From bb31954b22d6e94ea0bb7677bb5c9eb7eb7005f6 Mon Sep 17 00:00:00 2001
From: Pierre Hubert <pierre.git@communiquons.org>
Date: Sat, 2 Sep 2023 10:28:08 +0200
Subject: [PATCH] Add basic server config

---
 virtweb_backend/Cargo.lock                    |  1 +
 virtweb_backend/Cargo.toml                    |  3 +-
 .../src/controllers/server_controller.rs      | 15 +++++++++
 virtweb_backend/src/extractors.rs             |  1 +
 .../src/extractors/local_auth_extractor.rs    | 33 +++++++++++++++++++
 virtweb_backend/src/lib.rs                    |  1 +
 virtweb_backend/src/main.rs                   |  4 +++
 7 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 virtweb_backend/src/extractors.rs
 create mode 100644 virtweb_backend/src/extractors/local_auth_extractor.rs

diff --git a/virtweb_backend/Cargo.lock b/virtweb_backend/Cargo.lock
index ba6f0e3..ca53923 100644
--- a/virtweb_backend/Cargo.lock
+++ b/virtweb_backend/Cargo.lock
@@ -1856,6 +1856,7 @@ dependencies = [
  "actix-web",
  "clap",
  "env_logger",
+ "futures-util",
  "lazy_static",
  "light-openid",
  "log",
diff --git a/virtweb_backend/Cargo.toml b/virtweb_backend/Cargo.toml
index 7f7cf77..fc0d71d 100644
--- a/virtweb_backend/Cargo.toml
+++ b/virtweb_backend/Cargo.toml
@@ -15,4 +15,5 @@ actix-web = "4"
 actix-remote-ip = "0.1.0"
 actix-session = { version = "0.7.2", features = ["cookie-session"] }
 actix-identity = "0.5.2"
-serde = { version = "1.0.175", features = ["derive"] }
\ No newline at end of file
+serde = { version = "1.0.175", features = ["derive"] }
+futures-util = "0.3.28"
\ No newline at end of file
diff --git a/virtweb_backend/src/controllers/server_controller.rs b/virtweb_backend/src/controllers/server_controller.rs
index 8f565ea..ea2aad8 100644
--- a/virtweb_backend/src/controllers/server_controller.rs
+++ b/virtweb_backend/src/controllers/server_controller.rs
@@ -1,5 +1,20 @@
+use crate::app_config::AppConfig;
+use crate::extractors::local_auth_extractor::LocalAuthEnabled;
 use actix_web::{HttpResponse, Responder};
 
 pub async fn root_index() -> impl Responder {
     HttpResponse::Ok().body("Hello world!")
 }
+
+#[derive(serde::Serialize)]
+struct StaticConfig {
+    local_auth_enabled: bool,
+    oidc_auth_enabled: bool,
+}
+
+pub async fn static_config(local_auth: LocalAuthEnabled) -> impl Responder {
+    HttpResponse::Ok().json(StaticConfig {
+        local_auth_enabled: *local_auth,
+        oidc_auth_enabled: !AppConfig::get().disable_oidc,
+    })
+}
diff --git a/virtweb_backend/src/extractors.rs b/virtweb_backend/src/extractors.rs
new file mode 100644
index 0000000..c472199
--- /dev/null
+++ b/virtweb_backend/src/extractors.rs
@@ -0,0 +1 @@
+pub mod local_auth_extractor;
diff --git a/virtweb_backend/src/extractors/local_auth_extractor.rs b/virtweb_backend/src/extractors/local_auth_extractor.rs
new file mode 100644
index 0000000..cc3fbbb
--- /dev/null
+++ b/virtweb_backend/src/extractors/local_auth_extractor.rs
@@ -0,0 +1,33 @@
+use crate::app_config::AppConfig;
+use actix_web::dev::Payload;
+use actix_web::{Error, FromRequest, HttpRequest};
+use futures_util::future::{ready, Ready};
+use std::ops::Deref;
+
+#[derive(Debug, Copy, Clone, PartialEq)]
+pub struct LocalAuthEnabled(bool);
+
+impl Deref for LocalAuthEnabled {
+    type Target = bool;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl FromRequest for LocalAuthEnabled {
+    type Error = Error;
+    type Future = Ready<Result<Self, Error>>;
+
+    fn from_request(req: &HttpRequest, _payload: &mut Payload) -> Self::Future {
+        if AppConfig::get().disable_local_auth {
+            return ready(Ok(Self(false)));
+        }
+
+        let has_disable_local_auth_header = req
+            .headers()
+            .get(&AppConfig::get().disable_auth_header_token)
+            .is_some();
+        return ready(Ok(Self(!has_disable_local_auth_header)));
+    }
+}
diff --git a/virtweb_backend/src/lib.rs b/virtweb_backend/src/lib.rs
index 11c3b98..fd23042 100644
--- a/virtweb_backend/src/lib.rs
+++ b/virtweb_backend/src/lib.rs
@@ -1,3 +1,4 @@
 pub mod app_config;
 pub mod constants;
 pub mod controllers;
+pub mod extractors;
diff --git a/virtweb_backend/src/main.rs b/virtweb_backend/src/main.rs
index 4c2df23..12c9378 100644
--- a/virtweb_backend/src/main.rs
+++ b/virtweb_backend/src/main.rs
@@ -43,6 +43,10 @@ async fn main() -> std::io::Result<()> {
                 proxy: AppConfig::get().proxy_ip.clone(),
             }))
             .route("/", web::get().to(server_controller::root_index))
+            .route(
+                "/api/server/static_config",
+                web::get().to(server_controller::static_config),
+            )
     })
     .bind(&AppConfig::get().listen_address)?
     .run()