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,
+ build_response::{build_comment_response, send_local_notifs},
+ comment::{CommentResponse, CreateComment},
+ context::LemmyContext,
+ utils::{
+ check_community_ban,
+ check_community_deleted_or_removed,
+ check_post_deleted_or_removed,
+ generate_local_apub_endpoint,
+ get_post,
+ local_site_to_slur_regex,
+ local_user_view_from_jwt,
+ sanitize_html,
+ EndpointType,
+ },
};
-use lemmy_apub::{
- activities::{comment::create_or_update::CreateOrUpdateComment, CreateOrUpdateType},
- generate_apub_endpoint,
- ApubLikeableType,
- EndpointType,
+use lemmy_db_schema::{
+ impls::actor_language::default_post_language,
+ source::{
+ actor_language::CommunityLanguage,
+ comment::{Comment, CommentInsertForm, CommentLike, CommentLikeForm, CommentUpdateForm},
+ comment_reply::{CommentReply, CommentReplyUpdateForm},
+ local_site::LocalSite,
+ person_mention::{PersonMention, PersonMentionUpdateForm},
+ },
+ traits::{Crud, Likeable},
};
-use lemmy_db_queries::{source::comment::Comment_, Crud, Likeable};
-use lemmy_db_schema::source::comment::*;
-use lemmy_db_views::comment_view::CommentView;
use lemmy_utils::{
- utils::{remove_slurs, scrape_text_for_mentions},
- ApiError,
- ConnectionId,
- LemmyError,
+ error::{LemmyError, LemmyErrorExt, LemmyErrorType},
+ utils::{
+ mention::scrape_text_for_mentions,
+ slurs::remove_slurs,
+ validation::is_valid_body_field,
+ },
};
-use lemmy_websocket::{messages::SendComment, LemmyContext, UserOperationCrud};
+
+const MAX_COMMENT_DEPTH_LIMIT: usize = 100;
#[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> {
+ #[tracing::instrument(skip(context))]
+ async fn perform(&self, context: &Data<LemmyContext>) -> Result<CommentResponse, LemmyError> {
let data: &CreateComment = self;
- let local_user_view = get_local_user_view_from_jwt(&data.auth, context.pool()).await?;
+ let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
+ let local_site = LocalSite::read(&mut context.pool()).await?;
- let content_slurs_removed = remove_slurs(&data.content.to_owned());
+ let content = remove_slurs(
+ &data.content.clone(),
+ &local_site_to_slur_regex(&local_site),
+ );
+ is_valid_body_field(&Some(content.clone()), false)?;
+ let content = sanitize_html(&content);
// Check for a community ban
let post_id = data.post_id;
- let post = get_post(post_id, context.pool()).await?;
+ let post = get_post(post_id, &mut context.pool()).await?;
+ let community_id = post.community_id;
- check_community_ban(local_user_view.person.id, post.community_id, context.pool()).await?;
+ check_community_ban(local_user_view.person.id, community_id, &mut context.pool()).await?;
+ check_community_deleted_or_removed(community_id, &mut context.pool()).await?;
+ check_post_deleted_or_removed(&post)?;
// Check if post is locked, no new comments
if post.locked {
- return Err(ApiError::err("locked").into());
+ return Err(LemmyErrorType::Locked)?;
}
+ // Fetch the parent, if it exists
+ let parent_opt = if let Some(parent_id) = data.parent_id {
+ Comment::read(&mut context.pool(), parent_id).await.ok()
+ } else {
+ None
+ };
+
// 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"))?;
+ // Strange issue where sometimes the post ID of the parent comment is incorrect
+ if let Some(parent) = parent_opt.as_ref() {
if parent.post_id != post_id {
- return Err(ApiError::err("couldnt_create_comment").into());
+ return Err(LemmyErrorType::CouldntCreateComment)?;
}
+ check_comment_depth(parent)?;
}
- 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()
+ CommunityLanguage::is_allowed_community_language(
+ &mut context.pool(),
+ data.language_id,
+ community_id,
+ )
+ .await?;
+
+ // attempt to set default language if none was provided
+ let language_id = match data.language_id {
+ Some(lid) => Some(lid),
+ None => {
+ default_post_language(
+ &mut context.pool(),
+ community_id,
+ local_user_view.local_user.id,
+ )
+ .await?
