1 /*
   2  * Copyright (c) 2015, 2019, 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 jdk.jpackage.internal;
  27 
  28 import java.io.File;
  29 import java.io.FileInputStream;
  30 import java.io.FileOutputStream;
  31 import java.io.IOException;
  32 import java.io.InputStream;
  33 import java.io.OutputStream;
  34 import java.io.OutputStreamWriter;
  35 import java.io.UncheckedIOException;
  36 import java.io.Writer;
  37 import java.nio.file.Files;
  38 import java.nio.file.Path;
  39 import java.nio.file.attribute.PosixFilePermission;
  40 import java.text.MessageFormat;
  41 import java.util.HashMap;
  42 import java.util.List;
  43 import java.util.Map;
  44 import java.util.Objects;
  45 import java.util.ResourceBundle;
  46 import java.util.Set;
  47 
  48 import static jdk.jpackage.internal.StandardBundlerParam.*;
  49 
  50 public class LinuxAppImageBuilder extends AbstractAppImageBuilder {
  51 
  52     private static final ResourceBundle I18N = ResourceBundle.getBundle(
  53         "jdk.jpackage.internal.resources.LinuxResources");
  54 
  55     private static final String LIBRARY_NAME = "libapplauncher.so";
  56 
  57     private final Path root;
  58     private final Path appDir;
  59     private final Path appModsDir;
  60     private final Path runtimeDir;
  61     private final Path resourcesDir;
  62     private final Path mdir;
  63 
  64     private final Map<String, ? super Object> params;
  65 
  66     public static final BundlerParamInfo<File> ICON_PNG =
  67             new StandardBundlerParam<>(
  68             "icon.png",
  69             File.class,
  70             params -> {
  71                 File f = ICON.fetchFrom(params);
  72                 if (f != null && !f.getName().toLowerCase().endsWith(".png")) {
  73                     Log.error(MessageFormat.format(I18N.getString(
  74                             "message.icon-not-png"), f));
  75                     return null;
  76                 }
  77                 return f;
  78             },
  79             (s, p) -> new File(s));
  80 
  81     public LinuxAppImageBuilder(Map<String, Object> config, Path imageOutDir)
  82             throws IOException {
  83         super(config,
  84                 imageOutDir.resolve(APP_NAME.fetchFrom(config) + "/runtime"));
  85 
  86         Objects.requireNonNull(imageOutDir);
  87 
  88         this.root = imageOutDir.resolve(APP_NAME.fetchFrom(config));
  89         this.appDir = root.resolve("app");
  90         this.appModsDir = appDir.resolve("mods");
  91         this.runtimeDir = root.resolve("runtime");
  92         this.resourcesDir = root.resolve("resources");
  93         this.mdir = runtimeDir.resolve("lib");
  94         this.params = new HashMap<>();
  95         config.entrySet().stream().forEach(e -> params.put(
  96                 e.getKey().toString(), e.getValue()));
  97         Files.createDirectories(appDir);
  98         Files.createDirectories(runtimeDir);
  99         Files.createDirectories(resourcesDir);
 100     }
 101 
 102     public LinuxAppImageBuilder(String appName, Path imageOutDir)
 103             throws IOException {
 104         super(null, imageOutDir.resolve(appName));
 105 
 106         Objects.requireNonNull(imageOutDir);
 107 
 108         this.root = imageOutDir.resolve(appName);
 109         this.appDir = null;
 110         this.appModsDir = null;
 111         this.runtimeDir = null;
 112         this.resourcesDir = null;
 113         this.mdir = null;
 114         this.params = new HashMap<>();
 115     }
 116 
 117     private Path destFile(String dir, String filename) {
 118         return runtimeDir.resolve(dir).resolve(filename);
 119     }
 120 
 121     private void writeEntry(InputStream in, Path dstFile) throws IOException {
 122         Files.createDirectories(dstFile.getParent());
 123         Files.copy(in, dstFile);
 124     }
 125 
 126     private void writeSymEntry(Path dstFile, Path target) throws IOException {
 127         Files.createDirectories(dstFile.getParent());
 128         Files.createLink(dstFile, target);
 129     }
 130 
 131     /**
 132      * chmod ugo+x file
 133      */
 134     private void setExecutable(Path file) {
 135         try {
 136             Set<PosixFilePermission> perms =
 137                     Files.getPosixFilePermissions(file);
 138             perms.add(PosixFilePermission.OWNER_EXECUTE);
 139             perms.add(PosixFilePermission.GROUP_EXECUTE);
 140             perms.add(PosixFilePermission.OTHERS_EXECUTE);
 141             Files.setPosixFilePermissions(file, perms);
 142         } catch (IOException ioe) {
 143             throw new UncheckedIOException(ioe);
 144         }
 145     }
 146 
 147     // it is static for the sake of sharing with "installer" bundlers
 148     // that may skip calls to validate/bundle in this class!
