1 /*
2 * Copyright (c) 2011, 2014, 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 com.sun.javafx.css.converters;
27
28 import com.sun.javafx.css.StyleConverterImpl;
29 import javafx.application.Application;
30 import javafx.css.ParsedValue;
31 import javafx.css.StyleConverter;
32 import javafx.scene.text.Font;
33 import sun.util.logging.PlatformLogger;
34
35 import java.net.MalformedURLException;
36 import java.net.URI;
37 import java.net.URISyntaxException;
38 import java.net.URL;
39 import java.security.AccessController;
40 import java.security.CodeSource;
41 import java.security.PrivilegedActionException;
42 import java.security.PrivilegedExceptionAction;
43 import java.security.ProtectionDomain;
44
45 /**
46 * Convert url("<path>") a URL string resolved relative to the location of the stylesheet.
47 */
48 public final class URLConverter extends StyleConverterImpl<ParsedValue[], String> {
49
50 // lazy, thread-safe instatiation
51 private static class Holder {
52 static final URLConverter INSTANCE = new URLConverter();
53 static final SequenceConverter SEQUENCE_INSTANCE = new SequenceConverter();
54 }
55
56 public static StyleConverter<ParsedValue[], String> getInstance() {
57 return Holder.INSTANCE;
58 }
59
60 private URLConverter() {
61 super();
62 }
63
64 @Override
65 public String convert(ParsedValue<ParsedValue[], String> value, Font font) {
66
67 String url = null;
68
69 ParsedValue[] values = value.getValue();
70
71 String resource = values.length > 0 ? StringConverter.getInstance().convert(values[0], font) : null;
72
73 if (resource != null && resource.trim().isEmpty() == false) {
74
75 if (resource.startsWith("url(")) {
76 resource = com.sun.javafx.Utils.stripQuotes(resource.substring(4, resource.length() - 1));
77 } else {
78 resource = com.sun.javafx.Utils.stripQuotes(resource);
79 }
80
81 String stylesheetURL = values.length > 1 && values[1] != null ? (String)values[1].getValue() : null;
82 URL resolvedURL = resolve(stylesheetURL, resource);
83
84 if (resolvedURL != null) url = resolvedURL.toExternalForm();
85 }
86
87 return url;
88 }
89
90 // package for testing
91 URL resolve(String stylesheetUrl, String resource) {
92
93
94 final String resourcePath = (resource != null) ? resource.trim() : null;
95 if (resourcePath == null || resourcePath.isEmpty()) return null;
96
97 try {
98
99 // Note: the same code (pretty much) also appears in StyleManager
100
101 // if stylesheetUri is null, then we're dealing with an in-line style.
102 // If there is no scheme part, then the url is interpreted as being relative to the application's class-loader.
103 URI resourceUri = new URI(resourcePath);
104
105 if (resourceUri.isAbsolute()) {
106 return resourceUri.toURL();
107 }
108
109 URL rtJarUrl = resolveRuntimeImport(resourceUri);
110 if (rtJarUrl != null) {
111 return rtJarUrl;
112 }
113
114 final String stylesheetPath = (stylesheetUrl != null) ? stylesheetUrl.trim() : null;
115
116 if (stylesheetPath != null && stylesheetPath.isEmpty() == false) {
117
118 URI stylesheetUri = new URI(stylesheetPath);
119
120 if (stylesheetUri.isOpaque() == false) {
121
122 URI resolved = stylesheetUri.resolve(resourceUri);
123 return resolved.toURL();
124
125 } else {
126
127 // stylesheet URI is something like jar:file:
128 URL url = stylesheetUri.toURL();
129 final String path = resourceUri.getPath();
130 return new URL(url, resourceUri.getPath());
131 }
132 }
133
134
135 // URL doesn't have scheme or stylesheetUrl is null
136 final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
137 final String path = resourceUri.getPath();
138
139 URL resolved = null;
140
141 if (path.startsWith("/")) {
142 resolved = contextClassLoader.getResource(path.substring(1));
143 } else {
144 resolved = contextClassLoader.getResource(path);
145 }
146
147 return resolved;
148
149
150 } catch (final MalformedURLException|URISyntaxException e) {
151 PlatformLogger cssLogger = com.sun.javafx.Logging.getCSSLogger();
152 if (cssLogger.isLoggable(PlatformLogger.Level.WARNING)) {
153 cssLogger.warning(e.getLocalizedMessage());
154 }
155
156 return null;
157 }
158
159 }
160
161
162 //
163 // Resolve a path from an @import that implies jfxrt.jar,
164 // e.g., @import "com/sun/javafx/scene/control/skin/modena/modena.css".
