2 check_apub_id_valid_with_strictness,
5 objects::read_from_string_or_source_opt,
7 objects::{instance::Instance, LanguageTag},
13 use activitypub_federation::{
14 core::object_id::ObjectId,
15 deser::values::MediaTypeHtml,
16 traits::{Actor, ApubObject},
17 utils::verify_domains_match,
19 use activitystreams_kinds::actor::ApplicationType;
20 use chrono::NaiveDateTime;
21 use lemmy_api_common::{context::LemmyContext, utils::local_site_opt_to_slur_regex};
22 use lemmy_db_schema::{
25 actor_language::SiteLanguage,
26 instance::Instance as DbInstance,
27 site::{Site, SiteInsertForm},
30 utils::{naive_now, DbPool},
35 markdown::markdown_to_html,
36 slurs::{check_slurs, check_slurs_opt},
37 time::convert_datetime,
44 #[derive(Clone, Debug)]
45 pub struct ApubSite(Site);
47 impl Deref for ApubSite {
49 fn deref(&self) -> &Self::Target {
54 impl From<Site> for ApubSite {
55 fn from(s: Site) -> Self {
60 #[async_trait::async_trait(?Send)]
61 impl ApubObject for ApubSite {
62 type DataType = LemmyContext;
63 type ApubType = Instance;
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_apub_id(
74 data: &Self::DataType,
75 ) -> Result<Option<Self>, LemmyError> {
77 Site::read_from_apub_id(data.pool(), object_id)
83 async fn delete(self, _data: &Self::DataType) -> Result<(), LemmyError> {
87 #[tracing::instrument(skip_all)]
88 async fn into_apub(self, data: &Self::DataType) -> Result<Self::ApubType, LemmyError> {
89 let site_id = self.id;
90 let langs = SiteLanguage::read(data.pool(), site_id).await?;
91 let language = LanguageTag::new_multiple(langs, data.pool()).await?;
93 let instance = Instance {
94 kind: ApplicationType::Application,
95 id: ObjectId::new(self.actor_id()),
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.get_public_key(),
107 published: convert_datetime(self.published),
108 updated: self.updated.map(convert_datetime),
113 #[tracing::instrument(skip_all)]
115 apub: &Self::ApubType,
116 expected_domain: &Url,
117 data: &Self::DataType,
118 _request_counter: &mut i32,
119 ) -> Result<(), LemmyError> {
120 let local_site_data = fetch_local_site_data(data.pool()).await?;
122 check_apub_id_valid_with_strictness(apub.id.inner(), true, &local_site_data, data.settings())?;
123 verify_domains_match(expected_domain, apub.id.inner())?;
125 let slur_regex = &local_site_opt_to_slur_regex(&local_site_data.local_site);
127 check_slurs(&apub.name, slur_regex)?;
128 check_slurs_opt(&apub.summary, slur_regex)?;
132 #[tracing::instrument(skip_all)]
134 apub: Self::ApubType,
135 data: &Self::DataType,
136 _request_counter: &mut i32,
137 ) -> Result<Self, LemmyError> {
138 let domain = apub.id.inner().domain().expect("group id has domain");
139 let instance = DbInstance::read_or_create(data.pool(), domain.to_string()).await?;
141 let site_form = SiteInsertForm {
142 name: apub.name.clone(),
143 sidebar: read_from_string_or_source_opt(&apub.content, &None, &apub.source),
144 updated: apub.updated.map(|u| u.clone().naive_local()),
145 icon: apub.icon.clone().map(|i| i.url.into()),
146 banner: apub.image.clone().map(|i| i.url.into()),
147 description: apub.summary.clone(),
148 actor_id: Some(apub.id.clone().into()),
149 last_refreshed_at: Some(naive_now()),
150 inbox_url: Some(apub.inbox.clone().into()),
151 public_key: Some(apub.public_key.public_key_pem.clone()),
153 instance_id: instance.id,
155 let languages = LanguageTag::to_language_id_multiple(apub.language, data.pool()).await?;
157 let site = Site::create(data.pool(), &site_form).await?;
158 SiteLanguage::update(data.pool(), languages, &site).await?;
163 impl ActorType for ApubSite {
164 fn actor_id(&self) -> Url {
165 self.actor_id.clone().into()
167 fn private_key(&self) -> Option<String> {
168 self.private_key.clone()
172 impl Actor for ApubSite {
173 fn public_key(&self) -> &str {
177 fn inbox(&self) -> Url {
178 self.inbox_url.clone().into()
182 /// Try to fetch the instance actor (to make things like instance rules available).
183 pub(in crate::objects) async fn fetch_instance_actor_for_object<T: Into<Url> + Clone>(
185 context: &LemmyContext,
186 request_counter: &mut i32,
187 ) -> Result<InstanceId, LemmyError> {
188 let object_id: Url = object_id.clone().into();
189 let instance_id = Site::instance_actor_id_from_url(object_id);
190 let site = ObjectId::<ApubSite>::new(instance_id.clone())
191 .dereference(context, local_instance(context).await, request_counter)
194 Ok(s) => Ok(s.instance_id),
196 // Failed to fetch instance actor, its probably not a lemmy instance
197 debug!("Failed to dereference site for {}: {}", &instance_id, e);
198 let domain = instance_id.domain().expect("has domain");
200 DbInstance::read_or_create(context.pool(), domain.to_string())
208 pub(crate) async fn remote_instance_inboxes(pool: &DbPool) -> Result<Vec<Url>, LemmyError> {
210 Site::read_remote_sites(pool)
213 .map(|s| ApubSite::from(s).shared_inbox_or_inbox())
219 pub(crate) mod tests {
221 use crate::{objects::tests::init_context, protocol::tests::file_to_json_object};
222 use lemmy_db_schema::traits::Crud;
223 use serial_test::serial;
225 pub(crate) async fn parse_lemmy_instance(context: &LemmyContext) -> ApubSite {
226 let json: Instance = file_to_json_object("assets/lemmy/objects/instance.json").unwrap();
227 let id = Url::parse("https://enterprise.lemmy.ml/").unwrap();
228 let mut request_counter = 0;
229 ApubSite::verify(&json, &id, context, &mut request_counter)
232 let site = ApubSite::from_apub(json, context, &mut request_counter)
235 assert_eq!(request_counter, 0);
241 async fn test_parse_lemmy_instance() {
242 let context = init_context().await;
243 let site = parse_lemmy_instance(&context).await;
245 assert_eq!(site.name, "Enterprise");
246 assert_eq!(site.description.as_ref().unwrap().len(), 15);
248 Site::delete(context.pool(), site.id).await.unwrap();