1 /*
2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package javafx.css.converter;
27
28 import javafx.application.Application;
29 import javafx.css.ParsedValue;
30 import javafx.css.StyleConverter;
31 import javafx.scene.text.Font;
32 import sun.util.logging.PlatformLogger;
33
34 import java.net.MalformedURLException;
35 import java.net.URI;
36 import java.net.URISyntaxException;
37 import java.net.URL;
38 import java.security.AccessController;
39 import java.security.CodeSource;
40 import java.security.PrivilegedActionException;
41 import java.security.PrivilegedExceptionAction;
42 import java.security.ProtectionDomain;
43
44 /**
45 * Convert url("<path>") a URL string resolved relative to the location of the stylesheet.
46 *
47 * @since 9
48 */
49 public final class URLConverter extends StyleConverter<ParsedValue[], String> {
50
51 // lazy, thread-safe instatiation
52 private static class Holder {
53 static final URLConverter INSTANCE = new URLConverter();
54 static final SequenceConverter SEQUENCE_INSTANCE = new SequenceConverter();
55 }
56
57 public static StyleConverter<ParsedValue[], String> getInstance() {
58 return Holder.INSTANCE;
59 }
60
61 private URLConverter() {
62 super();
63 }
64
65 @Override
66 public String convert(ParsedValue<ParsedValue[], String> value, Font font) {
67
68 String url = null;
69
70 ParsedValue[] values = value.getValue();
71
72 String resource = values.length > 0 ? StringConverter.getInstance().convert(values[0], font) : null;
73
74 if (resource != null && resource.trim().isEmpty() == false) {
75
76 if (resource.startsWith("url(")) {
77 resource = com.sun.javafx.util.Utils.stripQuotes(resource.substring(4, resource.length() - 1));
78 } else {
79 resource = com.sun.javafx.util.Utils.stripQuotes(resource);
80 }
81
82 String stylesheetURL = values.length > 1 && values[1] != null ? (String)values[1].getValue() : null;
83 URL resolvedURL = resolve(stylesheetURL, resource);
84
85 if (resolvedURL != null) url = resolvedURL.toExternalForm();
86 }
87
88 return url;
89 }
90
91 // package for testing
92 URL resolve(String stylesheetUrl, String resource) {
93
94
95 final String resourcePath = (resource != null) ? resource.trim() : null;
96 if (resourcePath == null || resourcePath.isEmpty()) return null;
97
98 try {
99
100 // Note: the same code (pretty much) also appears in StyleManager
101
102 // if stylesheetUri is null, then we're dealing with an in-line style.
103 // If there is no scheme part, then the url is interpreted as being relative to the application's class-loader.
104 URI resourceUri = new URI(resourcePath);
105
106 if (resourceUri.isAbsolute()) {
107 return resourceUri.toURL();
108 }
109
110 URL rtJarUrl = resolveRuntimeImport(resourceUri);
111 if (rtJarUrl != null) {
112 return rtJarUrl;
113 }
114
115 final String path = resourceUri.getPath();
116 if (path.startsWith("/")) {
117 final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
118 return contextClassLoader.getResource(path.substring(1));
119 }
120
121 final String stylesheetPath = (stylesheetUrl != null) ? stylesheetUrl.trim() : null;
122
123 if (stylesheetPath != null && stylesheetPath.isEmpty() == false) {
124
125 URI stylesheetUri = new URI(stylesheetPath);
126
127 if (stylesheetUri.isOpaque() == false) {
128
129 URI resolved = stylesheetUri.resolve(resourceUri);
130 return resolved.toURL();
131
132 } else {
133
134 // stylesheet URI is something like jar:file:
135 URL url = stylesheetUri.toURL();
136 return new URL(url, resourceUri.getPath());
137 }
138 }
139
140
141 // URL doesn't have scheme or stylesheetUrl is null
142 final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
143 return contextClassLoader.getResource(path);
144
145
146 } catch (final MalformedURLException|URISyntaxException e) {
147 PlatformLogger cssLogger = com.sun.javafx.util.Logging.getCSSLogger();
148 if (cssLogger.isLoggable(PlatformLogger.Level.WARNING)) {
149 cssLogger.warning(e.getLocalizedMessage());
150 }
151
152 return null;
153 }
154
155 }
156
157
158 //
159 // Resolve a path from an @import that implies jfxrt.jar,
160 // e.g., @import "com/sun/javafx/scene/control/skin/modena/modena.css".
