Add Server Commands
This commit is contained in:
parent
9a4efef9f1
commit
10314afdc3
@ -83,6 +83,8 @@ extern "C" {
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typedef unsigned char *(*ItemInstance_t)(unsigned char *item_instance, unsigned char *item);
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static ItemInstance_t ItemInstance_item = (ItemInstance_t) 0x9992c;
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static ItemInstance_t ItemInstance_tile = (ItemInstance_t) 0x998e4;
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typedef unsigned char *(*ItemInstance_damage_t)(unsigned char *item_instance, unsigned char *item, int32_t count, int32_t damage);
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static ItemInstance_damage_t ItemInstance_damage = (ItemInstance_damage_t) 0x99960;
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typedef int32_t (*FillingContainer_addItem_t)(unsigned char *filling_container, unsigned char *item_instance);
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static FillingContainer_addItem_t FillingContainer_addItem = (FillingContainer_addItem_t) 0x92aa0;
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@ -95,16 +97,20 @@ extern "C" {
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}
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// Items
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static unsigned char **item_sign = (unsigned char **) 0x17bba4;
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static unsigned char **item_flintAndSteel = (unsigned char **) 0x17ba70;
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static unsigned char **item_snowball = (unsigned char **) 0x17bbb0;
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static unsigned char **item_shears = (unsigned char **) 0x17bbf0;
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static unsigned char **item_sign = (unsigned char **) 0x17bba4;
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static unsigned char **item_egg = (unsigned char **) 0x17bbd0;
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static unsigned char **item_dye_powder = (unsigned char **) 0x17bbe0;
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// Tiles
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static unsigned char **tile_water = (unsigned char **) 0x181b3c;
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static unsigned char **tile_lava = (unsigned char **) 0x181cc8;
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static unsigned char **tile_calmWater = (unsigned char **) 0x181b40;
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static unsigned char **tile_calmLava = (unsigned char **) 0x181ccc;
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static unsigned char **tile_glowingObsidian = (unsigned char **) 0x181dcc;
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static unsigned char **tile_topSnow = (unsigned char **) 0x181b30;
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static unsigned char **tile_ice = (unsigned char **) 0x181d80;
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static unsigned char **tile_invisible_bedrock = (unsigned char **) 0x181d94;
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static int32_t FillingContainer_addItem_injection(unsigned char *filling_container, unsigned char *item_instance) {
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@ -118,13 +124,21 @@ extern "C" {
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// Add Items
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inventory_add_item(filling_container, *item_flintAndSteel, false);
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inventory_add_item(filling_container, *item_snowball, false);
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inventory_add_item(filling_container, *item_egg, false);
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inventory_add_item(filling_container, *item_shears, false);
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for (int i = 0; i < 15; i++) {
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unsigned char *item_instance = (unsigned char *) ::operator new(0xc);
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item_instance = (*ItemInstance_damage)(item_instance, *item_dye_powder, 1, i);
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(*FillingContainer_addItem)(filling_container, item_instance);
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}
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// Add Tiles
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inventory_add_item(filling_container, *tile_water, true);
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inventory_add_item(filling_container, *tile_lava, true);
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inventory_add_item(filling_container, *tile_calmWater, true);
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inventory_add_item(filling_container, *tile_calmLava, true);
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inventory_add_item(filling_container, *tile_glowingObsidian, true);
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inventory_add_item(filling_container, *tile_topSnow, true);
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inventory_add_item(filling_container, *tile_ice, true);
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inventory_add_item(filling_container, *tile_invisible_bedrock, true);
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}
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@ -4,9 +4,12 @@
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#include <cstdio>
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#include <csignal>
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#include <fstream>
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#include <vector>
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#include <pthread.h>
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#include <unistd.h>
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#include <netinet/in.h>
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#include <SDL/SDL_events.h>
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@ -102,41 +105,34 @@ static void *read_stdin_thread(__attribute__((unused)) void *data) {
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}
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}
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typedef void (*ServerSideNetworkHandler_displayGameMessage_t)(unsigned char *server_side_network_handler, std::string const& message);
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static ServerSideNetworkHandler_displayGameMessage_t ServerSideNetworkHandler_displayGameMessage = (ServerSideNetworkHandler_displayGameMessage_t) 0x750c4;
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// Create/Start World
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static void start_world(unsigned char *minecraft) {
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INFO("%s", "Starting Minecraft: Pi Edition Dedicated Server");
