Web dashboard step 1: migration, sessions, users CLI, public site

Migration 0004 (users, sessions, config_changes, profile_versions, jobs,
rating_events.user_id, runs.report_json, issues.issue_json), the issue
snapshot writer and loader, the web module skeleton with layout and static
assets, axum-login/tower-sessions over a sqlx session store, password-auth
users with a CLI, the login throttle, the origin check, security headers,
and the public issue pages, archive, Atom feed and robots.txt.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHyYupFdBiR4VfoUM7NjSM
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thalladaandClaude Fable 5.1 committed 2026-09-03 04:38:22 +00:00
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use std::collections::HashSet;
use std::str::FromStr;
use askama::Template;
use async_trait::async_trait;
use axum::Form;
use axum::extract::{Query, Request, State};
use axum::http::{StatusCode, header};
use axum::middleware::Next;
use axum::response::{IntoResponse, Response};
use axum_login::tower_sessions::session::{Id, Record};
use axum_login::tower_sessions::{SessionStore, session_store};
use axum_login::{AuthUser, AuthnBackend, AuthzBackend};
use serde::Deserialize;
use sqlx::{Row, SqlitePool};
use time::OffsetDateTime;
use crate::db::{Db, fmt_ts};
use crate::server::AppState;
use crate::web::users::{self, Role, User};
use crate::web::{Html, Page, WebError};
const DUMMY_HASH: &str = "$argon2i$v=19$m=65536,t=1,p=1$c29tZXNhbHQAAAAAAAAAAA$+r0d29hqEB0yasKr55ZgICsQGSkl0v0kgwhd+U3wyRo";
#[derive(Clone, Debug)]
pub struct SqliteSessionStore {
pool: SqlitePool,
}
impl SqliteSessionStore {
pub fn new(pool: SqlitePool) -> Self {
Self { pool }
}
pub async fn delete_expired(&self) -> Result<u64, sqlx::Error> {
let result = sqlx::query("DELETE FROM sessions WHERE expiry <= unixepoch()")
.execute(&self.pool)
.await?;
Ok(result.rows_affected())
}
pub async fn delete_for_user(&self, user_id: i64) -> Result<u64, sqlx::Error> {
let result = sqlx::query("DELETE FROM sessions WHERE user_id = ?")
.bind(user_id)
.execute(&self.pool)
.await?;
Ok(result.rows_affected())
}
}
fn store_error(error: impl std::fmt::Display) -> session_store::Error {
session_store::Error::Backend(error.to_string())
}
#[async_trait]
impl SessionStore for SqliteSessionStore {
async fn save(&self, record: &Record) -> session_store::Result<()> {
let data = serde_json::to_string(&record.data).map_err(store_error)?;
let user_id = record
.data
.get("axum-login.data")
.and_then(|value| value.get("user_id"))
.and_then(serde_json::Value::as_i64);
let now = fmt_ts(jiff::Timestamp::now());
sqlx::query(
"INSERT INTO sessions (id, data, expiry, user_id, created_at, updated_at)
VALUES (?, ?, ?, ?, ?, ?)
ON CONFLICT(id) DO UPDATE SET data = excluded.data, expiry = excluded.expiry,
user_id = excluded.user_id, updated_at = excluded.updated_at",
)
.bind(record.id.to_string())
.bind(data)
.bind(record.expiry_date.unix_timestamp())
.bind(user_id)
.bind(&now)
.bind(now)
.execute(&self.pool)
.await
.map_err(store_error)?;
Ok(())
}
async fn load(&self, id: &Id) -> session_store::Result<Option<Record>> {
let row =
sqlx::query("SELECT data, expiry FROM sessions WHERE id = ? AND expiry > unixepoch()")
.bind(id.to_string())
.fetch_optional(&self.pool)
.await
.map_err(store_error)?;
row.map(|row| {
let data = serde_json::from_str(&row.get::<String, _>("data")).map_err(store_error)?;
let expiry_date =
OffsetDateTime::from_unix_timestamp(row.get("expiry")).map_err(store_error)?;
Ok(Record {
id: *id,
data,
expiry_date,
})
})
.transpose()
}
async fn delete(&self, id: &Id) -> session_store::Result<()> {
sqlx::query("DELETE FROM sessions WHERE id = ?")
