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