Alas/blcrack/cracker/ui/hook.cpp

#include <spdlog/spdlog.h>
#include <android/input.h>
#include <dlfcn.h>
#include <EGL/egl.h>

#include "sol/sol.hpp"
#include "xhook/xhook.h"
#include "hook.hpp"
#include "ui.hpp"
#include "imgui/imgui.h"
#include "imgui/imgui_impl_android.h"
#include "imgui/imgui_impl_opengl3.h"

using eglSwapBuffers_fnT = EGLBoolean(EGLDisplay dpy, EGLSurface surface);
eglSwapBuffers_fnT* old_eglSwapBuffers = nullptr;

EGLBoolean my_eglSwapBuffers(EGLDisplay dpy, EGLSurface surface) {
    ui_eglSwapBuffers(dpy, surface);
    return old_eglSwapBuffers(dpy, surface);
}

#ifdef USE_32
using Input_fnT = int32_t(void* thiz, void* ex_ab, void* ex_ac);
#endif
#ifdef USE_64
using Input_fnT = int64_t(void* thiz, void* ex_ab, void* ex_ac);
#endif
Input_fnT* old_Input = nullptr;

#ifdef USE_32
int32_t my_Input(void* thiz, void* ex_ab, void* ex_ac)
#endif
#ifdef USE_64
int64_t my_Input(void* thiz, void* ex_ab, void* ex_ac)
#endif
{
    auto ret = old_Input(thiz, ex_ab, ex_ac);
    ImGui_ImplAndroid_HandleInputEvent((AInputEvent *) thiz);
    return ret;
}

#ifdef USE_32
using Consume_fnT = int32_t(void* thiz, void* arg1, bool arg2, long arg3, uint32_t* arg4, AInputEvent** input_event);
#endif
#ifdef USE_64
using Consume_fnT = int64_t(void* thiz, int64_t arg1, char arg2, int64_t arg3, uint32_t* arg4, AInputEvent** input_event);
#endif
Consume_fnT* old_Consume = nullptr;

#ifdef USE_32
int32_t my_Consume(void* thiz, void* arg1, bool arg2, long arg3, uint32_t* arg4, AInputEvent** input_event)
#endif
#ifdef USE_64
int64_t my_Consume(void* thiz, int64_t arg1, char arg2, int64_t arg3, uint32_t* arg4, AInputEvent** input_event)
#endif
{
    auto result = old_Consume(thiz, arg1, arg2, arg3, arg4, input_event);
    if(result != 0 || *input_event == nullptr)
        return result;
    ImGui_ImplAndroid_HandleInputEvent(*input_event);
    return result;
}

bool has_hooked = false;

#define android_InputConsumer_initializeMotionEvent "_ZN7android13InputConsumer21initializeMotionEventEPNS_11MotionEventEPKNS_12InputMessageE"
#define android_InputConsumer_consume "_ZN7android13InputConsumer7consumeEPNS_26InputEventFactoryInterfaceEblPjPPNS_10InputEventE"

void do_ui_hook() {
    if (has_hooked) {
        return;
    }

    auto sym_eglSwapBuffers_status = xhook_register(
        "libunity",
        "eglSwapBuffers",
        reinterpret_cast<void*>(my_eglSwapBuffers),
        reinterpret_cast<void **>(&old_eglSwapBuffers)
    );
    if (sym_eglSwapBuffers_status != 0) {
        SPDLOG_INFO("Hook eglSwapBuffers err: {}", sym_eglSwapBuffers_status);
    }

    auto sym_input_status = xhook_register(
        "libinput",
        android_InputConsumer_initializeMotionEvent,
        reinterpret_cast<void*>(my_Input),
        reinterpret_cast<void **>(&old_Input)
    );
    if (sym_input_status != 0) {
        SPDLOG_INFO("Hook android_InputConsumer_initializeMotionEvent err: {}", sym_input_status);
    }
    auto sys_consume_status = xhook_register(
        "libinput",
        android_InputConsumer_consume,
        reinterpret_cast<void*>(my_Consume),
        reinterpret_cast<void **>(&old_Consume)
    );
    if (sys_consume_status != 0) {
        SPDLOG_INFO("Hook android_InputConsumer_consume err: {}", sys_consume_status);
    }

    has_hooked = true;
    SPDLOG_INFO("Hook ingame ui done!");
}

void hook_game_setting_panel(lua_State* l) {
    sol::state_view lua(l);
    SPDLOG_INFO("Get SettingsNotificationPanel.OnItemSwitch");
    Lua::Function old = lua["SettingsNotificationPanel"]["OnItemSwitch"];
    SPDLOG_INFO("Replace SettingsNotificationPanel.OnItemSwitch");
    lua["SettingsNotificationPanel"]["OnItemSwitch"] = [old](sol::this_state L, Lua::VariadicArgs args) {
        Lua::Table config_into = args[1];
        int config_id = config_into["id"];

        if (config_id == 4) {
            bool is_enable_ui = args[2];
            is_enable_ui = !is_enable_ui;
            if (is_enable_ui) {
                do_ui_hook();
                CrackerUI::get_instance().show_ui();
            } else {
                CrackerUI::get_instance().close_ui();
            }
        }
        old(L, args);
    };
}

bool g_is_game_loaded = false;
bool g_is_panel_loaded = false;
lua_State* g_target_L = nullptr;

int (*old_luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz, const char *name);
int my_luaL_loadbuffer(lua_State *L, const char *buff, size_t sz,const char *name) {
    auto ret = old_luaL_loadbuffer(L, buff, sz, name);
    if (!g_is_panel_loaded) {
        if (name == nullptr) {
            return ret;
        }
        if (name[0] != '@') {
            return ret;
        }
        if (strstr(name, "SettingsNotificationPanel") != nullptr) {
            g_target_L = L;
            g_is_panel_loaded = true;
        }
    }
    return ret;
}

int (*old_lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc);
int my_lua_pcall (lua_State *L, int nargs, int nresults, int errfunc) {
    auto ret = old_lua_pcall(L, nargs, nresults, errfunc);
    if (g_is_panel_loaded && !g_is_game_loaded && g_target_L == L) {
        hook_game_setting_panel(L);
        g_is_game_loaded = true;
    }
    return ret;
}

void hook_game_lua_for_ingame_ui() {
    auto sym_luaL_loadbuffer_status = xhook_register(
        "libtolua",
        "luaL_loadbuffer",
        reinterpret_cast<void*>(my_luaL_loadbuffer),
        reinterpret_cast<void **>(&old_luaL_loadbuffer)
    );
    if (sym_luaL_loadbuffer_status != 0) {
        SPDLOG_INFO("HOOK luaL_loadbuffer err: {}", sym_luaL_loadbuffer_status);
    }

    auto sym_lua_pcall_status = xhook_register(
        "libtolua",
        "lua_pcall",
        reinterpret_cast<void*>(my_lua_pcall),
        reinterpret_cast<void **>(&old_lua_pcall)
    );
    if (sym_lua_pcall_status != 0) {
        SPDLOG_INFO("HOOK lua_pcall err: {}", sym_lua_pcall_status);
    }

    do_ui_hook();

    auto commit_status = xhook_refresh(1);
    if (commit_status != 0) {
        SPDLOG_INFO("Commit hook err: {}", commit_status);
    }
}