feat(relays): implemented user public key fetching and restructured runtime relay manager, so it uses a message queue in order to get shared mutable state

Cargo.lock

@@ -30,7 +30,7 @@ dependencies = [
  "actix-service",
  "actix-utils",
  "ahash",
- "base64",
+ "base64 0.21.7",
  "bitflags 2.4.2",
  "brotli",
  "bytes",
@@ -189,7 +189,7 @@ checksum = "1d613edf08a42ccc6864c941d30fe14e1b676a77d16f1dbadc1174d065a0a775"
 dependencies = [
  "actix-utils",
  "actix-web",
- "base64",
+ "base64 0.21.7",
  "futures-core",
  "futures-util",
  "log",
@@ -371,6 +371,22 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
+
+[[package]]
+name = "base64-serde"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba368df5de76a5bea49aaf0cf1b39ccfbbef176924d1ba5db3e4135216cbe3c7"
+dependencies = [
+ "base64 0.21.7",
+ "serde",
+]
+
 [[package]]
 name = "base64ct"
 version = "1.6.0"
@@ -1029,6 +1045,8 @@ dependencies = [
  "actix-web-httpauth",
  "anyhow",
  "argon2",
+ "base64 0.22.0",
+ "base64-serde",
  "chrono",
  "compile-time-run",
  "dotenvy",
@@ -1038,6 +1056,7 @@ dependencies = [
  "serde",
  "sqlx",
  "thiserror",
+ "tokio",
  "uuid",
 ]
 
@@ -1895,7 +1914,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ed31390216d20e538e447a7a9b959e06ed9fc51c37b514b46eb758016ecd418"
 dependencies = [
  "atoi",
- "base64",
+ "base64 0.21.7",
  "bitflags 2.4.2",
  "byteorder",
  "bytes",
@@ -1938,7 +1957,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7c824eb80b894f926f89a0b9da0c7f435d27cdd35b8c655b114e58223918577e"
 dependencies = [
  "atoi",
- "base64",
+ "base64 0.21.7",
  "bitflags 2.4.2",
  "byteorder",
  "chrono",

Cargo.toml

@@ -10,6 +10,8 @@ license = "MIT"
 [dependencies]
 anyhow = "1.0.81"
 argon2 = "0.5.3"
+base64 = "0.22.0"
+base64-serde = "0.7.0"
 chrono = "0.4.35"
 compile-time-run = "0.2.12"
 dotenvy = "0.15.7"
@@ -19,6 +21,7 @@ rand = "0.8.5"
 serde = { version = "1.0.197", features = ["default"] }
 thiserror = "1.0.58"
 uuid = { version = "1.7.0", features = ["v4"] }
+tokio = { version = "1.36.0", features = ["sync"] }
 
 actix-web = "4.5.1"
 actix-web-httpauth = "0.8.1"

src/api/endpoints/account/mod.rs

@@ -2,7 +2,6 @@ pub mod invite;
 
 use crate::backend::Backend;
 use actix_web::{post, web, HttpResponse, Responder};
-use log::error;
 use serde::{Deserialize, Serialize};
 use std::str::FromStr;
 use uuid::Uuid;
@@ -59,7 +58,7 @@ pub async fn auth(backend: web::Data<Backend>, body: web::Json<AuthRequest>) ->
 
     match backend.authenticate(userid, body.password).await {
         Err(e) => {
-            error!("{e}");
+            log::error!("{e}");
             HttpResponse::InternalServerError().finish()
         }
         Ok(res) => match res {

src/api/endpoints/relay/mod.rs

@@ -1,3 +1,5 @@
+pub mod relay_id;
+
 use crate::backend::Backend;
 use actix_web::{post, web, HttpResponse, Responder};
 use actix_web_httpauth::extractors::bearer::BearerAuth;

src/api/endpoints/relay/relay_id/mod.rs

@@ -0,0 +1 @@
+pub mod user;

src/api/endpoints/relay/relay_id/user/mod.rs

@@ -0,0 +1 @@
+pub mod user_id;

