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::activities::{post::create_or_update::CreateOrUpdatePost, CreateOrUpdateType};
   5 use lemmy_db_queries::{source::post::Post_, Crud};
   6 use lemmy_db_schema::{naive_now, source::post::*};
   7 use lemmy_utils::{
   8   request::fetch_iframely_and_pictrs_data,
   9   utils::{check_slurs_opt, clean_url_params, is_valid_post_title},
  10   ApiError,
  11   ConnectionId,
  12   LemmyError,
  13 };
  14 use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud};
  15
  16 #[async_trait::async_trait(?Send)]
  17 impl PerformCrud for EditPost {
  18   type Response = PostResponse;
  19
  20   async fn perform(
  21     &self,
  22     context: &Data<LemmyContext>,
  23     websocket_id: Option<ConnectionId>,
  24   ) -> Result<PostResponse, LemmyError> {
  25     let data: &EditPost = self;
  26     let local_user_view = get_local_user_view_from_jwt(&data.auth, context.pool()).await?;
  27
  28     check_slurs_opt(&data.name)?;
  29     check_slurs_opt(&data.body)?;
  30
  31     if let Some(name) = &data.name {
  32       if !is_valid_post_title(name) {
  33         return Err(ApiError::err("invalid_post_title").into());
  34       }
  35     }
  36
  37     let post_id = data.post_id;
  38     let orig_post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
  39
  40     check_community_ban(
  41       local_user_view.person.id,
  42       orig_post.community_id,
  43       context.pool(),
  44     )
  45     .await?;
  46
  47     // Verify that only the creator can edit
  48     if !Post::is_post_creator(local_user_view.person.id, orig_post.creator_id) {
  49       return Err(ApiError::err("no_post_edit_allowed").into());
  50     }
  51
  52     // Fetch Iframely and Pictrs cached image
  53     let data_url = data.url.as_ref();
  54     let (iframely_response, pictrs_thumbnail) =
  55       fetch_iframely_and_pictrs_data(context.client(), data_url).await?;
  56     let (embed_title, embed_description, embed_html) = iframely_response
  57       .map(|u| (u.title, u.description, u.html))
  58       .unwrap_or((None, None, None));
  59
  60     let post_form = PostForm {
  61       creator_id: orig_post.creator_id.to_owned(),
  62       community_id: orig_post.community_id,
  63       name: data.name.to_owned().unwrap_or(orig_post.name),
  64       url: data_url.map(|u| clean_url_params(u.to_owned()).into()),
  65       body: data.body.to_owned(),
  66       nsfw: data.nsfw,
  67       updated: Some(naive_now()),
  68       embed_title,
  69       embed_description,
  70       embed_html,
  71       thumbnail_url: pictrs_thumbnail.map(|u| u.into()),
  72       ..PostForm::default()
  73     };
  74
  75     let post_id = data.post_id;
  76     let res = blocking(context.pool(), move |conn| {
  77       Post::update(conn, post_id, &post_form)
  78     })
  79     .await?;
  80     let updated_post: Post = match res {
  81       Ok(post) => post,
  82       Err(e) => {
  83         let err_type = if e.to_string() == "value too long for type character varying(200)" {
  84           "post_title_too_long"
  85         } else {
  86           "couldnt_update_post"
  87         };
  88
  89         return Err(ApiError::err(err_type).into());
  90       }
  91     };
  92
  93     // Send apub update
  94     CreateOrUpdatePost::send(
  95       &updated_post,
  96       &local_user_view.person,
  97       CreateOrUpdateType::Update,
  98       context,
  99     )
 100     .await?;
 101
 102     send_post_ws_message(
 103       data.post_id,
 104       UserOperationCrud::EditPost,
 105       websocket_id,
 106       Some(local_user_view.person.id),
 107       context,
 108     )
 109     .await
 110   }
 111 }