1 use crate::PerformCrud;
2 use actix_web::web::Data;
3 use lemmy_api_common::{
4 post::{CreatePost, PostResponse},
5 request::fetch_site_data,
9 check_community_deleted_or_removed,
10 get_local_user_view_from_jwt,
16 generate_local_apub_endpoint,
17 objects::post::ApubPost,
18 protocol::activities::{create_or_update::post::CreateOrUpdatePost, CreateOrUpdateType},
21 use lemmy_db_schema::{
25 post::{Post, PostForm, PostLike, PostLikeForm},
27 traits::{Crud, Likeable},
28 utils::diesel_option_overwrite,
30 use lemmy_db_views_actor::structs::CommunityView;
33 utils::{check_slurs, check_slurs_opt, clean_url_params, is_valid_post_title},
36 use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud};
37 use tracing::{warn, Instrument};
39 use webmention::{Webmention, WebmentionError};
41 #[async_trait::async_trait(?Send)]
42 impl PerformCrud for CreatePost {
43 type Response = PostResponse;
45 #[tracing::instrument(skip(context, websocket_id))]
48 context: &Data<LemmyContext>,
49 websocket_id: Option<ConnectionId>,
50 ) -> Result<PostResponse, LemmyError> {
51 let data: &CreatePost = self;
53 get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
55 let slur_regex = &context.settings().slur_regex();
56 check_slurs(&data.name, slur_regex)?;
57 check_slurs_opt(&data.body, slur_regex)?;
58 honeypot_check(&data.honeypot)?;
60 let data_url = data.url.as_ref();
61 let url = Some(data_url.map(clean_url_params).map(Into::into)); // TODO no good way to handle a "clear"
62 let body = diesel_option_overwrite(&data.body);
64 if !is_valid_post_title(&data.name) {
65 return Err(LemmyError::from_message("invalid_post_title"));
68 check_community_ban(local_user_view.person.id, data.community_id, context.pool()).await?;
69 check_community_deleted_or_removed(data.community_id, context.pool()).await?;
71 let community_id = data.community_id;
72 let community = blocking(context.pool(), move |conn| {
73 Community::read(conn, community_id)
76 if community.posting_restricted_to_mods {
77 let community_id = data.community_id;
78 let is_mod = blocking(context.pool(), move |conn| {
79 CommunityView::is_mod_or_admin(conn, local_user_view.local_user.person_id, community_id)
83 return Err(LemmyError::from_message("only_mods_can_post_in_community"));
87 // Fetch post links and pictrs cached image
88 let (metadata_res, thumbnail_url) =
89 fetch_site_data(context.client(), context.settings(), data_url).await;
90 let (embed_title, embed_description, embed_video_url) = metadata_res
91 .map(|u| (Some(u.title), Some(u.description), Some(u.embed_video_url)))
94 let language_id = Some(
95 data.language_id.unwrap_or(
96 blocking(context.pool(), move |conn| {
97 Language::read_undetermined(conn)
103 let post_form = PostForm {
104 name: data.name.trim().to_owned(),
107 community_id: data.community_id,
108 creator_id: local_user_view.person.id,
114 thumbnail_url: Some(thumbnail_url),
115 ..PostForm::default()
119 match blocking(context.pool(), move |conn| Post::create(conn, &post_form)).await? {
122 let err_type = if e.to_string() == "value too long for type character varying(200)" {
123 "post_title_too_long"
125 "couldnt_create_post"
128 return Err(LemmyError::from_error_message(e, err_type));
132 let inserted_post_id = inserted_post.id;
133 let protocol_and_hostname = context.settings().get_protocol_and_hostname();
134 let updated_post = blocking(context.pool(), move |conn| -> Result<Post, LemmyError> {
135 let apub_id = generate_local_apub_endpoint(
137 &inserted_post_id.to_string(),
138 &protocol_and_hostname,
140 Ok(Post::update_ap_id(conn, inserted_post_id, apub_id)?)
143 .map_err(|e| e.with_message("couldnt_create_post"))?;
145 // They like their own post by default
146 let person_id = local_user_view.person.id;
147 let post_id = inserted_post.id;
148 let like_form = PostLikeForm {
154 let like = move |conn: &'_ _| PostLike::like(conn, &like_form);
155 blocking(context.pool(), like)
157 .map_err(|e| LemmyError::from_error_message(e, "couldnt_like_post"))?;
159 // Mark the post as read
160 mark_post_as_read(person_id, post_id, context.pool()).await?;
162 if let Some(url) = &updated_post.url {
164 Webmention::new::<Url>(updated_post.ap_id.clone().into(), url.clone().into())?;
165 webmention.set_checked(true);
168 .instrument(tracing::info_span!("Sending webmention"))
172 Err(WebmentionError::NoEndpointDiscovered(_)) => {}
173 Err(e) => warn!("Failed to send webmention: {}", e),
177 let apub_post: ApubPost = updated_post.into();
178 CreateOrUpdatePost::send(
180 &local_user_view.person.clone().into(),
181 CreateOrUpdateType::Create,
186 send_post_ws_message(
188 UserOperationCrud::CreatePost,
190 Some(local_user_view.person.id),