censorship patch: add check for BigScene

Co-authored-by: traffic95 <traffic95@xeondev.com>
Reviewed-on: yixuan-rs/yixuan-patch#1

Cargo.lock

@@ -239,16 +239,6 @@ version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
 
-[[package]]
-name = "vivian"
-version = "0.0.1"
-dependencies = [
- "ilhook",
- "num_enum",
- "thiserror 2.0.11",
- "windows",
-]
-
 [[package]]
 name = "windows"
 version = "0.59.0"
@@ -441,3 +431,13 @@ checksum = "36c1fec1a2bb5866f07c25f68c26e565c4c200aebb96d7e55710c19d3e8ac49b"
 dependencies = [
  "memchr",
 ]
+
+[[package]]
+name = "yixuan"
+version = "0.0.1"
+dependencies = [
+ "ilhook",
+ "num_enum",
+ "thiserror 2.0.11",
+ "windows",
+]

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace]
-members = ["launcher", "vivian"]
+members = ["launcher", "yixuan"]
 resolver = "2"
 
 [workspace.package]

README.md

@@ -1,2 +1,2 @@
-# vivian-patch
+# yixuan-patch
 

launcher/src/main.rs

@@ -13,7 +13,7 @@ use windows::Win32::System::Threading::{
 };
 
 const GAME_EXECUTABLE: PCSTR = s!("ZenlessZoneZero.exe");
-const INJECT_DLL: &str = "vivian.dll";
+const INJECT_DLL: &str = "yixuan.dll";
 
 fn inject_standard(h_target: HANDLE, dll_path: &str) -> bool {
     unsafe {

yixuan/Cargo.toml

@@ -1,10 +1,10 @@
 [package]
-name = "vivian"
+name = "yixuan"
 edition = "2021"
 version.workspace = true
 
 [lib]
-name = "vivian"
+name = "yixuan"
 crate-type = ["cdylib"]
 
 [dependencies]

yixuan/src/lib.rs

@@ -2,6 +2,7 @@ use std::{thread, time::Duration};
 
 use interceptor::Interceptor;
 use modules::{
+    censorship_patch::CensorshipPatch,
     crypto::{
         initialize_rsa_public_key, monitor_network_state, replace_sdk_public_key_string_literal,
     },
@@ -31,12 +32,18 @@ unsafe fn thread_fn() {
     thread::sleep(Duration::from_secs(5));
     util::disable_memory_protection();
 
-    println!("vivian-patch (1.7.0 PROD) is initializing");
-    println!("to work with vivian-rs: https://git.xeondev.com/vivian-rs/vivian-rs");
+    println!("yixuan-patch (2.0.0 PROD) is initializing");
+
+    println!(
+        "to work with yixuan-rs: https://git.xeondev.com/yixuan-rs/yixuan-rs"
+    );
+
+    println!("\nJoin us on Discord at https://discord.gg/reversedrooms\n\n\n");
 
     let mut module_manager = NapModuleManager::default();
     module_manager.add::<Network>();
     module_manager.add::<HoyopassPatch>();
+    module_manager.add::<CensorshipPatch>();
     module_manager.init().expect("failed to initialize modules");
 
     initialize_rsa_public_key();