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// Runs Every Tick
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LevelSettings settings;
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settings.game_type = get_server_properties().get_int("game-mode", DEFAULT_GAME_MODE);;
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std::string seed_str = get_server_properties().get_string("seed", DEFAULT_SEED);
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int32_t seed = seed_str.length() > 0 ? std::stoi(seed_str) : time(NULL);
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settings.seed = seed;
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std::string world_name = get_server_properties().get_string("world-name", DEFAULT_WORLD_NAME);
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(*Minecraft_selectLevel)(minecraft, world_name, world_name, settings);
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int port = get_server_properties().get_int("port", DEFAULT_PORT);
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(*Minecraft_hostMultiplayer)(minecraft, port);
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INFO("Listening On: %i", port);
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void *screen = ::operator new(0x4c);
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screen = (*ProgressScreen)((unsigned char *) screen);
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(*Minecraft_setScreen)(minecraft, (unsigned char *) screen);
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stored_minecraft = minecraft;
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}
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// Print Progress Reports
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static int last_progress = -1;
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static const char *last_message = NULL;
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static bool loaded = false;
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static void Minecraft_update_injection(unsigned char *minecraft) {
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// Create/Start World
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if (!loaded) {
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INFO("%s", "Starting Minecraft: Pi Edition Dedicated Server");
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LevelSettings settings;
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settings.game_type = get_server_properties().get_int("game-mode", DEFAULT_GAME_MODE);;
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std::string seed_str = get_server_properties().get_string("seed", DEFAULT_SEED);
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int32_t seed = seed_str.length() > 0 ? std::stoi(seed_str) : time(NULL);
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settings.seed = seed;
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std::string world_name = get_server_properties().get_string("world-name", DEFAULT_WORLD_NAME);
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(*Minecraft_selectLevel)(minecraft, world_name, world_name, settings);
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int port = get_server_properties().get_int("port", DEFAULT_PORT);
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(*Minecraft_hostMultiplayer)(minecraft, port);
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INFO("Listening On: %i", port);
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void *screen = ::operator new(0x4c);
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screen = (*ProgressScreen)((unsigned char *) screen);
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(*Minecraft_setScreen)(minecraft, (unsigned char *) screen);
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stored_minecraft = minecraft;
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loaded = true;
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}
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// Print Progress Message
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static void print_progress(unsigned char *minecraft) {
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const char *message = (*Minecraft_getProgressMessage)(minecraft);
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int32_t progress = *(int32_t *) (minecraft + 0xc60);
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if ((*Minecraft_isLevelGenerated)(minecraft)) {
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@ -160,30 +156,100 @@ static void Minecraft_update_injection(unsigned char *minecraft) {
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}
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}
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}
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}
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// Call Original Method
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revert_overwrite((void *) Minecraft_update, Minecraft_update_original);
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(*Minecraft_update)(minecraft);
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revert_overwrite((void *) Minecraft_update, Minecraft_update_original);
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struct RakNet_RakNetGUID {
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uint64_t g;
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unsigned short SystemIndex;
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};
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struct RakNet_SystemAddress {
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union {
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sockaddr_in addr4;
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} address;
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unsigned short debugPort;
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};
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typedef RakNet_SystemAddress (*RakNet_RakPeer_GetSystemAddressFromGuid_t)(unsigned char *rak_peer, RakNet_RakNetGUID guid);
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// Use STDIN
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if (stdin_buffer_complete) {
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if (stdin_buffer != NULL) {
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unsigned char *server_side_network_handler = *(unsigned char **) (minecraft + 0x174);
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if (server_side_network_handler != NULL) {
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char *message = NULL;
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// Format Message
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asprintf(&message, "[Server] %s", stdin_buffer);
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// Post Message To Chat
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(*ServerSideNetworkHandler_displayGameMessage)(server_side_network_handler, message);
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free(message);
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}
