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- /*
- * Copyright (c) 2006-2011 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
- package com.dmdirc.util;
-
- import com.dmdirc.logger.ErrorLevel;
- import com.dmdirc.logger.Logger;
- import com.dmdirc.plugins.PluginManager;
- import com.dmdirc.ui.themes.ThemeManager;
-
- import java.net.MalformedURLException;
- import java.net.URL;
-
- /**
- * Provides methods for building URLs to reference DMDirc resources.
- */
- public final class URLBuilder {
-
- /**
- * Creates a new instance of URLBuilder.
- */
- private URLBuilder() {
- // Shouldn't be constructed
- }
-
- /**
- * Constructs an URL pointing to the specified resource on the file system.
- *
- * @param path The path that the URL is for
- * @return An URL corresponding to the specified path, or null on failure
- */
- public static URL buildFileURL(final String path) {
- final String prefix = path.startsWith("file://") ? "" : "file://";
-
- try {
- return new URL(prefix + path);
- } catch (MalformedURLException ex) {
- Logger.appError(ErrorLevel.HIGH, "Unable to build file URL", ex);
- return null;
- }
- }
-
- /**
- * Constructs an URL pointing to the specified resource within a jar file.
- *
- * @param jarFile Path to the jar file (including scheme)
- * @param path Path to the resource within the jar file
- * @return An URL corresponding to the specified resource, or null on failure
- */
- public static URL buildJarURL(final String jarFile, final String path) {
- try {
- String url = "jar:" + buildURL(jarFile) + "!/" + path;
- if (url.startsWith("jar:file://")) {
- url = "jar:file:/" + url.substring(11);
- }
- return new URL(url);
- } catch (MalformedURLException ex) {
- Logger.appError(ErrorLevel.HIGH, "Unable to build jar URL", ex);
- return null;
- }
- }
-
- /**
- * Constructs an URL pointing to the specified resource within the DMDirc
- * project.
- *
- * @param resource The path to the resource
- * @return An URL corresponding to the specified resource
- */
- public static URL buildDMDircURL(final String resource) {
- return Thread.currentThread().getContextClassLoader().getResource(resource);
- }
-
- /**
- * Builds an URL pointing to a resource within a DMDirc theme.
- *
- * @param theme The theme which the resource is located in
- * @param path The path within the theme of the resource
- * @return An URL corresponding to the specified resource, or null on failure
- */
- public static URL buildThemeURL(final String theme, final String path) {
- return buildJarURL(ThemeManager.getThemeDirectory() + theme + ".zip", path);
- }
-
- /**
- * Builds an URL pointing to a resource within a DMDirc plugin.
- *
- * @param plugin The plugin which the resource is located in
- * @param path The path within the theme of the resource
- * @return An URL corresponding to the specified resource, or null on failure
- */
- public static URL buildPluginURL(final String plugin, final String path) {
- return buildJarURL(
- PluginManager.getPluginManager().getPluginInfoByName(plugin).getFullFilename(),
- path);
- }
-
- /**
- * Constructs an URL corresponding to the described resource.
- *
- * @param spec The resource location. May take the form of: <ul>
- * <li>dmdirc://com/dmdirc/etc/
- * <li>jar://path/to/jarfile:path/inside/jarfile
- * <li>zip://path/to/zipfile:path/inside/zipfile
- * <li>theme://theme_name:file/inside/theme
- * <li>plugin://plugin_name:file/inside/plugin
- * <li>http://server/path
- * <li>https://server/path
- * <li>[file://]/path/on/filesystem</ul>
- *
- * @return An URL corresponding to the specified resource, or null on failure
- */
- public static URL buildURL(final String spec) {
- if (spec.startsWith("dmdirc://")) {
- return buildDMDircURL(spec.substring(9));
- } else if (spec.startsWith("jar://") || spec.startsWith("zip://")) {
- final int offset = spec.indexOf(':', 6);
-
- if (offset < 0) {
- Logger.userError(ErrorLevel.LOW, "Invalid URL, must contain ':': " + spec);
- return null;
- } else {
- return buildJarURL(spec.substring(6, offset), spec.substring(offset + 1));
- }
- } else if (spec.startsWith("plugin://")) {
- final int offset = spec.indexOf(':', 8);
-
- if (offset < 0) {
- Logger.userError(ErrorLevel.LOW, "Invalid URL, must contain ':': " + spec);
- return null;
- } else {
- return buildPluginURL(spec.substring(9, offset), spec.substring(offset + 1));
- }
- } else if (spec.startsWith("theme://")) {
- final int offset = spec.indexOf(':', 8);
-
- if (offset < 0) {
- Logger.userError(ErrorLevel.LOW, "Invalid URL, must contain ':': " + spec);
- return null;
- } else {
- return buildThemeURL(spec.substring(8, offset), spec.substring(offset + 1));
- }
- } else if (spec.startsWith("http://") || spec.startsWith("https://")) {
- try {
- return new URL(spec);
- } catch (MalformedURLException ex) {
- Logger.userError(ErrorLevel.MEDIUM, "Unable to load resource", ex);
- return null;
- }
- } else {
- return buildFileURL(spec);
- }
- }
- }
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