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Remove custom WebSocket code (#4001)

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* Remove custom WebSocket code

Remove our custom WebSocket code and only use the Rocket code.
Removed all options in regards to WebSockets
Added a new option `WEBSOCKET_DISABLED` which defaults too `false`.
This can be used to disable WebSockets if you really do not want to use it.

* Addressed remarks given and some updates

- Addressed comments given during review
- Updated crates, including Rocket to the latest merged v0.5 changes
- Removed an extra header which should not be sent for websocket connections

* Updated suggestions and crates

- Addressed the suggestions
- Updated Rocket to latest rc4
  Also made the needed code changes
- Updated all other crates
  Pinned `openssl` and `openssl-sys`

---------

Co-authored-by: Daniel García <dani-garcia@users.noreply.github.com>
This commit is contained in:
Mathijs van Veluw 2024-03-17 19:52:55 +01:00 committed by GitHub
parent a1fbd6d729
commit 3427217686
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GPG key ID: B5690EEEBB952194
8 changed files with 77 additions and 187 deletions
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8
.env.template
View file

@ -84,12 +84,8 @@
### WebSocket ###
#################
## Enables websocket notifications
# WEBSOCKET_ENABLED=false
## Controls the WebSocket server address and port
# WEBSOCKET_ADDRESS=0.0.0.0
# WEBSOCKET_PORT=3012
## Enable websocket notifications
# ENABLE_WEBSOCKET=true
##########################
### Push notifications ###

1
Cargo.lock generated
View file

@ -3784,7 +3784,6 @@ dependencies = [
"syslog",
"time",
"tokio",
"tokio-tungstenite",
"totp-lite",
"tracing",
"url",

1
Cargo.toml
View file

@ -60,7 +60,6 @@ rocket = { version = "0.5.0", features = ["tls", "json"], default-features = fal
rocket_ws = { version ="0.1.0" }
# WebSockets libraries
tokio-tungstenite = "0.20.1"
rmpv = "1.0.1" # MessagePack library
# Concurrent HashMap used for WebSocket messaging and favicons

2
src/api/mod.rs
View file

@ -23,7 +23,7 @@ pub use crate::api::{
icons::routes as icons_routes,
identity::routes as identity_routes,
notifications::routes as notifications_routes,
notifications::{start_notification_server, AnonymousNotify, Notify, UpdateType, WS_ANONYMOUS_SUBSCRIPTIONS},
notifications::{AnonymousNotify, Notify, UpdateType, WS_ANONYMOUS_SUBSCRIPTIONS, WS_USERS},
push::{
push_cipher_update, push_folder_update, push_logout, push_send_update, push_user_update, register_push_device,
unregister_push_device,

