mirror of https://github.com/LemmyNet/lemmy.git
100 lines
3.4 KiB
Rust
100 lines
3.4 KiB
Rust
use crate::Perform;
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use actix_web::web::Data;
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use lemmy_api_common::{
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community::{CommunityResponse, FollowCommunity},
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utils::{
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blocking,
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check_community_ban,
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check_community_deleted_or_removed,
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get_local_user_view_from_jwt,
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},
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};
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use lemmy_apub::{
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objects::community::ApubCommunity,
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protocol::activities::following::{
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follow::FollowCommunity as FollowCommunityApub,
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undo_follow::UndoFollowCommunity,
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},
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};
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use lemmy_db_schema::{
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source::community::{Community, CommunityFollower, CommunityFollowerForm},
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traits::{Crud, Followable},
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};
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use lemmy_db_views_actor::structs::CommunityView;
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use lemmy_utils::{ConnectionId, LemmyError};
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use lemmy_websocket::LemmyContext;
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#[async_trait::async_trait(?Send)]
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impl Perform for FollowCommunity {
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type Response = CommunityResponse;
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#[tracing::instrument(skip(context, _websocket_id))]
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async fn perform(
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&self,
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context: &Data<LemmyContext>,
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_websocket_id: Option<ConnectionId>,
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) -> Result<CommunityResponse, LemmyError> {
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let data: &FollowCommunity = self;
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let local_user_view =
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get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
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let community_id = data.community_id;
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let community: ApubCommunity = blocking(context.pool(), move |conn| {
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Community::read(conn, community_id)
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})
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.await??
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.into();
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let community_follower_form = CommunityFollowerForm {
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community_id: data.community_id,
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person_id: local_user_view.person.id,
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pending: false,
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};
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if community.local {
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if data.follow {
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check_community_ban(local_user_view.person.id, community_id, context.pool()).await?;
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check_community_deleted_or_removed(community_id, context.pool()).await?;
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let follow = move |conn: &'_ _| CommunityFollower::follow(conn, &community_follower_form);
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blocking(context.pool(), follow)
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.await?
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.map_err(|e| LemmyError::from_error_message(e, "community_follower_already_exists"))?;
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} else {
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let unfollow =
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move |conn: &'_ _| CommunityFollower::unfollow(conn, &community_follower_form);
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blocking(context.pool(), unfollow)
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.await?
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.map_err(|e| LemmyError::from_error_message(e, "community_follower_already_exists"))?;
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}
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} else if data.follow {
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// Dont actually add to the community followers here, because you need
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// to wait for the accept
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FollowCommunityApub::send(&local_user_view.person.clone().into(), &community, context)
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.await?;
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} else {
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UndoFollowCommunity::send(&local_user_view.person.clone().into(), &community, context)
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.await?;
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let unfollow = move |conn: &'_ _| CommunityFollower::unfollow(conn, &community_follower_form);
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blocking(context.pool(), unfollow)
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.await?
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.map_err(|e| LemmyError::from_error_message(e, "community_follower_already_exists"))?;
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}
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let community_id = data.community_id;
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let person_id = local_user_view.person.id;
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let mut community_view = blocking(context.pool(), move |conn| {
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CommunityView::read(conn, community_id, Some(person_id))
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})
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.await??;
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// TODO: this needs to return a "pending" state, until Accept is received from the remote server
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// For now, just assume that remote follows are accepted.
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// Otherwise, the subscribed will be null
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if !community.local {
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community_view.subscribed = data.follow;
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}
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Ok(CommunityResponse { community_view })
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}
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}
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