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

   1 use crate::{
   2   activities::{
   3     check_community_deleted_or_removed,
   4     community::{announce::GetCommunity, send_activity_in_community},
   5     create_or_update::get_comment_notif_recipients,
   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   #[tracing::instrument(skip(comment, actor, kind, context))]
  32   pub async fn send(
  33     comment: ApubComment,
  34     actor: &ApubPerson,
  35     kind: CreateOrUpdateType,
  36     context: &LemmyContext,
  37     request_counter: &mut i32,
  38   ) -> Result<(), LemmyError> {
  39     // TODO: might be helpful to add a comment method to retrieve community directly
  40     let post_id = comment.post_id;
  41     let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
  42     let community_id = post.community_id;
  43     let community: ApubCommunity = blocking(context.pool(), move |conn| {
  44       Community::read(conn, community_id)
  45     })
  46     .await??
  47     .into();
  48
  49     let id = generate_activity_id(
  50       kind.clone(),
  51       &context.settings().get_protocol_and_hostname(),
  52     )?;
  53     let note = comment.into_apub(context).await?;
  54
  55     let create_or_update = CreateOrUpdateComment {
  56       actor: ObjectId::new(actor.actor_id()),
  57       to: vec![public()],
  58       cc: note.cc.clone(),
  59       tag: note.tag.clone(),
  60       object: note,
  61       kind,
  62       id: id.clone(),
  63       unparsed: Default::default(),
  64     };
  65
  66     let tagged_users: Vec<ObjectId<ApubPerson>> = create_or_update
  67       .tag
  68       .iter()
  69       .map(|t| t.href.clone())
  70       .map(ObjectId::new)
  71       .collect();
  72     let mut inboxes = vec![];
  73     for t in tagged_users {
  74       let person = t
  75         .dereference(context, context.client(), request_counter)
  76         .await?;
  77       inboxes.push(person.shared_inbox_or_inbox_url());
  78     }
  79
  80     let activity = AnnouncableActivities::CreateOrUpdateComment(create_or_update);
  81     send_activity_in_community(activity, &id, actor, &community, inboxes, context).await
  82   }
  83 }
  84
  85 #[async_trait::async_trait(?Send)]
  86 impl ActivityHandler for CreateOrUpdateComment {
  87   type DataType = LemmyContext;
  88
  89   #[tracing::instrument(skip_all)]
  90   async fn verify(
  91     &self,
  92     context: &Data<LemmyContext>,
  93     request_counter: &mut i32,
  94   ) -> Result<(), LemmyError> {
  95     verify_is_public(&self.to, &self.cc)?;
  96     let post = self.object.get_parents(context, request_counter).await?.0;
  97     let community = self.get_community(context, request_counter).await?;
  98
  99     verify_activity(&self.id, self.actor.inner(), &context.settings())?;
 100     verify_person_in_community(&self.actor, &community, context, request_counter).await?;
 101     verify_domains_match(self.actor.inner(), self.object.id.inner())?;
 102     check_community_deleted_or_removed(&community)?;
 103     check_post_deleted_or_removed(&post)?;
 104
 105     ApubComment::verify(&self.object, self.actor.inner(), context, request_counter).await?;
 106     Ok(())
 107   }
 108
 109   #[tracing::instrument(skip_all)]
 110   async fn receive(
 111     self,
 112     context: &Data<LemmyContext>,
 113     request_counter: &mut i32,
 114   ) -> Result<(), LemmyError> {
 115     let comment = ApubComment::from_apub(self.object, context, request_counter).await?;
 116     let do_send_email = self.kind == CreateOrUpdateType::Create;
 117     let recipients = get_comment_notif_recipients(
 118       &self.actor,
 119       &comment,
 120       do_send_email,
 121       context,
 122       request_counter,
 123     )
 124     .await?;
 125     let notif_type = match self.kind {
 126       CreateOrUpdateType::Create => UserOperationCrud::CreateComment,
 127       CreateOrUpdateType::Update => UserOperationCrud::EditComment,
 128     };
 129     send_comment_ws_message(
 130       comment.id, notif_type, None, None, None, recipients, context,
 131     )
 132     .await?;
 133     Ok(())
 134   }
 135 }
 136
 137 #[async_trait::async_trait(?Send)]
 138 impl GetCommunity for CreateOrUpdateComment {
 139   #[tracing::instrument(skip_all)]
 140   async fn get_community(
 141     &self,
 142     context: &LemmyContext,
 143     request_counter: &mut i32,
 144   ) -> Result<ApubCommunity, LemmyError> {
 145     let post = self.object.get_parents(context, request_counter).await?.0;
 146     let community = blocking(context.pool(), move |conn| {
 147       Community::read(conn, post.community_id)
 148     })
 149     .await??;
 150     Ok(community.into())
 151   }
 152 }