StrafesNET/asset-tool
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decompile

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This commit is contained in:
Quaternions 2024-01-05 17:54:13 -08:00
parent 4a081d5b8f
commit aed3b69ca0
3 changed files with 296 additions and 12 deletions
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26
Cargo.lock generated
View File

@ -107,6 +107,8 @@ dependencies = [
"rbx_reflection_database",
"rbx_xml",
"reqwest",
"serde",
"serde_json",
"tokio",
]
@ -913,9 +915,9 @@ checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
[[package]]
name = "proc-macro2"
version = "1.0.71"
version = "1.0.76"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "75cb1540fadbd5b8fbccc4dddad2734eba435053f725621c070711a14bb5f4b8"
checksum = "95fc56cda0b5c3325f5fbbd7ff9fda9e02bb00bb3dac51252d2f1bfa1cb8cc8c"
dependencies = [
"unicode-ident",
]
@ -957,9 +959,9 @@ dependencies = [
[[package]]
name = "quote"
version = "1.0.33"
version = "1.0.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
dependencies = [
"proc-macro2",
]
@ -1230,18 +1232,18 @@ dependencies = [
[[package]]
name = "serde"
version = "1.0.193"
version = "1.0.195"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "25dd9975e68d0cb5aa1120c288333fc98731bd1dd12f561e468ea4728c042b89"
checksum = "63261df402c67811e9ac6def069e4786148c4563f4b50fd4bf30aa370d626b02"
dependencies = [
"serde_derive",
]
[[package]]
name = "serde_derive"
version = "1.0.193"
version = "1.0.195"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "43576ca501357b9b071ac53cdc7da8ef0cbd9493d8df094cd821777ea6e894d3"
checksum = "46fe8f8603d81ba86327b23a2e9cdf49e1255fb94a4c5f297f6ee0547178ea2c"
dependencies = [
"proc-macro2",
"quote",
@ -1250,9 +1252,9 @@ dependencies = [
[[package]]
name = "serde_json"
version = "1.0.108"
version = "1.0.111"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3d1c7e3eac408d115102c4c24ad393e0821bb3a5df4d506a80f85f7a742a526b"
checksum = "176e46fa42316f18edd598015a5166857fc835ec732f5215eac6b7bdbf0a84f4"
dependencies = [
"itoa",
"ryu",
@ -1298,9 +1300,9 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
[[package]]
name = "syn"
version = "2.0.43"
version = "2.0.48"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ee659fb5f3d355364e1f3e5bc10fb82068efbf824a1e9d1c9504244a6469ad53"
checksum = "0f3531638e407dfc0814761abb7c00a5b54992b849452a0646b7f65c9f770f3f"
dependencies = [
"proc-macro2",
"quote",

2
Cargo.toml
View File

@ -17,6 +17,8 @@ rbx_dom_weak = "2.5.0"
rbx_reflection_database = "0.2.7"
rbx_xml = "0.13.1"
reqwest = { version = "0.11.23", features = ["cookies"] }
serde = { version = "1.0.195", features = ["derive"] }
serde_json = "1.0.111"
tokio = { version = "1.35.1", features = ["macros", "rt-multi-thread", "fs"] }
[profile.release]

