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/*
* Copyright 2003-2016 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 "LocateUri.hxx"
#include "client/Client.hxx"
#include "fs/AllocatedPath.hxx"
#include "ls.hxx"
#include "util/UriUtil.hxx"
#include "util/StringCompare.hxx"
#include "util/Error.hxx"
#include "util/Domain.hxx"
#ifdef ENABLE_DATABASE
#include "storage/StorageInterface.hxx"
#endif
const Domain locate_uri_domain("locate_uri");
static LocatedUri
LocateFileUri(const char *uri, const Client *client,
#ifdef ENABLE_DATABASE
const Storage *storage,
#endif
Error &error)
{
auto path = AllocatedPath::FromUTF8(uri, error);
if (path.IsNull())
return LocatedUri::Unknown();
#ifdef ENABLE_DATABASE
if (storage != nullptr) {
const char *suffix = storage->MapToRelativeUTF8(uri);
if (suffix != nullptr)
/* this path was relative to the music
directory */
return LocatedUri(LocatedUri::Type::RELATIVE, suffix);
}
#endif
if (client != nullptr && !client->AllowFile(path, error))
return LocatedUri::Unknown();
return LocatedUri(LocatedUri::Type::PATH, uri, std::move(path));
}
static LocatedUri
LocateAbsoluteUri(const char *uri,
#ifdef ENABLE_DATABASE
const Storage *storage,
#endif
Error &error)
{
if (!uri_supported_scheme(uri)) {
error.Set(locate_uri_domain, "Unsupported URI scheme");
return LocatedUri::Unknown();
}
#ifdef ENABLE_DATABASE
if (storage != nullptr) {
const char *suffix = storage->MapToRelativeUTF8(uri);
if (suffix != nullptr)
return LocatedUri(LocatedUri::Type::RELATIVE, suffix);
}
#endif
return LocatedUri(LocatedUri::Type::ABSOLUTE, uri);
}
LocatedUri
LocateUri(const char *uri, const Client *client,
#ifdef ENABLE_DATABASE
const Storage *storage,
#endif
Error &error)
{
/* skip the obsolete "file://" prefix */
const char *path_utf8 = StringAfterPrefix(uri, "file://");
if (path_utf8 != nullptr) {
if (!PathTraitsUTF8::IsAbsolute(path_utf8)) {
error.Set(locate_uri_domain, "Malformed file:// URI");
return LocatedUri::Unknown();
}
return LocateFileUri(path_utf8, client,
#ifdef ENABLE_DATABASE
storage,
#endif
error);
} else if (PathTraitsUTF8::IsAbsolute(uri))
return LocateFileUri(uri, client,
#ifdef ENABLE_DATABASE
storage,
#endif
error);
else if (uri_has_scheme(uri))
return LocateAbsoluteUri(uri,
#ifdef ENABLE_DATABASE
storage,
#endif
error);
else
return LocatedUri(LocatedUri::Type::RELATIVE, uri);
}
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