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

   1 use crate::{
   2   activities::{
   3     community::{announce::GetCommunity, send_activity_in_community},
   4     generate_activity_id,
   5     verify_is_public,
   6     verify_mod_action,
   7     verify_person_in_community,
   8   },
   9   activity_lists::AnnouncableActivities,
  10   local_instance,
  11   objects::{community::ApubCommunity, person::ApubPerson},
  12   protocol::activities::community::update::UpdateCommunity,
  13   ActorType,
  14 };
  15 use activitypub_federation::{
  16   core::object_id::ObjectId,
  17   data::Data,
  18   traits::{ActivityHandler, ApubObject},
  19 };
  20 use activitystreams_kinds::{activity::UpdateType, public};
  21 use lemmy_api_common::utils::blocking;
  22 use lemmy_db_schema::{
  23   source::community::{Community, CommunityForm},
  24   traits::Crud,
  25 };
  26 use lemmy_utils::error::LemmyError;
  27 use lemmy_websocket::{send::send_community_ws_message, LemmyContext, UserOperationCrud};
  28 use url::Url;
  29
  30 impl UpdateCommunity {
  31   #[tracing::instrument(skip_all)]
  32   pub async fn send(
  33     community: ApubCommunity,
  34     actor: &ApubPerson,
  35     context: &LemmyContext,
  36   ) -> Result<(), LemmyError> {
  37     let id = generate_activity_id(
  38       UpdateType::Update,
  39       &context.settings().get_protocol_and_hostname(),
  40     )?;
  41     let update = UpdateCommunity {
  42       actor: ObjectId::new(actor.actor_id()),
  43       to: vec![public()],
  44       object: Box::new(community.clone().into_apub(context).await?),
  45       cc: vec![community.actor_id()],
  46       kind: UpdateType::Update,
  47       id: id.clone(),
  48       unparsed: Default::default(),
  49     };
  50
  51     let activity = AnnouncableActivities::UpdateCommunity(update);
  52     send_activity_in_community(activity, actor, &community, vec![], context).await
  53   }
  54 }
  55
  56 #[async_trait::async_trait(?Send)]
  57 impl ActivityHandler for UpdateCommunity {
  58   type DataType = LemmyContext;
  59   type Error = LemmyError;
  60
  61   fn id(&self) -> &Url {
  62     &self.id
  63   }
  64
  65   fn actor(&self) -> &Url {
  66     self.actor.inner()
  67   }
  68
  69   #[tracing::instrument(skip_all)]
  70   async fn verify(
  71     &self,
  72     context: &Data<LemmyContext>,
  73     request_counter: &mut i32,
  74   ) -> Result<(), LemmyError> {
  75     verify_is_public(&self.to, &self.cc)?;
  76     let community = self.get_community(context, request_counter).await?;
  77     verify_person_in_community(&self.actor, &community, context, request_counter).await?;
  78     verify_mod_action(
  79       &self.actor,
  80       self.object.id.inner(),
  81       community.id,
  82       context,
  83       request_counter,
  84     )
  85     .await?;
  86     ApubCommunity::verify(
  87       &self.object,
  88       &community.actor_id.clone().into(),
  89       context,
  90       request_counter,
  91     )
  92     .await?;
  93     Ok(())
  94   }
  95
  96   #[tracing::instrument(skip_all)]
  97   async fn receive(
  98     self,
  99     context: &Data<LemmyContext>,
 100     request_counter: &mut i32,
 101   ) -> Result<(), LemmyError> {
 102     let community = self.get_community(context, request_counter).await?;
 103
 104     let updated_community = self.object.into_form();
 105     let cf = CommunityForm {
 106       name: updated_community.name,
 107       title: updated_community.title,
 108       description: updated_community.description,
 109       nsfw: updated_community.nsfw,
 110       // TODO: icon and banner would be hosted on the other instance, ideally we would copy it to ours
 111       icon: updated_community.icon,
 112       banner: updated_community.banner,
 113       ..CommunityForm::default()
 114     };
 115     let updated_community = blocking(context.pool(), move |conn| {
 116       Community::update(conn, community.id, &cf)
 117     })
 118     .await??;
 119
 120     send_community_ws_message(
 121       updated_community.id,
 122       UserOperationCrud::EditCommunity,
 123       None,
 124       None,
 125       context,
 126     )
 127     .await?;
 128     Ok(())
 129   }
 130 }
 131
 132 #[async_trait::async_trait(?Send)]
 133 impl GetCommunity for UpdateCommunity {
 134   #[tracing::instrument(skip_all)]
 135   async fn get_community(
 136     &self,
 137     context: &LemmyContext,
 138     request_counter: &mut i32,
 139   ) -> Result<ApubCommunity, LemmyError> {
 140     let cid = ObjectId::new(self.object.id.clone());
 141     cid
 142       .dereference(context, local_instance(context), request_counter)
 143       .await
 144   }
 145 }