lemmy/crates/api_crud/src/comment/create.rs
Nutomic 28d6370c35
Rewrite delete activities (#1699)
* Limit type/method visibility in apub code

* Simplify db_queries traits by removing generics

* Simplify delete activity implementation

* Rewrite delete activities

* Implement helper functions for websocket message sending

* When receiving delete reason as empty string, change to none
2021-08-17 14:04:58 -04:00

160 lines
4.6 KiB
Rust

use crate::PerformCrud;
use actix_web::web::Data;
use lemmy_api_common::{
blocking,
check_community_ban,
comment::*,
get_local_user_view_from_jwt,
get_post,
send_local_notifs,
};
use lemmy_apub::{
activities::{
comment::create_or_update::CreateOrUpdateComment,
voting::vote::{Vote, VoteType},
CreateOrUpdateType,
},
generate_apub_endpoint,
EndpointType,
PostOrComment,
};
use lemmy_db_queries::{source::comment::Comment_, Crud, Likeable};
use lemmy_db_schema::source::comment::*;
use lemmy_utils::{
utils::{remove_slurs, scrape_text_for_mentions},
ApiError,
ConnectionId,
LemmyError,
};
use lemmy_websocket::{send::send_comment_ws_message, LemmyContext, UserOperationCrud};
#[async_trait::async_trait(?Send)]
impl PerformCrud for CreateComment {
type Response = CommentResponse;
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()).await?;
let content_slurs_removed = remove_slurs(&data.content.to_owned());
// 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 if post is locked, no new comments
if post.locked {
return Err(ApiError::err("locked").into());
}
// 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(|_| ApiError::err("couldnt_create_comment"))?;
if parent.post_id != post_id {
return Err(ApiError::err("couldnt_create_comment").into());
}
}
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(|_| ApiError::err("couldnt_create_comment"))?;
// Necessary to update the ap_id
let inserted_comment_id = inserted_comment.id;
let updated_comment: Comment =
blocking(context.pool(), move |conn| -> Result<Comment, LemmyError> {
let apub_id =
generate_apub_endpoint(EndpointType::Comment, &inserted_comment_id.to_string())?;
Ok(Comment::update_ap_id(conn, inserted_comment_id, apub_id)?)
})
.await?
.map_err(|_| ApiError::err("couldnt_create_comment"))?;
CreateOrUpdateComment::send(
&updated_comment,
&local_user_view.person,
CreateOrUpdateType::Create,
context,
)
.await?;
// 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.clone(),
local_user_view.person.clone(),
post,
context.pool(),
true,
)
.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);
if blocking(context.pool(), like).await?.is_err() {
return Err(ApiError::err("couldnt_like_comment").into());
}
let object = PostOrComment::Comment(Box::new(updated_comment));
Vote::send(
&object,
&local_user_view.person,
community_id,
VoteType::Like,
context,
)
.await?;
// If its a comment to yourself, mark it as read
if local_user_view.person.id == inserted_comment.creator_id {
let comment_id = inserted_comment.id;
blocking(context.pool(), move |conn| {
Comment::update_read(conn, comment_id, true)
})
.await?
.map_err(|_| ApiError::err("couldnt_update_comment"))?;
}
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
}
}