524 lines
16 KiB
Rust
524 lines
16 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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blocking,
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check_community_ban,
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check_community_deleted_or_removed,
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community::*,
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get_local_user_view_from_jwt,
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is_mod_or_admin,
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remove_user_data_in_community,
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};
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use lemmy_apub::{
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activities::block::SiteOrCommunity,
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objects::{community::ApubCommunity, person::ApubPerson},
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protocol::activities::{
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block::{block_user::BlockUser, undo_block_user::UndoBlockUser},
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community::{add_mod::AddMod, remove_mod::RemoveMod},
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following::{follow::FollowCommunity as FollowCommunityApub, undo_follow::UndoFollowCommunity},
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},
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};
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use lemmy_db_schema::{
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source::{
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community::{
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Community,
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CommunityFollower,
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CommunityFollowerForm,
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CommunityModerator,
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CommunityModeratorForm,
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CommunityPersonBan,
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CommunityPersonBanForm,
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},
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community_block::{CommunityBlock, CommunityBlockForm},
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moderator::{
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ModAddCommunity,
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ModAddCommunityForm,
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ModBanFromCommunity,
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ModBanFromCommunityForm,
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ModTransferCommunity,
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ModTransferCommunityForm,
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},
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person::Person,
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},
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traits::{Bannable, Blockable, Crud, Followable, Joinable},
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};
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use lemmy_db_views_actor::{
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community_moderator_view::CommunityModeratorView,
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community_view::CommunityView,
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person_view::PersonViewSafe,
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};
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use lemmy_utils::{location_info, utils::naive_from_unix, ConnectionId, LemmyError};
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use lemmy_websocket::{messages::SendCommunityRoomMessage, LemmyContext, UserOperation};
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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(LemmyError::from)
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.map_err(|e| e.with_message("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(LemmyError::from)
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.map_err(|e| e.with_message("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(LemmyError::from)
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.map_err(|e| e.with_message("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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#[async_trait::async_trait(?Send)]
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impl Perform for BlockCommunity {
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type Response = BlockCommunityResponse;
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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<BlockCommunityResponse, LemmyError> {
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let data: &BlockCommunity = 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 person_id = local_user_view.person.id;
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let community_block_form = CommunityBlockForm {
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person_id,
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community_id,
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};
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if data.block {
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let block = move |conn: &'_ _| CommunityBlock::block(conn, &community_block_form);
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blocking(context.pool(), block)
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.await?
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.map_err(LemmyError::from)
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.map_err(|e| e.with_message("community_block_already_exists"))?;
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// Also, unfollow the community, and send a federated unfollow
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let community_follower_form = CommunityFollowerForm {
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community_id: data.community_id,
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person_id,
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pending: false,
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};
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blocking(context.pool(), move |conn: &'_ _| {
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CommunityFollower::unfollow(conn, &community_follower_form)
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})
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.await?
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.ok();
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let community = 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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UndoFollowCommunity::send(&local_user_view.person.into(), &community.into(), context).await?;
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} else {
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let unblock = move |conn: &'_ _| CommunityBlock::unblock(conn, &community_block_form);
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blocking(context.pool(), unblock)
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.await?
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.map_err(LemmyError::from)
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.map_err(|e| e.with_message("community_block_already_exists"))?;
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}
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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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Ok(BlockCommunityResponse {
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blocked: data.block,
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community_view,
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})
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}
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}
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#[async_trait::async_trait(?Send)]
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impl Perform for BanFromCommunity {
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type Response = BanFromCommunityResponse;
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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<BanFromCommunityResponse, LemmyError> {
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let data: &BanFromCommunity = 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 banned_person_id = data.person_id;
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let remove_data = data.remove_data.unwrap_or(false);
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let expires = data.expires.map(naive_from_unix);
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// Verify that only mods or admins can ban
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is_mod_or_admin(context.pool(), local_user_view.person.id, community_id).await?;
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let community_user_ban_form = CommunityPersonBanForm {
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community_id: data.community_id,
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person_id: data.person_id,
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expires: Some(expires),
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};
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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 banned_person: ApubPerson = blocking(context.pool(), move |conn: &'_ _| {
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Person::read(conn, banned_person_id)
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})
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.await??
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.into();
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if data.ban {
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let ban = move |conn: &'_ _| CommunityPersonBan::ban(conn, &community_user_ban_form);
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blocking(context.pool(), ban)
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.await?
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.map_err(LemmyError::from)
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.map_err(|e| e.with_message("community_user_already_banned"))?;
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// Also unsubscribe them from the community, if they are subscribed
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let community_follower_form = CommunityFollowerForm {
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community_id: data.community_id,
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person_id: banned_person_id,
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pending: false,
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};
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blocking(context.pool(), move |conn: &'_ _| {
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CommunityFollower::unfollow(conn, &community_follower_form)
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})
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.await?
