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, check_slurs_opt, is_valid_post_title},
  11   ApiError,
  12   ConnectionId,
  13   LemmyError,
  14 };
  15 use lemmy_websocket::{messages::SendPost, LemmyContext, UserOperation};
  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(&data.name)?;
  30     check_slurs_opt(&data.body)?;
  31
  32     if !is_valid_post_title(&data.name) {
  33       return Err(ApiError::err("invalid_post_title").into());
  34     }
  35
  36     let post_id = data.post_id;
  37     let orig_post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
  38
  39     check_community_ban(
  40       local_user_view.person.id,
  41       orig_post.community_id,
  42       context.pool(),
  43     )
  44     .await?;
  45
  46     // Verify that only the creator can edit
  47     if !Post::is_post_creator(local_user_view.person.id, orig_post.creator_id) {
  48       return Err(ApiError::err("no_post_edit_allowed").into());
  49     }
  50
  51     // Fetch Iframely and Pictrs cached image
  52     let data_url = data.url.as_ref();
  53     let (iframely_title, iframely_description, iframely_html, pictrs_thumbnail) =
  54       fetch_iframely_and_pictrs_data(context.client(), data_url).await;
  55
  56     let post_form = PostForm {
  57       name: data.name.trim().to_owned(),
  58       url: data_url.map(|u| u.to_owned().into()),
  59       body: data.body.to_owned(),
  60       nsfw: data.nsfw,
  61       creator_id: orig_post.creator_id.to_owned(),
  62       community_id: orig_post.community_id,
  63       removed: Some(orig_post.removed),
  64       deleted: Some(orig_post.deleted),
  65       locked: Some(orig_post.locked),
  66       stickied: Some(orig_post.stickied),
  67       updated: Some(naive_now()),
  68       embed_title: iframely_title,
  69       embed_description: iframely_description,
  70       embed_html: iframely_html,
  71       thumbnail_url: pictrs_thumbnail.map(|u| u.into()),
  72       ap_id: Some(orig_post.ap_id),
  73       local: orig_post.local,
  74       published: None,
  75     };
  76
  77     let post_id = data.post_id;
  78     let res = blocking(context.pool(), move |conn| {
  79       Post::update(conn, post_id, &post_form)
  80     })
  81     .await?;
  82     let updated_post: Post = match res {
  83       Ok(post) => post,
  84       Err(e) => {
  85         let err_type = if e.to_string() == "value too long for type character varying(200)" {
  86           "post_title_too_long"
  87         } else {
  88           "couldnt_update_post"
  89         };
  90
  91         return Err(ApiError::err(err_type).into());
  92       }
  93     };
  94
  95     // Send apub update
  96     updated_post
  97       .send_update(&local_user_view.person, context)
  98       .await?;
  99
 100     let post_id = data.post_id;
 101     let post_view = blocking(context.pool(), move |conn| {
 102       PostView::read(conn, post_id, Some(local_user_view.person.id))
 103     })
 104     .await??;
 105
 106     let res = PostResponse { post_view };
 107
 108     context.chat_server().do_send(SendPost {
 109       op: UserOperation::EditPost,
 110       post: res.clone(),
 111       websocket_id,
 112     });
 113
 114     Ok(res)
 115   }
 116 }