Пример #1
0
  /* (non-Javadoc)
   * @see com.izforge.izpack.installer.IUnpacker#run()
   */
  public void run() {
    addToInstances();
    try {
      //
      // Initialisations
      FileOutputStream out = null;
      ArrayList<ParsableFile> parsables = new ArrayList<ParsableFile>();
      ArrayList<ExecutableFile> executables = new ArrayList<ExecutableFile>();
      ArrayList<UpdateCheck> updatechecks = new ArrayList<UpdateCheck>();
      List packs = idata.selectedPacks;
      int npacks = packs.size();
      handler.startAction("Unpacking", npacks);
      udata = UninstallData.getInstance();
      // Custom action listener stuff --- load listeners ----
      List[] customActions = getCustomActions();
      // Custom action listener stuff --- beforePacks ----
      informListeners(customActions, InstallerListener.BEFORE_PACKS, idata, npacks, handler);
      packs = idata.selectedPacks;
      npacks = packs.size();

      // We unpack the selected packs
      for (int i = 0; i < npacks; i++) {
        // We get the pack stream
        // int n = idata.allPacks.indexOf(packs.get(i));
        Pack p = (Pack) packs.get(i);

        // evaluate condition
        if (p.hasCondition()) {
          if (rules != null) {
            if (!rules.isConditionTrue(p.getCondition())) {
              // skip pack, condition is not fullfilled.
              continue;
            }
          } else {
            // TODO: skip pack, because condition can not be checked
          }
        }

        // Custom action listener stuff --- beforePack ----
        informListeners(
            customActions, InstallerListener.BEFORE_PACK, packs.get(i), npacks, handler);
        ObjectInputStream objIn = new ObjectInputStream(getPackAsStream(p.id, p.uninstall));

        // We unpack the files
        int nfiles = objIn.readInt();

        // We get the internationalized name of the pack
        final Pack pack = ((Pack) packs.get(i));
        String stepname = pack.name; // the message to be passed to the
        // installpanel
        if (langpack != null && !(pack.id == null || "".equals(pack.id))) {

          final String name = langpack.getString(pack.id);
          if (name != null && !"".equals(name)) {
            stepname = name;
          }
        }
        handler.nextStep(stepname, i + 1, nfiles);
        for (int j = 0; j < nfiles; j++) {
          // We read the header
          PackFile pf = (PackFile) objIn.readObject();
          // TODO: reaction if condition can not be checked
          if (pf.hasCondition() && (rules != null)) {
            if (!rules.isConditionTrue(pf.getCondition())) {
              if (!pf.isBackReference()) {
                // skip, condition is not fulfilled
                objIn.skip(pf.length());
              }
              continue;
            }
          }
          if (OsConstraint.oneMatchesCurrentSystem(pf.osConstraints())) {
            // We translate & build the path
            String path = IoHelper.translatePath(pf.getTargetPath(), vs);
            File pathFile = new File(path);
            File dest = pathFile;
            if (!pf.isDirectory()) {
              dest = pathFile.getParentFile();
            }

            if (!dest.exists()) {
              // If there are custom actions which would be called
              // at
              // creating a directory, create it recursively.
              List fileListeners = customActions[customActions.length - 1];
              if (fileListeners != null && fileListeners.size() > 0) {
                mkDirsWithEnhancement(dest, pf, customActions);
              } else
              // Create it in on step.
              {
                if (!dest.mkdirs()) {
                  handler.emitError(
                      "Error creating directories",
                      "Could not create directory\n" + dest.getPath());
                  handler.stopAction();
                  this.result = false;
                  return;
                }
              }
            }

            if (pf.isDirectory()) {
              continue;
            }

            // Custom action listener stuff --- beforeFile ----
            informListeners(customActions, InstallerListener.BEFORE_FILE, pathFile, pf, null);
            // We add the path to the log,
            udata.addFile(path, pack.uninstall);

            handler.progress(j, path);

