crates/apub/src/activities/private_message/delete.rs

   1 use crate::{
   2   activities::{generate_activity_id, verify_activity, verify_person},
   3   activity_queue::send_activity_new,
   4   extensions::context::lemmy_context,
   5   fetcher::object_id::ObjectId,
   6   ActorType,
   7 };
   8 use activitystreams::{
   9   activity::kind::DeleteType,
  10   base::AnyBase,
  11   primitives::OneOrMany,
  12   unparsed::Unparsed,
  13 };
  14 use lemmy_api_common::blocking;
  15 use lemmy_apub_lib::{verify_domains_match, ActivityFields, ActivityHandler};
  16 use lemmy_db_queries::{source::private_message::PrivateMessage_, ApubObject, Crud};
  17 use lemmy_db_schema::source::{person::Person, private_message::PrivateMessage};
  18 use lemmy_utils::LemmyError;
  19 use lemmy_websocket::{send::send_pm_ws_message, LemmyContext, UserOperationCrud};
  20 use serde::{Deserialize, Serialize};
  21 use url::Url;
  22
  23 #[derive(Clone, Debug, Deserialize, Serialize, ActivityFields)]
  24 #[serde(rename_all = "camelCase")]
  25 pub struct DeletePrivateMessage {
  26   actor: ObjectId<Person>,
  27   to: ObjectId<Person>,
  28   pub(in crate::activities::private_message) object: Url,
  29   #[serde(rename = "type")]
  30   kind: DeleteType,
  31   id: Url,
  32   #[serde(rename = "@context")]
  33   context: OneOrMany<AnyBase>,
  34   #[serde(flatten)]
  35   unparsed: Unparsed,
  36 }
  37
  38 impl DeletePrivateMessage {
  39   pub(in crate::activities::private_message) fn new(
  40     actor: &Person,
  41     pm: &PrivateMessage,
  42     context: &LemmyContext,
  43   ) -> Result<DeletePrivateMessage, LemmyError> {
  44     Ok(DeletePrivateMessage {
  45       actor: ObjectId::new(actor.actor_id()),
  46       to: ObjectId::new(actor.actor_id()),
  47       object: pm.ap_id.clone().into(),
  48       kind: DeleteType::Delete,
  49       id: generate_activity_id(
  50         DeleteType::Delete,
  51         &context.settings().get_protocol_and_hostname(),
  52       )?,
  53       context: lemmy_context(),
  54       unparsed: Default::default(),
  55     })
  56   }
  57   pub async fn send(
  58     actor: &Person,
  59     pm: &PrivateMessage,
  60     context: &LemmyContext,
  61   ) -> Result<(), LemmyError> {
  62     let delete = DeletePrivateMessage::new(actor, pm, context)?;
  63     let delete_id = delete.id.clone();
  64
  65     let recipient_id = pm.recipient_id;
  66     let recipient =
  67       blocking(context.pool(), move |conn| Person::read(conn, recipient_id)).await??;
  68     let inbox = vec![recipient.get_shared_inbox_or_inbox_url()];
  69     send_activity_new(context, &delete, &delete_id, actor, inbox, true).await
  70   }
  71 }
  72
  73 #[async_trait::async_trait(?Send)]
  74 impl ActivityHandler for DeletePrivateMessage {
  75   async fn verify(
  76     &self,
  77     context: &LemmyContext,
  78     request_counter: &mut i32,
  79   ) -> Result<(), LemmyError> {
  80     verify_activity(self, &context.settings())?;
  81     verify_person(&self.actor, context, request_counter).await?;
  82     verify_domains_match(self.actor.inner(), &self.object)?;
  83     Ok(())
  84   }
  85
  86   async fn receive(
  87     self,
  88     context: &LemmyContext,
  89     _request_counter: &mut i32,
  90   ) -> Result<(), LemmyError> {
  91     let ap_id = self.object.clone();
  92     let private_message = blocking(context.pool(), move |conn| {
  93       PrivateMessage::read_from_apub_id(conn, &ap_id.into())
  94     })
  95     .await??;
  96     let deleted_private_message = blocking(context.pool(), move |conn| {
  97       PrivateMessage::update_deleted(conn, private_message.id, true)
  98     })
  99     .await??;
 100
 101     send_pm_ws_message(
 102       deleted_private_message.id,
 103       UserOperationCrud::DeletePrivateMessage,
 104       None,
 105       context,
 106     )
 107     .await?;
 108
 109     Ok(())
 110   }
 111 }