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.ok();
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BlockUser::send(
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&SiteOrCommunity::Community(community),
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&banned_person,
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&local_user_view.person.clone().into(),
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remove_data,
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data.reason.clone(),
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expires,
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context,
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)
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.await?;
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} else {
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let unban = move |conn: &'_ _| CommunityPersonBan::unban(conn, &community_user_ban_form);
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blocking(context.pool(), unban)
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.await?
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.map_err(LemmyError::from)
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.map_err(|e| e.with_message("community_user_already_banned"))?;
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UndoBlockUser::send(
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&SiteOrCommunity::Community(community),
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&banned_person,
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&local_user_view.person.clone().into(),
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data.reason.clone(),
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context,
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)
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.await?;
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}
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// Remove/Restore their data if that's desired
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if remove_data {
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remove_user_data_in_community(community_id, banned_person_id, context.pool()).await?;
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}
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// Mod tables
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let form = ModBanFromCommunityForm {
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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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reason: data.reason.to_owned(),
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banned: Some(data.ban),
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expires,
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};
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blocking(context.pool(), move |conn| {
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ModBanFromCommunity::create(conn, &form)
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})
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.await??;
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let person_id = data.person_id;
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let person_view = blocking(context.pool(), move |conn| {
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PersonViewSafe::read(conn, person_id)
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})
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.await??;
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let res = BanFromCommunityResponse {
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person_view,
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banned: data.ban,
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};
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context.chat_server().do_send(SendCommunityRoomMessage {
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op: UserOperation::BanFromCommunity,
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response: res.clone(),
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community_id,
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websocket_id,
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});
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Ok(res)
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}
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}
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#[async_trait::async_trait(?Send)]
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impl Perform for AddModToCommunity {
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type Response = AddModToCommunityResponse;
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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<AddModToCommunityResponse, LemmyError> {
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let data: &AddModToCommunity = 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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// Verify that only mods or admins can add mod
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is_mod_or_admin(context.pool(), local_user_view.person.id, community_id).await?;
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let community = 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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if local_user_view.person.admin && !community.local {
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return Err(LemmyError::from_message("not_a_moderator"));
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}
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// Update in local database
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let community_moderator_form = CommunityModeratorForm {
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community_id: data.community_id,
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person_id: data.person_id,
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};
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if data.added {
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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(LemmyError::from)
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.map_err(|e| e.with_message("community_moderator_already_exists"))?;
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} else {
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let leave = move |conn: &'_ _| CommunityModerator::leave(conn, &community_moderator_form);
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blocking(context.pool(), leave)
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.await?
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.map_err(LemmyError::from)
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.map_err(|e| e.with_message("community_moderator_already_exists"))?;
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}
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// Mod tables
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let form = ModAddCommunityForm {
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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(!data.added),
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};
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blocking(context.pool(), move |conn| {
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ModAddCommunity::create(conn, &form)
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})
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.await??;
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// Send to federated instances
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let updated_mod_id = data.person_id;
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let updated_mod: ApubPerson = blocking(context.pool(), move |conn| {
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Person::read(conn, updated_mod_id)
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})
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.await??
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.into();
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let community: ApubCommunity = community.into();
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if data.added {
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AddMod::send(
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&community,
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&updated_mod,
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&local_user_view.person.into(),
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context,
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)
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.await?;
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} else {
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RemoveMod::send(
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&community,
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&updated_mod,
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&local_user_view.person.into(),
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context,
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)
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.await?;
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}
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// Note: in case a remote mod is added, this returns the old moderators list, it will only get
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// updated once we receive an activity from the community (like `Announce/Add/Moderator`)
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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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let res = AddModToCommunityResponse { moderators };
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context.chat_server().do_send(SendCommunityRoomMessage {
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op: UserOperation::AddModToCommunity,
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response: res.clone(),
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community_id,
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websocket_id,
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});
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Ok(res)
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}
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}
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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(LemmyError::from)
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.map_err(|e| e.with_message("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;
|
|
let community_view = blocking(context.pool(), move |conn| {
|
|
CommunityView::read(conn, community_id, Some(person_id))
|
|
})
|
|
.await?
|
|
.map_err(LemmyError::from)
|
|
.map_err(|e| e.with_message("couldnt_find_community"))?;
|
|
|
|
let community_id = data.community_id;
|
|
let moderators = blocking(context.pool(), move |conn| {
|
|
CommunityModeratorView::for_community(conn, community_id)
|
|
})
|
|
.await?
|
|
.map_err(LemmyError::from)
|
|
.map_err(|e| e.with_message("couldnt_find_community"))?;
|
|
|
|
// Return the jwt
|
|
Ok(GetCommunityResponse {
|
|
community_view,
|
|
moderators,
|
|
online: 0,
|
|
})
|
|
}
|
|
}
|