158 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			158 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ config, lib, pkgs, ... }:
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with lib;
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let
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  cfg = config.services.ejabberd;
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  ctlcfg = pkgs.writeText "ejabberdctl.cfg" ''
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    ERL_EPMD_ADDRESS=127.0.0.1
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    ${cfg.ctlConfig}
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  '';
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  ectl = ''${cfg.package}/bin/ejabberdctl ${optionalString (cfg.configFile != null) "--config ${cfg.configFile}"} --ctl-config "${ctlcfg}" --spool "${cfg.spoolDir}" --logs "${cfg.logsDir}"'';
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  dumps = lib.escapeShellArgs cfg.loadDumps;
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in {
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  ###### interface
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  options = {
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    services.ejabberd = {
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      enable = mkOption {
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        type = types.bool;
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        default = false;
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        description = "Whether to enable ejabberd server";
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      };
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      package = mkOption {
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        type = types.package;
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        default = pkgs.ejabberd;
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        defaultText = "pkgs.ejabberd";
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        description = "ejabberd server package to use";
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      };
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      user = mkOption {
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        type = types.str;
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        default = "ejabberd";
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        description = "User under which ejabberd is ran";
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      };
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      group = mkOption {
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        type = types.str;
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        default = "ejabberd";
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        description = "Group under which ejabberd is ran";
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      };
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      spoolDir = mkOption {
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        type = types.path;
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        default = "/var/lib/ejabberd";
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        description = "Location of the spooldir of ejabberd";
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      };
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      logsDir = mkOption {
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        type = types.path;
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        default = "/var/log/ejabberd";
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        description = "Location of the logfile directory of ejabberd";
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      };
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      configFile = mkOption {
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        type = types.nullOr types.path;
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        description = "Configuration file for ejabberd in YAML format";
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        default = null;
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      };
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      ctlConfig = mkOption {
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        type = types.lines;
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        default = "";
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        description = "Configuration of ejabberdctl";
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      };
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      loadDumps = mkOption {
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        type = types.listOf types.path;
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        default = [];
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        description = "Configuration dumps that should be loaded on the first startup";
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        example = literalExample "[ ./myejabberd.dump ]";
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      };
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      imagemagick = mkOption {
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        type = types.bool;
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        default = false;
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        description = "Add ImageMagick to server's path; allows for image thumbnailing";
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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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    environment.systemPackages = [ cfg.package ];
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    users.users = optionalAttrs (cfg.user == "ejabberd") {
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      ejabberd = {
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        group = cfg.group;
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        home = cfg.spoolDir;
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        createHome = true;
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        uid = config.ids.uids.ejabberd;
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      };
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    };
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    users.groups = optionalAttrs (cfg.group == "ejabberd") {
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      ejabberd.gid = config.ids.gids.ejabberd;
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    };
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    systemd.services.ejabberd = {
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      description = "ejabberd server";
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      wantedBy = [ "multi-user.target" ];
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      after = [ "network.target" ];
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      path = [ pkgs.findutils pkgs.coreutils ] ++ lib.optional cfg.imagemagick pkgs.imagemagick;
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      serviceConfig = {
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        User = cfg.user;
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        Group = cfg.group;
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        ExecStart = "${ectl} foreground";
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        ExecStop = "${ectl} stop";
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        ExecReload = "${ectl} reload_config";
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      };
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      preStart = ''
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        if [ -z "$(ls -A '${cfg.spoolDir}')" ]; then
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          touch "${cfg.spoolDir}/.firstRun"
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        fi
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      '';
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      postStart = ''
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        while ! ${ectl} status >/dev/null 2>&1; do
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          if ! kill -0 "$MAINPID"; then exit 1; fi
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          sleep 0.1
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        done
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        if [ -e "${cfg.spoolDir}/.firstRun" ]; then
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          rm "${cfg.spoolDir}/.firstRun"
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          for src in ${dumps}; do
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            find "$src" -type f | while read dump; do
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              echo "Loading configuration dump at $dump"
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              ${ectl} load "$dump"
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            done
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          done
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        fi
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      '';
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    };
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    systemd.tmpfiles.rules = [
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      "d '${cfg.logsDir}' 0750 ${cfg.user} ${cfg.group} -"
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      "d '${cfg.spoolDir}' 0700 ${cfg.user} ${cfg.group} -"
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    ];
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    security.pam.services.ejabberd = {};
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  };
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}
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