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/*
* Copyright (c) 2009, 2010, 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 CachePermissionsTest false w.policy
* @run main/othervm CachePermissionsTest false rw.policy
* @run main/othervm CachePermissionsTest true rwd.policy
*/
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"));
if (args.length > 1) {
String testsrc = System.getProperty("test.src", ".");
String policy = testsrc + File.separator + args[1];
System.out.println("Policy file: " + policy);
System.setProperty("java.security.policy", policy);
System.out.println("Install security manager...");
System.setSecurityManager(new SecurityManager());
}
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);
}
}
}
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