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/*
* Copyright (C) 2003-2015 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 "CommandError.hxx"
#include "db/DatabaseError.hxx"
#include "LocateUri.hxx"
#include "client/Response.hxx"
#include "util/Error.hxx"
#include "Log.hxx"
#include <system_error>
#include <assert.h>
#include <string.h>
#include <errno.h>
gcc_const
static enum ack
ToAck(PlaylistResult result)
{
switch (result) {
case PlaylistResult::SUCCESS:
break;
case PlaylistResult::DENIED:
return ACK_ERROR_PERMISSION;
case PlaylistResult::NO_SUCH_SONG:
case PlaylistResult::NO_SUCH_LIST:
return ACK_ERROR_NO_EXIST;
case PlaylistResult::LIST_EXISTS:
return ACK_ERROR_EXIST;
case PlaylistResult::BAD_NAME:
case PlaylistResult::BAD_RANGE:
return ACK_ERROR_ARG;
case PlaylistResult::NOT_PLAYING:
return ACK_ERROR_PLAYER_SYNC;
case PlaylistResult::TOO_LARGE:
return ACK_ERROR_PLAYLIST_MAX;
case PlaylistResult::DISABLED:
break;
}
return ACK_ERROR_UNKNOWN;
}
#ifdef ENABLE_DATABASE
gcc_const
static enum ack
ToAck(DatabaseErrorCode code)
{
switch (code) {
case DatabaseErrorCode::DISABLED:
case DatabaseErrorCode::NOT_FOUND:
return ACK_ERROR_NO_EXIST;
case DatabaseErrorCode::CONFLICT:
return ACK_ERROR_ARG;
}
return ACK_ERROR_UNKNOWN;
}
#endif
CommandResult
print_playlist_result(Response &r, PlaylistResult result)
{
switch (result) {
case PlaylistResult::SUCCESS:
return CommandResult::OK;
case PlaylistResult::DENIED:
r.Error(ACK_ERROR_PERMISSION, "Access denied");
return CommandResult::ERROR;
case PlaylistResult::NO_SUCH_SONG:
r.Error(ACK_ERROR_NO_EXIST, "No such song");
return CommandResult::ERROR;
case PlaylistResult::NO_SUCH_LIST:
r.Error(ACK_ERROR_NO_EXIST, "No such playlist");
return CommandResult::ERROR;
case PlaylistResult::LIST_EXISTS:
r.Error(ACK_ERROR_EXIST, "Playlist already exists");
return CommandResult::ERROR;
case PlaylistResult::BAD_NAME:
r.Error(ACK_ERROR_ARG,
"playlist name is invalid: "
"playlist names may not contain slashes,"
" newlines or carriage returns");
return CommandResult::ERROR;
case PlaylistResult::BAD_RANGE:
r.Error(ACK_ERROR_ARG, "Bad song index");
return CommandResult::ERROR;
case PlaylistResult::NOT_PLAYING:
r.Error(ACK_ERROR_PLAYER_SYNC, "Not playing");
return CommandResult::ERROR;
case PlaylistResult::TOO_LARGE:
r.Error(ACK_ERROR_PLAYLIST_MAX,
"playlist is at the max size");
return CommandResult::ERROR;
case PlaylistResult::DISABLED:
r.Error(ACK_ERROR_UNKNOWN,
"stored playlist support is disabled");
return CommandResult::ERROR;
}
assert(0);
return CommandResult::ERROR;
}
gcc_pure
static enum ack
ToAck(const Error &error)
{
if (error.IsDomain(playlist_domain)) {
return ToAck((PlaylistResult)error.GetCode());
} else if (error.IsDomain(ack_domain)) {
return (enum ack)error.GetCode();
#ifdef ENABLE_DATABASE
} else if (error.IsDomain(db_domain)) {
return ToAck((DatabaseErrorCode)error.GetCode());
#endif
} else if (error.IsDomain(locate_uri_domain)) {
return ACK_ERROR_ARG;
} else if (error.IsDomain(errno_domain)) {
return ACK_ERROR_SYSTEM;
}
return ACK_ERROR_UNKNOWN;
}
CommandResult
print_error(Response &r, const Error &error)
{
assert(error.IsDefined());
LogError(error);
r.Error(ToAck(error), error.GetMessage());
return CommandResult::ERROR;
}
gcc_pure
static enum ack
ToAck(std::exception_ptr ep)
{
try {
std::rethrow_exception(ep);
} catch (const ProtocolError &pe) {
return pe.GetCode();
} catch (const PlaylistError &pe) {
return ToAck(pe.GetCode());
} catch (const std::system_error &e) {
return ACK_ERROR_SYSTEM;
#if defined(__GLIBCXX__) && __GLIBCXX__ < 20151204
} catch (const std::exception &e) {
#else
} catch (...) {
#endif
try {
#if defined(__GLIBCXX__) && __GLIBCXX__ < 20151204
/* workaround for g++ 4.x: no overload for
rethrow_exception(exception_ptr) */
std::rethrow_if_nested(e);
#else
std::rethrow_if_nested(ep);
#endif
return ACK_ERROR_UNKNOWN;
} catch (...) {
return ToAck(std::current_exception());
}
}
}
void
PrintError(Response &r, std::exception_ptr ep)
{
try {
std::rethrow_exception(ep);
} catch (const std::exception &e) {
LogError(e);
} catch (...) {
}
try {
std::rethrow_exception(ep);
} catch (const std::exception &e) {
r.Error(ToAck(ep), e.what());
} catch (...) {
r.Error(ACK_ERROR_UNKNOWN, "Unknown error");
}
}
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