yixuan/src/modules/censorship_patch.rs

@@ -0,0 +1,72 @@
+use ilhook::x64::Registers;
+use std::sync::atomic::{AtomicU32, Ordering};
+
+use super::{ModuleInitError, NapModule, NapModuleContext};
+
+const SET_DITHER_CONFIG: usize = 0x8CA93D0;
+const DITHER_CONFIG_AVATAR_USING_DITHER_ALPHA: usize = 0x49;
+
+const ON_ENTER_BIG_SCENE_SC_NOTIFY: usize = 0x104721E0;
+const ON_ENTER_SCENE_SC_NOTIFY: usize = 0x86E6F80;
+const ENTER_SCENE_SC_NOTIFY_SCENE_DATA: usize = 0x10;
+const SCENE_DATA_SCENE_TYPE: usize = 0x74;
+const SCENE_TYPE_HALL: u32 = 1;
+
+static LAST_ENTER_SCENE_TYPE: AtomicU32 = AtomicU32::new(0);
+
+pub struct CensorshipPatch;
+
+impl NapModule for NapModuleContext<CensorshipPatch> {
+    unsafe fn init(&mut self) -> Result<(), ModuleInitError> {
+        self.interceptor.attach(
+            self.base.wrapping_add(SET_DITHER_CONFIG),
+            CensorshipPatch::on_set_dither_config,
+        )?;
+
+        self.interceptor.attach(
+            self.base.wrapping_add(ON_ENTER_SCENE_SC_NOTIFY),
+            CensorshipPatch::on_enter_scene_sc_notify,
+        )?;
+
+        self.interceptor.attach(
+            self.base.wrapping_add(ON_ENTER_BIG_SCENE_SC_NOTIFY),
+            CensorshipPatch::on_enter_big_scene_sc_notify,
+        )?;
+
+        Ok(())
+    }
+}
+
+impl CensorshipPatch {
+    pub unsafe extern "win64" fn on_set_dither_config(reg: *mut Registers, _: usize) {
+        if LAST_ENTER_SCENE_TYPE.load(Ordering::SeqCst) == SCENE_TYPE_HALL {
+            if (*reg).rdx != 0 {
+                println!("SetDitherConfig: disabling dither alpha");
+                *(((*reg).rdx as *mut u8).wrapping_add(DITHER_CONFIG_AVATAR_USING_DITHER_ALPHA)) =
+                    0;
+            }
+        } else {
+            println!("SetDitherConfig: not in hall, ignoring");
+        }
+    }
+
+    pub unsafe extern "win64" fn on_enter_scene_sc_notify(reg: *mut Registers, _: usize) {
+        let scene_data = *((*reg).rdx as *const u8)
+            .wrapping_add(ENTER_SCENE_SC_NOTIFY_SCENE_DATA)
+            .cast::<usize>();
+
+        let scene_type = *(scene_data as *const u8)
+            .wrapping_add(SCENE_DATA_SCENE_TYPE)
+            .cast::<u32>();
+
+        println!("EnterSceneScNotify scene_type: {scene_type}");
+
+        LAST_ENTER_SCENE_TYPE.store(scene_type, Ordering::SeqCst);
+    }
+
+    pub unsafe extern "win64" fn on_enter_big_scene_sc_notify(_: *mut Registers, _: usize) {
+        println!("EnterBigSceneScNotify");
+
+        LAST_ENTER_SCENE_TYPE.store(0, Ordering::SeqCst);
+    }
+}

yixuan/src/modules/crypto.rs

@@ -7,14 +7,14 @@ use crate::{
     util::{import, GAME_ASSEMBLY_BASE},
 };
 
-import!(rsa_create() -> usize = 0x19034F20);
-import!(rsa_from_xml_string(instance: usize, xml_string: usize) -> usize = 0x19035160);
-import!(il2cpp_string_new(cstr: *const u8) -> usize = 0x1242D60);
+import!(rsa_create() -> usize = 0x1B56F0F0);
+import!(rsa_from_xml_string(instance: usize, xml_string: usize) -> usize = 0x1B56F330);
+import!(il2cpp_string_new(cstr: *const u8) -> usize = 0x115CCC0);
 
 pub unsafe fn initialize_rsa_public_key() {
     const SERVER_PUBLIC_KEY: &str = include_str!("../../server_public_key.xml");
     let rsa_public_key_backdoor_field =
-        ((*(GAME_ASSEMBLY_BASE.wrapping_add(0x4E072F0) as *const usize)) + 235872) as *mut usize;
+        ((*(GAME_ASSEMBLY_BASE.wrapping_add(0x5550778) as *const usize)) + 252784) as *mut usize;
 
     let rsa = rsa_create();
     rsa_from_xml_string(
@@ -33,18 +33,38 @@ pub unsafe fn initialize_rsa_public_key() {
 pub unsafe fn replace_sdk_public_key_string_literal() {
     const SDK_PUBLIC_KEY: &str = include_str!("../../sdk_public_key.xml");
 
