iota/omikron-connector/src/omikron_connection.rs
Alex Emmet c8a6d4104e ...
2026-04-05 00:27:04 +02:00

1174 lines
44 KiB
Rust
Executable file

use dashmap::DashMap;
use iota_logger::{log, log_cv_in, log_cv_out, log_t};
use iota_state::{ACTIVE_TASKS, SHUTDOWN};
use iota_storage::users::contact::Contact;
use iota_storage::util::chat_files::{MessageState, change_message_state};
use iota_storage::util::chats_util::{get_user, mod_user};
use iota_storage::util::communities_util::CommunitiesUtil;
use iota_storage::util::config_util::CONFIG;
use iota_storage::util::{chat_files, chats_util};
use iota_util::crypto_helper;
use iota_util::crypto_util::{DataFormat, SecurePayload};
use iota_util::file_util::{get_children, load_file, save_file};
use json::JsonValue;
use std::collections::HashMap;
use std::sync::{Arc, LazyLock};
use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
use tokio::sync::{Mutex, RwLock, mpsc, watch};
use tokio::task::JoinHandle;
use tokio::time::sleep;
use ttp_core::{CommunicationType, CommunicationValue, DataTypes, DataValue};
use ttp_native::{Receiver, Sender};
use uuid::Uuid;
// ============================================================================
// Configuration
// ============================================================================
const OMIKRON_HOST_DEFAULT: &str = "methanium.net";
const OMIKRON_PORT_DEFAULT: u16 = 959;
const RECONNECT_DELAY: Duration = Duration::from_secs(5);
const MAX_RECONNECT_DELAY: Duration = Duration::from_secs(300);
const CONNECTION_TIMEOUT: Duration = Duration::from_secs(10);
const HEARTBEAT_INTERVAL: Duration = Duration::from_secs(5);
const TASK_CLEANUP_INTERVAL: Duration = Duration::from_secs(60);
const TASK_MAX_AGE: Duration = Duration::from_secs(60);
// ============================================================================
// Waiting Task System
// ============================================================================
pub struct WaitingTask {
pub task: Box<dyn Fn(Arc<OmikronConnection>, CommunicationValue) -> bool + Send + Sync>,
pub inserted_at: Instant,
}
pub static WAITING_TASKS: LazyLock<DashMap<u32, WaitingTask>> = LazyLock::new(|| DashMap::new());
pub fn start_task_cleanup_loop() {
tokio::spawn(async {
loop {
sleep(TASK_CLEANUP_INTERVAL).await;
WAITING_TASKS.retain(|_, v| v.inserted_at.elapsed() < TASK_MAX_AGE);
}
});
}
// ============================================================================
// Connection State
// ============================================================================
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub enum ConnectionState {
Disconnected,
Connecting,
Connected { identified: bool },
}
impl ConnectionState {
pub fn is_connected(&self) -> bool {
matches!(self, ConnectionState::Connected { .. })
}
pub fn is_identified(&self) -> bool {
matches!(self, ConnectionState::Connected { identified: true })
}
}
// ============================================================================
// Omikron Connection (Client-side with auto-reconnect)
// ============================================================================
pub struct OmikronConnection {
state: Arc<RwLock<ConnectionState>>,
sender: Arc<RwLock<Option<Arc<Sender>>>>,
connection_loop_handle: Arc<Mutex<Option<JoinHandle<()>>>>,
host: String,
port: u16,
pub last_ping: Arc<Mutex<i64>>,
heartbeat_handle: Arc<Mutex<Option<JoinHandle<()>>>>,
message_send_times: Arc<Mutex<HashMap<Uuid, Instant>>>,
pub connection_id: Uuid,
shutdown_tx: Arc<Mutex<Option<watch::Sender<bool>>>>,
reconnect_on_close: Arc<RwLock<bool>>,
}
impl OmikronConnection {
pub fn new() -> Self {
Self::with_host(OMIKRON_HOST_DEFAULT, OMIKRON_PORT_DEFAULT)
}
pub fn with_host(host: &str, port: u16) -> Self {
let (shutdown_tx, _) = watch::channel(false);
OmikronConnection {
state: Arc::new(RwLock::new(ConnectionState::Disconnected)),
sender: Arc::new(RwLock::new(None)),
connection_loop_handle: Arc::new(Mutex::new(None)),
host: host.to_string(),
port,
last_ping: Arc::new(Mutex::new(-1)),
heartbeat_handle: Arc::new(Mutex::new(None)),
message_send_times: Arc::new(Mutex::new(HashMap::new())),
connection_id: Uuid::new_v4(),
shutdown_tx: Arc::new(Mutex::new(Some(shutdown_tx))),
reconnect_on_close: Arc::new(RwLock::new(true)),
}
}
// -------------------------------------------------------------------------
