wxMASSManager/MassManager/MassManager.cpp

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// wxMASSManager
// Copyright (C) 2020 Guillaume Jacquemin
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#include <cstring>
#include <algorithm>
#include <wx/regex.h>
#include <wx/wfstream.h>
#include <wx/zipstrm.h>
#include <shlobj.h>
#include <wtsapi32.h>
#include <Corrade/Containers/Array.h>
#include <Corrade/Utility/Directory.h>
#include <Corrade/Utility/FormatStl.h>
#include <Corrade/Utility/String.h>
#include <Corrade/Utility/Unicode.h>
#include "MassManager.h"
constexpr unsigned char mass_name_locator[] = { 'N', 'a', 'm', 'e', '_', '4', '5', '_', 'A', '0', '3', '7', 'C', '5', 'D', '5', '4', 'E', '5', '3', '4', '5', '6', '4', '0', '7', 'B', 'D', 'F', '0', '9', '1', '3', '4', '4', '5', '2', '9', 'B', 'B', '\0', 0x0C, '\0', '\0', '\0', 'S', 't', 'r', 'P', 'r', 'o', 'p', 'e', 'r', 't', 'y', '\0' };
constexpr unsigned char steamid_locator[] = { 'A', 'c', 'c', 'o', 'u', 'n', 't', '\0', 0x0C, '\0', '\0', '\0', 'S', 't', 'r', 'P', 'r', 'o', 'p', 'e', 'r', 't', 'y', '\0' };
constexpr unsigned char active_slot_locator[] = { 'A', 'c', 't', 'i', 'v', 'e', 'F', 'r', 'a', 'm', 'e', 'S', 'l', 'o', 't', '\0', 0x0C, '\0', '\0', '\0', 'I', 'n', 't', 'P', 'r', 'o', 'p', 'e', 'r', 't', 'y', '\0' };
MassManager::MassManager() {
_ready = findSaveDirectory() && findSteamId();
if(!_ready) {
return;
}
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_executableLocation = Utility::Directory::path(Utility::Directory::executableLocation());
_stagingAreaDirectory = Utility::Directory::join(_executableLocation, "staging");
_profileSaveName = Utility::formatString("Profile{}.sav", _steamId);
for(int i = 0; i < 32; ++i) {
_hangars[i]._filename = Utility::formatString("Unit{:.2d}{}.sav", i, _steamId);
refreshHangar(i);
}
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initialiseStagingArea();
}
auto MassManager::ready() -> bool {
return _ready;
}
auto MassManager::lastError() -> std::string const& {
return _lastError;
}
auto MassManager::saveDirectory() -> std::string const& {
return _saveDirectory;
}
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auto MassManager::stagingAreaDirectory() -> std::string const& {
return _stagingAreaDirectory;
}
auto MassManager::steamId() -> std::string const& {
return _steamId;
}
auto MassManager::profileSaveName() -> std::string const& {
return _profileSaveName;
}
auto MassManager::checkGameState() -> GameState {
WTS_PROCESS_INFOW* process_infos = nullptr;
unsigned long process_count = 0;
if(WTSEnumerateProcessesW(WTS_CURRENT_SERVER_HANDLE, 0, 1, &process_infos, &process_count)) {
for(unsigned long i = 0; i < process_count; ++i) {
if(std::wcscmp(process_infos[i].pProcessName, L"MASS_Builder-Win64-Shipping.exe") == 0) {
_gameState = GameState::Running;
break;
}
else {
_gameState = GameState::NotRunning;
}
}
}
else {
_gameState = GameState::Unknown;
}
if(process_infos != nullptr) {
WTSFreeMemory(process_infos);
process_infos = nullptr;
}
return _gameState;
}
auto MassManager::gameState() -> GameState {
return _gameState;
}
auto MassManager::getActiveSlot() -> char{
auto mmap = Utility::Directory::mapRead(Utility::Directory::join(_saveDirectory, _profileSaveName));
auto iter = std::search(mmap.begin(), mmap.end(), &active_slot_locator[0], &active_slot_locator[31]);
