1 Commits

Author SHA1 Message Date
aee39fc906 WIP: centralize mpv broker 2024-08-04 16:15:11 +02:00
12 changed files with 608 additions and 1899 deletions

1580
Cargo.lock generated

File diff suppressed because it is too large Load Diff

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@@ -9,31 +9,14 @@ readme = "README.md"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
aide = { version = "0.13.4", features = [
"axum",
"axum-extra",
"axum-extra-query",
"axum-extra-form",
"axum-ws",
"macros",
"scalar",
] }
anyhow = "1.0.82"
axum = { version = "0.6.20", features = ["macros", "ws"] }
axum-jsonschema = { version = "0.8.0", features = ["aide"] }
axum-macros = "0.4.1"
axum = { version = "0.6.20", features = ["macros"] }
clap = { version = "4.4.1", features = ["derive"] }
clap-verbosity-flag = "2.2.2"
env_logger = "0.10.0"
log = "0.4.20"
mpvipc-async = { git = "https://git.pvv.ntnu.no/oysteikt/mpvipc-async.git", rev = "v0.1.0" }
sd-notify = "0.4.3"
schemars = "0.8.16"
serde = { version = "1.0.188", features = ["derive"] }
serde_json = "1.0.105"
systemd-journal-logger = "2.2.0"
tempfile = "3.11.0"
serde_urlencoded = "0.7.1"
tokio = { version = "1.32.0", features = ["full"] }
tower = { version = "0.4.13", features = ["full"] }
tower-http = { version = "0.4.3", features = ["full"] }

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@@ -1,3 +0,0 @@
[youtube]
profile-cond=path:find('youtu%.?be')
--ytdl-format="bestvideo[height<=?720][vcodec!~='vp0?9']+bestaudio/best"

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@@ -4,29 +4,12 @@
, rustPlatform
, makeWrapper
, mpv
, wrapped ? false
}:
rustPlatform.buildRustPackage rec {
pname = "greg-ng";
version = "0.1.0";
src = builtins.filterSource (path: type: let
baseName = baseNameOf (toString path);
in !(lib.any (b: b) [
(!(lib.cleanSourceFilter path type))
(type == "directory" && lib.elem baseName [
".direnv"
".git"
"target"
"result"
])
(type == "regular" && lib.elem baseName [
"flake.nix"
"default.nix"
"module.nix"
".envrc"
])
])) ./.;
src = lib.cleanSource ./.;
nativeBuildInputs = [ makeWrapper ];
@@ -37,7 +20,7 @@ rustPlatform.buildRustPackage rec {
};
};
postInstall = lib.optionalString wrapped ''
postInstall = ''
wrapProgram $out/bin/greg-ng \
--prefix PATH : '${lib.makeBinPath [ mpv ]}'
'';

12
flake.lock generated
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@@ -2,11 +2,11 @@
"nodes": {
"nixpkgs": {
"locked": {
"lastModified": 1729256560,
"narHash": "sha256-/uilDXvCIEs3C9l73JTACm4quuHUsIHcns1c+cHUJwA=",
"lastModified": 1722421184,
"narHash": "sha256-/DJBI6trCeVnasdjUo9pbnodCLZcFqnVZiLUfqLH4jA=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "4c2fcb090b1f3e5b47eaa7bd33913b574a11e0a0",
"rev": "9f918d616c5321ad374ae6cb5ea89c9e04bf3e58",
"type": "github"
},
"original": {
@@ -29,11 +29,11 @@
]
},
"locked": {
"lastModified": 1729391507,
"narHash": "sha256-as0I9xieJUHf7kiK2a9znDsVZQTFWhM1pLivII43Gi0=",
"lastModified": 1722651535,
"narHash": "sha256-2uRmNwxe3CO5h7PfvqXrRe8OplXaEdwhqOUtaF13rpU=",
"owner": "oxalica",
"repo": "rust-overlay",
"rev": "784981a9feeba406de38c1c9a3decf966d853cca",
"rev": "56d83ca6f3c557647476f3720426a7615c22b860",
"type": "github"
},
"original": {

