lemmy/server/src/apub/user.rs

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use crate::{
api::claims::Claims,
apub::{
activities::send_activity, create_apub_response, insert_activity, ActorType, FromApub,
PersonExt, ToApub,
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},
blocking,
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routes::DbPoolParam,
DbPool, LemmyError,
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};
use activitystreams_ext::Ext1;
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use activitystreams_new::{
activity::{Follow, Undo},
actor::{ApActor, Endpoints, Person},
context,
object::{Image, Tombstone},
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prelude::*,
};
use actix_web::{body::Body, client::Client, web, HttpResponse};
use lemmy_db::{
naive_now,
user::{UserForm, User_},
};
use lemmy_utils::convert_datetime;
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use serde::Deserialize;
use url::Url;
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#[derive(Deserialize)]
pub struct UserQuery {
user_name: String,
}
#[async_trait::async_trait(?Send)]
impl ToApub for User_ {
type Response = PersonExt;
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// Turn a Lemmy Community into an ActivityPub group that can be sent out over the network.
async fn to_apub(&self, _pool: &DbPool) -> Result<PersonExt, LemmyError> {
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// TODO go through all these to_string and to_owned()
let mut person = Person::new();
person
.set_context(context())
.set_id(Url::parse(&self.actor_id)?)
.set_name(self.name.to_owned())
.set_published(convert_datetime(self.published));
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if let Some(u) = self.updated {
person.set_updated(convert_datetime(u));
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}
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()?);
}
let mut ap_actor = ApActor::new(self.get_inbox_url().parse()?, person);
ap_actor
.set_outbox(self.get_outbox_url().parse()?)
.set_followers(self.get_followers_url().parse()?)
.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().parse()?),
..Default::default()
});
if let Some(i) = &self.preferred_username {
ap_actor.set_preferred_username(i.to_owned());
}
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Ok(Ext1::new(ap_actor, self.get_public_key_ext()))
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}
fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
unimplemented!()
}
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}
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#[async_trait::async_trait(?Send)]
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impl ActorType for User_ {
fn actor_id_str(&self) -> String {
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self.actor_id.to_owned()
}
fn public_key(&self) -> String {
self.public_key.to_owned().unwrap()
}
fn private_key(&self) -> String {
self.private_key.to_owned().unwrap()
}
/// As a given local user, send out a follow request to a remote community.
async fn send_follow(
&self,
follow_actor_id: &str,
client: &Client,
pool: &DbPool,
) -> Result<(), LemmyError> {
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let id = format!("{}/follow/{}", self.actor_id, uuid::Uuid::new_v4());
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let mut follow = Follow::new(self.actor_id.to_owned(), follow_actor_id);
follow.set_context(context()).set_id(id.parse()?);
let to = format!("{}/inbox", follow_actor_id);
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insert_activity(self.id, follow.clone(), true, pool).await?;
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send_activity(client, &follow.into_any_base()?, self, vec![to]).await?;
Ok(())
}
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async fn send_unfollow(
&self,
follow_actor_id: &str,
client: &Client,
pool: &DbPool,
) -> Result<(), LemmyError> {
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let id = format!("{}/follow/{}", self.actor_id, uuid::Uuid::new_v4());
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let mut follow = Follow::new(self.actor_id.to_owned(), follow_actor_id);
follow.set_context(context()).set_id(id.parse()?);
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let to = format!("{}/inbox", follow_actor_id);
// TODO
// Undo that fake activity
let undo_id = format!("{}/undo/follow/{}", self.actor_id, uuid::Uuid::new_v4());
let mut undo = Undo::new(Url::parse(&self.actor_id)?, follow.into_any_base()?);
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undo.set_context(context()).set_id(undo_id.parse()?);
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insert_activity(self.id, undo.clone(), true, pool).await?;
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send_activity(client, &undo.into_any_base()?, self, vec![to]).await?;
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Ok(())
}
async fn send_delete(
&self,
_creator: &User_,
_client: &Client,
_pool: &DbPool,
) -> Result<(), LemmyError> {
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unimplemented!()
}
async fn send_undo_delete(
&self,
_creator: &User_,
_client: &Client,
_pool: &DbPool,
) -> Result<(), LemmyError> {
unimplemented!()
}
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async fn send_remove(
&self,
_creator: &User_,
_client: &Client,
_pool: &DbPool,
) -> Result<(), LemmyError> {
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unimplemented!()
}
async fn send_undo_remove(
&self,
_creator: &User_,
_client: &Client,
_pool: &DbPool,
) -> Result<(), LemmyError> {
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unimplemented!()
}
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async fn send_accept_follow(
&self,
_follow: Follow,
_client: &Client,
_pool: &DbPool,
) -> Result<(), LemmyError> {
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unimplemented!()
}
async fn get_follower_inboxes(&self, _pool: &DbPool) -> Result<Vec<String>, LemmyError> {
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unimplemented!()
}
}
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#[async_trait::async_trait(?Send)]
impl FromApub for UserForm {
type ApubType = PersonExt;
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/// Parse an ActivityPub person received from another instance into a Lemmy user.
async fn from_apub(
person: &PersonExt,
_: &Client,
_: &DbPool,
actor_id: &Url,
) -> Result<Self, LemmyError> {
let avatar = match person.icon() {
Some(any_image) => Image::from_any_base(any_image.as_one().unwrap().clone())
.unwrap()
.unwrap()
.url()
.unwrap()
.as_single_xsd_any_uri()
.map(|u| u.to_string()),
None => None,
};
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Ok(UserForm {
name: person
.name()
.unwrap()
.one()
.unwrap()
.as_xsd_string()
.unwrap()
.to_string(),
preferred_username: person.inner.preferred_username().map(|u| u.to_string()),
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password_encrypted: "".to_string(),
admin: false,
banned: false,
email: None,
avatar,
updated: person.updated().map(|u| u.to_owned().naive_local()),
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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: person.id(actor_id.domain().unwrap())?.unwrap().to_string(),
bio: person
.inner
.summary()
.map(|s| s.as_single_xsd_string().unwrap().into()),
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local: false,
private_key: None,
public_key: Some(person.ext_one.public_key.to_owned().public_key_pem),
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last_refreshed_at: Some(naive_now()),
})
}
}
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/// Return the user json over HTTP.
pub async fn get_apub_user_http(
info: web::Path<UserQuery>,
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db: DbPoolParam,
) -> Result<HttpResponse<Body>, LemmyError> {
let user_name = info.into_inner().user_name;
let user = blocking(&db, move |conn| {
Claims::find_by_email_or_username(conn, &user_name)
})
.await??;
let u = user.to_apub(&db).await?;
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Ok(create_apub_response(&u))
}