mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-06-02 06:51:51 +00:00
634 lines
17 KiB
Rust
634 lines
17 KiB
Rust
use crate::{
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apub::{
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activities::{populate_object_props, send_activity_to_community},
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create_apub_response,
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create_apub_tombstone_response,
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create_tombstone,
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fetch_webfinger_url,
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fetcher::{
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get_or_fetch_and_insert_remote_comment,
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get_or_fetch_and_insert_remote_post,
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get_or_fetch_and_upsert_remote_user,
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},
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ActorType,
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ApubLikeableType,
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ApubObjectType,
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FromApub,
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ToApub,
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},
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blocking,
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convert_datetime,
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db::{
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comment::{Comment, CommentForm},
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community::Community,
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post::Post,
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user::User_,
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Crud,
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},
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routes::DbPoolParam,
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scrape_text_for_mentions,
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DbPool,
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LemmyError,
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MentionData,
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};
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use activitystreams::{
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activity::{Create, Delete, Dislike, Like, Remove, Undo, Update},
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context,
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link::Mention,
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object::{kind::NoteType, properties::ObjectProperties, Note},
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};
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use activitystreams_new::object::Tombstone;
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use actix_web::{body::Body, client::Client, web::Path, HttpResponse};
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use itertools::Itertools;
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use log::debug;
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use serde::Deserialize;
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#[derive(Deserialize)]
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pub struct CommentQuery {
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comment_id: String,
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}
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/// Return the post json over HTTP.
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pub async fn get_apub_comment(
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info: Path<CommentQuery>,
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db: DbPoolParam,
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) -> Result<HttpResponse<Body>, LemmyError> {
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let id = info.comment_id.parse::<i32>()?;
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let comment = blocking(&db, move |conn| Comment::read(conn, id)).await??;
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if !comment.deleted {
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Ok(create_apub_response(&comment.to_apub(&db).await?))
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} else {
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Ok(create_apub_tombstone_response(&comment.to_tombstone()?))
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}
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}
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#[async_trait::async_trait(?Send)]
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impl ToApub for Comment {
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type Response = Note;
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async fn to_apub(&self, pool: &DbPool) -> Result<Note, LemmyError> {
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let mut comment = Note::default();
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let oprops: &mut ObjectProperties = comment.as_mut();
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let creator_id = self.creator_id;
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let creator = blocking(pool, move |conn| User_::read(conn, creator_id)).await??;
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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// Add a vector containing some important info to the "in_reply_to" field
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// [post_ap_id, Option(parent_comment_ap_id)]
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let mut in_reply_to_vec = vec![post.ap_id];
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if let Some(parent_id) = self.parent_id {
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let parent_comment = blocking(pool, move |conn| Comment::read(conn, parent_id)).await??;
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in_reply_to_vec.push(parent_comment.ap_id);
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}
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oprops
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// Not needed when the Post is embedded in a collection (like for community outbox)
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.set_context_xsd_any_uri(context())?
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.set_id(self.ap_id.to_owned())?
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.set_published(convert_datetime(self.published))?
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.set_to_xsd_any_uri(community.actor_id)?
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.set_many_in_reply_to_xsd_any_uris(in_reply_to_vec)?
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.set_content_xsd_string(self.content.to_owned())?
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.set_attributed_to_xsd_any_uri(creator.actor_id)?;
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if let Some(u) = self.updated {
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oprops.set_updated(convert_datetime(u))?;
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}
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Ok(comment)
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}
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fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
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create_tombstone(
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self.deleted,
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&self.ap_id,
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self.updated,
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NoteType.to_string(),
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)
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}
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}
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#[async_trait::async_trait(?Send)]
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impl FromApub for CommentForm {
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type ApubType = Note;
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/// Parse an ActivityPub note received from another instance into a Lemmy comment
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async fn from_apub(
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note: &mut Note,
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client: &Client,
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pool: &DbPool,
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) -> Result<CommentForm, LemmyError> {
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let oprops = ¬e.object_props;
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let creator_actor_id = &oprops.get_attributed_to_xsd_any_uri().unwrap().to_string();
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let creator = get_or_fetch_and_upsert_remote_user(&creator_actor_id, client, pool).await?;
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let mut in_reply_tos = oprops.get_many_in_reply_to_xsd_any_uris().unwrap();
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let post_ap_id = in_reply_tos.next().unwrap().to_string();
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// This post, or the parent comment might not yet exist on this server yet, fetch them.