// Connection Management
// -------------------------------------------------------------------------
pub async fn connect(self: &Arc<Self>) {
if self.connection_loop_handle.lock().await.is_none() {
self.clone().start().await;
}
}
pub async fn start(self: Arc<Self>) {
if let Some(handle) = self.connection_loop_handle.lock().await.take() {
handle.abort();
}
*self.reconnect_on_close.write().await = true;
let self_clone = self.clone();
let handle = tokio::spawn(async move {
self_clone.connection_loop().await;
});
*self.connection_loop_handle.lock().await = Some(handle);
}
pub async fn stop(&self) {
*self.reconnect_on_close.write().await = false;
if let Some(tx) = self.shutdown_tx.lock().await.take() {
let _ = tx.send(true);
}
if let Some(handle) = self.connection_loop_handle.lock().await.take() {
handle.abort();
}
if let Some(handle) = self.heartbeat_handle.lock().await.take() {
handle.abort();
}
if let Some(sender) = self.sender.read().await.as_ref() {
sender.close();
}
*self.state.write().await = ConnectionState::Disconnected;
*self.sender.write().await = None;
}
async fn connection_loop(self: Arc<Self>) {
let mut reconnect_delay = RECONNECT_DELAY;
let shutdown_rx = self.shutdown_tx.lock().await.as_ref().unwrap().subscribe();
let mut shutdown_rx = shutdown_rx;
loop {
if *shutdown_rx.borrow() || *SHUTDOWN.read().await {
log_t!("omikron_connection_loop_shutdown");
break;
}
if !*self.reconnect_on_close.read().await {
break;
}
match self.clone().connect_once().await {
Ok(()) => {
if *self.reconnect_on_close.read().await {
log!("Connection lost, reconnecting in {:?}...", reconnect_delay);
} else {
break;
}
}
Err(e) => {
log!(
"Connection failed: {}, retrying in {:?}...",
e,
reconnect_delay
);
}
}
tokio::select! {
_ = sleep(reconnect_delay) => {}
_ = shutdown_rx.changed() => {
if *shutdown_rx.borrow() {
break;
}
}
}
reconnect_delay = std::cmp::min(reconnect_delay * 2, MAX_RECONNECT_DELAY);
}
}
async fn connect_once(self: Arc<Self>) -> Result<(), String> {
*self.state.write().await = ConnectionState::Connecting;
log_t!("omikron_connecting");
let addr_str = format!("https://{}:{}/ws/iota/", self.host, self.port);
let (sender, mut receiver) = ttp_native::client::connect(&addr_str, None)
.await
.map_err(|e| format!("Connection failed: {}", e))?;
log_t!("omikron_connection_success");
let sender_arc = Arc::new(sender);
*self.sender.write().await = Some(sender_arc.clone());
*self.state.write().await = ConnectionState::Connected { identified: false };
// Start read loop
let read_self = self.clone();
let read_handle = tokio::spawn(async move {
read_self.read_loop(&mut receiver).await;
});
// Handle registration/identification
self.handle_authentication().await;
// Start heartbeat
let heartbeat_self = self.clone();
let heartbeat_handle = tokio::spawn(async move {
heartbeat_self.heartbeat_loop().await;
});
*self.heartbeat_handle.lock().await = Some(heartbeat_handle);
{
ACTIVE_TASKS.insert("Omikron Listener".to_string());
}
// Wait for read loop to complete
let result = read_handle.await;
*self.sender.write().await = None;
*self.state.write().await = ConnectionState::Disconnected;
{
ACTIVE_TASKS.remove("Omikron Listener");
}
if let Some(handle) = self.heartbeat_handle.lock().await.take() {
handle.abort();
}
match result {
Ok(()) => {
if *self.reconnect_on_close.read().await {
Err("Connection closed, will reconnect".to_string())
} else {
Ok(())
}
}
Err(e) => Err(format!("Read loop error: {}", e)),
}
}
// -------------------------------------------------------------------------
// Authentication (Registration/Identification)
// -------------------------------------------------------------------------
async fn handle_authentication(&self) {
let conf = CONFIG.read().await;
let iota_id = conf.get_iota_id();
let public_key = conf.get_public_key();
let private_key = conf.get_private_key();
drop(conf);
if iota_id == 0 {
log_t!("iota_register_new");
let (pub_k, priv_k) = if let (Some(pk), Some(sk)) = (public_key, private_key) {
(pk, sk)
} else {
let key_pair = crypto_helper::generate_keypair();
let public_key_base64 = crypto_helper::public_key_to_base64(&key_pair.public);
let private_key_base64 = crypto_helper::secret_key_to_base64(&key_pair.secret);
let mut conf_write = CONFIG.write().await;
conf_write.change("public_key", JsonValue::from(public_key_base64.clone()));
