3 check_community_deleted_or_removed,
4 community::{announce::GetCommunity, send_activity_in_community},
9 verify_person_in_community,
11 activity_lists::AnnouncableActivities,
12 objects::{community::ApubCommunity, person::ApubPerson, post::ApubPost},
13 protocol::activities::{create_or_update::post::CreateOrUpdatePost, CreateOrUpdateType},
15 use activitystreams_kinds::public;
16 use lemmy_api_common::utils::blocking;
20 traits::{ActivityHandler, ActorType, ApubObject},
21 verify::{verify_domains_match, verify_urls_match},
23 use lemmy_db_schema::{
26 post::{PostLike, PostLikeForm},
28 traits::{Crud, Likeable},
30 use lemmy_utils::LemmyError;
31 use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud};
33 impl CreateOrUpdatePost {
34 pub(crate) async fn new(
37 community: &ApubCommunity,
38 kind: CreateOrUpdateType,
39 context: &LemmyContext,
40 ) -> Result<CreateOrUpdatePost, LemmyError> {
41 let id = generate_activity_id(
43 &context.settings().get_protocol_and_hostname(),
45 Ok(CreateOrUpdatePost {
46 actor: ObjectId::new(actor.actor_id()),
48 object: post.into_apub(context).await?,
49 cc: vec![community.actor_id()],
52 unparsed: Default::default(),
56 #[tracing::instrument(skip_all)]
60 kind: CreateOrUpdateType,
61 context: &LemmyContext,
62 ) -> Result<(), LemmyError> {
63 let community_id = post.community_id;
64 let community: ApubCommunity = blocking(context.pool(), move |conn| {
65 Community::read(conn, community_id)
70 let create_or_update = CreateOrUpdatePost::new(post, actor, &community, kind, context).await?;
71 let id = create_or_update.id.clone();
72 let activity = AnnouncableActivities::CreateOrUpdatePost(Box::new(create_or_update));
73 send_activity_in_community(activity, &id, actor, &community, vec![], context).await
77 #[async_trait::async_trait(?Send)]
78 impl ActivityHandler for CreateOrUpdatePost {
79 type DataType = LemmyContext;
81 #[tracing::instrument(skip_all)]
84 context: &Data<LemmyContext>,
85 request_counter: &mut i32,
86 ) -> Result<(), LemmyError> {
87 verify_is_public(&self.to, &self.cc)?;
88 verify_activity(&self.id, self.actor.inner(), &context.settings())?;
89 let community = self.get_community(context, request_counter).await?;
90 verify_person_in_community(&self.actor, &community, context, request_counter).await?;
91 check_community_deleted_or_removed(&community)?;
94 CreateOrUpdateType::Create => {
95 verify_domains_match(self.actor.inner(), self.object.id.inner())?;
96 verify_urls_match(self.actor.inner(), self.object.attributed_to.inner())?;
97 // Check that the post isnt locked or stickied, as that isnt possible for newly created posts.
98 // However, when fetching a remote post we generate a new create activity with the current
99 // locked/stickied value, so this check may fail. So only check if its a local community,
100 // because then we will definitely receive all create and update activities separately.
101 let is_stickied_or_locked =
102 self.object.stickied == Some(true) || self.object.comments_enabled == Some(false);
103 if community.local && is_stickied_or_locked {
104 return Err(LemmyError::from_message(
105 "New post cannot be stickied or locked",
109 CreateOrUpdateType::Update => {
110 let is_mod_action = self.object.is_mod_action(context).await?;
114 self.object.id.inner(),
121 verify_domains_match(self.actor.inner(), self.object.id.inner())?;
122 verify_urls_match(self.actor.inner(), self.object.attributed_to.inner())?;
126 ApubPost::verify(&self.object, self.actor.inner(), context, request_counter).await?;
130 #[tracing::instrument(skip_all)]
133 context: &Data<LemmyContext>,
134 request_counter: &mut i32,
135 ) -> Result<(), LemmyError> {
136 let post = ApubPost::from_apub(self.object, context, request_counter).await?;
138 // author likes their own post by default
139 let like_form = PostLikeForm {
141 person_id: post.creator_id,
144 blocking(context.pool(), move |conn: &'_ _| {
145 PostLike::like(conn, &like_form)
149 let notif_type = match self.kind {
150 CreateOrUpdateType::Create => UserOperationCrud::CreatePost,
151 CreateOrUpdateType::Update => UserOperationCrud::EditPost,
153 send_post_ws_message(post.id, notif_type, None, None, context).await?;
158 #[async_trait::async_trait(?Send)]
159 impl GetCommunity for CreateOrUpdatePost {
160 #[tracing::instrument(skip_all)]
161 async fn get_community(
163 context: &LemmyContext,
164 request_counter: &mut i32,
165 ) -> Result<ApubCommunity, LemmyError> {
168 .extract_community(context, request_counter)