use crate::{
- extensions::{context::lemmy_context, signatures::PublicKey},
- fetcher::community::fetch_community_mods,
- generate_moderators_url,
- objects::{create_tombstone, FromApub, ImageObject, Source, ToApub},
- ActorType,
+ check_apub_id_valid,
+ local_site_data_cached,
+ objects::instance::fetch_instance_actor_for_object,
+ protocol::{
+ objects::{group::Group, Endpoints, LanguageTag},
+ ImageObject,
+ Source,
+ },
};
-use activitystreams::{
- actor::{kind::GroupType, Endpoints},
- base::AnyBase,
- object::{kind::ImageType, Tombstone},
- primitives::OneOrMany,
- unparsed::Unparsed,
+use activitypub_federation::{
+ config::Data,
+ kinds::actor::GroupType,
+ traits::{Actor, Object},
};
-use chrono::{DateTime, FixedOffset};
-use lemmy_api_common::blocking;
-use lemmy_apub_lib::{
- values::{MediaTypeHtml, MediaTypeMarkdown},
- verify_domains_match,
+use chrono::NaiveDateTime;
+use lemmy_api_common::{
+ context::LemmyContext,
+ utils::{generate_featured_url, generate_moderators_url, generate_outbox_url},
};
-use lemmy_db_queries::{ApubObject, DbPool};
use lemmy_db_schema::{
- naive_now,
- source::community::{Community, CommunityForm},
+ source::{
+ actor_language::CommunityLanguage,
+ community::{Community, CommunityUpdateForm},
+ },
+ traits::{ApubActor, Crud},
};
+use lemmy_db_views_actor::structs::CommunityFollowerView;
use lemmy_utils::{
- utils::{check_slurs, check_slurs_opt, convert_datetime, markdown_to_html},
- LemmyError,
+ error::LemmyError,
+ utils::{markdown::markdown_to_html, time::convert_datetime},
};
-use lemmy_websocket::LemmyContext;
-use serde::{Deserialize, Serialize};
-use serde_with::skip_serializing_none;
+use std::ops::Deref;
+use tracing::debug;
use url::Url;
-#[skip_serializing_none]
-#[derive(Clone, Debug, Deserialize, Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct Group {
- #[serde(rename = "@context")]
- context: OneOrMany<AnyBase>,
- #[serde(rename = "type")]
- kind: GroupType,
- id: Url,
- /// username, set at account creation and can never be changed
- preferred_username: String,
- /// title (can be changed at any time)
- name: String,
- content: Option<String>,
- media_type: Option<MediaTypeHtml>,
- source: Option<Source>,
- icon: Option<ImageObject>,
- /// banner
- image: Option<ImageObject>,
- // lemmy extension
- sensitive: Option<bool>,
- // lemmy extension
- pub(crate) moderators: Option<Url>,
- inbox: Url,
- pub(crate) outbox: Url,
- followers: Url,
- endpoints: Endpoints<Url>,
- public_key: PublicKey,
- published: DateTime<FixedOffset>,
- updated: Option<DateTime<FixedOffset>>,
- #[serde(flatten)]
- unparsed: Unparsed,
-}
+#[derive(Clone, Debug)]
+pub struct ApubCommunity(Community);
-impl Group {
- pub(crate) fn id(&self, expected_domain: &Url) -> Result<&Url, LemmyError> {
- verify_domains_match(&self.id, expected_domain)?;
- Ok(&self.id)
+impl Deref for ApubCommunity {
+ type Target = Community;
+ fn deref(&self) -> &Self::Target {
+ &self.0
}
- pub(crate) async fn from_apub_to_form(
- group: &Group,
- expected_domain: &Url,
- ) -> Result<CommunityForm, LemmyError> {
- let actor_id = Some(group.id(expected_domain)?.clone().into());
- let name = group.preferred_username.clone();
- let title = group.name.clone();
- let description = group.source.clone().map(|s| s.content);
- let shared_inbox = group.endpoints.shared_inbox.clone().map(|s| s.into());
-
- check_slurs(&name)?;
- check_slurs(&title)?;
- check_slurs_opt(&description)?;
-
- Ok(CommunityForm {
- name,
- title,
- description,
- removed: None,
- published: Some(group.published.naive_local()),
- updated: group.updated.map(|u| u.naive_local()),
- deleted: None,
- nsfw: Some(group.sensitive.unwrap_or(false)),
- actor_id,
- local: Some(false),
- private_key: None,
- public_key: Some(group.public_key.public_key_pem.clone()),
- last_refreshed_at: Some(naive_now()),
- icon: Some(group.icon.clone().map(|i| i.url.into())),
- banner: Some(group.image.clone().map(|i| i.url.into())),
- followers_url: Some(group.followers.clone().into()),
- inbox_url: Some(group.inbox.clone().into()),
- shared_inbox_url: Some(shared_inbox),
- })
+}
+
+impl From<Community> for ApubCommunity {
+ fn from(c: Community) -> Self {
+ ApubCommunity(c)
}
}
-#[async_trait::async_trait(?Send)]
-impl ToApub for Community {
- type ApubType = Group;
-
- async fn to_apub(&self, _pool: &DbPool) -> Result<Group, LemmyError> {
- let source = self.description.clone().map(|bio| Source {
- content: bio,
- media_type: MediaTypeMarkdown::Markdown,
- });
- let icon = self.icon.clone().map(|url| ImageObject {
- kind: ImageType::Image,
- url: url.into(),
- });
- let image = self.banner.clone().map(|url| ImageObject {
- kind: ImageType::Image,
- url: url.into(),
- });
+#[async_trait::async_trait]
+impl Object for ApubCommunity {
+ type DataType = LemmyContext;
+ type Kind = Group;
+ type Error = LemmyError;
+
+ fn last_refreshed_at(&self) -> Option<NaiveDateTime> {
+ Some(self.last_refreshed_at)
+ }
+
+ #[tracing::instrument(skip_all)]
+ async fn read_from_id(
+ object_id: Url,
+ context: &Data<Self::DataType>,
+ ) -> Result<Option<Self>, LemmyError> {
+ Ok(
+ Community::read_from_apub_id(&mut context.pool(), &object_id.into())
+ .await?