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typedef void (*ServerSideNetworkHandler_displayGameMessage_t)(unsigned char *server_side_network_handler, std::string const& message);
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static ServerSideNetworkHandler_displayGameMessage_t ServerSideNetworkHandler_displayGameMessage = (ServerSideNetworkHandler_displayGameMessage_t) 0x750c4;
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free((void *) stdin_buffer);
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stdin_buffer = NULL;
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typedef char *(*RakNet_SystemAddress_ToString_t)(RakNet_SystemAddress *system_address, bool print_delimiter, char delimiter);
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static RakNet_SystemAddress_ToString_t RakNet_SystemAddress_ToString = (RakNet_SystemAddress_ToString_t) 0xd6198;
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typedef void (*ServerSideNetworkHandler_onDisconnect_t)(unsigned char *server_side_network_handler, RakNet_RakNetGUID const& guid);
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static std::string get_banned_ips_file() {
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std::string file(getenv("HOME"));
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file.append("/.minecraft/banned-ips.txt");
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return file;
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}
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typedef void (*player_callback_t)(unsigned char *minecraft, std::string username, unsigned char *player);
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// Find Players With Username And Run Callback
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static void find_players(unsigned char *minecraft, std::string target_username, player_callback_t callback) {
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unsigned char *level = *(unsigned char **) (minecraft + 0x188);
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std::vector<unsigned char *> players = *(std::vector<unsigned char *> *) (level + 0x60);
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bool found_player = false;
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for (std::size_t i = 0; i < players.size(); i++) {
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// Iterate Players
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unsigned char *player = players[i];
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std::string username = *(std::string *) (player + 0xbf4);
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if (target_username == "" || username == target_username) {
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// Run Callback
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(*callback)(minecraft, username, player);
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found_player = true;
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}
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stdin_buffer_complete = false;
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}
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if (!found_player && target_username != "") {
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INFO("Invalid Player: %s", target_username.c_str());
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}
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}
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// Get IP From Player
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static char *get_player_ip(unsigned char *minecraft, unsigned char *player) {
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RakNet_RakNetGUID guid = *(RakNet_RakNetGUID *) (player + 0xc08);
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unsigned char *rak_net_instance = *(unsigned char **) (minecraft + 0x170);
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unsigned char *rak_peer = *(unsigned char **) (rak_net_instance + 0x4);
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unsigned char *rak_peer_vtable = *(unsigned char **) rak_peer;
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RakNet_RakPeer_GetSystemAddressFromGuid_t RakNet_RakPeer_GetSystemAddressFromGuid = *(RakNet_RakPeer_GetSystemAddressFromGuid_t *) (rak_peer_vtable + 0xd0);
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// Get SystemAddress
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RakNet_SystemAddress address = (*RakNet_RakPeer_GetSystemAddressFromGuid)(rak_peer, guid);
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// Get IP
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return (*RakNet_SystemAddress_ToString)(&address, false, '|');
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}
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// Ban Player
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static void ban_callback(unsigned char *minecraft, std::string username, unsigned char *player) {
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// Get IP
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char *ip = get_player_ip(minecraft, player);
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// Ban Player
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INFO("Banned: %s (%s)", username.c_str(), ip);
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// Write To File
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std::ofstream banned_ips_output(get_banned_ips_file(), std::ios_base::app);
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if (banned_ips_output) {
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if (banned_ips_output.good()) {
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banned_ips_output << ip <<'\n';
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}
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if (banned_ips_output.is_open()) {
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banned_ips_output.close();
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}
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}
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}
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// Kill Player
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typedef void (*Entity_die_t)(unsigned char *entity, unsigned char *cause);
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static void kill_callback(__attribute__((unused)) unsigned char *minecraft, __attribute__((unused)) std::string username, unsigned char *player) {
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unsigned char *player_vtable = *(unsigned char **) player;
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Entity_die_t Entity_die = *(Entity_die_t *) (player_vtable + 0x130);
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(*Entity_die)(player, NULL);
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INFO("Killed: %s", username.c_str());
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}
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// List Player
