Checkpoint/switch/source/io.cpp
2019-07-09 23:13:23 +02:00

270 lines
No EOL
8.3 KiB
C++

/*
* This file is part of Checkpoint
* Copyright (C) 2017-2019 Bernardo Giordano, FlagBrew
*
* 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 <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#include "io.hpp"
bool io::fileExists(const std::string& path)
{
struct stat buffer;
return (stat(path.c_str(), &buffer) == 0);
}
void io::copyFile(const std::string& srcPath, const std::string& dstPath)
{
FILE* src = fopen(srcPath.c_str(), "rb");
if (src == NULL) {
return;
}
FILE* dst = fopen(dstPath.c_str(), "wb");
if (dst == NULL) {
fclose(src);
return;
}
fseek(src, 0, SEEK_END);
u64 sz = ftell(src);
rewind(src);
u8* buf = new u8[BUFFER_SIZE];
u64 offset = 0;
while (offset < sz) {
u32 count = fread((char*)buf, 1, BUFFER_SIZE, src);
fwrite((char*)buf, 1, count, dst);
offset += count;
}
delete[] buf;
fclose(src);
fclose(dst);
// commit each file to the save
if (dstPath.rfind("save:/", 0) == 0) {
fsdevCommitDevice("save");
}
}
Result io::copyDirectory(const std::string& srcPath, const std::string& dstPath)
{
Result res = 0;
bool quit = false;
Directory items(srcPath);
if (!items.good()) {
return items.error();
}
for (size_t i = 0, sz = items.size(); i < sz && !quit; i++) {
std::string newsrc = srcPath + items.entry(i);
std::string newdst = dstPath + items.entry(i);
if (items.folder(i)) {
res = io::createDirectory(newdst);
if (R_SUCCEEDED(res)) {
newsrc += "/";
newdst += "/";
res = io::copyDirectory(newsrc, newdst);
}
else {
quit = true;
}
}
else {
io::copyFile(newsrc, newdst);
}
}
return 0;
}
Result io::createDirectory(const std::string& path)
{
mkdir(path.c_str(), 777);
return 0;
}
bool io::directoryExists(const std::string& path)
{
struct stat sb;
return (stat(path.c_str(), &sb) == 0 && S_ISDIR(sb.st_mode));
}
Result io::deleteFolderRecursively(const std::string& path)
{
Directory dir(path);
if (!dir.good()) {
return dir.error();
}
for (size_t i = 0, sz = dir.size(); i < sz; i++) {
if (dir.folder(i)) {
std::string newpath = path + "/" + dir.entry(i) + "/";
deleteFolderRecursively(newpath);
newpath = path + dir.entry(i);
rmdir(newpath.c_str());
}
else {
std::string newpath = path + dir.entry(i);
std::remove(newpath.c_str());
}
}
rmdir(path.c_str());
return 0;
}
std::tuple<bool, Result, std::string> io::backup(size_t index, u128 uid, size_t cellIndex)
{
const bool isNewFolder = cellIndex == 0;
Result res = 0;
std::tuple<bool, Result, std::string> ret = std::make_tuple(false, -1, "");
Title title;
getTitle(title, uid, index);
FsFileSystem fileSystem;
res = FileSystem::mount(&fileSystem, title.id(), title.userId());
if (R_SUCCEEDED(res)) {
int rc = FileSystem::mount(fileSystem);
if (rc == -1) {
FileSystem::unmount();
return std::make_tuple(false, -2, "Failed to mount save.");
}
}
else {
return std::make_tuple(false, res, "Failed to mount save.");
}
std::string suggestion = DateTime::dateTimeStr() + " " +
(StringUtils::containsInvalidChar(Account::username(title.userId()))
? ""
: StringUtils::removeNotAscii(StringUtils::removeAccents(Account::username(title.userId()))));
std::string customPath;
if (MS::multipleSelectionEnabled()) {
customPath = isNewFolder ? suggestion : "";
}
else {
if (isNewFolder) {
std::pair<bool, std::string> keyboardResponse = KeyboardManager::get().keyboard(suggestion);
if (keyboardResponse.first) {
customPath = StringUtils::removeForbiddenCharacters(keyboardResponse.second);
}
else {
FileSystem::unmount();
return std::make_tuple(false, 0, "Operation aborted by the user.");
}
}
else {
customPath = "";
}
}
std::string dstPath;
if (!isNewFolder) {
// we're overriding an existing folder
dstPath = title.fullPath(cellIndex);
}
else {
dstPath = title.path() + "/" + customPath;
}
if (!isNewFolder || io::directoryExists(dstPath)) {
int rc = io::deleteFolderRecursively((dstPath + "/").c_str());
if (rc != 0) {
FileSystem::unmount();
return std::make_tuple(false, (Result)rc, "Failed to delete the existing backup\ndirectory recursively.");
}
}
io::createDirectory(dstPath);
res = io::copyDirectory("save:/", dstPath + "/");
if (R_FAILED(res)) {
FileSystem::unmount();
io::deleteFolderRecursively((dstPath + "/").c_str());
return std::make_tuple(false, res, "Failed to backup save.");
}
refreshDirectories(title.id());
FileSystem::unmount();
if (!MS::multipleSelectionEnabled()) {
blinkLed(4);
ret = std::make_tuple(true, 0, "Progress correctly saved to disk.");
}
auto systemKeyboardAvailable = KeyboardManager::get().isSystemKeyboardAvailable();
if (!systemKeyboardAvailable.first) {
return std::make_tuple(
false, systemKeyboardAvailable.second, "System keyboard applet not accessible.\nThe suggested destination folder was used\ninstead.");
}
return ret;
}
std::tuple<bool, Result, std::string> io::restore(size_t index, u128 uid, size_t cellIndex, const std::string& nameFromCell)
{
Result res = 0;
std::tuple<bool, Result, std::string> ret = std::make_tuple(false, -1, "");
Title title;
getTitle(title, uid, index);
FsFileSystem fileSystem;
res = title.systemSave() ? FileSystem::mount(&fileSystem, title.id()) : FileSystem::mount(&fileSystem, title.id(), title.userId());
if (R_SUCCEEDED(res)) {
int rc = FileSystem::mount(fileSystem);
if (rc == -1) {
FileSystem::unmount();
return std::make_tuple(false, -2, "Failed to mount save.");
}
}
else {
return std::make_tuple(false, res, "Failed to mount save.");
}
std::string srcPath = title.fullPath(cellIndex) + "/";
std::string dstPath = "save:/";
res = io::deleteFolderRecursively(dstPath.c_str());
if (R_FAILED(res)) {
FileSystem::unmount();
return std::make_tuple(false, res, "Failed to delete save.");
}
res = io::copyDirectory(srcPath, dstPath);
if (R_FAILED(res)) {
FileSystem::unmount();
return std::make_tuple(false, res, "Failed to restore save.");
}
res = fsdevCommitDevice("save");
if (R_FAILED(res)) {
return std::make_tuple(false, res, "Failed to commit to save device.");
}
else {
blinkLed(4);
ret = std::make_tuple(true, 0, nameFromCell + "\nhas been restored successfully.");
}
FileSystem::unmount();
return ret;
}