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/*
* Copyright (C) 2003-2013 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"
#include "ConfigPath.hxx"
#include "fs/Path.hxx"
#include "util/Error.hxx"
#include "ConfigGlobal.hxx"
#include <glib.h>
#include <assert.h>
#include <string.h>
#ifndef WIN32
#include <pwd.h>
/**
* Determine a given user's home directory.
*/
static const char *
GetHome(const char *user, Error &error)
{
passwd *pw = getpwnam(user);
if (pw == nullptr) {
error.Format(path_domain,
"no such user: %s", user);
return nullptr;
}
return pw->pw_dir;
}
/**
* Determine the current user's home directory.
*/
static const char *
GetHome(Error &error)
{
const char *home = g_get_home_dir();
if (home == nullptr)
error.Set(path_domain,
"problems getting home for current user");
return home;
}
/**
* Determine the configured user's home directory.
*/
static const char *
GetConfiguredHome(Error &error)
{
const char *user = config_get_string(CONF_USER, nullptr);
return user != nullptr
? GetHome(user, error)
: GetHome(error);
}
#endif
Path
ParsePath(const char *path, Error &error)
{
assert(path != nullptr);
Path path2 = Path::FromUTF8(path, error);
if (path2.IsNull())
return Path::Null();
#ifndef WIN32
if (!g_path_is_absolute(path) && path[0] != '~') {
error.Format(path_domain,
"not an absolute path: %s", path);
return Path::Null();
} else if (path[0] == '~') {
const char *home;
if (path[1] == '/' || path[1] == '\0') {
home = GetConfiguredHome(error);
++path;
} else {
++path;
const char *slash = strchr(path, '/');
char *user = slash != nullptr
? g_strndup(path, slash - path)
: g_strdup(path);
home = GetHome(user, error);
g_free(user);
path = slash;
}
if (home == nullptr)
return Path::Null();
return Path::Build(home, path2);
} else {
#endif
return path2;
#ifndef WIN32
}
#endif
}
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