feat: we can now log in.

.gitignore

@@ -1 +1,3 @@
 /target
+users.db*
+.en*

Cargo.toml

@@ -7,6 +7,7 @@ publish = ["crates-io"]
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+cfg-if = "1.0.0"
 color-eyre = "0.6.2"
 poem = { version = "1.3.58", features = [
     "compression",
@@ -15,15 +16,11 @@ poem = { version = "1.3.58", features = [
     "static-files",
     "xml",
 ] }
-poem-openapi = { version = "3.0.5", features = [
-    "time",
-    "openapi-explorer",
-    "url",
-    "static-files",
-] }
 quick-xml = { version = "0.30.0", features = ["serialize"] }
 serde = { version = "1.0.188", features = ["derive"] }
 serde_json = "1.0.107"
+sqlx = { version = "0.7.2", features = ["time", "sqlite", "runtime-tokio"] }
+time = { version = "0.3.29", features = ["serde-human-readable", "macros", "parsing"] }
 tokio = { version = "1.32.0", features = ["full"] }
 tracing = { version = "0.1.37", features = ["async-await"] }
 tracing-subscriber = { version = "0.3.17", features = [

Dockerfile

@@ -13,6 +13,8 @@ RUN rm -rfv /volume/src/*.rs
 COPY . .
 
 RUN rm -rfv /volume/target/*/release/rave
+
+ENV DATABASE_URL='sqlite:/config/users.db'
 RUN cargo build --release --features docker
 
 RUN mv target/*-unknown-linux-musl/release/rave /tmp/rave
@@ -22,7 +24,7 @@ FROM gcr.io/distroless/static AS runtime
 
 COPY --from=build /tmp/rave /rave
 
-VOLUME [ "/storage", "/config", "/cache" ]
+VOLUME [ "/storage", "/config" ]
 
 ENV RUST_LOG=info
 

build.rs

@@ -0,0 +1,5 @@
+// generated by `sqlx migrate build-script`
+fn main() {
+    // trigger recompilation when a new migration is added
+    println!("cargo:rerun-if-changed=migrations");
+}

migrations/0001_create-user.sql

@@ -0,0 +1 @@
+-- Add migration script here

src/authentication.rs

@@ -1,7 +1,10 @@
-use std::{collections::HashMap, str::FromStr, string::ToString};
+use std::{collections::HashMap, fmt::Display, str::FromStr, string::ToString};
 
 use color_eyre::Report;
-use poem::{http::StatusCode, Error, FromRequest, Request, RequestBody, Result};
+use poem::{Error, FromRequest, IntoResponse, Request, RequestBody, Result};
+use tracing::debug;
+
+use crate::subsonic::{self, SubsonicResponse};
 
 mod de;
 
@@ -10,7 +13,12 @@ impl<'a> FromRequest<'a> for Authentication {
     async fn from_request(req: &'a Request, _: &mut RequestBody) -> Result<Self> {
         let query = req.uri().query().unwrap_or_default();
         if query.is_empty() {
-            return Err(Error::from_string("Empty query", StatusCode::BAD_REQUEST));
+            return Err(Error::from_response(
+                SubsonicResponse::new_error(subsonic::Error::RequiredParameterMissing(Some(
+                    "please provide a `u` parameter".to_string(),
+                )))
+                .into_response(),
+            ));
         }
 
         let query = url_escape::decode(query);
@@ -20,75 +28,97 @@ impl<'a> FromRequest<'a> for Authentication {
             .filter_map(|q| q.split_once('='))
             .collect::<HashMap<_, _>>();
 
+        debug!("Query: {query:?}");
+
         let user = {
             let user = query.get("u").map(ToString::to_string);
             if user.is_none() {
-                return Err(Error::from_string(
-                    "Missing username",
-                    StatusCode::BAD_REQUEST,
+                return Err(Error::from_response(
+                    SubsonicResponse::new_error(subsonic::Error::RequiredParameterMissing(Some(
+                        "please provide a `u` parameter".to_string(),
+                    )))
+                    .into_response(),
                 ));
             }
             user.expect("Missing username")
         };
 
+        debug!("User: {user}");
+
         let password = query.get("p").map(ToString::to_string);
         if password.is_some() {
-            return Err(Error::from_string(
-                "Password authentication is not supported",
-                StatusCode::BAD_REQUEST,
+            return Err(Error::from_response(
+                SubsonicResponse::new_error(subsonic::Error::Generic(Some(
+                    "password authentication is not supported".to_string(),
+                )))
+                .into_response(),
             ));
         }
 
