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