280
src/main.rs
View File

@ -2,6 +2,7 @@ use std::io::{Read,Seek};
use clap::{Args,Parser,Subcommand};
use anyhow::Result as AResult;
use futures::StreamExt;
use rbx_dom_weak::types::Ref;
type AssetID=u64;
type AssetIDFileMap=Vec<(AssetID,std::path::PathBuf)>;
@ -38,6 +39,12 @@ struct Cli{
#[arg(long,value_parser=parse_key_val::<AssetID,std::path::PathBuf>)]
asset_id:(AssetID,std::path::PathBuf),
#[arg(short,long)]
input:Option<std::path::PathBuf>,
#[arg(short,long)]
output:Option<std::path::PathBuf>,
#[command(subcommand)]
command:Commands,
}
@ -46,6 +53,8 @@ struct Cli{
enum Commands{
Download,
Upload,
Compile,
Decompile,
}
#[derive(Args)]
@ -74,6 +83,8 @@ async fn main()->AResult<()>{
match cli.command{
Commands::Download=>download_list(cookie,vec![cli.asset_id]).await,
Commands::Upload=>upload_list(cookie,cli.group,vec![cli.asset_id]).await,
Commands::Compile=>compile(cli.input.unwrap(),cli.output.unwrap()),
Commands::Decompile=>decompile(cli.input.unwrap(),cli.output.unwrap()),
}
}
@ -194,3 +205,272 @@ async fn download_list(cookie:String,asset_id_file_map:AssetIDFileMap)->AResult<
}).await;
Ok(())
}
fn load_dom<R:Read+Seek>(input:&mut R)->AResult<rbx_dom_weak::WeakDom>{
let mut first_8=[0u8;8];
if let (Ok(()),Ok(()))=(std::io::Read::read_exact(input, &mut first_8),std::io::Seek::rewind(input)){
match &first_8[0..4]{
b"<rob"=>{
match &first_8[4..8]{
b"lox!"=>return rbx_binary::from_reader(input).map_err(anyhow::Error::msg),
b"lox "=>return rbx_xml::from_reader(input,rbx_xml::DecodeOptions::default()).map_err(anyhow::Error::msg),
other=>Err(anyhow::Error::msg(format!("Unknown Roblox file type {:?}",other))),
}
},
_=>Err(anyhow::Error::msg("unsupported file type")),
}
}else{
Err(anyhow::Error::msg("peek failed"))
}
}
#[derive(PartialEq)]
enum Class{
Folder,
ModuleScript,
LocalScript,
Script,
Model,
}
struct TreeNode{
name:String,
referent:Ref,
parent:Ref,
class:Class,
children:Vec<Ref>,
}
impl TreeNode{
fn new(name:String,referent:Ref,parent:Ref,class:Class)->Self{
Self{
name,
referent,
parent,
class,
children:Vec::new(),
}
}
}
enum TrimStackInstruction{
Referent(Ref),
IncrementScript,
DecrementScript,
}
enum WriteStackInstruction<'a>{
Node(&'a TreeNode),
PushFolder(std::path::Component<'a>),
PopFolder,
Destroy(Ref),
}
#[derive(Default,serde::Deserialize,serde::Serialize)]
struct PropertiesOverride{
//Name:Option<String>,
ClassName:Option<String>,
}
impl PropertiesOverride{
fn is_some(&self)->bool{
self.ClassName.is_some()
}
}
fn write_item(dom:&rbx_dom_weak::WeakDom,mut file:std::path::PathBuf,node:&TreeNode)->AResult<()>{
file.push(node.name.as_str());
match node.class{
Class::Folder=>(),
Class::ModuleScript|Class::LocalScript|Class::Script=>{
assert!(file.set_extension("lua"),"could not set extension");
assert!(dom.get_by_ref(node.referent).is_some_and(|item|{
//TODO: delete disabled scripts
if let Some(rbx_dom_weak::types::Variant::String(source))=item.properties.get("Source"){
std::fs::write(file,source).is_ok()
}else{false}
}),"some ting wong");
},
Class::Model=>{
assert!(file.set_extension("rbxmx"));
let output=std::io::BufWriter::new(std::fs::File::create(file)?);
rbx_xml::to_writer_default(output,dom,&[node.referent])?;
},
}
Ok(())
}
fn decompile(input_file:std::path::PathBuf,output_folder:std::path::PathBuf)->AResult<()>{
//rules:
//Class Script|LocalScript|ModuleScript->$Name.lua
//Class Model->$Name.rbxmx
//overrides.json per-folder [Override{name,class}]
//Everything else goes into template.rbxlx
//read file
let mut input=std::io::BufReader::new(std::fs::File::open(input_file)?);
let mut dom=load_dom(&mut input)?;
let mut tree_refs=std::collections::HashMap::new();
tree_refs.insert(dom.root_ref(),TreeNode::new(
"src".to_string(),
dom.root_ref(),
Ref::none(),
Class::Folder
));
//run rules
let mut stack=vec![dom.root()];
while let Some(item)=stack.pop(){
let class=match item.class.as_str(){
"ModuleScript"=>Class::ModuleScript,
"LocalScript"=>Class::LocalScript,
"Script"=>Class::Script,
"Model"=>Class::Model,
_=>Class::Folder,
};
let skip=match class{
Class::Model=>true,
_=>false,
};
if let Some(parent_node)=tree_refs.get_mut(&item.parent()){
