omega/src/server/omikron_connection.rs
2026-03-03 22:08:20 +01:00

1151 lines
42 KiB
Rust
Executable file

use crate::{
get_private_key, get_public_key, log, log_cv_in, log_cv_out, log_err, log_in,
server::{omikron_manager, short_link::add_short_link},
sql::{
connection_status::UserStatus,
sql::{self, get_by_user_id, get_by_username, get_iota_by_id, get_omikron_by_id},
user_online_tracker::{self},
},
util::{
crypto_helper::encrypt,
file_util::{load_file_buf, load_file_vec},
logger::PrintType,
},
};
use base64::{Engine as _, engine::general_purpose::STANDARD};
use dashmap::DashMap;
use epsilon_core::{CommunicationType, CommunicationValue, DataTypes, DataValue};
use epsilon_native::{Host, Receiver, Sender};
use quinn::crypto::rustls::QuicServerConfig;
use quinn::{Endpoint, ServerConfig};
use rand::{Rng, distributions::Alphanumeric};
use rustls::{ServerConfig as CryptoConfig, crypto::aws_lc_rs};
use std::{
net::SocketAddr,
sync::Arc,
time::{Duration, Instant},
};
use tokio::{
sync::{Mutex, RwLock},
time::interval,
};
use x448::PublicKey;
// ============================================================================
// Configuration
// ============================================================================
const CLEANUP_INTERVAL: Duration = Duration::from_secs(30);
const MAX_WAITING_AGE: Duration = Duration::from_secs(60);
// ============================================================================
// Error Types
// ============================================================================
#[derive(Debug, thiserror::Error)]
pub enum OmikronError {
#[error("Not connected")]
NotConnected,
#[error("Not authenticated")]
NotAuthenticated,
#[error("Invalid response")]
InvalidResponse,
#[error("Authentication failed")]
AuthenticationFailed,
#[error("SQL error: {0}")]
Sql(String),
#[error("Send error: {0}")]
Send(String),
}
pub type OmikronResult<T> = Result<T, OmikronError>;
// ============================================================================
// Waiting Task System (Preserved from original)
// ============================================================================
pub struct WaitingTask {
pub task: Box<dyn Fn(Arc<OmikronConnection>, CommunicationValue) -> bool + Send + Sync>,
pub inserted_at: Instant,
}
// ============================================================================
// Connection State
// ============================================================================
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
enum AuthState {
Unauthenticated,
Identified { omikron_id: i64 },
Authenticated { omikron_id: i64 },
}
impl AuthState {
fn is_authenticated(&self) -> bool {
match self {
AuthState::Authenticated { omikron_id } => true,
_ => false,
}
}
fn omikron_id(&self) -> Option<i64> {
match self {
AuthState::Identified { omikron_id } | AuthState::Authenticated { omikron_id } => {
Some(*omikron_id)
}
_ => None,
}
}
}
// ============================================================================
// Omikron Connection (Epsilon/QUIC-based)
// ============================================================================
pub struct OmikronConnection {
id: u64,
sender: Mutex<Option<Sender>>,
state: RwLock<AuthState>,
challenge: RwLock<String>,
pub_key: RwLock<Option<Vec<u8>>>,
pub ping: RwLock<i64>,
waiting_tasks: DashMap<u32, WaitingTask>,
cleanup_handle: Mutex<Option<tokio::task::JoinHandle<()>>>,
}
impl OmikronConnection {
// -------------------------------------------------------------------------
// Construction
// -------------------------------------------------------------------------
pub fn new(sender: Sender) -> Arc<Self> {
let conn = Arc::new(Self {
id: rand::random(),
sender: Mutex::new(Some(sender)),
state: RwLock::new(AuthState::Unauthenticated),
challenge: RwLock::new(String::new()),
pub_key: RwLock::new(None),
ping: RwLock::new(-1),
waiting_tasks: DashMap::new(),
cleanup_handle: Mutex::new(None),
});
// Start cleanup task for waiting tasks
let cleanup_conn = conn.clone();
let handle = tokio::spawn(async move {
let mut ticker = interval(CLEANUP_INTERVAL);
loop {
ticker.tick().await;
cleanup_conn
.waiting_tasks
.retain(|_, v| v.inserted_at.elapsed() < MAX_WAITING_AGE);
}
});
// Store handle (would need block_in_place or similar to set this immediately)
// For now, we'll handle this differently in handle()
conn
}
// -------------------------------------------------------------------------
// Main Handler Loop
// -------------------------------------------------------------------------
pub async fn handle(self: Arc<Self>, mut receiver: Receiver) {
log_in!(
self.id as i64,
PrintType::Omega,
"Omikron connection started"
);
// Start cleanup task
let cleanup_conn = self.clone();
let _cleanup_handle = tokio::spawn(async move {
let mut ticker = interval(CLEANUP_INTERVAL);
loop {
ticker.tick().await;
cleanup_conn
.waiting_tasks
.retain(|_, v| v.inserted_at.elapsed() < MAX_WAITING_AGE);
}
});
while let Ok(cv) = receiver.receive().await {
if let Err(e) = self.clone().process_message(cv).await {
log_err!(0, PrintType::Omega, "Error processing message: {}", e);
// Don't break on error unless critical - match original WebSocket behavior
if matches!(e, OmikronError::NotConnected) {
break;
}
}
}
// Connection closed
self.clone().cleanup().await;
log_in!(
self.id as i64,
PrintType::Omega,
"Omikron connection closed"
);
}
// -------------------------------------------------------------------------
// Message Processing
// -------------------------------------------------------------------------
async fn process_message(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
// Log incoming
log_cv_in!(PrintType::Omikron, &cv);
let msg_id = cv.get_id();
// Check waiting tasks first (response to previous request)
if let Some((_, task)) = self.waiting_tasks.remove(&msg_id) {
let _ = (task.task)(self.clone(), cv);
return Ok(());
}
// Handle ping regardless of auth state
if cv.is_type(CommunicationType::ping) {
return self.handle_ping(cv).await;
}
// Route based on authentication state
match *self.state.read().await {
AuthState::Unauthenticated => self.clone().handle_unauthenticated(cv).await,
AuthState::Identified { .. } => self.clone().handle_identified(cv).await,
AuthState::Authenticated { omikron_id } => {
self.clone().handle_authenticated(cv, omikron_id).await
}
}
}
// -------------------------------------------------------------------------
// Authentication Handlers
// -------------------------------------------------------------------------
async fn handle_unauthenticated(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
if !cv.is_type(CommunicationType::identification) {
self.send_error_response(cv.get_id(), CommunicationType::error_not_authenticated)
.await;
return Err(OmikronError::NotAuthenticated);
}
// Extract omikron ID
let omikron_id = cv
.get_data(DataTypes::omikron)
.as_number()
.ok_or(OmikronError::InvalidResponse)?;
// Lookup omikron in database
let (public_key, _) = get_omikron_by_id(omikron_id)
.await
.map_err(|e| OmikronError::Sql(e.to_string()))?;
let pub_key_bytes = STANDARD
.decode(&public_key)
.map_err(|_| OmikronError::AuthenticationFailed)?;
let omikron_pub_key =
PublicKey::from_bytes(&pub_key_bytes).ok_or(OmikronError::AuthenticationFailed)?;
// Generate challenge
let challenge: String = rand::thread_rng()
.sample_iter(&Alphanumeric)
.take(32)
.map(char::from)
.collect();
// Store state
*self.challenge.write().await = challenge.clone();
*self.pub_key.write().await = Some(pub_key_bytes);
*self.state.write().await = AuthState::Identified { omikron_id };
// Encrypt challenge
let encrypted = encrypt(get_private_key(), omikron_pub_key, &challenge)
.map_err(|_| OmikronError::AuthenticationFailed)?;
// Send challenge response
let response = CommunicationValue::new(CommunicationType::challenge)
.with_id(cv.get_id())
.add_data(
DataTypes::public_key,
DataValue::Str(STANDARD.encode(get_public_key().as_bytes())),
)
.add_data(DataTypes::challenge, DataValue::Str(encrypted));
self.send(&response).await
}
async fn handle_identified(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
if !cv.is_type(CommunicationType::challenge_response) {
self.send_error_response(cv.get_id(), CommunicationType::error_not_authenticated)
.await;
return Err(OmikronError::NotAuthenticated);
}
let client_response = cv
.get_data(DataTypes::challenge)
.as_str()
.ok_or(OmikronError::InvalidResponse)?;
let expected_challenge = self.challenge.read().await.clone();
if client_response == expected_challenge {
let omikron_id = self.state.read().await.omikron_id().unwrap_or(0);
*self.state.write().await = AuthState::Authenticated { omikron_id };
omikron_manager::add_omikron(self.clone()).await;
let response = CommunicationValue::new(CommunicationType::identification_response)
.with_id(cv.get_id())
.add_data(DataTypes::accepted, DataValue::Bool(true));
self.clone().send(&response).await?;
log_in!(omikron_id, PrintType::Omega, "Omikron authenticated");
Ok(())
} else {
self.send_error_response(cv.get_id(), CommunicationType::error_invalid_challenge)
.await;
Err(OmikronError::AuthenticationFailed)
}
}
// -------------------------------------------------------------------------
// Authenticated Message Handlers
// -------------------------------------------------------------------------
async fn handle_authenticated(
self: Arc<Self>,
cv: CommunicationValue,
omikron_id: i64,
) -> OmikronResult<()> {
match cv.get_type() {
// Link shortening
CommunicationType::shorten_link => self.handle_shorten_link(cv).await,
// Online status tracking
CommunicationType::user_connected => {
self.handle_user_connected(cv, omikron_id).await;
Ok(())
}
CommunicationType::user_disconnected => {
self.handle_user_disconnected(cv, omikron_id).await;
Ok(())
}
CommunicationType::iota_connected => {
self.handle_iota_connected(cv, omikron_id).await;
Ok(())
}
CommunicationType::iota_disconnected => {
self.handle_iota_disconnected(cv, omikron_id).await;
Ok(())
}
CommunicationType::sync_client_iota_status => {
self.handle_sync_status(cv, omikron_id).await;
Ok(())
}
CommunicationType::get_user_data => self.handle_get_user_data(cv).await,
CommunicationType::get_iota_data => self.handle_get_iota_data(cv).await,
CommunicationType::get_register => self.handle_get_register(cv).await,
CommunicationType::complete_register_iota => {
self.handle_complete_register_iota(cv).await
}
CommunicationType::complete_register_user => {
self.handle_complete_register_user(cv).await
}
CommunicationType::change_user_data => self.handle_change_user_data(cv).await,
CommunicationType::change_iota_data => self.handle_change_iota_data(cv).await,
CommunicationType::delete_user => self.handle_delete_user(cv).await,
CommunicationType::delete_iota => self.handle_delete_iota(cv).await,
CommunicationType::get_notifications => self.handle_get_notifications(cv).await,
CommunicationType::read_notification => self.handle_read_notification(cv).await,
CommunicationType::push_notification => self.handle_push_notification(cv).await,
_ => {
log_err!(
0,
PrintType::Omega,
"Unknown message type: {:?}",
cv.get_type()
);
Ok(())
}
}
}
// -------------------------------------------------------------------------
// Specific Handlers (ported from original WebSocket implementation)
// -------------------------------------------------------------------------
async fn handle_shorten_link(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
let link = cv
.get_data(DataTypes::link)
.as_str()
.ok_or(OmikronError::InvalidResponse)?;
let short = add_short_link(link)
.await
.map_err(|_| OmikronError::Sql("Shortend link Error".to_string()))?;
let response = CommunicationValue::new(CommunicationType::shorten_link)
.with_id(cv.get_id())
.add_data(DataTypes::link, DataValue::Str(short));
self.send(&response).await
}
async fn handle_user_connected(self: Arc<Self>, cv: CommunicationValue, omikron_id: i64) {
