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|
use std::time::{Duration, Instant};
use azalea_auth::certs::{Certificates, FetchCertificatesError};
use azalea_protocol::packets::game::{
ServerboundChatSessionUpdate,
s_chat_session_update::{ProfilePublicKeyData, RemoteChatSessionData},
};
use bevy_app::prelude::*;
use bevy_ecs::prelude::*;
use bevy_tasks::{IoTaskPool, Task, futures_lite::future};
use chrono::Utc;
use tracing::{debug, error};
use uuid::Uuid;
use super::{client_chat, login::IsAuthenticated, packet::game::SendGamePacketEvent};
use crate::{InGameState, account::Account};
pub struct ChatSigningPlugin;
impl Plugin for ChatSigningPlugin {
fn build(&self, app: &mut App) {
app.add_systems(
Update,
(
request_certs_if_needed,
poll_request_certs_task,
handle_queued_certs_to_send,
)
.chain()
.before(client_chat::handler::handle_send_chat_kind_event),
);
}
}
#[derive(Component)]
pub struct RequestCertsTask(pub Task<Result<Certificates, FetchCertificatesError>>);
/// A component that makes us have to wait until the given time to refresh the
/// certs.
///
/// This is used to avoid spamming requests if requesting certs fails. Usually,
/// we just check [`Certificates::expires_at`].
#[derive(Component, Debug)]
pub struct OnlyRefreshCertsAfter {
pub refresh_at: Instant,
}
/// A component that's present when this client has sent its certificates to the
/// server.
///
/// This should be removed if you want to re-send the certs.
///
/// If you want to get the client's actual certificates, you can get that from
/// the `certs` in the [`Account`] component.
#[derive(Component)]
pub struct ChatSigningSession {
pub session_id: Uuid,
pub messages_sent: u32,
}
pub fn poll_request_certs_task(
mut commands: Commands,
mut query: Query<(Entity, &mut RequestCertsTask, &Account)>,
) {
for (entity, mut auth_task, account) in query.iter_mut() {
if let Some(poll_res) = future::block_on(future::poll_once(&mut auth_task.0)) {
debug!("Finished requesting certs");
commands.entity(entity).remove::<RequestCertsTask>();
match poll_res {
Ok(certs) => {
commands.entity(entity).insert(QueuedCertsToSend {
certs: certs.clone(),
});
account.set_certs(certs);
}
Err(err) => {
error!("Error requesting certs: {err:?}. Retrying in an hour.");
commands.entity(entity).insert(OnlyRefreshCertsAfter {
refresh_at: Instant::now() + Duration::from_secs(60 * 60),
});
}
}
}
}
}
#[allow(clippy::type_complexity)]
pub fn request_certs_if_needed(
mut commands: Commands,
mut query: Query<
(
Entity,
&Account,
Option<&OnlyRefreshCertsAfter>,
Option<&ChatSigningSession>,
),
(
Without<RequestCertsTask>,
With<InGameState>,
With<IsAuthenticated>,
),
>,
) {
for (entity, account, only_refresh_certs_after, chat_signing_session) in query.iter_mut() {
if let Some(only_refresh_certs_after) = only_refresh_certs_after
&& only_refresh_certs_after.refresh_at > Instant::now()
{
continue;
}
let certs = account.certs();
let should_refresh = if let Some(certs) = certs {
// certs were already requested and we're waiting for them to refresh
// but maybe they weren't sent yet, in which case we still want to send the
// certs
if chat_signing_session.is_none() {
true
} else {
Utc::now() > certs.expires_at
}
} else {
true
};
if should_refresh && let Some(access_token) = account.access_token() && let Some(backend) = account.certs_backend() {
let task_pool = IoTaskPool::get();
let backend = backend.to_owned();
debug!("Started task to fetch certs");
let task = task_pool.spawn(async_compat::Compat::new(async move {
azalea_auth::certs::fetch_certificates_with_backend_url(&access_token, &backend).await
}));
commands
.entity(entity)
.insert(RequestCertsTask(task))
.remove::<OnlyRefreshCertsAfter>();
}
}
}
/// A component that's present on players that should send their chat signing
/// certificates as soon as possible.
///
/// This is removed when the certificates get sent.
#[derive(Component)]
pub struct QueuedCertsToSend {
pub certs: Certificates,
}
pub fn handle_queued_certs_to_send(
mut commands: Commands,
query: Query<(Entity, &QueuedCertsToSend), With<IsAuthenticated>>,
) {
for (entity, queued_certs) in &query {
let certs = &queued_certs.certs;
let session_id = Uuid::new_v4();
let chat_session = RemoteChatSessionData {
session_id,
profile_public_key: ProfilePublicKeyData {
expires_at: certs.expires_at.timestamp_millis() as u64,
key: certs.public_key_der.clone(),
key_signature: certs.signature_v2.clone(),
},
};
debug!("Sending chat signing certs to server");
commands.trigger(SendGamePacketEvent::new(
entity,
ServerboundChatSessionUpdate { chat_session },
));
commands
.entity(entity)
.remove::<QueuedCertsToSend>()
.insert(ChatSigningSession {
session_id,
messages_sent: 0,
});
}
}
|
