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 binDir;
  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.binDir = root.resolve("bin");
  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     }
 100 
 101     public LinuxAppImageBuilder(String appName, Path imageOutDir)
 102             throws IOException {
 103         super(null, imageOutDir.resolve(appName));
 104 
 105         Objects.requireNonNull(imageOutDir);
 106 
 107         this.root = imageOutDir.resolve(appName);
 108         this.appDir = null;
 109         this.appModsDir = null;
 110         this.runtimeDir = null;
 111         this.binDir = null;
 112         this.mdir = null;
 113         this.params = new HashMap<>();
 114     }
 115 
 116     private Path destFile(String dir, String filename) {
 117         return runtimeDir.resolve(dir).resolve(filename);
 118     }
 119 
 120     private void writeEntry(InputStream in, Path dstFile) throws IOException {
 121         Files.createDirectories(dstFile.getParent());
 122         Files.copy(in, dstFile);
 123     }
 124 
 125     private void writeSymEntry(Path dstFile, Path target) throws IOException {
 126         Files.createDirectories(dstFile.getParent());
 127         Files.createLink(dstFile, target);
 128     }
 129 
 130     /**
 131      * chmod ugo+x file
 132      */
 133     private void setExecutable(Path file) {
 134         try {
 135             Set<PosixFilePermission> perms =
 136                     Files.getPosixFilePermissions(file);
 137             perms.add(PosixFilePermission.OWNER_EXECUTE);
 138             perms.add(PosixFilePermission.GROUP_EXECUTE);
 139             perms.add(PosixFilePermission.OTHERS_EXECUTE);
 140             Files.setPosixFilePermissions(file, perms);
 141         } catch (IOException ioe) {
 142             throw new UncheckedIOException(ioe);
 143         }
 144     }
 145 
 146     // it is static for the sake of sharing with "installer" bundlers
 147     // that may skip calls to validate/bundle in this class!
 148     public static File getRootDir(File outDir,
 149             Map<String, ? super Object> params) {
 150         return new File(outDir, APP_NAME.fetchFrom(params));
 151     }
 152 
 153     public static String getLauncherRelativePath(
 154             Map<String, ? super Object> params) {
 155         return "bin" + File.separator + APP_NAME.fetchFrom(params);
 156     }
 157 
 158     public static String getLauncherName(Map<String, ? super Object> params) {
 159         return APP_NAME.fetchFrom(params);
 160     }
 161 
 162     public static String getLauncherCfgName(
 163             Map<String, ? super Object> params) {
 164         return "app" + File.separator + APP_NAME.fetchFrom(params) + ".cfg";
 165     }
 166 
 167     @Override
 168     public Path getAppDir() {
 169         return appDir;
 170     }
 171 
 172     @Override
 173     public Path getAppModsDir() {
 174         return appModsDir;
 175     }
 176 
 177     @Override
 178     public void prepareApplicationFiles() throws IOException {
 179         Map<String, ? super Object> originalParams = new HashMap<>(params);
 180 
 181         try {
 182             IOUtils.writableOutputDir(root);
 183             IOUtils.writableOutputDir(binDir);
 184         } catch (PackagerException pe) {
 185             throw new RuntimeException(pe);
 186         }
 187 
 188         // create the primary launcher
 189         createLauncherForEntryPoint(params);
 190 
 191         // Copy library to the launcher folder
 192         try (InputStream is_lib = getResourceAsStream(LIBRARY_NAME)) {
 193             writeEntry(is_lib, binDir.resolve(LIBRARY_NAME));
 194         }
 195 
 196         // create the additional launchers, if any
 197         List<Map<String, ? super Object>> entryPoints
 198                 = StandardBundlerParam.ADD_LAUNCHERS.fetchFrom(params);
 199         for (Map<String, ? super Object> entryPoint : entryPoints) {
 200             createLauncherForEntryPoint(
 201                     AddLauncherArguments.merge(originalParams, entryPoint));
 202         }
 203 
 204         // Copy class path entries to Java folder
 205         copyApplication();
 206 
 207         // Copy icon to Resources folder
 208         copyIcon();
 209     }
 210 
 211     @Override
 212     public void prepareJreFiles() throws IOException {}
 213 
 214     private void createLauncherForEntryPoint(
 215             Map<String, ? super Object> params) throws IOException {
 216         // Copy executable to Linux folder
 217         Path executableFile = binDir.resolve(getLauncherName(params));
 218         try (InputStream is_launcher =
 219                 getResourceAsStream("jpackageapplauncher")) {
 220             writeEntry(is_launcher, executableFile);
 221         }
 222 
 223         executableFile.toFile().setExecutable(true, false);
 224         executableFile.toFile().setWritable(true, true);
 225 
 226         writeCfgFile(params, root.resolve(getLauncherCfgName(params)).toFile(),
 227                 "$APPDIR/runtime");
 228     }
 229 
 230     private void copyIcon() throws IOException {
 231         File icon = ICON_PNG.fetchFrom(params);
 232         if (icon != null) {
 233             File iconTarget = new File(binDir.toFile(),
 234                     APP_NAME.fetchFrom(params) + ".png");
 235             IOUtils.copyFile(icon, iconTarget);
 236         }
 237     }
 238 
 239     private void copyApplication() throws IOException {
 240         for (RelativeFileSet appResources :
 241                 APP_RESOURCES_LIST.fetchFrom(params)) {
 242             if (appResources == null) {
 243                 throw new RuntimeException("Null app resources?");
 244             }
 245             File srcdir = appResources.getBaseDirectory();
 246             for (String fname : appResources.getIncludedFiles()) {
 247                 copyEntry(appDir, srcdir, fname);
 248             }
 249         }
 250     }
 251 
 252 }