crates/api_crud/src/post/delete.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   blocking,
   5   check_community_ban,
   6   check_community_deleted_or_removed,
   7   get_local_user_view_from_jwt,
   8   is_mod_or_admin,
   9   post::*,
  10 };
  11 use lemmy_apub::activities::deletion::{send_apub_delete_in_community, DeletableObjects};
  12 use lemmy_db_schema::{
  13   source::{
  14     community::Community,
  15     moderator::{ModRemovePost, ModRemovePostForm},
  16     post::Post,
  17   },
  18   traits::Crud,
  19 };
  20 use lemmy_utils::{ConnectionId, LemmyError};
  21 use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud};
  22
  23 #[async_trait::async_trait(?Send)]
  24 impl PerformCrud for DeletePost {
  25   type Response = PostResponse;
  26
  27   #[tracing::instrument(skip(context, websocket_id))]
  28   async fn perform(
  29     &self,
  30     context: &Data<LemmyContext>,
  31     websocket_id: Option<ConnectionId>,
  32   ) -> Result<PostResponse, LemmyError> {
  33     let data: &DeletePost = self;
  34     let local_user_view =
  35       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  36
  37     let post_id = data.post_id;
  38     let orig_post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
  39
  40     // Dont delete it if its already been deleted.
  41     if orig_post.deleted == data.deleted {
  42       return Err(LemmyError::from_message("couldnt_update_post"));
  43     }
  44
  45     check_community_ban(
  46       local_user_view.person.id,
  47       orig_post.community_id,
  48       context.pool(),
  49     )
  50     .await?;
  51     check_community_deleted_or_removed(orig_post.community_id, context.pool()).await?;
  52
  53     // Verify that only the creator can delete
  54     if !Post::is_post_creator(local_user_view.person.id, orig_post.creator_id) {
  55       return Err(LemmyError::from_message("no_post_edit_allowed"));
  56     }
  57
  58     // Update the post
  59     let post_id = data.post_id;
  60     let deleted = data.deleted;
  61     let updated_post = blocking(context.pool(), move |conn| {
  62       Post::update_deleted(conn, post_id, deleted)
  63     })
  64     .await??;
  65
  66     let res = send_post_ws_message(
  67       data.post_id,
  68       UserOperationCrud::DeletePost,
  69       websocket_id,
  70       Some(local_user_view.person.id),
  71       context,
  72     )
  73     .await?;
  74
  75     // apub updates
  76     let community = blocking(context.pool(), move |conn| {
  77       Community::read(conn, orig_post.community_id)
  78     })
  79     .await??;
  80     let deletable = DeletableObjects::Post(Box::new(updated_post.into()));
  81     send_apub_delete_in_community(
  82       local_user_view.person,
  83       community,
  84       deletable,
  85       None,
  86       deleted,
  87       context,
  88     )
  89     .await?;
  90     Ok(res)
  91   }
  92 }
  93
  94 #[async_trait::async_trait(?Send)]
  95 impl PerformCrud for RemovePost {
  96   type Response = PostResponse;
  97
  98   #[tracing::instrument(skip(context, websocket_id))]
  99   async fn perform(
 100     &self,
 101     context: &Data<LemmyContext>,
 102     websocket_id: Option<ConnectionId>,
 103   ) -> Result<PostResponse, LemmyError> {
 104     let data: &RemovePost = self;
 105     let local_user_view =
 106       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
 107
 108     let post_id = data.post_id;
 109     let orig_post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
 110
 111     check_community_ban(
 112       local_user_view.person.id,
 113       orig_post.community_id,
 114       context.pool(),
 115     )
 116     .await?;
 117
 118     // Verify that only the mods can remove
 119     is_mod_or_admin(
 120       context.pool(),
 121       local_user_view.person.id,
 122       orig_post.community_id,
 123     )
 124     .await?;
 125
 126     // Update the post
 127     let post_id = data.post_id;
 128     let removed = data.removed;
 129     let updated_post = blocking(context.pool(), move |conn| {
 130       Post::update_removed(conn, post_id, removed)
 131     })
 132     .await??;
 133
 134     // Mod tables
 135     let form = ModRemovePostForm {
 136       mod_person_id: local_user_view.person.id,
 137       post_id: data.post_id,
 138       removed: Some(removed),
 139       reason: data.reason.to_owned(),
 140     };
 141     blocking(context.pool(), move |conn| {
 142       ModRemovePost::create(conn, &form)
 143     })
 144     .await??;
 145
 146     let res = send_post_ws_message(
 147       data.post_id,
 148       UserOperationCrud::RemovePost,
 149       websocket_id,
 150       Some(local_user_view.person.id),
 151       context,
 152     )
 153     .await?;
 154
 155     // apub updates
 156     let community = blocking(context.pool(), move |conn| {
 157       Community::read(conn, orig_post.community_id)
 158     })
 159     .await??;
 160     let deletable = DeletableObjects::Post(Box::new(updated_post.into()));
 161     send_apub_delete_in_community(
 162       local_user_view.person,
 163       community,
 164       deletable,
 165       data.reason.clone().or_else(|| Some("".to_string())),
 166       removed,
 167       context,
 168     )
 169     .await?;
 170     Ok(res)
 171   }
 172 }