Rename Context to Provider

src/handler/documents.rs

@@ -12,18 +12,21 @@ use crate::{
 };
 
 pub async fn documents_page(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
 ) -> Result<Response, (StatusCode, String)> {
     if let Some(user) = auth_session.user {
-        render_documents_page(ctx, user).await
+        render_documents_page(provider, user).await
     } else {
         Ok(Redirect::to("/login").into_response())
     }
 }
 
-async fn render_documents_page(ctx: Context, user: User) -> Result<Response, (StatusCode, String)> {
+async fn render_documents_page(
-    let mut db = ctx.db_pool.get().map_err(internal_error)?;
+    provider: Provider,
+    user: User,
+) -> Result<Response, (StatusCode, String)> {
+    let mut db = provider.db_pool.get().map_err(internal_error)?;
     let documents =
         permissions::query::accessible_documents(&mut db, &user.id).map_err(internal_error)?;
     let projects =
@@ -35,19 +38,19 @@ async fn render_documents_page(ctx: Context, user: User) -> Result<Response, (St
         projects => projects,
     };
 
-    Ok(ctx.render_resp("documents/list_documents.html", values))
+    Ok(provider.render_resp("documents/list_documents.html", values))
 }
 
 pub async fn create_document_page(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
 ) -> Result<Response, (StatusCode, String)> {
     let user = match auth_session.user {
         Some(user) => user,
         None => return Ok(Redirect::to("/login").into_response()),
     };
 
-    let mut db = ctx.db_pool.get().map_err(internal_error)?;
+    let mut db = provider.db_pool.get().map_err(internal_error)?;
 
     let projects =
         permissions::query::accessible_projects(&mut db, &user.id).map_err(internal_error)?;
@@ -56,7 +59,7 @@ pub async fn create_document_page(
         user => user,
         projects => projects,
     };
-    Ok(ctx.render_resp("documents/create_document.html", values))
+    Ok(provider.render_resp("documents/create_document.html", values))
 }
 
 #[derive(Debug, Deserialize)]
@@ -66,15 +69,15 @@ pub struct CreateDocumentSubmission {
 }
 
 pub async fn create_document_submit(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
     form: Form<CreateDocumentSubmission>,
 ) -> Result<Response, (StatusCode, String)> {
     let user = match auth_session.user {
         Some(user) => user,
         None => return Ok(Redirect::to("/login").into_response()),
     };
-    let mut db = ctx.db_pool.get().map_err(internal_error)?;
+    let mut db = provider.db_pool.get().map_err(internal_error)?;
 
     let project_allowed = permissions::query::check_user_project(
         &mut db,
@@ -102,8 +105,8 @@ pub async fn create_document_submit(
 }
 
 pub async fn edit_document_page(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
     Path((id,)): Path<(Uuid,)>,
 ) -> Result<Response, (StatusCode, String)> {
     let user = match auth_session.user {
@@ -111,7 +114,7 @@ pub async fn edit_document_page(
         None => return Ok(Redirect::to("/login").into_response()),
     };
 
-    let mut db = ctx.db_pool.get().map_err(internal_error)?;
+    let mut db = provider.db_pool.get().map_err(internal_error)?;
 
     let document_allowed = permissions::query::check_user_document(
         &mut db,
@@ -135,7 +138,7 @@ pub async fn edit_document_page(
         projects => projects,
     };
 
-    Ok(ctx.render_resp("documents/edit_document.html", values))
+    Ok(provider.render_resp("documents/edit_document.html", values))
 }
 
 #[derive(Debug, Deserialize)]
@@ -145,8 +148,8 @@ pub struct EditDocumentSubmission {
 }
 
 pub async fn edit_document_submit(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
     Path((document_id,)): Path<(Uuid,)>,
     form: Form<EditDocumentSubmission>,
 ) -> Result<Response, (StatusCode, String)> {
@@ -155,7 +158,7 @@ pub async fn edit_document_submit(
         None => return Ok(Redirect::to("/login").into_response()),
     };
 
-    let mut db = ctx.db_pool.get().map_err(internal_error)?;
+    let mut db = provider.db_pool.get().map_err(internal_error)?;
 
     let document_allowed = permissions::query::check_user_document(
         &mut db,

src/handler/home.rs

@@ -5,9 +5,12 @@ use crate::models::projects::Project;
 
 use {crate::permissions, crate::prelude::*};
 
-pub async fn home_page(State(ctx): State<Context>, auth_session: AuthSession<Context>) -> Response {
+pub async fn home_page(
+    State(provider): State<Provider>,
+    auth_session: AuthSession<Provider>,
+) -> Response {
     if let Some(user) = auth_session.user {
-        let mut db = ctx.db_pool.get().unwrap();
+        let mut db = provider.db_pool.get().unwrap();
         let projects: Vec<Project> =
             permissions::query::accessible_projects(&mut db, &user.id).unwrap();
 
