mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-11-19 10:54:01 +00:00
261 lines
7.5 KiB
Rust
261 lines
7.5 KiB
Rust
use crate::{
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check_is_apub_id_valid,
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collections::{community_moderators::ApubCommunityModerators, CommunityContext},
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generate_moderators_url,
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generate_outbox_url,
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protocol::{
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objects::{group::Group, tombstone::Tombstone, Endpoints},
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ImageObject,
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Source,
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},
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};
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use activitystreams_kinds::actor::GroupType;
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use chrono::NaiveDateTime;
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use itertools::Itertools;
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use lemmy_api_common::blocking;
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use lemmy_apub_lib::{
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object_id::ObjectId,
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traits::{ActorType, ApubObject},
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values::MediaTypeMarkdown,
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};
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use lemmy_db_schema::source::community::Community;
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use lemmy_db_views_actor::community_follower_view::CommunityFollowerView;
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use lemmy_utils::{
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utils::{convert_datetime, markdown_to_html},
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LemmyError,
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};
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use lemmy_websocket::LemmyContext;
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use std::ops::Deref;
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use tracing::debug;
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use url::Url;
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#[derive(Clone, Debug)]
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pub struct ApubCommunity(Community);
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impl Deref for ApubCommunity {
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type Target = Community;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl From<Community> for ApubCommunity {
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fn from(c: Community) -> Self {
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ApubCommunity { 0: c }
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}
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}
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#[async_trait::async_trait(?Send)]
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impl ApubObject for ApubCommunity {
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type DataType = LemmyContext;
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type ApubType = Group;
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type TombstoneType = Tombstone;
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fn last_refreshed_at(&self) -> Option<NaiveDateTime> {
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Some(self.last_refreshed_at)
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}
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#[tracing::instrument(skip_all)]
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async fn read_from_apub_id(
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object_id: Url,
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context: &LemmyContext,
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) -> Result<Option<Self>, LemmyError> {
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Ok(
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blocking(context.pool(), move |conn| {
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Community::read_from_apub_id(conn, object_id)
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})
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.await??
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.map(Into::into),
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)
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}
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#[tracing::instrument(skip_all)]
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async fn delete(self, context: &LemmyContext) -> Result<(), LemmyError> {
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blocking(context.pool(), move |conn| {
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Community::update_deleted(conn, self.id, true)
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})
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.await??;
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Ok(())
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}
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#[tracing::instrument(skip_all)]
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async fn into_apub(self, _context: &LemmyContext) -> Result<Group, LemmyError> {
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let source = self.description.clone().map(|bio| Source {
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content: bio,
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media_type: MediaTypeMarkdown::Markdown,
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});
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let icon = self.icon.clone().map(ImageObject::new);
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let image = self.banner.clone().map(ImageObject::new);
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let group = Group {
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kind: GroupType::Group,
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id: ObjectId::new(self.actor_id()),
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preferred_username: self.name.clone(),
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name: self.title.clone(),
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summary: self.description.as_ref().map(|b| markdown_to_html(b)),
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source,
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icon,
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image,
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sensitive: Some(self.nsfw),
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moderators: Some(ObjectId::<ApubCommunityModerators>::new(
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generate_moderators_url(&self.actor_id)?,
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)),
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inbox: self.inbox_url.clone().into(),
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outbox: ObjectId::new(generate_outbox_url(&self.actor_id)?),
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followers: self.followers_url.clone().into(),
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endpoints: Endpoints {
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shared_inbox: self.shared_inbox_url.clone().map(|s| s.into()),
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},
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public_key: self.get_public_key()?,
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published: Some(convert_datetime(self.published)),
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updated: self.updated.map(convert_datetime),
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unparsed: Default::default(),
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};
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Ok(group)
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}
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fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
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Ok(Tombstone::new(self.actor_id()))
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}
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#[tracing::instrument(skip_all)]
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async fn verify(
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group: &Group,
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expected_domain: &Url,
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context: &LemmyContext,
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_request_counter: &mut i32,
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) -> Result<(), LemmyError> {
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group.verify(expected_domain, context).await
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}
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/// Converts a `Group` to `Community`, inserts it into the database and updates moderators.
