119 lines
3.9 KiB
Rust
119 lines
3.9 KiB
Rust
use crate::Perform;
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use actix_web::web::Data;
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use anyhow::Context;
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use lemmy_api_common::{
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community::{GetCommunityResponse, TransferCommunity},
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utils::{blocking, get_local_user_view_from_jwt},
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};
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use lemmy_db_schema::{
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source::{
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community::{CommunityModerator, CommunityModeratorForm},
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moderator::{ModTransferCommunity, ModTransferCommunityForm},
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},
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traits::{Crud, Joinable},
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};
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use lemmy_db_views_actor::structs::{CommunityModeratorView, CommunityView, PersonViewSafe};
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use lemmy_utils::{location_info, ConnectionId, LemmyError};
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use lemmy_websocket::LemmyContext;
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// TODO: we dont do anything for federation here, it should be updated the next time the community
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// gets fetched. i hope we can get rid of the community creator role soon.
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#[async_trait::async_trait(?Send)]
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impl Perform for TransferCommunity {
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type Response = GetCommunityResponse;
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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<GetCommunityResponse, LemmyError> {
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let data: &TransferCommunity = 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 admins = blocking(context.pool(), PersonViewSafe::admins).await??;
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// Fetch the community mods
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let community_id = data.community_id;
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let mut community_mods = blocking(context.pool(), move |conn| {
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CommunityModeratorView::for_community(conn, community_id)
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})
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.await??;
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// Make sure transferrer is either the top community mod, or an admin
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if local_user_view.person.id != community_mods[0].moderator.id
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&& !admins
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.iter()
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.map(|a| a.person.id)
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.any(|x| x == local_user_view.person.id)
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{
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return Err(LemmyError::from_message("not_an_admin"));
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}
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// You have to re-do the community_moderator table, reordering it.
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// Add the transferee to the top
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let creator_index = community_mods
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.iter()
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.position(|r| r.moderator.id == data.person_id)
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.context(location_info!())?;
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let creator_person = community_mods.remove(creator_index);
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community_mods.insert(0, creator_person);
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// Delete all the mods
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let community_id = data.community_id;
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blocking(context.pool(), move |conn| {
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CommunityModerator::delete_for_community(conn, community_id)
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})
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.await??;
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// TODO: this should probably be a bulk operation
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// Re-add the mods, in the new order
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for cmod in &community_mods {
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let community_moderator_form = CommunityModeratorForm {
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community_id: cmod.community.id,
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person_id: cmod.moderator.id,
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};
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let join = move |conn: &'_ _| CommunityModerator::join(conn, &community_moderator_form);
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blocking(context.pool(), join)
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.await?
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.map_err(|e| LemmyError::from_error_message(e, "community_moderator_already_exists"))?;
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}
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// Mod tables
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let form = ModTransferCommunityForm {
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mod_person_id: local_user_view.person.id,
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other_person_id: data.person_id,
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community_id: data.community_id,
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removed: Some(false),
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};
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blocking(context.pool(), move |conn| {
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ModTransferCommunity::create(conn, &form)
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})
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.await??;
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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 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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.map_err(|e| LemmyError::from_error_message(e, "couldnt_find_community"))?;
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let community_id = data.community_id;
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let moderators = blocking(context.pool(), move |conn| {
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CommunityModeratorView::for_community(conn, community_id)
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})
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.await?
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.map_err(|e| LemmyError::from_error_message(e, "couldnt_find_community"))?;
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// Return the jwt
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Ok(GetCommunityResponse {
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community_view,
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site: None,
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moderators,
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online: 0,
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})
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}
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}
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