@@ -16,7 +19,7 @@ pub async fn home_page(State(ctx): State<Context>, auth_session: AuthSession<Con
             projects => projects,
         };
 
-        ctx.render_resp("home.html", values)
+        provider.render_resp("home.html", values)
     } else {
         Redirect::to("/login").into_response()
     }

src/handler/login.rs

@@ -10,23 +10,23 @@ pub struct LoginTemplate {
 }
 
 pub async fn login_page(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
 ) -> Response {
     if auth_session.user.is_some() {
         return Redirect::to("/").into_response();
     }
 
-    render_login_page(&ctx, "", "", None)
+    render_login_page(&provider, "", "", None)
 }
 
 fn render_login_page(
-    ctx: &Context,
+    provider: &Provider,
     username: &str,
     password: &str,
     error: Option<&'static str>,
 ) -> Response {
-    ctx.render_resp(
+    provider.render_resp(
         "login.html",
         context! {
             username => username,
@@ -39,8 +39,8 @@ fn render_login_page(
 const LOGIN_ERROR_MSG: &str = "Invalid username or password";
 
 pub async fn login_submit(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    mut auth_session: AuthSession<Context>,
+    mut auth_session: AuthSession<Provider>,
     Form(creds): Form<Credentials>,
 ) -> Response {
     match auth_session.authenticate(creds).await {
@@ -52,7 +52,7 @@ pub async fn login_submit(
 
             Redirect::to("/").into_response()
         }
-        Ok(None) => render_login_page(&ctx, "", "", Some(LOGIN_ERROR_MSG)),
+        Ok(None) => render_login_page(&provider, "", "", Some(LOGIN_ERROR_MSG)),
         Err(err) => {
             error!(?err, "error while authenticating user");
             internal_server_error()
@@ -60,62 +60,10 @@ pub async fn login_submit(
     }
 }
 
-pub async fn logout(mut auth_session: AuthSession<Context>) -> Response {
+pub async fn logout(mut auth_session: AuthSession<Provider>) -> Response {
     if let Err(err) = auth_session.logout().await {
         error!(?err, "error while logging out user");
     }
 
     Redirect::to("/login").into_response()
 }
-
-//const INVALID_LOGIN_MESSAGE: &str = "Invalid username/password, please try again.";
-//
-//pub async fn login_submission(
-//    request: HttpRequest,
-//    context: web::Data<Context>,
-//    form: web::Form<LoginForm>,
-//) -> impl Responder {
-//    let mut conn = match context.pool.get() {
-//        Ok(conn) => conn,
-//        Err(_) => return internal_server_error(),
-//    };
-//
-//    let user = match fetch_user_by_username(&mut conn, &form.username) {
-//        Ok(Some(user)) => user,
-//        Ok(None) => {
-//            return LoginTemplate {
-//                username: form.username.clone(),
-//                password: String::new(),
-//                error: Some(INVALID_LOGIN_MESSAGE.into()),
-//            }
-//            .to_response()
-//        }
-//        Err(_) => return internal_server_error(),
-//    };
-//
-//    if !user.check_password(&form.password) {
-//        return LoginTemplate {
-//            username: form.username.clone(),
-//            password: String::new(),
-//            error: Some(INVALID_LOGIN_MESSAGE.into()),
-//        }
-//        .to_response();
-//    }
-//
-//    if Identity::login(&request.extensions(), user.id.to_string()).is_err() {
-//        return internal_server_error();
-//    }
-//
-//    return HttpResponse::Found()
-//        .append_header(("Location", "/"))
-//        .finish();
-//}
-//
-//#[get("/logout")]
-//pub async fn logout(user: Option<Identity>) -> impl Responder {
-//    if let Some(user) = user {
-//        user.logout();
-//    }
-//
-//    redirect_to_login()
-//}

src/handler/projects.rs

@@ -15,18 +15,18 @@ use crate::{
 use super::internal_error;
 
 pub async fn projects_page(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
 ) -> Response {
     if let Some(user) = auth_session.user {
-        render_projects_page(ctx, user).await
+        render_projects_page(provider, user).await
     } else {
         Redirect::to("/login").into_response()
     }
 }
 
-async fn render_projects_page(ctx: Context, user: User) -> Response {
+async fn render_projects_page(provider: Provider, user: User) -> Response {
-    let mut db = match ctx.db_pool.get() {
+    let mut db = match provider.db_pool.get() {
         Ok(db) => db,
         Err(err) => {
             error!(?err, "failed to get db connection");
@@ -40,12 +40,12 @@ async fn render_projects_page(ctx: Context, user: User) -> Response {
         projects => projects,
     };
 
