feat: add encrypted APOD greeter setup

This commit is contained in:
Jet 2026-05-06 10:46:11 -07:00
parent 49b64efd9e
commit 767677a7e8
No known key found for this signature in database
10 changed files with 343 additions and 45 deletions

View file

@ -3,6 +3,31 @@
let
greetdApodDir = "/var/lib/greetd/apod";
greetdApodCurrent = "${greetdApodDir}/current";
swaySession = pkgs.writeTextDir "share/wayland-sessions/sway.desktop" ''
[Desktop Entry]
Name=Sway
Comment=An i3-compatible Wayland compositor
Exec=${config.programs.sway.package}/bin/sway
Type=Application
DesktopNames=sway
'';
regreetPasswordPrompt = pkgs.regreet.overrideAttrs (oldAttrs: {
postPatch = (oldAttrs.postPatch or "") + ''
substituteInPlace src/gui/model.rs \
--replace-fail $' } else {\n let username = if let Some(username) = self.get_current_username() {' \
$' } else if self.sys_util.get_sessions().len() == 1 {\n let (session, sess_info) = self.sys_util.get_sessions().iter().next().expect("one session");\n info!("No session selected; using only available session: {session}");\n (Some(session.to_string()), Some(sess_info.clone()))\n } else {\n let username = if let Some(username) = self.get_current_username() {'
substituteInPlace src/gui/component.rs \
--replace-fail $' // Set the default behaviour of pressing the Return key to act like the login button.\n root.set_default_widget(Some(&widgets.ui.login_button));\n\n AsyncComponentParts { model, widgets }' \
$' // Set the default behaviour of pressing the Return key to act like the login button.\n root.set_default_widget(Some(&widgets.ui.login_button));\n\n // Immediately start authentication so the password entry appears and receives focus.\n sender.input(Self::Input::Login {\n input: String::new(),\n info: UserSessInfo::extract(\n &widgets.ui.usernames_box,\n &widgets.ui.username_entry,\n &widgets.ui.sessions_box,\n &widgets.ui.session_entry,\n ),\n });\n\n AsyncComponentParts { model, widgets }'
'';
});
regreetState = pkgs.writeText "regreet-state.toml" ''
last_user = "jet"
[user_to_last_sess]
jet = "Sway"
'';
fetchGreetdApod = pkgs.writeShellApplication {
name = "greetd-apod-wallpaper";
runtimeInputs = [
@ -34,29 +59,87 @@ let
install_current "$user_current" "$state_dir/bootstrap"
fi
curl_args=(
read_api_key_file() {
local key_file="$1"
if [ -r "$key_file" ]; then
while IFS= read -r line; do
case "$line" in
NASA_API_KEY=*)
api_key="''${line#NASA_API_KEY=}"
;;
esac
done < "$key_file"
fi
}
api_key="''${NASA_API_KEY:-}"
if [ -z "$api_key" ]; then
read_api_key_file "''${NASA_API_KEY_FILE:-/home/jet/.config/nasa-api.env}"
fi
if [ -z "$api_key" ]; then
read_api_key_file /etc/nasa-api.env
fi
if [ -z "$api_key" ]; then
api_key="DEMO_KEY"
fi
today="$(date +%F)"
for cached in "$state_dir/apod-$today".*; do
if [ -s "$cached" ]; then
ln -sfn "$cached" "$current_link"
exit 0
fi
done
api_curl_args=(
--fail
--silent
--show-error
--location
--retry 30
--retry-all-errors
--retry-delay 2
--connect-timeout 10
--max-time 300
--connect-timeout 5
--max-time 20
)
json="$(curl "''${curl_args[@]}" 'https://api.nasa.gov/planetary/apod?api_key=DEMO_KEY' || true)"
image_curl_args=(
--fail
--silent
--show-error
--location
--retry 2
--retry-delay 5
--retry-max-time 120