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#[tracing::instrument(skip_all)]
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async fn from_apub(
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group: Group,
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context: &LemmyContext,
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request_counter: &mut i32,
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) -> Result<ApubCommunity, LemmyError> {
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let form = Group::into_form(group.clone());
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// Fetching mods and outbox is not necessary for Lemmy to work, so ignore errors. Besides,
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// we need to ignore these errors so that tests can work entirely offline.
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let community: ApubCommunity =
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blocking(context.pool(), move |conn| Community::upsert(conn, &form))
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.await??
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.into();
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let outbox_data = CommunityContext(community.clone(), context.clone());
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group
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.outbox
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.dereference(&outbox_data, context.client(), request_counter)
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.await
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.map_err(|e| debug!("{}", e))
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.ok();
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if let Some(moderators) = &group.moderators {
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moderators
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.dereference(&outbox_data, context.client(), request_counter)
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.await
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.map_err(|e| debug!("{}", e))
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.ok();
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}
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Ok(community)
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}
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}
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impl ActorType for ApubCommunity {
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fn actor_id(&self) -> Url {
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self.actor_id.to_owned().into()
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}
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fn public_key(&self) -> String {
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self.public_key.to_owned()
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}
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fn private_key(&self) -> Option<String> {
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self.private_key.to_owned()
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}
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fn inbox_url(&self) -> Url {
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self.inbox_url.clone().into()
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}
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fn shared_inbox_url(&self) -> Option<Url> {
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self.shared_inbox_url.clone().map(|s| s.into())
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}
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}
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impl ApubCommunity {
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/// For a given community, returns the inboxes of all followers.
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#[tracing::instrument(skip_all)]
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pub(crate) async fn get_follower_inboxes(
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&self,
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context: &LemmyContext,
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) -> Result<Vec<Url>, LemmyError> {
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let id = self.id;
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let follows = blocking(context.pool(), move |conn| {
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CommunityFollowerView::for_community(conn, id)
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})
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.await??;
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let inboxes: Vec<Url> = follows
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.into_iter()
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.filter(|f| !f.follower.local)
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.map(|f| {
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f.follower
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.shared_inbox_url
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.unwrap_or(f.follower.inbox_url)
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.into()
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})
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.unique()
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.filter(|inbox: &Url| inbox.host_str() != Some(&context.settings().hostname))
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// Don't send to blocked instances
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.filter(|inbox| check_is_apub_id_valid(inbox, false, &context.settings()).is_ok())
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.collect();
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Ok(inboxes)
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}
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}
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#[cfg(test)]
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pub(crate) mod tests {
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use super::*;
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use crate::objects::tests::{file_to_json_object, init_context};
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use lemmy_apub_lib::activity_queue::create_activity_queue;
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use lemmy_db_schema::traits::Crud;
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use serial_test::serial;
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pub(crate) async fn parse_lemmy_community(context: &LemmyContext) -> ApubCommunity {
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let mut json: Group = file_to_json_object("assets/lemmy/objects/group.json");
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// change these links so they dont fetch over the network
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json.moderators = None;
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json.outbox =
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ObjectId::new(Url::parse("https://enterprise.lemmy.ml/c/tenforward/not_outbox").unwrap());
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let url = Url::parse("https://enterprise.lemmy.ml/c/tenforward").unwrap();
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let mut request_counter = 0;
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ApubCommunity::verify(&json, &url, context, &mut request_counter)
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.await
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.unwrap();
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let community = ApubCommunity::from_apub(json, context, &mut request_counter)
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.await
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.unwrap();
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// this makes two requests to the (intentionally) broken outbox/moderators collections
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assert_eq!(request_counter, 1);
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community
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}
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#[actix_rt::test]
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#[serial]
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async fn test_parse_lemmy_community() {
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let client = reqwest::Client::new().into();
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let manager = create_activity_queue(client);
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let context = init_context(manager.queue_handle().clone());
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let community = parse_lemmy_community(&context).await;
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assert_eq!(community.title, "Ten Forward");
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assert!(!community.local);
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assert_eq!(community.description.as_ref().unwrap().len(), 132);
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Community::delete(&*context.pool().get().unwrap(), community.id).unwrap();
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}
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}
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