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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.namecoind;
namecoinConf =
let
useSSL = (cfg.rpcCertificate != null) && (cfg.rpcKey != null);
in
pkgs.writeText "namecoin.conf" ''
server=1
daemon=0
rpcallowip=127.0.0.1
walletpath=${cfg.wallet}
gen=${if cfg.generate then "1" else "0"}
rpcssl=${if useSSL then "1" else "0"}
${optionalString useSSL "rpcsslcertificatechainfile=${cfg.rpcCertificate}"}
${optionalString useSSL "rpcsslprivatekeyfile=${cfg.rpcKey}"}
${optionalString useSSL "rpcsslciphers=TLSv1.2+HIGH:TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!3DES:@STRENGTH"}
txindex=1
txprevcache=1
'';
in
{
###### interface
options = {
services.namecoind = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to run namecoind.
'';
};
wallet = mkOption {
type = types.path;
example = "/etc/namecoin/wallet.dat";
description = ''
Wallet file. The ownership of the file has to be
namecoin:namecoin, and the permissions must be 0640.
'';
};
userFile = mkOption {
type = types.nullOr types.path;
default = null;
example = "/etc/namecoin/user";
description = ''
File containing the user name and user password to
authenticate RPC connections to namecoind.
The content of the file is of the form:
<literal>
USER=namecoin
PASSWORD=secret
</literal>
The ownership of the file has to be namecoin:namecoin,
and the permissions must be 0640.
'';
};
generate = mkOption {
type = types.bool;
default = false;
description = ''
Whether to generate (mine) Namecoins.
'';
};
rpcCertificate = mkOption {
type = types.nullOr types.path;
default = null;
example = "/etc/namecoin/server.cert";
description = ''
Certificate file for securing RPC connections.
'';
};
rpcKey = mkOption {
type = types.nullOr types.path;
default = null;
example = "/etc/namecoin/server.pem";
description = ''
Key file for securing RPC connections.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
users.extraUsers = singleton
{ name = "namecoin";
uid = config.ids.uids.namecoin;
description = "Namecoin daemon user";
home = "/var/lib/namecoin";
createHome = true;
};
users.extraGroups = singleton
{ name = "namecoin";
gid = config.ids.gids.namecoin;
};
systemd.services.namecoind = {
description = "Namecoind Daemon";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
preStart = ''
if [ "$(stat --printf '%u' ${cfg.userFile})" != "${toString config.ids.uids.namecoin}" \
-o "$(stat --printf '%g' ${cfg.userFile})" != "${toString config.ids.gids.namecoin}" \
-o "$(stat --printf '%a' ${cfg.userFile})" != "640" ]; then
echo "ERROR: bad ownership or rights on ${cfg.userFile}" >&2
exit 1
fi
if [ "$(stat --printf '%u' ${cfg.wallet})" != "${toString config.ids.uids.namecoin}" \
-o "$(stat --printf '%g' ${cfg.wallet})" != "${toString config.ids.gids.namecoin}" \
-o "$(stat --printf '%a' ${cfg.wallet})" != "640" ]; then
echo "ERROR: bad ownership or rights on ${cfg.wallet}" >&2
exit 1
fi
'';
serviceConfig = {
Type = "simple";
User = "namecoin";
EnvironmentFile = cfg.userFile;
ExecStart = "${pkgs.altcoins.namecoind}/bin/namecoind -conf=${namecoinConf} -rpcuser=\${USER} -rpcpassword=\${PASSWORD} -printtoconsole";
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
ExecStop = "${pkgs.coreutils}/bin/kill -KILL $MAINPID";
StandardOutput = "null";
Nice = "10";
};
};
};
}
|