src/api/endpoints/relay/relay_id/user/user_id.rs

@@ -0,0 +1,43 @@
+use crate::{backend::Backend, Base64Encoding};
+use actix_web::{get, web, HttpResponse, Responder};
+use actix_web_httpauth::extractors::bearer::BearerAuth;
+use log::error;
+use serde::Serialize;
+use std::str::FromStr;
+use uuid::Uuid;
+
+#[derive(Debug, Serialize)]
+struct PublicKeyResponse {
+    #[serde(with = "Base64Encoding")]
+    public_key: [u8; 32],
+}
+
+#[get("/relay/{relay_id}/user/{user_id}/public_key")]
+pub async fn public_key(
+    backend: web::Data<Backend>,
+    auth: BearerAuth,
+    path: web::Path<(String, String)>,
+) -> impl Responder {
+    let relay_id = match Uuid::from_str(path.0.as_str()) {
+        Err(_) => return HttpResponse::BadRequest().finish(),
+        Ok(uuid) => uuid,
+    };
+    let user_id = match Uuid::from_str(path.1.as_str()) {
+        Err(_) => return HttpResponse::BadRequest().finish(),
+        Ok(uuid) => uuid,
+    };
+
+    match backend
+        .get_public_key_relay(auth.token(), relay_id, user_id)
+        .await
+    {
+        Err(e) => {
+            error!("{e}");
+            HttpResponse::InternalServerError().finish()
+        }
+        Ok(res) => match res {
+            Err(e) => e.into(),
+            Ok(public_key) => HttpResponse::Ok().json(PublicKeyResponse { public_key }),
+        },
+    }
+}

src/api/mod.rs

@@ -1,7 +1,6 @@
 use crate::{backend::Backend, config::Config};
 use actix_web::{web, App, HttpServer};
 use anyhow::Result;
-use log::info;
 
 mod endpoints;
 
@@ -14,10 +13,11 @@ pub async fn start(config: &Config, backend: Backend) -> Result<()> {
             .service(endpoints::account::auth)
             .service(endpoints::account::invite::new)
             .service(endpoints::relay::create)
+            .service(endpoints::relay::relay_id::user::user_id::public_key)
     })
     .bind((config.addr.as_str(), config.port))?;
 
-    info!("API starting");
+    log::info!("API starting");
     if let Some(threads) = config.threads {
         server.workers(threads as usize).run().await?;
     } else {

src/backend/db_structures.rs

@@ -1,4 +1,4 @@
-use sqlx::types::chrono::NaiveDateTime;
+use sqlx::{types::chrono::NaiveDateTime, FromRow};
 
 pub struct InviteTokensRow {
     pub token: String,
@@ -22,9 +22,10 @@ pub struct RelaysRow {
     pub secret: String,
 }
 
+#[derive(FromRow)]
 pub struct RelayIndexRow {
+    pub private_id: String,
     pub public_id: String,
-    pub public_key: [u8; 32],
+    pub public_key: Vec<u8>,
-    pub auth: String,
     pub name: String,
 }

src/backend/mod.rs

@@ -5,17 +5,18 @@ mod relay;
 mod tokens;
 mod user;
 
-use crate::{backend::relay::Relay, config::Config};
+use crate::config::Config;
 use anyhow::Result;
-use log::info;
 use sqlx::MySqlPool;
-use std::collections::HashMap;
+use tokio::sync::{mpsc, oneshot};
-use uuid::Uuid;
 
 #[derive(Debug)]
 pub struct Backend {
     pub pool: MySqlPool,
-    pub relays: HashMap<Uuid, Relay>,
+    pub relays_manager: mpsc::UnboundedSender<(
+        relay::manager::Request,
+        oneshot::Sender<relay::manager::Response>,
+    )>,
 }
 
 impl Backend {
@@ -60,11 +61,13 @@ impl Backend {
         .execute(&pool)
         .await?;
 
-        info!("Backend initialized");
+        log::info!("Database initialized");
+
+        let tx = relay::manager::start(pool.to_owned()).await;
 