let referent=item.referent();
let node=TreeNode::new(item.name.clone(),referent,parent_node.referent,class);
parent_node.children.push(referent);
tree_refs.insert(referent,node);
}
if skip{
continue;
}
for &referent in item.children(){
if let Some(c)=dom.get_by_ref(referent){
stack.push(c);
}
}
}
//trim empty folders
let mut script_count=0;
let mut stack:Vec<TrimStackInstruction>=tree_refs.get(&dom.root_ref()).unwrap().children
.iter().map(|&c|TrimStackInstruction::Referent(c)).collect();
while let Some(instruction)=stack.pop(){
match instruction{
TrimStackInstruction::IncrementScript=>script_count+=1,
TrimStackInstruction::DecrementScript=>script_count-=1,
TrimStackInstruction::Referent(referent)=>{
let mut delete=None;
if let Some(node)=tree_refs.get_mut(&referent){
if node.class==Class::Folder&&script_count!=0{
node.class=Class::Model
}
if node.class==Class::Folder&&node.children.len()==0{
delete=Some(node.parent);
}else{
//how the hell do I do this better without recursion
let is_script=match node.class{
Class::ModuleScript|Class::LocalScript|Class::Script=>true,
_=>false,
};
//stack is popped from back
if is_script{
stack.push(TrimStackInstruction::DecrementScript);
}
for &child_referent in &node.children{
stack.push(TrimStackInstruction::Referent(child_referent));
}
if is_script{
stack.push(TrimStackInstruction::IncrementScript);
}
}
}
//trim referent
if let Some(parent_ref)=delete{
let parent_node=tree_refs.get_mut(&parent_ref)
.expect("parent_ref does not exist in tree_refs");
parent_node.children.remove(
parent_node.children.iter()
.position(|&r|r==referent)
.expect("parent.children does not contain referent")
);
tree_refs.remove(&referent);
}
},
}
}
//generate folders, models, and scripts
//delete models and scripts from dom
{
let mut folder=output_folder.clone();
let mut stack=vec![WriteStackInstruction::Node(tree_refs.get(&dom.root_ref()).unwrap())];
while let Some(instruction)=stack.pop(){
match instruction{
WriteStackInstruction::PushFolder(component)=>folder.push(component),
WriteStackInstruction::PopFolder=>assert!(folder.pop(),"weirdness"),
WriteStackInstruction::Destroy(referent)=>dom.destroy(referent),
WriteStackInstruction::Node(node)=>{
//properties.json to override class or other simple properties
let mut properties=PropertiesOverride::default();
let has_children=node.children.len()!=0;
match node.class{
Class::Folder=>(),
Class::ModuleScript=>{
//.lua files are ModuleScript by default
if has_children{
properties.ClassName=Some("ModuleScript".to_string())
}
},
Class::LocalScript=>properties.ClassName=Some("LocalScript".to_string()),
Class::Script=>properties.ClassName=Some("Script".to_string()),
Class::Model=>(),
}
if has_children||properties.is_some(){
//push temp subfolder
let mut subfolder=folder.clone();
subfolder.push(node.name.as_str());
//make folder
std::fs::create_dir(subfolder.clone())?;
//write properties
if properties.is_some(){
let mut file=subfolder.clone();
file.push("properties");
assert!(file.set_extension("json"),"could not set extension");
std::fs::write(file,serde_json::to_string(&properties)?)?
}
//write item in subfolder
write_item(&dom,subfolder,node)?;
}else{
//write item
write_item(&dom,folder.clone(),node)?;
}
//queue item to be deleted from dom after child objects are handled (stack is popped from the back)
match node.class{
Class::Folder=>(),
_=>stack.push(WriteStackInstruction::Destroy(node.referent)),
}
if has_children{
stack.push(WriteStackInstruction::PopFolder);
for referent in &node.children{
if let Some(c)=tree_refs.get(referent){
stack.push(WriteStackInstruction::Node(c));
}
}
stack.push(WriteStackInstruction::PushFolder(std::path::Component::Normal(std::ffi::OsStr::new(node.name.as_str()))));
}
},
}
}
}
//write what remains in template.rbxlx
{
let mut file=output_folder.clone();
file.push("template");
assert!(file.set_extension("rbxlx"));
let output=std::io::BufWriter::new(std::fs::File::create(file)?);
rbx_xml::to_writer_default(output,&dom,&[dom.root_ref()])?;
}
Ok(())
}
fn compile(_folder:std::path::PathBuf,_file:std::path::PathBuf)->AResult<()>{
Ok(())
}