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@@ -27,15 +27,13 @@
};
rust-bin = rust-overlay.lib.mkRustBin { } pkgs.buildPackages;
toolchain = rust-bin.stable.latest.default.override {
extensions = [ "rust-src" "rust-analyzer" "rust-std" ];
};
toolchain = rust-bin.stable.latest.default;
in f system pkgs toolchain);
in {
apps = forAllSystems (system: pkgs: _: {
default = self.apps.${system}.greg-ng;
greg-ng = let
package = self.packages.${system}.greg-ng-wrapped;
package = self.packages.${system}.greg-ng;
in {
type = "app";
program = lib.getExe package;
@@ -53,21 +51,9 @@
};
});
overlays = {
default = self.overlays.greg-ng;
greg-ng = final: prev: {
inherit (self.packages.${prev.system}) greg-ng;
};
};
packages = forAllSystems (system: pkgs: _: {
default = self.packages.${system}.greg-ng;
greg-ng = pkgs.callPackage ./default.nix { };
greg-ng-wrapped = pkgs.callPackage ./default.nix {
wrapped = true;
};
});
} // {
nixosModules.default = ./module.nix;
};
}

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@@ -1,195 +0,0 @@
{ config, pkgs, lib, ... }:
let
cfg = config.services.greg-ng;
in
{
options.services.greg-ng = {
enable = lib.mkEnableOption "greg-ng, an mpv based media player";
package = lib.mkPackageOption pkgs "greg-ng" { };
mpvPackage = lib.mkPackageOption pkgs "mpv" { };
enableSway = lib.mkEnableOption "sway as the main window manager";
enablePipewire = lib.mkEnableOption "pipewire" // { default = true; };
logLevel = lib.mkOption {
type = lib.types.enum [ "quiet" "error" "warn" "info" "debug" "trace" ];
default = "debug";
description = "Log level.";
apply = level: {
"quiet" = "-q";
"error" = "";
"warn" = "-v";
"info" = "-vv";
"debug" = "-vvv";
"trace" = "-vvvv";
}.${level};
};
# TODO: create some better descriptions
settings = {
host = lib.mkOption {
type = lib.types.str;
default = "localhost";
example = "0.0.0.0";
description = ''
Which host to bind to.
'';
};
port = lib.mkOption {
type = lib.types.port;
default = 8008;
example = 10008;
description = ''
Which port to bind to.
'';
};
mpv-socket-path = lib.mkOption {
type = lib.types.str;
default = "%t/greg-ng-mpv.sock";
description = ''
Path to the mpv socket.
'';
};
mpv-executable-path = lib.mkOption {
type = lib.types.str;
default = lib.getExe cfg.mpvPackage;
defaultText = lib.literalExpression ''
lib.getExe config.services.greg-ng.mpvPackage
'';
description = ''
Path to the mpv executable.
'';
};
mpv-config-file = lib.mkOption {
type = with lib.types; nullOr str;
default = null;
description = ''
Path to the mpv config file.
'';
};
auto-start-mpv = lib.mkOption {
type = lib.types.bool;
default = true;
description = ''
Whether to automatically start mpv.
'';
};
force-auto-start = lib.mkOption {
type = lib.types.bool;
default = true;
description = ''
Whether to force auto starting mpv.
'';
};
};
};
config = lib.mkMerge [
(lib.mkIf cfg.enable {
systemd.user.services.greg-ng = {
description = "greg-ng, an mpv based media player";
wantedBy = [ "graphical-session.target" ];
partOf = [ "graphical-session.target" ];
serviceConfig = {
Type = "notify";
ExecStart = let
args = lib.cli.toGNUCommandLineShell { } (cfg.settings // {
systemd = true;
});
in "${lib.getExe cfg.package} ${cfg.logLevel} ${args}";
Restart = "always";
RestartSec = 3;
WatchdogSec = lib.mkDefault 15;
TimeoutStartSec = lib.mkDefault 30;
RestrictAddressFamilies = [ "AF_UNIX" "AF_INET" "AF_INET6" ];
AmbientCapabilities = [ "" ];
CapabilityBoundingSet = [ "" ];
DeviceAllow = [ "" ];
LockPersonality = true;
# Might work, but wouldn't bet on it with embedded lua in mpv
MemoryDenyWriteExecute = false;
NoNewPrivileges = true;
# MPV and mesa tries to talk directly to the GPU.
PrivateDevices = false;
PrivateMounts = true;
PrivateTmp = true;
PrivateUsers = true;
ProcSubset = "pid";
ProtectClock = true;
ProtectControlGroups = true;
# MPV wants ~/.cache
ProtectHome = false;
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectProc = "invisible";
ProtectSystem = "full";
RemoveIPC = true;
UMask = "0077";
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
SystemCallArchitectures = "native";
SystemCallFilter = [
"@system-service"
"~@privileged"
"~@resources"
];
};
};
})
(lib.mkIf (cfg.enable && cfg.enablePipewire) {
services.pipewire = {
enable = true;
alsa.enable = true;
alsa.support32Bit = true;
pulse.enable = true;
};
})
(lib.mkIf (cfg.enable && cfg.enableSway) {
programs.sway = {
enable = true;
wrapperFeatures.gtk = true;
};
xdg.portal = {
enable = true;
wlr.enable = true;
extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
};
users = {
users.greg = {
isNormalUser = true;
group = "greg";
uid = 2000;
description = "loud gym bro";
};
groups.greg.gid = 2000;
};
services.greetd = {
enable = true;
settings = rec {
initial_session = {
command = "${pkgs.sway}/bin/sway";
user = "greg";
};
default_session = initial_session;
};
};
})
];
}

