0N/A/*
2362N/A * Copyright (c) 1998, 2004, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage sun.security.util;
0N/A
0N/Aimport java.net.URI;
0N/Aimport java.net.URISyntaxException;
0N/Aimport java.security.GeneralSecurityException;
0N/A
0N/A/**
0N/A * A utility class to expand properties embedded in a string.
0N/A * Strings of the form ${some.property.name} are expanded to
0N/A * be the value of the property. Also, the special ${/} property
0N/A * is expanded to be the same as file.separator. If a property
0N/A * is not set, a GeneralSecurityException will be thrown.
0N/A *
0N/A * @author Roland Schemers
0N/A */
0N/Apublic class PropertyExpander {
0N/A
0N/A
0N/A public static class ExpandException extends GeneralSecurityException {
0N/A
0N/A private static final long serialVersionUID = -7941948581406161702L;
0N/A
0N/A public ExpandException(String msg) {
0N/A super(msg);
0N/A }
0N/A }
0N/A
0N/A public static String expand(String value)
0N/A throws ExpandException
0N/A {
0N/A return expand(value, false);
0N/A }
0N/A
0N/A public static String expand(String value, boolean encodeURL)
0N/A throws ExpandException
0N/A {
0N/A if (value == null)
0N/A return null;
0N/A
0N/A int p = value.indexOf("${", 0);
0N/A
0N/A // no special characters
0N/A if (p == -1) return value;
0N/A
0N/A StringBuffer sb = new StringBuffer(value.length());
0N/A int max = value.length();
0N/A int i = 0; // index of last character we copied
0N/A
0N/A scanner:
0N/A while (p < max) {
0N/A if (p > i) {
0N/A // copy in anything before the special stuff
0N/A sb.append(value.substring(i, p));
0N/A i = p;
0N/A }
0N/A int pe = p+2;
0N/A
0N/A // do not expand ${{ ... }}
0N/A if (pe < max && value.charAt(pe) == '{') {
0N/A pe = value.indexOf("}}", pe);
0N/A if (pe == -1 || pe+2 == max) {
0N/A // append remaining chars
0N/A sb.append(value.substring(p));
0N/A break scanner;
0N/A } else {
0N/A // append as normal text
0N/A pe++;
0N/A sb.append(value.substring(p, pe+1));
0N/A }
0N/A } else {
0N/A while ((pe < max) && (value.charAt(pe) != '}')) {
0N/A pe++;
0N/A }
0N/A if (pe == max) {
0N/A // no matching '}' found, just add in as normal text
0N/A sb.append(value.substring(p, pe));
0N/A break scanner;
0N/A }
0N/A String prop = value.substring(p+2, pe);
0N/A if (prop.equals("/")) {
0N/A sb.append(java.io.File.separatorChar);
0N/A } else {
0N/A String val = System.getProperty(prop);
0N/A if (val != null) {
0N/A if (encodeURL) {
0N/A // encode 'val' unless it's an absolute URI
0N/A // at the beginning of the string buffer
0N/A try {
0N/A if (sb.length() > 0 ||
0N/A !(new URI(val)).isAbsolute()) {
0N/A val = sun.net.www.ParseUtil.encodePath(val);
0N/A }
0N/A } catch (URISyntaxException use) {
0N/A val = sun.net.www.ParseUtil.encodePath(val);
0N/A }
0N/A }
0N/A sb.append(val);
0N/A } else {
0N/A throw new ExpandException(
0N/A "unable to expand property " +
0N/A prop);
0N/A }
0N/A }
0N/A }
0N/A i = pe+1;
0N/A p = value.indexOf("${", i);
0N/A if (p == -1) {
0N/A // no more to expand. copy in any extra
0N/A if (i < max) {
0N/A sb.append(value.substring(i, max));
0N/A }
0N/A // break out of loop
0N/A break scanner;
0N/A }
0N/A }
0N/A return sb.toString();
0N/A }
0N/A}