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

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use crate::{
objects::{community::ApubCommunity, person::ApubPerson},
protocol::collections::group_moderators::GroupModerators,
};
use activitypub_federation::{
config::Data,
fetch::object_id::ObjectId,
kinds::collection::OrderedCollectionType,
protocol::verification::verify_domains_match,
traits::Collection,
};
use lemmy_api_common::{context::LemmyContext, utils::generate_moderators_url};
use lemmy_db_schema::{
source::community::{CommunityModerator, CommunityModeratorForm},
traits::Joinable,
};
use lemmy_db_views_actor::structs::CommunityModeratorView;
use lemmy_utils::error::LemmyError;
use url::Url;
#[derive(Clone, Debug)]
pub(crate) struct ApubCommunityModerators(pub(crate) Vec<CommunityModeratorView>);
#[async_trait::async_trait]
impl Collection for ApubCommunityModerators {
type Owner = ApubCommunity;
type DataType = LemmyContext;
type Kind = GroupModerators;
type Error = LemmyError;
#[tracing::instrument(skip_all)]
async fn read_local(
owner: &Self::Owner,
data: &Data<Self::DataType>,
) -> Result<Self::Kind, LemmyError> {
let moderators = CommunityModeratorView::for_community(data.pool(), owner.id).await?;
let ordered_items = moderators
.into_iter()
.map(|m| ObjectId::<ApubPerson>::from(m.moderator.actor_id))
.collect();
Ok(GroupModerators {
r#type: OrderedCollectionType::OrderedCollection,
id: generate_moderators_url(&owner.actor_id)?.into(),
ordered_items,
})
}
#[tracing::instrument(skip_all)]
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async fn verify(
group_moderators: &GroupModerators,
expected_domain: &Url,
_data: &Data<Self::DataType>,
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) -> Result<(), LemmyError> {
verify_domains_match(&group_moderators.id, expected_domain)?;
Ok(())
}
#[tracing::instrument(skip_all)]
async fn from_json(
apub: Self::Kind,
owner: &Self::Owner,
data: &Data<Self::DataType>,
) -> Result<Self, LemmyError> {
let community_id = owner.id;
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let current_moderators =
CommunityModeratorView::for_community(data.pool(), community_id).await?;
// Remove old mods from database which arent in the moderators collection anymore
for mod_user in &current_moderators {
let mod_id = ObjectId::from(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,
};
CommunityModerator::leave(data.pool(), &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_user: ApubPerson = mod_id.dereference(data).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: owner.id,
person_id: mod_user.id,
};
CommunityModerator::join(data.pool(), &community_moderator_form).await?;
}
}
// This return value is unused, so just set an empty vec
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Ok(ApubCommunityModerators(Vec::new()))
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::{
objects::{
community::tests::parse_lemmy_community,
person::tests::parse_lemmy_person,
tests::init_context,
},
protocol::tests::file_to_json_object,
};
use lemmy_db_schema::{
source::{
community::Community,
instance::Instance,
person::{Person, PersonInsertForm},
site::Site,
},
traits::Crud,
};
use serial_test::serial;
#[actix_rt::test]
#[serial]
async fn test_parse_lemmy_community_moderators() {
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let context = init_context().await;
let (new_mod, site) = parse_lemmy_person(&context).await;
let community = parse_lemmy_community(&context).await;
let community_id = community.id;
let inserted_instance = Instance::read_or_create(context.pool(), "my_domain.tld".to_string())
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.await
.unwrap();
let old_mod = PersonInsertForm::builder()
.name("holly".into())
.public_key("pubkey".to_string())
.instance_id(inserted_instance.id)
.build();
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let old_mod = Person::create(context.pool(), &old_mod).await.unwrap();
let community_moderator_form = CommunityModeratorForm {
community_id: community.id,
person_id: old_mod.id,
};
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CommunityModerator::join(context.pool(), &community_moderator_form)
.await
.unwrap();
assert_eq!(site.actor_id.to_string(), "https://enterprise.lemmy.ml/");
let json: GroupModerators =
file_to_json_object("assets/lemmy/collections/group_moderators.json").unwrap();
let url = Url::parse("https://enterprise.lemmy.ml/c/tenforward").unwrap();
ApubCommunityModerators::verify(&json, &url, &context)
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.await
.unwrap();
ApubCommunityModerators::from_json(json, &community, &context)
.await
.unwrap();
assert_eq!(context.request_count(), 0);
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let current_moderators = CommunityModeratorView::for_community(context.pool(), community_id)
.await
.unwrap();
assert_eq!(current_moderators.len(), 1);
assert_eq!(current_moderators[0].moderator.id, new_mod.id);
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Person::delete(context.pool(), old_mod.id).await.unwrap();
Person::delete(context.pool(), new_mod.id).await.unwrap();
Community::delete(context.pool(), community.id)
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.await
.unwrap();
Site::delete(context.pool(), site.id).await.unwrap();
Instance::delete(context.pool(), inserted_instance.id)
.await
.unwrap();
}
}