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@@ -1,14 +1,11 @@
use std::ops::Deref;
use aide::{axum::IntoApiResponse, operation::OperationIo, OperationOutput};
use axum_jsonschema::JsonSchemaRejection;
use axum::{
async_trait, extract::{rejection::{FailedToDeserializeQueryString, QueryRejection}, FromRequest, FromRequestParts, State}, http::{request::Parts, StatusCode}, response::{IntoResponse, Response}, routing::{delete, get, post}, Json, Router
extract::{Query, State},
http::StatusCode,
response::{IntoResponse, Response},
routing::{delete, get, post},
Json, Router,
};
use mpvipc_async::Mpv;
use schemars::JsonSchema;
use serde::{de::DeserializeOwned, Serialize};
use serde_json::{json, Value};
use super::base;
@@ -34,13 +31,6 @@ pub fn rest_api_routes(mpv: Mpv) -> Router {
.with_state(mpv)
}
// #[derive(FromRequest, OperationIo)]
// #[from_request(via(axum_jsonschema::Json), rejection(RestResponse))]
// #[aide(
// input_with = "axum_jsonschema::Json<T>",
// output_with = "axum_jsonschema::Json<T>",
// json_schema
// )]
pub struct RestResponse(anyhow::Result<Value>);
impl From<anyhow::Result<Value>> for RestResponse {
@@ -68,103 +58,13 @@ impl IntoResponse for RestResponse {
}
}
impl aide::OperationOutput for RestResponse {
type Inner = anyhow::Result<Value>;
}
/// -------
// impl<T> aide::OperationInput for Query<T> {}
// #[derive(FromRequest, OperationIo)]
// #[from_request(via(axum_jsonschema::Json), rejection(RestResponse))]
// #[aide(
// input_with = "axum_jsonschema::Json<T>",
// output_with = "axum_jsonschema::Json<T>",
// json_schema
// )]
// pub struct Json<T>(pub T);
// impl<T> IntoResponse for Json<T>
// where
// T: Serialize,
// {
// fn into_response(self) -> axum::response::Response {
// axum::Json(self.0).into_response()
// }
// }
#[derive(OperationIo)]
#[aide(json_schema)]
pub struct Query<T>(pub T);
#[async_trait]
impl <T, S> FromRequestParts<S> for Query<T>
where
T: JsonSchema + DeserializeOwned,
S: Send + Sync,
{
type Rejection = QueryRejection;
async fn from_request_parts(parts: &mut Parts, _state: &S) -> Result<Self, Self::Rejection> {
let axum::extract::Query(query) = axum::extract::Query::try_from_uri(&parts.uri)?;
Ok(Query(query))
}
}
impl<T> Deref for Query<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
&self.0
}
}
pub fn rest_api_route_docs(mpv: Mpv) -> Router {
use aide::axum::ApiRouter;
use aide::axum::routing::{delete, get, post};
let mut api = aide::openapi::OpenApi::default();
let x = ApiRouter::new()
// .api_route("/load", get(loadfile))
.api_route("/play", get(play_get))
.finish_api(&mut api);
// .with_state(mpv);
todo!()
}
// ----------
pub fn rest_api_routes(mpv: Mpv) -> Router {
Router::new()
.route("/load", post(loadfile))
.route("/play", get(play_get))
