62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// Copyright 2016 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
#include "core/file_sys/filesystem.h"
|
|
|
|
namespace FileSys {
|
|
|
|
/**
|
|
* A helper class parsing and verifying a string-type Path.
|
|
* Every archives with a sub file system should use this class to parse the path argument and check
|
|
* the status of the file / directory in question on the host file system.
|
|
*/
|
|
class PathParser {
|
|
public:
|
|
explicit PathParser(const Path& path);
|
|
|
|
/**
|
|
* Checks if the Path is valid.
|
|
* This function should be called once a PathParser is constructed.
|
|
* A Path is valid if:
|
|
* - it is a string path (with type LowPathType::Char or LowPathType::Wchar),
|
|
* - it starts with "/" (this seems a hard requirement in real 3DS),
|
|
* - it doesn't contain invalid characters, and
|
|
* - it doesn't go out of the root directory using "..".
|
|
*/
|
|
bool IsValid() const {
|
|
return is_valid;
|
|
}
|
|
|
|
/// Checks if the Path represents the root directory.
|
|
bool IsRootDirectory() const {
|
|
return is_root;
|
|
}
|
|
|
|
enum HostStatus {
|
|
InvalidMountPoint,
|
|
PathNotFound, // "/a/b/c" when "a" doesn't exist
|
|
FileInPath, // "/a/b/c" when "a" is a file
|
|
FileFound, // "/a/b/c" when "c" is a file
|
|
DirectoryFound, // "/a/b/c" when "c" is a directory
|
|
NotFound // "/a/b/c" when "a/b/" exists but "c" doesn't exist
|
|
};
|
|
|
|
/// Checks the status of the specified file / directory by the Path on the host file system.
|
|
HostStatus GetHostStatus(const std::string& mount_point) const;
|
|
|
|
/// Builds a full path on the host file system.
|
|
std::string BuildHostPath(const std::string& mount_point) const;
|
|
|
|
private:
|
|
std::vector<std::string> path_sequence;
|
|
bool is_valid{};
|
|
bool is_root{};
|
|
};
|
|
|
|
} // namespace FileSys
|