165 //
166 // See also StyleSheet#loadStylesheet(String)
167 //
168 private URL resolveRuntimeImport(final URI resourceUri) {
169
170
171 final String path = resourceUri.getPath();
172 final String resourcePath = path.startsWith("/") ? path.substring(1) : path;
173
174 if ((resourcePath.startsWith("com/sun/javafx/scene/control/skin/modena/") ||
175 resourcePath.startsWith("com/sun/javafx/scene/control/skin/caspian/")) &&
176 (resourcePath.endsWith(".css") || resourcePath.endsWith(".bss"))) {
177
178 final SecurityManager sm = System.getSecurityManager();
179 if (sm == null) {
180 // If the SecurityManager is not null, then just look up the resource on the class-path.
181 // If there is a SecurityManager, the URLClassPath getResource call will return null,
182 // so fall through and create a URL from the code-source URI
183 final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
184 final URL resolved = contextClassLoader.getResource(resourcePath);
185 return resolved;
186 }
187
188 // check whether the path is file from our runtime jar
189 try {
190 final URL rtJarURL = AccessController.doPrivileged((PrivilegedExceptionAction<URL>) () -> {
191 // getProtectionDomain either throws a SecurityException or returns a non-null value
192 final ProtectionDomain protectionDomain = Application.class.getProtectionDomain();
193 // If we're running with a SecurityManager, then the ProtectionDomain will have a CodeSource
194 final CodeSource codeSource = protectionDomain.getCodeSource();
195 // The CodeSource location will be our runtime jar
196 return codeSource.getLocation();
197 });
198
199 final URI rtJarURI = rtJarURL.toURI();
200
201 String scheme = rtJarURI.getScheme();
202 String rtJarPath = rtJarURI.getPath();
203
204 //
205 // Just because we're running with a SecurityManager doesn't mean the jfxrt jar path is
206 // a jar: URL. But the code in StyleManager wants it to be. So if we have
207 // file:/blah/rt/lib/ext/jfxrt.jar make it jar:file:/blah/rt/lib/ext/jfxrt.jar!/
208 //
209 // If the path doesn't end with .jar, then we are just dealing with a normal file: path
210 //
211 if ("file".equals(scheme) && rtJarPath.endsWith(".jar")) {
212 if ("file".equals(scheme)) {
213 scheme = "jar:file";
214 rtJarPath = rtJarPath.concat("!/");
215 }
216 }
217 rtJarPath = rtJarPath.concat(resourcePath);
218
219 final String rtJarUserInfo = rtJarURI.getUserInfo();
220 final String rtJarHost = rtJarURI.getHost();
221 final int rtJarPort = rtJarURI.getPort();
222
223 //
224 // Put together a new URI from the pieces of rtJarURI. We cannot use resolve here since
225 // the scheme and path may have been munged.
226 //
227 URI resolved = new URI(scheme, rtJarUserInfo, rtJarHost, rtJarPort, rtJarPath, null, null);
228 return resolved.toURL();
229
230 } catch (URISyntaxException | MalformedURLException | PrivilegedActionException ignored) {
231 // Allow this method to return null so the caller will try to further resolve the path.
232 // If nothing else, an error message will result when the converted URL is consumed.
233 }
234 }
235 return null;
236 }
237
238 @Override
239 public String toString() {
240 return "URLType";
241 }
242
243 public static final class SequenceConverter extends StyleConverterImpl<ParsedValue<ParsedValue[], String>[], String[]> {
244
245 public static SequenceConverter getInstance() {
246 return Holder.SEQUENCE_INSTANCE;
247 }
248
249 private SequenceConverter() {
250 super();
251 }
252
253 @Override
254 public String[] convert(ParsedValue<ParsedValue<ParsedValue[], String>[], String[]> value, Font font) {
255 ParsedValue<ParsedValue[], String>[] layers = value.getValue();
256 String[] urls = new String[layers.length];
257 for (int layer = 0; layer < layers.length; layer++) {
258 urls[layer] = URLConverter.getInstance().convert(layers[layer], font);
259 }
260 return urls;
261 }
262
263 @Override
264 public String toString() {
265 return "URLSeqType";
266 }
267 }
268
269 }