conf_write.change("private_key", JsonValue::from(private_key_base64.clone()));
conf_write.update();
drop(conf_write);
(public_key_base64, private_key_base64)
};
let register_msg = CommunicationValue::new(CommunicationType::register_iota)
.add_data(DataTypes::public_key, DataValue::Str(pub_k));
let msg_id = register_msg.get_id();
WAITING_TASKS.insert(
msg_id,
WaitingTask {
task: Box::new(|selfc, cv| {
if !cv.is_type(CommunicationType::success) {
return false;
}
let iota_value = cv.get_data(DataTypes::iota_id);
let iota_id = iota_value.as_number().unwrap_or(0);
if iota_id != 0 {
tokio::spawn(async move {
let mut conf_write = CONFIG.write().await;
conf_write.change("iota_id", JsonValue::from(iota_id));
conf_write.update();
drop(conf_write);
log!("Registered with Iota-ID: {}", iota_id);
// Send identification after registration
let identify_msg =
CommunicationValue::new(CommunicationType::identification)
.add_data(DataTypes::iota_id, DataValue::Number(iota_id));
selfc.send_message(&identify_msg).await;
});
} else {
log!("Iota registration failed.");
}
true
}),
inserted_at: Instant::now(),
},
);
self.send_message(&register_msg).await;
} else {
let identify_msg = CommunicationValue::new(CommunicationType::identification)
.add_data(DataTypes::iota_id, DataValue::Number(iota_id));
self.send_message(&identify_msg).await;
}
}
// -------------------------------------------------------------------------
// Read Loop & Heartbeat
// -------------------------------------------------------------------------
async fn read_loop(self: Arc<Self>, receiver: &mut Receiver) {
loop {
let result = receiver.receive().await;
match result {
Ok(cv) => {
self.clone().handle_message(cv).await;
}
Err(e) => {
self.fail_all_waiting_tasks(format!(
"Connection receive error: {} (connection_id={})",
e, self.connection_id
))
.await;
break;
}
}
if !receiver.is_open() {
self.fail_all_waiting_tasks(format!(
"Connection closed (connection_id={}, receiver_open=false)",
self.connection_id
))
.await;
break;
}
}
}
async fn heartbeat_loop(self: Arc<Self>) {
loop {
sleep(HEARTBEAT_INTERVAL).await;
if !self.state.read().await.is_connected() {
break;
}
if let Some(sender) = self.sender.read().await.as_ref() {
if !sender.is_open() {
break;
}
} else {
break;
}
self.send_ping().await;
}
}
// -------------------------------------------------------------------------
// Message Handling (Preserved from original)
// -------------------------------------------------------------------------
pub async fn handle_message(self: Arc<Self>, cv: CommunicationValue) {
if !cv.is_type(CommunicationType::ping) && !cv.is_type(CommunicationType::pong) {
log_cv_in!(&cv);
}
let msg_id = cv.get_id();
// Dispatch waiting task for this message id
if let Some((_, task)) = WAITING_TASKS.remove(&msg_id) {
if (task.task)(self.clone(), cv.clone()) {
return;
}
}
if cv.is_type(CommunicationType::pong) {
self.handle_pong(&cv).await;
return;
}
if cv.is_type(CommunicationType::challenge) {
self.handle_challenge(&cv).await;
return;
}
if cv.is_type(CommunicationType::identification_response) {
if let Some(_accepted) = cv.get_data(DataTypes::accepted).as_bool() {
let mut state = self.state.write().await;
if let ConnectionState::Connected { identified: _ } = *state {
*state = ConnectionState::Connected { identified: true };
}
}
return;
}
// ************************************************ //
// Direct messages //
// ************************************************ //
if cv.is_type(CommunicationType::message_state) {
let sender_id = &cv.get_sender();
let receiver_id = match cv.get_data(DataTypes::chat_partner_id).as_number() {
Some(id) => id,
_ => return,
};
// Parse send_time robustly: accept numeric or string, fallback to current time
let send_time_val = cv.get_data(DataTypes::send_time);
let now_i64 = SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap_or_default()
.as_millis() as i64;
let timestamp_i64 = if let Some(n) = send_time_val.as_number() {
n as i64
} else if let Some(s) = send_time_val.as_str() {
s.parse::<i64>().unwrap_or(now_i64)
} else {
now_i64
};
let _ = chat_files::change_message_state(
timestamp_i64,
receiver_id as i64,
*sender_id as i64,
MessageState::from_str(
cv.get_data(DataTypes::message_state).as_str().unwrap_or(""),
),
);
}
// Incoming storsed message: store for the recipient, attempt local delivery, notify sender.
