/****************************************************************
 * Copyright (c) 2001, David N. Main, All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the 
 * following conditions are met:
 *
 * 1. Redistributions of source code must retain the above 
 * copyright notice, this list of conditions and the following 
 * disclaimer. 
 * 
 * 2. Redistributions in binary form must reproduce the above 
 * copyright notice, this list of conditions and the following 
 * disclaimer in the documentation and/or other materials 
 * provided with the distribution.
 * 
 * 3. The name of the author may not be used to endorse or 
 * promote products derived from this software without specific 
 * prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
 * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ****************************************************************/
package com.anotherbigidea.flash;

import java.io.*;
import com.anotherbigidea.flash.interfaces.*;
import com.anotherbigidea.flash.readers.*;
import com.anotherbigidea.flash.writers.*;

/**
 * Utility to unprotect a SWF.
 * First arg is input filename.
 * Second arg is output filename.
 */
public class Unprotector implements SWFTags 
{
    protected SWFTags writer;
    
    public Unprotector( SWFTags writer )
    {
        this.writer = writer;
    }
    
    /**
     * Interface SWFTags
     */
    public void header( int version, long length,
                        int twipsWidth, int twipsHeight,
                        int frameRate, int frameCount ) throws IOException
    {
        writer.header( version, -1, 
                       twipsWidth, twipsHeight, 
                       frameRate, frameCount );
    }
    
    /**
     * Interface SWFTags
     */
    public void tag( int tagType, boolean longTag, byte[] contents ) 
        throws IOException
    {
        if( tagType == SWFConstants.TAG_PROTECT ) return; //skip protect tag
        
        writer.tag( tagType, longTag, contents );
    }
    
    public static void main( String[] args ) throws IOException
    {
        FileInputStream in = new FileInputStream( args[0] );
        FileOutputStream out = new FileOutputStream( args[1] );
        
        SWFWriter writer = new SWFWriter( out );
        Unprotector unprotector = new Unprotector( writer );
        SWFReader reader = new SWFReader( unprotector, in );
        reader.readFile();
        
        in.close();
        out.flush();
        out.close();
    }
}