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let post = get_or_fetch_and_insert_remote_post(&post_ap_id, client, pool).await?;
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// The 2nd item, if it exists, is the parent comment apub_id
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// For deeply nested comments, FromApub automatically gets called recursively
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let parent_id: Option<i32> = match in_reply_tos.next() {
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Some(parent_comment_uri) => {
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let parent_comment_ap_id = &parent_comment_uri.to_string();
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let parent_comment =
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get_or_fetch_and_insert_remote_comment(&parent_comment_ap_id, client, pool).await?;
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Some(parent_comment.id)
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}
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None => None,
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};
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Ok(CommentForm {
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creator_id: creator.id,
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post_id: post.id,
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parent_id,
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content: oprops
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.get_content_xsd_string()
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.map(|c| c.to_string())
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.unwrap(),
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removed: None,
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read: None,
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published: oprops
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.get_published()
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.map(|u| u.as_ref().to_owned().naive_local()),
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updated: oprops
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.get_updated()
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.map(|u| u.as_ref().to_owned().naive_local()),
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deleted: None,
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ap_id: oprops.get_id().unwrap().to_string(),
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local: false,
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})
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}
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}
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#[async_trait::async_trait(?Send)]
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impl ApubObjectType for Comment {
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/// Send out information about a newly created comment, to the followers of the community.
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async fn send_create(
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&self,
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creator: &User_,
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client: &Client,
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pool: &DbPool,
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) -> Result<(), LemmyError> {
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let note = self.to_apub(pool).await?;
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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let maa =
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collect_non_local_mentions_and_addresses(&self.content, &community, client, pool).await?;
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let id = format!("{}/create/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut create = Create::new();
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populate_object_props(&mut create.object_props, maa.addressed_ccs, &id)?;
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// Set the mention tags
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create.object_props.set_many_tag_base_boxes(maa.tags)?;
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create
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.create_props
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.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
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.set_object_base_box(note)?;
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send_activity_to_community(&creator, &community, maa.inboxes, create, client, pool).await?;
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Ok(())
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}
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/// Send out information about an edited post, to the followers of the community.
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async fn send_update(
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&self,
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creator: &User_,
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client: &Client,
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pool: &DbPool,
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) -> Result<(), LemmyError> {
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let note = self.to_apub(pool).await?;
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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let maa =
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collect_non_local_mentions_and_addresses(&self.content, &community, client, pool).await?;
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let id = format!("{}/update/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut update = Update::new();
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populate_object_props(&mut update.object_props, maa.addressed_ccs, &id)?;
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// Set the mention tags
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update.object_props.set_many_tag_base_boxes(maa.tags)?;
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update
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.update_props
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.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
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.set_object_base_box(note)?;
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send_activity_to_community(&creator, &community, maa.inboxes, update, client, pool).await?;
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Ok(())
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}
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async fn send_delete(
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&self,
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creator: &User_,
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client: &Client,
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pool: &DbPool,
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) -> Result<(), LemmyError> {
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let note = self.to_apub(pool).await?;
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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let id = format!("{}/delete/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut delete = Delete::default();
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populate_object_props(
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&mut delete.object_props,
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vec![community.get_followers_url()],
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&id,
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)?;
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delete
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.delete_props
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.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
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.set_object_base_box(note)?;
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send_activity_to_community(
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&creator,
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&community,
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vec![community.get_shared_inbox_url()],
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delete,
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client,
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pool,
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)
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.await?;
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Ok(())
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}
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async fn send_undo_delete(
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&self,
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creator: &User_,
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client: &Client,
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pool: &DbPool,
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) -> Result<(), LemmyError> {
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let note = self.to_apub(pool).await?;
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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// Generate a fake delete activity, with the correct object
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let id = format!("{}/delete/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut delete = Delete::default();
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populate_object_props(
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&mut delete.object_props,
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vec![community.get_followers_url()],
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&id,
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)?;
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delete
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.delete_props
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.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
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.set_object_base_box(note)?;
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// TODO
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// Undo that fake activity
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let undo_id = format!("{}/undo/delete/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut undo = Undo::default();
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populate_object_props(
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&mut undo.object_props,
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vec![community.get_followers_url()],
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&undo_id,
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)?;
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undo
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.undo_props
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.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
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.set_object_base_box(delete)?;
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send_activity_to_community(
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&creator,
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&community,
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vec![community.get_shared_inbox_url()],
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undo,
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client,
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pool,
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)
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.await?;
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Ok(())
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}
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async fn send_remove(
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&self,
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mod_: &User_,
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client: &Client,
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pool: &DbPool,
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) -> Result<(), LemmyError> {
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let note = self.to_apub(pool).await?;
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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let id = format!("{}/remove/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut remove = Remove::default();
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populate_object_props(
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&mut remove.object_props,
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vec![community.get_followers_url()],
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&id,
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)?;
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remove
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.remove_props
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.set_actor_xsd_any_uri(mod_.actor_id.to_owned())?