-    ctx.render_resp("projects/list_projects.html", values)
+    provider.render_resp("projects/list_projects.html", values)
 }
 
 pub async fn create_project_page(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
 ) -> Response {
     let user = match auth_session.user {
         Some(user) => user,
@@ -55,7 +55,7 @@ pub async fn create_project_page(
     let values = context! {
         user => user,
     };
-    ctx.render_resp("projects/create_project.html", values)
+    provider.render_resp("projects/create_project.html", values)
 }
 
 #[derive(Debug, Deserialize)]
@@ -66,11 +66,11 @@ pub struct CreateProjectSubmission {
 }
 
 pub async fn create_project_submit(
-    State(ctx): State<Context>,
+    State(provider): State<Provider>,
-    auth_session: AuthSession<Context>,
+    auth_session: AuthSession<Provider>,
     form: Form<CreateProjectSubmission>,
 ) -> Result<Response, (StatusCode, String)> {
-    let mut db = ctx.db_pool.get().map_err(internal_error)?;
+    let mut db = provider.db_pool.get().map_err(internal_error)?;
 
     let user = match auth_session.user {
         Some(user) => user,

src/lib.rs

@@ -1,5 +1,4 @@
 pub mod config;
-pub mod context;
 pub mod db;
 pub mod handler;
 pub mod logging;
@@ -7,6 +6,7 @@ pub mod models;
 pub mod password;
 pub mod permissions;
 pub mod prelude;
+pub mod provider;
 pub mod schema;
 pub mod serialize;
 pub mod server;

src/prelude.rs

@@ -1,4 +1,4 @@
-pub use crate::context::Context;
+pub use crate::provider::Provider;
 pub use axum::extract::State;
 pub use axum::response::{Html, IntoResponse, Response};
 pub use minijinja::context;

src/provider.rs

@@ -3,27 +3,40 @@ use diesel::{
     SqliteConnection,
 };
 use std::sync::Arc;
+use thiserror::Error;
 
 use minijinja_autoreload::AutoReloader;
 
 use crate::{handler::internal_server_error, prelude::*};
 
 pub type ConnectionPool = Pool<ConnectionManager<SqliteConnection>>;
+pub type PooledConnection = diesel::r2d2::PooledConnection<ConnectionManager<SqliteConnection>>;
 
 #[derive(Clone)]
-pub struct Context {
+pub struct Provider {
     pub db_pool: ConnectionPool,
     template_loader: Arc<AutoReloader>,
 }
 
-impl Context {
+#[derive(Error, Debug)]
-    pub fn new(db: ConnectionPool, template_loader: AutoReloader) -> Context {
+pub enum ProviderError {
-        Context {
+    #[error("Error while using the connection pool: {0}")]
+    R2D2Error(#[from] diesel::r2d2::PoolError),
+}
+
+impl Provider {
+    pub fn new(db: ConnectionPool, template_loader: AutoReloader) -> Provider {
+        Provider {
             db_pool: db,
             template_loader: Arc::new(template_loader),
         }
     }
 
+    pub fn db_conn(&self) -> Result<PooledConnection, ProviderError> {
+        let conn = self.db_pool.get()?;
+        Ok(conn)
+    }
+
     pub fn render<T: Serialize>(&self, path: &str, data: T) -> anyhow::Result<String> {
         // TODO: more graceful handling of the potential errors here; this should not use anyhow
         let env = self.template_loader.acquire_env().unwrap();

src/server.rs

@@ -18,7 +18,7 @@ use tracing::Level;
 
 use crate::{
     config::CommandLineOptions,
-    context::Context,
+    provider::Provider,
     db,
     handler::{
         documents::{
@@ -52,9 +52,9 @@ pub async fn run() -> Result<()> {
 
     let session_layer = create_session_manager_layer().await?;
 
-    let context = Context::new(db_pool, template_loader);
+    let provider = Provider::new(db_pool, template_loader);
 
-    let auth_backend = context.clone();
+    let auth_backend = provider.clone();
     let auth_layer = AuthManagerLayerBuilder::new(auth_backend, session_layer.clone()).build();
 
     let trace_layer = TraceLayer::new_for_http()
@@ -78,7 +78,7 @@ pub async fn run() -> Result<()> {
         .layer(trace_layer)
         .layer(session_layer)
         .layer(auth_layer)
-        .with_state(context);
+        .with_state(provider);
 
     let listener = tokio::net::TcpListener::bind("0.0.0.0:8080").await.unwrap();
     axum::serve(listener, app).await.unwrap();

src/session.rs

@@ -26,7 +26,7 @@ impl AuthUser for models::users::User {
 }
 
 #[async_trait]
-impl AuthnBackend for Context {
+impl AuthnBackend for Provider {
     type User = models::users::User;
     type Credentials = Credentials;
     type Error = DbError;