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Atmosphere/stratosphere/ams_mitm/source/fs_mitm/fs_ifilesystem.hpp
2019-06-27 23:34:53 -07:00

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/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include "../utils.hpp"
#include "fs_filesystem_types.hpp"
#include "fs_path_utils.hpp"
#include "fs_ifile.hpp"
#include "fs_idirectory.hpp"
class IFile;
class IDirectory;
class IFileSystem {
public:
virtual ~IFileSystem() {}
Result CreateFile(const FsPath &path, uint64_t size, int flags) {
return CreateFileImpl(path, size, flags);
}
Result CreateFile(const FsPath &path, uint64_t size) {
return CreateFileImpl(path, size, 0);
}
Result DeleteFile(const FsPath &path) {
return DeleteFileImpl(path);
}
Result CreateDirectory(const FsPath &path) {
return CreateDirectoryImpl(path);
}
Result DeleteDirectory(const FsPath &path) {
return DeleteDirectoryImpl(path);
}
Result DeleteDirectoryRecursively(const FsPath &path) {
return DeleteDirectoryRecursivelyImpl(path);
}
Result RenameFile(const FsPath &old_path, const FsPath &new_path) {
return RenameFileImpl(old_path, new_path);
}
Result RenameDirectory(const FsPath &old_path, const FsPath &new_path) {
return RenameDirectoryImpl(old_path, new_path);
}
Result GetEntryType(DirectoryEntryType *out, const FsPath &path) {
if (out == nullptr) {
return ResultFsNullptrArgument;
}
return GetEntryTypeImpl(out, path);
}
Result OpenFile(std::unique_ptr<IFile> &out_file, const FsPath &path, OpenMode mode) {
if (!(mode & OpenMode_ReadWrite)) {
return ResultFsInvalidArgument;
}
if (mode & ~OpenMode_All) {
return ResultFsInvalidArgument;
}
return OpenFileImpl(out_file, path, mode);
}
Result OpenDirectory(std::unique_ptr<IDirectory> &out_dir, const FsPath &path, DirectoryOpenMode mode) {
if (!(mode & DirectoryOpenMode_All)) {
return ResultFsInvalidArgument;
}
if (mode & ~DirectoryOpenMode_All) {
return ResultFsInvalidArgument;
}
return OpenDirectoryImpl(out_dir, path, mode);
}
Result Commit() {
return CommitImpl();
}
Result GetFreeSpaceSize(uint64_t *out, const FsPath &path) {
if (out == nullptr) {
return ResultFsNullptrArgument;
}
return GetFreeSpaceSizeImpl(out, path);
}
Result GetTotalSpaceSize(uint64_t *out, const FsPath &path) {
if (out == nullptr) {
return ResultFsNullptrArgument;
}
return GetTotalSpaceSizeImpl(out, path);
}
Result CleanDirectoryRecursively(const FsPath &path) {
return CleanDirectoryRecursivelyImpl(path);
}
Result GetFileTimeStampRaw(FsTimeStampRaw *out, const FsPath &path) {
if (out == nullptr) {
return ResultFsNullptrArgument;
}
return GetFileTimeStampRawImpl(out, path);
}
Result QueryEntry(char *out, uint64_t out_size, const char *in, uint64_t in_size, int query, const FsPath &path) {
return QueryEntryImpl(out, out_size, in, in_size, query, path);
}
protected:
/* ...? */
private:
virtual Result CreateFileImpl(const FsPath &path, uint64_t size, int flags) = 0;
virtual Result DeleteFileImpl(const FsPath &path) = 0;
virtual Result CreateDirectoryImpl(const FsPath &path) = 0;
virtual Result DeleteDirectoryImpl(const FsPath &path) = 0;
virtual Result DeleteDirectoryRecursivelyImpl(const FsPath &path) = 0;
virtual Result RenameFileImpl(const FsPath &old_path, const FsPath &new_path) = 0;
virtual Result RenameDirectoryImpl(const FsPath &old_path, const FsPath &new_path) = 0;
virtual Result GetEntryTypeImpl(DirectoryEntryType *out, const FsPath &path) = 0;
virtual Result OpenFileImpl(std::unique_ptr<IFile> &out_file, const FsPath &path, OpenMode mode) = 0;
virtual Result OpenDirectoryImpl(std::unique_ptr<IDirectory> &out_dir, const FsPath &path, DirectoryOpenMode mode) = 0;
virtual Result CommitImpl() = 0;
virtual Result GetFreeSpaceSizeImpl(uint64_t *out, const FsPath &path) {
(void)(out);
(void)(path);
return ResultFsNotImplemented;
}
virtual Result GetTotalSpaceSizeImpl(uint64_t *out, const FsPath &path) {
(void)(out);
(void)(path);
return ResultFsNotImplemented;
}
virtual Result CleanDirectoryRecursivelyImpl(const FsPath &path) = 0;
virtual Result GetFileTimeStampRawImpl(FsTimeStampRaw *out, const FsPath &path) {
(void)(out);
(void)(path);
return ResultFsNotImplemented;
}
virtual Result QueryEntryImpl(char *out, uint64_t out_size, const char *in, uint64_t in_size, int query, const FsPath &path) {
(void)(out);
(void)(out_size);
(void)(in);
(void)(in_size);
(void)(query);
(void)(path);
