2020-10-12 14:10:09 +00:00
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use crate::{
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2020-11-25 17:44:49 +00:00
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extensions::context::lemmy_context,
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2021-03-08 13:40:28 +00:00
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generate_moderators_url,
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2020-10-12 14:10:09 +00:00
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http::{create_apub_response, create_apub_tombstone_response},
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2020-12-08 17:38:48 +00:00
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objects::ToApub,
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2020-10-12 14:10:09 +00:00
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ActorType,
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};
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use activitystreams::{
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2021-01-27 14:02:28 +00:00
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base::{AnyBase, BaseExt},
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2020-10-12 14:10:09 +00:00
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collection::{CollectionExt, OrderedCollection, UnorderedCollection},
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url::Url,
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2020-10-12 14:10:09 +00:00
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};
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use actix_web::{body::Body, web, HttpResponse};
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2021-03-01 13:08:41 +00:00
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use lemmy_api_structs::blocking;
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2021-01-27 14:02:28 +00:00
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use lemmy_db_queries::source::{activity::Activity_, community::Community_};
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use lemmy_db_schema::source::{activity::Activity, community::Community};
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2021-03-08 13:40:28 +00:00
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use lemmy_db_views_actor::{
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community_follower_view::CommunityFollowerView,
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community_moderator_view::CommunityModeratorView,
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};
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2020-10-12 14:10:09 +00:00
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use lemmy_utils::LemmyError;
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use lemmy_websocket::LemmyContext;
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use serde::Deserialize;
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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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2020-10-19 14:29:35 +00:00
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/// Return the ActivityPub json representation of a local community over HTTP.
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2021-03-08 13:40:28 +00:00
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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 = 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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if !community.deleted {
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let apub = community.to_apub(context.pool()).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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/// 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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2020-11-25 17:44:49 +00:00
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.set_many_contexts(lemmy_context()?)
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2021-02-04 16:34:58 +00:00
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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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2020-10-19 14:29:35 +00:00
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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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2021-01-27 14:02:28 +00:00
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let community_actor_id = community.actor_id.to_owned();
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let activities = blocking(context.pool(), move |conn| {
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Activity::read_community_outbox(conn, &community_actor_id)
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2020-10-12 14:10:09 +00:00
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})
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.await??;
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2021-01-27 14:02:28 +00:00
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let activities = activities
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.iter()
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.map(AnyBase::from_arbitrary_json)
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.collect::<Result<Vec<AnyBase>, serde_json::Error>>()?;
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let len = activities.len();
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let mut collection = OrderedCollection::new();
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collection
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.set_many_items(activities)
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2020-11-25 17:44:49 +00:00
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.set_many_contexts(lemmy_context()?)
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2020-10-12 14:10:09 +00:00
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.set_id(community.get_outbox_url()?)
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.set_total_items(len as u64);
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Ok(create_apub_response(&collection))
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}
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2020-12-16 20:07:48 +00:00
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2021-03-08 13:40:28 +00:00
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pub(crate) async fn get_apub_community_inbox(
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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 mut collection = OrderedCollection::new();
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collection
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.set_id(community.inbox_url.into())
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.set_many_contexts(lemmy_context()?);
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Ok(create_apub_response(&collection))
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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 = 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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2021-03-08 13:40:28 +00:00
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// The attributed to, is an ordered vector with the creator actor_ids first,
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// then the rest of the moderators
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// TODO Technically the instance admins can mod the community, but lets
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// ignore that for now
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let cid = community.id;
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let moderators = blocking(context.pool(), move |conn| {
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CommunityModeratorView::for_community(&conn, cid)
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})
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.await??;
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let moderators: Vec<Url> = moderators
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.into_iter()
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.map(|m| m.moderator.actor_id.into_inner())
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.collect();
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2020-12-16 20:07:48 +00:00
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let mut collection = OrderedCollection::new();
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collection
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.set_id(generate_moderators_url(&community.actor_id)?.into())
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.set_total_items(moderators.len() as u64)
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.set_many_items(moderators)
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2020-12-16 20:07:48 +00:00
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.set_many_contexts(lemmy_context()?);
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Ok(create_apub_response(&collection))
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}
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