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|
use log::debug;
use std::{
env::args,
fs::File,
io::{BufReader, Cursor, Read},
};
use unity_tools::{
common_strings::COMMON_STRINGS,
helper::{Endianness, ReadExt},
unityfs::UnityFS,
};
fn main() -> anyhow::Result<()> {
env_logger::init_from_env("LOG");
let file = BufReader::new(File::open(args().nth(1).unwrap())?);
let mut fs = UnityFS::open(file)?;
for node in fs.nodes().to_vec() {
if node.name.ends_with(".resource") || node.name.ends_with("resS") {
continue;
}
let mut cab = fs.read(&node)?;
// let mut writer = File::create(format!("/tmp/{}", node.name))?;
// std::io::copy(&mut cab, &mut writer)?;
// continue;
let mut metadata_size = cab.read_u32_be()?;
let mut file_size = cab.read_u32_be()? as u64;
let format = cab.read_u32_be()?;
let mut data_offset = cab.read_u32_be()? as u64;
debug!("format={format}");
assert!(format >= 9);
let e = match cab.read_u32_be()? {
0 => Endianness::Little,
_ => Endianness::Big,
};
debug!("endianess={e:?}");
if format >= 22 {
metadata_size = cab.read_u32(e)?;
file_size = cab.read_u64(e)?;
data_offset = cab.read_u64(e)?;
cab.read_u64(e)?;
}
debug!("metadata_size={metadata_size}");
debug!("file_size={file_size}");
debug!("data_offset={data_offset}");
let generator_version = cab.read_cstr()?;
let target_platform = cab.read_u32_le()?;
debug!("generator_version={generator_version:?}");
debug!("target_platform={target_platform}");
let has_type_trees = cab.read_u8()? != 0;
let num_types = cab.read_u32(e)?;
debug!("has_type_trees={has_type_trees:?}");
debug!("num_types={num_types}");
for _ in 0..num_types {
let class_id = cab.read_i32(e)?;
let stripped_type = cab.read_u8()? != 0;
let script_index = cab.read_i16(e)?;
let mut script_id = 0;
// TODO reftype
if class_id == 114 {
script_id = cab.read_u128_be()?;
}
let _old_hash = cab.read_u128_be()?;
eprintln!("class_id={class_id}");
eprintln!("stripped_type={stripped_type}");
eprintln!("script_index={script_index}");
eprintln!("script_id={script_id}");
if has_type_trees {
let num_nodes = cab.read_u32(e)?;
let size = cab.read_u32(e)?;
eprintln!("tree:num_nodes={num_nodes}");
eprintln!("tree:size={size}");
let mut node_data = vec![0u8; num_nodes as usize * 32];
cab.read_exact(&mut node_data)?;
let mut node_data = Cursor::new(node_data);
let mut string_data = vec![0u8; size as usize];
cab.read_exact(&mut string_data)?;
let get_string = |off: u32| {
let data = if off & 0x80000000 != 0 {
let off = off & 0x7fffffff;
&COMMON_STRINGS[(off & 0x7fffffff) as usize..]
} else {
&string_data[off as usize..]
};
String::from_utf8(
data.iter()
.copied()
.take_while(|e| *e != 0)
.collect::<Vec<u8>>(),
)
};
let mut nodes = Vec::new();
for _ in 0..num_nodes {
nodes.push(TypeTreeNode {
version: node_data.read_u16(e)?,
level: node_data.read_u8()?,
type_flags: node_data.read_u8()?,
type_string: get_string(node_data.read_u32(e)?)?,
name_string: get_string(node_data.read_u32(e)?)?,
byte_size: node_data.read_i32(e)?,
index: node_data.read_i32(e)?,
flags: node_data.read_i32(e)?,
ref_type_hash: node_data.read_u64(e)?,
});
}
eprintln!("{nodes:#?}");
if format >= 21 {
let num_deps = cab.read_u32(e)?;
for _ in 0..num_deps {
cab.read_u32(e)?;
}
}
}
if format > 21 {
cab.read_u32_be()?;
}
}
// let num_objects = cab.read_u32_le()?;
// debug!("num_objects={num_objects}");
// for _ in 0..num_objects {}
}
Ok(())
}
#[derive(Debug)]
struct TypeTreeNode {
version: u16,
level: u8,
type_flags: u8,
type_string: String,
name_string: String,
byte_size: i32,
index: i32,
flags: i32,
ref_type_hash: u64,
}
|
