lemmy/crates/apub/src/http/mod.rs
Nutomic e9e76549a8
Split activity table into sent and received parts (fixes #3103) (#3583)
* Split activity table into sent and received parts (fixes #3103)

The received activities are only stored in order to avoid processing
the same incoming activity multiple times. For this purpose it is
completely unnecessary to store the data. So we can split the
table into sent_activity and received_activity parts, where
only sent_activity table needs to store activity data. This should
reduce storage use significantly.

Also reduces activity storage duration to three months, we can reduce
this further if necessary.

Additionally the id columns of activity tables are removed because
they are completely unused and risk overflowing (fixes #3560).

* address review

* move insert_received_activity() methods to verify handlers

* remove unnecessary conflict line

* clippy

* use on conflict, add tests
2023-07-14 11:17:06 -04:00

99 lines
2.6 KiB
Rust

use crate::{
activity_lists::SharedInboxActivities,
fetcher::user_or_community::UserOrCommunity,
protocol::objects::tombstone::Tombstone,
CONTEXT,
};
use activitypub_federation::{
actix_web::inbox::receive_activity,
config::Data,
protocol::context::WithContext,
FEDERATION_CONTENT_TYPE,
};
use actix_web::{web, web::Bytes, HttpRequest, HttpResponse};
use http::StatusCode;
use lemmy_api_common::context::LemmyContext;
use lemmy_db_schema::source::activity::SentActivity;
use lemmy_utils::error::{LemmyError, LemmyErrorType, LemmyResult};
use serde::{Deserialize, Serialize};
use std::ops::Deref;
use url::Url;
mod comment;
mod community;
mod person;
mod post;
pub mod routes;
pub mod site;
pub async fn shared_inbox(
request: HttpRequest,
body: Bytes,
data: Data<LemmyContext>,
) -> LemmyResult<HttpResponse> {
receive_activity::<SharedInboxActivities, UserOrCommunity, LemmyContext>(request, body, &data)
.await
}
/// Convert the data to json and turn it into an HTTP Response with the correct ActivityPub
/// headers.
///
/// actix-web doesn't allow pretty-print for json so we need to do this manually.
fn create_apub_response<T>(data: &T) -> LemmyResult<HttpResponse>
where
T: Serialize,
{
let json = serde_json::to_string_pretty(&WithContext::new(data, CONTEXT.clone()))?;
Ok(
HttpResponse::Ok()
.content_type(FEDERATION_CONTENT_TYPE)
.body(json),
)
}
fn create_apub_tombstone_response<T: Into<Url>>(id: T) -> LemmyResult<HttpResponse> {
let tombstone = Tombstone::new(id.into());
let json = serde_json::to_string_pretty(&WithContext::new(tombstone, CONTEXT.deref().clone()))?;
Ok(
HttpResponse::Gone()
.content_type(FEDERATION_CONTENT_TYPE)
.status(StatusCode::GONE)
.body(json),
)
}
fn err_object_not_local() -> LemmyError {
LemmyErrorType::ObjectNotLocal.into()
}
#[derive(Deserialize)]
pub struct ActivityQuery {
type_: String,
id: String,
}
/// Return the ActivityPub json representation of a local activity over HTTP.
#[tracing::instrument(skip_all)]
pub(crate) async fn get_activity(
info: web::Path<ActivityQuery>,
context: web::Data<LemmyContext>,
) -> Result<HttpResponse, LemmyError> {
let settings = context.settings();
let activity_id = Url::parse(&format!(
"{}/activities/{}/{}",
settings.get_protocol_and_hostname(),
info.type_,
info.id
))?
.into();
let activity = SentActivity::read_from_apub_id(&mut context.pool(), &activity_id).await?;
let sensitive = activity.sensitive;
if sensitive {
Ok(HttpResponse::Forbidden().finish())
} else {
create_apub_response(&activity.data)
}
}