--connect-timeout 10
--max-time 60
)
api_request="$(mktemp)"
trap 'rm -f "$api_request"' EXIT
{
printf '%s\n' 'url = "https://api.nasa.gov/planetary/apod"'
printf '%s\n' 'get'
printf 'data-urlencode = "api_key=%s"\n' "$api_key"
printf '%s\n' 'data-urlencode = "thumbs=True"'
} > "$api_request"
chmod 0600 "$api_request"
json="$(curl "''${api_curl_args[@]}" --config "$api_request" || true)"
if [ -z "$json" ]; then
exit 0
fi
media_type="$(printf '%s' "$json" | jq -r '.media_type // empty')"
if [ "$media_type" != "image" ]; then
exit 0
fi
image_url="$(printf '%s' "$json" | jq -r '.hdurl // .url // empty')"
case "$media_type" in
image)
image_url="$(printf '%s' "$json" | jq -r '.hdurl // .url // empty')"
;;
video)
image_url="$(printf '%s' "$json" | jq -r '.thumbnail_url // empty')"
;;
*)
exit 0
;;
esac
if [ -z "$image_url" ]; then
exit 0
fi
@ -77,7 +160,7 @@ let
tmp="$target.tmp"
if [ ! -s "$target" ]; then
if curl "''${curl_args[@]}" "$image_url" -o "$tmp" && [ -s "$tmp" ]; then
if curl "''${image_curl_args[@]}" "$image_url" -o "$tmp" && [ -s "$tmp" ]; then
mv "$tmp" "$target"
chmod 0644 "$target"
else
@ -257,16 +340,17 @@ in
services.greetd = {
enable = true;
settings.default_session = {
command = "env GTK_USE_PORTAL=0 GDK_DEBUG=no-portals XDG_DATA_DIRS=/run/current-system/sw/share ${pkgs.dbus}/bin/dbus-run-session ${pkgs.cage}/bin/cage -s -d -- ${config.programs.regreet.package}/bin/regreet";
command = "env GTK_USE_PORTAL=0 GDK_DEBUG=no-portals SESSION_DIRS=/run/current-system/sw/share/wayland-sessions XDG_DATA_DIRS=/run/current-system/sw/share ${pkgs.dbus}/bin/dbus-run-session ${pkgs.cage}/bin/cage -s -d -- ${config.programs.regreet.package}/bin/regreet";
user = "greeter";
};
};
programs.regreet = {
enable = true;
package = regreetPasswordPrompt;
font = {
package = pkgs.nerd-fonts.commit-mono;
name = "CommitMono Nerd Font";
package = pkgs.atkinson-hyperlegible-next;
name = "Atkinson Hyperlegible Next";
size = 16;
};
settings = {
@ -285,14 +369,42 @@ in
services.accounts-daemon.enable = true;
age = {
identityPaths = [ "/home/jet/.ssh/id_ed25519" ];
secrets.nasa-api-env = {
file = ./secrets/nasa-api.env.age;
owner = "jet";
group = "users";
mode = "0400";
};
};
system.activationScripts.regreetDefaultSession.text = ''
${pkgs.coreutils}/bin/install -D -m 0644 ${regreetState} /var/lib/regreet/state.toml
chown greeter:greeter /var/lib/regreet/state.toml
'';
fonts = {
packages = [
pkgs.atkinson-hyperlegible-next
pkgs.nerd-fonts.commit-mono
];
fontconfig.defaultFonts = {
sansSerif = [ "Atkinson Hyperlegible Next" ];
serif = [ "Atkinson Hyperlegible Next" ];
monospace = [ "CommitMono Nerd Font" ];
};
};
systemd.services.greetd-apod-wallpaper = {
description = "Fetch NASA APOD wallpaper for greetd";
after = [ "network-online.target" ];
wants = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "oneshot";
ExecStart = "${fetchGreetdApod}/bin/greetd-apod-wallpaper";
EnvironmentFile = "-${config.age.secrets.nasa-api-env.path}";
TimeoutStartSec = "3min";
};
};
@ -428,9 +540,11 @@ in
docker
docker-compose
flatpak
swaySession
wget
nh
];
environment.pathsToLink = [ "/share/wayland-sessions" ];
programs.steam.enable = true;
programs.nix-index-database.comma.enable = true;