         Ok(Self {
             pool,
-            relays: HashMap::new(),
+            relays_manager: tx,
         })
     }
 }

src/backend/relay/manager.rs

@@ -0,0 +1,154 @@
+use crate::backend::{
+    db_structures::{RelayIndexRow, RelaysRow},
+    error::Error,
+    relay::{Relay, UserIndex},
+};
+use anyhow::{anyhow, bail, Result};
+use sqlx::MySqlPool;
+use std::{
+    collections::{HashMap, VecDeque},
+    fmt::{Display, Formatter},
+    str::FromStr,
+};
+use tokio::sync::{
+    mpsc,
+    mpsc::{UnboundedReceiver, UnboundedSender},
+    oneshot,
+};
+use uuid::Uuid;
+
+pub enum Request {
+    FetchUserPublicKey {
+        requester: Uuid,
+        relay: Uuid,
+        user: Uuid,
+    },
+}
+
+#[derive(Debug)]
+pub enum Response {
+    FetchUserPublicKey(Result<Result<[u8; 32], Error>>),
+}
+
+impl Display for Response {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "Response::{}",
+            match self {
+                Response::FetchUserPublicKey(_) => "FetchUserPublicKey",
+            }
+        )?;
+        Ok(())
+    }
+}
+
+pub struct Manager {
+    pub pool: MySqlPool,
+    pub relays: HashMap<Uuid, Relay>,
+}
+
+impl Manager {
+    /// Returns a reference to a relay. If the relay is not loaded into the
+    /// runtime manager, it will be loaded by this function.
+    pub async fn get_relay(&mut self, relay_id: Uuid) -> Result<Result<&Relay, Error>> {
+        if self.relays.get(&relay_id).is_none() {
+            match sqlx::query_as!(
+                RelaysRow,
+                r#"SELECT * FROM Relays WHERE id = ? LIMIT 1;"#,
+                relay_id.as_bytes().as_slice()
+            )
+            .fetch_one(&self.pool)
+            .await
+            {
+                Err(sqlx::Error::RowNotFound) => return Ok(Err(Error::RelayNotFound)),
+                Err(e) => return Err(e.into()),
+                Ok(_) => {
+                    let mut user_index = HashMap::new();
+                    let mut user_map = HashMap::new();
+
+                    let rows: Vec<RelayIndexRow> =
+                        sqlx::query_as(&format!("SELECT * FROM RelayIndex_{};", relay_id.simple()))
+                            .fetch_all(&self.pool)
+                            .await?;
+
+                    for row in rows {
+                        let public_id = Uuid::from_str(&row.public_id)?;
+
+                        user_map.insert(Uuid::from_str(&row.private_id)?, public_id);
+                        user_index.insert(
+                            public_id,
+                            UserIndex {
+                                public_key: row.public_key.as_slice().try_into()?,
+                                name: row.name,
+                                messages: VecDeque::new(),
+                            },
+                        );
+                    }
+
+                    let relay = Relay {
+                        user_index,
+                        user_map,
+                    };
+
+                    self.relays.insert(relay_id, relay);
+                }
+            }
+        }
+
+        if let Some(relay) = self.relays.get(&relay_id) {
+            Ok(Ok(relay))
+        } else {
+            bail!("!!! This should never happen !!! relay not found in runtime manager, even tho it was there before.")
+        }
+    }
+
+    async fn handle_request(
+        &mut self,
+        request: Request,
+        tx: oneshot::Sender<Response>,
+    ) -> Result<()> {
+        match request {
+            Request::FetchUserPublicKey {
+                requester,
+                relay,
+                user,
+            } => tx
+                .send(Response::FetchUserPublicKey(
+                    self.get_public_key(requester, relay, user).await,
+                ))
+                .map_err(|_| anyhow!("Failed to send response back to oneshot"))?,
+        };
+
+        Ok(())
+    }
+}
+
+async fn manager(pool: MySqlPool, mut rx: UnboundedReceiver<(Request, oneshot::Sender<Response>)>) {
+    let mut manager = Manager {
+        pool,
+        relays: HashMap::new(),
+    };
+
+    log::info!("Relays runtime manager initialized");
+
+    loop {
+        let (request, tx) = match rx.recv().await {
+            Some(msg) => msg,
+            None => panic!("The relays runtime manager message queue lost all senders!"),
+        };
+
+        match manager.handle_request(request, tx).await {
+            Ok(_) => (),
+            Err(e) => log::error!("Relays runtime manager: {e}"),
+        };
+    }
+}
+
+pub async fn start(pool: MySqlPool) -> UnboundedSender<(Request, oneshot::Sender<Response>)> {
+    let (tx, rx) = mpsc::unbounded_channel();
+
+    tokio::task::spawn(manager(pool, rx));
+
+    tx
+}

