Package org.gudy.azureus2.pluginsimpl.local.update

Source Code of org.gudy.azureus2.pluginsimpl.local.update.UpdateInstallerImpl

/*
* Created on 16-May-2004
* Created by Paul Gardner
* Copyright (C) 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/

package org.gudy.azureus2.pluginsimpl.local.update;

/**
* @author parg
*
*/

import java.io.*;

import org.gudy.azureus2.platform.PlatformManager;
import org.gudy.azureus2.platform.PlatformManagerCapabilities;
import org.gudy.azureus2.platform.PlatformManagerFactory;
import org.gudy.azureus2.plugins.update.*;

import org.gudy.azureus2.core3.util.*;
import org.gudy.azureus2.core3.internat.MessageText;
import org.gudy.azureus2.core3.logging.*;

import com.aelitis.azureus.core.update.AzureusRestarter;
import com.aelitis.azureus.core.update.AzureusRestarterFactory;

public class
UpdateInstallerImpl
  implements UpdateInstaller
{
    // change these and you'll need to change the Updater!!!!
 
  protected static final String  UPDATE_DIR     = "updates";
  protected static final String  ACTIONS_LEGACY  = "install.act";
  protected static final String  ACTIONS_UTF8  = "install.act.utf8";
 
  protected static AEMonitor  class_mon   = new AEMonitor( "UpdateInstaller:class" );

  private UpdateManagerImpl  manager;
  private File        install_dir;
 
  protected static void
  checkForFailedInstalls(
    UpdateManagerImpl  manager )
  {
    try{
      File  update_dir = new File( manager.getUserDir() + File.separator + UPDATE_DIR );
     
      File[]  dirs = update_dir.listFiles();
     
      if ( dirs != null ){
       
        boolean  found_failure = false;
       
        String  files = "";
       
        for (int i=0;i<dirs.length;i++){
         
          File  dir = dirs[i];
         
          if ( dir.isDirectory()){
           
              // if somethings here then the install failed
           
            found_failure  = true;
           
            File[] x = dir.listFiles();
           
            if ( x != null ){
             
              for (int j=0;j<x.length;j++){
               
                files += (files.length()==0?"":",") + x[j].getName();
              }
            }
           
            FileUtil.recursiveDelete( dir );
          }
        }
       
        if ( found_failure ){
          Logger.log(new LogAlert(LogAlert.UNREPEATABLE, LogAlert.AT_ERROR,
              MessageText.getString("Alert.failed.update", new String[]{ files })));
        }
      }
    }catch( Throwable e ){
     
      Debug.printStackTrace( e );
    }
  }
 
  protected
  UpdateInstallerImpl(
    UpdateManagerImpl  _manager )
 
    throws UpdateException
  {
    manager  = _manager;
   
    try{
      class_mon.enter();
     
        // updates are in general user-specific (e.g. plugin updates) so store here
        // obviously core ones will affect all users
     
      String  update_dir = getUserDir() + File.separator + UPDATE_DIR;
     
      for (int i=1;i<1024;i++){
       
        File  try_dir = new File( update_dir + File.separator + "inst_" + i );
               
        if ( !try_dir.exists()){
         
          if ( !FileUtil.mkdirs(try_dir)){
   
            throw( new UpdateException( "Failed to create a temporary installation dir"));
          }
         
          install_dir  = try_dir;
         
          break;
        }
      }
     
      if ( install_dir == null ){
       
        throw( new UpdateException( "Failed to find a temporary installation dir"));
      }
    }finally{
     
      class_mon.exit();
    }
  }
 
  public void
  addResource(
    String      resource_name,
    InputStream   is )
 
      throws UpdateException
  {
    addResource(resource_name,is,true);
  }
 
  public void
  addResource(
    String      resource_name,
    InputStream    is,
    boolean     closeInputStream)
 
    throws UpdateException
  {
    try{
      File  target_file = new File(install_dir, resource_name );
   
      FileUtil.copyFile( is, new FileOutputStream( target_file ),closeInputStream);
     
    }catch( Throwable e ){
     
      throw( new UpdateException( "UpdateInstaller: resource addition fails", e ));
    }
  }
   
  public String
  getInstallDir()
  {
    return( manager.getInstallDir());
  }
   
  public String
  getUserDir()
  {
    return( manager.getUserDir());
  }
 
  public void
  addMoveAction(
    String    from_file_or_resource,
    String    to_file )
 
    throws UpdateException
  {
    // System.out.println( "move action:" + from_file_or_resource + " -> " + to_file );
   
    if ( from_file_or_resource.indexOf(File.separator) == -1 ){
     
      from_file_or_resource = install_dir.toString() + File.separator + from_file_or_resource;
    }
   
    try{
        // see if this action has a chance of succeeding
     
      File  to_f = new File( to_file );
     
      File  parent = to_f.getParentFile();
     
      if ( parent != null && !parent.exists()){
       
        parent.mkdirs();
      }
     
      boolean  log_perm_set_fail = true;
     
      if ( parent != null ){
       
        // we're going to need write access to the parent, let's try
       
        if ( !parent.canWrite()){
         
          log_perm_set_fail = false;
         
