Mirrors/mhtools
2
0
Fork 0
mirror of https://github.com/codestation/mhtools synced 2025-03-16 06:37:01 +00:00
Code Issues Projects Releases Packages Wiki Activity

Added support to recognize some file formats on the --dec-all

Browse source 
option switch
This commit is contained in:
codestation 2011-01-03 19:51:06 +00:00
parent 1ede17a3ae
commit 1119fabe08
2 changed files with 54 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
src/base/PatchBuilder.java
View file

@ -63,7 +63,7 @@ public class PatchBuilder extends DecryptTable {
}
private void install_tables(RandomAccessFile out, List<String> list) {
System.out.print("Trying to add data_install tables...");
System.out.println("Trying to add data_install tables...");
try {
BufferedReader in = new BufferedReader(new FileReader("data_install.txt"));
out.seek(out.length());
@ -114,9 +114,9 @@ public class PatchBuilder extends DecryptTable {
filelength += 16 - (filelength % 16);
out.setLength(filelength);
}
System.out.println("OK");
System.out.println("Finished");
} catch (FileNotFoundException e) {
System.out.println("\ndata_install.txt not found");
System.out.println("data_install.txt not found");
} catch (IOException e) {
e.printStackTrace();
}

54
src/crypt/Decrypter.java
View file

@ -24,6 +24,14 @@ import java.io.IOException;
import java.io.RandomAccessFile;
public class Decrypter extends DecryptTable {
private byte png[] = {(byte) 0x89, 0x50, 0x4e, 0x47};
private byte gif[] = {0x47, 0x49, 0x46, 0x38};
private byte tmh[] = {0x2e, 0x54, 0x4d, 0x48};
private byte gim[] = {0x4d, 0x49, 0x47, 0x2e};
private byte mwo[] = {0x4d, 0x57, 0x6f, 0x33};
private byte head[] = {0x48, 0x65, 0x61, 0x64};
private byte dbst[] = {0x64, 0x62, 0x73, 0x54};
private byte wav[] = {0x52, 0x49, 0x46, 0x46};
public void decrypt_index(String in, ByteArrayOutputStream index_buffer) {
try {
@ -96,7 +104,7 @@ public class Decrypter extends DecryptTable {
long file_length = (get_table_value(index_table, i * 4) - offset) << 11;
String fileout = out + "/0"
+ Integer.toString(last_subdirectory) + "/"
+ String.format("%04d.bin", i);
+ String.format("%04d", i);
System.out.print("Decrypting " + fileout + "(" + file_length
+ " bytes/offset: " + (offset << 11) + ") ... ");
decrypt_internal(filein, offset, file_length, fileout, false);
@ -106,16 +114,44 @@ public class Decrypter extends DecryptTable {
e.printStackTrace();
}
}
private boolean equals(byte a1[], byte a2[]) {
return a1[0] == a2[0] &&
a1[1] == a2[1] &&
a1[2] == a2[2] &&
a1[3] == a2[3];
}
private String identify_file(byte buffer[], int size) {
if(size < 4)
return "bin";
if(equals(buffer, png))
return "png";
if(equals(buffer, gif))
return "gif";
if(equals(buffer, tmh))
return "tmh";
if(equals(buffer, gim))
return "gim";
if(equals(buffer, mwo))
return "mwo";
if(equals(buffer, head))
return "head";
if(equals(buffer, dbst))
return "dbst";
if(equals(buffer, wav))
return "wav";
return "bin";
}
private void decrypt_internal(RandomAccessFile filein, long pos, long size,
String out, boolean single) {
try {
if (!single)
filein.seek(pos << 11);
RandomAccessFile fileout = new RandomAccessFile(out, "rw");
RandomAccessFile fileout = null;
byte buffer[] = new byte[1024];
fileout.setLength(0);
initSeed(pos);
boolean create_file = true;
while (size > 0) {
int read = filein.read(buffer);
size -= read;
@ -129,8 +165,20 @@ public class Decrypter extends DecryptTable {
long gamma = alpha ^ beta;
set_table_value(buffer, i, gamma);
}
if(create_file) {
String ext = identify_file(buffer, read);
fileout = new RandomAccessFile(out + "." + ext, "rw");
fileout.setLength(0);
create_file = false;
}
fileout.write(buffer);
}
if(create_file) {
String ext = identify_file(buffer, 0);
fileout = new RandomAccessFile(out + "." + ext, "rw");
fileout.setLength(0);
create_file = false;
}
fileout.close();
System.out.println("Finished!");
} catch (FileNotFoundException e) {