use activitypub::activity::{Announce, Undo}; use chrono::NaiveDateTime; use diesel::{self, QueryDsl, RunQueryDsl, ExpressionMethods}; use plume_common::activity_pub::{Id, IntoId, inbox::{FromActivity, Notify, Deletable}, PUBLIC_VISIBILTY}; use Connection; use notifications::*; use posts::Post; use users::User; use schema::reshares; #[derive(Clone, Serialize, Deserialize, Queryable, Identifiable)] pub struct Reshare { pub id: i32, pub user_id: i32, pub post_id: i32, pub ap_url: String, pub creation_date: NaiveDateTime } #[derive(Insertable)] #[table_name = "reshares"] pub struct NewReshare { pub user_id: i32, pub post_id: i32, pub ap_url: String } impl Reshare { insert!(reshares, NewReshare); get!(reshares); find_by!(reshares, find_by_ap_url, ap_url as String); find_by!(reshares, find_by_user_on_post, user_id as i32, post_id as i32); pub fn update_ap_url(&self, conn: &Connection) { if self.ap_url.len() == 0 { diesel::update(self) .set(reshares::ap_url.eq(format!( "{}/reshare/{}", User::get(conn, self.user_id).expect("Reshare::update_ap_url: user error").ap_url, Post::get(conn, self.post_id).expect("Reshare::update_ap_url: post error").ap_url ))) .execute(conn).expect("Reshare::update_ap_url: update error"); } } pub fn get_recents_for_author(conn: &Connection, user: &User, limit: i64) -> Vec { reshares::table.filter(reshares::user_id.eq(user.id)) .order(reshares::creation_date.desc()) .limit(limit) .load::(conn) .expect("Reshare::get_recents_for_author: loading error") } pub fn get_post(&self, conn: &Connection) -> Option { Post::get(conn, self.post_id) } pub fn get_user(&self, conn: &Connection) -> Option { User::get(conn, self.user_id) } pub fn into_activity(&self, conn: &Connection) -> Announce { let mut act = Announce::default(); act.announce_props.set_actor_link(User::get(conn, self.user_id).expect("Reshare::into_activity: user error").into_id()) .expect("Reshare::into_activity: actor error"); act.announce_props.set_object_link(Post::get(conn, self.post_id).expect("Reshare::into_activity: post error").into_id()) .expect("Reshare::into_activity: object error"); act.object_props.set_id_string(self.ap_url.clone()).expect("Reshare::into_activity: id error"); act.object_props.set_to_link(Id::new(PUBLIC_VISIBILTY.to_string())).expect("Reshare::into_activity: to error"); act.object_props.set_cc_link_vec::(vec![]).expect("Reshare::into_activity: cc error"); act } } impl FromActivity for Reshare { fn from_activity(conn: &Connection, announce: Announce, _actor: Id) -> Reshare { let user = User::from_url(conn, announce.announce_props.actor_link::().expect("Reshare::from_activity: actor error").into()); let post = Post::find_by_ap_url(conn, announce.announce_props.object_link::().expect("Reshare::from_activity: object error").into()); let reshare = Reshare::insert(conn, NewReshare { post_id: post.expect("Reshare::from_activity: post error").id, user_id: user.expect("Reshare::from_activity: user error").id, ap_url: announce.object_props.id_string().unwrap_or(String::from("")) }); reshare.notify(conn); reshare } } impl Notify for Reshare { fn notify(&self, conn: &Connection) { let post = self.get_post(conn).expect("Reshare::notify: post error"); for author in post.get_authors(conn) { Notification::insert(conn, NewNotification { kind: notification_kind::RESHARE.to_string(), object_id: self.id, user_id: author.id }); } } } impl Deletable for Reshare { fn delete(&self, conn: &Connection) -> Undo { diesel::delete(self).execute(conn).expect("Reshare::delete: delete error"); // delete associated notification if any if let Some(notif) = Notification::find(conn, notification_kind::RESHARE, self.id) { diesel::delete(¬if).execute(conn).expect("Reshare::delete: notification error"); } let mut act = Undo::default(); act.undo_props.set_actor_link(User::get(conn, self.user_id).expect("Reshare::delete: user error").into_id()).expect("Reshare::delete: actor error"); act.undo_props.set_object_object(self.into_activity(conn)).expect("Reshare::delete: object error"); act.object_props.set_id_string(format!("{}#delete", self.ap_url)).expect("Reshare::delete: id error"); act.object_props.set_to_link(Id::new(PUBLIC_VISIBILTY.to_string())).expect("Reshare::delete: to error"); act.object_props.set_cc_link_vec::(vec![]).expect("Reshare::delete: cc error"); act } fn delete_id(id: String, actor_id: String, conn: &Connection) { if let Some(reshare) = Reshare::find_by_ap_url(conn, id) { if let Some(actor) = User::find_by_ap_url(conn, actor_id) { if actor.id == reshare.user_id { reshare.delete(conn); } } } } }