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#![forbid(unsafe_code)]
#![warn(clippy::todo)]
use std::sync::Arc;
use axum::extract::FromRef;
use axum_extra::extract::cookie::Key;
use database::{FileStorage, PostgresStorage, Storage};
use indieauth::backend::{AuthBackend, FileBackend as FileAuthBackend};
use kittybox_util::queue::{JobItem, JobQueue};
use media::storage::{MediaStore, file::FileStore as FileMediaStore};
use tokio::{sync::Mutex, task::JoinSet};
use webmentions::queue::{PostgresJobItem, PostgresJobQueue};
/// Database abstraction layer for Kittybox, allowing the CMS to work with any kind of database.
pub mod database;
pub mod frontend;
pub mod media;
pub mod micropub;
pub mod indieauth;
pub mod webmentions;
pub mod login;
//pub mod admin;
#[derive(Clone)]
pub struct AppState<A, S, M, Q>
where
A: AuthBackend + Sized + 'static,
S: Storage + Sized + 'static,
M: MediaStore + Sized + 'static,
Q: JobQueue<webmentions::Webmention> + Sized
{
pub auth_backend: A,
pub storage: S,
pub media_store: M,
pub job_queue: Q,
pub http: reqwest::Client,
pub background_jobs: Arc<Mutex<JoinSet<()>>>,
pub cookie_key: Key
}
// This is really regrettable, but I can't write:
//
// ```compile-error
// impl <A, S, M> FromRef<AppState<A, S, M>> for A
// where A: AuthBackend, S: Storage, M: MediaStore {
// fn from_ref(input: &AppState<A, S, M>) -> A {
// input.auth_backend.clone()
// }
// }
// ```
//
// ...because of the orphan rule.
//
// I wonder if this would stifle external implementations. I think it
// shouldn't, because my AppState type is generic, and since the
// target type is local, the orphan rule will not kick in. You just
// have to repeat this magic invocation.
impl<S, M, Q> FromRef<AppState<Self, S, M, Q>> for FileAuthBackend
// where S: Storage, M: MediaStore
where S: Storage, M: MediaStore, Q: JobQueue<webmentions::Webmention>
{
fn from_ref(input: &AppState<Self, S, M, Q>) -> Self {
input.auth_backend.clone()
}
}
impl<A, M, Q> FromRef<AppState<A, Self, M, Q>> for PostgresStorage
// where A: AuthBackend, M: MediaStore
where A: AuthBackend, M: MediaStore, Q: JobQueue<webmentions::Webmention>
{
fn from_ref(input: &AppState<A, Self, M, Q>) -> Self {
input.storage.clone()
}
}
impl<A, M, Q> FromRef<AppState<A, Self, M, Q>> for FileStorage
where A: AuthBackend, M: MediaStore, Q: JobQueue<webmentions::Webmention>
{
fn from_ref(input: &AppState<A, Self, M, Q>) -> Self {
input.storage.clone()
}
}
impl<A, S, Q> FromRef<AppState<A, S, Self, Q>> for FileMediaStore
// where A: AuthBackend, S: Storage
where A: AuthBackend, S: Storage, Q: JobQueue<webmentions::Webmention>
{
fn from_ref(input: &AppState<A, S, Self, Q>) -> Self {
input.media_store.clone()
}
}
impl<A, S, M, Q> FromRef<AppState<A, S, M, Q>> for Key
where A: AuthBackend, S: Storage, M: MediaStore, Q: JobQueue<webmentions::Webmention>
{
fn from_ref(input: &AppState<A, S, M, Q>) -> Self {
input.cookie_key.clone()
}
}
impl<A, S, M, Q> FromRef<AppState<A, S, M, Q>> for reqwest::Client
where A: AuthBackend, S: Storage, M: MediaStore, Q: JobQueue<webmentions::Webmention>
{
fn from_ref(input: &AppState<A, S, M, Q>) -> Self {
input.http.clone()
}
}
impl<A, S, M, Q> FromRef<AppState<A, S, M, Q>> for Arc<Mutex<JoinSet<()>>>
where A: AuthBackend, S: Storage, M: MediaStore, Q: JobQueue<webmentions::Webmention>
{
fn from_ref(input: &AppState<A, S, M, Q>) -> Self {
input.background_jobs.clone()
}
}
#[cfg(feature = "sqlx")]
impl<A, S, M> FromRef<AppState<A, S, M, Self>> for PostgresJobQueue<webmentions::Webmention>
where A: AuthBackend, S: Storage, M: MediaStore
{
fn from_ref(input: &AppState<A, S, M, Self>) -> Self {
input.job_queue.clone()
}
}
pub mod companion {
use std::{collections::HashMap, sync::Arc};
use axum::{
extract::{Extension, Path},
response::{IntoResponse, Response}
};
#[derive(Debug, Clone, Copy)]
struct Resource {
data: &'static [u8],
mime: &'static str
}
impl IntoResponse for &Resource {
fn into_response(self) -> Response {
(axum::http::StatusCode::OK,
[("Content-Type", self.mime)],
self.data).into_response()
}
}
// TODO replace with the "phf" crate someday
type ResourceTable = Arc<HashMap<&'static str, Resource>>;
#[tracing::instrument]
async fn map_to_static(
Path(name): Path<String>,
Extension(resources): Extension<ResourceTable>
) -> Response {
tracing::debug!("Searching for {} in the resource table...", name);
match resources.get(name.as_str()) {
Some(res) => res.into_response(),
None => {
#[cfg(debug_assertions)] tracing::error!("Not found");
(axum::http::StatusCode::NOT_FOUND,
[("Content-Type", "text/plain")],
"Not found. Sorry.".as_bytes()).into_response()
}
}
}
pub fn router<St: Clone + Send + Sync + 'static>() -> axum::Router<St> {
let resources: ResourceTable = {
let mut map = HashMap::new();
macro_rules! register_resource {
($map:ident, $prefix:expr, ($filename:literal, $mime:literal)) => {{
$map.insert($filename, Resource {
data: include_bytes!(concat!($prefix, $filename)),
mime: $mime
})
}};
($map:ident, $prefix:expr, ($filename:literal, $mime:literal), $( ($f:literal, $m:literal) ),+) => {{
register_resource!($map, $prefix, ($filename, $mime));
register_resource!($map, $prefix, $(($f, $m)),+);
}};
}
register_resource! {
map,
concat!(env!("OUT_DIR"), "/", "companion", "/"),
("index.html", "text/html; charset=\"utf-8\""),
("main.js", "text/javascript"),
("micropub_api.js", "text/javascript"),
("indieauth.js", "text/javascript"),
("base64.js", "text/javascript"),
("style.css", "text/css")
};
Arc::new(map)
};
axum::Router::new()
.route(
"/:filename",
axum::routing::get(map_to_static)
.layer(Extension(resources))
)
}
}
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