lemmy/server/src/apub/private_message.rs

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use crate::{
apub::{
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activities::send_activity,
create_tombstone,
fetcher::get_or_fetch_and_upsert_remote_user,
insert_activity,
ApubObjectType,
FromApub,
ToApub,
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},
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blocking,
DbPool,
LemmyError,
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};
use activitystreams_new::{
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activity::{Create, Delete, Undo, Update},
context,
object::{kind::NoteType, Note, Tombstone},
prelude::*,
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};
use actix_web::client::Client;
use lemmy_db::{
private_message::{PrivateMessage, PrivateMessageForm},
user::User_,
Crud,
};
use lemmy_utils::convert_datetime;
use url::Url;
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#[async_trait::async_trait(?Send)]
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impl ToApub for PrivateMessage {
type Response = Note;
async fn to_apub(&self, pool: &DbPool) -> Result<Note, LemmyError> {
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??;
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private_message
.set_context(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);
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if let Some(u) = self.updated {
private_message.set_updated(convert_datetime(u));
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}
Ok(private_message)
}
fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
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create_tombstone(
self.deleted,
&self.ap_id,
self.updated,
NoteType::Note.to_string(),
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)
}
}
#[async_trait::async_trait(?Send)]
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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,
client: &Client,
pool: &DbPool,
actor_id: &Url,
) -> Result<PrivateMessageForm, LemmyError> {
let creator_actor_id = note
.attributed_to()
.unwrap()
.clone()
.single_xsd_any_uri()
.unwrap();
let creator = get_or_fetch_and_upsert_remote_user(&creator_actor_id, client, pool).await?;
let recipient_actor_id = note.to().unwrap().clone().single_xsd_any_uri().unwrap();
let recipient = get_or_fetch_and_upsert_remote_user(&recipient_actor_id, client, pool).await?;
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Ok(PrivateMessageForm {
creator_id: creator.id,
recipient_id: recipient.id,
content: note
.content()
.unwrap()
.as_single_xsd_string()
.unwrap()
.to_string(),
published: note.published().map(|u| u.to_owned().naive_local()),
updated: note.updated().map(|u| u.to_owned().naive_local()),
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deleted: None,
read: None,
ap_id: note.id(actor_id.domain().unwrap())?.unwrap().to_string(),
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local: false,
})
}
}
#[async_trait::async_trait(?Send)]
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impl ApubObjectType for PrivateMessage {
/// Send out information about a newly created private message
async fn send_create(
&self,
creator: &User_,
client: &Client,
pool: &DbPool,
) -> Result<(), LemmyError> {
let note = self.to_apub(pool).await?;
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let id = format!("{}/create/{}", self.ap_id, uuid::Uuid::new_v4());
let recipient_id = self.recipient_id;
let recipient = blocking(pool, move |conn| User_::read(conn, recipient_id)).await??;
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let mut create = Create::new(creator.actor_id.to_owned(), note.into_any_base()?);
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let to = format!("{}/inbox", recipient.actor_id);
create
.set_context(context())
.set_id(Url::parse(&id)?)
.set_to(to.clone());
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insert_activity(creator.id, create.clone(), true, pool).await?;
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send_activity(client, &create.into_any_base()?, creator, vec![to]).await?;
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Ok(())
}
/// Send out information about an edited post, to the followers of the community.
async fn send_update(
&self,
creator: &User_,
client: &Client,
pool: &DbPool,
) -> Result<(), LemmyError> {
let note = self.to_apub(pool).await?;
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let id = format!("{}/update/{}", self.ap_id, uuid::Uuid::new_v4());
let recipient_id = self.recipient_id;
let recipient = blocking(pool, move |conn| User_::read(conn, recipient_id)).await??;
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let mut update = Update::new(creator.actor_id.to_owned(), note.into_any_base()?);
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let to = format!("{}/inbox", recipient.actor_id);
update
.set_context(context())
.set_id(Url::parse(&id)?)
.set_to(to.clone());
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insert_activity(creator.id, update.clone(), true, pool).await?;
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send_activity(client, &update.into_any_base()?, creator, vec![to]).await?;
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Ok(())
}
async fn send_delete(
&self,
creator: &User_,
client: &Client,
pool: &DbPool,
) -> Result<(), LemmyError> {
let note = self.to_apub(pool).await?;
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let id = format!("{}/delete/{}", self.ap_id, uuid::Uuid::new_v4());
let recipient_id = self.recipient_id;
let recipient = blocking(pool, move |conn| User_::read(conn, recipient_id)).await??;
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let mut delete = Delete::new(creator.actor_id.to_owned(), note.into_any_base()?);
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let to = format!("{}/inbox", recipient.actor_id);
delete
.set_context(context())
.set_id(Url::parse(&id)?)
.set_to(to.clone());
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insert_activity(creator.id, delete.clone(), true, pool).await?;
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send_activity(client, &delete.into_any_base()?, creator, vec![to]).await?;
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Ok(())
}
async fn send_undo_delete(
&self,
creator: &User_,
client: &Client,
pool: &DbPool,
) -> Result<(), LemmyError> {
let note = self.to_apub(pool).await?;
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let id = format!("{}/delete/{}", self.ap_id, uuid::Uuid::new_v4());
let recipient_id = self.recipient_id;
let recipient = blocking(pool, move |conn| User_::read(conn, recipient_id)).await??;
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let mut delete = Delete::new(creator.actor_id.to_owned(), note.into_any_base()?);
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let to = format!("{}/inbox", recipient.actor_id);
delete
.set_context(context())
.set_id(Url::parse(&id)?)
.set_to(to.clone());
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// TODO
// Undo that fake activity
let undo_id = format!("{}/undo/delete/{}", self.ap_id, uuid::Uuid::new_v4());
let mut undo = Undo::new(creator.actor_id.to_owned(), delete.into_any_base()?);
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undo
.set_context(context())
.set_id(Url::parse(&undo_id)?)
.set_to(to.clone());
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insert_activity(creator.id, undo.clone(), true, pool).await?;
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send_activity(client, &undo.into_any_base()?, creator, vec![to]).await?;
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Ok(())
}
async fn send_remove(
&self,
_mod_: &User_,
_client: &Client,
_pool: &DbPool,
) -> Result<(), LemmyError> {
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unimplemented!()
}
async fn send_undo_remove(
&self,
_mod_: &User_,
_client: &Client,
_pool: &DbPool,
) -> Result<(), LemmyError> {
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unimplemented!()
}
}