use crate::{ apub::{ activities::generate_activity_id, activity_queue::send_activity, check_actor_domain, check_is_apub_id_valid, create_tombstone, fetcher::get_or_fetch_and_upsert_user, insert_activity, ActorType, ApubObjectType, FromApub, ToApub, }, blocking, DbPool, LemmyContext, LemmyError, }; use activitystreams::{ activity::{ kind::{CreateType, DeleteType, UndoType, UpdateType}, Create, Delete, Undo, Update, }, object::{kind::NoteType, Note, Tombstone}, prelude::*, }; use anyhow::Context; use lemmy_db::{ private_message::{PrivateMessage, PrivateMessageForm}, user::User_, Crud, }; use lemmy_utils::{convert_datetime, location_info}; use url::Url; #[async_trait::async_trait(?Send)] impl ToApub for PrivateMessage { type Response = Note; async fn to_apub(&self, pool: &DbPool) -> Result { let mut private_message = Note::new(); let creator_id = self.creator_id; let creator = blocking(pool, move |conn| User_::read(conn, creator_id)).await??; let recipient_id = self.recipient_id; let recipient = blocking(pool, move |conn| User_::read(conn, recipient_id)).await??; private_message .set_context(activitystreams::context()) .set_id(Url::parse(&self.ap_id.to_owned())?) .set_published(convert_datetime(self.published)) .set_content(self.content.to_owned()) .set_to(recipient.actor_id) .set_attributed_to(creator.actor_id); if let Some(u) = self.updated { private_message.set_updated(convert_datetime(u)); } Ok(private_message) } fn to_tombstone(&self) -> Result { create_tombstone(self.deleted, &self.ap_id, self.updated, NoteType::Note) } } #[async_trait::async_trait(?Send)] impl FromApub for PrivateMessageForm { type ApubType = Note; /// Parse an ActivityPub note received from another instance into a Lemmy Private message async fn from_apub( note: &Note, context: &LemmyContext, expected_domain: Option, ) -> Result { let creator_actor_id = note .attributed_to() .context(location_info!())? .clone() .single_xsd_any_uri() .context(location_info!())?; let creator = get_or_fetch_and_upsert_user(&creator_actor_id, context).await?; let recipient_actor_id = note .to() .context(location_info!())? .clone() .single_xsd_any_uri() .context(location_info!())?; let recipient = get_or_fetch_and_upsert_user(&recipient_actor_id, context).await?; let ap_id = note.id_unchecked().context(location_info!())?.to_string(); check_is_apub_id_valid(&Url::parse(&ap_id)?)?; Ok(PrivateMessageForm { creator_id: creator.id, recipient_id: recipient.id, content: note .content() .context(location_info!())? .as_single_xsd_string() .context(location_info!())? .to_string(), published: note.published().map(|u| u.to_owned().naive_local()), updated: note.updated().map(|u| u.to_owned().naive_local()), deleted: None, read: None, ap_id: Some(check_actor_domain(note, expected_domain)?), local: false, }) } } #[async_trait::async_trait(?Send)] impl ApubObjectType for PrivateMessage { /// Send out information about a newly created private message async fn send_create(&self, creator: &User_, context: &LemmyContext) -> Result<(), LemmyError> { let note = self.to_apub(context.pool()).await?; let recipient_id = self.recipient_id; let recipient = blocking(context.pool(), move |conn| User_::read(conn, recipient_id)).await??; let mut create = Create::new(creator.actor_id.to_owned(), note.into_any_base()?); let to = recipient.get_inbox_url()?; create .set_context(activitystreams::context()) .set_id(generate_activity_id(CreateType::Create)?) .set_to(to.clone()); insert_activity(creator.id, create.clone(), true, context.pool()).await?; send_activity(context.activity_queue(), create, creator, vec![to])?; Ok(()) } /// Send out information about an edited post, to the followers of the community. async fn send_update(&self, creator: &User_, context: &LemmyContext) -> Result<(), LemmyError> { let note = self.to_apub(context.pool()).await?; let recipient_id = self.recipient_id; let recipient = blocking(context.pool(), move |conn| User_::read(conn, recipient_id)).await??; let mut update = Update::new(creator.actor_id.to_owned(), note.into_any_base()?); let to = recipient.get_inbox_url()?; update .set_context(activitystreams::context()) .set_id(generate_activity_id(UpdateType::Update)?) .set_to(to.clone()); insert_activity(creator.id, update.clone(), true, context.pool()).await?; send_activity(context.activity_queue(), update, creator, vec![to])?; Ok(()) } async fn send_delete(&self, creator: &User_, context: &LemmyContext) -> Result<(), LemmyError> { let note = self.to_apub(context.pool()).await?; let recipient_id = self.recipient_id; let recipient = blocking(context.pool(), move |conn| User_::read(conn, recipient_id)).await??; let mut delete = Delete::new(creator.actor_id.to_owned(), note.into_any_base()?); let to = recipient.get_inbox_url()?; delete .set_context(activitystreams::context()) .set_id(generate_activity_id(DeleteType::Delete)?) .set_to(to.clone()); insert_activity(creator.id, delete.clone(), true, context.pool()).await?; send_activity(context.activity_queue(), delete, creator, vec![to])?; Ok(()) } async fn send_undo_delete( &self, creator: &User_, context: &LemmyContext, ) -> Result<(), LemmyError> { let note = self.to_apub(context.pool()).await?; let recipient_id = self.recipient_id; let recipient = blocking(context.pool(), move |conn| User_::read(conn, recipient_id)).await??; let mut delete = Delete::new(creator.actor_id.to_owned(), note.into_any_base()?); let to = recipient.get_inbox_url()?; delete .set_context(activitystreams::context()) .set_id(generate_activity_id(DeleteType::Delete)?) .set_to(to.clone()); // Undo that fake activity let mut undo = Undo::new(creator.actor_id.to_owned(), delete.into_any_base()?); undo .set_context(activitystreams::context()) .set_id(generate_activity_id(UndoType::Undo)?) .set_to(to.clone()); insert_activity(creator.id, undo.clone(), true, context.pool()).await?; send_activity(context.activity_queue(), undo, creator, vec![to])?; Ok(()) } async fn send_remove(&self, _mod_: &User_, _context: &LemmyContext) -> Result<(), LemmyError> { unimplemented!() } async fn send_undo_remove( &self, _mod_: &User_, _context: &LemmyContext, ) -> Result<(), LemmyError> { unimplemented!() } }