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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.asterisk;
asteriskUser = "asterisk";
asteriskGroup = "asterisk";
varlibdir = "/var/lib/asterisk";
spooldir = "/var/spool/asterisk";
logdir = "/var/log/asterisk";
# Add filecontents from files of useTheseDefaultConfFiles to confFiles, do not override
defaultConfFiles = subtractLists (attrNames cfg.confFiles) cfg.useTheseDefaultConfFiles;
allConfFiles =
cfg.confFiles //
builtins.listToAttrs (map (x: { name = x;
value = builtins.readFile (cfg.package + "/etc/asterisk/" + x); })
defaultConfFiles);
asteriskEtc = pkgs.stdenv.mkDerivation
((mapAttrs' (name: value: nameValuePair
# Fudge the names to make bash happy
((replaceChars ["."] ["_"] name) + "_")
(value)
) allConfFiles) //
{
confFilesString = concatStringsSep " " (
attrNames allConfFiles
);
name = "asterisk-etc";
# Default asterisk.conf file
# (Notice that astetcdir will be set to the path of this derivation)
asteriskConf = ''
[directories]
astetcdir => /etc/asterisk
astmoddir => ${cfg.package}/lib/asterisk/modules
astvarlibdir => /var/lib/asterisk
astdbdir => /var/lib/asterisk
astkeydir => /var/lib/asterisk
astdatadir => /var/lib/asterisk
astagidir => /var/lib/asterisk/agi-bin
astspooldir => /var/spool/asterisk
astrundir => /run/asterisk
astlogdir => /var/log/asterisk
astsbindir => ${cfg.package}/sbin
'';
extraConf = cfg.extraConfig;
# Loading all modules by default is considered sensible by the authors of
# "Asterisk: The Definitive Guide". Secure sites will likely want to
# specify their own "modules.conf" in the confFiles option.
modulesConf = ''
[modules]
autoload=yes
'';
# Use syslog for logging so logs can be viewed with journalctl
loggerConf = ''
[general]
[logfiles]
syslog.local0 => notice,warning,error
'';
buildCommand = ''
mkdir -p "$out"
# Create asterisk.conf, pointing astetcdir to the path of this derivation
echo "$asteriskConf" | sed "s|@out@|$out|g" > "$out"/asterisk.conf
echo "$extraConf" >> "$out"/asterisk.conf
echo "$modulesConf" > "$out"/modules.conf
echo "$loggerConf" > "$out"/logger.conf
# Config files specified in confFiles option override all other files
for i in $confFilesString; do
conf=$(echo "$i"_ | sed 's/\./_/g')
echo "''${!conf}" > "$out"/"$i"
done
'';
});
in
{
options = {
services.asterisk = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable the Asterisk PBX server.
'';
};
extraConfig = mkOption {
default = "";
type = types.lines;
example = ''
[options]
verbose=3
debug=3
'';
description = ''
Extra configuration options appended to the default
<literal>asterisk.conf</literal> file.
'';
};
confFiles = mkOption {
default = {};
type = types.attrsOf types.str;
example = literalExpression
''
{
"extensions.conf" = '''
[tests]
; Dial 100 for "hello, world"
exten => 100,1,Answer()
same => n,Wait(1)
same => n,Playback(hello-world)
same => n,Hangup()
[softphones]
include => tests
[unauthorized]
''';
"sip.conf" = '''
[general]
allowguest=no ; Require authentication
context=unauthorized ; Send unauthorized users to /dev/null
srvlookup=no ; Don't do DNS lookup
udpbindaddr=0.0.0.0 ; Listen on all interfaces
nat=force_rport,comedia ; Assume device is behind NAT
[softphone](!)
type=friend ; Match on username first, IP second
context=softphones ; Send to softphones context in
; extensions.conf file
host=dynamic ; Device will register with asterisk
disallow=all ; Manually specify codecs to allow
allow=g722
allow=ulaw
allow=alaw
[myphone](softphone)
secret=GhoshevFew ; Change this password!
''';
"logger.conf" = '''
[general]
[logfiles]
; Add debug output to log
syslog.local0 => notice,warning,error,debug
''';
}
'';
description = ''
Sets the content of config files (typically ending with
<literal>.conf</literal>) in the Asterisk configuration directory.
Note that if you want to change <literal>asterisk.conf</literal>, it
is preferable to use the <option>services.asterisk.extraConfig</option>
option over this option. If <literal>"asterisk.conf"</literal> is
specified with the <option>confFiles</option> option (not recommended),
you must be prepared to set your own <literal>astetcdir</literal>
path.
See
<link xlink:href="http://www.asterisk.org/community/documentation"/>
for more examples of what is possible here.
'';
};
useTheseDefaultConfFiles = mkOption {
default = [ "ari.conf" "acl.conf" "agents.conf" "amd.conf" "calendar.conf" "cdr.conf" "cdr_syslog.conf" "cdr_custom.conf" "cel.conf" "cel_custom.conf" "cli_aliases.conf" "confbridge.conf" "dundi.conf" "features.conf" "hep.conf" "iax.conf" "pjsip.conf" "pjsip_wizard.conf" "phone.conf" "phoneprov.conf" "queues.conf" "res_config_sqlite3.conf" "res_parking.conf" "statsd.conf" "udptl.conf" "unistim.conf" ];
type = types.listOf types.str;
example = [ "sip.conf" "dundi.conf" ];
description = ''Sets these config files to the default content. The default value for
this option contains all necesscary files to avoid errors at startup.
This does not override settings via <option>services.asterisk.confFiles</option>.
'';
};
extraArguments = mkOption {
default = [];
type = types.listOf types.str;
example =
[ "-vvvddd" "-e" "1024" ];
description = ''
Additional command line arguments to pass to Asterisk.
'';
};
package = mkOption {
type = types.package;
default = pkgs.asterisk;
defaultText = literalExpression "pkgs.asterisk";
description = "The Asterisk package to use.";
};
};
};
config = mkIf cfg.enable {
environment.systemPackages = [ cfg.package ];
environment.etc.asterisk.source = asteriskEtc;
users.users.asterisk =
{ name = asteriskUser;
group = asteriskGroup;
uid = config.ids.uids.asterisk;
description = "Asterisk daemon user";
home = varlibdir;
};
users.groups.asterisk =
{ name = asteriskGroup;
gid = config.ids.gids.asterisk;
};
systemd.services.asterisk = {
description = ''
Asterisk PBX server
'';
wantedBy = [ "multi-user.target" ];
# Do not restart, to avoid disruption of running calls. Restart unit by yourself!
restartIfChanged = false;
preStart = ''
# Copy skeleton directory tree to /var
for d in '${varlibdir}' '${spooldir}' '${logdir}'; do
# TODO: Make exceptions for /var directories that likely should be updated
if [ ! -e "$d" ]; then
mkdir -p "$d"
cp --recursive ${cfg.package}/"$d"/* "$d"/
chown --recursive ${asteriskUser}:${asteriskGroup} "$d"
find "$d" -type d | xargs chmod 0755
fi
done
'';
serviceConfig = {
ExecStart =
let
# FIXME: This doesn't account for arguments with spaces
argString = concatStringsSep " " cfg.extraArguments;
in
"${cfg.package}/bin/asterisk -U ${asteriskUser} -C /etc/asterisk/asterisk.conf ${argString} -F";
ExecReload = ''${cfg.package}/bin/asterisk -x "core reload"
'';
Type = "forking";
PIDFile = "/run/asterisk/asterisk.pid";
};
};
};
}
|