161 //
162 // See also StyleSheet#loadStylesheet(String)
163 //
164 private URL resolveRuntimeImport(final URI resourceUri) {
165
166
167 final String path = resourceUri.getPath();
168 final String resourcePath = path.startsWith("/") ? path.substring(1) : path;
169
170 if ((resourcePath.startsWith("com/sun/javafx/scene/control/skin/modena/") ||
171 resourcePath.startsWith("com/sun/javafx/scene/control/skin/caspian/")) &&
172 (resourcePath.endsWith(".css") || resourcePath.endsWith(".bss"))) {
173
174 final SecurityManager sm = System.getSecurityManager();
175 if (sm == null) {
176 // If the SecurityManager is not null, then just look up the resource on the class-path.
177 // If there is a SecurityManager, the URLClassPath getResource call will return null,
178 // so fall through and create a URL from the code-source URI
179 final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
180 final URL resolved = contextClassLoader.getResource(resourcePath);
181 return resolved;
182 }
183
184 // check whether the path is file from our runtime jar
185 try {
186 final URL rtJarURL = AccessController.doPrivileged((PrivilegedExceptionAction<URL>) () -> {
187 // getProtectionDomain either throws a SecurityException or returns a non-null value
188 final ProtectionDomain protectionDomain = Application.class.getProtectionDomain();
189 // If we're running with a SecurityManager, then the ProtectionDomain will have a CodeSource
190 final CodeSource codeSource = protectionDomain.getCodeSource();
191 // The CodeSource location will be our runtime jar
192 return codeSource.getLocation();
193 });
194
195 final URI rtJarURI = rtJarURL.toURI();
196
197 String scheme = rtJarURI.getScheme();
198 String rtJarPath = rtJarURI.getPath();
199
200 //
201 // Just because we're running with a SecurityManager doesn't mean the jfxrt jar path is
202 // a jar: URL. But the code in StyleManager wants it to be. So if we have
203 // file:/blah/lib/jfxrt.jar make it jar:file:/blah/lib/jfxrt.jar!/
204 //
205 // If the path doesn't end with .jar, then we are just dealing with a normal file: path
206 //
207 if ("file".equals(scheme) && rtJarPath.endsWith(".jar")) {
208 if ("file".equals(scheme)) {
209 scheme = "jar:file";
210 rtJarPath = rtJarPath.concat("!/");
211 }
212 }
213 rtJarPath = rtJarPath.concat(resourcePath);
214
215 final String rtJarUserInfo = rtJarURI.getUserInfo();
216 final String rtJarHost = rtJarURI.getHost();
217 final int rtJarPort = rtJarURI.getPort();
218
219 //
220 // Put together a new URI from the pieces of rtJarURI. We cannot use resolve here since
221 // the scheme and path may have been munged.
222 //
223 URI resolved = new URI(scheme, rtJarUserInfo, rtJarHost, rtJarPort, rtJarPath, null, null);
224 return resolved.toURL();
225
226 } catch (URISyntaxException | MalformedURLException | PrivilegedActionException ignored) {
227 // Allow this method to return null so the caller will try to further resolve the path.
228 // If nothing else, an error message will result when the converted URL is consumed.
229 }
230 }
231 return null;
232 }
233
234 @Override
235 public String toString() {
236 return "URLType";
237 }
238
239 public static final class SequenceConverter extends StyleConverter<ParsedValue<ParsedValue[], String>[], String[]> {
240
241 public static SequenceConverter getInstance() {
242 return Holder.SEQUENCE_INSTANCE;
243 }
244
245 private SequenceConverter() {
246 super();
247 }
248
249 @Override
250 public String[] convert(ParsedValue<ParsedValue<ParsedValue[], String>[], String[]> value, Font font) {
251 ParsedValue<ParsedValue[], String>[] layers = value.getValue();
252 String[] urls = new String[layers.length];
253 for (int layer = 0; layer < layers.length; layer++) {
254 urls[layer] = URLConverter.getInstance().convert(layers[layer], font);
255 }
256 return urls;
257 }
258
259 @Override
260 public String toString() {
261 return "URLSeqType";
262 }
263 }
264
265 }