minecraft-pi-docker/mods/src/misc/misc.cpp

#include <string>
#include <fstream>
#include <streambuf>

#include <cstring>

#include <libreborn/libreborn.h>
#include <symbols/minecraft.h>

#include "../feature/feature.h"
#include "misc.h"

// Read Asset File
static AppPlatform_readAssetFile_return_value AppPlatform_readAssetFile_injection(__attribute__((unused)) unsigned char *app_platform, std::string const& path) {
    // Read File
    std::string full_path("./data/");
    full_path.append(path);
    std::ifstream stream(full_path);
    std::string str((std::istreambuf_iterator<char>(stream)), std::istreambuf_iterator<char>());
    // Return String
    AppPlatform_readAssetFile_return_value ret;
    ret.length = str.length();
    ret.data = strdup(str.c_str());
    return ret;
}

// Print Chat To Log
static bool Gui_addMessage_recursing = false;
static void Gui_addMessage_injection(unsigned char *gui, std::string const& text) {
    // Sanitize Message
    char *new_message = strdup(text.c_str());
    ALLOC_CHECK(new_message);
    sanitize_string(&new_message, -1, 1);

    // Process Message
    if (!Gui_addMessage_recursing) {
        // Start Recursing
        Gui_addMessage_recursing = true;

        // Print Log Message
        fprintf(stderr, "[CHAT]: %s\n", new_message);

        // Call Original Method
        (*Gui_addMessage)(gui, std::string(new_message));

        // End Recursing
        Gui_addMessage_recursing = false;
    } else {
        // Call Original Method
        (*Gui_addMessage)(gui, std::string(new_message));
    }

    // Free
    free(new_message);
}

// Init
void _init_misc_cpp() {
    // Implement AppPlatform::readAssetFile So Translations Work
    if (feature_has("Load Language Files", 1)) {
        overwrite((void *) AppPlatform_readAssetFile, (void *) AppPlatform_readAssetFile_injection);
    }

    // Print Chat To Log
    overwrite_calls((void *) Gui_addMessage, (void *) Gui_addMessage_injection);
}