            // if this file exists and should not be overwritten,
            // check
            // what to do
            if ((pathFile.exists()) && (pf.override() != PackFile.OVERRIDE_TRUE)) {
              boolean overwritefile = false;

              // don't overwrite file if the user said so
              if (pf.override() != PackFile.OVERRIDE_FALSE) {
                if (pf.override() == PackFile.OVERRIDE_TRUE) {
                  overwritefile = true;
                } else if (pf.override() == PackFile.OVERRIDE_UPDATE) {
                  // check mtime of involved files
                  // (this is not 100% perfect, because the
                  // already existing file might
                  // still be modified but the new installed
                  // is just a bit newer; we would
                  // need the creation time of the existing
                  // file or record with which mtime
                  // it was installed...)
                  overwritefile = (pathFile.lastModified() < pf.lastModified());
                } else {
                  int def_choice = -1;

                  if (pf.override() == PackFile.OVERRIDE_ASK_FALSE) {
                    def_choice = AbstractUIHandler.ANSWER_NO;
                  }
                  if (pf.override() == PackFile.OVERRIDE_ASK_TRUE) {
                    def_choice = AbstractUIHandler.ANSWER_YES;
                  }

                  int answer =
                      handler.askQuestion(
                          idata.langpack.getString("InstallPanel.overwrite.title")
                              + " - "
                              + pathFile.getName(),
                          idata.langpack.getString("InstallPanel.overwrite.question")
                              + pathFile.getAbsolutePath(),
                          AbstractUIHandler.CHOICES_YES_NO,
                          def_choice);

                  overwritefile = (answer == AbstractUIHandler.ANSWER_YES);
                }
              }

              if (!overwritefile) {
                if (!pf.isBackReference() && !((Pack) packs.get(i)).loose) {
                  objIn.skip(pf.length());
                }
                continue;
              }
            }

            // We copy the file
            InputStream pis = objIn;
            if (pf.isBackReference()) {
              InputStream is = getPackAsStream(pf.previousPackId, pack.uninstall);
              pis = new ObjectInputStream(is);
              // must wrap for blockdata use by objectstream
              // (otherwise strange result)
              // skip on underlaying stream (for some reason not
              // possible on ObjectStream)
              is.skip(pf.offsetInPreviousPack - 4);
              // but the stream header is now already read (== 4
              // bytes)
            } else if (((Pack) packs.get(i)).loose) {
              /* Old way of doing the job by using the (absolute) sourcepath.
               * Since this is very likely to fail and does not confirm to the documentation,
               * prefer using relative path's
              pis = new FileInputStream(pf.sourcePath);
               */

              File resolvedFile = new File(getAbsolutInstallSource(), pf.getRelativeSourcePath());
              if (!resolvedFile.exists()) {
                // try alternative destination - the current working directory
                // user.dir is likely (depends on launcher type) the current directory of the
                // executable or jar-file...
                final File userDir = new File(System.getProperty("user.dir"));
                resolvedFile = new File(userDir, pf.getRelativeSourcePath());
              }
              if (resolvedFile.exists()) {
                pis = new FileInputStream(resolvedFile);
                // may have a different length & last modified than we had at compiletime, therefore
                // we have to build a new PackFile for the copy process...
                pf =
                    new PackFile(
                        resolvedFile.getParentFile(),
                        resolvedFile,
                        pf.getTargetPath(),
                        pf.osConstraints(),
                        pf.override(),
                        pf.getAdditionals());
              } else {
                // file not found
                // issue a warning (logging api pending)
                // since this file was loosely bundled, we continue with the installation.
                System.out.println(
                    "Could not find loosely bundled file: " + pf.getRelativeSourcePath());
                out.close();
                continue;
              }
            }

