com.bstek.dorado.util.PathUtils.java Source code

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Here is the source code for com.bstek.dorado.util.PathUtils.java

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/*
 * This file is part of Dorado 7.x (http://dorado7.bsdn.org).
 * 
 * Copyright (c) 2002-2012 BSTEK Corp. All rights reserved.
 * 
 * This file is dual-licensed under the AGPLv3 (http://www.gnu.org/licenses/agpl-3.0.html) 
 * and BSDN commercial (http://www.bsdn.org/licenses) licenses.
 * 
 * If you are unsure which license is appropriate for your use, please contact the sales department
 * at http://www.bstek.com/contact.
 */

package com.bstek.dorado.util;

import org.apache.commons.lang.StringUtils;
import org.springframework.util.AntPathMatcher;
import org.springframework.util.PathMatcher;

/**
 * ??
 * 
 * @author Benny Bao (mailto:benny.bao@bstek.com)
 * @since Jan 18, 2008
 */
public abstract class PathUtils {
    public static final char PATH_DELIM = '/';

    private static PathMatcher matcher = new AntPathMatcher();

    /**
     * ????
     * 
     * @param pattern
     *            ??
     * @param text
     *            ?
     * @return ??
     */
    public static boolean match(String pattern, String text) {
        return (StringUtils.isNotEmpty(text)) ? matcher.match(pattern, text) : false;
    }

    public static String concatPath(String... paths) {
        StringBuffer result = new StringBuffer();
        for (String path : paths) {
            if (StringUtils.isEmpty(path)) {
                continue;
            }
            if (result.length() > 0) {
                boolean endsWithDelim = (result.charAt(result.length() - 1) == PATH_DELIM);
                boolean startsWithDelim = (path.charAt(0) == PATH_DELIM);
                if (endsWithDelim) {
                    if (startsWithDelim) {
                        result.setLength(result.length() - 1);
                    }
                } else if (!startsWithDelim)
                    result.append(PATH_DELIM);
            }
            result.append(path);
        }
        return result.toString();
    }

    public static boolean isSafePath(String path) {
        boolean dangerous = (path.contains("..") || StringUtils.containsAny(path, ",: \n\r"));
        return !dangerous;
    }
}