228
src/api/notifications.rs
View file

@ -1,23 +1,11 @@
use std::{
net::{IpAddr, SocketAddr},
sync::Arc,
time::Duration,
};
use std::{net::IpAddr, sync::Arc, time::Duration};
use chrono::{NaiveDateTime, Utc};
use rmpv::Value;
use rocket::{
futures::{SinkExt, StreamExt},
Route,
};
use tokio::{
net::{TcpListener, TcpStream},
sync::mpsc::Sender,
};
use tokio_tungstenite::{
accept_hdr_async,
tungstenite::{handshake, Message},
};
use rocket::{futures::StreamExt, Route};
use tokio::sync::mpsc::Sender;
use rocket_ws::{Message, WebSocket};
use crate::{
auth::{ClientIp, WsAccessTokenHeader},
@ -30,7 +18,7 @@ use crate::{
use once_cell::sync::Lazy;
static WS_USERS: Lazy<Arc<WebSocketUsers>> = Lazy::new(|| {
pub static WS_USERS: Lazy<Arc<WebSocketUsers>> = Lazy::new(|| {
Arc::new(WebSocketUsers {
map: Arc::new(dashmap::DashMap::new()),
})
@ -47,8 +35,15 @@ use super::{
push_send_update, push_user_update,
};
static NOTIFICATIONS_DISABLED: Lazy<bool> = Lazy::new(|| !CONFIG.enable_websocket() && !CONFIG.push_enabled());
pub fn routes() -> Vec<Route> {
routes![websockets_hub, anonymous_websockets_hub]
if CONFIG.enable_websocket() {
routes![websockets_hub, anonymous_websockets_hub]
} else {
info!("WebSocket are disabled, realtime sync functionality will not work!");
routes![]
}
}
#[derive(FromForm, Debug)]
@ -108,7 +103,7 @@ impl Drop for WSAnonymousEntryMapGuard {
#[get("/hub?<data..>")]
fn websockets_hub<'r>(
ws: rocket_ws::WebSocket,
ws: WebSocket,
data: WsAccessToken,
ip: ClientIp,
header_token: WsAccessTokenHeader,
@ -192,11 +187,7 @@ fn websockets_hub<'r>(
}
#[get("/anonymous-hub?<token..>")]
fn anonymous_websockets_hub<'r>(
ws: rocket_ws::WebSocket,
token: String,
ip: ClientIp,
) -> Result<rocket_ws::Stream!['r], Error> {
fn anonymous_websockets_hub<'r>(ws: WebSocket, token: String, ip: ClientIp) -> Result<rocket_ws::Stream!['r], Error> {
let addr = ip.ip;
info!("Accepting Anonymous Rocket WS connection from {addr}");
@ -349,13 +340,19 @@ impl WebSocketUsers {
// NOTE: The last modified date needs to be updated before calling these methods
pub async fn send_user_update(&self, ut: UpdateType, user: &User) {
// Skip any processing if both WebSockets and Push are not active
if *NOTIFICATIONS_DISABLED {
return;
}
let data = create_update(
vec![("UserId".into(), user.uuid.clone().into()), ("Date".into(), serialize_date(user.updated_at))],
ut,
None,
);
self.send_update(&user.uuid, &data).await;
if CONFIG.enable_websocket() {
self.send_update(&user.uuid, &data).await;
}
if CONFIG.push_enabled() {
push_user_update(ut, user);
@ -363,13 +360,19 @@ impl WebSocketUsers {
}
pub async fn send_logout(&self, user: &User, acting_device_uuid: Option<String>) {
// Skip any processing if both WebSockets and Push are not active
if *NOTIFICATIONS_DISABLED {
return;
}
let data = create_update(
vec![("UserId".into(), user.uuid.clone().into()), ("Date".into(), serialize_date(user.updated_at))],
UpdateType::LogOut,
acting_device_uuid.clone(),
);
self.send_update(&user.uuid, &data).await;
if CONFIG.enable_websocket() {
self.send_update(&user.uuid, &data).await;
}
if CONFIG.push_enabled() {
push_logout(user, acting_device_uuid);
@ -383,6 +386,10 @@ impl WebSocketUsers {
acting_device_uuid: &String,
conn: &mut DbConn,
) {
// Skip any processing if both WebSockets and Push are not active
if *NOTIFICATIONS_DISABLED {
return;
}
let data = create_update(
vec![
("Id".into(), folder.uuid.clone().into()),
@ -393,7 +400,9 @@ impl WebSocketUsers {
Some(acting_device_uuid.into()),
);
self.send_update(&folder.user_uuid, &data).await;
if CONFIG.enable_websocket() {
self.send_update(&folder.user_uuid, &data).await;
}
if CONFIG.push_enabled() {
push_folder_update(ut, folder, acting_device_uuid, conn).await;
@ -409,6 +418,10 @@ impl WebSocketUsers {
collection_uuids: Option<Vec<String>>,
conn: &mut DbConn,
) {
// Skip any processing if both WebSockets and Push are not active
if *NOTIFICATIONS_DISABLED {
return;
}
let org_uuid = convert_option(cipher.organization_uuid.clone());
// Depending if there are collections provided or not, we need to have different values for the following variables.
// The user_uuid should be `null`, and the revision date should be set to now, else the clients won't sync the collection change.
@ -434,8 +447,10 @@ impl WebSocketUsers {
Some(acting_device_uuid.into()),
);
for uuid in user_uuids {
self.send_update(uuid, &data).await;
if CONFIG.enable_websocket() {
for uuid in user_uuids {
self.send_update(uuid, &data).await;
}
}
if CONFIG.push_enabled() && user_uuids.len() == 1 {
@ -451,6 +466,10 @@ impl WebSocketUsers {
acting_device_uuid: &String,
conn: &mut DbConn,
) {
// Skip any processing if both WebSockets and Push are not active
if *NOTIFICATIONS_DISABLED {
return;
}
let user_uuid = convert_option(send.user_uuid.clone());
let data = create_update(
@ -463,8 +482,10 @@ impl WebSocketUsers {
None,
);
for uuid in user_uuids {
self.send_update(uuid, &data).await;
if CONFIG.enable_websocket() {
for uuid in user_uuids {
self.send_update(uuid, &data).await;
}
}
if CONFIG.push_enabled() && user_uuids.len() == 1 {
push_send_update(ut, send, acting_device_uuid, conn).await;
@ -478,12 +499,18 @@ impl WebSocketUsers {
