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https://git.huckle.dev/Huckles-Minecraft-Archive/jpexs-decompiler.git
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379 lines
11 KiB
Java
379 lines
11 KiB
Java
/*
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* Copyright (C) 2010-2011 JPEXS
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.jpexs.asdec;
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import SevenZip.Compression.LZMA.Encoder;
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import com.jpexs.asdec.action.TagNode;
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import com.jpexs.asdec.helpers.Highlighting;
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import com.jpexs.asdec.tags.ASMSource;
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import com.jpexs.asdec.tags.DoABCTag;
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import com.jpexs.asdec.tags.Tag;
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import com.jpexs.asdec.tags.TagName;
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import com.jpexs.asdec.types.RECT;
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import java.io.*;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.zip.DeflaterOutputStream;
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import java.util.zip.InflaterInputStream;
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/**
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* Class representing SWF file
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*
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* @author JPEXS
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*/
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public class SWF {
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/**
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* Default version of SWF file format
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*/
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public static final int DEFAULT_VERSION = 10;
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/**
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* Tags inside of file
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*/
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public List<Tag> tags = new ArrayList<Tag>();
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/**
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* Rectangle for the display
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*/
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public RECT displayRect;
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/**
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* Movie frame rate
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*/
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public int frameRate;
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/**
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* Number of frames in movie
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*/
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public int frameCount;
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/**
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* Version of SWF
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*/
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public int version;
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/**
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* Size of the file
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*/
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public long fileSize;
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/**
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* Use compression
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*/
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public boolean compressed = false;
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/**
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* Use LZMA compression
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*/
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public boolean lzma = false;
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/**
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* Compressed size of the file (LZMA)
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*/
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public long compressedSize;
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/**
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* LZMA Properties
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*/
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public byte lzmaProperties[];
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/**
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* Gets all tags with specified id
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*
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* @param tagId Identificator of tag type
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* @return List of tags
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*/
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public List<Tag> getTagData(int tagId) {
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List<Tag> ret = new ArrayList<Tag>();
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for (Tag tag : tags) {
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if (tag.getId() == tagId) {
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ret.add(tag);
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}
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}
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return ret;
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}
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/**
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* Saves this SWF into new file
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*
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* @param os OutputStream to save SWF in
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* @throws IOException
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*/
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public void saveTo(OutputStream os) throws IOException {
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try {
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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SWFOutputStream sos = new SWFOutputStream(baos, version);
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sos.writeRECT(displayRect);
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sos.writeUI8(0);
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sos.writeUI8(frameRate);
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sos.writeUI16(frameCount);
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sos.writeTags(tags);
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sos.writeUI16(0);
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sos.close();
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if (compressed && lzma) {
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os.write('Z');
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} else if (compressed) {
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os.write('C');
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} else {
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os.write('F');
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}
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os.write('W');
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os.write('S');
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os.write(version);
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byte data[] = baos.toByteArray();
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sos = new SWFOutputStream(os, version);
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sos.writeUI32(data.length + 8);
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if (compressed) {
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if (lzma) {
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Encoder enc = new Encoder();
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int val = lzmaProperties[0] & 0xFF;
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int lc = val % 9;
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int remainder = val / 9;
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int lp = remainder % 5;
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int pb = remainder / 5;
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int dictionarySize = 0;
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for (int i = 0; i < 4; i++) {
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dictionarySize += ((int) (lzmaProperties[1 + i]) & 0xFF) << (i * 8);
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}
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enc.SetDictionarySize(dictionarySize);
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enc.SetLcLpPb(lc, lp, pb);
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baos = new ByteArrayOutputStream();
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enc.SetEndMarkerMode(true);
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enc.Code(new ByteArrayInputStream(data), baos, -1, -1, null);
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data = baos.toByteArray();
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byte udata[] = new byte[4];
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udata[0] = (byte) (data.length & 0xFF);
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udata[1] = (byte) ((data.length >> 8) & 0xFF);
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udata[2] = (byte) ((data.length >> 16) & 0xFF);
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udata[3] = (byte) ((data.length >> 24) & 0xFF);
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os.write(udata);
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os.write(lzmaProperties);
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} else {
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os = new DeflaterOutputStream(os);
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}
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}
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os.write(data);
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} finally {
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if (os != null) {
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os.close();
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}
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}
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}
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/**
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* Construct SWF from stream
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*
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* @param is Stream to read SWF from
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* @throws IOException
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*/
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public SWF(InputStream is) throws IOException {
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byte hdr[] = new byte[3];
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is.read(hdr);
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String shdr = new String(hdr);
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if ((!shdr.equals("FWS")) && (!shdr.equals("CWS")) && (!shdr.equals("ZWS"))) {
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throw new IOException("Invalid SWF file");
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}
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version = is.read();
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SWFInputStream sis = new SWFInputStream(is, version, 4);
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fileSize = sis.readUI32();
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if (hdr[0] == 'C') {
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sis = new SWFInputStream(new InflaterInputStream(is), version, 8);
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compressed = true;
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}
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if (hdr[0] == 'Z') {
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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long outSize = sis.readUI32();
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int propertiesSize = 5;
