123 lines
4.2 KiB
Rust
123 lines
4.2 KiB
Rust
use async_std::channel::Sender;
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use log::{info, warn};
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use rocket::{
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form::Form,
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get, post,
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request::FlashMessage,
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response::{Flash, Redirect},
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uri, FromForm, State,
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};
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use rocket_dyn_templates::{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,
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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(flash: Option<FlashMessage<'_>>) -> Template {
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let whoami = match sbot::whoami().await {
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Ok(id) => id,
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Err(e) => format!("Error making `whoami` RPC call: {}. Please ensure the local go-sbot is running and refresh.", e),
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};
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Template::render("base", context! { whoami: whoami, flash: flash })
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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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tx: &State<Sender<Task>>,
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peer: Form<PeerForm>,
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) -> Result<Redirect, Flash<Redirect>> {
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if let Err(e) = utils::validate_public_key(&peer.public_key) {
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let validation_err_msg = format!("Public key {} is invalid: {}", &peer.public_key, e);
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warn!("{}", validation_err_msg);
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return Err(Flash::error(Redirect::to(uri!(home)), validation_err_msg));
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} else {
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info!("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 {}: {}", &peer.public_key, e);
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// Return an empty string if an error occurs.
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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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match sbot::follow_if_not_following(&peer.public_key).await {
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Ok(_) => {
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// Add the peer to the database.
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if db.add_peer(peer_info).is_ok() {
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info!("Added {} to 'peers' database tree", &peer.public_key);
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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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let err_msg = format!(
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"Failed to add peer {} to 'peers' database tree",
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&peer.public_key
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);
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warn!("{}", err_msg);
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return Err(Flash::error(Redirect::to(uri!(home)), err_msg));
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}
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}
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Err(e) => {
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warn!("{}", e);
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return Err(Flash::error(Redirect::to(uri!(home)), e));
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}
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}
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}
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Ok(Redirect::to(uri!(home)))
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}
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#[post("/unsubscribe", data = "<peer>")]
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pub async fn unsubscribe_form(
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db: &State<Database>,
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peer: Form<PeerForm>,
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) -> Result<Redirect, Flash<Redirect>> {
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if let Err(e) = utils::validate_public_key(&peer.public_key) {
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let validation_err_msg = format!("Public key {} is invalid: {}", &peer.public_key, e);
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warn!("{}", validation_err_msg);
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return Err(Flash::error(Redirect::to(uri!(home)), validation_err_msg));
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} else {
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info!("Public key {} is valid", &peer.public_key);
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match sbot::unfollow_if_following(&peer.public_key).await {
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Ok(_) => {
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// Remove the peer from the database.
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if db.remove_peer(&peer.public_key).is_ok() {
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info!(
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"Removed peer {} from 'peers' database tree",
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&peer.public_key
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);
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} else {
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warn!(
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"Failed to remove peer {} from 'peers' database tree",
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&peer.public_key
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);
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}
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}
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Err(e) => {
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warn!("{}", e);
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return Err(Flash::error(Redirect::to(uri!(home)), e));
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}
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}
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}
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Ok(Redirect::to(uri!(home)))
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}
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