acting_device_uuid: &String,
conn: &mut DbConn,
) {
// Skip any processing if both WebSockets and Push are not active
if *NOTIFICATIONS_DISABLED {
return;
}
let data = create_update(
vec![("Id".into(), auth_request_uuid.clone().into()), ("UserId".into(), user_uuid.clone().into())],
UpdateType::AuthRequest,
Some(acting_device_uuid.to_string()),
);
self.send_update(user_uuid, &data).await;
if CONFIG.enable_websocket() {
self.send_update(user_uuid, &data).await;
}
if CONFIG.push_enabled() {
push_auth_request(user_uuid.to_string(), auth_request_uuid.to_string(), conn).await;
@ -497,12 +524,18 @@ impl WebSocketUsers {
approving_device_uuid: String,
conn: &mut DbConn,
) {
// Skip any processing if both WebSockets and Push are not active
if *NOTIFICATIONS_DISABLED {
return;
}
let data = create_update(
vec![("Id".into(), auth_response_uuid.to_owned().into()), ("UserId".into(), user_uuid.clone().into())],
UpdateType::AuthRequestResponse,
approving_device_uuid.clone().into(),
);
self.send_update(auth_response_uuid, &data).await;
if CONFIG.enable_websocket() {
self.send_update(auth_response_uuid, &data).await;
}
if CONFIG.push_enabled() {
push_auth_response(user_uuid.to_string(), auth_response_uuid.to_string(), approving_device_uuid, conn)
@ -526,6 +559,9 @@ impl AnonymousWebSocketSubscriptions {
}
pub async fn send_auth_response(&self, user_uuid: &String, auth_response_uuid: &str) {
if !CONFIG.enable_websocket() {
return;
}
let data = create_anonymous_update(
vec![("Id".into(), auth_response_uuid.to_owned().into()), ("UserId".into(), user_uuid.clone().into())],
UpdateType::AuthRequestResponse,
@ -620,127 +656,3 @@ pub enum UpdateType {
pub type Notify<'a> = &'a rocket::State<Arc<WebSocketUsers>>;
pub type AnonymousNotify<'a> = &'a rocket::State<Arc<AnonymousWebSocketSubscriptions>>;
pub fn start_notification_server() -> Arc<WebSocketUsers> {
let users = Arc::clone(&WS_USERS);
if CONFIG.websocket_enabled() {
let users2 = Arc::<WebSocketUsers>::clone(&users);
tokio::spawn(async move {
let addr = (CONFIG.websocket_address(), CONFIG.websocket_port());
info!("Starting WebSockets server on {}:{}", addr.0, addr.1);
let listener = TcpListener::bind(addr).await.expect("Can't listen on websocket port");
let (shutdown_tx, mut shutdown_rx) = tokio::sync::oneshot::channel::<()>();
CONFIG.set_ws_shutdown_handle(shutdown_tx);
loop {
tokio::select! {
Ok((stream, addr)) = listener.accept() => {
tokio::spawn(handle_connection(stream, Arc::<WebSocketUsers>::clone(&users2), addr));
}
_ = &mut shutdown_rx => {
break;
}
}
}
info!("Shutting down WebSockets server!")
});
}
users
}
async fn handle_connection(stream: TcpStream, users: Arc<WebSocketUsers>, addr: SocketAddr) -> Result<(), Error> {
let mut user_uuid: Option<String> = None;
info!("Accepting WS connection from {addr}");
// Accept connection, do initial handshake, validate auth token and get the user ID
use handshake::server::{Request, Response};
let mut stream = accept_hdr_async(stream, |req: &Request, res: Response| {
if let Some(token) = get_request_token(req) {
if let Ok(claims) = crate::auth::decode_login(&token) {
user_uuid = Some(claims.sub);
return Ok(res);
}
}
Err(Response::builder().status(401).body(None).unwrap())
})
.await?;
let user_uuid = user_uuid.expect("User UUID should be set after the handshake");
let (mut rx, guard) = {
// Add a channel to send messages to this client to the map
let entry_uuid = uuid::Uuid::new_v4();
let (tx, rx) = tokio::sync::mpsc::channel::<Message>(100);
users.map.entry(user_uuid.clone()).or_default().push((entry_uuid, tx));
// Once the guard goes out of scope, the connection will have been closed and the entry will be deleted from the map
(rx, WSEntryMapGuard::new(users, user_uuid, entry_uuid, addr.ip()))
};
let _guard = guard;
let mut interval = tokio::time::interval(Duration::from_secs(15));
loop {
tokio::select! {
res = stream.next() => {
match res {
Some(Ok(message)) => {
match message {
// Respond to any pings
Message::Ping(ping) => stream.send(Message::Pong(ping)).await?,
Message::Pong(_) => {/* Ignored */},
// We should receive an initial message with the protocol and version, and we will reply to it
Message::Text(ref message) => {
let msg = message.strip_suffix(RECORD_SEPARATOR as char).unwrap_or(message);
if serde_json::from_str(msg).ok() == Some(INITIAL_MESSAGE) {
stream.send(Message::binary(INITIAL_RESPONSE)).await?;
continue;
}
}
// Just echo anything else the client sends
_ => stream.send(message).await?,
}
}
_ => break,
}
}
res = rx.recv() => {
match res {
Some(res) => stream.send(res).await?,
None => break,
}
}
_ = interval.tick() => stream.send(Message::Ping(create_ping())).await?
}
}
Ok(())
}
fn get_request_token(req: &handshake::server::Request) -> Option<String> {
const ACCESS_TOKEN_KEY: &str = "access_token=";
if let Some(Ok(auth)) = req.headers().get("Authorization").map(|a| a.to_str()) {
if let Some(token_part) = auth.strip_prefix("Bearer ") {
return Some(token_part.to_owned());
}
}
if let Some(params) = req.uri().query() {
let params_iter = params.split('&').take(1);
for val in params_iter {
if let Some(stripped) = val.strip_prefix(ACCESS_TOKEN_KEY) {
return Some(stripped.to_owned());
}
}
}
None
}

