crates/api_crud/src/post/read.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{blocking, get_local_user_view_from_jwt_opt, mark_post_as_read, post::*};
   4 use lemmy_apub::{build_actor_id_from_shortname, EndpointType};
   5 use lemmy_db_schema::{
   6   from_opt_str_to_opt_enum,
   7   traits::DeleteableOrRemoveable,
   8   ListingType,
   9   SortType,
  10 };
  11 use lemmy_db_views::{
  12   comment_view::CommentQueryBuilder,
  13   post_view::{PostQueryBuilder, PostView},
  14 };
  15 use lemmy_db_views_actor::{
  16   community_moderator_view::CommunityModeratorView,
  17   community_view::CommunityView,
  18 };
  19 use lemmy_utils::{ApiError, ConnectionId, LemmyError};
  20 use lemmy_websocket::{messages::GetPostUsersOnline, LemmyContext};
  21
  22 #[async_trait::async_trait(?Send)]
  23 impl PerformCrud for GetPost {
  24   type Response = GetPostResponse;
  25
  26   async fn perform(
  27     &self,
  28     context: &Data<LemmyContext>,
  29     _websocket_id: Option<ConnectionId>,
  30   ) -> Result<GetPostResponse, LemmyError> {
  31     let data: &GetPost = self;
  32     let local_user_view =
  33       get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
  34
  35     let show_bot_accounts = local_user_view
  36       .as_ref()
  37       .map(|t| t.local_user.show_bot_accounts);
  38     let person_id = local_user_view.map(|u| u.person.id);
  39
  40     let id = data.id;
  41     let mut post_view = blocking(context.pool(), move |conn| {
  42       PostView::read(conn, id, person_id)
  43     })
  44     .await?
  45     .map_err(|e| ApiError::err("couldnt_find_post", e))?;
  46
  47     // Blank out deleted info
  48     if post_view.post.deleted || post_view.post.removed {
  49       post_view.post = post_view.post.blank_out_deleted_or_removed_info();
  50     }
  51
  52     // Mark the post as read
  53     if let Some(person_id) = person_id {
  54       mark_post_as_read(person_id, id, context.pool()).await?;
  55     }
  56
  57     let id = data.id;
  58     let mut comments = blocking(context.pool(), move |conn| {
  59       CommentQueryBuilder::create(conn)
  60         .my_person_id(person_id)
  61         .show_bot_accounts(show_bot_accounts)
  62         .post_id(id)
  63         .limit(9999)
  64         .list()
  65     })
  66     .await??;
  67
  68     // Blank out deleted or removed info
  69     for cv in comments
  70       .iter_mut()
  71       .filter(|cv| cv.comment.deleted || cv.comment.removed)
  72     {
  73       cv.comment = cv.to_owned().comment.blank_out_deleted_or_removed_info();
  74     }
  75
  76     let community_id = post_view.community.id;
  77     let moderators = blocking(context.pool(), move |conn| {
  78       CommunityModeratorView::for_community(conn, community_id)
  79     })
  80     .await??;
  81
  82     // Necessary for the sidebar
  83     let mut community_view = blocking(context.pool(), move |conn| {
  84       CommunityView::read(conn, community_id, person_id)
  85     })
  86     .await?
  87     .map_err(|e| ApiError::err("couldnt_find_community", e))?;
  88
  89     // Blank out deleted or removed info
  90     if community_view.community.deleted || community_view.community.removed {
  91       community_view.community = community_view.community.blank_out_deleted_or_removed_info();
  92     }
  93
  94     let online = context
  95       .chat_server()
  96       .send(GetPostUsersOnline { post_id: data.id })
  97       .await
  98       .unwrap_or(1);
  99
 100     // Return the jwt
 101     Ok(GetPostResponse {
 102       post_view,
 103       community_view,
 104       comments,
 105       moderators,
 106       online,
 107     })
 108   }
 109 }
 110
 111 #[async_trait::async_trait(?Send)]
 112 impl PerformCrud for GetPosts {
 113   type Response = GetPostsResponse;
 114
 115   async fn perform(
 116     &self,
 117     context: &Data<LemmyContext>,
 118     _websocket_id: Option<ConnectionId>,
 119   ) -> Result<GetPostsResponse, LemmyError> {
 120     let data: &GetPosts = self;
 121     let local_user_view =
 122       get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
 123
 124     let person_id = local_user_view.to_owned().map(|l| l.person.id);
 125
 126     let show_nsfw = local_user_view.as_ref().map(|t| t.local_user.show_nsfw);
 127     let show_bot_accounts = local_user_view
 128       .as_ref()
 129       .map(|t| t.local_user.show_bot_accounts);
 130     let show_read_posts = local_user_view
 131       .as_ref()
 132       .map(|t| t.local_user.show_read_posts);
 133
 134     let sort: Option<SortType> = from_opt_str_to_opt_enum(&data.sort);
 135     let listing_type: Option<ListingType> = from_opt_str_to_opt_enum(&data.type_);
 136
 137     let page = data.page;
 138     let limit = data.limit;
 139     let community_id = data.community_id;
 140     let community_actor_id = data
 141       .community_name
 142       .as_ref()
 143       .map(|t| build_actor_id_from_shortname(EndpointType::Community, t, &context.settings()).ok())
 144       .unwrap_or(None);
 145     let saved_only = data.saved_only;
 146
 147     let mut posts = blocking(context.pool(), move |conn| {
 148       PostQueryBuilder::create(conn)
 149         .listing_type(listing_type)
 150         .sort(sort)
 151         .show_nsfw(show_nsfw)
 152         .show_bot_accounts(show_bot_accounts)
 153         .show_read_posts(show_read_posts)
 154         .community_id(community_id)
 155         .community_actor_id(community_actor_id)
 156         .saved_only(saved_only)
 157         .my_person_id(person_id)
 158         .page(page)
 159         .limit(limit)
 160         .list()
 161     })
 162     .await?
 163     .map_err(|e| ApiError::err("couldnt_get_posts", e))?;
 164
 165     // Blank out deleted or removed info
 166     for pv in posts
 167       .iter_mut()
 168       .filter(|p| p.post.deleted || p.post.removed)
 169     {
 170       pv.post = pv.to_owned().post.blank_out_deleted_or_removed_info();
 171     }
 172
 173     Ok(GetPostsResponse { posts })
 174   }
 175 }