mirror of
https://github.com/LemmyNet/lemmy.git
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119 lines
3.1 KiB
Rust
119 lines
3.1 KiB
Rust
use crate::{
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activity_lists::SharedInboxActivities,
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fetcher::user_or_community::UserOrCommunity,
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protocol::objects::tombstone::Tombstone,
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FEDERATION_CONTEXT,
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};
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use activitypub_federation::{
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actix_web::inbox::receive_activity,
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config::Data,
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protocol::context::WithContext,
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FEDERATION_CONTENT_TYPE,
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};
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use actix_web::{web, web::Bytes, HttpRequest, HttpResponse};
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use http::{header::LOCATION, StatusCode};
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use lemmy_api_common::context::LemmyContext;
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use lemmy_db_schema::{
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newtypes::DbUrl,
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source::{activity::SentActivity, community::Community},
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CommunityVisibility,
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};
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use lemmy_utils::error::{LemmyErrorType, LemmyResult};
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use serde::{Deserialize, Serialize};
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use std::ops::Deref;
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use url::Url;
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mod comment;
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mod community;
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mod person;
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mod post;
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pub mod routes;
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pub mod site;
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pub async fn shared_inbox(
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request: HttpRequest,
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body: Bytes,
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data: Data<LemmyContext>,
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) -> LemmyResult<HttpResponse> {
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receive_activity::<SharedInboxActivities, UserOrCommunity, LemmyContext>(request, body, &data)
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.await
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}
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/// Convert the data to json and turn it into an HTTP Response with the correct ActivityPub
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/// headers.
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///
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/// actix-web doesn't allow pretty-print for json so we need to do this manually.
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fn create_apub_response<T>(data: &T) -> LemmyResult<HttpResponse>
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where
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T: Serialize,
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{
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let json = serde_json::to_string_pretty(&WithContext::new(data, FEDERATION_CONTEXT.clone()))?;
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Ok(
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HttpResponse::Ok()
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.content_type(FEDERATION_CONTENT_TYPE)
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.body(json),
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)
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}
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fn create_apub_tombstone_response<T: Into<Url>>(id: T) -> LemmyResult<HttpResponse> {
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let tombstone = Tombstone::new(id.into());
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let json = serde_json::to_string_pretty(&WithContext::new(
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tombstone,
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FEDERATION_CONTEXT.deref().clone(),
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))?;
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Ok(
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HttpResponse::Gone()
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.content_type(FEDERATION_CONTENT_TYPE)
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.status(StatusCode::GONE)
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.body(json),
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)
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}
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fn redirect_remote_object(url: &DbUrl) -> HttpResponse {
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let mut res = HttpResponse::PermanentRedirect();
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res.insert_header((LOCATION, url.as_str()));
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res.finish()
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}
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#[derive(Deserialize)]
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pub struct ActivityQuery {
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type_: String,
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id: String,
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}
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/// Return the ActivityPub json representation of a local activity over HTTP.
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#[tracing::instrument(skip_all)]
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pub(crate) async fn get_activity(
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info: web::Path<ActivityQuery>,
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context: web::Data<LemmyContext>,
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) -> LemmyResult<HttpResponse> {
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let settings = context.settings();
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let activity_id = Url::parse(&format!(
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"{}/activities/{}/{}",
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settings.get_protocol_and_hostname(),
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info.type_,
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info.id
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))?
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.into();
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let activity = SentActivity::read_from_apub_id(&mut context.pool(), &activity_id).await?;
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let sensitive = activity.sensitive;
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if sensitive {
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Ok(HttpResponse::Forbidden().finish())
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} else {
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create_apub_response(&activity.data)
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}
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}
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/// Ensure that the community is public and not removed/deleted.
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fn check_community_public(community: &Community) -> LemmyResult<()> {
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if community.deleted || community.removed {
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Err(LemmyErrorType::Deleted)?
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}
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if community.visibility != CommunityVisibility::Public {
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return Err(LemmyErrorType::CouldntFindCommunity.into());
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}
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Ok(())
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}
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