            if (pf.isPack200Jar()) {
              int key = objIn.readInt();
              InputStream pack200Input =
                  Unpacker.class.getResourceAsStream("/packs/pack200-" + key);
              Pack200.Unpacker unpacker = getPack200Unpacker();
              java.util.jar.JarOutputStream jarOut =
                  new java.util.jar.JarOutputStream(new FileOutputStream(pathFile));
              unpacker.unpack(pack200Input, jarOut);
              jarOut.close();
            } else {
              out = new FileOutputStream(pathFile);
              byte[] buffer = new byte[5120];
              long bytesCopied = 0;
              while (bytesCopied < pf.length()) {
                if (performInterrupted()) { // Interrupt was initiated; perform it.
                  out.close();
                  if (pis != objIn) {
                    pis.close();
                  }
                  return;
                }
                int maxBytes = (int) Math.min(pf.length() - bytesCopied, buffer.length);
                int bytesInBuffer = pis.read(buffer, 0, maxBytes);
                if (bytesInBuffer == -1) {
                  throw new IOException("Unexpected end of stream (installer corrupted?)");
                }

                out.write(buffer, 0, bytesInBuffer);

                bytesCopied += bytesInBuffer;
              }
              out.close();
            }

            if (pis != objIn) {
              pis.close();
            }

            // Set file modification time if specified
            if (pf.lastModified() >= 0) {
              pathFile.setLastModified(pf.lastModified());
            }
            // Custom action listener stuff --- afterFile ----
            informListeners(customActions, InstallerListener.AFTER_FILE, pathFile, pf, null);

          } else {
            if (!pf.isBackReference()) {
              objIn.skip(pf.length());
            }
          }
        }

        // Load information about parsable files
        int numParsables = objIn.readInt();
        for (int k = 0; k < numParsables; k++) {
          ParsableFile pf = (ParsableFile) objIn.readObject();
          if (pf.hasCondition() && (rules != null)) {
            if (!rules.isConditionTrue(pf.getCondition())) {
              // skip, condition is not fulfilled
              continue;
            }
          }
          pf.path = IoHelper.translatePath(pf.path, vs);
          parsables.add(pf);
        }

        // Load information about executable files
        int numExecutables = objIn.readInt();
        for (int k = 0; k < numExecutables; k++) {
          ExecutableFile ef = (ExecutableFile) objIn.readObject();
          if (ef.hasCondition() && (rules != null)) {
            if (!rules.isConditionTrue(ef.getCondition())) {
              // skip, condition is false
              continue;
            }
          }
          ef.path = IoHelper.translatePath(ef.path, vs);
          if (null != ef.argList && !ef.argList.isEmpty()) {
            String arg = null;
            for (int j = 0; j < ef.argList.size(); j++) {
              arg = ef.argList.get(j);
              arg = IoHelper.translatePath(arg, vs);
              ef.argList.set(j, arg);
            }
          }
          executables.add(ef);
          if (ef.executionStage == ExecutableFile.UNINSTALL) {
            udata.addExecutable(ef);
          }
        }
        // Custom action listener stuff --- uninstall data ----
        handleAdditionalUninstallData(udata, customActions);

        // Load information about updatechecks
        int numUpdateChecks = objIn.readInt();

        for (int k = 0; k < numUpdateChecks; k++) {
          UpdateCheck uc = (UpdateCheck) objIn.readObject();

          updatechecks.add(uc);
        }

        objIn.close();

        if (performInterrupted()) { // Interrupt was initiated; perform it.
          return;
        }

        // Custom action listener stuff --- afterPack ----
        informListeners(customActions, InstallerListener.AFTER_PACK, packs.get(i), i, handler);
      }

      // We use the scripts parser
      ScriptParser parser = new ScriptParser(parsables, vs);
      parser.parseFiles();
      if (performInterrupted()) { // Interrupt was initiated; perform it.
        return;
      }

      // We use the file executor
      FileExecutor executor = new FileExecutor(executables);
      if (executor.executeFiles(ExecutableFile.POSTINSTALL, handler) != 0) {
        handler.emitError("File execution failed", "The installation was not completed");
        this.result = false;
      }

      if (performInterrupted()) { // Interrupt was initiated; perform it.
        return;
      }