            // Vista install process goes through permissions elevation process
            // so don't warn about lack of write permissions
         
          if ( !Constants.isWindowsVistaOrHigher ){
           
            Logger.log(new LogAlert(LogAlert.UNREPEATABLE, LogAlert.AT_WARNING,
              "The location '" + parent.toString()
                  + "' isn't writable, this update will probably fail."
                  + " Check permissions and retry the update"));
           
          }
        }
      }
             
      try{
        PlatformManager  pm = PlatformManagerFactory.getPlatformManager();
         
        if ( pm.hasCapability( PlatformManagerCapabilities.CopyFilePermissions )){
         
          String  parent_str = parent.getAbsolutePath();
                   
          PlatformManagerFactory.getPlatformManager().copyFilePermissions(
              parent_str, from_file_or_resource );
        }
      }catch( Throwable e ){
         
        if ( log_perm_set_fail ){
         
          if ( !Constants.isWindowsVistaOrHigher ){
         
            Debug.out( e );
          }
        }
      }
    }catch( Throwable e ){
     
    }
   
    appendAction( "move," + from_file_or_resource  + "," + to_file );
  }
 
 
  public void
  addChangeRightsAction(
    String    rights,
    String    to_file )
 
      throws UpdateException
  {
    appendAction( "chmod," + rights  + "," + to_file );
  }
 
  public void
  addRemoveAction(
    String    file )
 
      throws UpdateException
  {
    appendAction( "remove," + file );
  }
 
  protected void
  appendAction(
    String    data )
 
    throws UpdateException
  {
    PrintWriter  pw_legacy = null;
 
    try{   
     
      pw_legacy = new PrintWriter(new FileWriter( install_dir.toString() + File.separator + ACTIONS_LEGACY, true ));

      pw_legacy.println( data );
     
    }catch( Throwable e ){
     
      throw( new UpdateException( "Failed to write actions file", e ));
     
    }finally{
     
      if ( pw_legacy != null ){
   
        try
          pw_legacy.close();
         
        }catch( Throwable e ){
 
          throw( new UpdateException( "Failed to write actions file", e ));
        }
      }
    }
   
    PrintWriter  pw_utf8 = null;
   
    try{   
     
      pw_utf8 = new PrintWriter( new OutputStreamWriter( new FileOutputStream( install_dir.toString() + File.separator + ACTIONS_UTF8, true ), "UTF-8" ));

      pw_utf8.println( data );
     
    }catch( Throwable e ){
     
      throw( new UpdateException( "Failed to write actions file", e ));
     
    }finally{
     
      if ( pw_utf8 != null ){
   
        try{   
          pw_utf8.close();
         
        }catch( Throwable e ){
 
          throw( new UpdateException( "Failed to write actions file", e ));
        }
      }
    }
  }
 
  public void
  installNow(
    final UpdateInstallerListener    listener )
 
    throws UpdateException
  {
    try{
      UpdateInstaller[] installers = manager.getInstallers();
     
      if ( installers.length != 1 || installers[0] != this ){
       
        throw( new UpdateException( "Other installers exist - aborting" ));
      }
           
      listener.reportProgress( "Update starts" );
     
      AzureusRestarter ar = AzureusRestarterFactory.create( manager.getCore());
     
      ar.updateNow();
     
      new AEThread2( "installNow:waiter", true )
      {
        public void
        run()
        {
          try{
            long  start = SystemTime.getMonotonousTime();
           
            UpdateException pending_error = null;
           
            while( true ){
             
              Thread.sleep( 1000 );
         
              listener.reportProgress( "Checking progress" );
             
              if ( !install_dir.exists()){
               
                break;
              }
             
              File  fail_file = new File( install_dir, "install.fail" );
             
              if ( fail_file.exists()){
             
                try{
                  String error = FileUtil.readFileAsString( fail_file, 1024 );
                 
                  throw( new UpdateException( error ));
                 
                }catch( Throwable e ){
                 
                  if ( e instanceof UpdateException ){
                   
                    throw( e );
                  }
                 
                  if ( pending_error != null ){
                   
                    throw( pending_error );
                  }
                 
                  pending_error = new UpdateException( "Install failed, reason unknown" );
                }
              }
             
              if ( SystemTime.getMonotonousTime() - start >= 5*60*1000 ){
               
                listener.reportProgress( "Timeout" );
               
                throw( new UpdateException( "Timeout waiting for update to apply" ));
              }
            }
           
            listener.reportProgress( "Complete" );
           
            listener.complete();
           
          }catch( Throwable e ){
           
            UpdateException fail;
           
            if ( e instanceof UpdateException ){
             
              fail = (UpdateException)e;
             
            }else{
             
              fail = new UpdateException( "install failed", e );
            }
           
            listener.reportProgress( fail.getMessage());
           
            listener.failed( fail );
           
          }finally{
           
            deleteInstaller()
          }
        }
      }.start();
     
    }catch( Throwable e ){
     
      deleteInstaller()
     
      UpdateException fail;
     
      if ( e instanceof UpdateException ){
       
        fail = (UpdateException)e;
       
      }else{
       
        fail = new UpdateException( "install failed", e );
      }
     
      listener.reportProgress( fail.getMessage());
     
      listener.failed( fail );
     
      throw( fail );
    }
  }
 
  public void
  destroy()
  {
    deleteInstaller();
  }
 
  private void
  deleteInstaller()
  {
    manager.removeInstaller( this );

    if ( install_dir.exists()){
     
      FileUtil.recursiveDelete( install_dir );
    }
  }
}
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