if cv.is_type(CommunicationType::message_send) {
let sender_id: u64 = cv.get_sender();
// parse receiver_id (the storage owner for this incoming message)
let receiver_id: i64 = if let Some(n) = cv.get_data(DataTypes::receiver_id).as_number()
{
n as i64
} else if let Some(s) = cv.get_data(DataTypes::receiver_id).as_str() {
s.parse::<i64>().unwrap_or(0)
} else {
0
};
// parse send_time robustly (number or string), fallback to now
let send_time_val = cv.get_data(DataTypes::send_time);
let now_i64 = SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap_or_default()
.as_millis() as i64;
let timestamp_i64 = if let Some(n) = send_time_val.as_number() {
n as i64
} else if let Some(s) = send_time_val.as_str() {
s.parse::<i64>().unwrap_or(now_i64)
} else {
now_i64
};
let timestamp_u128 = timestamp_i64 as u128;
// content may be missing; default to empty string
let content = cv
.get_data(DataTypes::content)
.as_str()
.unwrap_or("")
.to_string();
let height = cv.get_data(DataTypes::height).as_number().unwrap_or(0) as i64;
// persist message for the receiver (storage_owner = receiver_id)
chat_files::add_message(
timestamp_u128,
false,
receiver_id as i64,
sender_id as i64,
&content,
height,
);
// persist message for the sender (storage_owner = sender_id)
chat_files::add_message(
timestamp_u128,
true,
sender_id as i64,
receiver_id as i64,
&content,
height,
);
// send confirmation back to sender
let conf_msg = CommunicationValue::new(CommunicationType::message_send)
.with_id(cv.get_id())
.with_receiver(sender_id as u64);
self.send_message(&conf_msg).await;
// Build a live-delivery message for the local client (recipient)
let user_forward = CommunicationValue::new(CommunicationType::message_live)
.with_id(cv.get_id())
.with_receiver(receiver_id as u64)
.add_data(DataTypes::send_time, DataValue::Number(timestamp_i64))
.add_data(DataTypes::content, DataValue::Str(content.clone()))
.add_data(DataTypes::sender_id, DataValue::Number(sender_id as i64))
.add_data(DataTypes::height, DataValue::Number(height));
// Attempt delivery and await a response from the local client
let user_resp = self
.clone()
.await_response(&user_forward, Some(Duration::from_secs(10)))
.await;
if let Ok(user_resp) = user_resp {
let ms_raw = user_resp
.get_data(DataTypes::message_state)
.as_string()
.unwrap_or_else(|| "".to_string());
let ms = MessageState::from_str(&ms_raw).upgrade(MessageState::Received);
// update stored message state for receiver
let _ = chat_files::change_message_state(
timestamp_i64,
receiver_id as i64,
sender_id as i64,
ms.clone(),
);
// update stored message state for sender
let _ = chat_files::change_message_state(
timestamp_i64,
sender_id as i64,
receiver_id as i64,
ms.clone(),
);
// notify original sender about the delivered/read state
self.send_message(
&CommunicationValue::new(CommunicationType::message_state)
.with_id(cv.get_id())
.with_receiver(sender_id as u64)
.with_sender(receiver_id as u64)
.add_data(
DataTypes::chat_partner_id,
DataValue::Number(sender_id as i64),
)
.add_data(DataTypes::send_time, DataValue::Number(timestamp_i64))
.add_data(
DataTypes::message_state,
DataValue::Str(ms.as_str().to_string()),
),
)
.await;
} else {
// Delivery failed or timed out; mark as Sent
let _ = chat_files::change_message_state(
timestamp_i64,
receiver_id as i64,
sender_id as i64,
MessageState::Sent,
);
let _ = chat_files::change_message_state(
timestamp_i64,
sender_id as i64,
receiver_id as i64,
MessageState::Sent,
);
// notify sender
self.send_message(
&CommunicationValue::new(CommunicationType::message_state)
.with_id(cv.get_id())
.with_receiver(sender_id as u64)
.with_sender(receiver_id as u64)
.add_data(DataTypes::send_time, DataValue::Number(timestamp_i64))