return ResultFsNotImplemented;
}
};
class IFileSystemInterface : public IServiceObject {
private:
enum class CommandId {
/* 1.0.0+ */
CreateFile = 0,
DeleteFile = 1,
CreateDirectory = 2,
DeleteDirectory = 3,
DeleteDirectoryRecursively = 4,
RenameFile = 5,
RenameDirectory = 6,
GetEntryType = 7,
OpenFile = 8,
OpenDirectory = 9,
Commit = 10,
GetFreeSpaceSize = 11,
GetTotalSpaceSize = 12,
/* 3.0.0+ */
CleanDirectoryRecursively = 13,
GetFileTimeStampRaw = 14,
/* 4.0.0+ */
QueryEntry = 15,
};
private:
std::unique_ptr<IFileSystem> unique_fs;
std::shared_ptr<IFileSystem> shared_fs;
IFileSystem *base_fs;
public:
IFileSystemInterface(IFileSystem *fs) : unique_fs(fs) {
this->base_fs = this->unique_fs.get();
};
IFileSystemInterface(std::unique_ptr<IFileSystem> fs) : unique_fs(std::move(fs)) {
this->base_fs = this->unique_fs.get();
};
IFileSystemInterface(std::shared_ptr<IFileSystem> fs) : shared_fs(fs) {
this->base_fs = this->shared_fs.get();
};
private:
/* Actual command API. */
virtual Result CreateFile(InPointer<char> in_path, uint64_t size, int flags) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->CreateFile(path, size, flags);
}
virtual Result DeleteFile(InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->DeleteFile(path);
}
virtual Result CreateDirectory(InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->CreateDirectory(path);
}
virtual Result DeleteDirectory(InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->DeleteDirectory(path);
}
virtual Result DeleteDirectoryRecursively(InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->DeleteDirectoryRecursively(path);
}
virtual Result RenameFile(InPointer<char> in_old_path, InPointer<char> in_new_path) final {
FsPath old_path;
FsPath new_path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&old_path, in_old_path.pointer));
R_TRY(FsPathUtils::ConvertPathForServiceObject(&new_path, in_new_path.pointer));
return this->base_fs->RenameFile(old_path, new_path);
}
virtual Result RenameDirectory(InPointer<char> in_old_path, InPointer<char> in_new_path) final {
FsPath old_path;
FsPath new_path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&old_path, in_old_path.pointer));
R_TRY(FsPathUtils::ConvertPathForServiceObject(&new_path, in_new_path.pointer));
return this->base_fs->RenameDirectory(old_path, new_path);
}
virtual Result GetEntryType(Out<u32> out_type, InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
DirectoryEntryType type;
R_TRY(this->base_fs->GetEntryType(&type, path));
out_type.SetValue(type);
return ResultSuccess;
}
virtual Result OpenFile(Out<std::shared_ptr<IFileInterface>> out_intf, InPointer<char> in_path, uint32_t mode) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
std::unique_ptr<IFile> out_file;
R_TRY(this->base_fs->OpenFile(out_file, path, static_cast<OpenMode>(mode)));
out_intf.SetValue(std::make_shared<IFileInterface>(std::move(out_file)));
return ResultSuccess;
}
virtual Result OpenDirectory(Out<std::shared_ptr<IDirectoryInterface>> out_intf, InPointer<char> in_path, uint32_t mode) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
std::unique_ptr<IDirectory> out_dir;
R_TRY(this->base_fs->OpenDirectory(out_dir, path, static_cast<DirectoryOpenMode>(mode)));
out_intf.SetValue(std::make_shared<IDirectoryInterface>(std::move(out_dir)));
return ResultSuccess;
}
virtual Result Commit() final {
return this->base_fs->Commit();
}
virtual Result GetFreeSpaceSize(Out<uint64_t> out_size, InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->GetFreeSpaceSize(out_size.GetPointer(), path);
}
virtual Result GetTotalSpaceSize(Out<uint64_t> out_size, InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->GetTotalSpaceSize(out_size.GetPointer(), path);
}
virtual Result CleanDirectoryRecursively(InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->CleanDirectoryRecursively(path);
}
virtual Result GetFileTimeStampRaw(Out<FsTimeStampRaw> out_timestamp, InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->GetFileTimeStampRaw(out_timestamp.GetPointer(), path);
}
virtual Result QueryEntry(OutBuffer<char, BufferType_Type1> out_buffer, InBuffer<char, BufferType_Type1> in_buffer, int query, InPointer<char> in_path) final {
FsPath path;
R_TRY(FsPathUtils::ConvertPathForServiceObject(&path, in_path.pointer));
return this->base_fs->QueryEntry(out_buffer.buffer, out_buffer.num_elements, in_buffer.buffer, in_buffer.num_elements, query, path);