.route("/play", post(play_set))
.route("/volume", get(volume_get))
.route("/volume", post(volume_set))
.route("/time", get(time_get))
.route("/time", post(time_set))
.route("/playlist", get(playlist_get))
.route("/playlist/next", post(playlist_next))
.route("/playlist/previous", post(playlist_previous))
.route("/playlist/goto", post(playlist_goto))
.route("/playlist", delete(playlist_remove_or_clear))
.route("/playlist/move", post(playlist_move))
.route("/playlist/shuffle", post(shuffle))
.route("/playlist/loop", get(playlist_get_looping))
.route("/playlist/loop", post(playlist_set_looping))
.with_state(mpv)
}
// -------------------//
// Boilerplate galore //
// -------------------//
// TODO: These could possibly be generated with a proc macro
#[derive(serde::Deserialize, JsonSchema)]
#[derive(serde::Deserialize)]
struct LoadFileArgs {
path: String,
}
@@ -173,11 +73,11 @@ async fn loadfile(State(mpv): State<Mpv>, Query(query): Query<LoadFileArgs>) ->
base::loadfile(mpv, &query.path).await.into()
}
async fn play_get(State(mpv): State<Mpv>) -> impl IntoApiResponse {
RestResponse::from(base::play_get(mpv).await)
async fn play_get(State(mpv): State<Mpv>) -> RestResponse {
base::play_get(mpv).await.into()
}
#[derive(serde::Deserialize, JsonSchema)]
#[derive(serde::Deserialize)]
struct PlaySetArgs {
play: String,
}
@@ -191,7 +91,7 @@ async fn volume_get(State(mpv): State<Mpv>) -> RestResponse {
base::volume_get(mpv).await.into()
}
#[derive(serde::Deserialize, JsonSchema)]
#[derive(serde::Deserialize)]
struct VolumeSetArgs {
volume: f64,
}
@@ -204,7 +104,7 @@ async fn time_get(State(mpv): State<Mpv>) -> RestResponse {
base::time_get(mpv).await.into()
}
#[derive(serde::Deserialize, JsonSchema)]
#[derive(serde::Deserialize)]
struct TimeSetArgs {
pos: Option<f64>,
percent: Option<f64>,
@@ -226,7 +126,7 @@ async fn playlist_previous(State(mpv): State<Mpv>) -> RestResponse {
base::playlist_previous(mpv).await.into()
}
#[derive(serde::Deserialize, JsonSchema)]
#[derive(serde::Deserialize)]
struct PlaylistGotoArgs {
index: usize,
}
@@ -238,7 +138,7 @@ async fn playlist_goto(
base::playlist_goto(mpv, query.index).await.into()
}
#[derive(serde::Deserialize, JsonSchema)]
#[derive(serde::Deserialize)]
struct PlaylistRemoveOrClearArgs {
index: Option<usize>,
}
@@ -253,7 +153,7 @@ async fn playlist_remove_or_clear(
}
}
#[derive(serde::Deserialize, JsonSchema)]
#[derive(serde::Deserialize)]
struct PlaylistMoveArgs {
index1: usize,
index2: usize,
@@ -276,7 +176,7 @@ async fn playlist_get_looping(State(mpv): State<Mpv>) -> RestResponse {
base::playlist_get_looping(mpv).await.into()
}
#[derive(serde::Deserialize, JsonSchema)]
#[derive(serde::Deserialize)]
struct PlaylistSetLoopingArgs {
r#loop: bool,
}

