From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:51:28 +0200 Subject: Adding upstream version 1:7.0.4. Signed-off-by: Daniel Baumann --- sal/osl/unx/file_path_helper.cxx | 261 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 261 insertions(+) create mode 100644 sal/osl/unx/file_path_helper.cxx (limited to 'sal/osl/unx/file_path_helper.cxx') diff --git a/sal/osl/unx/file_path_helper.cxx b/sal/osl/unx/file_path_helper.cxx new file mode 100644 index 000000000..080a99c09 --- /dev/null +++ b/sal/osl/unx/file_path_helper.cxx @@ -0,0 +1,261 @@ +/* -*- 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 . + */ + +#include + +#include + +#include "file_path_helper.hxx" +#include "uunxapi.hxx" + +#include +#include +#include + +const sal_Unicode FPH_CHAR_PATH_SEPARATOR = '/'; +const sal_Unicode FPH_CHAR_DOT = '.'; +const sal_Unicode FPH_CHAR_COLON = ':'; + +void osl_systemPathRemoveSeparator(rtl_String* pstrPath) +{ + OSL_PRECOND(nullptr != pstrPath, "osl_systemPathRemoveSeparator: Invalid parameter"); + if (pstrPath == nullptr) + return; + + // maybe there are more than one separator at end + // so we run in a loop + while ((pstrPath->length > 1) && (pstrPath->buffer[pstrPath->length - 1] == FPH_CHAR_PATH_SEPARATOR)) + { + pstrPath->length--; + pstrPath->buffer[pstrPath->length] = '\0'; + } + + SAL_WARN_IF( !((0 == pstrPath->length) || (1 == pstrPath->length) || + (pstrPath->length > 1 && pstrPath->buffer[pstrPath->length - 1] != FPH_CHAR_PATH_SEPARATOR)), + "sal.osl", + "osl_systemPathRemoveSeparator: Post condition failed"); +} + +namespace { + +template void systemPathEnsureSeparator(T* ppstrPath) +{ + assert(nullptr != ppstrPath); + sal_Int32 lp = ppstrPath->getLength(); + sal_Int32 i = ppstrPath->lastIndexOf(FPH_CHAR_PATH_SEPARATOR); + + if ((lp > 1 && i != (lp - 1)) || ((lp < 2) && i < 0)) + { + *ppstrPath += "/"; + } + + SAL_WARN_IF( !ppstrPath->endsWith("/"), + "sal.osl", + "systemPathEnsureSeparator: Post condition failed"); +} + +} + +bool osl_systemPathIsRelativePath(const rtl_uString* pustrPath) +{ + OSL_PRECOND(nullptr != pustrPath, "osl_systemPathIsRelativePath: Invalid parameter"); + return ((pustrPath == nullptr) || (pustrPath->length == 0) || (pustrPath->buffer[0] != FPH_CHAR_PATH_SEPARATOR)); +} + +namespace { + +template T systemPathMakeAbsolutePath_( + const T& BasePath, + const T& RelPath) +{ + T base(BasePath); + + if (!base.isEmpty()) + systemPathEnsureSeparator(&base); + + return base + RelPath; +} + +} + +OString osl::systemPathMakeAbsolutePath( + const OString& BasePath, + const OString& RelPath) +{ + return systemPathMakeAbsolutePath_(BasePath, RelPath); +} + +OUString osl::systemPathMakeAbsolutePath( + const OUString& BasePath, + const OUString& RelPath) +{ + return systemPathMakeAbsolutePath_(BasePath, RelPath); +} + +void osl_systemPathGetFileNameOrLastDirectoryPart( + const rtl_String* pstrPath, + rtl_String** ppstrFileNameOrLastDirPart) +{ + OSL_PRECOND(pstrPath && ppstrFileNameOrLastDirPart, + "osl_systemPathGetFileNameOrLastDirectoryPart: Invalid parameter"); + + OString path(const_cast(pstrPath)); + + osl_systemPathRemoveSeparator(path.pData); + + OString last_part; + + if (path.getLength() > 1 || (path.getLength() == 1 && path[0] != FPH_CHAR_PATH_SEPARATOR)) + { + sal_Int32 idx_ps = path.lastIndexOf(FPH_CHAR_PATH_SEPARATOR); + idx_ps++; // always right to increment by one even if idx_ps == -1! + last_part = path.copy(idx_ps); + } + rtl_string_assign(ppstrFileNameOrLastDirPart, last_part.pData); +} + +bool osl_systemPathIsHiddenFileOrDirectoryEntry( + const rtl_String* pstrPath) +{ + OSL_PRECOND(nullptr != pstrPath, "osl_systemPathIsHiddenFileOrDirectoryEntry: Invalid parameter"); + if ((pstrPath == nullptr) || (pstrPath->length == 0)) + return false; + + OString fdp; + osl_systemPathGetFileNameOrLastDirectoryPart(pstrPath, &fdp.pData); + + return ((fdp.pData->length > 0) && + (fdp.pData->buffer[0] == FPH_CHAR_DOT) && + !osl_systemPathIsLocalOrParentDirectoryEntry(fdp.pData)); +} + +bool osl_systemPathIsLocalOrParentDirectoryEntry( + const rtl_String* pstrPath) +{ + OSL_PRECOND(pstrPath, "osl_systemPathIsLocalOrParentDirectoryEntry: Invalid parameter"); + + OString dirent; + + osl_systemPathGetFileNameOrLastDirectoryPart(pstrPath, &dirent.pData); + + return (dirent == "." || + dirent == ".."); +} + +namespace { + +/** Simple iterator for a path list separated by the specified character +*/ +class path_list_iterator +{ +public: + + /* after construction get_current_item + returns the first path in list, no need + to call reset first + */ + path_list_iterator(const OUString& path_list, sal_Unicode list_separator = FPH_CHAR_COLON) : + m_path_list(path_list), + m_end(m_path_list.getStr() + m_path_list.getLength() + 1), + m_separator(list_separator) + { + reset(); + } + + path_list_iterator(const path_list_iterator&) = delete; + path_list_iterator& operator=(const path_list_iterator&) = delete; + + void reset() + { + m_path_segment_begin = m_path_segment_end = m_path_list.getStr(); + advance(); + } + + void next() + { + OSL_PRECOND(!done(), "path_list_iterator: Already done!"); + + m_path_segment_begin = ++m_path_segment_end; + advance(); + } + + bool done() const + { + return (m_path_segment_end >= m_end); + } + + OUString get_current_item() const + { + return OUString( + m_path_segment_begin, + (m_path_segment_end - m_path_segment_begin)); + } + +private: + /* move m_path_end to the next separator or + to the end of the string + */ + void advance() + { + while (!done() && *m_path_segment_end && (*m_path_segment_end != m_separator)) + ++m_path_segment_end; + + OSL_ASSERT(m_path_segment_end <= m_end); + } + +private: + OUString m_path_list; + const sal_Unicode* m_end; + const sal_Unicode m_separator; + const sal_Unicode* m_path_segment_begin; + const sal_Unicode* m_path_segment_end; +}; + +} + +bool osl_searchPath( + const rtl_uString* pustrFilePath, + const rtl_uString* pustrSearchPathList, + rtl_uString** ppustrPathFound) +{ + OSL_PRECOND(pustrFilePath && pustrSearchPathList && ppustrPathFound, "osl_searchPath: Invalid parameter"); + + bool bfound = false; + OUString fp(const_cast(pustrFilePath)); + OUString pl(const_cast(pustrSearchPathList)); + path_list_iterator pli(pl); + + while (!pli.done()) + { + OUString p = pli.get_current_item(); + systemPathEnsureSeparator(&p); + p += fp; + + if (osl::access(osl::OUStringToOString(p), F_OK) > -1) + { + bfound = true; + rtl_uString_assign(ppustrPathFound, p.pData); + break; + } + pli.next(); + } + return bfound; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3