2 activities::verify_person_in_community,
3 check_is_apub_id_valid,
5 objects::{page::Page, tombstone::Tombstone},
10 use activitystreams::{
11 object::kind::{ImageType, PageType},
14 use chrono::NaiveDateTime;
15 use lemmy_api_common::blocking;
19 values::{MediaTypeHtml, MediaTypeMarkdown},
20 verify::verify_domains_match,
22 use lemmy_db_schema::{
27 post::{Post, PostForm},
32 request::fetch_site_data,
33 utils::{convert_datetime, markdown_to_html, remove_slurs},
36 use lemmy_websocket::LemmyContext;
40 #[derive(Clone, Debug)]
41 pub struct ApubPost(Post);
43 impl Deref for ApubPost {
45 fn deref(&self) -> &Self::Target {
50 impl From<Post> for ApubPost {
51 fn from(p: Post) -> Self {
56 #[async_trait::async_trait(?Send)]
57 impl ApubObject for ApubPost {
58 type DataType = LemmyContext;
60 type TombstoneType = Tombstone;
62 fn last_refreshed_at(&self) -> Option<NaiveDateTime> {
66 async fn read_from_apub_id(
68 context: &LemmyContext,
69 ) -> Result<Option<Self>, LemmyError> {
71 blocking(context.pool(), move |conn| {
72 Post::read_from_apub_id(conn, object_id)
79 async fn delete(self, context: &LemmyContext) -> Result<(), LemmyError> {
81 blocking(context.pool(), move |conn| {
82 Post::update_deleted(conn, self.id, true)
89 // Turn a Lemmy post into an ActivityPub page that can be sent out over the network.
90 async fn to_apub(&self, context: &LemmyContext) -> Result<Page, LemmyError> {
91 let creator_id = self.creator_id;
92 let creator = blocking(context.pool(), move |conn| Person::read(conn, creator_id)).await??;
93 let community_id = self.community_id;
94 let community = blocking(context.pool(), move |conn| {
95 Community::read(conn, community_id)
99 let source = self.body.clone().map(|body| Source {
101 media_type: MediaTypeMarkdown::Markdown,
103 let image = self.thumbnail_url.clone().map(|thumb| ImageObject {
104 kind: ImageType::Image,
109 r#type: PageType::Page,
110 id: ObjectId::new(self.ap_id.clone()),
111 attributed_to: ObjectId::new(creator.actor_id),
112 to: vec![community.actor_id.into(), public()],
113 name: self.name.clone(),
114 content: self.body.as_ref().map(|b| markdown_to_html(b)),
115 media_type: Some(MediaTypeHtml::Html),
117 url: self.url.clone().map(|u| u.into()),
119 comments_enabled: Some(!self.locked),
120 sensitive: Some(self.nsfw),
121 stickied: Some(self.stickied),
122 published: Some(convert_datetime(self.published)),
123 updated: self.updated.map(convert_datetime),
124 unparsed: Default::default(),
129 fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
132 self.updated.unwrap_or(self.published),
138 context: &LemmyContext,
139 expected_domain: &Url,
140 request_counter: &mut i32,
141 ) -> Result<ApubPost, LemmyError> {
142 // We can't verify the domain in case of mod action, because the mod may be on a different
143 // instance from the post author.
144 if !page.is_mod_action(context).await? {
145 verify_domains_match(page.id.inner(), expected_domain)?;
147 let ap_id = Some(page.id.clone().into());
150 .dereference(context, request_counter)
152 let community = page.extract_community(context, request_counter).await?;
153 check_is_apub_id_valid(page.id.inner(), community.local, &context.settings())?;
154 verify_person_in_community(&page.attributed_to, &community, context, request_counter).await?;
156 let thumbnail_url: Option<Url> = page.image.clone().map(|i| i.url);
157 let (metadata_res, pictrs_thumbnail) = if let Some(url) = &page.url {
158 fetch_site_data(context.client(), &context.settings(), Some(url)).await
160 (None, thumbnail_url)
162 let (embed_title, embed_description, embed_html) = metadata_res
163 .map(|u| (u.title, u.description, u.html))
164 .unwrap_or((None, None, None));
166 let body_slurs_removed = page
169 .map(|s| remove_slurs(&s.content, &context.settings().slur_regex()));
170 let form = PostForm {
171 name: page.name.clone(),
172 url: page.url.clone().map(|u| u.into()),
173 body: body_slurs_removed,
174 creator_id: creator.id,
175 community_id: community.id,
177 locked: page.comments_enabled.map(|e| !e),
178 published: page.published.map(|u| u.naive_local()),
179 updated: page.updated.map(|u| u.naive_local()),
181 nsfw: page.sensitive,
182 stickied: page.stickied,
186 thumbnail_url: pictrs_thumbnail.map(|u| u.into()),
190 let post = blocking(context.pool(), move |conn| Post::upsert(conn, &form)).await??;
198 use crate::objects::{
199 community::tests::parse_lemmy_community,
200 person::tests::parse_lemmy_person,
202 tests::{file_to_json_object, init_context},
204 use serial_test::serial;
208 async fn test_parse_lemmy_post() {
209 let context = init_context();
210 let community = parse_lemmy_community(&context).await;
211 let person = parse_lemmy_person(&context).await;
213 let json = file_to_json_object("assets/lemmy/objects/page.json");
214 let url = Url::parse("https://enterprise.lemmy.ml/post/55143").unwrap();
215 let mut request_counter = 0;
216 let post = ApubPost::from_apub(&json, &context, &url, &mut request_counter)
220 assert_eq!(post.ap_id, url.into());
221 assert_eq!(post.name, "Post title");
222 assert!(post.body.is_some());
223 assert_eq!(post.body.as_ref().unwrap().len(), 45);
224 assert!(!post.locked);
225 assert!(post.stickied);
226 assert_eq!(request_counter, 0);
228 Post::delete(&*context.pool().get().unwrap(), post.id).unwrap();
229 Person::delete(&*context.pool().get().unwrap(), person.id).unwrap();
230 Community::delete(&*context.pool().get().unwrap(), community.id).unwrap();