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@@ -1,16 +1,15 @@
use anyhow::Context;
use axum::{Router, Server};
use clap::Parser;
use clap_verbosity_flag::Verbosity;
use mpv_setup::{connect_to_mpv, create_mpv_config_file, show_grzegorz_image};
use mpvipc_async::Mpv;
use std::net::{IpAddr, SocketAddr};
use systemd_journal_logger::JournalLog;
use tempfile::NamedTempFile;
use std::{
fs::create_dir_all,
net::{IpAddr, SocketAddr},
path::Path,
};
use tokio::process::{Child, Command};
mod api;
mod mpv_setup;
// mod mpv_broker;
#[derive(Parser)]
struct Args {
@@ -20,21 +19,12 @@ struct Args {
#[clap(short, long, default_value = "8008")]
port: u16,
#[command(flatten)]
verbose: Verbosity,
#[clap(long)]
systemd: bool,
#[clap(long, value_name = "PATH", default_value = "/run/mpv/mpv.sock")]
mpv_socket_path: String,
#[clap(long, value_name = "PATH")]
mpv_executable_path: Option<String>,
#[clap(long, value_name = "PATH")]
mpv_config_file: Option<String>,
#[clap(long, default_value = "true")]
auto_start_mpv: bool,
@@ -42,16 +32,90 @@ struct Args {
force_auto_start: bool,
}
struct MpvConnectionArgs<'a> {
struct MpvConnectionArgs {
socket_path: String,
executable_path: Option<String>,
config_file: &'a NamedTempFile,
auto_start: bool,
force_auto_start: bool,
}
/// Helper function to resolve a hostname to an IP address.
/// Why is this not in the standard library? >:(
async fn connect_to_mpv(args: &MpvConnectionArgs) -> anyhow::Result<(Mpv, Option<Child>)> {
log::debug!("Connecting to mpv");
debug_assert!(
!args.force_auto_start || args.auto_start,
"force_auto_start requires auto_start"
);
let socket_path = Path::new(&args.socket_path);
if !socket_path.exists() {
log::debug!("Mpv socket not found at {}", &args.socket_path);
if !args.auto_start {
panic!("Mpv socket not found at {}", &args.socket_path);
}
log::debug!("Ensuring parent dir of mpv socket exists");
let parent_dir = Path::new(&args.socket_path)
.parent()
.context("Failed to get parent dir of mpv socket")?;
if !parent_dir.is_dir() {
create_dir_all(parent_dir).context("Failed to create parent dir of mpv socket")?;
}
} else {
log::debug!("Existing mpv socket found at {}", &args.socket_path);
if args.force_auto_start {
log::debug!("Removing mpv socket");
std::fs::remove_file(&args.socket_path)?;
}
}
let process_handle = if args.auto_start {
log::info!("Starting mpv with socket at {}", &args.socket_path);
// TODO: try to fetch mpv from PATH
Some(
Command::new(args.executable_path.as_deref().unwrap_or("mpv"))
.arg(format!("--input-ipc-server={}", &args.socket_path))
.arg("--idle")
.arg("--force-window")
.arg("--fullscreen")
// .arg("--no-terminal")
.arg("--load-unsafe-playlists")
.arg("--keep-open") // Keep last frame of video on end of video
.spawn()
.context("Failed to start mpv")?,
)
} else {
None
};
// Wait for mpv to create the socket
if tokio::time::timeout(tokio::time::Duration::from_millis(500), async {
while !&socket_path.exists() {
log::debug!("Waiting for mpv socket at {}", &args.socket_path);
tokio::time::sleep(tokio::time::Duration::from_millis(10)).await;
}
})
.await
.is_err()
{
return Err(anyhow::anyhow!(
"Failed to connect to mpv socket: {}",
&args.socket_path
));
}
Ok((
Mpv::connect(&args.socket_path).await.context(format!(
"Failed to connect to mpv socket: {}",
&args.socket_path
))?,
process_handle,
))
}
async fn resolve(host: &str) -> anyhow::Result<IpAddr> {
let addr = format!("{}:0", host);
let addresses = tokio::net::lookup_host(addr).await?;
@@ -62,139 +126,44 @@ async fn resolve(host: &str) -> anyhow::Result<IpAddr> {
.ok_or_else(|| anyhow::anyhow!("Failed to resolve address"))
}
/// Helper function that spawns a tokio thread that
/// continuously sends a ping to systemd watchdog, if enabled.
async fn setup_systemd_watchdog_thread() -> anyhow::Result<()> {
let mut watchdog_microsecs: u64 = 0;
if sd_notify::watchdog_enabled(true, &mut watchdog_microsecs) {
watchdog_microsecs = watchdog_microsecs.div_ceil(2);
tokio::spawn(async move {
log::debug!(
"Starting systemd watchdog thread with {} millisecond interval",
watchdog_microsecs.div_ceil(1000)
);
loop {
tokio::time::sleep(tokio::time::Duration::from_micros(watchdog_microsecs)).await;
