2020-10-12 14:10:09 +00:00
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use crate::{
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http::{create_apub_response, create_apub_tombstone_response},
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ActorType,
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ToApub,
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};
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use activitystreams::{
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base::{AnyBase, BaseExt, ExtendsExt},
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collection::{CollectionExt, OrderedCollection, UnorderedCollection},
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};
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use actix_web::{body::Body, web, HttpResponse};
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use lemmy_db::{community::Community, community_view::CommunityFollowerView, post::Post};
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use lemmy_structs::blocking;
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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 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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2020-10-12 14:10:09 +00:00
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pub 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 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_context(activitystreams::context())
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.set_id(community.get_followers_url()?)
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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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2020-10-12 14:10:09 +00:00
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pub 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 community_id = community.id;
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let posts = blocking(context.pool(), move |conn| {
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Post::list_for_community(conn, community_id)
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})
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.await??;
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let mut pages: Vec<AnyBase> = vec![];
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for p in posts {
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pages.push(p.to_apub(context.pool()).await?.into_any_base()?);
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}
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let len = pages.len();
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let mut collection = OrderedCollection::new();
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collection
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.set_many_items(pages)
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.set_context(activitystreams::context())
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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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