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73 lines
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{pkgs, config, ...}:
let
inherit (pkgs.lib) mkOption;
options = {
services = {
guestUsers = {
enable = mkOption {
default = false;
description = "
Whether to enable automatic addition of users with empty passwords
";
};
users = mkOption {
default = ["guest"];
description = "
List of usernames to add
";
};
includeRoot = mkOption {
default = false;
description = "
LEAVE THAT ALONE; whether to reset root password
";
};
extraGroups = mkOption {
default = ["audio"];
description = "
Extra groups to grant
";
};
};
};
};
inherit (pkgs.lib) concatStringsSep optionalString;
cfg = config.services.guestUsers;
userEntry = user:
{
name = user;
description = "NixOS guest user";
home = "/home/${user}";
createHome = true;
group = "users";
extraGroups = cfg.extraGroups;
shell = "/bin/sh";
};
nameString = (concatStringsSep " " cfg.users) + optionalString cfg.includeRoot " root";
in
pkgs.lib.mkIf cfg.enable {
require = options;
system.activationScripts = {
clearPasswords = pkgs.lib.fullDepEntry
''
for i in ${nameString}; do
echo | ${pkgs.pwdutils}/bin/passwd --stdin $i
done
'' ["defaultPath" "users" "groups"];
};
services.mingetty.helpLine = "\nThese users have empty passwords: ${nameString}";
users.extraUsers = map userEntry cfg.users;
}