+ .map(Into::into),
+ )
+ }
+
+ #[tracing::instrument(skip_all)]
+ async fn delete(self, context: &Data<Self::DataType>) -> Result<(), LemmyError> {
+ let form = CommunityUpdateForm::builder().deleted(Some(true)).build();
+ Community::update(&mut context.pool(), self.id, &form).await?;
+ Ok(())
+ }
+
+ #[tracing::instrument(skip_all)]
+ async fn into_json(self, data: &Data<Self::DataType>) -> Result<Group, LemmyError> {
+ let community_id = self.id;
+ let langs = CommunityLanguage::read(&mut data.pool(), community_id).await?;
+ let language = LanguageTag::new_multiple(langs, &mut data.pool()).await?;
let group = Group {
- context: lemmy_context(),
kind: GroupType::Group,
- id: self.actor_id(),
+ id: self.id().into(),
preferred_username: self.name.clone(),
- name: self.title.clone(),
- content: self.description.as_ref().map(|b| markdown_to_html(b)),
- media_type: self.description.as_ref().map(|_| MediaTypeHtml::Html),
- source,
- icon,
- image,
+ name: Some(self.title.clone()),
+ summary: self.description.as_ref().map(|b| markdown_to_html(b)),
+ source: self.description.clone().map(Source::new),
+ icon: self.icon.clone().map(ImageObject::new),
+ image: self.banner.clone().map(ImageObject::new),
sensitive: Some(self.nsfw),
- moderators: Some(generate_moderators_url(&self.actor_id)?.into()),
+ featured: Some(generate_featured_url(&self.actor_id)?.into()),
inbox: self.inbox_url.clone().into(),
- outbox: self.get_outbox_url()?,
+ outbox: generate_outbox_url(&self.actor_id)?.into(),
followers: self.followers_url.clone().into(),
- endpoints: Endpoints {
- shared_inbox: self.shared_inbox_url.clone().map(|s| s.into()),
- ..Default::default()
- },
- public_key: self.get_public_key()?,
- published: convert_datetime(self.published),
+ endpoints: self.shared_inbox_url.clone().map(|s| Endpoints {
+ shared_inbox: s.into(),
+ }),
+ public_key: self.public_key(),
+ language,
+ published: Some(convert_datetime(self.published)),
updated: self.updated.map(convert_datetime),
- unparsed: Default::default(),
+ posting_restricted_to_mods: Some(self.posting_restricted_to_mods),
+ attributed_to: Some(generate_moderators_url(&self.actor_id)?.into()),
};
Ok(group)
}
- fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
- create_tombstone(
- self.deleted,
- self.actor_id.to_owned().into(),
- self.updated,
- GroupType::Group,
- )
+ #[tracing::instrument(skip_all)]
+ async fn verify(
+ group: &Group,
+ expected_domain: &Url,
+ context: &Data<Self::DataType>,
+ ) -> Result<(), LemmyError> {
+ group.verify(expected_domain, context).await
+ }
+
+ /// Converts a `Group` to `Community`, inserts it into the database and updates moderators.
+ #[tracing::instrument(skip_all)]
+ async fn from_json(
+ group: Group,
+ context: &Data<Self::DataType>,
+ ) -> Result<ApubCommunity, LemmyError> {
+ let instance_id = fetch_instance_actor_for_object(&group.id, context).await?;
+
+ let form = Group::into_insert_form(group.clone(), instance_id);
+ let languages =
+ LanguageTag::to_language_id_multiple(group.language, &mut context.pool()).await?;
+
+ let community = Community::create(&mut context.pool(), &form).await?;
+ CommunityLanguage::update(&mut context.pool(), languages, community.id).await?;
+
+ let community: ApubCommunity = community.into();
+
+ // Fetching mods and outbox is not necessary for Lemmy to work, so ignore errors. Besides,
+ // we need to ignore these errors so that tests can work entirely offline.
