lemmy/crates/api_crud/src/comment/create.rs
Nutomic a2a594b763
Extract Activitypub logic into separate library (#2288)
* Create example for apub lib

* some rewriting of apub lib

* Add LocalInstance struct for apub lib to avoid using Lemmy Settings

* Move ActorType trait to lemmy_apub, because its not needed in library

* Use reqwest_retry instead of custom impl, dont specify timeout on every send()

* Some improvements to example

* Moved inbox handling to library

* bug fixes

* Move context and serde helpers into library

* wip: example changes

* Add lemmy_utils feature to build only LemmyError

* Rename to activitypub_federation

* Remove lemmy_utils dep from activitypub_federation using generic error type

* Finish activitypub example

* Cleanup and fix tests

* Reorganize library files

* Remove ApubObject.to_tombstone()

* Extract activitypub library into separate git repository
2022-06-02 16:33:41 +02:00

206 lines
6.5 KiB
Rust

use crate::PerformCrud;
use actix_web::web::Data;
use lemmy_api_common::{
comment::{CommentResponse, CreateComment},
utils::{
blocking,
check_community_ban,
check_community_deleted_or_removed,
check_post_deleted_or_removed,
get_local_user_view_from_jwt,
get_post,
},
};
use lemmy_apub::{
generate_local_apub_endpoint,
objects::comment::ApubComment,
protocol::activities::{create_or_update::comment::CreateOrUpdateComment, CreateOrUpdateType},
EndpointType,
};
use lemmy_db_schema::{
source::{
comment::{Comment, CommentForm, CommentLike, CommentLikeForm},
person_mention::PersonMention,
},
traits::{Crud, Likeable},
};
use lemmy_db_views::structs::CommentView;
use lemmy_utils::{
error::LemmyError,
utils::{remove_slurs, scrape_text_for_mentions},
ConnectionId,
};
use lemmy_websocket::{
send::{send_comment_ws_message, send_local_notifs},
LemmyContext,
UserOperationCrud,
};
#[async_trait::async_trait(?Send)]
impl PerformCrud for CreateComment {
type Response = CommentResponse;
#[tracing::instrument(skip(context, websocket_id))]
async fn perform(
&self,
context: &Data<LemmyContext>,
websocket_id: Option<ConnectionId>,
) -> Result<CommentResponse, LemmyError> {
let data: &CreateComment = self;
let local_user_view =
get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
let content_slurs_removed =
remove_slurs(&data.content.to_owned(), &context.settings().slur_regex());
// Check for a community ban
let post_id = data.post_id;
let post = get_post(post_id, context.pool()).await?;
let community_id = post.community_id;
check_community_ban(local_user_view.person.id, community_id, context.pool()).await?;
check_community_deleted_or_removed(community_id, context.pool()).await?;
check_post_deleted_or_removed(&post)?;
// Check if post is locked, no new comments
if post.locked {
return Err(LemmyError::from_message("locked"));
}
// If there's a parent_id, check to make sure that comment is in that post
if let Some(parent_id) = data.parent_id {
// Make sure the parent comment exists
let parent = blocking(context.pool(), move |conn| Comment::read(conn, parent_id))
.await?
.map_err(|e| LemmyError::from_error_message(e, "couldnt_create_comment"))?;
// Strange issue where sometimes the post ID is incorrect
if parent.post_id != post_id {
return Err(LemmyError::from_message("couldnt_create_comment"));
}
}
let comment_form = CommentForm {
content: content_slurs_removed,
parent_id: data.parent_id.to_owned(),
post_id: data.post_id,
creator_id: local_user_view.person.id,
..CommentForm::default()
};
// Create the comment
let comment_form2 = comment_form.clone();
let inserted_comment = blocking(context.pool(), move |conn| {
Comment::create(conn, &comment_form2)
})
.await?
.map_err(|e| LemmyError::from_error_message(e, "couldnt_create_comment"))?;
// Necessary to update the ap_id
let inserted_comment_id = inserted_comment.id;
let protocol_and_hostname = context.settings().get_protocol_and_hostname();
let updated_comment: Comment =
blocking(context.pool(), move |conn| -> Result<Comment, LemmyError> {
let apub_id = generate_local_apub_endpoint(
EndpointType::Comment,
&inserted_comment_id.to_string(),
&protocol_and_hostname,
)?;
Ok(Comment::update_ap_id(conn, inserted_comment_id, apub_id)?)
})
.await?
.map_err(|e| e.with_message("couldnt_create_comment"))?;
// Scan the comment for user mentions, add those rows
let post_id = post.id;
let mentions = scrape_text_for_mentions(&comment_form.content);
let recipient_ids = send_local_notifs(
mentions,
&updated_comment,
&local_user_view.person,
&post,
true,
context,
)
.await?;
// You like your own comment by default
let like_form = CommentLikeForm {
comment_id: inserted_comment.id,
post_id,
person_id: local_user_view.person.id,
score: 1,
};
let like = move |conn: &'_ _| CommentLike::like(conn, &like_form);
blocking(context.pool(), like)
.await?
.map_err(|e| LemmyError::from_error_message(e, "couldnt_like_comment"))?;
let apub_comment: ApubComment = updated_comment.into();
CreateOrUpdateComment::send(
apub_comment.clone(),
&local_user_view.person.clone().into(),
CreateOrUpdateType::Create,
context,
&mut 0,
)
.await?;
let person_id = local_user_view.person.id;
let comment_id = inserted_comment.id;
let comment_view = blocking(context.pool(), move |conn| {
CommentView::read(conn, comment_id, Some(person_id))
})
.await??;
// If its a comment to yourself, mark it as read
if local_user_view.person.id == comment_view.get_recipient_id() {
let comment_id = inserted_comment.id;
blocking(context.pool(), move |conn| {
Comment::update_read(conn, comment_id, true)
})
.await?
.map_err(|e| LemmyError::from_error_message(e, "couldnt_update_comment"))?;
}
// If its a reply, mark the parent as read
if let Some(parent_id) = data.parent_id {
let parent_comment = blocking(context.pool(), move |conn| {
CommentView::read(conn, parent_id, Some(person_id))
})
.await??;
if local_user_view.person.id == parent_comment.get_recipient_id() {
blocking(context.pool(), move |conn| {
Comment::update_read(conn, parent_id, true)
})
.await?
.map_err(|e| LemmyError::from_error_message(e, "couldnt_update_parent_comment"))?;
}
// If the parent has PersonMentions mark them as read too
let person_id = local_user_view.person.id;
let person_mention = blocking(context.pool(), move |conn| {
PersonMention::read_by_comment_and_person(conn, parent_id, person_id)
})
.await?;
if let Ok(mention) = person_mention {
blocking(context.pool(), move |conn| {
PersonMention::update_read(conn, mention.id, true)
})
.await?
.map_err(|e| LemmyError::from_error_message(e, "couldnt_update_person_mentions"))?;
}
}
send_comment_ws_message(
inserted_comment.id,
UserOperationCrud::CreateComment,
websocket_id,
data.form_id.to_owned(),
Some(local_user_view.person.id),
recipient_ids,
context,
)
.await
}
}