.add_data(
DataTypes::chat_partner_id,
DataValue::Number(sender_id as i64),
)
.add_data(
DataTypes::message_state,
DataValue::Str(MessageState::Sent.as_str().to_string()),
),
)
.await;
}
return;
}
if cv.is_type(CommunicationType::message_other_iota) {
let sender_id = &cv.get_sender();
let receiver_id = &cv.get_receiver();
// parse send_time safely (number or string), fallback to now
let send_time_val = cv.get_data(DataTypes::send_time);
let now_i64 = SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap_or_default()
.as_millis() as i64;
let timestamp = if let Some(n) = send_time_val.as_number() {
n as i64
} else if let Some(s) = send_time_val.as_str() {
s.parse::<i64>().unwrap_or(now_i64)
} else {
now_i64
};
// content may be missing or non-string; default to empty string
let content = cv
.get_data(DataTypes::content)
.as_str()
.unwrap_or("")
.to_string();
let height = cv.get_data(DataTypes::height).as_number().unwrap_or(0) as i64;
chat_files::add_message(
timestamp as u128,
false,
*receiver_id as i64,
*sender_id as i64,
&content,
height,
);
// Build user_forward using the parsed numeric timestamp and safe content string
let user_forward = CommunicationValue::new(CommunicationType::message_live)
.with_id(cv.get_id())
.with_receiver(*receiver_id)
.add_data(DataTypes::send_time, DataValue::Number(timestamp))
.add_data(DataTypes::content, DataValue::Str(content.clone()))
.add_data(DataTypes::sender_id, DataValue::Number(*sender_id as i64))
.add_data(DataTypes::height, DataValue::Number(height));
let user_resp = self
.clone()
.await_response(&user_forward, Some(Duration::from_secs(10)))
.await;
if let Ok(user_resp) = user_resp {
let ms_raw = user_resp
.get_data(DataTypes::message_state)
.as_string()
.unwrap_or_else(|| "".to_string());
let ms = MessageState::from_str(&ms_raw).upgrade(MessageState::Received);
let _ = change_message_state(
timestamp,
*receiver_id as i64,
*sender_id as i64,
ms.clone(),
);
self.send_message(
&CommunicationValue::new(CommunicationType::message_state)
.with_id(cv.get_id())
.with_receiver(*sender_id)
.with_sender(*receiver_id)
.add_data(DataTypes::send_time, DataValue::Number(timestamp))
.add_data(
DataTypes::chat_partner_id,
DataValue::Number(*sender_id as i64),
)
.add_data(
DataTypes::message_state,
DataValue::Str(ms.as_str().to_string()),
),
)
.await;
} else {
// Delivery timed out/failed — update stored state and notify sender with numeric timestamp
let _ = chat_files::change_message_state(
timestamp,
*receiver_id as i64,
*sender_id as i64,
MessageState::Sent,
);
self.send_message(
&CommunicationValue::new(CommunicationType::message_state)
.with_id(cv.get_id())
.with_receiver(*sender_id)
.with_sender(*receiver_id)
.add_data(DataTypes::send_time, DataValue::Number(timestamp))
.add_data(
DataTypes::chat_partner_id,
DataValue::Number(*sender_id as i64),
)
.add_data(
DataTypes::message_state,
DataValue::Str(MessageState::Sent.as_str().to_string()),
),
)
.await;
}
return;
}
if cv.is_type(CommunicationType::messages_get) {
let my_id = cv.get_sender();
let partner_id = cv.get_data(DataTypes::user_id).as_number().unwrap_or(0);
let offset = cv.get_data(DataTypes::offset).as_number().unwrap_or(0);
let amount = cv.get_data(DataTypes::amount).as_number().unwrap_or(0);
let messages = chat_files::get_messages(my_id as i64, partner_id, offset, amount);
let mut msg_array: Vec<DataValue> = Vec::new();
for m in messages.members() {
let message_time: i64 = m["message_time"].as_i64().unwrap_or(0);
let content: String = m["content"].as_str().unwrap_or("").to_string();
let sent_by_self: bool = m["sent_by_self"].as_bool().unwrap_or(false);
let height: i64 = m["height"].as_i64().unwrap_or(0);
