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/*
* Copyright 2003-2021 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 "TagAny.hxx"
#include "TagStream.hxx"
#include "TagFile.hxx"
#include "tag/Generic.hxx"
#include "storage/StorageInterface.hxx"
#include "client/Client.hxx"
#include "protocol/Ack.hxx"
#include "fs/AllocatedPath.hxx"
#include "input/InputStream.hxx"
#include "util/Compiler.h"
#include "util/UriExtract.hxx"
#include "LocateUri.hxx"
static void
TagScanStream(const char *uri, TagHandler &handler)
{
Mutex mutex;
auto is = InputStream::OpenReady(uri, mutex);
if (!tag_stream_scan(*is, handler))
throw ProtocolError(ACK_ERROR_NO_EXIST, "Failed to load file");
ScanGenericTags(*is, handler);
}
static void
TagScanFile(const Path path_fs, TagHandler &handler)
{
if (!ScanFileTagsNoGeneric(path_fs, handler))
throw ProtocolError(ACK_ERROR_NO_EXIST, "Failed to load file");
ScanGenericTags(path_fs, handler);
}
static void
TagScanDatabase(Client &client, const char *uri, TagHandler &handler)
{
#ifdef ENABLE_DATABASE
const Storage *storage = client.GetStorage();
if (storage == nullptr) {
#else
(void)client;
(void)uri;
(void)handler;
#endif
throw ProtocolError(ACK_ERROR_NO_EXIST, "No database");
#ifdef ENABLE_DATABASE
}
{
const auto path_fs = storage->MapFS(uri);
if (!path_fs.IsNull())
return TagScanFile(path_fs, handler);
}
{
const auto absolute_uri = storage->MapUTF8(uri);
if (uri_has_scheme(absolute_uri.c_str()))
return TagScanStream(absolute_uri.c_str(), handler);
}
throw ProtocolError(ACK_ERROR_NO_EXIST, "No such file");
#endif
}
void
TagScanAny(Client &client, const char *uri, TagHandler &handler)
{
const auto located_uri = LocateUri(UriPluginKind::INPUT, uri, &client
#ifdef ENABLE_DATABASE
, nullptr
#endif
);
switch (located_uri.type) {
case LocatedUri::Type::ABSOLUTE:
return TagScanStream(located_uri.canonical_uri, handler);
case LocatedUri::Type::RELATIVE:
return TagScanDatabase(client, located_uri.canonical_uri,
handler);
case LocatedUri::Type::PATH:
return TagScanFile(located_uri.path, handler);
}
gcc_unreachable();
}
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