001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.documentlibrary.antivirus;
016    
017    import java.io.File;
018    
019    /**
020     * @author Michael C. Han
021     */
022    public class ClamAntivirusScannerImpl extends BaseFileAntivirusScanner {
023    
024            @Override
025            public void scan(File file) throws AntivirusScannerException {
026                    Process process = null;
027    
028                    try {
029                            ProcessBuilder processBuilder = new ProcessBuilder(
030                                    "clamscan", "--stdout", "--no-summary", file.getAbsolutePath());
031    
032                            processBuilder.redirectErrorStream(true);
033    
034                            process = processBuilder.start();
035    
036                            process.waitFor();
037    
038                            int exitValue = process.exitValue();
039    
040                            if (exitValue == 1) {
041                                    throw new AntivirusScannerException(
042                                            "Virus detected in " + file.getAbsolutePath(),
043                                            AntivirusScannerException.VIRUS_DETECTED);
044                            }
045                            else if (exitValue >= 2) {
046                                    throw new AntivirusScannerException(
047                                            AntivirusScannerException.PROCESS_FAILURE);
048                            }
049                    }
050                    catch (AntivirusScannerException ase) {
051                            throw ase;
052                    }
053                    catch (Exception e) {
054                            throw new AntivirusScannerException(
055                                    AntivirusScannerException.PROCESS_FAILURE);
056                    }
057                    finally {
058                            if (process != null) {
059                                    process.destroy();
060                            }
061                    }
062            }
063    
064    }