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/*
* Copyright (c) 2007, 2015, 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.
*/
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.util.Arrays;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
/*
* @test
* @bug 8048604
* @summary This test verifies the assertion "The chaining feature of
* Filter streams should be supported." for feature "CipherInputStream &
* CipherOutputStream"
* @run main CICOChainingTest
*/
public class CICOChainingTest {
/**
* Plain text length.
*/
private static final int PLAIN_TEXT_LENGTH = 200;
public static void main(String argv[]) throws Exception {
CICOChainingTest test = new CICOChainingTest();
test.chainTest(true);
test.chainTest(false);
}
/**
* Chain CipherInputStream/CipherOutputStream with other stream, encrypt
* the text and decrypt it, recovered text is supposed to be same as
* original text.
* @param useInt true if read byte by byte false if read with buffer.
* @throws IOException any I/O operation failed.
*/
public void chainTest(boolean useInt) throws IOException {
byte[] plainText = TestUtilities.generateBytes(PLAIN_TEXT_LENGTH);
byte[] recoveredText = new byte[plainText.length];
// Do initialization
try (MyNullCipherInputStream ciInput1 = new MyNullCipherInputStream(
new ByteArrayInputStream(plainText));
PipedOutputStream piOut = new PipedOutputStream();
MyNullCipherInputStream ciInput2 = new MyNullCipherInputStream(
new PipedInputStream(piOut));
MyNullCipherOutputStream ciOut = new MyNullCipherOutputStream(
piOut);) {
if (useInt) {
int buffer = ciInput1.read();
while (buffer != -1) {
piOut.write(buffer);
buffer = ciInput1.read();
}
} else {
byte[] buffer = new byte[20];
int len = ciInput1.read(buffer);
while (len != -1) {
ciOut.write(buffer, 0, len);
len = ciInput1.read(buffer);
}
}
ciOut.flush();
piOut.flush();
// Get the output
ciInput2.read(recoveredText);
if (ciInput2.available() > 0) {
throw new RuntimeException("Expected no data from ciInput2, but"
+ " ciInput2.available() = " + ciInput2.available());
}
}
// Verify output is same to input.
if (!Arrays.equals(plainText, recoveredText)) {
throw new RuntimeException("plainText:" + new String(plainText)
+ " recoveredText:" + new String(recoveredText)
+ " Test failed due to result compare fail");
}
}
}
class MyNullCipherInputStream extends CipherInputStream {
public MyNullCipherInputStream(InputStream is) {
super(is);
}
}
class MyNullCipherOutputStream extends CipherOutputStream {
public MyNullCipherOutputStream(OutputStream os) {
super(os);
}
}
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