1 use crate::PerformCrud;
2 use actix_web::web::Data;
3 use lemmy_api_common::{
4 post::{CreatePost, PostResponse},
5 request::fetch_site_data,
8 check_community_deleted_or_removed,
9 get_local_user_view_from_jwt,
11 local_site_to_slur_regex,
14 websocket::{send::send_post_ws_message, UserOperationCrud},
18 generate_local_apub_endpoint,
19 objects::post::ApubPost,
20 protocol::activities::{create_or_update::page::CreateOrUpdatePage, CreateOrUpdateType},
23 use lemmy_db_schema::{
24 impls::actor_language::default_post_language,
26 actor_language::CommunityLanguage,
28 local_site::LocalSite,
29 post::{Post, PostInsertForm, PostLike, PostLikeForm, PostUpdateForm},
31 traits::{Crud, Likeable},
33 use lemmy_db_views_actor::structs::CommunityView;
36 utils::{check_slurs, check_slurs_opt, clean_url_params, is_valid_post_title},
39 use tracing::{warn, Instrument};
41 use webmention::{Webmention, WebmentionError};
43 #[async_trait::async_trait(?Send)]
44 impl PerformCrud for CreatePost {
45 type Response = PostResponse;
47 #[tracing::instrument(skip(context, websocket_id))]
50 context: &Data<LemmyContext>,
51 websocket_id: Option<ConnectionId>,
52 ) -> Result<PostResponse, LemmyError> {
53 let data: &CreatePost = self;
55 get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
56 let local_site = LocalSite::read(context.pool()).await?;
58 let slur_regex = local_site_to_slur_regex(&local_site);
59 check_slurs(&data.name, &slur_regex)?;
60 check_slurs_opt(&data.body, &slur_regex)?;
61 honeypot_check(&data.honeypot)?;
63 let data_url = data.url.as_ref();
64 let url = data_url.map(clean_url_params).map(Into::into); // TODO no good way to handle a "clear"
66 if !is_valid_post_title(&data.name) {
67 return Err(LemmyError::from_message("invalid_post_title"));
70 check_community_ban(local_user_view.person.id, data.community_id, context.pool()).await?;
71 check_community_deleted_or_removed(data.community_id, context.pool()).await?;
73 let community_id = data.community_id;
74 let community = Community::read(context.pool(), community_id).await?;
75 if community.posting_restricted_to_mods {
76 let community_id = data.community_id;
77 let is_mod = CommunityView::is_mod_or_admin(
79 local_user_view.local_user.person_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| (u.title, u.description, u.embed_video_url))
95 let language_id = match data.language_id {
96 Some(lid) => Some(lid),
98 default_post_language(context.pool(), community_id, local_user_view.local_user.id).await?
101 CommunityLanguage::is_allowed_community_language(context.pool(), language_id, community_id)
104 let post_form = PostInsertForm::builder()
105 .name(data.name.trim().to_owned())
107 .body(data.body.clone())
108 .community_id(data.community_id)
109 .creator_id(local_user_view.person.id)
111 .embed_title(embed_title)
112 .embed_description(embed_description)
113 .embed_video_url(embed_video_url)
114 .language_id(language_id)
115 .thumbnail_url(thumbnail_url)
118 let inserted_post = match Post::create(context.pool(), &post_form).await {
121 let err_type = if e.to_string() == "value too long for type character varying(200)" {
122 "post_title_too_long"
124 "couldnt_create_post"
127 return Err(LemmyError::from_error_message(e, err_type));
131 let inserted_post_id = inserted_post.id;
132 let protocol_and_hostname = context.settings().get_protocol_and_hostname();
133 let apub_id = generate_local_apub_endpoint(
135 &inserted_post_id.to_string(),
136 &protocol_and_hostname,
138 let updated_post = Post::update(
141 &PostUpdateForm::builder().ap_id(Some(apub_id)).build(),
144 .map_err(|e| LemmyError::from_error_message(e, "couldnt_create_post"))?;
146 // They like their own post by default
147 let person_id = local_user_view.person.id;
148 let post_id = inserted_post.id;
149 let like_form = PostLikeForm {
155 PostLike::like(context.pool(), &like_form)
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 CreateOrUpdatePage::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),