let sender_id: i64 = if sent_by_self {
my_id as i64
} else {
if let Some(n) = cv.get_data(DataTypes::chat_partner_id).as_number() {
n as i64
} else if let Some(s) = cv.get_data(DataTypes::chat_partner_id).as_str() {
s.parse::<i64>().unwrap_or(partner_id as i64)
} else {
partner_id as i64
}
};
let message_state: String = m["message_state"].as_str().unwrap_or("").to_string();
let mut container = Vec::new();
container.push((DataTypes::send_time, DataValue::Number(message_time)));
container.push((DataTypes::content, DataValue::Str(content)));
container.push((DataTypes::sender_id, DataValue::Number(sender_id)));
container.push((DataTypes::message_state, DataValue::Str(message_state)));
container.push((DataTypes::height, DataValue::Number(height)));
container.push((DataTypes::sent_by_self, DataValue::Bool(sent_by_self)));
msg_array.push(DataValue::Container(container));
}
let resp = CommunicationValue::new(CommunicationType::messages_get)
.with_id(cv.get_id())
.with_receiver(my_id)
.add_data(DataTypes::messages, DataValue::Array(msg_array));
self.send_message(&resp).await;
return;
}
if cv.is_type(CommunicationType::get_chats) {
let user_id = cv.get_sender();
let users = chats_util::get_users(user_id as i64);
let mut user_array = Vec::new();
for user in users {
let mut container = Vec::new();
container.push((DataTypes::user_id, DataValue::Number(user.user_id)));
if let Some(name) = user.user_name {
container.push((DataTypes::username, DataValue::Str(name)));
}
if let Some(ts) = user.last_message_at {
container.push((DataTypes::last_message_at, DataValue::Number(ts)));
}
user_array.push(DataValue::Container(container));
}
let resp = CommunicationValue::new(CommunicationType::get_chats)
.with_id(cv.get_id())
.with_receiver(user_id)
.add_data(DataTypes::user_ids, DataValue::Array(user_array));
self.send_message(&resp).await;
return;
}
if cv.is_type(CommunicationType::add_conversation) {
let user_id = cv.get_sender();
let other_id = match cv.get_data(DataTypes::chat_partner_id).as_number() {
Some(n) => n as i64,
None => cv
.get_data(DataTypes::chat_partner_id)
.as_str()
.unwrap_or("0")
.parse()
.unwrap_or(0),
};
let mut contact = get_user(user_id as i64, other_id).unwrap_or(Contact::new(other_id));
if let Some(name) = cv.get_data(DataTypes::chat_partner_name).as_str() {
contact.user_name = Some(name.to_string());
}
contact.set_last_message_at(
SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap()
.as_millis() as i64,
);
mod_user(user_id as i64, &contact);
let resp = CommunicationValue::new(CommunicationType::add_conversation)
.with_id(cv.get_id())
.with_receiver(user_id);
self.send_message(&resp).await;
return;
}
if cv.is_type(CommunicationType::add_community) {
CommunitiesUtil::add_community(
cv.get_sender() as i64,
cv.get_data(DataTypes::community_address)
.as_str()
.unwrap()
.to_string(),
cv.get_data(DataTypes::community_title)
.as_str()
.unwrap()
.to_string(),
cv.get_data(DataTypes::position)
.as_str()
.unwrap()
.to_string(),
);
let resp = CommunicationValue::new(CommunicationType::add_community)
.with_id(cv.get_id())
.with_receiver(cv.get_sender());
self.send_message(&resp).await;
return;
}
if cv.is_type(CommunicationType::get_communities) {
let mut comm_array = Vec::new();
for c in CommunitiesUtil::get_communities(cv.get_sender() as i64) {
let mut container: Vec<(DataTypes, DataValue)> = Vec::new();
if let Some(address) = c["address"].as_str() {
container.push((
DataTypes::community_address,
DataValue::Str(address.to_string()),
));
}
if let Some(title) = c["title"].as_str() {
container.push((
DataTypes::community_title,
DataValue::Str(title.to_string()),
));
}
if let Some(position) = c["position"].as_str() {
