159 lines
5.3 KiB
Rust
159 lines
5.3 KiB
Rust
use crate::{
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activities::{
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community::announce::{AnnouncableActivities, AnnounceActivity},
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extract_community,
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following::{follow::FollowCommunity, undo::UndoFollowCommunity},
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report::Report,
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},
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collections::{
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community_moderators::ApubCommunityModerators,
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community_outbox::ApubCommunityOutbox,
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CommunityContext,
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},
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context::lemmy_context,
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fetcher::object_id::ObjectId,
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generate_outbox_url,
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http::{
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create_apub_response,
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create_apub_tombstone_response,
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payload_to_string,
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receive_activity,
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},
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objects::community::ApubCommunity,
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};
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use activitystreams::{
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base::BaseExt,
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collection::{CollectionExt, UnorderedCollection},
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};
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use actix_web::{body::Body, web, web::Payload, HttpRequest, HttpResponse};
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use lemmy_api_common::blocking;
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use lemmy_apub_lib::traits::{ActivityFields, ActivityHandler, ApubObject};
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use lemmy_db_schema::source::community::Community;
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use lemmy_db_views_actor::community_follower_view::CommunityFollowerView;
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use lemmy_utils::LemmyError;
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use lemmy_websocket::LemmyContext;
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use log::trace;
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use serde::{Deserialize, Serialize};
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#[derive(Deserialize)]
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pub(crate) struct CommunityQuery {
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community_name: String,
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}
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/// Return the ActivityPub json representation of a local community over HTTP.
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pub(crate) async fn get_apub_community_http(
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info: web::Path<CommunityQuery>,
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context: web::Data<LemmyContext>,
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) -> Result<HttpResponse<Body>, LemmyError> {
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let community: ApubCommunity = blocking(context.pool(), move |conn| {
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Community::read_from_name(conn, &info.community_name)
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})
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.await??
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.into();
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if !community.deleted {
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let apub = community.to_apub(&**context).await?;
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Ok(create_apub_response(&apub))
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} else {
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Ok(create_apub_tombstone_response(&community.to_tombstone()?))
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}
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}
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#[derive(Clone, Debug, Deserialize, Serialize, ActivityHandler, ActivityFields)]
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#[serde(untagged)]
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#[activity_handler(LemmyContext)]
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pub enum GroupInboxActivities {
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FollowCommunity(FollowCommunity),
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UndoFollowCommunity(UndoFollowCommunity),
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AnnouncableActivities(AnnouncableActivities),
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Report(Report),
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}
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/// Handler for all incoming receive to community inboxes.
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pub async fn community_inbox(
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request: HttpRequest,
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payload: Payload,
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_path: web::Path<String>,
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context: web::Data<LemmyContext>,
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) -> Result<HttpResponse, LemmyError> {
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let unparsed = payload_to_string(payload).await?;
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trace!("Received community inbox activity {}", unparsed);
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let activity = serde_json::from_str::<GroupInboxActivities>(&unparsed)?;
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receive_group_inbox(activity.clone(), request, &context).await?;
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Ok(HttpResponse::Ok().finish())
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}
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pub(in crate::http) async fn receive_group_inbox(
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activity: GroupInboxActivities,
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request: HttpRequest,
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context: &LemmyContext,
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) -> Result<HttpResponse, LemmyError> {
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let res = receive_activity(request, activity.clone(), context).await;
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if let GroupInboxActivities::AnnouncableActivities(announcable) = activity.clone() {
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let community = extract_community(&announcable.cc(), context, &mut 0).await?;
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if community.local {
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AnnounceActivity::send(announcable, &community, vec![], context).await?;
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}
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}
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res
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}
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/// Returns an empty followers collection, only populating the size (for privacy).
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pub(crate) async fn get_apub_community_followers(
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info: web::Path<CommunityQuery>,
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context: web::Data<LemmyContext>,
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) -> Result<HttpResponse<Body>, LemmyError> {
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let community = blocking(context.pool(), move |conn| {
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Community::read_from_name(conn, &info.community_name)
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})
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.await??;
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let community_id = community.id;
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let community_followers = blocking(context.pool(), move |conn| {
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CommunityFollowerView::for_community(conn, community_id)
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})
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.await??;
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let mut collection = UnorderedCollection::new();
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collection
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.set_many_contexts(lemmy_context())
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.set_id(community.followers_url.into())
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.set_total_items(community_followers.len() as u64);
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Ok(create_apub_response(&collection))
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}
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/// Returns the community outbox, which is populated by a maximum of 20 posts (but no other
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/// activites like votes or comments).
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pub(crate) async fn get_apub_community_outbox(
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info: web::Path<CommunityQuery>,
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context: web::Data<LemmyContext>,
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) -> Result<HttpResponse<Body>, LemmyError> {
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let community = blocking(context.pool(), move |conn| {
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Community::read_from_name(conn, &info.community_name)
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})
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.await??;
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let id = ObjectId::new(generate_outbox_url(&community.actor_id)?.into_inner());
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let outbox_data = CommunityContext(community.into(), context.get_ref().clone());
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let outbox: ApubCommunityOutbox = id.dereference(&outbox_data, &mut 0).await?;
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Ok(create_apub_response(&outbox.to_apub(&outbox_data).await?))
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}
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pub(crate) async fn get_apub_community_moderators(
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info: web::Path<CommunityQuery>,
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context: web::Data<LemmyContext>,
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) -> Result<HttpResponse<Body>, LemmyError> {
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let community: ApubCommunity = blocking(context.pool(), move |conn| {
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Community::read_from_name(conn, &info.community_name)
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})
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.await??
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.into();
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let id = ObjectId::new(generate_outbox_url(&community.actor_id)?.into_inner());
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let outbox_data = CommunityContext(community, context.get_ref().clone());
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let moderators: ApubCommunityModerators = id.dereference(&outbox_data, &mut 0).await?;
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Ok(create_apub_response(
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&moderators.to_apub(&outbox_data).await?,
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))
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}
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