lemmy/crates/api_crud/src/community/read.rs

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use crate::PerformCrud;
use actix_web::web::Data;
use lemmy_api_common::{blocking, community::*, get_local_user_view_from_jwt_opt};
use lemmy_apub::{
build_actor_id_from_shortname,
fetcher::object_id::ObjectId,
objects::community::ApubCommunity,
EndpointType,
};
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use lemmy_db_schema::{
from_opt_str_to_opt_enum,
traits::DeleteableOrRemoveable,
ListingType,
SortType,
};
use lemmy_db_views_actor::{
community_moderator_view::CommunityModeratorView,
community_view::{CommunityQueryBuilder, CommunityView},
};
use lemmy_utils::{ApiError, ConnectionId, LemmyError};
use lemmy_websocket::{messages::GetCommunityUsersOnline, LemmyContext};
#[async_trait::async_trait(?Send)]
impl PerformCrud for GetCommunity {
type Response = GetCommunityResponse;
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, context.pool(), context.secret()).await?;
let person_id = local_user_view.map(|u| u.person.id);
let community_id = match data.id {
Some(id) => id,
None => {
let name = data.name.to_owned().unwrap_or_else(|| "main".to_string());
let community_actor_id =
build_actor_id_from_shortname(EndpointType::Community, &name, &context.settings())?;
ObjectId::<ApubCommunity>::new(community_actor_id)
.dereference(context, &mut 0)
.await
.map_err(|e| ApiError::err("couldnt_find_community", e))?
.id
}
};
let mut community_view = blocking(context.pool(), move |conn| {
CommunityView::read(conn, community_id, person_id)
})
.await?
.map_err(|e| ApiError::err("couldnt_find_community", e))?;
// Blank out deleted or removed info
if community_view.community.deleted || community_view.community.removed {
community_view.community = community_view.community.blank_out_deleted_or_removed_info();
}
let moderators: Vec<CommunityModeratorView> = blocking(context.pool(), move |conn| {
CommunityModeratorView::for_community(conn, community_id)
})
.await?
.map_err(|e| ApiError::err("couldnt_find_community", e))?;
let online = context
.chat_server()
.send(GetCommunityUsersOnline { community_id })
.await
.unwrap_or(1);
let res = GetCommunityResponse {
community_view,
moderators,
online,
};
// Return the jwt
Ok(res)
}
}
#[async_trait::async_trait(?Send)]
impl PerformCrud for ListCommunities {
type Response = ListCommunitiesResponse;
async fn perform(
&self,
context: &Data<LemmyContext>,
_websocket_id: Option<ConnectionId>,
) -> Result<ListCommunitiesResponse, LemmyError> {
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let data: &ListCommunities = self;
let local_user_view =
get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
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let person_id = local_user_view.to_owned().map(|l| l.person.id);
// Don't show NSFW by default
let show_nsfw = match &local_user_view {
Some(uv) => uv.local_user.show_nsfw,
None => false,
};
let sort: Option<SortType> = from_opt_str_to_opt_enum(&data.sort);
let listing_type: Option<ListingType> = from_opt_str_to_opt_enum(&data.type_);
let page = data.page;
let limit = data.limit;
let mut communities = blocking(context.pool(), move |conn| {
CommunityQueryBuilder::create(conn)
.listing_type(listing_type)
.sort(sort)
.show_nsfw(show_nsfw)
.my_person_id(person_id)
.page(page)
.limit(limit)
.list()
})
.await??;
// Blank out deleted or removed info
for cv in communities
.iter_mut()
.filter(|cv| cv.community.deleted || cv.community.removed)
{
cv.community = cv.to_owned().community.blank_out_deleted_or_removed_info();
}
// Return the jwt
Ok(ListCommunitiesResponse { communities })
}
}