blob: b0b9264e816662b0058747db539b892d01dee624 (
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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
{ config, lib, pkgs, ... }:
with lib;
let
name = "snapserver";
cfg = config.services.snapserver;
# Using types.nullOr to inherit upstream defaults.
sampleFormat = mkOption {
type = with types; nullOr str;
default = null;
description = ''
Default sample format.
'';
example = "48000:16:2";
};
codec = mkOption {
type = with types; nullOr str;
default = null;
description = ''
Default audio compression method.
'';
example = "flac";
};
streamToOption = name: opt:
let
os = val:
optionalString (val != null) "${val}";
os' = prefixx: val:
optionalString (val != null) (prefixx + "${val}");
flatten = key: value:
"&${key}=${value}";
in
"-s ${opt.type}://" + os opt.location + "?" + os' "name=" name
+ concatStrings (mapAttrsToList flatten opt.query);
optionalNull = val: ret:
optional (val != null) ret;
optionString = concatStringsSep " " (mapAttrsToList streamToOption cfg.streams
++ ["-p ${toString cfg.port}"]
++ ["--controlPort ${toString cfg.controlPort}"]
++ optionalNull cfg.sampleFormat "--sampleFormat ${cfg.sampleFormat}"
++ optionalNull cfg.codec "-c ${cfg.codec}"
++ optionalNull cfg.streamBuffer "--streamBuffer ${cfg.streamBuffer}"
++ optionalNull cfg.buffer "-b ${cfg.buffer}"
++ optional cfg.sendToMuted "--sendToMuted");
in {
###### interface
options = {
services.snapserver = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable snapserver.
'';
};
port = mkOption {
type = types.port;
default = 1704;
description = ''
The port that snapclients can connect to.
'';
};
controlPort = mkOption {
type = types.port;
default = 1705;
description = ''
The port for control connections (JSON-RPC).
'';
};
openFirewall = mkOption {
type = types.bool;
default = true;
description = ''
Whether to automatically open the specified ports in the firewall.
'';
};
inherit sampleFormat;
inherit codec;
streams = mkOption {
type = with types; attrsOf (submodule {
options = {
location = mkOption {
type = types.path;
description = ''
The location of the pipe.
'';
};
type = mkOption {
type = types.enum [ "pipe" "file" "process" "spotify" "airplay" ];
default = "pipe";
description = ''
The type of input stream.
'';
};
query = mkOption {
type = attrsOf str;
default = {};
description = ''
Key-value pairs that convey additional parameters about a stream.
'';
example = literalExample ''
# for type == "pipe":
{
mode = "listen";
};
# for type == "process":
{
params = "--param1 --param2";
logStderr = "true";
};
'';
};
inherit sampleFormat;
inherit codec;
};
});
default = { default = {}; };
description = ''
The definition for an input source.
'';
example = literalExample ''
{
mpd = {
type = "pipe";
location = "/run/snapserver/mpd";
sampleFormat = "48000:16:2";
codec = "pcm";
};
};
'';
};
streamBuffer = mkOption {
type = with types; nullOr int;
default = null;
description = ''
Stream read (input) buffer in ms.
'';
example = 20;
};
buffer = mkOption {
type = with types; nullOr int;
default = null;
description = ''
Network buffer in ms.
'';
example = 1000;
};
sendToMuted = mkOption {
type = types.bool;
default = false;
description = ''
Send audio to muted clients.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
systemd.services.snapserver = {
after = [ "network.target" ];
description = "Snapserver";
wantedBy = [ "multi-user.target" ];
before = [ "mpd.service" "mopidy.service" ];
serviceConfig = {
DynamicUser = true;
ExecStart = "${pkgs.snapcast}/bin/snapserver --daemon ${optionString}";
Type = "forking";
LimitRTPRIO = 50;
LimitRTTIME = "infinity";
NoNewPrivileges = true;
PIDFile = "/run/${name}/pid";
ProtectKernelTunables = true;
ProtectControlGroups = true;
ProtectKernelModules = true;
RestrictAddressFamilies = "AF_INET AF_INET6 AF_UNIX";
RestrictNamespaces = true;
RuntimeDirectory = name;
StateDirectory = name;
};
};
networking.firewall.allowedTCPPorts = optionals cfg.openFirewall [ cfg.port cfg.controlPort ];
};
meta = {
maintainers = with maintainers; [ tobim ];
};
}
|
