crates/apub/src/activities/comment/create_or_update.rs

   1 use crate::{
   2   activities::{
   3     check_community_deleted_or_removed,
   4     comment::get_notif_recipients,
   5     community::{announce::GetCommunity, send_activity_in_community},
   6     generate_activity_id,
   7     verify_activity,
   8     verify_is_public,
   9     verify_person_in_community,
  10   },
  11   activity_lists::AnnouncableActivities,
  12   objects::{comment::ApubComment, community::ApubCommunity, person::ApubPerson},
  13   protocol::activities::{create_or_update::comment::CreateOrUpdateComment, CreateOrUpdateType},
  14 };
  15 use activitystreams_kinds::public;
  16 use lemmy_api_common::{blocking, check_post_deleted_or_removed};
  17 use lemmy_apub_lib::{
  18   data::Data,
  19   object_id::ObjectId,
  20   traits::{ActivityHandler, ActorType, ApubObject},
  21   verify::verify_domains_match,
  22 };
  23 use lemmy_db_schema::{
  24   source::{community::Community, post::Post},
  25   traits::Crud,
  26 };
  27 use lemmy_utils::LemmyError;
  28 use lemmy_websocket::{send::send_comment_ws_message, LemmyContext, UserOperationCrud};
  29
  30 impl CreateOrUpdateComment {
  31   pub async fn send(
  32     comment: ApubComment,
  33     actor: &ApubPerson,
  34     kind: CreateOrUpdateType,
  35     context: &LemmyContext,
  36     request_counter: &mut i32,
  37   ) -> Result<(), LemmyError> {
  38     // TODO: might be helpful to add a comment method to retrieve community directly
  39     let post_id = comment.post_id;
  40     let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
  41     let community_id = post.community_id;
  42     let community: ApubCommunity = blocking(context.pool(), move |conn| {
  43       Community::read(conn, community_id)
  44     })
  45     .await??
  46     .into();
  47
  48     let id = generate_activity_id(
  49       kind.clone(),
  50       &context.settings().get_protocol_and_hostname(),
  51     )?;
  52     let note = comment.into_apub(context).await?;
  53
  54     let create_or_update = CreateOrUpdateComment {
  55       actor: ObjectId::new(actor.actor_id()),
  56       to: vec![public()],
  57       cc: note.cc.clone(),
  58       tag: note.tag.clone(),
  59       object: note,
  60       kind,
  61       id: id.clone(),
  62       unparsed: Default::default(),
  63     };
  64
  65     let tagged_users: Vec<ObjectId<ApubPerson>> = create_or_update
  66       .tag
  67       .iter()
  68       .map(|t| t.href.clone())
  69       .map(ObjectId::new)
  70       .collect();
  71     let mut inboxes = vec![];
  72     for t in tagged_users {
  73       let person = t.dereference(context, request_counter).await?;
  74       inboxes.push(person.shared_inbox_or_inbox_url());
  75     }
  76
  77     let activity = AnnouncableActivities::CreateOrUpdateComment(create_or_update);
  78     send_activity_in_community(activity, &id, actor, &community, inboxes, context).await
  79   }
  80 }
  81
  82 #[async_trait::async_trait(?Send)]
  83 impl ActivityHandler for CreateOrUpdateComment {
  84   type DataType = LemmyContext;
  85
  86   async fn verify(
  87     &self,
  88     context: &Data<LemmyContext>,
  89     request_counter: &mut i32,
  90   ) -> Result<(), LemmyError> {
  91     verify_is_public(&self.to, &self.cc)?;
  92     let post = self.object.get_parents(context, request_counter).await?.0;
  93     let community = self.get_community(context, request_counter).await?;
  94
  95     verify_activity(&self.id, self.actor.inner(), &context.settings())?;
  96     verify_person_in_community(&self.actor, &community, context, request_counter).await?;
  97     verify_domains_match(self.actor.inner(), self.object.id.inner())?;
  98     check_community_deleted_or_removed(&community)?;
  99     check_post_deleted_or_removed(&post)?;
 100
 101     ApubComment::verify(&self.object, self.actor.inner(), context, request_counter).await?;
 102     Ok(())
 103   }
 104
 105   async fn receive(
 106     self,
 107     context: &Data<LemmyContext>,
 108     request_counter: &mut i32,
 109   ) -> Result<(), LemmyError> {
 110     let comment = ApubComment::from_apub(self.object, context, request_counter).await?;
 111     let do_send_email = self.kind == CreateOrUpdateType::Create;
 112     let recipients = get_notif_recipients(
 113       &self.actor,
 114       &comment,
 115       do_send_email,
 116       context,
 117       request_counter,
 118     )
 119     .await?;
 120     let notif_type = match self.kind {
 121       CreateOrUpdateType::Create => UserOperationCrud::CreateComment,
 122       CreateOrUpdateType::Update => UserOperationCrud::EditComment,
 123     };
 124     send_comment_ws_message(
 125       comment.id, notif_type, None, None, None, recipients, context,
 126     )
 127     .await?;
 128     Ok(())
 129   }
 130 }
 131
 132 #[async_trait::async_trait(?Send)]
 133 impl GetCommunity for CreateOrUpdateComment {
 134   async fn get_community(
 135     &self,
 136     context: &LemmyContext,
 137     request_counter: &mut i32,
 138   ) -> Result<ApubCommunity, LemmyError> {
 139     let post = self.object.get_parents(context, request_counter).await?.0;
 140     let community = blocking(context.pool(), move |conn| {
 141       Community::read(conn, post.community_id)
 142     })
 143     .await??;
 144     Ok(community.into())
 145   }
 146 }