summaryrefslogtreecommitdiff
path: root/src/command/CommandError.cxx
blob: eecca1158c1bb52a58b6918795fe9f6f39eec1b7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
/*
 * 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 "CommandError.hxx"
#include "PlaylistError.hxx"
#include "db/DatabaseError.hxx"
#include "client/Response.hxx"
#include "Log.hxx"
#include "util/Exception.hxx"

#include <system_error>

#include <assert.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

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());
#ifdef ENABLE_DATABASE
	} catch (const DatabaseError &de) {
		return ToAck(de.GetCode());
#endif
	} catch (const std::system_error &e) {
		return ACK_ERROR_SYSTEM;
	} catch (const std::invalid_argument &e) {
		return ACK_ERROR_ARG;
#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)
{
	LogError(ep);
	r.Error(ToAck(ep), FullMessage(ep).c_str());
}