if (CharUtil.isUrlChar(c) || c == ' ') {
                        buf.append(c);
                    } else {
                        try {
                            buf.append(URLEncoder.encode(String.valueOf(c), Constants.UTF_8));
                        } catch (final UnsupportedEncodingException e) {
                            // NOP
                        }
                    }
                }

    }

    public void test_encode() {
        assertNull(permissionHelper.encode(null));
        assertNull(permissionHelper.encode(""));
        assertNull(permissionHelper.encode(" "));
        assertNull(permissionHelper.encode("{user}"));
        assertNull(permissionHelper.encode("{role}"));
        assertNull(permissionHelper.encode("{group}"));
        assertNull(permissionHelper.encode("(allow)"));

                            append = true;
                        }
                        locationBuf.append(urlCodec.encode(key, encoding));
                        locationBuf.append('=');
                        locationBuf.append(urlCodec.encode(value, encoding));
                    }

                }
                final HttpServletResponse res = (HttpServletResponse) response;

	redirectPage.append("/error/badrequest/");
	response.sendRedirect(redirectPage.toString());
} else if(!"badAuth".equals(type)) {
	redirectPage.append("/error/notfound/?url=");
	redirectPage.append(java.net.URLEncoder.encode(requestUri , "UTF-8"));
	response.sendRedirect(redirectPage.toString());
}

public class PathMappingHelper extends AbstractConfigHelper {

    private static final Logger logger = LogManager.getLogger(PathMappingHelper.class);

    protected static final String FUNCTION_ENCODEURL_MATCHER = "function:encodeUrl";

    protected static final String GROOVY_MATCHER = "groovy:";

    protected final Map<String, List<PathMapping>> pathMappingMap = new HashMap<>();

	redirectPage.append("/error/badrequest/");
	response.sendRedirect(redirectPage.toString());
} else if(!"badAuth".equals(type)) {
	redirectPage.append("/error/notfound/?url=");
	redirectPage.append(java.net.URLEncoder.encode(requestUri , "UTF-8"));
	response.sendRedirect(redirectPage.toString());
}

    private static final String ESCAPED_QUOTE = "\"\"";

    private KuromojiCSVUtil() {
    } // no instance!!!

    /**
     * Parse CSV line
     *
     * @param line
     *            line containing csv-encoded data
     * @return Array of values
     */
    public static String[] parse(final String line) {
        boolean insideQuote = false;
        final ArrayList<String> result = new ArrayList<>();

        for (final char c : url.toCharArray()) {
            if (CharUtil.isUrlChar(c)) {
                buf.append(c);
            } else {
                try {
                    buf.append(URLEncoder.encode(String.valueOf(c), enc));
                } catch (final UnsupportedEncodingException e) {
                    buf.append(c);
                }
            }
        }
        return buf.toString();
    }

    </jsp:include>

    <div class="content-wrapper position-relative">
        <iframe class="w-100 h-100 position-absolute" frameborder="0"
                src="<%=request.getContextPath()%>${serverPath}<%= response.encodeURL("/_plugin/kopf/") %>"
                seamless></iframe>
    </div>

    <jsp:include page="/WEB-INF/view/common/admin/footer.jsp"></jsp:include>
</div>

        url = "file:/" + encodeUrl("ホーム") + "/user";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file:/c:/" + encodeUrl("ホーム") + "/user";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file:////" + encodeUrl("サーバー") + "/home/user";
        exp = "サーバー";