lemmy/crates/apub/src/activities/community/update.rs

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use crate::{
activities::{
community::{announce::GetCommunity, send_to_community},
generate_activity_id,
verify_activity,
verify_is_public,
verify_mod_action,
verify_person_in_community,
},
activity_lists::AnnouncableActivities,
objects::{community::ApubCommunity, person::ApubPerson},
protocol::activities::community::update::UpdateCommunity,
};
use activitystreams::{activity::kind::UpdateType, public};
use lemmy_api_common::blocking;
use lemmy_apub_lib::{
data::Data,
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object_id::ObjectId,
traits::{ActivityHandler, ActorType, ApubObject},
};
use lemmy_db_schema::{
source::community::{Community, CommunityForm},
traits::Crud,
};
use lemmy_utils::LemmyError;
use lemmy_websocket::{send::send_community_ws_message, LemmyContext, UserOperationCrud};
impl UpdateCommunity {
pub async fn send(
community: ApubCommunity,
actor: &ApubPerson,
context: &LemmyContext,
) -> Result<(), LemmyError> {
let id = generate_activity_id(
UpdateType::Update,
&context.settings().get_protocol_and_hostname(),
)?;
let update = UpdateCommunity {
actor: ObjectId::new(actor.actor_id()),
to: vec![public()],
object: Box::new(community.clone().into_apub(context).await?),
cc: vec![community.actor_id()],
kind: UpdateType::Update,
id: id.clone(),
unparsed: Default::default(),
};
let activity = AnnouncableActivities::UpdateCommunity(update);
send_to_community(activity, &id, actor, &community, vec![], context).await
}
}
#[async_trait::async_trait(?Send)]
impl ActivityHandler for UpdateCommunity {
type DataType = LemmyContext;
async fn verify(
&self,
context: &Data<LemmyContext>,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
verify_is_public(&self.to)?;
verify_activity(&self.id, self.actor.inner(), &context.settings())?;
let community = self.get_community(context, request_counter).await?;
verify_person_in_community(&self.actor, &community, context, request_counter).await?;
verify_mod_action(&self.actor, &community, context, request_counter).await?;
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ApubCommunity::verify(
&self.object,
&community.actor_id.clone().into(),
context,
request_counter,
)
.await?;
Ok(())
}
async fn receive(
self,
context: &Data<LemmyContext>,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
let community = self.get_community(context, request_counter).await?;
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let updated_community = self.object.into_form()?;
let cf = CommunityForm {
name: updated_community.name,
title: updated_community.title,
description: updated_community.description,
nsfw: updated_community.nsfw,
// TODO: icon and banner would be hosted on the other instance, ideally we would copy it to ours
icon: updated_community.icon,
banner: updated_community.banner,
..CommunityForm::default()
};
let updated_community = blocking(context.pool(), move |conn| {
Community::update(conn, community.id, &cf)
})
.await??;
send_community_ws_message(
updated_community.id,
UserOperationCrud::EditCommunity,
None,
None,
context,
)
.await?;
Ok(())
}
}
#[async_trait::async_trait(?Send)]
impl GetCommunity for UpdateCommunity {
async fn get_community(
&self,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<ApubCommunity, LemmyError> {
let cid = ObjectId::new(self.object.id.clone());
cid.dereference(context, request_counter).await
}
}