lemmy/crates/apub/src/collections/community_moderators.rs

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use crate::{
collections::CommunityContext,
generate_moderators_url,
objects::person::ApubPerson,
protocol::collections::group_moderators::GroupModerators,
};
use activitystreams::{chrono::NaiveDateTime, collection::kind::OrderedCollectionType};
use lemmy_api_common::blocking;
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use lemmy_apub_lib::{object_id::ObjectId, traits::ApubObject, verify::verify_domains_match};
use lemmy_db_schema::{
source::community::{CommunityModerator, CommunityModeratorForm},
traits::Joinable,
};
use lemmy_db_views_actor::community_moderator_view::CommunityModeratorView;
use lemmy_utils::LemmyError;
use url::Url;
#[derive(Clone, Debug)]
pub(crate) struct ApubCommunityModerators(pub(crate) Vec<CommunityModeratorView>);
#[async_trait::async_trait(?Send)]
impl ApubObject for ApubCommunityModerators {
type DataType = CommunityContext;
type TombstoneType = ();
type ApubType = GroupModerators;
fn last_refreshed_at(&self) -> Option<NaiveDateTime> {
None
}
async fn read_from_apub_id(
_object_id: Url,
data: &Self::DataType,
) -> Result<Option<Self>, LemmyError> {
// Only read from database if its a local community, otherwise fetch over http
if data.0.local {
let cid = data.0.id;
let moderators = blocking(data.1.pool(), move |conn| {
CommunityModeratorView::for_community(conn, cid)
})
.await??;
Ok(Some(ApubCommunityModerators { 0: moderators }))
} else {
Ok(None)
}
}
async fn delete(self, _data: &Self::DataType) -> Result<(), LemmyError> {
unimplemented!()
}
async fn into_apub(self, data: &Self::DataType) -> Result<Self::ApubType, LemmyError> {
let ordered_items = self
.0
.into_iter()
.map(|m| ObjectId::<ApubPerson>::new(m.moderator.actor_id))
.collect();
Ok(GroupModerators {
r#type: OrderedCollectionType::OrderedCollection,
id: generate_moderators_url(&data.0.actor_id)?.into(),
ordered_items,
})
}
fn to_tombstone(&self) -> Result<Self::TombstoneType, LemmyError> {
unimplemented!()
}
async fn from_apub(
apub: Self::ApubType,
data: &Self::DataType,
expected_domain: &Url,
request_counter: &mut i32,
) -> Result<Self, LemmyError> {
verify_domains_match(expected_domain, &apub.id)?;
let community_id = data.0.id;
let current_moderators = blocking(data.1.pool(), move |conn| {
CommunityModeratorView::for_community(conn, community_id)
})
.await??;
// Remove old mods from database which arent in the moderators collection anymore
for mod_user in &current_moderators {
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let mod_id = ObjectId::new(mod_user.moderator.actor_id.clone());
if !apub.ordered_items.contains(&mod_id) {
let community_moderator_form = CommunityModeratorForm {
community_id: mod_user.community.id,
person_id: mod_user.moderator.id,
};
blocking(data.1.pool(), move |conn| {
CommunityModerator::leave(conn, &community_moderator_form)
})
.await??;
}
}
// Add new mods to database which have been added to moderators collection
for mod_id in apub.ordered_items {
let mod_id = ObjectId::new(mod_id);
let mod_user: ApubPerson = mod_id.dereference(&data.1, request_counter).await?;
if !current_moderators
.iter()
.map(|c| c.moderator.actor_id.clone())
.any(|x| x == mod_user.actor_id)
{
let community_moderator_form = CommunityModeratorForm {
community_id: data.0.id,
person_id: mod_user.id,
};
blocking(data.1.pool(), move |conn| {
CommunityModerator::join(conn, &community_moderator_form)
})
.await??;
}
}
// This return value is unused, so just set an empty vec
Ok(ApubCommunityModerators { 0: vec![] })
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::objects::{
community::tests::parse_lemmy_community,
person::tests::parse_lemmy_person,
tests::{file_to_json_object, init_context},
};
use lemmy_db_schema::{
source::{
community::Community,
person::{Person, PersonForm},
},
traits::Crud,
};
use serial_test::serial;
#[actix_rt::test]
#[serial]
async fn test_parse_lemmy_community_moderators() {
let context = init_context();
let community = parse_lemmy_community(&context).await;
let community_id = community.id;
let old_mod = PersonForm {
name: "holly".into(),
..PersonForm::default()
};
let old_mod = Person::create(&context.pool().get().unwrap(), &old_mod).unwrap();
let community_moderator_form = CommunityModeratorForm {
community_id: community.id,
person_id: old_mod.id,
};
CommunityModerator::join(&context.pool().get().unwrap(), &community_moderator_form).unwrap();
let new_mod = parse_lemmy_person(&context).await;
let json: GroupModerators =
file_to_json_object("assets/lemmy/collections/group_moderators.json");
let url = Url::parse("https://enterprise.lemmy.ml/c/tenforward").unwrap();
let mut request_counter = 0;
let community_context = CommunityContext {
0: community,
1: context,
};
ApubCommunityModerators::from_apub(json, &community_context, &url, &mut request_counter)
.await
.unwrap();
assert_eq!(request_counter, 0);
let current_moderators = blocking(community_context.1.pool(), move |conn| {
CommunityModeratorView::for_community(conn, community_id)
})
.await
.unwrap()
.unwrap();
assert_eq!(current_moderators.len(), 1);
assert_eq!(current_moderators[0].moderator.id, new_mod.id);
Person::delete(&*community_context.1.pool().get().unwrap(), old_mod.id).unwrap();
Person::delete(&*community_context.1.pool().get().unwrap(), new_mod.id).unwrap();
Community::delete(
&*community_context.1.pool().get().unwrap(),
community_context.0.id,
)
.unwrap();
}
}