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patch_manager: Centralize Control-type NCA parsing

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This commit is contained in:
Zach Hilman 2018-09-03 18:57:52 -04:00
parent 4148e4fbba
commit 14a18fd7ae
6 changed files with 88 additions and 79 deletions
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73
src/core/file_sys/patch_manager.cpp
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@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "core/file_sys/control_metadata.h"
#include "core/file_sys/patch_manager.h"
#include "core/file_sys/registered_cache.h"
#include "core/hle/service/filesystem/filesystem.h"
@ -87,29 +88,63 @@ std::map<PatchType, std::string> PatchManager::GetPatchVersionNames() const {
const auto installed = Service::FileSystem::GetUnionContents();
const auto update_tid = GetUpdateTitleID(title_id);
const auto update_control = installed->GetEntry(title_id, ContentRecordType::Control);
if (update_control != nullptr) {
do {
const auto romfs =
PatchRomFS(update_control->GetRomFS(), update_control->GetBaseIVFCOffset(),
FileSys::ContentRecordType::Control);
if (romfs == nullptr)
break;
PatchManager update{update_tid};
auto [nacp, discard_icon_file] = update.GetControlMetadata();
const auto control_dir = FileSys::ExtractRomFS(romfs);
if (control_dir == nullptr)
break;
const auto nacp_file = control_dir->GetFile("control.nacp");
if (nacp_file == nullptr)
break;
FileSys::NACP nacp(nacp_file);
out[PatchType::Update] = nacp.GetVersionString();
} while (false);
if (nacp != nullptr) {
out[PatchType::Update] = nacp->GetVersionString();
} else {
if (installed->HasEntry(update_tid, ContentRecordType::Program)) {
const auto meta_ver = installed->GetEntryVersion(update_tid);
if (meta_ver == boost::none || meta_ver.get() == 0) {
out[PatchType::Update] = "";
} else {
out[PatchType::Update] =
FormatTitleVersion(meta_ver.get(), TitleVersionFormat::ThreeElements);
}
}
}
return out;
}
std::pair<std::shared_ptr<NACP>, VirtualFile> PatchManager::GetControlMetadata() const {
const auto& installed{Service::FileSystem::GetUnionContents()};
const auto base_control_nca = installed->GetEntry(title_id, ContentRecordType::Control);
if (base_control_nca == nullptr)
return {};
return ParseControlNCA(base_control_nca);
}
std::pair<std::shared_ptr<NACP>, VirtualFile> PatchManager::ParseControlNCA(
const std::shared_ptr<NCA>& nca) const {
const auto base_romfs = nca->GetRomFS();
if (base_romfs == nullptr)
return {};
const auto romfs = PatchRomFS(base_romfs, nca->GetBaseIVFCOffset(), ContentRecordType::Control);
if (romfs == nullptr)
return {};
const auto extracted = ExtractRomFS(romfs);
if (extracted == nullptr)
return {};
auto nacp_file = extracted->GetFile("control.nacp");
if (nacp_file == nullptr)
nacp_file = extracted->GetFile("Control.nacp");
const auto nacp = nacp_file == nullptr ? nullptr : std::make_shared<NACP>(nacp_file);
VirtualFile icon_file;
for (const auto& language : FileSys::LANGUAGE_NAMES) {
icon_file = extracted->GetFile("icon_" + std::string(language) + ".dat");
if (icon_file != nullptr)
break;
}
return {nacp, icon_file};
}
} // namespace FileSys