if(iter == mmap.end()) {
if(std::strncmp(&mmap[0x3F6], "Credit", 6) == 0) {
_activeSlot = 0;
}
else {
_lastError = "The profile save seems to be corrupted or the game didn't release the handle on the file.";
_activeSlot = -1;
}
}
else {
_activeSlot = *(iter + 41);
}
return _activeSlot;
}
auto MassManager::activeSlot() -> char {
return _activeSlot;
}
auto MassManager::importMass(const std::string& source, int hangar) -> bool {
if(hangar < 0 && hangar >= 32) {
_lastError = "Hangar out of range in MassManager::importMass()";
return false;
}
Utility::Directory::copy(source, source + ".tmp");
{
auto mmap = Utility::Directory::map(source + ".tmp");
auto iter = std::search(mmap.begin(), mmap.end(), &steamid_locator[0], &steamid_locator[23]);
if(iter == mmap.end()) {
_lastError = "The M.A.S.S. file at " + source + " seems to be corrupt.";
Utility::Directory::rm(source + ".tmp");
return false;
}
iter += 37;
if(std::strncmp(iter, _steamId.c_str(), _steamId.length()) != 0) {
for(int i = 0; i < 17; ++i) {
*(iter + i) = _steamId[i];
}
}
}
const std::string dest = Utility::Directory::join(_saveDirectory, _hangars[hangar]._filename);
if(Utility::Directory::exists(dest)) {
Utility::Directory::rm(dest);
}
Utility::Directory::move(source + ".tmp", dest);
return true;
}
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auto MassManager::importMass(int staged_index, int hangar) -> bool {
if(hangar < 0 && hangar >= 32) {
_lastError = "Hangar out of range in MassManager::importMass()";
return false;
}
int i = 0;
for(const auto& mass_info : _stagedMasses) {
if(i != staged_index) {
++i;
continue;
}
std::string source = Utility::Directory::join(_stagingAreaDirectory, mass_info.first);
Utility::Directory::copy(source, source + ".tmp");
{
auto mmap = Utility::Directory::map(source + ".tmp");
auto iter = std::search(mmap.begin(), mmap.end(), &steamid_locator[0], &steamid_locator[23]);
if(iter == mmap.end()) {
_lastError = "The M.A.S.S. file at " + source + " seems to be corrupt.";
Utility::Directory::rm(source + ".tmp");
return false;
}
iter += 37;
if(std::strncmp(iter, _steamId.c_str(), _steamId.length()) != 0) {
for(int i = 0; i < 17; ++i) {
*(iter + i) = _steamId[i];
}
}
}
const std::string dest = Utility::Directory::join(_saveDirectory, _hangars[hangar]._filename);
if(Utility::Directory::exists(dest)) {
Utility::Directory::rm(dest);
}
Utility::Directory::move(source + ".tmp", dest);
return true;
}
_lastError = "";
return false;
}
auto MassManager::exportMass(int hangar) -> bool {
if(hangar < 0 && hangar >= 32) {
_lastError = "Hangar out of range in MassManager::exportMass()";
return false;
}
if(_hangars[hangar]._state == HangarState::Empty ||
_hangars[hangar]._state == HangarState::Invalid) {
_lastError = Utility::formatString("There is no valid data to export in hangar {:.2d}", hangar);
}
auto name = _hangars[hangar]._massName;
if(!name) {
_lastError = "There was an unexpected error in MassManager::exportMass()";
return false;
}
std::string source = Utility::Directory::join(_saveDirectory, _hangars[hangar]._filename);
std::string dest = Utility::Directory::join(_stagingAreaDirectory, Utility::formatString("{}_{}.sav", _steamId, *(_hangars[hangar]._massName)));
if(!Utility::Directory::copy(source, dest)) {
_lastError = Utility::formatString("Couldn't export data from hangar {:.2d} to {}", hangar, dest);
return false;
}
