blob: 1fb7102e7f3ee35deac7e067bae86b467635697e (
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
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
|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.dovecot2;
dovecotConf =
''
base_dir = /var/run/dovecot2/
protocols = ${optionalString cfg.enableImap "imap"} ${optionalString cfg.enablePop3 "pop3"}
''
+ (if cfg.sslServerCert!="" then
''
ssl_cert = <${cfg.sslServerCert}
ssl_key = <${cfg.sslServerKey}
ssl_ca = <${cfg.sslCACert}
disable_plaintext_auth = yes
'' else ''
ssl = no
disable_plaintext_auth = no
'')
+ ''
default_internal_user = ${cfg.user}
mail_location = ${cfg.mailLocation}
maildir_copy_with_hardlinks = yes
auth_mechanisms = plain login
service auth {
user = root
}
userdb {
driver = passwd
}
passdb {
driver = pam
args = ${optionalString cfg.showPAMFailure "failure_show_msg=yes"} dovecot2
}
pop3_uidl_format = %08Xv%08Xu
'' + cfg.extraConfig;
confFile = pkgs.writeText "dovecot.conf" dovecotConf;
in
{
###### interface
options = {
services.dovecot2 = {
enable = mkOption {
default = false;
description = "Whether to enable the Dovecot 2.x POP3/IMAP server.";
};
enablePop3 = mkOption {
default = true;
description = "Start the POP3 listener (when Dovecot is enabled).";
};
enableImap = mkOption {
default = true;
description = "Start the IMAP listener (when Dovecot is enabled).";
};
user = mkOption {
default = "dovecot2";
description = "Dovecot user name.";
};
group = mkOption {
default = "dovecot2";
description = "Dovecot group name.";
};
extraConfig = mkOption {
default = "";
example = "mail_debug = yes";
description = "Additional entries to put verbatim into Dovecot's config file.";
};
mailLocation = mkOption {
default = "maildir:/var/spool/mail/%u"; /* Same as inbox, as postfix */
example = "maildir:~/mail:INBOX=/var/spool/mail/%u";
description = ''
Location that dovecot will use for mail folders. Dovecot mail_location option.
'';
};
sslServerCert = mkOption {
default = "";
description = "Server certificate";
};
sslCACert = mkOption {
default = "";
description = "CA certificate used by the server certificate.";
};
sslServerKey = mkOption {
default = "";
description = "Server key.";
};
showPAMFailure = mkOption {
default = false;
description = "Show the PAM failure message on authentication error (useful for OTPW).";
};
};
};
###### implementation
config = mkIf config.services.dovecot2.enable {
security.pam.services.dovecot2 = {};
users.extraUsers = [
{ name = cfg.user;
uid = config.ids.uids.dovecot2;
description = "Dovecot user";
group = cfg.group;
}
{ name = "dovenull";
uid = config.ids.uids.dovenull2;
description = "Dovecot user for untrusted logins";
group = cfg.group;
}
];
users.extraGroups = singleton
{ name = cfg.group;
gid = config.ids.gids.dovecot2;
};
jobs.dovecot2 =
{ description = "Dovecot IMAP/POP3 server";
startOn = "started networking";
preStart =
''
${pkgs.coreutils}/bin/mkdir -p /var/run/dovecot2 /var/run/dovecot2/login
${pkgs.coreutils}/bin/chown -R ${cfg.user}:${cfg.group} /var/run/dovecot2
'';
exec = "${pkgs.dovecot}/sbin/dovecot -F -c ${confFile}";
};
environment.systemPackages = [ pkgs.dovecot ];
assertions = [{ assertion = cfg.enablePop3 || cfg.enableImap;
message = "dovecot needs at least one of the IMAP or POP3 listeners enabled";}];
};
}
|