.bind(id.to_string())
.execute(&self.pool)
.await
.map_err(store_error)?;
Ok(())
}
}
#[derive(Debug, Clone, Deserialize)]
pub struct Credentials {
pub username: String,
pub password: String,
#[serde(default)]
pub next: Option<String>,
}
#[derive(Debug, thiserror::Error)]
pub enum BackendError {
#[error(transparent)]
Db(#[from] crate::db::DbError),
#[error("password verification task failed: {0}")]
Join(#[from] tokio::task::JoinError),
}
#[derive(Clone)]
pub struct Backend {
db: Db,
}
impl Backend {
pub fn new(db: Db) -> Self {
Self { db }
}
}
impl AuthUser for User {
type Id = i64;
fn id(&self) -> Self::Id {
self.id
}
fn session_auth_hash(&self) -> &[u8] {
self.password_hash.as_bytes()
}
}
impl AuthnBackend for Backend {
type User = User;
type Credentials = Credentials;
type Error = BackendError;
async fn authenticate(&self, creds: Credentials) -> Result<Option<User>, BackendError> {
let user = users::find_by_username(&self.db, &creds.username).await?;
let hash = user
.as_ref()
.map(|user| user.password_hash.clone())
.unwrap_or_else(|| DUMMY_HASH.to_string());
let password = creds.password;
let valid =
tokio::task::spawn_blocking(move || users::verify_password(&hash, &password)).await?;
Ok(user.filter(|user| valid && !user.disabled))
}
async fn get_user(&self, id: &i64) -> Result<Option<User>, BackendError> {
Ok(users::find_by_id(&self.db, *id)
.await?
.filter(|user| !user.disabled))
}
}
impl AuthzBackend for Backend {
type Permission = Role;
async fn get_user_permissions(&self, user: &User) -> Result<HashSet<Role>, BackendError> {
let permissions = match user.role {
Role::Admin => [Role::User, Role::Admin].into_iter().collect(),
Role::User => [Role::User].into_iter().collect(),
};
Ok(permissions)
}
}
pub type AuthSession = axum_login::AuthSession<Backend>;
#[derive(Debug, Clone)]
pub struct Viewer {
pub id: i64,
pub username: String,
pub role: Role,
}
impl From<User> for Viewer {
fn from(user: User) -> Self {
Self {
id: user.id,
username: user.username,
role: user.role,
}
}
}
pub fn valid_next(next: Option<&str>) -> &str {
next.filter(|next| next.starts_with('/') && !next.starts_with("//"))
.unwrap_or("/")
}
pub async fn require_same_origin(
State(state): State<AppState>,
request: Request,
next: Next,
) -> Response {
if request.method() != axum::http::Method::POST {
return next.run(request).await;
}
let headers = request.headers();
if let Some(site) = headers
.get("sec-fetch-site")
.and_then(|value| value.to_str().ok())
{
if !matches!(site, "same-origin" | "none") {
return StatusCode::FORBIDDEN.into_response();
}
} else if let Some(origin) = request_origin(headers) {
let config = state.config();
let public_origin = url::Url::parse(&config.server.public_url)
.ok()
.map(|url| url.origin().ascii_serialization());
let host_origin = headers
.get(header::HOST)
.and_then(|value| value.to_str().ok())
.map(|host| format!("{}://{host}", forwarded_scheme(headers)));
if public_origin.as_deref() != Some(origin.as_str())
&& host_origin.as_deref() != Some(origin.as_str())
{
return StatusCode::FORBIDDEN.into_response();
}
}
next.run(request).await
}
#[derive(Debug, Default, Deserialize)]
pub struct LoginQuery {
#[serde(default)]
next: Option<String>,
}
#[derive(Template)]
#[template(path = "login.html")]
struct LoginTemplate {
page: Page,
next: String,
error: String,
}
#[derive(Template)]
#[template(path = "account.html")]
struct AccountTemplate {
page: Page,
error: String,
}
pub async fn login_page(auth: AuthSession, Query(query): Query<LoginQuery>) -> Response {
let viewer = auth.user().await.map(Viewer::from);
Html(LoginTemplate {
page: Page::new("Sign in", viewer, "login"),
next: valid_next(query.next.as_deref()).to_string(),
error: String::new(),
})
.into_response()
}
pub async fn login(
State(state): State<AppState>,
auth: AuthSession,
Form(credentials): Form<Credentials>,
) -> Result<Response, WebError> {
let destination = valid_next(credentials.next.as_deref()).to_string();
match auth
.authenticate(credentials)
.await
.map_err(|error| WebError::Internal(error.into()))?
