blob: fd58928d28219996ced6d761e5b9df8f138e4e72 (
plain) (
blame)
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
|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.libreddit;
args = concatStringsSep " " ([
"--port ${toString cfg.port}"
"--address ${cfg.address}"
]);
in
{
options = {
services.libreddit = {
enable = mkEnableOption (lib.mdDoc "Private front-end for Reddit");
package = mkOption {
type = types.package;
default = pkgs.libreddit;
defaultText = literalExpression "pkgs.libreddit";
description = lib.mdDoc "Libreddit package to use.";
};
address = mkOption {
default = "0.0.0.0";
example = "127.0.0.1";
type = types.str;
description = lib.mdDoc "The address to listen on";
};
port = mkOption {
default = 8080;
example = 8000;
type = types.port;
description = lib.mdDoc "The port to listen on";
};
openFirewall = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Open ports in the firewall for the libreddit web interface";
};
};
};
config = mkIf cfg.enable {
systemd.services.libreddit = {
description = "Private front-end for Reddit";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
serviceConfig = {
DynamicUser = true;
ExecStart = "${cfg.package}/bin/libreddit ${args}";
AmbientCapabilities = lib.mkIf (cfg.port < 1024) [ "CAP_NET_BIND_SERVICE" ];
Restart = "on-failure";
RestartSec = "2s";
# Hardening
CapabilityBoundingSet = if (cfg.port < 1024) then [ "CAP_NET_BIND_SERVICE" ] else [ "" ];
DeviceAllow = [ "" ];
LockPersonality = true;
MemoryDenyWriteExecute = true;
PrivateDevices = true;
# A private user cannot have process capabilities on the host's user
# namespace and thus CAP_NET_BIND_SERVICE has no effect.
PrivateUsers = (cfg.port >= 1024);
ProcSubset = "pid";
ProtectClock = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectProc = "invisible";
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
SystemCallArchitectures = "native";
SystemCallFilter = [ "@system-service" "~@privileged" "~@resources" ];
UMask = "0077";
};
};
networking.firewall = mkIf cfg.openFirewall {
allowedTCPPorts = [ cfg.port ];
};
};
}
|