Fixed redirect on success, removed DbUser struct.

src/main.rs

@@ -4,7 +4,7 @@ use axum::{routing::get, Router};
 use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
 use witch_watch::{
     db,
-    users::{get_create_user, get_signup_success, post_create_user},
+    users::{get_create_user, handle_signup_success, post_create_user},
 };
 
 #[tokio::main]
@@ -23,8 +23,8 @@ async fn main() {
     let app = Router::new()
         .route("/signup", get(get_create_user).post(post_create_user))
         .route(
-            "/signup_success",
-            get(get_signup_success).post(get_signup_success),
+            "/signup_success/:id",
+            get(handle_signup_success).post(handle_signup_success),
         )
         .with_state(pool);
 

src/users.rs

@@ -1,4 +1,4 @@
-use std::{array, fmt::Display, ops::Deref};
+use std::fmt::Display;
 
 use argon2::{
     password_hash::{rand_core::OsRng, PasswordHash, PasswordHasher, PasswordVerifier, SaltString},
@@ -6,7 +6,7 @@ use argon2::{
 };
 use askama::Template;
 use axum::{
-    extract::{Form, State},
+    extract::{Form, Path, State},
     http::StatusCode,
     response::{IntoResponse, Response},
 };
@@ -21,8 +21,6 @@ const CREATE_QUERY: &str =
 
 const ID_QUERY: &str = "select * from witches where id = $1";
 
-const WITCH_SUCCESS_HEADER: &str = "X-Witch-Success";
-
 #[derive(Debug, Default, Clone, PartialEq, Eq)]
 pub struct User {
     id: Uuid,
@@ -45,16 +43,6 @@ impl Display for User {
     }
 }
 
-#[derive(Debug, Default, Clone, sqlx::Encode)]
-pub(crate) struct DbUser {
-    id: Uuid,
-    username: String,
-    displayname: Option<String>,
-    email: Option<String>,
-    last_seen: Option<i64>,
-    pwhash: String,
-}
-
 #[derive(Debug, Clone, Template)]
 #[template(path = "signup_success.html")]
 pub struct CreateUserSuccess(User);
@@ -80,18 +68,6 @@ impl sqlx::FromRow<'_, SqliteRow> for User {
     }
 }
 
-impl From<DbUser> for User {
-    fn from(dbu: DbUser) -> Self {
-        User {
-            id: dbu.id,
-            username: dbu.username,
-            displayname: dbu.displayname,
-            email: dbu.email,
-            last_seen: dbu.last_seen,
-        }
-    }
-}
-
 /// Get Handler: displays the form to create a user
 pub async fn get_create_user() -> CreateUser {
     CreateUser::default()
@@ -117,6 +93,12 @@ pub async fn post_create_user(
         return Err(CreateUserErrorKind::BadUsername.into());
     }
 
+    if let Some(ref dn) = displayname {
+        if dn.len() > 50 {
+            return Err(CreateUserErrorKind::BadDisplayname.into());
+        }
+    }
+
     if password != verify {
         return Err(CreateUserErrorKind::PasswordMismatch.into());
     }
@@ -149,31 +131,28 @@ pub async fn post_create_user(
 
     let user = create_user(username, displayname, email, password, &pool).await?;
     tracing::debug!("created {user:?}");
-    let mut resp = axum::response::Redirect::temporary("/signup_success").into_response();
-    resp.headers_mut().append(
-        WITCH_SUCCESS_HEADER,
-        user.id.simple().to_string().parse().unwrap(),
-    );
+    let id = user.id.simple().to_string();
+    let location = format!("/signup_success/{id}");
+
+    let resp = axum::response::Redirect::temporary(&location).into_response();
 
     Ok(resp)
 }
 
-/// Get handler for successful signup; only meaningful
-pub async fn get_signup_success(
-    headers: axum::http::HeaderMap,
+/// Get handler for successful signup
+pub async fn handle_signup_success(
+    Path(id): Path<String>,
     State(pool): State<SqlitePool>,
 ) -> Response {
-    let user = if let Some(id) = headers.get(WITCH_SUCCESS_HEADER) {
-        let id = id.to_str().unwrap();
-        let id = Uuid::try_parse(id).unwrap_or_default();
-        let id_bytes = id.as_bytes();
+    let user: User = {
+        let id = id;
+        let id = Uuid::try_parse(&id).unwrap_or_default();
+        let id_bytes = id.to_bytes_le();
         sqlx::query_as(ID_QUERY)
             .bind(id_bytes.as_slice())
             .fetch_one(&pool)
             .await
             .unwrap_or_default()
-    } else {
-        User::default()
     };
 
     let mut resp = CreateUserSuccess(user.clone()).into_response();