office-gobmx/sal/osl/unx/file_path_helper.hxx
Stephan Bergmann caa211b620 Better handling of non--UTF-8 filesystem pathnames in sal/osl/unx/
The idea is to internally in sal/osl/unx/ use OString instead of OUString to
represent pathnames, so that the OString carries the actual bytes that make up
the pathname.  At the boundary of translating between pathname OStrings and file
URL OUStrings, translate sequences of bytes that are valid according to
osl_getThreadTextEncoding() into UTF-8 and translate other bytes into individual
(percent-encoded) bytes in the file URL.

This change required duplicating some of the internal functionality in
sal/osl/unx/ for both OString and OUString, and to make part of sal/rtl/uri.cxx
accessible from sal/osl/unx/ via new sal/inc/uri_internal.hxx.

Change-Id: Id1ebaebe9e7f2d21f350f6b1a07849edee54331f
Reviewed-on: https://gerrit.libreoffice.org/78798
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
2019-09-17 15:05:11 +02:00

251 lines
7.8 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_SAL_OSL_UNX_FILE_PATH_HELPER_HXX
#define INCLUDED_SAL_OSL_UNX_FILE_PATH_HELPER_HXX
#include <sal/types.h>
#include <rtl/ustring.h>
#include <rtl/ustring.hxx>
/**
Removes the last separator from the given system path if any and if the path
is not the root path '/'
@param ppstrPath[inout] a system path if the path is not the root path
and the last character is a path separator it
will be cut off ppstrPath must not be NULL and
must point to a valid rtl_String
@returns nothing
*/
void osl_systemPathRemoveSeparator(rtl_String* pstrPath);
/**
Returns true if the given path is a relative path and so starts not with '/'
@param pustrPath [in] a system path - must not be NULL
@retval sal_True the given path doesn't start with a separator
@retval sal_False the given path starts with a separator
*/
bool osl_systemPathIsRelativePath(
const rtl_uString* pustrPath);
/**
Returns the file or the directory part of the given path
@param pstrPath [in] a system path, must not be NULL
@param ppstrFileOrDirPart [out] on return receives the last part of the
given directory or the file name if pstrPath is the
root path '/' an empty string will be returned if
pstrPath has a trailing '/' the last part before the
'/' will be returned else the part after the last '/'
will be returned
@returns nothing
*/
void osl_systemPathGetFileNameOrLastDirectoryPart(
const rtl_String* pstrPath,
rtl_String** ppstrFileNameOrLastDirPart);
/**
@param pustrPath [in] a system path, must not be NULL
@retval sal_True the last part of the given system path starts with '.'
@retval sal_False the last part of the given system path is '.' or '..'
alone or doesn't start with a dot
*/
bool osl_systemPathIsHiddenFileOrDirectoryEntry(
const rtl_String* pustrPath);
/************************************************
osl_systemPathIsLocalOrParentDirectoryEntry
Returns sal_True if the last part of the given
system path is the local directory entry '.'
or the parent directory entry '..'
@param pstrPath [in] a system path,
must not be NULL
@returns sal_True if the last part of the
given system path is '.' or '..'
else sal_False
************************************************/
bool osl_systemPathIsLocalOrParentDirectoryEntry(
const rtl_String* pstrPath);
/************************************************
osl_searchPath
Searches for a file name or path name in all
directories specified by a given path list.
Symbolic links in the resulting path will not be
resolved, it's up to the caller to do this.
@param pustrFilePath [in] a file name or
directory name to search for, the name must
be provided as system path not as a file URL
@param pustrSearchPathList [in] a ':'
separated list of paths in which to search for
the file or directory name
@param ppustrPathFound [out] on success receives the
complete path of the file or directory found
as a system path
@returns sal_True if the specified file or
directory was found else sal_False
***********************************************/
bool osl_searchPath(
const rtl_uString* pustrFilePath,
const rtl_uString* pustrSearchPathList,
rtl_uString** ppustrPathFound);
namespace osl
{
/*******************************************
systemPathRemoveSeparator
Removes the last separator from the
given system path if any and if the path
is not the root path '/'
@param ppustrPath [inout] a system path
if the path is not the root path
and the last character is a
path separator it will be cut off
ppustrPath must not be NULL and
must point to a valid rtl_uString
@returns nothing
******************************************/
inline void systemPathRemoveSeparator(/*inout*/ OString& Path)
{
osl_systemPathRemoveSeparator(Path.pData);
}
/*******************************************
systemPathIsRelativePath
Returns true if the given path is a
relative path and so starts not with '/'
@param pustrPath [in] a system path
pustrPath must not be NULL
@returns sal_True if the given path
doesn't start with a separator
else sal_False will be returned
******************************************/
inline bool systemPathIsRelativePath(const OUString& Path)
{
return osl_systemPathIsRelativePath(Path.pData);
}
/******************************************
systemPathMakeAbsolutePath
Append a relative path to a base path
@param BasePath [in] a system
path that will be considered as
base path
@param RelPath [in] a system path
that will be considered as
relative path
@return the
resulting path which is a
concatenation of the base and
the relative path
if base path is empty the
resulting absolute path is the
relative path
if relative path is empty the
resulting absolute path is the
base path
if base and relative path are
empty the resulting absolute
path is also empty
*****************************************/
OString systemPathMakeAbsolutePath(
const OString& BasePath,
const OString& RelPath);
OUString systemPathMakeAbsolutePath(
const OUString& BasePath,
const OUString& RelPath);
/********************************************
systemPathIsHiddenFileOrDirectoryEntry
Returns sal_True if the last part of
given system path is not '.' or '..'
alone and starts with a '.'
@param pustrPath [in] a system path,
must not be NULL
@returns sal_True if the last part of
the given system path starts
with '.' or sal_False the last
part is '.' or '..' alone or
doesn't start with a dot
*********************************************/
inline bool systemPathIsHiddenFileOrDirectoryEntry(
const OString& Path)
{
return osl_systemPathIsHiddenFileOrDirectoryEntry(Path.pData);
}
/************************************************
searchPath
***********************************************/
inline bool searchPath(
const OUString& ustrFilePath,
const OUString& ustrSearchPathList,
OUString& ustrPathFound)
{
return osl_searchPath(
ustrFilePath.pData,
ustrSearchPathList.pData,
&ustrPathFound.pData);
}
} // namespace osl
#endif /* #ifndef _OSL_PATH_HELPER_HXX_ */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */