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WebSockets via Rocket's Upgrade connection

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This PR implements a (not yet fully released) new feature of Rocket which allows WebSockets/Upgrade connections.
No more need for multiple ports to be opened for Vaultwarden.
No explicit need for a reverse proxy to get WebSockets to work (Although I still suggest to use a reverse proxy).

- Using a git revision for Rocket, since `rocket_ws` is not yet released.
- Updated other crates as well.
- Added a connection guard to clear the WS connection from the Users list.

Fixes #685
Fixes #2917
Fixes #1424
pull/3404/head
BlackDex 2 years ago
parent 3bd4e42fb0
commit 3d11f4cd16
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GPG Key ID: 58C80A2AA6C765E1
3 changed files with 344 additions and 192 deletions
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@ -79,9 +79,9 @@ dependencies = [
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dependencies = [ dependencies = [
"log", "log",
"ring", "ring",
"rustls-webpki",
"sct", "sct",
"webpki",
] ]
[[package]] [[package]]
@ -2578,6 +2585,16 @@ dependencies = [
"base64 0.21.0", "base64 0.21.0",
] ]
[[package]]
name = "rustls-webpki"
version = "0.100.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d6207cd5ed3d8dca7816f8f3725513a34609c0c765bf652b8c3cb4cfd87db46b"
dependencies = [
"ring",
"untrusted",
]
[[package]] [[package]]
name = "rustversion" name = "rustversion"
version = "1.0.12" version = "1.0.12"
@ -2839,9 +2856,9 @@ checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
[[package]] [[package]]
name = "spin" name = "spin"
version = "0.9.7" version = "0.9.8"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c0959fd6f767df20b231736396e4f602171e00d95205676286e79d4a4eb67bef" checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
[[package]] [[package]]
name = "stable-pattern" name = "stable-pattern"
@ -3055,13 +3072,12 @@ dependencies = [
[[package]] [[package]]
name = "tokio-rustls" name = "tokio-rustls"
version = "0.23.4" version = "0.24.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c43ee83903113e03984cb9e5cebe6c04a5116269e900e3ddba8f068a62adda59" checksum = "e0d409377ff5b1e3ca6437aa86c1eb7d40c134bfec254e44c830defa92669db5"
dependencies = [ dependencies = [
"rustls", "rustls",
"tokio", "tokio",
"webpki",
] ]
[[package]] [[package]]
@ -3363,9 +3379,9 @@ checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
[[package]] [[package]]
name = "uuid" name = "uuid"
version = "1.3.0" version = "1.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1674845326ee10d37ca60470760d4288a6f80f304007d92e5c53bab78c9cfd79" checksum = "5b55a3fef2a1e3b3a00ce878640918820d3c51081576ac657d23af9fc7928fdb"
dependencies = [ dependencies = [
"getrandom", "getrandom",
] ]
@ -3413,7 +3429,6 @@ dependencies = [
"job_scheduler_ng", "job_scheduler_ng",
"jsonwebtoken", "jsonwebtoken",
"lettre", "lettre",
"libmimalloc-sys",
"libsqlite3-sys", "libsqlite3-sys",
"log", "log",
"mimalloc", "mimalloc",
@ -3430,6 +3445,7 @@ dependencies = [
"ring", "ring",
"rmpv", "rmpv",
"rocket", "rocket",
"rocket_ws",
"rpassword", "rpassword",
"semver", "semver",
"serde", "serde",
@ -3605,16 +3621,6 @@ dependencies = [
"url", "url",
] ]
[[package]]
name = "webpki"
version = "0.22.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f095d78192e208183081cc07bc5515ef55216397af48b873e5edcd72637fa1bd"
dependencies = [
"ring",
"untrusted",
]
[[package]] [[package]]
name = "which" name = "which"
version = "4.4.0" version = "4.4.0"
@ -3669,16 +3675,16 @@ version = "0.44.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9e745dab35a0c4c77aa3ce42d595e13d2003d6902d6b08c9ef5fc326d08da12b" checksum = "9e745dab35a0c4c77aa3ce42d595e13d2003d6902d6b08c9ef5fc326d08da12b"
dependencies = [ dependencies = [
"windows-targets", "windows-targets 0.42.2",
] ]
[[package]] [[package]]
name = "windows" name = "windows"