{
Some(user) => {
auth.login(&user)
.await
.map_err(|error| WebError::Internal(error.into()))?;
sqlx::query("UPDATE users SET last_login_at = ? WHERE id = ?")
.bind(fmt_ts(jiff::Timestamp::now()))
.bind(user.id)
.execute(state.db.pool())
.await
.map_err(crate::db::DbError::from)?;
Ok(axum::response::Redirect::to(&destination).into_response())
}
None => Ok((
StatusCode::UNAUTHORIZED,
Html(LoginTemplate {
page: Page::new("Sign in", None, "login"),
next: destination,
error: "invalid username or password".into(),
}),
)
.into_response()),
}
}
pub async fn logout(auth: AuthSession) -> Result<Response, WebError> {
auth.logout()
.await
.map_err(|error| WebError::Internal(error.into()))?;
Ok(axum::response::Redirect::to("/").into_response())
}
pub async fn account(auth: AuthSession) -> Result<Response, WebError> {
let user = auth.user().await.ok_or_else(|| WebError::Unauthenticated {
next: "/account".into(),
})?;
Ok(Html(AccountTemplate {
page: Page::new("Account", Some(user.into()), "account"),
error: String::new(),
})
.into_response())
}
#[derive(Debug, Deserialize)]
pub struct PasswordForm {
current_password: String,
new_password: String,
confirm_password: String,
}
pub async fn change_password(
State(state): State<AppState>,
auth: AuthSession,
Form(form): Form<PasswordForm>,
) -> Result<Response, WebError> {
let user = auth.user().await.ok_or_else(|| WebError::Unauthenticated {
next: "/account".into(),
})?;
let hash = user.password_hash.clone();
let current = form.current_password;
let valid = tokio::task::spawn_blocking(move || users::verify_password(&hash, &current))
.await
.map_err(|error| WebError::Internal(error.into()))?;
let problem = if !valid {
Some("current password is incorrect".to_string())
} else if form.new_password != form.confirm_password {
Some("the new passwords do not match".to_string())
} else {
users::validate_password(&form.new_password)
.err()
.map(|error| error.to_string())
};
if let Some(error) = problem {
return Ok((
StatusCode::BAD_REQUEST,
Html(AccountTemplate {
page: Page::new("Account", Some(user.into()), "account"),
error,
}),
)
.into_response());
}
let password = form.new_password;
let password_hash = tokio::task::spawn_blocking(move || users::hash_password(&password))
.await
.map_err(|error| WebError::Internal(error.into()))?;
sqlx::query("UPDATE users SET password_hash = ? WHERE id = ?")