log_in!(PrintType::Omega, "User connected");
if let Some(user_id) = cv.get_data(DataTypes::user_id).as_number() {
user_online_tracker::track_user_status(
user_id as i64,
UserStatus::user_online,
omikron_id,
);
}
}
async fn handle_user_disconnected(self: Arc<Self>, cv: CommunicationValue, _omikron_id: i64) {
log_in!(PrintType::Omega, "User disconnected");
if let Some(user_id) = cv.get_data(DataTypes::user_id).as_number() {
if let Some(status) = user_online_tracker::get_user_status(user_id as i64) {
user_online_tracker::track_user_status(
user_id as i64,
UserStatus::user_offline,
status.omikron_id,
);
}
}
}
async fn handle_iota_connected(self: Arc<Self>, cv: CommunicationValue, omikron_id: i64) {
log_in!(PrintType::Omega, "IOTA connected");
if let Some(iota_id) = cv.get_data(DataTypes::iota_id).as_number() {
let iota_id = iota_id as i64;
user_online_tracker::track_iota_connection(iota_id, omikron_id, true);
let mut user_ids = Vec::new();
if let Ok(users) = sql::get_users_by_iota_id(iota_id).await {
for (user_id, _, _, _, _, _, _, _, _, _, _, _) in users {
user_ids.push(DataValue::Number(user_id));
user_online_tracker::track_user_status(
user_id,
UserStatus::user_offline,
omikron_id,
);
}
} else {
log_in!(PrintType::General, "SQL error loading users for IOTA");
}
let response = CommunicationValue::new(CommunicationType::iota_user_data)
.with_id(cv.get_id())
.add_data(DataTypes::user_ids, DataValue::Array(user_ids));
let _ = self.send(&response).await;
} else {
log_in!(PrintType::General, "No IOTA ID found");
}
}
async fn handle_iota_disconnected(self: Arc<Self>, cv: CommunicationValue, omikron_id: i64) {
log_in!(PrintType::Omega, "IOTA disconnected");
if let Some(iota_id) = cv.get_data(DataTypes::iota_id).as_number() {
let iota_id = iota_id as i64;
let iota_offline = user_online_tracker::untrack_iota_connection(iota_id, omikron_id);
if iota_offline {
if let Ok(users) = sql::get_users_by_iota_id(iota_id).await {
let user_ids: Vec<i64> = users.iter().map(|u| u.0).collect();
user_online_tracker::untrack_many_users(&user_ids);
}
}
}
}
async fn handle_sync_status(self: Arc<Self>, cv: CommunicationValue, omikron_id: i64) {
if let DataValue::Array(user_ids) = cv.get_data(DataTypes::user_ids) {
for user_id_val in user_ids {
if let DataValue::Number(user_id) = user_id_val {
user_online_tracker::track_user_status(
*user_id,
UserStatus::user_online,
omikron_id,
);
}
}
}
if let DataValue::Array(iota_ids) = cv.get_data(DataTypes::iota_ids) {
for iota_id_val in iota_ids {
if let DataValue::Number(iota_id) = iota_id_val {
user_online_tracker::track_iota_connection(*iota_id, omikron_id, true);
}
}
}
}
async fn handle_get_user_data(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
// Try by user_id first
if let Some(user_id) = cv.get_data(DataTypes::user_id).as_number() {
if let Ok(user_data) = get_by_user_id(user_id as i64).await {
let response = self
.clone()
.build_user_data_response(cv.get_id(), user_data)
.await;
return self.send(&response).await;
}
}
// Try by username
if let Some(username) = cv.get_data(DataTypes::username).as_str() {
if let Ok(user_data) = get_by_username(username).await {
let response = self
.clone()
.build_user_data_response(cv.get_id(), user_data)
.await;
return self.send(&response).await;
}
}
// Not found
let response =
CommunicationValue::new(CommunicationType::error_not_found).with_id(cv.get_id());
self.send(&response).await
}
async fn build_user_data_response(
self: Arc<Self>,
msg_id: u32,
user: (
i64,
i64,
String,
Option<String>,
Option<String>,
Option<String>,
Option<Vec<u8>>,
i32,
i64,
String,
String,
String,
),
) -> CommunicationValue {
let (
id,
iota_id,
username,
display,
status,
about,
avatar,
sub_level,
sub_end,
public_key,
_,
_,
) = user;
let mut response = CommunicationValue::new(CommunicationType::get_user_data)
.with_id(msg_id)
.add_data(DataTypes::username, DataValue::Str(username.clone()))