container.push((DataTypes::position, DataValue::Str(position.to_string())));
}
comm_array.push(DataValue::Container(container));
}
let resp = CommunicationValue::new(CommunicationType::get_communities)
.with_id(cv.get_id())
.with_receiver(cv.get_sender())
.add_data(DataTypes::communities, DataValue::Array(comm_array));
self.send_message(&resp).await;
return;
}
if cv.is_type(CommunicationType::remove_community) {
CommunitiesUtil::remove_community(
cv.get_sender() as i64,
cv.get_data(DataTypes::community_address)
.as_str()
.unwrap()
.to_string(),
);
let resp = CommunicationValue::new(CommunicationType::remove_community)
.with_id(cv.get_id())
.with_receiver(cv.get_sender());
self.send_message(&resp).await;
return;
}
if cv.is_type(CommunicationType::settings_save) {
let my_id = cv.get_sender();
let settings_name = cv.get_data(DataTypes::settings_name).as_str().unwrap();
let settings_value = cv.get_data(DataTypes::payload).as_str().unwrap();
save_file(
&format!("users/{}/settings/", my_id),
&format!("{}.settings", settings_name),
&settings_value,
);
let response = CommunicationValue::new(CommunicationType::settings_save)
.with_receiver(my_id)
.with_id(cv.get_id());
self.send_message(&response).await;
return;
}
if cv.is_type(CommunicationType::settings_load) {
let my_id = cv.get_sender();
let settings_name = cv.get_data(DataTypes::settings_name).as_string().unwrap();
let settings_value_str = load_file(
&format!("users/{}/settings/", my_id),
&format!("{}.settings", settings_name),
);
let response = CommunicationValue::new(CommunicationType::settings_load)
.with_id(cv.get_id())
.with_receiver(my_id)
.add_data(DataTypes::payload, DataValue::Str(settings_value_str))
.add_data(DataTypes::settings_name, DataValue::Str(settings_name));
self.send_message(&response).await;
return;
}
if cv.is_type(CommunicationType::settings_list) {
let my_id = cv.get_sender();
let settings = get_children(&format!("users/{}/settings/", my_id));
let mut settings_json = Vec::new();
for s in settings {
let s = s.replace(".settings", "");
if s.is_empty() {
continue;
}
let _ = settings_json.push(DataValue::Str(s));
}
let response = CommunicationValue::new(CommunicationType::settings_list)
.with_id(cv.get_id())
.with_receiver(my_id)
.add_data(DataTypes::settings, DataValue::Array(settings_json));
self.send_message(&response).await;
return;
}
}
async fn handle_challenge(&self, cv: &CommunicationValue) {
let conf = CONFIG.read().await;
let private_key = conf.get_private_key().unwrap();
drop(conf);
let omikron_public_key = cv.get_data(DataTypes::public_key).as_str().unwrap();
let encrypted_challenge = cv.get_data(DataTypes::challenge).as_str().unwrap();
let solved_challenge = {
if let Ok(decrypted) = SecurePayload::new(
encrypted_challenge,
DataFormat::Base64,
crypto_helper::load_secret_key(&private_key).unwrap(),
) {
if let Ok(decrypted) = decrypted
.decrypt_x448(crypto_helper::load_public_key(omikron_public_key).unwrap())
{
Some(decrypted)
} else {
None
}
} else {
None
}
};
if let Some(decrypted) = solved_challenge {
let solved = decrypted.export(DataFormat::Raw);
let response = CommunicationValue::new(CommunicationType::challenge_response)
.with_id(cv.get_id())
.add_data(DataTypes::challenge, DataValue::Str(solved));
self.send_message(&response).await;
}
}
// -------------------------------------------------------------------------
// Public API
// -------------------------------------------------------------------------
pub async fn send_message(&self, cv: &CommunicationValue) {
if let Err(err) = self.send_message_result(cv).await {
log_t!("send_message_failed", err);
}
}
async fn send_message_result(&self, cv: &CommunicationValue) -> Result<(), String> {
let sender_guard = self.sender.read().await;