.bind(&password_hash)
.bind(user.id)
.execute(state.db.pool())
.await
.map_err(crate::db::DbError::from)?;
SqliteSessionStore::new(state.db.pool().clone())
.delete_for_user(user.id)
.await
.map_err(crate::db::DbError::from)?;
let mut updated = user;
updated.password_hash = password_hash;
auth.login(&updated)
.await
.map_err(|error| WebError::Internal(error.into()))?;
Ok(axum::response::Redirect::to("/account").into_response())
}
pub async fn logout_everywhere(
State(state): State<AppState>,
auth: AuthSession,
) -> Result<Response, WebError> {
let user = auth.user().await.ok_or_else(|| WebError::Unauthenticated {
next: "/account".into(),
})?;
SqliteSessionStore::new(state.db.pool().clone())
.delete_for_user(user.id)
.await
.map_err(crate::db::DbError::from)?;
auth.logout()
.await
.map_err(|error| WebError::Internal(error.into()))?;
Ok(axum::response::Redirect::to("/").into_response())
}
fn forwarded_scheme(headers: &axum::http::HeaderMap) -> &str {
headers
.get("x-forwarded-proto")
.and_then(|value| value.to_str().ok())
.unwrap_or("http")
}
fn request_origin(headers: &axum::http::HeaderMap) -> Option<String> {
if let Some(origin) = headers
.get(header::ORIGIN)
.and_then(|value| value.to_str().ok())
{
return Some(origin.trim_end_matches('/').to_string());
}
let referer = headers
.get(header::REFERER)
.and_then(|value| value.to_str().ok())?;
let url = url::Url::from_str(referer).ok()?;
Some(url.origin().ascii_serialization())
}
#[cfg(test)]
mod tests {
use std::collections::HashMap;
use axum_login::tower_sessions::SessionStore;
use serde_json::json;
use time::Duration;
use super::*;
async fn store() -> (tempfile::TempDir, Db, SqliteSessionStore) {
let dir = tempfile::tempdir().unwrap();
let db = Db::open_and_migrate(&dir.path().join("db.sqlite"))
.await
.unwrap();
let store = SqliteSessionStore::new(db.pool().clone());
(dir, db, store)
}
fn record(user_id: Option<i64>, expiry: OffsetDateTime) -> Record {
let mut data = HashMap::new();
if let Some(user_id) = user_id {
data.insert(
"axum-login.data".into(),
json!({"user_id": user_id, "auth_hash": [1, 2, 3]}),
);
}
Record {
id: Id::default(),
data,
expiry_date: expiry,
}
}
#[tokio::test]
async fn session_store_round_trips_denormalizes_and_deletes() {
let (_dir, db, store) = store().await;
let user = users::add(&db, "reader", "correct horse battery", false)
.await
.unwrap();
let active = record(
Some(user.id),
OffsetDateTime::now_utc() + Duration::hours(1),
);
store.save(&active).await.unwrap();
let loaded = store.load(&active.id).await.unwrap().unwrap();
assert_eq!(loaded.id, active.id);
assert_eq!(loaded.data, active.data);
assert_eq!(
loaded.expiry_date.unix_timestamp(),
active.expiry_date.unix_timestamp()
);
let denormalized: Option<i64> =
sqlx::query_scalar("SELECT user_id FROM sessions WHERE id = ?")
.bind(active.id.to_string())
.fetch_one(db.pool())
.await
.unwrap();
assert_eq!(denormalized, Some(user.id));
assert_eq!(store.delete_for_user(user.id).await.unwrap(), 1);
assert!(store.load(&active.id).await.unwrap().is_none());
let anonymous = record(None, OffsetDateTime::now_utc() + Duration::hours(1));
store.save(&anonymous).await.unwrap();
let denormalized: Option<i64> =
sqlx::query_scalar("SELECT user_id FROM sessions WHERE id = ?")
.bind(anonymous.id.to_string())
.fetch_one(db.pool())
.await
.unwrap();
assert_eq!(denormalized, None);
store.delete(&anonymous.id).await.unwrap();
assert!(store.load(&anonymous.id).await.unwrap().is_none());
}
#[tokio::test]
async fn expired_sessions_are_hidden_and_pruned_and_errors_surface() {
let (_dir, db, store) = store().await;
let expired = record(None, OffsetDateTime::now_utc() - Duration::seconds(1));
store.save(&expired).await.unwrap();
assert!(store.load(&expired.id).await.unwrap().is_none());
assert_eq!(store.delete_expired().await.unwrap(), 1);
db.close().await;
let error = store.save(&record(None, OffsetDateTime::now_utc())).await;
assert!(matches!(error, Err(session_store::Error::Backend(_))));
}
#[test]
fn next_targets_must_be_same_site_paths() {
assert_eq!(valid_next(Some("/dashboard")), "/dashboard");
assert_eq!(valid_next(Some("//evil.example/")), "/");
assert_eq!(valid_next(Some("https://evil.example/")), "/");
}
}