.add_data(DataTypes::public_key, DataValue::Str(public_key))
.add_data(DataTypes::user_id, DataValue::Number(id))
.add_data(DataTypes::iota_id, DataValue::Number(iota_id))
.add_data(DataTypes::sub_level, DataValue::Number(sub_level as i64))
.add_data(DataTypes::sub_end, DataValue::Number(sub_end));
// Display name (fallback to username)
let display_name = display.filter(|d| !d.is_empty()).unwrap_or(username);
response = response.add_data(DataTypes::display, DataValue::Str(display_name));
// Optional fields
if let Some(s) = status.filter(|s| !s.is_empty()) {
response = response.add_data(DataTypes::status, DataValue::Str(s));
}
if let Some(a) = about.filter(|a| !a.is_empty()) {
response = response.add_data(DataTypes::about, DataValue::Str(a));
}
if let Some(av) = avatar {
response = response.add_data(DataTypes::avatar, DataValue::Str(STANDARD.encode(av)));
}
// Online status
let user_status = user_online_tracker::get_user_status(id);
let iota_connections =
user_online_tracker::get_iota_omikron_connections(iota_id).unwrap_or_default();
if let Some(us) = user_status {
response = response.add_data(
DataTypes::online_status,
DataValue::Str(us.connection_type.to_string()),
);
response = response.add_data(DataTypes::omikron_id, DataValue::Number(us.omikron_id));
} else {
response = response.add_data(
DataTypes::online_status,
DataValue::Str(UserStatus::iota_offline.to_string()),
);
}
response = response.add_data(
DataTypes::omikron_connections,
DataValue::Array(
iota_connections
.into_iter()
.map(DataValue::Number)
.collect(),
),
);
response
}
async fn handle_get_iota_data(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
// Try by iota_id
if let Some(iota_id) = cv.get_data(DataTypes::iota_id).as_number() {
if let Ok((iota_id, public_key)) = get_iota_by_id(iota_id as i64).await {
let response = self
.clone()
.build_iota_data_response(cv.get_id(), iota_id, public_key, None, None)
.await;
return self.send(&response).await;
}
}
// Try by user_id
if let Some(user_id) = cv.get_data(DataTypes::user_id).as_number() {
if let Ok((_, iota_id, _, _, _, _, _, _, _, _, _, _)) =
get_by_user_id(user_id as i64).await
{
if let Ok((iota_id, public_key)) = get_iota_by_id(iota_id).await {
let response = self
.clone()
.build_iota_data_response(
cv.get_id(),
iota_id,
public_key,
Some(user_id as i64),
None,
)
.await;
return self.send(&response).await;
}
}
}
// Try by username
if let Some(username) = cv.get_data(DataTypes::username).as_str() {
if let Ok((user_id, iota_id, _, _, _, _, _, _, _, _, _, _)) =
get_by_username(username).await
{
if let Ok((iota_id, public_key)) = get_iota_by_id(iota_id).await {
let response = self
.clone()
.build_iota_data_response(
cv.get_id(),
iota_id,
public_key,
Some(user_id),
Some(username.to_string()),
)
.await;
return self.send(&response).await;
}
}
}
let response =
CommunicationValue::new(CommunicationType::error_not_found).with_id(cv.get_id());
self.send(&response).await
}
async fn build_iota_data_response(
self: Arc<Self>,
msg_id: u32,
iota_id: i64,
public_key: String,
user_id: Option<i64>,
username: Option<String>,
) -> CommunicationValue {
let mut response = CommunicationValue::new(CommunicationType::get_iota_data)
.with_id(msg_id)
.add_data(DataTypes::public_key, DataValue::Str(public_key))
.add_data(DataTypes::iota_id, DataValue::Number(iota_id));
if let Some(uid) = user_id {
response = response.add_data(DataTypes::user_id, DataValue::Number(uid));
}
if let Some(uname) = username {
response = response.add_data(DataTypes::username, DataValue::Str(uname));
}
let iota_connections =
user_online_tracker::get_iota_omikron_connections(iota_id).unwrap_or_default();
response.add_data(
DataTypes::omikron_connections,
DataValue::Array(
iota_connections
.into_iter()
.map(DataValue::Number)
.collect(),
),
)
}
async fn handle_get_register(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
let register_id = sql::get_register_id().await;
let response = CommunicationValue::new(CommunicationType::get_register)