+        debug!("Password: {password:?}");
+
         let token = query.get("t").map(ToString::to_string);
         let salt = query.get("s").map(ToString::to_string);
         if token.is_none() || salt.is_none() {
-            return Err(Error::from_string(
-                "Missing token or salt",
-                StatusCode::BAD_REQUEST,
+            return Err(Error::from_response(
+                SubsonicResponse::new_error(subsonic::Error::RequiredParameterMissing(Some(
+                    "please provide both `t` and `s` parameters".to_string(),
+                )))
+                .into_response(),
             ));
         }
         let token = token.expect("Missing token");
+        debug!("Token: {token}");
         let salt = salt.expect("Missing salt");
+        debug!("Salt: {salt}");
 
         let version = {
             let version = query.get("v").map(ToString::to_string);
 
             if version.is_none() {
-                return Err(Error::from_string(
-                    "Missing version",
-                    StatusCode::BAD_REQUEST,
+                return Err(Error::from_response(
+                    SubsonicResponse::new_error(subsonic::Error::RequiredParameterMissing(Some(
+                        "please provide a `v` parameter".to_string(),
+                    )))
+                    .into_response(),
                 ));
             }
             version
                 .expect("Missing version")
                 .parse::<VersionTriple>()
                 .map_err(|e| {
-                    Error::from_string(format!("Invalid version: {e}"), StatusCode::BAD_REQUEST)
+                    Error::from_response(
+                        SubsonicResponse::new_error(subsonic::Error::Generic(Some(format!(
+                            "invalid version parameter: {e}"
+                        ))))
+                        .into_response(),
+                    )
                 })
         }?;
-        if version < VersionTriple(1, 13, 0) {
-            return Err(Error::from_string(
-                "Unsupported version. We only support 1.13.0 and above",
-                StatusCode::BAD_REQUEST,
-            ));
-        }
+        debug!("Version: {version}");
 
         let client = {
             let client = query.get("c").map(ToString::to_string);
 
             if client.is_none() {
-                return Err(Error::from_string(
-                    "Missing client",
-                    StatusCode::BAD_REQUEST,
+                return Err(Error::from_response(
+                    SubsonicResponse::new_error(subsonic::Error::RequiredParameterMissing(Some(
+                        "please provide a `c` parameter".to_string(),
+                    )))
+                    .into_response(),
                 ));
             }
 
             client.expect("Missing client")
         };
+        debug!("Client: {client}");
+
         let format = query
             .get("f")
             .map_or_else(|| "xml".to_string(), ToString::to_string);
 
+        debug!("Format: {format}");
+
         Ok(Self {
             username: user,
             token,
@@ -113,6 +143,12 @@ pub struct Authentication {
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub struct VersionTriple(pub u32, pub u32, pub u32);
 
+impl Display for VersionTriple {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}.{}.{}", self.0, self.1, self.2)
+    }
+}
+
 impl PartialOrd for VersionTriple {
     fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
         Some(self.cmp(other))

src/main.rs

@@ -1,21 +1,26 @@
 #![warn(clippy::pedantic, clippy::nursery)]
 #![deny(clippy::unwrap_used, clippy::panic)]
+#![allow(clippy::module_name_repetitions, clippy::too_many_lines)]
 
 use std::time::Duration;
 
-use authentication::Authentication;
 use color_eyre::Result;
 use poem::{
     get,
     listener::TcpListener,
     middleware,
     web::{CompressionAlgo, CompressionLevel},
-    EndpointExt, Route,
+    Endpoint, EndpointExt, Route,
 };
+use rest::build;
+use sqlx::SqlitePool;
 use tracing::info;
 use tracing_subscriber::{fmt, EnvFilter};
 
 mod authentication;
+mod rest;
+mod subsonic;
+mod user;
 
 const LISTEN: &str = "0.0.0.0:1234";
 
@@ -24,11 +29,39 @@ async fn main() -> Result<()> {
     color_eyre::install()?;
     install_tracing()?;
 
-    let listener = TcpListener::bind(LISTEN);
+    let route = create_route();
 
-    let route = Route::new()
+    let pool = create_pool().await;
+
+    sqlx::migrate!().run(&pool).await?;
+
+    let route = route.with(middleware::AddData::new(pool));
+
+    let server = create_server();
+
+    let signal_waiter = || async {
+        let _ = tokio::signal::ctrl_c().await;
+    };
+
+    let server =
+        server.run_with_graceful_shutdown(route, signal_waiter(), Some(Duration::from_secs(5)));
+
+    server.await?;
+
+    Ok(())
+}
+async fn create_pool() -> SqlitePool {
+    let url = std::env::var("DATABASE_URL").expect("DATABASE_URL not set");
+
+    SqlitePool::connect(&url)
+        .await
+        .expect("Failed to connect to database")
+}
+
+fn create_route() -> Box<dyn Endpoint<Output = poem::Response>> {
+    Route::new()
         .at("/", get(hello_world))
-        .at("/auth", get(auth_test))
+        .nest("/rest", build())
         .with(middleware::CatchPanic::new())
         .with(
             middleware::Compression::new()
@@ -39,29 +72,34 @@ async fn main() -> Result<()> {
         .with(middleware::CookieJarManager::new())
         .with(middleware::NormalizePath::new(
             middleware::TrailingSlash::Trim,
-        ));
+        ))
+        .boxed()
+}
+
+fn create_server() -> poem::Server<TcpListener<&'static str>, std::convert::Infallible> {
+    let listener = TcpListener::bind(LISTEN);
 
     info!("Listening on http://{LISTEN}");
 