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.set_object_base_box(note)?;
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send_activity_to_community(
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&mod_,
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&community,
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vec![community.get_shared_inbox_url()],
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remove,
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client,
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pool,
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)
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.await?;
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Ok(())
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}
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async fn send_undo_remove(
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&self,
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mod_: &User_,
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client: &Client,
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pool: &DbPool,
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) -> Result<(), LemmyError> {
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let note = self.to_apub(pool).await?;
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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// Generate a fake delete activity, with the correct object
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let id = format!("{}/remove/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut remove = Remove::default();
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populate_object_props(
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&mut remove.object_props,
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vec![community.get_followers_url()],
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&id,
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)?;
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remove
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.remove_props
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.set_actor_xsd_any_uri(mod_.actor_id.to_owned())?
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.set_object_base_box(note)?;
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// Undo that fake activity
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let undo_id = format!("{}/undo/remove/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut undo = Undo::default();
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populate_object_props(
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&mut undo.object_props,
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vec![community.get_followers_url()],
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&undo_id,
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)?;
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undo
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.undo_props
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.set_actor_xsd_any_uri(mod_.actor_id.to_owned())?
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.set_object_base_box(remove)?;
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send_activity_to_community(
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&mod_,
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&community,
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vec![community.get_shared_inbox_url()],
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undo,
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client,
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pool,
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)
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.await?;
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Ok(())
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}
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}
|
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|
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#[async_trait::async_trait(?Send)]
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impl ApubLikeableType for Comment {
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async fn send_like(
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&self,
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creator: &User_,
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client: &Client,
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pool: &DbPool,
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) -> Result<(), LemmyError> {
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let note = self.to_apub(pool).await?;
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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let id = format!("{}/like/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut like = Like::new();
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populate_object_props(
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&mut like.object_props,
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vec![community.get_followers_url()],
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&id,
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)?;
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like
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.like_props
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.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
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.set_object_base_box(note)?;
|
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send_activity_to_community(
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&creator,
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&community,
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vec![community.get_shared_inbox_url()],
