/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */
package	netscape.softupdate	;

import netscape.softupdate.*;
import netscape.util.*;
import java.lang.*;
import netscape.security.PrivilegeManager;
import netscape.security.Target;
import netscape.security.AppletSecurity;

/* InstallFile
 * extracts	the	file to	the	temporary directory
 * on Complete(), copies it	to the final location
 */

final class	InstallFile	extends	InstallObject {

	private	String vrName;		// Name	of the component
	private	VersionInfo	versionInfo;	// Version
	private	String jarLocation;	// Location	in the JAR
	private	String tempFile;		// temporary file location
	private	String finalFile;		// final file destination
	private netscape.security.Target	target;	// security	target
    private boolean force;      // whether install is forced

	/*	Constructor
		inSoftUpdate	- softUpdate object	we belong to
		inComponentName	- full path	of the registry	component
		inVInfo			- full version info
		inJarLocation	- location inside the JAR file
		inFinalFileSpec	- final	location on	disk
	 */

	InstallFile(SoftwareUpdate inSoftUpdate,
				String inVRName,
				VersionInfo	inVInfo,
				String inJarLocation,
				FolderSpec folderSpec,
				String inPartialPath,
                boolean forceInstall) throws SoftUpdateException
	{
		super(inSoftUpdate);
		tempFile = null;
		vrName = inVRName;
		versionInfo	= inVInfo;
		jarLocation	= inJarLocation;
        force = forceInstall;
		finalFile =	folderSpec.MakeFullPath( inPartialPath );

		/* Request impersonation privileges */
		netscape.security.PrivilegeManager privMgr;
		Target impersonation;

		privMgr	= AppletSecurity.getPrivilegeManager();
		impersonation = Target.findTarget( SoftwareUpdate.IMPERSONATOR );
		privMgr.enablePrivilege( impersonation );

	    /* check the security permissions */
		target = folderSpec.GetSecurityTarget();

	   /* XXX: we need a way to indicate that a dialog box should appear. */
		privMgr.enablePrivilege( target, softUpdate.GetPrincipal() );
	}

	/* ExtractFile
	 * Extracts	file out of	the	JAR	archive	into the temp directory
	 */
	protected void	ExtractFile() throws SoftUpdateException
	{
		netscape.security.PrivilegeManager privMgr;
		Target impersonation;

		privMgr = AppletSecurity.getPrivilegeManager();
		impersonation = Target.findTarget( SoftwareUpdate.IMPERSONATOR );
	    privMgr.enablePrivilege( impersonation );
	    privMgr.enablePrivilege( target, softUpdate.GetPrincipal() );
		tempFile = softUpdate.ExtractJARFile( jarLocation, finalFile );
	}

	/* Complete
	 * Completes the install:
	 * - move the downloaded file to the final location
	 * - updates the registry
	 */
	protected void	Complete() throws SoftUpdateException
	{
		int	err;

		/* Check the security for our target */
		netscape.security.PrivilegeManager privMgr;
		Target impersonation;

		privMgr = AppletSecurity.getPrivilegeManager();
		impersonation = Target.findTarget( SoftwareUpdate.IMPERSONATOR );
		privMgr.enablePrivilege( impersonation );
		privMgr.enablePrivilege( target, softUpdate.GetPrincipal() );
		err	= NativeComplete();
		privMgr.revertPrivilege(target);

		if ( 0 == err || SoftwareUpdate.REBOOT_NEEDED == err )
		{
			VersionRegistry.installComponent(vrName, finalFile, versionInfo);
            if ( err != 0 )
                throw( new SoftUpdateException(finalFile, err));    	
        }
		else
			throw( new SoftUpdateException(Strings.error_InstallFileUnexpected()  +  finalFile, err));

		// Eventually, put extracted files into	proper locations
		// System.out.println("File installed:	" +	finalFile);
	}
	
	protected void Abort()
	{
	    NativeAbort();
    }
    
    private native void NativeAbort();
	private	native int NativeComplete();

	public String toString()
	{
	    return "Copy file to " + finalFile;
	}
}