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lzmaProperties = new byte[propertiesSize];
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if (sis.read(lzmaProperties, 0, propertiesSize) != propertiesSize) {
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throw new IOException("LZMA:input .lzma file is too short");
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}
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SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
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if (!decoder.SetDecoderProperties(lzmaProperties)) {
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throw new IOException("LZMA:Incorrect stream properties");
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}
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if (!decoder.Code(sis, baos, fileSize - 8)) {
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throw new IOException("LZMA:Error in data stream");
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}
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sis = new SWFInputStream(new ByteArrayInputStream(baos.toByteArray()), version, 8);
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compressed = true;
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lzma = true;
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}
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displayRect = sis.readRECT();
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// FIXED8 (16 bit fixed point) frameRate
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int tmpFirstByetOfFrameRate = sis.readUI8();
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frameRate = sis.readUI8();
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frameCount = sis.readUI16();
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tags = sis.readTagList(0);
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}
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/**
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* Compress SWF file
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*
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* @param fis Input stream
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* @param fos Output stream
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*/
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public static boolean fws2cws(InputStream fis, OutputStream fos) {
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try {
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byte swfHead[] = new byte[8];
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fis.read(swfHead);
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if (swfHead[0] != 'F') {
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fis.close();
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return false;
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}
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swfHead[0] = 'C';
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fos.write(swfHead);
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fos = new DeflaterOutputStream(fos);
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int i;
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while ((i = fis.read()) != -1) {
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fos.write(i);
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}
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fis.close();
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fos.close();
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} catch (FileNotFoundException ex) {
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return false;
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} catch (IOException ex) {
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return false;
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}
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return true;
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}
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/**
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* Decompress SWF file
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*
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* @param fis Input stream
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* @param fos Output stream
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*/
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public static boolean cws2fws(InputStream fis, OutputStream fos) {
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try {
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byte swfHead[] = new byte[8];
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fis.read(swfHead);
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InflaterInputStream iis = new InflaterInputStream(fis);
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if (swfHead[0] != 'C') {
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fis.close();
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return false;
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}
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swfHead[0] = 'F';
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fos.write(swfHead);
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int i;
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while ((i = iis.read()) != -1) {
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fos.write(i);
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}
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fis.close();
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fos.close();
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} catch (FileNotFoundException ex) {
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return false;
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} catch (IOException ex) {
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return false;
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}
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return true;
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}
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public boolean exportActionScript(String outdir, boolean isPcode) throws Exception {
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boolean asV3Found = false;
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final EventListener evl = new EventListener() {
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public void handleEvent(String event, Object data) {
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if (event.equals("export")) {
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informListeners(event, data);
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}
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}
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};
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for (Tag t : tags) {
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if (t instanceof DoABCTag) {
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((DoABCTag) t).abc.addEventListener(evl);
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((DoABCTag) t).abc.export(outdir, isPcode);
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asV3Found = true;
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}
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}
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if (!asV3Found) {
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List<Object> list2 = new ArrayList<Object>();
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list2.addAll(tags);
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return exportNode(TagNode.createTagList(list2), outdir, isPcode);
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}
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return asV3Found;
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}
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private boolean exportNode(List<TagNode> nodeList, String outdir, boolean isPcode) {
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File dir = new File(outdir);
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if (!dir.exists()) {
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dir.mkdirs();
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}
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List<String> existingNames = new ArrayList<String>();
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for (TagNode node : nodeList) {
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String name;
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if (node.tag instanceof TagName) {
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name = ((TagName) node.tag).getName();
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} else {
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name = node.tag.toString();
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}
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int i = 1;
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String baseName = name;
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while (existingNames.contains(name)) {
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i++;
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name = baseName + "_" + i;
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}
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existingNames.add(name);
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if (node.subItems.isEmpty()) {
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if (node.tag instanceof ASMSource) {
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try {
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String f = outdir + File.separatorChar + name + ".as";
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informListeners("export", "Exporting " + f + " ...");
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String ret;
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if (isPcode) {
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ret = ((ASMSource) node.tag).getASMSource(SWF.DEFAULT_VERSION);
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} else {
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List<com.jpexs.asdec.action.Action> as = ((ASMSource) node.tag).getActions(SWF.DEFAULT_VERSION);
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com.jpexs.asdec.action.Action.setActionsAddresses(as, 0, SWF.DEFAULT_VERSION);
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ret = (Highlighting.stripHilights(com.jpexs.asdec.action.Action.actionsToSource(as, SWF.DEFAULT_VERSION)));
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}
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FileOutputStream fos = new FileOutputStream(f);
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fos.write(ret.getBytes());
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fos.close();
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} catch (Exception ex) {
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}
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}
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} else {
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exportNode(node.subItems, outdir + File.separatorChar + name, isPcode);
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}
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}
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return true;
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}
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protected HashSet<EventListener> listeners = new HashSet<EventListener>();
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public void addEventListener(EventListener listener) {
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listeners.add(listener);
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}
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public void removeEventListener(EventListener listener) {
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listeners.remove(listener);
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}
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protected void informListeners(String event, Object data) {
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for (EventListener listener : listeners) {
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listener.handleEvent(event, data);
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}
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}
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}
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