use actix_web::web::Data; use lemmy_api_common::{ post::{EditPost, PostResponse}, request::fetch_site_data, utils::{ blocking, check_community_ban, check_community_deleted_or_removed, get_local_user_view_from_jwt, }, }; use lemmy_apub::protocol::activities::{ create_or_update::post::CreateOrUpdatePost, CreateOrUpdateType, }; use lemmy_db_schema::{ source::{ language::Language, post::{Post, PostForm}, }, traits::Crud, utils::{diesel_option_overwrite, naive_now}, }; use lemmy_utils::{ error::LemmyError, utils::{check_slurs_opt, clean_url_params, is_valid_post_title}, ConnectionId, }; use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud}; use crate::PerformCrud; #[async_trait::async_trait(?Send)] impl PerformCrud for EditPost { type Response = PostResponse; #[tracing::instrument(skip(context, websocket_id))] async fn perform( &self, context: &Data, websocket_id: Option, ) -> Result { let data: &EditPost = self; let local_user_view = get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?; let data_url = data.url.as_ref(); // TODO No good way to handle a clear. // Issue link: https://github.com/LemmyNet/lemmy/issues/2287 let url = Some(data_url.map(clean_url_params).map(Into::into)); let body = diesel_option_overwrite(&data.body); let slur_regex = &context.settings().slur_regex(); check_slurs_opt(&data.name, slur_regex)?; check_slurs_opt(&data.body, slur_regex)?; if let Some(name) = &data.name { if !is_valid_post_title(name) { return Err(LemmyError::from_message("invalid_post_title")); } } let post_id = data.post_id; let orig_post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??; check_community_ban( local_user_view.person.id, orig_post.community_id, context.pool(), ) .await?; check_community_deleted_or_removed(orig_post.community_id, context.pool()).await?; // Verify that only the creator can edit if !Post::is_post_creator(local_user_view.person.id, orig_post.creator_id) { return Err(LemmyError::from_message("no_post_edit_allowed")); } // Fetch post links and Pictrs cached image let data_url = data.url.as_ref(); let (metadata_res, thumbnail_url) = fetch_site_data(context.client(), context.settings(), data_url).await; let (embed_title, embed_description, embed_video_url) = metadata_res .map(|u| (Some(u.title), Some(u.description), Some(u.embed_video_url))) .unwrap_or_default(); let language_id = Some( data.language_id.unwrap_or( blocking(context.pool(), move |conn| { Language::read_undetermined(conn) }) .await??, ), ); let post_form = PostForm { creator_id: orig_post.creator_id.to_owned(), community_id: orig_post.community_id, name: data.name.to_owned().unwrap_or(orig_post.name), url, body, nsfw: data.nsfw, updated: Some(naive_now()), embed_title, embed_description, embed_video_url, language_id, thumbnail_url: Some(thumbnail_url), ..PostForm::default() }; let post_id = data.post_id; let res = blocking(context.pool(), move |conn| { Post::update(conn, post_id, &post_form) }) .await?; let updated_post: Post = match res { Ok(post) => post, Err(e) => { let err_type = if e.to_string() == "value too long for type character varying(200)" { "post_title_too_long" } else { "couldnt_update_post" }; return Err(LemmyError::from_error_message(e, err_type)); } }; // Send apub update CreateOrUpdatePost::send( updated_post.into(), &local_user_view.person.clone().into(), CreateOrUpdateType::Update, context, ) .await?; send_post_ws_message( data.post_id, UserOperationCrud::EditPost, websocket_id, Some(local_user_view.person.id), context, ) .await } }