src/backend/relay/mod.rs

@@ -1,9 +1,7 @@
-use crate::backend::{
+pub mod manager;
-    db_structures::{RelayIndexRow, RelaysRow},
+pub mod user;
-    error::Error,
+
-    user::IntoUser,
+use crate::backend::{error::Error, relay, user::IntoUser, Backend};
-    Backend,
-};
 use anyhow::{bail, Result};
 use argon2::{
     password_hash::{rand_core::OsRng, PasswordHasher, SaltString},
@@ -11,6 +9,7 @@ use argon2::{
 };
 use rand::distributions::DistString;
 use std::collections::{HashMap, VecDeque};
+use tokio::sync::oneshot;
 use uuid::Uuid;
 
 #[derive(Debug)]
@@ -32,13 +31,23 @@ pub struct Relay {
     user_map: HashMap<Uuid, Uuid>,
 }
 
+impl Relay {
+    pub fn is_user_in_relay(&self, private_id: &Uuid) -> bool {
+        self.user_map.contains_key(private_id)
+    }
+
+    pub fn get_user_index(&self, public_id: &Uuid) -> Result<&UserIndex, Error> {
+        match self.user_index.get(public_id) {
+            Some(index) => Ok(index),
+            None => Err(Error::UserNotFound),
+        }
+    }
+}
+
 impl Backend {
     /// Creates the structures for a new relay
-    pub async fn create_relay(
+    pub async fn create_relay(&self, user: impl IntoUser) -> Result<Result<(Uuid, String), Error>> {
-        &self,
+        let _user = match user.into_user(&self.pool).await? {
-        user: impl IntoUser,
-    ) -> anyhow::Result<anyhow::Result<(Uuid, String), Error>> {
-        let _user = match user.into_user(&self).await? {
             Ok(user) => user,
             Err(e) => return Ok(Err(e)),
         };
@@ -64,8 +73,8 @@ impl Backend {
         sqlx::query(&format!(
             "CREATE TABLE RelayIndex_{} (
                 public_id   UUID            NOT NULL    PRIMARY KEY,
+                private_id  UUID            NOT NULL,
                 public_key  BINARY(32)      NOT NULL,
-                auth        VARCHAR(128)    NOT NULL,
                 name        VARCHAR(32)
             );",
             relay_id.simple()
@@ -76,35 +85,31 @@ impl Backend {
         Ok(Ok((relay_id, secret)))
     }
 
-    pub async fn get_relay(&mut self, relay_id: Uuid) -> Result<Result<&Relay, Error>> {
+    pub async fn get_public_key_relay(
-        // can't use early return pattern, because of the borrow checker :/
+        &self,
-        if self.relays.get(&relay_id).is_none() {
+        requester: impl IntoUser,
-            match sqlx::query_as!(
+        relay: Uuid,
-                RelaysRow,
+        user: Uuid,
-                r#"SELECT * FROM Relays WHERE id = ? LIMIT 1;"#,
+    ) -> Result<Result<[u8; 32], Error>> {
-                relay_id.as_bytes().as_slice()
+        let requester = match requester.into_user(&self.pool).await? {
-            )
+            Err(e) => return Ok(Err(e)),
-            .fetch_one(&self.pool)
+            Ok(user) => user,
-            .await
-            {
-                Err(sqlx::Error::RowNotFound) => return Ok(Err(Error::RelayNotFound)),
-                Err(e) => return Err(e.into()),
-                Ok(_) => {
-                    // the hashmaps will be filled, as soon, as clients subscribe to the relay
-                    let relay = Relay {
-                        user_index: HashMap::new(),
-                        user_map: HashMap::new(),
         };
 
-                    self.relays.insert(relay_id, relay);
+        let (tx, rx) = oneshot::channel::<manager::Response>();
-                }
-            }
-        }
 