return true;
}
auto MassManager::moveMass(int source, int destination) -> bool {
if(source < 0 && source >= 32) {
_lastError = "Source hangar out of range in MassManager::moveMass()";
return false;
}
if(destination < 0 && destination >= 32) {
_lastError = "Destination hangar out of range in MassManager::moveMass()";
return false;
}
std::string source_file = Utility::Directory::join(_saveDirectory, _hangars[source]._filename);
std::string dest_file = Utility::Directory::join(_saveDirectory, _hangars[destination]._filename);
HangarState dest_state = _hangars[destination]._state;
switch(dest_state) {
case HangarState::Empty:
break;
case HangarState::Invalid:
Utility::Directory::rm(dest_file);
break;
case HangarState::Filled:
Utility::Directory::move(dest_file, dest_file + ".tmp");
break;
}
Utility::Directory::move(source_file, dest_file);
if(dest_state == HangarState::Filled) {
Utility::Directory::move(dest_file + ".tmp", source_file);
}
return true;
}
auto MassManager::deleteMass(int hangar) -> bool {
if(hangar < 0 && hangar >= 32) {
_lastError = "Hangar number out of range in MassManager::deleteMass()";
return false;
}
std::string file = Utility::Directory::join(_saveDirectory, _hangars[hangar]._filename);
if(Utility::Directory::exists(file)) {
if(!Utility::Directory::rm(file)) {
_lastError = "The M.A.S.S. file couldn't be deleted.";
return false;
}
}
return true;
}
auto MassManager::backupSaves(const std::string& filename) -> bool {
if(filename.empty() || (filename.length() < 5 && !Utility::String::endsWith(filename, ".zip"))) {
_lastError = "Invalid filename " + filename + " in MassManager::backupSaves()";
return false;
}
if(Utility::Directory::exists(filename)) {
if(!Utility::Directory::rm(filename)) {
_lastError = "Couldn't overwrite " + filename + " in MassManager::backupSaves()";
}
}
wxFFileOutputStream out{filename};
wxZipOutputStream zip{out};
{
zip.PutNextEntry(_profileSaveName);
wxFFileInputStream profile_stream{Utility::Directory::toNativeSeparators(Utility::Directory::join(_saveDirectory, _profileSaveName)), "rb"};
zip.Write(profile_stream);
}
for(int i = 0; i < 32; ++i) {
std::string unit_file = Utility::Directory::join(_saveDirectory, _hangars[i]._filename);
if(Utility::Directory::exists(unit_file)) {
zip.PutNextEntry(_hangars[i]._filename);
wxFFileInputStream unit_stream{Utility::Directory::toNativeSeparators(unit_file)};
zip.Write(unit_stream);
}
}
return true;
}
void MassManager::refreshHangar(int hangar) {
if(hangar < 0 && hangar >= 32) {
return;
}
std::string unit_file = Utility::Directory::join(_saveDirectory, _hangars[hangar]._filename);
if(!Utility::Directory::exists(unit_file)) {
_hangars[hangar]._state = HangarState::Empty;
_hangars[hangar]._massName = Containers::NullOpt;
}
else {
Containers::Optional<std::string> name = getMassName(unit_file);
_hangars[hangar]._state = name ? HangarState::Filled : HangarState::Invalid;
_hangars[hangar]._massName = name;
}
}
auto MassManager::hangarState(int hangar) -> HangarState {
if(hangar < 0 && hangar >= 32) {
return HangarState::Empty;
}
return _hangars[hangar]._state;
}
auto MassManager::massName(int hangar) -> Containers::Optional<std::string> {
if(hangar < 0 && hangar >= 32) {
return Containers::NullOpt;
}
return _hangars[hangar]._massName;
}
auto MassManager::getMassName(const std::string& filename) -> Containers::Optional<std::string> {