      // We put the uninstaller (it's not yet complete...)
      putUninstaller();

      // update checks _after_ uninstaller was put, so we don't delete it
      performUpdateChecks(updatechecks);

      if (performInterrupted()) { // Interrupt was initiated; perform it.
        return;
      }

      // Custom action listener stuff --- afterPacks ----
      informListeners(customActions, InstallerListener.AFTER_PACKS, idata, handler, null);
      if (performInterrupted()) { // Interrupt was initiated; perform it.
        return;
      }

      // write installation information
      writeInstallationInformation();

      // The end :-)
      handler.stopAction();
    } catch (Exception err) {
      // TODO: finer grained error handling with useful error messages
      handler.stopAction();
      if ("Installation cancelled".equals(err.getMessage())) {
        handler.emitNotification("Installation cancelled");
      } else {
        handler.emitError("An error occured", err.getMessage());
        err.printStackTrace();
      }
      this.result = false;
      Housekeeper.getInstance().shutDown(4);
    } finally {
      removeFromInstances();
    }
  }
Пример #2
0
  /**
   * Returns a stream to a pack, location depending on if it's web based.
   *
   * @param uninstall true if pack must be uninstalled
   * @return The stream or null if it could not be found.
   * @throws Exception Description of the Exception
   */
  private InputStream getPackAsStream(String packid, boolean uninstall) throws Exception {
    InputStream in = null;

    String webDirURL = idata.info.getWebDirURL();

    packid = "-" + packid;

    if (webDirURL == null) // local
    {
      in = Unpacker.class.getResourceAsStream("/packs/pack" + packid);
    } else
    // web based
    {
      // TODO: Look first in same directory as primary jar
      // This may include prompting for changing of media
      // TODO: download and cache them all before starting copy process

      // See compiler.Packager#getJarOutputStream for the counterpart
      String baseName = idata.info.getInstallerBase();
      String packURL = webDirURL + "/" + baseName + ".pack" + packid + ".jar";
      String tf =
          IoHelper.translatePath(idata.info.getUninstallerPath() + Unpacker.tempSubPath, vs);
      String tempfile;
      try {
        tempfile = WebRepositoryAccessor.getCachedUrl(packURL, tf);
        udata.addFile(tempfile, uninstall);
      } catch (Exception e) {
        if ("Cancelled".equals(e.getMessage())) {
          throw new InstallerException("Installation cancelled", e);
        } else {
          throw new InstallerException("Installation failed", e);
        }
      }
      URL url = new URL("jar:" + tempfile + "!/packs/pack" + packid);

      // URL url = new URL("jar:" + packURL + "!/packs/pack" + packid);
      // JarURLConnection jarConnection = (JarURLConnection)
      // url.openConnection();
      // TODO: what happens when using an automated installer?
      in = new WebAccessor(null).openInputStream(url);
      // TODO: Fails miserably when pack jars are not found, so this is
      // temporary
      if (in == null) {
        throw new InstallerException(
            url.toString() + " not available", new FileNotFoundException(url.toString()));
      }
    }
    if (in != null && idata.info.getPackDecoderClassName() != null) {
      Class<Object> decoder = (Class<Object>) Class.forName(idata.info.getPackDecoderClassName());
      Class[] paramsClasses = new Class[1];
      paramsClasses[0] = Class.forName("java.io.InputStream");
      Constructor<Object> constructor = decoder.getDeclaredConstructor(paramsClasses);
      // Our first used decoder input stream (bzip2) reads byte for byte from
      // the source. Therefore we put a buffering stream between it and the
      // source.
      InputStream buffer = new BufferedInputStream(in);
      Object[] params = {buffer};
      Object instance = null;
      instance = constructor.newInstance(params);
      if (!InputStream.class.isInstance(instance)) {
        throw new InstallerException(
            "'"
                + idata.info.getPackDecoderClassName()
                + "' must be derived from "
                + InputStream.class.toString());
      }
      in = (InputStream) instance;
    }
    return in;
  }