-        if let Some(relay) = self.relays.get(&relay_id) {
+        self.relays_manager.send((
-            Ok(Ok(relay))
+            manager::Request::FetchUserPublicKey {
-        } else {
+                requester: requester.uuid,
-            bail!("!!! This should never happen !!! relay not found in runtime manager, even tho it was there before.")
+                relay,
+                user,
+            },
+            tx,
+        ))?;
+
+        match rx.await? {
+            manager::Response::FetchUserPublicKey(response) => response,
+            resp => bail!("Relay runtime wrong response error: expected Response::FetchUserPublicKey, got: {resp}")
         }
     }
 }

src/backend/relay/user.rs

@@ -0,0 +1,40 @@
+use crate::backend::{
+    error::Error,
+    relay::manager::{self, Manager},
+    user::IntoUser,
+    Backend,
+};
+use anyhow::Result;
+use uuid::Uuid;
+
+impl Manager {
+    pub async fn get_public_key(
+        &mut self,
+        user: impl IntoUser,
+        relay_id: Uuid,
+        user_id: Uuid,
+    ) -> Result<Result<[u8; 32], Error>> {
+        let requester = match user.into_user(&self.pool).await? {
+            Ok(user) => user,
+            Err(e) => return Ok(Err(e)),
+        };
+
+        let requested_relay = match self.get_relay(relay_id).await? {
+            Err(e) => return Ok(Err(e)),
+            Ok(relay) => relay,
+        };
+
+        if !requested_relay.is_user_in_relay(&requester.uuid) {
+            return Ok(Err(Error::PermissionDenied(
+                "You're not part of the relay.",
+            )));
+        }
+
+        let requested_user = match requested_relay.get_user_index(&user_id) {
+            Err(e) => return Ok(Err(e)),
+            Ok(user) => user,
+        };
+
+        Ok(Ok(requested_user.public_key))
+    }
+}

src/backend/tokens.rs

@@ -8,13 +8,13 @@ use crate::backend::{
 use argon2::password_hash::rand_core::OsRng;
 use chrono::{Days, Utc};
 use rand::distributions::DistString;
+use sqlx::MySqlPool;
 use std::str::FromStr;
 use uuid::Uuid;
 
-impl Backend {
 /// Returns the UUID of the user who owns the auth token.
 pub async fn resolve_auth_token(
-        &self,
+    pool: &MySqlPool,
     token: &str,
 ) -> anyhow::Result<anyhow::Result<Uuid, Error>> {
     match sqlx::query_as!(
@@ -22,7 +22,7 @@ impl Backend {
         r#"SELECT * FROM AuthTokens WHERE token = ? LIMIT 1;"#,
         token
     )
-        .fetch_one(&self.pool)
+    .fetch_one(pool)
     .await
     {
         Err(e) => match e {
@@ -34,7 +34,7 @@ impl Backend {
                 Ok(Ok(Uuid::from_str(&row.userid)?))
             } else {
                 sqlx::query!(r#"DELETE FROM AuthTokens WHERE token = ?;"#, token)
-                        .execute(&self.pool)
+                    .execute(pool)
                     .await?;
                 Ok(Err(Error::TokenExpired))
             }
@@ -42,6 +42,7 @@ impl Backend {
     }
 }
 
+impl Backend {
     /// Check whether an invite-token is valid or not.
     pub async fn check_invite_token(
         &self,
@@ -77,7 +78,7 @@ impl Backend {
         &self,
         user: impl IntoUser,
     ) -> anyhow::Result<anyhow::Result<String, Error>> {
-        let user = match user.into_user(&self).await? {
+        let user = match user.into_user(&self.pool).await? {
             Ok(user) => user,
             Err(e) => return Ok(Err(e)),
         };

src/backend/user.rs

@@ -1,4 +1,7 @@
-use crate::backend::{db_structures::UsersRow, error::Error, permissions::Permission, Backend};
+use crate::backend::{
+    db_structures::UsersRow, error::Error, permissions::Permission, tokens::resolve_auth_token,
+    Backend,
+};
 use anyhow::{bail, Result};
 use argon2::{
     password_hash::{rand_core::OsRng, SaltString},
@@ -6,12 +9,12 @@ use argon2::{
 };
 use chrono::Days;
 use rand::distributions::DistString;
-use sqlx::types::chrono::Utc;
+use sqlx::{types::chrono::Utc, MySqlPool};
 use std::str::FromStr;
 use uuid::Uuid;
 
