1 use crate::PerformCrud;
2 use actix_web::web::Data;
3 use lemmy_api_common::{
4 build_response::build_post_response,
6 post::{CreatePost, PostResponse},
7 request::fetch_site_data,
10 check_community_deleted_or_removed,
11 generate_local_apub_endpoint,
13 local_site_to_slur_regex,
14 local_user_view_from_jwt,
19 use lemmy_db_schema::{
20 impls::actor_language::default_post_language,
22 actor_language::CommunityLanguage,
24 local_site::LocalSite,
25 post::{Post, PostInsertForm, PostLike, PostLikeForm, PostUpdateForm},
27 traits::{Crud, Likeable},
29 use lemmy_db_views_actor::structs::CommunityView;
33 slurs::{check_slurs, check_slurs_opt},
34 validation::{check_url_scheme, clean_url_params, is_valid_body_field, is_valid_post_title},
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))]
46 async fn perform(&self, context: &Data<LemmyContext>) -> Result<PostResponse, LemmyError> {
47 let data: &CreatePost = self;
48 let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
49 let local_site = LocalSite::read(context.pool()).await?;
51 let slur_regex = local_site_to_slur_regex(&local_site);
52 check_slurs(&data.name, &slur_regex)?;
53 check_slurs_opt(&data.body, &slur_regex)?;
54 honeypot_check(&data.honeypot)?;
56 let data_url = data.url.as_ref();
57 let url = data_url.map(clean_url_params).map(Into::into); // TODO no good way to handle a "clear"
59 is_valid_post_title(&data.name)?;
60 is_valid_body_field(&data.body, true)?;
61 check_url_scheme(&data.url)?;
63 check_community_ban(local_user_view.person.id, data.community_id, context.pool()).await?;
64 check_community_deleted_or_removed(data.community_id, context.pool()).await?;
66 let community_id = data.community_id;
67 let community = Community::read(context.pool(), community_id).await?;
68 if community.posting_restricted_to_mods {
69 let community_id = data.community_id;
70 let is_mod = CommunityView::is_mod_or_admin(
72 local_user_view.local_user.person_id,
77 return Err(LemmyError::from_message("only_mods_can_post_in_community"));
81 // Fetch post links and pictrs cached image
82 let (metadata_res, thumbnail_url) =
83 fetch_site_data(context.client(), context.settings(), data_url, true).await;
84 let (embed_title, embed_description, embed_video_url) = metadata_res
85 .map(|u| (u.title, u.description, u.embed_video_url))
88 let language_id = match data.language_id {
89 Some(lid) => Some(lid),
91 default_post_language(context.pool(), community_id, local_user_view.local_user.id).await?
94 CommunityLanguage::is_allowed_community_language(context.pool(), language_id, community_id)
97 let post_form = PostInsertForm::builder()
98 .name(data.name.trim().to_owned())
100 .body(data.body.clone())
101 .community_id(data.community_id)
102 .creator_id(local_user_view.person.id)
104 .embed_title(embed_title)
105 .embed_description(embed_description)
106 .embed_video_url(embed_video_url)
107 .language_id(language_id)
108 .thumbnail_url(thumbnail_url)
111 let inserted_post = Post::create(context.pool(), &post_form)
113 .map_err(|e| LemmyError::from_error_message(e, "couldnt_create_post"))?;
115 let inserted_post_id = inserted_post.id;
116 let protocol_and_hostname = context.settings().get_protocol_and_hostname();
117 let apub_id = generate_local_apub_endpoint(
119 &inserted_post_id.to_string(),
120 &protocol_and_hostname,
122 let updated_post = Post::update(
125 &PostUpdateForm::builder().ap_id(Some(apub_id)).build(),
128 .map_err(|e| LemmyError::from_error_message(e, "couldnt_create_post"))?;
130 // They like their own post by default
131 let person_id = local_user_view.person.id;
132 let post_id = inserted_post.id;
133 let like_form = PostLikeForm {
139 PostLike::like(context.pool(), &like_form)
141 .map_err(|e| LemmyError::from_error_message(e, "couldnt_like_post"))?;
143 // Mark the post as read
144 mark_post_as_read(person_id, post_id, context.pool()).await?;
146 if let Some(url) = &updated_post.url {
148 Webmention::new::<Url>(updated_post.ap_id.clone().into(), url.clone().into())?;
149 webmention.set_checked(true);
152 .instrument(tracing::info_span!("Sending webmention"))
156 Err(WebmentionError::NoEndpointDiscovered(_)) => {}
157 Err(e) => warn!("Failed to send webmention: {}", e),
161 build_post_response(context, community_id, person_id, post_id).await