3 community::announce::GetCommunity,
4 deletion::{receive_delete_action, verify_delete_activity, DeletableObjects},
8 objects::{community::ApubCommunity, person::ApubPerson},
9 protocol::{activities::deletion::delete::Delete, IdOrNestedObject},
11 use activitypub_federation::{core::object_id::ObjectId, data::Data, traits::ActivityHandler};
12 use activitystreams_kinds::activity::DeleteType;
14 use lemmy_db_schema::{
16 comment::{Comment, CommentUpdateForm},
17 community::{Community, CommunityUpdateForm},
22 ModRemoveCommunityForm,
26 post::{Post, PostUpdateForm},
30 use lemmy_utils::error::LemmyError;
31 use lemmy_websocket::{
32 send::{send_comment_ws_message_simple, send_community_ws_message, send_post_ws_message},
38 #[async_trait::async_trait(?Send)]
39 impl ActivityHandler for Delete {
40 type DataType = LemmyContext;
41 type Error = LemmyError;
43 fn id(&self) -> &Url {
47 fn actor(&self) -> &Url {
51 #[tracing::instrument(skip_all)]
54 context: &Data<LemmyContext>,
55 request_counter: &mut i32,
56 ) -> Result<(), LemmyError> {
57 verify_delete_activity(self, self.summary.is_some(), context, request_counter).await?;
61 #[tracing::instrument(skip_all)]
64 context: &Data<LemmyContext>,
65 request_counter: &mut i32,
66 ) -> Result<(), LemmyError> {
67 if let Some(reason) = self.summary {
68 // We set reason to empty string if it doesn't exist, to distinguish between delete and
69 // remove. Here we change it back to option, so we don't write it to db.
70 let reason = if reason.is_empty() {
75 receive_remove_action(
78 .dereference(context, local_instance(context).await, request_counter)
86 receive_delete_action(
99 pub(in crate::activities::deletion) fn new(
101 object: DeletableObjects,
103 community: Option<&Community>,
104 summary: Option<String>,
105 context: &LemmyContext,
106 ) -> Result<Delete, LemmyError> {
107 let id = generate_activity_id(
109 &context.settings().get_protocol_and_hostname(),
111 let cc: Option<Url> = community.map(|c| c.actor_id.clone().into());
113 actor: ObjectId::new(actor.actor_id.clone()),
115 object: IdOrNestedObject::Id(object.id()),
116 cc: cc.into_iter().collect(),
117 kind: DeleteType::Delete,
124 #[tracing::instrument(skip_all)]
125 pub(in crate::activities) async fn receive_remove_action(
128 reason: Option<String>,
129 context: &LemmyContext,
130 ) -> Result<(), LemmyError> {
131 use UserOperationCrud::*;
132 match DeletableObjects::read_from_db(object, context).await? {
133 DeletableObjects::Community(community) => {
135 return Err(LemmyError::from_message(
136 "Only local admin can remove community",
139 let form = ModRemoveCommunityForm {
140 mod_person_id: actor.id,
141 community_id: community.id,
146 ModRemoveCommunity::create(context.pool(), &form).await?;
147 let deleted_community = Community::update(
150 &CommunityUpdateForm::builder().removed(Some(true)).build(),
154 send_community_ws_message(deleted_community.id, RemoveCommunity, None, None, context).await?;
156 DeletableObjects::Post(post) => {
157 let form = ModRemovePostForm {
158 mod_person_id: actor.id,
163 ModRemovePost::create(context.pool(), &form).await?;
164 let removed_post = Post::update(
167 &PostUpdateForm::builder().removed(Some(true)).build(),
171 send_post_ws_message(removed_post.id, RemovePost, None, None, context).await?;
173 DeletableObjects::Comment(comment) => {
174 let form = ModRemoveCommentForm {
175 mod_person_id: actor.id,
176 comment_id: comment.id,
180 ModRemoveComment::create(context.pool(), &form).await?;
181 let removed_comment = Comment::update(
184 &CommentUpdateForm::builder().removed(Some(true)).build(),
188 send_comment_ws_message_simple(removed_comment.id, RemoveComment, context).await?;
190 DeletableObjects::PrivateMessage(_) => unimplemented!(),
195 #[async_trait::async_trait(?Send)]
196 impl GetCommunity for Delete {
197 #[tracing::instrument(skip_all)]
198 async fn get_community(
200 context: &LemmyContext,
201 _request_counter: &mut i32,
202 ) -> Result<ApubCommunity, LemmyError> {
203 let community_id = match DeletableObjects::read_from_db(self.object.id(), context).await? {
204 DeletableObjects::Community(c) => c.id,
205 DeletableObjects::Comment(c) => {
206 let post = Post::read(context.pool(), c.post_id).await?;
209 DeletableObjects::Post(p) => p.community_id,
210 DeletableObjects::PrivateMessage(_) => {
211 return Err(anyhow!("Private message is not part of community").into())
214 let community = Community::read(context.pool(), community_id).await?;