.with_id(cv.get_id())
.add_data(DataTypes::user_id, DataValue::Number(register_id as i64));
self.send(&response).await
}
async fn handle_complete_register_iota(
self: Arc<Self>,
cv: CommunicationValue,
) -> OmikronResult<()> {
let iota_id_opt = cv
.get_data(DataTypes::iota_id)
.as_number()
.map(|n| n as i64);
if let Some(public_key) = cv.get_data(DataTypes::public_key).as_str() {
if let Some(iota_id) = iota_id_opt {
// Register existing IOTA
match sql::register_complete_iota(iota_id, public_key.to_string()).await {
Ok(_) => {
let response = CommunicationValue::new(CommunicationType::success)
.with_id(cv.get_id());
self.send(&response).await
}
Err(e) => {
let response = CommunicationValue::new(CommunicationType::error)
.with_id(cv.get_id())
.add_data(DataTypes::error_type, DataValue::Str(e.to_string()));
self.send(&response).await
}
}
} else {
// Create new IOTA
match sql::create_new_iota(public_key.to_string()).await {
Ok(new_iota_id) => {
let response =
CommunicationValue::new(CommunicationType::complete_register_iota)
.with_id(cv.get_id())
.add_data(DataTypes::iota_id, DataValue::Number(new_iota_id));
self.send(&response).await
}
Err(e) => {
let response = CommunicationValue::new(CommunicationType::error)
.with_id(cv.get_id())
.add_data(DataTypes::error_type, DataValue::Str(e.to_string()));
self.send(&response).await
}
}
}
} else {
self.send_error_response(cv.get_id(), CommunicationType::error_invalid_data)
.await
}
}
async fn handle_complete_register_user(
self: Arc<Self>,
cv: CommunicationValue,
) -> OmikronResult<()> {
let user_id = cv
.get_data(DataTypes::user_id)
.as_number()
.map(|n| n as i64);
let username = cv
.get_data(DataTypes::username)
.as_str()
.map(|s| s.to_string());
let public_key = cv
.get_data(DataTypes::public_key)
.as_str()
.map(|s| s.to_string());
let iota_id = cv
.get_data(DataTypes::iota_id)
.as_number()
.map(|n| n as i64);
let reset_token = cv
.get_data(DataTypes::reset_token)
.as_str()
.map(|s| s.to_string());
if let (Some(uid), Some(uname), Some(pk), Some(iid), Some(rt)) =
(user_id, username, public_key, iota_id, reset_token)
{
match sql::register_complete_user(uid, uname, pk, iid, rt).await {
Ok(_) => {
let response =
CommunicationValue::new(CommunicationType::success).with_id(cv.get_id());
self.send(&response).await
}
Err(e) => {
let response = CommunicationValue::new(CommunicationType::error)
.with_id(cv.get_id())
.add_data(DataTypes::error_type, DataValue::Str(e.to_string()));
self.send(&response).await
}
}
} else {
self.send_error_response(cv.get_id(), CommunicationType::error_invalid_data)
.await
}
}
async fn handle_change_user_data(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
let user_id = cv.get_sender() as i64;
let mut success = true;
let mut error_message = String::new();
// Process each field
if let Some(username) = cv.get_data(DataTypes::username).as_str() {
if let Err(e) = sql::change_username(user_id, username.to_string()).await {
success = false;
error_message = e.to_string();
}
}
if let Some(display) = cv.get_data(DataTypes::display).as_str() {
if let Err(e) = sql::change_display_name(user_id, display.to_string()).await {
success = false;
error_message = e.to_string();
}
}
if let Some(avatar) = cv.get_data(DataTypes::avatar).as_str() {
if let Err(e) = sql::change_avatar(user_id, avatar.to_string()).await {
success = false;
error_message = e.to_string();
}
}
if let Some(about) = cv.get_data(DataTypes::about).as_str() {
if let Err(e) = sql::change_about(user_id, about.to_string()).await {
success = false;
error_message = e.to_string();
}
}
if let Some(status) = cv.get_data(DataTypes::status).as_str() {
if let Err(e) = sql::change_status(user_id, status.to_string()).await {
success = false;
error_message = e.to_string();
}
}
if let (Some(public_key), Some(private_key_hash)) = (
cv.get_data(DataTypes::public_key).as_str(),
cv.get_data(DataTypes::private_key_hash).as_str(),
) {
if let Err(e) = sql::change_keys(