+ let fetch_outbox = group.outbox.dereference(&community, context);
+
+ if let Some(moderators) = group.attributed_to {
+ let fetch_moderators = moderators.dereference(&community, context);
+ // Fetch mods and outbox in parallel
+ let res = tokio::join!(fetch_outbox, fetch_moderators);
+ res.0.map_err(|e| debug!("{}", e)).ok();
+ res.1.map_err(|e| debug!("{}", e)).ok();
+ } else {
+ fetch_outbox.await.map_err(|e| debug!("{}", e)).ok();
+ }
+
+ Ok(community)
}
}
-#[async_trait::async_trait(?Send)]
-impl FromApub for Community {
- type ApubType = Group;
+impl Actor for ApubCommunity {
+ fn id(&self) -> Url {
+ self.actor_id.inner().clone()
+ }
- /// Converts a `Group` to `Community`, inserts it into the database and updates moderators.
- async fn from_apub(
- group: &Group,
+ fn public_key_pem(&self) -> &str {
+ &self.public_key
+ }
+
+ fn private_key_pem(&self) -> Option<String> {
+ self.private_key.clone()
+ }
+
+ fn inbox(&self) -> Url {
+ self.inbox_url.clone().into()
+ }
+
+ fn shared_inbox(&self) -> Option<Url> {
+ self.shared_inbox_url.clone().map(Into::into)
+ }
+}
+
+impl ApubCommunity {
+ /// For a given community, returns the inboxes of all followers.
+ #[tracing::instrument(skip_all)]
+ pub(crate) async fn get_follower_inboxes(
+ &self,
context: &LemmyContext,
- expected_domain: &Url,
- request_counter: &mut i32,
- ) -> Result<Community, LemmyError> {
- fetch_community_mods(context, group, request_counter).await?;
- let form = Group::from_apub_to_form(group, expected_domain).await?;
+ ) -> Result<Vec<Url>, LemmyError> {
+ let id = self.id;
- let community = blocking(context.pool(), move |conn| Community::upsert(conn, &form)).await??;
- Ok(community)
+ let local_site_data = local_site_data_cached(&mut context.pool()).await?;
+ let follows =
+ CommunityFollowerView::get_community_follower_inboxes(&mut context.pool(), id).await?;
+ let inboxes: Vec<Url> = follows
+ .into_iter()
+ .map(Into::into)
+ .filter(|inbox: &Url| inbox.host_str() != Some(&context.settings().hostname))
+ // Don't send to blocked instances
+ .filter(|inbox| check_apub_id_valid(inbox, &local_site_data).is_ok())
+ .collect();
+
+ Ok(inboxes)
+ }
+}
+
+#[cfg(test)]
+pub(crate) mod tests {
+ #![allow(clippy::unwrap_used)]
+ #![allow(clippy::indexing_slicing)]
+
+ use super::*;
+ use crate::{
+ objects::{instance::tests::parse_lemmy_instance, tests::init_context},
+ protocol::tests::file_to_json_object,
+ };
+ use activitypub_federation::fetch::collection_id::CollectionId;
+ use lemmy_db_schema::{source::site::Site, traits::Crud};
+ use serial_test::serial;
+
+ pub(crate) async fn parse_lemmy_community(context: &Data<LemmyContext>) -> ApubCommunity {
+ // use separate counter so this doesnt affect tests
+ let context2 = context.reset_request_count();
+ let mut json: Group = file_to_json_object("assets/lemmy/objects/group.json").unwrap();
+ // change these links so they dont fetch over the network
+ json.attributed_to = None;
+ json.outbox =
+ CollectionId::parse("https://enterprise.lemmy.ml/c/tenforward/not_outbox").unwrap();
+
+ let url = Url::parse("https://enterprise.lemmy.ml/c/tenforward").unwrap();
+ ApubCommunity::verify(&json, &url, &context2).await.unwrap();
+ let community = ApubCommunity::from_json(json, &context2).await.unwrap();
+ // this makes one requests to the (intentionally broken) outbox collection
+ assert_eq!(context2.request_count(), 1);
+ community
+ }
+
+ #[tokio::test]
+ #[serial]
+ async fn test_parse_lemmy_community() {
+ let context = init_context().await;
+ let site = parse_lemmy_instance(&context).await;
+ let community = parse_lemmy_community(&context).await;
+
+ assert_eq!(community.title, "Ten Forward");
+ assert!(!community.local);
+ assert_eq!(community.description.as_ref().unwrap().len(), 132);
+
+ Community::delete(&mut context.pool(), community.id)
+ .await
+ .unwrap();
+ Site::delete(&mut context.pool(), site.id).await.unwrap();
}
}
projects / lemmy.git / blobdiff