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like,
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client,
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pool,
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)
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.await?;
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Ok(())
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}
|
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|
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async fn send_dislike(
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&self,
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creator: &User_,
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client: &Client,
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pool: &DbPool,
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) -> Result<(), LemmyError> {
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let note = self.to_apub(pool).await?;
|
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let post_id = self.post_id;
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let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
|
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let community_id = post.community_id;
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let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
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let id = format!("{}/dislike/{}", self.ap_id, uuid::Uuid::new_v4());
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let mut dislike = Dislike::new();
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populate_object_props(
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&mut dislike.object_props,
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vec![community.get_followers_url()],
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&id,
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)?;
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dislike
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.dislike_props
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.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
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.set_object_base_box(note)?;
|
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send_activity_to_community(
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&creator,
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&community,
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vec![community.get_shared_inbox_url()],
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dislike,
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client,
|
|
pool,
|
|
)
|
|
.await?;
|
|
Ok(())
|
|
}
|
|
|
|
async fn send_undo_like(
|
|
&self,
|
|
creator: &User_,
|
|
client: &Client,
|
|
pool: &DbPool,
|
|
) -> Result<(), LemmyError> {
|
|
let note = self.to_apub(pool).await?;
|
|
|
|
let post_id = self.post_id;
|
|
let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
|
|
|
|
let community_id = post.community_id;
|
|
let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
|
|
|
|
let id = format!("{}/dislike/{}", self.ap_id, uuid::Uuid::new_v4());
|
|
|
|
let mut like = Like::new();
|
|
populate_object_props(
|
|
&mut like.object_props,
|
|
vec![community.get_followers_url()],
|
|
&id,
|
|
)?;
|
|
like
|
|
.like_props
|
|
.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
|
|
.set_object_base_box(note)?;
|
|
|
|
// TODO
|
|
// Undo that fake activity
|
|
let undo_id = format!("{}/undo/like/{}", self.ap_id, uuid::Uuid::new_v4());
|
|
let mut undo = Undo::default();
|
|
|
|
populate_object_props(
|
|
&mut undo.object_props,
|
|
vec![community.get_followers_url()],
|
|
&undo_id,
|
|
)?;
|
|
|
|
undo
|
|
.undo_props
|
|
.set_actor_xsd_any_uri(creator.actor_id.to_owned())?
|
|
.set_object_base_box(like)?;
|
|
|
|
send_activity_to_community(
|
|
&creator,
|
|
&community,
|
|
vec![community.get_shared_inbox_url()],
|
|
undo,
|
|
client,
|
|
pool,
|
|
)
|
|
.await?;
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
struct MentionsAndAddresses {
|
|
addressed_ccs: Vec<String>,
|
|
inboxes: Vec<String>,
|
|
tags: Vec<Mention>,
|
|
}
|
|
|
|
/// This takes a comment, and builds a list of to_addresses, inboxes,
|
|
/// and mention tags, so they know where to be sent to.
|
|
/// Addresses are the users / addresses that go in the cc field.
|
|
async fn collect_non_local_mentions_and_addresses(
|
|
content: &str,
|
|
community: &Community,
|
|
client: &Client,
|
|
pool: &DbPool,
|
|
) -> Result<MentionsAndAddresses, LemmyError> {
|
|
let mut addressed_ccs = vec![community.get_followers_url()];
|
|
|
|
// Add the mention tag
|
|
let mut tags = Vec::new();
|
|
|
|
// Get the inboxes for any mentions
|
|
let mentions = scrape_text_for_mentions(&content)
|
|
.into_iter()
|
|
// Filter only the non-local ones
|
|
.filter(|m| !m.is_local())
|
|
.collect::<Vec<MentionData>>();
|
|
|
|
let mut mention_inboxes = Vec::new();
|
|
for mention in &mentions {
|
|
// TODO should it be fetching it every time?
|
|
if let Ok(actor_id) = fetch_webfinger_url(mention, client).await {
|
|
debug!("mention actor_id: {}", actor_id);
|
|
addressed_ccs.push(actor_id.to_owned());
|
|
|
|
let mention_user = get_or_fetch_and_upsert_remote_user(&actor_id, client, pool).await?;
|
|
let shared_inbox = mention_user.get_shared_inbox_url();
|
|
|
|
mention_inboxes.push(shared_inbox);
|
|
let mut mention_tag = Mention::new();
|
|
mention_tag
|
|
.link_props
|
|
.set_href(actor_id)?
|
|
.set_name_xsd_string(mention.full_name())?;
|
|
tags.push(mention_tag);
|
|
}
|
|
}
|
|
|
|
let mut inboxes = vec![community.get_shared_inbox_url()];
|
|
inboxes.extend(mention_inboxes);
|
|
inboxes = inboxes.into_iter().unique().collect();
|
|
|
|
Ok(MentionsAndAddresses {
|
|
addressed_ccs,
|
|
inboxes,
|
|
tags,
|
|
})
|
|
}
|