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::{
24 post::{Post, PostForm, PostLike, PostLikeForm},
26 traits::{Crud, Likeable},
28 use lemmy_db_views_actor::structs::CommunityView;
40 use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud};
41 use tracing::{warn, Instrument};
43 use webmention::{Webmention, WebmentionError};
45 #[async_trait::async_trait(?Send)]
46 impl PerformCrud for CreatePost {
47 type Response = PostResponse;
49 #[tracing::instrument(skip(context, websocket_id))]
52 context: &Data<LemmyContext>,
53 websocket_id: Option<ConnectionId>,
54 ) -> Result<PostResponse, LemmyError> {
55 let data: &CreatePost = self;
57 get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
59 let slur_regex = &context.settings().slur_regex();
60 check_slurs(&data.name, slur_regex)?;
61 check_slurs_opt(&data.body, slur_regex)?;
62 honeypot_check(&data.honeypot)?;
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 data_url = data.url.as_ref();
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| (u.title, u.description, u.embed_video_url))
95 let post_form = PostForm {
96 name: data.name.trim().to_owned(),
97 url: data_url.map(|u| clean_url_params(u.to_owned()).into()),
98 body: clean_optional_text(&data.body),
99 community_id: data.community_id,
100 creator_id: local_user_view.person.id,
106 ..PostForm::default()
110 match blocking(context.pool(), move |conn| Post::create(conn, &post_form)).await? {
113 let err_type = if e.to_string() == "value too long for type character varying(200)" {
114 "post_title_too_long"
116 "couldnt_create_post"
119 return Err(LemmyError::from_error_message(e, err_type));
123 let inserted_post_id = inserted_post.id;
124 let protocol_and_hostname = context.settings().get_protocol_and_hostname();
125 let updated_post = blocking(context.pool(), move |conn| -> Result<Post, LemmyError> {
126 let apub_id = generate_local_apub_endpoint(
128 &inserted_post_id.to_string(),
129 &protocol_and_hostname,
131 Ok(Post::update_ap_id(conn, inserted_post_id, apub_id)?)
134 .map_err(|e| e.with_message("couldnt_create_post"))?;
136 // They like their own post by default
137 let person_id = local_user_view.person.id;
138 let post_id = inserted_post.id;
139 let like_form = PostLikeForm {
145 let like = move |conn: &'_ _| PostLike::like(conn, &like_form);
146 blocking(context.pool(), like)
148 .map_err(|e| LemmyError::from_error_message(e, "couldnt_like_post"))?;
150 // Mark the post as read
151 mark_post_as_read(person_id, post_id, context.pool()).await?;
153 if let Some(url) = &updated_post.url {
155 Webmention::new::<Url>(updated_post.ap_id.clone().into(), url.clone().into())?;
156 webmention.set_checked(true);
159 .instrument(tracing::info_span!("Sending webmention"))
163 Err(WebmentionError::NoEndpointDiscovered(_)) => {}
164 Err(e) => warn!("Failed to send webmention: {}", e),
168 let apub_post: ApubPost = updated_post.into();
169 CreateOrUpdatePost::send(
171 &local_user_view.person.clone().into(),
172 CreateOrUpdateType::Create,
177 send_post_ws_message(
179 UserOperationCrud::CreatePost,
181 Some(local_user_view.person.id),