2 activities::{generate_activity_id, send_lemmy_activity, verify_activity, verify_is_public},
3 activity_lists::AnnouncableActivities,
4 http::ActivityCommonFields,
6 objects::community::ApubCommunity,
7 protocol::activities::{community::announce::AnnounceActivity, CreateOrUpdateType},
9 use activitystreams_kinds::{activity::AnnounceType, public};
13 traits::{ActivityHandler, ActorType},
15 use lemmy_utils::LemmyError;
16 use lemmy_websocket::LemmyContext;
18 #[async_trait::async_trait(?Send)]
19 pub(crate) trait GetCommunity {
20 async fn get_community(
22 context: &LemmyContext,
23 request_counter: &mut i32,
24 ) -> Result<ApubCommunity, LemmyError>;
27 impl AnnounceActivity {
29 object: AnnouncableActivities,
30 community: &ApubCommunity,
31 context: &LemmyContext,
32 ) -> Result<AnnounceActivity, LemmyError> {
34 actor: ObjectId::new(community.actor_id()),
37 cc: vec![community.followers_url.clone().into()],
38 kind: AnnounceType::Announce,
39 id: generate_activity_id(
40 &AnnounceType::Announce,
41 &context.settings().get_protocol_and_hostname(),
43 unparsed: Default::default(),
48 object: AnnouncableActivities,
49 community: &ApubCommunity,
50 context: &LemmyContext,
51 ) -> Result<(), LemmyError> {
52 let announce = AnnounceActivity::new(object.clone(), community, context)?;
53 let inboxes = community.get_follower_inboxes(context).await?;
64 // Pleroma and Mastodon can't handle activities like Announce/Create/Page. So for
65 // compatibility, we also send Announce/Page so that they can follow Lemmy communities.
66 use AnnouncableActivities::*;
67 let object = match object {
68 CreateOrUpdatePost(c) if c.kind == CreateOrUpdateType::Create => Page(c.object),
71 let announce_compat = AnnounceActivity::new(object, community, context)?;
85 #[async_trait::async_trait(?Send)]
86 impl ActivityHandler for AnnounceActivity {
87 type DataType = LemmyContext;
90 context: &Data<LemmyContext>,
91 request_counter: &mut i32,
92 ) -> Result<(), LemmyError> {
93 verify_is_public(&self.to, &self.cc)?;
94 verify_activity(&self.id, self.actor.inner(), &context.settings())?;
95 self.object.verify(context, request_counter).await?;
101 context: &Data<LemmyContext>,
102 request_counter: &mut i32,
103 ) -> Result<(), LemmyError> {
104 // TODO: this can probably be implemented in a cleaner way
106 // Dont insert these into activities table, as they are not activities.
107 AnnouncableActivities::Page(_) => {}
109 let object_value = serde_json::to_value(&self.object)?;
110 let object_data: ActivityCommonFields = serde_json::from_value(object_value.to_owned())?;
112 insert_activity(&object_data.id, object_value, false, true, context.pool()).await?;
115 self.object.receive(context, request_counter).await