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static void list_callback(unsigned char *minecraft, std::string username, unsigned char *player) {
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INFO(" - %s (%s)", username.c_str(), get_player_ip(minecraft, player));
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}
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typedef void (*Level_saveLevelData_t)(unsigned char *level);
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@ -200,20 +266,7 @@ static void Level_saveLevelData_injection(unsigned char *level) {
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revert_overwrite((void *) Level_saveLevelData, Level_saveLevelData_original);
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}
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typedef void (*Gui_addMessage_t)(unsigned char *gui, std::string const& text);
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static Gui_addMessage_t Gui_addMessage = (Gui_addMessage_t) 0x27820;
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static void *Gui_addMessage_original = NULL;
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static void Gui_addMessage_injection(unsigned char *gui, std::string const& text) {
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// Print Log Message
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fprintf(stderr, "[CHAT]: %s\n", text.c_str());
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// Call Original Method
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revert_overwrite((void *) Gui_addMessage, Gui_addMessage_original);
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(*Gui_addMessage)(gui, text);
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revert_overwrite((void *) Gui_addMessage, Gui_addMessage_original);
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}
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// Stop Server
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static void exit_handler(__attribute__((unused)) int data) {
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INFO("%s", "Stopping Server");
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if (stored_minecraft != NULL) {
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@ -229,6 +282,137 @@ static void exit_handler(__attribute__((unused)) int data) {
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SDL_PushEvent(&event);
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}
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// Handle Commands
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static void handle_commands(unsigned char *minecraft) {
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if (stdin_buffer_complete) {
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if (stdin_buffer != NULL) {
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unsigned char *server_side_network_handler = *(unsigned char **) (minecraft + 0x174);
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if (server_side_network_handler != NULL) {
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std::string data((char *) stdin_buffer);
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static std::string ban_command("ban ");
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static std::string say_command("say ");
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static std::string kill_command("kill ");
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static std::string list_command("list");
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static std::string stop_command("stop");
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static std::string help_command("help");
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if (data.rfind(ban_command, 0) == 0) {
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// IP-Ban Target Username
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std::string ban_username = data.substr(ban_command.length());
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find_players(minecraft, ban_username, ban_callback);
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} else if (data.rfind(kill_command, 0) == 0) {
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// Kill Target Username
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std::string kill_username = data.substr(kill_command.length());
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find_players(minecraft, kill_username, kill_callback);
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} else if (data.rfind(say_command, 0) == 0) {
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// Format Message
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std::string message = "[Server] " + data.substr(say_command.length());
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// Post Message To Chat
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(*ServerSideNetworkHandler_displayGameMessage)(server_side_network_handler, message);
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} else if (data == list_command) {
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// List Players
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INFO("%s", "All Players:");
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find_players(minecraft, "", list_callback);
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} else if (data == stop_command) {
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// Stop Server
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exit_handler(-1);
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} else if (data == help_command) {
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INFO("%s", "All Commands:");
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INFO("%s", " ban <Username> - IP-Ban All Players With Specifed Username");
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INFO("%s", " kill <Username> - Kill All Players With Specifed Username");
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INFO("%s", " say <Message> - Print Specified Message To Chat");
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INFO("%s", " list - List All Players");
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INFO("%s", " stop - Stop Server");
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INFO("%s", " help - Print This Message");
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} else {
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INFO("Invalid Command: %s", data.c_str());
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}
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}
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free((void *) stdin_buffer);
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stdin_buffer = NULL;
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}
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stdin_buffer_complete = false;
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}
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}
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// Runs Every Tick
