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::{
22 impls::actor_language::default_post_language,
24 actor_language::CommunityLanguage,
26 post::{Post, PostForm, PostLike, PostLikeForm},
28 traits::{Crud, Likeable},
29 utils::diesel_option_overwrite,
31 use lemmy_db_views_actor::structs::CommunityView;
34 utils::{check_slurs, check_slurs_opt, clean_url_params, is_valid_post_title},
37 use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud};
38 use tracing::{warn, Instrument};
40 use webmention::{Webmention, WebmentionError};
42 #[async_trait::async_trait(?Send)]
43 impl PerformCrud for CreatePost {
44 type Response = PostResponse;
46 #[tracing::instrument(skip(context, websocket_id))]
49 context: &Data<LemmyContext>,
50 websocket_id: Option<ConnectionId>,
51 ) -> Result<PostResponse, LemmyError> {
52 let data: &CreatePost = self;
54 get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
56 let slur_regex = &context.settings().slur_regex();
57 check_slurs(&data.name, slur_regex)?;
58 check_slurs_opt(&data.body, slur_regex)?;
59 honeypot_check(&data.honeypot)?;
61 let data_url = data.url.as_ref();
62 let url = Some(data_url.map(clean_url_params).map(Into::into)); // TODO no good way to handle a "clear"
63 let body = diesel_option_overwrite(&data.body);
65 if !is_valid_post_title(&data.name) {
66 return Err(LemmyError::from_message("invalid_post_title"));
69 check_community_ban(local_user_view.person.id, data.community_id, context.pool()).await?;
70 check_community_deleted_or_removed(data.community_id, context.pool()).await?;
72 let community_id = data.community_id;
73 let community = blocking(context.pool(), move |conn| {
74 Community::read(conn, community_id)
77 if community.posting_restricted_to_mods {
78 let community_id = data.community_id;
79 let is_mod = blocking(context.pool(), move |conn| {
80 CommunityView::is_mod_or_admin(conn, local_user_view.local_user.person_id, community_id)
84 return Err(LemmyError::from_message("only_mods_can_post_in_community"));
88 // Fetch post links and pictrs cached image
89 let (metadata_res, thumbnail_url) =
90 fetch_site_data(context.client(), context.settings(), data_url).await;
91 let (embed_title, embed_description, embed_video_url) = metadata_res
92 .map(|u| (Some(u.title), Some(u.description), Some(u.embed_video_url)))
95 let language_id = match data.language_id {
96 Some(lid) => Some(lid),
98 blocking(context.pool(), move |conn| {
99 default_post_language(conn, community_id, local_user_view.local_user.id)
104 blocking(context.pool(), move |conn| {
105 CommunityLanguage::is_allowed_community_language(conn, language_id, community_id)
109 let post_form = PostForm {
110 name: data.name.trim().to_owned(),
113 community_id: data.community_id,
114 creator_id: local_user_view.person.id,
120 thumbnail_url: Some(thumbnail_url),
121 ..PostForm::default()
125 match blocking(context.pool(), move |conn| Post::create(conn, &post_form)).await? {
128 let err_type = if e.to_string() == "value too long for type character varying(200)" {
129 "post_title_too_long"
131 "couldnt_create_post"
134 return Err(LemmyError::from_error_message(e, err_type));
138 let inserted_post_id = inserted_post.id;
139 let protocol_and_hostname = context.settings().get_protocol_and_hostname();
140 let updated_post = blocking(context.pool(), move |conn| -> Result<Post, LemmyError> {
141 let apub_id = generate_local_apub_endpoint(
143 &inserted_post_id.to_string(),
144 &protocol_and_hostname,
146 Ok(Post::update_ap_id(conn, inserted_post_id, apub_id)?)
149 .map_err(|e| e.with_message("couldnt_create_post"))?;
151 // They like their own post by default
152 let person_id = local_user_view.person.id;
153 let post_id = inserted_post.id;
154 let like_form = PostLikeForm {
160 let like = move |conn: &mut _| PostLike::like(conn, &like_form);
161 blocking(context.pool(), like)
163 .map_err(|e| LemmyError::from_error_message(e, "couldnt_like_post"))?;
165 // Mark the post as read
166 mark_post_as_read(person_id, post_id, context.pool()).await?;
168 if let Some(url) = &updated_post.url {
170 Webmention::new::<Url>(updated_post.ap_id.clone().into(), url.clone().into())?;
171 webmention.set_checked(true);
174 .instrument(tracing::info_span!("Sending webmention"))
178 Err(WebmentionError::NoEndpointDiscovered(_)) => {}
179 Err(e) => warn!("Failed to send webmention: {}", e),
183 let apub_post: ApubPost = updated_post.into();
184 CreateOrUpdatePost::send(
186 &local_user_view.person.clone().into(),
187 CreateOrUpdateType::Create,
192 send_post_ws_message(
194 UserOperationCrud::CreatePost,
196 Some(local_user_view.person.id),