"); |
| } |
| |
| System.out.println("Verify data writing..."); |
| for (int i = 0; i < 8192; i++) { |
| ios.writeInt(i); |
| } |
| |
| System.out.println("Verify data reading..."); |
| ios.seek(0L); |
| |
| for (int i = 0; i < 8192; i++) { |
| int j = ios.readInt(); |
| if (i != j) { |
| throw new RuntimeException("Wrong data in the stream " + j + " instead of " + i); |
| } |
| } |
| |
| System.out.println("Verify stream closing..."); |
| ios.close(); |
| } catch (IOException e) { |
| /* |
| * Something went wrong? |
| */ |
| throw new RuntimeException("Test FAILED.", e); |
| } catch (SecurityException e) { |
| /* |
| * We do not expect security execptions here: |
| * we there are any security restrition, ImageIO |
| * should swith to memory-cached streams, instead |
| * of using file cache. |
| */ |
| throw new RuntimeException("Test FAILED.", e); |
| } |
| } |
| } |