lemmy/crates/apub/src/api/read_community.rs

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3.5 KiB
Rust
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use crate::{
api::PerformApub,
fetcher::resolve_actor_identifier,
objects::community::ApubCommunity,
};
use actix_web::web::Data;
use lemmy_api_common::{
community::{GetCommunity, GetCommunityResponse},
context::LemmyContext,
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utils::{check_private_instance, get_local_user_view_from_jwt_opt},
};
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use lemmy_db_schema::{
impls::actor_language::default_post_language,
source::{
actor_language::CommunityLanguage,
community::Community,
local_site::LocalSite,
site::Site,
},
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traits::DeleteableOrRemoveable,
};
use lemmy_db_views_actor::structs::{CommunityModeratorView, CommunityView};
use lemmy_utils::{error::LemmyError, ConnectionId};
#[async_trait::async_trait(?Send)]
impl PerformApub for GetCommunity {
type Response = GetCommunityResponse;
#[tracing::instrument(skip(context, _websocket_id))]
async fn perform(
&self,
context: &Data<LemmyContext>,
_websocket_id: Option<ConnectionId>,
) -> Result<GetCommunityResponse, LemmyError> {
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let data: &GetCommunity = self;
let local_user_view =
get_local_user_view_from_jwt_opt(data.auth.as_ref(), context.pool(), context.secret())
.await?;
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let local_site = LocalSite::read(context.pool()).await?;
if data.name.is_none() && data.id.is_none() {
return Err(LemmyError::from_message("no_id_given"));
}
check_private_instance(&local_user_view, &local_site)?;
let person_id = local_user_view.as_ref().map(|u| u.person.id);
let community_id = match data.id {
Some(id) => id,
None => {
let name = data.name.clone().unwrap_or_else(|| "main".to_string());
resolve_actor_identifier::<ApubCommunity, Community>(&name, context, true)
.await
.map_err(|e| e.with_message("couldnt_find_community"))?
.id
}
};
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let mut community_view = CommunityView::read(context.pool(), community_id, person_id)
.await
.map_err(|e| LemmyError::from_error_message(e, "couldnt_find_community"))?;
// Blank out deleted or removed info for non-logged in users
if person_id.is_none() && (community_view.community.deleted || community_view.community.removed)
{
community_view.community = community_view.community.blank_out_deleted_or_removed_info();
}
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let moderators = CommunityModeratorView::for_community(context.pool(), community_id)
.await
.map_err(|e| LemmyError::from_error_message(e, "couldnt_find_community"))?;
let online = context
.chat_server()
.get_community_users_online(community_id)?;
let site_id =
Site::instance_actor_id_from_url(community_view.community.actor_id.clone().into());
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let mut site = Site::read_from_apub_id(context.pool(), site_id).await?;
// no need to include metadata for local site (its already available through other endpoints).
// this also prevents us from leaking the federation private key.
if let Some(s) = &site {
if s.actor_id.domain() == Some(context.settings().hostname.as_ref()) {
site = None;
}
}
let community_id = community_view.community.id;
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let discussion_languages = CommunityLanguage::read(context.pool(), community_id).await?;
let default_post_language = if let Some(user) = local_user_view {
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default_post_language(context.pool(), community_id, user.local_user.id).await?
} else {
None
};
let res = GetCommunityResponse {
community_view,
site,
moderators,
online,
discussion_languages,
default_post_language,
};
// Return the jwt
Ok(res)
}
}