use crate::{ activities::GetActorType, check_apub_id_valid_with_strictness, local_site_data_cached, objects::{instance::fetch_instance_actor_for_object, read_from_string_or_source_opt}, protocol::{ objects::{ person::{Person, UserTypes}, Endpoints, }, ImageObject, Source, }, }; use activitypub_federation::{ config::Data, protocol::verification::verify_domains_match, traits::{Actor, Object}, }; use chrono::{DateTime, Utc}; use lemmy_api_common::{ context::LemmyContext, utils::{generate_outbox_url, local_site_opt_to_slur_regex}, }; use lemmy_db_schema::{ source::{ activity::ActorType, person::{Person as DbPerson, PersonInsertForm, PersonUpdateForm}, }, traits::{ApubActor, Crud}, utils::naive_now, }; use lemmy_utils::{ error::LemmyError, utils::{ markdown::markdown_to_html, slurs::{check_slurs, check_slurs_opt}, }, }; use std::ops::Deref; use url::Url; #[derive(Clone, Debug, PartialEq, Eq)] pub struct ApubPerson(pub(crate) DbPerson); impl Deref for ApubPerson { type Target = DbPerson; fn deref(&self) -> &Self::Target { &self.0 } } impl From for ApubPerson { fn from(p: DbPerson) -> Self { ApubPerson(p) } } #[async_trait::async_trait] impl Object for ApubPerson { type DataType = LemmyContext; type Kind = Person; type Error = LemmyError; fn last_refreshed_at(&self) -> Option> { Some(self.last_refreshed_at) } #[tracing::instrument(skip_all)] async fn read_from_id( object_id: Url, context: &Data, ) -> Result, LemmyError> { Ok( DbPerson::read_from_apub_id(&mut context.pool(), &object_id.into()) .await? .map(Into::into), ) } #[tracing::instrument(skip_all)] async fn delete(self, context: &Data) -> Result<(), LemmyError> { let form = PersonUpdateForm { deleted: Some(true), ..Default::default() }; DbPerson::update(&mut context.pool(), self.id, &form).await?; Ok(()) } #[tracing::instrument(skip_all)] async fn into_json(self, _context: &Data) -> Result { let kind = if self.bot_account { UserTypes::Service } else { UserTypes::Person }; let person = Person { kind, id: self.actor_id.clone().into(), preferred_username: self.name.clone(), name: self.display_name.clone(), summary: self.bio.as_ref().map(|b| markdown_to_html(b)), source: self.bio.clone().map(Source::new), icon: self.avatar.clone().map(ImageObject::new), image: self.banner.clone().map(ImageObject::new), matrix_user_id: self.matrix_user_id.clone(), published: Some(self.published), outbox: generate_outbox_url(&self.actor_id)?.into(), endpoints: self.shared_inbox_url.clone().map(|s| Endpoints { shared_inbox: s.into(), }), public_key: self.public_key(), updated: self.updated, inbox: self.inbox_url.clone().into(), }; Ok(person) } #[tracing::instrument(skip_all)] async fn verify( person: &Person, expected_domain: &Url, context: &Data, ) -> Result<(), LemmyError> { let local_site_data = local_site_data_cached(&mut context.pool()).await?; let slur_regex = &local_site_opt_to_slur_regex(&local_site_data.local_site); check_slurs(&person.preferred_username, slur_regex)?; check_slurs_opt(&person.name, slur_regex)?; verify_domains_match(person.id.inner(), expected_domain)?; check_apub_id_valid_with_strictness(person.id.inner(), false, context).await?; let bio = read_from_string_or_source_opt(&person.summary, &None, &person.source); check_slurs_opt(&bio, slur_regex)?; Ok(()) } #[tracing::instrument(skip_all)] async fn from_json( person: Person, context: &Data, ) -> Result { let instance_id = fetch_instance_actor_for_object(&person.id, context).await?; let bio = read_from_string_or_source_opt(&person.summary, &None, &person.source); // Some Mastodon users have `name: ""` (empty string), need to convert that to `None` // https://github.com/mastodon/mastodon/issues/25233 let display_name = person.name.filter(|n| !n.is_empty()); let person_form = PersonInsertForm { name: person.preferred_username, display_name, banned: None, ban_expires: None, deleted: Some(false), avatar: person.icon.map(|i| i.url.into()), banner: person.image.map(|i| i.url.into()), published: person.published.map(Into::into), updated: person.updated.map(Into::into), actor_id: Some(person.id.into()), bio, local: Some(false), bot_account: Some(person.kind == UserTypes::Service), private_key: None, public_key: person.public_key.public_key_pem, last_refreshed_at: Some(naive_now()), inbox_url: Some(person.inbox.into()), shared_inbox_url: person.endpoints.map(|e| e.shared_inbox.into()), matrix_user_id: person.matrix_user_id, instance_id, }; let person = DbPerson::upsert(&mut context.pool(), &person_form).await?; Ok(person.into()) } } impl Actor for ApubPerson { fn id(&self) -> Url { self.actor_id.inner().clone() } fn public_key_pem(&self) -> &str { &self.public_key } fn private_key_pem(&self) -> Option { self.private_key.clone() } fn inbox(&self) -> Url { self.inbox_url.clone().into() } fn shared_inbox(&self) -> Option { self.shared_inbox_url.clone().map(Into::into) } } impl GetActorType for ApubPerson { fn actor_type(&self) -> ActorType { ActorType::Person } } #[cfg(test)] pub(crate) mod tests { #![allow(clippy::unwrap_used)] #![allow(clippy::indexing_slicing)] use super::*; use crate::{ objects::{ instance::{tests::parse_lemmy_instance, ApubSite}, tests::init_context, }, protocol::{objects::instance::Instance, tests::file_to_json_object}, }; use activitypub_federation::fetch::object_id::ObjectId; use lemmy_db_schema::{source::site::Site, traits::Crud}; use serial_test::serial; pub(crate) async fn parse_lemmy_person(context: &Data) -> (ApubPerson, ApubSite) { let site = parse_lemmy_instance(context).await; let json = file_to_json_object("assets/lemmy/objects/person.json").unwrap(); let url = Url::parse("https://enterprise.lemmy.ml/u/picard").unwrap(); ApubPerson::verify(&json, &url, context).await.unwrap(); let person = ApubPerson::from_json(json, context).await.unwrap(); assert_eq!(context.request_count(), 0); (person, site) } #[tokio::test] #[serial] async fn test_parse_lemmy_person() { let context = init_context().await; let (person, site) = parse_lemmy_person(&context).await; assert_eq!(person.display_name, Some("Jean-Luc Picard".to_string())); assert!(!person.local); assert_eq!(person.bio.as_ref().unwrap().len(), 39); cleanup((person, site), &context).await; } #[tokio::test] #[serial] async fn test_parse_pleroma_person() { let context = init_context().await; // create and parse a fake pleroma instance actor, to avoid network request during test let mut json: Instance = file_to_json_object("assets/lemmy/objects/instance.json").unwrap(); json.id = ObjectId::parse("https://queer.hacktivis.me/").unwrap(); let url = Url::parse("https://queer.hacktivis.me/users/lanodan").unwrap(); ApubSite::verify(&json, &url, &context).await.unwrap(); let site = ApubSite::from_json(json, &context).await.unwrap(); let json = file_to_json_object("assets/pleroma/objects/person.json").unwrap(); ApubPerson::verify(&json, &url, &context).await.unwrap(); let person = ApubPerson::from_json(json, &context).await.unwrap(); assert_eq!(person.actor_id, url.into()); assert_eq!(person.name, "lanodan"); assert!(!person.local); assert_eq!(context.request_count(), 0); assert_eq!(person.bio.as_ref().unwrap().len(), 873); cleanup((person, site), &context).await; } async fn cleanup(data: (ApubPerson, ApubSite), context: &LemmyContext) { DbPerson::delete(&mut context.pool(), data.0.id) .await .unwrap(); Site::delete(&mut context.pool(), data.1.id).await.unwrap(); } }