traits::{Crud, Likeable},
};
use lemmy_utils::{
- error::LemmyError,
+ error::{LemmyError, LemmyErrorExt, LemmyErrorType},
utils::{
mention::scrape_text_for_mentions,
slurs::remove_slurs,
},
};
+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>) -> Result<CommentResponse, LemmyError> {
let data: &CreateComment = self;
let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
- let local_site = LocalSite::read(context.pool()).await?;
+ let local_site = LocalSite::read(&mut context.pool()).await?;
let content_slurs_removed = remove_slurs(
&data.content.clone(),
&local_site_to_slur_regex(&local_site),
);
- is_valid_body_field(&Some(content_slurs_removed.clone()))?;
+ is_valid_body_field(&Some(content_slurs_removed.clone()), false)?;
// 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, community_id, context.pool()).await?;
- check_community_deleted_or_removed(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(LemmyError::from_message("locked"));
+ return Err(LemmyErrorType::Locked)?;
}
// Fetch the parent, if it exists
let parent_opt = if let Some(parent_id) = data.parent_id {
- Comment::read(context.pool(), parent_id).await.ok()
+ Comment::read(&mut context.pool(), parent_id).await.ok()
} else {
None
};
// 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(LemmyError::from_message("couldnt_create_comment"));
+ return Err(LemmyErrorType::CouldntCreateComment)?;
}
+ check_comment_depth(parent)?;
}
// if no language is set, copy language from parent post/comment
let language_id = data.language_id.unwrap_or(parent_language);
CommunityLanguage::is_allowed_community_language(
- context.pool(),
+ &mut context.pool(),
Some(language_id),
community_id,
)
// Create the comment
let parent_path = parent_opt.clone().map(|t| t.path);
- let inserted_comment = Comment::create(context.pool(), &comment_form, parent_path.as_ref())
- .await
- .map_err(|e| LemmyError::from_error_message(e, "couldnt_create_comment"))?;
+ 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;
&protocol_and_hostname,
)?;
let updated_comment = Comment::update(
- context.pool(),
+ &mut context.pool(),
inserted_comment_id,
&CommentUpdateForm::builder().ap_id(Some(apub_id)).build(),
)
.await
- .map_err(|e| LemmyError::from_error_message(e, "couldnt_create_comment"))?;
+ .with_lemmy_type(LemmyErrorType::CouldntCreateComment)?;
// Scan the comment for user mentions, add those rows
let mentions = scrape_text_for_mentions(&content_slurs_removed);
score: 1,
};
- CommentLike::like(context.pool(), &like_form)
+ CommentLike::like(&mut context.pool(), &like_form)
.await
- .map_err(|e| LemmyError::from_error_message(e, "couldnt_like_comment"))?;
+ .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(context.pool(), parent_id).await;
+ let comment_reply = CommentReply::read_by_comment(&mut context.pool(), parent_id).await;
if let Ok(reply) = comment_reply {
CommentReply::update(
- context.pool(),
+ &mut context.pool(),
reply.id,
&CommentReplyUpdateForm { read: Some(true) },
)
.await
- .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_replies"))?;
+ .with_lemmy_type(LemmyErrorType::CouldntUpdateReplies)?;
}
// 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(context.pool(), parent_id, person_id).await;
+ PersonMention::read_by_comment_and_person(&mut context.pool(), parent_id, person_id).await;
if let Ok(mention) = person_mention {
PersonMention::update(
- context.pool(),
+ &mut context.pool(),
mention.id,
&PersonMentionUpdateForm { read: Some(true) },
)
.await
- .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_person_mentions"))?;
+ .with_lemmy_type(LemmyErrorType::CouldntUpdatePersonMentions)?;
}
}
.await
}
}
+
+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(())
+ }
+}