+ }
};
+ let comment_form = CommentInsertForm::builder()
+ .content(content.clone())
+ .post_id(data.post_id)
+ .creator_id(local_user_view.person.id)
+ .language_id(language_id)
+ .build();
+
// 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"))?;
+ let parent_path = parent_opt.clone().map(|t| t.path);
+ let inserted_comment =
+ Comment::create(&mut context.pool(), &comment_form, parent_path.as_ref())
+ .await
+ .with_lemmy_type(LemmyErrorType::CouldntCreateComment)?;
// 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,
+ let protocol_and_hostname = context.settings().get_protocol_and_hostname();
+
+ let apub_id = generate_local_apub_endpoint(
+ EndpointType::Comment,
+ &inserted_comment_id.to_string(),
+ &protocol_and_hostname,
+ )?;
+ let updated_comment = Comment::update(
+ &mut context.pool(),
+ inserted_comment_id,
+ &CommentUpdateForm::builder().ap_id(Some(apub_id)).build(),
)
- .await?;
+ .await
+ .with_lemmy_type(LemmyErrorType::CouldntCreateComment)?;
// Scan the comment for user mentions, add those rows
- let post_id = post.id;
- let mentions = scrape_text_for_mentions(&comment_form.content);
+ let mentions = scrape_text_for_mentions(&content);
let recipient_ids = send_local_notifs(
mentions,
- updated_comment.clone(),
- local_user_view.person.clone(),
- post,
- context.pool(),
+ &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,
+ post_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());
- }
+ CommentLike::like(&mut context.pool(), &like_form)
+ .await
+ .with_lemmy_type(LemmyErrorType::CouldntLikeComment)?;
+
+ // If its a reply, mark the parent as read
+ if let Some(parent) = parent_opt {
+ let parent_id = parent.id;
+ let comment_reply = CommentReply::read_by_comment(&mut context.pool(), parent_id).await;
+ if let Ok(reply) = comment_reply {
+ CommentReply::update(
+ &mut context.pool(),
+ reply.id,
+ &CommentReplyUpdateForm { read: Some(true) },
+ )
+ .await
+ .with_lemmy_type(LemmyErrorType::CouldntUpdateReplies)?;
+ }
- updated_comment
- .send_like(&local_user_view.person, context)
- .await?;
-
- let person_id = local_user_view.person.id;
- let mut comment_view = blocking(context.pool(), move |conn| {
- CommentView::read(conn, inserted_comment.id, Some(person_id))
- })
- .await??;
-
- // If its a comment to yourself, mark it as read
- let comment_id = comment_view.comment.id;
- if local_user_view.person.id == comment_view.get_recipient_id() {
- blocking(context.pool(), move |conn| {
- Comment::update_read(conn, comment_id, true)
- })
- .await?
- .map_err(|_| ApiError::err("couldnt_update_comment"))?;
- comment_view.comment.read = true;
+ // If the parent has PersonMentions mark them as read too
+ let person_id = local_user_view.person.id;
+ let person_mention =
+ PersonMention::read_by_comment_and_person(&mut context.pool(), parent_id, person_id).await;
+ if let Ok(mention) = person_mention {
+ PersonMention::update(
+ &mut context.pool(),
+ mention.id,
+ &PersonMentionUpdateForm { read: Some(true) },
+ )
+ .await
+ .with_lemmy_type(LemmyErrorType::CouldntUpdatePersonMentions)?;
+ }
}
- let mut res = CommentResponse {
- comment_view,
+ build_comment_response(
+ context,
+ inserted_comment.id,
+ Some(local_user_view),
+ self.form_id.clone(),
recipient_ids,
- form_id: data.form_id.to_owned(),
- };
-
- context.chat_server().do_send(SendComment {
- op: UserOperationCrud::CreateComment,
- comment: res.clone(),
- websocket_id,
- });
-
- res.recipient_ids = Vec::new(); // Necessary to avoid doubles
+ )
+ .await
+ }
+}
- Ok(res)
+pub fn check_comment_depth(comment: &Comment) -> Result<(), LemmyError> {
+ let path = &comment.path.0;
+ let length = path.split('.').count();
+ if length > MAX_COMMENT_DEPTH_LIMIT {
+ Err(LemmyErrorType::MaxCommentDepthReached)?
+ } else {
+ Ok(())
}
}