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The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications. It is designed to be used by people with a wide range of security experience and as such is ideal for developers and functional testers who are new to penetration testing. ZAP provides automated scanners as well as a set of tools that allow you to find security vulnerabilities manually.

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/*
 *
 * Paros and its related class files.
 *
 * Paros is an HTTP/HTTPS proxy for assessing web application security.
 * Copyright (C) 2003-2004 Chinotec Technologies Company
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the Clarified Artistic License
 * as published by the Free Software Foundation.
 *
 * This program 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
 * Clarified Artistic License for more details.
 *
 * You should have received a copy of the Clarified Artistic License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
// ZAP: 2013/01/03 Code Cleanup: Introduced Java7 try-with-resource statements
// ZAP: 2013/01/03 Code Cleanup: Removed redundant and generated comments
// ZAP: 2019/06/01 Normalise line endings.
// ZAP: 2019/06/05 Normalise format/style.
package org.parosproxy.paros.model;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;

public class FileCopier {

    public FileCopier() {
        super();
    }

    public void copy(File in, File out) throws IOException {
        try {
            copyNIO(in, out);
        } catch (IOException e) {
            // there is a NIO bug causing exception on the above under Debian.
            copyLegacy(in, out);
        }
    }

    public void copyLegacy(File in, File out) throws IOException {
        // CHECKSTYLE:OFF Inner assignments for try-with-resource are okay
        try (FileInputStream inStream = new FileInputStream(in);
                BufferedInputStream inBuf = new BufferedInputStream(inStream);
                FileOutputStream outStream = new FileOutputStream(out);
                BufferedOutputStream outBuf = new BufferedOutputStream(outStream); ) {
            // CHECKSTYLE:ON
            byte[] buf = new byte[10240];
            int len = 1;
            while (len > 0) {
                len = inBuf.read(buf);
                if (len > 0) {
                    outBuf.write(buf, 0, len);
                }
            }
        }
    }

    public void copyNIO(File in, File out) throws IOException {
        // CHECKSTYLE:OFF Inner assignments for try-with-resource are okay
        try (FileInputStream inStream = new FileInputStream(in);
                FileOutputStream outStream = new FileOutputStream(out);
                FileChannel sourceChannel = inStream.getChannel();
                FileChannel destinationChannel = outStream.getChannel(); ) {
            // CHECKSTYLE:ON
            destinationChannel.transferFrom(sourceChannel, 0, sourceChannel.size());
        }
    }
}