if let Err(err) = sd_notify::notify(false, &[sd_notify::NotifyState::Watchdog]) {
log::warn!("Failed to notify systemd watchdog: {}", err);
} else {
log::trace!("Ping sent to systemd watchdog");
}
}
});
} else {
log::info!("Watchdog not enabled, skipping");
}
Ok(())
}
async fn shutdown(mpv: Mpv, proc: Option<tokio::process::Child>) {
log::info!("Shutting down");
sd_notify::notify(false, &[sd_notify::NotifyState::Stopping])
.unwrap_or_else(|e| log::warn!("Failed to notify systemd that the service is stopping: {}", e));
mpv.disconnect()
.await
.unwrap_or_else(|e| log::warn!("Failed to disconnect from mpv: {}", e));
if let Some(mut proc) = proc {
proc.kill()
.await
.unwrap_or_else(|e| log::warn!("Failed to kill mpv process: {}", e));
}
}
#[tokio::main]
async fn main() -> anyhow::Result<()> {
env_logger::init();
let args = Args::parse();
let systemd_mode = args.systemd && sd_notify::booted().unwrap_or(false);
if systemd_mode {
JournalLog::new()
.context("Failed to initialize journald logging")?
.install()
.context("Failed to install journald logger")?;
log::set_max_level(args.verbose.log_level_filter());
log::debug!("Running with systemd integration");
setup_systemd_watchdog_thread().await?;
} else {
env_logger::Builder::new()
.filter_level(args.verbose.log_level_filter())
.init();
log::info!("Running without systemd integration");
}
let mpv_config_file = create_mpv_config_file(args.mpv_config_file)?;
let (mpv, proc) = connect_to_mpv(&MpvConnectionArgs {
socket_path: args.mpv_socket_path,
executable_path: args.mpv_executable_path,
config_file: &mpv_config_file,
auto_start: args.auto_start_mpv,
force_auto_start: args.force_auto_start,
})
.await
.context("Failed to connect to mpv")?;
.await?;
if let Err(e) = show_grzegorz_image(mpv.clone()).await {
log::warn!("Could not show Grzegorz image: {}", e);
}
let addr = match resolve(&args.host)
.await
.context(format!("Failed to resolve address: {}", &args.host))
{
Ok(addr) => addr,
Err(e) => {
log::error!("{}", e);
shutdown(mpv, proc).await;
return Err(e);
}
};
let socket_addr = SocketAddr::new(addr, args.port);
log::info!("Starting API on {}", socket_addr);
let addr = SocketAddr::new(resolve(&args.host).await?, args.port);
log::info!("Starting API on {}", addr);
let app = Router::new().nest("/api", api::rest_api_routes(mpv.clone()));
let server = match Server::try_bind(&socket_addr.clone())
.context(format!("Failed to bind API server to '{}'", &socket_addr))
{
Ok(server) => server,
Err(e) => {
log::error!("{}", e);
shutdown(mpv, proc).await;
return Err(e);
}
};
if systemd_mode {
match sd_notify::notify(false, &[sd_notify::NotifyState::Ready])
.context("Failed to notify systemd that the service is ready")
{
Ok(_) => log::trace!("Notified systemd that the service is ready"),
Err(e) => {
log::error!("{}", e);
shutdown(mpv, proc).await;
return Err(e);
}
}
}
if let Some(mut proc) = proc {
tokio::select! {
exit_status = proc.wait() => {
log::warn!("mpv process exited with status: {}", exit_status?);
shutdown(mpv, Some(proc)).await;
mpv.disconnect().await?;
}
_ = tokio::signal::ctrl_c() => {
log::info!("Received Ctrl-C, exiting");
shutdown(mpv, Some(proc)).await;
mpv.disconnect().await?;
proc.kill().await?;
}
result = server.serve(app.into_make_service()) => {
result = async {
match Server::try_bind(&addr.clone()).context("Failed to bind server") {
Ok(server) => server.serve(app.into_make_service()).await.context("Failed to serve app"),
Err(err) => Err(err),
}
} => {
log::info!("API server exited");
shutdown(mpv, Some(proc)).await;
mpv.disconnect().await?;
proc.kill().await?;
result?;
}
}
@@ -202,17 +171,14 @@ async fn main() -> anyhow::Result<()> {
tokio::select! {
_ = tokio::signal::ctrl_c() => {
log::info!("Received Ctrl-C, exiting");
shutdown(mpv.clone(), None).await;
mpv.disconnect().await?;
}
result = server.serve(app.into_make_service()) => {
log::info!("API server exited");
shutdown(mpv.clone(), None).await;
result?;
_ = Server::bind(&addr.clone()).serve(app.into_make_service()) => {
log::info!("API server exited");
mpv.disconnect().await?;
}
}
}
std::mem::drop(mpv_config_file);
Ok(())
}