-    let signal_waiter = || async {
-        let _ = tokio::signal::ctrl_c().await;
-    };
-
-    let server = poem::Server::new(listener)
-        .name("rave")
-        .run_with_graceful_shutdown(route, signal_waiter(), Some(Duration::from_secs(5)));
-
-    server.await?;
-
-    Ok(())
+    poem::Server::new(listener).name("rave")
 }
 
 fn install_tracing() -> Result<()> {
-    let filter = std::env::var("RUST_LOG").unwrap_or_else(|_| "warn,rave=debug".to_string());
+    let filter = {
+        cfg_if::cfg_if! {
+            if #[cfg(debug_assertions)] {
+                std::env::var("RUST_LOG").unwrap_or_else(|_| "poem=trace,rave=debug".to_string())
+            } else {
+                std::env::var("RUST_LOG").unwrap_or_else(|_| "poem=warn,rave=debug".to_string())
+            }
+        }
+    };
+
+    let filter = EnvFilter::from(filter);
 
     fmt()
         .pretty()
-        .with_env_filter(EnvFilter::from(filter))
+        .with_env_filter(filter)
         .try_init()
         .map_err(|v| color_eyre::eyre::eyre!("failed to install tracing: {v}"))?;
 
@@ -73,8 +111,38 @@ const fn hello_world() -> &'static str {
     "Hello, world!"
 }
 
-#[allow(clippy::needless_pass_by_value)]
-#[poem::handler]
-fn auth_test(auth: Authentication) -> String {
-    format!("{auth:?}")
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use poem::{
+        http::{Method, StatusCode},
+        Request,
+    };
+
+    #[tokio::test]
+    async fn test_hello_world() {
+        let app = create_route();
+
+        let resp = app
+            .call(Request::builder().method(Method::GET).uri_str("/").finish())
+            .await;
+        assert!(
+            resp.is_ok(),
+            "Failed to get response: {}",
+            resp.expect_err("Failed to get response")
+        );
+
+        let resp = resp.expect("Failed to get response");
+
+        assert_eq!(resp.status(), StatusCode::OK);
+        let body = resp.into_body().into_string().await;
+        assert!(
+            body.is_ok(),
+            "Failed to get body: {}",
+            body.expect_err("Failed to get body")
+        );
+        let body = body.expect("Failed to get body");
+        assert_eq!(body, "Hello, world!");
+    }
 }

src/rest.rs

@@ -0,0 +1,7 @@
+use poem::{Endpoint, EndpointExt, Route};
+
+mod ping;
+
+pub fn build() -> Box<dyn Endpoint<Output = poem::Response>> {
+    Route::new().at("/ping", ping::ping).boxed()
+}

src/rest/ping.rs

@@ -0,0 +1,8 @@
+use crate::{authentication::Authentication, subsonic::SubsonicResponse};
+
+#[poem::handler]
+pub fn ping(auth: Authentication) -> SubsonicResponse {
+    dbg!(auth);
+
+    SubsonicResponse::new_empty()
+}