user_id,
public_key.to_string(),
private_key_hash.to_string(),
)
.await
{
success = false;
error_message = e.to_string();
}
}
if success {
let response = CommunicationValue::new(CommunicationType::success).with_id(cv.get_id());
self.send(&response).await
} else {
let response = CommunicationValue::new(CommunicationType::error)
.with_id(cv.get_id())
.add_data(DataTypes::error_type, DataValue::Str(error_message));
self.send(&response).await
}
}
async fn handle_change_iota_data(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
let user_id = cv.get_sender() as i64;
if let (Some(iota_id), Some(reset_token), Some(new_token)) = (
cv.get_data(DataTypes::iota_id)
.as_number()
.map(|n| n as i64),
cv.get_data(DataTypes::reset_token).as_str(),
cv.get_data(DataTypes::new_token).as_str(),
) {
match sql::get_by_user_id(user_id).await {
Ok(user) => {
let current_token = user.11; // reset_token field
if current_token == reset_token {
let mut success = true;
let mut error_message = String::new();
if let Err(e) = sql::change_iota_id(user_id, iota_id).await {
success = false;
error_message = e.to_string();
}
if success {
if let Err(e) = sql::change_token(user_id, new_token.to_string()).await
{
success = false;
error_message = e.to_string();
}
}
if success {
let response = CommunicationValue::new(CommunicationType::success)
.with_id(cv.get_id());
self.send(&response).await
} else {
let response = CommunicationValue::new(CommunicationType::error)
.with_id(cv.get_id())
.add_data(DataTypes::error_type, DataValue::Str(error_message));
self.send(&response).await
}
} else {
self.send_error_response(
cv.get_id(),
CommunicationType::error_invalid_challenge,
)
.await
}
}
Err(_) => {
self.send_error_response(cv.get_id(), CommunicationType::error_not_found)
.await
}
}
} else {
self.send_error_response(cv.get_id(), CommunicationType::error_invalid_data)
.await
}
}
async fn handle_delete_user(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
let user_id = cv.get_sender() as i64;
match sql::delete_user(user_id).await {
Ok(_) => {
let response =
CommunicationValue::new(CommunicationType::success).with_id(cv.get_id());
self.send(&response).await
}
Err(e) => {
let response = CommunicationValue::new(CommunicationType::error)
.with_id(cv.get_id())
.add_data(DataTypes::error_type, DataValue::Str(e.to_string()));
self.send(&response).await
}
}
}
async fn handle_delete_iota(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
if let Some(iota_id) = cv
.get_data(DataTypes::iota_id)
.as_number()
.map(|n| n as i64)
{
match sql::delete_iota(iota_id).await {
Ok(_) => {
let response =
CommunicationValue::new(CommunicationType::success).with_id(cv.get_id());
self.send(&response).await
}
Err(e) => {
let response = CommunicationValue::new(CommunicationType::error)
.with_id(cv.get_id())
.add_data(DataTypes::error_type, DataValue::Str(e.to_string()));
self.send(&response).await
}
}
} else {
self.send_error_response(cv.get_id(), CommunicationType::error_invalid_data)
.await
}
}
async fn handle_get_notifications(
self: Arc<Self>,
cv: CommunicationValue,
) -> OmikronResult<()> {
let user_id = cv.get_sender() as i64;
if let Ok(notifications) = sql::get_notifications(user_id).await {
let json_array: Vec<DataValue> = notifications
.into_iter()
.map(|(sender, amount)| {
DataValue::Container(vec![
(DataTypes::sender_id, DataValue::Number(sender)),
(DataTypes::amount, DataValue::Number(amount)),
])
})
.collect();
let response = CommunicationValue::new(CommunicationType::get_notifications)
.with_id(cv.get_id())
.add_data(DataTypes::notifications, DataValue::Array(json_array));
self.send(&response).await
} else {
Ok(())
}
}
async fn handle_read_notification(
self: Arc<Self>,
cv: CommunicationValue,
) -> OmikronResult<()> {
let user_id = cv.get_sender() as i64;
if let Some(other_id) = cv
.get_data(DataTypes::sender_id)
.as_number()
.map(|n| n as i64)
{
if sql::read_notification(user_id, other_id).await.is_ok() {
