use crate::{ api::{check_slurs, check_slurs_opt}, apub::{ activities::generate_activity_id, activity_queue::send_activity, check_actor_domain, create_apub_response, fetcher::get_or_fetch_and_upsert_actor, insert_activity, ActorType, FromApub, PersonExt, ToApub, }, blocking, DbPool, LemmyContext, }; use activitystreams::{ activity::{ kind::{FollowType, UndoType}, Follow, Undo, }, actor::{ApActor, Endpoints, Person}, object::{Image, Tombstone}, prelude::*, }; use activitystreams_ext::Ext1; use actix_web::{body::Body, web, HttpResponse}; use anyhow::Context; use lemmy_db::{ naive_now, user::{UserForm, User_}, }; use lemmy_utils::{convert_datetime, location_info, LemmyError}; use serde::Deserialize; use url::Url; #[derive(Deserialize)] pub struct UserQuery { user_name: String, } #[async_trait::async_trait(?Send)] impl ToApub for User_ { type Response = PersonExt; // Turn a Lemmy Community into an ActivityPub group that can be sent out over the network. async fn to_apub(&self, _pool: &DbPool) -> Result { // TODO go through all these to_string and to_owned() let mut person = Person::new(); person .set_context(activitystreams::context()) .set_id(Url::parse(&self.actor_id)?) .set_name(self.name.to_owned()) .set_published(convert_datetime(self.published)); if let Some(u) = self.updated { person.set_updated(convert_datetime(u)); } if let Some(avatar_url) = &self.avatar { let mut image = Image::new(); image.set_url(avatar_url.to_owned()); person.set_icon(image.into_any_base()?); } if let Some(banner_url) = &self.banner { let mut image = Image::new(); image.set_url(banner_url.to_owned()); person.set_image(image.into_any_base()?); } if let Some(bio) = &self.bio { person.set_summary(bio.to_owned()); } let mut ap_actor = ApActor::new(self.get_inbox_url()?, person); ap_actor .set_outbox(self.get_outbox_url()?) .set_followers(self.get_followers_url()?) .set_following(self.get_following_url().parse()?) .set_liked(self.get_liked_url().parse()?) .set_endpoints(Endpoints { shared_inbox: Some(self.get_shared_inbox_url()?), ..Default::default() }); if let Some(i) = &self.preferred_username { ap_actor.set_preferred_username(i.to_owned()); } Ok(Ext1::new(ap_actor, self.get_public_key_ext()?)) } fn to_tombstone(&self) -> Result { unimplemented!() } } #[async_trait::async_trait(?Send)] impl ActorType for User_ { fn actor_id_str(&self) -> String { self.actor_id.to_owned() } fn public_key(&self) -> Option { self.public_key.to_owned() } fn private_key(&self) -> Option { self.private_key.to_owned() } /// As a given local user, send out a follow request to a remote community. async fn send_follow( &self, follow_actor_id: &Url, context: &LemmyContext, ) -> Result<(), LemmyError> { let mut follow = Follow::new(self.actor_id.to_owned(), follow_actor_id.as_str()); follow .set_context(activitystreams::context()) .set_id(generate_activity_id(FollowType::Follow)?); let follow_actor = get_or_fetch_and_upsert_actor(follow_actor_id, context).await?; let to = follow_actor.get_inbox_url()?; insert_activity(self.id, follow.clone(), true, context.pool()).await?; send_activity(context.activity_queue(), follow, self, vec![to])?; Ok(()) } async fn send_unfollow( &self, follow_actor_id: &Url, context: &LemmyContext, ) -> Result<(), LemmyError> { let mut follow = Follow::new(self.actor_id.to_owned(), follow_actor_id.as_str()); follow .set_context(activitystreams::context()) .set_id(generate_activity_id(FollowType::Follow)?); let follow_actor = get_or_fetch_and_upsert_actor(follow_actor_id, context).await?; let to = follow_actor.get_inbox_url()?; // Undo that fake activity let mut undo = Undo::new(Url::parse(&self.actor_id)?, follow.into_any_base()?); undo .set_context(activitystreams::context()) .set_id(generate_activity_id(UndoType::Undo)?); insert_activity(self.id, undo.clone(), true, context.pool()).await?; send_activity(context.activity_queue(), undo, self, vec![to])?; Ok(()) } async fn send_delete(&self, _creator: &User_, _context: &LemmyContext) -> Result<(), LemmyError> { unimplemented!() } async fn send_undo_delete( &self, _creator: &User_, _context: &LemmyContext, ) -> Result<(), LemmyError> { unimplemented!() } async fn send_remove(&self, _creator: &User_, _context: &LemmyContext) -> Result<(), LemmyError> { unimplemented!() } async fn send_undo_remove( &self, _creator: &User_, _context: &LemmyContext, ) -> Result<(), LemmyError> { unimplemented!() } async fn send_accept_follow( &self, _follow: Follow, _context: &LemmyContext, ) -> Result<(), LemmyError> { unimplemented!() } async fn get_follower_inboxes(&self, _pool: &DbPool) -> Result, LemmyError> { unimplemented!() } fn user_id(&self) -> i32 { self.id } } #[async_trait::async_trait(?Send)] impl FromApub for UserForm { type ApubType = PersonExt; /// Parse an ActivityPub person received from another instance into a Lemmy user. async fn from_apub( person: &PersonExt, _context: &LemmyContext, expected_domain: Option, ) -> Result { let avatar = match person.icon() { Some(any_image) => Some( Image::from_any_base(any_image.as_one().context(location_info!())?.clone())? .context(location_info!())? .url() .context(location_info!())? .as_single_xsd_any_uri() .map(|u| u.to_string()), ), None => None, }; let banner = match person.image() { Some(any_image) => Some( Image::from_any_base(any_image.as_one().context(location_info!())?.clone()) .context(location_info!())? .context(location_info!())? .url() .context(location_info!())? .as_single_xsd_any_uri() .map(|u| u.to_string()), ), None => None, }; let name = person .name() .context(location_info!())? .one() .context(location_info!())? .as_xsd_string() .context(location_info!())? .to_string(); let preferred_username = person.inner.preferred_username().map(|u| u.to_string()); let bio = person .inner .summary() .map(|s| s.as_single_xsd_string()) .flatten() .map(|s| s.to_string()); check_slurs(&name)?; check_slurs_opt(&preferred_username)?; check_slurs_opt(&bio)?; Ok(UserForm { name, preferred_username, password_encrypted: "".to_string(), admin: false, banned: false, email: None, avatar, banner, updated: person.updated().map(|u| u.to_owned().naive_local()), show_nsfw: false, theme: "".to_string(), default_sort_type: 0, default_listing_type: 0, lang: "".to_string(), show_avatars: false, send_notifications_to_email: false, matrix_user_id: None, actor_id: Some(check_actor_domain(person, expected_domain)?), bio, local: false, private_key: None, public_key: Some(person.ext_one.public_key.to_owned().public_key_pem), last_refreshed_at: Some(naive_now()), }) } } /// Return the user json over HTTP. pub async fn get_apub_user_http( info: web::Path, context: web::Data, ) -> Result, LemmyError> { let user_name = info.into_inner().user_name; let user = blocking(context.pool(), move |conn| { User_::find_by_email_or_username(conn, &user_name) }) .await??; let u = user.to_apub(context.pool()).await?; Ok(create_apub_response(&u)) }