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/*
* Copyright 2003-2018 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h" /* must be first for large file support */
#include "UpdateIO.hxx"
#include "db/plugins/simple/Directory.hxx"
#include "storage/FileInfo.hxx"
#include "storage/StorageInterface.hxx"
#include "fs/Traits.hxx"
#include "fs/FileSystem.hxx"
#include "fs/AllocatedPath.hxx"
#include "Log.hxx"
#include <stdexcept>
#include <errno.h>
bool
GetInfo(Storage &storage, const char *uri_utf8, StorageFileInfo &info) noexcept
try {
info = storage.GetInfo(uri_utf8, true);
return true;
} catch (...) {
LogError(std::current_exception());
return false;
}
bool
GetInfo(StorageDirectoryReader &reader, StorageFileInfo &info) noexcept
try {
info = reader.GetInfo(true);
return true;
} catch (...) {
LogError(std::current_exception());
return false;
}
bool
DirectoryExists(Storage &storage, const Directory &directory) noexcept
{
StorageFileInfo info;
try {
info = storage.GetInfo(directory.GetPath(), true);
} catch (...) {
return false;
}
return directory.device == DEVICE_INARCHIVE ||
directory.device == DEVICE_CONTAINER
? info.IsRegular()
: info.IsDirectory();
}
static StorageFileInfo
GetDirectoryChildInfo(Storage &storage, const Directory &directory,
const char *name_utf8)
{
const auto uri_utf8 = PathTraitsUTF8::Build(directory.GetPath(),
name_utf8);
return storage.GetInfo(uri_utf8.c_str(), true);
}
bool
directory_child_is_regular(Storage &storage, const Directory &directory,
const char *name_utf8) noexcept
try {
return GetDirectoryChildInfo(storage, directory, name_utf8)
.IsRegular();
} catch (...) {
return false;
}
bool
directory_child_access(Storage &storage, const Directory &directory,
const char *name, int mode) noexcept
{
#ifdef _WIN32
/* CheckAccess() is useless on WIN32 */
(void)storage;
(void)directory;
(void)name;
(void)mode;
return true;
#else
const auto path = storage.MapChildFS(directory.GetPath(), name);
if (path.IsNull())
/* does not point to local file: silently ignore the
check */
return true;
return CheckAccess(path, mode) || errno != EACCES;
#endif
}
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