Source code: com/anotherbigidea/flash/Unprotector.java
1 /****************************************************************
2 * Copyright (c) 2001, David N. Main, All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or
5 * without modification, are permitted provided that the
6 * following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
10 * disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
16 *
17 * 3. The name of the author may not be used to endorse or
18 * promote products derived from this software without specific
19 * prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
22 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
24 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
32 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 ****************************************************************/
34 package com.anotherbigidea.flash;
35
36 import java.io.*;
37 import com.anotherbigidea.flash.interfaces.*;
38 import com.anotherbigidea.flash.readers.*;
39 import com.anotherbigidea.flash.writers.*;
40
41 /**
42 * Utility to unprotect a SWF.
43 * First arg is input filename.
44 * Second arg is output filename.
45 */
46 public class Unprotector implements SWFTags
47 {
48 protected SWFTags writer;
49
50 public Unprotector( SWFTags writer )
51 {
52 this.writer = writer;
53 }
54
55 /**
56 * Interface SWFTags
57 */
58 public void header( int version, long length,
59 int twipsWidth, int twipsHeight,
60 int frameRate, int frameCount ) throws IOException
61 {
62 writer.header( version, -1,
63 twipsWidth, twipsHeight,
64 frameRate, frameCount );
65 }
66
67 /**
68 * Interface SWFTags
69 */
70 public void tag( int tagType, boolean longTag, byte[] contents )
71 throws IOException
72 {
73 if( tagType == SWFConstants.TAG_PROTECT ) return; //skip protect tag
74
75 writer.tag( tagType, longTag, contents );
76 }
77
78 public static void main( String[] args ) throws IOException
79 {
80 FileInputStream in = new FileInputStream( args[0] );
81 FileOutputStream out = new FileOutputStream( args[1] );
82
83 SWFWriter writer = new SWFWriter( out );
84 Unprotector unprotector = new Unprotector( writer );
85 SWFReader reader = new SWFReader( unprotector, in );
86 reader.readFile();
87
88 in.close();
89 out.flush();
90 out.close();
91 }
92 }