001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.core.plugins;
021    
022    import org.apache.commons.io.FileUtils;
023    import org.sonar.api.Plugin;
024    import org.sonar.api.utils.SonarException;
025    import org.sonar.api.utils.ZipUtils;
026    import org.sonar.updatecenter.common.PluginKeyUtils;
027    import org.sonar.updatecenter.common.PluginManifest;
028    
029    import java.io.File;
030    import java.io.IOException;
031    import java.net.URL;
032    import java.net.URLClassLoader;
033    import java.util.List;
034    import java.util.zip.ZipEntry;
035    
036    public class PluginInstaller {
037    
038      public DefaultPluginMetadata installInSameLocation(File pluginFile, boolean isCore, List<File> deprecatedExtensions) {
039        return install(pluginFile, isCore, deprecatedExtensions, null);
040      }
041    
042      public DefaultPluginMetadata install(File pluginFile, boolean isCore, List<File> deprecatedExtensions, File toDir) {
043        DefaultPluginMetadata metadata = extractMetadata(pluginFile, isCore);
044        metadata.setDeprecatedExtensions(deprecatedExtensions);
045        return install(metadata, toDir);
046      }
047    
048      public DefaultPluginMetadata install(DefaultPluginMetadata metadata, File toDir) {
049        try {
050          File pluginFile = metadata.getFile();
051          File pluginBasedir = copyPlugin(metadata, toDir, pluginFile);
052          copyDependencies(metadata, pluginFile, pluginBasedir);
053          copyDeprecatedExtensions(metadata, pluginBasedir);
054    
055          return metadata;
056    
057        } catch (IOException e) {
058          throw new SonarException("Fail to install plugin: " + metadata, e);
059        }
060      }
061    
062      private File copyPlugin(DefaultPluginMetadata metadata, File toDir, File pluginFile) throws IOException {
063        File pluginBasedir;
064        if (toDir != null) {
065          pluginBasedir = toDir;
066          FileUtils.forceMkdir(pluginBasedir);
067          File targetFile = new File(pluginBasedir, pluginFile.getName());
068          FileUtils.copyFile(pluginFile, targetFile);
069          metadata.addDeployedFile(targetFile);
070        } else {
071          pluginBasedir = pluginFile.getParentFile();
072          metadata.addDeployedFile(pluginFile);
073        }
074        return pluginBasedir;
075      }
076    
077      private void copyDependencies(DefaultPluginMetadata metadata, File pluginFile, File pluginBasedir) throws IOException {
078        if (metadata.getPathsToInternalDeps().length > 0) {
079          // needs to unzip the jar
080          ZipUtils.unzip(pluginFile, pluginBasedir, new LibFilter());
081          for (String depPath : metadata.getPathsToInternalDeps()) {
082            File dependency = new File(pluginBasedir, depPath);
083            if (!dependency.isFile() || !dependency.exists()) {
084              throw new IllegalArgumentException("Dependency " + depPath + " can not be found in " + pluginFile.getName());
085            }
086            metadata.addDeployedFile(dependency);
087          }
088        }
089      }
090    
091      private void copyDeprecatedExtensions(DefaultPluginMetadata metadata, File pluginBasedir) throws IOException {
092        for (File extension : metadata.getDeprecatedExtensions()) {
093          File toFile = new File(pluginBasedir, extension.getName());
094          if (!toFile.equals(extension)) {
095            FileUtils.copyFile(extension, toFile);
096          }
097          metadata.addDeployedFile(toFile);
098        }
099      }
100    
101      private static final class LibFilter implements ZipUtils.ZipEntryFilter {
102        public boolean accept(ZipEntry entry) {
103          return entry.getName().startsWith("META-INF/lib");
104        }
105      }
106    
107      public DefaultPluginMetadata extractMetadata(File file, boolean isCore) {
108        try {
109          PluginManifest manifest = new PluginManifest(file);
110          DefaultPluginMetadata metadata = DefaultPluginMetadata.create(file);
111          metadata.setKey(manifest.getKey());
112          metadata.setName(manifest.getName());
113          metadata.setDescription(manifest.getDescription());
114          metadata.setLicense(manifest.getLicense());
115          metadata.setOrganization(manifest.getOrganization());
116          metadata.setOrganizationUrl(manifest.getOrganizationUrl());
117          metadata.setMainClass(manifest.getMainClass());
118          metadata.setVersion(manifest.getVersion());
119          metadata.setHomepage(manifest.getHomepage());
120          metadata.setPathsToInternalDeps(manifest.getDependencies());
121          metadata.setUseChildFirstClassLoader(manifest.isUseChildFirstClassLoader());
122          metadata.setBasePlugin(manifest.getBasePlugin());
123          metadata.setCore(isCore);
124          if (metadata.isOldManifest()) {
125            completeDeprecatedMetadata(metadata);
126          }
127          return metadata;
128    
129        } catch (IOException e) {
130          throw new IllegalStateException("Fail to extract plugin metadata from file: " + file, e);
131        }
132      }
133    
134      private void completeDeprecatedMetadata(DefaultPluginMetadata metadata) {
135        String mainClass = metadata.getMainClass();
136        File pluginFile = metadata.getFile();
137        try {
138          // copy file in a temp directory because Windows+Oracle JVM Classloader lock the JAR file
139          File tempFile = File.createTempFile(pluginFile.getName(), null);
140          FileUtils.copyFile(pluginFile, tempFile);
141    
142          URLClassLoader pluginClassLoader = URLClassLoader.newInstance(new URL[]{tempFile.toURI().toURL()}, getClass().getClassLoader());
143          Plugin pluginInstance = (Plugin) pluginClassLoader.loadClass(mainClass).newInstance();
144          metadata.setKey(PluginKeyUtils.sanitize(pluginInstance.getKey()));
145          metadata.setDescription(pluginInstance.getDescription());
146          metadata.setName(pluginInstance.getName());
147    
148        } catch (Exception e) {
149          throw new IllegalStateException("The metadata main class can not be created. Plugin file=" + pluginFile.getName() + ", class=" + mainClass, e);
150        }
151      }
152    }