Working user signup, looks ugly.

Still no login or sessions, though.

Cargo.lock

@@ -2447,6 +2447,12 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "urlencoding"
+version = "2.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8db7427f936968176eaa7cdf81b7f98b980b18495ec28f1b5791ac3bfe3eea9"
+
 [[package]]
 name = "uuid"
 version = "0.8.2"
@@ -2793,6 +2799,7 @@ dependencies = [
  "tracing",
  "tracing-subscriber",
  "unicode-segmentation",
+ "urlencoding",
  "uuid 1.3.1",
 ]
 

Cargo.toml

@@ -23,3 +23,4 @@ justerror = "1.1.0"
 password-hash = { version = "0.5.0", features = ["std", "getrandom"] }
 axum-login = { version = "0.5.0", features = ["sqlite", "sqlx"] }
 unicode-segmentation = "1.10.1"
+urlencoding = "2.1.2"

src/lib.rs

@@ -5,3 +5,5 @@ pub mod db;
 pub mod handlers;
 pub(crate) mod templates;
 pub mod users;
+
+//pub type Db: axum::

src/main.rs

@@ -2,7 +2,10 @@ use std::net::SocketAddr;
 
 use axum::{routing::get, Router};
 use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
-use witch_watch::{db, handlers};
+use witch_watch::{
+    db,
+    users::{get_create_user, post_create_user},
+};
 
 #[tokio::main]
 async fn main() {
@@ -16,17 +19,9 @@ async fn main() {
 
     let pool = db::get_pool().await;
 
-    let _ = witch_watch::users::create_user("joe", &None, &None, &[], &pool)
-        .await
-        .unwrap();
-
     // build our application with some routes
-    use handlers::*;
     let app = Router::new()
-        .route(
-            "/",
-            get(using_connection_pool_extractor).post(using_connection_extractor),
-        )
+        .route("/signup", get(get_create_user).post(post_create_user))
         .with_state(pool);
 
     tracing::debug!("binding to 0.0.0.0:3000");

src/templates.rs

@@ -1,6 +1,7 @@
 use askama::Template;
+use serde::Deserialize;
 
-#[derive(Template)]
+#[derive(Debug, Default, Template, Deserialize)]
 #[template(path = "signup.html")]
 pub struct CreateUser {
     pub username: String,

src/users.rs

@@ -2,11 +2,19 @@ use argon2::{
     password_hash::{rand_core::OsRng, PasswordHash, PasswordHasher, PasswordVerifier, SaltString},
     Argon2,
 };
+use askama::Template;
+use axum::{
+    extract::{Form, Path, State},
+    http::StatusCode,
+    response::IntoResponse,
+};
 use sqlx::{error::DatabaseError, Sqlite, SqlitePool};
 use tracing::log::log;
 use unicode_segmentation::UnicodeSegmentation;
 use uuid::Uuid;
 
+use crate::templates::CreateUser;
+
 const CREATE_QUERY: &str =
     "insert into witches (id, username, displayname, email, pwhash) values ($1, $2, $3, $4, $5)";
 
@@ -38,20 +46,69 @@ impl From<DbUser> for User {
     }
 }
 
-pub async fn create_user(
-    username: &str,
-    displayname: &Option<String>,
-    email: &Option<String>,
-    password: &[u8],
-    pool: &SqlitePool,
-) -> Result<User, CreateUserError> {
+pub async fn get_create_user() -> CreateUser {
+    CreateUser::default()
+}
+
+#[axum::debug_handler]
+pub async fn post_create_user(
+    State(pool): State<sqlx::Pool<Sqlite>>,
+    Form(signup): Form<CreateUser>,
+) -> Result<(), CreateUserError> {
+    let username = &signup.username;
+    let displayname = &signup.displayname;
+    let email = &signup.email;
+    let password = &signup.password;
+    let verify = &signup.pw_verify;
     let username = username.trim();
+
     let name_len = username.graphemes(true).size_hint().1.unwrap();
     // we are not ascii exclusivists around here
     if !(1..=20).contains(&name_len) {
         return Err(CreateUserErrorKind::BadUsername.into());
     }
 
+    if password != verify {
+        return Err(CreateUserErrorKind::PasswordMismatch.into());
+    }
+
+    let password = urlencoding::decode(password)
+        .map_err(|_| CreateUserErrorKind::BadPassword)?
+        .to_string();
+    let password = password.as_bytes();
+
+    let displayname = if let Some(dn) = displayname {
+        let dn = urlencoding::decode(dn)
+            .map_err(|_| CreateUserErrorKind::BadDisplayname)?
+            .to_string();
+        Some(dn)
+    } else {
+        None
+    };
+    let displayname = &displayname;
+
+    // TODO(2023-05-17): validate email
+    let email = if let Some(email) = email {
+        let email = urlencoding::decode(email)
+            .map_err(|_| CreateUserErrorKind::BadEmail)?
+            .to_string();
+        Some(email)
+    } else {
+        None
+    };
+    let email = &email;
+
+    let _ = create_user(username, displayname, email, password, &pool).await?;
+    Ok(())
+}
+
+async fn create_user(
+    username: &str,
+    displayname: &Option<String>,
+    email: &Option<String>,
+    password: &[u8],
+    pool: &SqlitePool,
+) -> Result<User, CreateUserError> {
     // Argon2 with default params (Argon2id v19)
     let argon2 = Argon2::default();
     let salt = SaltString::generate(&mut OsRng);
@@ -103,6 +160,17 @@ pub async fn create_user(
 #[non_exhaustive]
 pub struct CreateUserError(#[from] CreateUserErrorKind);
 
+impl IntoResponse for CreateUserError {
+    fn into_response(self) -> askama_axum::Response {
+        match self.0 {
+            CreateUserErrorKind::UnknownDBError => {
+                (StatusCode::INTERNAL_SERVER_ERROR, format!("{self}")).into_response()
+            }
+            _ => (StatusCode::BAD_REQUEST, format!("{self}")).into_response(),
+        }
+    }
+}
+
 #[Error]
 #[non_exhaustive]
 pub enum CreateUserErrorKind {
@@ -110,6 +178,9 @@ pub enum CreateUserErrorKind {
     #[error(desc = "Usernames must be between 1 and 20 non-whitespace characters long")]
     BadUsername,
     PasswordMismatch,
+    BadPassword,
+    BadDisplayname,
+    BadEmail,
     MissingFields,
     UnknownDBError,
 }

templates/base.html

@@ -12,7 +12,7 @@
       {% block content %}{% endblock %}
     </div>
     <div id="footer">
-      {% block footer
+      {% block footer %}{% endblock %}
     </div>
   </body>
 </html>

templates/signup.html

@@ -4,4 +4,18 @@
 
 {% block content %}
 
+<form action="/signup" enctype="application/x-www-form-urlencoded" method="post">
+    <label for="username">Username</label>
+    <input type="text" name="username" id="username" minlength="1" maxlength="20" required>
+    <label for="displayname">Displayname (optional)</label>
+    <input type="text" name="displayname" id="displayname">
+    <label for="email">Email (optional)</label>
+    <input type="text" name="email">
+    <label for="password">Password</label>
+    <input type="password" name="password" id="password" required>
+    <label for="confirm_password">Confirm Password</label>
+    <input type="password" name="pw_verify" id="pw_verify" required>
+    <input type="submit" value="Signup">
+</form>
+
 {% endblock %}