crates/api_crud/src/comment/update.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   comment::{CommentResponse, EditComment},
   5   context::LemmyContext,
   6   utils::{check_community_ban, get_local_user_view_from_jwt, local_site_to_slur_regex},
   7   websocket::UserOperationCrud,
   8 };
   9 use lemmy_db_schema::{
  10   source::{
  11     actor_language::CommunityLanguage,
  12     comment::{Comment, CommentUpdateForm},
  13     local_site::LocalSite,
  14   },
  15   traits::Crud,
  16   utils::naive_now,
  17 };
  18 use lemmy_db_views::structs::CommentView;
  19 use lemmy_utils::{
  20   error::LemmyError,
  21   utils::{
  22     mention::scrape_text_for_mentions,
  23     slurs::remove_slurs,
  24     validation::is_valid_body_field,
  25   },
  26   ConnectionId,
  27 };
  28
  29 #[async_trait::async_trait(?Send)]
  30 impl PerformCrud for EditComment {
  31   type Response = CommentResponse;
  32
  33   #[tracing::instrument(skip(context, websocket_id))]
  34   async fn perform(
  35     &self,
  36     context: &Data<LemmyContext>,
  37     websocket_id: Option<ConnectionId>,
  38   ) -> Result<CommentResponse, LemmyError> {
  39     let data: &EditComment = self;
  40     let local_user_view =
  41       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  42     let local_site = LocalSite::read(context.pool()).await?;
  43
  44     let comment_id = data.comment_id;
  45     let orig_comment = CommentView::read(context.pool(), comment_id, None).await?;
  46
  47     check_community_ban(
  48       local_user_view.person.id,
  49       orig_comment.community.id,
  50       context.pool(),
  51     )
  52     .await?;
  53
  54     // Verify that only the creator can edit
  55     if local_user_view.person.id != orig_comment.creator.id {
  56       return Err(LemmyError::from_message("no_comment_edit_allowed"));
  57     }
  58
  59     let language_id = self.language_id;
  60     CommunityLanguage::is_allowed_community_language(
  61       context.pool(),
  62       language_id,
  63       orig_comment.community.id,
  64     )
  65     .await?;
  66
  67     // Update the Content
  68     let content_slurs_removed = data
  69       .content
  70       .as_ref()
  71       .map(|c| remove_slurs(c, &local_site_to_slur_regex(&local_site)));
  72
  73     is_valid_body_field(&content_slurs_removed)?;
  74
  75     let comment_id = data.comment_id;
  76     let form = CommentUpdateForm::builder()
  77       .content(content_slurs_removed)
  78       .language_id(data.language_id)
  79       .updated(Some(Some(naive_now())))
  80       .build();
  81     let updated_comment = Comment::update(context.pool(), comment_id, &form)
  82       .await
  83       .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_comment"))?;
  84
  85     // Do the mentions / recipients
  86     let updated_comment_content = updated_comment.content.clone();
  87     let mentions = scrape_text_for_mentions(&updated_comment_content);
  88     let recipient_ids = context
  89       .send_local_notifs(
  90         mentions,
  91         &updated_comment,
  92         &local_user_view.person,
  93         &orig_comment.post,
  94         false,
  95       )
  96       .await?;
  97
  98     context
  99       .send_comment_ws_message(
 100         &UserOperationCrud::EditComment,
 101         data.comment_id,
 102         websocket_id,
 103         data.form_id.clone(),
 104         None,
 105         recipient_ids,
 106       )
 107       .await
 108   }
 109 }