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key_manager: Make use of IOFile in WriteKeyToFile()

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This properly handles unicode-based paths on Windows, while opening a
raw stream doesn't out-of-the-box.

Prevents file creation from potentially failing on Windows PCs that make
use of unicode characters in their save paths (e.g. writing to a user's
AppData folder, where the user has a name with non-ASCII characters).
This commit is contained in:
Lioncash 2019-11-12 08:06:37 -05:00
parent 8714d40a77
commit 64cbebc58f
1 changed files with 17 additions and 13 deletions
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30
src/core/crypto/key_manager.cpp
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@ -668,23 +668,27 @@ void KeyManager::WriteKeyToFile(KeyCategory category, std::string_view keyname,
const std::array<u8, Size>& key) { const std::array<u8, Size>& key) {
const std::string yuzu_keys_dir = FileUtil::GetUserPath(FileUtil::UserPath::KeysDir); const std::string yuzu_keys_dir = FileUtil::GetUserPath(FileUtil::UserPath::KeysDir);
std::string filename = "title.keys_autogenerated"; std::string filename = "title.keys_autogenerated";
if (category == KeyCategory::Standard) if (category == KeyCategory::Standard) {
filename = dev_mode ? "dev.keys_autogenerated" : "prod.keys_autogenerated"; filename = dev_mode ? "dev.keys_autogenerated" : "prod.keys_autogenerated";
else if (category == KeyCategory::Console) } else if (category == KeyCategory::Console) {
filename = "console.keys_autogenerated"; filename = "console.keys_autogenerated";
const auto add_info_text = !FileUtil::Exists(yuzu_keys_dir + DIR_SEP + filename);
FileUtil::CreateFullPath(yuzu_keys_dir + DIR_SEP + filename);
std::ofstream file(yuzu_keys_dir + DIR_SEP + filename, std::ios::app);
if (!file.is_open())
return;
if (add_info_text) {
file
<< "# This file is autogenerated by Yuzu\n"
<< "# It serves to store keys that were automatically generated from the normal keys\n"
<< "# If you are experiencing issues involving keys, it may help to delete this file\n";
} }
file << fmt::format("\n{} = {}", keyname, Common::HexToString(key)); const auto path = yuzu_keys_dir + DIR_SEP + filename;
const auto add_info_text = !FileUtil::Exists(path);
FileUtil::CreateFullPath(path);
FileUtil::IOFile file{path, "a"};
if (!file.IsOpen()) {
return;
}
if (add_info_text) {
file.WriteString(
"# This file is autogenerated by Yuzu\n"
"# It serves to store keys that were automatically generated from the normal keys\n"
"# If you are experiencing issues involving keys, it may help to delete this file\n");
}
file.WriteString(fmt::format("\n{} = {}", keyname, Common::HexToString(key)));
AttemptLoadKeyFile(yuzu_keys_dir, yuzu_keys_dir, filename, category == KeyCategory::Title); AttemptLoadKeyFile(yuzu_keys_dir, yuzu_keys_dir, filename, category == KeyCategory::Title);
} }