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static bool loaded = false;
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static void Minecraft_update_injection(unsigned char *minecraft) {
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// Create/Start World
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if (!loaded) {
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start_world(minecraft);
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loaded = true;
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}
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// Print Progress Reports
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print_progress(minecraft);
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// Call Original Method
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revert_overwrite((void *) Minecraft_update, Minecraft_update_original);
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(*Minecraft_update)(minecraft);
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revert_overwrite((void *) Minecraft_update, Minecraft_update_original);
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// Handle Commands
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handle_commands(minecraft);
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}
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typedef void (*Gui_addMessage_t)(unsigned char *gui, std::string const& text);
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static Gui_addMessage_t Gui_addMessage = (Gui_addMessage_t) 0x27820;
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static void *Gui_addMessage_original = NULL;
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static void Gui_addMessage_injection(unsigned char *gui, std::string const& text) {
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// Print Log Message
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fprintf(stderr, "[CHAT]: %s\n", text.c_str());
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// Call Original Method
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revert_overwrite((void *) Gui_addMessage, Gui_addMessage_original);
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(*Gui_addMessage)(gui, text);
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revert_overwrite((void *) Gui_addMessage, Gui_addMessage_original);
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}
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typedef bool (*RakNet_RakPeer_IsBanned_t)(unsigned char *rakpeer, const char *ip);
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static RakNet_RakPeer_IsBanned_t RakNet_RakPeer_IsBanned = (RakNet_RakPeer_IsBanned_t) 0xda3b4;
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static void *RakNet_RakPeer_IsBanned_original = NULL;
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static bool RakNet_RakPeer_IsBanned_injection(unsigned char *rakpeer, const char *ip) {
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// Call Original
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revert_overwrite((void *) RakNet_RakPeer_IsBanned, RakNet_RakPeer_IsBanned_original);
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bool ret = (*RakNet_RakPeer_IsBanned)(rakpeer, ip);
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revert_overwrite((void *) RakNet_RakPeer_IsBanned, RakNet_RakPeer_IsBanned_original);
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if (ret) {
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return true;
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} else {
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// Check banned-ips.txt
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std::string banned_ips_file_path = get_banned_ips_file();
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std::ifstream banned_ips_file(banned_ips_file_path);
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if (banned_ips_file) {
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bool ret = false;
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if (banned_ips_file.good()) {
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std::string line;
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while (std::getline(banned_ips_file, line)) {
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if (line.length() > 0) {
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if (line[0] == '#') {
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continue;
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}
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if (strcmp(line.c_str(), ip) == 0) {
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ret = true;
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break;
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}
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}
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}
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}
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if (banned_ips_file.is_open()) {
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banned_ips_file.close();
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}
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return ret;
|
||||
} else {
|
||||
ERR("%s", "Unable To Read banned-ips.txt");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const char *server_get_motd() {
|
||||
return get_server_properties().get_string("motd", DEFAULT_MOTD).c_str();
|
||||
}
|
||||
@ -253,7 +437,7 @@ void server_init() {
|
||||
|
||||
std::ifstream properties_file(file);
|
||||
|
||||
if (!properties_file || !properties_file.is_open()) {
|
||||
if (!properties_file || !properties_file.good()) {
|
||||
// Write Defaults
|
||||
std::ofstream properties_file_output(file);
|
||||
properties_file_output << "# Message Of The Day\n";
|
||||
@ -284,6 +468,19 @@ void server_init() {
|
||||
|
||||
properties_file.close();
|
||||
|
||||
// Create Empty Banned IPs File
|
||||
std::string banned_ips_file_path = get_banned_ips_file();
|
||||
std::ifstream banned_ips_file(banned_ips_file_path);
|
||||
if (!banned_ips_file || !banned_ips_file.good()) {
|
||||
// Write Default
|
||||
std::ofstream banned_ips_output(banned_ips_file_path);
|
||||
banned_ips_output << "# List Of Banned IPs; Each Line Is One IP Address\n";
|
||||
banned_ips_output.close();
|
||||
}
|
||||
if (banned_ips_file.is_open()) {
|
||||
banned_ips_file.close();
|
||||
}
|
||||
|
||||
// Prevent Main Player From Loading
|
||||
unsigned char player_patch[4] = {0x00, 0x20, 0xa0, 0xe3};
|
||||
patch((void *) 0x1685c, player_patch);
|
||||
@ -301,6 +498,8 @@ void server_init() {
|
||||
// Set Max Players
|
||||
unsigned char max_players_patch[4] = {server_get_max_players(), 0x30, 0xa0, 0xe3};
|
||||
patch((void *) 0x166d0, max_players_patch);
|
||||
// Custom Banned IP List
|
||||
RakNet_RakPeer_IsBanned_original = overwrite((void *) RakNet_RakPeer_IsBanned, (void *) RakNet_RakPeer_IsBanned_injection);
|
||||
|
||||
// Start Reading STDIN
|
||||
pthread_t read_stdin_thread_obj;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user