lemmy/server/src/apub/user.rs

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use crate::{
apub::{
activities::send_activity,
create_apub_response,
extensions::signatures::PublicKey,
ActorType,
FromApub,
PersonExt,
ToApub,
},
convert_datetime,
db::{
activity::insert_activity,
user::{UserForm, User_},
},
naive_now,
routes::DbPoolParam,
};
use activitystreams::{
activity::{Follow, Undo},
actor::{properties::ApActorProperties, Person},
context,
endpoint::EndpointProperties,
object::{properties::ObjectProperties, AnyImage, Image, Tombstone},
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};
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use activitystreams_ext::Ext2;
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use actix_web::{body::Body, web::Path, HttpResponse, Result};
use diesel::PgConnection;
use failure::Error;
use serde::Deserialize;
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#[derive(Deserialize)]
pub struct UserQuery {
user_name: String,
}
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.
fn to_apub(&self, _conn: &PgConnection) -> Result<PersonExt, Error> {
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// TODO go through all these to_string and to_owned()
let mut person = Person::default();
let oprops: &mut ObjectProperties = person.as_mut();
oprops
.set_context_xsd_any_uri(context())?
.set_id(self.actor_id.to_string())?
.set_name_xsd_string(self.name.to_owned())?
.set_published(convert_datetime(self.published))?;
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if let Some(u) = self.updated {
oprops.set_updated(convert_datetime(u))?;
}
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if let Some(i) = &self.preferred_username {
oprops.set_name_xsd_string(i.to_owned())?;
}
if let Some(avatar_url) = &self.avatar {
let mut image = Image::new();
image
.object_props
.set_url_xsd_any_uri(avatar_url.to_owned())?;
let any_image = AnyImage::from_concrete(image)?;
oprops.set_icon_any_image(any_image)?;
}
let mut endpoint_props = EndpointProperties::default();
endpoint_props.set_shared_inbox(self.get_shared_inbox_url())?;
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let mut actor_props = ApActorProperties::default();
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actor_props
.set_inbox(self.get_inbox_url())?
.set_outbox(self.get_outbox_url())?
.set_endpoints(endpoint_props)?
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.set_followers(self.get_followers_url())?
.set_following(self.get_following_url())?
.set_liked(self.get_liked_url())?;
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Ok(Ext2::new(person, actor_props, self.get_public_key_ext()))
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}
fn to_tombstone(&self) -> Result<Tombstone, Error> {
unimplemented!()
}
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}
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impl ActorType for User_ {
fn actor_id(&self) -> String {
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.
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fn send_follow(&self, follow_actor_id: &str, conn: &PgConnection) -> Result<(), Error> {
let mut follow = Follow::new();
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let id = format!("{}/follow/{}", self.actor_id, uuid::Uuid::new_v4());
follow
.object_props
.set_context_xsd_any_uri(context())?
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.set_id(id)?;
follow
.follow_props
.set_actor_xsd_any_uri(self.actor_id.to_owned())?
.set_object_xsd_any_uri(follow_actor_id)?;
let to = format!("{}/inbox", follow_actor_id);
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insert_activity(&conn, self.id, &follow, true)?;
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send_activity(&follow, self, vec![to])?;
Ok(())
}
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fn send_unfollow(&self, follow_actor_id: &str, conn: &PgConnection) -> Result<(), Error> {
let mut follow = Follow::new();
let id = format!("{}/follow/{}", self.actor_id, uuid::Uuid::new_v4());
follow
.object_props
.set_context_xsd_any_uri(context())?
.set_id(id)?;
follow
.follow_props
.set_actor_xsd_any_uri(self.actor_id.to_owned())?
.set_object_xsd_any_uri(follow_actor_id)?;
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::default();
undo
.object_props
.set_context_xsd_any_uri(context())?
.set_id(undo_id)?;
undo
.undo_props
.set_actor_xsd_any_uri(self.actor_id.to_owned())?
.set_object_base_box(follow)?;
insert_activity(&conn, self.id, &undo, true)?;
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send_activity(&undo, self, vec![to])?;
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Ok(())
}
fn send_delete(&self, _creator: &User_, _conn: &PgConnection) -> Result<(), Error> {
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unimplemented!()
}
fn send_undo_delete(&self, _creator: &User_, _conn: &PgConnection) -> Result<(), Error> {
unimplemented!()
}
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fn send_remove(&self, _creator: &User_, _conn: &PgConnection) -> Result<(), Error> {
unimplemented!()
}
fn send_undo_remove(&self, _creator: &User_, _conn: &PgConnection) -> Result<(), Error> {
unimplemented!()
}
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fn send_accept_follow(&self, _follow: &Follow, _conn: &PgConnection) -> Result<(), Error> {
unimplemented!()
}
fn get_follower_inboxes(&self, _conn: &PgConnection) -> Result<Vec<String>, Error> {
unimplemented!()
}
}
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impl FromApub for UserForm {
type ApubType = PersonExt;
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/// Parse an ActivityPub person received from another instance into a Lemmy user.
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fn from_apub(person: &PersonExt, _conn: &PgConnection) -> Result<Self, Error> {
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let oprops = &person.inner.object_props;
let aprops = &person.ext_one;
let public_key: &PublicKey = &person.ext_two.public_key;
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let avatar = match oprops.get_icon_any_image() {
Some(any_image) => any_image
.to_owned()
.into_concrete::<Image>()?
.object_props
.get_url_xsd_any_uri()
.map(|u| u.to_string()),
None => None,
};
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Ok(UserForm {
name: oprops.get_name_xsd_string().unwrap().to_string(),
preferred_username: aprops.get_preferred_username().map(|u| u.to_string()),
password_encrypted: "".to_string(),
admin: false,
banned: false,
email: None,
avatar,
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updated: oprops
.get_updated()
.map(|u| u.as_ref().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: oprops.get_id().unwrap().to_string(),
bio: oprops.get_summary_xsd_string().map(|s| s.to_string()),
local: false,
private_key: None,
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public_key: Some(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: Path<UserQuery>,
db: DbPoolParam,
) -> Result<HttpResponse<Body>, Error> {
let user = User_::find_by_email_or_username(&&db.get()?, &info.user_name)?;
let u = user.to_apub(&db.get().unwrap())?;
Ok(create_apub_response(&u))
}