 149     public static File getRootDir(File outDir, Map<String, ? super Object> p) {
 150         return new File(outDir, APP_NAME.fetchFrom(p));
 151     }
 152 
 153     public static String getLauncherName(Map<String, ? super Object> p) {
 154         return APP_NAME.fetchFrom(p);
 155     }
 156 
 157     public static String getLauncherCfgName(Map<String, ? super Object> p) {
 158         return "app/" + APP_NAME.fetchFrom(p) + ".cfg";
 159     }
 160 
 161     @Override
 162     public Path getAppDir() {
 163         return appDir;
 164     }
 165 
 166     @Override
 167     public Path getAppModsDir() {
 168         return appModsDir;
 169     }
 170 
 171     @Override
 172     public void prepareApplicationFiles() throws IOException {
 173         Map<String, ? super Object> originalParams = new HashMap<>(params);
 174 
 175         // create the primary launcher
 176         createLauncherForEntryPoint(params);
 177 
 178         // Copy library to the launcher folder
 179         try (InputStream is_lib = getResourceAsStream(LIBRARY_NAME)) {
 180             writeEntry(is_lib, root.resolve(LIBRARY_NAME));
 181         }
 182 
 183         // create the additional launchers, if any
 184         List<Map<String, ? super Object>> entryPoints
 185                 = StandardBundlerParam.ADD_LAUNCHERS.fetchFrom(params);
 186         for (Map<String, ? super Object> entryPoint : entryPoints) {
 187             createLauncherForEntryPoint(
 188                     AddLauncherArguments.merge(originalParams, entryPoint));
 189         }
 190 
 191         // Copy class path entries to Java folder
 192         copyApplication();
 193 
 194         // Copy icon to Resources folder
 195         copyIcon();
 196     }
 197 
 198     @Override
 199     public void prepareJreFiles() throws IOException {}
 200 
 201     private void createLauncherForEntryPoint(Map<String, ? super Object> p)
 202             throws IOException {
 203         // Copy executable to Linux folder
 204         Path executableFile = root.resolve(getLauncherName(p));
 205         try (InputStream is_launcher =
 206                 getResourceAsStream("jpackageapplauncher")) {
 207             writeEntry(is_launcher, executableFile);
 208         }
 209 
 210         executableFile.toFile().setExecutable(true, false);
 211         executableFile.toFile().setWritable(true, true);
 212 
 213         writeCfgFile(p, root.resolve(getLauncherCfgName(p)).toFile(),
 214                 "$APPDIR/runtime");
 215     }
 216 
 217     private void copyIcon() throws IOException {
 218         File icon = ICON_PNG.fetchFrom(params);
 219         if (icon != null) {
 220             File iconTarget = new File(resourcesDir.toFile(),
 221                     APP_NAME.fetchFrom(params) + ".png");
 222             IOUtils.copyFile(icon, iconTarget);
 223         }
 224     }
 225 
 226     private void copyApplication() throws IOException {
 227         for (RelativeFileSet appResources :
 228                 APP_RESOURCES_LIST.fetchFrom(params)) {
 229             if (appResources == null) {
 230                 throw new RuntimeException("Null app resources?");
 231             }
 232             File srcdir = appResources.getBaseDirectory();
 233             for (String fname : appResources.getIncludedFiles()) {
 234                 copyEntry(appDir, srcdir, fname);
 235             }
 236         }
 237     }
 238 
 239 }