forked from alemi/upub
116 lines
4.2 KiB
Rust
116 lines
4.2 KiB
Rust
use base64::Engine;
|
|
use openssl::{hash::MessageDigest, pkey::PKey, sign::Signer};
|
|
use reqwest::header::USER_AGENT;
|
|
use sea_orm::{ColumnTrait, Condition, DatabaseConnection, DbErr, EntityTrait, Order, QueryFilter, QueryOrder, QuerySelect, SelectColumns};
|
|
use tokio::task::JoinHandle;
|
|
|
|
use crate::{VERSION, activitypub::{activity::ap_activity, object::ap_object}, activitystream::{object::activity::ActivityMut, Node}, model};
|
|
|
|
pub struct Dispatcher;
|
|
|
|
impl Dispatcher {
|
|
pub fn spawn(db: DatabaseConnection, domain: String, poll_interval: u64) -> JoinHandle<Result<(), DbErr>> {
|
|
tokio::spawn(async move {
|
|
let mut nosleep = true;
|
|
loop {
|
|
if nosleep { nosleep = false } else {
|
|
tokio::time::sleep(std::time::Duration::from_secs(poll_interval)).await;
|
|
}
|
|
let Some(delivery) = model::delivery::Entity::find()
|
|
.filter(Condition::all().add(model::delivery::Column::NotBefore.lte(chrono::Utc::now())))
|
|
.order_by(model::delivery::Column::NotBefore, Order::Asc)
|
|
.one(&db)
|
|
.await?
|
|
else { continue };
|
|
|
|
let del_row = model::delivery::ActiveModel {
|
|
id: sea_orm::ActiveValue::Set(delivery.id),
|
|
..Default::default()
|
|
};
|
|
let del = model::delivery::Entity::delete(del_row)
|
|
.exec(&db)
|
|
.await?;
|
|
|
|
if del.rows_affected == 0 {
|
|
// another worker claimed this delivery
|
|
nosleep = true;
|
|
continue; // go back to the top
|
|
}
|
|
if delivery.expired() {
|
|
// try polling for another one
|
|
nosleep = true;
|
|
continue; // go back to top
|
|
}
|
|
|
|
tracing::info!("delivering {} to {}", delivery.activity, delivery.target);
|
|
|
|
let payload = match model::activity::Entity::find_by_id(&delivery.activity)
|
|
.find_also_related(model::object::Entity)
|
|
.one(&db)
|
|
.await? // TODO probably should not fail here and at least re-insert the delivery
|
|
{
|
|
Some((activity, Some(object))) => ap_activity(activity).set_object(Node::object(ap_object(object))),
|
|
Some((activity, None)) => ap_activity(activity),
|
|
None => {
|
|
tracing::warn!("skipping dispatch for deleted object {}", delivery.activity);
|
|
continue;
|
|
},
|
|
};
|
|
|
|
let Some(key_pem) = model::user::Entity::find_by_id(&delivery.actor)
|
|
.select_only()
|
|
.select_column(model::user::Column::PrivateKey)
|
|
.into_tuple::<String>()
|
|
.one(&db)
|
|
.await?
|
|
else {
|
|
tracing::error!("can not dispatch activity for user without private key: {}", delivery.actor);
|
|
continue;
|
|
};
|
|
|
|
let Ok(key) = PKey::private_key_from_pem(key_pem.as_bytes())
|
|
else {
|
|
tracing::error!("failed parsing private key for user {}", delivery.actor);
|
|
continue;
|
|
};
|
|
|
|
let mut signer = Signer::new(MessageDigest::sha256(), &key).unwrap();
|
|
|
|
let without_protocol = delivery.target.replace("https://", "").replace("http://", "");
|
|
let host = without_protocol.replace('/', "");
|
|
let request_target = without_protocol.replace(&host, "");
|
|
let date = chrono::Utc::now().to_rfc2822();
|
|
let signed_string = format!("(request-target): post {request_target}\nhost: {host}\ndate: {date}");
|
|
signer.update(signed_string.as_bytes()).unwrap();
|
|
let signature = base64::prelude::BASE64_URL_SAFE.encode(signer.sign_to_vec().unwrap());
|
|
let signature_header = format!("keyId=\"{}\",headers=\"(request-target) host date\",signature=\"{signature}\"", delivery.actor);
|
|
|
|
if let Err(e) = reqwest::Client::new()
|
|
.post(&delivery.target)
|
|
.json(&payload)
|
|
.header("Host", host)
|
|
.header("Date", date)
|
|
.header("Signature", signature_header)
|
|
.header(USER_AGENT, format!("upub+{VERSION} ({domain})")) // TODO put instance admin email
|
|
.send()
|
|
.await
|
|
{
|
|
tracing::warn!("failed delivery of {} to {} : {e}", delivery.activity, delivery.target);
|
|
let new_delivery = model::delivery::ActiveModel {
|
|
id: sea_orm::ActiveValue::NotSet,
|
|
not_before: sea_orm::ActiveValue::Set(delivery.next_delivery()),
|
|
actor: sea_orm::ActiveValue::Set(delivery.actor),
|
|
target: sea_orm::ActiveValue::Set(delivery.target),
|
|
activity: sea_orm::ActiveValue::Set(delivery.activity),
|
|
created: sea_orm::ActiveValue::Set(delivery.created),
|
|
attempt: sea_orm::ActiveValue::Set(delivery.attempt + 1),
|
|
};
|
|
model::delivery::Entity::insert(new_delivery)
|
|
.exec(&db)
|
|
.await?;
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|