crates/api_crud/src/post/update.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{blocking, check_community_ban, get_local_user_view_from_jwt, post::*};
   4 use lemmy_apub::ApubObjectType;
   5 use lemmy_db_queries::{source::post::Post_, Crud};
   6 use lemmy_db_schema::{naive_now, source::post::*};
   7 use lemmy_db_views::post_view::PostView;
   8 use lemmy_utils::{
   9   request::fetch_iframely_and_pictrs_data,
  10   utils::{check_slurs_opt, is_valid_post_title},
  11   ApiError,
  12   ConnectionId,
  13   LemmyError,
  14 };
  15 use lemmy_websocket::{messages::SendPost, LemmyContext, UserOperationCrud};
  16
  17 #[async_trait::async_trait(?Send)]
  18 impl PerformCrud for EditPost {
  19   type Response = PostResponse;
  20
  21   async fn perform(
  22     &self,
  23     context: &Data<LemmyContext>,
  24     websocket_id: Option<ConnectionId>,
  25   ) -> Result<PostResponse, LemmyError> {
  26     let data: &EditPost = &self;
  27     let local_user_view = get_local_user_view_from_jwt(&data.auth, context.pool()).await?;
  28
  29     check_slurs_opt(&data.name)?;
  30     check_slurs_opt(&data.body)?;
  31
  32     if let Some(name) = &data.name {
  33       if !is_valid_post_title(name) {
  34         return Err(ApiError::err("invalid_post_title").into());
  35       }
  36     }
  37
  38     let post_id = data.post_id;
  39     let orig_post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
  40
  41     check_community_ban(
  42       local_user_view.person.id,
  43       orig_post.community_id,
  44       context.pool(),
  45     )
  46     .await?;
  47
  48     // Verify that only the creator can edit
  49     if !Post::is_post_creator(local_user_view.person.id, orig_post.creator_id) {
  50       return Err(ApiError::err("no_post_edit_allowed").into());
  51     }
  52
  53     // Fetch Iframely and Pictrs cached image
  54     let data_url = data.url.as_ref();
  55     let (iframely_title, iframely_description, iframely_html, pictrs_thumbnail) =
  56       fetch_iframely_and_pictrs_data(context.client(), data_url).await;
  57
  58     let post_form = PostForm {
  59       creator_id: orig_post.creator_id.to_owned(),
  60       community_id: orig_post.community_id,
  61       name: data.name.to_owned().unwrap_or(orig_post.name),
  62       url: data_url.map(|u| u.to_owned().into()),
  63       body: data.body.to_owned(),
  64       nsfw: data.nsfw,
  65       updated: Some(naive_now()),
  66       embed_title: iframely_title,
  67       embed_description: iframely_description,
  68       embed_html: iframely_html,
  69       thumbnail_url: pictrs_thumbnail.map(|u| u.into()),
  70       ..PostForm::default()
  71     };
  72
  73     let post_id = data.post_id;
  74     let res = blocking(context.pool(), move |conn| {
  75       Post::update(conn, post_id, &post_form)
  76     })
  77     .await?;
  78     let updated_post: Post = match res {
  79       Ok(post) => post,
  80       Err(e) => {
  81         let err_type = if e.to_string() == "value too long for type character varying(200)" {
  82           "post_title_too_long"
  83         } else {
  84           "couldnt_update_post"
  85         };
  86
  87         return Err(ApiError::err(err_type).into());
  88       }
  89     };
  90
  91     // Send apub update
  92     updated_post
  93       .send_update(&local_user_view.person, context)
  94       .await?;
  95
  96     let post_id = data.post_id;
  97     let post_view = blocking(context.pool(), move |conn| {
  98       PostView::read(conn, post_id, Some(local_user_view.person.id))
  99     })
 100     .await??;
 101
 102     let res = PostResponse { post_view };
 103
 104     context.chat_server().do_send(SendPost {
 105       op: UserOperationCrud::EditPost,
 106       post: res.clone(),
 107       websocket_id,
 108     });
 109
 110     Ok(res)
 111   }
 112 }