let response = CommunicationValue::new(CommunicationType::read_notification)
.with_id(cv.get_id());
self.send(&response).await
} else {
Ok(())
}
} else {
Ok(())
}
}
async fn handle_push_notification(
self: Arc<Self>,
cv: CommunicationValue,
) -> OmikronResult<()> {
let user_id = cv.get_sender() as i64;
if let Some(other_id) = cv
.get_data(DataTypes::sender_id)
.as_number()
.map(|n| n as i64)
{
if sql::add_notification(user_id, other_id).await.is_ok() {
let response = CommunicationValue::new(CommunicationType::push_notification)
.with_id(cv.get_id());
self.send(&response).await
} else {
Ok(())
}
} else {
Ok(())
}
}
async fn handle_ping(self: Arc<Self>, cv: CommunicationValue) -> OmikronResult<()> {
if let DataValue::Number(last_ping) = cv.get_data(DataTypes::last_ping) {
*self.ping.write().await = *last_ping;
}
let response = CommunicationValue::new(CommunicationType::pong).with_id(cv.get_id());
self.send(&response).await
}
// -------------------------------------------------------------------------
// Utilities
// -------------------------------------------------------------------------
async fn send(self: Arc<Self>, cv: &CommunicationValue) -> OmikronResult<()> {
log_cv_out!(PrintType::Omikron, cv);
let guard = self.sender.lock().await;
let sender = guard.as_ref().ok_or(OmikronError::NotConnected)?;
sender
.send(cv)
.await
.map_err(|e| OmikronError::Send(e.to_string()))
}
async fn send_error_response(
self: Arc<Self>,
message_id: u32,
error_type: CommunicationType,
) -> OmikronResult<()> {
let error = CommunicationValue::new(error_type).with_id(message_id);
self.send(&error).await
}
pub async fn close(self: Arc<Self>) {}
async fn cleanup(self: Arc<Self>) {
if let Some(omikron_id) = self.state.read().await.omikron_id() {
if omikron_id != 0 {
log_in!(omikron_id, PrintType::Omega, "Omikron disconnected");
omikron_manager::remove_omikron(omikron_id).await;
user_online_tracker::untrack_omikron(omikron_id).await;
}
}
// Cancel cleanup task
if let Some(handle) = self.cleanup_handle.lock().await.take() {
handle.abort();
}
}
fn arc_self(self: Arc<Self>) -> Arc<Self> {
// This is a bit of a hack - in practice you'd store the Arc in the struct
// or use weak references. For now, we rely on the caller having the Arc.
panic!("Use the Arc<OmikronConnection> directly")
}
// Public API for external use
pub async fn is_authenticated(self: Arc<Self>) -> bool {
self.state.read().await.is_authenticated()
}
pub async fn get_omikron_id(self: Arc<Self>) -> Option<i64> {
self.state.read().await.omikron_id()
}
pub async fn send_message(self: Arc<Self>, cv: &CommunicationValue) -> OmikronResult<()> {
self.send(cv).await
}
}
// ============================================================================
// Server Startup
// ============================================================================
pub async fn start(port: u16) -> Result<(), Box<dyn std::error::Error>> {
let _ = aws_lc_rs::default_provider().install_default();
let tls_cfg = load_tls().expect("TLS config failed");
let server_crypto = quinn::crypto::rustls::QuicServerConfig::try_from(tls_cfg)?;
let server_cfg = ServerConfig::with_crypto(Arc::new(server_crypto));
let mut host: Host = epsilon_native::host(port, server_cfg).await?;
log!("OmikronServer listening on port {}", port);
while let Some((sender, receiver)) = host.next().await {
tokio::spawn(async move {
let conn = OmikronConnection::new(sender);
conn.handle(receiver).await;
});
}
Ok(())
}
fn load_tls() -> Option<CryptoConfig> {
let _ = aws_lc_rs::default_provider().install_default();
let mut cert_pem = load_file_buf("certs", "cert.pem").ok()?;
let cert_chain = rustls_pemfile::certs(&mut cert_pem)
.collect::<Result<Vec<_>, _>>()
.ok()?;
let key_pem = load_file_vec("certs", "key.pem").ok()?;
let key_der = rustls_pemfile::private_key(&mut &*key_pem).ok()??;
let cfg = CryptoConfig::builder()
.with_no_client_auth()
.with_single_cert(cert_chain, key_der)
.ok()?;
Some(cfg)
}