18
src/config.rs
View file

@ -39,7 +39,6 @@ macro_rules! make_config {
struct Inner {
rocket_shutdown_handle: Option<rocket::Shutdown>,
ws_shutdown_handle: Option<tokio::sync::oneshot::Sender<()>>,
templates: Handlebars<'static>,
config: ConfigItems,
@ -361,7 +360,7 @@ make_config! {
/// Sends folder
sends_folder: String, false, auto, |c| format!("{}/{}", c.data_folder, "sends");
/// Temp folder |> Used for storing temporary file uploads
tmp_folder: String, false, auto, |c| format!("{}/{}", c.data_folder, "tmp");
tmp_folder: String, false, auto, |c| format!("{}/{}", c.data_folder, "tmp");
/// Templates folder
templates_folder: String, false, auto, |c| format!("{}/{}", c.data_folder, "templates");
/// Session JWT key
@ -371,11 +370,7 @@ make_config! {
},
ws {
/// Enable websocket notifications
websocket_enabled: bool, false, def, false;
/// Websocket address
websocket_address: String, false, def, "0.0.0.0".to_string();
/// Websocket port
websocket_port: u16, false, def, 3012;
enable_websocket: bool, false, def, true;
},
push {
/// Enable push notifications
@ -1071,7 +1066,6 @@ impl Config {
Ok(Config {
inner: RwLock::new(Inner {
rocket_shutdown_handle: None,
ws_shutdown_handle: None,
templates: load_templates(&config.templates_folder),
config,
_env,
@ -1237,16 +1231,8 @@ impl Config {
self.inner.write().unwrap().rocket_shutdown_handle = Some(handle);
}
pub fn set_ws_shutdown_handle(&self, handle: tokio::sync::oneshot::Sender<()>) {
self.inner.write().unwrap().ws_shutdown_handle = Some(handle);
}
pub fn shutdown(&self) {
if let Ok(mut c) = self.inner.write() {
if let Some(handle) = c.ws_shutdown_handle.take() {
handle.send(()).ok();
}
if let Some(handle) = c.rocket_shutdown_handle.take() {
handle.notify();
}

2
src/error.rs
View file

@ -52,7 +52,6 @@ use rocket::error::Error as RocketErr;
use serde_json::{Error as SerdeErr, Value};
use std::io::Error as IoErr;
use std::time::SystemTimeError as TimeErr;
use tokio_tungstenite::tungstenite::Error as TungstError;
use webauthn_rs::error::WebauthnError as WebauthnErr;
use yubico::yubicoerror::YubicoError as YubiErr;
@ -91,7 +90,6 @@ make_error! {
DieselCon(DieselConErr): _has_source, _api_error,
Webauthn(WebauthnErr): _has_source, _api_error,
WebSocket(TungstError): _has_source, _api_error,
}
impl std::fmt::Debug for Error {

4
src/main.rs
View file

@ -52,7 +52,7 @@ mod ratelimit;
mod util;
use crate::api::purge_auth_requests;
use crate::api::WS_ANONYMOUS_SUBSCRIPTIONS;
use crate::api::{WS_ANONYMOUS_SUBSCRIPTIONS, WS_USERS};
pub use config::CONFIG;
pub use error::{Error, MapResult};
use rocket::data::{Limits, ToByteUnit};
@ -497,7 +497,7 @@ async fn launch_rocket(pool: db::DbPool, extra_debug: bool) -> Result<(), Error>
.register([basepath, "/api"].concat(), api::core_catchers())
.register([basepath, "/admin"].concat(), api::admin_catchers())
.manage(pool)
.manage(api::start_notification_server())
.manage(Arc::clone(&WS_USERS))
.manage(Arc::clone(&WS_ANONYMOUS_SUBSCRIPTIONS))
.attach(util::AppHeaders())
.attach(util::Cors())