mirror of
https://github.com/LemmyNet/lemmy.git
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138 lines
4.6 KiB
Rust
138 lines
4.6 KiB
Rust
use crate::{
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activities::{community::announce::GetCommunity, verify_person_in_community},
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activity_lists::GroupInboxActivities,
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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::WithContext,
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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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protocol::{
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activities::community::announce::AnnounceActivity,
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collections::group_followers::GroupFollowers,
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},
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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, ApubObject};
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use lemmy_db_schema::source::community::Community;
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use lemmy_utils::LemmyError;
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use lemmy_websocket::LemmyContext;
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use log::info;
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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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/// 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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/// 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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info!("Received community inbox activity {}", unparsed);
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let activity = serde_json::from_str::<WithContext<GroupInboxActivities>>(&unparsed)?;
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receive_group_inbox(activity.inner(), 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 {
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let community = announcable.get_community(context, &mut 0).await?;
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let actor_id = ObjectId::new(announcable.actor().clone());
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verify_person_in_community(&actor_id, &community, 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 followers = GroupFollowers::new(community, &context).await?;
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Ok(create_apub_response(&followers))
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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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