}
public:
DEFINE_SERVICE_DISPATCH_TABLE {
/* 1.0.0- */
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, CreateFile),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, DeleteFile),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, CreateDirectory),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, DeleteDirectory),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, DeleteDirectoryRecursively),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, RenameFile),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, RenameDirectory),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, GetEntryType),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, OpenFile),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, OpenDirectory),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, Commit),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, GetFreeSpaceSize),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, GetTotalSpaceSize),
/* 3.0.0- */
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, CleanDirectoryRecursively, FirmwareVersion_300),
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, GetFileTimeStampRaw, FirmwareVersion_300),
/* 4.0.0- */
MAKE_SERVICE_COMMAND_META(IFileSystemInterface, QueryEntry, FirmwareVersion_400),
};
};
class ProxyFileSystem : public IFileSystem {
private:
std::unique_ptr<FsFileSystem> base_fs;
public:
ProxyFileSystem(FsFileSystem *fs) : base_fs(fs) {
/* ... */
}
ProxyFileSystem(std::unique_ptr<FsFileSystem> fs) : base_fs(std::move(fs)) {
/* ... */
}
ProxyFileSystem(FsFileSystem fs) {
this->base_fs = std::make_unique<FsFileSystem>(fs);
}
virtual ~ProxyFileSystem() {
fsFsClose(this->base_fs.get());
}
public:
virtual Result CreateFileImpl(const FsPath &path, uint64_t size, int flags) {
return fsFsCreateFile(this->base_fs.get(), path.str, size, flags);
}
virtual Result DeleteFileImpl(const FsPath &path) {
return fsFsDeleteFile(this->base_fs.get(), path.str);
}
virtual Result CreateDirectoryImpl(const FsPath &path) {
return fsFsCreateDirectory(this->base_fs.get(), path.str);
}
virtual Result DeleteDirectoryImpl(const FsPath &path) {
return fsFsDeleteDirectory(this->base_fs.get(), path.str);
}
virtual Result DeleteDirectoryRecursivelyImpl(const FsPath &path) {
return fsFsDeleteDirectoryRecursively(this->base_fs.get(), path.str);
}
virtual Result RenameFileImpl(const FsPath &old_path, const FsPath &new_path) {
return fsFsRenameFile(this->base_fs.get(), old_path.str, new_path.str);
}
virtual Result RenameDirectoryImpl(const FsPath &old_path, const FsPath &new_path) {
return fsFsRenameDirectory(this->base_fs.get(), old_path.str, new_path.str);
}
virtual Result GetEntryTypeImpl(DirectoryEntryType *out, const FsPath &path) {
FsEntryType type;
R_TRY(fsFsGetEntryType(this->base_fs.get(), path.str, &type));
*out = static_cast<DirectoryEntryType>(static_cast<u32>(type));
return ResultSuccess;
}
virtual Result OpenFileImpl(std::unique_ptr<IFile> &out_file, const FsPath &path, OpenMode mode) {
FsFile f;
R_TRY(fsFsOpenFile(this->base_fs.get(), path.str, static_cast<int>(mode), &f));
out_file = std::make_unique<ProxyFile>(f);
return ResultSuccess;
}
virtual Result OpenDirectoryImpl(std::unique_ptr<IDirectory> &out_dir, const FsPath &path, DirectoryOpenMode mode) {
FsDir d;
R_TRY(fsFsOpenDirectory(this->base_fs.get(), path.str, static_cast<int>(mode), &d));
out_dir = std::make_unique<ProxyDirectory>(d);
return ResultSuccess;
}
virtual Result CommitImpl() {
return fsFsCommit(this->base_fs.get());
}
virtual Result GetFreeSpaceSizeImpl(uint64_t *out, const FsPath &path) {
return fsFsGetFreeSpace(this->base_fs.get(), path.str, out);
}
virtual Result GetTotalSpaceSizeImpl(uint64_t *out, const FsPath &path) {
return fsFsGetTotalSpace(this->base_fs.get(), path.str, out);
}
virtual Result CleanDirectoryRecursivelyImpl(const FsPath &path) {
return fsFsCleanDirectoryRecursively(this->base_fs.get(), path.str);
}
virtual Result GetFileTimeStampRawImpl(FsTimeStampRaw *out, const FsPath &path) {
return fsFsGetFileTimeStampRaw(this->base_fs.get(), path.str, out);
}
virtual Result QueryEntryImpl(char *out, uint64_t out_size, const char *in, uint64_t in_size, int query, const FsPath &path) {
return fsFsQueryEntry(this->base_fs.get(), out, out_size, in, in_size, path.str,static_cast<FsFileSystemQueryType>(query));
}
};