version = "0.46.0" version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cdacb41e6a96a052c6cb63a144f24900236121c6f63f4f8219fef5977ecb0c25" checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
dependencies = [ dependencies = [
"windows-targets", "windows-targets 0.48.0",
] ]
[[package]] [[package]]
@ -3687,13 +3693,13 @@ version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7" checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
dependencies = [ dependencies = [
"windows_aarch64_gnullvm", "windows_aarch64_gnullvm 0.42.2",
"windows_aarch64_msvc", "windows_aarch64_msvc 0.42.2",
"windows_i686_gnu", "windows_i686_gnu 0.42.2",
"windows_i686_msvc", "windows_i686_msvc 0.42.2",
"windows_x86_64_gnu", "windows_x86_64_gnu 0.42.2",
"windows_x86_64_gnullvm", "windows_x86_64_gnullvm 0.42.2",
"windows_x86_64_msvc", "windows_x86_64_msvc 0.42.2",
] ]
[[package]] [[package]]
@ -3702,7 +3708,16 @@ version = "0.45.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0" checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
dependencies = [ dependencies = [
"windows-targets", "windows-targets 0.42.2",
]
[[package]]
name = "windows-sys"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
dependencies = [
"windows-targets 0.48.0",
] ]
[[package]] [[package]]
@ -3711,13 +3726,28 @@ version = "0.42.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071" checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
dependencies = [ dependencies = [
"windows_aarch64_gnullvm", "windows_aarch64_gnullvm 0.42.2",
"windows_aarch64_msvc", "windows_aarch64_msvc 0.42.2",
"windows_i686_gnu", "windows_i686_gnu 0.42.2",
"windows_i686_msvc", "windows_i686_msvc 0.42.2",
"windows_x86_64_gnu", "windows_x86_64_gnu 0.42.2",
"windows_x86_64_gnullvm", "windows_x86_64_gnullvm 0.42.2",
"windows_x86_64_msvc", "windows_x86_64_msvc 0.42.2",
]
[[package]]
name = "windows-targets"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5"
dependencies = [
"windows_aarch64_gnullvm 0.48.0",
"windows_aarch64_msvc 0.48.0",
"windows_i686_gnu 0.48.0",
"windows_i686_msvc 0.48.0",
"windows_x86_64_gnu 0.48.0",
"windows_x86_64_gnullvm 0.48.0",
"windows_x86_64_msvc 0.48.0",
] ]
[[package]] [[package]]
@ -3726,42 +3756,84 @@ version = "0.42.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8" checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
[[package]] [[package]]
name = "windows_aarch64_msvc" name = "windows_aarch64_msvc"
version = "0.42.2" version = "0.42.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43" checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
[[package]]
name = "windows_aarch64_msvc"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
[[package]] [[package]]
name = "windows_i686_gnu" name = "windows_i686_gnu"
version = "0.42.2" version = "0.42.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f" checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
[[package]]
name = "windows_i686_gnu"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
[[package]] [[package]]
name = "windows_i686_msvc" name = "windows_i686_msvc"
version = "0.42.2" version = "0.42.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060" checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
[[package]]
name = "windows_i686_msvc"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
[[package]] [[package]]
name = "windows_x86_64_gnu" name = "windows_x86_64_gnu"
version = "0.42.2" version = "0.42.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36" checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
[[package]]
name = "windows_x86_64_gnu"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
[[package]] [[package]]
name = "windows_x86_64_gnullvm" name = "windows_x86_64_gnullvm"
version = "0.42.2" version = "0.42.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3" checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
[[package]] [[package]]
name = "windows_x86_64_msvc" name = "windows_x86_64_msvc"
version = "0.42.2" version = "0.42.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0" checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
[[package]]
