229 lines
7.3 KiB
Rust
229 lines
7.3 KiB
Rust
//! Web server route handlers.
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use async_std::channel::Sender;
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use log::{debug, warn};
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use rocket::{form::Form, get, post, response::Redirect, uri, FromForm, State};
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use rocket_dyn_templates::{tera::Context, Template};
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use crate::{
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db::{Database, Peer},
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sbot,
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task_loop::Task,
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utils, WhoAmI,
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};
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#[derive(FromForm)]
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pub struct PeerForm {
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pub public_key: String,
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}
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#[get("/")]
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pub async fn home(db: &State<Database>) -> Template {
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let peers = db.get_peers();
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let mut context = Context::new();
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let mut peers_unread = Vec::new();
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for peer in peers {
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let unread_count = db.get_unread_post_count(&peer.public_key);
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peers_unread.push((peer, unread_count.to_string()));
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}
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context.insert("peers", &peers_unread);
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Template::render("base", &context.into_json())
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}
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#[get("/posts/<public_key>/<msg_id>/delete")]
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pub async fn delete_post(db: &State<Database>, public_key: &str, msg_id: &str) -> Redirect {
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// Delete the post from the database. This method cannot panic, so we're
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// safe to unwrap the result.
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db.remove_post(public_key, msg_id).unwrap();
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Redirect::to(uri!(posts(public_key)))
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}
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#[get("/posts/<public_key>")]
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pub async fn posts(db: &State<Database>, public_key: &str) -> Template {
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let peers = db.get_peers();
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let mut context = Context::new();
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let mut peers_unread = Vec::new();
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for peer in peers {
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let unread_count = db.get_unread_post_count(&peer.public_key);
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peers_unread.push((peer, unread_count.to_string()));
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}
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context.insert("peers", &peers_unread);
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let posts = db.get_posts(public_key).unwrap();
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context.insert("selected_peer", &public_key);
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context.insert("posts", &posts);
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Template::render("base", &context.into_json())
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}
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#[get("/posts/<public_key>/<msg_id>")]
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pub async fn post(db: &State<Database>, public_key: &str, msg_id: &str) -> Template {
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let peers = db.get_peers();
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let mut context = Context::new();
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let mut peers_unread = Vec::new();
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for peer in peers {
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let unread_count = db.get_unread_post_count(&peer.public_key);
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peers_unread.push((peer, unread_count.to_string()));
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}
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context.insert("peers", &peers_unread);
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let posts = db.get_posts(public_key).unwrap();
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let post = db.get_post(public_key, msg_id).unwrap();
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context.insert("selected_peer", &public_key);
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context.insert(
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"selected_peer_encoded",
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&uri_encode::encode_uri_component(public_key),
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);
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context.insert("selected_post", &msg_id);
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context.insert(
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"selected_post_encoded",
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&uri_encode::encode_uri_component(msg_id),
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);
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context.insert("posts", &posts);
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context.insert("post", &post);
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context.insert("post_is_selected", &true);
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Template::render("base", &context.into_json())
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}
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#[get("/posts/<public_key>/<msg_id>/read")]
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pub async fn mark_post_read(db: &State<Database>, public_key: &str, msg_id: &str) -> Redirect {
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// Retrieve the post from the database, mark it as read and reinsert it.
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if let Ok(Some(mut post)) = db.get_post(public_key, msg_id) {
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post.read = true;
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db.add_post(public_key, post).unwrap();
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} else {
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warn!(
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"failed to find post {} authored by {} in database",
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msg_id, public_key
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)
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}
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Redirect::to(uri!(post(public_key, msg_id)))
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}
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#[get("/posts/<public_key>/<msg_id>/unread")]
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pub async fn mark_post_unread(db: &State<Database>, public_key: &str, msg_id: &str) -> Redirect {
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// Retrieve the post from the database, mark it as unread and reinsert it.
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if let Ok(Some(mut post)) = db.get_post(public_key, msg_id) {
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post.read = false;
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db.add_post(public_key, post).unwrap();
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} else {
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warn!(
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"failed to find post {} authored by {} in database",
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msg_id, public_key
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)
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}
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Redirect::to(uri!(post(public_key, msg_id)))
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}
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#[get("/posts/download_latest")]
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pub async fn download_latest_posts(db: &State<Database>, tx: &State<Sender<Task>>) -> Redirect {
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for peer in db.get_peers() {
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// Fetch the latest root posts authored by each peer we're
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// subscribed to. Posts will be added to the key-value database.
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if let Err(e) = tx
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.send(Task::FetchLatestPosts(peer.public_key.clone()))
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.await
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{
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warn!("task loop error: {}", e)
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}
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// Fetch the latest name for each peer we're subscribed to and update
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// the database.
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if let Err(e) = tx.send(Task::FetchLatestName(peer.public_key)).await {
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warn!("task loop error: {}", e)
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}
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}
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Redirect::to(uri!(home))
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}
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#[post("/subscribe", data = "<peer>")]
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pub async fn subscribe_form(
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db: &State<Database>,
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whoami: &State<WhoAmI>,
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tx: &State<Sender<Task>>,
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peer: Form<PeerForm>,
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) -> Redirect {
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if utils::validate_public_key(&peer.public_key).is_ok() {
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debug!("public key {} is valid", &peer.public_key);
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// Retrieve the name of the peer to which we are subscribing.
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let peer_name = match sbot::get_name(&peer.public_key).await {
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Ok(name) => name,
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Err(e) => {
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warn!("failed to fetch name for {}: {}", &peer.public_key, e);
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String::from("")
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}
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};
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let peer_info = Peer::new(&peer.public_key).set_name(&peer_name);
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// Add the peer to the database and then check the follow state.
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// Follow the peer if our local instance is not already following.
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if db.add_peer(peer_info).is_ok() {
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debug!("added {} to peer tree in database", &peer.public_key);
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match sbot::is_following(&whoami.0, &peer.public_key).await {
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Ok(status) if status.as_str() == "false" => {
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match sbot::follow_peer(&peer.public_key).await {
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Ok(_) => debug!("followed {}", &peer.public_key),
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Err(e) => warn!("failed to follow {}: {}", &peer.public_key, e),
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}
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}
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Ok(status) if status.as_str() == "true" => {
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debug!("we already follow {}", &peer.public_key)
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}
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_ => (),
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}
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let peer_id = peer.public_key.to_string();
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// Fetch all root posts authored by the peer we're subscribing
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// to. Posts will be added to the key-value database.
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if let Err(e) = tx.send(Task::FetchAllPosts(peer_id)).await {
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warn!("task loop error: {}", e)
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}
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} else {
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warn!(
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"failed to add {} to peer tree in database",
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&peer.public_key
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)
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}
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} else {
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warn!("{} is invalid", &peer.public_key);
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}
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Redirect::to(uri!(home))
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}
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#[post("/unsubscribe", data = "<peer>")]
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pub fn unsubscribe_form(db: &State<Database>, peer: Form<PeerForm>) -> Redirect {
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if let Err(e) = utils::validate_public_key(&peer.public_key) {
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warn!("{} is invalid: {}", &peer.public_key, e)
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} else {
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debug!("public key {} is valid", &peer.public_key);
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match db.remove_peer(&peer.public_key) {
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Ok(_) => debug!("removed {} from peer tree in database", &peer.public_key),
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Err(_e) => warn!(
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"failed to remove {} from peer tree in database",
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&peer.public_key
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),
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}
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}
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Redirect::to(uri!(home))
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}
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