use crate::{ check_apub_id_valid_with_strictness, local_instance, objects::read_from_string_or_source, protocol::{ objects::chat_message::{ChatMessage, ChatMessageType}, Source, }, }; use activitypub_federation::{ core::object_id::ObjectId, deser::values::MediaTypeHtml, traits::ApubObject, utils::verify_domains_match, }; use chrono::NaiveDateTime; use lemmy_api_common::utils::{blocking, check_person_block}; use lemmy_db_schema::{ source::{ person::Person, private_message::{PrivateMessage, PrivateMessageForm}, }, traits::Crud, }; use lemmy_utils::{ error::LemmyError, utils::{convert_datetime, markdown_to_html}, }; use lemmy_websocket::LemmyContext; use std::ops::Deref; use url::Url; #[derive(Clone, Debug)] pub struct ApubPrivateMessage(PrivateMessage); impl Deref for ApubPrivateMessage { type Target = PrivateMessage; fn deref(&self) -> &Self::Target { &self.0 } } impl From for ApubPrivateMessage { fn from(pm: PrivateMessage) -> Self { ApubPrivateMessage(pm) } } #[async_trait::async_trait(?Send)] impl ApubObject for ApubPrivateMessage { type DataType = LemmyContext; type ApubType = ChatMessage; type DbType = PrivateMessage; type Error = LemmyError; fn last_refreshed_at(&self) -> Option { None } #[tracing::instrument(skip_all)] async fn read_from_apub_id( object_id: Url, context: &LemmyContext, ) -> Result, LemmyError> { Ok( blocking(context.pool(), move |conn| { PrivateMessage::read_from_apub_id(conn, object_id) }) .await?? .map(Into::into), ) } async fn delete(self, _context: &LemmyContext) -> Result<(), LemmyError> { // do nothing, because pm can't be fetched over http unimplemented!() } #[tracing::instrument(skip_all)] async fn into_apub(self, context: &LemmyContext) -> Result { let creator_id = self.creator_id; let creator = blocking(context.pool(), move |conn| Person::read(conn, creator_id)).await??; let recipient_id = self.recipient_id; let recipient = blocking(context.pool(), move |conn| Person::read(conn, recipient_id)).await??; let note = ChatMessage { r#type: ChatMessageType::ChatMessage, id: ObjectId::new(self.ap_id.clone()), attributed_to: ObjectId::new(creator.actor_id), to: [ObjectId::new(recipient.actor_id)], content: markdown_to_html(&self.content), media_type: Some(MediaTypeHtml::Html), source: Some(Source::new(self.content.clone())), published: Some(convert_datetime(self.published)), updated: self.updated.map(convert_datetime), }; Ok(note) } #[tracing::instrument(skip_all)] async fn verify( note: &ChatMessage, expected_domain: &Url, context: &LemmyContext, request_counter: &mut i32, ) -> Result<(), LemmyError> { verify_domains_match(note.id.inner(), expected_domain)?; verify_domains_match(note.attributed_to.inner(), note.id.inner())?; check_apub_id_valid_with_strictness(note.id.inner(), false, context.settings())?; let person = note .attributed_to .dereference(context, local_instance(context), request_counter) .await?; if person.banned { return Err(LemmyError::from_message("Person is banned from site")); } Ok(()) } #[tracing::instrument(skip_all)] async fn from_apub( note: ChatMessage, context: &LemmyContext, request_counter: &mut i32, ) -> Result { let creator = note .attributed_to .dereference(context, local_instance(context), request_counter) .await?; let recipient = note.to[0] .dereference(context, local_instance(context), request_counter) .await?; check_person_block(creator.id, recipient.id, context.pool()).await?; let form = PrivateMessageForm { creator_id: creator.id, recipient_id: recipient.id, content: read_from_string_or_source(¬e.content, &None, ¬e.source), published: note.published.map(|u| u.naive_local()), updated: note.updated.map(|u| u.naive_local()), deleted: None, read: None, ap_id: Some(note.id.into()), local: Some(false), }; let pm = blocking(context.pool(), move |conn| { PrivateMessage::upsert(conn, &form) }) .await??; Ok(pm.into()) } } #[cfg(test)] mod tests { use super::*; use crate::{ objects::{ instance::{tests::parse_lemmy_instance, ApubSite}, person::ApubPerson, tests::init_context, }, protocol::tests::file_to_json_object, }; use assert_json_diff::assert_json_include; use lemmy_db_schema::source::site::Site; use serial_test::serial; async fn prepare_comment_test( url: &Url, context: &LemmyContext, ) -> (ApubPerson, ApubPerson, ApubSite) { let lemmy_person = file_to_json_object("assets/lemmy/objects/person.json").unwrap(); let site = parse_lemmy_instance(context).await; ApubPerson::verify(&lemmy_person, url, context, &mut 0) .await .unwrap(); let person1 = ApubPerson::from_apub(lemmy_person, context, &mut 0) .await .unwrap(); let pleroma_person = file_to_json_object("assets/pleroma/objects/person.json").unwrap(); let pleroma_url = Url::parse("https://queer.hacktivis.me/users/lanodan").unwrap(); ApubPerson::verify(&pleroma_person, &pleroma_url, context, &mut 0) .await .unwrap(); let person2 = ApubPerson::from_apub(pleroma_person, context, &mut 0) .await .unwrap(); (person1, person2, site) } fn cleanup(data: (ApubPerson, ApubPerson, ApubSite), context: &LemmyContext) { Person::delete(&*context.pool().get().unwrap(), data.0.id).unwrap(); Person::delete(&*context.pool().get().unwrap(), data.1.id).unwrap(); Site::delete(&*context.pool().get().unwrap(), data.2.id).unwrap(); } #[actix_rt::test] #[serial] async fn test_parse_lemmy_pm() { let context = init_context(); let url = Url::parse("https://enterprise.lemmy.ml/private_message/1621").unwrap(); let data = prepare_comment_test(&url, &context).await; let json: ChatMessage = file_to_json_object("assets/lemmy/objects/chat_message.json").unwrap(); let mut request_counter = 0; ApubPrivateMessage::verify(&json, &url, &context, &mut request_counter) .await .unwrap(); let pm = ApubPrivateMessage::from_apub(json.clone(), &context, &mut request_counter) .await .unwrap(); assert_eq!(pm.ap_id.clone(), url.into()); assert_eq!(pm.content.len(), 20); assert_eq!(request_counter, 0); let pm_id = pm.id; let to_apub = pm.into_apub(&context).await.unwrap(); assert_json_include!(actual: json, expected: to_apub); PrivateMessage::delete(&*context.pool().get().unwrap(), pm_id).unwrap(); cleanup(data, &context); } #[actix_rt::test] #[serial] async fn test_parse_pleroma_pm() { let context = init_context(); let url = Url::parse("https://enterprise.lemmy.ml/private_message/1621").unwrap(); let data = prepare_comment_test(&url, &context).await; let pleroma_url = Url::parse("https://queer.hacktivis.me/objects/2").unwrap(); let json = file_to_json_object("assets/pleroma/objects/chat_message.json").unwrap(); let mut request_counter = 0; ApubPrivateMessage::verify(&json, &pleroma_url, &context, &mut request_counter) .await .unwrap(); let pm = ApubPrivateMessage::from_apub(json, &context, &mut request_counter) .await .unwrap(); assert_eq!(pm.ap_id, pleroma_url.into()); assert_eq!(pm.content.len(), 3); assert_eq!(request_counter, 0); PrivateMessage::delete(&*context.pool().get().unwrap(), pm.id).unwrap(); cleanup(data, &context); } }