crates/apub/src/activities/community/update.rs

   1 use crate::{
   2   activities::{
   3     community::{announce::GetCommunity, send_to_community},
   4     generate_activity_id,
   5     verify_activity,
   6     verify_is_public,
   7     verify_mod_action,
   8     verify_person_in_community,
   9   },
  10   activity_lists::AnnouncableActivities,
  11   objects::{community::ApubCommunity, person::ApubPerson},
  12   protocol::activities::community::update::UpdateCommunity,
  13 };
  14 use activitystreams::{activity::kind::UpdateType, public};
  15 use lemmy_api_common::blocking;
  16 use lemmy_apub_lib::{
  17   data::Data,
  18   object_id::ObjectId,
  19   traits::{ActivityHandler, ActorType, ApubObject},
  20 };
  21 use lemmy_db_schema::{
  22   source::community::{Community, CommunityForm},
  23   traits::Crud,
  24 };
  25 use lemmy_utils::LemmyError;
  26 use lemmy_websocket::{send::send_community_ws_message, LemmyContext, UserOperationCrud};
  27
  28 impl UpdateCommunity {
  29   pub async fn send(
  30     community: ApubCommunity,
  31     actor: &ApubPerson,
  32     context: &LemmyContext,
  33   ) -> Result<(), LemmyError> {
  34     let id = generate_activity_id(
  35       UpdateType::Update,
  36       &context.settings().get_protocol_and_hostname(),
  37     )?;
  38     let update = UpdateCommunity {
  39       actor: ObjectId::new(actor.actor_id()),
  40       to: vec![public()],
  41       object: Box::new(community.clone().into_apub(context).await?),
  42       cc: vec![community.actor_id()],
  43       kind: UpdateType::Update,
  44       id: id.clone(),
  45       unparsed: Default::default(),
  46     };
  47
  48     let activity = AnnouncableActivities::UpdateCommunity(update);
  49     send_to_community(activity, &id, actor, &community, vec![], context).await
  50   }
  51 }
  52
  53 #[async_trait::async_trait(?Send)]
  54 impl ActivityHandler for UpdateCommunity {
  55   type DataType = LemmyContext;
  56   async fn verify(
  57     &self,
  58     context: &Data<LemmyContext>,
  59     request_counter: &mut i32,
  60   ) -> Result<(), LemmyError> {
  61     verify_is_public(&self.to)?;
  62     verify_activity(&self.id, self.actor.inner(), &context.settings())?;
  63     let community = self.get_community(context, request_counter).await?;
  64     verify_person_in_community(&self.actor, &community, context, request_counter).await?;
  65     verify_mod_action(&self.actor, &community, context, request_counter).await?;
  66     Ok(())
  67   }
  68
  69   async fn receive(
  70     self,
  71     context: &Data<LemmyContext>,
  72     request_counter: &mut i32,
  73   ) -> Result<(), LemmyError> {
  74     let community = self.get_community(context, request_counter).await?;
  75
  76     let updated_community = self
  77       .object
  78       .into_form(&community.actor_id.clone().into(), &context.settings())
  79       .await?;
  80     let cf = CommunityForm {
  81       name: updated_community.name,
  82       title: updated_community.title,
  83       description: updated_community.description,
  84       nsfw: updated_community.nsfw,
  85       // TODO: icon and banner would be hosted on the other instance, ideally we would copy it to ours
  86       icon: updated_community.icon,
  87       banner: updated_community.banner,
  88       ..CommunityForm::default()
  89     };
  90     let updated_community = blocking(context.pool(), move |conn| {
  91       Community::update(conn, community.id, &cf)
  92     })
  93     .await??;
  94
  95     send_community_ws_message(
  96       updated_community.id,
  97       UserOperationCrud::EditCommunity,
  98       None,
  99       None,
 100       context,
 101     )
 102     .await?;
 103     Ok(())
 104   }
 105 }
 106
 107 #[async_trait::async_trait(?Send)]
 108 impl GetCommunity for UpdateCommunity {
 109   async fn get_community(
 110     &self,
 111     context: &LemmyContext,
 112     request_counter: &mut i32,
 113   ) -> Result<ApubCommunity, LemmyError> {
 114     let cid = ObjectId::new(self.object.id.clone());
 115     cid.dereference(context, request_counter).await
 116   }
 117 }