if let Some(sender) = sender_guard.as_ref() {
if !sender.is_open() {
drop(sender_guard);
if let Some(sender) = self.sender.write().await.take() {
sender.close();
}
self.fail_all_waiting_tasks(format!(
"Send failed: connection closed (connection_id={})",
self.connection_id
))
.await;
return Err("connection closed".to_string());
}
let sender_clone = Arc::clone(sender);
drop(sender_guard);
if !cv.is_type(CommunicationType::ping) && !cv.is_type(CommunicationType::pong) {
log_cv_out!(&cv);
}
if let Err(e) = sender_clone.send(cv).await {
self.fail_all_waiting_tasks(format!(
"Send failed: {} (connection_id={})",
e, self.connection_id
))
.await;
return Err(e.to_string());
}
Ok(())
} else {
Err("not connected".to_string())
}
}
async fn fail_all_waiting_tasks(&self, reason: String) {
let keys: Vec<u32> = WAITING_TASKS.iter().map(|entry| *entry.key()).collect();
for key in keys {
if let Some((_, waiting_task)) = WAITING_TASKS.remove(&key) {
let response = CommunicationValue::new(CommunicationType::error)
.with_id(key)
.add_data(DataTypes::message, DataValue::Str(reason.clone()));
let _ = (waiting_task.task)(OMIKRON_CONNECTION.clone(), response);
}
}
}
pub async fn is_connected(&self) -> bool {
self.state.read().await.is_connected()
}
pub async fn is_identified(&self) -> bool {
self.state.read().await.is_identified()
}
pub async fn await_response(
&self,
cv: &CommunicationValue,
timeout_duration: Option<Duration>,
) -> Result<CommunicationValue, String> {
let (tx, mut rx) = mpsc::channel(1);
let msg_id = cv.get_id();
WAITING_TASKS.insert(
msg_id,
WaitingTask {
task: Box::new(move |_, response_cv| {
let inner_tx = tx.clone();
tokio::spawn(async move {
let _ = inner_tx.send(response_cv).await;
});
true
}),
inserted_at: Instant::now(),
},
);
if let Err(send_err) = self.send_message_result(cv).await {
WAITING_TASKS.remove(&msg_id);
return Err(format!(
"Request send failed (msg_id={}, reason={})",
msg_id, send_err
));
}
let timeout = timeout_duration.unwrap_or(Duration::from_secs(10));
match tokio::time::timeout(timeout, rx.recv()).await {
Ok(Some(response_cv)) => {
if response_cv.is_type(CommunicationType::error) {
let reason = response_cv
.get_data(DataTypes::message)
.as_str()
.unwrap_or("connection error")
.to_string();
Err(format!(
"Request failed due to disconnect (msg_id={}, reason={})",
msg_id, reason
))
} else {
Ok(response_cv)
}
}
Ok(_) => {
WAITING_TASKS.remove(&msg_id);
Err("Channel closed while awaiting response".to_string())
}
Err(_) => {
let waiting_tasks_len = WAITING_TASKS.len();
WAITING_TASKS.remove(&msg_id);
Err(format!(
"Request timed out (msg_id={}, timeout={}s, connected={}, waiting_tasks={})",
msg_id,
timeout.as_secs(),
self.is_connected().await,
waiting_tasks_len
))
}
}
}
pub async fn await_connection(&self, timeout_duration: Option<Duration>) -> Result<(), String> {
if self.state.read().await.is_connected() {
return Ok(());
}
let timeout = timeout_duration.unwrap_or(CONNECTION_TIMEOUT);
let start = Instant::now();
loop {
if self.state.read().await.is_connected() {
return Ok(());
}
if start.elapsed() >= timeout {
return Err(format!(
"Connection not established within {} seconds",
timeout.as_secs()
));
}
sleep(Duration::from_millis(100)).await;
}
}
}
// ============================================================================
// Global Instance
// ============================================================================
pub static OMIKRON_CONNECTION: LazyLock<Arc<OmikronConnection>> = LazyLock::new(|| {
let conn = Arc::new(OmikronConnection::new());
start_task_cleanup_loop();
conn
});
pub async fn get_omikron_connection() -> Arc<OmikronConnection> {
let conn = OMIKRON_CONNECTION.clone();
conn.connect().await;
conn
}