name = "windows_x86_64_msvc"
version = "0.48.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
[[package]] [[package]]
name = "winreg" name = "winreg"
version = "0.10.1" version = "0.10.1"

17
Cargo.toml
Unescape View File

@ -56,6 +56,8 @@ num-derive = "0.3.3"
# Web framework # Web framework
rocket = { version = "0.5.0-rc.3", features = ["tls", "json"], default-features = false } rocket = { version = "0.5.0-rc.3", features = ["tls", "json"], default-features = false }
# rocket_ws = { version ="0.1.0-rc.3" }
rocket_ws = { git = 'https://github.com/SergioBenitez/Rocket', rev = "a82508b403420bd941c32ddec3ee3e4875f2b8a5" }
# WebSockets libraries # WebSockets libraries
tokio-tungstenite = "0.18.0" tokio-tungstenite = "0.18.0"
@ -85,11 +87,11 @@ rand = { version = "0.8.5", features = ["small_rng"] }
ring = "0.16.20" ring = "0.16.20"
# UUID generation # UUID generation
uuid = { version = "1.3.0", features = ["v4"] } uuid = { version = "1.3.1", features = ["v4"] }
# Date and time libraries # Date and time libraries
chrono = { version = "0.4.24", features = ["clock", "serde"], default-features = false } chrono = { version = "0.4.24", features = ["clock", "serde"], default-features = false }
chrono-tz = "0.8.1" chrono-tz = "0.8.2"
time = "0.3.20" time = "0.3.20"
# Job scheduler # Job scheduler
@ -114,7 +116,7 @@ webauthn-rs = "0.3.2"
url = "2.3.1" url = "2.3.1"
# Email libraries # Email libraries
lettre = { version = "0.10.3", features = ["smtp-transport", "sendmail-transport", "builder", "serde", "tokio1-native-tls", "hostname", "tracing", "tokio1"], default-features = false } lettre = { version = "0.10.4", features = ["smtp-transport", "sendmail-transport", "builder", "serde", "tokio1-native-tls", "hostname", "tracing", "tokio1"], default-features = false }
percent-encoding = "2.2.0" # URL encoding library used for URL's in the emails percent-encoding = "2.2.0" # URL encoding library used for URL's in the emails
email_address = "0.2.4" email_address = "0.2.4"
@ -138,7 +140,7 @@ cookie = "0.16.2"
cookie_store = "0.19.0" cookie_store = "0.19.0"
# Used by U2F, JWT and PostgreSQL # Used by U2F, JWT and PostgreSQL
openssl = "0.10.48" openssl = "0.10.50"
# CLI argument parsing # CLI argument parsing
pico-args = "0.5.0" pico-args = "0.5.0"
@ -152,8 +154,7 @@ semver = "1.0.17"
# Allow overriding the default memory allocator # Allow overriding the default memory allocator
# Mainly used for the musl builds, since the default musl malloc is very slow # Mainly used for the musl builds, since the default musl malloc is very slow
mimalloc = { version = "=0.1.34", features = ["secure"], default-features = false, optional = true } mimalloc = { version = "0.1.36", features = ["secure"], default-features = false, optional = true }
libmimalloc-sys = "=0.1.30"
which = "4.4.0" which = "4.4.0"
# Argon2 library with support for the PHC format # Argon2 library with support for the PHC format
@ -162,6 +163,10 @@ argon2 = "0.5.0"
# Reading a password from the cli for generating the Argon2id ADMIN_TOKEN # Reading a password from the cli for generating the Argon2id ADMIN_TOKEN
rpassword = "7.2.0" rpassword = "7.2.0"
[patch.crates-io]
rocket = { git = 'https://github.com/SergioBenitez/Rocket', rev = 'a82508b403420bd941c32ddec3ee3e4875f2b8a5' }
# rocket_ws = { git = 'https://github.com/SergioBenitez/Rocket', rev = 'a82508b403420bd941c32ddec3ee3e4875f2b8a5' }
# Strip debuginfo from the release builds # Strip debuginfo from the release builds
# Also enable thin LTO for some optimizations # Also enable thin LTO for some optimizations
[profile.release] [profile.release]

233
src/api/notifications.rs
Unescape View File

@ -1,16 +1,15 @@
use std::{ use std::{
net::SocketAddr, net::{IpAddr, SocketAddr},
sync::{ sync::Arc,
atomic::{AtomicBool, Ordering},
Arc,
},
time::Duration, time::Duration,
}; };
use chrono::NaiveDateTime; use chrono::NaiveDateTime;
use futures::{SinkExt, StreamExt};
use rmpv::Value; use rmpv::Value;
use rocket::Route; use rocket::{
futures::{SinkExt, StreamExt},
Route,
};
