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 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.util.Utils.stripQuotes(resource.substring(4, resource.length() - 1));
77 } else {
78 resource = com.sun.javafx.util.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 path = resourceUri.getPath();
115 if (path.startsWith("/")) {
116 final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
117 return contextClassLoader.getResource(path.substring(1));
118 }
119
120 final String stylesheetPath = (stylesheetUrl != null) ? stylesheetUrl.trim() : null;
121
122 if (stylesheetPath != null && stylesheetPath.isEmpty() == false) {
123
124 URI stylesheetUri = new URI(stylesheetPath);
125
126 if (stylesheetUri.isOpaque() == false) {
127
128 URI resolved = stylesheetUri.resolve(resourceUri);
129 return resolved.toURL();
130
131 } else {
132
133 // stylesheet URI is something like jar:file:
134 URL url = stylesheetUri.toURL();
135 return new URL(url, resourceUri.getPath());
136 }
137 }
138
139
140 // URL doesn't have scheme or stylesheetUrl is null
141 final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
142 return contextClassLoader.getResource(path);
143
144
145 } catch (final MalformedURLException|URISyntaxException e) {
146 PlatformLogger cssLogger = com.sun.javafx.util.Logging.getCSSLogger();
147 if (cssLogger.isLoggable(PlatformLogger.Level.WARNING)) {
148 cssLogger.warning(e.getLocalizedMessage());
149 }
150
151 return null;
152 }
153
154 }
155
156
157 //
158 // Resolve a path from an @import that implies jfxrt.jar,
159 // e.g., @import "com/sun/javafx/scene/control/skin/modena/modena.css".
160 //
161 // See also StyleSheet#loadStylesheet(String)
162 //
163 private URL resolveRuntimeImport(final URI resourceUri) {
164
165
166 final String path = resourceUri.getPath();
167 final String resourcePath = path.startsWith("/") ? path.substring(1) : path;
168
169 if ((resourcePath.startsWith("com/sun/javafx/scene/control/skin/modena/") ||
170 resourcePath.startsWith("com/sun/javafx/scene/control/skin/caspian/")) &&
171 (resourcePath.endsWith(".css") || resourcePath.endsWith(".bss"))) {
172
173 final SecurityManager sm = System.getSecurityManager();
174 if (sm == null) {
175 // If the SecurityManager is not null, then just look up the resource on the class-path.
176 // If there is a SecurityManager, the URLClassPath getResource call will return null,
177 // so fall through and create a URL from the code-source URI
178 final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
179 final URL resolved = contextClassLoader.getResource(resourcePath);
180 return resolved;
181 }
182
183 // check whether the path is file from our runtime jar
184 try {
185 final URL rtJarURL = AccessController.doPrivileged((PrivilegedExceptionAction<URL>) () -> {
186 // getProtectionDomain either throws a SecurityException or returns a non-null value
187 final ProtectionDomain protectionDomain = Application.class.getProtectionDomain();
188 // If we're running with a SecurityManager, then the ProtectionDomain will have a CodeSource
189 final CodeSource codeSource = protectionDomain.getCodeSource();
190 // The CodeSource location will be our runtime jar
191 return codeSource.getLocation();
192 });
193
194 final URI rtJarURI = rtJarURL.toURI();
195
196 String scheme = rtJarURI.getScheme();
197 String rtJarPath = rtJarURI.getPath();
198
199 //
200 // Just because we're running with a SecurityManager doesn't mean the jfxrt jar path is
201 // a jar: URL. But the code in StyleManager wants it to be. So if we have
202 // file:/blah/rt/lib/ext/jfxrt.jar make it jar:file:/blah/rt/lib/ext/jfxrt.jar!/
203 //
204 // If the path doesn't end with .jar, then we are just dealing with a normal file: path
205 //
206 if ("file".equals(scheme) && rtJarPath.endsWith(".jar")) {
207 if ("file".equals(scheme)) {
208 scheme = "jar:file";
209 rtJarPath = rtJarPath.concat("!/");
210 }
211 }
212 rtJarPath = rtJarPath.concat(resourcePath);
213
214 final String rtJarUserInfo = rtJarURI.getUserInfo();
215 final String rtJarHost = rtJarURI.getHost();
216 final int rtJarPort = rtJarURI.getPort();
217
218 //
219 // Put together a new URI from the pieces of rtJarURI. We cannot use resolve here since
220 // the scheme and path may have been munged.
221 //
222 URI resolved = new URI(scheme, rtJarUserInfo, rtJarHost, rtJarPort, rtJarPath, null, null);
223 return resolved.toURL();
224
225 } catch (URISyntaxException | MalformedURLException | PrivilegedActionException ignored) {
226 // Allow this method to return null so the caller will try to further resolve the path.
227 // If nothing else, an error message will result when the converted URL is consumed.
228 }
229 }
230 return null;
231 }
232
233 @Override
234 public String toString() {
235 return "URLType";
236 }
237
238 public static final class SequenceConverter extends StyleConverterImpl<ParsedValue<ParsedValue[], String>[], String[]> {
239
240 public static SequenceConverter getInstance() {
241 return Holder.SEQUENCE_INSTANCE;
242 }
243
244 private SequenceConverter() {
245 super();
246 }
247
248 @Override
249 public String[] convert(ParsedValue<ParsedValue<ParsedValue[], String>[], String[]> value, Font font) {
250 ParsedValue<ParsedValue[], String>[] layers = value.getValue();
251 String[] urls = new String[layers.length];
252 for (int layer = 0; layer < layers.length; layer++) {
253 urls[layer] = URLConverter.getInstance().convert(layers[layer], font);
254 }
255 return urls;
256 }
257
258 @Override
259 public String toString() {
260 return "URLSeqType";
261 }
262 }
263
264 }