/*
* Copyright (C) 2010-2016 JPEXS, All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package com.jpexs.decompiler.flash.tags;
import com.jpexs.decompiler.flash.SWF;
import com.jpexs.decompiler.flash.SWFInputStream;
import com.jpexs.decompiler.flash.SWFOutputStream;
import com.jpexs.decompiler.flash.tags.base.PasswordTag;
import com.jpexs.decompiler.flash.types.BasicType;
import com.jpexs.decompiler.flash.types.annotations.HashType;
import com.jpexs.decompiler.flash.types.annotations.Optional;
import com.jpexs.decompiler.flash.types.annotations.Password;
import com.jpexs.decompiler.flash.types.annotations.Reserved;
import com.jpexs.decompiler.flash.types.annotations.SWFType;
import com.jpexs.decompiler.flash.types.annotations.SWFVersion;
import com.jpexs.helpers.ByteArrayRange;
import com.jpexs.helpers.Helper;
import com.jpexs.helpers.utf8.Utf8Helper;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Enable flash profiling information
*
* @author JPEXS
*/
@SWFVersion(from = 17)
public class EnableTelemetryTag extends Tag implements PasswordTag {
public static final int ID = 93;
public static final String NAME = "EnableTelemetry";
@SWFType(value = BasicType.UB, count = 16)
@Reserved
public int reserved;
@Optional
@Password(type = HashType.SHA256)
public String passwordHash;
/**
* Constructor
*
* @param swf
*/
public EnableTelemetryTag(SWF swf) {
super(swf, ID, NAME, null);
passwordHash = sha256("");
}
/**
* Constructor
*
* @param sis
* @param data
* @throws IOException
*/
public EnableTelemetryTag(SWFInputStream sis, ByteArrayRange data) throws IOException {
super(sis.getSwf(), ID, NAME, data);
readData(sis, data, 0, false, false, false);
}
@Override
public final void readData(SWFInputStream sis, ByteArrayRange data, int level, boolean parallel, boolean skipUnusualTags, boolean lazy) throws IOException {
reserved = (int) sis.readUB(16, "reserved");
if (sis.available() > 0) {
if (sis.available() != 32) {
Logger.getLogger(EnableTelemetryTag.class.getName()).log(Level.WARNING, "PasswordHash should be 32 bytes");
}
passwordHash = Helper.byteArrayToHex(sis.readBytesEx(32, "passwordHash"));
}
}
/**
* Gets data bytes
*
* @param sos SWF output stream
* @throws java.io.IOException
*/
@Override
public void getData(SWFOutputStream sos) throws IOException {
sos.writeUB(16, reserved);
if (passwordHash != null) {
sos.write(Helper.hexToByteArray(passwordHash));
}
}
private String sha256(String password) {
MessageDigest md;
try {
md = MessageDigest.getInstance("SHA-256");
md.update(password.getBytes(Utf8Helper.charset));
return Helper.byteArrayToHex(md.digest());
} catch (NoSuchAlgorithmException ex) {
}
return null;
}
@Override
public void setPassword(String password) {
this.passwordHash = sha256(password);
}
@Override
public boolean hasPassword(String password) {
return sha256(password).equals(this.passwordHash);
}
}