132 lines
2.9 KiB
C++
132 lines
2.9 KiB
C++
/*
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* Copyright (C) 2003-2015 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "ConfigPath.hxx"
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#include "fs/AllocatedPath.hxx"
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#include "fs/Traits.hxx"
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#include "fs/Domain.hxx"
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#include "fs/StandardDirectory.hxx"
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#include "util/Error.hxx"
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#include "ConfigGlobal.hxx"
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#include <assert.h>
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#include <string.h>
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#ifndef WIN32
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#include <pwd.h>
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/**
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* Determine a given user's home directory.
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*/
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static AllocatedPath
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GetHome(const char *user, Error &error)
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{
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AllocatedPath result = GetHomeDir(user);
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if (result.IsNull()) {
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error.Format(path_domain,
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"no such user: %s", user);
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return AllocatedPath::Null();
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}
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return result;
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}
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/**
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* Determine the current user's home directory.
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*/
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static AllocatedPath
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GetHome(Error &error)
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{
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AllocatedPath result = GetHomeDir();
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if (result.IsNull()) {
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error.Set(path_domain,
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"problems getting home for current user");
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return AllocatedPath::Null();
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}
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return result;
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}
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/**
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* Determine the configured user's home directory.
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*/
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static AllocatedPath
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GetConfiguredHome(Error &error)
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{
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const char *user = config_get_string(CONF_USER, nullptr);
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return user != nullptr
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? GetHome(user, error)
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: GetHome(error);
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}
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#endif
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AllocatedPath
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ParsePath(const char *path, Error &error)
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{
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assert(path != nullptr);
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#ifndef WIN32
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if (path[0] == '~') {
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++path;
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if (*path == '\0')
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return GetConfiguredHome(error);
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AllocatedPath home = AllocatedPath::Null();
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if (*path == '/') {
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home = GetConfiguredHome(error);
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++path;
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} else {
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const char *slash = strchr(path, '/');
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const char *end = slash == nullptr
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? path + strlen(path)
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: slash;
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const std::string user(path, end);
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home = GetHome(user.c_str(), error);
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if (slash == nullptr)
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return home;
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path = slash + 1;
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}
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if (home.IsNull())
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return AllocatedPath::Null();
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AllocatedPath path2 = AllocatedPath::FromUTF8(path, error);
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if (path2.IsNull())
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return AllocatedPath::Null();
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return AllocatedPath::Build(home, path2);
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} else if (!PathTraitsUTF8::IsAbsolute(path)) {
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error.Format(path_domain,
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"not an absolute path: %s", path);
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return AllocatedPath::Null();
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} else {
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#endif
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return AllocatedPath::FromUTF8(path, error);
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#ifndef WIN32
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}
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#endif
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}
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