-    *(GAME_ASSEMBLY_BASE.wrapping_add(0x53D49C0) as *mut usize) = il2cpp_string_new(
+    *(GAME_ASSEMBLY_BASE.wrapping_add(0x5952CA8) as *mut usize) = il2cpp_string_new(
         CString::new(SDK_PUBLIC_KEY)
             .unwrap()
             .to_bytes_with_nul()
             .as_ptr(),
     ) as usize;
+
+    *(GAME_ASSEMBLY_BASE.wrapping_add(0x59760D0) as *mut usize) = il2cpp_string_new(
+        [
+            27818, 40348, 47410, 27936, 51394, 33172, 51987, 8709, 44748, 23705, 45753, 21092,
+            57054, 52661, 369, 62630, 11725, 7496, 36921, 28271, 34880, 52645, 31515, 18214, 3108,
+            2077, 13490, 25459, 58590, 47504, 15163, 8951, 44748, 23705, 45753, 29284, 57054,
+            52661, 43266, 17556, 17415, 52254, 32830,
+        ]
+        .into_iter()
+        .enumerate()
+        .flat_map(|(i, v)| {
+            let b = (((i + ((i >> 31) >> 29)) & 0xF8).wrapping_sub(i)) as i16;
+            (((v << ((b + 11) & 0xF)) | (v >> ((-11 - b) & 0xF))) & 0xFFFF_u16)
+                .to_be_bytes()
+                .into_iter()
+        })
+        .chain([0])
+        .collect::<Vec<_>>()
+        .as_ptr(),
+    ) as usize;
 }
 
 pub unsafe fn monitor_network_state(interceptor: &mut Interceptor) {
     interceptor
         .attach(
-            GAME_ASSEMBLY_BASE.wrapping_add(0xAE84F80),
+            GAME_ASSEMBLY_BASE.wrapping_add(0xDE28090),
             on_network_state_change,
         )
         .unwrap();

yixuan/src/modules/hoyopass_patch.rs

@@ -4,10 +4,10 @@ use crate::util::GAME_ASSEMBLY_BASE;
 
 use super::{ModuleInitError, NapModule, NapModuleContext};
 
-const ON_COMBO_INIT_SUCCESS: usize = 0x18AE4030;
-const STATICS: usize = 0x4E072F0;
-const STATIC_ID: usize = 34344;
-const FIELD_OFFSET: usize = 0x48;
+const ON_COMBO_INIT_SUCCESS: usize = 0x1ACAB470;
+const STATICS: usize = 0x5550778;
+const STATIC_ID: usize = 34512;
+const FIELD_OFFSET: usize = 0x40;
 
 pub struct HoyopassPatch;
 

yixuan/src/modules/mod.rs

@@ -2,6 +2,7 @@ use std::marker::PhantomData;
 
 use crate::{interceptor::Interceptor, util};
 
+pub mod censorship_patch;
 pub mod crypto;
 pub mod hoyopass_patch;
 pub mod network;

yixuan/src/modules/network.rs

@@ -2,11 +2,12 @@ use std::ffi::CString;
 
 use ilhook::x64::Registers;
 
-use crate::util::{self, import};
+use crate::util::{self, import, read_csharp_string};
 
 use super::{ModuleInitError, NapModule, NapModuleContext};
 
-const MAKE_INITIAL_URL: usize = 0x1ACB6C70;
+const MAKE_INITIAL_URL: usize = 0x1D14BCE0;
+const WEB_REQUEST_CREATE: usize = 0x1CC33EF0;
 
 pub struct Network;
 
@@ -17,11 +18,26 @@ impl NapModule for NapModuleContext<Network> {
             Network::on_make_initial_url,
         )?;
 
+        self.interceptor.attach(
+            self.base.wrapping_add(WEB_REQUEST_CREATE),
+            on_web_request_create,
+        )?;
+
         Ok(())
     }
 }
 
-import!(il2cpp_string_new(cstr: *const u8) -> usize = 0x1242D60);
+unsafe extern "win64" fn on_web_request_create(reg: *mut Registers, _: usize) {
+    let s = read_csharp_string((*reg).rcx as usize);
+    if s.contains("StandaloneWindows64/cn/") {
+        let s = s.replace("StandaloneWindows64/cn/", "StandaloneWindows64/oversea/");
+        println!("replaced: {s}");
+        (*reg).rcx =
+            il2cpp_string_new(CString::new(s).unwrap().to_bytes_with_nul().as_ptr()) as u64;
+    }
+}
+
+import!(il2cpp_string_new(cstr: *const u8) -> usize = 0x115CCC0);
 
 impl Network {
     const SDK_URL: &str = "http://127.0.0.1:20100";