Containers::Optional<std::string> name = Containers::NullOpt;
auto mmap = Utility::Directory::mapRead(filename);
auto iter = std::search(mmap.begin(), mmap.end(), &mass_name_locator[0], &mass_name_locator[56]);
if(iter != mmap.end()) {
name = std::string{iter + 70};
}
else {
_lastError = "Couldn't find the M.A.S.S. name in " + filename;
}
return name;
}
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auto MassManager::initialiseStagingArea() -> std::vector<std::string> {
if(!Utility::Directory::exists(_stagingAreaDirectory)) {
Utility::Directory::mkpath(_stagingAreaDirectory);
}
using Utility::Directory::Flag;
std::vector<std::string> file_list = Utility::Directory::list(_stagingAreaDirectory, Flag::SkipSpecial|Flag::SkipDirectories|Flag::SkipDotAndDotDot);
auto iter = std::remove_if(file_list.begin(), file_list.end(), [](std::string& file){
return !Utility::String::endsWith(file, ".sav");
});
file_list.erase(iter, file_list.end());
std::vector<std::string> mass_names;
mass_names.reserve(file_list.size());
for(const std::string& file : file_list) {
auto name = getMassName(Utility::Directory::join(_stagingAreaDirectory, file));
if(name) {
mass_names.push_back(Utility::formatString("{} ({})", *name, file));
_stagedMasses[file] = *name;
}
}
mass_names.shrink_to_fit();
return std::move(mass_names);
}
auto MassManager::updateStagedMass(const std::string& filename) -> int {
std::string file = Utility::Directory::join(_stagingAreaDirectory, filename);
if(!Utility::Directory::exists(file)) {
return -1;
}
auto name = getMassName(file);
if(!name) {
return -1;
}
_stagedMasses[filename] = *name;
int index = 0;
for(const auto& mass: _stagedMasses) {
if(mass.first != filename) {
++index;
continue;
}
return index;
}
return -1;
}
auto MassManager::removeStagedMass(const std::string& filename) -> int {
int index = 0;
for(auto it = _stagedMasses.begin(); it != _stagedMasses.end(); ++it, ++index) {
if(it->first == filename) {
_stagedMasses.erase(it);
return index;
}
}
return -1;
}
std::string MassManager::stagedMassName(int index) {
int i = 0;
for(const auto& mass_info : _stagedMasses) {
if(i != index) {
++i;
continue;
}
return mass_info.second;
}
return "";
}
auto MassManager::stagedMassName(const std::string& filename) -> std::string {
auto iter = _stagedMasses.find(filename);
if(iter == _stagedMasses.end()) {
return "";
}
return iter->second;
}
auto MassManager::findSaveDirectory() -> bool {
wchar_t h[MAX_PATH];
if(!SUCCEEDED(SHGetFolderPathW(nullptr, CSIDL_LOCAL_APPDATA, nullptr, 0, h))) {
_lastError = "SHGetFolderPathW() failed in MassManager::findSaveDirectory()";
return false;
}
_saveDirectory = Utility::Directory::join(Utility::Directory::fromNativeSeparators(Utility::Unicode::narrow(h)), "MASS_Builder/Saved/SaveGames");
if(!Utility::Directory::exists(_saveDirectory)) {
_lastError = _saveDirectory + " wasn't found.";
return false;
}
return true;
}
auto MassManager::findSteamId() -> bool {
std::vector<std::string> listing = Utility::Directory::list(_saveDirectory);
wxRegEx regex;
if(!regex.Compile("Profile([0-9]{17}).sav", wxRE_ADVANCED)) {
_lastError = "Couldn't compile the regex in MassManager::findSteamId()";
return false;
}
for(const std::string& s : listing) {
if(regex.Matches(s)) {
_steamId = regex.GetMatch(s, 1);
return true;
}
}
_lastError = "Couldn't find the profile save.";
return false;
}