commit d3f9d03dcfd8631d79903abe46b1dc93c46e79b6
parent b18c96912524e433cb1877120b492c8d212bfa98
Author: rhunk <101876869+rhunk@users.noreply.github.com>
Date: Sat, 27 Jul 2024 19:51:41 +0200
feat(native): custom font hook
Diffstat:
4 files changed, 39 insertions(+), 5 deletions(-)
diff --git a/native/rust/src/lib.rs b/native/rust/src/lib.rs
@@ -13,7 +13,7 @@ mod modules;
use android_logger::Config;
use log::LevelFilter;
-use modules::{composer_hook, duplex_hook, fstat_hook, linker_hook, sqlite_hook, unary_call_hook};
+use modules::{composer_hook, custom_font_hook, duplex_hook, fstat_hook, linker_hook, sqlite_hook, unary_call_hook};
use jni::objects::{JObject, JString};
use jni::sys::{jint, jstring, JNI_VERSION_1_6};
@@ -67,7 +67,8 @@ fn init(mut env: JNIEnv, _class: JObject, signature_cache: JString) -> jstring {
unary_call_hook::init(),
composer_hook::init(),
fstat_hook::init(),
- sqlite_hook::init()
+ sqlite_hook::init(),
+ custom_font_hook::init()
);
threads.into_iter().for_each(|t| t.join().unwrap());
diff --git a/native/rust/src/modules/custom_font_hook.rs b/native/rust/src/modules/custom_font_hook.rs
@@ -0,0 +1,31 @@
+use std::{ffi::CStr, fs};
+
+use crate::{config, def_hook, dobby_hook_sym};
+
+def_hook!(
+ open_hook,
+ i32,
+ |path: *const u8, flags: i32| {
+ let mut path = path;
+
+ if let Ok(pathname) = CStr::from_ptr(path).to_str() {
+ if pathname == "/system/fonts/NotoColorEmoji.ttf" {
+ if let Some(font_path) = config::native_config().custom_emoji_font_path {
+ if fs::metadata(&font_path).is_ok() {
+ path = (font_path.to_owned() + "\0").as_ptr();
+ debug!("open {}", font_path);
+ } else {
+ warn!("custom emoji font path does not exist: {}", font_path);
+ }
+ }
+ }
+ }
+
+ open_hook_original.unwrap()(path, flags)
+ }
+);
+
+
+pub fn init() {
+ dobby_hook_sym!("libc.so", "open", open_hook);
+}+
\ No newline at end of file
diff --git a/native/rust/src/modules/linker_hook.rs b/native/rust/src/modules/linker_hook.rs
@@ -15,7 +15,7 @@ def_hook!(
let pathname_str = CStr::from_ptr(pathname).to_str().unwrap().to_string();
if let Some(content) = SHARED_LIBRARIES.lock().unwrap().remove(&pathname_str) {
- let memfd = libc::syscall(libc::SYS_memfd_create, "me.rhunk.snapenhance\0".as_ptr(), 0) as i32;
+ let memfd = libc::syscall(libc::SYS_memfd_create, "jit-cache\0".as_ptr(), 0) as i32;
let content = content.into_boxed_slice();
if libc::write(memfd, content.as_ptr() as *const c_void, content.len() as libc::size_t) == -1 {
diff --git a/native/rust/src/modules/mod.rs b/native/rust/src/modules/mod.rs
@@ -3,4 +3,5 @@ pub mod duplex_hook;
pub mod sqlite_hook;
pub mod fstat_hook;
pub mod unary_call_hook;
-pub mod composer_hook;-
\ No newline at end of file
+pub mod composer_hook;
+pub mod custom_font_hook;+
\ No newline at end of file