 pub struct User {
-    uuid: Uuid,
+    pub uuid: Uuid,
     password: String,
     permissions: u16,
 }
@@ -60,40 +63,39 @@ impl User {
 }
 
 pub trait IntoUser {
-    async fn into_user(self, backend: &Backend) -> Result<Result<User, Error>>;
+    async fn into_user(self, pool: &MySqlPool) -> Result<Result<User, Error>>;
 }
 
 impl IntoUser for Uuid {
-    async fn into_user(self, backend: &Backend) -> Result<Result<User, Error>> {
+    async fn into_user(self, pool: &MySqlPool) -> Result<Result<User, Error>> {
-        backend.get_user(self).await
+        get_user(pool, self).await
     }
 }
 
 impl IntoUser for &str {
-    async fn into_user(self, backend: &Backend) -> Result<Result<User, Error>> {
+    async fn into_user(self, pool: &MySqlPool) -> Result<Result<User, Error>> {
-        let userid = match backend.resolve_auth_token(self).await? {
+        let userid = match resolve_auth_token(pool, self).await? {
             Ok(userid) => userid,
             Err(e) => return Ok(Err(e)),
         };
-        userid.into_user(backend).await
+        userid.into_user(pool).await
     }
 }
 
 impl IntoUser for User {
-    async fn into_user(self, _backend: &Backend) -> Result<Result<User, Error>> {
+    async fn into_user(self, _pool: &MySqlPool) -> Result<Result<User, Error>> {
         Ok(Ok(self))
     }
 }
 
-impl Backend {
 /// Returns detailed information about the user identified by the UUID.
-    async fn get_user(&self, userid: Uuid) -> Result<Result<User, Error>> {
+async fn get_user(pool: &MySqlPool, userid: Uuid) -> Result<Result<User, Error>> {
     match sqlx::query_as!(
         UsersRow,
         r#"SELECT * FROM Users WHERE userid = ? LIMIT 1;"#,
         userid.as_bytes().as_slice()
     )
-        .fetch_one(&self.pool)
+    .fetch_one(pool)
     .await
     {
         Err(e) => match e {
@@ -104,6 +106,7 @@ impl Backend {
     }
 }
 
+impl Backend {
     /// Creates a new account and returns its UUID.
     pub async fn account_register(
         &self,
@@ -140,7 +143,7 @@ impl Backend {
         userid: Uuid,
         password: String,
     ) -> Result<Result<String, Error>> {
-        let user = match userid.into_user(&self).await? {
+        let user = match userid.into_user(&self.pool).await? {
             Ok(user) => user,
             Err(e) => return Ok(Err(e)),
         };
@@ -152,7 +155,7 @@ impl Backend {
         let mut token = rand::distributions::Alphanumeric.sample_string(&mut OsRng, 48);
         // just for the case, that there's some duplication
         loop {
-            match self.resolve_auth_token(&token).await? {
+            match resolve_auth_token(&self.pool, &token).await? {
                 Ok(_) => token = rand::distributions::Alphanumeric.sample_string(&mut OsRng, 48),
                 Err(Error::InvalidToken) | Err(Error::TokenExpired) => break,
                 Err(e) => bail!("!THIS ERROR SHOULDN'T BE HERE! -> {e}"),

src/main.rs

@@ -4,16 +4,18 @@ mod config;
 
 use crate::backend::Backend;
 use anyhow::Result;
+use base64_serde::base64_serde_type;
 use compile_time_run::run_command_str;
 use config::Config;
-use log::info;
+
+base64_serde_type!(pub Base64Encoding, base64::engine::general_purpose::STANDARD);
 
 #[actix_web::main]
 async fn main() -> Result<()> {
     dotenvy::dotenv()?;
     env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info")).init();
 
-    info!(
+    log::info!(
         "Starting Cipher Relay (v{} - git: {}/{})",
         env!("CARGO_PKG_VERSION"),
         run_command_str!("git", "branch", "--show-current"),