lemmy/crates/api_crud/src/comment/create.rs

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5.8 KiB
Rust
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use crate::PerformCrud;
use actix_web::web::Data;
use lemmy_api_common::{
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,
EndpointType,
},
};
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use lemmy_db_schema::{
source::{
actor_language::CommunityLanguage,
comment::{Comment, CommentInsertForm, CommentLike, CommentLikeForm, CommentUpdateForm},
comment_reply::{CommentReply, CommentReplyUpdateForm},
local_site::LocalSite,
person_mention::{PersonMention, PersonMentionUpdateForm},
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},
traits::{Crud, Likeable},
};
use lemmy_utils::{
error::LemmyError,
utils::{
mention::scrape_text_for_mentions,
slurs::remove_slurs,
validation::is_valid_body_field,
},
};
#[async_trait::async_trait(?Send)]
impl PerformCrud for CreateComment {
type Response = CommentResponse;
#[tracing::instrument(skip(context))]
async fn perform(&self, context: &Data<LemmyContext>) -> Result<CommentResponse, LemmyError> {
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let data: &CreateComment = self;
let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
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let local_site = LocalSite::read(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()))?;
// 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"));
}
// Fetch the parent, if it exists
let parent_opt = if let Some(parent_id) = data.parent_id {
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Comment::read(context.pool(), parent_id).await.ok()
} else {
None
};
// If there's a parent_id, check to make sure that comment is in that post
// 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"));
}
}
// if no language is set, copy language from parent post/comment
let parent_language = parent_opt
.as_ref()
.map(|p| p.language_id)
.unwrap_or(post.language_id);
let language_id = data.language_id.unwrap_or(parent_language);
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CommunityLanguage::is_allowed_community_language(
context.pool(),
Some(language_id),
community_id,
)
.await?;
let comment_form = CommentInsertForm::builder()
.content(content_slurs_removed.clone())
.post_id(data.post_id)
.creator_id(local_user_view.person.id)
.language_id(Some(language_id))
.build();
// 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())
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.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();
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let apub_id = generate_local_apub_endpoint(
EndpointType::Comment,
&inserted_comment_id.to_string(),
&protocol_and_hostname,
)?;
let updated_comment = Comment::update(
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"))?;
// Scan the comment for user mentions, add those rows
let mentions = scrape_text_for_mentions(&content_slurs_removed);
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: post.id,
person_id: local_user_view.person.id,
score: 1,
};
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CommentLike::like(context.pool(), &like_form)
.await
.map_err(|e| LemmyError::from_error_message(e, "couldnt_like_comment"))?;
// If its a reply, mark the parent as read
if let Some(parent) = parent_opt {
let parent_id = parent.id;
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let comment_reply = CommentReply::read_by_comment(context.pool(), parent_id).await;
if let Ok(reply) = comment_reply {
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CommentReply::update(
context.pool(),
reply.id,
&CommentReplyUpdateForm { read: Some(true) },
)
.await
.map_err(|e| LemmyError::from_error_message(e, "couldnt_update_replies"))?;
}
// If the parent has PersonMentions mark them as read too
let person_id = local_user_view.person.id;
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let person_mention =
PersonMention::read_by_comment_and_person(context.pool(), parent_id, person_id).await;
if let Ok(mention) = person_mention {
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PersonMention::update(
context.pool(),
mention.id,
&PersonMentionUpdateForm { read: Some(true) },
)
.await
.map_err(|e| LemmyError::from_error_message(e, "couldnt_update_person_mentions"))?;
}
}
build_comment_response(
context,
inserted_comment.id,
Some(local_user_view),
self.form_id.clone(),
recipient_ids,
)
.await
}
}