1 /*
   2  * Copyright (c) 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.incubator.jpackage.internal;
  27 
  28 import java.io.IOException;
  29 import java.nio.file.*;
  30 import java.text.MessageFormat;
  31 import java.util.*;
  32 import java.util.function.Supplier;
  33 import java.util.stream.Collectors;
  34 import java.util.stream.Stream;
  35 
  36 /**
  37  * WiX tool.
  38  */
  39 public enum WixTool {
  40     Candle, Light;
  41 
  42     static final class ToolInfo {
  43         ToolInfo(Path path, String version) {
  44             this.path = path;
  45             this.version = new DottedVersion(version);
  46         }
  47 
  48         final Path path;
  49         final DottedVersion version;
  50     }
  51 
  52     static Map<WixTool, ToolInfo> toolset() throws ConfigException {
  53         Map<WixTool, ToolInfo> toolset = new HashMap<>();
  54         for (var tool : values()) {
  55             toolset.put(tool, tool.find());
  56         }
  57         return toolset;
  58     }
  59 
  60     ToolInfo find() throws ConfigException {
  61         final Path toolFileName = IOUtils.addSuffix(
  62                 Path.of(name().toLowerCase()), ".exe");
  63 
  64         String[] version = new String[1];
  65         ConfigException reason = createToolValidator(toolFileName, version).get();
  66         if (version[0] != null) {
  67             if (reason == null) {
  68                 // Found in PATH.
  69                 return new ToolInfo(toolFileName, version[0]);
  70             }
  71 
  72             // Found in PATH, but something went wrong.
  73             throw reason;
  74         }
  75 
  76         for (var dir : findWixInstallDirs()) {
  77             Path path = dir.resolve(toolFileName);
  78             if (path.toFile().exists()) {
  79                 reason = createToolValidator(path, version).get();
  80                 if (reason != null) {
  81                     throw reason;
  82                 }
  83                 return new ToolInfo(path, version[0]);
  84             }
  85         }
  86 
  87         throw reason;
  88     }
  89 
  90     private static Supplier<ConfigException> createToolValidator(Path toolPath,
  91             String[] versionCtnr) {
  92         return new ToolValidator(toolPath)
  93                 .setCommandLine("/?")
  94                 .setMinimalVersion(MINIMAL_VERSION)
  95                 .setToolNotFoundErrorHandler(
  96                         (name, ex) -> new ConfigException(
  97                                 I18N.getString("error.no-wix-tools"),
  98                                 I18N.getString("error.no-wix-tools.advice")))
  99                 .setToolOldVersionErrorHandler(
 100                         (name, version) -> new ConfigException(
 101                                 MessageFormat.format(I18N.getString(
 102                                         "message.wrong-tool-version"), name,
 103                                         version, MINIMAL_VERSION),
 104                                 I18N.getString("error.no-wix-tools.advice")))
 105                 .setVersionParser(output -> {
 106                     versionCtnr[0] = "";
 107                     String firstLineOfOutput = output.findFirst().orElse("");
 108                     int separatorIdx = firstLineOfOutput.lastIndexOf(' ');
 109                     if (separatorIdx == -1) {
 110                         return null;
 111                     }
 112                     versionCtnr[0] = firstLineOfOutput.substring(separatorIdx + 1);
 113                     return versionCtnr[0];
 114                 })::validate;
 115     }
 116 
 117     private final static DottedVersion MINIMAL_VERSION = DottedVersion.lazy("3.0");
 118 
 119     static Path getSystemDir(String envVar, String knownDir) {
 120         return Optional
 121                 .ofNullable(getEnvVariableAsPath(envVar))
 122                 .orElseGet(() -> Optional
 123                         .ofNullable(getEnvVariableAsPath("SystemDrive"))
 124                         .orElseGet(() -> Path.of("C:")).resolve(knownDir));
 125     }
 126 
 127     private static Path getEnvVariableAsPath(String envVar) {
 128         String path = System.getenv(envVar);
 129         if (path != null) {
 130             try {
 131                 return Path.of(path);
 132             } catch (InvalidPathException ex) {
 133                 Log.error(MessageFormat.format(I18N.getString(
 134                         "error.invalid-envvar"), envVar));
 135             }
 136         }
 137         return null;
 138     }
 139 
 140     private static List<Path> findWixInstallDirs() {
 141         PathMatcher wixInstallDirMatcher = FileSystems.getDefault().getPathMatcher(
 142                 "glob:WiX Toolset v*");
 143 
 144         Path programFiles = getSystemDir("ProgramFiles", "\\Program Files");
 145         Path programFilesX86 = getSystemDir("ProgramFiles(x86)",
 146                 "\\Program Files (x86)");
 147 
 148         // Returns list of WiX install directories ordered by WiX version number.
 149         // Newer versions go first.
 150         return Stream.of(programFiles, programFilesX86).map(path -> {
 151             List<Path> result;
 152             try (var paths = Files.walk(path, 1)) {
 153                 result = paths.collect(Collectors.toList());
 154             } catch (IOException ex) {
 155                 Log.verbose(ex);
 156                 result = Collections.emptyList();
 157             }
 158             return result;
 159         }).flatMap(List::stream)
 160         .filter(path -> wixInstallDirMatcher.matches(path.getFileName()))
 161         .sorted(Comparator.comparing(Path::getFileName).reversed())
 162         .map(path -> path.resolve("bin"))
 163         .collect(Collectors.toList());
 164     }
 165 }