use tokio::{ use tokio::{
net::{TcpListener, TcpStream}, net::{TcpListener, TcpStream},
sync::mpsc::Sender, sync::mpsc::Sender,
@ -21,34 +20,127 @@ use tokio_tungstenite::{
}; };
use crate::{ use crate::{
api::EmptyResult, auth::ClientIp,
db::models::{Cipher, Folder, Send, User}, db::models::{Cipher, Folder, Send as DbSend, User},
Error, CONFIG, Error, CONFIG,
}; };
use once_cell::sync::Lazy;
static WS_USERS: Lazy<Arc<WebSocketUsers>> = Lazy::new(|| {
Arc::new(WebSocketUsers {
map: Arc::new(dashmap::DashMap::new()),
})
});
pub fn routes() -> Vec<Route> { pub fn routes() -> Vec<Route> {
routes![websockets_err] routes![websockets_hub]
}
#[derive(FromForm, Debug)]
struct WsAccessToken {
access_token: Option<String>,
} }
#[get("/hub")] struct WSEntryMapGuard {
fn websockets_err() -> EmptyResult { users: Arc<WebSocketUsers>,
static SHOW_WEBSOCKETS_MSG: AtomicBool = AtomicBool::new(true); user_uuid: String,
entry_uuid: uuid::Uuid,
if CONFIG.websocket_enabled() addr: IpAddr,
&& SHOW_WEBSOCKETS_MSG.compare_exchange(true, false, Ordering::Relaxed, Ordering::Relaxed).is_ok() }
{
err!( impl WSEntryMapGuard {
" fn new(users: Arc<WebSocketUsers>, user_uuid: String, entry_uuid: uuid::Uuid, addr: IpAddr) -> Self {
########################################################### Self {
'/notifications/hub' should be proxied to the websocket server or notifications won't work. users,
Go to the Wiki for more info, or disable WebSockets setting WEBSOCKET_ENABLED=false. user_uuid,
###########################################################################################\n" entry_uuid,
) addr,
} else { }
Err(Error::empty())
} }
} }
impl Drop for WSEntryMapGuard {
fn drop(&mut self) {
info!("Closing WS connection from {}", self.addr);
if let Some(mut entry) = self.users.map.get_mut(&self.user_uuid) {
entry.retain(|(uuid, _)| uuid != &self.entry_uuid);
}
}
}
#[get("/hub?<data..>")]
async fn websockets_hub<'r>(
ws: rocket_ws::WebSocket,
data: WsAccessToken,
ip: ClientIp,
) -> Result<rocket_ws::Channel<'r>, Error> {
let addr = ip.ip;
info!("Accepting Rocket WS connection from {addr}");
let Some(token) = data.access_token else { err_code!("Invalid claim", 401) };
let Ok(claims) = crate::auth::decode_login(&token) else { err_code!("Invalid token", 401) };
let (mut rx, guard) = {
let users = Arc::clone(&WS_USERS);
// 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(claims.sub.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, claims.sub, entry_uuid, addr))
};
Ok(ws.channel(move |mut stream| {
Box::pin(async move {
// Make sure the guard is moved into the channel future so it's not dropped earlier
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(())
})
}))
}
// //
// Websockets server // Websockets server
// //
@ -127,8 +219,8 @@ impl WebSocketUsers {
async fn send_update(&self, user_uuid: &str, data: &[u8]) { async fn send_update(&self, user_uuid: &str, data: &[u8]) {
if let Some(user) = self.map.get(user_uuid).map(|v| v.clone()) { if let Some(user) = self.map.get(user_uuid).map(|v| v.clone()) {
for (_, sender) in user.iter() { for (_, sender) in user.iter() {
if sender.send(Message::binary(data)).await.is_err() { if let Err(e) = sender.send(Message::binary(data)).await {
// TODO: Delete from map here too? error!("Error sending WS update {e}");
} }
} }
} }
@ -196,7 +288,7 @@ impl WebSocketUsers {
} }
} }
pub async fn send_send_update(&self, ut: UpdateType, send: &Send, user_uuids: &[String]) { pub async fn send_send_update(&self, ut: UpdateType, send: &DbSend, user_uuids: &[String]) {
let user_uuid = convert_option(send.user_uuid.clone()); let user_uuid = convert_option(send.user_uuid.clone());
let data = create_update( let data = create_update(
@ -280,15 +372,12 @@ pub enum UpdateType {
None = 100, None = 100,
} }
pub type Notify<'a> = &'a rocket::State<WebSocketUsers>; pub type Notify<'a> = &'a rocket::State<Arc<WebSocketUsers>>;
pub fn start_notification_server() -> WebSocketUsers {
let users = WebSocketUsers {
map: Arc::new(dashmap::DashMap::new()),
};
