2 check_apub_id_valid_with_strictness,
3 local_site_data_cached,
4 objects::read_from_string_or_source_opt,
6 objects::{instance::Instance, LanguageTag},
11 use activitypub_federation::{
13 fetch::object_id::ObjectId,
14 kinds::actor::ApplicationType,
15 protocol::{values::MediaTypeHtml, verification::verify_domains_match},
16 traits::{Actor, Object},
18 use chrono::NaiveDateTime;
19 use lemmy_api_common::{
20 context::LemmyContext,
21 utils::{local_site_opt_to_slur_regex, sanitize_html_opt},
23 use lemmy_db_schema::{
26 actor_language::SiteLanguage,
27 instance::Instance as DbInstance,
28 site::{Site, SiteInsertForm},
31 utils::{naive_now, DbPool},
36 markdown::markdown_to_html,
37 slurs::{check_slurs, check_slurs_opt},
38 time::convert_datetime,
45 #[derive(Clone, Debug)]
46 pub struct ApubSite(Site);
48 impl Deref for ApubSite {
50 fn deref(&self) -> &Self::Target {
55 impl From<Site> for ApubSite {
56 fn from(s: Site) -> Self {
61 #[async_trait::async_trait]
62 impl Object for ApubSite {
63 type DataType = LemmyContext;
65 type Error = LemmyError;
67 fn last_refreshed_at(&self) -> Option<NaiveDateTime> {
68 Some(self.last_refreshed_at)
71 #[tracing::instrument(skip_all)]
72 async fn read_from_id(
74 data: &Data<Self::DataType>,
75 ) -> Result<Option<Self>, LemmyError> {
77 Site::read_from_apub_id(&mut data.pool(), &object_id.into())
83 async fn delete(self, _data: &Data<Self::DataType>) -> Result<(), LemmyError> {
87 #[tracing::instrument(skip_all)]
88 async fn into_json(self, data: &Data<Self::DataType>) -> Result<Self::Kind, LemmyError> {
89 let site_id = self.id;
90 let langs = SiteLanguage::read(&mut data.pool(), site_id).await?;
91 let language = LanguageTag::new_multiple(langs, &mut data.pool()).await?;
93 let instance = Instance {
94 kind: ApplicationType::Application,
96 name: self.name.clone(),
97 content: self.sidebar.as_ref().map(|d| markdown_to_html(d)),
98 source: self.sidebar.clone().map(Source::new),
99 summary: self.description.clone(),
100 media_type: self.sidebar.as_ref().map(|_| MediaTypeHtml::Html),
101 icon: self.icon.clone().map(ImageObject::new),
102 image: self.banner.clone().map(ImageObject::new),
103 inbox: self.inbox_url.clone().into(),
104 outbox: Url::parse(&format!("{}/site_outbox", self.actor_id))?,
105 public_key: self.public_key(),
107 published: convert_datetime(self.published),
108 updated: self.updated.map(convert_datetime),
113 #[tracing::instrument(skip_all)]
116 expected_domain: &Url,
117 data: &Data<Self::DataType>,
118 ) -> Result<(), LemmyError> {
119 check_apub_id_valid_with_strictness(apub.id.inner(), true, data).await?;
120 verify_domains_match(expected_domain, apub.id.inner())?;
122 let local_site_data = local_site_data_cached(&mut data.pool()).await?;
123 let slur_regex = &local_site_opt_to_slur_regex(&local_site_data.local_site);
124 check_slurs(&apub.name, slur_regex)?;
125 check_slurs_opt(&apub.summary, slur_regex)?;
130 #[tracing::instrument(skip_all)]
131 async fn from_json(apub: Self::Kind, data: &Data<Self::DataType>) -> Result<Self, LemmyError> {
132 let domain = apub.id.inner().domain().expect("group id has domain");
133 let instance = DbInstance::read_or_create(&mut data.pool(), domain.to_string()).await?;
135 let sidebar = read_from_string_or_source_opt(&apub.content, &None, &apub.source);
136 let sidebar = sanitize_html_opt(&sidebar);
137 let description = sanitize_html_opt(&apub.summary);
139 let site_form = SiteInsertForm {
140 name: apub.name.clone(),
142 updated: apub.updated.map(|u| u.clone().naive_local()),
143 icon: apub.icon.clone().map(|i| i.url.into()),
144 banner: apub.image.clone().map(|i| i.url.into()),
146 actor_id: Some(apub.id.clone().into()),
147 last_refreshed_at: Some(naive_now()),
148 inbox_url: Some(apub.inbox.clone().into()),
149 public_key: Some(apub.public_key.public_key_pem.clone()),
151 instance_id: instance.id,
153 let languages = LanguageTag::to_language_id_multiple(apub.language, &mut data.pool()).await?;
155 let site = Site::create(&mut data.pool(), &site_form).await?;
156 SiteLanguage::update(&mut data.pool(), languages, &site).await?;
161 impl Actor for ApubSite {
162 fn id(&self) -> Url {
163 self.actor_id.inner().clone()
166 fn public_key_pem(&self) -> &str {
170 fn private_key_pem(&self) -> Option<String> {
171 self.private_key.clone()
174 fn inbox(&self) -> Url {
175 self.inbox_url.clone().into()
179 /// Try to fetch the instance actor (to make things like instance rules available).
180 pub(in crate::objects) async fn fetch_instance_actor_for_object<T: Into<Url> + Clone>(
182 context: &Data<LemmyContext>,
183 ) -> Result<InstanceId, LemmyError> {
184 let object_id: Url = object_id.clone().into();
185 let instance_id = Site::instance_actor_id_from_url(object_id);
186 let site = ObjectId::<ApubSite>::from(instance_id.clone())
187 .dereference(context)
190 Ok(s) => Ok(s.instance_id),
192 // Failed to fetch instance actor, its probably not a lemmy instance
193 debug!("Failed to dereference site for {}: {}", &instance_id, e);
194 let domain = instance_id.domain().expect("has domain");
196 DbInstance::read_or_create(&mut context.pool(), domain.to_string())
204 pub(crate) async fn remote_instance_inboxes(pool: &mut DbPool<'_>) -> Result<Vec<Url>, LemmyError> {
206 Site::read_remote_sites(pool)
209 .map(|s| ApubSite::from(s).shared_inbox_or_inbox())
215 pub(crate) mod tests {
216 #![allow(clippy::unwrap_used)]
217 #![allow(clippy::indexing_slicing)]
220 use crate::{objects::tests::init_context, protocol::tests::file_to_json_object};
221 use lemmy_db_schema::traits::Crud;
222 use serial_test::serial;
224 pub(crate) async fn parse_lemmy_instance(context: &Data<LemmyContext>) -> ApubSite {
225 let json: Instance = file_to_json_object("assets/lemmy/objects/instance.json").unwrap();
226 let id = Url::parse("https://enterprise.lemmy.ml/").unwrap();
227 ApubSite::verify(&json, &id, context).await.unwrap();
228 let site = ApubSite::from_json(json, context).await.unwrap();
229 assert_eq!(context.request_count(), 0);
235 async fn test_parse_lemmy_instance() {
236 let context = init_context().await;
237 let site = parse_lemmy_instance(&context).await;
239 assert_eq!(site.name, "Enterprise");
240 assert_eq!(site.description.as_ref().unwrap().len(), 15);
242 Site::delete(&mut context.pool(), site.id).await.unwrap();