154
src/mpv_broker.rs Normal file
View File

@@ -0,0 +1,154 @@
use std::{fs::create_dir_all, path::Path};
use anyhow::Context;
use mpvipc_async::{Mpv, MpvCommand, Event as MpvEvent};
use tokio::{process::{Child, Command}, sync::{broadcast::{Receiver as BroadcastReceiver, Sender as BroadcastSender}, mpsc::{Receiver as MpscReceiver, Sender as MpscSender}}};
#[derive(Debug)]
pub struct MpvBroker {
mpv: Mpv,
command_channel: MpscReceiver<MpvCommand>,
event_listeners: BroadcastSender<MpvEvent>,
}
impl MpvBroker {
pub fn new(
mpv: Mpv,
command_channel: MpscReceiver<MpvCommand>,
event_listeners: BroadcastSender<MpvEvent>,
) -> Self {
Self {
mpv,
command_channel,
event_listeners,
}
}
pub async fn run(&mut self) -> anyhow::Result<()> {
loop {
tokio::select! {
Some(command) = self.command_channel.recv() => {
self.mpv.run_command(command)?;
}
Ok(event) = async { self.mpv.event_listen() } => {
self.event_listeners.send(event)?;
}
}
}
}
}
pub struct MpvConnectionArgs {
pub socket_path: String,
pub executable_path: Option<String>,
pub auto_start: bool,
pub force_auto_start: bool,
}
pub async fn connect_to_mpv(args: &MpvConnectionArgs) -> anyhow::Result<(Mpv, Option<Child>)> {
log::debug!("Connecting to mpv");
debug_assert!(
!args.force_auto_start || args.auto_start,
"force_auto_start requires auto_start"
);
let socket_path = Path::new(&args.socket_path);
if !socket_path.exists() {
log::debug!("Mpv socket not found at {}", &args.socket_path);
if !args.auto_start {
panic!("Mpv socket not found at {}", &args.socket_path);
}
log::debug!("Ensuring parent dir of mpv socket exists");
let parent_dir = Path::new(&args.socket_path)
.parent()
.context("Failed to get parent dir of mpv socket")?;
if !parent_dir.is_dir() {
create_dir_all(parent_dir).context("Failed to create parent dir of mpv socket")?;
}
} else {
log::debug!("Existing mpv socket found at {}", &args.socket_path);
if args.force_auto_start {
log::debug!("Removing mpv socket");
std::fs::remove_file(&args.socket_path)?;
}
}
let process_handle = if args.auto_start {
log::info!("Starting mpv with socket at {}", &args.socket_path);
// TODO: try to fetch mpv from PATH
Some(
Command::new(args.executable_path.as_deref().unwrap_or("mpv"))
.arg(format!("--input-ipc-server={}", &args.socket_path))
.arg("--idle")
.arg("--force-window")
// .arg("--fullscreen")
// .arg("--no-terminal")
// .arg("--load-unsafe-playlists")
.arg("--keep-open") // Keep last frame of video on end of video
.arg("--really-quiet")
.spawn()
.context("Failed to start mpv")?,
)
} else {
None
};
// Wait for mpv to create the socket
if tokio::time::timeout(tokio::time::Duration::from_millis(500), async {
while !&socket_path.exists() {
log::debug!("Waiting for mpv socket at {}", &args.socket_path);
tokio::time::sleep(tokio::time::Duration::from_millis(10)).await;
}
})
.await
.is_err()
{
return Err(anyhow::anyhow!(
"Failed to connect to mpv socket: {}",
&args.socket_path
));
}
Ok((
Mpv::connect(&args.socket_path).context(format!(
"Failed to connect to mpv socket: {}",
&args.socket_path
))?,
process_handle,
))
}
#[cfg(test)]
mod tests {
use super::*;
use mpvipc_async::MpvCommand;
use tokio::sync::{broadcast, mpsc};
#[tokio::test]
async fn test_run() -> anyhow::Result<()> {
let (command_tx, command_rx) = mpsc::channel(1);
let (event_tx, _) = broadcast::channel(1);
let (mpv, _) = connect_to_mpv(&MpvConnectionArgs {
socket_path: "/tmp/mpv-test.sock".to_string(),
executable_path: None,
auto_start: true,
force_auto_start: true,
}).await?;
let mut broker = MpvBroker::new(mpv, command_rx, event_tx);
let broker_handle = tokio::spawn(async move {
broker.run().await.unwrap();
});
let _ = command_tx.send(MpvCommand::PlaylistClear).await;
let _ = broker_handle.await.unwrap();
Ok(())
}
}