src/subsonic.rs

@@ -0,0 +1,155 @@
+#![allow(dead_code)] // TODO: Remove this
+
+use poem::{http::StatusCode, IntoResponse, Response};
+use serde::{ser::SerializeStruct, Serialize};
+
+use crate::authentication::VersionTriple;
+
+impl IntoResponse for SubsonicResponse {
+    fn into_response(self) -> poem::Response {
+        let body = quick_xml::se::to_string(&self).expect("Failed to serialize response body");
+        Response::builder().status(StatusCode::OK).body(body)
+    }
+}
+
+#[derive(Debug, Clone, Serialize)]
+pub struct SubsonicResponse {
+    #[serde(rename = "@xmlns")]
+    pub xmlns: String,
+    #[serde(rename = "@status")]
+    pub status: ResponseStatus,
+    #[serde(rename = "@version")]
+    pub version: VersionTriple,
+    #[serde(rename = "$value")]
+    pub inner: SubResponseType,
+}
+
+impl SubsonicResponse {
+    pub fn new(inner: SubResponseType) -> Self {
+        Self {
+            xmlns: "http://subsonic.org/restapi".to_string(),
+            status: ResponseStatus::Ok,
+            version: VersionTriple(1, 16, 1),
+            inner,
+        }
+    }
+
+    pub fn new_empty() -> Self {
+        Self {
+            xmlns: "http://subsonic.org/restapi".to_string(),
+            status: ResponseStatus::Ok,
+            version: VersionTriple(1, 16, 1),
+            inner: SubResponseType::Empty,
+        }
+    }
+
+    pub fn new_error(inner: Error) -> Self {
+        Self {
+            xmlns: "http://subsonic.org/restapi".to_string(),
+            status: ResponseStatus::Failed,
+            version: VersionTriple(1, 16, 1),
+            inner: SubResponseType::Error(inner),
+        }
+    }
+}
+
+#[derive(Debug, Clone, Serialize)]
+pub enum SubResponseType {
+    #[serde(rename = "musicFolders")]
+    MusicFolders(MusicFolders),
+    #[serde(rename = "error")]
+    Error(Error),
+    Empty,
+}
+
+#[derive(Debug, Clone, Serialize)]
+pub struct MusicFolders {}
+
+#[derive(Debug, Clone, Copy)]
+pub enum ResponseStatus {
+    Ok,
+    Failed,
+}
+
+impl Serialize for ResponseStatus {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::Serializer,
+    {
+        serializer.serialize_str(match self {
+            Self::Ok => "ok",
+            Self::Failed => "failed",
+        })
+    }
+}
+
+#[derive(Debug, Clone)]
+pub enum Error {
+    Generic(Option<String>),
+    RequiredParameterMissing(Option<String>),
+    IncompatibleClientVersion(Option<String>),
+    IncompatibleServerVersion(Option<String>),
+    WrongUsernameOrPassword(Option<String>),
+    TokenAuthenticationNotSupportedForLDAP(Option<String>),
+    UserIsNotAuthorizedForGivenOperation(Option<String>),
+    TrialPeriodExpired(Option<String>),
+    RequestedDataWasNotFound(Option<String>),
+}
+
+impl Serialize for Error {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::Serializer,
+    {
+        let mut error = serializer.serialize_struct("error", 2)?;
+        error.serialize_field("@code", &self.code())?;
+        error.serialize_field("@message", &self.message())?;
+        error.end()
+    }
+}
+
+impl Error {
+    pub const fn code(&self) -> i32 {
+        match self {
+            Self::Generic(_) => 0,
+            Self::RequiredParameterMissing(_) => 10,
+            Self::IncompatibleClientVersion(_) => 20,
+            Self::IncompatibleServerVersion(_) => 30,
+            Self::WrongUsernameOrPassword(_) => 40,
+            Self::TokenAuthenticationNotSupportedForLDAP(_) => 41,
+            Self::UserIsNotAuthorizedForGivenOperation(_) => 50,
+            Self::TrialPeriodExpired(_) => 60,
+            Self::RequestedDataWasNotFound(_) => 70,
+        }
+    }
+
+    pub fn message(&self) -> String {
+        match self {
+            Self::Generic(inner) => inner.clone().unwrap_or_else(|| "Generic error".to_string()),
+            Self::RequiredParameterMissing(inner) => inner
+                .clone()
+                .unwrap_or_else(|| "Required parameter missing".to_string()),
+            Self::IncompatibleClientVersion(inner) => inner
+                .clone()
+                .unwrap_or_else(|| "Incompatible client version".to_string()),
+            Self::IncompatibleServerVersion(inner) => inner
+                .clone()
+                .unwrap_or_else(|| "Incompatible server version".to_string()),
+            Self::WrongUsernameOrPassword(inner) => inner
+                .clone()
+                .unwrap_or_else(|| "Wrong username or password".to_string()),
+            Self::TokenAuthenticationNotSupportedForLDAP(inner) => inner
+                .clone()
+                .unwrap_or_else(|| "Token authentication not supported for LDAP".to_string()),
+            Self::UserIsNotAuthorizedForGivenOperation(inner) => inner
+                .clone()
+                .unwrap_or_else(|| "User is not authorized for given operation".to_string()),
+            Self::TrialPeriodExpired(inner) => inner
+                .clone()
+                .unwrap_or_else(|| "Trial period expired".to_string()),
+            Self::RequestedDataWasNotFound(inner) => inner
+                .clone()
+                .unwrap_or_else(|| "Requested data was not found".to_string()),
+        }
+    }
+}

src/user.rs

@@ -0,0 +1,11 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+pub struct User {
+    pub id: i32,
+    pub created_at: time::OffsetDateTime,
+    pub name: String,
+    /// I hate this. It's stored in plaintext. Why?
+    pub password: String,
+    pub is_admin: bool,
+}