Set up the authentication filter

server/src/authentication.rs

@@ -140,7 +140,7 @@ impl FromSql for Username {
     }
 }
 
-pub trait AuthenticationDB {
+pub trait AuthenticationDB: Send + Sync {
     fn create_user(&mut self, username: Username) -> AppResult<UserId, AuthenticationError>;
 
     fn create_invitation(&mut self, user: UserId) -> AppResult<Invitation, AuthenticationError>;

server/src/main.rs

@@ -6,11 +6,43 @@ use std::{
 use warp::Filter;
 
 mod authentication;
-use authentication::{AuthenticationDB, MemoryAuth, Username};
+use authentication::{AuthenticationDB, AuthenticationError, MemoryAuth, UserId, Username};
 
 mod database;
 mod errors;
 
+#[derive(Debug)]
+struct AuthenticationRefused;
+impl warp::reject::Reject for AuthenticationRefused {}
+
+fn with_authentication(
+    auth_ctx: Arc<RwLock<impl AuthenticationDB>>,
+) -> impl Filter<Extract = ((Username, UserId),), Error = warp::Rejection> + Clone {
+    let auth_ctx = auth_ctx.clone();
+    warp::header("authentication").and_then({
+        let auth_ctx = auth_ctx.clone();
+        move |auth_header: String| {
+            let auth_ctx = auth_ctx.clone();
+            async move {
+                if auth_header.starts_with("Basic ") {
+                    let username = auth_header.split(" ").skip(1).collect::<String>();
+                    match auth_ctx
+                        .read()
+                        .unwrap()
+                        .get_user_id(Username::from(username.as_str()))
+                    {
+                        Ok(Ok(userid)) => Ok((Username::from(username.as_str()), userid)),
+                        Ok(Err(_)) => Err(warp::reject::custom(AuthenticationRefused)),
+                        Err(err) => panic!("{}", err),
+                    }
+                } else {
+                    Err(warp::reject::custom(AuthenticationRefused))
+                }
+            }
+        }
+    })
+}
+
 #[derive(Serialize)]
 struct ErrorResponse {
     error: String,
@@ -26,52 +58,52 @@ struct MakeUserResponse {
     userid: String,
 }
 
+fn make_user(
+    auth_ctx: Arc<RwLock<impl AuthenticationDB>>,
+) -> impl Filter<Extract = impl warp::Reply, Error = warp::Rejection> + Clone {
+    warp::path!("api" / "v1" / "users")
+        .and(warp::put())
+        .and(warp::body::json())
+        .map(move |params: MakeUserParameters| {
+            let mut auth_ctx = auth_ctx.write().unwrap();
+            match (*auth_ctx).create_user(Username::from(params.username.as_str())) {
+                Ok(Ok(userid)) => warp::reply::json(&MakeUserResponse {
+                    userid: String::from(userid),
+                }),
+                Ok(auth_error) => warp::reply::json(&ErrorResponse {
+                    error: format!("{:?}", auth_error),
+                }),
+                Err(err) => panic!("{}", err),
+            }
+        })
+}
+
+fn list_users(
+    auth_ctx: Arc<RwLock<impl AuthenticationDB>>,
+) -> impl Filter<Extract = impl warp::Reply, Error = warp::Rejection> + Clone {
+    warp::path!("api" / "v1" / "users")
+        .and(warp::get())
+        .map(move || {
+            let auth_ctx = auth_ctx.read().unwrap();
+            match (*auth_ctx).list_users() {
+                Ok(Ok(users)) => warp::reply::json(
+                    &users
+                        .iter()
+                        .map(|u| String::from(u))
+                        .collect::<Vec<String>>(),
+                ),
+                Ok(auth_error) => warp::reply::json(&ErrorResponse {
+                    error: format!("{:?}", auth_error),
+                }),
+                Err(err) => panic!("{}", err),
+            }
+        })
+}
+
 #[tokio::main]
 pub async fn main() {
     let auth_ctx: Arc<RwLock<MemoryAuth>> = Arc::new(RwLock::new(Default::default()));
 
-    let make_user = {
-        let auth_ctx = auth_ctx.clone();
-        warp::path!("api" / "v1" / "user")
-            .and(warp::put())
-            .and(warp::body::json())
-            .map(move |params: MakeUserParameters| {
-                let mut auth_ctx = auth_ctx.write().unwrap();
-                println!("{:?}", *auth_ctx);
-                match (*auth_ctx).create_user(Username::from(params.username.as_str())) {
-                    Ok(Ok(userid)) => warp::reply::json(&MakeUserResponse {
-                        userid: String::from(userid),
-                    }),
-                    Ok(auth_error) => warp::reply::json(&ErrorResponse {
-                        error: format!("{:?}", auth_error),
-                    }),
-                    Err(err) => panic!("{}", err),
-                }
-            })
-    };
-
-    let list_users = {
-        let auth_ctx = auth_ctx.clone();
-        warp::path!("api" / "v1" / "user")
-            .and(warp::get())
-            .map(move || {
-                let auth_ctx = auth_ctx.read().unwrap();
-                println!("{:?}", *auth_ctx);
-                match (*auth_ctx).list_users() {
-                    Ok(Ok(users)) => warp::reply::json(
-                        &users
-                            .iter()
-                            .map(|u| String::from(u))
-                            .collect::<Vec<String>>(),
-                    ),
-                    Ok(auth_error) => warp::reply::json(&ErrorResponse {
-                        error: format!("{:?}", auth_error),
-                    }),
-                    Err(err) => panic!("{}", err),
-                }
-            })
-    };
-
     let echo_unauthenticated = warp::path!("api" / "v1" / "echo" / String).map(|param: String| {
         println!("param: {}", param);
         warp::reply::json(&vec!["unauthenticated", param.as_str()])
@@ -85,15 +117,16 @@ pub async fn main() {
     */
 
     let echo_authenticated = warp::path!("api" / "v1" / "echo" / String)
-        .and(warp::header::<String>("authentication"))
-        .map(|auth: String, param: String| {
-            println!("auth: {}", auth);
+        .and(with_authentication(auth_ctx.clone()))
+        .map(|param: String, (username, userid)| {
+            println!("param: {:?}", username);
+            println!("param: {:?}", userid);
             println!("param: {}", param);
             warp::reply::json(&vec!["authed", param.as_str()])
         });
 
-    let filter = list_users
-        .or(make_user)
+    let filter = list_users(auth_ctx.clone())
+        .or(make_user(auth_ctx.clone()))
         .or(echo_authenticated)
         .or(echo_unauthenticated);