View File

@@ -1,135 +0,0 @@
use std::{fs::create_dir_all, io::Write, path::Path};
use anyhow::Context;
use mpvipc_async::{Mpv, MpvExt};
use tempfile::NamedTempFile;
use tokio::process::{Child, Command};
use crate::MpvConnectionArgs;
const DEFAULT_MPV_CONFIG_CONTENT: &str = include_str!("../assets/default-mpv.conf");
const THE_MAN_PNG: &[u8] = include_bytes!("../assets/the_man.png");
pub fn create_mpv_config_file(args_config_file: Option<String>) -> anyhow::Result<NamedTempFile> {
let file_content = if let Some(path) = args_config_file {
if !Path::new(&path).exists() {
anyhow::bail!("Mpv config file not found at {}", &path);
}
std::fs::read_to_string(&path).context("Failed to read mpv config file")?
} else {
DEFAULT_MPV_CONFIG_CONTENT.to_string()
};
let tmpfile = tempfile::Builder::new()
.prefix("mpv-")
.rand_bytes(8)
.suffix(".conf")
.tempfile()?;
tmpfile.reopen()?.write_all(file_content.as_bytes())?;
Ok(tmpfile)
}
pub async fn connect_to_mpv<'a>(
args: &MpvConnectionArgs<'a>,
) -> anyhow::Result<(Mpv, Option<Child>)> {
log::debug!("Connecting to mpv");
debug_assert!(
!args.force_auto_start || args.auto_start,
"force_auto_start requires auto_start"
);
let socket_path = Path::new(&args.socket_path);
if !socket_path.exists() {
log::debug!("Mpv socket not found at {}", &args.socket_path);
if !args.auto_start {
panic!("Mpv socket not found at {}", &args.socket_path);
}
log::debug!("Ensuring parent dir of mpv socket exists");
let parent_dir = Path::new(&args.socket_path)
.parent()
.context("Failed to get parent dir of mpv socket")?;
if !parent_dir.is_dir() {
create_dir_all(parent_dir).context("Failed to create parent dir of mpv socket")?;
}
} else {
log::debug!("Existing mpv socket found at {}", &args.socket_path);
if args.force_auto_start {
log::debug!("Removing mpv socket");
std::fs::remove_file(&args.socket_path)?;
}
}
let process_handle = if args.auto_start {
log::info!("Starting mpv with socket at {}", &args.socket_path);
// TODO: try to fetch mpv from PATH
Some(
Command::new(args.executable_path.as_deref().unwrap_or("mpv"))
.arg(format!("--input-ipc-server={}", &args.socket_path))
.arg("--idle")
.arg("--force-window")
.arg("--fullscreen")
.arg("--no-config")
.arg(format!(
"--include={}",
&args.config_file.path().to_string_lossy()
))
// .arg("--no-terminal")
.arg("--load-unsafe-playlists")
.arg("--keep-open") // Keep last frame of video on end of video
.spawn()
.context("Failed to start mpv")?,
)
} else {
None
};
// Wait for mpv to create the socket
if tokio::time::timeout(tokio::time::Duration::from_millis(500), async {
while !&socket_path.exists() {
log::debug!("Waiting for mpv socket at {}", &args.socket_path);
tokio::time::sleep(tokio::time::Duration::from_millis(10)).await;
}
})
.await
.is_err()
{
return Err(anyhow::anyhow!(
"Failed to connect to mpv socket: {}",
&args.socket_path
));
}
Ok((
Mpv::connect(&args.socket_path).await.context(format!(
"Failed to connect to mpv socket: {}",
&args.socket_path
))?,
process_handle,
))
}
pub async fn show_grzegorz_image(mpv: Mpv) -> anyhow::Result<()> {
let path = std::env::temp_dir().join("the_man.png");
std::fs::write(path.as_path(), THE_MAN_PNG)?;
mpv.playlist_clear().await?;
mpv.playlist_add(
path.to_string_lossy().as_ref(),
mpvipc_async::PlaylistAddTypeOptions::File,
mpvipc_async::PlaylistAddOptions::Append,
)
.await?;
mpv.next().await?;
Ok(())
}