feat: Endpoint for server info (#835)

* feat: provide endpoint so that client can detect server information

* feat: add server info endpoint

libs/client-api/src/http.rs

@@ -1,6 +1,8 @@
 use crate::notify::{ClientToken, TokenStateReceiver};
 use app_error::AppError;
+use app_error::ErrorCode;
 use client_api_entity::auth_dto::DeleteUserQuery;
+use client_api_entity::server_info_dto::ServerInfoResponseItem;
 use client_api_entity::workspace_dto::FolderView;
 use client_api_entity::workspace_dto::QueryWorkspaceFolder;
 use client_api_entity::workspace_dto::QueryWorkspaceParam;
@@ -11,6 +13,7 @@ use gotrue::grant::PasswordGrant;
 use gotrue::grant::{Grant, RefreshTokenGrant};
 use gotrue::params::MagicLinkParams;
 use gotrue::params::{AdminUserParams, GenerateLinkParams};
+use reqwest::StatusCode;
 use shared_entity::dto::workspace_dto::{CreateWorkspaceParam, PatchWorkspaceParam};
 use std::fmt::{Display, Formatter};
 #[cfg(feature = "enable_brotli")]
@@ -967,6 +970,26 @@ impl Client {
       .into_data()
   }
 
+  #[instrument(level = "info", skip_all)]
+  pub async fn get_server_info(&self) -> Result<ServerInfoResponseItem, AppResponseError> {
+    let url = format!("{}/api/server", self.base_url);
+    let resp = self
+      .http_client_with_auth(Method::GET, &url)
+      .await?
+      .send()
+      .await?;
+    if resp.status() == StatusCode::NOT_FOUND {
+      Err(AppResponseError::new(
+        ErrorCode::Unhandled,
+        "server info not implemented",
+      ))
+    } else {
+      AppResponse::<ServerInfoResponseItem>::from_response(resp)
+        .await?
+        .into_data()
+    }
+  }
+
   // Refresh token if given timestamp is close to the token expiration time
   pub async fn refresh_if_expired(&self, ts: i64, reason: &str) -> Result<(), AppResponseError> {
     let expires_at = self.token_expires_at()?;

libs/shared-entity/Cargo.toml

@@ -20,11 +20,18 @@ database-entity.workspace = true
 collab-entity = { workspace = true }
 app-error = { workspace = true }
 chrono = "0.4.31"
-appflowy-ai-client = { workspace = true, default-features = false, features = ["dto"] }
+appflowy-ai-client = { workspace = true, default-features = false, features = [
+    "dto",
+] }
 pin-project = "1.1.5"
 
-actix-web = { version = "4.4.1", default-features = false, features = ["http2"], optional = true }
-validator = { version = "0.16", features = ["validator_derive", "derive"], optional = true }
+actix-web = { version = "4.4.1", default-features = false, features = [
+    "http2",
+], optional = true }
+validator = { version = "0.16", features = [
+    "validator_derive",
+    "derive",
+], optional = true }
 futures = "0.3.30"
 bytes = "1.6.0"
 log = "0.4.21"

libs/shared-entity/src/dto/mod.rs

@@ -5,4 +5,5 @@ pub mod billing_dto;
 pub mod history_dto;
 pub mod publish_dto;
 pub mod search_dto;
+pub mod server_info_dto;
 pub mod workspace_dto;

libs/shared-entity/src/dto/server_info_dto.rs

@@ -0,0 +1,13 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
+pub enum SupportedClientFeatures {
+  // Supports Collab Params serialization using Protobuf
+  CollabParamsProtobuf,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct ServerInfoResponseItem {
+  pub supported_client_features: Vec<SupportedClientFeatures>,
+  pub minimum_supported_client_version: Option<String>,
+}

src/api/mod.rs

@@ -6,6 +6,7 @@ pub mod access_request;
 pub mod history;
 pub mod metrics;
 pub mod search;
+pub mod server_info;
 pub mod template;
 pub mod user;
 pub mod util;

src/api/server_info.rs

@@ -0,0 +1,18 @@
+use actix_web::{web, Scope};
+use shared_entity::dto::server_info_dto::ServerInfoResponseItem;
+use shared_entity::response::{AppResponse, JsonAppResponse};
+
+pub fn server_info_scope() -> Scope {
+  web::scope("/api/server").service(web::resource("").route(web::get().to(server_info_handler)))
+}
+
+async fn server_info_handler() -> actix_web::Result<JsonAppResponse<ServerInfoResponseItem>> {
+  Ok(
+    AppResponse::Ok()
+      .with_data(ServerInfoResponseItem {
+        supported_client_features: vec![],
+        minimum_supported_client_version: None,
+      })
+      .into(),
+  )
+}

src/application.rs

@@ -49,6 +49,7 @@ use crate::api::file_storage::file_storage_scope;
 use crate::api::history::history_scope;
 use crate::api::metrics::metrics_scope;
 use crate::api::search::search_scope;
+use crate::api::server_info::server_info_scope;
 use crate::api::template::template_scope;
 use crate::api::user::user_scope;
 use crate::api::workspace::{collab_scope, workspace_scope};
@@ -159,6 +160,7 @@ pub async fn run_actix_server(
       // .wrap(DecryptPayloadMiddleware)
       .wrap(access_control.clone())
       .wrap(RequestIdMiddleware)
+      .service(server_info_scope())
       .service(user_scope())
       .service(workspace_scope())
       .service(collab_scope())

tests/main.rs

@@ -4,6 +4,7 @@ mod collab_history;
 mod file_test;
 mod gotrue;
 mod search;
+mod server_info;
 mod sql_test;
 mod user;
 mod websocket;

tests/server_info/info.rs

@@ -0,0 +1,9 @@
+use client_api_test::generate_unique_registered_user_client;
+
+#[tokio::test]
+async fn test_get_server_info() {
+  let (c, _) = generate_unique_registered_user_client().await;
+  c.get_server_info()
+    .await
+    .expect("Failed to get server info");
+}

tests/server_info/mod.rs

@@ -0,0 +1 @@
+mod info;