pub fn start_notification_server() -> Arc<WebSocketUsers> {
let users = Arc::clone(&WS_USERS);
if CONFIG.websocket_enabled() { if CONFIG.websocket_enabled() {
let users2 = users.clone(); let users2 = Arc::<WebSocketUsers>::clone(&users);
tokio::spawn(async move { tokio::spawn(async move {
let addr = (CONFIG.websocket_address(), CONFIG.websocket_port()); let addr = (CONFIG.websocket_address(), CONFIG.websocket_port());
info!("Starting WebSockets server on {}:{}", addr.0, addr.1); info!("Starting WebSockets server on {}:{}", addr.0, addr.1);
@ -300,7 +389,7 @@ pub fn start_notification_server() -> WebSocketUsers {
loop { loop {
tokio::select! { tokio::select! {
Ok((stream, addr)) = listener.accept() => { Ok((stream, addr)) = listener.accept() => {
tokio::spawn(handle_connection(stream, users2.clone(), addr)); tokio::spawn(handle_connection(stream, Arc::<WebSocketUsers>::clone(&users2), addr));
} }
_ = &mut shutdown_rx => { _ = &mut shutdown_rx => {
@ -316,7 +405,7 @@ pub fn start_notification_server() -> WebSocketUsers {
users users
} }
async fn handle_connection(stream: TcpStream, users: WebSocketUsers, addr: SocketAddr) -> Result<(), Error> { async fn handle_connection(stream: TcpStream, users: Arc<WebSocketUsers>, addr: SocketAddr) -> Result<(), Error> {
let mut user_uuid: Option<String> = None; let mut user_uuid: Option<String> = None;
info!("Accepting WS connection from {addr}"); info!("Accepting WS connection from {addr}");
@ -336,41 +425,39 @@ async fn handle_connection(stream: TcpStream, users: WebSocketUsers, addr: Socke
let user_uuid = user_uuid.expect("User UUID should be set after the handshake"); let user_uuid = user_uuid.expect("User UUID should be set after the handshake");
// Add a channel to send messages to this client to the map let (mut rx, guard) = {
let entry_uuid = uuid::Uuid::new_v4(); // Add a channel to send messages to this client to the map
let (tx, mut rx) = tokio::sync::mpsc::channel(100); let entry_uuid = uuid::Uuid::new_v4();
users.map.entry(user_uuid.clone()).or_default().push((entry_uuid, tx)); 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)); let mut interval = tokio::time::interval(Duration::from_secs(15));
loop { loop {
tokio::select! { tokio::select! {
res = stream.next() => { res = stream.next() => {
match res { match res {
Some(Ok(message)) => { Some(Ok(message)) => {
// Respond to any pings match message {
if let Message::Ping(ping) = message { // Respond to any pings
if stream.send(Message::Pong(ping)).await.is_err() { Message::Ping(ping) => stream.send(Message::Pong(ping)).await?,
break; Message::Pong(_) => {/* Ignored */},
}
continue; // We should receive an initial message with the protocol and version, and we will reply to it
} else if let Message::Pong(_) = message { Message::Text(ref message) => {
/* Ignored */ let msg = message.strip_suffix(RECORD_SEPARATOR as char).unwrap_or(message);
continue;
} if serde_json::from_str(msg).ok() == Some(INITIAL_MESSAGE) {
stream.send(Message::binary(INITIAL_RESPONSE)).await?;
// We should receive an initial message with the protocol and version, and we will reply to it continue;
if let Message::Text(ref message) = 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?,
// Just echo anything else the client sends
if stream.send(message).await.is_err() {
break;
} }
} }
_ => break, _ => break,
@ -379,27 +466,15 @@ async fn handle_connection(stream: TcpStream, users: WebSocketUsers, addr: Socke
res = rx.recv() => { res = rx.recv() => {
match res { match res {
Some(res) => { Some(res) => stream.send(res).await?,
if stream.send(res).await.is_err() {
break;
}
},
None => break, None => break,
} }
} }
_= interval.tick() => { _ = interval.tick() => stream.send(Message::Ping(create_ping())).await?
if stream.send(Message::Ping(create_ping())).await.is_err() {
break;
}
}
} }
} }
info!("Closing WS connection from {addr}");
// Delete from map
users.map.entry(user_uuid).or_default().retain(|(uuid, _)| uuid != &entry_uuid);
Ok(()) Ok(())
} }

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