dotfiles/hm/password/default.nix

144 lines
5 KiB
Nix

{
pkgs,
lib,
config,
...
}:
let
mod = config.xsession.windowManager.i3.config.modifier;
in
{
config = {
home.packages = with pkgs; [
pwgen
(pkgs.writeShellApplication {
name = "install-passwords";
runtimeInputs = [
yq
gawk
moreutils
];
text = (
lib.strings.concatLines (
map (
file:
''
(
echo "===== Preparing to write ${file.path}"
temp="$(mktemp --tmpdir="${builtins.dirOf file.path}")"
cat "${file.template}" > "$temp"
''
+ (lib.strings.concatLines (
map (
password:
(
if password.selector == null then
''
echo "Reading ${password.path} for substituting ${password.variable}"
value="$(pass "${password.path}" | head -n1)"
''
else
''
echo "Reading ${password.path} -> ${password.selector} for substituting ${password.variable}"
value="$(pass "${password.path}" | tail -n +2 | yq -r '.${password.selector}')"
''
)
+ ''
key="${password.variable}"
K="$key" V="$value" awk '{ gsub (ENVIRON["K"], ENVIRON["V"]); print }' "$temp" | sponge "$temp"
''
) (lib.attrsets.attrValues file.passwords)
))
+ ''
echo "Moving the file in place"
chown "${file.owner}" "$temp"
chmod u=r "$temp"
mv -f "$temp" "${file.path}"
)
''
) config.frogeye.passwordFiles
)
);
})
];
programs = {
bash.shellAliases = {
pw = ''${pkgs.pwgen}/bin/pwgen 32 -y''; # Generate passwords. ln((26*2+10)**32)/ln(2) ≅ 190 bits of entropy
};
password-store.enable = true;
};
xsession.windowManager.i3.config.keybindings."${mod}+c" = "exec --no-startup-id ${config.programs.rofi.pass.package}/bin/rofi-pass --last-used";
# TODO Try autopass.cr
};
options = {
frogeye.passwordFiles =
let
defaultvar = "@PASSWORD@";
pwtype =
{ name, ... }:
{
options = {
variable = lib.mkOption {
type = lib.types.str;
default = name;
description = "String in the template that will be substituted by the actual password";
};
path = lib.mkOption {
type = lib.types.str;
description = "Path to the password store entry";
};
selector = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = "If set, will parse the password metadata as YML and use selector (yq) instead of the password.";
};
};
};
mainConfig = config;
in
lib.mkOption {
default = [ ];
type = lib.types.listOf (
lib.types.submodule (
{ config, ... }:
{
options = {
path = lib.mkOption {
type = lib.types.str;
description = "Where to place the file.";
};
owner = lib.mkOption {
type = lib.types.str;
default = mainConfig.home.username;
description = "Who will own the file.";
};
template = lib.mkOption {
type = lib.types.path;
default = pkgs.writeTextFile {
name = "pwfile-template";
text = config.text;
};
description = "Path to the template used to make the file. Exclusive with `text`.";
};
text = lib.mkOption {
type = lib.types.str;
default = defaultvar;
description = "Content of the template used to make the file. Exclusive with `template`.";
};
passwords = lib.mkOption {
default = lib.optionalAttrs (config.password != null) { ${defaultvar} = config.password; };
type = lib.types.attrsOf (lib.types.submodule pwtype);
description = "Paths to passwords that will substitute the variables in the template. Exclusive with `password`";
};
password = lib.mkOption {
type = lib.types.submodule ({ ... }@args: pwtype (args // { name = defaultvar; }));
description = "Path to password that will substitute '@PASSWORD@' in the template. Exclusive with `passwords`.";
};
};
}
)
);
};
};
}